Greenland Mines has increased its ownership of AnorTech to 19.9% through an investment valued at approximately US$5.3 million, expanding its exposure to the development of an alternative alumina production process in Greenland. The transaction comes as AnorTech prepares to advance its processing technology from laboratory work to larger-scale pilot testing.
Under the agreement, Greenland Mines exercised an option to purchase an additional 25.17 million AnorTech shares, increasing its stake from approximately 9.9%. The transaction is valued at around C$7.55 million and will be settled through the issuance of Greenland Mines shares. Following completion, Greenland Mines will hold approximately 45.13 million AnorTech shares. The transaction remains subject to acceptance by the TSX Venture Exchange.
Anorthosite Processing Project Advances Toward Pilot Testing
The increased investment gives Greenland Mines a larger interest in AnorTech’s Grønne Bjerg anorthosite project near Nuuk, where the company is developing a process intended to produce smelter-grade alumina and high-purity alumina. The proposed flowsheet uses anorthosite as its feedstock instead of conventional bauxite. The process is also designed with the potential to avoid the large volumes of red-mud residue associated with traditional alumina refining.
The technology remains at the development stage. AnorTech has demonstrated its processing flowsheet only under laboratory conditions and has shipped approximately 15 tonnes of anorthosite for testing at a larger pilot plant. The next technical milestone is to establish whether the process can reproduce its targeted metal recoveries, product purity and operating performance at an increased scale. Results from the pilot work will provide further evidence of whether the proposed route can be applied reliably beyond laboratory testing.
Larger Stake Expands Greenland Mines’ Project Exposure
The AnorTech investment adds to Greenland Mines’ existing portfolio, which includes the Skaergaard palladium-gold-platinum project and the Sarfartoq rare-earth asset. The enlarged holding also increases the company’s exposure to mineral processing, rather than adding another conventional mine development project. AnorTech’s proposed production route could provide Greenland Mines with an interest in an alumina-processing business based on Greenland feedstock, provided the technology can demonstrate competitive performance at a larger scale.
The investment also increases Greenland Mines’ exposure to AnorTech before its process has been commercially validated. Assessment of the enlarged stake therefore involves both the strategic value of the company’s increased ownership and the technical risks associated with scaling the flowsheet.
Pilot Results to Test Processing Performance
AnorTech’s pilot programme will test whether its laboratory-developed process can maintain the required recoveries, product specifications and operating performance under larger-scale conditions. The company’s ability to demonstrate reliable performance beyond the laboratory remains central to the project’s progression. Successful pilot testing could strengthen the case for producing alumina from anorthosite and give Greenland Mines a larger position in the developing processing project. The immediate technical focus is on validating the flowsheet at pilot scale, following the shipment of approximately 15 tonnes of anorthosite for the planned tests.
