Singapore’s government said on Thursday the United States had provided little help in its investigation into Alice Huang, the woman at the center of a spy plot that has led to the investigation of Nvidia’s chief executive, Jensen Huang.
Singaporean authorities held Ms. Huang’s passport to prevent her from leaving the country from June 2025 until February over “potential false declarations” in relation to her company, Megaspeed, which is based in the country, the government said in a statement. She was ultimately released with a “stern warning” and barred from re-entering Singapore.
The statement raises new questions about the response of the Trump administration to the case and why the U.S. government did not more forcefully intervene. According to the timeline in the statement, Singaporean authorities had been holding Ms. Huang’s passport well after President Trump was briefed last fall about her relationship with Nvidia’s chief executive and the belief that she was a Chinese intelligence asset.
The New York Times has reported that Taiwan began monitoring Ms. Huang in 2024 at the guidance of the U.S. government.
In its statement, Singapore said that it had sought information from an American server maker and close Nvidia business partner, Supermicro, but that the company had been uncooperative. Supermicro, a firm that packages Nvidia’s A.I. chips onto servers that can be used in data centers, has been at the center of a number of chip smuggling investigations across the globe.
Supermicro was a supplier to Megaspeed, a company incorporated in Singapore and run by Ms. Huang, according to two people with knowledge of the matter.
Singapore said in the statement its authorities raised Supermicro’s “limited cooperation” with the U.S. Department of Justice and Federal Bureau of Investigation in July 2025 and “requested their assistance in securing the company’s cooperation.”
“Despite these repeated requests, Singapore has to date received limited information or assistance in respect of the company,” the statement said.
Supermicro did not immediately respond to a request for comment.
During questioning, Ms. Huang sought to downplay her role in Megaspeed, according to Singapore’s statement. She was ultimately released because of “insufficient evidence relating to the possible inaccurate declarations for which Megaspeed was being investigated.”
She was issued a “stern warning” and barred from re-entering Singapore. The country’s police are continuing to investigate Megaspeed.
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