{"url_path":"/sec/cmt/10-k/2026/cover-page","section_key":"cover-page","section_title":"Cover Page","topic":"sec","document":{"doc_type":"10-K","doc_date":"2026-03-10","source_url":"https://www.sec.gov/Archives/edgar/data/1026655/0001026655-26-000009-index.html","accession_number":"0001026655-26-000009","cik":"0001026655","ticker":"CMT","issuer_name":"CORE MOLDING TECHNOLOGIES INC","edgar_url":"https://www.sec.gov/Archives/edgar/data/1026655/0001026655-26-000009-index.html","primary_entity_key":"0001026655","primary_entity_name":"CORE MOLDING TECHNOLOGIES INC"},"word_count":1563,"has_tables":true,"body_markdown":"cmt-20251231\nFY20250001026655falsehttp://fasb.org/us-gaap/2025#OtherAccruedLiabilitiesCurrenthttp://fasb.org/us-gaap/2025#OtherAccruedLiabilitiesCurrentP1YP3Y516031295iso4217:USDxbrli:sharesiso4217:USDxbrli:sharescmt:segmentcmt:reportingUnitcmt:facilitycmt:bankcmt:customerxbrli:purecmt:employeecmt:salariedEmployeecmt:hourlyEmployeecmt:plantutr:Rate00010266552025-01-012025-12-3100010266552025-06-3000010266552026-03-0900010266552025-12-3100010266552024-01-012024-12-3100010266552023-01-012023-12-310001026655us-gaap:ForeignExchangeForwardMember2025-01-012025-12-310001026655us-gaap:ForeignExchangeForwardMember2024-01-012024-12-310001026655us-gaap:ForeignExchangeForwardMember2023-01-012023-12-310001026655us-gaap:InterestRateSwapMember2025-01-012025-12-310001026655us-gaap:InterestRateSwapMember2024-01-012024-12-310001026655us-gaap:InterestRateSwapMember2023-01-012023-12-3100010266552024-12-310001026655us-gaap:CommonStockMember2022-12-310001026655us-gaap:AdditionalPaidInCapitalMember2022-12-310001026655us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-12-310001026655us-gaap:TreasuryStockCommonMember2022-12-310001026655us-gaap:RetainedEarningsMember2022-12-3100010266552022-12-310001026655us-gaap:RetainedEarningsMember2023-01-012023-12-310001026655us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-01-012023-12-310001026655us-gaap:ForeignExchangeForwardMemberus-gaap:AccumulatedOtherComprehensiveIncomeMember2023-01-012023-12-310001026655us-gaap:InterestRateSwapMemberus-gaap:AccumulatedOtherComprehensiveIncomeMember2023-01-012023-12-310001026655us-gaap:CommonStockMember2023-01-012023-12-310001026655us-gaap:TreasuryStockCommonMember2023-01-012023-12-310001026655us-gaap:AdditionalPaidInCapitalMember2023-01-012023-12-310001026655us-gaap:CommonStockMember2023-12-310001026655us-gaap:AdditionalPaidInCapitalMember2023-12-310001026655us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-12-310001026655us-gaap:TreasuryStockCommonMember2023-12-310001026655us-gaap:RetainedEarningsMember2023-12-3100010266552023-12-310001026655us-gaap:RetainedEarningsMember2024-01-012024-12-310001026655us-gaap:AccumulatedOtherComprehensiveIncomeMember2024-01-012024-12-310001026655us-gaap:ForeignExchangeForwardMemberus-gaap:AccumulatedOtherComprehensiveIncomeMember2024-01-012024-12-310001026655us-gaap:InterestRateSwapMemberus-gaap:AccumulatedOtherComprehensiveIncomeMember2024-01-012024-12-310001026655us-gaap:CommonStockMember2024-01-012024-12-310001026655us-gaap:TreasuryStockCommonMember2024-01-012024-12-310001026655us-gaap:AdditionalPaidInCapitalMember2024-01-012024-12-310001026655us-gaap:CommonStockMember2024-12-310001026655us-gaap:AdditionalPaidInCapitalMember2024-12-310001026655us-gaap:AccumulatedOtherComprehensiveIncomeMember2024-12-310001026655us-gaap:TreasuryStockCommonMember2024-12-310001026655us-gaap:RetainedEarningsMember2024-12-310001026655us-gaap:RetainedEarningsMember2025-01-012025-12-310001026655us-gaap:AccumulatedOtherComprehensiveIncomeMember2025-01-012025-12-310001026655us-gaap:InterestRateSwapMemberus-gaap:AccumulatedOtherComprehensiveIncomeMember2025-01-012025-12-310001026655us-gaap:CommonStockMember2025-01-012025-12-310001026655us-gaap:TreasuryStockCommonMember2025-01-012025-12-310001026655us-gaap:AdditionalPaidInCapitalMember2025-01-012025-12-310001026655us-gaap:CommonStockMember2025-12-310001026655us-gaap:AdditionalPaidInCapitalMember2025-12-310001026655us-gaap:AccumulatedOtherComprehensiveIncomeMember2025-12-310001026655us-gaap:TreasuryStockCommonMember2025-12-310001026655us-gaap:RetainedEarningsMember2025-12-310001026655us-gaap:ContractBasedIntangibleAssetsMember2025-01-012025-12-310001026655us-gaap:ContractBasedIntangibleAssetsMember2024-01-012024-12-310001026655us-gaap:LandImprovementsMember2025-12-310001026655srt:MinimumMemberus-gaap:BuildingAndBuildingImprovementsMember2025-12-310001026655srt:MaximumMemberus-gaap:BuildingAndBuildingImprovementsMember2025-12-310001026655srt:MinimumMemberus-gaap:MachineryAndEquipmentMember2025-12-310001026655srt:MaximumMemberus-gaap:MachineryAndEquipmentMember2025-12-310001026655srt:MinimumMemberus-gaap:ToolsDiesAndMoldsMember2025-12-310001026655srt:MaximumMemberus-gaap:ToolsDiesAndMoldsMember2025-12-310001026655cmt:FiveLargestCustomersMemberus-gaap:CustomerConcentrationRiskMemberus-gaap:SalesRevenueNetMember2025-01-012025-12-310001026655cmt:FiveLargestCustomersMemberus-gaap:CustomerConcentrationRiskMemberus-gaap:SalesRevenueNetMember2024-01-012024-12-310001026655cmt:FiveLargestCustomersMemberus-gaap:CustomerConcentrationRiskMemberus-gaap:SalesRevenueNetMember2023-01-012023-12-310001026655cmt:FiveLargestCustomersMemberus-gaap:CustomerConcentrationRiskMemberus-gaap:AccountsReceivableMember2025-01-012025-12-310001026655cmt:FiveLargestCustomersMemberus-gaap:CustomerConcentrationRiskMemberus-gaap:AccountsReceivableMember2024-01-012024-12-310001026655country:US2025-12-310001026655country:MX2025-12-310001026655country:CA2025-12-310001026655cmt:MajorPlantsLocatedInUnitedStatesCanadaAndMexicoMemberus-gaap:GeographicConcentrationRiskMemberus-gaap:WorkforceSubjectToCollectiveBargainingArrangementsMember2025-01-012025-12-310001026655country:UScmt:InternationalAssociationOfMachinistsAndAerospaceWorkersMember2025-12-310001026655country:MXcmt:SindicatoDeJornelerosYObrerosMember2025-12-310001026655country:CAcmt:UnitedFoodAndCommercialWorkersCanadaMember2025-12-310001026655country:MXcmt:SindicatoDeTrabajadoresDeLaIndustriaMetalicaYDelComercioDelEstadoDeNuevoLeonPresidenteBenitoJuarezGarciaCtmMember2025-12-310001026655cmt:ParticipatingSecuritiesMember2025-01-012025-12-310001026655cmt:ParticipatingSecuritiesMember2024-01-012024-12-310001026655cmt:ParticipatingSecuritiesMember2023-01-012023-12-310001026655us-gaap:ProductMembercmt:BrpIncorporatedMember2025-01-012025-12-310001026655us-gaap:ProductMembercmt:BrpIncorporatedMember2024-01-012024-12-310001026655us-gaap:ProductMembercmt:BrpIncorporatedMember2023-01-012023-12-310001026655us-gaap:ServiceMembercmt:BrpIncorporatedMember2025-01-012025-12-310001026655us-gaap:ServiceMembercmt:BrpIncorporatedMember2024-01-012024-12-310001026655us-gaap:ServiceMembercmt:BrpIncorporatedMember2023-01-012023-12-310001026655cmt:BrpIncorporatedMember2025-01-012025-12-310001026655cmt:BrpIncorporatedMember2024-01-012024-12-310001026655cmt:BrpIncorporatedMember2023-01-012023-12-310001026655us-gaap:ProductMembercmt:NavistarMember2025-01-012025-12-310001026655us-gaap:ProductMembercmt:NavistarMember2024-01-012024-12-310001026655us-gaap:ProductMembercmt:NavistarMember2023-01-012023-12-310001026655us-gaap:ServiceMembercmt:NavistarMember2025-01-012025-12-310001026655us-gaap:ServiceMembercmt:NavistarMember2024-01-012024-12-310001026655us-gaap:ServiceMembercmt:NavistarMember2023-01-012023-12-310001026655cmt:NavistarMember2025-01-012025-12-310001026655cmt:NavistarMember2024-01-012024-12-310001026655cmt:NavistarMember2023-01-012023-12-310001026655us-gaap:ProductMembercmt:PaccarMember2025-01-012025-12-310001026655us-gaap:ProductMembercmt:PaccarMember2024-01-012024-12-310001026655us-gaap:ProductMembercmt:PaccarMember2023-01-012023-12-310001026655us-gaap:ServiceMembercmt:PaccarMember2025-01-012025-12-310001026655us-gaap:ServiceMembercmt:PaccarMember2024-01-012024-12-310001026655us-gaap:ServiceMembercmt:PaccarMember2023-01-012023-12-310001026655cmt:PaccarMember2025-01-012025-12-310001026655cmt:PaccarMember2024-01-012024-12-310001026655cmt:PaccarMember2023-01-012023-12-310001026655us-gaap:ProductMembercmt:UniversalForestProductsMember2025-01-012025-12-310001026655us-gaap:ProductMembercmt:UniversalForestProductsMember2024-01-012024-12-310001026655us-gaap:ProductMembercmt:UniversalForestProductsMember2023-01-012023-12-310001026655us-gaap:ServiceMembercmt:UniversalForestProductsMember2025-01-012025-12-310001026655us-gaap:ServiceMembercmt:UniversalForestProductsMember2024-01-012024-12-310001026655us-gaap:ServiceMembercmt:UniversalForestProductsMember2023-01-012023-12-310001026655cmt:UniversalForestProductsMember2025-01-012025-12-310001026655cmt:UniversalForestProductsMember2024-01-012024-12-310001026655cmt:UniversalForestProductsMember2023-01-012023-12-310001026655us-gaap:ProductMembercmt:VolvoMember2025-01-012025-12-310001026655us-gaap:ProductMembercmt:VolvoMember2024-01-012024-12-310001026655us-gaap:ProductMembercmt:VolvoMember2023-01-012023-12-310001026655us-gaap:ServiceMembercmt:VolvoMember2025-01-012025-12-310001026655us-gaap:ServiceMembercmt:VolvoMember2024-01-012024-12-310001026655us-gaap:ServiceMembercmt:VolvoMember2023-01-012023-12-310001026655cmt:VolvoMember2025-01-012025-12-310001026655cmt:VolvoMember2024-01-012024-12-310001026655cmt:VolvoMember2023-01-012023-12-310001026655us-gaap:ProductMembercmt:OtherCustomersMember2025-01-012025-12-310001026655us-gaap:ProductMembercmt:OtherCustomersMember2024-01-012024-12-310001026655us-gaap:ProductMembercmt:OtherCustomersMember2023-