Mr. Tom Drivas reports

APPIA SUCCESSFULLY CONCLUDES DIAMOND DRILLING PROGRAM INTERCEPTING POTENTIAL HIGHGRADE MINERALIZATION ON ALL THREE DRILLHOLES IN GOIAS, BRAZIL

Appia Rare Earths & Uranium Corp. has concluded its diamond drilling program in the SouthWest Extension zone of target IV at its ionic adsorption clay (IAC) project in the state of Goias, Brazil. The three drill holes were completed for a total of 450.7 metres and successfully intercepted the anticipated carbonatitic breccia and highly altered hard-rock zones in all three drill holes, indicating the continuation of the high-grade mineralization first identified in previously completed reverse circulation drill holes (see press releases dated Oct. 31, 2023, and Jan. 16, 2024).

Highlights:

• Hole PCH-DDH-002 -- total depth of 150.0 metres; regolith from zero to 37.4 metres; breccia from 37.4 metres to end of hole;
• Hole PCH-DDH-003 -- total depth of 147.7 metres; regolith from zero to 49.9 metres; breccia from 49.9 metres to end of hole;
• Hole PCH-DDH-004 -- total depth of 153.0 metres; regolith from zero to 45.0 metres, breccia from 45.0 metres to end of hole;
• The three drill holes presented substantial hydrothermal alteration and local sulphidation within the breccia.

Stephen Burega, president, stated: "The program successfully identified carbonatitic breccia below the previously reported high-grade clay material with up to 92,758 parts per million, or 9.3 per cent, and averaging over 27,000 parts per million, or 2.7 per cent, total rare earth oxide (TREO) over zero to 24 metres (see press release Jan. 16, 2024); and we anticipate a continuation of similar grades below this zone in the hard-rock mineralization at depth. This presents an exceptional opportunity to further showcase target IV and the entire PCH project for both IAC and primary mineralization potential."

The hydrothermalized carbonatitic breccia remains open at depth. Sampling is under way and assay results are expected in plus or minus 30 days.

On March 1, 2024, the company announced its maiden mineral resource estimate (MRE) on target IV and the Buriti zone, and the companion National Instrument 43-101 technical report on the PCH project was filed on April 16, 2024.

The technical information in this news release, including the information related to geology, drilling and mineralization, has been reviewed and approved by Andre L.L. Costa, Appia's vice-president, exploration, for Brazil, with more than 30 years of relevant experience. Mr. Costa is an Association of Professional Engineers and Geoscientists of Saskatchewan (APEGS) professional geoscientist (PGeo), a fellow of the Australian Institute of Geoscientists (FAIG), and a qualified person (QP) as defined by NI 43-101, Standards of Disclosure for Mineral Projects.

About Appia Rare Earths & Uranium Corp.

Appia is a publicly traded Canadian company in the rare earth element and uranium sectors. The company holds the right to acquire up to a 70-per-cent interest in the PCH ionic adsorption clay project (see June 9, 2023, press release) which is 40,963.18 hectares in size and located within the Goias state of Brazil (see Jan. 11, 2024, press 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 the surface rights to exploration for 94,982.39 hectares (234,706.59 acres) in Saskatchewan. The company also has a 100-per-cent interest in 13,008 hectares (32,143 acres), with rare earth elements and uranium deposits over five mineralized zones in the Elliot Lake camp in Ontario.

Appia has 149.4 million common shares outstanding and 170.8 million shares fully diluted.

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