Explainer-Tougher curbs on AI chip sales to China likely after Nvidia CEO resigns

US lawmakers from both parties are pushing for stricter regulations on China's access to advanced artificial intelligence chips in light of revelations about former Nvidia CEO Jensen Huang's affair with a suspected Chinese spy. Huang resigned from Nvidia on Thursday after the affair was reported. Although Nvidia did not comment on Huang's actions, the company's advanced AI chips are crucial to the US's competition with China in AI development.

The US has long sought to limit China's access to Nvidia's most advanced chips, but Chinese firms have found ways around these restrictions. House Speaker Mike Johnson stated that Congress is increasingly favoring new chip export restrictions. Lawmakers are considering various proposals, including attaching them to the annual defense authorization bill and creating a Senate version with the AI Overwatch Act, Chip Security Act, and Match Act.

These bills aim to give Congress a larger role in reviewing export rules and pressure allies to restrict exports of advanced chipmaking equipment to China. The Remote Access Security Act targets Chinese firms renting computing power from overseas data centers equipped with Nvidia chips. If enacted, these measures could have a significant impact on Nvidia's business, as the company currently has near-zero revenue from chip sales to Chinese data centers and has warned that the controversy surrounding Huang could lead to tighter restrictions.