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    <link:label id="lab_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities_c7bf8c1d-71e6-4cb8-8334-12064680aa79_negatedTerseLabel_en" xlink:label="lab_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Proceeds from borrowings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:to="lab_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForGainsLossesOnFairValueAdjustmentInvestmentProperty_2bf8e995-3546-42a4-85ae-eb9f0fab544e_negatedTerseLabel_en" xlink:label="lab_ifrs-full_AdjustmentsForGainsLossesOnFairValueAdjustmentInvestmentProperty" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Adjustments for gains (losses) on fair value adjustment, investment property</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForGainsLossesOnFairValueAdjustmentInvestmentProperty" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_AdjustmentsForGainsLossesOnFairValueAdjustmentInvestmentProperty"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForGainsLossesOnFairValueAdjustmentInvestmentProperty" xlink:to="lab_ifrs-full_AdjustmentsForGainsLossesOnFairValueAdjustmentInvestmentProperty" xlink:type="arc" order="1"/>
    <link:label id="lab_mer_ProfitLossAttributableToOwnersOfParentMember_label_en" xlink:label="lab_mer_ProfitLossAttributableToOwnersOfParentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Profit Loss Attributable To Owners Of Parent [Member]</link:label>
    <link:label id="lab_mer_ProfitLossAttributableToOwnersOfParentMember_documentation_en" xlink:label="lab_mer_ProfitLossAttributableToOwnersOfParentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">This member stands for a component of equity representing Profit Loss Attributable To Owners Of Parent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_ProfitLossAttributableToOwnersOfParentMember" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_ProfitLossAttributableToOwnersOfParentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mer_ProfitLossAttributableToOwnersOfParentMember" xlink:to="lab_mer_ProfitLossAttributableToOwnersOfParentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_mer_CollectionOfDividendsOrRefundsOfIssuancePremiumOfAssociatedCompanies_label_en" xlink:label="lab_mer_CollectionOfDividendsOrRefundsOfIssuancePremiumOfAssociatedCompanies" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Collection of dividends or refunds of issuance premium of associated companies</link:label>
    <link:label id="lab_mer_CollectionOfDividendsOrRefundsOfIssuancePremiumOfAssociatedCompanies_documentation_en" xlink:label="lab_mer_CollectionOfDividendsOrRefundsOfIssuancePremiumOfAssociatedCompanies" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Collection of dividends or refunds of issuance premium of associated companies</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_CollectionOfDividendsOrRefundsOfIssuancePremiumOfAssociatedCompanies" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_CollectionOfDividendsOrRefundsOfIssuancePremiumOfAssociatedCompanies"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mer_CollectionOfDividendsOrRefundsOfIssuancePremiumOfAssociatedCompanies" xlink:to="lab_mer_CollectionOfDividendsOrRefundsOfIssuancePremiumOfAssociatedCompanies" xlink:type="arc" order="1"/>
    <link:label id="lab_mer_ChangeInFairValueOfAllFinancialInstruments_label_en" xlink:label="lab_mer_ChangeInFairValueOfAllFinancialInstruments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Change in fair value of all financial instruments</link:label>
    <link:label id="lab_mer_ChangeInFairValueOfAllFinancialInstruments_documentation_en" xlink:label="lab_mer_ChangeInFairValueOfAllFinancialInstruments" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Change in fair value of all financial instruments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_ChangeInFairValueOfAllFinancialInstruments" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_ChangeInFairValueOfAllFinancialInstruments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mer_ChangeInFairValueOfAllFinancialInstruments" xlink:to="lab_mer_ChangeInFairValueOfAllFinancialInstruments" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInWorkingCapital_be8e9a65-2582-41a0-bd3a-c7c96e8f195b_negatedTotalLabel_en" xlink:label="lab_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Increase (decrease) in working capital</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_IncreaseDecreaseInWorkingCapital"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:to="lab_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables_ea320b71-3f04-4252-bf94-a18b31dcaf81_negatedTerseLabel_en" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Adjustments for increase (decrease) in trade and other payables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" xlink:to="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" xlink:type="arc" order="1"/>
    <link:label id="lab_mer_ContributionsFromDiscontinuedFinancialActivities_label_en" xlink:label="lab_mer_ContributionsFromDiscontinuedFinancialActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Contributions from discontinued financial activities</link:label>
