<?xml version="1.0" encoding="utf-8"?>
<?taxonomy-generator id="PomdocPro" version="2021.1.1.1" date="2026-03-19 16:05:31"?>
<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"
  xmlns:xbrldt="http://xbrl.org/2005/xbrldt"
  xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"
>
  <arcroleRef
    arcroleURI="https://xbrl.org/2023/arcrole/summation-item"
    xlink:href="https://www.xbrl.org/2023/calculation-1.1.xsd#summation-item"
    xlink:type="simple"
  />
  <roleRef
    roleURI="https://www.imerys.com/role/IncomeStatement"
    xlink:href="Imerys-2025-12-31.xsd#IncomeStatement"
    xlink:type="simple"
  />
  <roleRef
    roleURI="https://www.imerys.com/role/StatementOfCashFlows"
    xlink:href="Imerys-2025-12-31.xsd#StatementOfCashFlows"
    xlink:type="simple"
  />
  <roleRef
    roleURI="https://www.imerys.com/role/StatementOfFinancialPosition"
    xlink:href="Imerys-2025-12-31.xsd#StatementOfFinancialPosition"
    xlink:type="simple"
  />
  <roleRef
    roleURI="https://www.imerys.com/role/StatementOfComprehensiveIncome"
    xlink:href="Imerys-2025-12-31.xsd#StatementOfComprehensiveIncome"
    xlink:type="simple"
  />
  <roleRef
    roleURI="https://www.imerys.com/role/StatementOfChangesInEquity"
    xlink:href="Imerys-2025-12-31.xsd#StatementOfChangesInEquity"
    xlink:type="simple"
  />
  <roleRef
    roleURI="https://www.imerys.com/role/IncomeStatement2"
    xlink:href="Imerys-2025-12-31.xsd#IncomeStatement2"
    xlink:type="simple"
  />
  <roleRef
    roleURI="https://www.imerys.com/role/StatementOfComprehensiveIncome2"
    xlink:href="Imerys-2025-12-31.xsd#StatementOfComprehensiveIncome2"
    xlink:type="simple"
  />
  <calculationLink xlink:role="https://www.imerys.com/role/IncomeStatement" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss"/>
    <loc xlink:type="locator" xlink:label="NetFinancialDebtExpense" xlink:href="Imerys-2025-12-31.xsd#NK_NetFinancialDebtExpense"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_InterestIncomeOnCashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestIncomeOnCashAndCashEquivalents"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="ifrs-full_InterestIncomeOnCashAndCashEquivalents" xlink:from="NetFinancialDebtExpense" order="14.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherFinanceIncomeCost" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherFinanceIncomeCost"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherFinanceIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherFinanceIncome"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_OtherFinanceIncome" xlink:from="ifrs-full_OtherFinanceIncomeCost" order="18.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherFinanceCost" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherFinanceCost"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="ifrs-full_OtherFinanceCost" xlink:from="ifrs-full_OtherFinanceIncomeCost" order="19.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_FinanceIncomeCost" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinanceIncomeCost"/>
    <loc xlink:type="locator" xlink:label="NetFinancialDebtExpensex" xlink:href="Imerys-2025-12-31.xsd#NK_NetFinancialDebtExpense"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="NetFinancialDebtExpensex" xlink:from="ifrs-full_FinanceIncomeCost" order="20.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherFinanceIncomeCostx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherFinanceIncomeCost"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_OtherFinanceIncomeCostx" xlink:from="ifrs-full_FinanceIncomeCost" order="21.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_FinanceIncomeCostx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinanceIncomeCost"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProfitLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLoss"/>
    <loc xlink:type="locator" xlink:label="GrossFinancialDebtExpense" xlink:href="Imerys-2025-12-31.xsd#NK_GrossFinancialDebtExpense"/>
    <loc xlink:type="locator" xlink:label="GrossFinancialDebtExpensex" xlink:href="Imerys-2025-12-31.xsd#NK_GrossFinancialDebtExpense"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="GrossFinancialDebtExpensex" xlink:from="NetFinancialDebtExpense" order="42.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProfitLossAttributableToNoncontrollingInterests" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossAttributableToNoncontrollingInterests"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProfitLossAttributableToOwnersOfParent" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossAttributableToOwnersOfParent"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss" xlink:from="ifrs-full_FinanceIncomeCost" order="51.0"/>
    <loc xlink:type="locator" xlink:label="ProfitLossFromOrdinaryActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesInOperatingActivity" xlink:href="Imerys-2025-12-31.xsd#NK_ProfitLossFromOrdinaryActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesInOperatingActivity"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethodx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethodx" xlink:from="ProfitLossFromOrdinaryActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesInOperatingActivity" order="55.0"/>
    <loc xlink:type="locator" xlink:label="OtherCurrentIncomeAndExpensex" xlink:href="Imerys-2025-12-31.xsd#NK_OtherCurrentIncomeAndExpense"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="OtherCurrentIncomeAndExpensex" xlink:from="ProfitLossFromOrdinaryActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesInOperatingActivity" order="56.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossxx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="ifrs-full_DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossxx" xlink:from="ProfitLossFromOrdinaryActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesInOperatingActivity" order="57.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TaxExpenseOtherThanIncomeTaxExpensex" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TaxExpenseOtherThanIncomeTaxExpense"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="ifrs-full_TaxExpenseOtherThanIncomeTaxExpensex" xlink:from="ProfitLossFromOrdinaryActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesInOperatingActivity" order="58.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_EmployeeBenefitsExpensex" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EmployeeBenefitsExpense"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="ifrs-full_EmployeeBenefitsExpensex" xlink:from="ProfitLossFromOrdinaryActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesInOperatingActivity" order="59.