Annual Activity Report 2025

GOVERNANCE OF THE COMPANY AND GENERAL INFORMATION

Administration and management of the Company

The following table shows the attendance rate of directors and committee members as of December 31, 2025:

End-of-lifecycle obligations monitoring committee

Compensation and nominating committee

Strategy, investments and sustainability committee

Board of directors

Audit and ethics committee

Claude IMAUVEN Nicolas MAES Philippe BRAIDY

100% 100% 100% 100%

n/a n/a n/a n/a n/a n/a n/a

n/a n/a

100%

n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a

n/a n/a

100%

Anne-Marie DESCÔTES Anne-Isabelle ETIENVRE (1)

n/a n/a n/a n/a n/a n/a 60%

50%

67% 33% 83%

- %

François JACQ (2) David LECAVELIER Anne-Sophie LE LAY

25%

100%

100% 100% 100% 100%

86%

n/a n/a n/a n/a n/a n/a

100%

Aurore NEUSCHWANDER (3)

Patrick PELATA

n/a

Marie-Hélène SARTORIUS

100%

100%

100%

67%

n/a n/a

n/a n/a

67%

Cécile SELLIER (4) Julie SERRIER (5)

100%

100%

French state represented by Romain VALENTY

83%

86%

80%

83%

100% 100%

Cyrille VINCENT

100%

100%

n/a

n/a

(1) Director and member of SISC since July 31, 2025. (2) Director and member of SISC until July 30, 2025. (3) Member of the AEC since February 18, 2025.

(4) Director and Chairwoman of the EoLOMC until July 10, 2025. (5) Director and Chairwoman of the EoLOMC since July 31, 2025. 5.1.2.8 Executive session In accordance with its rules of procedure and the recommendations of the Afep-Medef Code, the Board of directors meets at least once a year in the absence of the Chief Executive Of fi cer in an executive session which is chaired by the Chairman of the compensation and nominating committee. 5.1.2.9 Board Assessment Pursuant to the recommendations of the Afep-Medef Code, Article 1.2 of the rules of procedure of the Board of directors provides that, at least once a year, the Board of directors will It appears that: ● the ef fi ciency of the Board of directors’ functioning was praised by the directors, who stressed in particular the considerable space given to debate and the way in which their requests were taken into account by management; ● the Chairman’s rigorous leadership, the culture of the Board of directors and the working relationship with the Executive Management, considered a relationship of trust, are among the Board of directors’ major strengths; ● the quality of the working documentation sent to the directors is unanimously recognized, as is the effectiveness of the Secretary of the Board; ● the new directors praised the quality of the onboarding and training process, deemed informative and comprehensive. Main strengths

dedicate one item on the order of business to the assessment of its composition, its functioning and its organization, as well as those of its committees, to make sure that important issues are properly addressed and discussed. Furthermore, at least once every three years, it shall carry out or have carried out a formal assessment of its activities. It shall inform the shareholders annually of the assessments performed and, where applicable, the action taken as a result of such assessment. In the last quarter of 2025, the Board of directors carried out an assessment of its functioning and organization in the form of a self-assessment questionnaire. The results of this assessment were reviewed by the Board of directors on December 17, 2025 and a summary of these results is presented below:

5

Development opportunities and associated action plan

Following the self-assessment, development opportunities were identi fi ed and the following action plan has been drawn up for 2026: ● review the possibility of setting up a new secure videoconferencing tool as part of the continuous improvement

of the digital tools available to the Board; ● review the governance of CSR issues;

● organization of training for directors on the regulations and management of end-of-lifecycle commitments and the speci fi c accounting characteristics of the group’s activity.

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Orano - Annual Activity Report 2025