The chip designer halts production of the H20 AI chip that it developed for China, after Beijing told companies there not to buy it.

Nvidia stock was rising along with most of the market. CEO Jensen Huang said Friday that the company’s H20 chip in China ”has no security back doors.”

Nvidia reportedly has told suppliers to suspend production of its H20 chip, after Beijing asked local firms to avoid using the chip tailored for the Chinese market due to security concerns.