﻿<?xml version="1.0" encoding="utf-8" standalone="no"?>
<?taxonomy-version 1.0.0.0?>
<?taxonomy-date 2024-04-29?>
<!--This is a generated XML file-->
<link:linkbase xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xml="http://www.w3.org/XML/1998/namespace">
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel" />
  <link:labelLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:label="loc_ifrs-full_IncomeTaxExpenseContinuingOperations" />
    <link:label xlink:type="resource" xlink:label="label_ifrs-full_IncomeTaxExpenseContinuingOperations" xml:lang="pt" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Despesas (rendimentos) por impostos</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:to="label_ifrs-full_IncomeTaxExpenseContinuingOperations" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_ServicesExpense" xlink:label="loc_ifrs-full_ServicesExpense" />
    <link:label xlink:type="resource" xlink:label="label_ifrs-full_ServicesExpense" xml:lang="pt" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Despesas de serviços</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ServicesExpense" xlink:to="label_ifrs-full_ServicesExpense" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables" xlink:label="loc_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables" />
    <link:label xlink:type="resource" xlink:label="label_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables" xml:lang="pt" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Perda por imparidade (reversão de perdas por imparidade) reconhecida nos resultados, contas a receber comerciais</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables" xlink:to="label_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:label="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" />
    <link:label xlink:type="resource" xlink:label="label_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Aumento (diminuição) de caixa e equivalentes de caixa antes do efeito das variações das taxas de câmbio</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:to="label_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities" />
    <link:label xlink:type="resource" xlink:label="label_ifrs-full_CashFlowsFromUsedInOperatingActivities" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Fluxos de caixa de (utilizados em) atividades de exploração</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:to="label_ifrs-full_CashFlowsFromUsedInOperatingActivities" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:label="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" />
    <link:label xlink:type="resource" xlink:label="label_ifrs-full_CashFlowsFromUsedInInvestingActivities" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Fluxos de caixa de (utilizados em) atividades de investimento</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:to="label_ifrs-full_CashFlowsFromUsedInInvestingActivities" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities" />
    <link:label xlink:type="resource" xlink:label="label_ifrs-full_CashFlowsFromUsedInFinancingActivities" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Fluxos de caixa de (utilizados em) atividades de financiamento</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:to="label_ifrs-full_CashFlowsFromUsedInFinancingActivities" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_PaymentsToSuppliersForGoodsAndServicesAndToAndOnBehalfOfEmployees" xlink:label="loc_ifrs-full_PaymentsToSuppliersForGoodsAndServicesAndToAndOnBehalfOfEmployees" />
    <link:label xlink:type="resource" xlink:label="label_ifrs-full_PaymentsToSuppliersForGoodsAndServicesAndToAndOnBehalfOfEmployees" xml:lang="pt" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Pagamentos a fornecedores de bens e prestadores de serviços para os empregados e em nome destes</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PaymentsToSuppliersForGoodsAndServicesAndToAndOnBehalfOfEmployees" xlink:to="label_ifrs-full_PaymentsToSuppliersForGoodsAndServicesAndToAndOnBehalfOfEmployees" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CashFlowsFromUsedInOperations" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperations" />
    <link:label xlink:type="resource" xlink:label="label_ifrs-full_CashFlowsFromUsedInOperations" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Fluxos de caixa de (utilizados em) unidades operacionais</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperations" xlink:to="label_ifrs-full_CashFlowsFromUsedInOperations" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" xlink:label="loc_ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" />
