<?xml version="1.0" encoding="US-ASCII"?>
<!-- Generated by CompSci Transform (tm) - http://www.compsciresources.com -->
<!-- Created: Tue Mar 29 20:37:51 UTC 2022 -->
<linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:xbrldt="http://xbrl.org/2005/xbrldt">
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ConsolidatedBalanceSheet" roleURI="http://thcb.com/role/ConsolidatedBalanceSheet"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ConsolidatedBalanceSheet_Parentheticals" roleURI="http://thcb.com/role/ConsolidatedBalanceSheet_Parentheticals"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ConsolidatedIncomeStatement" roleURI="http://thcb.com/role/ConsolidatedIncomeStatement"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ConsolidatedComprehensiveIncome" roleURI="http://thcb.com/role/ConsolidatedComprehensiveIncome"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ShareholdersEquityType2or3" roleURI="http://thcb.com/role/ShareholdersEquityType2or3"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ConsolidatedCashFlow" roleURI="http://thcb.com/role/ConsolidatedCashFlow"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_DescriptionofOrganizationandBusinessOperations" roleURI="http://thcb.com/role/DescriptionofOrganizationandBusinessOperations"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_SignificantAccountingPolicies" roleURI="http://thcb.com/role/SignificantAccountingPolicies"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ReverseRecapitalization" roleURI="http://thcb.com/role/ReverseRecapitalization"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_AccountsReceivable" roleURI="http://thcb.com/role/AccountsReceivable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_InventoriesNet" roleURI="http://thcb.com/role/InventoriesNet"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_PrepaidExpensesandOtherCurrentAssets" roleURI="http://thcb.com/role/PrepaidExpensesandOtherCurrentAssets"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_PropertyPlantandEquipmentNet" roleURI="http://thcb.com/role/PropertyPlantandEquipmentNet"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_LandUseRightsNet" roleURI="http://thcb.com/role/LandUseRightsNet"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_AcquiredIntangibleAssetsNet" roleURI="http://thcb.com/role/AcquiredIntangibleAssetsNet"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_AccruedExpensesandOtherCurrentLiabilities" roleURI="http://thcb.com/role/AccruedExpensesandOtherCurrentLiabilities"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ProductWarranty" roleURI="http://thcb.com/role/ProductWarranty"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_BankBorrowings" roleURI="http://thcb.com/role/BankBorrowings"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_OtherNonCurrentLiabilities" roleURI="http://thcb.com/role/OtherNonCurrentLiabilities"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_BondsPayable" roleURI="http://thcb.com/role/BondsPayable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_Warrants" roleURI="http://thcb.com/role/Warrants"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_FairValueMeasurement" roleURI="http://thcb.com/role/FairValueMeasurement"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_IncomeTaxes" roleURI="http://thcb.com/role/IncomeTaxes"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_NoncontrollingInterests" roleURI="http://thcb.com/role/NoncontrollingInterests"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_CommonStock" roleURI="http://thcb.com/role/CommonStock"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_PreferredShares" roleURI="http://thcb.com/role/PreferredShares"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_Sharebasedpayment" roleURI="http://thcb.com/role/Sharebasedpayment"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_MainlandChinaContributionPlan" roleURI="http://thcb.com/role/MainlandChinaContributionPlan"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_StatutoryReservesandRestrictedNetAssets" roleURI="http://thcb.com/role/StatutoryReservesandRestrictedNetAssets"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_SegmentInformation" roleURI="http://thcb.com/role/SegmentInformation"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_RelatedPartyBalancesandTransactions" roleURI="http://thcb.com/role/RelatedPartyBalancesandTransactions"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_NetLossPerShare" roleURI="http://thcb.com/role/NetLossPerShare"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_CommitmentsandContingencies" roleURI="http://thcb.com/role/CommitmentsandContingencies"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_SubsequentEvents" roleURI="http://thcb.com/role/SubsequentEvents"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleICondensedFinancialInformationofParentCompany" roleURI="http://thcb.com/role/ScheduleICondensedFinancialInformationofParentCompany"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_BasisforPreparation" roleURI="http://thcb.com/role/BasisforPreparation"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_InvestmentsinSubsidiaries" roleURI="http://thcb.com/role/InvestmentsinSubsidiaries"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_AccountingPoliciesByPolicy" roleURI="http://thcb.com/role/AccountingPoliciesByPolicy"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_DescriptionofOrganizationandBusinessOperationsTables" roleURI="http://thcb.com/role/DescriptionofOrganizationandBusinessOperationsTables"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_SignificantAccountingPoliciesTables" roleURI="http://thcb.com/role/SignificantAccountingPoliciesTables"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ReverseRecapitalizationTables" roleURI="http://thcb.com/role/ReverseRecapitalizationTables"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_AccountsReceivableTables" roleURI="http://thcb.com/role/AccountsReceivableTables"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_InventoriesNetTables" roleURI="http://thcb.com/role/InventoriesNetTables"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_PrepaidExpensesandOtherCurrentAssetsTables" roleURI="http://thcb.com/role/PrepaidExpensesandOtherCurrentAssetsTables"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_PropertyPlantandEquipmentNetTables" roleURI="http://thcb.com/role/PropertyPlantandEquipmentNetTables"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_LandUseRightsNetTables" roleURI="http://thcb.com/role/LandUseRightsNetTables"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_AcquiredIntangibleAssetsNetTables" roleURI="http://thcb.com/role/AcquiredIntangibleAssetsNetTables"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_AccruedExpensesandOtherCurrentLiabilitiesTables" roleURI="http://thcb.com/role/AccruedExpensesandOtherCurrentLiabilitiesTables"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ProductWarrantyTables" roleURI="http://thcb.com/role/ProductWarrantyTables"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_BankBorrowingsTables" roleURI="http://thcb.com/role/BankBorrowingsTables"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_OtherNonCurrentLiabilitiesTables" roleURI="http://thcb.com/role/OtherNonCurrentLiabilitiesTables"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_BondsPayableTables" roleURI="http://thcb.com/role/BondsPayableTables"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_WarrantsTables" roleURI="http://thcb.com/role/WarrantsTables"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_FairValueMeasurementTables" roleURI="http://thcb.com/role/FairValueMeasurementTables"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_IncomeTaxesTables" roleURI="http://thcb.com/role/IncomeTaxesTables"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_PreferredSharesTables" roleURI="http://thcb.com/role/PreferredSharesTables"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_SharebasedpaymentTables" roleURI="http://thcb.com/role/SharebasedpaymentTables"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_SegmentInformationTables" roleURI="http://thcb.com/role/SegmentInformationTables"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_RelatedPartyBalancesandTransactionsTables" roleURI="http://thcb.com/role/RelatedPartyBalancesandTransactionsTables"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_NetLossPerShareTables" roleURI="http://thcb.com/role/NetLossPerShareTables"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_CommitmentsandContingenciesTables" roleURI="http://thcb.com/role/CommitmentsandContingenciesTables"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofcompanysmajorsubsidiariesTable" roleURI="http://thcb.com/role/ScheduleofcompanysmajorsubsidiariesTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofpropertyplantandequipmentarecarriedatcostlessaccumulateddepreciationTable" roleURI="http://thcb.com/role/ScheduleofpropertyplantandequipmentarecarriedatcostlessaccumulateddepreciationTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofnetrevenuesfromcustomersTable" roleURI="http://thcb.com/role/ScheduleofnetrevenuesfromcustomersTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofaccountsreceivablefromcustomersTable" roleURI="http://thcb.com/role/ScheduleofaccountsreceivablefromcustomersTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofownershipinterestsofthecompanysstockholdersTable" roleURI="http://thcb.com/role/ScheduleofownershipinterestsofthecompanysstockholdersTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofaccountsreceivableTable" roleURI="http://thcb.com/role/ScheduleofaccountsreceivableTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofallowancefordoubtfulaccountsTable" roleURI="http://thcb.com/role/ScheduleofallowancefordoubtfulaccountsTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofinventoriesTable" roleURI="http://thcb.com/role/ScheduleofinventoriesTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofreceivablesrepresentedtheamountavailableforfuturedeductionagainstVATpayableTable" roleURI="http://thcb.com/role/ScheduleofreceivablesrepresentedtheamountavailableforfuturedeductionagainstVATpayableTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofpropertyplantandequipmentnetTable" roleURI="http://thcb.com/role/ScheduleofpropertyplantandequipmentnetTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleoflanduserightsTable" roleURI="http://thcb.com/role/ScheduleoflanduserightsTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofintangibleassetsnetTable" roleURI="http://thcb.com/role/ScheduleofintangibleassetsnetTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofannualamortizationexpenseTable" roleURI="http://thcb.com/role/ScheduleofannualamortizationexpenseTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofaccruedexpensesandothercurrentliabilitiesTable" roleURI="http://thcb.com/role/ScheduleofaccruedexpensesandothercurrentliabilitiesTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofmovementofproductwarrantyTable" roleURI="http://thcb.com/role/ScheduleofmovementofproductwarrantyTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofbankborrowingsTable" roleURI="http://thcb.com/role/ScheduleofbankborrowingsTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofaggregatecarryingamountoftheassetspledgedbythegroupTable" roleURI="http://thcb.com/role/ScheduleofaggregatecarryingamountoftheassetspledgedbythegroupTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofotherNonCurrentLiabilitiesTable" roleURI="http://thcb.com/role/ScheduleofotherNonCurrentLiabilitiesTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofbondspayableTable" roleURI="http://thcb.com/role/ScheduleofbondspayableTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofrepaymentsandinterestsTable" roleURI="http://thcb.com/role/ScheduleofrepaymentsandinterestsTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofoptimalexerciseoftheCompanysredemptionoptionattheearliestpossibledateTable" roleURI="http://thcb.com/role/ScheduleofoptimalexerciseoftheCompanysredemptionoptionattheearliestpossibledateTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleoffairvaluemeasurementsofgroupsassetsandliabilitiesofrecurringbasisTable" roleURI="http://thcb.com/role/ScheduleoffairvaluemeasurementsofgroupsassetsandliabilitiesofrecurringbasisTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofreconciliationofthebeginningandendingbalancesforassetsandliabilitiesmeasuredatfairvalueonarecurringbasisTable" roleURI="http://thcb.com/role/ScheduleofreconciliationofthebeginningandendingbalancesforassetsandliabilitiesmeasuredatfairvalueonarecurringbasisTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofreconciliationofthebeginningandendingbalancesforLevel3warrantliabilityTable" roleURI="http://thcb.com/role/ScheduleofreconciliationofthebeginningandendingbalancesforLevel3warrantliabilityTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleoflossbeforeprovisionforincometaxesTable" roleURI="http://thcb.com/role/ScheduleoflossbeforeprovisionforincometaxesTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofcurrentanddeferredcomponentsoftheincometaxexpenseTable" roleURI="http://thcb.com/role/ScheduleofcurrentanddeferredcomponentsoftheincometaxexpenseTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofdeferredtaxassetsTable" roleURI="http://thcb.com/role/ScheduleofdeferredtaxassetsTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofvaluationallowanceTable" roleURI="http://thcb.com/role/ScheduleofvaluationallowanceTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofreconciliationbetweentheincometaxexpenseTable" roleURI="http://thcb.com/role/ScheduleofreconciliationbetweentheincometaxexpenseTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofreconciliationbetweentheincometaxexpenseTable_Parentheticals" roleURI="http://thcb.com/role/ScheduleofreconciliationbetweentheincometaxexpenseTable_Parentheticals"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofpreferredsharesissuedandoutstandingTable" roleURI="http://thcb.com/role/ScheduleofpreferredsharesissuedandoutstandingTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofbalanceofSeriesPreferredandredeemablenoncontrollinginterestsTable" roleURI="http://thcb.com/role/ScheduleofbalanceofSeriesPreferredandredeemablenoncontrollinginterestsTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofmodificationdatefairvalueofthestockoptionswasdeterminedusingtheBinomialLatticeModelTable" roleURI="http://thcb.com/role/ScheduleofmodificationdatefairvalueofthestockoptionswasdeterminedusingtheBinomialLatticeModelTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofshareoptionsactivityTable" roleURI="http://thcb.com/role/ScheduleofshareoptionsactivityTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_SchedulenonvestedsharesactivityTable" roleURI="http://thcb.com/role/SchedulenonvestedsharesactivityTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofclassificationofstockbasedcompensationTable" roleURI="http://thcb.com/role/ScheduleofclassificationofstockbasedcompensationTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleoflonglivedassetsclassifiedbymajorgeographicregionsTable" roleURI="http://thcb.com/role/ScheduleoflonglivedassetsclassifiedbymajorgeographicregionsTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofassetsandrevenuesmajorgeographicregionsTable" roleURI="http://thcb.com/role/ScheduleofassetsandrevenuesmajorgeographicregionsTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofrelationshipwiththegroupTable" roleURI="http://thcb.com/role/ScheduleofrelationshipwiththegroupTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofrelatedpartytransactionsTable" roleURI="http://thcb.com/role/ScheduleofrelatedpartytransactionsTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofcomputationofbasicanddilutednetlosspershareTable" roleURI="http://thcb.com/role/ScheduleofcomputationofbasicanddilutednetlosspershareTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleofoutstandingwereexcludedfromthecalculationofdilutednetlossperordinaryshareTable" roleURI="http://thcb.com/role/ScheduleofoutstandingwereexcludedfromthecalculationofdilutednetlossperordinaryshareTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleoffutureminimumpaymentsunderleasecommitmentsTable" roleURI="http://thcb.com/role/ScheduleoffutureminimumpaymentsunderleasecommitmentsTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleICondensedFinancialInformationofParentCompanyBalanceSheetTable" roleURI="http://thcb.com/role/ScheduleICondensedFinancialInformationofParentCompanyBalanceSheetTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleICondensedFinancialInformationofParentCompanyBalanceSheetTable_Parentheticals" roleURI="http://thcb.com/role/ScheduleICondensedFinancialInformationofParentCompanyBalanceSheetTable_Parentheticals"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleICondensedFinancialInformationofParentCompanyStatementofOperationsTable" roleURI="http://thcb.com/role/ScheduleICondensedFinancialInformationofParentCompanyStatementofOperationsTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleICondensedFinancialInformationofParentCompanyStatementsofComprehensiveLossTable" roleURI="http://thcb.com/role/ScheduleICondensedFinancialInformationofParentCompanyStatementsofComprehensiveLossTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ScheduleICondensedFinancialInformationofParentCompanyStatementsofCashFlowsTable" roleURI="http://thcb.com/role/ScheduleICondensedFinancialInformationofParentCompanyStatementsofCashFlowsTable"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_SignificantAccountingPoliciesDetails" roleURI="http://thcb.com/role/SignificantAccountingPoliciesDetails"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ReverseRecapitalizationDetails" roleURI="http://thcb.com/role/ReverseRecapitalizationDetails"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_InventoriesNetDetails" roleURI="http://thcb.com/role/InventoriesNetDetails"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_PropertyPlantandEquipmentNetDetails" roleURI="http://thcb.com/role/PropertyPlantandEquipmentNetDetails"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_LandUseRightsNetDetails" roleURI="http://thcb.com/role/LandUseRightsNetDetails"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_AcquiredIntangibleAssetsNetDetails" roleURI="http://thcb.com/role/AcquiredIntangibleAssetsNetDetails"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_ProductWarrantyDetails" roleURI="http://thcb.com/role/ProductWarrantyDetails"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_BankBorrowingsDetails" roleURI="http://thcb.com/role/BankBorrowingsDetails"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_BondsPayableDetails" roleURI="http://thcb.com/role/BondsPayableDetails"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_WarrantsDetails" roleURI="http://thcb.com/role/WarrantsDetails"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_FairValueMeasurementDetails" roleURI="http://thcb.com/role/FairValueMeasurementDetails"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_IncomeTaxesDetails" roleURI="http://thcb.com/role/IncomeTaxesDetails"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_NoncontrollingInterestsDetails" roleURI="http://thcb.com/role/NoncontrollingInterestsDetails"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_CommonStockDetails" roleURI="http://thcb.com/role/CommonStockDetails"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_PreferredSharesDetails" roleURI="http://thcb.com/role/PreferredSharesDetails"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_SharebasedpaymentDetails" roleURI="http://thcb.com/role/SharebasedpaymentDetails"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_MainlandChinaContributionPlanDetails" roleURI="http://thcb.com/role/MainlandChinaContributionPlanDetails"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_StatutoryReservesandRestrictedNetAssetsDetails" roleURI="http://thcb.com/role/StatutoryReservesandRestrictedNetAssetsDetails"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_SegmentInformationDetails" roleURI="http://thcb.com/role/SegmentInformationDetails"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_RelatedPartyBalancesandTransactionsDetails" roleURI="http://thcb.com/role/RelatedPartyBalancesandTransactionsDetails"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_CommitmentsandContingenciesDetails" roleURI="http://thcb.com/role/CommitmentsandContingenciesDetails"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#mvst_r_SubsequentEventsDetails" roleURI="http://thcb.com/role/SubsequentEventsDetails"/>
  <roleRef xlink:type="simple" xlink:href="mvst-20211231.xsd#DocumentAndEntityInformation" roleURI="http://thcb.com/role/DocumentAndEntityInformation"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" arcroleURI="http://xbrl.org/int/dim/arcrole/all"/>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ConsolidatedBalanceSheet">
    <loc xlink:type="locator" xlink:label="us-gaap_StatementOfFinancialPositionAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AssetsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfFinancialPositionAbstract" xlink:to="us-gaap_AssetsAbstract" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AssetsCurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsCurrentAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AssetsAbstract" xlink:to="us-gaap_AssetsCurrentAbstract" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AssetsCurrentAbstract" xlink:to="us-gaap_CashAndCashEquivalentsAtCarryingValue" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RestrictedCashCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestrictedCashCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AssetsCurrentAbstract" xlink:to="us-gaap_RestrictedCashCurrent" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AccountsAndOtherReceivablesNetCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsAndOtherReceivablesNetCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AssetsCurrentAbstract" xlink:to="us-gaap_AccountsAndOtherReceivablesNetCurrent" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ReceivablesNetCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ReceivablesNetCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AssetsCurrentAbstract" xlink:to="us-gaap_ReceivablesNetCurrent" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InventoryNet" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryNet"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AssetsCurrentAbstract" xlink:to="us-gaap_InventoryNet" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AssetsCurrentAbstract" xlink:to="us-gaap_PrepaidExpenseAndOtherAssetsCurrent" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AmountDueFromRelatedParties" xlink:href="mvst-20211231.xsd#mvst_AmountDueFromRelatedParties"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AssetsCurrentAbstract" xlink:to="mvst_AmountDueFromRelatedParties" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AssetsCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AssetsCurrentAbstract" xlink:to="us-gaap_AssetsCurrent" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentNet" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AssetsCurrentAbstract" xlink:to="us-gaap_PropertyPlantAndEquipmentNet" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AssetsCurrentAbstract" xlink:to="us-gaap_OperatingLeaseRightOfUseAsset" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AssetsCurrentAbstract" xlink:to="us-gaap_IntangibleAssetsNetExcludingGoodwill" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_OtherAssetsNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AssetsCurrentAbstract" xlink:to="us-gaap_OtherAssetsNoncurrent" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_Assets" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Assets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AssetsAbstract" xlink:to="us-gaap_Assets" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_LiabilitiesCurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfFinancialPositionAbstract" xlink:to="us-gaap_LiabilitiesCurrentAbstract" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AccountsPayableCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsPayableCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_AccountsPayableCurrent" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CustomerAdvancesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CustomerAdvancesCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_CustomerAdvancesCurrent" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AccountsPayableAndOtherAccruedLiabilitiesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsPayableAndOtherAccruedLiabilitiesCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_AccountsPayableAndOtherAccruedLiabilitiesCurrent" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_TaxesPayableCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TaxesPayableCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_TaxesPayableCurrent" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShortTermBorrowings" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShortTermBorrowings"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_ShortTermBorrowings" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NotesPayableCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NotesPayableCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_NotesPayableCurrent" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_BondsPayableCurrent" xlink:href="mvst-20211231.xsd#mvst_BondsPayableCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="mvst_BondsPayableCurrent" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_LiabilitiesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_LiabilitiesCurrent" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SeriesB2ConvertiblePreferredShares" xlink:href="mvst-20211231.xsd#mvst_SeriesB2ConvertiblePreferredShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="mvst_SeriesB2ConvertiblePreferredShares" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_LongtermBondsPayable" xlink:href="mvst-20211231.xsd#mvst_LongtermBondsPayable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="mvst_LongtermBondsPayable" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DerivativeLiabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativeLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_DerivativeLiabilities" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_OtherLiabilitiesNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_OtherLiabilitiesNoncurrent" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_Liabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Liabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfFinancialPositionAbstract" xlink:to="us-gaap_Liabilities" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_TemporaryEquityAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TemporaryEquityAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfFinancialPositionAbstract" xlink:to="us-gaap_TemporaryEquityAbstract" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SeriesC1ConvertibleRedeemablePreferredShares" xlink:href="mvst-20211231.xsd#mvst_SeriesC1ConvertibleRedeemablePreferredShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_TemporaryEquityAbstract" xlink:to="mvst_SeriesC1ConvertibleRedeemablePreferredShares" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SeriesC2ConvertibleRedeemablePreferredShares" xlink:href="mvst-20211231.xsd#mvst_SeriesC2ConvertibleRedeemablePreferredShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_TemporaryEquityAbstract" xlink:to="mvst_SeriesC2ConvertibleRedeemablePreferredShares" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SeriesD1ConvertibleRedeemablePreferredShares" xlink:href="mvst-20211231.xsd#mvst_SeriesD1ConvertibleRedeemablePreferredShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_TemporaryEquityAbstract" xlink:to="mvst_SeriesD1ConvertibleRedeemablePreferredShares" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_TemporaryEquityAbstract" xlink:to="us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_TotalMezzanineEquity" xlink:href="mvst-20211231.xsd#mvst_TotalMezzanineEquity"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_TemporaryEquityAbstract" xlink:to="mvst_TotalMezzanineEquity" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CommitmentsAndContingencies" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommitmentsAndContingencies"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_TemporaryEquityAbstract" xlink:to="us-gaap_CommitmentsAndContingencies" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StockholdersEquityAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquityAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfFinancialPositionAbstract" xlink:to="us-gaap_StockholdersEquityAbstract" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CommonStockValue" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockValue"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StockholdersEquityAbstract" xlink:to="us-gaap_CommonStockValue" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AdditionalPaidInCapital" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdditionalPaidInCapital"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StockholdersEquityAbstract" xlink:to="us-gaap_AdditionalPaidInCapital" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalance" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalance"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StockholdersEquityAbstract" xlink:to="us-gaap_StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalance" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StockholdersEquityAbstract" xlink:to="us-gaap_RetainedEarningsAccumulatedDeficit" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StockholdersEquityAbstract" xlink:to="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfFinancialPositionAbstract" xlink:to="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfFinancialPositionAbstract" xlink:to="us-gaap_LiabilitiesAndStockholdersEquity" order="6" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ConsolidatedBalanceSheet_Parentheticals">
    <loc xlink:type="locator" xlink:label="us-gaap_StatementLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StatementTable" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StatementTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StatementClassOfStockAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementClassOfStockAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="us-gaap_StatementTable" xlink:to="us-gaap_StatementClassOfStockAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SeriesC1ConvertibleRedeemablePreferredSharesMember" xlink:href="mvst-20211231.xsd#mvst_SeriesC1ConvertibleRedeemablePreferredSharesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="mvst_SeriesC1ConvertibleRedeemablePreferredSharesMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SeriesC2ConvertibleRedeemablePreferredShareMember" xlink:href="mvst-20211231.xsd#mvst_SeriesC2ConvertibleRedeemablePreferredShareMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="mvst_SeriesC2ConvertibleRedeemablePreferredShareMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SeriesD1ConvertibleRedeemablePreferredSharesMember" xlink:href="mvst-20211231.xsd#mvst_SeriesD1ConvertibleRedeemablePreferredSharesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="mvst_SeriesD1ConvertibleRedeemablePreferredSharesMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_RedeemablePreferredSharesParValue" xlink:href="mvst-20211231.xsd#mvst_RedeemablePreferredSharesParValue"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="mvst_RedeemablePreferredSharesParValue" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_RedeemablePreferredSharesAuthorized" xlink:href="mvst-20211231.xsd#mvst_RedeemablePreferredSharesAuthorized"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="mvst_RedeemablePreferredSharesAuthorized" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_RedeemablePreferredSharesIssued" xlink:href="mvst-20211231.xsd#mvst_RedeemablePreferredSharesIssued"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="mvst_RedeemablePreferredSharesIssued" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_RedeemablePreferredSharesOutstanding" xlink:href="mvst-20211231.xsd#mvst_RedeemablePreferredSharesOutstanding"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="mvst_RedeemablePreferredSharesOutstanding" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_CommonStockParOrStatedValuePerShare" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CommonStockSharesAuthorized" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_CommonStockSharesAuthorized" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CommonStockSharesIssued" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockSharesIssued"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_CommonStockSharesIssued" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CommonStockSharesOutstanding" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_CommonStockSharesOutstanding" order="9" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ConsolidatedIncomeStatement">
