China Curbs Critical Material Exports to Taiwan, Straining Tech Supply Chains

Germanium, quartz and rare earths are essential inputs for optical components, semiconductor manufacturing equipment and aerospace motors. China holds a pivotal position in the supply and processing of many of these materials, leaving import-dependent Taiwan exposed to longer lead times and higher costs. The disruption underscores how trade controls and customs procedures are becoming a growing geopolitical risk for advanced-technology supply chains.

China has recently tightened shipments of germanium, quartz and rare-earth materials to Taiwan by extending customs reviews, putting optical, chip-equipment and aerospace suppliers on alert. No formal effective date or estimate of the financial impact has been disclosed. Taiwan’s Industrial Technology Research Institute is accelerating development of a domestic rare-earth pilot production line as the island seeks to reduce reliance on a single source and strengthen supply resilience.