Securities code: 002260 securities Name: * ST deo Announcement No.: 2022-017 Dea General Aviation Holding Co.Ltd(002260) announcement on delaying the reply to the letter of concern of Shenzhen Stock Exchange. The company and all members of the board of directors guarantee that the contents of the announcement are true, accurate and complete without false records, misleading statements or major omissions. On February 8, 2022, Dea General Aviation Holding Co.Ltd(002260) (hereinafter referred to as "the company") received the attention letter on Dea General Aviation Holding Co.Ltd(002260) issued by Shenzhen Stock Exchange (attention letter [2022] No. 128 of the company department, hereinafter referred to as "the attention letter"), The company is required to explain the matters related to the receipt of the notice on terminating the recommendation of Dea General Aviation Holding Co.Ltd(002260) resumption of listing from the sponsor of resumption of listing, Federal Reserve Securities Co., Ltd. (hereinafter referred to as "Federal Reserve securities"). The company attaches great importance to the issues involved in the letter of concern and actively organizes the reply work. Due to the heavy workload involved in the above-mentioned related matters, up to now, the reply to the letter of concern has not been completed, and the reply could not be submitted to the exchange on February 10, 2022. Upon application to Shenzhen Stock Exchange, the company will postpone the completion of the reply and disclosure of the above concern letter. The company is expected to submit a reply to the attention letter to Shenzhen Stock Exchange and disclose it before February 17, 2022. The company solemnly reminds investors that the information disclosure media designated by the company are securities times and cninfo( http://www.cn.info.com.cn. ), all information of the company is subject to the information published in the above designated media. Please pay attention to relevant announcements, invest rationally and pay attention to risks. It is hereby announced. Dea General Aviation Holding Co.Ltd(002260) board of directors February 11, 2022