Singapore held ex-Megaspeed chief's passport for eight months but received no help from the US — CBS News

Eight-month passport retention and no help from Washington

Singaporean authorities seized the passport of Alice Guo, who was then head of Megaspeed, in June 2025, restricting her ability to leave the country for eight months. According to Anadolu, citing CBS News, a source familiar with the situation said on Friday that during Guo's stay in the country, Singapore received little substantive assistance from Washington: American officials did not respond to requests for cooperation, and no significant support has been provided so far. In a statement released this week, the government of Singapore confirmed that it had sought assistance from the US Department of Justice and the FBI.

The essence of the investigation

The investigation into Guo and Megaspeed has been underway since February 2025 on suspicion that the company, in cooperation with California-based Supermicro, exported servers with advanced Nvidia chips to China. According to the CBS News source, in June 2025 Guo, a Chinese citizen, arrived in Singapore from an unspecified location for a voluntary meeting with investigators from the US Bureau of Industry and Security, which is part of the US Department of Commerce and oversees the export of sensitive technologies. Singaporean police questioned her the same day as the American investigators, after which they seized her passport.

Outcome as of February 2026 and the context of the scandal

According to the source, as of February 2026 Singaporean authorities had not filed criminal charges against Guo and were obliged to return her passport. However, she has been permanently banned from re-entering the country: according to the ministry, she provided 'inaccurate information' in order to downplay her connection to Megaspeed. The investigation focuses on whether Guo violated local laws by misrepresenting information about Megaspeed's purchases of servers from San Jose-based Supermicro; these servers are equipped with advanced Nvidia processors used in artificial intelligence, data centers and cloud infrastructure. The Singaporean ministry's statement came four days after Nvidia founder Jensen Huang acknowledged an extramarital affair with a woman whom CBS News sources identified as Alice Guo. A number of media outlets describe her as an alleged Chinese intelligence agent; according to media reports, the scandal prompted Huang to step down as head of the company he had led for more than three decades. These characterizations remain media claims and have not been officially confirmed.