Changmao Biochemical Engineering Company Limited produces and sells organic acids for the food additive, chemical, and pharmaceutical industries. Its products include maleic anhydride, 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, used as food additives, medical intermediaries, pharmaceutical adjuvants, and active pharmaceutical ingredients. The company also engages in research and development of medicine and nutraceutical products, manufacturing, sale, and trading of organic acid products, general trading, and property holding. Founded in 1992, it is headquartered in Changzhou, China, and operates with its subsidiaries in Mainland China, Europe, the Asia Pacific, the United States, and internationally.