ORANO // Annual Activity Report 2024

STATEMENTS

Consolidated fi nancial statements - fi nancial year ended December 31, 2024

NOTE 13 END-OF-LIFECYCLE OPERATIONS

Provisions for end-of-lifecycle operations

Net carrying amount at December 31, 2024

Net carrying amount at December 31, 2023

Reversal used

Third-party expenses

Revisions to

Other changes

estimates Accretion

(in millions of euros)

Provisions for dismantling

5,241

(169)

(15)

182

255

97

5,591

Provisions for waste retrieval and packaging Provision for long-term waste management (transport & storage) Monitoring costs after closure of storage facilities Provisions for end-of-lifecycle operations (regulated *) Provisions for end-of-lifecycle operations (non-regulated *) PROVISIONS FOR END-OF-LIFECYCLE OPERATIONS

1,395

(112)

-

33

71

63

1,450

1,454

(14)

-

29

72

55

1,595

66

(1)

-

-

3

4

72

8,156

(297)

(15)

244

401

219

8,708

352

(25)

(1)

(4)

17

11

351

8,508

(322)

(16)

240

418

231

9,059

* Scope of application of the French law of June 28, 2006.

At December 31, 2024, used provisions in the amount of 322 million euros correspond to expenses incurred by the group in relation to end-of-lifecycle operations. Revisions to estimates for 240 million euros include charges and reversals relating to: ● the dismantling of facilities in operation for 81 million euros, including the commissioning of new fi ssion product concentrators (NCPF) for 47 million euros (offset by dismantling assets, attributable to owners of the parent [see Note 11]); ● the dismantling of decommissioned facilities and WRP and long-term waste management operations for 158 million euros, of which 61 million euros fi nanced by commercial contracts (offset by operating income). The other changes amounting to 231 million euros are due to changes in fi nancial assumptions over the 2024 fi nancial year. The changes in fi nancial assumptions are offset by the following: ● a fi nancial expense of 109 million euros related to decommissioned facilities (see Note 7); ● an increase in dismantling assets attributable to owners of the parent, for 121 million euros in respect of facilities in operation (see Note 11); and ● an increase in third-party dismantling assets for 1 million euros in respect of facilities in operation. Nature of the commitments As a nuclear facility operator, the group has a legal obligation to secure and dismantle its production facilities when they are shut down, in whole or in part, on a permanent basis. It must also retrieve and package in accordance with prevailing standards

certain legacy waste as well as the waste resulting from operating and dismantling activities. Furthermore, the group must assume fi nancial obligations to monitor storage sites after their closure. In December 2004, the CEA, EDF and Orano signed an agreement concerning the Marcoule site, which transfers the responsibilities of site owner-operator to the CEA, which will be responsible for funding the dismantling of the site facilities. This agreement does not cover shipping and fi nal storage costs for high and medium level long-lived waste (HL-LLW/ML-LLW). Accordingly, provisions for the Marcoule site only cover Orano’s share of waste shipping and fi nal waste storage costs. For all the facilities within the regulated scope and those outside the regulated scope, Orano uses the same methods to assess both the cost of end-of-lifecycle operations and expenses related to disposal and storage of radioactive waste. In accordance with Article 20 of French planning law No. 2006-739 of June 28, 2006 on the sustainable management of radioactive materials and waste, codi fi ed in Articles L. 594-1 et seq . of the French Environmental Code, Orano submits a report on INBs to the administrative authority every three years setting out cost estimates and calculation methods for end-of-lifecycle provisions, as well as an annual update of this report. Measurement of provisions for dismantling and waste retrieval and packaging operations (WRP) The costing of facility dismantling and WRP operations is based on methodologies and scenarios describing the nature and timing of the planned operations. The estimate is based on a parametric approach for facilities in operation (costing resulting from the inventory of the facility: volume of materials, equipment, etc .)

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Orano - Annual Activity Report 2024