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

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

Toa Kinzoku Kogyo K.K. - Haruki Plant

Harada Shiki Shokki K.K. (Daido Kogyo K.K.) - Katano Plant

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

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

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

Osaka Forging Co., Kokoku Ind. Co., Mitsubishi Mokushitsu Kogyo K.K. - Chishimacho Plant

Nippon Aluminum Kogyo K.K. (Mitsubishi Light Metal Mfg. Co.) - Mikuni Plant

Nippon Keigin Kogyo K.K., Koha Machine Tool K.K., Japan Paper Control Co., Teikoku Chukosho - Himejima Plant

Taihei Kogyo K.K. (Mitsubishi Mining Co., Ltd.) (File #274)

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

Asahi Chemical Industry Co., Ltd., Nobeoka Factory - Plant Accountability

Hirose Iron Works, Hirano Bearing Mfg. Co., Minato Electric Co., Daido Kogyo Co. - Mikuni Plant

Matsushita Electric Ind. Co. - Koriyama Plant, Hirose Jukogyo K.K. - Wakae Plant, Minami Orimono Co., Matsushita Shipbuilding Co. - Sakai Plant

List of Authorized Use - Nisshin Industry Co., Ltd. Itabashi Plant (Kakuwa Kokuki Kogyo K.K.)

Asia Tetsu-gyo K.K., Koyo Mfg. Co. - Hanaten Plant, Koyo Kogyo Co., Araya Industrial Co. - Steel Foundry

Minato Electric Machine Ind. Co., Osaka Heavy Ind. Co. - Kanzakigawa Plant, Osaka Sanso Kogyo Co., Saeki Kikai Kogyosho

List of Authorized Use - Oi Plant, Nippon Kogaku Kogyo K.K. (Japan Optical Industry Co., Ltd.)

Mitsubishi Denki K.K. - Wakayama Kojo, Misugi Iron Works, Kano Manufactory, Matsushita Electric Ind. Co. - Juso Plant

400.170 (Reconversion & Exemption) Osaka Kagaku Kogyo K.K. - Inagawa Plant, Taiyo Cement-earth Mfg. Co. (Related to Nihon Seitetsu)

Japanese Cotton Millowners' Association, Japan Controlling Association on Hardware for Building, Tagawa Hiroshi Kinzoku K.K., Sumitomo Electric Ind. Co. - Okajima Plant