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  <link:calculationLink xlink:type="extended" xlink:role="http://www.cosan.com/role/ConsolidatedStatementOfFinancialPosition">
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    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_EquityAttributableToOwnersOfParent" xlink:to="ifrs-full_AdditionalPaidinCapital" xlink:title="Calculation : ifrs-full_EquityAttributableToOwnersOfParent to ifrs-full_AdditionalPaidinCapital" order="1" weight="1" use="optional" />
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    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_EquityAttributableToOwnersOfParent" xlink:to="ifrs-full_AccumulatedOtherComprehensiveIncome" xlink:title="Calculation : ifrs-full_EquityAttributableToOwnersOfParent to ifrs-full_AccumulatedOtherComprehensiveIncome" order="2" weight="1" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_RetainedEarnings" xlink:label="ifrs-full_RetainedEarnings" xlink:title="ifrs-full_RetainedEarnings" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_EquityAttributableToOwnersOfParent" xlink:to="ifrs-full_RetainedEarnings" xlink:title="Calculation : ifrs-full_EquityAttributableToOwnersOfParent to ifrs-full_RetainedEarnings" order="3" weight="1" use="optional" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivitiesContinuingOperations" xlink:label="ifrs-full_CashFlowsFromUsedInOperatingActivitiesContinuingOperations" xlink:title="ifrs-full_CashFlowsFromUsedInOperatingActivitiesContinuingOperations" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" xlink:to="ifrs-full_CashFlowsFromUsedInOperatingActivitiesContinuingOperations" xlink:title="Calculation : ifrs-full_IncreaseDecreaseInCashAndCashEquivalents to ifrs-full_CashFlowsFromUsedInOperatingActivitiesContinuingOperations" order="0" weight="1" use="optional" />
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    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:to="ifrs-full_ProfitLossBeforeTax" xlink:title="Calculation : ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital to ifrs-full_ProfitLossBeforeTax" order="0" weight="1" use="optional" />
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    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:to="csan_AdjustmentsForDepreciationAmortizationAndImpairmentExpense" xlink:title="Calculation : ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital to csan_AdjustmentsForDepreciationAmortizationAndImpairmentExpense" order="1" weight="1" use="optional" />
    <link:loc xlink:type="locator" xlink:href="csan-20201231.xsd#csan_AdjustmentsForProvisionReversalOfLeaseAndConcession" xlink:label="csan_AdjustmentsForProvisionReversalOfLeaseAndConcession" xlink:title="csan_AdjustmentsForProvisionReversalOfLeaseAndConcession" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:to="csan_AdjustmentsForProvisionReversalOfLeaseAndConcession" xlink:title="Calculation : ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital to csan_AdjustmentsForProvisionReversalOfLeaseAndConcession" order="2" weight="1" />
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    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:to="ifrs-full_ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod" xlink:title="Calculation : ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital to ifrs-full_ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod" order="3" weight="-1" use="optional" />
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    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:to="ifrs-full_AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment" xlink:title="Calculation : ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital to ifrs-full_AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment" order="5" weight="-1" use="optional" />
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    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:to="csan_AdjustmentsForIndexationChargesInterestAndExchangeNet" xlink:title="Calculation : ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital to csan_AdjustmentsForIndexationChargesInterestAndExchangeNet" order="8" weight="1" use="optional" />
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    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:to="csan_AdjustmentsForSectorFinancialAssetsAndLiabilitiesNet" xlink:title="Calculation : ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital to csan_AdjustmentsForSectorFinancialAssetsAndLiabilitiesNet" order="9" weight="1" />
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    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:to="csan_AdjustmentsForAllowanceForDoubtfulAccounts" xlink:title="Calculation : ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital to csan_AdjustmentsForAllowanceForDoubtfulAccounts" order="12" weight="1" use="optional" />
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    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:to="csan_AdjustmentsForCreditSalesToThirdParty" xlink:title="Calculation : ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital to csan_AdjustmentsForCreditSalesToThirdParty" order="13" weight="-1" use="optional" />
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