Nikkei: China Slows Germanium and Quartz Exports to Taiwan, Choking Optical and Aerospace Materials

Nikkei Asia reports China is restricting or delaying shipments to Taiwan of germanium- and quartz-based materials as well as certain magnets used in fiber optics, photonics and chip manufacturing. Taiwanese aerospace and optical suppliers are seeing supply-chain bottlenecks, adding a new chokepoint above the already contested silicon supply chain that feeds the island's AI-accelerator foundries.