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Denison Mines shares advanced after joint venture partner Cosa Resources reported a significant radioactive intercept at the Murphy Lake North project. Concurrently, Denison is moving forward with site preparation for its major Phoenix in-situ recovery uranium mine.

Denison Mines shares gained 3% as the company moves from permitting to construction at its Phoenix in-situ recovery uranium project. The mine is Canada's first major uranium construction approval in over two decades.

Denison Mines shares climbed 1.2% after announcing the start of site preparation at its Phoenix uranium project in Saskatchewan, following final federal approval. The company targets first production by mid-2028.

Denison Mines Corp. shares fell 1.6% following its 2025 financial results, which showed a widened net loss of C$217.3 million. The company confirmed it will begin construction this month on its Phoenix uranium project, targeting first production by mid-2028.

Denison Mines Corp. has initiated a significant 7,500-meter drill program at its Wheeler North joint venture in Saskatchewan, coinciding with the start of construction at its flagship Phoenix uranium mine, which received final regulatory approval.