Annual Activity Report 2025

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SUSTAINABILITY STATEMENT Environmental information

IMPACT OF METHODOLOGICAL CHANGES BETWEEN THE 2024 PUBLICATION AND THE 2025 RESULTS

-30%

2,318

89

600

+1%

37

31

16

KtCO 2 e

1,629

1,651

Change in scope 3 following the update of the ADEME monetary emissions factors

2024 scopes 1, 2 market-based and 3 emissions reported in 2024

Restatement following the deconsolidation of Somaïr (Niger)

2024 scopes 1, 2 market-based and 3 emissions reported in 2025

Change in scopes 1 and 2 related to operational activity

Financing of photovoltaic projects in Kazakhstan and Canada

Change in scope 3 related to operational activity

2025 scopes 1, 2 market-based and 3 emissions

Source: Orano

The intensity of scopes 1 and 2 market-based GHG emissions has decreased by -58% since 2019 and 11% between 2024 and 2025. The Orano group’s scope 3 order of magnitude is around 1.5 million tCO 2 e. Emissions were up compared to 2024 due to increases in activity at our main industrial sites, in particular reflected in “Purchases of goods and services”. Scope 3 intensity decreased in 2025 due to revenue growth. By the end of 2025, 49 of the 80 suppliers with the highest emissions in 2025 (representing around 50% of Orano’s upstream scope 3 carbon footprint) committed to a decarbonization trajectory by 2030 or 2050. Almost all of these suppliers have implemented at least one other action to limit their environmental impact (respect for biodiversity, use of recycled materials, renewable resources, waste recycling, etc .).

Results in line with the objective In 2025, Orano’s scopes 1 and 2 greenhouse gas emissions amounted to 225,456 tCO 2 e (market-based) and 300,451 tCO 2 e (location-based), split approximately 50% between scope 1 and scope 2 (location-based). 64% of the emissions are related to mining activities. However, location-based emissions in 2025 are 6% higher than in 2024, mainly due to an increase in activity in Canada leading to an increase in fossil fuel consumption and higher production levels than in 2024 at most of the group’s large industrial sites. The reduction of the scopes 1 and 2 footprint reached -21% location-based since 2019 and -41% market-based since 2019. These reductions are in line with the group’s objectives.

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Orano - Annual Activity Report 2025