Annual Activity Report 2025

Orano - Annual Activity Report 2025 115 SUSTAINABILITY STATEMENT 4 Societal and environmental challenges at the heart of the strategy CURRENT OR POTENTIAL IMPACTS RISKS – OPPORTUNITIES POLICIES AND MAIN ACTIONS OBJECTIVES AND RESULTS E2 – POLLUTION Liabilities management and sites endof-life [E2] Potential impact of an accidental spill of radioactive or hazardous substances Financial risk related to environmental incidents, liability management of industrial and mining sites HSE policy, decommissioning strategy and principles for the redevelopment of mining sites ● Anticipate the decommissioning and redevelopment of sites as early as possible and provision of the associated funds ● Master the expertise associated with these transactions and share it with other players ● Avoid creating liabilities through environmental monitoring and accidental spill prevention ● Managing tailings Objective: Complete 2 emblematic remediation operations (deconstruction of the GB1 cooling towers at Orano Tricastin and end of the cleanup of the Parc aux Ajoncs (PAA) at Orano la Hague) ● 80% for the cooling towers, 15% for the gorse park ● 9,226 million euros dedicated to the decommissioning of nuclear facilities and the redevelopment of mining sites Risk related to the estimated costs of decommissioning nuclear facilities E3 – WATER AND MARINE RESOURCES Freshwater [E3] Water requirements for Orano’s activities and its value chain Risk in the event of insufficient water resources at Orano sites or in the Upstream value chain HSE policy and Nature strategy ● The annual assessment of the local water resource footprint of our activities (e.g. water stress via the Aqueduct Water Risk Atlas tool); ● Adopt responsible and efficient consumption: network instrumentation, search for leaks and network renovation, process optimization, rainwater recovery ● Define a water master plan by adopting a watershed approach in collaboration with other stakeholders to anticipate competition on water uses Objective: Deploy 100% of the Nature strategy actions ● 81% progress of actions ● -47% in water consumption vs. 2019 E4 – BIODIVERSITY AND ECOSYSTEMS Land-use change [E4] Risk of additional costs or restrictions related to biodiversity and nature protection HSE policy and Nature strategy ● Regularly assess Orano’s overall footprint and ecological diagnostics and inventories for high-stakes sites ● Preserve the most remarkable areas through the voluntary exclusion of mineral exploration in regions classified as a UNESCO World Heritage Area or in IUCN Category 1a, 1b, and 2 ● Support biodiversity present on operating sites by implementing reasoned management plans for green spaces and developing a landscape-based approach Objective: Deploy 100% of the Nature strategy actions ● 81% progress of actions

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