Cosa Announces Expansions to Orion Project and Joint Ventures with Denison Mines
Cosa Resources expands Athabasca footprint as Denison-backed drilling campaigns intensify

The most recent news (March 03, 2026) announces the expansion of the Murphy Lake North (MLN), Darby, and Orion projects in the eastern Athabasca Basin. Cosa acquired six new claims (2,669 hectares) for minimal cash consideration with no royalties or encumbrances. Key expansions include the Darby project (capturing the strike extension of the Delta trend) and the Orion project (covering enhanced basement-hosted conductivity). Operationally, the company is currently drilling at Darby and preparing for Q1 2026 drilling at MLN.
The news is Routine - Positive. While the acquisition of additional land without royalties is a strategic win, it represents an incremental expansion of existing projects rather than a transformative discovery or a new major partnership. - Strategic Alignment: The expansion directly follows the company’s strategy of consolidating land around high-priority conductive trends identified in 2025 surveys. - Cost Efficiency: Acquiring these claims for "minimal cash" preserves the treasury for the active 2026 drilling campaigns. - Operational Continuity: The news confirms that the winter drilling at Darby is underway and MLN is next, maintaining the timeline promised in late 2025.
Cosa Resources is a uranium explorer focused on the Athabasca Basin, Saskatchewan. Its flagship projects are Murphy Lake North (MLN) and Darby, both 70/30 Joint Ventures with Denison Mines. MLN is located just 2.7km east of the ultra-high-grade Hurricane deposit. The company is led by the team responsible for the Hurricane discovery (formerly IsoEnergy).