    <link:label xlink:type="resource" xlink:label="label_ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" xml:lang="pt" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Impostos sobre o rendimento pagos (reembolso), classificados como atividades de exploração</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" xlink:to="label_ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_InflowsOfCashFromInvestingActivities" xlink:label="loc_ifrs-full_InflowsOfCashFromInvestingActivities" />
    <link:label xlink:type="resource" xlink:label="label_ifrs-full_InflowsOfCashFromInvestingActivities" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Entradas de caixa das atividades de investimento</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InflowsOfCashFromInvestingActivities" xlink:to="label_ifrs-full_InflowsOfCashFromInvestingActivities" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:label="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" />
    <link:label xlink:type="resource" xlink:label="label_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xml:lang="pt" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Compra de ativos fixos tangíveis, classificados como atividades de investimento</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:to="label_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:label="loc_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" />
    <link:label xlink:type="resource" xlink:label="label_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xml:lang="pt" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Compra de ativos intangíveis, classificados como atividades de investimento</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:to="label_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:label="loc_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" />
    <link:label xlink:type="resource" xlink:label="label_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xml:lang="pt" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Reembolsos de empréstimos, classificados como atividades de financiamento</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:to="label_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_DividendsPaidClassifiedAsFinancingActivities" xlink:label="loc_ifrs-full_DividendsPaidClassifiedAsFinancingActivities" />
    <link:label xlink:type="resource" xlink:label="label_ifrs-full_DividendsPaidClassifiedAsFinancingActivities" xml:lang="pt" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Dividendos pagos, classificados como atividades de financiamento</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DividendsPaidClassifiedAsFinancingActivities" xlink:to="label_ifrs-full_DividendsPaidClassifiedAsFinancingActivities" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:label="loc_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" />
    <link:label xlink:type="resource" xlink:label="label_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xml:lang="pt" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Pagamentos dos passivos por locação, classificados como atividades de financiamento</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:to="label_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_InterestPaidClassifiedAsFinancingActivities" xlink:label="loc_ifrs-full_InterestPaidClassifiedAsFinancingActivities" />
    <link:label xlink:type="resource" xlink:label="label_ifrs-full_InterestPaidClassifiedAsFinancingActivities" xml:lang="pt" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Juros pagos, classificados como atividades de financiamento</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestPaidClassifiedAsFinancingActivities" xlink:to="label_ifrs-full_InterestPaidClassifiedAsFinancingActivities" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_ReductionOfIssuedCapital" xlink:label="loc_ifrs-full_ReductionOfIssuedCapital" />
    <link:label xlink:type="resource" xlink:label="label_ifrs-full_ReductionOfIssuedCapital" xml:lang="pt" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Redução do capital subscrito</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReductionOfIssuedCapital" xlink:to="label_ifrs-full_ReductionOfIssuedCapital" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_IncreaseDecreaseThroughTransactionsWithOwners" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughTransactionsWithOwners" />
