This is the second time that Nvidia’s permission to sell in China has changed. As widely reported in April, the firm got re-approved to sell chips to China after a dinner meeting between Huang and Trump in the spring, apparently including a tit-for-tat deal in which Nvidia would create new server setups stateside.

Chinese firms are scrambling to buy Nvidia's H20 artificial intelligence chips, two sources told Reuters, as the company said it planned to resume sales to the mainland days after its CEO met U.S. President Donald Trump.

Washington has been concerned China could use Nvidia’s chips to get a jump on the U.S. in high-tech fields, particularly when it comes to artificial intelligence.