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Cosa Commences Largest Drill Program to Date at the Murphy Lake North Uranium Joint Venture with Denison Mines

$DNNPress releaseJun 18, 2026, 8:00 AM ETRead the release

Cosa Resources has commenced a 6,000-meter, 15-hole drill program at the Murphy Lake North joint venture, in which Denison Mines owns a 30% working interest. The summer program targets extensions of high-grade mineralization discovered during the 2026 winter program, including intercepts grading up to 1.70% U3O8 over 0.5 meters.

Key figures

Drill holes
15
Drill meters
6000
Max grade u3o8 percent
1.7
Denison jv interest percent
30

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