    <loc xlink:type="locator" xlink:label="us-gaap_IncomeStatementAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_Revenues" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Revenues"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_Revenues" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CostOfRevenue" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CostOfRevenue"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_CostOfRevenue" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_GrossProfit" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GrossProfit"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_GrossProfit" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_OperatingExpensesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingExpensesAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_OperatingExpensesAbstract" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_GeneralAndAdministrativeExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OperatingExpensesAbstract" xlink:to="us-gaap_GeneralAndAdministrativeExpense" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ResearchAndDevelopmentExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OperatingExpensesAbstract" xlink:to="us-gaap_ResearchAndDevelopmentExpense" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_SellingAndMarketingExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SellingAndMarketingExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OperatingExpensesAbstract" xlink:to="us-gaap_SellingAndMarketingExpense" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_OperatingExpenses" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingExpenses"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_OperatingExpenses" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SubsidyIncome" xlink:href="mvst-20211231.xsd#mvst_SubsidyIncome"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OperatingExpenses" xlink:to="mvst_SubsidyIncome" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_OperatingIncomeLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingIncomeLoss"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_OperatingIncomeLoss" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_OtherIncomeAndExpensesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherIncomeAndExpensesAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_OtherIncomeAndExpensesAbstract" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_InterestIncome" xlink:href="mvst-20211231.xsd#mvst_InterestIncome"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OtherIncomeAndExpensesAbstract" xlink:to="mvst_InterestIncome" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InterestExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OtherIncomeAndExpensesAbstract" xlink:to="us-gaap_InterestExpense" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_GainlossOnChangesInFairValueOfConvertibleNotes" xlink:href="mvst-20211231.xsd#mvst_GainlossOnChangesInFairValueOfConvertibleNotes"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OtherIncomeAndExpensesAbstract" xlink:to="mvst_GainlossOnChangesInFairValueOfConvertibleNotes" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_GainOnChangeInFairValueOfWarrantLiability" xlink:href="mvst-20211231.xsd#mvst_GainOnChangeInFairValueOfWarrantLiability"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OtherIncomeAndExpensesAbstract" xlink:to="mvst_GainOnChangeInFairValueOfWarrantLiability" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NonoperatingIncomeExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OtherIncomeAndExpensesAbstract" xlink:to="us-gaap_NonoperatingIncomeExpense" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OtherIncomeAndExpensesAbstract" xlink:to="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncomeTaxExpenseBenefit" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OtherIncomeAndExpensesAbstract" xlink:to="us-gaap_IncomeTaxExpenseBenefit" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ProfitLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProfitLoss"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_ProfitLoss" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NetIncomeLossAttributableToNonredeemableNoncontrollingInterest" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLossAttributableToNonredeemableNoncontrollingInterest"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_NetIncomeLossAttributableToNonredeemableNoncontrollingInterest" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_NetLossAttributableToMicrovastHoldingsInc" xlink:href="mvst-20211231.xsd#mvst_NetLossAttributableToMicrovastHoldingsInc"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="mvst_NetLossAttributableToMicrovastHoldingsInc" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_LessAccretionOfSeriesC1Preferred" xlink:href="mvst-20211231.xsd#mvst_LessAccretionOfSeriesC1Preferred"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_NetLossAttributableToMicrovastHoldingsInc" xlink:to="mvst_LessAccretionOfSeriesC1Preferred" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_LessAccretionOfSeriesC2PreferredStock" xlink:href="mvst-20211231.xsd#mvst_LessAccretionOfSeriesC2PreferredStock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_NetLossAttributableToMicrovastHoldingsInc" xlink:to="mvst_LessAccretionOfSeriesC2PreferredStock" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_LessAccretionOfSeriesD1Preferred" xlink:href="mvst-20211231.xsd#mvst_LessAccretionOfSeriesD1Preferred"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_NetLossAttributableToMicrovastHoldingsInc" xlink:to="mvst_LessAccretionOfSeriesD1Preferred" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_LessAccretionForNoncontrollingInterests" xlink:href="mvst-20211231.xsd#mvst_LessAccretionForNoncontrollingInterests"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_NetLossAttributableToMicrovastHoldingsInc" xlink:to="mvst_LessAccretionForNoncontrollingInterests" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_NetLossAttributableToOrdinaryShareholdersOfMicrovastInc" xlink:href="mvst-20211231.xsd#mvst_NetLossAttributableToOrdinaryShareholdersOfMicrovastInc"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="mvst_NetLossAttributableToOrdinaryShareholdersOfMicrovastInc" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_NetLossPerShareAttributableToCommonStockShareholdersOfMicrovastHoldingsIncAbstract" xlink:href="mvst-20211231.xsd#mvst_NetLossPerShareAttributableToCommonStockShareholdersOfMicrovastHoldingsIncAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="mvst_NetLossPerShareAttributableToCommonStockShareholdersOfMicrovastHoldingsIncAbstract" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_EarningsPerShareBasicAndDiluted" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareBasicAndDiluted"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_NetLossPerShareAttributableToCommonStockShareholdersOfMicrovastHoldingsIncAbstract" xlink:to="us-gaap_EarningsPerShareBasicAndDiluted" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_WeightedAverageSharesUsedInCalculatingNetLossPerShareOfCommonStockAbstract" xlink:href="mvst-20211231.xsd#mvst_WeightedAverageSharesUsedInCalculatingNetLossPerShareOfCommonStockAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="mvst_WeightedAverageSharesUsedInCalculatingNetLossPerShareOfCommonStockAbstract" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_WeightedAverageSharesUsedInCalculatingNetLossPerShareOfCommonStockAbstract" xlink:to="us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ConsolidatedComprehensiveIncome">
    <loc xlink:type="locator" xlink:label="us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:to="us-gaap_ComprehensiveIncomeNetOfTax" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ComprehensiveIncomeNetOfTax" xlink:to="us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ComprehensiveIncomeNetOfTax" xlink:to="us-gaap_OtherComprehensiveIncomeLossNetOfTax" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_LessAbstract" xlink:href="mvst-20211231.xsd#mvst_LessAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:to="mvst_LessAbstract" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_LessAbstract" xlink:to="us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_TotalComprehensiveLossAttributableToMicrovastHoldingsInc" xlink:href="mvst-20211231.xsd#mvst_TotalComprehensiveLossAttributableToMicrovastHoldingsInc"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_LessAbstract" xlink:to="mvst_TotalComprehensiveLossAttributableToMicrovastHoldingsInc" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ShareholdersEquityType2or3">
    <loc xlink:type="locator" xlink:label="us-gaap_StatementLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StatementTable" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StatementTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StatementEquityComponentsAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="us-gaap_StatementTable" xlink:to="us-gaap_StatementEquityComponentsAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_EquityComponentDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityComponentDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_StatementEquityComponentsAxis" xlink:to="us-gaap_EquityComponentDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_EquityComponentDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityComponentDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_StatementEquityComponentsAxis" xlink:to="us-gaap_EquityComponentDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CommonStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_EquityComponentDomain" xlink:to="us-gaap_CommonStockMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AdditionalPaidInCapitalMember" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_EquityComponentDomain" xlink:to="us-gaap_AdditionalPaidInCapitalMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RetainedEarningsMember" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RetainedEarningsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_EquityComponentDomain" xlink:to="us-gaap_RetainedEarningsMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_EquityComponentDomain" xlink:to="us-gaap_AccumulatedOtherComprehensiveIncomeMember" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_StatutoryReserveMember" xlink:href="mvst-20211231.xsd#mvst_StatutoryReserveMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_EquityComponentDomain" xlink:to="mvst_StatutoryReserveMember" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ParentMember" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ParentMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_EquityComponentDomain" xlink:to="us-gaap_ParentMember" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NoncontrollingInterestMember" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NoncontrollingInterestMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_EquityComponentDomain" xlink:to="us-gaap_NoncontrollingInterestMember" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StockholdersEquity" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquity"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StockholdersEquity" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_SharesOutstanding" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharesOutstanding"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_SharesOutstanding" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ProfitLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProfitLoss"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_ProfitLoss" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AccretionForSeriesC1Preferred" xlink:href="mvst-20211231.xsd#mvst_AccretionForSeriesC1Preferred"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="mvst_AccretionForSeriesC1Preferred" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AccretionForSeriesC2Preferred" xlink:href="mvst-20211231.xsd#mvst_AccretionForSeriesC2Preferred"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="mvst_AccretionForSeriesC2Preferred" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AccretionForSeriesD1Preferred" xlink:href="mvst-20211231.xsd#mvst_AccretionForSeriesD1Preferred"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="mvst_AccretionForSeriesD1Preferred" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AccretionForRedeemableNoncontrollingInterest" xlink:href="mvst-20211231.xsd#mvst_AccretionForRedeemableNoncontrollingInterest"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="mvst_AccretionForRedeemableNoncontrollingInterest" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AccretionForSeriesA1C1PreferredOne" xlink:href="mvst-20211231.xsd#mvst_AccretionForSeriesA1C1PreferredOne"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="mvst_AccretionForSeriesA1C1PreferredOne" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AccretionForSeriesB1C2PreferredOne" xlink:href="mvst-20211231.xsd#mvst_AccretionForSeriesB1C2PreferredOne"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="mvst_AccretionForSeriesB1C2PreferredOne" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AccretionForSeriesEELD1PreferredOne" xlink:href="mvst-20211231.xsd#mvst_AccretionForSeriesEELD1PreferredOne"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="mvst_AccretionForSeriesEELD1PreferredOne" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AccretionForTheExitingNoncontrollingInterests" xlink:href="mvst-20211231.xsd#mvst_AccretionForTheExitingNoncontrollingInterests"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="mvst_AccretionForTheExitingNoncontrollingInterests" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodValueOther" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueOther"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StockIssuedDuringPeriodValueOther" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodSharesOther" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesOther"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StockIssuedDuringPeriodSharesOther" order="13" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_IssuanceOfCommonStockInConnectionWithVestingOfRestrictedStockUnitsAndStockOptions" xlink:href="mvst-20211231.xsd#mvst_IssuanceOfCommonStockInConnectionWithVestingOfRestrictedStockUnitsAndStockOptions"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="mvst_IssuanceOfCommonStockInConnectionWithVestingOfRestrictedStockUnitsAndStockOptions" order="14" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_IssuanceOfCommonStockInConnectionWithVestingOfRestrictedStockUnitsAndStockOptionsShares" xlink:href="mvst-20211231.xsd#mvst_IssuanceOfCommonStockInConnectionWithVestingOfRestrictedStockUnitsAndStockOptionsShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="mvst_IssuanceOfCommonStockInConnectionWithVestingOfRestrictedStockUnitsAndStockOptionsShares" order="15" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" order="16" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_TemporaryEquityForeignCurrencyTranslationAdjustments" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TemporaryEquityForeignCurrencyTranslationAdjustments"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_TemporaryEquityForeignCurrencyTranslationAdjustments" order="17" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_CumulativeEffectAdjustmentRelatedToOpeningRetainedEarningsForAdoptionOfASC606" xlink:href="mvst-20211231.xsd#mvst_CumulativeEffectAdjustmentRelatedToOpeningRetainedEarningsForAdoptionOfASC606"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="mvst_CumulativeEffectAdjustmentRelatedToOpeningRetainedEarningsForAdoptionOfASC606" order="18" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_FairValueChangeOfPreferredSharesDueToExtinguishment" xlink:href="mvst-20211231.xsd#mvst_FairValueChangeOfPreferredSharesDueToExtinguishment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="mvst_FairValueChangeOfPreferredSharesDueToExtinguishment" order="19" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_FairValueChangeOfRedeemableNoncontrollingInterestsDueToExtinguishment" xlink:href="mvst-20211231.xsd#mvst_FairValueChangeOfRedeemableNoncontrollingInterestsDueToExtinguishment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="mvst_FairValueChangeOfRedeemableNoncontrollingInterestsDueToExtinguishment" order="20" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AccretionOfRedeemableNoncontrollingsInterests" xlink:href="mvst-20211231.xsd#mvst_AccretionOfRedeemableNoncontrollingsInterests"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="mvst_AccretionOfRedeemableNoncontrollingsInterests" order="21" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NoncontrollingInterestIncreaseFromBusinessCombination" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NoncontrollingInterestIncreaseFromBusinessCombination"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_NoncontrollingInterestIncreaseFromBusinessCombination" order="22" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ConsolidatedCashFlow">
    <loc xlink:type="locator" xlink:label="us-gaap_StatementOfCashFlowsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ProfitLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProfitLoss"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_ProfitLoss" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_GainlossOnDisposalOfPropertyPlantAndEquipment" xlink:href="mvst-20211231.xsd#mvst_GainlossOnDisposalOfPropertyPlantAndEquipment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="mvst_GainlossOnDisposalOfPropertyPlantAndEquipment" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DepreciationNonproduction" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DepreciationNonproduction"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_DepreciationNonproduction" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AmortizationOfLandUseRightsAndIntangibleAssets" xlink:href="mvst-20211231.xsd#mvst_AmortizationOfLandUseRightsAndIntangibleAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="mvst_AmortizationOfLandUseRightsAndIntangibleAssets" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensation" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensation"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_ShareBasedCompensation" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FairValueAdjustmentOfWarrants" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueAdjustmentOfWarrants"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_FairValueAdjustmentOfWarrants" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ChangesInFairValueOfBridgeNotes" xlink:href="mvst-20211231.xsd#mvst_ChangesInFairValueOfBridgeNotes"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="mvst_ChangesInFairValueOfBridgeNotes" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ProvisionForDoubtfulAccounts" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_ProvisionForDoubtfulAccounts" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ProvisionForObsoleteInventories" xlink:href="mvst-20211231.xsd#mvst_ProvisionForObsoleteInventories"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="mvst_ProvisionForObsoleteInventories" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ImpairmentLossFromPropertyPlantAndEquipments" xlink:href="mvst-20211231.xsd#mvst_ImpairmentLossFromPropertyPlantAndEquipments"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="mvst_ImpairmentLossFromPropertyPlantAndEquipments" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ProductWarrantyExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProductWarrantyExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_ProductWarrantyExpense" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInNotesReceivables" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInNotesReceivables"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="us-gaap_IncreaseDecreaseInNotesReceivables" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="us-gaap_IncreaseDecreaseInAccountsReceivable" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInInventories" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="us-gaap_IncreaseDecreaseInInventories" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInDueToOtherRelatedParties" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInDueToOtherRelatedParties"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="us-gaap_IncreaseDecreaseInDueToOtherRelatedParties" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInOtherNoncurrentAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="us-gaap_IncreaseDecreaseInOtherNoncurrentAssets" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_IncreaseDecreaseInNotesPayable" xlink:href="mvst-20211231.xsd#mvst_IncreaseDecreaseInNotesPayable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="mvst_IncreaseDecreaseInNotesPayable" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInContractWithCustomerLiability" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="us-gaap_IncreaseDecreaseInContractWithCustomerLiability" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PaymentsToAcquireInvestments" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsToAcquireInvestments"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="us-gaap_PaymentsToAcquireInvestments" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivities" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ProceedsFromBorrowings" xlink:href="mvst-20211231.xsd#mvst_ProceedsFromBorrowings"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="mvst_ProceedsFromBorrowings" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RepaymentsOfOtherDebt" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RepaymentsOfOtherDebt"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="us-gaap_RepaymentsOfOtherDebt" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RepaymentsOfBankDebt" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RepaymentsOfBankDebt"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="us-gaap_RepaymentsOfBankDebt" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ProceedsFromRelatedPartyDebt" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromRelatedPartyDebt"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="us-gaap_ProceedsFromRelatedPartyDebt" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RepaymentsOfRelatedPartyDebt" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RepaymentsOfRelatedPartyDebt"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="us-gaap_RepaymentsOfRelatedPartyDebt" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_CashReceivedFromTheTrustAccountUponMergerNetOfTransactionCostsNote3" xlink:href="mvst-20211231.xsd#mvst_CashReceivedFromTheTrustAccountUponMergerNetOfTransactionCostsNote3"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="mvst_CashReceivedFromTheTrustAccountUponMergerNetOfTransactionCostsNote3" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_CashReceivedFromPrivateInvestmentInPublicEquityPIPEInvestorsUponMerger" xlink:href="mvst-20211231.xsd#mvst_CashReceivedFromPrivateInvestmentInPublicEquityPIPEInvestorsUponMerger"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="mvst_CashReceivedFromPrivateInvestmentInPublicEquityPIPEInvestorsUponMerger" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ProceedsFromPaymentsToMinorityShareholders" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromPaymentsToMinorityShareholders"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="us-gaap_ProceedsFromPaymentsToMinorityShareholders" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_IssuanceOfBridgeNotes" xlink:href="mvst-20211231.xsd#mvst_IssuanceOfBridgeNotes"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="mvst_IssuanceOfBridgeNotes" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivities" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_CashAndCashEquivalents" xlink:href="mvst-20211231.xsd#mvst_CashAndCashEquivalents"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="mvst_CashAndCashEquivalents" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_RestrictedAtCash" xlink:href="mvst-20211231.xsd#mvst_RestrictedAtCash"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="mvst_RestrictedAtCash" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_TotalCashCashEquivalentsAndRestrictedCash" xlink:href="mvst-20211231.xsd#mvst_TotalCashCashEquivalentsAndRestrictedCash"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="mvst_TotalCashCashEquivalentsAndRestrictedCash" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_SupplementalCashFlowInformationAbstract" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InterestPaidNet" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestPaidNet"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SupplementalCashFlowInformationAbstract" xlink:to="us-gaap_InterestPaidNet" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncomeTaxesPaid" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxesPaid"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SupplementalCashFlowInformationAbstract" xlink:to="us-gaap_IncomeTaxesPaid" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NoncashInvestingAndFinancingItemsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NoncashInvestingAndFinancingItemsAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_NoncashInvestingAndFinancingItemsAbstract" order="13" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_PayableForRedemptionOfNoncontrollingInterest" xlink:href="mvst-20211231.xsd#mvst_PayableForRedemptionOfNoncontrollingInterest"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NoncashInvestingAndFinancingItemsAbstract" xlink:to="mvst_PayableForRedemptionOfNoncontrollingInterest" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_PayableForPurchaseOfPropertyPlantAndEquipment" xlink:href="mvst-20211231.xsd#mvst_PayableForPurchaseOfPropertyPlantAndEquipment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NoncashInvestingAndFinancingItemsAbstract" xlink:to="mvst_PayableForPurchaseOfPropertyPlantAndEquipment" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/DescriptionofOrganizationandBusinessOperations">
    <loc xlink:type="locator" xlink:label="us-gaap_AccountingPoliciesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NatureOfOperations" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NatureOfOperations"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_NatureOfOperations" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/SignificantAccountingPolicies">
    <loc xlink:type="locator" xlink:label="us-gaap_AccountingPoliciesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SignificantAccountingPoliciesTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_SignificantAccountingPoliciesTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ReverseRecapitalization">
    <loc xlink:type="locator" xlink:label="mvst_ReverseRecapitalizationAbstract" xlink:href="mvst-20211231.xsd#mvst_ReverseRecapitalizationAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_ReverseRecapitalizationTextBlock" xlink:href="mvst-20211231.xsd#mvst_ReverseRecapitalizationTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ReverseRecapitalizationAbstract" xlink:to="mvst_ReverseRecapitalizationTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/AccountsReceivable">
    <loc xlink:type="locator" xlink:label="us-gaap_ReceivablesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ReceivablesAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ReceivablesAbstract" xlink:to="us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/InventoriesNet">
    <loc xlink:type="locator" xlink:label="us-gaap_InventoryDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryDisclosureAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InventoryDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryDisclosureTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_InventoryDisclosureAbstract" xlink:to="us-gaap_InventoryDisclosureTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/PrepaidExpensesandOtherCurrentAssets">
    <loc xlink:type="locator" xlink:label="mvst_PrepaidExpensesAndOtherCurrentAssetsAbstract" xlink:href="mvst-20211231.xsd#mvst_PrepaidExpensesAndOtherCurrentAssetsAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_PrepaidExpensesAndOtherCurrentAssetsTextBlock" xlink:href="mvst-20211231.xsd#mvst_PrepaidExpensesAndOtherCurrentAssetsTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_PrepaidExpensesAndOtherCurrentAssetsAbstract" xlink:to="mvst_PrepaidExpensesAndOtherCurrentAssetsTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/PropertyPlantandEquipmentNet">
    <loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentAbstract" xlink:to="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/LandUseRightsNet">
    <loc xlink:type="locator" xlink:label="mvst_LandUseRightsNetAbstract" xlink:href="mvst-20211231.xsd#mvst_LandUseRightsNetAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_LandUseRightsNetTextBlock" xlink:href="mvst-20211231.xsd#mvst_LandUseRightsNetTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_LandUseRightsNetAbstract" xlink:to="mvst_LandUseRightsNetTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/AcquiredIntangibleAssetsNet">
    <loc xlink:type="locator" xlink:label="us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IntangibleAssetsDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IntangibleAssetsDisclosureTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:to="us-gaap_IntangibleAssetsDisclosureTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/AccruedExpensesandOtherCurrentLiabilities">
    <loc xlink:type="locator" xlink:label="us-gaap_AccruedLiabilitiesAndOtherLiabilitiesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccruedLiabilitiesAndOtherLiabilitiesAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccruedLiabilitiesAndOtherLiabilitiesAbstract" xlink:to="us-gaap_AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ProductWarranty">
    <loc xlink:type="locator" xlink:label="us-gaap_ProductWarrantiesDisclosuresAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProductWarrantiesDisclosuresAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ProductWarrantyDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProductWarrantyDisclosureTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ProductWarrantiesDisclosuresAbstract" xlink:to="us-gaap_ProductWarrantyDisclosureTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/BankBorrowings">
    <loc xlink:type="locator" xlink:label="mvst_BankBorrowingsAbstract" xlink:href="mvst-20211231.xsd#mvst_BankBorrowingsAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_BankBorrowingsTextBlock" xlink:href="mvst-20211231.xsd#mvst_BankBorrowingsTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BankBorrowingsAbstract" xlink:to="mvst_BankBorrowingsTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/OtherNonCurrentLiabilities">
    <loc xlink:type="locator" xlink:label="us-gaap_OtherLiabilitiesNoncurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrentAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_OtherLiabilitiesDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherLiabilitiesDisclosureTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OtherLiabilitiesNoncurrentAbstract" xlink:to="us-gaap_OtherLiabilitiesDisclosureTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/BondsPayable">
    <loc xlink:type="locator" xlink:label="mvst_BondsPayableAbstract" xlink:href="mvst-20211231.xsd#mvst_BondsPayableAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_BondsPayableTextBlock" xlink:href="mvst-20211231.xsd#mvst_BondsPayableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BondsPayableAbstract" xlink:to="mvst_BondsPayableTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/Warrants">
    <loc xlink:type="locator" xlink:label="mvst_WarrantsAbstract" xlink:href="mvst-20211231.xsd#mvst_WarrantsAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_WarrantsTextBlock" xlink:href="mvst-20211231.xsd#mvst_WarrantsTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_WarrantsAbstract" xlink:to="mvst_WarrantsTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/FairValueMeasurement">
    <loc xlink:type="locator" xlink:label="us-gaap_FairValueDisclosuresAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FairValueDisclosuresTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueDisclosuresTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_FairValueDisclosuresAbstract" xlink:to="us-gaap_FairValueDisclosuresTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/IncomeTaxes">
    <loc xlink:type="locator" xlink:label="us-gaap_IncomeTaxDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncomeTaxDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxDisclosureTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeTaxDisclosureAbstract" xlink:to="us-gaap_IncomeTaxDisclosureTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/NoncontrollingInterests">
    <loc xlink:type="locator" xlink:label="us-gaap_NoncontrollingInterestAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NoncontrollingInterestAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_MinorityInterestDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MinorityInterestDisclosureTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NoncontrollingInterestAbstract" xlink:to="us-gaap_MinorityInterestDisclosureTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/CommonStock">
    <loc xlink:type="locator" xlink:label="mvst_CommonStockAbstract" xlink:href="mvst-20211231.xsd#mvst_CommonStockAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_CommonStockTextBlock" xlink:href="mvst-20211231.xsd#mvst_CommonStockTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_CommonStockAbstract" xlink:to="mvst_CommonStockTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/PreferredShares">
    <loc xlink:type="locator" xlink:label="mvst_PreferredSharesLineItems" xlink:href="mvst-20211231.xsd#mvst_PreferredSharesLineItems"/>
    <loc xlink:type="locator" xlink:label="mvst_PreferredSharesTable" xlink:href="mvst-20211231.xsd#mvst_PreferredSharesTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="mvst_PreferredSharesLineItems" xlink:to="mvst_PreferredSharesTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PreferredStockTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_PreferredSharesLineItems" xlink:to="us-gaap_PreferredStockTextBlock" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/Sharebasedpayment">
    <loc xlink:type="locator" xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:to="us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/MainlandChinaContributionPlan">
    <loc xlink:type="locator" xlink:label="us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DefinedContributionPlanTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DefinedContributionPlanTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:to="us-gaap_DefinedContributionPlanTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/StatutoryReservesandRestrictedNetAssets">
    <loc xlink:type="locator" xlink:label="us-gaap_DisclosureTextBlockSupplementAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisclosureTextBlockSupplementAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RestrictedAssetsDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestrictedAssetsDisclosureTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_DisclosureTextBlockSupplementAbstract" xlink:to="us-gaap_RestrictedAssetsDisclosureTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/SegmentInformation">
    <loc xlink:type="locator" xlink:label="us-gaap_SegmentReportingAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentReportingAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_SegmentReportingDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentReportingDisclosureTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SegmentReportingAbstract" xlink:to="us-gaap_SegmentReportingDisclosureTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/RelatedPartyBalancesandTransactions">
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsDisclosureTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionsAbstract" xlink:to="us-gaap_RelatedPartyTransactionsDisclosureTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/NetLossPerShare">
    <loc xlink:type="locator" xlink:label="us-gaap_EarningsPerShareAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_EarningsPerShareTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_EarningsPerShareAbstract" xlink:to="us-gaap_EarningsPerShareTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/CommitmentsandContingencies">
    <loc xlink:type="locator" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:to="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/SubsequentEvents">
    <loc xlink:type="locator" xlink:label="us-gaap_SubsequentEventsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventsAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_SubsequentEventsTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventsTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SubsequentEventsAbstract" xlink:to="us-gaap_SubsequentEventsTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleICondensedFinancialInformationofParentCompany">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleICondensedFinancialInformationofParentCompanyLineItems" xlink:href="mvst-20211231.xsd#mvst_ScheduleICondensedFinancialInformationofParentCompanyLineItems"/>
    <loc xlink:type="locator" xlink:label="mvst_ScheduleICondensedFinancialInformationofParentCompanyTable" xlink:href="mvst-20211231.xsd#mvst_ScheduleICondensedFinancialInformationofParentCompanyTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="mvst_ScheduleICondensedFinancialInformationofParentCompanyLineItems" xlink:to="mvst_ScheduleICondensedFinancialInformationofParentCompanyTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesAxis" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidatedEntitiesAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_ScheduleICondensedFinancialInformationofParentCompanyTable" xlink:to="srt_ConsolidatedEntitiesAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesDomain" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidatedEntitiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_ConsolidatedEntitiesAxis" xlink:to="srt_ConsolidatedEntitiesDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesDomain_0" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidatedEntitiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_ConsolidatedEntitiesAxis" xlink:to="srt_ConsolidatedEntitiesDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ParentCompanyMember" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ParentCompanyMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_ConsolidatedEntitiesDomain" xlink:to="srt_ParentCompanyMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleICondensedFinancialInformationofParentCompanyLineItems" xlink:to="us-gaap_CondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/BasisforPreparation">
