Annual Activity Report 2025

2 SITUATION AND ACTIVITIES OF THE COMPANY AND ITS SUBSIDIARIES DURING THE PAST FINANCIAL YEAR The group’s businesses

2.3 The group’s businesses

Refocused on all nuclear fuel cycle operations, Orano operates in Mining, the Front End and the Back End of the cycle, as well as other activities.

SCOPE OF ORANO OPERATIONS AT DECEMBER 31, 2025

Other activities

Mining

Front End

Back End

Nuclear Medicine

Recycling

Chemistry Enrichment

Mining

Nuclear Packages and Services

Batteries program

Dismantling and Services

Engineering

Aval du Futur program

Source: Orano

2.3.1 Mining The group’s mining activities concern the production and commercialization of natural uranium, which is used after conversion and enrichment to produce fuel for nuclear reactors. The principal operational businesses of the Mining business follow the lifecycle of a mine, i.e. : ● exploration: search for new deposits; ● development of mining projects: detailed studies, procurement and construction;

● production: extraction, using various mining techniques, followed by processing of uranium ore (concentration of natural uranium by chemical means); ● site redevelopment and conversion after operation: rehabilitation of mining sites in accordance with current environmental standards, followed by environmental monitoring. The lifecycle of a mine is shown in the following diagram.

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Orano - Annual Activity Report 2025