Gelonghui May 9 丨 Kaisheng New Materials (301069slotparkfreecodes.SZ) said on the investor interaction platformslotparkfreecodes, the company has not yet directly produced trimellitic anhydride (TMA) products. Currently, the company purchases trimellitic anhydride products for synthesizing trimellitic anhydride acid chloride products, and is mainly used downstream in medicine, medical treatment, new materials and other fields.