Tianjin "Chaoshan Qiyi Guild Hall". Seven cities in the Seven Cities Guild Hall refer to Chao 'an, Huanggang, Chenghai, Zhang Lin, Huang Liu, Yixi and Tai Po. Then the Chaozhou Club in Tianjin takes the town as the "city". Huang Liu, now Huangliu Town in Fengshun County, actually includes Chabei Town and Pantian Town (which belonged to huangliu town in the Republic of China). Chao 'an refers to the present urban area of Chaozhou (that is, Xiangqiao District). Tianjin Chaoqiyi Club, also known as "Chaobang Club"; Bang, pass "help" Since the mid-Ming Dynasty, China has gradually formed three commercial gangs, namely Chaozhou Commercial Gang, Huizhou Commercial Gang (Anhui Province) and Shanxi Commercial Gang, formerly known as Chaobang, Huizhou Commercial Gang and Shanxi Commercial Gang. Chaobang mainly does business by sea, Jinbang mainly operates in North Asia and Central Asia, and Huibang operates in the Yangtze River basin and other places.