<?xml version="1.0" encoding="utf-8"?>
<!--Generated by DataTracks Rainbow version 3.5 for Toppan Merrill on 29-April-2026 [05:11:44] {PM}-->
<linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
<roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel" roleURI="http://www.xbrl.org/2009/role/negatedLabel" />
<roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel" roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" />
<roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel" roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" />
<roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel" roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" />
<roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel" roleURI="http://www.xbrl.org/2009/role/negatedNetLabel" />
<roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel" roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" />
<roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel" roleURI="http://www.xbrl.org/2009/role/netLabel" />
<labelLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GeneralAndAdministrativeExpense" xlink:label="loc_ifrs-full_GeneralAndAdministrativeExpense" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_GeneralAndAdministrativeExpense" xml:lang="fr">Frais généraux et administratifs</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GeneralAndAdministrativeExpense" xlink:to="lab_ifrs-full_GeneralAndAdministrativeExpense" />
<loc xlink:type="locator" xlink:href="875500LZIWS7QEQE0I73-2025-12-31.xsd#hyl_ImpairmentReversalOfImpairmentOnEquityAccountedInvestees" xlink:label="loc_hyl_ImpairmentReversalOfImpairmentOnEquityAccountedInvestees" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_hyl_ImpairmentReversalOfImpairmentOnEquityAccountedInvestees" xml:lang="fr">Dépréciation reprise de dépréciation sur entités mises en équivalence</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_hyl_ImpairmentReversalOfImpairmentOnEquityAccountedInvestees" xml:lang="fr">Dépréciation reprise de dépréciation sur entités mises en équivalence</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_hyl_ImpairmentReversalOfImpairmentOnEquityAccountedInvestees" xlink:to="lab_hyl_ImpairmentReversalOfImpairmentOnEquityAccountedInvestees" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_hyl_ImpairmentReversalOfImpairmentOnEquityAccountedInvestees" xml:lang="fr">Dépréciation/reprise de dépréciation sur entités mises en équivalence.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:label="loc_ifrs-full_IncomeTaxExpenseContinuingOperations" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_IncomeTaxExpenseContinuingOperations" xml:lang="fr">Charge (produit) d'impôt</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:to="lab_ifrs-full_IncomeTaxExpenseContinuingOperations" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OperatingExpense" xlink:label="loc_ifrs-full_OperatingExpense" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:label="lab_ifrs-full_OperatingExpense" xml:lang="fr">Charges d'exploitation</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OperatingExpense" xlink:to="lab_ifrs-full_OperatingExpense" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ResearchAndDevelopmentExpense" xlink:label="loc_ifrs-full_ResearchAndDevelopmentExpense" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_ResearchAndDevelopmentExpense" xml:lang="fr">Dépenses de recherche et développement</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ResearchAndDevelopmentExpense" xlink:to="lab_ifrs-full_ResearchAndDevelopmentExpense" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RevenueAndOperatingIncome" xlink:label="loc_ifrs-full_RevenueAndOperatingIncome" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_RevenueAndOperatingIncome" xml:lang="fr">Produits des activités ordinaires et autres recettes d'exploitation</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RevenueAndOperatingIncome" xlink:to="lab_ifrs-full_RevenueAndOperatingIncome" />
<loc xlink:type="locator" xlink:href="875500LZIWS7QEQE0I73-2025-12-31.xsd#hyl_CoutDuCapitalMember" xlink:label="loc_hyl_CoutDuCapitalMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_hyl_CoutDuCapitalMember" xml:lang="fr">Coût du capital [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_hyl_CoutDuCapitalMember" xlink:to="lab_hyl_CoutDuCapitalMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_hyl_CoutDuCapitalMember" xml:lang="fr">Coût du Capital</label>
