- Tokyo Head Office
- Sales Dept. No. 1
- Sales Dept. No. 2
- Overseas Sales Department
- Special Products Section
- Ferrous Raw Materials Section
- Specialty Steel Section
- Smart Design Department
- Business Planning Office
- Osaka Office
- Sales Dept. No. 1
- Sales Dept. No. 3
- Hokkaido Branch
- Subsidiaries
- Kyowa Steel Co., Ltd.
- Eiwa Metal Co., Ltd.
- Kenkosya Corporation