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ServicesExpensex" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ServicesExpense"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="ifrs-full_ServicesExpensex" xlink:from="ProfitLossFromOrdinaryActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesInOperatingActivity" order="60.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RawMaterialsAndConsumablesUsedx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RawMaterialsAndConsumablesUsed"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="ifrs-full_RawMaterialsAndConsumablesUsedx" xlink:from="ProfitLossFromOrdinaryActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesInOperatingActivity" order="61.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RevenueFromContractsWithCustomersx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RevenueFromContractsWithCustomers"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_RevenueFromContractsWithCustomersx" xlink:from="ProfitLossFromOrdinaryActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesInOperatingActivity" order="62.0"/>
    <loc xlink:type="locator" xlink:label="ProfitLossFromOperatingActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesInOperatingActivity" xlink:href="Imerys-2025-12-31.xsd#NK_ProfitLossFromOperatingActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesInOperatingActivity"/>
    <loc xlink:type="locator" xlink:label="ProfitLossFromOperatingActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesInOperatingActivityx" xlink:href="Imerys-2025-12-31.xsd#NK_ProfitLossFromOperatingActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesInOperatingActivity"/>
    <loc xlink:type="locator" xlink:label="OtherNonRecurringItems" xlink:href="Imerys-2025-12-31.xsd#NK_OtherNonRecurringItems"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="OtherNonRecurringItems" xlink:from="ProfitLossFromOperatingActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesInOperatingActivityx" order="63.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GainsLossesOnDisposalsOfInvestments" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnDisposalsOfInvestments"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_GainsLossesOnDisposalsOfInvestments" xlink:from="ProfitLossFromOperatingActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesInOperatingActivityx" order="64.0"/>
    <loc xlink:type="locator" xlink:label="ProfitLossFromOrdinaryActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesInOperatingActivityx" xlink:href="Imerys-2025-12-31.xsd#NK_ProfitLossFromOrdinaryActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesInOperatingActivity"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ProfitLossFromOrdinaryActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesInOperatingActivityx" xlink:from="ProfitLossFromOperatingActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesInOperatingActivityx" order="65.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProfitLossx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLoss"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_FinanceIncomeCostxx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinanceIncomeCost"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_FinanceIncomeCostxx" xlink:from="ifrs-full_ProfitLossx" order="66.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncomeTaxExpenseContinuingOperationsx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="ifrs-full_IncomeTaxExpenseContinuingOperationsx" xlink:from="ifrs-full_ProfitLossx" order="67.0"/>
    <loc xlink:type="locator" xlink:label="ProfitLossFromOperatingActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesInOperatingActivityxx" xlink:href="Imerys-2025-12-31.xsd#NK_ProfitLossFromOperatingActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesInOperatingActivity"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ProfitLossFromOperatingActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesInOperatingActivityxx" xlink:from="ifrs-full_ProfitLossx" order="68.0"/>
  </calculationLink>
  <calculationLink xlink:role="https://www.imerys.com/role/StatementOfCashFlows" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_CashFlowsFromUsedInOperations" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperations"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncreaseDecreaseInWorkingCapitalx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInWorkingCapital"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="ifrs-full_IncreaseDecreaseInWorkingCapitalx" xlink:from="ifrs-full_CashFlowsFromUsedInOperations" order="5.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AdjustmentsForIncomeTaxExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncomeTaxExpense"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_AdjustmentsForIncomeTaxExpense" xlink:from="ifrs-full_CashFlowsFromUsedInOperations" order="6.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" xlink:from="ifrs-full_CashFlowsFromUsedInOperations" order="11.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="ifrs-full_AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod" xlink:from="ifrs-full_CashFlowsFromUsedInOperations" order="12.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AdjustmentsForProvisions" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForProvisions"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_AdjustmentsForProvisions" xlink:from="ifrs-full_CashFlowsFromUsedInOperations" order="14.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_AdjustmentsForDepreciationAndAmortisationExpenseAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDepreciationAndAmortisationExpenseAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_AdjustmentsForDepreciationAndAmortisationExpenseAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:from="ifrs-full_CashFlowsFromUsedInOperations" order="18.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProfitLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLoss"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_ProfitLoss" xlink:from="ifrs-full_CashFlowsFromUsedInOperations" order="19.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CashFlowsFromUsedInOperationsx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperations"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_CashFlowsFromUsedInOperationsx" xlink:from="ifrs-full_CashFlowsFromUsedInOperatingActivities" order="20.0"/>
