Rare‑earth supply squeeze
Supply chains for rare earth elements used in electronics and EVs are under strain because China dominates production and has tightened exports. (x.com) That push toward diversification can change sourcing options and lead times for components that use those materials. (x.com)
China’s April 4, 2025 export controls on seven medium and heavy rare earths tightened a supply chain that electronics, electric vehicles and defense manufacturers already struggled to replace. (mofcom.gov.cn) The controlled materials include samarium, gadolinium, terbium, dysprosium, lutetium, scandium and yttrium, along with related oxides, alloys, compounds and mixtures that now require export licenses. (china-embassy.gov.cn) Rare earths are a group of 17 elements used in very small amounts to make magnets that stay powerful under heat and stress, which is why they show up in electric vehicle motors, wind turbines, phones, radar systems and aircraft parts. (iea.org) China’s leverage is strongest in the middle of the chain, not just at the mine. The International Energy Agency said China accounted for about 60% of mined rare earth supply, 91% of refining and 94% of neodymium-iron-boron magnet production in 2024. (iea.org; iea.org) The United States still mines rare earths, but its domestic chain remains thin. The U.S. Geological Survey estimated 45,000 metric tons of rare-earth-oxide concentrate output in 2024, while net import reliance for compounds and metals was 80%. (usgs.gov) That gap is why export licensing in China can change delivery times far beyond the mine. A motor maker waiting on dysprosium or terbium is often really waiting on a finished magnet, and a carmaker waiting on a magnet is often really waiting on a licensed shipment. (csis.org; hklaw.com) Governments and companies have spent the past year trying to build alternatives. On July 10, 2025, MP Materials said it struck a multibillion-dollar public-private partnership with the U.S. Department of Defense to add heavy rare earth separation in California and build a second U.S. magnet plant, with total domestic magnet capacity targeted at 10,000 metric tons when the new facility begins commissioning in 2028. (mpmaterials.com) The catch is time. The International Energy Agency said rare earths remain among the most geographically concentrated critical minerals, and new projects outside China still face long lead times in separation, metalmaking and magnet production. (iea.org) China has said it is reviewing license applications and approved a number of compliant cases in June 2025, while presenting the controls as lawful and tied to national security. Importing countries and manufacturers have treated the same policy as a supply risk that can idle factories if approvals slow. (english.www.gov.cn; china-embassy.gov.cn) The supply squeeze is not a story about running out of rare earths in the ground. It is a story about who can separate them, turn them into metals and magnets, and ship them on time. (iea.org; usgs.gov)
