<?xml version="1.0" encoding="utf-8"?>
<!--Generated by DataTracks Rainbow version 3.0 on 08-April-2022 [09:18:34] {PM}-->
<linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
<roleRef xlink:type="simple" xlink:href="213800C5UOZHUTNUGA28-2021-12-31.xsd#ConsolidatedStatementOfProfitOrLossAndComprehensiveIncome" roleURI="http://www.alfasystems.com/role/ConsolidatedStatementOfProfitOrLossAndComprehensiveIncome" />
<roleRef xlink:type="simple" xlink:href="213800C5UOZHUTNUGA28-2021-12-31.xsd#ConsolidatedStatementOfFinancialPosition" roleURI="http://www.alfasystems.com/role/ConsolidatedStatementOfFinancialPosition" />
<roleRef xlink:type="simple" xlink:href="213800C5UOZHUTNUGA28-2021-12-31.xsd#ConsolidatedStatementOfChangesInEquity" roleURI="http://www.alfasystems.com/role/ConsolidatedStatementOfChangesInEquity" />
<roleRef xlink:type="simple" xlink:href="213800C5UOZHUTNUGA28-2021-12-31.xsd#ConsolidatedStatementOfCashFlows" roleURI="http://www.alfasystems.com/role/ConsolidatedStatementOfCashFlows" />
<calculationLink xlink:type="extended" xlink:role="http://www.alfasystems.com/role/ConsolidatedStatementOfProfitOrLossAndComprehensiveIncome">
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ComprehensiveIncome" xlink:label="loc_ifrs-full_ComprehensiveIncome" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProfitLoss" xlink:label="loc_ifrs-full_ProfitLoss" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_ComprehensiveIncome" xlink:to="loc_ifrs-full_ProfitLoss" use="optional" order="1" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:label="loc_ifrs-full_IncomeTaxExpenseContinuingOperations" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLoss" xlink:to="loc_ifrs-full_IncomeTaxExpenseContinuingOperations" use="optional" order="2" weight="-1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProfitLossBeforeTax" xlink:label="loc_ifrs-full_ProfitLossBeforeTax" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLoss" xlink:to="loc_ifrs-full_ProfitLossBeforeTax" use="optional" order="3" weight="1" />
<loc xlink:type="locator" xlink:href="213800C5UOZHUTNUGA28-2021-12-31.xsd#alfa_ProfitBeforeNetFinanceCostsAndTax" xlink:label="loc_ALFA_ProfitBeforeNetFinanceCostsAndTax" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLossBeforeTax" xlink:to="loc_ALFA_ProfitBeforeNetFinanceCostsAndTax" use="optional" order="4" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProfitLossFromOperatingActivities" xlink:label="loc_ifrs-full_ProfitLossFromOperatingActivities" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ALFA_ProfitBeforeNetFinanceCostsAndTax" xlink:to="loc_ifrs-full_ProfitLossFromOperatingActivities" use="optional" order="5" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_GrossProfit" xlink:label="loc_ifrs-full_GrossProfit" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLossFromOperatingActivities" xlink:to="loc_ifrs-full_GrossProfit" use="optional" order="6" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_Revenue" xlink:label="loc_ifrs-full_Revenue" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_GrossProfit" xlink:to="loc_ifrs-full_Revenue" use="optional" order="7" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CostOfSales" xlink:label="loc_ifrs-full_CostOfSales" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_GrossProfit" xlink:to="loc_ifrs-full_CostOfSales" use="optional" order="8" weight="-1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_SellingGeneralAndAdministrativeExpense" xlink:label="loc_ifrs-full_SellingGeneralAndAdministrativeExpense" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLossFromOperatingActivities" xlink:to="loc_ifrs-full_SellingGeneralAndAdministrativeExpense" use="optional" order="9" weight="-1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherIncome" xlink:label="loc_ifrs-full_OtherIncome" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLossFromOperatingActivities" xlink:to="loc_ifrs-full_OtherIncome" use="optional" order="10" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ShareOfProfitLossOfJointVenturesAccountedForUsingEquityMethod" xlink:label="loc_ifrs-full_ShareOfProfitLossOfJointVenturesAccountedForUsingEquityMethod" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ALFA_ProfitBeforeNetFinanceCostsAndTax" xlink:to="loc_ifrs-full_ShareOfProfitLossOfJointVenturesAccountedForUsingEquityMethod" use="optional" order="11" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_FinanceIncome" xlink:label="loc_ifrs-full_FinanceIncome" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLossBeforeTax" xlink:to="loc_ifrs-full_FinanceIncome" use="optional" order="12" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_FinanceCosts" xlink:label="loc_ifrs-full_FinanceCosts" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLossBeforeTax" xlink:to="loc_ifrs-full_FinanceCosts" use="optional" order="13" weight="-1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherComprehensiveIncome" xlink:label="loc_ifrs-full_OtherComprehensiveIncome" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_ComprehensiveIncome" xlink:to="loc_ifrs-full_OtherComprehensiveIncome" use="optional" order="14" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_OtherComprehensiveIncome" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" use="optional" order="15" weight="1" />
</calculationLink>
