Aerospace Engineering: Stock trading abnormal fluctuations not related to aerospace business

The aerospace engineering announcement stated that the company's stock had a cumulative deviation of 20% in the closing price over the three consecutive trading days on June 24th, 25th, and 26th, 2026, indicating abnormal volatility. Upon self-inspection, the company's production and operation are normal, and the internal and external environments have not changed, and it is not related to commercial aerospace or aerospace-related businesses. As of the disclosure date of the announcement, there is no significant information that should be disclosed but has not been disclosed. The controlling shareholder, actual controller, and directors and senior executives did not buy or sell company stocks during the period of abnormal volatility. Investors are reminded to pay attention to trading risks.