Japan is preparing to send a high level delegation to Greenland this summer to assess rare earth and critical mineral extraction opportunities, according to reporting by Nikkei cited by Reuters.
The planned mission is expected to include officials from Japan’s Ministry of Economy, Trade and Industry, the Japan Organization for Metals and Energy Security, and representatives from major Japanese trading companies. Talks with Greenlandic government officials are also expected.
More Than a Diplomatic Minerals Visit
Japan is testing whether Greenland can become part of a broader allied critical minerals chain: extraction in Greenland, processing in the United States or Europe, and eventual supply into Japanese manufacturing.
The Hard Part Is Processing
For Japan, the strategic value lies in the middle of the supply chain: chemical processing, separation, refining, metals, alloys and permanent magnets. China’s dominance sits across processing capacity, export licensing, magnet production, industrial scale and the machinery required to turn mineralized rock into usable strategic materials.
Japan has spent more than a decade trying to diversify rare earth supply after its 2010 confrontation with China, but its automotive, electronics, robotics and advanced manufacturing sectors still remain exposed to disruptions in heavy rare earths such as dysprosium and terbium. These materials are essential for high performance permanent magnets used in electric vehicles, wind turbines, electronics and defense systems.
Greenland Fits the US – Japan Critical Minerals Framework
The Greenland visit follows the US-Japan framework signed in October 2025 for securing critical minerals and rare earths through mining and processing. That framework places mining, processing, financing, stockpiling and supply chain resilience inside a formal allied structure.
Tanbreez Is the Obvious Near Term Asset
The most obvious near term Greenland asset in this context is Tanbreez, the rare earth project in southern Greenland now controlled by Critical Metals Corp. Greenland’s government approved the transfer of the final 50.5 percent interest in Tanbreez to Critical Metals in April, bringing the company’s ownership to 92.5 percent. The project is regarded as one of the world’s largest known heavy rare earth deposits and has a significant heavy rare earth component.
Tanbreez also has one feature that gives it particular strategic relevance: it is already being pulled into Western supply chain structures.
Critical Metals has signed a 10 year agreement to supply up to 10,000 metric tons per year of heavy rare earth concentrate from Tanbreez to Ucore Rare Metals’ U.S. government backed processing facility in Louisiana. The company has also signed a 15 year binding offtake agreement with REalloys covering 15 percent of annual rare earth concentrate production from Tanbreez.
Japan May Be Looking for a Place in the Chain
For Tokyo, the question is how to secure a place in the Tanbreez supply chain through finance, offtake, processing partnerships or downstream magnet supply before future production is fully spoken for.
One plausible route would be Greenland to US processing to Japanese industry. That would align neatly with the US-Japan critical minerals framework and would place Greenland material inside a politically coherent allied structure. Under that model, Greenland supplies the resource, the United States provides part of the processing bridge, and Japan draws on separated materials or downstream products for its industrial base.
Europe Offers a Second Processing Route
Another route could run through Europe. France’s Caremag rare earth refining project, backed in part by Japanese interests, is intended to provide Japan with future dysprosium and terbium supply. Estonia is also emerging as a rare earth processing and magnet location through Neo Performance Materials’ Silmet operations.
Japan Is Studying the Practicalities
The earlier Japanese visit to Lumina Sustainable Materials’ anorthosite mine at Qaqortorsuaq in western Greenland may be more revealing than it first appeared. Lumina does not mine rare earths. It mines anorthosite, an aluminium feedstock. But the visit gave Japanese officials and companies a direct look at the practical conditions of Greenlandic mining: mechanical processing, shipping constraints, winter operations, power infrastructure and Arctic logistics.
Japan Is Looking Beyond Stockpiles
After years of rare earth vulnerability, and after repeated reminders that China is prepared to use export controls as leverage, Tokyo is looking beyond emergency stockpiles and into project level access.
The most promising route may be an allied supply chain: Greenland supplies the resource, the United States or Europe processes it, and Japan brings capital, demand and manufacturing strength.
GreenlandEnergy.com provides independent analysis of Greenland’s energy landscape, critical minerals development, and Arctic geopolitics. For corrections or feedback: press@greenlandenergy.com
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