Cosa's Strategic Collaboration with Denison Mines
Three eastern-Athabasca joint venture with Denison Mines – an industry leader and Cosa’s largest shareholder
Joint Venture Overview
In January 2025, Cosa entered a transformative strategic collaboration with Denison Mines that has secured Cosa access into several additional highly prospective eastern Athabasca uranium exploration projects. These Projects offer Cosa over 20,000 ha of additional exposure into what the Company considers to be mature, discovery-ready projects that are well situated close to existing eastern Athabasca infrastructure and boast several walk-up drill targets based on encouraging results from historical drilling.
Most notable is the Murphy Lake North Joint Venture where Cosa recently announced the intersection of five metres of radioactivity during the winter 2026 drill program. As Cosa’s largest shareholder, Denison Mines gains exposure to Cosa’s potential for exploration success and its pipeline of uranium deposits.

Three Projects. One Strategic Vision.
Explore A Portfolio Built for Discovery
murphy lake north
Where boreal wilderness meets high-grade discovery. Aerial views of ambition in action.
