Mitsui Seiki Kogyo K.K., Tokyo Plant

Mitsui Seiki K.K

Oji Seiki Kogyo K.K

Matsumoto Seiki Kogyo K.K

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

412.31 (Inventory Sheets) Oji Seiki Kogyo K.K., Suyari Sangyo K.K. - Nibuno Plant, Kobe Seisakusho - Miki Plant

List of Authorized Use - Mitsui Kogyo Kaisha, Tokyo Plant

Higuchi Seiki Kogyo K.K., Asahi Kiko Co., Asahi Kinzoku Kogyo - Osaka Kojo, Asahi Seiko K.K. - Sakai Plant

List of Authorized Use - Tokyo Juki Kogyo K.K., Tokyo Plant

Mitsui Kagaku Kogyo K.K. (Mitsui Chemical) (File #141)

Mitsubishi Seiki Kogyo K.K. - Seta Works

Mitsui Kagaku Kogyo K.K. (File #142)

412.31; (Inventory Sheets) Mitsubishi Denki K.K. Himeji Plant, 400.170; (Reconversion & Exemption) Showa Seiki Kogyo K.K

Shinsei Kogyo K.K. - Taniyama Plant

Chuo Kogyo K.K., Omori Plant

Chuo Kogyo K.K., Rokugo Plant

Chuo Kogyo K.K., Oji Plant

Chuo Kogyo K.K., Kokubunji Plant

Otani Kogyo K.K. - Amagasaki Plant

Gunze Kogyo K.K. - Yoka Plant

Riken Kogyo K.K. - Amagasaki Plant

Nikkoku Kogyo K.K. (Okubo Plant)

Genkai Kogyo K.K. Plant Accountability

Kotobuki Kogyo K.K. - Kujo Plant

Kotobuki Kogyo K.K. - Jujo Plant