Purepoint intersects 7.4 m averaging 8,760 CPS at unconformity, Q24 Dorado

Toronto, Ontario--(Newsfile Corp. - September 17, 2026) - Purepoint Uranium Group Inc. (TSXV: PTU) (OTCQB: PTUUF) ("Purepoint") today reported radiometric results from the completed 2026 summer drill program at the 50/50 Dorado Joint Venture ("Dorado" or the "Project") with IsoEnergy Ltd. (NYSE American: ISOU) (TSX: ISO), located in Saskatchewan's Athabasca Basin. Drill hole PG26-11, the first hole completed at the Q24 target, intersected 7.4 metres averaging 8,760 counts per second ("cps") across the unconformity, including 0.5 metres averaging 38,710 cps. The Q24 radioactive interval occurs primarily within strongly altered and structurally disrupted basement rocks, at a separate target area from both Nova and Q23.

"The first hole at Q24 delivered exactly what we look for in this part of the Athabasca Basin; strong radioactivity at the unconformity, significant alteration, structural disruption and graphitic basement rocks," said Chris Frostad, President & CEO of Purepoint. "These geological features have guided uranium exploration in this district for decades and seeing them come together in the first hole at a new target area is really encouraging. Q24 is separate from both Nova and Q23, giving us an important new area for follow-up drilling at Dorado."

Highlights

PG26-11, the first hole drilled at Q24, intersected 7.4 metres averaging 8,760 cps from 284.1 to 291.5 metres at the unconformity, including 0.5 metres averaging 38,710 cps. The maximum downhole probe reading is 50,110 cps.

The radioactive interval occurs within strongly clay-sericite-chlorite altered basement rocks (pelitic gneiss) having local fault brecciation. Chalcopyrite veining was observed 3.3 metres farther downhole, providing additional evidence of hydrothermal activity.

Q24 is a separate target from Nova and Q23, adding another priority area for follow-up drilling at Do