Nvidia faces challenges in trying to please both Washington and Beijing amid intensifying US-China tech rivalry in AI.

Nvidia met with Beijing officials on Thursday regarding potential national security risks posed by the resumption of its H20 chip exports to the country.

Nvidia chips do not contain "backdoors" allowing remote access, the U.S. tech giant has said, after Beijing summoned company representatives to discuss "serious security issues". The California-based company is a world-leading producer of AI semiconductors, and this month became the first company to hit $4 trillion in market value.