According to the Shenzhen Stock Exchange, on October 9, Yan Jun disclosed through obit’s “short form equity change report”. From April 10, 2018 to November 14, 2019, Yan Jun’s proportion of shares in obit changed from 18.37% to 12.63%, with the cumulative change ratio of 5.73%. Among them, the passive dilution ratio of obit’s shares issued was 2.06%, and the proportion of active reduction through block trading was 3.67%. < p > < p > when the cumulative change in the proportion of obit shares held by Yan Jun reached 5%, he did not perform the reporting and announcement obligations in accordance with the provisions of the administrative measures for the acquisition of listed companies, and did not stop selling obit shares. < p > < p > the Shenzhen Stock Exchange pointed out that Yan Jun’s above-mentioned behaviors violated the provisions of articles 1.4, 2.1 and 11.8.1 in the Listing Rules of GEM stocks (revised in November 2014) and the Listing Rules of GEM stocks (revised in November 2018). The Shenzhen Stock Exchange asked Yan Jun to pay full attention to the above problems, draw lessons from them, rectify them in time, and put an end to the recurrence of the above problems. < p > < p > according to the information disclosed by obit, Yan Jun was born in October 1962, the founder of obit. From March 2008 to February 2017, Yan Jun served as the chairman / general manager of obit, and has been the chairman since February 2017. In addition, he has also served as the director of obit (Hong Kong) Limited and Metro skyways Ltd. Director, urban aeronautics Ltd. Director, director of Shanghai United rare metal trading center Co., Ltd. Founded in March 2000, obit is mainly engaged in the development and production of aerospace electronics, Wiener satellite constellation and satellite big data, artificial intelligence technology, and serves in aerospace, industrial control, geographic information, land and resources, agriculture, forestry, animal husbandry and fishery, environmental protection and transportation, smart city, digital government, modern finance, personal consumption and other fields. In terms of equity structure, the actual controller of obit is the state owned assets supervision and Administration Commission of Zhuhai, and the largest shareholder and controlling shareholder is Zhuhai Gree Financial Investment Management Co., Ltd., with a shareholding ratio of 15.08%. < p > < p > on the evening of September 18, obit announced that it had received the decision on administrative supervision measures issued by Guangdong securities regulatory bureau (No.127, 2020). From August 5 to October 9, 2019, the subsidiary of obit, Guangdong platinum Asia Information Technology Co., Ltd. (hereinafter referred to as “platinum Asia Information”) was involved in a number of arbitration and litigation. Among them, the total amount of RMB 331 million involved in the application for arbitration to repay the creditor’s loan principal and interest and liquidated damages, and the total amount of litigation involving platinum Asia information as the plaintiff was 108 million yuan. The total amount involved in the above arbitration and litigation was 439 million yuan, accounting for 13.71% of the latest audited net assets of obit. Obit did not disclose the above arbitration and litigation matters until October 25, 2019, and the information disclosure was not timely. The above behavior of obit violates the relevant provisions of Article 2 and Article 30 of the administrative measures for information disclosure of listed companies. Yan Jun, as the chairman of obit and Duan Yilong as the Secretary of the board of directors at that time, failed to perform the duty of diligence and due diligence in accordance with the provisions of Article 3 of the administrative measures for information disclosure of listed companies. According to the provisions of Article 59 of the measures for the administration of information disclosure of listed companies, Guangdong securities regulatory bureau decided to issue warning letters to obit, Yan Jun and Duan Yilong.