01-012023-12-310001026655us-gaap:ServiceMembercmt:OtherCustomersMember2025-01-012025-12-310001026655us-gaap:ServiceMembercmt:OtherCustomersMember2024-01-012024-12-310001026655us-gaap:ServiceMembercmt:OtherCustomersMember2023-01-012023-12-310001026655cmt:OtherCustomersMember2025-01-012025-12-310001026655cmt:OtherCustomersMember2024-01-012024-12-310001026655cmt:OtherCustomersMember2023-01-012023-12-310001026655us-gaap:ProductMembercmt:ReportableSegmentMember2025-01-012025-12-310001026655us-gaap:ProductMembercmt:ReportableSegmentMember2024-01-012024-12-310001026655us-gaap:ProductMembercmt:ReportableSegmentMember2023-01-012023-12-310001026655us-gaap:ServiceMembercmt:ReportableSegmentMember2025-01-012025-12-310001026655us-gaap:ServiceMembercmt:ReportableSegmentMember2024-01-012024-12-310001026655us-gaap:ServiceMembercmt:ReportableSegmentMember2023-01-012023-12-310001026655country:US2025-01-012025-12-310001026655country:US2024-01-012024-12-310001026655country:US2023-01-012023-12-310001026655country:MX2025-01-012025-12-310001026655country:MX2024-01-012024-12-310001026655country:MX2023-01-012023-12-310001026655country:CA2025-01-012025-12-310001026655country:CA2024-01-012024-12-310001026655country:CA2023-01-012023-12-310001026655cmt:OtherGeographicalLocationMember2025-01-012025-12-310001026655cmt:OtherGeographicalLocationMember2024-01-012024-12-310001026655cmt:OtherGeographicalLocationMember2023-01-012023-12-310001026655country:US2024-12-310001026655country:MX2024-12-310001026655country:CA2024-12-310001026655us-gaap:LandAndLandImprovementsMember2025-12-310001026655us-gaap:LandAndLandImprovementsMember2024-12-310001026655us-gaap:BuildingMember2025-12-310001026655us-gaap:BuildingMember2024-12-310001026655us-gaap:MachineryAndEquipmentMember2025-12-310001026655us-gaap:MachineryAndEquipmentMember2024-12-310001026655us-gaap:ToolsDiesAndMoldsMember2025-12-310001026655us-gaap:ToolsDiesAndMoldsMember2024-12-310001026655us-gaap:AssetUnderConstructionMember2025-12-310001026655us-gaap:AssetUnderConstructionMember2024-12-310001026655cmt:AccountsPayableCurrentMember2025-12-310001026655cmt:AccountsPayableCurrentMember2024-12-310001026655srt:MinimumMember2025-12-310001026655srt:MaximumMember2025-12-310001026655us-gaap:TradeNamesMember2025-12-310001026655us-gaap:TrademarksMember2025-12-310001026655us-gaap:DevelopedTechnologyRightsMember2025-12-310001026655srt:MinimumMemberus-gaap:CustomerRelationshipsMember2025-12-310001026655srt:MaximumMemberus-gaap:CustomerRelationshipsMember2025-12-310001026655us-gaap:CustomerRelationshipsMember2025-12-310001026655us-gaap:TradeNamesMember2024-12-310001026655us-gaap:TrademarksMember2024-12-310001026655us-gaap:DevelopedTechnologyRightsMember2024-12-310001026655srt:MinimumMemberus-gaap:CustomerRelationshipsMember2024-12-310001026655srt:MaximumMemberus-gaap:CustomerRelationshipsMember2024-12-310001026655us-gaap:CustomerRelationshipsMember2024-12-310001026655cmt:HuntingtonTermLoansMember2025-12-310001026655cmt:HuntingtonTermLoansMember2024-12-310001026655cmt:LeafCapitalTermLoansMemberus-gaap:LoansPayableMember2025-12-310001026655cmt:LeafCapitalTermLoansMemberus-gaap:LoansPayableMember2024-12-310001026655cmt:HuntingtonTermLoansMemberus-gaap:LoansPayableMember2022-07-220001026655us-gaap:SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMembercmt:HuntingtonTermLoansMembersrt:MinimumMemberus-gaap:LoansPayableMember2022-07-222022-07-220001026655us-gaap:SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMembercmt:HuntingtonTermLoansMembersrt:MaximumMemberus-gaap:LoansPayableMember2022-07-222022-07-220001026655us-gaap:FederalFundsEffectiveSwapRateMembercmt:HuntingtonTermLoansMemberus-gaap:LoansPayableMember2022-07-222022-07-220001026655us-gaap:SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMembercmt:HuntingtonTermLoansMemberus-gaap:LoansPayableMember2022-07-222022-07-220001026655us-gaap:SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMembercmt:HuntingtonTermLoansMembersrt:MinimumMembercmt:SOFRLoansMember2022-07-222022-07-220001026655us-gaap:SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMembercmt:HuntingtonTermLoansMembersrt:MaximumMembercmt:SOFRLoansMember2022-07-222022-07-220001026655cmt:HuntingtonTermLoansMembercmt:SOFRLoansMember2022-07-220001026655cmt:CreditAgreementMember2022-07-222022-07-220001026655cmt:HuntingtonCapexLoanMemberus-gaap:RevolvingCreditFacilityMember2022-07-220001026655cmt:HuntingtonRevolvingLoanMemberus-gaap:RevolvingCreditFacilityMember2022-07-220001026655cmt:HuntingtonRevolvingLoanMemberus-gaap:RevolvingCreditFacilityMember2022-07-222022-07-220001026655cmt:HuntingtonLoansMemberus-gaap:LoansPayableMember2025-12-310001026655cmt:HuntingtonTermLoansMemberus-gaap:SecuredDebtMember2022-07-220001026655cmt:HuntingtonTermLoansMemberus-gaap:SecuredDebtMember2022-07-222022-07-220001026655cmt:HuntingtonTermLoansMemberus-gaap:DebtInstrumentRedemptionPeriodOneMember2022-07-222022-07-220001026655cmt:HuntingtonTermLoansMemberus-gaap:DebtInstrumentRedemptionPeriodTwoMember2022-07-222022-07-220001026655cmt:HuntingtonTermLoansMemberus-gaap:DebtInstrumentRedemptionPeriodThreeMember2022-07-222022-07-220001026655cmt:HuntingtonTermLoansMemberus-gaap:LoansPayableMember2025-12-310001026655cmt:HuntingtonRevolvingLoanMemberus-gaap:RevolvingCreditFacilityMember2025-12-310001026655cmt:FGITermLoansMemberus-gaap:LoansPayableMember2020-10-200001026655us-gaap:InterestRateSwapMember2025-12-310001026655us-gaap:InterestRateSwapMember2024-12-3100010266552021-04-070001026655cmt:A2006LongTermEquityIncentivePlanMember2021-05-130001026655srt:MinimumMembercmt:A2021LongTermEquityIncentivePlanMember2025-01-012025-12-310001026655srt:MaximumMembercmt:A2021LongTermEquityIncentivePlanMember2025-01-012025-12-310001026655cmt:A2006LongTermEquityIncentivePlanMember2025-01-012025-12-310001026655us-gaap:RestrictedStockMember2025-01-012025-12-310001026655us-gaap:RestrictedStockMember2024-01-012024-12-310001026655us-gaap:RestrictedStockMember2023-01-012023-12-310001026655us-gaap:RestrictedStockMember2024-12-310001026655us-gaap:RestrictedStockMember2023-12-310001026655us-gaap:RestrictedStockMember2022-12-310001026655us-gaap:RestrictedStockMember2025-12-310001026655us-gaap:SellingGeneralAndAdministrativeExpensesMemberus-gaap:RestrictedStockMember2025-01-012025-12-310001026655us-gaap:SellingGeneralAndAdministrativeExpensesMemberus-gaap:RestrictedStockMember2024-01-012024-12-310001026655us-gaap:SellingGeneralAndAdministrativeExpensesMemberus-gaap:RestrictedStockMember2023-01-012023-12-310001026655us-gaap:PerformanceSharesMember2024-12-310001026655us-gaap:PerformanceSharesMember2023-12-310001026655us-gaap:PerformanceSharesMember2022-12-310001026655us-gaap:PerformanceSharesMember2025-01-012025-12-310001026655us-gaap:PerformanceSharesMember2024-01-012024-12-310001026655us-gaap:PerformanceSharesMember2023-01-012023-12-310001026655us-gaap:PerformanceSharesMember2025-12-310001026655us-gaap:GeneralAndAdministrativeExpenseMemberus-gaap:PerformanceSharesMember2024-01-012024-12-310001026655us-gaap:GeneralAndAdministrativeExpenseMemberus-gaap:PerformanceSharesMember2023-01-012023-12-310001026655us-gaap:StockAppreciationRightsSARSMember2019-01-012019-12-310001026655us-gaap:StockAppreciationRightsSARSMember2025-01-012025-12-310001026655us-gaap:StockAppreciationRightsSARSMember2024-12-310001026655us-gaap:StockAppreciationRightsSARSMember2023-12-310001026655us-gaap:StockAppreciationRightsSARSMember2022-12-310001026655us-gaap:StockAppreciationRightsSARSMember2024-01-012024-12-310001026655us-gaap:StockAppreciationRightsSARSMember2023-01-012023-12-310001026655us-gaap:StockAppreciationRightsSARSMember2025-12-310001026655us-gaap:RestrictedStockMember2025-08-012025-08-010001026655us-gaap:PerformanceSharesMember2025-08-012025-08-010001026655us-gaap:PhantomShareUnitsPSUsMember2025-12-310001026655us-gaap:PhantomShareUnitsPSUsMember2024-12-310001026655us-gaap:PhantomShareUnitsPSUsMember2025-01-012025-12-310001026655us-gaap:PhantomShareUnitsPSUsMember2024-01-012024-12-3100010266552024-03-110001026655us-gaap:StateAndLocalJurisdictionMember2025-01-012025-12-310001026655us-gaap:StateAndLocalJurisdictionMember2024-01-012024-12-310001026655us-gaap:StateAndLocalJurisdictionMember2023-01-012023-12-310001026655country:CA2025-01-012025-12-310001026655country:MX2025-01-012025-12-310001026655us-gaap:DomesticCountryMember2025-12-310001026655country:MXus-gaap:ForeignCountryMember2025-12-310001026655country:CAus-gaap:ForeignCountryMember2025-12-310001026655us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2014-01-012014-12-310001026655us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-01-012023-12-310001026655us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2025-01-012025-12-310001026655us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2024-01-012024-12-310001026655srt:ScenarioForecastMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2027-01-012027-12-310001026655us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2024-12-310001026655us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-12-310001026655us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2025-12-310001026655cmt:MedicalPostAge65Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2025-12-310001026655cmt:MedicalPostAge65Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2024-12-310001026655cmt:DrugsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2024-12-310001026655us-gaap:ForeignExchangeForwardMemberus-gaap:DesignatedAsHedgingInstrumentMember2025-12-310