The Four Seas Gang, or FSG (四海幫, or Si Hai Bang) is a triad society based in Taiwan. It includes mainland Chinese and their descendants who fled to Taiwan with the KMT. The Four Seas Gang has an estimated membership 10,000 in Taiwan. Its members have extended their influence to cities in the southern region of California. Its American constituents are a branch off of the original Taiwan society. There are also smaller factions that are merely street gangs, warring with other gangs of low notoriety. Four Seas Gang is active in alien smuggling in Southern California. Their territories are mainly Los Angeles and Santa Ana California. They use the color grey for their individual clothing for the gang. Historical leadership Boss (official and acting) 1954-1962 — "Big Feng" Feng Chu-yu 1971-1986 — "Wei-Min" Liu Wei-min 1986?-1994? — "King Tsai" Tsai Kuan-lun 1990?-1994? — "Big Bao" Chen Yung-ho 1994?-1997 — "King Chao" Chao Ching-hua Acting 1997-2000 — "Kuang-Nan" Yang Kuang-nan 2000-2008 — "Old Chia" Chia Jun-nien 2008-2010 — "Kid Chang" Chang Chien-ying 2010-2012 — "Young Kay" Yang Yu-pin 2012-2021 — "De-Yun" Yang Te-yun 2021-present — "Chun-Wei" Chang tsun-wei Organization Since the 1950s development, Four Seas Gang organization has 86 branches, members and partner relations up to 50,000 people. External links Organized Crime in California Asian Organized Crime - Australian Parliamentary Inquiry Repatriated gang chief sentenced to 22 months Taiwan's gangs go global The Ultimate Arbitrator Police in Shanghai arrest Taiwanese criminal gang head Taipei Times Staff Writer (Nov. 9, 2000). Chang's son stabbed by a member of the Four Seas gang in an elevator (April 1998). Chinese gangs Gangs in California Gangs in Asia Organized crime groups in Taiwan Street gangs Triad groups Asian-American gangs