Public Notice - Technical Review for the Wheeler River Project EIS Submission

December 5, 2023: The federal and Indigenous review team (FIRT) has completed their technical review of the responses to information requirements (IRs) submitted by Denison Mines Corp. (Denison) and has found that the information provided does not fully address the regulatory requirements for the environmental assessment (EA). To date, the FIRT technical review of Denison's responses to the 238 information requests (IRs) has resulted in 144 accepted IRs and 18 follow-up IRs.

Additional information in the advice to proponent table contain guidance and advice that Denison should take into consideration when responding to IRs and when revising the draft EIS.

The following documents have been posted:

• Letter from CNSC staff to Denison with the Outcome of Denison's Submission of Responses to Information Requests
• Annex 1 - FIRT - Information Requirements for the Wheeler River Environmental Impact Statement
• Annex 2 - FIRT - Advice to the Proponent for the Wheeler River Environmental Impact Statement

CNSC staff expect Denison to submit complete revised responses to all outstanding and new IRs as well as advice to the proponent, along with a revised EIS and supporting documentation. Denison's responses may be reviewed several times to ensure the responses meet requirements. Once the revised draft EIS meets regulatory requirements, CNSC staff will proceed with developing an EA report.