Greenland Resources has reported the presence of rare earth element mineralization within core samples collected from its Malmbjerg molybdenum project in Greenland. The company is evaluating the potential recovery of rare earth elements as a by-product of the planned molybdenum operation, with relevance to electric vehicle (EV) and electrification supply chains.
A total of 233 core samples from five archived diamond drill holes were reassayed, with total rare earth oxide concentrations measured at up to 579.5 parts per million. Sample intervals were selected based on molybdenum grades above the economic cut-off defined in the project’s NI 43-101 feasibility study.
The samples were analyzed at SGS facilities in Canada using combined ICP-OES and ICP-MS methods covering 56 elements, including molybdenum, magnesium, and rare earth elements.
The reassay results identified elevated concentrations of both light and heavy rare earth elements, including neodymium, praseodymium, dysprosium, and terbium. These materials are used in permanent magnets for electric vehicle traction motors and other electrified systems. Gallium, a critical material for power electronics and semiconductor applications, was also identified at average concentrations of approximately 19 parts per million.
The company is conducting petrographic analysis to identify the mineral phases hosting the rare earth and magnesium content within the molybdenum orebody. This work is intended to inform future metallurgical testing and assess the feasibility of recovering rare earth elements alongside molybdenum during processing.
Malmbjerg is a proven and probable molybdenum deposit with an estimated operating life of approximately 20 years and a planned throughput of roughly 35,000 tonnes per day. Greenland Resources is evaluating whether rare earth recovery could be integrated into the existing process flowsheet to leverage shared infrastructure and reduce incremental capital and operating costs.
Sampling for the metallurgical program was completed using material stored in secure government facilities in Greenland. Quality assurance and quality control procedures included certified reference materials, blanks, and duplicate samples, with full chain-of-custody maintained throughout the sampling and analytical process.
Further metallurgical testing and economic assessment will be required to determine recovery rates, concentrate grades, and the commercial viability of rare earth element recovery as part of the Malmbjerg project.
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