Cosa launches 2,500-meter drilling at Darby uranium project in Canada

en.Wedoany.com Reported - On September 16, Canada's Cosa Resources announced the launch of a new round of drilling at the Darby uranium project in Saskatchewan, with plans to complete drill holes of up to 2,500 meters, focusing on testing the Gamma and Bravo mineralized trends. The Darby project is jointly held by Cosa and Denison Mines, with Cosa holding a 70% interest and serving as project operator, and Denison holding 30%. The project is located approximately 10 kilometers west of Cameco's Cigar Lake uranium mine.

This round of drilling will build on the results of the 2026 winter exploration program. In the Gamma area, previous drill hole DB24-41 identified a structural and alteration zone more than 100 meters wide, and discovered a graphitic basement fault, more than 30 meters of unconformity relief, and uranium geochemical indicators elevated to anomalous levels in the basement sandstone. Historical drill holes on the northern side of the project also previously intersected uranium mineralization near the Gamma trend, and this round of work will further trace the extension of related structures and mineralization.

In the Bravo area, drilling will continue along the mineralization direction of historical drill holes. Early exploration results show that graphitic structures, alteration, and uranium mineralization are present in this area, accompanied by more than 25 meters of unconformity relief. Cosa will focus on testing its extension along strike. The company believes that the magnetic low anomaly belt where Bravo is located extends northeastward to the Cigar Lake mining area, providing a basis for subsequent geological interpretation and selection of drilling targets.

The Darby project hosts multiple conductive anomaly belts and several historical weak uranium mineralization intersections, but a large number of strike segments had not previously been systematically drilled. Since 2025, Cosa has continued to reorganize historical drill hole, geophysical, and geochemical data, and after the 2026 winter drilling program further increased the priority of targets such as Gamma and Bravo. The company currently has approximately C$16 million in cash, which can cover this round of summer drilling and subsequent exploration plans in 2027.