    <loc xlink:type="locator" xlink:label="mvst_BasisforPreparationLineItems" xlink:href="mvst-20211231.xsd#mvst_BasisforPreparationLineItems"/>
    <loc xlink:type="locator" xlink:label="mvst_BasisforPreparationTable" xlink:href="mvst-20211231.xsd#mvst_BasisforPreparationTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="mvst_BasisforPreparationLineItems" xlink:to="mvst_BasisforPreparationTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesAxis" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidatedEntitiesAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_BasisforPreparationTable" xlink:to="srt_ConsolidatedEntitiesAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesDomain" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidatedEntitiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_ConsolidatedEntitiesAxis" xlink:to="srt_ConsolidatedEntitiesDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesDomain_0" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidatedEntitiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_ConsolidatedEntitiesAxis" xlink:to="srt_ConsolidatedEntitiesDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ParentCompanyMember" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ParentCompanyMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_ConsolidatedEntitiesDomain" xlink:to="srt_ParentCompanyMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BasisforPreparationLineItems" xlink:to="us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/InvestmentsinSubsidiaries">
    <loc xlink:type="locator" xlink:label="mvst_InvestmentsinSubsidiariesLineItems" xlink:href="mvst-20211231.xsd#mvst_InvestmentsinSubsidiariesLineItems"/>
    <loc xlink:type="locator" xlink:label="mvst_InvestmentsinSubsidiariesTable" xlink:href="mvst-20211231.xsd#mvst_InvestmentsinSubsidiariesTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="mvst_InvestmentsinSubsidiariesLineItems" xlink:to="mvst_InvestmentsinSubsidiariesTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesAxis" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidatedEntitiesAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_InvestmentsinSubsidiariesTable" xlink:to="srt_ConsolidatedEntitiesAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesDomain" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidatedEntitiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_ConsolidatedEntitiesAxis" xlink:to="srt_ConsolidatedEntitiesDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesDomain_0" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidatedEntitiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_ConsolidatedEntitiesAxis" xlink:to="srt_ConsolidatedEntitiesDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ParentCompanyMember" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ParentCompanyMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_ConsolidatedEntitiesDomain" xlink:to="srt_ParentCompanyMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InvestmentsInAndAdvancesToAffiliatesScheduleOfInvestmentsTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InvestmentsInAndAdvancesToAffiliatesScheduleOfInvestmentsTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_InvestmentsinSubsidiariesLineItems" xlink:to="us-gaap_InvestmentsInAndAdvancesToAffiliatesScheduleOfInvestmentsTextBlock" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/AccountingPoliciesByPolicy">
    <loc xlink:type="locator" xlink:label="us-gaap_AccountingPoliciesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BasisOfAccountingPolicyPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_BasisOfAccountingPolicyPolicyTextBlock" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ConsolidationPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConsolidationPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_ConsolidationPolicyTextBlock" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_NoncontrollingInterestsAndRedeemableNoncontrollingInterestsPolicyTextBlock" xlink:href="mvst-20211231.xsd#mvst_NoncontrollingInterestsAndRedeemableNoncontrollingInterestsPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="mvst_NoncontrollingInterestsAndRedeemableNoncontrollingInterestsPolicyTextBlock" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_UseOfEstimates" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_UseOfEstimates"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_UseOfEstimates" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_EmergingGrowthCompanyPolicyTextBlock" xlink:href="mvst-20211231.xsd#mvst_EmergingGrowthCompanyPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="mvst_EmergingGrowthCompanyPolicyTextBlock" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CashAndCashEquivalentsPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashAndCashEquivalentsPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_CashAndCashEquivalentsPolicyTextBlock" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_RestrictedCashPolicyTextBlock" xlink:href="mvst-20211231.xsd#mvst_RestrictedCashPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="mvst_RestrictedCashPolicyTextBlock" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_TradeAndOtherAccountsReceivablePolicy" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TradeAndOtherAccountsReceivablePolicy"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_TradeAndOtherAccountsReceivablePolicy" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ReceivablesPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ReceivablesPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_ReceivablesPolicyTextBlock" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InvestmentPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InvestmentPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_InvestmentPolicyTextBlock" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InventoryPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_InventoryPolicyTextBlock" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_PrepaidExpensesAndOotherCurrentAssetsPolicyTextBlock" xlink:href="mvst-20211231.xsd#mvst_PrepaidExpensesAndOotherCurrentAssetsPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="mvst_PrepaidExpensesAndOotherCurrentAssetsPolicyTextBlock" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_LandUseRightsNetPolicyTextBlock" xlink:href="mvst-20211231.xsd#mvst_LandUseRightsNetPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="mvst_LandUseRightsNetPolicyTextBlock" order="13" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock" order="14" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock" order="15" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FairValueMeasurementPolicyPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueMeasurementPolicyPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_FairValueMeasurementPolicyPolicyTextBlock" order="16" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FairValueOfFinancialInstrumentsPolicy" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueOfFinancialInstrumentsPolicy"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_FairValueOfFinancialInstrumentsPolicy" order="17" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RevenueRecognitionPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueRecognitionPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_RevenueRecognitionPolicyTextBlock" order="18" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ValueAddedTaxesPolicyTextBlock" xlink:href="mvst-20211231.xsd#mvst_ValueAddedTaxesPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="mvst_ValueAddedTaxesPolicyTextBlock" order="19" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_CostOfRevenuesPolicyTextBlock" xlink:href="mvst-20211231.xsd#mvst_CostOfRevenuesPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="mvst_CostOfRevenuesPolicyTextBlock" order="20" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ExtendedProductWarrantyPolicy" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ExtendedProductWarrantyPolicy"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_ExtendedProductWarrantyPolicy" order="21" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ResearchAndDevelopmentExpensePolicy" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ResearchAndDevelopmentExpensePolicy"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_ResearchAndDevelopmentExpensePolicy" order="22" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SubsidyIncomePolicyTextBlock" xlink:href="mvst-20211231.xsd#mvst_SubsidyIncomePolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="mvst_SubsidyIncomePolicyTextBlock" order="23" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncomeTaxPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_IncomeTaxPolicyTextBlock" order="24" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" order="25" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DerivativesPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativesPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_DerivativesPolicyTextBlock" order="26" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ComprehensiveIncomePolicyPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ComprehensiveIncomePolicyPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_ComprehensiveIncomePolicyPolicyTextBlock" order="27" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_EarningsPerSharePolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerSharePolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_EarningsPerSharePolicyTextBlock" order="28" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock" order="29" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ForeignCurrencyRiskPolicyTextBlock" xlink:href="mvst-20211231.xsd#mvst_ForeignCurrencyRiskPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="mvst_ForeignCurrencyRiskPolicyTextBlock" order="30" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ConcentrationRiskCreditRisk" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskCreditRisk"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_ConcentrationRiskCreditRisk" order="31" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SupplierConcentrationPolicyTextBlock" xlink:href="mvst-20211231.xsd#mvst_SupplierConcentrationPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="mvst_SupplierConcentrationPolicyTextBlock" order="32" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" order="33" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_RecentAccountingPronouncementsNotYetAdoptedPolicyTextBlock" xlink:href="mvst-20211231.xsd#mvst_RecentAccountingPronouncementsNotYetAdoptedPolicyTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="mvst_RecentAccountingPronouncementsNotYetAdoptedPolicyTextBlock" order="34" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/DescriptionofOrganizationandBusinessOperationsTables">
    <loc xlink:type="locator" xlink:label="us-gaap_AccountingPoliciesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfSubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipDescriptionTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfSubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipDescriptionTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_ScheduleOfSubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipDescriptionTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/SignificantAccountingPoliciesTables">
    <loc xlink:type="locator" xlink:label="us-gaap_AccountingPoliciesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfPublicUtilityPropertyPlantAndEquipmentTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfPublicUtilityPropertyPlantAndEquipmentTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_ScheduleOfPublicUtilityPropertyPlantAndEquipmentTextBlock" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfRevenueFromExternalCustomersAttributedToForeignCountriesByGeographicAreaTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfRevenueFromExternalCustomersAttributedToForeignCountriesByGeographicAreaTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_ScheduleOfRevenueFromExternalCustomersAttributedToForeignCountriesByGeographicAreaTextBlock" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ReverseRecapitalizationTables">
    <loc xlink:type="locator" xlink:label="mvst_ReverseRecapitalizationAbstract" xlink:href="mvst-20211231.xsd#mvst_ReverseRecapitalizationAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfBusinessCombinationTheOwnershipInterestsOfTheCompanysStockholdersTableTextBlock" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfBusinessCombinationTheOwnershipInterestsOfTheCompanysStockholdersTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ReverseRecapitalizationAbstract" xlink:to="mvst_ScheduleOfBusinessCombinationTheOwnershipInterestsOfTheCompanysStockholdersTableTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/AccountsReceivableTables">
    <loc xlink:type="locator" xlink:label="us-gaap_ReceivablesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ReceivablesAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfAccountsReceivableTableTextBlock" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfAccountsReceivableTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ReceivablesAbstract" xlink:to="mvst_ScheduleOfAccountsReceivableTableTextBlock" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfAllowanceForDoubtfulAccountsTableTextBlock" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfAllowanceForDoubtfulAccountsTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ReceivablesAbstract" xlink:to="mvst_ScheduleOfAllowanceForDoubtfulAccountsTableTextBlock" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/InventoriesNetTables">
    <loc xlink:type="locator" xlink:label="us-gaap_InventoryDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryDisclosureAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfInventoryCurrentTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfInventoryCurrentTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_InventoryDisclosureAbstract" xlink:to="us-gaap_ScheduleOfInventoryCurrentTableTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/PrepaidExpensesandOtherCurrentAssetsTables">
    <loc xlink:type="locator" xlink:label="mvst_PrepaidExpensesAndOtherCurrentAssetsAbstract" xlink:href="mvst-20211231.xsd#mvst_PrepaidExpensesAndOtherCurrentAssetsAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_PrepaidExpensesAndOtherCurrentAssetsAbstract" xlink:to="us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/PropertyPlantandEquipmentNetTables">
    <loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentAbstract" xlink:to="us-gaap_PropertyPlantAndEquipmentTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/LandUseRightsNetTables">
    <loc xlink:type="locator" xlink:label="mvst_LandUseRightsNetAbstract" xlink:href="mvst-20211231.xsd#mvst_LandUseRightsNetAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfLandUseRightsTableTextBlock" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfLandUseRightsTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_LandUseRightsNetAbstract" xlink:to="mvst_ScheduleOfLandUseRightsTableTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/AcquiredIntangibleAssetsNetTables">
    <loc xlink:type="locator" xlink:label="us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:to="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:to="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseTableTextBlock" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/AccruedExpensesandOtherCurrentLiabilitiesTables">
    <loc xlink:type="locator" xlink:label="us-gaap_AccruedLiabilitiesAndOtherLiabilitiesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccruedLiabilitiesAndOtherLiabilitiesAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_AccruedExpensesAndOtherCurrentLiabilitiesTableTextBlock" xlink:href="mvst-20211231.xsd#mvst_AccruedExpensesAndOtherCurrentLiabilitiesTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccruedLiabilitiesAndOtherLiabilitiesAbstract" xlink:to="mvst_AccruedExpensesAndOtherCurrentLiabilitiesTableTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ProductWarrantyTables">
    <loc xlink:type="locator" xlink:label="us-gaap_ProductWarrantiesDisclosuresAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProductWarrantiesDisclosuresAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfProductInformationTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfProductInformationTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ProductWarrantiesDisclosuresAbstract" xlink:to="us-gaap_ScheduleOfProductInformationTableTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/BankBorrowingsTables">
    <loc xlink:type="locator" xlink:label="mvst_BankBorrowingsAbstract" xlink:href="mvst-20211231.xsd#mvst_BankBorrowingsAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfBankBorrowingsTableTextBlock" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfBankBorrowingsTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BankBorrowingsAbstract" xlink:to="mvst_ScheduleOfBankBorrowingsTableTextBlock" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfBankingFacilitiesAndAggregateCarryingAmount" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfBankingFacilitiesAndAggregateCarryingAmount"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BankBorrowingsAbstract" xlink:to="mvst_ScheduleOfBankingFacilitiesAndAggregateCarryingAmount" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/OtherNonCurrentLiabilitiesTables">
    <loc xlink:type="locator" xlink:label="us-gaap_OtherLiabilitiesNoncurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrentAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfOtherNonCurrentLiabilities" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfOtherNonCurrentLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OtherLiabilitiesNoncurrentAbstract" xlink:to="mvst_ScheduleOfOtherNonCurrentLiabilities" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/BondsPayableTables">
    <loc xlink:type="locator" xlink:label="mvst_BondsPayableAbstract" xlink:href="mvst-20211231.xsd#mvst_BondsPayableAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfBondsPayableTableTextBlock" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfBondsPayableTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BondsPayableAbstract" xlink:to="mvst_ScheduleOfBondsPayableTableTextBlock" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfRepaymentsAndInterestsTableTextBlock" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfRepaymentsAndInterestsTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BondsPayableAbstract" xlink:to="mvst_ScheduleOfRepaymentsAndInterestsTableTextBlock" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/WarrantsTables">
    <loc xlink:type="locator" xlink:label="mvst_WarrantsAbstract" xlink:href="mvst-20211231.xsd#mvst_WarrantsAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfOptimalExerciseOfTheCompanysRedemptionOptionAtTheEarliestPossibleDateTableTextBlock" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfOptimalExerciseOfTheCompanysRedemptionOptionAtTheEarliestPossibleDateTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_WarrantsAbstract" xlink:to="mvst_ScheduleOfOptimalExerciseOfTheCompanysRedemptionOptionAtTheEarliestPossibleDateTableTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/FairValueMeasurementTables">
    <loc xlink:type="locator" xlink:label="us-gaap_FairValueDisclosuresAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_FairValueDisclosuresAbstract" xlink:to="us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_FairValueDisclosuresAbstract" xlink:to="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_FairValueDisclosuresAbstract" xlink:to="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/IncomeTaxesTables">
    <loc xlink:type="locator" xlink:label="us-gaap_IncomeTaxDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeTaxDisclosureAbstract" xlink:to="us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeTaxDisclosureAbstract" xlink:to="us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeTaxDisclosureAbstract" xlink:to="us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_SummaryOfValuationAllowanceTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SummaryOfValuationAllowanceTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeTaxDisclosureAbstract" xlink:to="us-gaap_SummaryOfValuationAllowanceTextBlock" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeTaxDisclosureAbstract" xlink:to="us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" order="4" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/PreferredSharesTables">
    <loc xlink:type="locator" xlink:label="mvst_PreferredSharesTablesLineItems" xlink:href="mvst-20211231.xsd#mvst_PreferredSharesTablesLineItems"/>
    <loc xlink:type="locator" xlink:label="mvst_PreferredSharesTablesTable" xlink:href="mvst-20211231.xsd#mvst_PreferredSharesTablesTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="mvst_PreferredSharesTablesLineItems" xlink:to="mvst_PreferredSharesTablesTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfPreferredUnitsTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfPreferredUnitsTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_PreferredSharesTablesLineItems" xlink:to="us-gaap_ScheduleOfPreferredUnitsTextBlock" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RedeemableNoncontrollingInterestTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RedeemableNoncontrollingInterestTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_PreferredSharesTablesLineItems" xlink:to="us-gaap_RedeemableNoncontrollingInterestTableTextBlock" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/SharebasedpaymentTables">
    <loc xlink:type="locator" xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:to="us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:to="us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfNonvestedShareActivityTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfNonvestedShareActivityTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:to="us-gaap_ScheduleOfNonvestedShareActivityTableTextBlock" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:to="us-gaap_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock" order="3" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/SegmentInformationTables">
    <loc xlink:type="locator" xlink:label="us-gaap_SegmentReportingAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentReportingAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_LongLivedAssetsByGeographicAreasTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongLivedAssetsByGeographicAreasTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SegmentReportingAbstract" xlink:to="us-gaap_LongLivedAssetsByGeographicAreasTableTextBlock" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DisaggregationOfRevenueTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisaggregationOfRevenueTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SegmentReportingAbstract" xlink:to="us-gaap_DisaggregationOfRevenueTableTextBlock" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/RelatedPartyBalancesandTransactionsTables">
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfRelationshipTableTextBlock" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfRelationshipTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionsAbstract" xlink:to="mvst_ScheduleOfRelationshipTableTextBlock" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionsAbstract" xlink:to="us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/NetLossPerShareTables">
    <loc xlink:type="locator" xlink:label="us-gaap_EarningsPerShareAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_EarningsPerShareAbstract" xlink:to="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValueTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValueTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_EarningsPerShareAbstract" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValueTableTextBlock" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/CommitmentsandContingenciesTables">
    <loc xlink:type="locator" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfFutureMinimumLeasePaymentsForCapitalLeasesTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfFutureMinimumLeasePaymentsForCapitalLeasesTableTextBlock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:to="us-gaap_ScheduleOfFutureMinimumLeasePaymentsForCapitalLeasesTableTextBlock" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofcompanysmajorsubsidiariesTable">
    <loc xlink:type="locator" xlink:label="us-gaap_SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipLineItems"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfSubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipTable" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfSubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="us-gaap_SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipLineItems" xlink:to="us-gaap_ScheduleOfSubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="us-gaap_ScheduleOfSubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipTable" xlink:to="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="us-gaap_RelatedPartyDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="us-gaap_RelatedPartyDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_MicrovastIncMicrovastMember" xlink:href="mvst-20211231.xsd#mvst_MicrovastIncMicrovastMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyDomain" xlink:to="mvst_MicrovastIncMicrovastMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_MicrovastPowerSolutionsIncMPSolutionsMember" xlink:href="mvst-20211231.xsd#mvst_MicrovastPowerSolutionsIncMPSolutionsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyDomain" xlink:to="mvst_MicrovastPowerSolutionsIncMPSolutionsMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_MicrovastPowerSystemsCoLtdMPSMember" xlink:href="mvst-20211231.xsd#mvst_MicrovastPowerSystemsCoLtdMPSMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyDomain" xlink:to="mvst_MicrovastPowerSystemsCoLtdMPSMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_MicrovastPowerSystemsUKLimitedMPUKMember" xlink:href="mvst-20211231.xsd#mvst_MicrovastPowerSystemsUKLimitedMPUKMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyDomain" xlink:to="mvst_MicrovastPowerSystemsUKLimitedMPUKMember" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_MicrovastGmbHMVGmbHMember" xlink:href="mvst-20211231.xsd#mvst_MicrovastGmbHMVGmbHMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyDomain" xlink:to="mvst_MicrovastGmbHMVGmbHMember" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_HuzhouMicrovastElectricVehicleSalesServiceLtdMVEVehicleMember" xlink:href="mvst-20211231.xsd#mvst_HuzhouMicrovastElectricVehicleSalesServiceLtdMVEVehicleMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyDomain" xlink:to="mvst_HuzhouMicrovastElectricVehicleSalesServiceLtdMVEVehicleMember" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_HuzhouHongweiNewEnergyAutomobileCoLtdHongweiMember" xlink:href="mvst-20211231.xsd#mvst_HuzhouHongweiNewEnergyAutomobileCoLtdHongweiMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyDomain" xlink:to="mvst_HuzhouHongweiNewEnergyAutomobileCoLtdHongweiMember" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_PlaceOfIncorporation" xlink:href="mvst-20211231.xsd#mvst_PlaceOfIncorporation"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipLineItems" xlink:to="mvst_PlaceOfIncorporation" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_DateOfIncorporationOrAcquisition" xlink:href="mvst-20211231.xsd#mvst_DateOfIncorporationOrAcquisition"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipLineItems" xlink:to="mvst_DateOfIncorporationOrAcquisition" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_PercentageOfOwnerships" xlink:href="mvst-20211231.xsd#mvst_PercentageOfOwnerships"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipLineItems" xlink:to="mvst_PercentageOfOwnerships" order="3" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofpropertyplantandequipmentarecarriedatcostlessaccumulateddepreciationTable">
    <loc xlink:type="locator" xlink:label="us-gaap_PublicUtilityPropertyPlantAndEquipmentLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PublicUtilityPropertyPlantAndEquipmentLineItems"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PublicUtilityPropertyPlantAndEquipmentTable" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PublicUtilityPropertyPlantAndEquipmentTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="us-gaap_PublicUtilityPropertyPlantAndEquipmentLineItems" xlink:to="us-gaap_PublicUtilityPropertyPlantAndEquipmentTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_RangeAxis" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="us-gaap_PublicUtilityPropertyPlantAndEquipmentTable" xlink:to="srt_RangeAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_RangeMember" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_RangeAxis" xlink:to="srt_RangeMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_RangeMember_0" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_RangeAxis" xlink:to="srt_RangeMember_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_MajorPropertyClassAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MajorPropertyClassAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="us-gaap_PublicUtilityPropertyPlantAndEquipmentTable" xlink:to="us-gaap_MajorPropertyClassAxis" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_MajorPropertyClass_Domain" xlink:href="mvst-20211231.xsd#mvst_MajorPropertyClass_Domain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_MajorPropertyClassAxis" xlink:to="mvst_MajorPropertyClass_Domain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_MajorPropertyClass_Domain_0" xlink:href="mvst-20211231.xsd#mvst_MajorPropertyClass_Domain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_MajorPropertyClassAxis" xlink:to="mvst_MajorPropertyClass_Domain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_MinimumMember" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MinimumMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_RangeMember" xlink:to="srt_MinimumMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_MaximumMember" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MaximumMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_RangeMember" xlink:to="srt_MaximumMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_BuildingMember" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BuildingMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_MajorPropertyClass_Domain" xlink:to="us-gaap_BuildingMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_MachineryAndEquipmentMember" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MachineryAndEquipmentMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_MajorPropertyClass_Domain" xlink:to="us-gaap_MachineryAndEquipmentMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FurnitureAndFixturesMember" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FurnitureAndFixturesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_MajorPropertyClass_Domain" xlink:to="us-gaap_FurnitureAndFixturesMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_VehiclesMember" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_VehiclesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_MajorPropertyClass_Domain" xlink:to="us-gaap_VehiclesMember" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_LeaseholdImprovementsMember" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LeaseholdImprovementsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_MajorPropertyClass_Domain" xlink:to="us-gaap_LeaseholdImprovementsMember" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PublicUtilityPropertyPlantAndEquipmentLineItems" xlink:to="us-gaap_PropertyPlantAndEquipmentUsefulLife" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PublicUtilityPropertyPlantAndEquipmentLineItems" xlink:to="us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofnetrevenuesfromcustomersTable">
    <loc xlink:type="locator" xlink:label="mvst_SignificantAccountingPoliciesDetailsScheduleofnetrevenuesfromcustomersLineItems" xlink:href="mvst-20211231.xsd#mvst_SignificantAccountingPoliciesDetailsScheduleofnetrevenuesfromcustomersLineItems"/>
