Xicheng District, Beijing. According to Baidu map, Beijing Guotai Junan Securities Co., Ltd. is located at No.9 Financial Street, Xicheng District, Beijing. Guotai Junan Securities was formed by the merger of former Guotai Securities Co., Ltd. and former Junan Securities Co., Ltd. on August 1999. Company organization The company's three subsidiaries, five branches, 23 regional marketing headquarters and 1 13 business department are located in 28 provinces, autonomous regions, municipalities directly under the Central Government and special administrative regions, and it is one of the largest securities companies with the widest business scope and the widest organization distribution in China.