Nvidia has asked Foxconn to suspend work on the H20 AI chip, the most advanced product the U.S. company is currently permitted to sell to China, two people briefed on the matter said.

Semiconductor giant Nvidia ($NVDA) has asked some of its suppliers to halt the production of its H20 artificial intelligence (AI) chips that are

NVIDIA CEO Jensen Huang has dismissed security concerns over the company’s H20 chips, saying they pose no national risk to China and that continued sales would benefit both sides. His remarks follow reports that NVIDIA has slowed development of the H20 after Beijing urged domestic firms to avoid the chip.