IsoEnergy & Purepoint Report High-Grade Uranium Discovery at Nova with Assays Up to 5.4% U₃O₈

• IsoEnergy and Purepoint have confirmed high-grade uranium mineralization at their Nova Discovery with assays up to 5.4% U₃O₈ from initial drill holes at the Dorado joint venture project.
• Sample PG25-05 returned 1.0 metre grading 2.2% U₃O₈, including 0.3 metres at 5.4% U₃O₈, while PG25-04 returned 0.6 metres grading 1.0% U₃O₈.
• Drill hole PG25-07 recorded the strongest radioactivity readings to date at 110,800 counts per second, with assay results still pending from this potentially significant intersection.
• The mineralization is hosted in a steeply dipping basement fault structure that remains open to the northeast, indicating potential for expansion through follow-up drilling.
• The companies plan winter drilling programs to extend the mineralized trend northeast when frozen ground enables land-based access to the remote Saskatchewan location.

IsoEnergy Ltd. (NYSE American: ISOU | TSX: ISO) and Purepoint Uranium Group Inc. (TSXV: PTU | OTC: PTUUF) have announced significant high-grade uranium assay results from their joint venture Dorado project in Saskatchewan's prolific Athabasca Basin. IsoEnergy operates as a leading uranium development company focused on the Athabasca Basin, while Purepoint specializes in uranium exploration with a portfolio of projects in this world-renowned uranium district. The companies' 50/50 joint venture encompasses more than 98,000 hectares of prime uranium exploration ground, representing one of the largest uranium exploration partnerships in the region.

The announcement of grades up to 5.4% U₃O₈ at the Nova Discovery validates the significance of the Q48 target area and demonstrates the continued potential for high-grade uranium discoveries in the Athabasca Basin, a region that hosts some of the world's highest-grade uranium deposits.

Discovery Details & Assay Results

The initial assay results from the Nova Discovery represent a significant milestone for the joint venture partnership. The companies completed eight diamond drill holes during their summer program, with results now available from two of the most promising intersections.

The standout result came from drill hole PG25-05, which returned exceptional grades in a concentrated zone. The hole intersected 1.0 metre grading 2.2% U₃O₈ between 328.9 and 329.9 metres depth, with a higher-grade core section of 0.3 metres at 5.4% U₃O₈. This represents some of the highest-grade uranium mineralization reported in recent Athabasca Basin discoveries.

Chris Frostad, President & CEO of Purepoint Uranium, emphasized the significance of these results:

"These assays validate the significance of the mineralization first intersected at Q48. The grades confirm what we observed in the core and the strong radioactivity readings, establishing Nova as a robust uranium-bearing structure. With PG25-07 still to be assayed, we are continuing to build on the early success of this program."

Drill hole PG25-04 also returned significant results, with 0.6 metres grading 1.0% U₃O₈ between 386.3 and 386.9 metres depth. Additionally, this hole encountered a deeper mineralized interval of 0.4 metres grading 0.15% U₃O₈ starting at 409.1 metres depth, suggesting the potential for multiple mineralized zones within the structural system.

The geological setting of the mineralization provides important context for these results. The uranium is hosted within a steeply dipping, brittle basement fault structure that appears to remain open to the northeast. This geological configuration suggests potential for significant extension of the mineralized system through additional drilling.

Technical Analysis & Geological Significance

The technical details of the Nova Discovery provide important insights into its geological significance and exploration potential. Drill hole PG25-07A represents a critical data point for understanding the scope of the mineralized system. This hole recorded exceptional downhole gamma readings, with an average of 82,300 counts per second over 0.6 metres and a peak reading of 110,800 counts per second.

Philip Williams, CEO and Director of IsoEnergy, highlighted the systematic approach being employed:

"Each new hole is giving us a clearer picture of the mineralized system at Nova. The assays from PG25-04 and PG25-05 confirm the strength of the mineralization and reinforce the importance of this discovery. With PG25-07 delivering the highest radioactivity readings so far, we believe its assays will provide valuable insight into how this discovery is evolving."

The geological logging of PG25-07A indicates significant mineralization extending over a 14.0-metre interval, averaging 11,100 counts per second. The mineralization begins within granitic gneiss at 382.3 metres depth and extends into pelitic gneiss to 396.3 metres depth. This represents a much thicker mineralized interval compared to the initial discovery holes, suggesting potential for substantial tonnage if the high grades are confirmed by pending assay results.