    <link:label xlink:type="resource" xlink:label="label_ifrs-full_IncreaseDecreaseThroughTransactionsWithOwners" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Aumento (diminuição) através de transações com proprietários, capital próprio</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughTransactionsWithOwners" xlink:to="label_ifrs-full_IncreaseDecreaseThroughTransactionsWithOwners" />
    <link:loc xlink:type="locator" xlink:href="005515-2023-12-31.xsd#novabase_AssetsFromDiscontinuedOperations" xlink:label="loc_novabase_AssetsFromDiscontinuedOperations" />
    <link:label xlink:type="resource" xlink:label="label_novabase_AssetsFromDiscontinuedOperations" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/label">Ativos das operações descontinuadas</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_AssetsFromDiscontinuedOperations" xlink:to="label_novabase_AssetsFromDiscontinuedOperations" />
    <link:loc xlink:type="locator" xlink:href="005515-2023-12-31.xsd#novabase_PropertyPlantAndEquipmentIncludingRightOfUseAssets" xlink:label="loc_novabase_PropertyPlantAndEquipmentIncludingRightOfUseAssets" />
    <link:label xlink:type="resource" xlink:label="label_novabase_PropertyPlantAndEquipmentIncludingRightOfUseAssets" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/label">Ativos fixos tangíveis incluindo ativos sob direito de uso</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_PropertyPlantAndEquipmentIncludingRightOfUseAssets" xlink:to="label_novabase_PropertyPlantAndEquipmentIncludingRightOfUseAssets" />
    <link:loc xlink:type="locator" xlink:href="005515-2023-12-31.xsd#novabase_EquityAttributableToOwnersOfParentAbstract" xlink:label="loc_novabase_EquityAttributableToOwnersOfParentAbstract" />
    <link:label xlink:type="resource" xlink:label="label_novabase_EquityAttributableToOwnersOfParentAbstract" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/label">Equity attributable to owners of parent [abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_EquityAttributableToOwnersOfParentAbstract" xlink:to="label_novabase_EquityAttributableToOwnersOfParentAbstract" />
    <link:loc xlink:type="locator" xlink:href="005515-2023-12-31.xsd#novabase_LiabilitiesFromDiscontinuedOperations" xlink:label="loc_novabase_LiabilitiesFromDiscontinuedOperations" />
    <link:label xlink:type="resource" xlink:label="label_novabase_LiabilitiesFromDiscontinuedOperations" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/label">Passivos das operações descontinuadas</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_LiabilitiesFromDiscontinuedOperations" xlink:to="label_novabase_LiabilitiesFromDiscontinuedOperations" />
    <link:loc xlink:type="locator" xlink:href="005515-2023-12-31.xsd#novabase_ReservesAndRetainedEarnings" xlink:label="loc_novabase_ReservesAndRetainedEarnings" />
    <link:label xlink:type="resource" xlink:label="label_novabase_ReservesAndRetainedEarnings" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/label">Reservas e resultados acumulados</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_ReservesAndRetainedEarnings" xlink:to="label_novabase_ReservesAndRetainedEarnings" />
    <link:loc xlink:type="locator" xlink:href="005515-2023-12-31.xsd#novabase_ProfitLossFromContinuingOperationsAbstract" xlink:label="loc_novabase_ProfitLossFromContinuingOperationsAbstract" />
    <link:label xlink:type="resource" xlink:label="label_novabase_ProfitLossFromContinuingOperationsAbstract" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/label">Profit (loss) from continuing operations [abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_ProfitLossFromContinuingOperationsAbstract" xlink:to="label_novabase_ProfitLossFromContinuingOperationsAbstract" />
    <link:loc xlink:type="locator" xlink:href="005515-2023-12-31.xsd#novabase_ProfitLossBeforeTaxAbstract" xlink:label="loc_novabase_ProfitLossBeforeTaxAbstract" />
    <link:label xlink:type="resource" xlink:label="label_novabase_ProfitLossBeforeTaxAbstract" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/label">Profit (loss) before tax [abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_ProfitLossBeforeTaxAbstract" xlink:to="label_novabase_ProfitLossBeforeTaxAbstract" />
