In a significant step toward reducing dependence on China for critical defense and technology materials, U.S.-based REalloys Inc. (NASDAQ: ALOY, via merger) has secured a major offtake agreement for heavy rare earth elements from Greenland’s Tanbreez deposit. The deal, announced in October 2025, covers 15% of projected production from Critical Metals Corp.’s (NASDAQ: CRML) Tanbreez project under a multi-year (initially reported as 10- to 15-year) arrangement, supplying up to 6.75 million metric tons of rare earth concentrate.
This agreement builds on an earlier pact with Ucore Rare Metals, bringing committed offtake for U.S. customers to approximately 25% of Tanbreez’s near-term output. It arrives as the U.S. Department of Defense prepares to enforce strict prohibitions on Chinese-origin rare earth materials in defense contracts starting January 1, 2027.
The Strategic Imperative: Breaking China’s Grip
China dominates the global rare earth supply chain, controlling over 90% of heavy rare earth processing and the vast majority of high-performance permanent magnet production. Elements like dysprosium and terbium essential for high-temperature magnets that maintain performance in extreme conditions are particularly vulnerable. These magnets power critical components in F-35 fighter jet actuators and guidance systems, U.S. Navy destroyer electric motors, hypersonic missile seekers, advanced drone propulsion, and next-generation electric vehicle drivetrains.
Heavy rare earth elements (HREEs) are scarcer and more valuable than light rare earths. China’s near-monopoly on their refining and separation creates acute national security risks for the West. Export controls, geopolitical tensions, and supply chain weaponization have underscored the urgency of diversification. The U.S. has responded with policy measures, including expanded DFARS rules that prohibit acquisition of magnets or materials where any stage from mining through metallization occurs in China (or Russia, Iran, North Korea). Traceability requirements extend deep into supply chains, pressuring defense contractors like Lockheed Martin and Northrop Grumman to qualify non-Chinese sources rapidly.
REalloys CEO and executives have emphasized the deal’s alignment with this timeline. “The Tanbreez project presents a remarkable opportunity… vital to the defense industrial base,” noted REalloys leadership. Critical Metals CEO Tony Sage highlighted the partnership’s role in building a resilient North American chain.
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Tanbreez: A Geological Powerhouse in Greenland
The Tanbreez (Kringlerne) project in southern Greenland stands out as one of the world’s largest known rare earth deposits. Managed estimates place the resource at around 4.7 billion tonnes of mineralized kakortokite host rock, containing approximately 28.2 million tonnes of total rare earth oxides (TREO). Critically, HREEs comprise about 27% (or more in some zones) of the REE content far higher than typical deposits and a key differentiator from light-REE-heavy projects elsewhere.
The deposit features low uranium and thorium levels, easing environmental and regulatory hurdles. It also contains valuable co-products like zirconium, niobium, tantalum, and hafnium materials vital for hypersonic weapons and other applications. Ore grades are modest (around 0.37-0.6% TREO), but the sheer scale, high HREE ratio, and favorable mineralogy (primarily eudialyte, amenable to magnetic separation) support long-life production potential with year-round deep-water fjord access for shipping.
Critical Metals has advanced ownership to over 92% through staged acquisitions and Greenland government approvals. A $30 million acceleration program in early 2026 aims to de-risk and fast-track development toward commercial production, potentially aligning with the 2027 defense deadline. Pre-production samples and offtake testing are underway with partners.
REalloys: Building the Full Mine-to-Magnet Chain
REalloys positions itself as one of the few U.S. companies with integrated midstream and downstream capabilities. Headquartered in Euclid, Ohio, the company operates facilities supplying the Defense Logistics Agency and DOE labs. Its strategy encompasses feedstock from multiple allied sources including Tanbreez (Greenland), Hoidas Lake (Canada), Montana, Brazil, and Kazakhstan plus domestic processing, metallization, alloying, and magnet manufacturing.
Key initiatives include partnerships with the Saskatchewan Research Council for midstream processing, expansions in Ohio, and innovations avoiding hazardous chemicals like hydrofluoric acid in some processes. The company has secured financing support, such as a $200 million letter of interest from the U.S. EXIM Bank, and high-profile board additions including former defense officials like Gen. Jack Keane and GM Defense’s Stephen duMont. A merger with Blackboxstocks facilitated its NASDAQ listing.
REalloys targets commercial-scale production of dysprosium, terbium, neodymium-praseodymium metals, and NdFeB magnets by early 2027, directly addressing the Pentagon’s mandate.
Broader Context: Global Race for Supply Security
This deal fits into a wider Western effort. The U.S., EU, Japan, and allies have invested billions in alternative supply chains. MP Materials’ Mountain Pass operations and downstream efforts, Lynas’ expansions in Australia and the U.S., and projects in Canada and Africa represent parallel initiatives. However, heavy rare earth separation and magnet production remain bottlenecks outside China.
Greenland’s strategic location enhances the appeal. As an autonomous territory of Denmark (a NATO ally), it offers a secure, rules-based jurisdiction amid Arctic competition. Environmental stewardship is emphasized, with hydroelectric potential for lower-carbon operations.
Challenges persist: permitting, infrastructure, technical processing complexities for HREEs, capital intensity, and market volatility. Skeptics question whether 2027 targets are realistic given historical delays in rare earth projects. Yet, policy tailwinds, defense urgency, and private-sector momentum are accelerating progress.
Implications for Defense, Technology, and Geopolitics
Secure HREE supply directly impacts military readiness. Modern weapons systems consume significant rare earth content; disruptions could constrain production of fighters, missiles, submarines, and electronics. Beyond defense, electrification (EVs, wind turbines) and robotics depend on these materials. A diversified chain supports economic resilience and reduces Beijing’s leverage in trade or conflict scenarios.
For Greenland and Critical Metals, the project promises economic benefits, jobs, and infrastructure in a remote region, balanced with environmental safeguards. For REalloys and the U.S., it represents a cornerstone of “friend-shoring” strategy.
Outlook
The REalloys-Critical Metals agreement signals tangible advancement in Western rare earth independence. With production ramp-up targeted for 2027, success could catalyze further investment and de-risk additional projects. Failure to meet timelines, however, would heighten vulnerabilities as global demand surges.
As Mario Nawfal and industry observers note, the “mineral war” is underway. Deals like this one illustrate how the West is responding not with rhetoric, but with contracts, capital, and coordinated policy. The coming years will test execution, but the strategic direction is clear: building sovereign and allied capabilities to secure the materials powering 21st-century technology and defense.
