Asahi Kasei
Denki Kagaku Kogyo
Fujifilm
Kao Corporation
Kuraray
Mitsubishi Chemical Holdings
Mitsui Chemicals
Nippon Kayaku
Nippon Soda
Nissan Chemical Industries
Nitto Denko
Shin-Etsu Chemical
Shiseido
Shōwa Denkō
Sumitomo Chemical
Tokuyama
Tosoh
Ube Industries