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<linkbase 
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>
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  <roleRef roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel"/>
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  <roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel"/>
  <labelLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended">
  <loc
    xlink:type="locator"
    xlink:href="969500BVOHVZUUFWDT54-2023-12-31.xsd#gtt_AmortissementsProvisionsDepreciations"
    xlink:label="gtt_AmortissementsProvisionsDepreciations"
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  <loc
    xlink:type="locator"
    xlink:href="969500BVOHVZUUFWDT54-2023-12-31.xsd#gtt_AutresProduitsEtChargesOperationnels"
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  <loc
    xlink:type="locator"
    xlink:href="969500BVOHVZUUFWDT54-2023-12-31.xsd#gtt_DIsclosureOfOtherOperatingIncomeAndExpensesExplanatory"
    xlink:label="gtt_DIsclosureOfOtherOperatingIncomeAndExpensesExplanatory"
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  <loc
    xlink:type="locator"
    xlink:href="969500BVOHVZUUFWDT54-2023-12-31.xsd#gtt_Reserves"
    xlink:label="gtt_Reserves"
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  <loc
    xlink:type="locator"
    xlink:href="969500BVOHVZUUFWDT54-2023-12-31.xsd#gtt_OtherOperatingIncome"
    xlink:label="gtt_OtherOperatingIncome"
  />
  <loc
    xlink:type="locator"
    xlink:href="969500BVOHVZUUFWDT54-2023-12-31.xsd#gtt_ChangesInCashAndCashEquivalentsAbstract"
    xlink:label="gtt_ChangesInCashAndCashEquivalentsAbstract"
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  <loc
    xlink:type="locator"
    xlink:href="969500BVOHVZUUFWDT54-2023-12-31.xsd#gtt_DIsclosureOfOtherNoncurrentIncomeAndExpensesExplanatory"
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    xlink:type="locator"
    xlink:href="969500BVOHVZUUFWDT54-2023-12-31.xsd#gtt_ActionsAutoDetenues"
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  <loc
    xlink:type="locator"
    xlink:href="969500BVOHVZUUFWDT54-2023-12-31.xsd#gtt_InteretsRecus"
    xlink:label="gtt_InteretsRecus"
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  <loc
    xlink:type="locator"
    xlink:href="969500BVOHVZUUFWDT54-2023-12-31.xsd#gtt_TangibleAssetsIncludingRightsOfUse"
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    xlink:type="locator"
    xlink:href="969500BVOHVZUUFWDT54-2023-12-31.xsd#gtt_DotationsNettesAuxAmortissementsEtProvisions"
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  <loc
    xlink:type="locator"
    xlink:href="969500BVOHVZUUFWDT54-2023-12-31.xsd#gtt_OtherNoncurrentIncomeAndExpenses"
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  <loc
    xlink:type="locator"
    xlink:href="969500BVOHVZUUFWDT54-2023-12-31.xsd#gtt_RecurringOperatingIncome"
    xlink:label="gtt_RecurringOperatingIncome"
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  <labelArc
    xlink:type="arc"
    xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
    xlink:from="gtt_AmortissementsProvisionsDepreciations"
    xlink:to="gtt_AmortissementsProvisionsDepreciations_verboseLabel_fr"
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  <label
    xlink:type="resource"
    xlink:label="gtt_AmortissementsProvisionsDepreciations_verboseLabel_fr"
    xlink:role="http://www.xbrl.org/2003/role/verboseLabel"
    xml:lang="fr"
  >Dotations (Reprises) amortissements, provisions, dépréciations</label>
  <labelArc
    xlink:type="arc"
    xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
    xlink:from="gtt_AutresProduitsEtChargesOperationnels"
    xlink:to="gtt_AutresProduitsEtChargesOperationnels_label_fr"
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  <label
    xlink:type="resource"
    xlink:label="gtt_AutresProduitsEtChargesOperationnels_label_fr"
    xlink:role="http://www.xbrl.org/2003/role/label"
