A fragile improvement in rare-earth trade between China and the United States is showing fresh cracks. Some Chinese suppliers are declining to send critical minerals to American customers even when export licences are available, according to people familiar with the trade, raising new questions about how dependable the flow of strategic materials really is.
The development is not a blanket export shutdown, and no new North American auto-factory closure has been attributed to the latest refusals. Still, the timing is uncomfortable for automakers. China’s earlier restrictions demonstrated how quickly shortages of specialized magnets can reach assembly lines. With Chinese companies still dominating the refining and permanent-magnet stages of the supply chain, a relatively small disruption can carry consequences far beyond the value or volume of the minerals involved.
A Supplier Pause Changes the Nature of the Risk
The latest problem is different from simply waiting for Beijing to approve an export licence. Reuters reported that a handful of Chinese suppliers have declined shipments to U.S. companies since early August, while other suppliers had already pulled back from American business in recent months. In some cases, the companies reportedly possessed the necessary licences but were still reluctant to complete transactions because they feared regulatory or political consequences inside China.
That distinction matters for manufacturers. A licence system is difficult but theoretically manageable: buyers submit paperwork, wait for approval and plan around the process. Supplier reluctance introduces another variable. Reuters could not determine how many Chinese companies had stopped shipments, making the scale uncertain, but one source described four cases in which suppliers refused material because they feared it could ultimately reach prohibited users. For automakers and parts companies, predictability may matter almost as much as the total volume available.
Beijing’s Sanctions Created a New Compliance Dilemma
The immediate trigger for some of the recent refusals was China’s decision in early August to sanction the Responsible Business Alliance, a U.S.-based organization involved in supply-chain oversight. Its Responsible Minerals Initiative provides companies with due-diligence tools designed to help identify sourcing risks in mineral supply chains. Chinese suppliers cited by Reuters were reportedly concerned that participating in that framework could expose them to punishment from Beijing.
China linked its action to U.S. restrictions imposed through the Federal Communications Commission on Chinese testing laboratories and technology products. Beijing has argued that those American measures violated understandings reached between the two countries. The result is an unusual compliance problem: exporters may face pressure not only over what they sell but also over which auditing or verification systems they use. For Western manufacturers accustomed to demanding extensive mineral traceability from suppliers, that collision between regulatory regimes could complicate purchasing decisions even when the physical material remains available.
The 2025 Export-Control Shock Still Hangs Over the Industry
The industry has already seen what happens when rare-earth paperwork suddenly becomes a bottleneck. On April 4, 2025, China placed export controls on seven medium and heavy rare-earth elements and several related magnet products. Exporters had to obtain government licences, and shipments initially slowed sharply as companies worked through a process that could take weeks or months.
The disruption spread quickly because manufacturers had limited alternative sources. China’s exports of permanent rare-earth magnets to the United States eventually rebounded after trade talks, jumping more than sevenfold from May to June 2025 to 353 metric tons. Even then, China’s total global magnet exports for June remained about 38% below their year-earlier level. Those figures illustrated both sides of the problem: diplomacy could reopen the flow surprisingly quickly, but a licensing disruption could also remove enough supply to alarm industries thousands of kilometres away. The current supplier refusals revive that uncertainty without requiring Beijing to announce an entirely new embargo.
Small Magnets Can Stop Very Large Factories
Rare earths are a group of 17 elements whose most strategically important applications include powerful permanent magnets. In vehicles, neodymium-iron-boron magnets can appear in electric traction motors as well as smaller systems such as power steering, sensors, transmissions and audio equipment. The U.S. Department of Energy has noted the widespread use of rare-earth permanent magnets in hybrid and plug-in electric-vehicle drive systems.
The amount required by an individual vehicle can seem modest compared with tonnes of steel, aluminum and battery materials flowing through an assembly plant. A Department of Energy supply-chain assessment estimated that an electric-vehicle traction motor typically needs roughly one to two kilograms of permanent-magnet material. Yet a missing component does not have to be physically large to halt a production line. During the 2025 supply squeeze, automakers warned about shortages affecting everything from propulsion systems to motors for seemingly ordinary vehicle functions. That makes rare-earth availability a classic supply-chain chokepoint: low volume, high consequence.
China’s Dominance Is Deepest After the Mine
China’s influence over rare earths is sometimes described mainly as a mining advantage, but the more difficult dependency lies farther downstream. International Energy Agency data show China accounted for about 60% of global mined production of magnet rare earths in 2024. Its share rose to approximately 91% at the refining stage and 94% for sintered permanent-magnet production.
Those numbers explain why simply opening a new mine in North America does not immediately solve the problem. Ore must be concentrated, chemically separated into individual rare-earth products, refined into metals and alloys, and ultimately manufactured into magnets that meet demanding industrial specifications. Each stage requires specialized equipment, expertise and customers willing to support facilities through volatile commodity cycles. The U.S. Geological Survey estimated that China was the leading producer of 39 of the 74 mineral commodities it produced in 2023. Rare earths therefore sit inside a much broader struggle over strategically concentrated mineral-processing capacity, rather than being an isolated automotive sourcing issue.
