Criminal gangs are found throughout China but are most active in Chongqing, Shanghai, Macau, Tianjin, Shenyang, and Guangzhou as well as in Hong Kong, Malaysia, Singapore and Taiwan. The number of people involved in organized crime on the mainland has risen from around 100,000 in 1986 to around 1.5 million in the year 2000.
The following is a list of Chinese criminal organizations.