Highlights

• Tanbreez is positioned as one of the world's largest hard-rock rare earth projects in Greenland, with potential geopolitical strategic importance.
• The project's bankable feasibility study is 70% complete, with environmental baseline fieldwork finished and targeting Q4 2025 submission.
• Western rare earth supply chains could benefit from a potential new heavy REE source outside Asia, with early U.S. interest already demonstrated.

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Critical Metals Corp (CRML) says the Tanbreez Bankable Feasibility Study is ~70% complete, led by Danish firm NIRAS, with submission targeted for Q4 2025. Fieldwork for the 2025 environmental baseline is finished. The current scope spans mine design, processing, water/tailings (including a Lake Foster deposition plan), port/haul roads, and documentation for Greenland’s Mineral Licence and Safety Authority (MLSA).

Scale vs. Substance

Tanbreez is pitched as one of the world’s largest hard-rock REE projects, hosted in a kakortokite unit estimated at around 4.7 billion tonnes with ~27% HREO and very low U/Th (per company filings). But the defined resource to date covers only a slice of that envelope (industry coverage cites ~45 Mt), underscoring the basic truth: mineralized unit ≠ mineable inventory. Greenland has granted an exploitation licence MIN 2020-54 to Tanbreez Mining Greenland A/S—useful for regulatory clarity, not a verdict on project economics.

PR Gloss vs. Ground Truth

The milestone is real; the tone is aspirational. There are no BFS economics disclosed here—no capex/opex, product slate, or offtake detail. The completed baseline work is positive, but a Q4 BFS is not the same as project finance or FID—especially in Greenland, where environmental scrutiny and public consultation are exacting. Watch for metallurgy, tailings design acceptance, and a credible power/logistics plan to carry equal weight with headline tonnage.

Why ThisMatters to Supply Chains

If Tanbreez advances, Western buyers gain a potential heavy REE option outside Asia in a U.S./EU-aligned jurisdiction. Recent U.S. interest (e.g., an EXIM $120M letter of interest) and prior diplomatic attention around ownership highlight the project’s geopolitical profile. A successful BFS plus permitting would move Tanbreez from a talking point to a tangible HREE feedstock candidate for magnets and defense supply chains.

Our Read

Engineering and EIA groundwork under NIRAS adds credibility. Still, the project’s headline scale remains company-stated and should be discounted until BFS economics and permitting outcomes are public. For investors, the signal is clear: genuine momentum—yet the real de-risking arrives only when costs, metallurgy, permits, and financing line up.

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