Our Group Companies
Domestic group companies
Note : Figures in parentheses ( ) indicate percentage of stock owned by the Yamato Kogyo Group.
Yamato Steel Co., Ltd.（100％）
| Business | Manufacture and sales of steel products and heavy industry products |
|---|---|
| Location | 380 Kibi, Otsu-ku, Himeji, Hyogo Pref. 671-1133 |
| Established | October 2003 |
| Capital | 450 million yen |
| President | Yasuhiko Yamauchi |
| Fiscal Year End | March 31 |
| Website | https://www.yamatokogyo.co.jp/steel/en/ |
Yamato Trackwork System Co., Ltd.（100％）
| Business | Manufacture and sales of trackwork materials |
|---|---|
| Location | 380 Kibi, Otsu-ku, Himeji, Hyogo Pref. 671-1133 |
| Established | April 2002 |
| Capital | 310 million yen |
| President | Motoyoshi Maruyama |
| Fiscal Year End | March 31 |
| Website | https://www.yamatokogyo.co.jp/kidou/en/ |
Yamato Shoji Co., Ltd.（81.82％）
| Location | Himeji, Hyogo Pref. |
|---|---|
| Established | Mar 1962 |
| Business | Transportation and medical waste treatment |
| Website | http://www.yamato-shoji.com/ *Japanese version only |
Kibi Co., Ltd.（32.53％）
| Location | Himeji, Hyogo Pref. |
|---|---|
| Established | Dec 1961 |
| Business | Material handling at ports, etc. |
| Website | https://www.big-advance.site/c/169/1337 *Japanese version only |
Himeji Tekko Refine Co., Ltd.（50.00％）
| Location | Himeji, Hyogo Pref. |
|---|---|
| Established | Feb 1974 |
| Business | Industrial waste refining |
| Website | https://himeji-tr.co.jp/ *Japanese version only |
Matsubara Techno Co., Ltd.（81.82％）
| Location | Kakogun, Hyogo Pref. |
|---|---|
| Established | Apr 1928 |
| Business | Manufacture of counterweights and storage tanks |
| Website | https://www.mbrtechno.co.jp/ *Japanese version only |
*100% of stock owned by Yamato Shoji Co., Ltd.
Hyoki Kaiun Kaisha, Ltd.（19.95％*）
| Location | Kobe, Hyogo Pref. |
|---|---|
| Established | Dec 1942 |
| Business | Domestic shipping, ocean shipping (conventional ships), port transport, warehousing, customs clearance, international intermodal transport, etc. |
| Website | https://www.hyoki.co.jp/ |
*As of July 1, 2025
Overseas group companies
Note : Figures in parentheses ( ) indicate percentage of stock owned by the Yamato Kogyo Group.
Nucor-Yamato Steel Company（49.00％）
| Location | U.S.A |
|---|---|
| Established | February 1987 |
| Business | Manufacture and sales of steel products |
| Website | http://www.nucoryamato.com/ |
Arkansas Steel Associates LLC（50.00％）
| Location | U.S.A |
|---|---|
| Established | September 1989 |
| Business | Manufacture and sales of trackwork materials |
| Website | http://www.arkansassteel.com/ |
Siam Yamato Steel Co., Ltd.（64.18％）
| Location | Thailand |
|---|---|
| Established | April 1992 |
| Business | Manufacture and sales of steel products |
| Website | https://www.syssteel.com/ |
YK Steel Corporation（30.00％）
| Location | South Korea |
|---|---|
| Established | November 2002 |
| Business | Manufacture and sales of steel products |
| Website | https://en.ykscorp.kr/ |
SULB Company BSC(c)（49.00％）
| Location | Bahrain |
|---|---|
| Established | February 2009 |
| Business | Manufacture and sales of steel products |
| Website | http://www.sulb.com.bh/ |
United SULB Company (Saudi Sulb) LLC（49.00％）
| Location | Saudi Arabia |
|---|---|
| Established | June 2011 |
| Business | Manufacture and sales of steel products |
POSCO YAMATO VINA STEEL JOINT STOCK COMPANY（49.00％）
| Location | Vietnam |
|---|---|
| Established | March 2020 |
| Business | Manufacture and sales of steel products |
| Website | https://www.pyvina.com/ |
PT Garuda Yamato Steel（80.00％）
| Location | Indonesia |
|---|---|
| Established | May 2024 |
| Business | Manufacture and sales of steel products |
| Website | https://www.garudayamatosteel.com/ |