Twenty national security experts and former government officials urge the Trump administration to reverse a decision to let Nvidia sell H20 AI chips in China.

Demand in China has begun surging for a business that, in theory, shouldn't exist: the repair of advanced Nvidia artificial intelligence chipsets that the U.S. has banned the export of to its trade and tech rival.

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.