Hang Seng Bank is a commercial bankwhose major business activities include retail banking, wealth management, commercial banking, treasury services, and private banking.[2] Hang Seng Bank operates a network of around 260 service outlets in Hong Kong.[2] It also has a wholly owned subsidiary in mainland China, Hang Seng Bank (China) Limited, which has a network of 46 branches and sub branches.[3]

It established the Hang Seng Index as a public service in 1969 and this stock market index is now generally known as the primary indicator of the Hong Kong stock market