001026655us-gaap:ForeignExchangeForwardMemberus-gaap:DesignatedAsHedgingInstrumentMember2024-12-310001026655us-gaap:InterestRateSwapMemberus-gaap:DesignatedAsHedgingInstrumentMember2025-12-310001026655us-gaap:InterestRateSwapMemberus-gaap:DesignatedAsHedgingInstrumentMember2024-12-310001026655us-gaap:ForeignExchangeForwardMemberus-gaap:PrepaidExpensesAndOtherCurrentAssetsMemberus-gaap:DesignatedAsHedgingInstrumentMember2025-12-310001026655us-gaap:ForeignExchangeForwardMembercmt:OtherAccruedLiabilitiesMemberus-gaap:DesignatedAsHedgingInstrumentMember2025-12-310001026655us-gaap:ForeignExchangeForwardMemberus-gaap:OtherNoncurrentAssetsMemberus-gaap:DesignatedAsHedgingInstrumentMember2025-12-310001026655us-gaap:ForeignExchangeForwardMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:DesignatedAsHedgingInstrumentMember2025-12-310001026655us-gaap:InterestRateSwapMemberus-gaap:PrepaidExpensesAndOtherCurrentAssetsMemberus-gaap:DesignatedAsHedgingInstrumentMember2025-12-310001026655us-gaap:InterestRateSwapMembercmt:OtherAccruedLiabilitiesMemberus-gaap:DesignatedAsHedgingInstrumentMember2025-12-310001026655us-gaap:InterestRateSwapMemberus-gaap:OtherNoncurrentAssetsMemberus-gaap:DesignatedAsHedgingInstrumentMember2025-12-310001026655us-gaap:InterestRateSwapMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:DesignatedAsHedgingInstrumentMember2025-12-310001026655us-gaap:ForeignExchangeForwardMemberus-gaap:PrepaidExpensesAndOtherCurrentAssetsMemberus-gaap:DesignatedAsHedgingInstrumentMember2024-12-310001026655us-gaap:ForeignExchangeForwardMembercmt:OtherAccruedLiabilitiesMemberus-gaap:DesignatedAsHedgingInstrumentMember2024-12-310001026655us-gaap:ForeignExchangeForwardMemberus-gaap:OtherNoncurrentAssetsMemberus-gaap:DesignatedAsHedgingInstrumentMember2024-12-310001026655us-gaap:ForeignExchangeForwardMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:DesignatedAsHedgingInstrumentMember2024-12-310001026655us-gaap:InterestRateSwapMemberus-gaap:PrepaidExpensesAndOtherCurrentAssetsMemberus-gaap:DesignatedAsHedgingInstrumentMember2024-12-310001026655us-gaap:InterestRateSwapMembercmt:OtherAccruedLiabilitiesMemberus-gaap:DesignatedAsHedgingInstrumentMember2024-12-310001026655us-gaap:InterestRateSwapMemberus-gaap:OtherNoncurrentAssetsMemberus-gaap:DesignatedAsHedgingInstrumentMember2024-12-310001026655us-gaap:InterestRateSwapMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:DesignatedAsHedgingInstrumentMember2024-12-310001026655srt:MinimumMembercurrency:MXN2025-12-310001026655srt:MaximumMembercurrency:MXN2025-12-310001026655srt:MinimumMembercurrency:CAD2025-12-310001026655srt:MaximumMembercurrency:CAD2025-12-310001026655us-gaap:ForeignExchangeForwardMemberus-gaap:CostOfSalesMember2025-01-012025-12-310001026655us-gaap:ForeignExchangeForwardMemberus-gaap:CostOfSalesMember2024-01-012024-12-310001026655us-gaap:ForeignExchangeForwardMemberus-gaap:CostOfSalesMember2023-01-012023-12-310001026655us-gaap:ForeignExchangeForwardMemberus-gaap:SellingGeneralAndAdministrativeExpensesMember2025-01-012025-12-310001026655us-gaap:ForeignExchangeForwardMemberus-gaap:SellingGeneralAndAdministrativeExpensesMember2024-01-012024-12-310001026655us-gaap:ForeignExchangeForwardMemberus-gaap:SellingGeneralAndAdministrativeExpensesMember2023-01-012023-12-310001026655us-gaap:InterestRateSwapMemberus-gaap:InterestExpenseMember2025-01-012025-12-310001026655us-gaap:InterestRateSwapMemberus-gaap:InterestExpenseMember2024-01-012024-12-310001026655us-gaap:InterestRateSwapMemberus-gaap:InterestExpenseMember2023-01-012023-12-310001026655us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2023-12-310001026655us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2023-12-310001026655us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2024-01-012024-12-310001026655us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2024-01-012024-12-310001026655us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2024-12-310001026655us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2024-12-310001026655us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2025-01-012025-12-310001026655us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2025-01-012025-12-310001026655us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2025-12-310001026655us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2025-12-310001026655cmt:ReportableSegmentMember2025-01-012025-12-310001026655cmt:ReportableSegmentMember2024-01-012024-12-310001026655cmt:ReportableSegmentMember2023-01-012023-12-310001026655us-gaap:ProductMember2025-01-012025-03-310001026655us-gaap:ProductMember2025-04-012025-06-300001026655us-gaap:ProductMember2025-07-012025-09-300001026655us-gaap:ProductMember2025-10-012025-12-310001026655us-gaap:ProductMember