Public Notice - Final Results of the Federal Indigenous Team Technical Review of the Wheeler River Project Submission

November 22, 2024: On November 20^th, the Canadian Nuclear Safety Commission (CNSC) completed their technical review of Denison Mines Corp.'s (Denison) responses to outstanding Information Requests (IRs) for the Wheeler River environmental impacts statement (EIS) technical review. CNSC has found that the information fully addresses the regulatory requirements for the environmental assessment (EA). All responses to IRs are now deemed as accepted.

The following documents have been posted:

• Cover Letter - CNSC to Denison - Results of the Federal Indigenous Technical Review of the Wheeler River Project Submission (2024-11-20)
• Annex 1 – Results of the Federal Indigenous Technical Review of the Wheeler River Project – Resolved Information Requests for the Wheeler River Project Submission (2024-10-11)
• Wheeler River – October 30^th Supplementary Submission for IR-174 from Denison - Memo: Omnia Ecological Services, Denison Wheeler River 2024 Replicate Bat Surveys (2024-10-30)
• Wheeler River – November 13^th Supplementary Submission from Denison for IR-114 and IR-174 (2024-11-13)
• Wheeler River – November 19^th Supplementary Submission from Denison for IR-114 (2024-11-19)

CNSC staff expect Denison to submit a Final EIS package, including revised responses to the Consolidated Comments from Indigenous Nations and Communities and the Public on the Wheeler River Project. Once received, the submission will undergo a 30-day review by CNSC staff to ensure all documents have been updated accordingly and that all comments from Indigenous Nations and Communities and members of the public have been addressed in an acceptable manner.

Once CNSC staff deems the submission as Final, staff will notify Denison that the EIS has been accepted and will proceed with developing the Canadian Environmental Assessment Act, 2012 (CEAA 2012) EA Report summarizing the results of the technical review and staff's recommendations to the Commission.