    <link:loc xlink:type="locator" xlink:href="005515-2023-12-31.xsd#novabase_ProfitLossFromOperatingActivitiesAbstract" xlink:label="loc_novabase_ProfitLossFromOperatingActivitiesAbstract" />
    <link:label xlink:type="resource" xlink:label="label_novabase_ProfitLossFromOperatingActivitiesAbstract" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/label">Profit (loss) from operating activities [abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_ProfitLossFromOperatingActivitiesAbstract" xlink:to="label_novabase_ProfitLossFromOperatingActivitiesAbstract" />
    <link:loc xlink:type="locator" xlink:href="005515-2023-12-31.xsd#novabase_CashFlowsFromUsedInOperationsAbstract" xlink:label="loc_novabase_CashFlowsFromUsedInOperationsAbstract" />
    <link:label xlink:type="resource" xlink:label="label_novabase_CashFlowsFromUsedInOperationsAbstract" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/label">Cash flows from (used in) operations [abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_CashFlowsFromUsedInOperationsAbstract" xlink:to="label_novabase_CashFlowsFromUsedInOperationsAbstract" />
    <link:loc xlink:type="locator" xlink:href="005515-2023-12-31.xsd#novabase_IncomeTaxesReceivedPaidAndOtherOperatingReceiptsPaymentsAbstract" xlink:label="loc_novabase_IncomeTaxesReceivedPaidAndOtherOperatingReceiptsPaymentsAbstract" />
    <link:label xlink:type="resource" xlink:label="label_novabase_IncomeTaxesReceivedPaidAndOtherOperatingReceiptsPaymentsAbstract" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/label">Income taxes received / (paid) and other operating receipts/ (payments) [abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_IncomeTaxesReceivedPaidAndOtherOperatingReceiptsPaymentsAbstract" xlink:to="label_novabase_IncomeTaxesReceivedPaidAndOtherOperatingReceiptsPaymentsAbstract" />
    <link:loc xlink:type="locator" xlink:href="005515-2023-12-31.xsd#novabase_InflowsOfCashFromInvestingActivitiesAbstract" xlink:label="loc_novabase_InflowsOfCashFromInvestingActivitiesAbstract" />
    <link:label xlink:type="resource" xlink:label="label_novabase_InflowsOfCashFromInvestingActivitiesAbstract" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/label">Inflows of cash from investing activities [abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_InflowsOfCashFromInvestingActivitiesAbstract" xlink:to="label_novabase_InflowsOfCashFromInvestingActivitiesAbstract" />
    <link:loc xlink:type="locator" xlink:href="005515-2023-12-31.xsd#novabase_OutflowsOfCashFromInvestingActivitiesAbstract" xlink:label="loc_novabase_OutflowsOfCashFromInvestingActivitiesAbstract" />
    <link:label xlink:type="resource" xlink:label="label_novabase_OutflowsOfCashFromInvestingActivitiesAbstract" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/label">Outflows of cash from investing activities [abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_OutflowsOfCashFromInvestingActivitiesAbstract" xlink:to="label_novabase_OutflowsOfCashFromInvestingActivitiesAbstract" />
    <link:loc xlink:type="locator" xlink:href="005515-2023-12-31.xsd#novabase_InflowsOfCashFromFinancingActivitiesAbstract" xlink:label="loc_novabase_InflowsOfCashFromFinancingActivitiesAbstract" />
    <link:label xlink:type="resource" xlink:label="label_novabase_InflowsOfCashFromFinancingActivitiesAbstract" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/label">Inflows of cash from financing activities [abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_InflowsOfCashFromFinancingActivitiesAbstract" xlink:to="label_novabase_InflowsOfCashFromFinancingActivitiesAbstract" />
    <link:loc xlink:type="locator" xlink:href="005515-2023-12-31.xsd#novabase_OutflowsOfCashFromFinancingActivitiesAbstract" xlink:label="loc_novabase_OutflowsOfCashFromFinancingActivitiesAbstract" />
    <link:label xlink:type="resource" xlink:label="label_novabase_OutflowsOfCashFromFinancingActivitiesAbstract" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/label">Outflows of cash from financing activities [abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_OutflowsOfCashFromFinancingActivitiesAbstract" xlink:to="label_novabase_OutflowsOfCashFromFinancingActivitiesAbstract" />
    <link:loc xlink:type="locator" xlink:href="005515-2023-12-31.xsd#novabase_IncomeTaxesReceivedPaidAndOtherOperatingReceiptsPayments" xlink:label="loc_novabase_IncomeTaxesReceivedPaidAndOtherOperatingReceiptsPayments" />