North American Automakers Have Already Had a Warning
The 2025 shortage turned an abstract geopolitical risk into an assembly-line problem. Ford said it stopped production of the Explorer SUV at its Chicago assembly plant for roughly one week in May because of a rare-earth shortage. Around the same period, Chinese authorities issued temporary export licences to suppliers serving General Motors, Ford and Stellantis, with at least some approvals reportedly valid for six months.
The consequences were not limited to the United States. Suzuki suspended production of most versions of its Swift in Japan after China’s restrictions disrupted component availability. These examples explain why purchasing teams across North America are likely to treat the newest supplier refusals seriously even before another factory is forced to stop. Canada is especially exposed to regional disruptions because its automotive industry operates inside a deeply integrated North American production system. Components routinely move between Canadian, U.S. and Mexican facilities, meaning a shortage at an American supplier can ultimately affect Canadian assembly operations even without a direct Chinese shipment being destined for Canada.
The Latest Trade Data Still Show a Fragile Recovery
Material has been moving again, but the recovery remains uneven. Reuters reported that U.S.-bound yttrium shipments have increased during 2026 yet remain only around half their 2024 level. After two months with no shipments, China exported 27 metric tons of yttrium to the United States in July, the second-highest monthly amount since January 2025. Some American companies, however, have reportedly waited more than six months for mineral licences.
Conditions facing other major manufacturing economies demonstrate how selectively supply can tighten. Chinese customs data cited by Reuters showed no terbium exports to Japan from January through August 2026, compared with 20 tons in the same period a year earlier. Gallium shipments to Japan were down 65%, while yttrium shipments fell 98%. Not all of those materials serve the same automotive functions, but terbium is important in high-performance rare-earth magnets. The wider pattern reinforces the concern that recovering headline export volumes do not necessarily guarantee reliable access to every critical material or customer.
Washington Is Paying to Build a Domestic Magnet Chain
The United States has responded by putting unusually direct government support behind domestic production. In July 2025, the Defense Department announced a major partnership with MP Materials, operator of the Mountain Pass rare-earth mine in California. The arrangement included a $400-million preferred-equity investment, a 10-year price floor of $110 per kilogram for neodymium-praseodymium products and support for expanding heavy rare-earth separation.
MP Materials also plans a second U.S. magnet-manufacturing facility, known as the 10X Facility, with commissioning targeted for 2028. Automakers are developing their own supply alternatives as well. General Motors reached a multi-year agreement with U.S. manufacturer Noveon Magnetics in 2025, with deliveries beginning that July for components used in full-size trucks and SUVs. These investments will not eliminate Chinese dependence overnight. They do, however, show that automakers and governments now view magnet capacity less like an ordinary commodity purchase and more like strategic industrial infrastructure.
Canada Is Moving From Geology Toward Processing and Recycling
Canada possesses substantial geological potential but still faces the same midstream challenge. Natural Resources Canada estimates the country has approximately 15.2 million tonnes of rare-earth-oxide reserves and resources, yet Canada is not currently a commercial producer of mined rare earths. That gap has encouraged governments to focus increasingly on processing, separation and recycling rather than waiting solely for new mines.
Saskatchewan Research Council has been developing rare-earth separation and metal-production capabilities in Saskatoon, including work on dysprosium and terbium. Ontario is also becoming part of the recycling strategy. Kingston-based Cyclic Materials is scaling technology designed to recover rare earths from magnets and other waste streams. Federal initiatives highlighted in 2026 included up to $9.1 million for its rare-earth recycling Centre of Excellence, alongside a US$25-million Canada Growth Fund equity investment. These projects remain far smaller than China’s industrial base, but they target precisely the processing and recycling gaps that recent disruptions have exposed.
The September Summit May Ease Pressure, Not Erase It
Rare earths are expected to be on the agenda when Chinese President Xi Jinping visits Washington on September 24. U.S. officials have been pressing Beijing to honour commitments reached in previous talks in Busan and Beijing aimed at improving the flow of export licences. There are signs of movement: Reuters reported that several U.S. companies have recently received multiple approvals after lengthy waits.
A diplomatic breakthrough could therefore improve near-term availability, just as agreements helped magnet shipments rebound in 2025. The deeper problem is harder to negotiate away. Suppliers may remain cautious about American customers, auditing requirements or possible resale to restricted users even after licences are approved. Meanwhile, the IEA continues to identify rare-earth processing and magnet manufacturing as among the world’s most geographically concentrated critical-mineral supply chains. For North American automakers, the newest shipment refusals are another reminder that diversification is no longer just about securing cheaper material. It is increasingly about ensuring that a factory can keep building vehicles when geopolitical rules change.
