<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:b5398c17-f119-4e65-8457-7fbac71e425c,g:ee448860-6362-4244-98e6-be9a2dd33b6e-->
<link:linkbase xmlns:link="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">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:arcroleRef arcroleURI="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/arcrole/esma-arcrole-2018-11-21.xsd#wider-narrower"/>
  <link:roleRef roleURI="http://www.vanlanschotkempen.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINEQUITYStatement" xlink:type="simple" xlink:href="vlk-2025-12-31.xsd#CONSOLIDATEDSTATEMENTOFCHANGESINEQUITYStatement"/>
  <link:definitionLink xlink:role="http://www.vanlanschotkempen.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINEQUITYStatement" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfChangesInEquityAbstract_dc21c4bf-a795-45c6-bf0a-e3e5e3029b14" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_StatementOfChangesInEquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfChangesInEquityTable_b7b7c40e-6f03-4009-b475-864af793e79c" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_StatementOfChangesInEquityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_StatementOfChangesInEquityAbstract_dc21c4bf-a795-45c6-bf0a-e3e5e3029b14" xlink:to="loc_ifrs-full_StatementOfChangesInEquityTable_b7b7c40e-6f03-4009-b475-864af793e79c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="scenario"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComponentsOfEquityAxis_fb8deed8-f5b0-44a8-885a-57e3d0c87b72" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComponentsOfEquityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_StatementOfChangesInEquityTable_b7b7c40e-6f03-4009-b475-864af793e79c" xlink:to="loc_ifrs-full_ComponentsOfEquityAxis_fb8deed8-f5b0-44a8-885a-57e3d0c87b72" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComponentsOfEquityDomain_0667e1a9-cfee-4898-9ba4-34376eda2b7f" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComponentsOfEquityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ComponentsOfEquityAxis_fb8deed8-f5b0-44a8-885a-57e3d0c87b72" xlink:to="loc_ifrs-full_ComponentsOfEquityDomain_0667e1a9-cfee-4898-9ba4-34376eda2b7f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IssuedCapitalMember_902c8713-b056-4ad0-8b88-a904f7f8b5cc" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IssuedCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_0667e1a9-cfee-4898-9ba4-34376eda2b7f" xlink:to="loc_ifrs-full_IssuedCapitalMember_902c8713-b056-4ad0-8b88-a904f7f8b5cc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TreasurySharesMember_b3a68fc1-5d26-4d4e-999f-98c378bdf9f7" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TreasurySharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_0667e1a9-cfee-4898-9ba4-34376eda2b7f" xlink:to="loc_ifrs-full_TreasurySharesMember_b3a68fc1-5d26-4d4e-999f-98c378bdf9f7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SharePremiumMember_45e70276-c19e-4ed8-9fdd-734ce561e3db" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SharePremiumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_0667e1a9-cfee-4898-9ba4-34376eda2b7f" xlink:to="loc_ifrs-full_SharePremiumMember_45e70276-c19e-4ed8-9fdd-734ce561e3db" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherReservesMember_d6770b4d-9f46-459b-b21b-66bd2c544dce" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherReservesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_0667e1a9-cfee-4898-9ba4-34376eda2b7f" xlink:to="loc_ifrs-full_OtherReservesMember_d6770b4d-9f46-459b-b21b-66bd2c544dce" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RetainedEarningsProfitLossForReportingPeriodMember_95355cd9-7712-4b8a-8bc0-d4f83524b240" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RetainedEarningsProfitLossForReportingPeriodMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_0667e1a9-cfee-4898-9ba4-34376eda2b7f" xlink:to="loc_ifrs-full_RetainedEarningsProfitLossForReportingPeriodMember_95355cd9-7712-4b8a-8bc0-d4f83524b240" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityAttributableToOwnersOfParentMember_78946293-3b42-43fc-8120-641a63f1adbe" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityAttributableToOwnersOfParentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_0667e1a9-cfee-4898-9ba4-34376eda2b7f" xlink:to="loc_ifrs-full_EquityAttributableToOwnersOfParentMember_78946293-3b42-43fc-8120-641a63f1adbe" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_NonControllingInterestsFromCapitalSecuritiesMember_c65d3ce7-ac0d-4baa-bc18-9a11ba3a17bd" xlink:href="vlk-2025-12-31.xsd#vlk_NonControllingInterestsFromCapitalSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_0667e1a9-cfee-4898-9ba4-34376eda2b7f" xlink:to="loc_vlk_NonControllingInterestsFromCapitalSecuritiesMember_c65d3ce7-ac0d-4baa-bc18-9a11ba3a17bd" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncontrollingInterestsMember_019ba2a3-b24f-7c33-9e41-cde11f90ec29" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncontrollingInterestsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_0667e1a9-cfee-4898-9ba4-34376eda2b7f" xlink:to="loc_ifrs-full_NoncontrollingInterestsMember_019ba2a3-b24f-7c33-9e41-cde11f90ec29" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfChangesInEquityLineItems_dc2b768a-70cc-4f0b-b56a-b44c5fc241ab" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_StatementOfChangesInEquityLineItems"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityAbstract_dc21c4bf-a795-45c6-bf0a-e3e5e3029b14" xlink:to="loc_ifrs-full_StatementOfChangesInEquityLineItems_dc2b768a-70cc-4f0b-b56a-b44c5fc241ab" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Equity_78fd36f2-a3ca-4309-9eb6-00026727f5cc" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Equity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_dc2b768a-70cc-4f0b-b56a-b44c5fc241ab" xlink:to="loc_ifrs-full_Equity_78fd36f2-a3ca-4309-9eb6-00026727f5cc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLoss_840f7d0c-46c5-4f9d-aa6d-e35fe47c1718" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_dc2b768a-70cc-4f0b-b56a-b44c5fc241ab" xlink:to="loc_ifrs-full_ProfitLoss_840f7d0c-46c5-4f9d-aa6d-e35fe47c1718" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncome_57a14bc2-ce2b-4541-9fc4-d021092361d4" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_dc2b768a-70cc-4f0b-b56a-b44c5fc241ab" xlink:to="loc_ifrs-full_OtherComprehensiveIncome_57a14bc2-ce2b-4541-9fc4-d021092361d4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncome_c081125b-4c66-47ac-825d-6bb9500b39d7" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComprehensiveIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_dc2b768a-70cc-4f0b-b56a-b44c5fc241ab" xlink:to="loc_ifrs-full_ComprehensiveIncome_c081125b-4c66-47ac-825d-6bb9500b39d7" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SaleOrIssueOfTreasuryShares_41afd619-c06f-4d44-a13f-dfefd92f89e0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SaleOrIssueOfTreasuryShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_dc2b768a-70cc-4f0b-b56a-b44c5fc241ab" xlink:to="loc_ifrs-full_SaleOrIssueOfTreasuryShares_41afd619-c06f-4d44-a13f-dfefd92f89e0" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughAppropriationOfRetainedEarnings_2ff957e9-dd80-42cc-b614-fcb676b18a3b" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughAppropriationOfRetainedEarnings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_dc2b768a-70cc-4f0b-b56a-b44c5fc241ab" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughAppropriationOfRetainedEarnings_2ff957e9-dd80-42cc-b614-fcb676b18a3b" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchaseOfTreasuryShares_d451277b-984e-4964-8971-00fe16bf98c4" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PurchaseOfTreasuryShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_dc2b768a-70cc-4f0b-b56a-b44c5fc241ab" xlink:to="loc_ifrs-full_PurchaseOfTreasuryShares_d451277b-984e-4964-8971-00fe16bf98c4" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_IncreaseDecreaseThroughTransfersToFromSharePremium_019c93f8-b423-7f93-90b9-956ec79ffae9" xlink:href="vlk-2025-12-31.xsd#vlk_IncreaseDecreaseThroughTransfersToFromSharePremium"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_dc2b768a-70cc-4f0b-b56a-b44c5fc241ab" xlink:to="loc_vlk_IncreaseDecreaseThroughTransfersToFromSharePremium_019c93f8-b423-7f93-90b9-956ec79ffae9" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsPaid_785cc930-e00f-4968-86b0-030e83752f48" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DividendsPaid"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_dc2b768a-70cc-4f0b-b56a-b44c5fc241ab" xlink:to="loc_ifrs-full_DividendsPaid_785cc930-e00f-4968-86b0-030e83752f48" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity_d0c121a6-8b3b-43b7-92d1-739206c738ee" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_dc2b768a-70cc-4f0b-b56a-b44c5fc241ab" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity_d0c121a6-8b3b-43b7-92d1-739206c738ee" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_IncreaseDecreaseThroughOtherChangesEquity_c1b4ce12-9658-41d8-9161-d8cbe6e5ed43" xlink:href="vlk-2025-12-31.xsd#vlk_IncreaseDecreaseThroughOtherChangesEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_dc2b768a-70cc-4f0b-b56a-b44c5fc241ab" xlink:to="loc_vlk_IncreaseDecreaseThroughOtherChangesEquity_c1b4ce12-9658-41d8-9161-d8cbe6e5ed43" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Equity_7517573c-7b69-4ac7-9cb0-e05f1b139ea7" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Equity"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.vanlanschotkempen.com/role/CONSOLIDATEDSTATEMENTOFCASHFLOWSParentheticalStatement" xlink:type="simple" xlink:href="vlk-2025-12-31.xsd#CONSOLIDATEDSTATEMENTOFCASHFLOWSParentheticalStatement"/>
  <link:definitionLink xlink:role="http://www.vanlanschotkempen.com/role/CONSOLIDATEDSTATEMENTOFCASHFLOWSParentheticalStatement" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfCashFlowsAbstract_774595c2-5a6c-442a-adcd-725975c9988d" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_StatementOfCashFlowsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable_d2fc65dd-7372-4179-a2ca-0cafd2fd1ffb" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_StatementOfCashFlowsAbstract_774595c2-5a6c-442a-adcd-725975c9988d" xlink:to="loc_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable_d2fc65dd-7372-4179-a2ca-0cafd2fd1ffb" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="scenario"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LiabilitiesArisingFromFinancingActivitiesAxis_e895aebd-0528-4c2b-985d-eddef7d08901" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LiabilitiesArisingFromFinancingActivitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable_d2fc65dd-7372-4179-a2ca-0cafd2fd1ffb" xlink:to="loc_ifrs-full_LiabilitiesArisingFromFinancingActivitiesAxis_e895aebd-0528-4c2b-985d-eddef7d08901" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LiabilitiesArisingFromFinancingActivitiesDomain_2addc548-c2cc-4ba7-9a2f-a022b9de691f" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LiabilitiesArisingFromFinancingActivitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_LiabilitiesArisingFromFinancingActivitiesAxis_e895aebd-0528-4c2b-985d-eddef7d08901" xlink:to="loc_ifrs-full_LiabilitiesArisingFromFinancingActivitiesDomain_2addc548-c2cc-4ba7-9a2f-a022b9de691f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_SubordinatedLiabilitiesMember_807c84bc-8381-4aeb-beec-3293d7b48236" xlink:href="vlk-2025-12-31.xsd#vlk_SubordinatedLiabilitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LiabilitiesArisingFromFinancingActivitiesDomain_2addc548-c2cc-4ba7-9a2f-a022b9de691f" xlink:to="loc_vlk_SubordinatedLiabilitiesMember_807c84bc-8381-4aeb-beec-3293d7b48236" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DebtSecuritiesMember_16932e5b-2d07-4f0a-8d2b-907dce758c72" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DebtSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LiabilitiesArisingFromFinancingActivitiesDomain_2addc548-c2cc-4ba7-9a2f-a022b9de691f" xlink:to="loc_ifrs-full_DebtSecuritiesMember_16932e5b-2d07-4f0a-8d2b-907dce758c72" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember_cbc968e0-a1e0-4fad-b337-5fe433d827f2" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LiabilitiesArisingFromFinancingActivitiesDomain_2addc548-c2cc-4ba7-9a2f-a022b9de691f" xlink:to="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember_cbc968e0-a1e0-4fad-b337-5fe433d827f2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LeaseLiabilitiesMember_019c47bb-e8d6-7dc8-9c5e-50ea02553696" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LeaseLiabilitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LiabilitiesArisingFromFinancingActivitiesDomain_2addc548-c2cc-4ba7-9a2f-a022b9de691f" xlink:to="loc_ifrs-full_LeaseLiabilitiesMember_019c47bb-e8d6-7dc8-9c5e-50ea02553696" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis_019c8c30-051d-719a-a828-2ff382f67e30" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable_d2fc65dd-7372-4179-a2ca-0cafd2fd1ffb" xlink:to="loc_ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis_019c8c30-051d-719a-a828-2ff382f67e30" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RestatedMember_019c8c30-051d-7621-a6bc-26fcbfdd424f" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RestatedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis_019c8c30-051d-719a-a828-2ff382f67e30" xlink:to="loc_ifrs-full_RestatedMember_019c8c30-051d-7621-a6bc-26fcbfdd424f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialEffectOfCorrectionsOfAccountingErrorsMember_019c8c30-3492-79f0-aa71-78da0a6183bc" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialEffectOfCorrectionsOfAccountingErrorsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RestatedMember_019c8c30-051d-7621-a6bc-26fcbfdd424f" xlink:to="loc_ifrs-full_FinancialEffectOfCorrectionsOfAccountingErrorsMember_019c8c30-3492-79f0-aa71-78da0a6183bc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems_136d361e-15ac-4d4c-b34e-3a4b8f6a81c5" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfCashFlowsAbstract_774595c2-5a6c-442a-adcd-725975c9988d" xlink:to="loc_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems_136d361e-15ac-4d4c-b34e-3a4b8f6a81c5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LiabilitiesArisingFromFinancingActivities_1d343bc2-6129-48f4-81f2-668becbbb9fa" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LiabilitiesArisingFromFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems_136d361e-15ac-4d4c-b34e-3a4b8f6a81c5" xlink:to="loc_ifrs-full_LiabilitiesArisingFromFinancingActivities_1d343bc2-6129-48f4-81f2-668becbbb9fa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromFinancingActivities_defd7012-5bab-43de-9036-e84b1e581741" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems_136d361e-15ac-4d4c-b34e-3a4b8f6a81c5" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromFinancingActivities_defd7012-5bab-43de-9036-e84b1e581741" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughChangesInFairValuesLiabilitiesArisingFromFinancingActivities_019c4771-ec46-732e-8e03-2e28ae4a797c" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughChangesInFairValuesLiabilitiesArisingFromFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems_136d361e-15ac-4d4c-b34e-3a4b8f6a81c5" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughChangesInFairValuesLiabilitiesArisingFromFinancingActivities_019c4771-ec46-732e-8e03-2e28ae4a797c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LiabilitiesArisingFromFinancingActivities_25e392c6-6efd-43bb-88ac-8137a1d2885a" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LiabilitiesArisingFromFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInDebtInstrumentsIssued_019c8c30-051d-71ee-8971-c78e32037692" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInDebtInstrumentsIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems_136d361e-15ac-4d4c-b34e-3a4b8f6a81c5" xlink:to="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInDebtInstrumentsIssued_019c8c30-051d-71ee-8971-c78e32037692" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_AdjustmentsForIncreaseDecreaseInAmountsDueFromToBanks_019c8c61-c332-7ead-b376-04802fa8469d" xlink:href="vlk-2025-12-31.xsd#vlk_AdjustmentsForIncreaseDecreaseInAmountsDueFromToBanks"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems_136d361e-15ac-4d4c-b34e-3a4b8f6a81c5" xlink:to="loc_vlk_AdjustmentsForIncreaseDecreaseInAmountsDueFromToBanks_019c8c61-c332-7ead-b376-04802fa8469d" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_019c8c5e-e5b4-7cca-b137-65c70ea14f95" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems_136d361e-15ac-4d4c-b34e-3a4b8f6a81c5" xlink:to="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_019c8c5e-e5b4-7cca-b137-65c70ea14f95" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="https://www.esma.europa.eu/xbrl/role/cor/esef_role-999999" xlink:type="simple" xlink:href="https://www.esma.europa.eu/taxonomy/2024-03-27/esef_cor.xsd#esef_role-999999"/>
