Mr. Tom Drivas reports

APPIA EXPANDS OTHERSIDE URANIUM PROPERTY BY STAKING TWENTY (20) ADDITIONAL MINERAL CLAIMS FOLLOWING POSITIVE MT SURVEY RESULTS

Appia Rare Earths & Uranium Corp. has staked 20 additional mineral claims surrounding its 100-per-cent-owned Otherside uranium property in Saskatchewan's Athabasca basin.

The expansion follows encouraging results from the three survey lines completed as part of Appia's Q1 (first quarter) 2026 Spartan magnetotelluric (MT) survey, which identified several geophysical and structural anomalies interpreted to represent a potential ingress/egress-style setting favourable for uranium deposition. This geological setting displays conceptual similarities to the structural controls associated with the high-grade McArthur River uranium deposit in Saskatchewan's Athabasca basin. This new expansion increases the total property size to 26 claims totalling 20,443.95 hectares.

The newly staked claims were selected to expand Appia's land position around prospective areas identified through the MT survey and the company's expanded interpretation of the geophysical datasets that may lead to new potential zones for uranium mineralization.

The strategic expansion was completed for the following reasons:

1. To provide additional ground northwest and southeast of the property, allowing the company to extend future geophysical coverage and further evaluate lines 1, 2 and 3, in both directions;
2. To secure several magnetic gradient and intensity changes east and southeast of the original property that may represent additional prospective geological and/or structural features warranting follow-up exploration.

Tom Drivas, chief executive officer of Appia, commented: "The positive MT results strengthen our confidence in the exploration potential at Otherside and highlight the importance of securing additional ground surrounding the property. By expanding northwest, east and southeast of the property to cover several anomalies warranting follow-up exploration, Appia has strengthened its position to evaluate the broader uranium potential identified through its recent work."

The additional claims provide Appia with greater flexibility to refine its regional geological interpretations, and to advance follow-up exploration for the planned ground MT and ambient noise tomography (ANT) surveys. The data from these surveys are planned to be integrated into a multidisciplinary 3-D geomodelling and used to refine target selection for Appia's planned 2027 drill campaign.

About the Otherside property

The Otherside property is strategically located within the prolific, uranium-bearing Athabasca basin of Saskatchewan, Canada. This area is renowned for its significant uranium deposits and conditions that have historically led to major high-grade uranium discoveries.

The Otherside property displays certain interpreted geophysical and structural characteristics comparable in concept with exploration vectors associated with high-grade Athabasca basin uranium systems, including McArthur River. Such signatures include long structural corridors hosting multiple conductors with associated magnetic gradients and gravity low areas.

Otherside's property area is 20,443.95 hectares and is 100 per cent owned by Appia.

Qualified person

The technical content in this news release was reviewed and approved by Dr. Irvine R. Annesley, PGeo, senior exploration adviser of Appia and a qualified person as defined by National Instrument 43-101.

About Appia Rare Earths & Uranium Corp.

Appia is a publicly traded Canadian company in the rare earth element and uranium sectors. The company holds a 25-per-cent interest in Ultra Rare Earth Inc. (Ultra USA), and Ultra USA indirectly holds a 100-per-cent interest in the Ultra Hard Rock and Ultra IAC projects, which total 42,932.24 hectares in size and are located within the state of Goias in Brazil (see June 1, 2026, news release).

The company is also focusing on delineating high-grade critical rare earth elements and gallium on the Alces Lake property and exploring for high-grade uranium in the prolific Athabasca basin on its Otherside, Loranger, North Wollaston and Eastside properties. The company holds exploration rights covering 102,450.74 hectares (253,161.29 acres) in Saskatchewan. The company also has a 100-per-cent interest in 14,483 hectares (35,788 acres), with rare earth elements and uranium deposits over five mineralized zones in the Elliot Lake camp in Ontario.

Appia has 194.9 million common shares outstanding, 211.3 million shares fully diluted.

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