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.

American chipmaking giant Nvidia says it plans to resume sales to China of an artificial intelligence chip that’s become part of a global race pitting the world’s biggest economies against each other.

Nvidia stock spiked on Tuesday. The AI chip titan said it had received assurances from the administration that it can resume sales of key AI chips to China.