Sun On Yee is a Chinese organized crime syndicate based in Hong Kong. It is one of the largest and most influential triads, involved in various illegal activities such as drug trafficking, extortion, and money laundering. The group has a complex hierarchy and is known for its secretive nature. Founded in the late 19th century, Sun On Yee has a rich history and has evolved over time. It has established connections with other criminal organizations and has a significant presence in both local and international markets. The triad is often associated with the Chinese diaspora and has been depicted in various films and media.