A Bloomberg investigation has identified Bangkok-based OBON Corp. as the unnamed Southeast Asian intermediary ('Company-1') at the center of a sprawling alleged scheme to divert $2.5 billion worth of Super Micro Computer servers packed with restricted Nvidia AI chips to Chinese end users, including Alibaba Group. US prosecutors charged Super Micro co-founder Yih-Shyan 'Wally' Liaw along with two associates in March 2026 with conspiring to evade export controls by routing the hardware through OBON and a rotating cast of third-party brokers. While OBON has ties to Thailand's national AI infrastructure initiatives—including the launch of sovereign cloud provider Siam AI—Siam AI's CEO Ratanaphon Wongnapachant has stated he departed OBON prior to founding the new entity and that Siam AI had no involvement.

This case illuminates deeper structural weaknesses in Washington's export control regime. Since 2022, the US has barred sales of advanced Nvidia AI accelerators to China over national security concerns, yet the persistence of sophisticated smuggling networks through third countries like Thailand demonstrates how legitimate regional AI buildouts can be co-opted. Nvidia CEO Jensen Huang's December 2024 appearance at a Siam AI sovereign AI event underscores the tension: promoting AI adoption in Southeast Asia while attempting to wall off China creates gray zones ripe for exploitation. Reuters and other outlets note this could be among the largest documented violations since the curbs began, potentially damaging Thailand's fledgling AI ambitions and prompting renewed calls in Washington to tighten controls on the entire region.

The scheme's sophistication—reportedly involving fake servers, manipulated shipping labels, and layered intermediaries—highlights the booming black market for AI technology. As Chinese firms face compute shortages, they turn to covert acquisition channels that bypass official denials and compliance promises. This episode connects to broader US-China tech decoupling dynamics, where export controls intended to slow Beijing's military-civil fusion instead accelerate underground innovation and strain alliances with nations eager for their own 'sovereign AI' capabilities. Supermicro shares initially plunged on the charges but later recovered, while Nvidia has reiterated expectations that partners maintain strict compliance. Without addressing transshipment vulnerabilities in allied nations, such controls may prove performative rather than prohibitive.