According to case files, this criminal ring, headquartered in Phnom Penh (Cambodia), comprised at least 78 members with a sophisticated hierarchical structure.
The ring was run by a group of individuals responsible for supervision, personnel training, and providing scam scripts. The ring even established a specialized department to launder money through cryptocurrency.
The gang's primary tactic was making phone calls, impersonating government officials or bank employees to defraud Singaporean citizens.
Authorities determined that between September 2024 and September 2025, this ring committed at least 528 crimes, stealing up to S$52.5 million.
In the case of Yip Chee Ming, the investigation revealed that in October 2024, through the persuasion of an acquaintance, he agreed to join the ring. On November 21, 2024, Yip was paid for his travel to Cambodia by Tang Soon Wah – one of the ringleaders.
At the operating base, Yip was tasked with making fraudulent calls with a promised income of $1,800 USD/month (paid in cryptocurrency) plus a 1% commission on the stolen money from victims. However, after three days of unsuccessful activity, Yip was fired by Tang and all internal communication data was deleted on November 23, 2024.
Although his time in the ring was short and he did not directly steal any assets, Yip's actions were still determined to be complicity in a criminal organization. On September 9, 2025, the suspect was arrested in Singapore in a joint operation between the Singapore Police and the Cambodian National Police.
In connection with this operation to dismantle the drug ring, authorities have prosecuted 12 suspects, including 9 Singaporean citizens, 2 Malaysian citizens, and 1 Filipino citizen.