    <loc xlink:type="locator" xlink:label="DividendsReceivedFromJointVenturesAndAssociatesClassifiedAsOperatingActivities" xlink:href="Imerys-2025-12-31.xsd#NK_DividendsReceivedFromJointVenturesAndAssociatesClassifiedAsOperatingActivities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="DividendsReceivedFromJointVenturesAndAssociatesClassifiedAsOperatingActivities" xlink:from="ifrs-full_CashFlowsFromUsedInOperatingActivities" order="23.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivities" order="25.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="ifrs-full_CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivities" order="26.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivities" order="27.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivities" order="29.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivities" order="33.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivities" order="34.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivities" order="35.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivities" order="36.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DividendsPaidClassifiedAsFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DividendsPaidClassifiedAsFinancingActivities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="ifrs-full_DividendsPaidClassifiedAsFinancingActivities" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivities" order="37.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PaymentsToAcquireOrRedeemEntitysShares"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivities" order="38.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CashFlowsFromUsedInFinancingActivitiesx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_CashFlowsFromUsedInFinancingActivitiesx" xlink:from="ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" order="40.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CashFlowsFromUsedInInvestingActivitiesx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_CashFlowsFromUsedInInvestingActivitiesx" xlink:from="ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" order="41.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CashFlowsFromUsedInOperatingActivitiesx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_CashFlowsFromUsedInOperatingActivitiesx" xlink:from="ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" order="42.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Cash" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Cash"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_Cash" xlink:from="ifrs-full_CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition" order="43.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashEquivalents"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_CashEquivalents" xlink:from="ifrs-full_CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition" order="44.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BankOverdraftsClassifiedAsCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BankOverdraftsClassifiedAsCashEquivalents"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="ifrs-full_BankOverdraftsClassifiedAsCashEquivalents" xlink:from="ifrs-full_CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition" order="45.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" xlink:from="ifrs-full_CashFlowsFromUsedInOperatingActivities" order="49.0"/>
    <loc xlink:type="locator" xlink:label="ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillAndOtherNoncurrentAssets" xlink:href="Imerys-2025-12-31.xsd#NK_ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillAndOtherNoncurrentAssets"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillAndOtherNoncurrentAssets" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivities" order="50.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherCashReceiptsFromSalesOfEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherCashReceiptsFromSalesOfEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_OtherCashReceiptsFromSalesOfEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivities" order="51.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_InterestPaidClassifiedAsFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestPaidClassifiedAsFinancingActivities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="ifrs-full_InterestPaidClassifiedAsFinancingActivities" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivities" order="52.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherCashPaymentsToAcquireEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherCashPaymentsToAcquireEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="ifrs-full_OtherCashPaymentsToAcquireEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivities" order="53.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherAdjustmentsToReconcileProfitLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherAdjustmentsToReconcileProfitLoss"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_OtherAdjustmentsToReconcileProfitLoss" xlink:from="ifrs-full_CashFlowsFromUsedInOperations" order="54.0"/>
    <loc xlink:type="locator" xlink:label="PurchaseOfIntangibleAssetsAndOfPropertyPlantAndEquipmentClassifiedAsInvestingActivitiesNetOfChangeInPayablesOnAcquisitionsOfIntangibleAssetsAndPropertyPlantAndEquipment" xlink:href="Imerys-2025-12-31.xsd#NK_PurchaseOfIntangibleAssetsAndOfPropertyPlantAndEquipmentClassifiedAsInvestingActivitiesNetOfChangeInPayablesOnAcquisitionsOfIntangibleAssetsAndPropertyPlantAndEquipment"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="PurchaseOfIntangibleAssetsAndOfPropertyPlantAndEquipmentClassifiedAsInvestingActivitiesNetOfChangeInPayablesOnAcquisitionsOfIntangibleAssetsAndPropertyPlantAndEquipment" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivities" order="55.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivities" order="57.0"/>
    <loc xlink:type="locator" xlink:label="InterestReceivedAndOtherFinancialIncome" xlink:href="Imerys-2025-12-31.xsd#NK_InterestReceivedAndOtherFinancialIncome"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="InterestReceivedAndOtherFinancialIncome" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivities" order="58.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProceedsFromIssuingShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromIssuingShares"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_ProceedsFromIssuingShares" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivities" order="59.0"/>
  </calculationLink>
