China’s magnet chokehold reshapes defence supply chains

China’s magnet chokehold: how new export controls are re‑wiring defence supply chains

China’s latest rare earth and magnet export controls are rapidly transforming global defence supply chains, forcing the United States and allies to accelerate domestic mine‑to‑magnet capacity, strategic stockpiles, and recycling in order to keep advanced missiles, radars and electronic warfare systems in production.1346

China has spent the past five years turning rare earth export controls into a central national security instrument, and the regime reached a new strategic inflection point with the October 2025 and 2026 measures that extend Chinese authority far beyond its borders.43 The core shift is not simply tighter licensing. Beijing has adopted a foreign‑direct‑product style rule for rare earths and permanent magnets, so that foreign‑made magnets containing as little as 0.1 percent Chinese‑origin heavy rare earth content, or produced using Chinese processing technologies, must obtain Chinese export approval.34 This is explicitly framed to prevent direct or indirect contributions of Chinese rare earths to foreign militaries, with applications linked to defence end use automatically rejected.35

For defence and aerospace manufacturers, the choke point is not raw ore but high‑performance permanent magnets, especially those used in guidance systems, precision actuators, radar arrays, electric propulsion and classified electronic warfare hardware.23 These magnets rely disproportionately on heavy rare earths such as dysprosium, terbium and, to a lesser extent, gadolinium and samarium, which are added to NdFeB magnet chemistries to preserve magnetic performance at high temperatures typical of jet engines, missile fins, and space environments.16 China’s April 2025 controls singled out seven heavy rare earths, including dysprosium, gadolinium, lutetium, samarium, scandium, terbium and yttrium.16 In October 2025 it added erbium, europium, holmium, thulium and ytterbium, a cluster of elements used in niche defence applications from fiber‑laser weapons to specialized optics.6

This policy architecture gives Beijing several levers over defence‑related supply chains.

First, by restricting key elements while sustaining magnet exports, China preserves its high‑value manufacturing advantage. Analysts note that controls are designed to keep Chinese magnet producers fully supplied while curbing non‑Chinese access to the same heavy rare earth feedstocks.24 Export licensing to foreign militaries is largely denied, and rare earth use for military end users is explicitly firewall‑ed in regulatory language.35 At the same time, Chinese nationals are prohibited from working on overseas rare earth exploration, processing or magnet manufacturing projects without prior authorization, which constrains foreign efforts to replicate Chinese know‑how.34

Second, the regime has an important intelligence dimension. To secure six‑month licenses for buying Chinese rare earths, European firms must submit detailed information on purchaser identity, activity, requested volumes, and granular end‑use data, with any defence‑related end use leading to automatic rejection.7 Over time, these recurring reporting cycles give Chinese authorities a live map of Western industrial and defence‑adjacent supply chains, including depth, bottlenecks and potential points of failure.7 Rare earth licensing has become both a trade lever and a strategic data‑collection system.

Third, the controls are deliberately adjustable. China used April 2025 restrictions on seven rare earths as a high‑pressure tool, then partially eased licensing in July 2025 after US pushback.154 In November 2025 MOFCOM Announcements 70 and 72 suspended implementation of several October directives and paused enhanced US‑focused dual‑use licensing provisions until late 2026.5 This “pause” does not dismantle the architecture. It temporarily returns some exports to standard licensing while leaving the military‑end‑use prohibition intact, signaling that tighter controls can snap back as conditions change.5 Export‑control law, technology bans, and licensing catalogues have been unified into a single regime that explicitly treats supply‑chain security as a national security matter.4

The market response has been immediate. S&P Global and other participants expect rare earth supply bottlenecks and elevated price premiums outside China to persist through 2026, especially for heavy rare earths tied to defence uses.1 Analysts highlight that volumes of critical heavy rare earth materials “have dried up” for non‑Chinese buyers since the dual‑use restrictions took effect, with alternative sources unlikely to add meaningful capacity before at least 2027.1 The result is a bifurcated market, in which China‑centric supply chains enjoy relative price stability while non‑Chinese consumers pay higher premiums and confront intermittent shortages.1

For defence OEMs, the most exposed segments include:

- Missiles and precision‑guided munitions. Compact, thermally stable magnets are central to guidance actuators, control surfaces and seekers. Dysprosium and terbium additions to NdFeB magnets delay demagnetization at the high temperatures present around rocket motors and high‑g maneuvers, making these heavy rare earths strategically critical.16

- Radar and electronic warfare systems. Rotating arrays and precise beam‑steering components use rare earth permanent magnets, while rare earth dopants such as europium and holmium appear in niche high‑performance electronics and photonics. Controls on these elements raise procurement risk for next‑generation airborne and naval radars.62

- Aerospace propulsion and actuation. Electric actuators, fly‑by‑wire systems and power‑dense generators rely on rare earth magnets with heavy rare earth doping. High‑temperature performance is particularly relevant for fighter jets and unmanned systems. Supply interruptions translate directly into delayed aircraft deliveries.12

- Directed‑energy and laser systems. Certain heavy rare earths, including thulium and holmium, are key dopants in solid‑state laser materials for range‑finding, targeting and emerging weapons. Their addition to China’s control lists signals awareness of the technology’s defence relevance.6

Allied governments have responded with a mix of traditional industrial policy and what some analysts call “leapfrog” strategies.

