NVIDIA has been called in by Chinese regulators over claims that its H20 AI chip poses security risks, putting billions in potential sales at stake.

After Washington’s U-turn, Nvidia chief executive Jensen Huang visited Beijing to meet officials and customers. He stressed his company’s commitment to the Chinese market and introduced a new graphics processing unit based on the latest Blackwell series that is tailored to align with existing US export controls.

China has summoned Nvidia to address alleged H20 chip security flaws, raising fresh concerns about the AI giant’s China business.