Treasury secretary questions whether the chipmaker pursued illicit AI chip sales and points to export-control scrutiny as the board searches for a permanent chief executive.
Treasury secretary says chipmaker's board must answer export-control questions within 10 days after Jensen Huang's resignation.
Lawmakers from both parties want chip-control measures folded into the annual defense bill, days before Trump meets Xi Jinping.
Treasury secretary questions whether Nvidia chased illicit chip sales as he presses a widening feud with Commerce's Lutnick over alleged diversion to China.
Singapore-based Megaspeed is accused of passing advanced Nvidia chips to unauthorized Chinese buyers, exposing a loophole in US export controls on AI hardware.
The Nvidia founder and CEO stepped down after reported affairs, one with a woman U.S. intelligence concluded was a Chinese spy, thrusting the AI chipmaker into its biggest crisis.
Nvidia's board launched an independent investigation into CEO Jensen Huang's relationship with a woman U.S. officials suspect of spying, as lawmakers push tighter China chip rules.
The Singapore cloud firm says former executive Alice Huang left in August 2025 and denies media reports about its supply chain.