ORANO // Annual Activity Report 2024

Orano - Annual Activity Report 2024 278 5 CORPORATE GOVERNANCE AND GENERAL INFORMATION Administration and management of the Company MARIE-HÉLÈNE SARTORIUS INDEPENDENT DIRECTOR AGE: 68 NATIONALITY: French DATE OF ENTRY TO THE BOARD: 07/27/2017 DATE OF RATIFICATION OR APPOINTMENT AT THE GENERAL MEETING: 07/27/2017 DATE OF LAST REAPPOINTMENT: 04/25/2024 END DATE OF THE TERM OF OFFICE: 2028 GM YEARS PRESENT: 7.5 years ATTENDANCE RATE AT BOARD MEETINGS: 100% Born on January 23, 1957 in Lyon (France), a French national, Marie-Hélène SARTORIUS is a graduate of École polytechnique and École nationale des ponts et chaussées. She began her career at Banque Paribas, now BNP Paribas, where she held a number of positions in management control and corporate banking before being appointed Head of Specialized Financing for Europe (LBOs, project finance). In 1995, she joined the Markets Department of the Paribas Group in London as Head of Risk. In 1999, she launched a new credit derivatives trading business for the group. In 2001, Marie-Hélène SARTORIUS joined PricewaterhouseCoopers (PwC) as a Partner in charge of consulting services in France and provided advice to large international groups until 2016. She worked primarily with large, listed investment banks, and energy companies, where she specialized in risk management, performance optimization and major transformation programs. On an international level, Marie-Hélène SARTORIUS has been a member of PwC’s EMEA Financial Services Leadership Team and its Global Financial Services Advisory Leadership Team. Since 2016, her activities are dedicated to Corporate Governance and she sits on several Boards of Directors. (particularly in the Banking/Insurance/Energy sectors). She has been a member of the Board of Directors of the Company since July 27, 2017. OTHER OFFICES HELD ● Director of Bank of America Securities Europe SA (since 10/16/2020); ● Director of BNP Paribas Cardif SA (since 05/12/2016); ● Director of Milleis Banque SA (since 08/31/2017). OFFICES EXPIRED DURING THE PAST FIVE YEARS ● Director of Gemalto BV SA (expired 04/02/2021). CÉCILE SELLIER DIRECTOR AGE: 57 NATIONALITY: French DATE OF ENTRY TO THE BOARD: 05/14/2020 DATE OF RATIFICATION OR APPOINTMENT AT THE GENERAL MEETING: 05/14/2020 DATE OF LAST REAPPOINTMENT: 04/25/2024 END DATE OF THE TERM OF OFFICE: 2028 GM YEARS PRESENT: 4.5 years ATTENDANCE RATE AT BOARD MEETINGS: 75% Born on May 12, 1967 in Paris (France), a French national Cécile SELLIER is a graduate of École polytechnique (1987), École nationale supérieure des techniques avancées (1992), the Higher Nuclear Armament School (1992) and École normale supérieure (1995). She began her career at the French atomic energy commission (CEA) in 1992 as an engineer in the field of nuclear weapons in the military applications division. She then joined the French Defense Department (DGA) in 1996 as an engineer in charge of materials research. After holding various positions in the field of nuclear deterrence within the DGA, in 2008 she was promoted to Director of Surface-Air Defense Systems for the French Air Force and Navy and French National Coordinator of these European cooperation programs, then Head of the entire tactical missile management segment. From 2011 to 2014, she managed various programs related to nuclear deterrence and headed the airborne deterrent department of the Operations Department. From 2014 to 2016, she managed the DGA’s missile test center. From 2016 to 2018, she was in charge of the Deterrent mission for the General Delegate for Armaments. She was subsequently appointed Deputy Director of Operations of the DGA from 2018 to 2020. Since February 1, 2020, she held the position of Technical Director at the DGA and was appointed Director of Engineering and Expertise at the DGA on March 6, 2024. She also represents the French Ministry of the Armed Forces on the CEA Board of Directors. She has been a member of the Board of Directors of the Company since May 14, 2020. OTHER OFFICES HELD ● Director of CEA (since 03/19/2019). OFFICES EXPIRED DURING THE PAST FIVE YEARS ● None.

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