    <link:label xlink:type="resource" xlink:label="label_novabase_IncomeTaxesReceivedPaidAndOtherOperatingReceiptsPayments" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/label">Recebimentos / (pagamentos) de imposto sobre o rendimento e outros recebimentos / (pagamentos) operacionais</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_IncomeTaxesReceivedPaidAndOtherOperatingReceiptsPayments" xlink:to="label_novabase_IncomeTaxesReceivedPaidAndOtherOperatingReceiptsPayments" />
    <link:label xlink:type="resource" xlink:label="label_novabase_IncomeTaxesReceivedPaidAndOtherOperatingReceiptsPayments2" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Recebimentos / (pagamentos) de imposto sobre o rendimento e outros recebimentos / (pagamentos) operacionais</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_IncomeTaxesReceivedPaidAndOtherOperatingReceiptsPayments" xlink:to="label_novabase_IncomeTaxesReceivedPaidAndOtherOperatingReceiptsPayments2" />
    <link:loc xlink:type="locator" xlink:href="005515-2023-12-31.xsd#novabase_SaleOfSubsidiariesNetOfCashDisposedOf" xlink:label="loc_novabase_SaleOfSubsidiariesNetOfCashDisposedOf" />
    <link:label xlink:type="resource" xlink:label="label_novabase_SaleOfSubsidiariesNetOfCashDisposedOf" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/label">Venda de subsidiárias, líquido do cash alienado</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_SaleOfSubsidiariesNetOfCashDisposedOf" xlink:to="label_novabase_SaleOfSubsidiariesNetOfCashDisposedOf" />
    <link:loc xlink:type="locator" xlink:href="005515-2023-12-31.xsd#novabase_SaleOfAssociatesAndOtherParticipatedCompanies" xlink:label="loc_novabase_SaleOfAssociatesAndOtherParticipatedCompanies" />
    <link:label xlink:type="resource" xlink:label="label_novabase_SaleOfAssociatesAndOtherParticipatedCompanies" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/label">Venda de associadas e outras participadas</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_SaleOfAssociatesAndOtherParticipatedCompanies" xlink:to="label_novabase_SaleOfAssociatesAndOtherParticipatedCompanies" />
    <link:loc xlink:type="locator" xlink:href="005515-2023-12-31.xsd#novabase_AcquisitionOfSubsidiariesNetOfCashAcquired" xlink:label="loc_novabase_AcquisitionOfSubsidiariesNetOfCashAcquired" />
    <link:label xlink:type="resource" xlink:label="label_novabase_AcquisitionOfSubsidiariesNetOfCashAcquired" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/label">Aquisição de subsidiárias, líquido do cash adquirido</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_AcquisitionOfSubsidiariesNetOfCashAcquired" xlink:to="label_novabase_AcquisitionOfSubsidiariesNetOfCashAcquired" />
    <link:label xlink:type="resource" xlink:label="label_novabase_AcquisitionOfSubsidiariesNetOfCashAcquired2" xml:lang="pt" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Aquisição de subsidiárias, líquido do cash adquirido</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_AcquisitionOfSubsidiariesNetOfCashAcquired" xlink:to="label_novabase_AcquisitionOfSubsidiariesNetOfCashAcquired2" />
    <link:loc xlink:type="locator" xlink:href="005515-2023-12-31.xsd#novabase_PaymentsFromChangesInOwnershipInterestsInSubsidiariesClassifiedAsInvestingActivities" xlink:label="loc_novabase_PaymentsFromChangesInOwnershipInterestsInSubsidiariesClassifiedAsInvestingActivities" />
    <link:label xlink:type="resource" xlink:label="label_novabase_PaymentsFromChangesInOwnershipInterestsInSubsidiariesClassifiedAsInvestingActivities" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/label">Pagamentos relativos a alterações na participação de subsidiárias, classificados como atividades de investimento</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_PaymentsFromChangesInOwnershipInterestsInSubsidiariesClassifiedAsInvestingActivities" xlink:to="label_novabase_PaymentsFromChangesInOwnershipInterestsInSubsidiariesClassifiedAsInvestingActivities" />
    <link:label xlink:type="resource" xlink:label="label_novabase_PaymentsFromChangesInOwnershipInterestsInSubsidiariesClassifiedAsInvestingActivities2" xml:lang="pt" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Pagamentos relativos a alterações na participação de subsidiárias, classificados como atividades de investimento</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_PaymentsFromChangesInOwnershipInterestsInSubsidiariesClassifiedAsInvestingActivities" xlink:to="label_novabase_PaymentsFromChangesInOwnershipInterestsInSubsidiariesClassifiedAsInvestingActivities2" />
