Mine event in Thailand on Sat 9th May 2026

Chinese National Held Near Pattaya With C4 Vests, Three Passports, And Training Clips From Cambodia

Thai police arrested a 31-year-old Chinese national, Sun Mingchen, after a search of his rented house off Huai Yai in Bang Lamung turned up nearly 5kg of C4, three bulletproof vests, two M16 assault rifles, four Russian POMZ-2 anti-personnel mines, grenades of Korean, Burmese, and other origin, remote detonators, gas masks, and four jerry cans of gasoline. Some of the 5.56mm rounds carried the LOT RTA marking from the Royal Thai Army Ammunition Plant. The Royal Thai Police Commissioner-General has ordered a full investigation. The Chinese Embassy, Immigration, EOD, and national security agencies are all involved.

According to The Pattaya News, Sun's phone contained training videos of him handling firearms and grenades alongside Cambodian soldiers at BHQ 911 - a military bodyguard unit. The same phone reportedly held ChatGPT queries about attacking "important locations" and the destructive power of C4. Daily News describes the phone evidence in broader terms, citing search history on sabotage methods, explosives, and weapon modification, with the training clips linked to overseas locations now under verification.

Sun holds passports from China, Cambodia, and Dominica, the last reportedly investment-linked, plus a Thai pink non-citizen ID, a Thai national ID number, and a registered address in Khlong Sam Wa, Bangkok. He has been in Thailand since 2020, mostly on tourist visas, and re-entered on 27 January 2026 on an elite visa. He had been renting the Bang Lamung house for two years at 38,000 baht a month, and previously lived in Chiang Mai. Sun told police he ran a liquor shop in Cambodia before moving to Thailand. Police say they are still tracing how he obtained the passports, the IDs, the weapons, and the explosives.

Sun told officers he was depressed and had bought the cache through online groups with pickup in Rayong, planning to use it on himself. Investigators are not buying it. The arrest started with a single-vehicle crash near Na Jomtien on Friday evening; Sun was in the car with a 33-year-old Taiwanese woman, Ma Yu-Hsin. Police searched the vehicle, found a Glock 26 with magazines, and obtained a warrant for the Bang Lamung residence. Both are in custody.