Mr. Tom Drivas reports

APPIA BEGINS DIAMOND DRILLING TO EXTEND AND DELINEATE THE HIGHGRADE MINERALIZATION AT PCH TARGET IV IN GOIAS STATE, BRAZIL AND ANNOUNCES ACCELERATION OF 2024 WARRANTS

Appia Rare Earths & Uranium Corp. has commenced its diamond drilling program in the southwestern corner of Target IV. The goal of this program is to extend and delineate the high-grade rare earth element mineralization (high-grade zone) to the southwest, to the northwest and at depth, identified in the previous three diamond drill holes (see Jan. 22, 2025, press release), associated with a carbonatitic breccia intrusion.

Tom Drivas, chief executive officer, stated: "We have been eager to get a drill back to the high-grade mineralized area discovered in the southwest part of Target IV zone since the discovery was first made at the beginning of 2024. This extraordinary mineralization included 92,758 ppm or 9.28 per cent TREO across two metres (see Jan. 16, 2024, news release) and the follow-up November, 2024, three diamond drill holes with all three DD holes intersecting high-grade TREO over the entire three holes from surface to 150-metre depths (see Jan. 22, 2025, new release). Appia is continuing the drilling program in the Ionic Clay zone with two auger drills, assay results for which will be released once received and analyzed by the company."

The diamond drill program will include at least 600 metres of drilling in three 200-metre drill holes and is expected to be completed within a plus or minus 25-day timeline. Drilling will continue if holes reach target depth and are still in mineralization.

On March 1, 2024, the company announced its maiden mineral resource estimate on Target IV and the Buriti zone (refer to the March 10, 2025, press release), and the companion National Instrument 43-101 technical report on the PCH project was filed on April 16, 2024 (see the April 16, 2024, press release). An updated mineral resource estimate will be prepared upon completion of the current diamond drilling and auger drilling programs. The updated MRE is anticipated to be completed by the end of first quarter 2026.

The technical information disclosed in this news release has been reviewed and approved by Don Hains, PGeo, a qualified person as defined by National Instrument 43-101.

The company also wishes to announce that the expiry date of the remaining common share purchase warrants of the company exercisable at 15 cents per share that were issued on Oct. 29, 2024 (see news release dated Oct. 30, 2024), has been accelerated as a result of the fact that the company's common shares have closed at a price of at least 25 cents for 10 consecutive trading days as of Oct. 20, 2025. A total of 456,250 of the accelerated warrants have been exercised. The remaining 12.15 million accelerated warrants will expire if unexercised by 5 p.m. on Nov. 19, 2025.

Additionally, the company wishes to announce that, further to its press releases of Sept. 2, 2025, Sept. 23, 2025, Oct. 1, 2025, Oct. 2, 2025, Oct. 6, 2025, Oct. 8, 2025, Oct. 14, 2025, and Oct. 16, 2025, Ultra Rare Earth Inc. is proceeding with the transactions contemplated by the binding term sheet dated Aug. 29, 2025, between the company, Beko Invest Ltd., Antonio Vitor Jr. and Ultra. On completion of the transaction, Ultra will acquire a 50-per-cent interest in Appia Brasil Rare Earths Mineracao Ltda., the Brazilian company that holds the PCH project located in the Tocantins structural province of the Brasilia fold belt, Goias state, Brazil.

Ultra delivered notice to Appia, Mr. Vitor and Beko that it intends to close the transaction, and closing of the transaction is scheduled for Oct. 31, 2025. One of the terms of the transaction requires Ultra to invest $2-million (U.S.) into an Appia unit private placement comprising 5.52 million units priced at 50 cents per unit (based upon a U.S.-dollar-to-Canadian-dollar exchange rate of $1.38) with each unit consisting of one common share, priced at 50 Canadian cents, and one-half of a warrant, with each full warrant exercisable at 70 Canadian cents for 24 months. The funds will be used by Appia for general working capital. See the Sept. 2, 2025, press release for a full list of the terms applicable to the transaction.

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 an up-to-70-per-cent interest in the PCH ionic adsorption clay project (see June 9, 2023, press release), which is 42,932.24 hectares in size and located within the state of Goiasin in Brazil (see Jan. 11, 2024).

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 element and uranium deposits over five mineralized zones in the Elliot Lake camp, Ontario.

Appia has 177 million common shares outstanding and 213.9 million shares fully diluted.

We seek Safe Harbor.