His international network and extensive relationships underscore the global nature of the tech industry, which has made it a challenge for the US to enforce its export restrictions. Wei, 49, is one of three men charged by Singapore authorities of masking the real destinations of hundreds of millions of dollars of American computer servers they purchased.
The Chinese-born entrepreneur at the centre of a Singapore server-computer fraud case helps to run more than a dozen companies with ties to tech leaders including AI-chip provider Nvidia Corp., serving clients in the island state and markets such as Malaysia.
Alan Wei Zhaolun, a naturalised Singaporean who owns or helps to manage at least 15 firms including Aperia Cloud Services and A-Speed Infotech Pte., spent more than two decades building his businesses in Asia, according to the city-state’s corporate registry. They operate in fields such as computers and data networks, according to the database.