  <calculationLink xlink:role="https://www.imerys.com/role/StatementOfFinancialPosition" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_NoncurrentAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentAssets"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Goodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Goodwill"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_Goodwill" xlink:from="ifrs-full_NoncurrentAssets" order="1.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IntangibleAssetsOtherThanGoodwill"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:from="ifrs-full_NoncurrentAssets" order="2.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RightofuseAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RightofuseAssets"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_RightofuseAssets" xlink:from="ifrs-full_NoncurrentAssets" order="3.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_MiningAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MiningAssets"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_MiningAssets" xlink:from="ifrs-full_NoncurrentAssets" order="4.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_PropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PropertyPlantAndEquipment"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_PropertyPlantAndEquipment" xlink:from="ifrs-full_NoncurrentAssets" order="5.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_InvestmentAccountedForUsingEquityMethod" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InvestmentAccountedForUsingEquityMethod"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_InvestmentAccountedForUsingEquityMethod" xlink:from="ifrs-full_NoncurrentAssets" order="6.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherNoncurrentFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherNoncurrentFinancialAssets"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_OtherNoncurrentFinancialAssets" xlink:from="ifrs-full_NoncurrentAssets" order="7.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherNoncurrentReceivables" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherNoncurrentReceivables"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_OtherNoncurrentReceivables" xlink:from="ifrs-full_NoncurrentAssets" order="8.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NoncurrentDerivativeFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentDerivativeFinancialAssets"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_NoncurrentDerivativeFinancialAssets" xlink:from="ifrs-full_NoncurrentAssets" order="9.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DeferredTaxAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxAssets"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_DeferredTaxAssets" xlink:from="ifrs-full_NoncurrentAssets" order="10.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentAssetsOtherThanAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentAssetsOtherThanAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Inventories" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Inventories"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_Inventories" xlink:from="ifrs-full_CurrentAssetsOtherThanAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners" order="11.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentTradeReceivables" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentTradeReceivables"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_CurrentTradeReceivables" xlink:from="ifrs-full_CurrentAssetsOtherThanAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners" order="12.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentDerivativeFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentDerivativeFinancialAssets"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_CurrentDerivativeFinancialAssets" xlink:from="ifrs-full_CurrentAssetsOtherThanAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners" order="14.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherCurrentFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherCurrentFinancialAssets"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_OtherCurrentFinancialAssets" xlink:from="ifrs-full_CurrentAssetsOtherThanAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners" order="15.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashAndCashEquivalents"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_CashAndCashEquivalents" xlink:from="ifrs-full_CurrentAssetsOtherThanAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners" order="16.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_EquityAttributableToOwnersOfParent" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityAttributableToOwnersOfParent"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IssuedCapital" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IssuedCapital"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_IssuedCapital" xlink:from="ifrs-full_EquityAttributableToOwnersOfParent" order="17.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_SharePremium" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SharePremium"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_SharePremium" xlink:from="ifrs-full_EquityAttributableToOwnersOfParent" order="18.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TreasuryShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TreasuryShares"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="ifrs-full_TreasuryShares" xlink:from="ifrs-full_EquityAttributableToOwnersOfParent" order="19.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_RetainedEarningsProfitLossForReportingPeriod" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RetainedEarningsProfitLossForReportingPeriod"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_RetainedEarningsProfitLossForReportingPeriod" xlink:from="ifrs-full_EquityAttributableToOwnersOfParent" order="21.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Equity" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Equity"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NoncontrollingInterests" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncontrollingInterests"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_NoncontrollingInterests" xlink:from="ifrs-full_Equity" order="22.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_EquityAttributableToOwnersOfParentx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityAttributableToOwnersOfParent"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_EquityAttributableToOwnersOfParentx" xlink:from="ifrs-full_Equity" order="23.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NoncurrentLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentLiabilities"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NoncurrentProvisionsForEmployeeBenefits" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentProvisionsForEmployeeBenefits"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_NoncurrentProvisionsForEmployeeBenefits" xlink:from="ifrs-full_NoncurrentLiabilities" order="24.