Premier American Uranium expands uranium mineralization at Kaycee, Wyoming

TORONTO, June 17, 2026 (GLOBE NEWSWIRE) -- Premier American Uranium Inc. (“PUR”, the “Company” or “Premier American Uranium”) (TSXV: PUR) (OTCQB: PAUIF) is pleased to announce preliminary results from the 2026 exploration drilling program at the Company’s wholly-owned Kaycee Project (“ Kaycee ” or the “ Project ”), located in the Powder River Basin (“ PRB ”) of northeastern Wyoming. Drilling commenced at the Outpost target in May 2026. To date, 19 drillholes have been completed for a total of 17,100 ft of drilling.

A total of 100,000 ft of drilling is currently planned for the 2026 season, with specific focus on the Outpost, Rustler, and Stampede exploration areas (Figure 1). Highlights Infill and step-out drilling in the Outpost (Figure 2) area has expanded and further defined the zone of known uranium mineralization. Nineteen conventional mud rotary holes have been completed for a total of 17,100 ft of drilling in 2026 (Figure 1).

Seven of the 19 drill holes intersected uranium mineralization at grades of 0.02% eU₃O₈ or higher (see Table 1 for significant intercepts). Drilling results to date provide valuable lithologic information to support geologic interpretation and guide future exploration plans. Drilling has identified two target sand units within the lower Wasatch Formation, both of which are host to uranium mineralization.

The lower Wasatch Formation is also the principal host of uranium mineralization in the Pumpkin Buttes district, just east of the Kaycee Project area. In conjunction with the drilling program, the Company engaged a professional surveying contractor to complete a Project-wide drillhole collar and elevation survey. This survey work is complete, and the results will be used to support future mineral resou