Orano - Annual Activity Report 2024 181 SUSTAINABILITY STATEMENT 4 Environmental information 4.2.4 A responsible management of our liabilities [E2] 4.2.4.1 IROs related to the management of liabilities 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 . In order to determine the IROs for the “Pollution” theme, Orano relied on interviews with its stakeholders, its risk analyses and its impact studies. The group has determined that “Management of liabilities and end-of-life of sites” is material. This topic is also included in the EFRAG draft sector guide on mining activities. MATERIAL IMPACTS, RISKS AND OPPORTUNITIES RELATED TO LIABILITY MANAGEMENT AND END-OF-LIFE OF SITES Type Impacts, Risks and Opportunities Localization in the value chain LIABILITIES MANAGEMENT AND SITE DECOMMISSIONING [E2] POTENTIAL NEGATIVE IMPACT POTENTIAL IMPACT OF AN ACCIDENTAL SPILL OF RADIOACTIVE OR HAZARDOUS SUBSTANCES OWN OPERATIONS, UPSTREAM IRO An accidental spill of hazardous or radioactive substances (environmental incident, breakwater, etc.) can cause environmental scars. Description Accidental pollution would impact the environment, as well as the working conditions of employees, the living conditions of local residents and the group’s image. Through its actions and investments in nuclear and industrial safety, Orano makes every effort to avoid accidental spills and limit their consequences on people and the environment. FUTURE RISK FINANCIAL RISK RELATED TO ENVIRONMENTAL INCIDENTS, LIABILITY MANAGEMENT AND SITE REMEDIATION OWN OPERATIONS IRO Incidents, poor management of the environmental responsibility of industrial and mining sites (historical scars, failure to manage long-term mineral processing residues, changes in regulations, etc.) would have a negative impact on the group’s finances. Description Additional costs in terms of environmental incidents or remediation are likely to impact the group’s results. Reputational damage is likely to impact the group’s revenue. Through its actions in terms of nuclear safety and industrial safety, Orano makes every effort to avoid accidental spills and limit their consequences. Regular assessments of provisions for the end-of-life of sites and the remediation of mining sites are carried out so that provisions can be updated. Orano has 8 billion euros in assets to cover the end-of-life expenses of its facilities. FUTURE RISK RISK RELATED TO THE ESTIMATED COSTS OF DISMANTLING NUCLEAR FACILITIES OWN OPERATIONS IRO Changes in regulations concerning the dismantling conditions of nuclear sites, the review of the initial state of the facility at the time of dismantling or its update, and the increase in project execution costs would increase dismantling costs of the group’s facilities. Description The main risk for the group is related to the uncertainty that the amounts provisioned for endof-lifecycle operations will correspond to the costs actually incurred by the group in respect of its dismantling obligations. It is therefore possible that end-of-lifecycle obligations and the associated expenses or an additional obligation of a nuclear or environmental nature that the group may subsequently have to bear could have a significant negative impact on its financial position. 4.2.3.6 Financial effects related to biodiversity and ecosystems Orano is working to quantify the financial effects related to risks and opportunities in terms of biodiversity and ecosystems. The group plans to publish these within three years, in accordance with the phase-in provision provided for by the standard (three years).
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