The four major securities refer to China Galaxy Securities Co., Ltd., Everbright Securities Co., Ltd., Great Wall Securities Co., Ltd., and Guotai Junan Securities Co., Ltd. The details are as follows:

1. China Galaxy Securities Co., Ltd.: Founded in January 2007, the company is a leading comprehensive financial service provider in China's securities industry, with operations in more than 20 countries and regions around the world. In August 2016, China Galaxy Securities ranked 481st among the "Top 500 Chinese Enterprises 2016". On May 28, 2021, China Galaxy Securities Co., Ltd. was included in the "white list" of the first batch of securities companies.

2. Everbright Securities Co., Ltd.: Founded in 1996, it is one of the first three innovative pilot securities companies and one of the first 17 Class A securities companies approved by the China Securities Regulatory Commission. The ranking of transaction size and the ranking of individual business departments over the years have always led the industry.

3. Great Wall Securities Co., Ltd.: Founded in November 1995, it is the 15th fund management company approved by the China Securities Regulatory Commission. In 1997, the People's Bank of China rated Great Wall Securities as an advanced unit for internal risk control. In February 2003, the company obtained the qualification of a Class A member of the 2003 treasury bond underwriting syndicate in the stock exchange market.

4. Guotai Junan Securities Co., Ltd.: Merged and established on August 18, 1999, it is a long-term, sustainable and comprehensive leading comprehensive financial service provider in China's securities industry. From 2011 to 2018, Guotai Junan's operating income ranked among the top three in the industry for eight consecutive years. In 2020, Guotai Junan won the "Sustainable Development and Inclusiveness Award" of the 2020 "Finance" Evergreen Award.