U.S. updates export curbs on AI chips and tools to China
By William Mallard, Alexandra Alper and Bill Berkrot
US Asks South Korea to Toughen Up Export Controls on China Chips
By Mackenzie Hawkins and Sam Kim
US may soon unveil list of Chinese chip factories barred from receiving tech
By Alexandra Alper and Karen Freifeld
China criticises US tightening of chip export rules
By Bernard Orr and Edwina Gibbs