China’s rare earth clampdown: supply chain risk lessons for mine planners
Reviewed by Tom Sullivan
First reported on MINING.com
30 Second Briefing
China’s decision to weaponise rare earth exports and ban processing technology in 2023 has triggered coordinated investment by the US, EU, Japan, Australia, South Korea and others in non-Chinese mining, separation and magnet manufacturing, including Malaysia becoming the first country outside China to separate heavy rare earths. Despite China still controlling about 90% of heavy rare earth separation and 93% of permanent magnet output, a new G7 deal caps sourcing at 60% from any single non-G7 country by 2030. The Pentagon’s 49% stake in a planned Saudi refinery, plus backing for MP Materials, Lynas and Alkane, signals a shift towards integrated mine–separation–magnet value chains, with stranded-asset risk for standalone projects.
Technical Brief
- China’s 2023 export ban on rare earth processing technology forces US projects to develop flowsheets in-house while constructing new plants.
- US rare earth endowment is skewed to light REEs, driving heavy REE offtake deals in Brazil, Angola and Australia.
- Heavy rare earth separation outside China is now technically proven in Malaysia, with further projects anticipated off that template.
- China currently undertakes about 90% of global heavy rare earth separation and ~93% of permanent magnet manufacture.
- A February ministerial led by US Secretary of State Marco Rubio convened 55 countries solely on critical minerals coordination.
- Pentagon has taken a 49% equity position in a planned Saudi rare earth refinery to anchor non-Chinese separation capacity.
- Japan’s diversification includes a 50% stake in Namibia’s Lofdal rare earth project and financing Lynas’s Malaysian separation plant.
- CSIS frames “resilience” as cutting China’s heavy REE separation share from ~90% to roughly 50% rather than full decoupling.
- Standalone mines or standalone separation plants are flagged as “stranded assets” unless integrated with downstream magnet manufacturing.
Our Take
With China still controlling about 90% of heavy rare earth separation and 93% of permanent magnet output, the Pentagon’s 49% stake in the planned Saudi Arabian rare earth refinery signals a move towards ‘friend-shoring’ midstream capacity rather than trying to replicate the full Chinese value chain in the US or EU alone.
In our database of 140 rare earth–tagged pieces, the emergence of USA Rare Earth’s $2.8 billion merger and Lynas Rare Earths’ strong A$288.9 million quarterly revenue underline that non‑Chinese rare earth developers are increasingly able to raise large-scale capital and win offtake, which reduces the effectiveness of future Chinese export or processing clampdowns.
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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