US government imposes license requirement on Nvidia H20 exports
1. Nvidia faces new U.S. export controls on its H20 AI chips. 2. A license is now required to export H20 chips to China indefinitely. 3. Nvidia expects $5.5 billion in charges this fiscal quarter. 4. Stock fell 6% in extended trading following the news. 5. Calls for stronger controls stem from the chip's use in Chinese AI.