Former Nvidia CEO Jensen Huang has been summoned to testify next month before a Senate committee about his alleged affair with a woman suspected of being a Chinese spy.

Huang abruptly quit on Thursday as head of one of the world’s most valuable companies after revelations of alleged extramarital affairs, in a stunning fall from grace that sent shockwaves through Silicon Valley.

Commerce Secretary Howard Lutnick, who is under scrutiny over exports of sensitive Nvidia AI chips to China, has also been summoned to appear before the Senate Banking Committee in December.

Nvidia has lost $550bn (£415bn) in stock market value in just five days as the scandal dominated headlines.

Senator Tim Scott sent letters on Thursday to Huang and Lutnick requesting their testimony in front of the Senate Banking Committee.

“Recent reports raise serious concerns about our national security and the protection of sensitive US technology,” the South Carolina Republican posted on X.

“The American people deserve answers,” he added.

Scott asked Huang to appear voluntarily on 3 December, but also warned the panel could issue a subpoena to compel his testimony.