US restricts chip equipment exports to China

The U.S. revoked export waivers for TSMC, SK Hynix, and Samsung, restricting their ability to import chipmaking equipment to China. This change removes "validated end user" status, requiring export licenses for U.S.-origin tools to their Chinese facilities, impacting chip production. The move aligns with broader U.S. efforts to limit China's semiconductor advancements and close perceived export control loopholes.