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    Critical Metals’ Tanbreez rare earth project: pilot lab and PEA economics for engineers

    January 15, 2026|

    Reviewed by Joe Ashwell

    Critical Metals’ Tanbreez rare earth project: pilot lab and PEA economics for engineers

    First reported on MINING.com

    30 Second Briefing

    Critical Metals’ share price jumped 35% to about $18 in New York after it agreed to buy a Bromet-built, fully integrated mobile assay laboratory for roughly $1 million to support pre-mining pilot operations at its Tanbreez rare earth project in southern Greenland. The lab will provide real-time, on-site geochemical analysis for drill core and pilot plant material, complementing an Arctic-grade storage and pilot facility in Qaqortoq due mid-2026 and an international airport opening 12 km from site. A recent PEA outlines phased output from 85,000 to 425,000 tonnes of rare earth oxides per year from a 45-million-tonne kakortokite resource, with a pre-tax NPV of up to $3.6 billion and IRR of 180%.

    Technical Brief

    • Lab workflow targets rapid elemental analysis of both drill core and pilot plant process streams.
    • Real-time geochemical data at pit scale is intended to tighten ore–waste discrimination and pilot plant feed control.
    • Arctic-grade storage and pilot facility in Qaqortoq is sequenced ahead of full-scale plant construction.
    • Modular, turnkey development strategy is structured to allow staged capex and incremental throughput increases.

    Our Take

    The Tanbreez rare earth project in southern Greenland sits in the same US-facing critical minerals narrative as Amaroq Minerals’ Greenland assets, which our coverage shows have also drawn direct engagement from US government bodies in early 2026.

    An indicative 180% IRR for Tanbreez, if robust, would place Critical Metals at the aggressive end of project economics in our mining database, which typically signals either unusually high-grade ore, favourable logistics such as the 12 km proximity to an international airport, or optimistic price/cost assumptions that investors will scrutinise closely.

    Greenland-linked rare earth and critical minerals stories now recur across our 48 keyword-matched pieces, suggesting the island is becoming one of the more prominent non-Chinese options in Western supply-chain planning for rare earth oxides and associated critical minerals.

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    Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.

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