    <loc xlink:type="locator" xlink:label="mvst_SignificantAccountingPoliciesDetailsScheduleofnetrevenuesfromcustomersTable" xlink:href="mvst-20211231.xsd#mvst_SignificantAccountingPoliciesDetailsScheduleofnetrevenuesfromcustomersTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="mvst_SignificantAccountingPoliciesDetailsScheduleofnetrevenuesfromcustomersLineItems" xlink:to="mvst_SignificantAccountingPoliciesDetailsScheduleofnetrevenuesfromcustomersTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AwardTypeAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AwardTypeAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_SignificantAccountingPoliciesDetailsScheduleofnetrevenuesfromcustomersTable" xlink:to="us-gaap_AwardTypeAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_AwardTypeAxis" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_AwardTypeAxis" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_PercentageOfRevenueContributedByCustomerAMember" xlink:href="mvst-20211231.xsd#mvst_PercentageOfRevenueContributedByCustomerAMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="mvst_PercentageOfRevenueContributedByCustomerAMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_PercentageOfRevenueContributedByCustomerBMember" xlink:href="mvst-20211231.xsd#mvst_PercentageOfRevenueContributedByCustomerBMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="mvst_PercentageOfRevenueContributedByCustomerBMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_PercentageOfRevenueContributedByCustomer" xlink:href="mvst-20211231.xsd#mvst_PercentageOfRevenueContributedByCustomer"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SignificantAccountingPoliciesDetailsScheduleofnetrevenuesfromcustomersLineItems" xlink:to="mvst_PercentageOfRevenueContributedByCustomer" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofaccountsreceivablefromcustomersTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfAccountsReceivableFromCustomersAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfAccountsReceivableFromCustomersAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_PercentageOfAccountsReceivableFromCustomer" xlink:href="mvst-20211231.xsd#mvst_PercentageOfAccountsReceivableFromCustomer"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfAccountsReceivableFromCustomersAbstract" xlink:to="mvst_PercentageOfAccountsReceivableFromCustomer" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofownershipinterestsofthecompanysstockholdersTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfOwnershipInterestsOfTheCompanySStockholdersAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfOwnershipInterestsOfTheCompanySStockholdersAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_ExistingMicrovastEquityHolders" xlink:href="mvst-20211231.xsd#mvst_ExistingMicrovastEquityHolders"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfOwnershipInterestsOfTheCompanySStockholdersAbstract" xlink:to="mvst_ExistingMicrovastEquityHolders" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ExistingMicrovastConvertibleNoteholdersinShares" xlink:href="mvst-20211231.xsd#mvst_ExistingMicrovastConvertibleNoteholdersinShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfOwnershipInterestsOfTheCompanySStockholdersAbstract" xlink:to="mvst_ExistingMicrovastConvertibleNoteholdersinShares" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_TuscanPublicStockholders" xlink:href="mvst-20211231.xsd#mvst_TuscanPublicStockholders"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfOwnershipInterestsOfTheCompanySStockholdersAbstract" xlink:to="mvst_TuscanPublicStockholders" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SponsorGroupinShares" xlink:href="mvst-20211231.xsd#mvst_SponsorGroupinShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfOwnershipInterestsOfTheCompanySStockholdersAbstract" xlink:to="mvst_SponsorGroupinShares" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_EarlyBirdCapital" xlink:href="mvst-20211231.xsd#mvst_EarlyBirdCapital"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfOwnershipInterestsOfTheCompanySStockholdersAbstract" xlink:to="mvst_EarlyBirdCapital" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SharesOutstandingPIPEInvestorsImmediatelyAfterMerger" xlink:href="mvst-20211231.xsd#mvst_SharesOutstandingPIPEInvestorsImmediatelyAfterMerger"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfOwnershipInterestsOfTheCompanySStockholdersAbstract" xlink:to="mvst_SharesOutstandingPIPEInvestorsImmediatelyAfterMerger" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_CommonStock" xlink:href="mvst-20211231.xsd#mvst_CommonStock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfOwnershipInterestsOfTheCompanySStockholdersAbstract" xlink:to="mvst_CommonStock" order="6" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofaccountsreceivableTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfAccountsReceivableAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfAccountsReceivableAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AccountsReceivableGrossCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsReceivableGrossCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfAccountsReceivableAbstract" xlink:to="us-gaap_AccountsReceivableGrossCurrent" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfAccountsReceivableAbstract" xlink:to="us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AccountsReceivableNetCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfAccountsReceivableAbstract" xlink:to="us-gaap_AccountsReceivableNetCurrent" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofallowancefordoubtfulaccountsTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfAllowanceForDoubtfulAccountsAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfAllowanceForDoubtfulAccountsAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_AllowanceForDoubtfulAccountReceivable" xlink:href="mvst-20211231.xsd#mvst_AllowanceForDoubtfulAccountReceivable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfAllowanceForDoubtfulAccountsAbstract" xlink:to="mvst_AllowanceForDoubtfulAccountReceivable" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ChargeToExpenses" xlink:href="mvst-20211231.xsd#mvst_ChargeToExpenses"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfAllowanceForDoubtfulAccountsAbstract" xlink:to="mvst_ChargeToExpenses" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AccountsReceivableWriteOff" xlink:href="mvst-20211231.xsd#mvst_AccountsReceivableWriteOff"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfAllowanceForDoubtfulAccountsAbstract" xlink:to="mvst_AccountsReceivableWriteOff" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfAllowanceForDoubtfulAccountsAbstract" xlink:to="us-gaap_AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease" order="3" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofinventoriesTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfInventoriesAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfInventoriesAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InventoryRawMaterialsNetOfReserves" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryRawMaterialsNetOfReserves"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfInventoriesAbstract" xlink:to="us-gaap_InventoryRawMaterialsNetOfReserves" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InventoryWorkInProcessNetOfReserves" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryWorkInProcessNetOfReserves"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfInventoriesAbstract" xlink:to="us-gaap_InventoryWorkInProcessNetOfReserves" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InventoryFinishedGoodsNetOfReserves" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryFinishedGoodsNetOfReserves"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfInventoriesAbstract" xlink:to="us-gaap_InventoryFinishedGoodsNetOfReserves" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InventoryNet" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryNet"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfInventoriesAbstract" xlink:to="us-gaap_InventoryNet" order="3" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofreceivablesrepresentedtheamountavailableforfuturedeductionagainstVATpayableTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfReceivablesRepresentedTheAmountAvailableForFutureDeductionAgainstVatPayableAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfReceivablesRepresentedTheAmountAvailableForFutureDeductionAgainstVatPayableAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_Supplies" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Supplies"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfReceivablesRepresentedTheAmountAvailableForFutureDeductionAgainstVatPayableAbstract" xlink:to="us-gaap_Supplies" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PrepaidExpenseCurrentAndNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PrepaidExpenseCurrentAndNoncurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfReceivablesRepresentedTheAmountAvailableForFutureDeductionAgainstVatPayableAbstract" xlink:to="us-gaap_PrepaidExpenseCurrentAndNoncurrent" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ValueAddedTaxReceivable" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ValueAddedTaxReceivable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfReceivablesRepresentedTheAmountAvailableForFutureDeductionAgainstVatPayableAbstract" xlink:to="us-gaap_ValueAddedTaxReceivable" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DepositAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DepositAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfReceivablesRepresentedTheAmountAvailableForFutureDeductionAgainstVatPayableAbstract" xlink:to="us-gaap_DepositAssets" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_OtherReceivables" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherReceivables"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfReceivablesRepresentedTheAmountAvailableForFutureDeductionAgainstVatPayableAbstract" xlink:to="us-gaap_OtherReceivables" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PrepaidExpenseCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PrepaidExpenseCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfReceivablesRepresentedTheAmountAvailableForFutureDeductionAgainstVatPayableAbstract" xlink:to="us-gaap_PrepaidExpenseCurrent" order="5" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofpropertyplantandequipmentnetTable">
    <loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems" xlink:to="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:to="us-gaap_PropertyPlantAndEquipmentByTypeAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_MachineriesAndEquipmentMember" xlink:href="mvst-20211231.xsd#mvst_MachineriesAndEquipmentMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="mvst_MachineriesAndEquipmentMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_BuildingMember" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BuildingMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="us-gaap_BuildingMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_LeaseholdImprovementsMember" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LeaseholdImprovementsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="us-gaap_LeaseholdImprovementsMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_FixturesAndElectronicEquipmentMember" xlink:href="mvst-20211231.xsd#mvst_FixturesAndElectronicEquipmentMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="mvst_FixturesAndElectronicEquipmentMember" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_MotorVehiclesMember" xlink:href="mvst-20211231.xsd#mvst_MotorVehiclesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="mvst_MotorVehiclesMember" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentGross" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems" xlink:to="us-gaap_PropertyPlantAndEquipmentGross" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems" xlink:to="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ConstructionInProgressGross" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConstructionInProgressGross"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems" xlink:to="us-gaap_ConstructionInProgressGross" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentNet" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems" xlink:to="us-gaap_PropertyPlantAndEquipmentNet" order="4" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleoflanduserightsTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfLandUseRightsAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfLandUseRightsAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_CostOfLandUseRights" xlink:href="mvst-20211231.xsd#mvst_CostOfLandUseRights"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfLandUseRightsAbstract" xlink:to="mvst_CostOfLandUseRights" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_LandUseRightsAccumulatedAmortization" xlink:href="mvst-20211231.xsd#mvst_LandUseRightsAccumulatedAmortization"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfLandUseRightsAbstract" xlink:to="mvst_LandUseRightsAccumulatedAmortization" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_LandUseRightsNet" xlink:href="mvst-20211231.xsd#mvst_LandUseRightsNet"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfLandUseRightsAbstract" xlink:to="mvst_LandUseRightsNet" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofintangibleassetsnetTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfIntangibleAssetsNetAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfIntangibleAssetsNetAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FinitelivedIntangibleAssetsAcquired1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinitelivedIntangibleAssetsAcquired1"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfIntangibleAssetsNetAbstract" xlink:to="us-gaap_FinitelivedIntangibleAssetsAcquired1" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AccumulatedAmortizations" xlink:href="mvst-20211231.xsd#mvst_AccumulatedAmortizations"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfIntangibleAssetsNetAbstract" xlink:to="mvst_AccumulatedAmortizations" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AcquiredIntangibleAssetsNet" xlink:href="mvst-20211231.xsd#mvst_AcquiredIntangibleAssetsNet"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfIntangibleAssetsNetAbstract" xlink:to="mvst_AcquiredIntangibleAssetsNet" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofannualamortizationexpenseTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfAnnualAmortizationExpenseAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfAnnualAmortizationExpenseAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfAnnualAmortizationExpenseAbstract" xlink:to="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfAnnualAmortizationExpenseAbstract" xlink:to="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfAnnualAmortizationExpenseAbstract" xlink:to="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfAnnualAmortizationExpenseAbstract" xlink:to="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfAnnualAmortizationExpenseAbstract" xlink:to="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xlink:to="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_FiniteLivedIntangibleAssetNet" xlink:href="mvst-20211231.xsd#mvst_FiniteLivedIntangibleAssetNet"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xlink:to="mvst_FiniteLivedIntangibleAssetNet" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofaccruedexpensesandothercurrentliabilitiesTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_ProductsWarranty" xlink:href="mvst-20211231.xsd#mvst_ProductsWarranty"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesAbstract" xlink:to="mvst_ProductsWarranty" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PaymentsToAcquireProductiveAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsToAcquireProductiveAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesAbstract" xlink:to="us-gaap_PaymentsToAcquireProductiveAssets" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_OtherLiabilitiesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesAbstract" xlink:to="us-gaap_OtherLiabilitiesCurrent" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AccruedPayrollAndWelfare1" xlink:href="mvst-20211231.xsd#mvst_AccruedPayrollAndWelfare1"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesAbstract" xlink:to="mvst_AccruedPayrollAndWelfare1" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AccruedLiabilitiesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesAbstract" xlink:to="us-gaap_AccruedLiabilitiesCurrent" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InterestPayableCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestPayableCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesAbstract" xlink:to="us-gaap_InterestPayableCurrent" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrentAndNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrentAndNoncurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesAbstract" xlink:to="us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrentAndNoncurrent" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_PayableToExitingInvestor" xlink:href="mvst-20211231.xsd#mvst_PayableToExitingInvestor"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesAbstract" xlink:to="mvst_PayableToExitingInvestor" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NotesPayable" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NotesPayable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesAbstract" xlink:to="us-gaap_NotesPayable" order="8" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofmovementofproductwarrantyTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfMovementOfProductWarrantyAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfMovementOfProductWarrantyAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_MovementOfProductWarrantyOpeningBalance" xlink:href="mvst-20211231.xsd#mvst_MovementOfProductWarrantyOpeningBalance"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfMovementOfProductWarrantyAbstract" xlink:to="mvst_MovementOfProductWarrantyOpeningBalance" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_Warrantyexpenseprovidedduringtheperiod" xlink:href="mvst-20211231.xsd#mvst_Warrantyexpenseprovidedduringtheperiod"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfMovementOfProductWarrantyAbstract" xlink:to="mvst_Warrantyexpenseprovidedduringtheperiod" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_WarrantsExpense" xlink:href="mvst-20211231.xsd#mvst_WarrantsExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfMovementOfProductWarrantyAbstract" xlink:to="mvst_WarrantsExpense" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_utilizationoftheproductwarrantyduringtheperiod" xlink:href="mvst-20211231.xsd#mvst_utilizationoftheproductwarrantyduringtheperiod"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfMovementOfProductWarrantyAbstract" xlink:to="mvst_utilizationoftheproductwarrantyduringtheperiod" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_MovementOfProductWarrantyEndingBalance" xlink:href="mvst-20211231.xsd#mvst_MovementOfProductWarrantyEndingBalance"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfMovementOfProductWarrantyAbstract" xlink:to="mvst_MovementOfProductWarrantyEndingBalance" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ProductWarrantyAccrualClassifiedCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProductWarrantyAccrualClassifiedCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfMovementOfProductWarrantyAbstract" xlink:to="us-gaap_ProductWarrantyAccrualClassifiedCurrent" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ProductWarrantyAccrualNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProductWarrantyAccrualNoncurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfMovementOfProductWarrantyAbstract" xlink:to="us-gaap_ProductWarrantyAccrualNoncurrent" order="6" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofbankborrowingsTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfBankBorrowingsAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfBankBorrowingsAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_BankBorrowingsBeginningBalance" xlink:href="mvst-20211231.xsd#mvst_BankBorrowingsBeginningBalance"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfBankBorrowingsAbstract" xlink:to="mvst_BankBorrowingsBeginningBalance" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ProceedsFromIssuanceOfDebt" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromIssuanceOfDebt"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfBankBorrowingsAbstract" xlink:to="us-gaap_ProceedsFromIssuanceOfDebt" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_RepaymentsOfPrincipal" xlink:href="mvst-20211231.xsd#mvst_RepaymentsOfPrincipal"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfBankBorrowingsAbstract" xlink:to="mvst_RepaymentsOfPrincipal" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ExchangeDifference" xlink:href="mvst-20211231.xsd#mvst_ExchangeDifference"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfBankBorrowingsAbstract" xlink:to="mvst_ExchangeDifference" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_BankBorrowingsEndingBalance" xlink:href="mvst-20211231.xsd#mvst_BankBorrowingsEndingBalance"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfBankBorrowingsAbstract" xlink:to="mvst_BankBorrowingsEndingBalance" order="4" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofaggregatecarryingamountoftheassetspledgedbythegroupTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfAggregateCarryingAmountOfTheAssetsPledgedByTheGroupAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfAggregateCarryingAmountOfTheAssetsPledgedByTheGroupAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_PledgedBuildings" xlink:href="mvst-20211231.xsd#mvst_PledgedBuildings"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfAggregateCarryingAmountOfTheAssetsPledgedByTheGroupAbstract" xlink:to="mvst_PledgedBuildings" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_PledgedMachineryAndEquipmentGross" xlink:href="mvst-20211231.xsd#mvst_PledgedMachineryAndEquipmentGross"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfAggregateCarryingAmountOfTheAssetsPledgedByTheGroupAbstract" xlink:to="mvst_PledgedMachineryAndEquipmentGross" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_PledgedLandUseRights" xlink:href="mvst-20211231.xsd#mvst_PledgedLandUseRights"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfAggregateCarryingAmountOfTheAssetsPledgedByTheGroupAbstract" xlink:to="mvst_PledgedLandUseRights" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_PledgedTotalAsset" xlink:href="mvst-20211231.xsd#mvst_PledgedTotalAsset"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfAggregateCarryingAmountOfTheAssetsPledgedByTheGroupAbstract" xlink:to="mvst_PledgedTotalAsset" order="3" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofotherNonCurrentLiabilitiesTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfOtherNonCurrentLiabilitiesAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfOtherNonCurrentLiabilitiesAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_PayablesToExitingInvestor" xlink:href="mvst-20211231.xsd#mvst_PayablesToExitingInvestor"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfOtherNonCurrentLiabilitiesAbstract" xlink:to="mvst_PayablesToExitingInvestor" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ProductWarrantyAccrualNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProductWarrantyAccrualNoncurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfOtherNonCurrentLiabilitiesAbstract" xlink:to="us-gaap_ProductWarrantyAccrualNoncurrent" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_DeferredSubsidyIncomeNoncurrent" xlink:href="mvst-20211231.xsd#mvst_DeferredSubsidyIncomeNoncurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfOtherNonCurrentLiabilitiesAbstract" xlink:to="mvst_DeferredSubsidyIncomeNoncurrent" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_OtherLiabilitiesNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfOtherNonCurrentLiabilitiesAbstract" xlink:to="us-gaap_OtherLiabilitiesNoncurrent" order="3" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofbondspayableTable">
    <loc xlink:type="locator" xlink:label="mvst_BondsPayableDetailsScheduleofbondspayableLineItems" xlink:href="mvst-20211231.xsd#mvst_BondsPayableDetailsScheduleofbondspayableLineItems"/>
    <loc xlink:type="locator" xlink:label="mvst_BondsPayableDetailsScheduleofbondspayableTable" xlink:href="mvst-20211231.xsd#mvst_BondsPayableDetailsScheduleofbondspayableTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="mvst_BondsPayableDetailsScheduleofbondspayableLineItems" xlink:to="mvst_BondsPayableDetailsScheduleofbondspayableTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_BondsPayableDetailsScheduleofbondspayableTable" xlink:to="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="us-gaap_RelatedPartyDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="us-gaap_RelatedPartyDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ThirdpartyInvestorsMember" xlink:href="mvst-20211231.xsd#mvst_ThirdpartyInvestorsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyDomain" xlink:to="mvst_ThirdpartyInvestorsMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_HuzhouSaiyuanMember" xlink:href="mvst-20211231.xsd#mvst_HuzhouSaiyuanMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyDomain" xlink:to="mvst_HuzhouSaiyuanMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_BondsPayableAbstract0" xlink:href="mvst-20211231.xsd#mvst_BondsPayableAbstract0"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BondsPayableDetailsScheduleofbondspayableLineItems" xlink:to="mvst_BondsPayableAbstract0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_BondsPayableCurrent" xlink:href="mvst-20211231.xsd#mvst_BondsPayableCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BondsPayableAbstract0" xlink:to="mvst_BondsPayableCurrent" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_LongTermBondsPayableAbstract" xlink:href="mvst-20211231.xsd#mvst_LongTermBondsPayableAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BondsPayableDetailsScheduleofbondspayableLineItems" xlink:to="mvst_LongTermBondsPayableAbstract" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_LongTermBondsPayable" xlink:href="mvst-20211231.xsd#mvst_LongTermBondsPayable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_LongTermBondsPayableAbstract" xlink:to="mvst_LongTermBondsPayable" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofrepaymentsandinterestsTable">
    <loc xlink:type="locator" xlink:label="mvst_BondsPayableDetailsScheduleofrepaymentsandinterestsLineItems" xlink:href="mvst-20211231.xsd#mvst_BondsPayableDetailsScheduleofrepaymentsandinterestsLineItems"/>
    <loc xlink:type="locator" xlink:label="mvst_BondsPayableDetailsScheduleofrepaymentsandinterestsTable" xlink:href="mvst-20211231.xsd#mvst_BondsPayableDetailsScheduleofrepaymentsandinterestsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="mvst_BondsPayableDetailsScheduleofrepaymentsandinterestsLineItems" xlink:to="mvst_BondsPayableDetailsScheduleofrepaymentsandinterestsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_RangeAxis" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_BondsPayableDetailsScheduleofrepaymentsandinterestsTable" xlink:to="srt_RangeAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_RangeMember" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_RangeAxis" xlink:to="srt_RangeMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_RangeMember_0" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_RangeAxis" xlink:to="srt_RangeMember_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AwardDateAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AwardDateAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_BondsPayableDetailsScheduleofrepaymentsandinterestsTable" xlink:to="us-gaap_AwardDateAxis" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AwardDateDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AwardDateDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_AwardDateAxis" xlink:to="us-gaap_AwardDateDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AwardDateDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AwardDateDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_AwardDateAxis" xlink:to="us-gaap_AwardDateDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_JuneThirtyTwentyTwentyThreeMember" xlink:href="mvst-20211231.xsd#mvst_JuneThirtyTwentyTwentyThreeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AwardDateDomain" xlink:to="mvst_JuneThirtyTwentyTwentyThreeMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AprilTwentyEightMember" xlink:href="mvst-20211231.xsd#mvst_AprilTwentyEightMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AwardDateDomain" xlink:to="mvst_AprilTwentyEightMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_JulyElevenMember" xlink:href="mvst-20211231.xsd#mvst_JulyElevenMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AwardDateDomain" xlink:to="mvst_JulyElevenMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_OctoberOneMember" xlink:href="mvst-20211231.xsd#mvst_OctoberOneMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AwardDateDomain" xlink:to="mvst_OctoberOneMember" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AprilThirteenMember" xlink:href="mvst-20211231.xsd#mvst_AprilThirteenMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AwardDateDomain" xlink:to="mvst_AprilThirteenMember" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_MinimumMember" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MinimumMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_RangeMember" xlink:to="srt_MinimumMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_MaximumMember" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MaximumMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_RangeMember" xlink:to="srt_MaximumMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentIssuanceDate1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentIssuanceDate1"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BondsPayableDetailsScheduleofrepaymentsandinterestsLineItems" xlink:to="us-gaap_DebtInstrumentIssuanceDate1" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_DebtInstrumentOfSubscribedAmount" xlink:href="mvst-20211231.xsd#mvst_DebtInstrumentOfSubscribedAmount"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BondsPayableDetailsScheduleofrepaymentsandinterestsLineItems" xlink:to="mvst_DebtInstrumentOfSubscribedAmount" order="2" xbrldt:closed="true"/>
<!-- [WMV5][XcpuxYn59dz7vgYynUDuwG7r97K2jUTysl7vcz0lJt/tSeJz73kx1cLt0ZFF2SK/vxBCY0vdSrYqZsk5psOI8vY31hMACnam7jYkxg1suD2aKgSa9FOwcvgjgrFxIWENZgDGeo36on69axiV+RNW4EJGS0KguaOxWPk/CQPsMWdDUgT9rnD615yHgc7m5uK43/X55ifYB9gZE4xS1Ey6V+m/5J0jjAD+JT/EPPXdZnfympnzbYuynp1OyDQrDCTUik8qnHFOsvIzef8sntQFq3egivxw1dkI] CSR-->
    <loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentMaturityDate" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentMaturityDate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BondsPayableDetailsScheduleofrepaymentsandinterestsLineItems" xlink:to="us-gaap_DebtInstrumentMaturityDate" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_DebtInstrumentOfRepaymentAmount" xlink:href="mvst-20211231.xsd#mvst_DebtInstrumentOfRepaymentAmount"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BondsPayableDetailsScheduleofrepaymentsandinterestsLineItems" xlink:to="mvst_DebtInstrumentOfRepaymentAmount" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BondsPayableDetailsScheduleofrepaymentsandinterestsLineItems" xlink:to="us-gaap_DebtInstrumentInterestRateStatedPercentage" order="5" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofoptimalexerciseoftheCompanysredemptionoptionattheearliestpossibledateTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfOptimalExerciseOfTheCompanySRedemptionOptionAtTheEarliestPossibleDateAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfOptimalExerciseOfTheCompanySRedemptionOptionAtTheEarliestPossibleDateAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_SharePrice" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharePrice"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfOptimalExerciseOfTheCompanySRedemptionOptionAtTheEarliestPossibleDateAbstract" xlink:to="us-gaap_SharePrice" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfOptimalExerciseOfTheCompanySRedemptionOptionAtTheEarliestPossibleDateAbstract" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfOptimalExerciseOfTheCompanySRedemptionOptionAtTheEarliestPossibleDateAbstract" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfOptimalExerciseOfTheCompanySRedemptionOptionAtTheEarliestPossibleDateAbstract" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfOptimalExerciseOfTheCompanySRedemptionOptionAtTheEarliestPossibleDateAbstract" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionValuationMethodExpectedDividendRate" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionValuationMethodExpectedDividendRate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfOptimalExerciseOfTheCompanySRedemptionOptionAtTheEarliestPossibleDateAbstract" xlink:to="us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionValuationMethodExpectedDividendRate" order="5" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleoffairvaluemeasurementsofgroupsassetsandliabilitiesofrecurringbasisTable">
    <loc xlink:type="locator" xlink:label="mvst_FairValueMeasurementDetailsScheduleoffairvaluemeasurementsofgroupsassetsandliabilitiesofrecurringbasisLineItems" xlink:href="mvst-20211231.xsd#mvst_FairValueMeasurementDetailsScheduleoffairvaluemeasurementsofgroupsassetsandliabilitiesofrecurringbasisLineItems"/>
