Annual Activity Report 2025

Orano - Annual Activity Report 2025 105 RISK CONTROL AND VIGILANCE PLAN 3 Vigilance plan This policy brings together the group’s actions in its upstream value chain and is based on the following four pillars: ● choosing partners who are committed to their employee’s fundamental rights, health and safety; ● reducing the environmental impact of the group’s purchases; ● building balanced and virtuous relationships with the group’s partners and contributing to the development of SMEs; and ● contributing to the development of the industrial sector as well as the economies of the areas in which the group is active. The Responsible Purchasing policy thus consolidates and reinforces all the measures taken by the group to ensure an informed choice of its suppliers and subcontractors. It is available on the Orano website at the following address www.orano.group Responsible Supplier Relations Charter Orano has also been a signatory since 2010 and again since December 2, 2021, upon its reissue, of the “Charter for Responsible Supplier Relations” (http://www.rfar.fr/). By signing this Charter, Orano expresses its commitment to implementing a continuous improvement plan with its partners, within a framework of mutual trust and respect for the rights and responsibilities of all parties involved. The Charter outlines 10 commitments whose aim is to establish responsible business practices between customer/ supplier partners that are conducive to the development of a sustainable relationship. This commitment is further reinforced by the appointment of an internal mediator within the Company, who can be referred to by the group’s suppliers when a situation has not been resolved through amicable negotiation, reachable at the following email address: G-ORN-MEDIATEUR@orano.group. Identification and evaluation of potentially at-risk suppliers In order to identify suppliers that may present risks within the meaning of the law on the duty of vigilance, the group uses three key criteria: ● the volume of annual purchases made with its suppliers and subcontractors; ● the nature of the purchase; and ● the geographical location of the products or services produced, assessed using a country index provided by an independent body specializing in ESG risk assessment. This process led to the identification of a number of suppliers subject to additional investigations and verifications, planned to ensure that no risk of serious harm to individuals or the environment exists. Initial results of these investigations did not reveal any major risks. When necessary, action plans have been drawn up to engage the suppliers concerned in a continuous improvement process. In 2024, Orano Mining launched its duty of vigilance approach in Kazakhstan by relying on the supplier risk analysis defined by the group’s Supply Chain Department. An evaluation questionnaire designed by a panel of experts representative of the group’s various departments was sent to the main suppliers during a visit to the headquarters or on-site conducted by the internal control and supply chain teams. These visits provided an opportunity to discuss changes in European duty of vigilance legislation and its application at the Katco site in Kazakhstan with company executives and their employees. It was emphasized that requests for information about suppliers’ employees are an integral part of the process. The first results do not highlight any major risk. Katco is also developing a culture and standards in terms of safety, environmental protection and respect for human rights to help improve its suppliers and comply with Orano Mining’s requirements. To support the deployment of this approach, an external expert was selected to carry out a detailed study in order to highlight any gaps between the requirements of French law on duty of vigilance and the legislation of the country. The study was supplemented by an in-depth analysis of the purchasing segments most exposed to risks to focus on them. CSR criteria in tenders The Supply Chain Department selects its suppliers and subcontractors according to strict criteria. In 2025, the group harmonized the CSR criteria included in tenders analysis grids. These criteria break down as follows: The safety criterion: ● lost-time accident frequency rate. Societal criteria: ● ratio of financial resources allocated to training relative to total payroll; ● gender equality index; ● existence of a diversity policy within the Company. Environmental criteria: ● the Company’s commitment to decarbonization; ● evaluation of the “carbon” budget of the proposal; ● promotion of a “low-carbon” alternative. CSR survey In 2024, the group conducted a CSR survey among its major suppliers, covering five CSR themes: climate preservation, respect for the environment, social responsibility, supplier relations, as well as policies, standards and labels. This survey deepened knowledge of the partners’ practices and guided the definition of the objectives of the Responsible Purchasing policy for the 20242026 period. With regard more specifically to the “preservation of the climate” theme, the group has: ● identified the suppliers with the most significant carbon footprint; ● sent these suppliers a dedicated questionnaire to receive data on the concrete actions implemented in 2024 to reduce their emissions and their decarbonization objectives by 2030; ● introduced structured monitoring of the data collected. In 2025, an action is also underway within the group to integrate the specific emission factors of the suppliers with the highest impact in the calculation of scope 3 related to purchases.

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