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherLongtermProvisions" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherLongtermProvisions"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_OtherLongtermProvisions" xlink:from="ifrs-full_NoncurrentLiabilities" order="25.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LongtermBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LongtermBorrowings"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_LongtermBorrowings" xlink:from="ifrs-full_NoncurrentLiabilities" order="26.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NoncurrentLeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentLeaseLiabilities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_NoncurrentLeaseLiabilities" xlink:from="ifrs-full_NoncurrentLiabilities" order="27.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NoncurrentDerivativeFinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentDerivativeFinancialLiabilities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_NoncurrentDerivativeFinancialLiabilities" xlink:from="ifrs-full_NoncurrentLiabilities" order="29.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_DeferredTaxLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxLiabilities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_DeferredTaxLiabilities" xlink:from="ifrs-full_NoncurrentLiabilities" order="30.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentLiabilitiesOtherThanLiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentLiabilitiesOtherThanLiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherShorttermProvisions" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherShorttermProvisions"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_OtherShorttermProvisions" xlink:from="ifrs-full_CurrentLiabilitiesOtherThanLiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale" order="31.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" xlink:from="ifrs-full_CurrentLiabilitiesOtherThanLiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale" order="32.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentTaxLiabilitiesCurrent" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentTaxLiabilitiesCurrent"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_CurrentTaxLiabilitiesCurrent" xlink:from="ifrs-full_CurrentLiabilitiesOtherThanLiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale" order="33.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentDerivativeFinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentDerivativeFinancialLiabilities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_CurrentDerivativeFinancialLiabilities" xlink:from="ifrs-full_CurrentLiabilitiesOtherThanLiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale" order="35.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings" xlink:from="ifrs-full_CurrentLiabilitiesOtherThanLiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale" order="36.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentLeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentLeaseLiabilities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_CurrentLeaseLiabilities" xlink:from="ifrs-full_CurrentLiabilitiesOtherThanLiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale" order="37.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_BankOverdraftsClassifiedAsCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BankOverdraftsClassifiedAsCashEquivalents"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_BankOverdraftsClassifiedAsCashEquivalents" xlink:from="ifrs-full_CurrentLiabilitiesOtherThanLiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale" order="38.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_EquityAndLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityAndLiabilities"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentLiabilitiesOtherThanLiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSalex" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentLiabilitiesOtherThanLiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_CurrentLiabilitiesOtherThanLiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSalex" xlink:from="ifrs-full_EquityAndLiabilities" order="40.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NoncurrentLiabilitiesx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentLiabilities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_NoncurrentLiabilitiesx" xlink:from="ifrs-full_EquityAndLiabilities" order="41.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Equityx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Equity"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_Equityx" xlink:from="ifrs-full_EquityAndLiabilities" order="42.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_Assets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Assets"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentAssetsOtherThanAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwnersx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentAssetsOtherThanAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_CurrentAssetsOtherThanAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwnersx" xlink:from="ifrs-full_Assets" order="43.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NoncurrentAssetsx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentAssets"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_NoncurrentAssetsx" xlink:from="ifrs-full_Assets" order="44.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale" xlink:from="ifrs-full_Assets" order="45.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSalex" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSalex" xlink:from="ifrs-full_EquityAndLiabilities" order="46.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherCurrentNonfinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherCurrentNonfinancialAssets"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_OtherCurrentNonfinancialAssets" xlink:from="ifrs-full_CurrentAssetsOtherThanAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners" order="47.0"/>
    <loc xlink:type="locator" xlink:label="RetainedEarningsAndOtherReserves" xlink:href="Imerys-2025-12-31.xsd#NK_RetainedEarningsAndOtherReserves"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="RetainedEarningsAndOtherReserves" xlink:from="ifrs-full_EquityAttributableToOwnersOfParent" order="48.0"/>
