• AGC Inc.
• Aoki Oil Industrial Co., Ltd.
• Asahi Chemical Co., Ltd.
• Atotech Japan K.K.
• Chou Silika Co., Ltd.
• Dai Nippon Toryo Co., Ltd.
• Daikyo Chemical Co., Ltd.
• Dailite Co., Ltd.
• Daito Chemical Co., Ltd.
• Daiwa Special Chemical Co., Ltd.
• Fuso Chemical Co., Ltd.
• Futamura Chemical Co., Ltd.
• GODO Co., Ltd.
• HighChem Company, Ltd.
• Hodogaya Chemical Co., Ltd.
• Hokko Chemicals Co., Ltd.
• Honcho Chemical Inc.
• INGREDION JAPAN K.K.
• Japan Cornstarch Co., Ltd.
• JELEAF INC.
• Kao Corporation
• Kawasaki Kasei Chemicals Ltd.
• KAWASE INDUSTRY Co. Ltd
• Matsumoto Yushi-seiyaku Co., Ltd.
• MEISEI CHEMICAL WORKS, LTD.
• Mikiriken Industrial Co., Ltd.
• Mitsubishi Chemical Corporation
• Mitsubishi Corporation
• Mitsubishi Corporation Life Sciences Limited
• Mitsubishi Gas Chemical Company, Inc.
• Mitsubishi Shoji Chemical Corporation
• Mitsui Chemicals, Inc.
• Mizutani Paint Co., Ltd.
• Musashino Chemical Laboratory, Ltd.
• Nankai Chemical Co., Ltd.
• Nihon Kagaku Sangyo Co., Ltd.
• Nihon Shokuhin Kako Co., Ltd.
• Nihon Suiken Co., Ltd.
• Nippon Chemical Industrial Co., Ltd.
• Nippon Shinyaku Co., Ltd.
• NIPPONKAYAKU FOOD TECHNO CO., LTD.
• Nitoms Inc.
• NM Salt Corporation
• Ogawa & Co., Ltd.
• Omichi Seiyaku Co., Ltd.
• Osaka Gas Chemicals Co., Ltd.
• Osaka Soda Co., Ltd.
• Otsuka Chemical Co., Ltd.
• Rasa Koei Corporation
• Roki Techno Co., Ltd.
• Sakai Chemical Industry Co., Ltd.
• Sanyo Chemical Industries, Ltd.
• Seiken Chemical Co., Ltd.
• Sekisui Chemical Co., Ltd.
• Shin-Etsu Chemical Co., Ltd.
• Shiraishi Calcium Kaisha, Ltd.
• Showa Denko K.K.
• Showa Kako Corporation
• Sinloihi Co., Ltd.
• Stella Chemifa Corporation
• Sumitomo Chemical Co., Ltd.
• Taihei Chemical Industrial Co., Ltd.
• TAISHO TECHNOS CO., LTD.
• Taki Chemical Co., Ltd.
• Terada Chemische Fabrik
• Yoneyama Kagaku Kogyo Kaisha, Ltd.
• Yoneyama Yakuhin Kogyo Co., Ltd.