Selection criteria:

(1) Companies listed in the "List of 2021 CBT 500 Listed Companies ".

(2) Abide by the law, be honest and trustworthy, and have not been punished or taken any regulatory measures by securities regulatory authorities and exchanges in the past three years.

(3) In the past three years, there have been no incidents that caused major adverse social impacts.

(4) Agree with the development concept of the China Business Top 100 Forum and the Top 500 Enterprises, and actively participate in the projects and activities organized by the CBT 100 Forum.