Aerospace Engineering: Does not involve commercial spaceflight and space-related businesses.

Space engineering issues a risk warning notice for stock trading. The company specializes in the research and development of gasification technology and key equipment, engineering design, technical services, complete equipment supply, and general contracting. The company's products and technologies are mainly used in the clean and efficient utilization of coal, with customers mainly concentrated in the chemical industry. It does not involve commercial aerospace or aerospace-related businesses.