China blacklists MP Materials, USA Rare Earth: supply-chain risks for mine projects
Reviewed by Joe Ashwell
First reported on MINING.com
30 Second Briefing
China has placed MP Materials and USA Rare Earth on its export control list, blocking Chinese dual-use goods and technologies from reaching the operators of the Mountain Pass mine in California and USA Rare Earth’s emerging domestic magnet and processing projects. The move follows China’s April 2025 curbs on key rare earth elements and magnets and comes just days after the G7 agreed to cap rare earth imports from any single non-bloc supplier at under 60% by 2030. For project developers, the blacklist tightens constraints on Chinese-origin processing equipment, magnet technology and robotics, increasing pressure to qualify non-Chinese suppliers.
Technical Brief
- Export controls explicitly target “dual-use” Chinese-origin equipment and software with potential commercial or military applications.
- Secondary transfer is banned: any third-country supplier cannot re-export Chinese dual-use kit to MP or USAR.
- MP Materials’ Mountain Pass operation is directly affected as the only active rare earth mine in the US.
- Eight additional US firms in drones, robotics and aerospace were simultaneously blacklisted, tightening technology flows around defence-adjacent hardware.
- The Pentagon is both a shareholder in MP Materials and a parallel user of rare earth products for defence systems.
- China’s move mirrors earlier US action adding several Chinese firms to a defence blacklist over alleged military ties.
Our Take
MP Materials and USA Rare Earth were already in a legal and technology dispute over grain-boundary diffusion magnet IP as of late May 2026, so China’s blacklist adds a geopolitical layer on top of an existing US domestic rivalry in rare earths.
In our database, rare earth and critical minerals pieces often centre on China’s roughly 60% share of mined output and near-total processing control, so the G7’s 60% import-cap target by 2030 signals a deliberate attempt to hard-code diversification away from Chinese supply into policy.
USA Rare Earth’s planned $1.2 billion NdFeB magnet and metals plant in South Carolina positions it, along with MP Materials’ Mountain Pass in California, as one of the few US-based options for terbium- and dysprosium-bearing supply chains if Chinese export or blacklist measures tighten further.
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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