    <link:label id="lab_mer_ContributionsFromDiscontinuedFinancialActivities_documentation_en" xlink:label="lab_mer_ContributionsFromDiscontinuedFinancialActivities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Contributions from discontinued financial activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_ContributionsFromDiscontinuedFinancialActivities" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_ContributionsFromDiscontinuedFinancialActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mer_ContributionsFromDiscontinuedFinancialActivities" xlink:to="lab_mer_ContributionsFromDiscontinuedFinancialActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_mer_OtherEquityInstruments_c26b0b01-9262-4197-bc91-f2a7298af31b_negatedLabel_en" xlink:label="lab_mer_OtherEquityInstruments" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Other Equity Instruments</link:label>
    <link:label id="lab_mer_OtherEquityInstruments_label_en" xlink:label="lab_mer_OtherEquityInstruments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Other Equity Instruments</link:label>
    <link:label id="lab_mer_OtherEquityInstruments_documentation_en" xlink:label="lab_mer_OtherEquityInstruments" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Other Equity Instruments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_OtherEquityInstruments" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_OtherEquityInstruments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mer_OtherEquityInstruments" xlink:to="lab_mer_OtherEquityInstruments" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainsLossesOnFairValueAdjustmentInvestmentProperty_9809f132-9794-4527-b10a-0938f76b8974_negatedLabel_en" xlink:label="lab_ifrs-full_GainsLossesOnFairValueAdjustmentInvestmentProperty" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Gains (losses) on fair value adjustment, investment property</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnFairValueAdjustmentInvestmentProperty" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_GainsLossesOnFairValueAdjustmentInvestmentProperty"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesOnFairValueAdjustmentInvestmentProperty" xlink:to="lab_ifrs-full_GainsLossesOnFairValueAdjustmentInvestmentProperty" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForFinanceIncome_f243897e-c8ab-4d0d-9677-b301aa733cc7_negatedTerseLabel_en" xlink:label="lab_ifrs-full_AdjustmentsForFinanceIncome" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Adjustments for finance income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForFinanceIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_AdjustmentsForFinanceIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForFinanceIncome" xlink:to="lab_ifrs-full_AdjustmentsForFinanceIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_mer_DisclosureOfChangesInConsolidationPerimeterTextBlock_label_en" xlink:label="lab_mer_DisclosureOfChangesInConsolidationPerimeterTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Disclosure of changes in consolidation perimeter [Text Block]</link:label>
    <link:label id="lab_mer_DisclosureOfChangesInConsolidationPerimeterTextBlock_documentation_en" xlink:label="lab_mer_DisclosureOfChangesInConsolidationPerimeterTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">The disclosure of the changes in the consolidation perimeter.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_DisclosureOfChangesInConsolidationPerimeterTextBlock" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_DisclosureOfChangesInConsolidationPerimeterTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mer_DisclosureOfChangesInConsolidationPerimeterTextBlock" xlink:to="lab_mer_DisclosureOfChangesInConsolidationPerimeterTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_mer_ShareBasedPayments_7f62e352-4c96-4c77-b2d7-0f9ac3f07e0b_netLabel_en" xlink:label="lab_mer_ShareBasedPayments" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Share-based payments</link:label>
    <link:label id="lab_mer_ShareBasedPayments_label_en" xlink:label="lab_mer_ShareBasedPayments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Share-based payments</link:label>
    <link:label id="lab_mer_ShareBasedPayments_documentation_en" xlink:label="lab_mer_ShareBasedPayments" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Share-based payments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_ShareBasedPayments" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_ShareBasedPayments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mer_ShareBasedPayments" xlink:to="lab_mer_ShareBasedPayments" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares_69c4806f-81db-4306-9386-ab17945fd050_negatedTerseLabel_en" xlink:label="lab_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Payments to acquire or redeem entity's shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_PaymentsToAcquireOrRedeemEntitysShares"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:to="lab_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:type="arc" order="1"/>
    <link:label id="lab_mer_CashAndCashEquivalentsIncorporatedInTheTransactionDiscontinuedOperations_label_en" xlink:label="lab_mer_CashAndCashEquivalentsIncorporatedInTheTransactionDiscontinuedOperations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Cash and cash equivalents incorporated in the transaction, discontinued operations</link:label>