On the traditional side, the US Department of Defense and allied agencies are investing heavily in mine‑to‑magnet infrastructure. A recent CSIS analysis highlights a memorandum of understanding between Noveon Magnetics and Lynas Rare Earths to build a scalable, domestic magnet supply chain in the United States.3 The Department of War’s Office of Strategic Capital has extended a 150 million dollar loan to expand MP Materials’ Mountain Pass facility, adding heavy rare earth separation capabilities, and has agreed to a ten‑year offtake for 100 percent of output from MP’s planned “10X” magnet manufacturing facility.3 These deals effectively pre‑book magnet capacity for US defence programs, providing predictable demand and financing for non‑Chinese supply.

The United Kingdom and European partners are pursuing parallel strategies. RUSI’s work on UK vulnerabilities recommends government or market‑supported stockpiles of critical rare earths and magnets, strengthened partnerships with US, Japanese and European firms, and investment in domestic processing, alloy and magnet production.2 It also calls for coordinated alignment between UK Critical Minerals Strategy and NATO or EU stockpiling initiatives, an implicit recognition that rare earth resilience for defence applications cannot be achieved in isolation.2

At the same time, leading policy voices argue that the United States and allies cannot out‑mine and out‑process China using conventional approaches.6 A Council on Foreign Relations analysis urges an innovation‑led “leapfrogging” strategy focused on disruptive technologies such as advanced recovery, recycling, and materials substitution.6 In support of this, the US government provided a 1.4 billion dollar combined debt‑and‑equity package in November 2025 to accelerate scale‑up of domestic rare earth magnet recycling and recovery with two vertically integrated growth‑stage companies.6 The objective is to create a secondary supply of magnet‑grade rare earths that can reach scale faster than greenfield mining and refining projects.

From a rare earth industry perspective, several medium‑term dynamics are emerging.

First, pricing and benchmark fragmentation will deepen. With China maintaining tight control over heavy rare earth exports and military end uses, non‑Chinese consumers will increasingly look for independent pricing benchmarks in Europe and North America.1 The spread between onshore Chinese prices and offshore premiums is likely to remain elevated, especially given the limited pipeline of heavy rare earth projects scheduled to enter production before 2027.1

Second, magnet manufacturing geography is shifting, but slowly. New US, European and Japanese magnet plants are being financed, often with explicit defence offtake agreements and public support.236 However, many of these facilities still depend on Chinese‑origin rare earth oxides or alloys, which keeps them within reach of China’s extraterritorial licensing rules.34 To escape this gravity, projects must pair non‑Chinese mining and separation with domestic or allied alloying and magnet fabrication, a full mine‑to‑magnet chain that remains rare.

Third, stockpiling and “just‑in‑case” inventory strategies are normalizing across defence primes and tier‑one suppliers. Yet China’s licensing documentation reportedly discourages overt stockpiling by requiring justification of requested volumes against immediate use.7 This forces Western firms to rely more on government‑run strategic reserves and less on private buffer inventories, subtly shifting bargaining power toward states.

Finally, the export‑control trajectory raises the risk that rare earths become structurally embedded in broader geopolitical bargaining, not only as economic tools but as data and influence channels. China’s ability to turn licensing on and off, collect detailed industrial intelligence, and target specific end‑user categories demonstrates how critical minerals have moved from background inputs to foreground instruments of statecraft.47[8]

For industry participants in rare earth mining, processing, magnet manufacturing and recycling, the defence‑related implications are clear:

- Heavy rare earth separation and magnet‑grade materials aimed at non‑Chinese defence customers will command sustained premiums, but must navigate regulatory and financing complexity.

- Projects that deliver high‑temperature magnet chemistries without dysprosium or terbium, whether through materials innovation or alternative alloys, stand to benefit disproportionately if they can meet defence performance standards.6

- Vertically integrated recycling and secondary supply chains will be positioned as strategic assets, attracting public co‑investment and long‑term offtake agreements from defence agencies.62

- Transparency and traceability will become commercial differentiators. Defence primes will favor suppliers that can document non‑Chinese origin, processing, and magnet manufacturing, to avoid entanglement in Chinese licensing.34

The rare earth sector is entering a phase where magnet chemistry, regulatory architecture and defence procurement are tightly coupled. For analysts and companies in the space, understanding China’s evolving export‑control playbook, and the specific heavy rare earths at the heart of high‑temperature magnet technologies, is now central to assessing both market risk and strategic opportunity.