
BANGKOK — A Taiwanese national wanted by authorities for fraud has been arrested in Bangkok, where he was running an extensive call center scam operation using sophisticated SIM box networks across Thailand.
Mr. Chun Shen Liao, 37, from Taichung City, Taiwan, who had an active arrest warrant issued in Taiwan on January 11, 2025, was apprehended on February 2 at his luxury condominium in Bangkok’s Huai Khwang district. Police seized computers, mobile phones, and CCTV recording devices during the raid.
The arrest came after Thai police investigated multiple fraud complaints from vendors in Samut Prakan, Trang, and Ubon Ratchathani provinces. The investigation led officers to discover an illegal signal distribution network in the Ramkhamhaeng area, where they seized 15 SIM box devices used for routing international scam calls through local Thai cell towers.

According to police investigators, Chun orchestrated the operation by paying Thai accomplices 100,000 baht per location to rent rooms and install SIM boxes. Four Thai nationals have been arrested in connection with the scheme, which involved receiving equipment shipped from China and Cambodia.
During interrogation, Chun revealed his extensive background in transnational fraud operations. He previously worked as a supervisor for multinational call center scams in a neighboring country, where he managed operations targeting Thai and Taiwanese victims. His role earned him 25,000 baht monthly plus a 0.5% commission on successful scams, including 185,000 baht from a single operation that defrauded Thai victims of 37 million baht.
The investigation uncovered that Mr. Chun had built his criminal network through connections made during his previous incarceration in Thailand. After serving a 10-year sentence at Klong Prem Prison for credit card fraud until his release in 2020, he maintained contact with fellow inmates who later became accomplices in his SIM box operation.
Thai police are now coordinating with Taiwanese authorities regarding potential extradition, as Chun faces multiple fraud charges in Taiwan related to scam operations and money mule networks.
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