The U.S. makes it harder for TSMC, SK Hynix and Samsung to produce chips in China
1. TSMC's VEU status revoked, impacting exports to its Nanjing facility. 2. SK Hynix and Samsung also lost VEU privileges on the same day. 3. Revoked VEU reflects U.S. tightening controls on chip exports to China. 4. TSMC's Nanjing fab contributes less than 3% to total revenue. 5. U.S. focuses on maintaining semiconductor production control amid competition.