Annual Activity Report 2025

Orano - Annual Activity Report 2025 309 GOVERNANCE OF THE COMPANY AND GENERAL INFORMATION 5 Share capital and shareholding structure 5.5 Share capital and shareholding structure 5.5.1 Share capital Amount of share capital as of December 31, 2025 As of December 31, 2025, the Company’s share capital amounted to 136,649,559 euros, divided into 273,299,118 shares with a par value of 0.50 euro each. All shares are fully paid up. Characteristics of the shares There is only one class of shares. The shares are registered shares. Double voting rights are allocated to registered shares under the conditions set out in Section 5.4.2 of this chapter. Capital authorized but not issued As of the date of this report, the General Meeting has not granted any delegations for capital increases to the Board of directors pursuant to Articles L. 225-129-1 and L. 225-129-2 of the French Commercial Code. Changes in share capital over the last three financial years On October 9, 2024, the General Meeting decided to increase the share capital of the Company, with preemptive subscription rights, in cash by a total amount of 299,999,952 euros (issue premium included) by issuing 9,146,340 new ordinary shares with a par value of 0.50 euro each, at a price of 32.80 euros per new share (including an issue premium of 32.30 euros per new share). This capital increase was fully subscribed and the Company’s share capital increased from 132,076,389 euros to 136,649,559 euros. There has been no other change in share capital over the last three financial years. 5.5.2 Distribution of the Company’s capital and voting rights Shareholder structure The shareholders of Orano SA as of December 31, 2025, 2024 and 2023 are as follows: Situation at Dec. 31, 2025 Situation at Dec. 31, 2024 Situation at Dec. 31, 2023 Number of shares % of share capital % of voting rights Number of shares % of share capital % of voting rights Number of shares % of share capital % of voting rights French State 246,883,839 90.33% 90.17% 246,883,839 90.33% 90.17% 237,737,499 90.00% 89.47% CEA 1 0.0000004% 0.0000004% 1 0.0000004% 0.0000004% 1 0.0000004% 0.0000004% Japan Nuclear Fuel Limited 13,207,639 4.83% 4.91% 13,207,639 4.83% 4.91% 13,207,639 5.00% 5.26% Mitsubishi Heavy Industries Ltd 13,207,639 4.83% 4.91% 13,207,639 4.83% 4.91% 13,207,639 5.00% 5.26% TOTAL 273,299,118 100% 100% 273,299,118 100% 100% 264,152,778 100% 100%

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