The structural geology of the Nova Discovery indicates a complex mineralized system. The primary mineralized structure is hosted in sheared, reddish-brown altered granitic gneiss containing pitchblende, the primary uranium mineral in Athabasca Basin deposits. A second strongly mineralized interval occurs within pelitic gneiss core, indicating multiple lithological hosts for uranium mineralization within the structural system.

The northeast trend of the mineralized structure remains open, indicating significant potential for expansion through additional drilling. The companies plan follow-up drilling to extend the mineralized trend northeast during the winter drilling season when frozen ground conditions enable land-based access to the remote location.

Regional Context & Exploration Program

The Dorado project represents the flagship asset of the IsoEnergy-Purepoint joint venture, encompassing former properties including Turnor Lake, Geiger, Edge, and Full Moon. The project benefits from favorable geological conditions, including graphite-bearing lithologies and fault structures that are conducive to uranium deposition in the Athabasca Basin setting.

Recent drilling by IsoEnergy east of its Hurricane Deposit has intersected strongly elevated radioactivity in multiple holes, confirming the continuity of the fertile graphitic rock package across the region. This regional context suggests significant potential for additional high-grade discoveries beyond the Nova Discovery itself.

The shallow unconformity depths across the Dorado property, typically between 30 and 300 metres, provide operational advantages for the exploration program. These shallow depths allow for highly efficient drilling operations and enable rapid follow-up on promising results, factors that enhance the economic attractiveness of the exploration program.

The current drilling program includes multiple target areas beyond the Q48 zone where Nova was discovered. The Q2 target area has been tested with two drill holes, while drilling is currently progressing within the Turaco target area. This multi-target approach maximizes the potential for additional discoveries across the large joint venture property package.

Investment Implications & Future Catalysts

The Nova Discovery represents a significant development for both IsoEnergy and Purepoint, validating their joint venture approach and demonstrating the continued potential for high-grade uranium discoveries in the Athabasca Basin. The grades reported, particularly the 5.4% U₃O₈ intersection, compare favorably with other recent discoveries in the region and established deposits.

Several near-term catalysts may drive continued investor interest in the joint venture. The pending assay results from drill hole PG25-07, which recorded the strongest radioactivity readings in the program, represent the most immediate catalyst. Given the exceptional downhole gamma readings over a substantial interval, these results could significantly enhance understanding of the discovery's scale and grade distribution.

The planned winter drilling program to extend the mineralized trend northeast provides another important catalyst. The structural geology indicates the mineralized system remains open in this direction, and successful extension drilling could substantially increase the resource potential of the Nova Discovery.

The broader Dorado project offers multiple additional exploration targets beyond Nova, providing numerous opportunities for discovery success across the large joint venture property package. The systematic exploration approach being employed suggests potential for additional discoveries as the program advances.

For Investors

The Nova Discovery at the Dorado joint venture represents a significant achievement for IsoEnergy and Purepoint, demonstrating the continued potential for high-grade uranium discoveries in Saskatchewan's Athabasca Basin. The initial assay results, including grades up to 5.4% U₃O₈, validate the geological targeting approach and establish Nova as a robust uranium-bearing structure with expansion potential.

For investors evaluating IsoEnergy and Purepoint, the Nova Discovery provides several compelling investment themes. The partnership approach leverages the technical expertise and financial resources of both companies while spreading exploration risk across a large, highly prospective property package. The systematic drilling approach is building a comprehensive understanding of multiple target areas, maximizing the potential for additional discoveries.

The technical quality of the Nova Discovery, combined with pending assay results from the most promising drill hole and planned expansion drilling, suggests multiple near-term catalysts that could drive continued value creation for shareholders of both joint venture partners. The shallow unconformity depths and favorable logistics provide operational advantages that enhance the economic attractiveness of successful discoveries.

As the uranium market continues to show strength driven by nuclear energy demand and supply constraints, high-grade discoveries like Nova in established uranium districts represent particularly attractive investment opportunities. The joint venture approach employed by IsoEnergy and Purepoint provides investors with leveraged exposure to one of the world's premier uranium exploration programs in the prolific Athabasca Basin.