Riken Kinzoku K.K. - Ube Factory Caustic Soda Plant

Tokyo Soda Kogyo K.K. - Caustic Soda Plant Toda Plant

Riken Metal Co. Ube Factory

Nissin Chemical Caustic Soda Plant

Mitsui Chemical (Caustic Soda) - Plant Accountability

Toyo Soda Kogyo K.K. - Soda Ash Plant, Tonda Plant

Riken Kogyo K.K. - Amagasaki Plant

Ube Kosan, Ube Tekkosho K.K. - Omine Plant

Nihon Soda K.K., Sunamachi Plant

Nakanishi Kinzoku K.K. - Kawachi Plant

Matsushita Kinzoku K.K., Kyushu Plant - Plant Accountability

Toa Kinzoku Kogyo K.K. - Haruki Plant

List of Authorized Use - Riken Kinzoku K.K. Tokyo Chuzosho

Daido Keikinzoku Kogyo K.K. - Sakai Plant, Mitsuwa Industry Co., Mitsumoto Kinzoku Kogyo - Domyoji Factory, Mitsubishi Kakoki K.K. (chemical Machine) - Sakai Plant

List of Authorized Use - Nippon Kinzoku Sangyo K.K., Machida Factory

List of Authorized Use - Nippon Kinzoku Sangyo K.K. Adachi Factory

Mitsubishi Kinzoku K.K. - Honsha Plant (Matsushita Metal Co. - Head Office Plant)

Riken Kinzoku, Tokyo Chuzosho

Riken Kinzoku (File #170)

Ube Soda Kogyo K

Inoue Kinzoku Kogyo K.K., Masuda Iron Works, Masui Denki K.K. - No. 1 Plant, Masuda Kinzoku Kogyo-sho

400.170: Toa Kinzoku K.K. (Uozumi & Kobe Plant) - Reconversion & Exemption

Ube Soda Industry - Ube: General description of plant. Report No. 49a(36)(b), USSBS Index Section 2

Kato Kinzoku Mokko K.K

Nippon Soda K.K. (File #153)