    <loc xlink:type="locator" xlink:label="mvst_FairValueMeasurementDetailsScheduleoffairvaluemeasurementsofgroupsassetsandliabilitiesofrecurringbasisTable" xlink:href="mvst-20211231.xsd#mvst_FairValueMeasurementDetailsScheduleoffairvaluemeasurementsofgroupsassetsandliabilitiesofrecurringbasisTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="mvst_FairValueMeasurementDetailsScheduleoffairvaluemeasurementsofgroupsassetsandliabilitiesofrecurringbasisLineItems" xlink:to="mvst_FairValueMeasurementDetailsScheduleoffairvaluemeasurementsofgroupsassetsandliabilitiesofrecurringbasisTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_FairValueMeasurementDetailsScheduleoffairvaluemeasurementsofgroupsassetsandliabilitiesofrecurringbasisTable" xlink:to="us-gaap_FairValueByFairValueHierarchyLevelAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:to="us-gaap_FairValueMeasurementsFairValueHierarchyDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:to="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FairValueInputsLevel1Member" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:to="us-gaap_FairValueInputsLevel1Member" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FairValueInputsLevel2Member" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:to="us-gaap_FairValueInputsLevel2Member" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FairValueInputsLevel3Member" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:to="us-gaap_FairValueInputsLevel3Member" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CashEquivalentsAtCarryingValue" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashEquivalentsAtCarryingValue"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_FairValueMeasurementDetailsScheduleoffairvaluemeasurementsofgroupsassetsandliabilitiesofrecurringbasisLineItems" xlink:to="us-gaap_CashEquivalentsAtCarryingValue" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RestrictedCash" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestrictedCash"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_FairValueMeasurementDetailsScheduleoffairvaluemeasurementsofgroupsassetsandliabilitiesofrecurringbasisLineItems" xlink:to="us-gaap_RestrictedCash" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AssetsFairValueDisclosure" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_FairValueMeasurementDetailsScheduleoffairvaluemeasurementsofgroupsassetsandliabilitiesofrecurringbasisLineItems" xlink:to="us-gaap_AssetsFairValueDisclosure" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DerivativeLiabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativeLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_FairValueMeasurementDetailsScheduleoffairvaluemeasurementsofgroupsassetsandliabilitiesofrecurringbasisLineItems" xlink:to="us-gaap_DerivativeLiabilities" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FinancialLiabilitiesFairValueDisclosure" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinancialLiabilitiesFairValueDisclosure"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_FairValueMeasurementDetailsScheduleoffairvaluemeasurementsofgroupsassetsandliabilitiesofrecurringbasisLineItems" xlink:to="us-gaap_FinancialLiabilitiesFairValueDisclosure" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_Cash" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Cash"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_FairValueMeasurementDetailsScheduleoffairvaluemeasurementsofgroupsassetsandliabilitiesofrecurringbasisLineItems" xlink:to="us-gaap_Cash" order="6" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofreconciliationofthebeginningandendingbalancesforassetsandliabilitiesmeasuredatfairvalueonarecurringbasisTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfReconciliationOfTheBeginningAndEndingBalancesForAssetsAndLiabilitiesMeasuredAtFairValueOnARecurringBasisAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfReconciliationOfTheBeginningAndEndingBalancesForAssetsAndLiabilitiesMeasuredAtFairValueOnARecurringBasisAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_ConvertibleNotesMeasuredatFairValue" xlink:href="mvst-20211231.xsd#mvst_ConvertibleNotesMeasuredatFairValue"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfReconciliationOfTheBeginningAndEndingBalancesForAssetsAndLiabilitiesMeasuredAtFairValueOnARecurringBasisAbstract" xlink:to="mvst_ConvertibleNotesMeasuredatFairValue" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_IssuanceOfBridgeNote" xlink:href="mvst-20211231.xsd#mvst_IssuanceOfBridgeNote"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfReconciliationOfTheBeginningAndEndingBalancesForAssetsAndLiabilitiesMeasuredAtFairValueOnARecurringBasisAbstract" xlink:to="mvst_IssuanceOfBridgeNote" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ChangesInFairValueOfConvertibleNotes" xlink:href="mvst-20211231.xsd#mvst_ChangesInFairValueOfConvertibleNotes"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfReconciliationOfTheBeginningAndEndingBalancesForAssetsAndLiabilitiesMeasuredAtFairValueOnARecurringBasisAbstract" xlink:to="mvst_ChangesInFairValueOfConvertibleNotes" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ConversionsAsOfMerger" xlink:href="mvst-20211231.xsd#mvst_ConversionsAsOfMerger"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfReconciliationOfTheBeginningAndEndingBalancesForAssetsAndLiabilitiesMeasuredAtFairValueOnARecurringBasisAbstract" xlink:to="mvst_ConversionsAsOfMerger" order="3" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofreconciliationofthebeginningandendingbalancesforLevel3warrantliabilityTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfReconciliationOfTheBeginningAndEndingBalancesForLevel3WarrantLiabilityAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfReconciliationOfTheBeginningAndEndingBalancesForLevel3WarrantLiabilityAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfReconciliationOfTheBeginningAndEndingBalancesForLevel3WarrantLiabilityAbstract" xlink:to="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_LiabilitiesFairValueAdjustment" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesFairValueAdjustment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfReconciliationOfTheBeginningAndEndingBalancesForLevel3WarrantLiabilityAbstract" xlink:to="us-gaap_LiabilitiesFairValueAdjustment" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfReconciliationOfTheBeginningAndEndingBalancesForLevel3WarrantLiabilityAbstract" xlink:to="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleoflossbeforeprovisionforincometaxesTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfLossBeforeProvisionForIncomeTaxesAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfLossBeforeProvisionForIncomeTaxesAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfLossBeforeProvisionForIncomeTaxesAbstract" xlink:to="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfLossBeforeProvisionForIncomeTaxesAbstract" xlink:to="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_LossBeforeIncomeTax" xlink:href="mvst-20211231.xsd#mvst_LossBeforeIncomeTax"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfLossBeforeProvisionForIncomeTaxesAbstract" xlink:to="mvst_LossBeforeIncomeTax" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofcurrentanddeferredcomponentsoftheincometaxexpenseTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfCurrentAndDeferredComponentsOfTheIncomeTaxExpenseAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfCurrentAndDeferredComponentsOfTheIncomeTaxExpenseAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_CurrentTaxExpensesAbstract" xlink:href="mvst-20211231.xsd#mvst_CurrentTaxExpensesAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfCurrentAndDeferredComponentsOfTheIncomeTaxExpenseAbstract" xlink:to="mvst_CurrentTaxExpensesAbstract" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CurrentStateAndLocalTaxExpenseBenefit" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CurrentStateAndLocalTaxExpenseBenefit"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_CurrentTaxExpensesAbstract" xlink:to="us-gaap_CurrentStateAndLocalTaxExpenseBenefit" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CurrentForeignTaxExpenseBenefit" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CurrentForeignTaxExpenseBenefit"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_CurrentTaxExpensesAbstract" xlink:to="us-gaap_CurrentForeignTaxExpenseBenefit" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CurrentIncomeTaxExpenseBenefit" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_CurrentTaxExpensesAbstract" xlink:to="us-gaap_CurrentIncomeTaxExpenseBenefit" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_DeferredTaxExpenseAbstract" xlink:href="mvst-20211231.xsd#mvst_DeferredTaxExpenseAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfCurrentAndDeferredComponentsOfTheIncomeTaxExpenseAbstract" xlink:to="mvst_DeferredTaxExpenseAbstract" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_DeferredTaxExpenseAbstract" xlink:to="us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DeferredForeignIncomeTaxExpenseBenefit" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredForeignIncomeTaxExpenseBenefit"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_DeferredTaxExpenseAbstract" xlink:to="us-gaap_DeferredForeignIncomeTaxExpenseBenefit" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_DeferredTaxExpenseAbstract" xlink:to="us-gaap_DeferredIncomeTaxExpenseBenefit" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_TotalProvisionForIncomeTaxes" xlink:href="mvst-20211231.xsd#mvst_TotalProvisionForIncomeTaxes"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfCurrentAndDeferredComponentsOfTheIncomeTaxExpenseAbstract" xlink:to="mvst_TotalProvisionForIncomeTaxes" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofdeferredtaxassetsTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfDeferredTaxAssetsAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfDeferredTaxAssetsAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_DeferredTaxAssetsAbstract" xlink:href="mvst-20211231.xsd#mvst_DeferredTaxAssetsAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfDeferredTaxAssetsAbstract" xlink:to="mvst_DeferredTaxAssetsAbstract" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwards"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_DeferredTaxAssetsAbstract" xlink:to="us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_DeferredTaxAssetsAbstract" xlink:to="us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ProductWarranty" xlink:href="mvst-20211231.xsd#mvst_ProductWarranty"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_DeferredTaxAssetsAbstract" xlink:to="mvst_ProductWarranty" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_DeferredTaxAssetsAbstract" xlink:to="us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsDeferredIncome" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsDeferredIncome"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_DeferredTaxAssetsAbstract" xlink:to="us-gaap_DeferredTaxAssetsDeferredIncome" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_DeferredTaxAssetsAbstract" xlink:to="us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsOther" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsOther"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_DeferredTaxAssetsAbstract" xlink:to="us-gaap_DeferredTaxAssetsOther" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_LessValuationAllowance" xlink:href="mvst-20211231.xsd#mvst_LessValuationAllowance"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_DeferredTaxAssetsAbstract" xlink:to="mvst_LessValuationAllowance" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsNet" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsNet"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_DeferredTaxAssetsAbstract" xlink:to="us-gaap_DeferredTaxAssetsNet" order="8" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofvaluationallowanceTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfValuationAllowanceAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfValuationAllowanceAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsValuationAllowance" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsValuationAllowance"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfValuationAllowanceAbstract" xlink:to="us-gaap_DeferredTaxAssetsValuationAllowance" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ValuationAllowanceAdditions" xlink:href="mvst-20211231.xsd#mvst_ValuationAllowanceAdditions"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfValuationAllowanceAbstract" xlink:to="mvst_ValuationAllowanceAdditions" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ValuationAllowanceReversal" xlink:href="mvst-20211231.xsd#mvst_ValuationAllowanceReversal"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfValuationAllowanceAbstract" xlink:to="mvst_ValuationAllowanceReversal" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofreconciliationbetweentheincometaxexpenseTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfReconciliationBetweenTheIncomeTaxExpenseAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfReconciliationBetweenTheIncomeTaxExpenseAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_LossBeforeIncomesTaxes" xlink:href="mvst-20211231.xsd#mvst_LossBeforeIncomesTaxes"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfReconciliationBetweenTheIncomeTaxExpenseAbstract" xlink:to="mvst_LossBeforeIncomesTaxes" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfReconciliationBetweenTheIncomeTaxExpenseAbstract" xlink:to="us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncomeTaxReconciliationNondeductibleExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfReconciliationBetweenTheIncomeTaxExpenseAbstract" xlink:to="us-gaap_IncomeTaxReconciliationNondeductibleExpense" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_Incometaxreconciliationinpermanentdifferences" xlink:href="mvst-20211231.xsd#mvst_Incometaxreconciliationinpermanentdifferences"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfReconciliationBetweenTheIncomeTaxExpenseAbstract" xlink:to="mvst_Incometaxreconciliationinpermanentdifferences" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_IncomeTaxReconciliationTaxEffectOfIncomeTaxRateDifferenceInOtherJurisdiction" xlink:href="mvst-20211231.xsd#mvst_IncomeTaxReconciliationTaxEffectOfIncomeTaxRateDifferenceInOtherJurisdiction"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfReconciliationBetweenTheIncomeTaxExpenseAbstract" xlink:to="mvst_IncomeTaxReconciliationTaxEffectOfIncomeTaxRateDifferenceInOtherJurisdiction" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfReconciliationBetweenTheIncomeTaxExpenseAbstract" xlink:to="us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_Others" xlink:href="mvst-20211231.xsd#mvst_Others"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfReconciliationBetweenTheIncomeTaxExpenseAbstract" xlink:to="mvst_Others" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_IncomeTaxExpenses" xlink:href="mvst-20211231.xsd#mvst_IncomeTaxExpenses"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfReconciliationBetweenTheIncomeTaxExpenseAbstract" xlink:to="mvst_IncomeTaxExpenses" order="7" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofreconciliationbetweentheincometaxexpenseTable_Parentheticals">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfReconciliationBetweenTheIncomeTaxExpenseAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfReconciliationBetweenTheIncomeTaxExpenseAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_USFederalCorporateIncomeTaxRatePercentage" xlink:href="mvst-20211231.xsd#mvst_USFederalCorporateIncomeTaxRatePercentage"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfReconciliationBetweenTheIncomeTaxExpenseAbstract" xlink:to="mvst_USFederalCorporateIncomeTaxRatePercentage" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofpreferredsharesissuedandoutstandingTable">
    <loc xlink:type="locator" xlink:label="us-gaap_PreferredUnitsLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredUnitsLineItems"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfPreferredUnitsTable" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfPreferredUnitsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="us-gaap_PreferredUnitsLineItems" xlink:to="us-gaap_ScheduleOfPreferredUnitsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StatementClassOfStockAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementClassOfStockAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="us-gaap_ScheduleOfPreferredUnitsTable" xlink:to="us-gaap_StatementClassOfStockAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SeriesC1PreferredMember" xlink:href="mvst-20211231.xsd#mvst_SeriesC1PreferredMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="mvst_SeriesC1PreferredMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SeriesC2PreferredMember" xlink:href="mvst-20211231.xsd#mvst_SeriesC2PreferredMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="mvst_SeriesC2PreferredMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_SeriesDPreferredStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SeriesDPreferredStockMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="us-gaap_SeriesDPreferredStockMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_TemporaryEquitySharesIssued" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TemporaryEquitySharesIssued"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PreferredUnitsLineItems" xlink:to="us-gaap_TemporaryEquitySharesIssued" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ShareholdersDescription" xlink:href="mvst-20211231.xsd#mvst_ShareholdersDescription"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PreferredUnitsLineItems" xlink:to="mvst_ShareholdersDescription" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofbalanceofSeriesPreferredandredeemablenoncontrollinginterestsTable">
    <loc xlink:type="locator" xlink:label="us-gaap_RedeemableNoncontrollingInterestLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RedeemableNoncontrollingInterestLineItems"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RedeemableNoncontrollingInterestByLegalEntityTable" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RedeemableNoncontrollingInterestByLegalEntityTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="us-gaap_RedeemableNoncontrollingInterestLineItems" xlink:to="us-gaap_RedeemableNoncontrollingInterestByLegalEntityTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StatementClassOfStockAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementClassOfStockAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="us-gaap_RedeemableNoncontrollingInterestByLegalEntityTable" xlink:to="us-gaap_StatementClassOfStockAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SeriesA1C1PreferredMember" xlink:href="mvst-20211231.xsd#mvst_SeriesA1C1PreferredMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="mvst_SeriesA1C1PreferredMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SeriesB1C2PreferredMember" xlink:href="mvst-20211231.xsd#mvst_SeriesB1C2PreferredMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="mvst_SeriesB1C2PreferredMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SeriesEELD1PreferredMember" xlink:href="mvst-20211231.xsd#mvst_SeriesEELD1PreferredMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="mvst_SeriesEELD1PreferredMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_RedeemableNoncontrollingInterestsMember" xlink:href="mvst-20211231.xsd#mvst_RedeemableNoncontrollingInterestsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="mvst_RedeemableNoncontrollingInterestsMember" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_EquityInstrumentCarryingAmount" xlink:href="mvst-20211231.xsd#mvst_EquityInstrumentCarryingAmount"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RedeemableNoncontrollingInterestLineItems" xlink:to="mvst_EquityInstrumentCarryingAmount" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AccretionBeforeTheExtinguishment" xlink:href="mvst-20211231.xsd#mvst_AccretionBeforeTheExtinguishment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RedeemableNoncontrollingInterestLineItems" xlink:to="mvst_AccretionBeforeTheExtinguishment" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ConversionFromSeriesA1ToC2PreferredinShares" xlink:href="mvst-20211231.xsd#mvst_ConversionFromSeriesA1ToC2PreferredinShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RedeemableNoncontrollingInterestLineItems" xlink:to="mvst_ConversionFromSeriesA1ToC2PreferredinShares" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_FairValueChangeOfPreferredSharesAndRedeemableNoncontrollingInterestsDueToTheExtingui" xlink:href="mvst-20211231.xsd#mvst_FairValueChangeOfPreferredSharesAndRedeemableNoncontrollingInterestsDueToTheExtingui"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RedeemableNoncontrollingInterestLineItems" xlink:to="mvst_FairValueChangeOfPreferredSharesAndRedeemableNoncontrollingInterestsDueToTheExtingui" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AccretionAfterTheExtinguishmentin" xlink:href="mvst-20211231.xsd#mvst_AccretionAfterTheExtinguishmentin"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RedeemableNoncontrollingInterestLineItems" xlink:to="mvst_AccretionAfterTheExtinguishmentin" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AccretionExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccretionExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RedeemableNoncontrollingInterestLineItems" xlink:to="us-gaap_AccretionExpense" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AccretionFromJanuary1ToJuly23" xlink:href="mvst-20211231.xsd#mvst_AccretionFromJanuary1ToJuly23"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RedeemableNoncontrollingInterestLineItems" xlink:to="mvst_AccretionFromJanuary1ToJuly23" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ConversionAsOfMerger" xlink:href="mvst-20211231.xsd#mvst_ConversionAsOfMerger"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RedeemableNoncontrollingInterestLineItems" xlink:to="mvst_ConversionAsOfMerger" order="8" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofmodificationdatefairvalueofthestockoptionswasdeterminedusingtheBinomialLatticeModelTable">
    <loc xlink:type="locator" xlink:label="mvst_SharebasedpaymentDetailsScheduleofmodificationdatefairvalueofthestockoptionswasdeterminedusingtheBinomialLatticeModelLineItems" xlink:href="mvst-20211231.xsd#mvst_SharebasedpaymentDetailsScheduleofmodificationdatefairvalueofthestockoptionswasdeterminedusingtheBinomialLatticeModelLineItems"/>
    <loc xlink:type="locator" xlink:label="mvst_SharebasedpaymentDetailsScheduleofmodificationdatefairvalueofthestockoptionswasdeterminedusingtheBinomialLatticeModelTable" xlink:href="mvst-20211231.xsd#mvst_SharebasedpaymentDetailsScheduleofmodificationdatefairvalueofthestockoptionswasdeterminedusingtheBinomialLatticeModelTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="mvst_SharebasedpaymentDetailsScheduleofmodificationdatefairvalueofthestockoptionswasdeterminedusingtheBinomialLatticeModelLineItems" xlink:to="mvst_SharebasedpaymentDetailsScheduleofmodificationdatefairvalueofthestockoptionswasdeterminedusingtheBinomialLatticeModelTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_RangeAxis" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_SharebasedpaymentDetailsScheduleofmodificationdatefairvalueofthestockoptionswasdeterminedusingtheBinomialLatticeModelTable" xlink:to="srt_RangeAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_RangeMember" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_RangeAxis" xlink:to="srt_RangeMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_RangeMember_0" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_RangeAxis" xlink:to="srt_RangeMember_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ValuationTechniqueAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ValuationTechniqueAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_SharebasedpaymentDetailsScheduleofmodificationdatefairvalueofthestockoptionswasdeterminedusingtheBinomialLatticeModelTable" xlink:to="us-gaap_ValuationTechniqueAxis" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ValuationTechniqueDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ValuationTechniqueDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_ValuationTechniqueAxis" xlink:to="us-gaap_ValuationTechniqueDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ValuationTechniqueDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ValuationTechniqueDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_ValuationTechniqueAxis" xlink:to="us-gaap_ValuationTechniqueDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_MinimumMember" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MinimumMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_RangeMember" xlink:to="srt_MinimumMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_MaximumMember" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MaximumMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_RangeMember" xlink:to="srt_MaximumMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_BinomialLatticeModelMember" xlink:href="mvst-20211231.xsd#mvst_BinomialLatticeModelMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ValuationTechniqueDomain" xlink:to="mvst_BinomialLatticeModelMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_MonteCarloPricingModelMember" xlink:href="mvst-20211231.xsd#mvst_MonteCarloPricingModelMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ValuationTechniqueDomain" xlink:to="mvst_MonteCarloPricingModelMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsScheduleofmodificationdatefairvalueofthestockoptionswasdeterminedusingtheBinomialLatticeModelLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsScheduleofmodificationdatefairvalueofthestockoptionswasdeterminedusingtheBinomialLatticeModelLineItems" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsScheduleofmodificationdatefairvalueofthestockoptionswasdeterminedusingtheBinomialLatticeModelLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AverageCorrelationCoefficientOfPeerCompanies" xlink:href="mvst-20211231.xsd#mvst_AverageCorrelationCoefficientOfPeerCompanies"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsScheduleofmodificationdatefairvalueofthestockoptionswasdeterminedusingtheBinomialLatticeModelLineItems" xlink:to="mvst_AverageCorrelationCoefficientOfPeerCompanies" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsScheduleofmodificationdatefairvalueofthestockoptionswasdeterminedusingtheBinomialLatticeModelLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsScheduleofmodificationdatefairvalueofthestockoptionswasdeterminedusingtheBinomialLatticeModelLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsOrdinarySharesWeightedAverageFairValueOfOptionsModified" xlink:href="mvst-20211231.xsd#mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsOrdinarySharesWeightedAverageFairValueOfOptionsModified"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsScheduleofmodificationdatefairvalueofthestockoptionswasdeterminedusingtheBinomialLatticeModelLineItems" xlink:to="mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsOrdinarySharesWeightedAverageFairValueOfOptionsModified" order="7" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofshareoptionsactivityTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfShareOptionsActivityAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfShareOptionsActivityAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfShareOptionsActivityAbstract" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrices" xlink:href="mvst-20211231.xsd#mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrices"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfShareOptionsActivityAbstract" xlink:to="mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrices" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageGrantDateFairValueOutstanding" xlink:href="mvst-20211231.xsd#mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageGrantDateFairValueOutstanding"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfShareOptionsActivityAbstract" xlink:to="mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageGrantDateFairValueOutstanding" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualOutstanding" xlink:href="mvst-20211231.xsd#mvst_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualOutstanding"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfShareOptionsActivityAbstract" xlink:to="mvst_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualOutstanding" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfShareOptionsActivityAbstract" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceWeightedAverageExercisePriceGranted" xlink:href="mvst-20211231.xsd#mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceWeightedAverageExercisePriceGranted"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfShareOptionsActivityAbstract" xlink:to="mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceWeightedAverageExercisePriceGranted" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageGrantDateFairValueGranted" xlink:href="mvst-20211231.xsd#mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageGrantDateFairValueGranted"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfShareOptionsActivityAbstract" xlink:to="mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageGrantDateFairValueGranted" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfShareOptionsActivityAbstract" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrices" xlink:href="mvst-20211231.xsd#mvst_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrices"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfShareOptionsActivityAbstract" xlink:to="mvst_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrices" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageGrantDateFairValueForfeited" xlink:href="mvst-20211231.xsd#mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageGrantDateFairValueForfeited"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfShareOptionsActivityAbstract" xlink:to="mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageGrantDateFairValueForfeited" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOther" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOther"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfShareOptionsActivityAbstract" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOther" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceExpectedToVestAndExercisab" xlink:href="mvst-20211231.xsd#mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceExpectedToVestAndExercisab"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfShareOptionsActivityAbstract" xlink:to="mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceExpectedToVestAndExercisab" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageGrantDateFairValueExpectedToVestAndExercisable" xlink:href="mvst-20211231.xsd#mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageGrantDateFairValueExpectedToVestAndExercisable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfShareOptionsActivityAbstract" xlink:to="mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageGrantDateFairValueExpectedToVestAndExercisable" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionExercisableWeightedAverageRemainingContractualTerm" xlink:href="mvst-20211231.xsd#mvst_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionExercisableWeightedAverageRemainingContractualTerm"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfShareOptionsActivityAbstract" xlink:to="mvst_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionExercisableWeightedAverageRemainingContractualTerm" order="13" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/SchedulenonvestedsharesactivityTable">
    <loc xlink:type="locator" xlink:label="mvst_SharebasedpaymentDetailsSchedulenonvestedsharesactivityLineItems" xlink:href="mvst-20211231.xsd#mvst_SharebasedpaymentDetailsSchedulenonvestedsharesactivityLineItems"/>
    <loc xlink:type="locator" xlink:label="mvst_SharebasedpaymentDetailsSchedulenonvestedsharesactivityTable" xlink:href="mvst-20211231.xsd#mvst_SharebasedpaymentDetailsSchedulenonvestedsharesactivityTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="mvst_SharebasedpaymentDetailsSchedulenonvestedsharesactivityLineItems" xlink:to="mvst_SharebasedpaymentDetailsSchedulenonvestedsharesactivityTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AwardTypeAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AwardTypeAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_SharebasedpaymentDetailsSchedulenonvestedsharesactivityTable" xlink:to="us-gaap_AwardTypeAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_AwardTypeAxis" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_AwardTypeAxis" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_NonVestedShareUnitMember" xlink:href="mvst-20211231.xsd#mvst_NonVestedShareUnitMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="mvst_NonVestedShareUnitMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_NonVestedShareMember" xlink:href="mvst-20211231.xsd#mvst_NonVestedShareMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="mvst_NonVestedShareMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingending" xlink:href="mvst-20211231.xsd#mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingending"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsSchedulenonvestedsharesactivityLineItems" xlink:to="mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingending" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsSchedulenonvestedsharesactivityLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_NumberOfNonvestedSharesTransferToCappedNonvestedShareUnitsinDollarsPerShare" xlink:href="mvst-20211231.xsd#mvst_NumberOfNonvestedSharesTransferToCappedNonvestedShareUnitsinDollarsPerShare"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsSchedulenonvestedsharesactivityLineItems" xlink:to="mvst_NumberOfNonvestedSharesTransferToCappedNonvestedShareUnitsinDollarsPerShare" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_WeightedAverageGrantDateFairValuePerShareTransferToCappedNonvestedShareUnits" xlink:href="mvst-20211231.xsd#mvst_WeightedAverageGrantDateFairValuePerShareTransferToCappedNonvestedShareUnits"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsSchedulenonvestedsharesactivityLineItems" xlink:to="mvst_WeightedAverageGrantDateFairValuePerShareTransferToCappedNonvestedShareUnits" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumberOfNonvestedSharesForfeited" xlink:href="mvst-20211231.xsd#mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumberOfNonvestedSharesForfeited"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsSchedulenonvestedsharesactivityLineItems" xlink:to="mvst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumberOfNonvestedSharesForfeited" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_WeightedAverageGrantDateFairValuePerShareForfeited" xlink:href="mvst-20211231.xsd#mvst_WeightedAverageGrantDateFairValuePerShareForfeited"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsSchedulenonvestedsharesactivityLineItems" xlink:to="mvst_WeightedAverageGrantDateFairValuePerShareForfeited" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_NumberOfNonvestedSharesTransferNonvestedShares" xlink:href="mvst-20211231.xsd#mvst_NumberOfNonvestedSharesTransferNonvestedShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsSchedulenonvestedsharesactivityLineItems" xlink:to="mvst_NumberOfNonvestedSharesTransferNonvestedShares" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsSchedulenonvestedsharesactivityLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsSchedulenonvestedsharesactivityLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsSchedulenonvestedsharesactivityLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsSchedulenonvestedsharesactivityLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodIntrinsicValue" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodIntrinsicValue"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsSchedulenonvestedsharesactivityLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodIntrinsicValue" order="12" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofclassificationofstockbasedcompensationTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfClassificationOfStockBasedCompensationAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfClassificationOfStockBasedCompensationAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_SharebasedCompensationCostOfSales" xlink:href="mvst-20211231.xsd#mvst_SharebasedCompensationCostOfSales"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfClassificationOfStockBasedCompensationAbstract" xlink:to="mvst_SharebasedCompensationCostOfSales" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_OtherGeneralAndAdministrativeExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherGeneralAndAdministrativeExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfClassificationOfStockBasedCompensationAbstract" xlink:to="us-gaap_OtherGeneralAndAdministrativeExpense" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_OtherResearchAndDevelopmentExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherResearchAndDevelopmentExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfClassificationOfStockBasedCompensationAbstract" xlink:to="us-gaap_OtherResearchAndDevelopmentExpense" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_OtherSellingAndMarketingExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherSellingAndMarketingExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfClassificationOfStockBasedCompensationAbstract" xlink:to="us-gaap_OtherSellingAndMarketingExpense" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SharebasedCompensationConstructionInProcess" xlink:href="mvst-20211231.xsd#mvst_SharebasedCompensationConstructionInProcess"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfClassificationOfStockBasedCompensationAbstract" xlink:to="mvst_SharebasedCompensationConstructionInProcess" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_StockBasedCompensationTotal" xlink:href="mvst-20211231.xsd#mvst_StockBasedCompensationTotal"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfClassificationOfStockBasedCompensationAbstract" xlink:to="mvst_StockBasedCompensationTotal" order="5" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleoflonglivedassetsclassifiedbymajorgeographicregionsTable">
    <loc xlink:type="locator" xlink:label="mvst_SegmentInformationDetailsScheduleoflonglivedassetsclassifiedbymajorgeographicregionsLineItems" xlink:href="mvst-20211231.xsd#mvst_SegmentInformationDetailsScheduleoflonglivedassetsclassifiedbymajorgeographicregionsLineItems"/>
    <loc xlink:type="locator" xlink:label="mvst_SegmentInformationDetailsScheduleoflonglivedassetsclassifiedbymajorgeographicregionsTable" xlink:href="mvst-20211231.xsd#mvst_SegmentInformationDetailsScheduleoflonglivedassetsclassifiedbymajorgeographicregionsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="mvst_SegmentInformationDetailsScheduleoflonglivedassetsclassifiedbymajorgeographicregionsLineItems" xlink:to="mvst_SegmentInformationDetailsScheduleoflonglivedassetsclassifiedbymajorgeographicregionsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_StatementGeographicalAxis" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_StatementGeographicalAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_SegmentInformationDetailsScheduleoflonglivedassetsclassifiedbymajorgeographicregionsTable" xlink:to="srt_StatementGeographicalAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_SegmentGeographicalDomain" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_SegmentGeographicalDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_StatementGeographicalAxis" xlink:to="srt_SegmentGeographicalDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_SegmentGeographicalDomain_0" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_SegmentGeographicalDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_StatementGeographicalAxis" xlink:to="srt_SegmentGeographicalDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_PRCMember" xlink:href="mvst-20211231.xsd#mvst_PRCMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_SegmentGeographicalDomain" xlink:to="mvst_PRCMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_AsiaPacificMember" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_AsiaPacificMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_SegmentGeographicalDomain" xlink:to="srt_AsiaPacificMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="country_DE" xlink:href="https://xbrl.sec.gov/country/2021/country-2021.xsd#country_DE"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_SegmentGeographicalDomain" xlink:to="country_DE" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="country_GB" xlink:href="https://xbrl.sec.gov/country/2021/country-2021.xsd#country_GB"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_SegmentGeographicalDomain" xlink:to="country_GB" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_EuropeMember" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_EuropeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_SegmentGeographicalDomain" xlink:to="srt_EuropeMember" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="country_US" xlink:href="https://xbrl.sec.gov/country/2021/country-2021.xsd#country_US"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_SegmentGeographicalDomain" xlink:to="country_US" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NoncurrentAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NoncurrentAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SegmentInformationDetailsScheduleoflonglivedassetsclassifiedbymajorgeographicregionsLineItems" xlink:to="us-gaap_NoncurrentAssets" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_LonglivedAssetsPercentage" xlink:href="mvst-20211231.xsd#mvst_LonglivedAssetsPercentage"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SegmentInformationDetailsScheduleoflonglivedassetsclassifiedbymajorgeographicregionsLineItems" xlink:to="mvst_LonglivedAssetsPercentage" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofassetsandrevenuesmajorgeographicregionsTable">
