History
| April 2002 | Established SC Steel Trade Co., Ltd. Launched agency service for international steel sheet business of Sumitomo Corporation. |
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| April 2003 | Founded Summit Steel Corporation. Launched agency service for stainless steel and specialty steel businesses of Sumitomo Corporation. |
| July 2004 | Company renamed Sumisho Steel Corporation by merging Summit Steel Corporation and SC Steel Trade Co., Ltd. |
| April 2005 | Launched agency service for automotive metal products business of Sumitomo Corporation. |
| August 2012 | Established Kansai Office. |
| April 2013 | Launched agency service for plate & construction products, railway products and non-ferrous products & metals businesses of Sumitomo Corporation. |
| April 2016 | Established Chubu Office. Company renamed Sumitomo Corporation Global Metals Co., Ltd. by merging Sumisho Steel Corporation and SC Tubulars Co., Ltd. |
| April 2018 | Transferred metal product business related to steel sheets and strips, automotive steel sheets, wire rods and specialty steel, plates, construction steel products, mechanical tubular products and specialty tubular products from Sumitomo Corporation. Terminated agency service for railway products and non-ferrous products & metals businesses of Sumitomo Corporation. |
| April 2021 | Re-launched agency service for railway products businesses of Sumitomo Corporation. |
| April 2023 | Established Chugoku Office. |