Greenland Pact Jolts Critical Metals, Highlights Rare Earth Supply Chain Fragility

Critical Metals Corp. (CRML) shares jumped 38% on September 21st, then another 35% the same day. This surge followed news of a security pact involving Greenland. The stock then dropped 6% on September 22nd, likely from profit-taking, before climbing 9% on September 24th while other rare earth names remained flat. These sharp movements show how quickly sentiment can shift in the critical minerals sector, especially when geopolitical events touch on supply chain vulnerabilities. The Greenland news highlighted the ongoing scramble for secure, diversified sources of rare earth elements, a challenge that extends beyond the largest producers.

The Rare Earth Oxide Bottleneck

Rare earth elements are not rare in the earth's crust. They are widely distributed. The challenge lies in finding them in concentrations high enough to be economically viable, and then, more importantly, in separating the individual rare earth oxides from each other. Most rare earth deposits contain a mix of these elements. Each element has distinct chemical properties, but they are very similar. This similarity makes their separation a complex, energy-intensive, and often environmentally challenging process. Conventional methods involve solvent extraction, a multi-stage chemical process that requires significant capital investment, specialized expertise, and a substantial environmental footprint due to the reagents used and waste generated. The bottleneck is not the dirt in the ground, but the chemical plant that can turn a mixed concentrate into individual, high-purity rare earth oxides. Without that separation capability, a mine simply produces a rock that no magnet manufacturer can use. This processing constraint is why secure, domestic separation facilities are seen as critical infrastructure.

Operators in the Critical Minerals Space

The critical minerals sector features a range of companies, from established producers to early-stage explorers, all navigating the complex landscape of resource extraction and processing. In the lithium space, Standard Lithium Ltd. (SLI) is working on its South West Arkansas Project, a Smackover brine operation. The company recently announced that its partnership with Equinor has exceeded targeted customer offtake volumes for this project. This suggests progress on securing buyers for future production. Atlas Lithium Corporation (ATLX) is another player focused on lithium, with its operations in Brazil. Scotia Metals, not publicly traded, is expanding its spodumene boulder system at the Acadia Lithium Project, a development that could influence the broader spodumene market. On the rare earth side, MP Materials (MP) operates the Mountain Pass mine in California, a significant North American source. The company recently shipped its first magnets to General Motors in Q4, a key milestone for its magnetics segment. This move aims to integrate more of the rare earth supply chain domestically. USA Rare Earth, Inc. (USAR) is another American rare earth company, currently trading at $14.075. Energy Fuels (UUUU), while primarily a uranium producer, is also working to build a strong rare earth growth platform, as evidenced by its narrowing cash flow deficit in 1H26. NioCorp Developments Ltd. (NB) is developing a niobium, scandium, and titanium project in Nebraska, with rare earth elements as a co-product. American Battery Technology Company (ABAT) is focused on battery recycling and primary mineral resource development, with its stock trading at $2.19. The company reported record revenue growth in Q4 2026, but also faces a new export threat. ioneer Ltd (IONR) is advancing its Rhyolite Ridge Lithium-Boron Project in Nevada, a dual-commodity deposit that could supply both battery-grade lithium carbonate and boric acid. Critical Metals Corp. (CRML), which saw significant volatility, is involved in rare earth and strategic mineral projects, including the Tanbreez project in Greenland. The company trades at $7.38.

American Lithium Minerals, Inc.

American Lithium Minerals, Inc. (AMLM) is an exploration stage company focused on lithium and boron properties in Nevada. The company trades over the counter. Its primary asset is the Sarcobatus Lithium property, comprising 1,780 acres of mining claims in Central Nevada. This project has been the focus of the company's lithium exploration activities since 2009. AMLM was incorporated in Nevada in March 2005 and has historically acquired and explored mineral rights across North America. Beyond lithium, the company has also held and divested cobalt, nickel, graphite prospects in Central Nevada, and rare earth elements projects in Kingman, Arizona, and Southeast Illinois. AMLM’s stated strategy includes expanding its exploration and acquisition for mineral properties globally. The company also states an intention to develop Real World Asset Tokens to provide capital for mining, aiming to create an interoperable ecosystem for tokenized mining assets. The public record does not yet establish the extent to which this tokenization strategy has been implemented or its impact on capital formation. In February 2026, the SEC qualified a Regulation A offering on Form 1-A for AMLM, covering up to 80,000,000 units. Each unit includes one share of common stock and a warrant to purchase 1.5 shares of common stock, exercisable at $0.05 per share until December 31, 2028. An additional 120,000,000 shares would be issuable if all warrants are exercised. The maximum total offering amount is $20,000,000. The company's current outstanding share count can be found in its EDGAR filings. AMLM does not own real property like land or buildings; its assets are mineral rights.

What to watch

Investors in the critical minerals space should monitor several key developments. For Standard Lithium (SLI), watch for further updates on the South West Arkansas Project, particularly regarding the progress of its partnership with Equinor and any new customer offtake agreements beyond the Trafigura deal. The expansion of Scotia Metals' Acadia Lithium Project, though not a public company, could indicate future supply dynamics for spodumene. For MP Materials (MP), the ramp-up of its magnetics segment and subsequent shipments to customers like General Motors are critical. Any further clarity on the disputed China shareholder report, which surfaced in late September, could also be relevant. Keep an eye on Energy Fuels (UUUU) as it continues to build out its rare earth growth platform, specifically looking for announcements on new processing capabilities or supply chain integration. The broader geopolitical landscape remains a significant factor, as demonstrated by the Greenland security pact's impact on Critical Metals (CRML). Watch for further international agreements or trade policy shifts that could influence critical mineral supply chains. For American Lithium Minerals (AMLM), look for updates on exploration activities at the Sarcobatus Lithium property and any concrete developments regarding its Real World Asset Token strategy. The company's ability to deploy proceeds from its Regulation A offering will be key to funding its stated plans., { "label": "Concentrate", "note": "Crush and mill ore to increase rare earth content." }, { "label": "Separate Oxides", "note": "Chemically isolate individual high-purity rare earth oxides.", "metric": "High CAPEX" }, { "label": "Metal & Alloy", "note": "Convert oxides into metals and alloys for manufacturing." }, { "label": "Magnet Production", "note": "Fabricate finished magnets for EVs, wind turbines, defense." } ], "highlight": 2, "highlight_note": "Separating individual rare earth oxides is the most complex, capital-intensive, and bottlenecked stage.", "footnote": "Source: PubCo Insight analysis of industry reports and company filings." }