  <link:definitionLink xlink:role="https://www.esma.europa.eu/xbrl/role/cor/esef_role-999999" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:href="https://www.esma.europa.eu/taxonomy/2024-03-27/esef_cor.xsd#esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashAndBankBalancesAtCentralBanks_2453ca25-71b4-4215-88f8-577239b8c9b4NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashAndBankBalancesAtCentralBanks"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CashAndBankBalancesAtCentralBanks_2453ca25-71b4-4215-88f8-577239b8c9b4NotDimensionallyQualified" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LoansAndAdvancesToBanks_019ba27c-1066-70b6-b48e-1a799817b256NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LoansAndAdvancesToBanks"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_LoansAndAdvancesToBanks_019ba27c-1066-70b6-b48e-1a799817b256NotDimensionallyQualified" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativeFinancialAssets_be884b7d-5b93-42f3-89a5-62dfbf2eb1c6NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DerivativeFinancialAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DerivativeFinancialAssets_be884b7d-5b93-42f3-89a5-62dfbf2eb1c6NotDimensionallyQualified" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss_4f20e96e-5530-4d34-82ff-95a8411c4c74NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss_4f20e96e-5530-4d34-82ff-95a8411c4c74NotDimensionallyQualified" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncome_a48e5462-2685-4cdf-ae05-4c0a7ce0c795NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncome_a48e5462-2685-4cdf-ae05-4c0a7ce0c795NotDimensionallyQualified" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LoansAndAdvancesToCustomers_62e636f2-ee64-4b29-9037-77aef4c15dc5NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LoansAndAdvancesToCustomers"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_LoansAndAdvancesToCustomers_62e636f2-ee64-4b29-9037-77aef4c15dc5NotDimensionallyQualified" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtAmortisedCost_fcb19bcf-e03f-40aa-af31-a999f1a9b8b6NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialAssetsAtAmortisedCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_FinancialAssetsAtAmortisedCost_fcb19bcf-e03f-40aa-af31-a999f1a9b8b6NotDimensionallyQualified" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod_480bff71-553a-4b13-8d7b-1239724b942cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod_480bff71-553a-4b13-8d7b-1239724b942cNotDimensionallyQualified" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PropertyPlantAndEquipment_509c8e37-8ae2-4d1e-a437-8f8cbfe64a12NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_PropertyPlantAndEquipment_509c8e37-8ae2-4d1e-a437-8f8cbfe64a12NotDimensionallyQualified" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IntangibleAssetsAndGoodwill_634cbe4c-4f15-4e98-a1d0-ada5d55f79d4NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IntangibleAssetsAndGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IntangibleAssetsAndGoodwill_634cbe4c-4f15-4e98-a1d0-ada5d55f79d4NotDimensionallyQualified" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentTaxAssets_f67afb85-181a-4c45-beac-4c35c3f8b6b1NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentTaxAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CurrentTaxAssets_f67afb85-181a-4c45-beac-4c35c3f8b6b1NotDimensionallyQualified" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxAssets_f4fec935-08d0-4c0c-83bc-d521a1c97674NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DeferredTaxAssets_f4fec935-08d0-4c0c-83bc-d521a1c97674NotDimensionallyQualified" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherAssets_9e7310d1-1e8f-4763-9a4c-a742d49dcf6fNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherAssets_9e7310d1-1e8f-4763-9a4c-a742d49dcf6fNotDimensionallyQualified" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Assets_3e1664de-245a-48f1-8104-ef30100edd82NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Assets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_Assets_3e1664de-245a-48f1-8104-ef30100edd82NotDimensionallyQualified" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DepositsFromBanks_019ba27d-1975-77ca-96a4-d336c99a41baNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DepositsFromBanks"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DepositsFromBanks_019ba27d-1975-77ca-96a4-d336c99a41baNotDimensionallyQualified" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DepositsFromCustomers_eacc3b41-54d9-4f9a-a683-545f043fc6b5NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DepositsFromCustomers"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DepositsFromCustomers_eacc3b41-54d9-4f9a-a683-545f043fc6b5NotDimensionallyQualified" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativeFinancialLiabilities_43678eeb-120a-4e44-8539-ae0eab5b67e7NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DerivativeFinancialLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DerivativeFinancialLiabilities_43678eeb-120a-4e44-8539-ae0eab5b67e7NotDimensionallyQualified" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLoss_19d1088c-9e83-4a6f-a1c6-0bb169092b70NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLoss_19d1088c-9e83-4a6f-a1c6-0bb169092b70NotDimensionallyQualified" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DebtSecurities_d786de7b-4da6-4d2e-bd3a-d31d8596349dNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DebtSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DebtSecurities_d786de7b-4da6-4d2e-bd3a-d31d8596349dNotDimensionallyQualified" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Provisions_5100146e-ba75-4783-a38e-fec28b9b2e43NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Provisions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_Provisions_5100146e-ba75-4783-a38e-fec28b9b2e43NotDimensionallyQualified" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentTaxLiabilities_6d7bdd53-828d-41b8-bfba-cd0d47dcab09NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentTaxLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CurrentTaxLiabilities_6d7bdd53-828d-41b8-bfba-cd0d47dcab09NotDimensionallyQualified" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxLiabilities_e87a723c-303e-4fdd-a853-8bfcf91c345bNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DeferredTaxLiabilities_e87a723c-303e-4fdd-a853-8bfcf91c345bNotDimensionallyQualified" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherLiabilities_9b91d956-a5fb-45f7-b4fc-ee1709ecfb56NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherLiabilities_9b91d956-a5fb-45f7-b4fc-ee1709ecfb56NotDimensionallyQualified" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SubordinatedLiabilities_ce8d9c51-0137-4b78-aea5-b5dc7783d1efNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SubordinatedLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_SubordinatedLiabilities_ce8d9c51-0137-4b78-aea5-b5dc7783d1efNotDimensionallyQualified" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Liabilities_baf6cfee-1be4-4ab0-8ccf-321211468cc3NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Liabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_Liabilities_baf6cfee-1be4-4ab0-8ccf-321211468cc3NotDimensionallyQualified" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IssuedCapital_8d67e65d-4f62-4eff-96fc-6ee1411ae7d3NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IssuedCapital"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IssuedCapital_8d67e65d-4f62-4eff-96fc-6ee1411ae7d3NotDimensionallyQualified" xlink:type="arc" order="25"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TreasuryShares_4130bbc6-14a2-45da-8024-56c3030cce3cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TreasuryShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_TreasuryShares_4130bbc6-14a2-45da-8024-56c3030cce3cNotDimensionallyQualified" xlink:type="arc" order="26"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SharePremium_98552f0a-6946-463c-94c0-35fcec330486NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SharePremium"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_SharePremium_98552f0a-6946-463c-94c0-35fcec330486NotDimensionallyQualified" xlink:type="arc" order="27"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherReserves_46578f52-686b-41db-a94a-188bb7b91f2cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherReserves"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherReserves_46578f52-686b-41db-a94a-188bb7b91f2cNotDimensionallyQualified" xlink:type="arc" order="28"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RetainedEarningsProfitLossForReportingPeriod_9f020d84-e315-404e-88a3-22666e9b65f5NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RetainedEarningsProfitLossForReportingPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_RetainedEarningsProfitLossForReportingPeriod_9f020d84-e315-404e-88a3-22666e9b65f5NotDimensionallyQualified" xlink:type="arc" order="29"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityAttributableToOwnersOfParent_60c624ef-da49-4651-a0b4-dd27713ee99cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityAttributableToOwnersOfParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_EquityAttributableToOwnersOfParent_60c624ef-da49-4651-a0b4-dd27713ee99cNotDimensionallyQualified" xlink:type="arc" order="30"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_CapitalSecurities_dddd0338-baab-4c0c-97c1-c921b12c65c4NotDimensionallyQualified" xlink:href="vlk-2025-12-31.xsd#vlk_CapitalSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_vlk_CapitalSecurities_dddd0338-baab-4c0c-97c1-c921b12c65c4NotDimensionallyQualified" xlink:type="arc" order="31"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_RetainedEarningsAttributableToCapitalSecurities_d3ad8f8f-d457-4ee9-bea3-8539d102b53dNotDimensionallyQualified" xlink:href="vlk-2025-12-31.xsd#vlk_RetainedEarningsAttributableToCapitalSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_vlk_RetainedEarningsAttributableToCapitalSecurities_d3ad8f8f-d457-4ee9-bea3-8539d102b53dNotDimensionallyQualified" xlink:type="arc" order="32"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_EquityAttributableToCapitalSecurities_bac07672-244a-4958-961b-1e646483b18fNotDimensionallyQualified" xlink:href="vlk-2025-12-31.xsd#vlk_EquityAttributableToCapitalSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_vlk_EquityAttributableToCapitalSecurities_bac07672-244a-4958-961b-1e646483b18fNotDimensionallyQualified" xlink:type="arc" order="33"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_OtherNonControllingInterests_019bb778-f690-7743-923c-48cd5649b6deNotDimensionallyQualified" xlink:href="vlk-2025-12-31.xsd#vlk_OtherNonControllingInterests"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_vlk_OtherNonControllingInterests_019bb778-f690-7743-923c-48cd5649b6deNotDimensionallyQualified" xlink:type="arc" order="34"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_RetainedEarningsAttributableToOtherNonControllingInterests_0cd09499-917d-416f-8b69-c35aa7cbed2bNotDimensionallyQualified" xlink:href="vlk-2025-12-31.xsd#vlk_RetainedEarningsAttributableToOtherNonControllingInterests"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_vlk_RetainedEarningsAttributableToOtherNonControllingInterests_0cd09499-917d-416f-8b69-c35aa7cbed2bNotDimensionallyQualified" xlink:type="arc" order="35"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncontrollingInterests_019bb77c-39cf-7de1-8797-39d800bc9eafNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncontrollingInterests"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NoncontrollingInterests_019bb77c-39cf-7de1-8797-39d800bc9eafNotDimensionallyQualified" xlink:type="arc" order="36"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Equity_c6476f05-d721-47b6-9971-8171e4276225NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Equity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_Equity_c6476f05-d721-47b6-9971-8171e4276225NotDimensionallyQualified" xlink:type="arc" order="37"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityAndLiabilities_abe39bf7-0c95-44c8-ba9b-f206ca9f7c37NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityAndLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_EquityAndLiabilities_abe39bf7-0c95-44c8-ba9b-f206ca9f7c37NotDimensionallyQualified" xlink:type="arc" order="38"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestRevenueCalculatedUsingEffectiveInterestMethod_02d56b6c-1f3b-4004-a974-77fd1e744deaNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestRevenueCalculatedUsingEffectiveInterestMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_InterestRevenueCalculatedUsingEffectiveInterestMethod_02d56b6c-1f3b-4004-a974-77fd1e744deaNotDimensionallyQualified" xlink:type="arc" order="39"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestIncomeOnOtherFinancialAssets_a92cf0a5-6942-4b49-9129-0b1b364401ddNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestIncomeOnOtherFinancialAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_InterestIncomeOnOtherFinancialAssets_a92cf0a5-6942-4b49-9129-0b1b364401ddNotDimensionallyQualified" xlink:type="arc" order="40"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_InterestExpenseCalculatedUsingEffectiveInterestMethod_be8a6306-578d-4da0-8fb6-def337c269b0NotDimensionallyQualified" xlink:href="vlk-2025-12-31.xsd#vlk_InterestExpenseCalculatedUsingEffectiveInterestMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_vlk_InterestExpenseCalculatedUsingEffectiveInterestMethod_be8a6306-578d-4da0-8fb6-def337c269b0NotDimensionallyQualified" xlink:type="arc" order="41"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestExpenseOnOtherFinancialLiabilities_5d89dd6f-d4c5-4ab7-9063-13fea235bb80NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestExpenseOnOtherFinancialLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_InterestExpenseOnOtherFinancialLiabilities_5d89dd6f-d4c5-4ab7-9063-13fea235bb80NotDimensionallyQualified" xlink:type="arc" order="42"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestRevenueExpense_c47c3d37-0be6-4d8c-95d3-686fdb705749NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestRevenueExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_InterestRevenueExpense_c47c3d37-0be6-4d8c-95d3-686fdb705749NotDimensionallyQualified" xlink:type="arc" order="43"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod_3806e74e-61a7-4283-a5aa-402033f7a92aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod_3806e74e-61a7-4283-a5aa-402033f7a92aNotDimensionallyQualified" xlink:type="arc" order="44"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherIncomeExpenseFromSubsidiariesJointlyControlledEntitiesAndAssociates_a47c94c8-518d-42ab-8b4a-2af85e3624e2NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherIncomeExpenseFromSubsidiariesJointlyControlledEntitiesAndAssociates"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherIncomeExpenseFromSubsidiariesJointlyControlledEntitiesAndAssociates_a47c94c8-518d-42ab-8b4a-2af85e3624e2NotDimensionallyQualified" xlink:type="arc" order="45"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_IncomeFromInvestmentsAtFairValueThroughProfitOrLossAndAssociatesAccountedForUsingTheEquityMethod_c9d2ddd7-1342-48cb-87ce-6485475b6cabNotDimensionallyQualified" xlink:href="vlk-2025-12-31.xsd#vlk_IncomeFromInvestmentsAtFairValueThroughProfitOrLossAndAssociatesAccountedForUsingTheEquityMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_vlk_IncomeFromInvestmentsAtFairValueThroughProfitOrLossAndAssociatesAccountedForUsingTheEquityMethod_c9d2ddd7-1342-48cb-87ce-6485475b6cabNotDimensionallyQualified" xlink:type="arc" order="46"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FeeAndCommissionIncome_cb6b21c6-4a20-4c45-97c5-cf27409e4821NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FeeAndCommissionIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_FeeAndCommissionIncome_cb6b21c6-4a20-4c45-97c5-cf27409e4821NotDimensionallyQualified" xlink:type="arc" order="47"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FeeAndCommissionExpense_159b9375-33b4-4abc-9dc4-349b84881b7bNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FeeAndCommissionExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_FeeAndCommissionExpense_159b9375-33b4-4abc-9dc4-349b84881b7bNotDimensionallyQualified" xlink:type="arc" order="48"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FeeAndCommissionIncomeExpense_290bdda1-2f62-44a9-829f-330d9fa287b3NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FeeAndCommissionIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_FeeAndCommissionIncomeExpense_290bdda1-2f62-44a9-829f-330d9fa287b3NotDimensionallyQualified" xlink:type="arc" order="49"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_NetGainsLossesOnFinancialTransactions_623ac127-314a-4fdd-8078-baf3ac62072bNotDimensionallyQualified" xlink:href="vlk-2025-12-31.xsd#vlk_NetGainsLossesOnFinancialTransactions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_vlk_NetGainsLossesOnFinancialTransactions_623ac127-314a-4fdd-8078-baf3ac62072bNotDimensionallyQualified" xlink:type="arc" order="50"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherIncome_6a38e87a-1bb6-47ba-8ee9-ae5640501d5cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherIncome_6a38e87a-1bb6-47ba-8ee9-ae5640501d5cNotDimensionallyQualified" xlink:type="arc" order="51"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CostOfSales_019bb795-486d-748c-a480-79f2289b28eaNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CostOfSales"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CostOfSales_019bb795-486d-748c-a480-79f2289b28eaNotDimensionallyQualified" xlink:type="arc" order="52"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherOperatingIncomeExpense_73c4da3f-44f0-4f38-9590-8ec62c030157NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherOperatingIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherOperatingIncomeExpense_73c4da3f-44f0-4f38-9590-8ec62c030157NotDimensionallyQualified" xlink:type="arc" order="53"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RevenueAndOperatingIncome_44ead4e8-afe1-4f1d-9e59-7fddc5850bb0NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RevenueAndOperatingIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_RevenueAndOperatingIncome_44ead4e8-afe1-4f1d-9e59-7fddc5850bb0NotDimensionallyQualified" xlink:type="arc" order="54"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EmployeeBenefitsExpense_43c7d90b-6e83-407c-932d-2d4337056319NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EmployeeBenefitsExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_EmployeeBenefitsExpense_43c7d90b-6e83-407c-932d-2d4337056319NotDimensionallyQualified" xlink:type="arc" order="55"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdministrativeExpense_9deafd51-f321-4bde-9cb7-32bc8e5cc916NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdministrativeExpense_9deafd51-f321-4bde-9cb7-32bc8e5cc916NotDimensionallyQualified" xlink:type="arc" order="56"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_EmployeeBenefitExpenseAndAdministrativeExpenses_ceca7e31-7cf7-4cb8-8990-0f2a4401767eNotDimensionallyQualified" xlink:href="vlk-2025-12-31.xsd#vlk_EmployeeBenefitExpenseAndAdministrativeExpenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_vlk_EmployeeBenefitExpenseAndAdministrativeExpenses_ceca7e31-7cf7-4cb8-8990-0f2a4401767eNotDimensionallyQualified" xlink:type="arc" order="57"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DepreciationAndAmortisationExpense_4ce48043-50be-4d5d-a139-7c7de656538fNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DepreciationAndAmortisationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DepreciationAndAmortisationExpense_4ce48043-50be-4d5d-a139-7c7de656538fNotDimensionallyQualified" xlink:type="arc" order="58"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OperatingExpense_ebc65e71-2ae1-40ca-aeb4-c340a0f057a7NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OperatingExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OperatingExpense_ebc65e71-2ae1-40ca-aeb4-c340a0f057a7NotDimensionallyQualified" xlink:type="arc" order="59"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9_5c4983bf-b806-454b-8713-b70076f2dbaaNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9_5c4983bf-b806-454b-8713-b70076f2dbaaNotDimensionallyQualified" xlink:type="arc" order="60"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_2da6f483-e317-43b5-a33d-5fdb803c347eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_2da6f483-e317-43b5-a33d-5fdb803c347eNotDimensionallyQualified" xlink:type="arc" order="61"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExpenseByNature_8188ef94-1d0a-40cd-a494-6d2eb707db98NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExpenseByNature"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ExpenseByNature_8188ef94-1d0a-40cd-a494-6d2eb707db98NotDimensionallyQualified" xlink:type="arc" order="62"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossBeforeTax_123cd2f3-9fcc-4e4b-8fbe-c923b6700b6aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProfitLossBeforeTax_123cd2f3-9fcc-4e4b-8fbe-c923b6700b6aNotDimensionallyQualified" xlink:type="arc" order="63"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxExpenseContinuingOperations_18b8d4a3-1ab2-408f-9d10-1d6c12df6105NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IncomeTaxExpenseContinuingOperations_18b8d4a3-1ab2-408f-9d10-1d6c12df6105NotDimensionallyQualified" xlink:type="arc" order="64"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLoss_a36a4b0f-bfe1-4b6b-9b4b-488654c1c94eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProfitLoss_a36a4b0f-bfe1-4b6b-9b4b-488654c1c94eNotDimensionallyQualified" xlink:type="arc" order="65"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossAttributableToOwnersOfParent_342f6d56-f3d3-4074-9553-f9e71a6cc453NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossAttributableToOwnersOfParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProfitLossAttributableToOwnersOfParent_342f6d56-f3d3-4074-9553-f9e71a6cc453NotDimensionallyQualified" xlink:type="arc" order="66"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_ProfitLossAttributableToHoldersOfCapitalSecurities_6d743655-f764-48bd-93e2-6300cb9bbf58NotDimensionallyQualified" xlink:href="vlk-2025-12-31.xsd#vlk_ProfitLossAttributableToHoldersOfCapitalSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_vlk_ProfitLossAttributableToHoldersOfCapitalSecurities_6d743655-f764-48bd-93e2-6300cb9bbf58NotDimensionallyQualified" xlink:type="arc" order="67"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossAttributableToNoncontrollingInterests_019ba298-0cc8-7bc8-b5b5-1539417d4ebdNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossAttributableToNoncontrollingInterests"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProfitLossAttributableToNoncontrollingInterests_019ba298-0cc8-7bc8-b5b5-1539417d4ebdNotDimensionallyQualified" xlink:type="arc" order="68"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BasicEarningsLossPerShare_c39a2a9b-9895-429f-b271-68600b00e832NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BasicEarningsLossPerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_BasicEarningsLossPerShare_c39a2a9b-9895-429f-b271-68600b00e832NotDimensionallyQualified" xlink:type="arc" order="69"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DilutedEarningsLossPerShare_33558e6a-7aa9-44a9-b4d4-4110886cf05cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DilutedEarningsLossPerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DilutedEarningsLossPerShare_33558e6a-7aa9-44a9-b4d4-4110886cf05cNotDimensionallyQualified" xlink:type="arc" order="70"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare_560dcbf3-42d2-4ec2-bb5b-0f37c1124b0cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare_560dcbf3-42d2-4ec2-bb5b-0f37c1124b0cNotDimensionallyQualified" xlink:type="arc" order="71"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsPaidOrdinarySharesPerShare_ac913a2a-a4ae-4dcd-a558-807e1a5f01bbNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DividendsPaidOrdinarySharesPerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DividendsPaidOrdinarySharesPerShare_ac913a2a-a4ae-4dcd-a558-807e1a5f01bbNotDimensionallyQualified" xlink:type="arc" order="72"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome_65ff3ce9-f062-4095-ab98-aa5eadfc2a0cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome_65ff3ce9-f062-4095-ab98-aa5eadfc2a0cNotDimensionallyQualified" xlink:type="arc" order="73"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTax_8a6eaeed-673b-4823-b0ad-1120d896dd20NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTax_8a6eaeed-673b-4823-b0ad-1120d896dd20NotDimensionallyQualified" xlink:type="arc" order="74"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AmountsRemovedFromEquityAndAdjustedAgainstFairValueOfFinancialAssetsOnReclassificationOutOfFairValueThroughOtherComprehensiveIncomeMeasurementCategoryBeforeTax_66ee8132-ab96-47d7-95dd-f8db20c1a806NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AmountsRemovedFromEquityAndAdjustedAgainstFairValueOfFinancialAssetsOnReclassificationOutOfFairValueThroughOtherComprehensiveIncomeMeasurementCategoryBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AmountsRemovedFromEquityAndAdjustedAgainstFairValueOfFinancialAssetsOnReclassificationOutOfFairValueThroughOtherComprehensiveIncomeMeasurementCategoryBeforeTax_66ee8132-ab96-47d7-95dd-f8db20c1a806NotDimensionallyQualified" xlink:type="arc" order="75"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxRelatingToFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome_277d1858-b139-42da-b7de-61118e3dc176NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxRelatingToFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IncomeTaxRelatingToFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome_277d1858-b139-42da-b7de-61118e3dc176NotDimensionallyQualified" xlink:type="arc" order="76"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome_24c01dcf-4a22-4169-96f2-640e3780beccNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome_24c01dcf-4a22-4169-96f2-640e3780beccNotDimensionallyQualified" xlink:type="arc" order="77"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax_019ba2a0-dcc2-72ef-92de-eed95bf08ba0NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax_019ba2a0-dcc2-72ef-92de-eed95bf08ba0NotDimensionallyQualified" xlink:type="arc" order="78"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome_ef76d18e-4119-45cd-9c62-9f9926410b92NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome_ef76d18e-4119-45cd-9c62-9f9926410b92NotDimensionallyQualified" xlink:type="arc" order="79"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxCashFlowHedges_5ceeaa87-78e6-4167-97fc-7ea5ada4761bNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxCashFlowHedges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxCashFlowHedges_5ceeaa87-78e6-4167-97fc-7ea5ada4761bNotDimensionallyQualified" xlink:type="arc" order="80"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation_fedf5931-1d36-4795-aae8-8374ea63c67cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation_fedf5931-1d36-4795-aae8-8374ea63c67cNotDimensionallyQualified" xlink:type="arc" order="81"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome_3c27c24b-93ac-442e-896d-561af1d4aca9NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome_3c27c24b-93ac-442e-896d-561af1d4aca9NotDimensionallyQualified" xlink:type="arc" order="82"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation_f713a7c9-8d55-4a06-9baf-0f4b3eb46be6NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation_f713a7c9-8d55-4a06-9baf-0f4b3eb46be6NotDimensionallyQualified" xlink:type="arc" order="83"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax_0ebd013f-1d93-47ab-9d32-df71e18aa928NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax_0ebd013f-1d93-47ab-9d32-df71e18aa928NotDimensionallyQualified" xlink:type="arc" order="84"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability_70c97303-ce84-444d-bc46-ed29ed2c0dd9NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability_70c97303-ce84-444d-bc46-ed29ed2c0dd9NotDimensionallyQualified" xlink:type="arc" order="85"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxRelatingToChangesInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiabilityOfOtherComprehensiveIncome_0cd6803a-8ea9-4005-b611-cd124ba2dfe8NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxRelatingToChangesInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiabilityOfOtherComprehensiveIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IncomeTaxRelatingToChangesInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiabilityOfOtherComprehensiveIncome_0cd6803a-8ea9-4005-b611-cd124ba2dfe8NotDimensionallyQualified" xlink:type="arc" order="86"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability_81a87926-0ff8-40f1-ac21-880b9b3f89d5NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability_81a87926-0ff8-40f1-ac21-880b9b3f89d5NotDimensionallyQualified" xlink:type="arc" order="87"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_826a3c40-6665-415c-97c9-cd0752100ef4NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_826a3c40-6665-415c-97c9-cd0752100ef4NotDimensionallyQualified" xlink:type="arc" order="88"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxRelatingToRemeasurementsOfDefinedBenefitPlansOfOtherComprehensiveIncome_d7c43fa0-896d-41ab-b04e-fd7cc88f8a52NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxRelatingToRemeasurementsOfDefinedBenefitPlansOfOtherComprehensiveIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IncomeTaxRelatingToRemeasurementsOfDefinedBenefitPlansOfOtherComprehensiveIncome_d7c43fa0-896d-41ab-b04e-fd7cc88f8a52NotDimensionallyQualified" xlink:type="arc" order="89"