濮阳惠成：公司业务目前不涉及商业航天材料

Group 1 - The company, Puyang Huicheng (300481.SZ), primarily engages in the research, production, and sales of fine chemicals such as anhydride derivatives and functional material intermediates [2] - The products of the company are widely used in various fields including electronic component packaging materials, electrical insulation materials, wind power, composite materials, and coatings [2] - The company does not currently involve itself in the commercial aerospace materials sector, as confirmed in a response to an investor inquiry [2]