Exploring for the next major uranium discovery in the Athabasca Basin
Download Corporate PresentationJun 18th, 2026
6,000 metre drill program to follow up on 5.0 metres of 0.55% U₃O₈ uranium mineralization during the winter campaign
In the Spotlight:
Cosa commences largest drill program to date for the Murphy Lake North Joint Venture with Denison Mines.
A 70/30 Cosa operated Joint Venture with Denison Mines where drilling intersected 5.0m of 0.55% U₃O₈ in March 2026.
Murphy Lake North Project
A 70/30 Cosa operated Joint Venture with Denison Mines. A mature, discovery-ready project with abundant drill targets.
Darby Project
Strategic Exploration Collaboration with Denison Mines, our largest shareholder
Denison Collaboration
A Track Record of Success
Led by the AME Colin Spence Award-winning Hurricane discovery team, Cosa brings a proven track record of uncovering world-class uranium deposits across the Athabasca Basin.
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THE COSA STORY
Why uranium, why now, why Cosa
Global electricity demand is rising as electrification and decarbonization accelerate, bringing nuclear power back into focus. Every reactor needs uranium, yet supply is struggling to keep pace with future demand.
Northern Saskatchewan’s Athabasca Basin hosts the world’s highest-grade uranium deposits, including the mines supplying much of the global market. New discoveries here are rare and valuable.
Cosa Resources is a Canadian exploration company focused on the eastern Athabasca Basin. Our portfolio spans approximately 237,000 hectares across wholly-owned and joint-venture projects, including three strategic joint ventures with Denison Mines, one of the Basin's most established operators and now Cosa's largest shareholder.
We operate our projects, bring prior Basin discovery experience, and take a disciplined approach to exploration. The next major discovery in the eastern Basin could come from here. And we’re built to find it.