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_dd13ca4d-4316-4300-b21b-105ca725323bNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_dd13ca4d-4316-4300-b21b-105ca725323bNotDimensionallyQualified" xlink:type="arc" order="90"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax_df54f021-bec9-4f42-b03d-cbef742acf49NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax_df54f021-bec9-4f42-b03d-cbef742acf49NotDimensionallyQualified" xlink:type="arc" order="91"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncome_890cc821-ab6f-447d-bcc9-0bde8d9bd190NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherComprehensiveIncome_890cc821-ab6f-447d-bcc9-0bde8d9bd190NotDimensionallyQualified" xlink:type="arc" order="92"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncome_0c5c1332-4723-45d0-9e10-3fe331703139NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComprehensiveIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ComprehensiveIncome_0c5c1332-4723-45d0-9e10-3fe331703139NotDimensionallyQualified" xlink:type="arc" order="93"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent_902391b9-714c-4261-b411-2c39be0f3d8fNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent_902391b9-714c-4261-b411-2c39be0f3d8fNotDimensionallyQualified" xlink:type="arc" order="94"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_ComprehensiveIncomeAttributableToHoldersOfCapitalSecurities_edad7aa6-b8e6-4829-b1db-bd7bc1b9cd26NotDimensionallyQualified" xlink:href="vlk-2025-12-31.xsd#vlk_ComprehensiveIncomeAttributableToHoldersOfCapitalSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_vlk_ComprehensiveIncomeAttributableToHoldersOfCapitalSecurities_edad7aa6-b8e6-4829-b1db-bd7bc1b9cd26NotDimensionallyQualified" xlink:type="arc" order="95"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests_019ba2a1-9da1-71c5-80c3-dad1979b528bNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests_019ba2a1-9da1-71c5-80c3-dad1979b528bNotDimensionallyQualified" xlink:type="arc" order="96"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense_592645b6-8edc-47b7-b94b-1bf07f9988d7NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense_592645b6-8edc-47b7-b94b-1bf07f9988d7NotDimensionallyQualified" xlink:type="arc" order="97"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForSharebasedPayments_5a584f99-b7a6-4789-b63d-fd2161a22d30NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForSharebasedPayments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForSharebasedPayments_5a584f99-b7a6-4789-b63d-fd2161a22d30NotDimensionallyQualified" xlink:type="arc" order="98"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForUndistributedProfitsOfAssociates_6ec1aa6b-5a1d-4783-ad68-6146276cf87aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForUndistributedProfitsOfAssociates"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForUndistributedProfitsOfAssociates_6ec1aa6b-5a1d-4783-ad68-6146276cf87aNotDimensionallyQualified" xlink:type="arc" order="99"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfFinancialAssets_019ba2c9-c0dd-7428-86e4-88fea381bf5dNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfFinancialAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfFinancialAssets_019ba2c9-c0dd-7428-86e4-88fea381bf5dNotDimensionallyQualified" xlink:type="arc" order="100"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfFinancialLiabilities_019ba2ca-f86e-709d-b94e-ff1bc26917b6NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfFinancialLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfFinancialLiabilities_019ba2ca-f86e-709d-b94e-ff1bc26917b6NotDimensionallyQualified" xlink:type="arc" order="101"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives_23670ead-7720-4801-9632-6e3506a35c67NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives_23670ead-7720-4801-9632-6e3506a35c67NotDimensionallyQualified" xlink:type="arc" order="102"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_44bcec78-b033-4373-9bc6-e9b505d37266NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_44bcec78-b033-4373-9bc6-e9b505d37266NotDimensionallyQualified" xlink:type="arc" order="103"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInDebtInstrumentsIssued_019be0e9-7a85-7957-9756-5dd492bd14e3NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInDebtInstrumentsIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInDebtInstrumentsIssued_019be0e9-7a85-7957-9756-5dd492bd14e3NotDimensionallyQualified" xlink:type="arc" order="104"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForProvisions_93298553-1a49-46f8-8f94-d6233cc26325NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForProvisions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForProvisions_93298553-1a49-46f8-8f94-d6233cc26325NotDimensionallyQualified" xlink:type="arc" order="105"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_58361b2f-9fda-4543-a778-bce7d12510d3NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_58361b2f-9fda-4543-a778-bce7d12510d3NotDimensionallyQualified" xlink:type="arc" order="106"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_AdjustmentsForIncreaseDecreaseInFinancialAssetsLiabilitiesHeldForTrading_5f5aeda9-565e-4fcd-b6a7-00faa659dca6NotDimensionallyQualified" xlink:href="vlk-2025-12-31.xsd#vlk_AdjustmentsForIncreaseDecreaseInFinancialAssetsLiabilitiesHeldForTrading"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_vlk_AdjustmentsForIncreaseDecreaseInFinancialAssetsLiabilitiesHeldForTrading_5f5aeda9-565e-4fcd-b6a7-00faa659dca6NotDimensionallyQualified" xlink:type="arc" order="107"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_AdjustmentsForIncreaseDecreaseInAmountsDueFromToBanks_ad795a7e-7dc3-4b9a-a1f6-c92b6c544551NotDimensionallyQualified" xlink:href="vlk-2025-12-31.xsd#vlk_AdjustmentsForIncreaseDecreaseInAmountsDueFromToBanks"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_vlk_AdjustmentsForIncreaseDecreaseInAmountsDueFromToBanks_ad795a7e-7dc3-4b9a-a1f6-c92b6c544551NotDimensionallyQualified" xlink:type="arc" order="108"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInLoansAndAdvancesToCustomers_019c4d04-4ec8-7772-b1ba-3dcdd25cc766NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInLoansAndAdvancesToCustomers"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInLoansAndAdvancesToCustomers_019c4d04-4ec8-7772-b1ba-3dcdd25cc766NotDimensionallyQualified" xlink:type="arc" order="109"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInDepositsFromCustomers_019c4d05-2c15-7924-8e40-16735b3b9171NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInDepositsFromCustomers"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInDepositsFromCustomers_019c4d05-2c15-7924-8e40-16735b3b9171NotDimensionallyQualified" xlink:type="arc" order="110"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_AdjustmentsForIncreaseDecreaseInDerivatives_3d66934b-0efb-4df2-95f3-ee08625590c9NotDimensionallyQualified" xlink:href="vlk-2025-12-31.xsd#vlk_AdjustmentsForIncreaseDecreaseInDerivatives"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_vlk_AdjustmentsForIncreaseDecreaseInDerivatives_3d66934b-0efb-4df2-95f3-ee08625590c9NotDimensionallyQualified" xlink:type="arc" order="111"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_AdjustmentsForUtilizationsOfProvisions_3f018987-32ad-458d-9dd5-4d92d0e44fc4NotDimensionallyQualified" xlink:href="vlk-2025-12-31.xsd#vlk_AdjustmentsForUtilizationsOfProvisions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_vlk_AdjustmentsForUtilizationsOfProvisions_3f018987-32ad-458d-9dd5-4d92d0e44fc4NotDimensionallyQualified" xlink:type="arc" order="112"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_AdjustmentsForIncreaseDecreaseOfOtherAssetsAndLiabilities_166ea099-9778-4089-8855-835c4f0f1effNotDimensionallyQualified" xlink:href="vlk-2025-12-31.xsd#vlk_AdjustmentsForIncreaseDecreaseOfOtherAssetsAndLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_vlk_AdjustmentsForIncreaseDecreaseOfOtherAssetsAndLiabilities_166ea099-9778-4089-8855-835c4f0f1effNotDimensionallyQualified" xlink:type="arc" order="113"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities_019c4d0c-26ba-725c-a63b-b23c9a460503NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities_019c4d0c-26ba-725c-a63b-b23c9a460503NotDimensionallyQualified" xlink:type="arc" order="114"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInWorkingCapital_e4da314a-9fdc-4dee-b891-457a0099af91NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInWorkingCapital"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IncreaseDecreaseInWorkingCapital_e4da314a-9fdc-4dee-b891-457a0099af91NotDimensionallyQualified" xlink:type="arc" order="115"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesContinuingOperations_7b970ac8-4886-4335-a674-513e601d2463NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivitiesContinuingOperations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesContinuingOperations_7b970ac8-4886-4335-a674-513e601d2463NotDimensionallyQualified" xlink:type="arc" order="116"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_OtherCashPaymentsToAcquireDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities_2060ee12-0158-4045-9a80-47c8941a5929NotDimensionallyQualified" xlink:href="vlk-2025-12-31.xsd#vlk_OtherCashPaymentsToAcquireDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_vlk_OtherCashPaymentsToAcquireDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities_2060ee12-0158-4045-9a80-47c8941a5929NotDimensionallyQualified" xlink:type="arc" order="117"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_OtherCashPaymentsToAcquireEquityInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities_22ad6ae8-6184-4fd7-b6cd-771e3bb2a14aNotDimensionallyQualified" xlink:href="vlk-2025-12-31.xsd#vlk_OtherCashPaymentsToAcquireEquityInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_vlk_OtherCashPaymentsToAcquireEquityInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities_22ad6ae8-6184-4fd7-b6cd-771e3bb2a14aNotDimensionallyQualified" xlink:type="arc" order="118"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod_70708ba1-f0b4-4749-84a3-69a8f9a04208NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod_70708ba1-f0b4-4749-84a3-69a8f9a04208NotDimensionallyQualified" xlink:type="arc" order="119"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_0553afed-23fb-411c-8e4c-b18f7c6753b8NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_0553afed-23fb-411c-8e4c-b18f7c6753b8NotDimensionallyQualified" xlink:type="arc" order="120"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_afec0f26-c9e2-4f9b-8e43-700e64ad8607NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_afec0f26-c9e2-4f9b-8e43-700e64ad8607NotDimensionallyQualified" xlink:type="arc" order="121"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_OtherCashReceiptsFromSalesOfDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities_87745490-4c95-4732-8c3a-884b77704ce0NotDimensionallyQualified" xlink:href="vlk-2025-12-31.xsd#vlk_OtherCashReceiptsFromSalesOfDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_vlk_OtherCashReceiptsFromSalesOfDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities_87745490-4c95-4732-8c3a-884b77704ce0NotDimensionallyQualified" xlink:type="arc" order="122"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_OtherCashReceiptsFromSalesOfEquityInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities_49ef898d-cee6-4694-bd72-21d35f84b06cNotDimensionallyQualified" xlink:href="vlk-2025-12-31.xsd#vlk_OtherCashReceiptsFromSalesOfEquityInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_vlk_OtherCashReceiptsFromSalesOfEquityInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities_49ef898d-cee6-4694-bd72-21d35f84b06cNotDimensionallyQualified" xlink:type="arc" order="123"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod_a3d1b524-1ff1-4fd6-ac07-4bbbbfade9f8NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod_a3d1b524-1ff1-4fd6-ac07-4bbbbfade9f8NotDimensionallyQualified" xlink:type="arc" order="124"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_b90407a5-52dd-442b-98f0-c4263eff6ec3NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_b90407a5-52dd-442b-98f0-c4263eff6ec3NotDimensionallyQualified" xlink:type="arc" order="125"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsReceivedFromInvestmentsAccountedForUsingEquityMethodClassifiedAsInvestingActivities_6ca8d420-e10e-44bd-830c-709593340ff0NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DividendsReceivedFromInvestmentsAccountedForUsingEquityMethodClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DividendsReceivedFromInvestmentsAccountedForUsingEquityMethodClassifiedAsInvestingActivities_6ca8d420-e10e-44bd-830c-709593340ff0NotDimensionallyQualified" xlink:type="arc" order="126"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsReceivedClassifiedAsInvestingActivities_57988b33-6f89-41e0-978c-21710f46ad8aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DividendsReceivedClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DividendsReceivedClassifiedAsInvestingActivities_57988b33-6f89-41e0-978c-21710f46ad8aNotDimensionallyQualified" xlink:type="arc" order="127"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInInvestingActivitiesContinuingOperations_a87409af-283f-4149-82f5-17ab520a2cf2NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivitiesContinuingOperations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CashFlowsFromUsedInInvestingActivitiesContinuingOperations_a87409af-283f-4149-82f5-17ab520a2cf2NotDimensionallyQualified" xlink:type="arc" order="128"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromSaleOrIssueOfTreasuryShares_31dd038a-b711-4219-9051-4925b81e2846NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromSaleOrIssueOfTreasuryShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProceedsFromSaleOrIssueOfTreasuryShares_31dd038a-b711-4219-9051-4925b81e2846NotDimensionallyQualified" xlink:type="arc" order="129"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares_7a165ab2-a520-4fd1-83bd-11c52bbb8051NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PaymentsToAcquireOrRedeemEntitysShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares_7a165ab2-a520-4fd1-83bd-11c52bbb8051NotDimensionallyQualified" xlink:type="arc" order="130"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_NetIncreaseDecreaseInNonControllingInterestsClassifiedAsFinancingActivities_d8ba53f3-5dc5-49fb-a757-bd54f5e56c67NotDimensionallyQualified" xlink:href="vlk-2025-12-31.xsd#vlk_NetIncreaseDecreaseInNonControllingInterestsClassifiedAsFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_vlk_NetIncreaseDecreaseInNonControllingInterestsClassifiedAsFinancingActivities_d8ba53f3-5dc5-49fb-a757-bd54f5e56c67NotDimensionallyQualified" xlink:type="arc" order="131"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RepaymentsOfSubordinatedLiabilities_71790986-9618-4697-acae-a7bc0aa0cdceNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RepaymentsOfSubordinatedLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_RepaymentsOfSubordinatedLiabilities_71790986-9618-4697-acae-a7bc0aa0cdceNotDimensionallyQualified" xlink:type="arc" order="132"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromIssueOfBondsNotesAndDebentures_32c84b33-554e-4de6-8712-6e9e674f42f6NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromIssueOfBondsNotesAndDebentures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProceedsFromIssueOfBondsNotesAndDebentures_32c84b33-554e-4de6-8712-6e9e674f42f6NotDimensionallyQualified" xlink:type="arc" order="133"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RepaymentsOfBondsNotesAndDebentures_ab35c9ce-d