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Appia announces Alces Lake 2022 prospecting program discovers Massive Monazite at the West Limb radioactive anomaly returning up to 36 wt.% TREO

Exploration Programs

Suite 500 - 2 Toronto St.

Toronto, ON, M5C 2B6

PH: 416 546-2707

FAX: 416 218-9772

Email: [email protected]

Website: www.appiareu.com

NEWS RELEASE

Appia announces Alces Lake 2022 prospecting program discovers

Massive Monazite at the West Limb radiometric anomaly returning

up to 36 wt.% TREO.

TORONTO, ONTARIO, December 6, 2022 - Appia Rare Earths & Uranium Corp. (the “Company”

or “Appia”) (CSE: API, OTCQX:APAAF, Germany: “A0I.F”, “A0I.MU”, “A0I.BE”) is excited to

announce the receipt of assay results from the 2022 prospecting program at its wholly owned Alces

Lake Rare Earth Elements Property, Northern Saskatchewan.

Highlights from the program include:

 36.11 wt.% TREO returned from samples of MASSIVE TO SEMI-MASSIVE MONAZITE

in outcrop at the West Limb anomaly, first discovered in 2022.

 3.34 wt.% TREO returned from a mineralized biotite shear zone at the West Limb anomaly

 4.34 wt.% TREO returned from VISIBLE MONAZITE in a shear zone at a previously

unexplored and un-named radiometric prospect south of the Magnet Ridge zone

 2.03 wt.% TREO returned from VISIBLE MONAZITE discovered in the Western Anomaly

Vice President Exploration Irvine Annesley says “Continuing to find new occurrences of visible and

massive monazite on the Alces lake property show the property’s amazing potential. Multiple results

exceeding one percent total rare earth oxides from new targets, not explored before 2022, tells us we are

just scratching the surface at Alces Lake. With so much area left to explore we are excited about what

remains to be discovered and new targets to be drilled”.

Following up on the success of Appia’s 2021 geological field work, a team of two field geologists conducted

reconnaissance prospecting of previously unexplored or underexplored radiometric Th (and U) anomalies

during the 2022 field season. The team documented 13 new occurrences of visible monazite across the

central portion of the Alces Lake property. Grab samples of anomalously radioactive bedrock were

collected whenever possible. Of 34 outcrop grab samples, four returned grades exceeding 2 weight percent

Total Rare Earth Oxides (wt.% TREO) and greater than half exceeded 0.1 wt.% TREO.

With another successful year following up on the results of Alces Lake 2021 airborne radiometric survey,

Appia has engaged a geophysical contractor to expand the survey coverage to all of the 35,682-hectare

Alces Lake property.

Appia CEO Tom Drivas said “The 2022 prospecting results have shown just how effective and valuable a

tool the airborne radiometric data is. After the 2021 survey guided our team to excellent results from new

targets for the second season in a row, including the stunning 36.11 wt.% TREO sample in the West Limb,

we have decided to expand the survey to cover the entire property. This is an important step for unlocking

the full potential of Alces Lake as part of an emerging Rare Earth Elements district”.

Figure 1. Results and locations of 2022 prospecting sampling. Point labels identify the calculated wt.% TREO of each outcrop

grab sample, as further elaborated on in Table 1 below.

Figure 2. Current coverage of airborne radiometrics at Alces Lake. Appia has engaged a geophysical contractor to extend the

survey to the complete extents of the claim group at the beginning of the 2023 work program.

Table 1. Locations and Calculated Wt. % TREO of 2022 outcrop grab samples as displayed in Figure 1. Wt.% TREO = ([CeO2 ppm]

+ [Dy2O3 ppm] + [Pr6O11 ppm] + [La2O3 ppm] + [Nd2O3 ppm] + [Sm2O3 ppm] + [Eu2O3 ppm] + [Gd2O3 ppm] + [Tb4O7 ppm] +

[Ho2O3 ppm] [Er2O3 ppm] + [Yb2O3 ppm] + [Lu2O3] ppm + [Y2O3 ppm] ) / 10000

Easting (m) Northing (m) Elevation (m) Sample ID Type TREO (wt.%)