<loc xlink:type="locator" xlink:href="875500LZIWS7QEQE0I73-2025-12-31.xsd#hyl_TransfertDesRservesSbpAuRsultatReport" xlink:label="loc_hyl_TransfertDesRservesSbpAuRsultatReport" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_hyl_TransfertDesRservesSbpAuRsultatReport" xml:lang="fr">Transfert Des Rserves SBP Au Rsultat Report</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_hyl_TransfertDesRservesSbpAuRsultatReport" xlink:to="lab_hyl_TransfertDesRservesSbpAuRsultatReport" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_hyl_TransfertDesRservesSbpAuRsultatReport" xml:lang="fr">Transfert des réserves sbp au résultat reporté.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities" xml:lang="fr">Flux de trésorerie résultant (utilisés dans le cadre) d'activités de financement</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:to="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestPaidClassifiedAsFinancingActivities" xlink:label="loc_ifrs-full_InterestPaidClassifiedAsFinancingActivities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_InterestPaidClassifiedAsFinancingActivities" xml:lang="fr">Intérêts payés, classés dans les activités de financement</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestPaidClassifiedAsFinancingActivities" xlink:to="lab_ifrs-full_InterestPaidClassifiedAsFinancingActivities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:label="loc_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xml:lang="fr">Paiements de passifs au titre de contrats de location, classés dans les activités de financement</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:to="lab_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:label="loc_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xml:lang="fr">Remboursements d'emprunts, classés dans les activités de financement</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:to="lab_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:label="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities" xml:lang="fr">Flux de trésorerie résultant (utilisés dans le cadre) d'activités d'investissement</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:to="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities" />
<loc xlink:type="locator" xlink:href="875500LZIWS7QEQE0I73-2025-12-31.xsd#hyl_InvestmentInEquityAccountedInvesteesClassifiedAsInvestingActivities" xlink:label="loc_hyl_InvestmentInEquityAccountedInvesteesClassifiedAsInvestingActivities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_hyl_InvestmentInEquityAccountedInvesteesClassifiedAsInvestingActivities" xml:lang="fr">Investissements dans participations mises en équivalence</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_hyl_InvestmentInEquityAccountedInvesteesClassifiedAsInvestingActivities" xml:lang="fr">Investissements dans participations mises en équivalence</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_hyl_InvestmentInEquityAccountedInvesteesClassifiedAsInvestingActivities" xlink:to="lab_hyl_InvestmentInEquityAccountedInvesteesClassifiedAsInvestingActivities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_hyl_InvestmentInEquityAccountedInvesteesClassifiedAsInvestingActivities" xml:lang="fr">Investment in equity accounted investees classified as investing activities.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:label="loc_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xml:lang="fr">Achat d'immobilisations incorporelles, classé dans les activités d'investissement</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:label="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xml:lang="fr">Achat d'immobilisations corporelles, classé dans les activités d'investissement</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForFinanceIncomeCost" xlink:label="loc_ifrs-full_AdjustmentsForFinanceIncomeCost" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_AdjustmentsForFinanceIncomeCost" xml:lang="fr">Ajustements pour produits financiers (charges financières)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForFinanceIncomeCost" xlink:to="lab_ifrs-full_AdjustmentsForFinanceIncomeCost" />
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForGainLossOnDisposalOfInvestmentsInSubsidiariesJointVenturesAndAssociates" xlink:label="loc_ifrs-full_AdjustmentsForGainLossOnDisposalOfInvestmentsInSubsidiariesJointVenturesAndAssociates" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_AdjustmentsForGainLossOnDisposalOfInvestmentsInSubsidiariesJointVenturesAndAssociates" xml:lang="fr">Ajustements pour profits (pertes) réalisés sur la cession de participations dans des filiales, des coentreprises et des entreprises associées</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForGainLossOnDisposalOfInvestmentsInSubsidiariesJointVenturesAndAssociates" xlink:to="lab_ifrs-full_AdjustmentsForGainLossOnDisposalOfInvestmentsInSubsidiariesJointVenturesAndAssociates" />
<loc xlink:type="locator" xlink:href="875500LZIWS7QEQE0I73-2025-12-31.xsd#hyl_AdjustmentsForImpairmentReversalOfImpairmentOnEquityAccountedInvestees" xlink:label="loc_hyl_AdjustmentsForImpairmentReversalOfImpairmentOnEquityAccountedInvestees" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_hyl_AdjustmentsForImpairmentReversalOfImpairmentOnEquityAccountedInvestees" xml:lang="fr">Dépréciation reprise de dépréciation sur participations mises en équivalence</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_hyl_AdjustmentsForImpairmentReversalOfImpairmentOnEquityAccountedInvestees" xlink:to="lab_hyl_AdjustmentsForImpairmentReversalOfImpairmentOnEquityAccountedInvestees" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_hyl_AdjustmentsForImpairmentReversalOfImpairmentOnEquityAccountedInvestees" xml:lang="fr">Dépréciation/reprise de dépréciation sur participations mises en équivalence.</label>