2025-01-012025-12-310001026655us-gaap:ServiceMember2025-01-012025-03-310001026655us-gaap:ServiceMember2025-04-012025-06-300001026655us-gaap:ServiceMember2025-07-012025-09-300001026655us-gaap:ServiceMember2025-10-012025-12-310001026655us-gaap:ServiceMember2025-01-012025-12-3100010266552025-01-012025-03-3100010266552025-04-012025-06-3000010266552025-07-012025-09-3000010266552025-10-012025-12-310001026655us-gaap:ProductMember2024-01-012024-03-310001026655us-gaap:ProductMember2024-04-012024-06-300001026655us-gaap:ProductMember2024-07-012024-09-300001026655us-gaap:ProductMember2024-10-012024-12-310001026655us-gaap:ProductMember2024-01-012024-12-310001026655us-gaap:ServiceMember2024-01-012024-03-310001026655us-gaap:ServiceMember2024-04-012024-06-300001026655us-gaap:ServiceMember2024-07-012024-09-300001026655us-gaap:ServiceMember2024-10-012024-12-310001026655us-gaap:ServiceMember2024-01-012024-12-3100010266552024-01-012024-03-3100010266552024-04-012024-06-3000010266552024-07-012024-09-3000010266552024-10-012024-12-310001026655us-gaap:ProductMember2023-01-012023-03-310001026655us-gaap:ProductMember2023-04-012023-06-300001026655us-gaap:ProductMember2023-07-012023-09-300001026655us-gaap:ProductMember2023-10-012023-12-310001026655us-gaap:ProductMember2023-01-012023-12-310001026655us-gaap:ServiceMember2023-01-012023-03-310001026655us-gaap:ServiceMember2023-04-012023-06-300001026655us-gaap:ServiceMember2023-07-012023-09-300001026655us-gaap:ServiceMember2023-10-012023-12-310001026655us-gaap:ServiceMember2023-01-012023-12-3100010266552023-01-012023-03-3100010266552023-04-012023-06-3000010266552023-07-012023-09-3000010266552023-10-012023-12-310001026655us-gaap:AllowanceForCreditLossMember2024-12-310001026655us-gaap:AllowanceForCreditLossMember2025-01-012025-12-310001026655us-gaap:AllowanceForCreditLossMember2025-12-310001026655us-gaap:AllowanceForCreditLossMember2023-12-310001026655us-gaap:AllowanceForCreditLossMember2024-01-012024-12-310001026655us-gaap:AllowanceForCreditLossMember2022-12-310001026655us-gaap:AllowanceForCreditLossMember2023-01-012023-12-310001026655cmt:SECSchedule1209AllowanceChargebacksMember2024-12-310001026655cmt:SECSchedule1209AllowanceChargebacksMember2025-01-012025-12-310001026655cmt:SECSchedule1209AllowanceChargebacksMember2025-12-310001026655cmt:SECSchedule1209AllowanceChargebacksMember2023-12-310001026655cmt:SECSchedule1209AllowanceChargebacksMember2024-01-012024-12-310001026655cmt:SECSchedule1209AllowanceChargebacksMember2022-12-310001026655cmt:SECSchedule1209AllowanceChargebacksMember2023-01-012023-12-31\n\n[Table of Contents](#i6a630412e4b44f69badf46b2bc843e4d_7)\n\nUNITED STATES SECURITIES AND EXCHANGE COMMISSION\n\nWashington, D.C. 20549\n\nFORM 10-K\n\n(Mark One)\n\nþANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934\n\nFor the fiscal year ended December 31, 2025\n\nOR\n\n¨TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934\n\nFor the transition period from___________to___________\n\nCommission file number 001-12505\n\nCORE MOLDING TECHNOLOGIES, INC.\n\n(Exact name of registrant as specified in its charter)\n\nDelaware31-1481870\n\n(State or other jurisdiction incorporation or organization)(I.R.S. Employer Identification No.)\n\n800 Manor Park Drive, Columbus, Ohio\n43228-0183\n\n(Address of principal executive office)(Zip Code)\n\nRegistrant's telephone number, including area code: (614) 870-5000\n\nSecurities registered pursuant to Section 12(b) of the Act:\n\nTitle of each classTrading Symbol (s)Name of each exchange on which registered\n\nCommon Stock, par value $0.01CMTNYSE American LLC\n\nSecurities registered pursuant to Section 12(g) of the Act:\n\nNone\n\n(Title of class)\n\nIndicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ¨ No þ\n\nIndicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ¨ No þ\n\nIndicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes þ No ¨\n\nIndicate by check mark whether the registrant has submitted electronically, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes þ No ¨\n\nIndicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):\n\nLarge accelerated filer ¨\n\nAccelerated filer ☒\n\nNon-accelerated Filer ¨\n\nSmaller reporting company\n☒\n\nEmerging growth company\n☐\n\nIf an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. Yes ¨ No þ\n\nIndicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. þ\n\nIf securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. ¨\n\nIndicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant's executive officers during the relevant recovery period pursuant to §240.10D-1(b). ¨\n\nIndicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ¨ Noþ\n\nAs of June 30, 2025, the aggregate market value of the registrant's voting and non-voting common equity held by non-affiliates of the registrant was approximately $103,000,000, based upon the closing sale price of $16.59 on the NYSE American LLC on June 30, 2025, the last business day of registrant's most recently completed second fiscal quarter. As of March 9, 2026, the latest practicable date, 8,833,231 shares of the registrant’s common stock were issued, which includes 338,554 shares of unvested restricted common stock.