Three Republican chairs of U.S. House committees have asked Nvidia Chief Executive Jensen Huang to attend a closed-door briefing on Nov. 18 about his contacts with a former executive of Megaspeed, a Singapore-based buyer of Nvidia chips whom U.S. officials reportedly suspected of passing information to Beijing.

The request puts Nvidia back at the center of Washington's debate over how advanced AI processors reach China. For investors in Asia, the issue touches Nvidia's sales through regional cloud operators in Southeast Asia, and the wider supply chain in Taiwan that builds its products. Neither Huang nor the former executive has been charged with any wrongdoing, and the two are not related, according to The Next Web.

What the House chairs want from Jensen Huang

The letter, sent on Wednesday, Nov. 4, was signed by John Moolenaar, chairman of the House Select Committee on China, Brian Mast of the Foreign Affairs Committee and Rick Crawford of the Intelligence Committee, Taiwan News reported. The chairs want to ask about Huang's association with Alice Huang, a former Megaspeed executive also known as Huang Le, and about how Nvidia protects itself against foreign espionage.

"Recent reports raise significant national security concerns," the chairs wrote, according to Taiwan News. Jensen Huang has until Nov. 11 to accept or propose another date, The Next Web reported, citing the committee's statement. It was not clear whether he would attend. Nvidia did not say when Semafor asked on Friday, according to The Next Web.

The New York Times report and Nvidia's response

The letter follows a New York Times report published Oct. 29. Citing anonymous sources, the Times reported that U.S. spy agencies found in 2025 that Alice Huang had passed information to Beijing while developing a close relationship with Jensen Huang, according to The Hill. Officials were concerned she could be gathering information about Nvidia, the Times reported. It also said officials did not believe Jensen Huang knew she might be collecting information for China, The Next Web said.

The Times further reported that President Donald Trump was briefed about a year earlier and took no further action, according to The Hill. The White House did not immediately respond to The Hill's request for comment. Anonymous sources told the Times that companies associated with Alice Huang have continued to buy Nvidia chips. U.S. officials have also examined whether Megaspeed helped China obtain restricted Nvidia chips, The Next Web reported. Megaspeed said it had hired outside lawyers to look into the claims, according to Forbes, as cited by The Next Web. The Hill said it had contacted Megaspeed and did not report a reply.

Nvidia rejected the allegations. "The diversion allegations against this regional cloud were thoroughly investigated and debunked last year," the company said, according to The Hill. It said regional cloud customers receive "ordinary business information" and no sensitive trade secrets, and that the Chinese government is not seeking its products from regional clouds. Nvidia spokesman John Rizzo told Semafor the company was confident the U.S. government would tell it if any person posed a threat to American industry, The Next Web reported.

In an Oct. 29 interview with Bloomberg, Jensen Huang said Nvidia had reviewed Megaspeed's operations and accounted for all deployments of its GPUs to confirm none had been shipped illegally to China, Taiwan News reported. He described his dealings with Alice Huang as normal business, said she no longer works at Megaspeed and said the U.S. government had not told him of any suspicions. "It was all completely normal and not unusual," he said, according to Taiwan News. The Times reported that he has not received a defensive briefing, The Hill said.

Why Asia is watching

The case centers on a Singapore company, and its Taiwan thread is direct. Taiwanese media released video of Jensen Huang and Alice Huang at a business dinner in May 2025, according to Taiwan News. Congressional scrutiny of its customers in Southeast Asia adds to questions already facing regional data center operators that buy U.S. chips. Capital Times has reported on Nvidia's role in the memory supply chain in Korea, where suppliers depend on its demand.

Congressional pressure on Huang is not new. In June, he declined an invitation from Senator Elizabeth Warren to testify on Nvidia's chip sales to China, The Next Web reported, citing Semafor.

The next markers are Nov. 11, the deadline for Huang to respond to the chairs, and the proposed Nov. 18 briefing.