COSA RESOURCES
Saskatchewan, Canada
Cosa Resources: Geological Background
Cosa Resources (COSA · TSX-V) · Saskatchewan, Canada
Company also owns 160,000+ hectares of 100% owned projects within orperipheral to proven uranium corridors…
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Analysis by Bill Pearson, PhD, P.Geo
Updated Jul 30, 2026
- Majority interests in JVs with Denison Mines Corp across Murphy Lake North, Darby, & Packrat projects, covering 21,000 ha in the prolific Athabasca Basin, the heart of Canadian uranium mining.
- Athabasca Basin hosts the highest-grade uranium deposits in the world, which commonly grade 10-100 times higher than the global average uranium deposit.
- Company also owns 160,000+ hectares of 100% owned projects within or peripheral to proven uranium corridors
- Target is uranium deposits located at or near the unconformity between flat-lying Athabasca sandstones and older metamorphic rocks
- Cosa is led by an experienced team directly credited with the co-founding of both NexGen and IsoEnergy, as well as discovery of the Phoenix, Gryphon, and Hurricane uranium deposits.
Exploring Major U Fertile Structural Corridors
Darby
- 10km west of Cigar Lake Mine
- Drilling intersected highly anomalous uranium mineralization of 0.04% over 0.5m onthe Charlie trend
- 100-metre-wide graphitic structural corridor with the strongest sandstone alteration known on the project & significant unconformity relief.
Murphy Lake North
- 3km east & on trend with the Hurricane deposit
- DDH MLN26-013 hit 5.0 m of anomalous radioactivity up to 13,900 CPS1 in the upper basement approx. 260m from surface.
- Strong, structurally controlled alteration in both the sandstone & basement is open in all directions
- Lone drill hole within a 1.2km section of the Cyclone trend
Figure 1
Source: Cosa Resources
NEWS RELEASES
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Actual holdings will vary for each client or fund and there is no guarantee that a particular account will hold any or all of the securities discussed. All investing involves risk including risk of loss. Crescat target resource estimates (TSE) are based on internal modeling and geologic estimates, and include various assumptions based on analysis of geology, geophysics, geochemistry, historic drill assays, and metallurgical recovery data received to date. TSE are discounted based on drilling progress to date, an assessment of the management and technical team's strengths and weaknesses affecting their ability to advance the project, and environmental, local community, and government permitting risk factors. Estimates are displayed on a gold equivalent basis based on current price-to-gold ratios for silver, copper, and other metals if the primary metal is other than gold. Further drilling, assaying, resource modeling, and engineering studies will be required to determine whether Crescat's TSE can be reasonably expected to be achieved. Crescat's target resource estimates are updated monthly across the entire portfolio. Sources: Crescat Capital LLC, Bloomberg, Issuer. Expected profitability percentile is based on Crescat's geologic estimates of projected grades, recoveries, capex, and operational costs on the primary project compared to the universe of operating mines. This value does not project overall anticipated company profitability.