    <loc xlink:type="locator" xlink:label="OtherCurrentAndNonFinancialLiabilities" xlink:href="Imerys-2025-12-31.xsd#NK_OtherCurrentAndNonFinancialLiabilities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="OtherCurrentAndNonFinancialLiabilities" xlink:from="ifrs-full_CurrentLiabilitiesOtherThanLiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale" order="53.0"/>
    <loc xlink:type="locator" xlink:label="OtherNonCurrentAndNonFinancialLiabilities" xlink:href="Imerys-2025-12-31.xsd#NK_OtherNonCurrentAndNonFinancialLiabilities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="OtherNonCurrentAndNonFinancialLiabilities" xlink:from="ifrs-full_NoncurrentLiabilities" order="54.0"/>
  </calculationLink>
  <calculationLink xlink:role="https://www.imerys.com/role/StatementOfComprehensiveIncome" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherComprehensiveIncomeBeforeTaxCashFlowHedges" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxCashFlowHedges"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GainsLossesOnCashFlowHedgesBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnCashFlowHedgesBeforeTax"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_GainsLossesOnCashFlowHedgesBeforeTax" xlink:from="ifrs-full_OtherComprehensiveIncomeBeforeTaxCashFlowHedges" order="1.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax" xlink:from="ifrs-full_OtherComprehensiveIncomeBeforeTaxCashFlowHedges" order="2.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherComprehensiveIncomeBeforeTaxHedgesOfNetInvestmentsInForeignOperations" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxHedgesOfNetInvestmentsInForeignOperations"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax" xlink:from="ifrs-full_OtherComprehensiveIncomeBeforeTaxHedgesOfNetInvestmentsInForeignOperations" order="3.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="ifrs-full_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax" xlink:from="ifrs-full_OtherComprehensiveIncomeBeforeTaxHedgesOfNetInvestmentsInForeignOperations" order="4.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationBeforeTax"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationBeforeTax" xlink:from="ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation" order="5.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationBeforeTax"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="ifrs-full_ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationBeforeTax" xlink:from="ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation" order="6.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslationxx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslationxx" xlink:from="ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" order="8.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherComprehensiveIncomeBeforeTaxCashFlowHedgesxx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxCashFlowHedges"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_OtherComprehensiveIncomeBeforeTaxCashFlowHedgesxx" xlink:from="ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" order="9.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherComprehensiveIncomeBeforeTaxHedgesOfNetInvestmentsInForeignOperationsxx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxHedgesOfNetInvestmentsInForeignOperations"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_OtherComprehensiveIncomeBeforeTaxHedgesOfNetInvestmentsInForeignOperationsxx" xlink:from="ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" order="10.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlansx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlansx" xlink:from="ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" order="11.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ComprehensiveIncomex" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComprehensiveIncome"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxx" xlink:from="ifrs-full_ComprehensiveIncomex" order="15.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxx" xlink:from="ifrs-full_ComprehensiveIncomex" order="16.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProfitLossx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLoss"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_ProfitLossx" xlink:from="ifrs-full_ComprehensiveIncomex" order="17.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossx" xlink:from="ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" order="18.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossx" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="-1" xlink:to="ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossx" xlink:from="ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" order="19.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesFromInvestmentsInEquityInstruments" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesFromInvestmentsInEquityInstruments"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesFromInvestmentsInEquityInstruments" xlink:from="ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" order="20.0"/>
  </calculationLink>
  <calculationLink xlink:role="https://www.imerys.com/role/StatementOfChangesInEquity" xlink:type="extended">
  </calculationLink>
  <calculationLink xlink:role="https://www.imerys.com/role/IncomeStatement2" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_ProfitLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLoss"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProfitLossAttributableToOwnersOfParent" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossAttributableToOwnersOfParent"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_ProfitLossAttributableToOwnersOfParent" xlink:from="ifrs-full_ProfitLoss" order="3.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ProfitLossAttributableToNoncontrollingInterests" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossAttributableToNoncontrollingInterests"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_ProfitLossAttributableToNoncontrollingInterests" xlink:from="ifrs-full_ProfitLoss" order="4.0"/>
  </calculationLink>
  <calculationLink xlink:role="https://www.imerys.com/role/StatementOfComprehensiveIncome2" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ifrs-full_ComprehensiveIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComprehensiveIncome"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent" xlink:from="ifrs-full_ComprehensiveIncome" order="1.0"/>
    <loc xlink:type="locator" xlink:label="ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests"/>
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" weight="1" xlink:to="ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests" xlink:from="ifrs-full_ComprehensiveIncome" order="2.0"/>
  </calculationLink>
</linkbase>