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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="Equity_periodStartLabel_labelfr" xml:lang="fr">Capitaux propres début de période</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Equity" xlink:to="Equity_periodEndLabel_labelfr" xlink:type="arc" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="EquityAndLiabilities_totalLabel_labelfr" xml:lang="fr">Total Capitaux propres et passifs</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="IncreaseDecreaseInCashAndCashEquivalents_periodEndLabel_labelfr" xml:lang="fr">Augmentation (diminution) nette de la trésorerie et des équivalents de trésorerie à la cloture</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInCashAndCashEquivalents" xlink:to="IncreaseDecreaseInCashAndCashEquivalents_periodEndLabel_labelfr" xlink:type="arc" />
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:to="IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges_netLabel_labelfr" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="IncreaseDecreaseInCashAndCashEquivalents_periodStartLabel_labelfr" xml:lang="fr">Augmentation (diminution) nette de la trésorerie et des équivalents de trésorerie à l'ouverture</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInCashAndCashEquivalents" xlink:to="IncreaseDecreaseInCashAndCashEquivalents_periodStartLabel_labelfr" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:label="IncreaseDecreaseInCashAndCashEquivalents_netLabel_labelfr" xml:lang="fr">Augmentation (diminution) nette de la trésorerie et des équivalents de trésorerie</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInCashAndCashEquivalents" xlink:to="IncreaseDecreaseInCashAndCashEquivalents_netLabel_labelfr" xlink:type="arc" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ImpactIdSurEcartConversionBrevetOpi_label_labelfr" xml:lang="fr">Impact ID sur Ecart conversion brevet OPI</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ResultatConsolide_label_labelfr" xml:lang="fr">Résultat consolidé</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ResultatOperationnelCourant_label_labelfr" xml:lang="fr">RESULTAT OPERATIONNEL COURANT</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ResultatOperationnelCourant" xlink:to="ResultatOperationnelCourant_label_labelfr" xlink:type="arc" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="VariationDeCapitalBpsce_label_labelfr" xml:lang="fr">Variations de capital - Bspce</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="VariationDeCapitalBpsce" xlink:to="VariationDeCapitalBpsce_label_labelfr" xlink:type="arc" />
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    <link:loc xlink:type="locator" xlink:label="VariationDesDettesFiscalesEtSociales" xlink:href="ose-2021-12-31.xsd#ose_VariationDesDettesFiscalesEtSociales" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="VariationDesDettesFiscalesEtSociales_label_labelfr" xml:lang="fr">Variation des dettes fiscales et sociales</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="VariationDesDettesFiscalesEtSociales" xlink:to="VariationDesDettesFiscalesEtSociales_label_labelfr" xlink:type="arc" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ImpactRetrospectifChangementDeMethodeComptableNetDImpot_label_labelfr" xml:lang="fr">Impact rétrospectif - changement de méthode comptable (net d'impôt)</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="VariationDeCapital_label_labelfr" xml:lang="fr">Variations de capital</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="SouscriptionDeBsa_label_labelfr" xml:lang="fr">Souscription de BSA</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="VariationDeCapitalBsa_label_labelfr" xml:lang="fr">Variations de capital - Bsa</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="VariationDeCapitalBsa" xlink:to="VariationDeCapitalBsa_label_labelfr" xlink:type="arc" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="VariationDesImmobilisationsFinancieres_label_labelfr" xml:lang="fr">Variation des immobilisations financières</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="VariationDesImmobilisationsFinancieres" xlink:to="VariationDesImmobilisationsFinancieres_label_labelfr" xlink:type="arc" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="EliminationDuCoutDeLEndettementFinancierNet_label_labelfr" xml:lang="fr">Elimination du coût de l'endettement financier net</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EliminationDuCoutDeLEndettementFinancierNet" xlink:to="EliminationDuCoutDeLEndettementFinancierNet_label_labelfr" xlink:type="arc" />
    <link:loc xlink:type="locator" xlink:label="ReservesEtReportANouveau" xlink:href="ose-2021-12-31.xsd#ose_ReservesEtReportANouveau" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ReservesEtReportANouveau_label_labelfr" xml:lang="fr">Réserves et report à nouveau</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="VariationDeCapitalAga_label_labelfr" xml:lang="fr">Variations de capital - Aga</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="VariationDeCapitalAga" xlink:to="VariationDeCapitalAga_label_labelfr" xlink:type="arc" />
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