Changmao Biochemical Engineering Co., Ltd. engages in the production and trade of organic acids. It offers fumaric acid, maleic acid, L-malic acid, D-malic acid, DL-malic acid, L(+)-tartaric acid, D(-)-tartaric acid, DL-tartaric acid, L-aspartic acid, and aspartame which are usually used in food additives and medical intermediaries. The company was founded by Xin Sheng Rui on December 3, 1992 and is headquartered in Changzhou, China.