Annual Activity Report 2025

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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

Orano has placed sustainability at the core of its corporate purpose and value creation model. The following sustainability report demonstrates the group’s commitment to transparency regarding its material topics, policies and actions, objectives, and results to all of its stakeholders. Pending the upcoming digital marking, and in order to facilitate the reading and legibility of information, Orano has chosen to indicate references to information required by the standard in square brackets. For a more concise overview of the various topics covered in this sustainability report, summary tables have been created to make the information more accessible beyond the requirements of the standard.

SUMMARY OF THE IMPACTS, RISKS AND OPPORTUNITIES OF THE SUSTAINABILITY STATEMENT

CURRENT OR POTENTIAL IMPACTS

RISKS – OPPORTUNITIES

POLICIES AND MAIN ACTIONS

OBJECTIVES AND RESULTS

ENVIRONMENT E1 – CLIMATE CHANGE

Objective: Maintain -25% on market-based Scopes 1 and 2 in 2030 vs. 2019 ● 41% reduction in scopes 1 and 2 market-based vs . 2019 ● 38 million euros remaining to commit to the transition plan Objective: Bring the 80 most emitting suppliers on board in the reduction of their emissions ● 49 of the 80 most emitting suppliers in 2025 have a transition plan Objective: Implement an adaptation plan for 100% of Orano’s industrial activities ● 83% of entities with a local adaptation plan ● 250 million euros of adaptation costs included in the group’s

HSE policy, Climate strategy and Energy-Carbon performance plan ● Reduce energy consumption through performance projects: optimization of ventilation and driving, etc. ● Contribute to the direct or indirect decarbonization of the electricity of the countries where we operate and electrify the uses ● Bring the most emitting suppliers on board in the reduction of their emissions ● Eco-design all projects over 20 million euros HSE policy and “DARWIN” climate change adaptation Program ● Ensure climate monitoring, local modeling and analyzing vulnerabilities ● Prioritize the actions within a local adaptation plan and quantify them ● Integrate investments into the fi nancial trajectory ● Raise employee awareness of the topic

Impact of energy consumption and greenhouse gas emissions on climate change

Risk of inadequacy of the transition plan

Climate change mitigation [E1]

Contribution of nuclear to the fi ght against global warming

Opportunity for nuclear development and the group’s activities

Physical risks to Orano’s activities and its value chain caused by climate hazards Risk for Orano of an Upstream value chain not adapted to climate change

Climate change adaptation [E1]

fi nancial trajectory, including 15 million euros spent in 2025

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Orano - Annual Activity Report 2025