    <loc xlink:type="locator" xlink:label="us-gaap_DisaggregationOfRevenueLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DisaggregationOfRevenueTable" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="us-gaap_DisaggregationOfRevenueLineItems" xlink:to="us-gaap_DisaggregationOfRevenueTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_StatementGeographicalAxis" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_StatementGeographicalAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="us-gaap_DisaggregationOfRevenueTable" xlink:to="srt_StatementGeographicalAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_SegmentGeographicalDomain" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_SegmentGeographicalDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_StatementGeographicalAxis" xlink:to="srt_SegmentGeographicalDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_SegmentGeographicalDomain_0" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_SegmentGeographicalDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_StatementGeographicalAxis" xlink:to="srt_SegmentGeographicalDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_PeoplesRepublicOfChinaMember" xlink:href="mvst-20211231.xsd#mvst_PeoplesRepublicOfChinaMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_SegmentGeographicalDomain" xlink:to="mvst_PeoplesRepublicOfChinaMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="country_IN" xlink:href="https://xbrl.sec.gov/country/2021/country-2021.xsd#country_IN"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_SegmentGeographicalDomain" xlink:to="country_IN" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="country_RU" xlink:href="https://xbrl.sec.gov/country/2021/country-2021.xsd#country_RU"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_SegmentGeographicalDomain" xlink:to="country_RU" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_OtherCountriesMember" xlink:href="mvst-20211231.xsd#mvst_OtherCountriesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_SegmentGeographicalDomain" xlink:to="mvst_OtherCountriesMember" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_AsiaPacificMember" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_AsiaPacificMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_SegmentGeographicalDomain" xlink:to="srt_AsiaPacificMember" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="country_GB" xlink:href="https://xbrl.sec.gov/country/2021/country-2021.xsd#country_GB"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_SegmentGeographicalDomain" xlink:to="country_GB" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_OtherCountriesOneMember" xlink:href="mvst-20211231.xsd#mvst_OtherCountriesOneMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_SegmentGeographicalDomain" xlink:to="mvst_OtherCountriesOneMember" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_EuropeMember" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_EuropeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_SegmentGeographicalDomain" xlink:to="srt_EuropeMember" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_OtherMember" xlink:href="mvst-20211231.xsd#mvst_OtherMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_SegmentGeographicalDomain" xlink:to="mvst_OtherMember" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_Revenue" xlink:href="mvst-20211231.xsd#mvst_Revenue"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_DisaggregationOfRevenueLineItems" xlink:to="mvst_Revenue" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_RevenuePercentage" xlink:href="mvst-20211231.xsd#mvst_RevenuePercentage"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_DisaggregationOfRevenueLineItems" xlink:to="mvst_RevenuePercentage" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofrelationshipwiththegroupTable">
    <loc xlink:type="locator" xlink:label="mvst_RelatedPartyBalancesandTransactionsDetailsScheduleofrelationshipwiththegroupLineItems" xlink:href="mvst-20211231.xsd#mvst_RelatedPartyBalancesandTransactionsDetailsScheduleofrelationshipwiththegroupLineItems"/>
    <loc xlink:type="locator" xlink:label="mvst_RelatedPartyBalancesandTransactionsDetailsScheduleofrelationshipwiththegroupTable" xlink:href="mvst-20211231.xsd#mvst_RelatedPartyBalancesandTransactionsDetailsScheduleofrelationshipwiththegroupTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="mvst_RelatedPartyBalancesandTransactionsDetailsScheduleofrelationshipwiththegroupLineItems" xlink:to="mvst_RelatedPartyBalancesandTransactionsDetailsScheduleofrelationshipwiththegroupTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_RelatedPartyBalancesandTransactionsDetailsScheduleofrelationshipwiththegroupTable" xlink:to="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="us-gaap_RelatedPartyDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="us-gaap_RelatedPartyDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_OchemMember" xlink:href="mvst-20211231.xsd#mvst_OchemMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyDomain" xlink:to="mvst_OchemMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_OchemateMember" xlink:href="mvst-20211231.xsd#mvst_OchemateMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyDomain" xlink:to="mvst_OchemateMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_Descriptionofrelationshipwithrelatedparty" xlink:href="mvst-20211231.xsd#mvst_Descriptionofrelationshipwithrelatedparty"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_RelatedPartyBalancesandTransactionsDetailsScheduleofrelationshipwiththegroupLineItems" xlink:to="mvst_Descriptionofrelationshipwithrelatedparty" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofrelatedpartytransactionsTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfRelatedPartyTransactionsAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfRelatedPartyTransactionsAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RevenueFromRelatedParties" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueFromRelatedParties"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfRelatedPartyTransactionsAbstract" xlink:to="us-gaap_RevenueFromRelatedParties" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofcomputationofbasicanddilutednetlosspershareTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfComputationOfBasicAndDilutedNetLossPerShareAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfComputationOfBasicAndDilutedNetLossPerShareAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_NumeratorAbstract" xlink:href="mvst-20211231.xsd#mvst_NumeratorAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfComputationOfBasicAndDilutedNetLossPerShareAbstract" xlink:to="mvst_NumeratorAbstract" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_NetIncomeLossAvailableToCommonStockholders" xlink:href="mvst-20211231.xsd#mvst_NetIncomeLossAvailableToCommonStockholders"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_NumeratorAbstract" xlink:to="mvst_NetIncomeLossAvailableToCommonStockholders" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_DenominatorAbstract" xlink:href="mvst-20211231.xsd#mvst_DenominatorAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfComputationOfBasicAndDilutedNetLossPerShareAbstract" xlink:to="mvst_DenominatorAbstract" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_DenominatorAbstract" xlink:to="us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_DenominatorAbstract" xlink:to="us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleofoutstandingwereexcludedfromthecalculationofdilutednetlossperordinaryshareTable">
    <loc xlink:type="locator" xlink:label="mvst_NetLossPerShareDetailsScheduleofoutstandingwereexcludedfromthecalculationofdilutednetlossperordinaryshareLineItems" xlink:href="mvst-20211231.xsd#mvst_NetLossPerShareDetailsScheduleofoutstandingwereexcludedfromthecalculationofdilutednetlossperordinaryshareLineItems"/>
    <loc xlink:type="locator" xlink:label="mvst_NetLossPerShareDetailsScheduleofoutstandingwereexcludedfromthecalculationofdilutednetlossperordinaryshareTable" xlink:href="mvst-20211231.xsd#mvst_NetLossPerShareDetailsScheduleofoutstandingwereexcludedfromthecalculationofdilutednetlossperordinaryshareTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="mvst_NetLossPerShareDetailsScheduleofoutstandingwereexcludedfromthecalculationofdilutednetlossperordinaryshareLineItems" xlink:to="mvst_NetLossPerShareDetailsScheduleofoutstandingwereexcludedfromthecalculationofdilutednetlossperordinaryshareTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StatementClassOfStockAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementClassOfStockAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_NetLossPerShareDetailsScheduleofoutstandingwereexcludedfromthecalculationofdilutednetlossperordinaryshareTable" xlink:to="us-gaap_StatementClassOfStockAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SharesIssuableUponConversionOfSeriesA1PreferredMember" xlink:href="mvst-20211231.xsd#mvst_SharesIssuableUponConversionOfSeriesA1PreferredMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="mvst_SharesIssuableUponConversionOfSeriesA1PreferredMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SharesIssuableUponConversionOfSeriesB1PreferredMember" xlink:href="mvst-20211231.xsd#mvst_SharesIssuableUponConversionOfSeriesB1PreferredMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="mvst_SharesIssuableUponConversionOfSeriesB1PreferredMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SharesIssuableUponConversionOfSeriesB2PreferredMember" xlink:href="mvst-20211231.xsd#mvst_SharesIssuableUponConversionOfSeriesB2PreferredMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="mvst_SharesIssuableUponConversionOfSeriesB2PreferredMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SharesIssuableUponConversionOfSeriesC1PreferredMember" xlink:href="mvst-20211231.xsd#mvst_SharesIssuableUponConversionOfSeriesC1PreferredMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="mvst_SharesIssuableUponConversionOfSeriesC1PreferredMember" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SharesIssuableUponConversionOfSeriesC2PreferredMember" xlink:href="mvst-20211231.xsd#mvst_SharesIssuableUponConversionOfSeriesC2PreferredMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="mvst_SharesIssuableUponConversionOfSeriesC2PreferredMember" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SharesIssuableUponConversionOfSeriesEELD1PreferredMember" xlink:href="mvst-20211231.xsd#mvst_SharesIssuableUponConversionOfSeriesEELD1PreferredMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="mvst_SharesIssuableUponConversionOfSeriesEELD1PreferredMember" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SharesIssuableUponConversionOfSeriesD2PreferredMember" xlink:href="mvst-20211231.xsd#mvst_SharesIssuableUponConversionOfSeriesD2PreferredMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="mvst_SharesIssuableUponConversionOfSeriesD2PreferredMember" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SharesIssuableUponExerciseOfShareOptions" xlink:href="mvst-20211231.xsd#mvst_SharesIssuableUponExerciseOfShareOptions"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_NetLossPerShareDetailsScheduleofoutstandingwereexcludedfromthecalculationofdilutednetlossperordinaryshareLineItems" xlink:to="mvst_SharesIssuableUponExerciseOfShareOptions" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SharesIssuableUponVestingOfNonvestedShares" xlink:href="mvst-20211231.xsd#mvst_SharesIssuableUponVestingOfNonvestedShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_NetLossPerShareDetailsScheduleofoutstandingwereexcludedfromthecalculationofdilutednetlossperordinaryshareLineItems" xlink:to="mvst_SharesIssuableUponVestingOfNonvestedShares" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SharesIssuableUponExerciseOfWarrants" xlink:href="mvst-20211231.xsd#mvst_SharesIssuableUponExerciseOfWarrants"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_NetLossPerShareDetailsScheduleofoutstandingwereexcludedfromthecalculationofdilutednetlossperordinaryshareLineItems" xlink:to="mvst_SharesIssuableUponExerciseOfWarrants" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SharesIssuableUponConversionOfSeries" xlink:href="mvst-20211231.xsd#mvst_SharesIssuableUponConversionOfSeries"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_NetLossPerShareDetailsScheduleofoutstandingwereexcludedfromthecalculationofdilutednetlossperordinaryshareLineItems" xlink:to="mvst_SharesIssuableUponConversionOfSeries" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SharesIssuableUponConversionOfNoncontrollingInterestsSubsidiary" xlink:href="mvst-20211231.xsd#mvst_SharesIssuableUponConversionOfNoncontrollingInterestsSubsidiary"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_NetLossPerShareDetailsScheduleofoutstandingwereexcludedfromthecalculationofdilutednetlossperordinaryshareLineItems" xlink:to="mvst_SharesIssuableUponConversionOfNoncontrollingInterestsSubsidiary" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SharesIssuableUponVestingOfEarnoutShares" xlink:href="mvst-20211231.xsd#mvst_SharesIssuableUponVestingOfEarnoutShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_NetLossPerShareDetailsScheduleofoutstandingwereexcludedfromthecalculationofdilutednetlossperordinaryshareLineItems" xlink:to="mvst_SharesIssuableUponVestingOfEarnoutShares" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SharesIssuableThatMayBeSubjectToCancellationinDollars" xlink:href="mvst-20211231.xsd#mvst_SharesIssuableThatMayBeSubjectToCancellationinDollars"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_NetLossPerShareDetailsScheduleofoutstandingwereexcludedfromthecalculationofdilutednetlossperordinaryshareLineItems" xlink:to="mvst_SharesIssuableThatMayBeSubjectToCancellationinDollars" order="7" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleoffutureminimumpaymentsunderleasecommitmentsTable">
    <loc xlink:type="locator" xlink:label="mvst_ScheduleOfFutureMinimumPaymentsUnderLeaseCommitmentsAbstract" xlink:href="mvst-20211231.xsd#mvst_ScheduleOfFutureMinimumPaymentsUnderLeaseCommitmentsAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CapitalLeasesFutureMinimumPaymentsDueCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfFutureMinimumPaymentsUnderLeaseCommitmentsAbstract" xlink:to="us-gaap_CapitalLeasesFutureMinimumPaymentsDueCurrent" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfFutureMinimumPaymentsUnderLeaseCommitmentsAbstract" xlink:to="us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfFutureMinimumPaymentsUnderLeaseCommitmentsAbstract" xlink:to="us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfFutureMinimumPaymentsUnderLeaseCommitmentsAbstract" xlink:to="us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfFutureMinimumPaymentsUnderLeaseCommitmentsAbstract" xlink:to="us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears" xlink:to="us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CapitalLeasesFutureMinimumPaymentsDue" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDue"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ScheduleOfFutureMinimumPaymentsUnderLeaseCommitmentsAbstract" xlink:to="us-gaap_CapitalLeasesFutureMinimumPaymentsDue" order="5" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleICondensedFinancialInformationofParentCompanyBalanceSheetTable">
    <loc xlink:type="locator" xlink:label="srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_CondensedBalanceSheetStatementsCaptionsLineItems"/>
    <loc xlink:type="locator" xlink:label="srt_CondensedBalanceSheetStatementTable" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_CondensedBalanceSheetStatementTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:to="srt_CondensedBalanceSheetStatementTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesAxis" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidatedEntitiesAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="srt_CondensedBalanceSheetStatementTable" xlink:to="srt_ConsolidatedEntitiesAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesDomain" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidatedEntitiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_ConsolidatedEntitiesAxis" xlink:to="srt_ConsolidatedEntitiesDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesDomain_0" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidatedEntitiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_ConsolidatedEntitiesAxis" xlink:to="srt_ConsolidatedEntitiesDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ParentCompanyMember" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ParentCompanyMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_ConsolidatedEntitiesDomain" xlink:to="srt_ParentCompanyMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AssetsCurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsCurrentAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:to="us-gaap_AssetsCurrentAbstract" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AssetsCurrentAbstract" xlink:to="us-gaap_CashAndCashEquivalentsAtCarryingValue" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AssetsCurrentAbstract" xlink:to="us-gaap_PrepaidExpenseAndOtherAssetsCurrent" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DueFromRelatedPartiesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DueFromRelatedPartiesCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AssetsCurrentAbstract" xlink:to="us-gaap_DueFromRelatedPartiesCurrent" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AssetsCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AssetsCurrentAbstract" xlink:to="us-gaap_AssetsCurrent" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentNet" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:to="us-gaap_PropertyPlantAndEquipmentNet" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_OtherAssetsNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:to="us-gaap_OtherAssetsNoncurrent" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InvestmentsAndOtherNoncurrentAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InvestmentsAndOtherNoncurrentAssets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:to="us-gaap_InvestmentsAndOtherNoncurrentAssets" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_Assets" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Assets"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:to="us-gaap_Assets" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_LiabilitiesCurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:to="us-gaap_LiabilitiesCurrentAbstract" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DueToRelatedPartiesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DueToRelatedPartiesCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_DueToRelatedPartiesCurrent" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AccruedLiabilitiesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_AccruedLiabilitiesCurrent" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_TaxesPayableCurrentAndNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TaxesPayableCurrentAndNoncurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_TaxesPayableCurrentAndNoncurrent" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_BondsPayableCurrent" xlink:href="mvst-20211231.xsd#mvst_BondsPayableCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="mvst_BondsPayableCurrent" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_LiabilitiesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_LiabilitiesCurrent" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_OtherLiabilitiesNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:to="us-gaap_OtherLiabilitiesNoncurrent" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DerivativeLiabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativeLiabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:to="us-gaap_DerivativeLiabilities" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_Liabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Liabilities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:to="us-gaap_Liabilities" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_MezzanineEquityNote18AndNote20Abstract" xlink:href="mvst-20211231.xsd#mvst_MezzanineEquityNote18AndNote20Abstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:to="mvst_MezzanineEquityNote18AndNote20Abstract" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SeriesC1ConvertibleRedeemablePreferredShares" xlink:href="mvst-20211231.xsd#mvst_SeriesC1ConvertibleRedeemablePreferredShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_MezzanineEquityNote18AndNote20Abstract" xlink:to="mvst_SeriesC1ConvertibleRedeemablePreferredShares" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SeriesC2ConvertibleRedeemablePreferredShares" xlink:href="mvst-20211231.xsd#mvst_SeriesC2ConvertibleRedeemablePreferredShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_MezzanineEquityNote18AndNote20Abstract" xlink:to="mvst_SeriesC2ConvertibleRedeemablePreferredShares" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SeriesD1ConvertibleRedeemablePreferredShares" xlink:href="mvst-20211231.xsd#mvst_SeriesD1ConvertibleRedeemablePreferredShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_MezzanineEquityNote18AndNote20Abstract" xlink:to="mvst_SeriesD1ConvertibleRedeemablePreferredShares" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_TotalMezzanineEquity" xlink:href="mvst-20211231.xsd#mvst_TotalMezzanineEquity"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_MezzanineEquityNote18AndNote20Abstract" xlink:to="mvst_TotalMezzanineEquity" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ShareholdersDeficitAbstract" xlink:href="mvst-20211231.xsd#mvst_ShareholdersDeficitAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:to="mvst_ShareholdersDeficitAbstract" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_CommonStockValue1" xlink:href="mvst-20211231.xsd#mvst_CommonStockValue1"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ShareholdersDeficitAbstract" xlink:to="mvst_CommonStockValue1" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AdditionalPaidInCapital" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdditionalPaidInCapital"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ShareholdersDeficitAbstract" xlink:to="us-gaap_AdditionalPaidInCapital" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalance" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalance"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ShareholdersDeficitAbstract" xlink:to="us-gaap_StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalance" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ShareholdersDeficitAbstract" xlink:to="us-gaap_RetainedEarningsAccumulatedDeficit" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ShareholdersDeficitAbstract" xlink:to="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StockholdersEquity" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquity"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ShareholdersDeficitAbstract" xlink:to="us-gaap_StockholdersEquity" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_LiabilitiesAndStockholderEquity" xlink:href="mvst-20211231.xsd#mvst_LiabilitiesAndStockholderEquity"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ShareholdersDeficitAbstract" xlink:to="mvst_LiabilitiesAndStockholderEquity" order="6" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleICondensedFinancialInformationofParentCompanyBalanceSheetTable_Parentheticals">
    <loc xlink:type="locator" xlink:label="srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_CondensedBalanceSheetStatementsCaptionsLineItems"/>
    <loc xlink:type="locator" xlink:label="srt_CondensedBalanceSheetStatementTable" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_CondensedBalanceSheetStatementTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:to="srt_CondensedBalanceSheetStatementTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StatementClassOfStockAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementClassOfStockAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="srt_CondensedBalanceSheetStatementTable" xlink:to="us-gaap_StatementClassOfStockAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesAxis" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidatedEntitiesAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="srt_CondensedBalanceSheetStatementTable" xlink:to="srt_ConsolidatedEntitiesAxis" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesDomain" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidatedEntitiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_ConsolidatedEntitiesAxis" xlink:to="srt_ConsolidatedEntitiesDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesDomain_0" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidatedEntitiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_ConsolidatedEntitiesAxis" xlink:to="srt_ConsolidatedEntitiesDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ParentCompanyMember" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ParentCompanyMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_ConsolidatedEntitiesDomain" xlink:to="srt_ParentCompanyMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SeriesC1ConvertibleRedeemablePreferredSharesMember" xlink:href="mvst-20211231.xsd#mvst_SeriesC1ConvertibleRedeemablePreferredSharesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="mvst_SeriesC1ConvertibleRedeemablePreferredSharesMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SeriesC2ConvertibleRedeemablePreferredShareMember" xlink:href="mvst-20211231.xsd#mvst_SeriesC2ConvertibleRedeemablePreferredShareMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="mvst_SeriesC2ConvertibleRedeemablePreferredShareMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SeriesD1ConvertibleRedeemablePreferredSharesMember" xlink:href="mvst-20211231.xsd#mvst_SeriesD1ConvertibleRedeemablePreferredSharesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="mvst_SeriesD1ConvertibleRedeemablePreferredSharesMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_RedeemablePreferredSharesParValue" xlink:href="mvst-20211231.xsd#mvst_RedeemablePreferredSharesParValue"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:to="mvst_RedeemablePreferredSharesParValue" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_RedeemablePreferredSharesAuthorized" xlink:href="mvst-20211231.xsd#mvst_RedeemablePreferredSharesAuthorized"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:to="mvst_RedeemablePreferredSharesAuthorized" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_RedeemablePreferredSharesIssued" xlink:href="mvst-20211231.xsd#mvst_RedeemablePreferredSharesIssued"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:to="mvst_RedeemablePreferredSharesIssued" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_RedeemablePreferredSharesOutstanding" xlink:href="mvst-20211231.xsd#mvst_RedeemablePreferredSharesOutstanding"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:to="mvst_RedeemablePreferredSharesOutstanding" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:to="us-gaap_CommonStockParOrStatedValuePerShare" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CommonStockSharesAuthorized" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:to="us-gaap_CommonStockSharesAuthorized" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CommonStockSharesIssued" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockSharesIssued"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:to="us-gaap_CommonStockSharesIssued" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CommonStockSharesOutstanding" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:to="us-gaap_CommonStockSharesOutstanding" order="8" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleICondensedFinancialInformationofParentCompanyStatementofOperationsTable">
    <loc xlink:type="locator" xlink:label="srt_CondensedIncomeStatementsCaptionsLineItems" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_CondensedIncomeStatementsCaptionsLineItems"/>
    <loc xlink:type="locator" xlink:label="srt_CondensedIncomeStatementTable" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_CondensedIncomeStatementTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="srt_CondensedIncomeStatementsCaptionsLineItems" xlink:to="srt_CondensedIncomeStatementTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesAxis" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidatedEntitiesAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="srt_CondensedIncomeStatementTable" xlink:to="srt_ConsolidatedEntitiesAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesDomain" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidatedEntitiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_ConsolidatedEntitiesAxis" xlink:to="srt_ConsolidatedEntitiesDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesDomain_0" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidatedEntitiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_ConsolidatedEntitiesAxis" xlink:to="srt_ConsolidatedEntitiesDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ParentCompanyMember" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ParentCompanyMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_ConsolidatedEntitiesDomain" xlink:to="srt_ParentCompanyMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_Revenues" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Revenues"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedIncomeStatementsCaptionsLineItems" xlink:to="us-gaap_Revenues" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_GrossProfit" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GrossProfit"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedIncomeStatementsCaptionsLineItems" xlink:to="us-gaap_GrossProfit" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_OperatingExpensesAbstract0" xlink:href="mvst-20211231.xsd#mvst_OperatingExpensesAbstract0"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedIncomeStatementsCaptionsLineItems" xlink:to="mvst_OperatingExpensesAbstract0" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_GeneralAndAdministrativeExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_OperatingExpensesAbstract0" xlink:to="us-gaap_GeneralAndAdministrativeExpense" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_OperatingExpenses" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingExpenses"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedIncomeStatementsCaptionsLineItems" xlink:to="us-gaap_OperatingExpenses" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SubsidyIncome" xlink:href="mvst-20211231.xsd#mvst_SubsidyIncome"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OperatingExpenses" xlink:to="mvst_SubsidyIncome" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_OperatingIncomeLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingIncomeLoss"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedIncomeStatementsCaptionsLineItems" xlink:to="us-gaap_OperatingIncomeLoss" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_OtherIncomeAndExpensesAbstract0" xlink:href="mvst-20211231.xsd#mvst_OtherIncomeAndExpensesAbstract0"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedIncomeStatementsCaptionsLineItems" xlink:to="mvst_OtherIncomeAndExpensesAbstract0" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_InterestIncome" xlink:href="mvst-20211231.xsd#mvst_InterestIncome"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_OtherIncomeAndExpensesAbstract0" xlink:to="mvst_InterestIncome" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_GainlossOnChangesInFairValueOfConvertibleNotes" xlink:href="mvst-20211231.xsd#mvst_GainlossOnChangesInFairValueOfConvertibleNotes"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_OtherIncomeAndExpensesAbstract0" xlink:to="mvst_GainlossOnChangesInFairValueOfConvertibleNotes" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_GainOnChangeInFairValueOfWarrantLiability" xlink:href="mvst-20211231.xsd#mvst_GainOnChangeInFairValueOfWarrantLiability"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_OtherIncomeAndExpensesAbstract0" xlink:to="mvst_GainOnChangeInFairValueOfWarrantLiability" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NonoperatingIncomeExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_OtherIncomeAndExpensesAbstract0" xlink:to="us-gaap_NonoperatingIncomeExpense" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedIncomeStatementsCaptionsLineItems" xlink:to="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncomeTaxExpenseBenefit" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:to="us-gaap_IncomeTaxExpenseBenefit" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_LossFromInvestmentInSubsidiariesAndVariableInterestEntities" xlink:href="mvst-20211231.xsd#mvst_LossFromInvestmentInSubsidiariesAndVariableInterestEntities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:to="mvst_LossFromInvestmentInSubsidiariesAndVariableInterestEntities" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NetIncomeLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedIncomeStatementsCaptionsLineItems" xlink:to="us-gaap_NetIncomeLoss" order="8" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleICondensedFinancialInformationofParentCompanyStatementsofComprehensiveLossTable">
    <loc xlink:type="locator" xlink:label="srt_CondensedStatementOfIncomeCaptionsLineItems" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_CondensedStatementOfIncomeCaptionsLineItems"/>
