IsoEnergy and Purepoint Report Assay Grades of up to 5.4% U₃O₈ from Initial Holes at the Nova Discovery on the Dorado JV

TORONTO, Aug. 6, 2025 /CNW/ - IsoEnergy Ltd. (NYSEAmerican:ISOU) (TSX:ISO.TO) ("IsoEnergy") and Purepoint Uranium Group Inc. (TSXV:PTU.VN) (OTC:PTUUF) ("Purepoint") today announced that initial assays from the first two discovery drill holes completed at their joint venture Dorado project's ("Dorado" or the "Project") Nova Discovery in Saskatchewan's Athabasca Basin have confirmed the presence of high-grade uranium mineralization (Figure 1). Strong assay results from PG25-04 and PG25-05, based on select samples rushed through the lab, validate the significance of the mineralization encountered at the Q48 target. The PG25-05 sample returned 1.0 metre grading 2.2% U₃O₈, including 0.3 metres at 5.4% U₃O₈, while PG25-04 samples returned 0.6 metres grading 1.0% U₃O₈. Assays from PG25-07, which intersected a much thicker mineralized interval and recorded the strongest radioactivity readings to date (peaking at 110,800 counts per second ("CPS") from the downhole probe), are still pending and expected in the coming weeks.