IsoEnergy Ltd. has completed an expanded summer diamond drilling program totaling 10,159 metres across 26 holes at the Larocque East project in Saskatchewan, Canada, intersecting widespread radioactivity along the Hurricane South Trend.

The summer program was expanded from an initially planned 8,000 metres following encouraging results, bringing total drilling for 2026 to 16,963 metres in 43 holes. Out of the 26 holes completed, 18 intersected intervals at or above the cut-off threshold of >350 counts per second over 0.5 metres, 13 reached 1,000 counts per second or greater, and three holes recorded readings exceeding 35,000 counts per second.

Drilling focused primarily on testing the L fault zone within the South Trend. Hole LE26-250, drilled 75 metres east of previous winter drilling, intersected 11,075 counts per second over 3.5 metres, including a peak of 43,160 counts per second over a 0.5-metre interval. Additional strong intercepts included hole LE26-273, which returned an average of 14,135 counts per second over 3.0 metres, and hole LE26-254, which intersected 10,110 counts per second over 2.0 metres.

Larocque East serves as the company's flagship asset in the Athabasca Basin, hosting the high-grade Hurricane deposit, which contains an indicated mineral resource of 48.6 million pounds of U3O8 at 34.5% U3O8 and an inferred mineral resource of 2.7 million pounds of U3O8 at 2.2% U3O8. The project is situated approximately 40 kilometres northwest of the McClean Lake mill.

In August, IsoEnergy entered into an Exploration Agreement with Kineepik Métis Local Inc. to establish a framework for ongoing engagement, information sharing, and community participation across its Saskatchewan portfolio.

“Our Larocque project team and contractor partners safely completed an expanded summer program despite a temporary demobilization in June due to a nearby wildfire. Nearly half of the holes drilled in 2026 intersected elevated radioactivity. Multiple holes along the Hurricane South Trend returned strongly elevated results, including thirteen of the twenty-six summer holes at 1,000 cps or greater, both inside the Hurricane deposit footprint and along strike of it. Geochemical results are pending, and those assays, together with the geological observations from drill core, will shape how we define targets for 2027.”

— Dan Brisbin, Vice President Exploration

All drill core radioactivity results from the summer program are reported as total gamma counts per second measured using an RS-125 handheld spectrometer. All core samples have been submitted to SRC Geoanalytical Laboratories, with geochemical assay results pending for the summer campaign.

Read the full announcement: IsoEnergy Completes Summer Drilling at Larocque East, Intersecting Widespread and Strongest Radioactivity to Date Along the Hurricane South Trend