<calculationLink xlink:type="extended" xlink:role="http://www.alfasystems.com/role/ConsolidatedStatementOfFinancialPosition">
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_Assets" xlink:label="loc_ifrs-full_Assets" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NoncurrentAssets" xlink:label="loc_ifrs-full_NoncurrentAssets" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_Assets" xlink:to="loc_ifrs-full_NoncurrentAssets" use="optional" order="1" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_Goodwill" xlink:label="loc_ifrs-full_Goodwill" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentAssets" xlink:to="loc_ifrs-full_Goodwill" use="optional" order="2" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherIntangibleAssets" xlink:label="loc_ifrs-full_OtherIntangibleAssets" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentAssets" xlink:to="loc_ifrs-full_OtherIntangibleAssets" use="optional" order="3" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_PropertyPlantAndEquipment" xlink:label="loc_ifrs-full_PropertyPlantAndEquipment" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentAssets" xlink:to="loc_ifrs-full_PropertyPlantAndEquipment" use="optional" order="4" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_RightofuseAssets" xlink:label="loc_ifrs-full_RightofuseAssets" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentAssets" xlink:to="loc_ifrs-full_RightofuseAssets" use="optional" order="5" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_DeferredTaxAssets" xlink:label="loc_ifrs-full_DeferredTaxAssets" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentAssets" xlink:to="loc_ifrs-full_DeferredTaxAssets" use="optional" order="6" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_InvestmentsInJointVentures" xlink:label="loc_ifrs-full_InvestmentsInJointVentures" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentAssets" xlink:to="loc_ifrs-full_InvestmentsInJointVentures" use="optional" order="7" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentAssets" xlink:label="loc_ifrs-full_CurrentAssets" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_Assets" xlink:to="loc_ifrs-full_CurrentAssets" use="optional" order="8" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentTradeReceivables" xlink:label="loc_ifrs-full_CurrentTradeReceivables" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentAssets" xlink:to="loc_ifrs-full_CurrentTradeReceivables" use="optional" order="9" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentAccruedIncome" xlink:label="loc_ifrs-full_CurrentAccruedIncome" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentAssets" xlink:to="loc_ifrs-full_CurrentAccruedIncome" use="optional" order="10" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentPrepayments" xlink:label="loc_ifrs-full_CurrentPrepayments" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentAssets" xlink:to="loc_ifrs-full_CurrentPrepayments" use="optional" order="11" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherCurrentReceivables" xlink:label="loc_ifrs-full_OtherCurrentReceivables" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentAssets" xlink:to="loc_ifrs-full_OtherCurrentReceivables" use="optional" order="12" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashAndCashEquivalents" xlink:label="loc_ifrs-full_CashAndCashEquivalents" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentAssets" xlink:to="loc_ifrs-full_CashAndCashEquivalents" use="optional" order="13" weight="1" />
</calculationLink>
<calculationLink xlink:type="extended" xlink:role="http://www.alfasystems.com/role/ConsolidatedStatementOfFinancialPosition">
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_EquityAndLiabilities" xlink:label="loc_ifrs-full_EquityAndLiabilities" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_Liabilities" xlink:label="loc_ifrs-full_Liabilities" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_EquityAndLiabilities" xlink:to="loc_ifrs-full_Liabilities" use="optional" order="14" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NoncurrentLiabilities" xlink:label="loc_ifrs-full_NoncurrentLiabilities" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_Liabilities" xlink:to="loc_ifrs-full_NoncurrentLiabilities" use="optional" order="15" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NoncurrentLeaseLiabilities" xlink:label="loc_ifrs-full_NoncurrentLeaseLiabilities" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentLiabilities" xlink:to="loc_ifrs-full_NoncurrentLeaseLiabilities" use="optional" order="16" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherLongtermProvisions" xlink:label="loc_ifrs-full_OtherLongtermProvisions" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentLiabilities" xlink:to="loc_ifrs-full_OtherLongtermProvisions" use="optional" order="17" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentLiabilities" xlink:label="loc_ifrs-full_CurrentLiabilities" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_Liabilities" xlink:to="loc_ifrs-full_CurrentLiabilities" use="optional" order="18" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_TradeAndOtherCurrentPayables" xlink:label="loc_ifrs-full_TradeAndOtherCurrentPayables" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentLiabilities" xlink:to="loc_ifrs-full_TradeAndOtherCurrentPayables" use="optional