ORANO // Annual Activity Report 2024

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

4.1.5.2 Double materiality analysis methodology

Identi fi cation and assessment of impacts Impacts address the effects that the company has or could have on the environment and the population, including effects on human rights, due to its own activities and its Upstream and Downstream value chain, in particular through its products and services, as well as through its business relationships. These impacts may be actual or potential, negative or positive, intentional or unintentional, and reversible or irreversible. They can occur in the short-term, medium-term or long-term. Impacts indicate the positive or negative contribution of the company and its value chain to its ecosystem. Orano has chosen to rely on its stakeholders to establish this list of impacts relating to the ESG topics selected. Around 150 interviews have been organized by the group with a relevant selection of stakeholders (legitimate within the meaning of the CSRD) in order to gather their vision of how our activities or Orano value chain impact them. The information gathered from the interviews was processed by an internal governance body dedicated to the double materiality analysis according to the relevance of the topics by stakeholder. In accordance with ESRS 2, the impact is formulated as the gross impact, positive or negative, potential or actual, on a stakeholder within a time horizon. The negative impacts were compared or enhanced with the Duty of Vigilance risk mapping. All the risks listed in the Duty of Vigilance risk mapping are covered by the IROs and material sub-i topics, even if the fi nal wording and groupings are different (in particular due to the structure imposed by the French Duty of Vigilance law in three pillars and by the CSRD Directive by ESRS). The impacts on biodiversity were further analyzed by a specialized fi rm. When interviews were not possible or when quality information was already available, Orano relied on documentary analysis. Diversi fi cation activities such as Orano Med and the electric vehicle battery recycling program were covered by an analysis of sectoral materiality (pharmaceuticals and automotive). Insofar as these value chains target health and mobility, they have material topics similar to those of energy. Impacts were assessed according to scale, scope, remediability and likelihood as required by ESRS 2. In the case of human rights impacts, severity took precedence over probability (orange boxes in the thresholds table). Identi fi cation and assessment of the risks and opportunities Sustainability issues resources can be a source of fi nancial opportunities or risks. Financial materiality is determined according to thresholds that impact the company’s statement of fi nancial position, income statement or cash flows. The risks identi fi ed are taken from the Orano annual risk campaign, known as the “Business Risk Model” (BRM), formulated in a “gross” manner, unlike their presentation as “net risk” in Chapter 3 of this report.

The double materiality analysis was carried out for the fi rst time in 2024 according to the requirements of ESRS 2. It was carried out on the scope of consolidation, as well as on the Upstream and Downstream value chain described in Section 4.1.3.1. Scope of the double materiality analysis Orano took into account all of its activities, its Upstream and Downstream value chain.

EFRAG SECTORS WITHIN THE ORANO VALUE CHAIN

Activities operated by Orano

Downstream sectors Energy Waste treatment Medical Automotive

Upstream sectors

Energy Chemistry Mining and metallurgy Buildings Manufacturing Services

Mining Chemistry Logistics

Waste treatment Metal fabrication Engineering Industrial services Medical Automotive

Identi fi cation of sub-topics relevant to the analysis

On the basis of AR 16 of ESRS 1 and sector analyses (draft sector standard “Mining, Quarrying and Coal”, benchmark, analysis of non fi nancial rating agency grids, etc .), the group selected 35 topic at the start of the process. The “Microplastics [E2]” and “End-user safety [S4]” topics have been ruled out as irrelevant to the group’s activities and value chain. The sub-topics linked to the biodiversity pressure factors “Climate change”, “Water” and “Pollution” have been dealt with in the associated topics (E1, E2 and E3). The sub-topics “Invasive alien species”, “Land-use change”, “State of species” and “State of ecosystems” were dealt with under ESRS E4 “Biodiversity and ecosystems”. Some sub-topics have been reformulated compared to AR 16 of ESRS 1 to improve their readability, as presented in the table below. Only the “Data security and cybersecurity [G1]” topic comes from the “Mining, Quarrying and Coal” draft of ESRS sector standard and the sector grids of the ESG rating agencies. The “Waste” sub- topic of AR 16 was divided into two sub-sub topics, namely “conventional waste” and “radioactive waste” to adapt to the speci fi c characteristics of the group. Similarly, the sub-item “Pollution of air, water and soil” was broken down into chronic pollution generated by operations and accidental spills and treatment of historical pollution (liabilities).

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Orano - Annual Activity Report 2024