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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_hyl_AdjustmentsForDecreaseIncreaseInOtherCurrentAndNonCurrentAssets" xml:lang="fr">Autres actifs courants et non-courants.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_hyl_AdjustmentsForDecreaseIncreaseInOtherCurrentAndNonCurrentAssets" xml:lang="en">Adjustments for decrease increase in other current and non current assets.</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_hyl_AdjustmentsForIncreaseDecreaseInOtherCurrentAndNoncurrentLiabilities" xml:lang="fr">Adjustments for increase decrease in other current and noncurrent liabilities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_hyl_AdjustmentsForIncreaseDecreaseInOtherCurrentAndNoncurrentLiabilities" xml:lang="en">Autres passifs courants et non-courants.</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities" xlink:label="loc_ifrs-full_CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ifrs-full_CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities" xml:lang="fr">Avances de trésorerie et prêts faits à des tiers, classés 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_CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:label="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" />
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    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:label="loc_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_hyl_ReimbursementsOfBorrowingsAndOtherFinancialLiabilities" xml:lang="en">Reimbursements of borrowings and other financial liabilities</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_hyl_ReimbursementsOfBorrowingsAndOtherFinancialLiabilities" xlink:to="lab_hyl_ReimbursementsOfBorrowingsAndOtherFinancialLiabilities" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_hyl_ReimbursementsOfBorrowingsAndOtherFinancialLiabilities" xml:lang="fr">Remboursements des prêts actionnaires.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_hyl_ReimbursementsOfBorrowingsAndOtherFinancialLiabilities" xml:lang="en">Reimbursements of borrowings and other financial liabilities.</label>
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    <loc xlink:type="locator" xlink:href="875500LZIWS7QEQE0I73-2021-12-31.xsd#hyl_NetProceedsFromInitialPublicOffering" xlink:label="loc_hyl_NetProceedsFromInitialPublicOffering" />
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