" order="19" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentTaxLiabilitiesCurrent" xlink:label="loc_ifrs-full_CurrentTaxLiabilitiesCurrent" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentLiabilities" xlink:to="loc_ifrs-full_CurrentTaxLiabilitiesCurrent" use="optional" order="20" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentLeaseLiabilities" xlink:label="loc_ifrs-full_CurrentLeaseLiabilities" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentLiabilities" xlink:to="loc_ifrs-full_CurrentLeaseLiabilities" use="optional" order="21" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentContractLiabilities" xlink:label="loc_ifrs-full_CurrentContractLiabilities" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentLiabilities" xlink:to="loc_ifrs-full_CurrentContractLiabilities" use="optional" order="22" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_Equity" xlink:label="loc_ifrs-full_Equity" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_EquityAndLiabilities" xlink:to="loc_ifrs-full_Equity" use="optional" order="23" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_IssuedCapital" xlink:label="loc_ifrs-full_IssuedCapital" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_Equity" xlink:to="loc_ifrs-full_IssuedCapital" use="optional" order="24" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ReserveOfExchangeDifferencesOnTranslation" xlink:label="loc_ifrs-full_ReserveOfExchangeDifferencesOnTranslation" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_Equity" xlink:to="loc_ifrs-full_ReserveOfExchangeDifferencesOnTranslation" use="optional" order="25" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_RetainedEarnings" xlink:label="loc_ifrs-full_RetainedEarnings" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_Equity" xlink:to="loc_ifrs-full_RetainedEarnings" use="optional" order="26" weight="1" />
<loc xlink:type="locator" xlink:href="213800C5UOZHUTNUGA28-2021-12-31.xsd#alfa_OwnShares" xlink:label="loc_ALFA_OwnShares" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_Equity" xlink:to="loc_ALFA_OwnShares" use="optional" order="27" weight="-1" />
</calculationLink>
<calculationLink xlink:type="extended" xlink:role="http://www.alfasystems.com/role/ConsolidatedStatementOfChangesInEquity">
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ComprehensiveIncome" xlink:label="loc_ifrs-full_ComprehensiveIncome" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProfitLoss" xlink:label="loc_ifrs-full_ProfitLoss" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_ComprehensiveIncome" xlink:to="loc_ifrs-full_ProfitLoss" use="optional" order="1" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherComprehensiveIncome" xlink:label="loc_ifrs-full_OtherComprehensiveIncome" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_ComprehensiveIncome" xlink:to="loc_ifrs-full_OtherComprehensiveIncome" use="optional" order="2" weight="1" />
</calculationLink>
<calculationLink xlink:type="extended" xlink:role="http://www.alfasystems.com/role/ConsolidatedStatementOfCashFlows">
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:label="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:label="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:to="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" use="optional" order="1" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:label="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:to="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" use="optional" order="2" weight="-1" />
<loc xlink:type="locator" xlink:href="213800C5UOZHUTNUGA28-2021-12-31.xsd#alfa_PurchasesOfComputerSoftwareClassifiedAsInvestingActivities" xlink:label="loc_ALFA_PurchasesOfComputerSoftwareClassifiedAsInvestingActivities" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:to="loc_ALFA_PurchasesOfComputerSoftwareClassifiedAsInvestingActivities" use="optional" order="3" weight="-1" />
<loc xlink:type="locator" xlink:href="213800C5UOZHUTNUGA28-2021-12-31.xsd#alfa_PaymentsForInternallyDevelopedSoftwareClassifiedAsInvestingActivities" xlink:label="loc_ALFA_PaymentsForInternallyDevelopedSoftwareClassifiedAsInvestingActivities" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:to="loc_ALFA_PaymentsForInternallyDevelopedSoftwareClassifiedAsInvestingActivities" use="optional" order="4" weight="-1" />
<loc xlink:type="locator" xlink:href="213800C5UOZHUTNUGA28-2021-12-31.xsd#alfa_InvestmentInJointVentureClassifiedAsInvestingActivities" xlink:label="loc_ALFA_InvestmentInJointVentureClassifiedAsInvestingActivities" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:to="loc_ALFA_InvestmentInJointVentureClassifiedAsInvestingActivities" use="optional" order="5" weight="-1" />