0be-469e-a73a-234def2e7c79NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RepaymentsOfBondsNotesAndDebentures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_RepaymentsOfBondsNotesAndDebentures_ab35c9ce-d0be-469e-a73a-234def2e7c79NotDimensionallyQualified" xlink:type="arc" order="134"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_ProceedsFromFinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsFinancingActivities_d06a28b0-8a8c-4eec-b26c-a1a375f0462aNotDimensionallyQualified" xlink:href="vlk-2025-12-31.xsd#vlk_ProceedsFromFinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_vlk_ProceedsFromFinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsFinancingActivities_d06a28b0-8a8c-4eec-b26c-a1a375f0462aNotDimensionallyQualified" xlink:type="arc" order="135"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_PaymentsOfFinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsFinancingActivities_3078ef89-a590-4be1-a6e5-0409cb9d804bNotDimensionallyQualified" xlink:href="vlk-2025-12-31.xsd#vlk_PaymentsOfFinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_vlk_PaymentsOfFinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsFinancingActivities_3078ef89-a590-4be1-a6e5-0409cb9d804bNotDimensionallyQualified" xlink:type="arc" order="136"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities_6cb47c6d-133f-43b0-bb5d-d1f173c078bbNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities_6cb47c6d-133f-43b0-bb5d-d1f173c078bbNotDimensionallyQualified" xlink:type="arc" order="137"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsPaidClassifiedAsFinancingActivities_26d3ae25-7f4f-4eea-bc82-441db26503c3NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DividendsPaidClassifiedAsFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DividendsPaidClassifiedAsFinancingActivities_26d3ae25-7f4f-4eea-bc82-441db26503c3NotDimensionallyQualified" xlink:type="arc" order="138"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesContinuingOperations_fe21c4ae-2141-47cd-84be-95b89b3ea001NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivitiesContinuingOperations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesContinuingOperations_fe21c4ae-2141-47cd-84be-95b89b3ea001NotDimensionallyQualified" xlink:type="arc" order="139"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_33a79fd0-bdea-4f4c-a6ab-3304cedf573cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_33a79fd0-bdea-4f4c-a6ab-3304cedf573cNotDimensionallyQualified" xlink:type="arc" order="140"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashAndCashEquivalents_019c89f2-20f6-76f0-97ed-a07efb2bc65dNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashAndCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CashAndCashEquivalents_019c89f2-20f6-76f0-97ed-a07efb2bc65dNotDimensionallyQualified" xlink:type="arc" order="141"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestReceivedClassifiedAsOperatingActivities_c88b5468-8c7b-444a-a0ab-bfaa4a417e82NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestReceivedClassifiedAsOperatingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_InterestReceivedClassifiedAsOperatingActivities_c88b5468-8c7b-444a-a0ab-bfaa4a417e82NotDimensionallyQualified" xlink:type="arc" order="142"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestPaidClassifiedAsOperatingActivities_bd7c9f1d-e1d7-4cbf-a85d-626085fd5b23NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestPaidClassifiedAsOperatingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_InterestPaidClassifiedAsOperatingActivities_bd7c9f1d-e1d7-4cbf-a85d-626085fd5b23NotDimensionallyQualified" xlink:type="arc" order="143"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfCashFlowStatementExplanatory_019c4703-98a5-7da3-bcf8-2d71c8676ffdNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfCashFlowStatementExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfCashFlowStatementExplanatory_019c4703-98a5-7da3-bcf8-2d71c8676ffdNotDimensionallyQualified" xlink:type="arc" order="144"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory_b70fd7e1-7288-427f-9aae-59f85078281dNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory_b70fd7e1-7288-427f-9aae-59f85078281dNotDimensionallyQualified" xlink:type="arc" order="145"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory_7b100b89-4435-42d8-a3fa-dcd0b216dc54NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory_7b100b89-4435-42d8-a3fa-dcd0b216dc54NotDimensionallyQualified" xlink:type="arc" order="146"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NameOfReportingEntityOrOtherMeansOfIdentification_c5d69364-c8a1-436b-ba64-803c3c53eddaNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NameOfReportingEntityOrOtherMeansOfIdentification"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NameOfReportingEntityOrOtherMeansOfIdentification_c5d69364-c8a1-436b-ba64-803c3c53eddaNotDimensionallyQualified" xlink:type="arc" order="147"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities_024194ef-0f1f-4b37-9a26-1033d70b2336NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities_024194ef-0f1f-4b37-9a26-1033d70b2336NotDimensionallyQualified" xlink:type="arc" order="148"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AddressOfRegisteredOfficeOfEntity_0e4ba056-0fe1-46bd-8387-b52a6844d6e1NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AddressOfRegisteredOfficeOfEntity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AddressOfRegisteredOfficeOfEntity_0e4ba056-0fe1-46bd-8387-b52a6844d6e1NotDimensionallyQualified" xlink:type="arc" order="149"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PrincipalPlaceOfBusiness_c0bc4d05-e9cc-44ea-b6f3-f227dc564d12NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PrincipalPlaceOfBusiness"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_PrincipalPlaceOfBusiness_c0bc4d05-e9cc-44ea-b6f3-f227dc564d12NotDimensionallyQualified" xlink:type="arc" order="150"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DomicileOfEntity_7cb4a7ae-6f23-4da1-a5df-9a9d7e338960NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DomicileOfEntity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DomicileOfEntity_7cb4a7ae-6f23-4da1-a5df-9a9d7e338960NotDimensionallyQualified" xlink:type="arc" order="151"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CountryOfIncorporation_bd63c906-94c9-4f01-924d-cab5f6a1b96aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CountryOfIncorporation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CountryOfIncorporation_bd63c906-94c9-4f01-924d-cab5f6a1b96aNotDimensionallyQualified" xlink:type="arc" order="152"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LegalFormOfEntity_2f29519e-1c77-44e3-aae2-525c8759fe08NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LegalFormOfEntity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_LegalFormOfEntity_2f29519e-1c77-44e3-aae2-525c8759fe08NotDimensionallyQualified" xlink:type="arc" order="153"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAuthorisationOfFinancialStatementsExplanatory_e2b4bb5e-7456-46d5-8b0c-c2f362f9d03eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfAuthorisationOfFinancialStatementsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfAuthorisationOfFinancialStatementsExplanatory_e2b4bb5e-7456-46d5-8b0c-c2f362f9d03eNotDimensionallyQualified" xlink:type="arc" order="154"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory_91de4c66-150f-4918-be78-8a500bfc1265NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory_91de4c66-150f-4918-be78-8a500bfc1265NotDimensionallyQualified" xlink:type="arc" order="155"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfIFRSCompliance_db9dbacc-1171-4a8a-958a-7ec465abd2dfNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_StatementOfIFRSCompliance"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_StatementOfIFRSCompliance_db9dbacc-1171-4a8a-958a-7ec465abd2dfNotDimensionallyQualified" xlink:type="arc" order="156"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfGoingConcernExplanatory_c54ef446-0c00-4e0b-9be7-3b85efd88cd3NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfGoingConcernExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfGoingConcernExplanatory_c54ef446-0c00-4e0b-9be7-3b85efd88cd3NotDimensionallyQualified" xlink:type="arc" order="157"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFunctionalCurrencyExplanatory_e9e56b03-4110-4764-af76-f79107774cc3NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFunctionalCurrencyExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFunctionalCurrencyExplanatory_e9e56b03-4110-4764-af76-f79107774cc3NotDimensionallyQualified" xlink:type="arc" order="158"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfChangesInAccountingPoliciesExplanatory_f0c152bb-ba4f-48e8-a9b9-5ff2aa1b8f8eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfChangesInAccountingPoliciesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfChangesInAccountingPoliciesExplanatory_f0c152bb-ba4f-48e8-a9b9-5ff2aa1b8f8eNotDimensionallyQualified" xlink:type="arc" order="159"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_DescriptionOfAccountingPolicyExplainingOfNewStandardsOrInterpretationsNotApplied_d370eb18-c043-4124-b06f-3a5d995d69dfNotDimensionallyQualified" xlink:href="vlk-2025-12-31.xsd#vlk_DescriptionOfAccountingPolicyExplainingOfNewStandardsOrInterpretationsNotApplied"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_vlk_DescriptionOfAccountingPolicyExplainingOfNewStandardsOrInterpretationsNotApplied_d370eb18-c043-4124-b06f-3a5d995d69dfNotDimensionallyQualified" xlink:type="arc" order="160"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory_453ae11e-db4b-4d1a-bd95-44ff1e62130dNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory_453ae11e-db4b-4d1a-bd95-44ff1e62130dNotDimensionallyQualified" xlink:type="arc" order="161"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory_c3227f1a-653b-433e-a1de-08f0e905aeceNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory_c3227f1a-653b-433e-a1de-08f0e905aeceNotDimensionallyQualified" xlink:type="arc" order="162"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfFinancialAssetsExplanatory_c7b2cdfd-e4e6-413a-903c-0feeddc8c126NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfFinancialAssetsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfFinancialAssetsExplanatory_c7b2cdfd-e4e6-413a-903c-0feeddc8c126NotDimensionallyQualified" xlink:type="arc" order="163"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory_2b27b4d5-50d2-4432-959c-6b0910eee523NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory_2b27b4d5-50d2-4432-959c-6b0910eee523NotDimensionallyQualified" xlink:type="arc" order="164"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfBasisOfConsolidationExplanatory_cabfc1c7-d3a3-405f-ae51-6c8773469885NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfBasisOfConsolidationExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfBasisOfConsolidationExplanatory_cabfc1c7-d3a3-405f-ae51-6c8773469885NotDimensionallyQualified" xlink:type="arc" order="165"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForSubsidiariesExplanatory_65fb6542-02cd-4184-8551-5911e77d5fcfNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForSubsidiariesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForSubsidiariesExplanatory_65fb6542-02cd-4184-8551-5911e77d5fcfNotDimensionallyQualified" xlink:type="arc" order="166"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsAndGoodwillExplanatory_a28fec20-45e4-40c6-900e-aee7a7a0f424NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsAndGoodwillExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsAndGoodwillExplanatory_a28fec20-45e4-40c6-900e-aee7a7a0f424NotDimensionallyQualified" xlink:type="arc" order="167"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory_aa8d3a72-dbb7-4990-8086-4112882c9d27NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory_aa8d3a72-dbb7-4990-8086-4112882c9d27NotDimensionallyQualified" xlink:type="arc" order="168"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory_019bb279-77a4-787e-8071-149dd6a8734fNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory_019bb279-77a4-787e-8071-149dd6a8734fNotDimensionallyQualified" xlink:type="arc" order="169"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory_dd747485-23f1-4b68-97d3-78d5cdce9c40NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory_dd747485-23f1-4b68-97d3-78d5cdce9c40NotDimensionallyQualified" xlink:type="arc" order="170"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForDerecognitionOfFinancialInstrumentsExplanatory_13be8c0d-c4b8-486b-95cf-e311785eb707NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForDerecognitionOfFinancialInstrumentsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForDerecognitionOfFinancialInstrumentsExplanatory_13be8c0d-c4b8-486b-95cf-e311785eb707NotDimensionallyQualified" xlink:type="arc" order="171"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory_92e58e68-8d6d-4ecc-9a92-bcaae5af799eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory_92e58e68-8d6d-4ecc-9a92-bcaae5af799eNotDimensionallyQualified" xlink:type="arc" order="172"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory_e4b2bb90-89b0-4268-a165-87d91010f641NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory_e4b2bb90-89b0-4268-a165-87d91010f641NotDimensionallyQualified" xlink:type="arc" order="173"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsExplanatory_896ab498-aa56-4f57-ac6c-d779124b7392NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsExplanatory_896ab498-aa56-4f57-ac6c-d779124b7392NotDimensionallyQualified" xlink:type="arc" order="174"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForHedgingExplanatory_42fc470b-91e6-45e5-b26d-d0e03e41916cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForHedgingExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForHedgingExplanatory_42fc470b-91e6-45e5-b26d-d0e03e41916cNotDimensionallyQualified" xlink:type="arc" order="175"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForRecognisingDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueExplanatory_29684009-f741-4f7d-ba71-543503c1f1fbNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForRecognisingDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForRecognisingDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueExplanatory_29684009-f741-4f7d-ba71-543503c1f1fbNotDimensionallyQualified" xlink:type="arc" order="176"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForOffsettingOfFinancialInstrumentsExplanatory_bdbe7cc1-d5e8-46dd-bee1-880784ae9c40NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForOffsettingOfFinancialInstrumentsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForOffsettingOfFinancialInstrumentsExplanatory_bdbe7cc1-d5e8-46dd-bee1-880784ae9c40NotDimensionallyQualified" xlink:type="arc" order="177"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents_7e99f0fd-8dcd-4791-94d9-8b8f89d8fb56NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents_7e99f0fd-8dcd-4791-94d9-8b8f89d8fb56NotDimensionallyQualified" xlink:type="arc" order="178"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory_7e72090a-55fd-4b16-8d2f-dc43eab6a3d6NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory_7e72090a-55fd-4b16-8d2f-dc43eab6a3d6NotDimensionallyQualified" xlink:type="arc" order="179"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForInvestmentInAssociates_cd7ca2d2-a529-47e4-8ce9-002e761f658aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForInvestmentInAssociates"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForInvestmentInAssociates_cd7ca2d2-a529-47e4-8ce9-002e761f658aNotDimensionallyQualified" xlink:type="arc" order="180"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory_a96825e3-3cda-4b6f-b9bf-25de523c968dNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory_a96825e3-3cda-4b6f-b9bf-25de523c968dNotDimensionallyQualified" xlink:type="arc" order="181"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory_c2e6a55d-e0af-42f4-bfb5-501a442d9904NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory_c2e6a55d-e0af-42f4-bfb5-501a442d9904NotDimensionallyQualified" xlink:type="arc" order="182"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory_76b32ee9-8d70-41db-bd25-0ce79f1610a2NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory_76b32ee9-8d70-41db-bd25-0ce79f1610a2NotDimensionallyQualified" xlink:type="arc" order="183"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory_3fa8a1de-650d-41ba-9f64-f18b6c503a4aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory_3fa8a1de-650d-41ba-9f64-f18b6c503a4aNotDimensionallyQualified" xlink:type="arc" order="184"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForDeferredIncomeTaxExplanatory_d5aa485c-b391-4260-990a-6fea202c16e2NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForDeferredIncomeTaxExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForDeferredIncomeTaxExplanatory_d5aa485c-b391-4260-990a-6fea202c16e2NotDimensionallyQualified" xlink:type="arc" order="185"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForTradeAndOtherReceivablesExplanatory_fd46febc-e0f6-4058-b2b0-5c28ea280583NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForTradeAndOtherReceivablesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForTradeAndOtherReceivablesExplanatory_fd46febc-e0f6-4058-b2b0-5c28ea280583NotDimensionallyQualified" xlink:type="arc" order="186"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForBorrowingsExplanatory_c02270b0-86f2-42f4-b3ee-2dd9af06a8d1NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForBorrowingsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForBorrowingsExplanatory_c02270b0-86f2-42f4-b3ee-2dd9af06a8d1NotDimensionallyQualified" xlink:type="arc" order="187"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory_47aa5add-c5c2-4ed4-8307-d402be9c27f3NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory_47aa5add-c5c2-4ed4-8307-d402be9c27f3NotDimensionallyQualified" xlink:type="arc" order="188"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory_88ae1ba2-4b38-4834-b150-a84a073f978aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory_88ae1ba2-4b38-4834-b150-a84a073f978aNotDimensionallyQualified" xlink:type="arc" order="189"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForTradeAndOtherPayablesExplanatory_ec75badc-1bc9-4d86-830e-cebfd48ed2c7NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForTradeAndOtherPayablesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForTradeAndOtherPayablesExplanatory_ec75badc-1bc9-4d86-830e-cebfd48ed2c7NotDimensionallyQualified" xlink:type="arc" order="190"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory_550ab557-673e-4873-aec0-cefbdc59d9faNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory_550ab557-673e-4873-aec0-cefbdc59d9faNotDimensionallyQualified" xlink:type="arc" order="191"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForIssuedCapitalExplanatory_cc0fd24b-7314-4218-b419-94fe412d4a01NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForIssuedCapitalExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForIssuedCapitalExplanatory_cc0fd24b-7314-4218-b419-94fe412d4a01NotDimensionallyQualified" xlink:type="arc" order="192"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForTreasurySharesExplanatory_61c007f8-ec1b-486f-92fb-65c21cfcfdc4NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForTreasurySharesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForTreasurySharesExplanatory_61c007f8-ec1b-486f-92fb-65c21cfcfdc4NotDimensionallyQualified" xlink:type="arc" order="193"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue_f3032eaf-b623-4ffa-9b10-0d36a01e8c03NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue_f3032eaf-b623-4ffa-9b10-0d36a01e8c03NotDimensionallyQualified" xlink:type="arc" order="194"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForInterestIncomeAndExpenseExplanatory_49ee7ae6-4417-41a2-afd1-fd35484a5b3dNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForInterestIncomeAndExpenseExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForInterestIncomeAndExpenseExplanatory_49ee7ae6-4417-41a2-afd1-fd35484a5b3dNotDimensionallyQualified" xlink:type="arc" order="195"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFeeAndCommissionIncomeAndExpenseExplanatory_4d6740de-c0f6-4f9d-bca8-96384074f277NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFeeAndCommissionIncomeAndExpenseExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFeeAndCommissionIncomeAndExpenseExplanatory_4d6740de-c0f6-4f9d-bca8-96384074f277NotDimensionallyQualified" xlink:type="arc" order="196"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForTradingIncomeAndExpenseExplanatory_9b1f183d-99f0-40ec-b824-803c099857f5NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForTradingIncomeAndExpenseExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForTradingIncomeAndExpenseExplanatory_9b1f183d-99f0-40ec-b824-803c099857f5NotDimensionallyQualified" xlink:type="arc" order="197"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory_fa4a8d46-1003-4653-aef1-30a4deb781adNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory_fa4a8d46-1003-4653-aef1-30a4deb781adNotDimensionallyQualified" xlink:type="arc" order="198"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory_75ca20d5-6675-49d3-9c3b-db6dc498e273NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory_75ca20d5-6675-49d3-9c3b-db6dc498e273NotDimensionallyQualified" xlink:type="arc" order="199"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForDepreciationExpenseExplanatory_1313230f-e2a7-471c-8614-0bcd44d543cbNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForDepreciationExpenseExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForDepreciationExpenseExplanatory_1313230f-e2a7-471c-8614-0bcd44d543cbNotDimensionallyQualified" xlink:type="arc" order="200"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory_3dc38f96-4100-41c0-a80a-f39a754ecf02NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory_3dc38f96-4100-41c0-a80a-f39a754ecf02NotDimensionallyQualified" xlink:type="arc" order="201"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory_5e075a1a-cbbc-4558-8e99-63d89b8b4d89NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory_5e075a1a-cbbc-4558-8e99-63d89b8b4d89NotDimensionallyQualified" xlink:type="arc" order="202"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory_f5a3e9b8-2398-49a5-824f-4e0cf012d059NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory_f5a3e9b8-2398-49a5-824f-4e0cf012d059NotDimensionallyQualified" xlink:type="arc" order="203"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForCashFlowsExplanatory_514b2cfd-f6ad-4445-89f6-78e22cd0ec0bNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForCashFlowsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForCashFlowsExplanatory_514b2cfd-f6ad-4445-89f6-78e22cd0ec0bNotDimensionallyQualified" xlink:type="arc" order="204"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForContingentLiabilitiesAndContingentAssetsExplanatory_4068d866-3360-4bda-9de8-774d830089f8NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForContingentLiabilitiesAndContingentAssetsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForContingentLiabilitiesAndContingentAssetsExplanatory_4068d866-3360-4bda-9de8-774d830089f8NotDimensionallyQualified" xlink:type="arc" order="205"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialGuaranteesExplanatory_d674cd3b-7a30-4355-a97d-8f45b3ca5f0cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinancialGuaranteesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialGuaranteesExplanatory_d674cd3b-7a30-4355-a97d-8f45b3ca5f0cNotDimensionallyQualified" xlink:type="arc" order="206"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory_c747adc0-6c87-46fe-a720-507b8b6ccd1fNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory_c747adc0-6c87-46fe-a720-507b8b6ccd1fNotDimensionallyQualified" xlink:type="arc" order="207"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialRiskManagementExplanatory_24c9134d-0584-417c-b404-df9027a57525NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialRiskManagementExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFinancialRiskManagementExplanatory_24c9134d-0584-417c-b404-df9027a57525NotDimensionallyQualified" xlink:type="arc" order="208"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory_cb1646c4-48a1-4536-8c24-de87ac2c81c6NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory_cb1646c4-48a1-4536-8c24-de87ac2c81c6NotDimensionallyQualified" xlink:type="arc" order="209"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfCollateralExplanatory_2e779d2b-9216-4435-a3a5-94598848b3daNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfCollateralExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfCollateralExplanatory_2e779d2b-9216-4435-a3a5-94598848b3daNotDimensionallyQualified" xlink:type="arc" order="210"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfCreditRiskExplanatory_ddbf2fbd-499e-4c27-98e8-8db401538234NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfCreditRiskExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfCreditRiskExplanatory_ddbf2fbd-499e-4c27-98e8-8db401538234NotDimensionallyQualified" xlink:type="arc" order="211"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAllowanceForCreditLossesExplanatory_5d26562a-4739-4aaf-9566-4fdc0c96f673NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfAllowanceForCreditLossesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfAllowanceForCreditLossesExplanatory_5d26562a-4739-4aaf-9566-4fdc0c96f673NotDimensionallyQualified" xlink:type="arc" order="212"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfMarketRiskExplanatory_97859a6b-085d-41f6-81cf-e0c5af51b070NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfMarketRiskExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfMarketRiskExplanatory_97859a6b-085d-41f6-81cf-e0c5af51b070NotDimensionallyQualified" xlink:type="arc" order="213"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory_b2afd573-dc5b-4a9a-92e5-5b75cd588560NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory_b2afd573-dc5b-4a9a-92e5-5b75cd588560NotDimensionallyQualified" xlink:type="arc" order="214"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfLiquidityRiskExplanatory_f0d50310-c4f5-418d-866b-677df1f33ba2NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfLiquidityRiskExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfLiquidityRiskExplanatory_f0d50310-c4f5-418d-866b-677df1f33ba2NotDimensionallyQualified" xlink:type="arc" order="215"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReclassificationOfFinancialInstrumentsExplanatory_989863e7-db6f-4364-9000-6f9a6d10a47cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfReclassificationOfFinancialInstrumentsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfReclassificationOfFinancialInstrumentsExplanatory_989863e7-db6f-4364-9000-6f9a6d10a47cNotDimensionallyQualified" xlink:type="arc" order="216"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementExplanatory_43fcfaa8-f1ce-4504-84e9-4bf97c8aa8d2NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFairValueMeasurementExplanatory_43fcfaa8-f1ce-4504-84e9-4bf97c8aa8d2NotDimensionallyQualified" xlink:type="arc" order="217"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfCashAndBankBalancesAtCentralBanksExplanatory_2fb15db5-8e1a-4652-83ea-7fb4e530dc6eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfCashAndBankBalancesAtCentralBanksExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfCashAndBankBalancesAtCentralBanksExplanatory_2fb15db5-8e1a-4652-83ea-7fb4e530dc6eNotDimensionallyQualified" xlink:type="arc" order="218"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfCashAndCashEquivalentsExplanatory_a170cdba-d7ce-43da-bd75-4acaf5e8c115NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfCashAndCashEquivalentsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfCashAndCashEquivalentsExplanatory_a170cdba-d7ce-43da-bd75-4acaf5e8c115NotDimensionallyQualified" xlink:type="arc" order="219"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfRestrictedCashAndCashEquivalentsExplanatory_13378bd9-a40c-4ff7-84a1-ec263e46f672NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfRestrictedCashAndCashEquivalentsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfRestrictedCashAndCashEquivalentsExplanatory_13378bd9-a40c-4ff7-84a1-ec263e46f672NotDimensionallyQualified" xlink:type="arc" order="220"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfLoansAndAdvancesToBanksExplanatory_cc92f2cf-53d2-4e93-9486-5acd04bd16d1NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfLoansAndAdvancesToBanksExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfLoansAndAdvancesToBanksExplanatory_cc92f2cf-53d2-4e93-9486-5acd04bd16d1NotDimensionallyQualified" xlink:type="arc" order="221"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReclassificationsOrChangesInPresentationExplanatory_019c8a07-a41a-7c4c-ad22-2bcb703bd9e4NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfReclassificationsOrChangesInPresentationExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfReclassificationsOrChangesInPresentationExplanatory_019c8a07-a41a-7c4c-ad22-2bcb703bd9e4NotDimensionallyQualified" xlink:type="arc" order="222"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsExplanatory_019c4da9-8310-782e-9d55-2ce1428c0094NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFinancialInstrumentsExplanatory_019c4da9-8310-782e-9d55-2ce1428c0094NotDimensionallyQualified" xlink:type="arc" order="223"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory_2dc47701-8f9a-40db-9159-d09d13c13405NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory_2dc47701-8f9a-40db-9159-d09d13c13405NotDimensionallyQualified" xlink:type="arc" order="224"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsHeldForTradingExplanatory_13a37ec1-3cff-4f5d-b987-c2e83b67b37eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsHeldForTradingExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFinancialInstrumentsHeldForTradingExplanatory_13a37ec1-3cff-4f5d-b987-c2e83b67b37eNotDimensionallyQualified" xlink:type="arc" order="225"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory_019c470d-35e9-70dc-ad0d-21927ca5acceNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory_019c470d-35e9-70dc-ad0d-21927ca5acceNotDimensionallyQualified" xlink:type="arc" order="226"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsDesignatedAtFairValueThroughProfitOrLossExplanatory_8d7eb74e-9f9e-40c7-8e50-40cc195af64eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsDesignatedAtFairValueThroughProfitOrLossExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFinancialInstrumentsDesignatedAtFairValueThroughProfitOrLossExplanatory_8d7eb74e-9f9e-40c7-8e50-40cc195af64eNotDimensionallyQualified" xlink:type="arc" order="227"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory_5cd25585-4f6b-4f43-a03d-c812b2a5c934NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory_5cd25585-4f6b-4f43-a03d-c812b2a5c934NotDimensionallyQualified" xlink:type="arc" order="228"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfLoansAndAdvancesToCustomersExplanatory_7a79d6b0-aa40-45e8-bec0-9c1851e4ac7eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfLoansAndAdvancesToCustomersExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfLoansAndAdvancesToCustomersExplanatory_7a79d6b0-aa40-45e8-bec0-9c1851e4ac7eNotDimensionallyQualified" xlink:type="arc" order="229"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory_3b431c04-ed3c-487a-965d-6dce72cd6cdbNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory_3b431c04-ed3c-487a-965d-6dce72cd6cdbNotDimensionallyQualified" xlink:type="arc" order="230"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesExplanatory_78d5170d-99f0-4efb-b77c-3aa2f0807801NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesExplanatory_78d5170d-99f0-4efb-b77c-3aa2f0807801NotDimensionallyQualified" xlink:type="arc" order="231"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory_0ae78e48-19bf-498c-bf87-54efeea7a2efNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory_0ae78e48-19bf-498c-bf87-54efeea7a2efNotDimensionallyQualified" xlink:type="arc" order="232"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfLeasesExplanatory_7b85befe-f1b4-44d9-9ea9-97f5b08fbcefNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfLeasesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfLeasesExplanatory_7b85befe-f1b4-44d9-9ea9-97f5b08fbcefNotDimensionallyQualified" xlink:type="arc" order="233"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfIntangibleAssetsAndGoodwillExplanatory_f1348ef8-71a0-4ec0-aefa-ad2ee1c0da7eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfIntangibleAssetsAndGoodwillExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfIntangibleAssetsAndGoodwillExplanatory_f1348ef8-71a0-4ec0-aefa-ad2ee1c0da7eNotDimensionallyQualified" xlink:type="arc" order="234"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfIntangibleAssetsExplanatory_a72c85c9-4f84-4142-9265-b48320cb7a0cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfIntangibleAssetsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfIntangibleAssetsExplanatory_a72c85c9-4f84-4142-9265-b48320cb7a0cNotDimensionallyQualified" xlink:type="arc" order="235"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfGoodwillExplanatory_35412de3-faa8-4876-b624-c5964a5ea2a2NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfGoodwillExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfGoodwillExplanatory_35412de3-faa8-4876-b624-c5964a5ea2a2NotDimensionallyQualified" xlink:type="arc" order="236"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDeferredTaxesExplanatory_5419febd-39e7-49f3-a190-cf2fb584b1b9NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDeferredTaxesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfDeferredTaxesExplanatory_5419febd-39e7-49f3-a190-cf2fb584b1b9NotDimensionallyQualified" xlink:type="arc" order="237"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTaxReceivablesAndPayablesExplanatory_0b90f1d3-af45-4e3a-8008-9a188e512d50NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTaxReceivablesAndPayablesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfTaxReceivablesAndPayablesExplanatory_0b90f1d3-af45-4e3a-8008-9a188e512d50NotDimensionallyQualified" xlink:type="arc" order="238"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOtherAssetsExplanatory_2ef387c4-f3d3-4141-b9b6-4145907d61e9NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOtherAssetsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfOtherAssetsExplanatory_2ef387c4-f3d3-4141-b9b6-4145907d61e9NotDimensionallyQualified" xlink:type="arc" order="239"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfBorrowingsExplanatory_019c46f3-2253-7c76-b7a2-1ce386076ebfNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfBorrowingsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfBorrowingsExplanatory_019c46f3-2253-7c76-b7a2-1ce386076ebfNotDimensionallyQualified" xlink:type="arc" order="240"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDepositsFromBanksExplanatory_9e8dafbf-56c9-4096-b4ef-2fb176deb5d0NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDepositsFromBanksExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfDepositsFromBanksExplanatory_9e8dafbf-56c9-4096-b4ef-2fb176deb5d0NotDimensionallyQualified" xlink:type="arc" order="241"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDepositsFromCustomersExplanatory_6a97d9d2-7035-4452-b9ec-5705a3bfd467NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDepositsFromCustomersExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfDepositsFromCustomersExplanatory_6a97d9d2-7035-4452-b9ec-5705a3bfd467NotDimensionallyQualified" xlink:type="arc" order="242"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDebtSecuritiesExplanatory_9c95b0c0-4bd8-49d2-a33d-c25f443fb84fNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDebtSecuritiesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfDebtSecuritiesExplanatory_9c95b0c0-4bd8-49d2-a33d-c25f443fb84fNotDimensionallyQualified" xlink:type="arc" order="243"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfProvisionsExplanatory_c44346c6-ee96-4be6-9c09-eb1c743f0682NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfProvisionsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfProvisionsExplanatory_c44346c6-ee96-4be6-9c09-eb1c743f0682NotDimensionallyQualified" xlink:type="arc" order="244"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOtherLiabilitiesExplanatory_ceebe4b5-0fe6-4aa6-b5ef-e518974cebc1NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOtherLiabilitiesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfOtherLiabilitiesExplanatory_ceebe4b5-0fe6-4aa6-b5ef-e518974cebc1NotDimensionallyQualified" xlink:type="arc" order="245"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSubordinatedLiabilitiesExplanatory_15c779f5-2084-417c-9ba4-a1f61e0488a9NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfSubordinatedLiabilitiesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfSubordinatedLiabilitiesExplanatory_15c779f5-2084-417c-9ba4-a1f61e0488a9NotDimensionallyQualified" xlink:type="arc" order="246"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory_824bc860-4838-49dc-b62c-b244b66a19bbNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory_824bc860-4838-49dc-b62c-b244b66a19bbNotDimensionallyQualified" xlink:type="arc" order="247"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfIssuedCapitalExplanatory_46b401fe-e604-4984-8fbe-2caf88613a25NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfIssuedCapitalExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfIssuedCapitalExplanatory_46b401fe-e604-4984-8fbe-2caf88613a25NotDimensionallyQualified" xlink:type="arc" order="248"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReservesAndOtherEquityInterestExplanatory_63857bd3-abc7-4ac2-825b-890dc8e059daNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfReservesAndOtherEquityInterestExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfReservesAndOtherEquityInterestExplanatory_63857bd3-abc7-4ac2-825b-890dc8e059daNotDimensionallyQualified" xlink:type="arc" order="249"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTreasurySharesExplanatory_311ed296-6692-4508-90b6-9ab2060e6da0NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTreasurySharesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfTreasurySharesExplanatory_311ed296-6692-4508-90b6-9ab2060e6da0NotDimensionallyQualified" xlink:type="arc" order="250"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInterestIncomeExpenseExplanatory_86fd910f-34b7-4568-b232-8a6b7911d3acNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInterestIncomeExpenseExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfInterestIncomeExpenseExplanatory_86fd910f-34b7-4568-b232-8a6b7911d3acNotDimensionallyQualified" xlink:type="arc" order="251"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory_24afac8b-8b42-4e45-91e9-2b897c3832f8NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory_24afac8b-8b42-4e45-91e9-2b897c3832f8NotDimensionallyQualified" xlink:type="arc" order="252"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFeeAndCommissionIncomeExpenseExplanatory_1a53ae0a-2d23-43bc-bbaf-822ecd6215c5NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFeeAndCommissionIncomeExpenseExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFeeAndCommissionIncomeExpenseExplanatory_1a53ae0a-2d23-43bc-bbaf-822ecd6215c5NotDimensionallyQualified" xlink:type="arc" order="253"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTradingIncomeExpenseExplanatory_527b1289-0974-42fe-929e-1bef068ab194NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTradingIncomeExpenseExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfTradingIncomeExpenseExplanatory_527b1289-0974-42fe-929e-1bef068ab194NotDimensionallyQualified" xlink:type="arc" order="254"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory_27a1594a-60d5-4881-8b1e-354587ca3d4eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory_27a1594a-60d5-4881-8b1e-354587ca3d4eNotDimensionallyQualified" xlink:type="arc" order="255"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOtherOperatingIncomeExplanatory_4652fd92-774c-474f-9bce-1f2ac1c32eaeNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOtherOperatingIncomeExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfOtherOperatingIncomeExplanatory_4652fd92-774c-474f-9bce-1f2ac1c32eaeNotDimensionallyQualified" xlink:type="arc" order="256"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfEmployeeBenefitsExplanatory_c33e4ca3-e1b7-4a61-a0d3-9c7b09111c97NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfEmployeeBenefitsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfEmployeeBenefitsExplanatory_c33e4ca3-e1b7-4a61-a0d3-9c7b09111c97NotDimensionallyQualified" xlink:type="arc" order="257"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInformationAboutEmployeesExplanatory_da14750b-671f-4233-98cc-80fcc2f34c0dNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInformationAboutEmployeesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfInformationAboutEmployeesExplanatory_da14750b-671f-4233-98cc-80fcc2f34c0dNotDimensionallyQualified" xlink:type="arc" order="258"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory_660b63b5-a033-44b7-90a6-e056214d4f05NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory_660b63b5-a033-44b7-90a6-e056214d4f05NotDimensionallyQualified" xlink:type="arc" order="259"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfGeneralAndAdministrativeExpenseExplanatory_dc1f4013-cac2-4b41-a32e-655043e27954NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfGeneralAndAdministrativeExpenseExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfGeneralAndAdministrativeExpenseExplanatory_dc1f4013-cac2-4b41-a32e-655043e27954NotDimensionallyQualified" xlink:type="arc" order="260"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAuditorsRemunerationExplanatory_c36666f9-24cf-46cc-ba91-4ad963967054NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfAuditorsRemunerationExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfAuditorsRemunerationExplanatory_c36666f9-24cf-46cc-ba91-4ad963967054NotDimensionallyQualified" xlink:type="arc" order="261"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDepreciationAndAmortisationExpenseExplanatory_3bf4be55-ec31-4dac-b9b3-2af3fa0334e4NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDepreciationAndAmortisationExpenseExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfDepreciationAndAmortisationExpenseExplanatory_3bf4be55-ec31-4dac-b9b3-2af3fa0334e4NotDimensionallyQualified" xlink:type="arc" order="262"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfImpairmentOfAssetsExplanatory_6dc31498-e5b3-4557-9e90-e75d0f965c6aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfImpairmentOfAssetsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfImpairmentOfAssetsExplanatory_6dc31498-e5b3-4557-9e90-e75d0f965c6aNotDimensionallyQualified" xlink:type="arc" order="263"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfIncomeTaxExplanatory_8ed0a19b-0101-460d-a2e4-85910c74105fNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfIncomeTaxExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfIncomeTaxExplanatory_8ed0a19b-0101-460d-a2e4-85910c74105fNotDimensionallyQualified" xlink:type="arc" order="264"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfEarningsPerShareExplanatory_8ea383a9-d45d-48bf-9ec7-50acf6d5335fNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfEarningsPerShareExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfEarningsPerShareExplanatory_8ea383a9-d45d-48bf-9ec7-50acf6d5335fNotDimensionallyQualified" xlink:type="arc" order="265"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfBusinessCombinationsExplanatory_135e26fe-73bb-40fa-8f06-1a15af428305NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfBusinessCombinationsExplanatory_135e26fe-73bb-40fa-8f06-1a15af428305NotDimensionallyQualified" xlink:type="arc" order="266"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfRelatedPartyExplanatory_60981164-b9d2-4be8-ab25-6928b1051612NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfRelatedPartyExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfRelatedPartyExplanatory_60981164-b9d2-4be8-ab25-6928b1051612NotDimensionallyQualified" xlink:type="arc" order="267"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory_ab610cfd-a8ed-46cd-8b28-2bd30915a02bNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory_ab610cfd-a8ed-46cd-8b28-2bd30915a02bNotDimensionallyQualified" xlink:type="arc" order="268"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfNoncontrollingInterestsExplanatory_08e4f45c-4187-491c-846f-c289c4cc402dNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfNoncontrollingInterestsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfNoncontrollingInterestsExplanatory_08e4f45c-4187-491c-846f-c289c4cc402dNotDimensionallyQualified" xlink:type="arc" order="269"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory_012d2ef5-d9c4-4807-b69d-048961d5f0d3NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory_012d2ef5-d9c4-4807-b69d-048961d5f0d3NotDimensionallyQualified" xlink:type="arc" order="270"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfCommitmentsExplanatory_bc5bcfc2-df44-4179-bc16-6bdc88f7b162NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfCommitmentsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfCommitmentsExplanatory_bc5bcfc2-df44-4179-bc16-6bdc88f7b162NotDimensionallyQualified" xlink:type="arc" order="271"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfContingentLiabilitiesExplanatory_5f54fb29-1368-404a-a48a-559bba8d4e0fNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfContingentLiabilitiesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfContingentLiabilitiesExplanatory_5f54fb29-1368-404a-a48a-559bba8d4e0fNotDimensionallyQualified" xlink:type="arc" order="272"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory_8aac9749-97d3-4780-a03d-7180e48db85cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory_8aac9749-97d3-4780-a03d-7180e48db85cNotDimensionallyQualified" xlink:type="arc" order="273"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDividendsExplanatory_051547d0-29c6-4da6-826a-f663b8a9299cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDividendsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfDividendsExplanatory_051547d0-29c6-4da6-826a-f663b8a9299cNotDimensionallyQualified" xlink:type="arc" order="274"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners_019c4814-9183-745f-a811-eb5a1e1d2b60NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners_019c4814-9183-745f-a811-eb5a1e1d2b60NotDimensionallyQualified" xlink:type="arc" order="275"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory_2a6feee3-9ada-4504-a355-36a3dc304111NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory_2a6feee3-9ada-4504-a355-36a3dc304111NotDimensionallyQualified" xlink:type="arc" order="276"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory_9ed07869-2ab6-40d9-b297-5e618d50a46bNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory_9ed07869-2ab6-40d9-b297-5e618d50a46bNotDimensionallyQualified" xlink:type="arc" order="277"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.vanlanschotkempen.com/role/Anchoring" xlink:type="simple" xlink:href="vlk-2025-12-31.xsd#Anchoring"/>
