US lawmakers push tighter China chip curbs after Jensen Huang controversy

US lawmakers are pushing for tighter restrictions on advanced AI chip exports to China following reports linking former Nvidia CEO Jensen Huang to an executive suspected of spying for Beijing. The bipartisan effort includes proposals for greater congressional oversight and measures to close loopholes. Huang stepped down on Thursday after acknowledging an extramarital affair, though Nvidia's statement did not address the allegations. Proposed legislation includes the AI Overwatch Act for congressional review of export decisions, the Chip Security Act to track processors diverted to China, and the Match Act targeting allied semiconductor manufacturing equipment. The Remote Access Security Act would regulate Chinese firms renting computing capacity from overseas data centres, which Nvidia warned could have a material impact on its business. Chinese AI companies are rushing to secure Nvidia-powered data centre capacity abroad, fearing stricter controls may follow.