4 articles
China's controls on rare earth expertise target the operators and engineers required to bring Western separation and magnet plants to commercial yield. Tacit process knowledge is the binding constraint on replication.
China’s tungsten export controls expose the limits of price-only offtakes. Equity aligns capital with construction risk, secures priority under provenance rules, and adds governance rights that make long-term supply commitments more enforceable.
Traceability separates physically equivalent magnets into distinct procurement markets based on verified eligibility and mine-to-magnet evidence.
China controls 91% of rare earth refining and 98% of heavy rare earth separation. Western mining is expanding, but separation, magnet manufacturing, and process expertise remain the binding constraints.