666087 6617079 492 8233 Outcrop 36.114

668489 6615445 433 8221 Outcrop 4.338

666087 6617065 492 8219 Outcrop 3.343

663441 6614728 447 8236 Outcrop 2.030

661297 6610836 516 8214 Outcrop 0.729

661922 6611569 453 8213 Outcrop 0.391

667723 6616654 488 8228 Outcrop 0.349

661962 6611612 461 8212 Outcrop 0.287

661289 6610831 516 8215 Outcrop 0.237

661445 6611280 452 8217 Outcrop 0.219

668464 6615569 441 8220 Outcrop 0.206

666243 6617494 488 8235 Outcrop 0.204

667713 6616673 489 8227 Outcrop 0.181

661444 6611310 448 8216 Outcrop 0.178

661910 6611203 409 8208 Outcrop 0.149

667717 6616682 489 8224 Outcrop 0.146

664174 6611294 439 8205 Outcrop 0.135

666186 6617430 486 8234 Outcrop 0.121

666078 6616950 490 8218 Outcrop 0.098

664336 6611228 442 8207 Outcrop 0.078

668309 6615660 435 8223 Outcrop 0.072

666087 6616621 462 8230 Outcrop 0.058

661946 6613288 422 8232 Outcrop 0.052

662006 6611207 415 8209 Outcrop 0.048

663869 6610986 496 8201 Outcrop 0.041

664124 6611240 436 8204 Outcrop 0.041

667689 6616663 489 8225 Outcrop 0.030

663885 6610980 497 8202 Outcrop 0.029

667700 6616652 488 8226 Outcrop 0.027

668520 6615530 442 8222 Outcrop 0.025

663854 6612821 419 8229 Outcrop 0.021

664340 6611257 437 8206 Outcrop 0.015

662185 6611372 438 8211 Outcrop 0.014

664446 6612794 369 8231 Outcrop 0.011

About the Alces Lake Project

The Alces Lake project encompasses some of the highest-grade total and critical* REEs and gallium

mineralization in the world, hosted within several surface and near-surface monazite occurrences that

remain open at depth and along strike.

* Critical rare earth elements are defined here as those that are in short-supply and high-demand for use in permanent magnets and modern electronic

applications such as electric vehicles and wind turbines (i.e: neodymium (Nd), praseodymium (Pr), dysprosium (Dy) and terbium (Tb)).

Appia resumed drilling at Alces Lake in mid-March 2022, with significantly deeper holes compared to the

100 holes (approximately 8,076 metres) drilled in 2021. Total meterage in 2022 was 17,481. This was

designed to allow Appia to determine continuity at depth and along the identified REE mineralization trends

as the Company works towards an initial resource estimate in accordance with NI 43-101 for the area. With

high-grade REE mineralization now identified in many locations within an area covering approximately 27

km2 of the Alces Lake block. the Company believes the project has the potential to be a world-class source

of high-grade critical rare earth bearing monazite.

The Alces Lake project is located in northern Saskatchewan, the same provincial jurisdiction that is

developing a “first-of-its-kind” rare earth processing facility in Canada (currently under construction by the

Saskatchewan Research Council, with the first stage scheduled to become operational in early 2023). The

Alces Lake project area is 35,682 hectares (88,173 acres) in size and is 100% owned by Appia.

To ensure safe work conditions are met for the workforce, the Company has developed exploration

guidelines that comply with the Saskatchewan Public Health Orders and the Public Health Order Respecting

the Northern Saskatchewan Administration District in order to maintain social distancing and help prevent

the transmission of COVID-19.

Grab samples were collected with the use of a rock hammer where possible and sample selection location

was determined by the use of handheld scintillometer. The area of highest scintillometer readings may or

may not have been sampled. All lithogeochemical assay results of grab samples were provided by

Saskatchewan Research Council’s Geoanalytical Laboratory, an ISO/IEC 17025:2005 (CAN-P-4E)

certified laboratory in Saskatoon, SK. All analytical results reported herein have passed internal QA/QC

review and compilation.

The technical content in this news release was reviewed and approved by Dr. Irvine R. Annesley, P.Geo.,

Vice President Exploration 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

is currently focusing on delineating high-grade critical rare earth elements and gallium on the Alces Lake

property, as well as 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 110,997 hectares (274,280 acres) in Saskatchewan. The Company also has a 100% interest in 12,545

hectares (31,000 acres), with rare earth element and uranium deposits over five mineralized zones in the

Elliot Lake Camp, Ontario.

Appia has 128.1 million common shares outstanding, 151 million shares fully diluted.

Cautionary Note Regarding Forward-Looking Statements: This News Release contains forward-looking

statements which are typically preceded by, followed by or including the words “believes”, “expects”,

“anticipates”, “estimates”, “intends”, “plans” or similar expressions. Forward-looking statements are

not a guarantee of future performance as they involve risks, uncertainties and assumptions. We do not

intend and do not assume any obligation to update these forward- looking statements and shareholders are

cautioned not to put undue reliance on such statements.

Neither the Canadian Securities Exchange nor its Market Regulator (as that term is defined in the policies

of the CSE) accepts responsibility for the adequacy or accuracy of this release.

For further information, please contact:

Tom Drivas, CEO, Interim President and Director, (cell) 416-876-3957, or (email) [email protected]

Frank van de Water, Chief Financial Officer and Director, (tel) 416-546-2707, or (email)

[email protected]