China has imposed export controls on two US-based rare earth producers, a move that threatens to deepen existing supply chain vulnerabilities for critical minerals used in defense systems and electric vehicle batteries. The controls, announced by Beijing without naming the specific companies, take immediate effect and require the US firms to obtain special licenses before shipping rare earth materials out of China.
What the controls mean for supply chains
Rare earth elements are essential for making powerful magnets, lasers, and guidance systems in military hardware, as well as for the motors and batteries in electric vehicles. China dominates global rare earth refining, handling roughly 60% of mining and over 80% of processing. By restricting exports to two US producers, Beijing directly targets the companies that feed rare earths into American defense contractors and automakers.
The US Department of Defense has flagged rare earth supply as a national security risk for years. The new controls could force affected companies to scramble for alternative sources in Australia, the US, or elsewhere — but building new processing capacity takes years. For the EV sector, automakers like Ford and General Motors already face tight battery metal supplies. Any disruption to rare earth magnets could delay production of electric motors.
Which companies are affected
The Chinese government did not identify the two US producers by name in the announcement. Industry analysts point to MP Materials, which operates the Mountain Pass mine in California but ships concentrate to China for processing, and Lynas Rare Earths, an Australian company with US operations that also relies on Chinese separation facilities. Both firms have been working to build their own processing plants in the US and Australia, but neither is fully independent yet.
MP Materials declined to comment on the controls. Lynas did not immediately respond to a request for comment. The US Trade Representative’s office said it is reviewing the measure and weighing potential counteractions.
Impact on defense and electric vehicles
Rare earths are not just any commodity — they are the backbone of modern high-tech warfare. The F-35 fighter jet uses more than 900 pounds of rare earth magnets. A single Arleigh Burke-class destroyer requires roughly 5,000 pounds. Without a steady supply of processed rare earths, the Pentagon’s ability to maintain and build new weapons systems comes under direct threat.
On the commercial side, the EV industry is equally exposed. Every electric car uses rare earth magnets in its drive motor — typically neodymium, praseodymium, and dysprosium. Tesla, Rivian, and legacy automakers are racing to lock in supply deals. The export controls could push prices higher and force automakers to redesign motors using less rare earth content, a shift that would take engineering time and money.
What happens next
The affected US producers now must apply for export licenses from China’s Ministry of Commerce. There is no guarantee those licenses will be granted. The US government is expected to accelerate funding for domestic rare earth processing projects, but the timeline for those projects remains uncertain. A congressional hearing on critical mineral supply chains is scheduled for next month, where lawmakers are likely to press administration officials on how they plan to respond.
