Space development: There are no significant matters that should be disclosed but have not been disclosed

Aerospace Development announces abnormal changes, with the closing price of the company's stock deviating by over 20% for two consecutive trading days. According to the relevant provisions of the Shenzhen Stock Exchange Trading Rules, this qualifies as abnormal stock trading fluctuations. In response to the abnormal stock trading situation, the company conducted an investigation and consulted with the actual controlling shareholder China Aerospace Science and Industry Corporation Limited and the controlling shareholder China Aerospace System Engineering Limited. The company has not found any recent public media reports that may or have had a significant impact on the trading price of the company's stock. There are no undisclosed significant matters regarding the company by its actual controlling shareholder, controlling shareholder, or the company itself that should have been disclosed.