\n\nDOCUMENTS INCORPORATED BY REFERENCE\n\nPart III of this report incorporates by reference specific portions of the registrant's Definitive Proxy Statement, which will be filed with the Securities and Exchange Commission no later than 120 days after the end of the fiscal year covered by this report.\n\n[Table of Contents](#i6a630412e4b44f69badf46b2bc843e4d_7)\n\nCORE MOLDING TECHNOLOGIES, INC. AND SUBSIDIARIES\n\nTABLE OF CONTENTS\n\n[Part I](#i6a630412e4b44f69badf46b2bc843e4d_10)\n\n[5](#i6a630412e4b44f69badf46b2bc843e4d_10)\n\n[Item 1. Business](#i6a630412e4b44f69badf46b2bc843e4d_13)\n\n[5](#i6a630412e4b44f69badf46b2bc843e4d_13)\n\n[Item 1A. Risk Factors](#i6a630412e4b44f69badf46b2bc843e4d_16)\n\n[10](#i6a630412e4b44f69badf46b2bc843e4d_16)\n\n[Item 1B. Unresolved Staff Comments](#i6a630412e4b44f69badf46b2bc843e4d_19)\n\n[20](#i6a630412e4b44f69badf46b2bc843e4d_19)\n\n[Item 1C. Cybersecurity](#i6a630412e4b44f69badf46b2bc843e4d_22)\n\n[20](#i6a630412e4b44f69badf46b2bc843e4d_22)\n\n[Item 2. Properties](#i6a630412e4b44f69badf46b2bc843e4d_25)\n\n[21](#i6a630412e4b44f69badf46b2bc843e4d_25)\n\n[Item 3. Legal Proceedings](#i6a630412e4b44f69badf46b2bc843e4d_28)\n\n[21](#i6a630412e4b44f69badf46b2bc843e4d_28)\n\n[Item 4. Mine Safety Disclosure](#i6a630412e4b44f69badf46b2bc843e4d_31)\n\n[21](#i6a630412e4b44f69badf46b2bc843e4d_31)\n\n[Part II](#i6a630412e4b44f69badf46b2bc843e4d_34)\n\n[22](#i6a630412e4b44f69badf46b2bc843e4d_34)\n\n[Item 5. Market for the Registrant's Common Equity, Related Stockholder Matters, and Issuer Purchase of Equity Securities](#i6a630412e4b44f69badf46b2bc843e4d_37)\n\n[22](#i6a630412e4b44f69badf46b2bc843e4d_37)\n\n[Item 6. [RESERVED]](#i6a630412e4b44f69badf46b2bc843e4d_40)\n\n[22](#i6a630412e4b44f69badf46b2bc843e4d_40)\n\n[Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations](#i6a630412e4b44f69badf46b2bc843e4d_43)\n\n[23](#i6a630412e4b44f69badf46b2bc843e4d_43)\n\n[Item 7A. Quantitative and Qualitative Disclosures About Market Risk](#i6a630412e4b44f69badf46b2bc843e4d_61)\n\n[31](#i6a630412e4b44f69badf46b2bc843e4d_61)\n\n[Item 8. Financial Statements and Supplementary Data](#i6a630412e4b44f69badf46b2bc843e4d_64) (PCAOB 173)\n\n[32](#i6a630412e4b44f69badf46b2bc843e4d_64)\n\n[Item 9. Changes in and Disagreements With Accountants on Accounting and Financial Disclosure](#i6a630412e4b44f69badf46b2bc843e4d_148)\n\n[62](#i6a630412e4b44f69badf46b2bc843e4d_148)\n\n[Item 9A. Controls and Procedures](#i6a630412e4b44f69badf46b2bc843e4d_151)\n\n[63](#i6a630412e4b44f69badf46b2bc843e4d_151)\n\n[Item 9B. Other Information](#i6a630412e4b44f69badf46b2bc843e4d_154)\n\n[63](#i6a630412e4b44f69badf46b2bc843e4d_154)\n\n[Item 9C. Disclosure Regarding foreign Jurisdictions that Prevent Inspections](#i6a630412e4b44f69badf46b2bc843e4d_157)\n\n[63](#i6a630412e4b44f69badf46b2bc843e4d_157)\n\n[Part III](#i6a630412e4b44f69badf46b2bc843e4d_160)\n\n[64](#i6a630412e4b44f69badf46b2bc843e4d_160)\n\n[Item 10. Directors, Executive Officers, and Corporate Governance](#i6a630412e4b44f69badf46b2bc843e4d_163)\n\n[64](#i6a630412e4b44f69badf46b2bc843e4d_163)\n\n[Item 11. Executive Compensation](#i6a630412e4b44f69badf46b2bc843e4d_166)\n\n[64](#i6a630412e4b44f69badf46b2bc843e4d_166)\n\n[Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters](#i6a630412e4b44f69badf46b2bc843e4d_169)\n\n[64](#i6a630412e4b44f69badf46b2bc843e4d_169)\n\n[Item 13. Certain Relationships and Related Transactions, and Director Independence](#i6a630412e4b44f69badf46b2bc843e4d_172)\n\n[64](#i6a630412e4b44f69badf46b2bc843e4d_172)\n\n[Item 14. Principal Accountant Fees and Services](#i6a630412e4b44f69badf46b2bc843e4d_175)\n\n[64](#i6a630412e4b44f69badf46b2bc843e4d_175)\n\n[Part IV](#i6a630412e4b44f69badf46b2bc843e4d_178)\n\n[65](#i6a630412e4b44f69badf46b2bc843e4d_178)\n\n[Item 15. Exhibits and Financial Statement Schedules](#i6a630412e4b44f69badf46b2bc843e4d_181)\n\n[65](#i6a630412e4b44f69badf46b2bc843e4d_181)\n\n[Item 16. Form 10-K Summary](#i6a630412e4b44f69badf46b2bc843e4d_184)\n\n[65](#i6a630412e4b44f69badf46b2bc843e4d_184)\n\nSignatures\n\n[66](#i6a630412e4b44f69badf46b2bc843e4d_187)\n\nExhibit 23\n\nExhibit 24\n\nExhibit 31(a)\n\nExhibit 31(b)\n\nExhibit 32(a)\n\nExhibit 32(b)\n\nEX-101 INSTANCE DOCUMENT\n\nEX-101 SCHEMA DOCUMENT\n\nEX-101 CALCULATION LINKBASE