The US believes that Thailand's OBON Corp assisted in the smuggling of NVIDIA chips to Alibaba.

      U.S. prosecutors suspect that a company central to Thailand's national AI strategy played a role in transferring billions of dollars worth of Nvidia-equipped Supermicro servers to China, with Alibaba being one of the final customers, according to a Bloomberg report from Friday. The company in question is OBON Corp., an AI infrastructure firm based in Bangkok, which has been a public partner in Thailand's National AI Strategy and has established itself as a regional provider of cloud and supercomputing services.

      Bloomberg’s sources indicate that OBON is the "Company-1" mentioned in the March 2026 federal indictment of Supermicro co-founder Yih-Shyan “Wally” Liaw and two associates. Liaw was arrested in March on charges of conspiring to violate the Export Controls Reform Act and faces a potential sentence of up to 20 years for the leading charge. Prosecutors allege that he and a varying group of brokers utilized the Southeast Asian intermediary to purchase and reroute approximately $2.5 billion of servers between 2024 and 2025, employing falsified shipping documents, altered serial numbers, and dummy servers to evade inspections. Neither OBON nor Alibaba has been charged at this time, and both are described in Friday's reporting as endpoints in the diversion chain, with U.S. prosecutors continuing to investigate their roles. Neither company had commented by the time of publication.

      The Friday report highlights three significant aspects. First, it shifts the geographic focus. While the March indictment referred to Southeast Asia in general, naming a specific Thai company places the diversion on the map in conjunction with a national AI policy that the U.S. has otherwise acknowledged as a partnering initiative. Last year, Thailand sought allocations for chip imports under Washington’s tiered framework, implicitly indicating that its computing resources would not be re-exported.

      Second, it addresses the customer side. Alibaba’s Aliyun cloud and DAMO research division have been prominent state-aligned purchasers of advanced AI computing in China. The 2025 export control regulations have placed Alibaba on watch lists that explicitly restrict its access to high-end Nvidia components. If the sources from Bloomberg are accurate, the company received these components regardless, through a route designed to simulate legitimate Thai sovereign demand.

      Third, it raises concerns about corporate accountability at Supermicro. The company has consistently characterized the indicted individuals as a small group acting outside its compliance framework. CEO Charles Liang reiterated this stance publicly in May after the company’s audit committee initiated an internal review. Friday’s report does not mention additional Supermicro employees but intensifies inquiries into how the significant volumes involved passed through the company’s own export-control checks over two years.

      Why this case is significant

      The $2.5 billion indictment against Supermicro is the largest U.S. enforcement action related to the AI export-control regime to date, with the dollar amount reflecting the current market values of Nvidia hardware. Chinese grey-market prices for the B300 have reached $1 million, approximately double its retail price, highlight a market capable of large-scale arbitrage; the disparity between the U.S. allocated prices and those cleared for China funds the brokers and freight forwarders that enable such schemes.

      This case is situated within the broader context of the U.S.-China chip-equipment standoff. Washington has implemented both export controls and inbound-investment regulations to diminish Chinese access to sophisticated computing technologies; simultaneously, the White House is pushing to prevent the reverse engineering of advanced AI models trained on U.S. infrastructure in Chinese labs. Each of these efforts is challenging to enforce on its own and becomes more complicated when sovereign partner programs are involved.

      Consequently, hardware-level countermeasures have risen on the policy agenda. Proposals regarding hardware-level chip tagging, phone-home location verification, and post-shipment audit rules have all gained traction among the working group reviewing these controls. However, none of these measures would have effectively detected a paperwork-and-reflagging scheme; they would only increase the operational costs associated with such operations. The investigation now spans from Bangkok to Hangzhou, raising the question of whether future controls will treat partner-state programs as trusted recipients or as additional layers that need verification.

      What’s next?

      Liaw’s case is set for a status conference in early summer. Bloomberg suggests that the prosecution may introduce new defendants as the connection to OBON is further investigated. Thai officials have not publicly addressed their cooperation with the U.S. investigation, although Thailand’s Ministry of Digital Economy and Society has previously indicated it expects partner companies to adhere to exportcontrol regulations.

      For Supermicro, the immediate challenge is not another indictment but a growing corporate governance issue. The internal review by the audit committee is open-ended, and the company has acknowledged that it will reassess its customer concentration within the Southeast Asia market. Shares have fallen about 33% in the months following Liaw's arrest. The Friday report did not significantly affect stock prices in pre-market trading.

      For Nvidia, this case represents more of a distraction than a direct threat