In 1969, the Hang Seng Index was introduced as a public service. The index is now generally known as the indicator of the Hong Kong stock market. Hang Seng Bank was listed on the Hong Kong Stock Exchange in 1972. In 1981, Hang Seng Bank was given permission to run branches in MTR stations. Hang Seng Bank began to extend its business to China. in 1985, with the opening of a representative office in Shenzhen. 10 years later, Hang Seng Bank opened its first Chinese branch in Guangzhou.