Mr. Chris Frostad reports

PUREPOINT APPLIES INTEGRATED 3D MODELLING TO ADVANCE URANIUM TARGETING AND DEPLOYS EXPANDED MOBILEMT PROGRAM AT DORADO

Purepoint Uranium Group Inc. has released results from an integrated geophysical program combining airborne MobileMT (mobile magnetotelluric) surveys with advanced 3-D structural modelling, completed by Expert Geophysics Ltd., across three of its Athabasca basin projects. By integrating MobileMT data into detailed 3-D structural models, Purepoint has significantly improved its ability to identify and rank the subsurface structures most likely to host uranium mineralization, providing a more precise and capital-efficient framework for drill targeting. Building on these results, an expanded geophysical program will commence shortly at the Dorado project, ahead of the company's planned June, 2026, drill campaign.

"The airborne passive EM (electromagnetic) results are changing how we understand and target uranium systems across our portfolio," said Scott Frostad, vice-president, exploration, of Purepoint Uranium. "At Celeste East, the MobileMT data allowed us to view a detailed 3-D model of the conductive structures that can control mineralization. At Russell South, we were able to resolve basement EM features that had been completely masked by broad subsurface conductive packages. The 3-D structural modelling gives us a much clearer picture of where uranium is most likely to occur and how to target mineralization more effectively."

Highlights:

• Airborne MobileMT EM surveys and 3-D structural modelling at Celeste East, Russell South and Tabbernor completed; expanded surveys at Dorado and Henday Lake projects to commence later this month;
• 3-D structural modelling of MobileMT inversion data has materially improved subsurface interpretation, enabling Purepoint to define and rank drill targets with greater confidence before committing drill metres;
• At Celeste East, modelling reveals a folded conductive system with defined hinge zones -- structural geometries associated with uranium precipitation in Athabasca basin geological settings;
• At Russell South, 3-D modelling resolved basement structures beneath a shallow conductive layer that had masked targets from previous airborne EM surveys;
• At Tabbernor, the integrated interpretation has prioritized conductive corridors across a large land package for follow-up exploration;
• Integrated 3-D modelling framework enables more efficient allocation of drilling resources by allowing targets to be evaluated and ranked before mobilizing a drill rig.

Refining geological understanding at Celeste East

At Celeste East, MobileMT data have been integrated with historic geological data sets to produce a detailed 3-D model of the subsurface conductivity. The modelling, completed by Expert Geophysics, indicates that the previously interpreted east-west conductor is part of a broader folded conductive system within the project area.

The 3-D interpretation has identified a structural fold with defined hinge zones and limbs, significantly refining the geological framework. Fold hinge zones are of particular exploration interest as they can create fractured pathways and structural taps for hydrothermal fluids, conditions associated with uranium precipitation in Athabasca basin settings.

Creation of refined structural models enhances both drill targeting and the interpretation of future drilling results, allowing any mineralization encountered to be evaluated within a more complete structural context.

Celeste East is part of the Celeste Block project, a 50/50 joint venture with IsoEnergy.

Resolving subsurface targets at Russell South

At the 100-per-cent-owned Russell South project, previous geophysical surveys were limited by shallow subsurface conductive layers that absorbed and distorted traditional airborne EM signals, masking the underlying basement geology. MobileMT, which uses naturally occurring electromagnetic signals to map structures at depth, enabled the company to view conductive structures beneath this obstructive layer.

Subsequent 3-D structural modelling of the inverted MobileMT data clearly defines previously unrecognized basement features that were inaccessible through conventional airborne EM methods, generating a series of drill targets with well-defined structural context.

Prioritizing targets at Tabbernor

The 100-per-cent-owned Tabbernor project covers a large land position along a significant structural corridor in the Athabasca basin. MobileMT results, combined with 3-D structural modelling, have enhanced the definition of conductive trends across the project and established a ranked set of conductive corridors for follow-up exploration.

Next phase: Dorado and Henday Lake projects

Following the results at Celeste East, Russell South and Tabbernor, Purepoint will commence expanded MobileMT surveys at Dorado and Henday Lake projects.

At Dorado, the surveys are designed to produce the same quality of 3-D structural model that has proved effective across the portfolio, focused not only on the structural settings around the Nova discovery, but throughout all the other identified targets on the project. Integrating this model with existing drill results is expected to sharpen targeting and support more efficient deployment of drill resources ahead of the June, 2026, drill campaign.

About MobileMT

MobileMT is an airborne geophysical survey that maps subsurface resistivity and conductivity by measuring variations in naturally occurring EM signals over a broad frequency range. The method allows for deep penetration and, when combined with advanced inversion and 3-D modelling, provides a detailed representation of geological structures and conductive pathways often associated with mineralization.

Qualified person statement

The scientific and technical information contained in this news release relating to Purepoint was reviewed and approved by Scott Frostad, BSc, MASc, PGeo, Purepoint's vice-president, exploration, who is a qualified person (as defined in National Instrument 43-101, Standards of Disclosure for Mineral Projects).

About Purepoint Uranium Group Inc.

Purepoint Uranium Group is a uranium exploration company operating at the heart of the Athabasca basin -- the world's premier high-grade uranium district. Purepoint actively operates exploration programs on behalf of joint venture partnerships with three of the world's leading uranium companies: Cameco Corp., Orano Canada Inc. and IsoEnergy Ltd. This unique position alongside established uranium producers and developers reflects the quality of Purepoint's project portfolio and the calibre of its technical team.

Purepoint operates the Dorado project under a 50/50 joint venture with IsoEnergy Ltd., where the Nova discovery returned confirmed assays of up to 8.1 per cent U3O8 (triuranium octoxide) and a mineralized corridor now extends to one kilometre. The company also operates the Hook Lake and Smart Lake projects under joint venture with Cameco Corp. and Orano Canada Inc. Purepoint's wholly owned property portfolio includes additional exploration-stage uranium assets in the Athabasca basin region.

Additionally, Purepoint holds a promising VMS (volcanogenic massive sulphide) project optioned to and strategically positioned adjacent to Foran Mining Corp.'s McIlvenna Bay project.

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