Aerospace Engineering: The stock price has a large short-term increase, and the shareholder reduction plan has not been fully implemented.

The aerospace engineering announcement stated that the company's stock had a cumulative deviation in the closing price for three consecutive trading days from December 19 to 23, 2025, reaching 20%. On the 24th, it continued to hit the limit up, with an increase of 80.38% since December 1, and the turnover rate was significantly higher than before. The company's latest rolling price-earnings ratio is 84.53, and the price-to-book ratio is 4.80, significantly higher than the industry average. The company's products and technologies are mainly used in the clean and efficient utilization of coal, not involving commercial aerospace. In addition, shareholder Guochuang Investment Guidance Fund and Beijing Guochuang New Energy Vehicle Equity Investment Fund plan to reduce their holdings by no more than 16.0797 million shares, and by the announcement date, the reduction plan has not been fully implemented.