Orano - Annual Activity Report 2025 228 4 SUSTAINABILITY STATEMENT Social and societal information Nuclear and industrial safety targets The nuclear industry is one of the most highly regulated industries in the world. Anomalies and incidents are reported to the administrative authorities and the public is informed. As part of the continuous improvement of the performance of nuclear and industrial risk management, Orano systematically analyzes the technical, human, and organizational causes of all these events and implements actions to avoid their recurrence. For the activities for which Orano is the service provider and for the anomalies or incidents declared by the operator and for which Orano might be at the origin of one or more causes, Orano voluntarily carries out an analysis of the events in the same way. INTERNATIONAL NUCLEAR EVENT SCALE (INES) The International Nuclear Event Scale (INES) is a means of quickly and consistently informing the public of the importance for the safety of events that have occurred in regulated nuclear facilities. By putting events in the right perspective, this scale can facilitate mutual understanding between the nuclear community, the media and the public. The events are classified on the scale according to seven levels. The events corresponding to the higher levels (4 to 7) are classified as accidents, and those corresponding to the lower levels (1 to 3) as incidents or anomalies. INES SCALE Accidents with local consequences Accidents with widespread consequences Serious accident Major accident 7 6 5 4 Anomaly Incident Serious incident 3 2 1 Not important from a safety standpoint 0 ACCIDENT INCIDENT Source: Orano In its Engagement roadmap, the group has set itself a target by 2030 of avoiding significant nuclear and radiological events of level 2 or higher according to the INES scale. The group also uses an internal scale called ASSESS (Advanced Severity Scale for Events and Soft Signals). It takes into account industrial safety events. The objective is to have elements of comparison and thus to better judge their seriousness. Based on the principles of the ARIA scale, the INES scale, and adapted to the group’s industrial and mining operations, it is graduated from 0 (weak signal) to 5 (serious accident). As part of the 2024-2026 HSE policy, the group has set itself no ASSESS level 3 or higher event. The progress of these results is presented to the executive committee on a monthly basis. These objectives are defined on a principle of continuous improvement every three years as part of the update of the HSE policy. In particular, they take into account the expectations of the administrative authorities, representing the interests of local residents and the public.
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