By Elias Schisgall
Shares of Cosa Resources and Denison Mines rose after the companies said drilling had commenced at their joint Darby project.
Cosa shares were up 8% to 54 Canadian cents on Wednesday (40 U.S. cents). Cosa stock is up 74% over the past year.
Shares of Denison rose 6% to $4.18. They have more than doubled in value in the past 12 months.
The companies said Wednesday that 2,500 meters are planned at the Saskatchewan site in winter 2026, focusing on testing up to four initial priority targets.
They said drilling would follow at the nearby Murphy Lake North project.
Both projects are joint ventures between Cosa and Denison. Cosa is operating both projects and has a 70% interest, while Denison has a 30% interest.
Write to Elias Schisgall at elias.schisgall@wsj.com
(END) Dow Jones Newswires
January 28, 2026 13:23 ET (18:23 GMT)
Copyright (c) 2026 Dow Jones & Company, Inc.
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