Steel Division

• Aiko Co., Ltd.
• Awaji Steel Pipe Co., Ltd.
• Denkishizai Co., Ltd.
• Furushou Sangyou Co., Ltd.
• Igeta Sunrise Pipe Corp.
• Itoh Kozai Co., Ltd.
• Izumi Kohan Industry Inc.
• J. S. Processing Co., Ltd.
• MMI Co., Ltd.
• Mitsuhashi Kozai Co., Ltd.
• Miyashin Corp.
• NS Architectural Steel Services Corporation
• NS Kenzai Hanbai Co., Ltd.
• NS Resource Net
• NS-Stainless Corp.
• NSM Coil Center Co., Ltd.
• NST Coil Center Co., Ltd.
• NST Construction Co., Ltd.
• NST Kanto Coil Center Co., Ltd.
• NST Machinery Service Co., Ltd.
• NST Mechanical Tubular Products Sales Co., Ltd.
• NST Nagoya Coil Center Co., Ltd.
• NST Okuhira Steel Co., Ltd.
• NST Special Steel Co., Ltd.
• NST System Buildings Co., Ltd.
• NST Wire & Welding Co.,Ltd.
• Ricwil Japan Ltd.
• Santoku Seiken Co., Ltd.
• Shin-ei Kiko Co., Ltd.
• TAIYO-SAKAKO CORPORATION
• Tetsusho Kayaba Corp.
• Tokyo Seisen Co., Ltd.
• Tomakomai Steel Center Co., Ltd.
• Urayasu Construction Materials Center Co., Ltd.

Industrial Supply & Infrastructure Division

• Exedy SB Hyogo Co., Ltd.
• Kashii Co., Ltd.
• M.I.K. Corp.
• MDI-SB Solar Co., Ltd.
• NIPPON STEEL TRADING METALS Co., Ltd.
• NIPPON STEEL TRADING Matex Co., Ltd.
• NST ARAI Automotive Co., Ltd.
• Tominaga Sangyo Co., Ltd.
• Yoko Industry Co., Ltd.

Foodstuffs Division

• COSMO FOODS CO., LTD.
• Nikkyo Foods Co., Ltd.

Textiles Division

• MN Inter-Fashion Ltd.

Corporate Planning and Administration Division

• NST Agency Co., Ltd.
• NST Information & Communication Systems Co., Ltd.

A

• Aiko Co., Ltd.
• Awaji Steel Pipe Co., Ltd.
• NST ARAI Automotive Co., Ltd.

D

• Denkishizai Co., Ltd.

E

• Exedy SB Hyogo Co., Ltd.

F

• Furushou Sangyou Co., Ltd.

I

• Igeta Sunrise Pipe Corp.
• Itoh Kozai Co., Ltd.
• Izumi Kohan Industry Inc.

J

• J. S. Processing Co., Ltd.

K

• Kashii Co., Ltd.

M

• M.I.K. Corp.
• MDI-SB Solar Co., Ltd.
• MMI Co., Ltd.
• MN Inter-Fashion Ltd.
• Mitsuhashi Kozai Co., Ltd.
• Miyashin Corp.

N

• NIPPON STEEL TRADING METALS Co., Ltd.
• NIPPON STEEL TRADING Matex Co., Ltd.
• NS Architectural Steel Services Corporation
• NS Kenzai Hanbai Co., Ltd.
• NS-Stainless Corp.
• NSM Coil Center Co., Ltd.
• NST Agency Co., Ltd.
• NST Coil Center Co., Ltd.
• NST Construction Co., Ltd.
• NST Information & Communication Systems Co., Ltd.
• NST Kanto Coil Center Co., Ltd.
• NST Machinery Service Co., Ltd.
• NST Nagoya Coil Center Co., Ltd.
• NST Okuhira Steel Co., Ltd.
• NST Special Steel Co., Ltd.
• NST Wire & Welding Co.,Ltd.
• Nikkyo Foods Co., Ltd.

O

• NST Mechanical Tubular Products Sales Co., Ltd.

R

• Ricwil Japan Ltd.

S

• NST System Buildings Co., Ltd.
• Santoku Seiken Co., Ltd.
• Shin-ei Kiko Co., Ltd.

T

• TAIYO-SAKAKO CORPORATION
• Tetsusho Kayaba Corp.
• Tokyo Seisen Co., Ltd.
• Tomakomai Steel Center Co., Ltd.
• Tominaga Sangyo Co., Ltd.

U

• Urayasu Construction Materials Center Co., Ltd.

Y

• Yoko Industry Co., Ltd.