Alvin Chau, former chairman of Suncity Group, was arrested in November 2021 on a warrant based on accusations that he ran an illegal cross-border gambling syndicate with others.
Macao prosecutors accused Chau and some co-defendants of running a syndicate that caused a loss of about US$1 billion in tax revenue to the city's government between 2013 and 2021. They were alleged to have made illegitimate profits through operating side-betting activities. Chau faced nearly 290 charges in one of the gambling hub's biggest criminal cases in years.