Ajinomoto Co. Inc.
Akzo Nobel N.V.
Evonik Industries AG
Sichuan Tongsheng Amino acid Co. Ltd.
KYOWA HAKKO BIO CO. LTD.
Ottokemi
Hefei TNJ Chemical Industry Co. Ltd.
Suzhou Yuanfang Chemical Co. Ltd.
Global Bio-chem Technology Group Company Limited
Ningxia Yipin Biological Technology Co. Ltd.