Annual Activity Report 2025

RISK CONTROL AND VIGILANCE PLAN

Vigilance plan

MAIN INDICATORS RELATED TO THE VIGILANCE PLAN HEALTH – OCCUPATIONAL SAFETY

Reference 2019

2025

Indicators

2024

2023

Comments

Results indicators Accident frequency rate with lost time (excluding commuting accidents)

1.0

1.1

1.2

1.8

Number of fatal accidents among Orano employees

0 0

0 1

0 0

0 0

Number of fatal accidents at external companies

To be compared with the maximum additional authorized exposure for the public of 1 mSv To be compared with the maximum additional authorized exposure for the public of 1 mSv

Average exposure of employees to radiation over 12 consecutive months (mSv)

0.58

0.63

0.59

0.84

3

Average exposure of subcontractors to radiation over 12 consecutive months (mSv)

0.46

0.51

0.69

0.50

To be compared with annual authorized maximum dose of 20 mSv The maximum dose displayed containment breach event that occurred in April 2025 was reported to the ASNR, without exceeding an annual regulatory limit. for 2025 is “excluding incidental situations.” A

Maximum dose for Orano employees (mSv)

11.4

11.5

12.1

15.9

Means indicators Percentage of its workforce covered by its health and safety management system based on legal requirements and/or recognized standards or guidelines Number of ISO 45001 and OHSAS 18001 certi fi ed sites Number of listening and psychological support services in place (France

100% 100%

n/a

n/a

22

22

22

n/a

25

25

25

n/a

n/a: not applicable All methodological details are available in Chapter 4 – Sustainability information.

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Orano - Annual Activity Report 2025