ISO Certificate Download
- Head Office
- North Nippon Works Muroran Area
- North Nippon Works Kamaishi Area
- East Nippon Works Kashima Area
- East Nippon Works Kimitsu Area
- East Nippon Works Naoetsu Area
- Nagoya Works
- Kansai Works Wakayama Area (Wakayama / Kainan), Osaka Area (Amagasaki / Sakai)
- Kansai Works Wakayama Area, Osaka Area (Sakai)(ISO14001)
- Kansai Works Osaka Area (Amagasaki)(ISO14001)
- Kansai Works Osaka Area (Osaka)
- Setouchi Works Hirohata Area
- Setouchi Works Hanshin Area
- Yamaguchi Works
- Kyushu Works
- Kyushu Works Yawata Area
- Kyushu Works Oita Area