    xml:lang="fr"
  >Autres produits et charges opérationnels</label>
  <labelArc
    xlink:type="arc"
    xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
    xlink:from="gtt_DIsclosureOfOtherOperatingIncomeAndExpensesExplanatory"
    xlink:to="gtt_DIsclosureOfOtherOperatingIncomeAndExpensesExplanatory_label_fr"
  />
  <label
    xlink:type="resource"
    xlink:label="gtt_DIsclosureOfOtherOperatingIncomeAndExpensesExplanatory_label_fr"
    xlink:role="http://www.xbrl.org/2003/role/label"
    xml:lang="fr"
  >Informations relatives aux autres produits et charges opérationnels courants</label>
  <labelArc
    xlink:type="arc"
    xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
    xlink:from="gtt_Reserves"
    xlink:to="gtt_Reserves_label_fr"
  />
  <label
    xlink:type="resource"
    xlink:label="gtt_Reserves_label_fr"
    xlink:role="http://www.xbrl.org/2003/role/label"
    xml:lang="fr"
  >Réserves</label>
  <labelArc
    xlink:type="arc"
    xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
    xlink:from="gtt_Reserves"
    xlink:to="gtt_Reserves_verboseLabel_fr"
  />
  <label
    xlink:type="resource"
    xlink:label="gtt_Reserves_verboseLabel_fr"
    xlink:role="http://www.xbrl.org/2003/role/verboseLabel"
    xml:lang="fr"
  >Réserves</label>
  <labelArc
    xlink:type="arc"
    xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
    xlink:from="gtt_AutresProduitsEtChargesOperationnels"
    xlink:to="gtt_AutresProduitsEtChargesOperationnels_verboseLabel_fr"
  />
  <label
    xlink:type="resource"
    xlink:label="gtt_AutresProduitsEtChargesOperationnels_verboseLabel_fr"
    xlink:role="http://www.xbrl.org/2003/role/verboseLabel"
    xml:lang="fr"
  >Autres produits et charges opérationnels</label>
  <labelArc
    xlink:type="arc"
    xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
    xlink:from="gtt_OtherOperatingIncome"
    xlink:to="gtt_OtherOperatingIncome_label_fr"
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  <label
    xlink:type="resource"
    xlink:label="gtt_OtherOperatingIncome_label_fr"
    xlink:role="http://www.xbrl.org/2003/role/label"
    xml:lang="fr"
  >Autres produits d&apos;exploitation</label>
  <labelArc
    xlink:type="arc"
    xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
    xlink:from="gtt_ChangesInCashAndCashEquivalentsAbstract"
    xlink:to="gtt_ChangesInCashAndCashEquivalentsAbstract_label_fr"
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  <label
    xlink:type="resource"
    xlink:label="gtt_ChangesInCashAndCashEquivalentsAbstract_label_fr"
    xlink:role="http://www.xbrl.org/2003/role/label"
    xml:lang="fr"
  >Variation de trésorerie [abstract]</label>
  <labelArc
    xlink:type="arc"
    xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
    xlink:from="gtt_DIsclosureOfOtherNoncurrentIncomeAndExpensesExplanatory"
    xlink:to="gtt_DIsclosureOfOtherNoncurrentIncomeAndExpensesExplanatory_label_fr"
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  <label
    xlink:type="resource"
    xlink:label="gtt_DIsclosureOfOtherNoncurrentIncomeAndExpensesExplanatory_label_fr"
    xlink:role="http://www.xbrl.org/2003/role/label"
    xml:lang="fr"
  >Informations relatives aux autres produits et charges opérationnels non courants</label>
  <labelArc
    xlink:type="arc"
    xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
    xlink:from="gtt_ActionsAutoDetenues"
    xlink:to="gtt_ActionsAutoDetenues_label_fr"
  />
  <label
    xlink:type="resource"
    xlink:label="gtt_ActionsAutoDetenues_label_fr"
    xlink:role="http://www.xbrl.org/2003/role/label"
    xml:lang="fr"
  >Actions auto détenues</label>
  <labelArc
    xlink:type="arc"
    xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
    xlink:from="gtt_InteretsRecus"
    xlink:to="gtt_InteretsRecus_label_fr"
  />
  <label
    xlink:type="resource"
    xlink:label="gtt_InteretsRecus_label_fr"
    xlink:role="http://www.xbrl.org/2003/role/label"
