Changmao Biochemical Engineering Company Limited, together with its subsidiaries, produces and sells organic acids for food additive, chemical, and pharmaceutical industries in Mainland China, Europe, the Asia Pacific, America, and internationally. The company 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