    <loc xlink:type="locator" xlink:label="srt_CondensedStatementOfComprehensiveIncomeTable" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_CondensedStatementOfComprehensiveIncomeTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="srt_CondensedStatementOfIncomeCaptionsLineItems" xlink:to="srt_CondensedStatementOfComprehensiveIncomeTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesAxis" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidatedEntitiesAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="srt_CondensedStatementOfComprehensiveIncomeTable" xlink:to="srt_ConsolidatedEntitiesAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesDomain" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidatedEntitiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_ConsolidatedEntitiesAxis" xlink:to="srt_ConsolidatedEntitiesDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesDomain_0" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidatedEntitiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_ConsolidatedEntitiesAxis" xlink:to="srt_ConsolidatedEntitiesDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ParentCompanyMember" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ParentCompanyMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_ConsolidatedEntitiesDomain" xlink:to="srt_ParentCompanyMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NetIncomeLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedStatementOfIncomeCaptionsLineItems" xlink:to="us-gaap_NetIncomeLoss" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_OtherComprehensiveLossNetOfTaxOfNilAbstract" xlink:href="mvst-20211231.xsd#mvst_OtherComprehensiveLossNetOfTaxOfNilAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedStatementOfIncomeCaptionsLineItems" xlink:to="mvst_OtherComprehensiveLossNetOfTaxOfNilAbstract" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_OtherComprehensiveLossNetOfTaxOfNilAbstract" xlink:to="us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_OtherComprehensiveLossNetOfTaxOfNilAbstract" xlink:to="us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ScheduleICondensedFinancialInformationofParentCompanyStatementsofCashFlowsTable">
    <loc xlink:type="locator" xlink:label="srt_CondensedCashFlowStatementsCaptionsLineItems" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_CondensedCashFlowStatementsCaptionsLineItems"/>
    <loc xlink:type="locator" xlink:label="srt_CondensedCashFlowStatementTable" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_CondensedCashFlowStatementTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="srt_CondensedCashFlowStatementsCaptionsLineItems" xlink:to="srt_CondensedCashFlowStatementTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesAxis" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidatedEntitiesAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="srt_CondensedCashFlowStatementTable" xlink:to="srt_ConsolidatedEntitiesAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesDomain" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidatedEntitiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_ConsolidatedEntitiesAxis" xlink:to="srt_ConsolidatedEntitiesDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesDomain_0" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidatedEntitiesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_ConsolidatedEntitiesAxis" xlink:to="srt_ConsolidatedEntitiesDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ParentCompanyMember" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ParentCompanyMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_ConsolidatedEntitiesDomain" xlink:to="srt_ParentCompanyMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedCashFlowStatementsCaptionsLineItems" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_CashFlowsFromInvestingActivitiesAbstract" xlink:href="mvst-20211231.xsd#mvst_CashFlowsFromInvestingActivitiesAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedCashFlowStatementsCaptionsLineItems" xlink:to="mvst_CashFlowsFromInvestingActivitiesAbstract" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_CashFlowsFromInvestingActivitiesAbstract" xlink:to="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PaymentsToAcquireInvestments" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsToAcquireInvestments"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_CashFlowsFromInvestingActivitiesAbstract" xlink:to="us-gaap_PaymentsToAcquireInvestments" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedCashFlowStatementsCaptionsLineItems" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivities" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_CashFlowsFromFinancingActivitiesAbstract" xlink:href="mvst-20211231.xsd#mvst_CashFlowsFromFinancingActivitiesAbstract"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedCashFlowStatementsCaptionsLineItems" xlink:to="mvst_CashFlowsFromFinancingActivitiesAbstract" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_CashReceivedFromTheTrustAccountUponMergerNetOfTransactionCostsNote3" xlink:href="mvst-20211231.xsd#mvst_CashReceivedFromTheTrustAccountUponMergerNetOfTransactionCostsNote3"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_CashFlowsFromFinancingActivitiesAbstract" xlink:to="mvst_CashReceivedFromTheTrustAccountUponMergerNetOfTransactionCostsNote3" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_CashReceivedFromPrivateInvestmentInPublicEquityPIPEInvestorsUponMerger" xlink:href="mvst-20211231.xsd#mvst_CashReceivedFromPrivateInvestmentInPublicEquityPIPEInvestorsUponMerger"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_CashFlowsFromFinancingActivitiesAbstract" xlink:to="mvst_CashReceivedFromPrivateInvestmentInPublicEquityPIPEInvestorsUponMerger" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_IssuanceOfBridgeNotes" xlink:href="mvst-20211231.xsd#mvst_IssuanceOfBridgeNotes"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_CashFlowsFromFinancingActivitiesAbstract" xlink:to="mvst_IssuanceOfBridgeNotes" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ProceedsFromPaymentsToMinorityShareholders" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromPaymentsToMinorityShareholders"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_CashFlowsFromFinancingActivitiesAbstract" xlink:to="us-gaap_ProceedsFromPaymentsToMinorityShareholders" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedCashFlowStatementsCaptionsLineItems" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivities" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedCashFlowStatementsCaptionsLineItems" xlink:to="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_CondensedCashFlowStatementsCaptionsLineItems" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" order="7" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/SignificantAccountingPoliciesDetails">
    <loc xlink:type="locator" xlink:label="mvst_SignificantAccountingPoliciesDetailsLineItems" xlink:href="mvst-20211231.xsd#mvst_SignificantAccountingPoliciesDetailsLineItems"/>
    <loc xlink:type="locator" xlink:label="mvst_SignificantAccountingPoliciesDetailsTable" xlink:href="mvst-20211231.xsd#mvst_SignificantAccountingPoliciesDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="mvst_SignificantAccountingPoliciesDetailsLineItems" xlink:to="mvst_SignificantAccountingPoliciesDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_RangeAxis" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_SignificantAccountingPoliciesDetailsTable" xlink:to="srt_RangeAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_RangeMember" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_RangeAxis" xlink:to="srt_RangeMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_RangeMember_0" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_RangeAxis" xlink:to="srt_RangeMember_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AwardTypeAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AwardTypeAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_SignificantAccountingPoliciesDetailsTable" xlink:to="us-gaap_AwardTypeAxis" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_AwardTypeAxis" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_AwardTypeAxis" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ProductOrServiceAxis" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ProductOrServiceAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_SignificantAccountingPoliciesDetailsTable" xlink:to="srt_ProductOrServiceAxis" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ProductsAndServicesDomain" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ProductsAndServicesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_ProductOrServiceAxis" xlink:to="srt_ProductsAndServicesDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ProductsAndServicesDomain_0" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ProductsAndServicesDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_ProductOrServiceAxis" xlink:to="srt_ProductsAndServicesDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_MaximumMember" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MaximumMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_RangeMember" xlink:to="srt_MaximumMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_CustomersMember" xlink:href="mvst-20211231.xsd#mvst_CustomersMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="mvst_CustomersMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_DepositMember" xlink:href="mvst-20211231.xsd#mvst_DepositMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="mvst_DepositMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_RevenueFromProductsMember" xlink:href="mvst-20211231.xsd#mvst_RevenueFromProductsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_ProductsAndServicesDomain" xlink:to="mvst_RevenueFromProductsMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ServiceMember" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ServiceMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_ProductsAndServicesDomain" xlink:to="us-gaap_ServiceMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_GroupToPledgeNotesReceivedPercentage" xlink:href="mvst-20211231.xsd#mvst_GroupToPledgeNotesReceivedPercentage"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SignificantAccountingPoliciesDetailsLineItems" xlink:to="mvst_GroupToPledgeNotesReceivedPercentage" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_DepositOfTheFaceRate" xlink:href="mvst-20211231.xsd#mvst_DepositOfTheFaceRate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SignificantAccountingPoliciesDetailsLineItems" xlink:to="mvst_DepositOfTheFaceRate" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_BalanceOfNotesReceivable" xlink:href="mvst-20211231.xsd#mvst_BalanceOfNotesReceivable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SignificantAccountingPoliciesDetailsLineItems" xlink:to="mvst_BalanceOfNotesReceivable" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InterestIncomeOther" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestIncomeOther"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SignificantAccountingPoliciesDetailsLineItems" xlink:to="us-gaap_InterestIncomeOther" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_EstimatedUsefulLifeTerm" xlink:href="mvst-20211231.xsd#mvst_EstimatedUsefulLifeTerm"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SignificantAccountingPoliciesDetailsLineItems" xlink:to="mvst_EstimatedUsefulLifeTerm" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ImpairmentOfLongLivedAssetsHeldForUse" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ImpairmentOfLongLivedAssetsHeldForUse"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SignificantAccountingPoliciesDetailsLineItems" xlink:to="us-gaap_ImpairmentOfLongLivedAssetsHeldForUse" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_RevenueRelatedToContractBalance" xlink:href="mvst-20211231.xsd#mvst_RevenueRelatedToContractBalance"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SignificantAccountingPoliciesDetailsLineItems" xlink:to="mvst_RevenueRelatedToContractBalance" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ValueAddedTaxRatePercentage" xlink:href="mvst-20211231.xsd#mvst_ValueAddedTaxRatePercentage"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SignificantAccountingPoliciesDetailsLineItems" xlink:to="mvst_ValueAddedTaxRatePercentage" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AmortizedDeferredSubsidy" xlink:href="mvst-20211231.xsd#mvst_AmortizedDeferredSubsidy"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SignificantAccountingPoliciesDetailsLineItems" xlink:to="mvst_AmortizedDeferredSubsidy" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_DeferredSubsidyIncome" xlink:href="mvst-20211231.xsd#mvst_DeferredSubsidyIncome"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SignificantAccountingPoliciesDetailsLineItems" xlink:to="mvst_DeferredSubsidyIncome" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_DeferredNonCurrentPortion" xlink:href="mvst-20211231.xsd#mvst_DeferredNonCurrentPortion"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SignificantAccountingPoliciesDetailsLineItems" xlink:to="mvst_DeferredNonCurrentPortion" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AggregateAmount" xlink:href="mvst-20211231.xsd#mvst_AggregateAmount"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SignificantAccountingPoliciesDetailsLineItems" xlink:to="mvst_AggregateAmount" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_NetRevenuesPercentage" xlink:href="mvst-20211231.xsd#mvst_NetRevenuesPercentage"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SignificantAccountingPoliciesDetailsLineItems" xlink:to="mvst_NetRevenuesPercentage" order="13" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_PercentageOfAccountsReceivable" xlink:href="mvst-20211231.xsd#mvst_PercentageOfAccountsReceivable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SignificantAccountingPoliciesDetailsLineItems" xlink:to="mvst_PercentageOfAccountsReceivable" order="14" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_PurchasePercentage" xlink:href="mvst-20211231.xsd#mvst_PurchasePercentage"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SignificantAccountingPoliciesDetailsLineItems" xlink:to="mvst_PurchasePercentage" order="15" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_adjustmentToRetainedEarningsAndAccumulateDeficit" xlink:href="mvst-20211231.xsd#mvst_adjustmentToRetainedEarningsAndAccumulateDeficit"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SignificantAccountingPoliciesDetailsLineItems" xlink:to="mvst_adjustmentToRetainedEarningsAndAccumulateDeficit" order="16" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ReverseRecapitalizationDetails">
    <loc xlink:type="locator" xlink:label="mvst_ReverseRecapitalizationDetailsLineItems" xlink:href="mvst-20211231.xsd#mvst_ReverseRecapitalizationDetailsLineItems"/>
    <loc xlink:type="locator" xlink:label="mvst_ReverseRecapitalizationDetailsTable" xlink:href="mvst-20211231.xsd#mvst_ReverseRecapitalizationDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="mvst_ReverseRecapitalizationDetailsLineItems" xlink:to="mvst_ReverseRecapitalizationDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StatementEquityComponentsAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_ReverseRecapitalizationDetailsTable" xlink:to="us-gaap_StatementEquityComponentsAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_EquityComponentDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityComponentDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_StatementEquityComponentsAxis" xlink:to="us-gaap_EquityComponentDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_EquityComponentDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityComponentDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_StatementEquityComponentsAxis" xlink:to="us-gaap_EquityComponentDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_ReverseRecapitalizationDetailsTable" xlink:to="us-gaap_RelatedPartyTransactionAxis" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_RelatedPartyTransactionAxis" xlink:to="us-gaap_RelatedPartyTransactionDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_RelatedPartyTransactionAxis" xlink:to="us-gaap_RelatedPartyTransactionDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_OwnershipAxis" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_OwnershipAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_ReverseRecapitalizationDetailsTable" xlink:to="srt_OwnershipAxis" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_OwnershipDomain" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_OwnershipDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_OwnershipAxis" xlink:to="srt_OwnershipDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_OwnershipDomain_0" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_OwnershipDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_OwnershipAxis" xlink:to="srt_OwnershipDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_BridgeNotesMember" xlink:href="mvst-20211231.xsd#mvst_BridgeNotesMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionDomain" xlink:to="mvst_BridgeNotesMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_PIPEInvestorsMember" xlink:href="mvst-20211231.xsd#mvst_PIPEInvestorsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionDomain" xlink:to="mvst_PIPEInvestorsMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SponsorMember" xlink:href="mvst-20211231.xsd#mvst_SponsorMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionDomain" xlink:to="mvst_SponsorMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_TuscanPublicStockholdersMember" xlink:href="mvst-20211231.xsd#mvst_TuscanPublicStockholdersMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionDomain" xlink:to="mvst_TuscanPublicStockholdersMember" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CommonStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_EquityComponentDomain" xlink:to="us-gaap_CommonStockMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_MicrovastIncMember" xlink:href="mvst-20211231.xsd#mvst_MicrovastIncMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_OwnershipDomain" xlink:to="mvst_MicrovastIncMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_OtherNotesPayable" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherNotesPayable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ReverseRecapitalizationDetailsLineItems" xlink:to="us-gaap_OtherNotesPayable" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_SharesIssued" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharesIssued"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ReverseRecapitalizationDetailsLineItems" xlink:to="us-gaap_SharesIssued" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_PurchasePricePerShare" xlink:href="mvst-20211231.xsd#mvst_PurchasePricePerShare"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ReverseRecapitalizationDetailsLineItems" xlink:to="mvst_PurchasePricePerShare" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PartnersCapitalAccountUnitsSoldInPrivatePlacement" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PartnersCapitalAccountUnitsSoldInPrivatePlacement"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ReverseRecapitalizationDetailsLineItems" xlink:to="us-gaap_PartnersCapitalAccountUnitsSoldInPrivatePlacement" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ConvertibleNotesPayable" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConvertibleNotesPayable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ReverseRecapitalizationDetailsLineItems" xlink:to="us-gaap_ConvertibleNotesPayable" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ReverseRecapitalizationDetailsLineItems" xlink:to="us-gaap_PaymentsForRepurchaseOfCommonStock" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_WarrantExercisePriceIncrease" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WarrantExercisePriceIncrease"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ReverseRecapitalizationDetailsLineItems" xlink:to="us-gaap_WarrantExercisePriceIncrease" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AdditionalSharesOfCommonStock" xlink:href="mvst-20211231.xsd#mvst_AdditionalSharesOfCommonStock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ReverseRecapitalizationDetailsLineItems" xlink:to="mvst_AdditionalSharesOfCommonStock" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_WeightedAveragePricePerTheCommonStock" xlink:href="mvst-20211231.xsd#mvst_WeightedAveragePricePerTheCommonStock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ReverseRecapitalizationDetailsLineItems" xlink:to="mvst_WeightedAveragePricePerTheCommonStock" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_CommonStockReceivingAPerSharePrice" xlink:href="mvst-20211231.xsd#mvst_CommonStockReceivingAPerSharePrice"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ReverseRecapitalizationDetailsLineItems" xlink:to="mvst_CommonStockReceivingAPerSharePrice" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_DescriptionOfExchangeRatio" xlink:href="mvst-20211231.xsd#mvst_DescriptionOfExchangeRatio"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ReverseRecapitalizationDetailsLineItems" xlink:to="mvst_DescriptionOfExchangeRatio" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SharesSubjectToCancellation" xlink:href="mvst-20211231.xsd#mvst_SharesSubjectToCancellation"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ReverseRecapitalizationDetailsLineItems" xlink:to="mvst_SharesSubjectToCancellation" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ProceedsFromContributionsFromParent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromContributionsFromParent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ReverseRecapitalizationDetailsLineItems" xlink:to="us-gaap_ProceedsFromContributionsFromParent" order="13" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ProceedsFromSaleOfTrustAssetsToPayExpenses" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromSaleOfTrustAssetsToPayExpenses"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ReverseRecapitalizationDetailsLineItems" xlink:to="us-gaap_ProceedsFromSaleOfTrustAssetsToPayExpenses" order="14" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StockholdersEquityPeriodIncreaseDecrease" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquityPeriodIncreaseDecrease"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ReverseRecapitalizationDetailsLineItems" xlink:to="us-gaap_StockholdersEquityPeriodIncreaseDecrease" order="15" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FinancingReceivableRevolving" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinancingReceivableRevolving"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ReverseRecapitalizationDetailsLineItems" xlink:to="us-gaap_FinancingReceivableRevolving" order="16" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_CancellationConditionDescription" xlink:href="mvst-20211231.xsd#mvst_CancellationConditionDescription"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ReverseRecapitalizationDetailsLineItems" xlink:to="mvst_CancellationConditionDescription" order="17" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_EscrowShares" xlink:href="mvst-20211231.xsd#mvst_EscrowShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_ReverseRecapitalizationDetailsLineItems" xlink:to="mvst_EscrowShares" order="18" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/InventoriesNetDetails">
    <loc xlink:type="locator" xlink:label="us-gaap_InventoryDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryDisclosureAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InventoryWriteDown" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryWriteDown"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_InventoryDisclosureAbstract" xlink:to="us-gaap_InventoryWriteDown" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/PropertyPlantandEquipmentNetDetails">
    <loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationSaleOfPropertyPlantAndEquipment1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationSaleOfPropertyPlantAndEquipment1"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentAbstract" xlink:to="us-gaap_AccumulatedDepreciationDepletionAndAmortizationSaleOfPropertyPlantAndEquipment1" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ImpairmentLossesRelatedToRealEstatePartnerships" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ImpairmentLossesRelatedToRealEstatePartnerships"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentAbstract" xlink:to="us-gaap_ImpairmentLossesRelatedToRealEstatePartnerships" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/LandUseRightsNetDetails">
    <loc xlink:type="locator" xlink:label="mvst_LandUseRightsNetAbstract" xlink:href="mvst-20211231.xsd#mvst_LandUseRightsNetAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_EstimatedUsageTermPeriod" xlink:href="mvst-20211231.xsd#mvst_EstimatedUsageTermPeriod"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_LandUseRightsNetAbstract" xlink:to="mvst_EstimatedUsageTermPeriod" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AmortizationOfFinancingCostsAndDiscounts" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AmortizationOfFinancingCostsAndDiscounts"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_LandUseRightsNetAbstract" xlink:to="us-gaap_AmortizationOfFinancingCostsAndDiscounts" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_DescriptionOfFutureAmortizationExpense" xlink:href="mvst-20211231.xsd#mvst_DescriptionOfFutureAmortizationExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_LandUseRightsNetAbstract" xlink:to="mvst_DescriptionOfFutureAmortizationExpense" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/AcquiredIntangibleAssetsNetDetails">
    <loc xlink:type="locator" xlink:label="us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_AmortizationExpense" xlink:href="mvst-20211231.xsd#mvst_AmortizationExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:to="mvst_AmortizationExpense" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/ProductWarrantyDetails">
    <loc xlink:type="locator" xlink:label="us-gaap_ProductWarrantiesDisclosuresAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProductWarrantiesDisclosuresAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_EstimateAccrualAmount" xlink:href="mvst-20211231.xsd#mvst_EstimateAccrualAmount"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ProductWarrantiesDisclosuresAbstract" xlink:to="mvst_EstimateAccrualAmount" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/BankBorrowingsDetails">
    <loc xlink:type="locator" xlink:label="mvst_BankBorrowingsAbstract" xlink:href="mvst-20211231.xsd#mvst_BankBorrowingsAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_DebtInstrumentTermDescription" xlink:href="mvst-20211231.xsd#mvst_DebtInstrumentTermDescription"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BankBorrowingsAbstract" xlink:to="mvst_DebtInstrumentTermDescription" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_DebtInstrumentFaceAmount1" xlink:href="mvst-20211231.xsd#mvst_DebtInstrumentFaceAmount1"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BankBorrowingsAbstract" xlink:to="mvst_DebtInstrumentFaceAmount1" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_BankFacilityAgreementDescription" xlink:href="mvst-20211231.xsd#mvst_BankFacilityAgreementDescription"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BankBorrowingsAbstract" xlink:to="mvst_BankFacilityAgreementDescription" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/BondsPayableDetails">
    <loc xlink:type="locator" xlink:label="mvst_BondsPayableDetailsLineItems" xlink:href="mvst-20211231.xsd#mvst_BondsPayableDetailsLineItems"/>
    <loc xlink:type="locator" xlink:label="mvst_BondsPayableDetailsTable" xlink:href="mvst-20211231.xsd#mvst_BondsPayableDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="mvst_BondsPayableDetailsLineItems" xlink:to="mvst_BondsPayableDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_StatementScenarioAxis" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_StatementScenarioAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_BondsPayableDetailsTable" xlink:to="srt_StatementScenarioAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ScenarioUnspecifiedDomain" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ScenarioUnspecifiedDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_StatementScenarioAxis" xlink:to="srt_ScenarioUnspecifiedDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ScenarioUnspecifiedDomain_0" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ScenarioUnspecifiedDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_StatementScenarioAxis" xlink:to="srt_ScenarioUnspecifiedDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_BondsPayableDetailsTable" xlink:to="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="us-gaap_RelatedPartyDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="us-gaap_RelatedPartyDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_HuzhouSaiyuanMember" xlink:href="mvst-20211231.xsd#mvst_HuzhouSaiyuanMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyDomain" xlink:to="mvst_HuzhouSaiyuanMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ThirdPartyInvestorsMember" xlink:href="mvst-20211231.xsd#mvst_ThirdPartyInvestorsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyDomain" xlink:to="mvst_ThirdPartyInvestorsMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_FirstTrancheMember" xlink:href="mvst-20211231.xsd#mvst_FirstTrancheMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyDomain" xlink:to="mvst_FirstTrancheMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SecondTrancheMember" xlink:href="mvst-20211231.xsd#mvst_SecondTrancheMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyDomain" xlink:to="mvst_SecondTrancheMember" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ScenarioForecastMember" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ScenarioForecastMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_ScenarioUnspecifiedDomain" xlink:to="srt_ScenarioForecastMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_BondLoan" xlink:href="mvst-20211231.xsd#mvst_BondLoan"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BondsPayableDetailsLineItems" xlink:to="mvst_BondLoan" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ConvertedFromTheExistingNoninterestbearingLoan" xlink:href="mvst-20211231.xsd#mvst_ConvertedFromTheExistingNoninterestbearingLoan"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BondsPayableDetailsLineItems" xlink:to="mvst_ConvertedFromTheExistingNoninterestbearingLoan" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_EquityHoldingPledgedPercentage" xlink:href="mvst-20211231.xsd#mvst_EquityHoldingPledgedPercentage"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BondsPayableDetailsLineItems" xlink:to="mvst_EquityHoldingPledgedPercentage" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_PreviousConvertedBond" xlink:href="mvst-20211231.xsd#mvst_PreviousConvertedBond"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BondsPayableDetailsLineItems" xlink:to="mvst_PreviousConvertedBond" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentCovenantDescription" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentCovenantDescription"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BondsPayableDetailsLineItems" xlink:to="us-gaap_DebtInstrumentCovenantDescription" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentFaceAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BondsPayableDetailsLineItems" xlink:to="us-gaap_DebtInstrumentFaceAmount" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AggregateAmountOfBondLoan" xlink:href="mvst-20211231.xsd#mvst_AggregateAmountOfBondLoan"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BondsPayableDetailsLineItems" xlink:to="mvst_AggregateAmountOfBondLoan" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SubscribedByBondHolders" xlink:href="mvst-20211231.xsd#mvst_SubscribedByBondHolders"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BondsPayableDetailsLineItems" xlink:to="mvst_SubscribedByBondHolders" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncrementalCommonSharesAttributableToConversionOfPreferredStock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToConversionOfPreferredStock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BondsPayableDetailsLineItems" xlink:to="us-gaap_IncrementalCommonSharesAttributableToConversionOfPreferredStock" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_PurchaseAgreementToIssueConvertiblePromissoryNoteAmount" xlink:href="mvst-20211231.xsd#mvst_PurchaseAgreementToIssueConvertiblePromissoryNoteAmount"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BondsPayableDetailsLineItems" xlink:to="mvst_PurchaseAgreementToIssueConvertiblePromissoryNoteAmount" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_InterestRate" xlink:href="mvst-20211231.xsd#mvst_InterestRate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BondsPayableDetailsLineItems" xlink:to="mvst_InterestRate" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ConvertibleNotesPayable" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConvertibleNotesPayable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BondsPayableDetailsLineItems" xlink:to="us-gaap_ConvertibleNotesPayable" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_DiscountedRate" xlink:href="mvst-20211231.xsd#mvst_DiscountedRate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BondsPayableDetailsLineItems" xlink:to="mvst_DiscountedRate" order="13" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ChangesInFairValueGainLoss" xlink:href="mvst-20211231.xsd#mvst_ChangesInFairValueGainLoss"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BondsPayableDetailsLineItems" xlink:to="mvst_ChangesInFairValueGainLoss" order="14" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ConversionOfStockSharesConverted1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConversionOfStockSharesConverted1"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_BondsPayableDetailsLineItems" xlink:to="us-gaap_ConversionOfStockSharesConverted1" order="15" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/WarrantsDetails">
    <loc xlink:type="locator" xlink:label="mvst_WarrantsDetailsLineItems" xlink:href="mvst-20211231.xsd#mvst_WarrantsDetailsLineItems"/>
    <loc xlink:type="locator" xlink:label="mvst_WarrantsDetailsTable" xlink:href="mvst-20211231.xsd#mvst_WarrantsDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="mvst_WarrantsDetailsLineItems" xlink:to="mvst_WarrantsDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_WarrantsDetailsTable" xlink:to="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="us-gaap_RelatedPartyDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="us-gaap_RelatedPartyDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_SubsidiarySaleOfStockAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_WarrantsDetailsTable" xlink:to="us-gaap_SubsidiarySaleOfStockAxis" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_SaleOfStockNameOfTransactionDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_SubsidiarySaleOfStockAxis" xlink:to="us-gaap_SaleOfStockNameOfTransactionDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_SaleOfStockNameOfTransactionDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_SubsidiarySaleOfStockAxis" xlink:to="us-gaap_SaleOfStockNameOfTransactionDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_EarlyBirdCapitalIncMember" xlink:href="mvst-20211231.xsd#mvst_EarlyBirdCapitalIncMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyDomain" xlink:to="mvst_EarlyBirdCapitalIncMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_PublicWarrantsMember" xlink:href="mvst-20211231.xsd#mvst_PublicWarrantsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SaleOfStockNameOfTransactionDomain" xlink:to="mvst_PublicWarrantsMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PrivatePlacementMember" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PrivatePlacementMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SaleOfStockNameOfTransactionDomain" xlink:to="us-gaap_PrivatePlacementMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_WarrantsDetailsLineItems" xlink:to="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_SaleOfStockPricePerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SaleOfStockPricePerShare"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_WarrantsDetailsLineItems" xlink:to="us-gaap_SaleOfStockPricePerShare" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_WarrantTerm" xlink:href="mvst-20211231.xsd#mvst_WarrantTerm"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_WarrantsDetailsLineItems" xlink:to="mvst_WarrantTerm" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ClassOfWarrantOrRightReasonForIssuingToNonemployees" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightReasonForIssuingToNonemployees"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_WarrantsDetailsLineItems" xlink:to="us-gaap_ClassOfWarrantOrRightReasonForIssuingToNonemployees" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_FairValueOfWarrants" xlink:href="mvst-20211231.xsd#mvst_FairValueOfWarrants"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_WarrantsDetailsLineItems" xlink:to="mvst_FairValueOfWarrants" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_LiabilityForFuturePolicyBenefitRemeasurementGainLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilityForFuturePolicyBenefitRemeasurementGainLoss"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_WarrantsDetailsLineItems" xlink:to="us-gaap_LiabilityForFuturePolicyBenefitRemeasurementGainLoss" order="6" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/FairValueMeasurementDetails">
