ORANO // Annual Activity Report 2024

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SUSTAINABILITY STATEMENT Societal and environmental challenges at the heart of the strategy

4.1 Societal and environmental challenges at the heart of the strategy

4.1.1 General information on the sustainability statement

4.1.1.1 General basis

Consolidated sustainability statement at the Orano level

the paragraph “Publication of information relating to special circumstances”. In this context, based on market practices and recommendations as well as a better knowledge of these new regulatory and normative provisions, the group may be required to review certain reporting and communication practices in future versions of its sustainability report. These changes, if they were to occur, will be explained and justi fi ed in full transparency in the next sustainability statements. Orano is part of a continuous improvement approach in this reporting and communication exercise. The estimates, uncertainties and deviations from the requirements of the standard are set out below and detailed for each indicator table in a “ Methodological precision ” section. Time consistency with the fi nancial statements The sustainability statement is prepared over the same time horizon as the fi nancial statements, (from January 1 to December 31, 2024), except for the group-speci fi c indicators related to the radiation protection of employees and external personnel delayed by six months (see Section 4.3.1.2). The ethics incident indicators in Section 4.3.1.6 are consolidated from January to November. The items for December 2024 will be recognized in the 2025 fi nancial year. Scope of consolidation In accordance with the fi nancial statements described in Note 2 to the consolidated fi nancial statements, the group’s scope of consolidation for the sustainability statement is composed of: ● fi nancially integrated subsidiaries over which the group exercises operational control (Orano Mining, Orano Recycling, Orano Chimie-Enrichissement, Orano Nuclear Packages and Services, Orano Dismantling and Services, Orano Projets, etc. ); ● a joint operation over which the group exercises operational control (McClean); ● several entities in joint operations over which the group does not exercise operational control (McArthur River, Cigar Lake and Key Lake operated by Cameco); ● subsidiaries accounted for using the equity method over which the group has no operational control.

The Orano sustainability statement was prepared as part of the fi rst application of legal and regulatory requirements following the transposition of the European directive on the publication of corporate sustainability information (“CSRD Directive”) and in accordance with the ESRS issued by the European Financial Reporting Advisory Group (EFRAG) and adopted by the European Union for the reporting period from January 1, 2024 to December 31, 2024. The sustainability statement, consolidated at group level, was prepared under the responsibility of the Board of Directors. It was approved and authorized for disclosure on February 18, 2025. The sustainability information was prepared in the context of the fi rst-time application of legal and regulatory requirements resulting from the transposition of the CSRD Directive. This fi rst year of application of the directive and the double materiality analyses that it requires are characterized by uncertainties regarding the interpretation of the texts, the absence of established practices or comparative data as well as by dif fi culties in collecting data in particular within the value chain: ● the absence of established practices in particular to assess the Impacts, Risks and Opportunities on the value chain (see Section 4.1.5.2 Double materiality analysis methodology ); ● changes are made to the de fi nitions and rules for consolidating sustainability information between the practices applied in previous years and this sustainability statement, as speci fi ed in Section 4.1.1.1 General basis ; in particular concerning joint operations over which the group has no operational control; ● some information required by the ESRS on material sub topics is not available. They are listed in the “Partial or missing information required by ESRS” table below; ● for the indicators relating to radiation protection, there is a time lag insofar as the data for the whole of 2024 are not yet available (see the details provided in the paragraph “Time consistency with the fi nancial statements”); ● some data may be estimated at the end of the year ended December 31, 2024. These methodological limitations, in particular the use of estimates to calculate scope 3 greenhouse gas (GHG) emissions, radioactive waste, etc . are speci fi ed in

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Orano - Annual Activity Report 2024