Aerospace Engineering: The company is not involved in commercial spaceflight.

Aerospace Engineering Announcement: The company's stock has experienced abnormal fluctuations in trading prices for three consecutive trading days on December 12, December 15, and December 16, 2025, with a cumulative deviation of 20%. The company has conducted a self-examination and verified with the controlling shareholder and actual controller, and as of the date of this announcement, there is no significant information that should have been disclosed but was not disclosed. The company's main business is centered around aerospace coal gasification technology, specializing in research and development, engineering design, technical services, complete equipment supply, and engineering general contracting for coal gasification technology and key equipment, not involving commercial aerospace.