    <loc xlink:type="locator" xlink:label="us-gaap_FairValueDisclosuresAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_FairValueMeasurementPercentage" xlink:href="mvst-20211231.xsd#mvst_FairValueMeasurementPercentage"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_FairValueDisclosuresAbstract" xlink:to="mvst_FairValueMeasurementPercentage" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/IncomeTaxesDetails">
    <loc xlink:type="locator" xlink:label="mvst_IncomeTaxesDetailsLineItems" xlink:href="mvst-20211231.xsd#mvst_IncomeTaxesDetailsLineItems"/>
    <loc xlink:type="locator" xlink:label="mvst_IncomeTaxesDetailsTable" xlink:href="mvst-20211231.xsd#mvst_IncomeTaxesDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="mvst_IncomeTaxesDetailsLineItems" xlink:to="mvst_IncomeTaxesDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_IncomeTaxesDetailsTable" xlink:to="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="us-gaap_RelatedPartyDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="us-gaap_RelatedPartyDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_StatementGeographicalAxis" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_StatementGeographicalAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_IncomeTaxesDetailsTable" xlink:to="srt_StatementGeographicalAxis" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_SegmentGeographicalDomain" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_SegmentGeographicalDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_StatementGeographicalAxis" xlink:to="srt_SegmentGeographicalDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_SegmentGeographicalDomain_0" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_SegmentGeographicalDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_StatementGeographicalAxis" xlink:to="srt_SegmentGeographicalDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_HongweiMember" xlink:href="mvst-20211231.xsd#mvst_HongweiMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyDomain" xlink:to="mvst_HongweiMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_PeoplesRepublicOfChinaMember" xlink:href="mvst-20211231.xsd#mvst_PeoplesRepublicOfChinaMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_SegmentGeographicalDomain" xlink:to="mvst_PeoplesRepublicOfChinaMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="country_GB" xlink:href="https://xbrl.sec.gov/country/2021/country-2021.xsd#country_GB"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_SegmentGeographicalDomain" xlink:to="country_GB" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="country_DE" xlink:href="https://xbrl.sec.gov/country/2021/country-2021.xsd#country_DE"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_SegmentGeographicalDomain" xlink:to="country_DE" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncomeTaxExaminationDescription" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxExaminationDescription"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_IncomeTaxesDetailsLineItems" xlink:to="us-gaap_IncomeTaxExaminationDescription" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationTaxHolidays" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationTaxHolidays"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_IncomeTaxesDetailsLineItems" xlink:to="us-gaap_EffectiveIncomeTaxRateReconciliationTaxHolidays" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationEquityInEarningsLossesOfUnconsolidatedSubsidiary" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationEquityInEarningsLossesOfUnconsolidatedSubsidiary"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_IncomeTaxesDetailsLineItems" xlink:to="us-gaap_EffectiveIncomeTaxRateReconciliationEquityInEarningsLossesOfUnconsolidatedSubsidiary" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_TaxRatesSubstantiallyLower" xlink:href="mvst-20211231.xsd#mvst_TaxRatesSubstantiallyLower"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_IncomeTaxesDetailsLineItems" xlink:to="mvst_TaxRatesSubstantiallyLower" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_EffectiveIncomeTaxRateContinuingOperations" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_IncomeTaxesDetailsLineItems" xlink:to="us-gaap_EffectiveIncomeTaxRateContinuingOperations" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_WithholdingIncomeTaxPercentage" xlink:href="mvst-20211231.xsd#mvst_WithholdingIncomeTaxPercentage"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_IncomeTaxesDetailsLineItems" xlink:to="mvst_WithholdingIncomeTaxPercentage" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncomeTaxExpenseBenefit" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_IncomeTaxesDetailsLineItems" xlink:to="us-gaap_IncomeTaxExpenseBenefit" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_IncomeTaxesDetailsLineItems" xlink:to="us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_OperatingLossCarryforwards" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLossCarryforwards"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_IncomeTaxesDetailsLineItems" xlink:to="us-gaap_OperatingLossCarryforwards" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_RemainingOperatingLoss" xlink:href="mvst-20211231.xsd#mvst_RemainingOperatingLoss"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_IncomeTaxesDetailsLineItems" xlink:to="mvst_RemainingOperatingLoss" order="10" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/NoncontrollingInterestsDetails">
    <loc xlink:type="locator" xlink:label="us-gaap_NoncontrollingInterestAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NoncontrollingInterestAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_noncontrollingInterestPercentage" xlink:href="mvst-20211231.xsd#mvst_noncontrollingInterestPercentage"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NoncontrollingInterestAbstract" xlink:to="mvst_noncontrollingInterestPercentage" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ProceedsFromMinorityShareholders" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromMinorityShareholders"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NoncontrollingInterestAbstract" xlink:to="us-gaap_ProceedsFromMinorityShareholders" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_RedemptionOfNoncontrolingEquityInterestPercentage" xlink:href="mvst-20211231.xsd#mvst_RedemptionOfNoncontrolingEquityInterestPercentage"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NoncontrollingInterestAbstract" xlink:to="mvst_RedemptionOfNoncontrolingEquityInterestPercentage" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SimpleAnnualInterest" xlink:href="mvst-20211231.xsd#mvst_SimpleAnnualInterest"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NoncontrollingInterestAbstract" xlink:to="mvst_SimpleAnnualInterest" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_PaymentsToExitingInvestors" xlink:href="mvst-20211231.xsd#mvst_PaymentsToExitingInvestors"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NoncontrollingInterestAbstract" xlink:to="mvst_PaymentsToExitingInvestors" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ConvertibleOfCommonShares" xlink:href="mvst-20211231.xsd#mvst_ConvertibleOfCommonShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NoncontrollingInterestAbstract" xlink:to="mvst_ConvertibleOfCommonShares" order="5" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/CommonStockDetails">
    <loc xlink:type="locator" xlink:label="mvst_CommonStockDetailsLineItems" xlink:href="mvst-20211231.xsd#mvst_CommonStockDetailsLineItems"/>
    <loc xlink:type="locator" xlink:label="mvst_CommonStockDetailsTable" xlink:href="mvst-20211231.xsd#mvst_CommonStockDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="mvst_CommonStockDetailsLineItems" xlink:to="mvst_CommonStockDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_CommonStockDetailsTable" xlink:to="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="us-gaap_RelatedPartyDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="us-gaap_RelatedPartyDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_MergerMember" xlink:href="mvst-20211231.xsd#mvst_MergerMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyDomain" xlink:to="mvst_MergerMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_TemporaryEquitySharesAuthorized" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TemporaryEquitySharesAuthorized"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_CommonStockDetailsLineItems" xlink:to="us-gaap_TemporaryEquitySharesAuthorized" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_TemporaryEquityParOrStatedValuePerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TemporaryEquityParOrStatedValuePerShare"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_CommonStockDetailsLineItems" xlink:to="us-gaap_TemporaryEquityParOrStatedValuePerShare" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_DesignatedAsCommonStockShares" xlink:href="mvst-20211231.xsd#mvst_DesignatedAsCommonStockShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_CommonStockDetailsLineItems" xlink:to="mvst_DesignatedAsCommonStockShares" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ProceedsFromIssuanceOfRedeemableConvertiblePreferredStock" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromIssuanceOfRedeemableConvertiblePreferredStock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_CommonStockDetailsLineItems" xlink:to="us-gaap_ProceedsFromIssuanceOfRedeemableConvertiblePreferredStock" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_CommonStockShareIssued" xlink:href="mvst-20211231.xsd#mvst_CommonStockShareIssued"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_CommonStockDetailsLineItems" xlink:to="mvst_CommonStockShareIssued" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CommonStockVotingRights" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockVotingRights"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_CommonStockDetailsLineItems" xlink:to="us-gaap_CommonStockVotingRights" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_MergerAgreementDescription" xlink:href="mvst-20211231.xsd#mvst_MergerAgreementDescription"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_CommonStockDetailsLineItems" xlink:to="mvst_MergerAgreementDescription" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_CommonStockShareOutstanding" xlink:href="mvst-20211231.xsd#mvst_CommonStockShareOutstanding"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_CommonStockDetailsLineItems" xlink:to="mvst_CommonStockShareOutstanding" order="8" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/PreferredSharesDetails">
    <loc xlink:type="locator" xlink:label="us-gaap_PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_ExchangeRatio" xlink:href="mvst-20211231.xsd#mvst_ExchangeRatio"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="mvst_ExchangeRatio" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_FairValueAmount" xlink:href="mvst-20211231.xsd#mvst_FairValueAmount"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="mvst_FairValueAmount" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/SharebasedpaymentDetails">
    <loc xlink:type="locator" xlink:label="mvst_SharebasedpaymentDetailsLineItems" xlink:href="mvst-20211231.xsd#mvst_SharebasedpaymentDetailsLineItems"/>
    <loc xlink:type="locator" xlink:label="mvst_SharebasedpaymentDetailsTable" xlink:href="mvst-20211231.xsd#mvst_SharebasedpaymentDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="mvst_SharebasedpaymentDetailsLineItems" xlink:to="mvst_SharebasedpaymentDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StatementClassOfStockAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementClassOfStockAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_SharebasedpaymentDetailsTable" xlink:to="us-gaap_StatementClassOfStockAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AwardTypeAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AwardTypeAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_SharebasedpaymentDetailsTable" xlink:to="us-gaap_AwardTypeAxis" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_AwardTypeAxis" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_AwardTypeAxis" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RestrictedStockUnitsRSUMember" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="us-gaap_RestrictedStockUnitsRSUMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PhantomShareUnitsPSUsMember" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PhantomShareUnitsPSUsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="us-gaap_PhantomShareUnitsPSUsMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_SeriesB2PreferredMember" xlink:href="mvst-20211231.xsd#mvst_SeriesB2PreferredMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="mvst_SeriesB2PreferredMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_TotalIssuedAndOutstandingPercentage" xlink:href="mvst-20211231.xsd#mvst_TotalIssuedAndOutstandingPercentage"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsLineItems" xlink:to="mvst_TotalIssuedAndOutstandingPercentage" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_GrantedOptions" xlink:href="mvst-20211231.xsd#mvst_GrantedOptions"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsLineItems" xlink:to="mvst_GrantedOptions" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_GrantedOptionsNonvestedShares" xlink:href="mvst-20211231.xsd#mvst_GrantedOptionsNonvestedShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsLineItems" xlink:to="mvst_GrantedOptionsNonvestedShares" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ConvertedOptions" xlink:href="mvst-20211231.xsd#mvst_ConvertedOptions"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsLineItems" xlink:to="mvst_ConvertedOptions" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ConvertedOptionsNonvestedShares" xlink:href="mvst-20211231.xsd#mvst_ConvertedOptionsNonvestedShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsLineItems" xlink:to="mvst_ConvertedOptionsNonvestedShares" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentConvertibleConversionRatio1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentConvertibleConversionRatio1"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsLineItems" xlink:to="us-gaap_DebtInstrumentConvertibleConversionRatio1" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StandbyBondPurchaseCommitmentExpirationPeriod" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StandbyBondPurchaseCommitmentExpirationPeriod"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsLineItems" xlink:to="us-gaap_StandbyBondPurchaseCommitmentExpirationPeriod" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RevenueRemainingPerformanceObligationPercentage" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligationPercentage"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsLineItems" xlink:to="us-gaap_RevenueRemainingPerformanceObligationPercentage" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AggregateOfCommonStock" xlink:href="mvst-20211231.xsd#mvst_AggregateOfCommonStock"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsLineItems" xlink:to="mvst_AggregateOfCommonStock" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsLineItems" xlink:to="us-gaap_AllocatedShareBasedCompensationExpense" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StockOptionPlanExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockOptionPlanExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsLineItems" xlink:to="us-gaap_StockOptionPlanExpense" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NetAmountAtRiskByProductAndGuaranteeWeightedAveragePeriodRemaining1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetAmountAtRiskByProductAndGuaranteeWeightedAveragePeriodRemaining1"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsLineItems" xlink:to="us-gaap_NetAmountAtRiskByProductAndGuaranteeWeightedAveragePeriodRemaining1" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_AggregateIntrinsicValueOfTheShareOptions" xlink:href="mvst-20211231.xsd#mvst_AggregateIntrinsicValueOfTheShareOptions"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsLineItems" xlink:to="mvst_AggregateIntrinsicValueOfTheShareOptions" order="13" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ShareBasedCompensationExpense" xlink:href="mvst-20211231.xsd#mvst_ShareBasedCompensationExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsLineItems" xlink:to="mvst_ShareBasedCompensationExpense" order="14" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsLineItems" xlink:to="us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount" order="15" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod" order="16" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost" order="17" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_SharesIssued" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharesIssued"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsLineItems" xlink:to="us-gaap_SharesIssued" order="18" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_SaleOfStockPricePerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SaleOfStockPricePerShare"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsLineItems" xlink:to="us-gaap_SaleOfStockPricePerShare" order="19" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsLineItems" xlink:to="us-gaap_EffectiveIncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends" order="20" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_DepositLiability" xlink:href="mvst-20211231.xsd#mvst_DepositLiability"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsLineItems" xlink:to="mvst_DepositLiability" order="21" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_CommonStockHoweverShares" xlink:href="mvst-20211231.xsd#mvst_CommonStockHoweverShares"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsLineItems" xlink:to="mvst_CommonStockHoweverShares" order="22" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_DeferredCompensationArrangementWithIndividualAllocatedShareBasedCompensationExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredCompensationArrangementWithIndividualAllocatedShareBasedCompensationExpense"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SharebasedpaymentDetailsLineItems" xlink:to="us-gaap_DeferredCompensationArrangementWithIndividualAllocatedShareBasedCompensationExpense" order="23" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/MainlandChinaContributionPlanDetails">
    <loc xlink:type="locator" xlink:label="us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_EmployeeBenefitsAndShareBasedCompensation" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EmployeeBenefitsAndShareBasedCompensation"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:to="us-gaap_EmployeeBenefitsAndShareBasedCompensation" order="0" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/StatutoryReservesandRestrictedNetAssetsDetails">
    <loc xlink:type="locator" xlink:label="us-gaap_DisclosureTextBlockSupplementAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisclosureTextBlockSupplementAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_ReservePercentage" xlink:href="mvst-20211231.xsd#mvst_ReservePercentage"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_DisclosureTextBlockSupplementAbstract" xlink:to="mvst_ReservePercentage" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_RegisteredCapitalPercentage" xlink:href="mvst-20211231.xsd#mvst_RegisteredCapitalPercentage"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_DisclosureTextBlockSupplementAbstract" xlink:to="mvst_RegisteredCapitalPercentage" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_RestrictedNetAsset" xlink:href="mvst-20211231.xsd#mvst_RestrictedNetAsset"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_DisclosureTextBlockSupplementAbstract" xlink:to="mvst_RestrictedNetAsset" order="2" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/SegmentInformationDetails">
    <loc xlink:type="locator" xlink:label="us-gaap_SegmentReportingAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentReportingAbstract"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NumberOfOperatingSegments" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NumberOfOperatingSegments"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SegmentReportingAbstract" xlink:to="us-gaap_NumberOfOperatingSegments" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NumberOfReportableSegments" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NumberOfReportableSegments"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SegmentReportingAbstract" xlink:to="us-gaap_NumberOfReportableSegments" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/RelatedPartyBalancesandTransactionsDetails">
    <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract"/>
    <loc xlink:type="locator" xlink:label="mvst_LoansFromRelatedParties" xlink:href="mvst-20211231.xsd#mvst_LoansFromRelatedParties"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionsAbstract" xlink:to="mvst_LoansFromRelatedParties" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_OutstandingBalanceDueFromRelatedParty" xlink:href="mvst-20211231.xsd#mvst_OutstandingBalanceDueFromRelatedParty"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionsAbstract" xlink:to="mvst_OutstandingBalanceDueFromRelatedParty" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/CommitmentsandContingenciesDetails">
    <loc xlink:type="locator" xlink:label="mvst_CommitmentsandContingenciesDetailsLineItems" xlink:href="mvst-20211231.xsd#mvst_CommitmentsandContingenciesDetailsLineItems"/>
    <loc xlink:type="locator" xlink:label="mvst_CommitmentsandContingenciesDetailsTable" xlink:href="mvst-20211231.xsd#mvst_CommitmentsandContingenciesDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="mvst_CommitmentsandContingenciesDetailsLineItems" xlink:to="mvst_CommitmentsandContingenciesDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FairValueByLiabilityClassAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueByLiabilityClassAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_CommitmentsandContingenciesDetailsTable" xlink:to="us-gaap_FairValueByLiabilityClassAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_FairValueByLiabilityClassAxis" xlink:to="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_FairValueByLiabilityClassAxis" xlink:to="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CapitalAdditionsMember" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CapitalAdditionsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain" xlink:to="us-gaap_CapitalAdditionsMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_ShareIssued" xlink:href="mvst-20211231.xsd#mvst_ShareIssued"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_CommitmentsandContingenciesDetailsLineItems" xlink:to="mvst_ShareIssued" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_OtherEquityRemedies" xlink:href="mvst-20211231.xsd#mvst_OtherEquityRemedies"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_CommitmentsandContingenciesDetailsLineItems" xlink:to="mvst_OtherEquityRemedies" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="mvst_CapitalCommitments" xlink:href="mvst-20211231.xsd#mvst_CapitalCommitments"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_CommitmentsandContingenciesDetailsLineItems" xlink:to="mvst_CapitalCommitments" order="3" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/SubsequentEventsDetails">
    <loc xlink:type="locator" xlink:label="mvst_SubsequentEventsDetailsLineItems" xlink:href="mvst-20211231.xsd#mvst_SubsequentEventsDetailsLineItems"/>
    <loc xlink:type="locator" xlink:label="mvst_SubsequentEventsDetailsTable" xlink:href="mvst-20211231.xsd#mvst_SubsequentEventsDetailsTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="mvst_SubsequentEventsDetailsLineItems" xlink:to="mvst_SubsequentEventsDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_StatementScenarioAxis" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_StatementScenarioAxis"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="mvst_SubsequentEventsDetailsTable" xlink:to="srt_StatementScenarioAxis" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ScenarioUnspecifiedDomain" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ScenarioUnspecifiedDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_StatementScenarioAxis" xlink:to="srt_ScenarioUnspecifiedDomain" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ScenarioUnspecifiedDomain_0" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ScenarioUnspecifiedDomain"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_StatementScenarioAxis" xlink:to="srt_ScenarioUnspecifiedDomain_0" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="srt_ScenarioForecastMember" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ScenarioForecastMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_ScenarioUnspecifiedDomain" xlink:to="srt_ScenarioForecastMember" order="0" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="mvst_SubsequentEventsDetailsLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" order="1" xbrldt:closed="true"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://thcb.com/role/DocumentAndEntityInformation">
    <loc xlink:type="locator" xlink:label="dei_DocumentInformationLineItems" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentInformationLineItems"/>
    <loc xlink:type="locator" xlink:label="dei_DocumentInformationTable" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentInformationTable"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_DocumentInformationTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_EntityRegistrantName" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityRegistrantName"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_EntityRegistrantName" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_TradingSymbol" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_TradingSymbol"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_TradingSymbol" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_DocumentType" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentType"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_DocumentType" order="3" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_CurrentFiscalYearEndDate" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_CurrentFiscalYearEndDate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_CurrentFiscalYearEndDate" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_EntityCommonStockSharesOutstanding" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityCommonStockSharesOutstanding"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_EntityCommonStockSharesOutstanding" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_EntityPublicFloat" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityPublicFloat"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_EntityPublicFloat" order="6" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_AmendmentFlag" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_AmendmentFlag"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_AmendmentFlag" order="7" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_EntityCentralIndexKey" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityCentralIndexKey"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_EntityCentralIndexKey" order="8" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_EntityCurrentReportingStatus" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityCurrentReportingStatus"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_EntityCurrentReportingStatus" order="9" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_EntityVoluntaryFilers" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityVoluntaryFilers"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_EntityVoluntaryFilers" order="10" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_EntityFilerCategory" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityFilerCategory"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_EntityFilerCategory" order="11" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_EntityWellKnownSeasonedIssuer" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityWellKnownSeasonedIssuer"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_EntityWellKnownSeasonedIssuer" order="12" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_DocumentPeriodEndDate" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentPeriodEndDate"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_DocumentPeriodEndDate" order="13" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_DocumentFiscalYearFocus" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentFiscalYearFocus"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_DocumentFiscalYearFocus" order="14" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_DocumentFiscalPeriodFocus" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentFiscalPeriodFocus"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_DocumentFiscalPeriodFocus" order="15" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_EntitySmallBusiness" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntitySmallBusiness"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_EntitySmallBusiness" order="16" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_EntityEmergingGrowthCompany" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityEmergingGrowthCompany"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_EntityEmergingGrowthCompany" order="17" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_EntityShellCompany" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityShellCompany"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_EntityShellCompany" order="18" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_EntityExTransitionPeriod" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityExTransitionPeriod"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_EntityExTransitionPeriod" order="19" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_IcfrAuditorAttestationFlag" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_IcfrAuditorAttestationFlag"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_IcfrAuditorAttestationFlag" order="20" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_DocumentAnnualReport" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentAnnualReport"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_DocumentAnnualReport" order="21" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_DocumentTransitionReport" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentTransitionReport"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_DocumentTransitionReport" order="22" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_EntityFileNumber" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityFileNumber"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_EntityFileNumber" order="23" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_EntityIncorporationStateCountryCode" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityIncorporationStateCountryCode"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_EntityIncorporationStateCountryCode" order="24" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_EntityTaxIdentificationNumber" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityTaxIdentificationNumber"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_EntityTaxIdentificationNumber" order="25" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_EntityAddressAddressLine1" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressAddressLine1"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_EntityAddressAddressLine1" order="26" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_EntityAddressAddressLine2" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressAddressLine2"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_EntityAddressAddressLine2" order="27" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_EntityAddressCityOrTown" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressCityOrTown"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_EntityAddressCityOrTown" order="28" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_EntityAddressStateOrProvince" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressStateOrProvince"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_EntityAddressStateOrProvince" order="29" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_EntityAddressPostalZipCode" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressPostalZipCode"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_EntityAddressPostalZipCode" order="30" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_CityAreaCode" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_CityAreaCode"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_CityAreaCode" order="31" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_LocalPhoneNumber" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_LocalPhoneNumber"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_LocalPhoneNumber" order="32" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_Security12bTitle" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_Security12bTitle"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_Security12bTitle" order="33" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_SecurityExchangeName" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_SecurityExchangeName"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_SecurityExchangeName" order="34" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_EntityInteractiveDataCurrent" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityInteractiveDataCurrent"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_EntityInteractiveDataCurrent" order="35" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_AuditorName" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_AuditorName"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_AuditorName" order="36" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_AuditorLocation" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_AuditorLocation"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_AuditorLocation" order="37" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="dei_AuditorFirmId" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_AuditorFirmId"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_AuditorFirmId" order="38" xbrldt:closed="true"/>
  </definitionLink>
</linkbase>
