Greenland Pact, Romanian Refinery Point to New Rare Earth Supply Routes

Critical Metals (CRML) surged 38% on September 21st, driven by news of a Greenland security pact and the company's low-waste Romanian refinery plan. The proposed refinery aims to process rare earths from eudialyte, a complex mineral, and targets $2.2 billion in revenue. This development points to a significant shift in the critical minerals sector, where companies are increasingly seeking to unlock new sources and refine materials closer to demand centers, bypassing established, often geopolitically sensitive, supply routes.

The Mechanism: Unlocking Rare Earths from Eudialyte

Extracting rare earth elements (REEs) from eudialyte presents a distinct processing challenge compared to conventional monazite or bastnäsite ores. Eudialyte, a complex zirconium silicate mineral, contains a wide array of elements, including REEs, zirconium, and niobium. The key difficulty lies in the selective separation of these valuable elements without generating excessive waste or requiring high energy inputs. Traditional acid leaching methods, while effective for some REE ores, can be less efficient and more environmentally impactful with eudialyte due to its complex mineralogy. The "low-waste" refinery approach, as described by Critical Metals, suggests a hydrometallurgical process designed to minimize environmental footprint. This typically involves carefully controlled chemical dissolution, followed by solvent extraction or ion exchange techniques. Solvent extraction, for example, uses organic solvents to selectively pull specific rare earth ions from an aqueous solution. Achieving high purity and yield for individual rare earth oxides, like neodymium and praseodymium, from a complex feed like eudialyte requires precise control over pH, reagent concentrations, and temperature. The commercial viability hinges on the efficiency of this separation, the cost of reagents, and the ability to manage or valorize byproducts. A failure in selective separation would mean lower purity, higher refining costs, and reduced market value for the final rare earth products.

Companies Pursuing Diversified Rare Earth and Lithium Sources

The push for new supply chains and processing technologies is evident across the small and micro-cap critical minerals landscape. Companies are differentiating themselves by targeting specific geographies, mineral types, or refining innovations. In the rare earth space, USA Rare Earth, Inc. (USAR, $15.18) has been developing its Round Top project in Texas, which aims to produce a range of heavy and light rare earth elements from a rhyolite deposit. The company's strategy involves an integrated mine-to-magnet supply chain. NioCorp Developments Ltd. (NB, $3.54) focuses on its Elk Creek project in Nebraska, which targets niobium, scandium, and titanium, with a significant rare earth component. NioCorp's plan involves a multi-product facility designed to extract these critical materials from a carbonatite deposit. While not directly involved in eudialyte processing, these companies represent the broader effort to establish domestic rare earth production and processing capacity. MP Materials (MP), a larger player, continues to advance its integrated rare earth processing at Mountain Pass, California, with recent news covering its magnetics segment and preparations for GM deliveries. On the lithium side, companies are exploring diverse deposit types and extraction methods. Standard Lithium Ltd. (SLI, $1.86) is advancing its direct lithium extraction (DLE) projects in Arkansas, focusing on extracting lithium from brine resources. The company recently saw a positive preliminary economic assessment for its Texas Lithium Project. ioneer Ltd (IONR, $3.31) is developing the Rhyolite Ridge project in Nevada, a unique lithium-boron deposit. This project aims to produce both lithium carbonate and boric acid, leveraging the co-occurrence of these critical minerals. Atlas Lithium Corporation (ATLX, $2.70) is focused on hard rock lithium exploration in Brazil, specifically targeting spodumene deposits. These companies illustrate the variety of approaches to securing lithium supply, from brines to hard rock and co-product opportunities. American Battery Technology Company (ABAT, $2.26) recently reported record revenue growth, focusing on battery recycling and primary lithium extraction from Nevada claystone.

American Lithium Minerals, Inc.

American Lithium Minerals, Inc. (AMLM, $0.0698) operates as an exploration stage company, pre-revenue, with a stated focus on lithium and boron properties in Nevada. The company was incorporated in Nevada on March 10, 2005. Its primary project is the Sarcobatus Lithium property, which comprises 1,780 acres of mining claims located in Central Nevada. The company's filings indicate a history of acquiring and divesting mineral rights, including past cobalt, nickel, and graphite prospects in Central Nevada, and rare earth elements projects in Kingman, Arizona and Southeast Illinois. AMLM's most recent substantive filing, a Regulation A offering circular qualified on February 4, 2026, outlines its intention to expand exploration and acquisition for mineral properties worldwide. This filing also details a plan to develop the use of Real World Asset Tokens to provide capital for mining. The offering covers up to 80,000,000 units, each including one share of common stock and a warrant to purchase 1.5 shares of common stock at $0.05 per share until December 31, 2028. An additional 120,000,000 shares are issuable upon full exercise of these warrants. The company's filings do not yet establish a measured or indicated resource for its Sarcobatus property. AMLM's long-term vision, as stated in the offering circular, involves creating an interoperable ecosystem for asset acquisition, tokenization, and trading, merging public markets with blockchain technology. The company does not own any real property such as land or buildings.

What to watch

The critical minerals sector will see several key developments unfold in the coming months. For Critical Metals (CRML), watch for specific updates on the permitting process for its Romanian refinery, including environmental impact assessments and regulatory approvals. Details on the metallurgical flow sheet for eudialyte processing and any pilot plant results will be crucial. For ioneer Ltd (IONR), the progress on its Rhyolite Ridge project in Nevada, particularly construction timelines and any further offtake agreements for lithium and boron products, will be important. Standard Lithium Ltd. (SLI) investors should monitor updates on its DLE projects in Arkansas, including pilot plant performance and progress toward commercial-scale facilities. For USA Rare Earth (USAR) and NioCorp Developments (NB), look for updates on project financing, construction progress, and any announcements regarding strategic partnerships or customer commitments for their respective rare earth and critical mineral products. American Battery Technology Company (ABAT) will likely provide further details on its battery recycling operations and the advancement of its primary lithium extraction technology. Any new filings from American Lithium Minerals (AMLM) detailing exploration results or progress on its tokenization strategy would be notable., { "label": "Crushing & Grinding", "note": "Physical preparation of ore for chemical processing." }, { "label": "Hydrometallurgical Process", "note": "Controlled chemical dissolution and leaching of metals.", "metric": "Low-Waste Target" }, { "label": "Selective Separation", "note": "Solvent extraction or ion exchange to isolate REEs.", "metric": "Purity >99%" }, { "label": "Refined REE Oxides", "note": "High-purity rare earth oxides for magnet & tech industries." } ], "highlight": 3, "highlight_note": "Efficient, low-waste separation of REEs from complex eudialyte is the core challenge and value driver.", "footnote": "Critical Metals (CRML) Romanian Refinery Plan, Sep 2026" }