China’s rare earth controls keep squeezing U.S. aerospace and chip supply chains

U.S. aerospace and semiconductor suppliers are still struggling to secure rare earth materials, with shortages continuing to ripple through coatings, chip manufacturing and other advanced materials supply chains as of late February 2026. Recent reporting indicates that export controls imposed by Beijing are still limiting access to scandium and related inputs even after some trade tensions eased.

Scandium remains a bottleneck for specialty alloys and chip processing

The most immediate pressure point is scandium, a material used in specialty aluminum aerospace alloys, fuel cells and advanced chip processing and packaging. Suppliers have told reporters that material is still tight enough to force rationing in some cases, a sign that the supply issue is affecting not just raw mineral availability but also downstream processing and qualified industrial customers.

That matters because scandium volumes are small, but its role is highly technical and hard to replace. When a material with such limited global supply becomes harder to source, manufacturers can face delays that cascade into production schedules, qualification timelines and customer deliveries.

Coatings and advanced manufacturing feel the pressure next

The shortages are also being felt by coatings manufacturers, according to the same reporting. That is an important signal for advanced materials markets, where a shortage in one upstream feedstock can hit multiple end uses at once, from aerospace hardware to semiconductor equipment to industrial surface treatments.

For companies that depend on just-in-time procurement of specialized inputs, the practical problem is not only price. It is the risk that a material cannot be secured in the required purity, quantity or timeframe, which can stall testing, slow production runs or force reformulation.

A supply-chain problem with industrial consequences

The broader implication is that rare earth supply remains a strategic vulnerability even after recent diplomatic efforts to ease trade frictions. For advanced materials users, the near-term task is less about headline geopolitics than about finding qualified alternate suppliers, building inventory and qualifying substitutions without compromising performance.

Until those backup channels are fully in place, the market for critical materials will continue to operate under a tighter margin for error than many manufacturers would prefer.