<loc xlink:type="locator" xlink:href="875500LZIWS7QEQE0I73-2025-12-31.xsd#hyl_AdjustmentsForUnrealizedExchangeLossGainAndOtherNoncashFinancialResult" xlink:label="loc_hyl_AdjustmentsForUnrealizedExchangeLossGainAndOtherNoncashFinancialResult" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_hyl_AdjustmentsForUnrealizedExchangeLossGainAndOtherNoncashFinancialResult" xml:lang="fr">Gain perte de change non réalisées et autres éléments non-cash du résultat financier</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_hyl_AdjustmentsForUnrealizedExchangeLossGainAndOtherNoncashFinancialResult" xlink:to="lab_hyl_AdjustmentsForUnrealizedExchangeLossGainAndOtherNoncashFinancialResult" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_hyl_AdjustmentsForUnrealizedExchangeLossGainAndOtherNoncashFinancialResult" xml:lang="fr">Adjustments for unrealized exchange loss gain and other non-cash financial result.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities" xml:lang="fr">Flux de trésorerie résultant (utilisés dans le cadre) des activités opérationnelles</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:to="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities" />
<loc xlink:type="locator" xlink:href="875500LZIWS7QEQE0I73-2025-12-31.xsd#hyl_ChangesInWorkingCapitalAbstract" xlink:label="loc_hyl_ChangesInWorkingCapitalAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_hyl_ChangesInWorkingCapitalAbstract" xml:lang="fr">Variations du fond de roulement [abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_hyl_ChangesInWorkingCapitalAbstract" xlink:to="lab_hyl_ChangesInWorkingCapitalAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_hyl_ChangesInWorkingCapitalAbstract" xml:lang="fr">Variations du fond de roulement.</label>
<loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" xlink:label="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" xml:lang="fr">Augmentation (diminution) de la trésorerie et des équivalents de trésorerie</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" xlink:to="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" />
<loc xlink:type="locator" xlink:href="875500LZIWS7QEQE0I73-2025-12-31.xsd#hyl_DescriptionOfAccountingPolicyForCostOfSalesTextBlock" xlink:label="loc_hyl_DescriptionOfAccountingPolicyForCostOfSalesTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_hyl_DescriptionOfAccountingPolicyForCostOfSalesTextBlock" xml:lang="fr">Description de la méthode comptable concernant la coût des ventes [Text Block]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_hyl_DescriptionOfAccountingPolicyForCostOfSalesTextBlock" xlink:to="lab_hyl_DescriptionOfAccountingPolicyForCostOfSalesTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_hyl_DescriptionOfAccountingPolicyForCostOfSalesTextBlock" xml:lang="fr">Description de la méthode comptable concernant la coût des ventes.</label>
<loc xlink:type="locator" xlink:href="875500LZIWS7QEQE0I73-2025-12-31.xsd#hyl_DisclosureOfInterestRateRiskExplanatoryTextBlock" xlink:label="loc_hyl_DisclosureOfInterestRateRiskExplanatoryTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_hyl_DisclosureOfInterestRateRiskExplanatoryTextBlock" xml:lang="fr">Informations relatives aux risque de taux d'intérêt [Text Block]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_hyl_DisclosureOfInterestRateRiskExplanatoryTextBlock" xlink:to="lab_hyl_DisclosureOfInterestRateRiskExplanatoryTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_hyl_DisclosureOfInterestRateRiskExplanatoryTextBlock" xml:lang="fr">Informations relatives aux risque de taux d'intérêt.</label>
<loc xlink:type="locator" xlink:href="875500LZIWS7QEQE0I73-2025-12-31.xsd#hyl_DisclosureOfPerformanceAndPresentationComparabilityExplanatoryTextBlock" xlink:label="loc_hyl_DisclosureOfPerformanceAndPresentationComparabilityExplanatoryTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_hyl_DisclosureOfPerformanceAndPresentationComparabilityExplanatoryTextBlock" xml:lang="fr">Informations relatives aux Comparabilité des performances et présentation [Text Block]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_hyl_DisclosureOfPerformanceAndPresentationComparabilityExplanatoryTextBlock" xlink:to="lab_hyl_DisclosureOfPerformanceAndPresentationComparabilityExplanatoryTextBlock" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_hyl_DisclosureOfPerformanceAndPresentationComparabilityExplanatoryTextBlock" xml:lang="fr">Informations relatives aux Comparabilité des performances et présentation.</label>
</labelLink>
</linkbase>