China Halts Key Metal Exports to Taiwan, Hits Aerospace and Optics

China has slowed exports of specialty alloys and rare elements essential for Taiwan’s advanced manufacturing sector, which supplies global tech and defense markets. The move follows recent tensions over Taiwan’s status, with Beijing viewing the island as part of its territory. Industry analysts say the curbs could delay production in Taiwan’s precision optics and aviation supply chains, forcing companies to seek alternative suppliers at higher costs and longer lead times. Chinese officials have not issued a formal statement, and the full scope of the restrictions remains unclear, though exporters reportedly face tighter review processes for these metals [223565].

The slowdown is part of a broader pattern of using critical mineral supplies as leverage. China controls a large share of the global supply chain for rare earths—metals used in smartphones, electric vehicles, and military equipment—from mining to refining, giving it a significant cost and scale advantage [223634]. Western efforts to reduce dependence on Chinese exports, through strategies like buying from allies or building domestic supply chains, have struggled to deliver results, leaving many nations still heavily reliant on Chinese supplies [223634].

Taiwan’s government has not commented publicly, and local manufacturers are assessing potential impacts on their orders and inventory. Some shipments are still moving, but at a slower pace, and more details are expected as companies and officials respond [223565].