    <link:label id="lab_mer_CashAndCashEquivalentsIncorporatedInTheTransactionDiscontinuedOperations_documentation_en" xlink:label="lab_mer_CashAndCashEquivalentsIncorporatedInTheTransactionDiscontinuedOperations" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Cash and cash equivalents incorporated in the transaction, discontinued operations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_CashAndCashEquivalentsIncorporatedInTheTransactionDiscontinuedOperations" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_CashAndCashEquivalentsIncorporatedInTheTransactionDiscontinuedOperations"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mer_CashAndCashEquivalentsIncorporatedInTheTransactionDiscontinuedOperations" xlink:to="lab_mer_CashAndCashEquivalentsIncorporatedInTheTransactionDiscontinuedOperations" xlink:type="arc" order="1"/>
    <link:label id="lab_mer_DistributionOfResults_2ce1f8d0-e302-4d6a-b19a-79c709340558_netLabel_en" xlink:label="lab_mer_DistributionOfResults" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Distribution of results</link:label>
    <link:label id="lab_mer_DistributionOfResults_label_en" xlink:label="lab_mer_DistributionOfResults" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Distribution of results</link:label>
    <link:label id="lab_mer_DistributionOfResults_documentation_en" xlink:label="lab_mer_DistributionOfResults" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">The amount of distribution of results</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_DistributionOfResults" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_DistributionOfResults"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mer_DistributionOfResults" xlink:to="lab_mer_DistributionOfResults" xlink:type="arc" order="1"/>
    <link:label id="lab_mer_IncreaseDecreaseThroughShareBasedPaymentTransactionsStockPlanEquity_643dce52-8a37-460c-b874-61f8c7fbf27c_totalLabel_en" xlink:label="lab_mer_IncreaseDecreaseThroughShareBasedPaymentTransactionsStockPlanEquity" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Increase (decrease) through share-based payment transactions Stock Plan, equity</link:label>
    <link:label id="lab_mer_IncreaseDecreaseThroughShareBasedPaymentTransactionsStockPlanEquity_label_en" xlink:label="lab_mer_IncreaseDecreaseThroughShareBasedPaymentTransactionsStockPlanEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Increase (decrease) through share-based payment transactions Stock Plan, equity</link:label>
    <link:label id="lab_mer_IncreaseDecreaseThroughShareBasedPaymentTransactionsStockPlanEquity_documentation_en" xlink:label="lab_mer_IncreaseDecreaseThroughShareBasedPaymentTransactionsStockPlanEquity" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">The increase (decrease) in equity resulting from share-based payment transactions. [Refer: Equity]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_IncreaseDecreaseThroughShareBasedPaymentTransactionsStockPlanEquity" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_IncreaseDecreaseThroughShareBasedPaymentTransactionsStockPlanEquity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mer_IncreaseDecreaseThroughShareBasedPaymentTransactionsStockPlanEquity" xlink:to="lab_mer_IncreaseDecreaseThroughShareBasedPaymentTransactionsStockPlanEquity" xlink:type="arc" order="1"/>
    <link:label id="lab_mer_CancellationOfInterestRateDerivatives_label_en" xlink:label="lab_mer_CancellationOfInterestRateDerivatives" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Cancellation of interest rate derivatives</link:label>
    <link:label id="lab_mer_CancellationOfInterestRateDerivatives_documentation_en" xlink:label="lab_mer_CancellationOfInterestRateDerivatives" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Cancellation of interest rate derivatives</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_CancellationOfInterestRateDerivatives" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_CancellationOfInterestRateDerivatives"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mer_CancellationOfInterestRateDerivatives" xlink:to="lab_mer_CancellationOfInterestRateDerivatives" xlink:type="arc" order="1"/>
    <link:label id="lab_mer_ProceedsAndPaymentsFromFinancialLiabilities_f97d9bf1-a71e-4884-960e-9c32a7f61fb4_totalLabel_en" xlink:label="lab_mer_ProceedsAndPaymentsFromFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Proceeds and payments from financial liabilities</link:label>
    <link:label id="lab_mer_ProceedsAndPaymentsFromFinancialLiabilities_label_en" xlink:label="lab_mer_ProceedsAndPaymentsFromFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Proceeds and payments from financial liabilities</link:label>
    <link:label id="lab_mer_ProceedsAndPaymentsFromFinancialLiabilities_documentation_en" xlink:label="lab_mer_ProceedsAndPaymentsFromFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Proceeds and payments from financial liabilities</link:label>
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    <link:label id="lab_ifrs-full_DepreciationAndAmortisationExpense_3205ff62-6bd3-4176-bda2-429e9c06cdfe_negatedTerseLabel_en" xlink:label="lab_ifrs-full_DepreciationAndAmortisationExpense" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Depreciation and amortisation expense</link:label>
