What securities company is Shanghai and Shenzhen Port?

This means that the Shanghai Stock Exchange and the Hong Kong Stock Exchange allow investors from both places to go through local securities companies. Shanghai-Shenzhen-Hong Kong Stock Connect is a trading connection mechanism of China stock market, which connects China mainland stock market (Shanghai Stock Exchange and Shenzhen Stock Exchange) with Hong Kong and allows qualified investors to buy and sell stocks freely between the two markets. Shanghai-Shenzhen-Hong Kong Stock Connect is jointly supervised by China Securities Regulatory Commission and Hong Kong Securities Regulatory Commission.