  <link:definitionLink xlink:role="http://www.vanlanschotkempen.com/role/Anchoring" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_vlk_AdjustmentsForIncreaseDecreaseInAmountsDueFromToBanks_b37c0d57-dead-4b19-99c3-d17b7f36adc8" xlink:href="vlk-2025-12-31.xsd#vlk_AdjustmentsForIncreaseDecreaseInAmountsDueFromToBanks"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInWorkingCapital"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:to="loc_vlk_AdjustmentsForIncreaseDecreaseInAmountsDueFromToBanks_b37c0d57-dead-4b19-99c3-d17b7f36adc8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInDepositsFromBanks" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInDepositsFromBanks"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_vlk_AdjustmentsForIncreaseDecreaseInAmountsDueFromToBanks_b37c0d57-dead-4b19-99c3-d17b7f36adc8" xlink:to="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInDepositsFromBanks" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInLoansAndAdvancesToBanks" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInLoansAndAdvancesToBanks"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_vlk_AdjustmentsForIncreaseDecreaseInAmountsDueFromToBanks_b37c0d57-dead-4b19-99c3-d17b7f36adc8" xlink:to="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInLoansAndAdvancesToBanks" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_AdjustmentsForIncreaseDecreaseInDerivatives_589eccd8-c08e-4cc8-84b0-a2d89421178d" xlink:href="vlk-2025-12-31.xsd#vlk_AdjustmentsForIncreaseDecreaseInDerivatives"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:to="loc_vlk_AdjustmentsForIncreaseDecreaseInDerivatives_589eccd8-c08e-4cc8-84b0-a2d89421178d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInDerivativeFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInDerivativeFinancialAssets"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_vlk_AdjustmentsForIncreaseDecreaseInDerivatives_589eccd8-c08e-4cc8-84b0-a2d89421178d" xlink:to="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInDerivativeFinancialAssets" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInDerivativeFinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInDerivativeFinancialLiabilities"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_vlk_AdjustmentsForIncreaseDecreaseInDerivatives_589eccd8-c08e-4cc8-84b0-a2d89421178d" xlink:to="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInDerivativeFinancialLiabilities" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_AdjustmentsForIncreaseDecreaseInFinancialAssetsLiabilitiesHeldForTrading_3468c8da-11a6-43bf-a70e-2dd9fb38b6fd" xlink:href="vlk-2025-12-31.xsd#vlk_AdjustmentsForIncreaseDecreaseInFinancialAssetsLiabilitiesHeldForTrading"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:to="loc_vlk_AdjustmentsForIncreaseDecreaseInFinancialAssetsLiabilitiesHeldForTrading_3468c8da-11a6-43bf-a70e-2dd9fb38b6fd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_vlk_AdjustmentsForIncreaseDecreaseInFinancialAssetsLiabilitiesHeldForTrading_3468c8da-11a6-43bf-a70e-2dd9fb38b6fd" xlink:to="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_vlk_AdjustmentsForIncreaseDecreaseInFinancialAssetsLiabilitiesHeldForTrading_3468c8da-11a6-43bf-a70e-2dd9fb38b6fd" xlink:to="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_AdjustmentsForIncreaseDecreaseOfOtherAssetsAndLiabilities_ec8f3926-b3d8-45fa-b519-3bde6523adcf" xlink:href="vlk-2025-12-31.xsd#vlk_AdjustmentsForIncreaseDecreaseOfOtherAssetsAndLiabilities"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:to="loc_vlk_AdjustmentsForIncreaseDecreaseOfOtherAssetsAndLiabilities_ec8f3926-b3d8-45fa-b519-3bde6523adcf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_vlk_AdjustmentsForIncreaseDecreaseOfOtherAssetsAndLiabilities_ec8f3926-b3d8-45fa-b519-3bde6523adcf" xlink:to="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_vlk_AdjustmentsForIncreaseDecreaseOfOtherAssetsAndLiabilities_ec8f3926-b3d8-45fa-b519-3bde6523adcf" xlink:to="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_AdjustmentsForUtilizationsOfProvisions_6beb6ea7-a490-49b9-8391-701696e5b574" xlink:href="vlk-2025-12-31.xsd#vlk_AdjustmentsForUtilizationsOfProvisions"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:to="loc_vlk_AdjustmentsForUtilizationsOfProvisions_6beb6ea7-a490-49b9-8391-701696e5b574" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_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"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_vlk_AdjustmentsForUtilizationsOfProvisions_6beb6ea7-a490-49b9-8391-701696e5b574" xlink:to="loc_ifrs-full_AdjustmentsForProvisions" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_CapitalSecurities_a893c6cb-8582-4341-aa57-636a892d39cb" xlink:href="vlk-2025-12-31.xsd#vlk_CapitalSecurities"/>
    <link:loc xlink:type="locator" xlink:label="loc_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"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_Equity" xlink:to="loc_vlk_CapitalSecurities_a893c6cb-8582-4341-aa57-636a892d39cb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_ComprehensiveIncomeAttributableToHoldersOfCapitalSecurities_130925b6-1c23-44d9-adf1-e82fb1779f82" xlink:href="vlk-2025-12-31.xsd#vlk_ComprehensiveIncomeAttributableToHoldersOfCapitalSecurities"/>
    <link:loc xlink:type="locator" xlink:label="loc_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"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_ComprehensiveIncome" xlink:to="loc_vlk_ComprehensiveIncomeAttributableToHoldersOfCapitalSecurities_130925b6-1c23-44d9-adf1-e82fb1779f82" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_IncreaseDecreaseThroughOtherChangesEquity_12faa52a-f1e3-4b71-b56f-3181896a42e9" xlink:href="vlk-2025-12-31.xsd#vlk_IncreaseDecreaseThroughOtherChangesEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:to="loc_vlk_IncreaseDecreaseThroughOtherChangesEquity_12faa52a-f1e3-4b71-b56f-3181896a42e9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_IncreaseDecreaseThroughTransfersToFromSharePremium_019c93f7-ff81-7839-a419-d128b82248a3" xlink:href="vlk-2025-12-31.xsd#vlk_IncreaseDecreaseThroughTransfersToFromSharePremium"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ChangesInEquity" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ChangesInEquity"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_ChangesInEquity" xlink:to="loc_vlk_IncreaseDecreaseThroughTransfersToFromSharePremium_019c93f7-ff81-7839-a419-d128b82248a3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_InterestExpenseCalculatedUsingEffectiveInterestMethod_9142c682-be2b-4d75-a641-6142948c1081" xlink:href="vlk-2025-12-31.xsd#vlk_InterestExpenseCalculatedUsingEffectiveInterestMethod"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestExpense"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_InterestExpense" xlink:to="loc_vlk_InterestExpenseCalculatedUsingEffectiveInterestMethod_9142c682-be2b-4d75-a641-6142948c1081" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestExpenseOnDepositsFromBanks" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestExpenseOnDepositsFromBanks"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_vlk_InterestExpenseCalculatedUsingEffectiveInterestMethod_9142c682-be2b-4d75-a641-6142948c1081" xlink:to="loc_ifrs-full_InterestExpenseOnDepositsFromBanks" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestExpenseOnBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestExpenseOnBorrowings"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_vlk_InterestExpenseCalculatedUsingEffectiveInterestMethod_9142c682-be2b-4d75-a641-6142948c1081" xlink:to="loc_ifrs-full_InterestExpenseOnBorrowings" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestExpenseOnDebtInstrumentsIssued" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestExpenseOnDebtInstrumentsIssued"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_vlk_InterestExpenseCalculatedUsingEffectiveInterestMethod_9142c682-be2b-4d75-a641-6142948c1081" xlink:to="loc_ifrs-full_InterestExpenseOnDebtInstrumentsIssued" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestExpenseOnDepositsFromCustomers" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestExpenseOnDepositsFromCustomers"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_vlk_InterestExpenseCalculatedUsingEffectiveInterestMethod_9142c682-be2b-4d75-a641-6142948c1081" xlink:to="loc_ifrs-full_InterestExpenseOnDepositsFromCustomers" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_NetGainsLossesOnFinancialTransactions_5acc4e05-57ef-4a0f-bfcc-6a3e2951d2a8" xlink:href="vlk-2025-12-31.xsd#vlk_NetGainsLossesOnFinancialTransactions"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherGainsLosses" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherGainsLosses"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherGainsLosses" xlink:to="loc_vlk_NetGainsLossesOnFinancialTransactions_5acc4e05-57ef-4a0f-bfcc-6a3e2951d2a8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnFinancialLiabilitiesAtFairValueThroughProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnFinancialLiabilitiesAtFairValueThroughProfitOrLoss"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_vlk_NetGainsLossesOnFinancialTransactions_5acc4e05-57ef-4a0f-bfcc-6a3e2951d2a8" xlink:to="loc_ifrs-full_GainsLossesOnFinancialLiabilitiesAtFairValueThroughProfitOrLoss" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_vlk_NetGainsLossesOnFinancialTransactions_5acc4e05-57ef-4a0f-bfcc-6a3e2951d2a8" xlink:to="loc_ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_NetIncreaseDecreaseInNonControllingInterestsClassifiedAsFinancingActivities_a8b58f1e-61bc-4eea-be6f-9bb433af5468" xlink:href="vlk-2025-12-31.xsd#vlk_NetIncreaseDecreaseInNonControllingInterestsClassifiedAsFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_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"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities" xlink:to="loc_vlk_NetIncreaseDecreaseInNonControllingInterestsClassifiedAsFinancingActivities_a8b58f1e-61bc-4eea-be6f-9bb433af5468" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_OtherCashPaymentsToAcquireDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities_c1d7b6e2-0c85-45b2-aa95-39fb32a2b1c7" xlink:href="vlk-2025-12-31.xsd#vlk_OtherCashPaymentsToAcquireDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_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"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherCashPaymentsToAcquireEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities" xlink:to="loc_vlk_OtherCashPaymentsToAcquireDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities_c1d7b6e2-0c85-45b2-aa95-39fb32a2b1c7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_OtherCashPaymentsToAcquireEquityInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities_ae0ce8e9-edd4-4b6f-87e1-3c90c310362d" xlink:href="vlk-2025-12-31.xsd#vlk_OtherCashPaymentsToAcquireEquityInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherCashPaymentsToAcquireEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities" xlink:to="loc_vlk_OtherCashPaymentsToAcquireEquityInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities_ae0ce8e9-edd4-4b6f-87e1-3c90c310362d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_OtherCashReceiptsFromSalesOfDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities_14a9d2da-d0bc-4b0b-9157-6afae2d2bb73" xlink:href="vlk-2025-12-31.xsd#vlk_OtherCashReceiptsFromSalesOfDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_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"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherCashReceiptsFromSalesOfEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities" xlink:to="loc_vlk_OtherCashReceiptsFromSalesOfDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities_14a9d2da-d0bc-4b0b-9157-6afae2d2bb73" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_OtherCashReceiptsFromSalesOfEquityInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities_27082796-dade-4591-a027-c83daae82666" xlink:href="vlk-2025-12-31.xsd#vlk_OtherCashReceiptsFromSalesOfEquityInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherCashReceiptsFromSalesOfEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities" xlink:to="loc_vlk_OtherCashReceiptsFromSalesOfEquityInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities_27082796-dade-4591-a027-c83daae82666" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_OtherNonControllingInterests_bc426a56-b109-4184-a7da-06ce37adb13c" xlink:href="vlk-2025-12-31.xsd#vlk_OtherNonControllingInterests"/>
    <link:loc xlink:type="locator" xlink:label="loc_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"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_NoncontrollingInterests" xlink:to="loc_vlk_OtherNonControllingInterests_bc426a56-b109-4184-a7da-06ce37adb13c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_PaymentsOfFinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsFinancingActivities_93c51639-3918-4372-9e01-dc59e0722502" xlink:href="vlk-2025-12-31.xsd#vlk_PaymentsOfFinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities" xlink:to="loc_vlk_PaymentsOfFinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsFinancingActivities_93c51639-3918-4372-9e01-dc59e0722502" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_ProceedsFromFinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsFinancingActivities_b204448b-32a8-465e-9565-fbbe6aa3bd73" xlink:href="vlk-2025-12-31.xsd#vlk_ProceedsFromFinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities" xlink:to="loc_vlk_ProceedsFromFinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsFinancingActivities_b204448b-32a8-465e-9565-fbbe6aa3bd73" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_ProfitLossAttributableToHoldersOfCapitalSecurities_8cbd792f-e77d-4309-96be-a16bbb4266b6" xlink:href="vlk-2025-12-31.xsd#vlk_ProfitLossAttributableToHoldersOfCapitalSecurities"/>
    <link:loc xlink:type="locator" xlink:label="loc_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"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_ProfitLoss" xlink:to="loc_vlk_ProfitLossAttributableToHoldersOfCapitalSecurities_8cbd792f-e77d-4309-96be-a16bbb4266b6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_RetainedEarningsAttributableToCapitalSecurities_7cc38716-1b48-4bbd-9d19-10c750f8c314" xlink:href="vlk-2025-12-31.xsd#vlk_RetainedEarningsAttributableToCapitalSecurities"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_Equity" xlink:to="loc_vlk_RetainedEarningsAttributableToCapitalSecurities_7cc38716-1b48-4bbd-9d19-10c750f8c314" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vlk_RetainedEarningsAttributableToOtherNonControllingInterests_ab0155cb-a4bd-43af-82c8-1da218d1a716" xlink:href="vlk-2025-12-31.xsd#vlk_RetainedEarningsAttributableToOtherNonControllingInterests"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_NoncontrollingInterests" xlink:to="loc_vlk_RetainedEarningsAttributableToOtherNonControllingInterests_ab0155cb-a4bd-43af-82c8-1da218d1a716" xlink:type="arc" order="1"/>
  </link:definitionLink>
</link:linkbase>
