1. Supervision letter to Liu Weichao, director and deputy general manager of Guangzhou Sie Consulting Co.Ltd(300687) gem supervision letter [2021] No. 204 Liu Weichao: according to the announcement on the implementation progress of the share reduction plan of the joint actual controller disclosed on October 12, 2021 by Guangzhou Sie Consulting Co.Ltd(300687) (hereinafter referred to as ” Guangzhou Sie Consulting Co.Ltd(300687) “) , you sold 787100 shares of the company’s shares on September 30, with an average reduction price of 22.91 yuan / share. On October 29, Guangzhou Sie Consulting Co.Ltd(300687) disclosed the third quarter report of 2021. As a director and deputy general manager of Guangzhou Sie Consulting Co.Ltd(300687) , the above reduction occurred within 30 days before the disclosure of the third quarter report of Guangzhou Sie Consulting Co.Ltd(300687) 2021, which constitutes a transaction in a sensitive period. Your above behavior violates articles 1.4 and 2.3.1 of the GEM Listing Rules (revised in December 2020) and the guidelines for the standardized operation of GEM listed companies (revised in 2020) Section 3.8 Article 15. Please pay full attention to the above problems, draw lessons, make timely rectification and prevent the recurrence of the above problems. Our department reminds you that the directors, supervisors and senior managers of listed companies must strictly abide by the national laws and regulations, the gem stock listing rules (revised in December 2020) and the guidelines for the standardized operation of GEM listed companies (revised in 2020) and other relevant provisions of the exchange, and buy and sell stocks in accordance with the regulations. 2 the gem company management department is hereby notified on December 15, 2021