Rare-Earths Are Now Risk
The IEA warned that Chinese export controls on rare earths could shave as much as $3 trillion from US and European economic activity and demand could rise 50% by 2035, turning materials into programme risk (gtreview.com). Washington is already responding: a new defence mandate bars Chinese rare-earth alloys and policymakers are pushing domestic options, forcing suppliers and engineers to add supply‑resilience to trade studies (indexbox.io). Meanwhile Chinese exports stayed high in 2025, showing that uncertainty—rather than a full halt—can still distort qualification, inventory and long-term design choices (statista.com).
Rare earths are not rare in the way gold is rare. They are a group of 17 metals that do small but critical jobs inside magnets, motors, radars, missiles, wind turbines, and electric cars. (iea.org) The problem is that mining the rock is only the first step. The harder step is separating, refining, alloying, and turning those metals into finished magnet material, and China still dominates much of that middle of the chain. (iea.org) That is why a shipment delay can hit a factory like a missing brake line hits a car plant. One tiny input can hold up a jet engine, a guided weapon, or an electric motor even when every larger part is already on the shelf. (aviationweek.com) China tightened that leverage on October 9, 2025, when its Ministry of Commerce expanded export controls on rare-earth-related items and even some foreign-made goods that contain Chinese-origin rare earths above a 0.1% value threshold. (cset.georgetown.edu) Those rules did not need to cut exports to zero to change behavior. A licensing system, longer approvals, and the risk of a future denial are enough to make buyers hold extra inventory, redesign parts, or avoid a material entirely in a new program. (rff.org) The International Energy Agency said in its 2025 outlook that critical-mineral security is now being shaped by price volatility, supply bottlenecks, and geopolitical risk, not just by geology. Rare earths sit at the center of that shift because they feed both energy technology and defense manufacturing. (iea.org) Washington is already writing that risk into procurement rules. Department of Defense restrictions now require contractors to trace certain rare-earth permanent magnets, and by January 1, 2027, the rule for neodymium-iron-boron magnets reaches across the entire supply chain from mining through finished magnets. (ecfr.gov) That deadline is pushing a “mine to magnet” buildout inside the United States. The Pentagon has said it is trying to create domestic supply chains for the permanent magnets used in major weapons systems rather than keep buying a critical part from a strategic rival. (war.gov) Industry is moving to the weakest link first. On April 1, 2026, REalloys and U.S. Critical Materials said they would work on a fully domestic chain, with a focus on turning rare-earth oxides into metals and magnet-grade alloys, because that conversion step is still thin outside China. (reuters.com) Defense demand shows why this is urgent. U.S. government estimates cited by Aviation Week say a single Lockheed Martin F-35 contains more than 400 kilograms of rare-earth materials spread across engines, radar, power systems, and electronic warfare gear. (aviationweek.com) So the new risk is not just “Can you buy the metal this month.” It is “Can you certify the source, qualify a substitute, and promise a customer that a 10-year program will still have the same material in year eight.” (iea.org)