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    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughTreasuryShareTransactions_b537d0cc-8887-4e95-bdc0-4a3ef0d98c84_totalLabel_en" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughTreasuryShareTransactions" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Increase (decrease) through treasury share transactions, equity</link:label>
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    <link:label id="lab_ifrs-full_PurchaseOfInvestmentProperty_15281cb4-b505-4950-a52a-657903698e3d_negatedTerseLabel_en" xlink:label="lab_ifrs-full_PurchaseOfInvestmentProperty" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Purchase of investment property</link:label>
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    <link:label id="lab_ifrs-full_ProceedsFromSalesOfInvestmentProperty_1f13efd7-53bc-4138-be98-99231bb95cde_negatedTerseLabel_en" xlink:label="lab_ifrs-full_ProceedsFromSalesOfInvestmentProperty" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Proceeds from sales of investment property</link:label>
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    <link:label id="lab_ifrs-full_AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod_15f37786-ea00-4a6f-b700-cb0eea235344_negatedTerseLabel_en" xlink:label="lab_ifrs-full_AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Adjustments for undistributed profits of investments accounted for using equity method</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod"/>
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    <link:label id="lab_mer_ProfitLossAttributableToOwnersOfTheParent_label_en" xlink:label="lab_mer_ProfitLossAttributableToOwnersOfTheParent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Profit (loss) attributable to owners of the parent</link:label>
    <link:label id="lab_mer_ProfitLossAttributableToOwnersOfTheParent_documentation_en" xlink:label="lab_mer_ProfitLossAttributableToOwnersOfTheParent" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Profit (loss) attributable to owners of the parent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_ProfitLossAttributableToOwnersOfTheParent" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_ProfitLossAttributableToOwnersOfTheParent"/>
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    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity_427e5710-de03-410b-8978-b372d0170fc3_totalLabel_en" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Increase (decrease) through other changes, equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity"/>
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    <link:loc xlink:type="locator" xlink:label="loc_mer_OtherEquityHolderContributions" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_OtherEquityHolderContributions"/>
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    <link:label id="lab_mer_InterimDividendMember_label_en" xlink:label="lab_mer_InterimDividendMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Interim dividend [Member]</link:label>
    <link:label id="lab_mer_InterimDividendMember_documentation_en" xlink:label="lab_mer_InterimDividendMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">This member stands for the interim dividends.</link:label>
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    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperations_4106c30b-3572-400c-878a-0474e201fa37_negatedTotalLabel_en" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperations" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Cash flows from (used in) operations</link:label>
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    <link:label id="lab_mer_OtherEquityHolderContributionsMember_label_en" xlink:label="lab_mer_OtherEquityHolderContributionsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Other equity holder contributions [Member]</link:label>
    <link:label id="lab_mer_OtherEquityHolderContributionsMember_documentation_en" xlink:label="lab_mer_OtherEquityHolderContributionsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Other equity holder contributions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_OtherEquityHolderContributionsMember" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_OtherEquityHolderContributionsMember"/>
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    <link:label id="lab_mer_PerimeterVariations_7c8a3e54-954d-463a-8db9-3be3e7403d36_totalLabel_en" xlink:label="lab_mer_PerimeterVariations" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Perimeter variations</link:label>
    <link:label id="lab_mer_PerimeterVariations_label_en" xlink:label="lab_mer_PerimeterVariations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Perimeter variations</link:label>
    <link:label id="lab_mer_PerimeterVariations_documentation_en" xlink:label="lab_mer_PerimeterVariations" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Perimeter variations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_PerimeterVariations" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_PerimeterVariations"/>
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    <link:label id="lab_ifrs-full_IncomeTaxesPaidRefund_1b766ee7-2340-482a-8aa5-e3b0131851f5_negatedLabel_en" xlink:label="lab_ifrs-full_IncomeTaxesPaidRefund" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en">Income taxes paid (refund)</link:label>
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