DOCUMENT\n\nEX-101 LABEL LINKBASE DOCUMENT\n\nEX-101 PRESENTATION LINKBASE DOCUMENT\n\nEX-101 DEFINITION LINKBASE DOCUMENT\n\n2\n\n[Table of Contents](#i6a630412e4b44f69badf46b2bc843e4d_7)\n\nInformation Regarding Forward-Looking Statements\n\nCertain statements in this Annual Report on Form 10-K constitute forward-looking statements within the meaning of the federal securities laws, which are subject to the \"safe harbor\" created by Section 27A of the Securities Act of 1933, as amended (the \"Securities Act\"), and Section 21E of the Securities Exchange Act of 1934, as amended (the \"Exchange Act\"). As a general matter, forward-looking statements are those focused upon future plans, objectives or performance as opposed to historical items and include statements of anticipated events or trends and expectations and beliefs relating to matters not historical in nature. Such forward-looking statements involve known and unknown risks and are subject to uncertainties and factors relating to Core Molding Technologies' operations and business environment, all of which are difficult to predict and many of which are beyond Core Molding Technologies' control. Words such as “may,” “will,” “could,” “would,” “should,” “anticipate,” “predict,” “potential,” “continue,” “expect,” “intend,” “plans,” “projects,” “believes,” “estimates,” “encouraged,” “confident” and similar expressions are used to identify these forward-looking statements. These uncertainties and factors could cause Core Molding Technologies' actual results to differ materially from those matters expressed in or implied by such forward-looking statements.\n\nCore Molding Technologies believes that the following factors, among others, could affect its future performance and cause actual results to differ materially from those expressed or implied by forward-looking statements made in this Annual Report on Form 10-K:\n\n•dependence upon certain major customers as the primary source of Core Molding Technologies’ sales revenues and the potential loss of any major customers due to the completion of existing production programs with those customers or otherwise;\n\n•business conditions in the plastics, transportation, power sports, utilities and commercial product industries (including changes in demand for production);\n\n•the availability and price increases of raw materials;\n\n•general economic, social, regulatory (including foreign trade policy) and political environments in the countries in which Core Molding Technologies operates;\n\n•the imposition of new or increased tariffs and the resulting consequences;\n\n•safety and security conditions in Mexico;\n\n•fluctuations in foreign currency exchange rates;\n\n•costs and other resources related to Core Molding Technologies' efforts to expand its customer base and grow its business;\n\n•ability to accurately quote and execute manufacturing processes for new business; the actions of competitors, customers, and suppliers;\n\n•failure of Core Molding Technologies’ suppliers to perform their obligations;\n\n•inflationary pressures; new technologies; regulatory matters;\n\n•labor relations and labor availability as well as possible work stoppages or labor disruptions at one or more of our union locations or one of our customer or supplier locations;\n\n•the loss or inability of Core Molding Technologies to attract and retain key personnel;\n\n•the ability to successfully identify, evaluate and manage potential acquisitions and to benefit from and properly integrate any completed acquisitions;\n\n3\n\n[Table of Contents](#i6a630412e4b44f69badf46b2bc843e4d_7)\n\n•federal, state and local environmental laws and regulations (including engine emission regulations);\n\n•the availability of sufficient capital;\n\n•the ability of Core Molding Technologies to provide on-time delivery to customers, which may require additional shipping expenses to ensure on-time delivery or otherwise result in late fees and other customer charges; risk of cancellation or rescheduling of orders;\n\n•management’s decision to pursue new products or businesses which involve additional costs, risks or capital expenditures;\n\n•inadequate insurance coverage to protect against potential hazards; equipment and machinery failure; product liability and warranty claims;\n\n•cybersecurity incidents or other similar disruptions impacting Core Molding Technologies or significant customers and/or suppliers; and\n\n•other risks identified from time to time in Core Molding Technologies’ other public documents on file with the Securities and Exchange Commission, including those described in Item 1A of this Annual Report on Form 10-K.\n\n4\n\n[Table of Contents](#i6a630412e4b44f69badf46b2bc843e4d_7)\n\nPART I"}