
Appia Rare Earths & Uranium Corp. (OTCQX: APAAF; CSE: API) offers dual exposure to Western supply-chain bottlenecks in magnet rare earth elements (NdPr, Dy, Tb) and high-grade nuclear fuel. In Goias State, Brazil, Appia's PCH Project hosts high-grade surface mineralization in ionic adsorption clays and alkaline complexes, while its Canadian portfolio spans the Alces Lake monazite rare-earth property and over 94,000 hectares of uranium exploration claims in Saskatchewan's prolific Athabasca Basin.

At a market capitalization of approximately $22.4 million on OTCQX, Appia trades at a steep discount to North American rare-earth and uranium peers such as Energy Fuels (NYSE: UUUU) and NioCorp (Nasdaq: NB), giving resource investors leveraged exposure to both South American ionic-clay REEs and Canadian uranium.
| Ticker | Company | Exchange | Market Cap | Primary Catalyst / Focus |
|---|---|---|---|---|
| APAAF (Subject) | Appia Rare Earths & Uranium Corp. | OTCQX | $22.4M | Ionic Clay Rare Earths (Brazil PCH) & Athabasca Uranium (Canada) (2026-10-15 OTCQX / 12g3-2(b)) |
| UUUU | Energy Fuels Inc. | NYSE American | $1.05B | U.S. uranium producer & White Mesa monazite rare-earth processing |
| NB | NioCorp Developments Ltd. | Nasdaq | $145M | Elk Creek critical minerals (niobium, scandium, magnet REEs) |
| MP | MP Materials Corp. | NYSE | $2.95B | Mountain Pass rare earth mining & NdPr magnet production |
| Form | Filing Date | Disclosure Scope | EDGAR Source |
|---|---|---|---|
| D | 2025-07-02 | SEC Form D (Items: 06b) | View EDGAR Filing → |
| D | 2024-11-12 | SEC Form D (Items: 06b) | View EDGAR Filing → |
| D | 2021-01-07 | SEC Form D (Items: 06b) | View EDGAR Filing → |
| D | 2020-11-06 | SEC Form D (Items: 06b) | View EDGAR Filing → |
| D/A | 2019-01-31 | SEC Form D/A (Items: 06b) | View EDGAR Filing → |
| D | 2019-01-30 | SEC Form D (Items: 06b) | View EDGAR Filing → |
| D | 2019-01-15 | SEC Form D (Items: 06b) | View EDGAR Filing → |
| D | 2018-08-03 | SEC Form D (Items: 06b) | View EDGAR Filing → |
Critical-minerals funds and OTCQX resource traders are watching updated metallurgical leach test results and NI 43-101 resource delineation at PCH in Brazil, as well as joint-venture and drill activity across Appia's Athabasca Basin uranium properties.
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