Orano - Annual Activity Report 2025 186 4 SUSTAINABILITY STATEMENT Environmental information 4.2.5.1 IRO related to resource use and the circular economy For its materiality analysis and the identification of Impacts, Risks and Opportunities (IRO), Orano relied on its existing mapping (risks, vigilance), the knowledge of its experts and existing studies (impact studies, specific studies, etc.) as well as interviews with 150 stakeholders, as described in Section 4.1.5.2 Double materiality analysis methodology. These amounts include the costs related to the long-term management of radioactive waste, the volumes of which are indicated in the table below and broken down between waste already produced and future waste relating to the decommissioning of INBs. VOLUME OF WASTE PROVISIONED IN END-OF-LIFECYCLE PROVISIONS AT DECEMBER 31, 2024 [E2-6] Type of waste Units Volume Total Of which volume of waste already produced Of which volume of future waste High-level waste (HLW) m3 273 265 8 Medium Activity – Long Lived m3 10,177 8,399 1,778 Low Activity – Long Lived m3 6,250 6,250 0 Low and Medium Activity – Short-lived m3 71,453 17,359 54,094 Very Low Activity metric tons 332,699 4,807 327,892 The amount of provisions at December 31, 2025, falling within and outside the scope of the law is 8,915 million euros in present value (Note 13 to the consolidated financial statements). The waste inventory at December 31, 2025, will be communicated at the end of the first half of 2026. To ensure the proper management of its end-of-lifecycle obligations, Orano has set up two committees: ● the end-of-lifecycle obligations monitoring committee (CSOFC) at the level of the Board of directors (specialized committee); and ● the decommissioning operations monitoring committee (COSOD) reporting to the executive committee. Provisions for mining site remediation These provisions correspond to foreseeable expenses stemming from the cost of rehabilitating mining sites borne by the group. The provision is constituted as and when the site is operated, in accordance with the principle of progressive deterioration. The provision for mining site reclamation is equal to the proportion of metric tonnage processed since the commissioning of the site, compared to the total metric tonnage of the site (quantities already processed and yet to be processed). At December 31, 2025, these provisions amounted to 311 million euros. 4.2.5 An industrial actor committed to the preservation of resources, the circular economy and waste optimization [E5] A production process respecting the principles of the circular economy aims to extend the life cycle of products, in order to reduce the use of raw materials and the production of waste. The objective is to maximize and preserve the value of resources by creating a system that promotes: sustainability, reusability, repairability, disassembly, remanufacturing, reconditioning, recycling, recirculation through the biological cycle or optimization of the use of the product or materials through other circular economic models. Orano has made the preservation of resources at the core of its corporate purpose and intends to contribute to the circular economy through its activities and actions.
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