DENISON MINES CORP.

Denison Mines Corp. is a uranium mining company engaged in the acquisition, exploration, and development of uranium-bearing properties primarily in Canada's Athabasca Basin region of northern Saskatchewan. It operates as the manager of the Wheeler River joint venture, holding a 95% effective interest in the flagship project that features the Phoenix in-situ recovery uranium mine, with site preparation and construction underway since March 2026 targeting first production by mid-2028, and the Gryphon deposit. The company also participates in production at the McClean Lake Joint Venture using the SABRE mining method at McClean North, and maintains interests in exploration properties such as Midwest, Waterbury Lake, and joint ventures including Darby, Murphy Lake North, Russell Lake, and Getty East. Denison Mines Corp. employs advanced ISR techniques at high-grade deposits to position itself as a key player in the uranium sector. Founded in 1954 and headquartered in Toronto, Canada, it focuses on advancing projects through feasibility, permitting, and operational stages in a supply-constrained market.