What regional equity trading centers are there in China at present?

By the end of 20 16 and 12, there were 40 regional equity exchange centers in China. Well-known companies include Qianhai Equity Exchange Center, Beijing Equity Exchange Center, Xiamen Cross-Strait Equity Exchange Center, Shanghai Equity Custody Exchange Center, Jiangsu Equity Exchange Center and Guangzhou Equity Exchange Center. The following figure is more intuitive: