Japan Reinforcement Contractors Association(ZENTEKKIN)
Regular Members
Hokkaido/Tohoku
- Hokkaido Rebar Industry Cooperative Association
- Aomori Rebar Industry Cooperative Association
- Iwate Rebar Industry Association
- Miyagi Rebar Construction Industry Cooperative Association
- Akita Rebar Construction Industry Cooperative Association
- Yamagata Rebar Construction Industry Association
- Fukushima Rebar Industry Cooperative Association
Kanto
- Ibaraki Rebar Industry Cooperative Association
- Tochigi Rebar Construction Industry Association
- Gunma Rebar Industry Association
- Saitama Rebar Industry Cooperative Association
- Chiba Rebar Industry Cooperative Association
- Tokyo Rebar Industry Cooperative Association
- Cooperative Association Tokyo Rebar Construction Industry Association
- Kanagawa Rebar Industry Cooperative Association
- Yamanashi Rebar Work Cooperative Association
- Nagano Rebar Industry Association
Hokuriku
- Niigata Rebar Industry Cooperative Association
- Toyama Rebar Construction Industry Cooperative Association
- Ishikawa Rebar Industry Cooperative Association
- Fukui Rebar Cooperative Association
Chubu
- Gifu Rebar Association
- Shizuoka Rebar Industry Cooperative Association
- Aichi Rebar Industry Cooperative Association
- Mie Rebar Work Association
Kinki/Kansai
- Kansai Rebar Industry Cooperative Association
- (Shiga,Kyoto,Osaka,Hyogo,Nara,Wakayama)
Chugoku/Shikoku
- Tottori Rebar Cooperative Association
- Shimane Rebar Construction Industry Cooperative Association
- Okayama Rebar Cooperative Association
- Hiroshima Rebar Association
- Yamaguchi Rebar Industry Cooperative Association
- Rebar Industry Tokushima Cooperative Association
- Tokushima Rebar Construction Industry Cooperative Association
- Kagawa Rebar Industry Cooperative Association
- Ehime Rebar Industry Cooperative Association
- Kouchi Rebar Industry Cooperative Association
Kyushu/Okinawa
- Fukuoka Rebar Industry Cooperative Association
- Saga Rebar Construction Industry Cooperative Association
- Nagasaki Rebar Construction Industry Cooperative Association
- Kumamoto Rebar Construction Industry Cooperative Association
- Ōita Rebar Construction Industry Cooperative Association
- Miyazaki Rebar Industry Association
- Kagoshima Rebar Industry Association
- Okinawa Rebar Industry Cooperative Association
Partner companies
- (General Incorporated Association) Kanto Rebar Work Cooperative Society Company Union
- (General Incorporated Association) Tōkai Rebar Cooperative Society
- (General Incorporated Association) Kansai Rebar Industry Subcontractor Union
- (General Incorporated Association) Kyūshū Rebar Construction Industry Cooperative Society