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  <xsd:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" />
  <xsd:import namespace="http://fasb.org/us-roles/2025" schemaLocation="https://xbrl.fasb.org/us-gaap/2025/elts/us-roles-2025.xsd" />
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  <xsd:import namespace="http://xbrl.sec.gov/currency/2025" schemaLocation="https://xbrl.sec.gov/currency/2025/currency-2025.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/country/2025" schemaLocation="https://xbrl.sec.gov/country/2025/country-2025.xsd" />
  <xsd:import namespace="http://fasb.org/srt/2025" schemaLocation="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/ecd-sub/2025" schemaLocation="https://xbrl.sec.gov/ecd/2025/ecd-sub-2025.xsd" />
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  <xsd:element id="tse_DebtInstrumentPeriodicPaymentAsPercentOfOriginalPrincipalAmount" name="DebtInstrumentPeriodicPaymentAsPercentOfOriginalPrincipalAmount" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
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  <xsd:element id="tse_UnrealizedGainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments" name="UnrealizedGainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
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  <xsd:element id="tse_AdjustedEbitdaGainLossOnDispositionOfBusinessAndAssetsAddback" name="AdjustedEbitdaGainLossOnDispositionOfBusinessAndAssetsAddback" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
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  <xsd:element name="RestrictedCashUnitsRcusMember" id="tse_RestrictedCashUnitsRcusMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
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  <xsd:element name="EuroInterbankOfferedRateMember" id="tse_EuroInterbankOfferedRateMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SeniorCreditFacility2028TermLoanBAnd2028RefinancingTermLoanMember" id="tse_SeniorCreditFacility2028TermLoanBAnd2028RefinancingTermLoanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
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  <xsd:element name="AcceleratedDepreciationChargesOfPlantPropertyAndEquipmentAssociatedWithExitMember" id="tse_AcceleratedDepreciationChargesOfPlantPropertyAndEquipmentAssociatedWithExitMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RestructuringReserveWriteOffs" id="tse_RestructuringReserveWriteOffs" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
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  <xsd:element name="LenderConsentFeePercentage" id="tse_LenderConsentFeePercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
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  <xsd:element name="OpcoIntercompanyTermLoansMember" id="tse_OpcoIntercompanyTermLoansMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LiabilitiesSubjectToCompromiseDisclosuresTextBlock" id="tse_LiabilitiesSubjectToCompromiseDisclosuresTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
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  <xsd:element name="LiabilitiesSubjectToCompromiseDebt" id="tse_LiabilitiesSubjectToCompromiseDebt" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="LiabilitiesSubjectToCompromiseAccruedInterest" id="tse_LiabilitiesSubjectToCompromiseAccruedInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="LiabilitiesSubjectToCompromiseLeaseLiabilities" id="tse_LiabilitiesSubjectToCompromiseLeaseLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DebtorReorganizationItemsPostPetitionDebtIssuanceCostsWriteoff" id="tse_DebtorReorganizationItemsPostPetitionDebtIssuanceCostsWriteoff" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AccruedReorganizationItemsCurrent" id="tse_AccruedReorganizationItemsCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="PaymentsForReorganizationItemsNet" id="tse_PaymentsForReorganizationItemsNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="SeniorSecuredSuperPriorityDebtorInPossessionCreditAgreementMember" id="tse_SeniorSecuredSuperPriorityDebtorInPossessionCreditAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SeniorSecuredSuperPriorityDebtorInPossessionHoldcoCreditAgreementMember" id="tse_SeniorSecuredSuperPriorityDebtorInPossessionHoldcoCreditAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AccountsReceivableSecuritizationFacility2026Member" id="tse_AccountsReceivableSecuritizationFacility2026Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LiabilitiesSubjectToCompromiseProtectionPaymentsOutstanding" id="tse_LiabilitiesSubjectToCompromiseProtectionPaymentsOutstanding" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="SeniorSecuredSuperPriorityDebtorInPossessionHoldcoCreditAgreementNewTermLoanMember" id="tse_SeniorSecuredSuperPriorityDebtorInPossessionHoldcoCreditAgreementNewTermLoanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DebtorInPossessionMinimumLiquidityCovenant" id="tse_DebtorInPossessionMinimumLiquidityCovenant" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DebtorInPossessionMaximumOperatingDisbursementVariancePercentage" id="tse_DebtorInPossessionMaximumOperatingDisbursementVariancePercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="LineOfCreditFacilityAdditionalBorrowingCapacity" id="tse_LineOfCreditFacilityAdditionalBorrowingCapacity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="SeniorSecuredSuperPriorityDebtorInPossessionCreditAgreementRollUpFacilityMember" id="tse_SeniorSecuredSuperPriorityDebtorInPossessionCreditAgreementRollUpFacilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ContractualInterestExpense" id="tse_ContractualInterestExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="LiabilitiesSubjectToCompromiseOnly" id="tse_LiabilitiesSubjectToCompromiseOnly" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="OpcoDipFacilityMember" id="tse_OpcoDipFacilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OpcoSuperPriorityRevolverMember" id="tse_OpcoSuperPriorityRevolverMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SuperHoldcoDipFacilityMember" id="tse_SuperHoldcoDipFacilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NumberOfDebtorInPossessionCreditAgreements" id="tse_NumberOfDebtorInPossessionCreditAgreements" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="NumberOfClaimsDenied" id="tse_NumberOfClaimsDenied" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DebtorReorganizationItemsProfessionalFees" id="tse_DebtorReorganizationItemsProfessionalFees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
</xsd:schema>