    <link:loc xlink:type="locator" xlink:href="005515-2023-12-31.xsd#novabase_AcquisitionOfAssociatesAndOtherParticipatedCompanies" xlink:label="loc_novabase_AcquisitionOfAssociatesAndOtherParticipatedCompanies" />
    <link:label xlink:type="resource" xlink:label="label_novabase_AcquisitionOfAssociatesAndOtherParticipatedCompanies" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/label">Aquisição de associadas e outras participadas</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_AcquisitionOfAssociatesAndOtherParticipatedCompanies" xlink:to="label_novabase_AcquisitionOfAssociatesAndOtherParticipatedCompanies" />
    <link:label xlink:type="resource" xlink:label="label_novabase_AcquisitionOfAssociatesAndOtherParticipatedCompanies2" xml:lang="pt" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Aquisição de associadas e outras participadas</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_AcquisitionOfAssociatesAndOtherParticipatedCompanies" xlink:to="label_novabase_AcquisitionOfAssociatesAndOtherParticipatedCompanies2" />
    <link:loc xlink:type="locator" xlink:href="005515-2023-12-31.xsd#novabase_InflowsOfCashFromFinancingActivities" xlink:label="loc_novabase_InflowsOfCashFromFinancingActivities" />
    <link:label xlink:type="resource" xlink:label="label_novabase_InflowsOfCashFromFinancingActivities" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/label">Entradas de caixa das atividades de financiamento</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_InflowsOfCashFromFinancingActivities" xlink:to="label_novabase_InflowsOfCashFromFinancingActivities" />
    <link:label xlink:type="resource" xlink:label="label_novabase_InflowsOfCashFromFinancingActivities2" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Entradas de caixa das atividades de financiamento</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_InflowsOfCashFromFinancingActivities" xlink:to="label_novabase_InflowsOfCashFromFinancingActivities2" />
    <link:loc xlink:type="locator" xlink:href="005515-2023-12-31.xsd#novabase_OutflowsOfCashFromFinancingActivities" xlink:label="loc_novabase_OutflowsOfCashFromFinancingActivities" />
    <link:label xlink:type="resource" xlink:label="label_novabase_OutflowsOfCashFromFinancingActivities" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/label">Saídas de caixa das actividades de financiamento</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_OutflowsOfCashFromFinancingActivities" xlink:to="label_novabase_OutflowsOfCashFromFinancingActivities" />
    <link:loc xlink:type="locator" xlink:href="005515-2023-12-31.xsd#novabase_ReservesAndRetainedEarningsMember" xlink:label="loc_novabase_ReservesAndRetainedEarningsMember" />
    <link:label xlink:type="resource" xlink:label="label_novabase_ReservesAndRetainedEarningsMember" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/label">Reservas e resultados acumulados [member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_ReservesAndRetainedEarningsMember" xlink:to="label_novabase_ReservesAndRetainedEarningsMember" />
    <link:loc xlink:type="locator" xlink:href="005515-2023-12-31.xsd#novabase_VariacaoDoPerimetroDeConsolidacao" xlink:label="loc_novabase_VariacaoDoPerimetroDeConsolidacao" />
    <link:label xlink:type="resource" xlink:label="label_novabase_VariacaoDoPerimetroDeConsolidacao" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/label">Variação do perímetro de consolidação</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_VariacaoDoPerimetroDeConsolidacao" xlink:to="label_novabase_VariacaoDoPerimetroDeConsolidacao" />
    <link:loc xlink:type="locator" xlink:href="005515-2023-12-31.xsd#novabase_IncreaseDecreaseThroughTransactionsWithOwnersEquityAbstract" xlink:label="loc_novabase_IncreaseDecreaseThroughTransactionsWithOwnersEquityAbstract" />
    <link:label xlink:type="resource" xlink:label="label_novabase_IncreaseDecreaseThroughTransactionsWithOwnersEquityAbstract" xml:lang="pt" xlink:role="http://www.xbrl.org/2003/role/label">Increase (decrease) through transactions with owners, equity [abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_novabase_IncreaseDecreaseThroughTransactionsWithOwnersEquityAbstract" xlink:to="label_novabase_IncreaseDecreaseThroughTransactionsWithOwnersEquityAbstract" />
  </link:labelLink>
</link:linkbase>