<loc xlink:type="locator" xlink:href="213800C5UOZHUTNUGA28-2021-12-31.xsd#alfa_LoanToJointVentureClassifiedAsInvestingActivities" xlink:label="loc_ALFA_LoanToJointVentureClassifiedAsInvestingActivities" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:to="loc_ALFA_LoanToJointVentureClassifiedAsInvestingActivities" use="optional" order="6" weight="-1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_InterestReceivedClassifiedAsInvestingActivities" xlink:label="loc_ifrs-full_InterestReceivedClassifiedAsInvestingActivities" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:to="loc_ifrs-full_InterestReceivedClassifiedAsInvestingActivities" use="optional" order="7" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:to="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities" use="optional" order="8" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities" xlink:label="loc_ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:to="loc_ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities" use="optional" order="9" weight="-1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:label="loc_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:to="loc_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" use="optional" order="10" weight="-1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:label="loc_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:to="loc_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" use="optional" order="11" weight="-1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:to="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities" use="optional" order="12" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashFlowsFromUsedInOperations" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperations" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:to="loc_ifrs-full_CashFlowsFromUsedInOperations" use="optional" order="13" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProfitLossFromOperatingActivities" xlink:label="loc_ifrs-full_ProfitLossFromOperatingActivities" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperations" xlink:to="loc_ifrs-full_ProfitLossFromOperatingActivities" use="optional" order="14" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProfitLossBeforeTax" xlink:label="loc_ifrs-full_ProfitLossBeforeTax" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLossFromOperatingActivities" xlink:to="loc_ifrs-full_ProfitLossBeforeTax" use="optional" order="15" weight="1" />
<loc xlink:type="locator" xlink:href="213800C5UOZHUTNUGA28-2021-12-31.xsd#alfa_AdjustmentsForNetFinanceCosts" xlink:label="loc_ALFA_AdjustmentsForNetFinanceCosts" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLossFromOperatingActivities" xlink:to="loc_ALFA_AdjustmentsForNetFinanceCosts" use="optional" order="16" weight="-1" />
<loc xlink:type="locator" xlink:href="213800C5UOZHUTNUGA28-2021-12-31.xsd#alfa_ShareOfNetLossOfJointVentures" xlink:label="loc_ALFA_ShareOfNetLossOfJointVentures" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLossFromOperatingActivities" xlink:to="loc_ALFA_ShareOfNetLossOfJointVentures" use="optional" order="17" weight="-1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_AdjustmentsForSharebasedPayments" xlink:label="loc_ifrs-full_AdjustmentsForSharebasedPayments" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperations" xlink:to="loc_ifrs-full_AdjustmentsForSharebasedPayments" use="optional" order="18" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment" xlink:label="loc_ifrs-full_AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperations" xlink:to="loc_ifrs-full_AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment" use="optional" order="19" weight="-1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_AdjustmentsForProvisions" xlink:label="loc_ifrs-full_AdjustmentsForProvisions" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperations" xlink:to="loc_ifrs-full_AdjustmentsForProvisions" use="optional" order="20" weight="1" />
<loc xlink:type="locator" xlink:href="213800C5UOZHUTNUGA28-2021-12-31.xsd#alfa_IncreaseOrDecreaseInContractLiabilities" xlink:label="loc_ALFA_IncreaseOrDecreaseInContractLiabilities" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperations" xlink:to="loc_ALFA_IncreaseOrDecreaseInContractLiabilities" use="optional" order="21" weight="-1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperations" xlink:to="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables" use="optional" order="22" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperations" xlink:to="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" use="optional" order="23" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_AdjustmentsForDepreciationExpense" xlink:label="loc_ifrs-full_AdjustmentsForDepreciationExpense" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperations" xlink:to="loc_ifrs-full_AdjustmentsForDepreciationExpense" use="optional" order="24" weight="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_AdjustmentsForAmortisationExpense" xlink:label="loc_ifrs-full_AdjustmentsForAmortisationExpense" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperations" xlink:to="loc_ifrs-full_AdjustmentsForAmortisationExpense" use="optional" order="25" weight="1" />
<loc xlink:type="locator" xlink:href="213800C5UOZHUTNUGA28-2021-12-31.xsd#alfa_InterestElementOnLeasePaymentsClassifiedAsOperatingActivities" xlink:label="loc_ALFA_InterestElementOnLeasePaymentsClassifiedAsOperatingActivities" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:to="loc_ALFA_InterestElementOnLeasePaymentsClassifiedAsOperatingActivities" use="optional" order="26" weight="-1" />
<loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities" xlink:label="loc_ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities" />
<calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:to="loc_ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities" use="optional" order="27" weight="-1" />
</calculationLink>
</linkbase>