    xml:lang="fr"
  >Intérêts recus</label>
  <labelArc
    xlink:type="arc"
    xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
    xlink:from="gtt_TangibleAssetsIncludingRightsOfUse"
    xlink:to="gtt_TangibleAssetsIncludingRightsOfUse_label_fr"
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  <label
    xlink:type="resource"
    xlink:label="gtt_TangibleAssetsIncludingRightsOfUse_label_fr"
    xlink:role="http://www.xbrl.org/2003/role/label"
    xml:lang="fr"
  >Actifs corporels, y compris droits d&apos;utilisation</label>
  <labelArc
    xlink:type="arc"
    xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
    xlink:from="gtt_DotationsNettesAuxAmortissementsEtProvisions"
    xlink:to="gtt_DotationsNettesAuxAmortissementsEtProvisions_label_fr"
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  <label
    xlink:type="resource"
    xlink:label="gtt_DotationsNettesAuxAmortissementsEtProvisions_label_fr"
    xlink:role="http://www.xbrl.org/2003/role/label"
    xml:lang="fr"
  >Dotations nettes aux amortissements et provisions</label>
  <labelArc
    xlink:type="arc"
    xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
    xlink:from="gtt_DotationsNettesAuxAmortissementsEtProvisions"
    xlink:to="gtt_DotationsNettesAuxAmortissementsEtProvisions_verboseLabel_fr"
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  <label
    xlink:type="resource"
    xlink:label="gtt_DotationsNettesAuxAmortissementsEtProvisions_verboseLabel_fr"
    xlink:role="http://www.xbrl.org/2003/role/verboseLabel"
    xml:lang="fr"
  >Dotations nettes aux amortissements et provisions</label>
  <labelArc
    xlink:type="arc"
    xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
    xlink:from="gtt_InteretsRecus"
    xlink:to="gtt_InteretsRecus_verboseLabel_fr"
  />
  <label
    xlink:type="resource"
    xlink:label="gtt_InteretsRecus_verboseLabel_fr"
    xlink:role="http://www.xbrl.org/2003/role/verboseLabel"
    xml:lang="fr"
  >Intérêts recus</label>
  <labelArc
    xlink:type="arc"
    xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
    xlink:from="gtt_ActionsAutoDetenues"
    xlink:to="gtt_ActionsAutoDetenues_verboseLabel_fr"
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  <label
    xlink:type="resource"
    xlink:label="gtt_ActionsAutoDetenues_verboseLabel_fr"
    xlink:role="http://www.xbrl.org/2003/role/verboseLabel"
    xml:lang="fr"
  >Actions auto détenues</label>
  <labelArc
    xlink:type="arc"
    xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
    xlink:from="gtt_AmortissementsProvisionsDepreciations"
    xlink:to="gtt_AmortissementsProvisionsDepreciations_label_fr"
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  <label
    xlink:type="resource"
    xlink:label="gtt_AmortissementsProvisionsDepreciations_label_fr"
    xlink:role="http://www.xbrl.org/2003/role/label"
    xml:lang="fr"
  >Dotations (Reprises) amortissements, provisions, dépréciations</label>
  <labelArc
    xlink:type="arc"
    xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
    xlink:from="gtt_OtherNoncurrentIncomeAndExpenses"
    xlink:to="gtt_OtherNoncurrentIncomeAndExpenses_label_fr"
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  <label
    xlink:type="resource"
    xlink:label="gtt_OtherNoncurrentIncomeAndExpenses_label_fr"
    xlink:role="http://www.xbrl.org/2003/role/label"
    xml:lang="fr"
  >Autres produits et charges non courants</label>
  <labelArc
    xlink:type="arc"
    xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
    xlink:from="gtt_RecurringOperatingIncome"
    xlink:to="gtt_RecurringOperatingIncome_label_fr"
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  <label
    xlink:type="resource"
    xlink:label="gtt_RecurringOperatingIncome_label_fr"
    xlink:role="http://www.xbrl.org/2003/role/label"
    xml:lang="fr"
  >Résultat opérationnel courant</label>
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