US Aerospace and Chipmakers Ration Yttrium Amid Worsening Chinese Rare Earth Export Shortages

The core issue stems from China's dominance in producing niche rare earths like yttrium and scandium, which are essential for high-temperature engine coatings in jets and turbines, as well as advanced 5G chip packaging. Despite the October 2025 trade detente that paused broader export restrictions, shipments of yttrium to the US have plummeted from 333 tons in the eight months prior to April 2025 controls to just 17 tons afterward, per Chinese customs data. Yttrium prices have surged 60% since November 2025 and now stand 69 times higher than a year ago, compelling two North American firms to halt production temporarily and prioritize larger clients like engine makers from GE Aerospace and RTX's Pratt & Whitney. This supply pinch threatens aerospace output amid booming demand for spare parts from Boeing and Airbus, positioning it as a 'watch item' for China's strategic flexing of rare earth muscle.1

Scandium shortages compound the crisis for US semiconductors, where global output is mere tens of tons annually but critical for every 5G smartphone and base station. US chipmakers face delays in Chinese export licenses, with no domestic production or viable alternatives, leaving stockpiles at mere months. Industry sources indicate targeted restrictions on semis, prompting appeals to Washington.1

These disruptions underscore why Western diversification efforts accelerate. British Columbia fast-tracks Defense Metals' Wicheeda rare earth project, boasting 25.5 million tonnes reserves at 2.4% TREO for 31,900 tonnes annual output over 15 years (NPV C$1B, IRR 19%), alongside copper projects, signaling Canada's push for critical minerals permitting.3 MP Materials advances US independence with a $1.25B Texas magnet plant targeting 10,000 tonnes NdFeB magnets yearly, bolstered by NdPr prices hitting $123/kg above the Pentagon's $110/kg floor, and a major undisclosed automaker supply deal.11155 Defense Metals also leads a Canadian trade mission to Europe, enhancing global partnerships.6

Geopolitically, this exposes China's vulnerabilities elsewhere, like Congo's cobalt export curbs squeezing Beijing's processors, while US strategies including Project Vault stockpiles reshape chains. The 'why' is clear: Beijing's deliberate supply management amid firm magnet demand creates short-term tightness, but sustained Western investment in projects like Wicheeda and MP's facilities aims to erode this monopoly, critical as Trump-Xi talks loom in March 2026.1513