|Company Name||Sunouchi Corporation|
|Headquarters and Factories||Second Iron and Steel Complex, 46 Minato, Urayasu-shi,
Chiba 279-0024 Japan
Telephone: +81-47-353-8751 Fax: +81-47-353-5381
|Sales Offices||Higashi-Hiroshima Warehouse, Osaka Sales Office, and
West Japan Sales Office
|Establishment||April 1, 1984|
|Capital||20 million yen|
|Representative||Seiichiro Baba, President|
|1914:||Isaji Takasuka founded a steel material dealer, Takasuka Isaji Shoten Co., Ltd., in Itachibori, Osaka.|
|1923:||Opened Tokyo Branch in Kyobashi, Tokyo.|
|1928:||Renamed as Takasuka Shoten, succeeded by Etsuichi Takasuka, and the head office placed in Tokyo.|
|1950:||Reorganized as Sunouchi Shoten Corporation, with sales offices opened in Omiya and Hachioji.|
|1965:||Constructed a plant in Iron and Steel Complex, Urayasu, and started partial processing and slit processing for CT and H section steel.|
|1978:||Started manufacturing steel end tabs.|
|1984:|| Newly established Sunouchi Corporation and separated the manufacturing and sales of end tabs and other products.
|1990:||Started manufacturing and sales of ceramic tabs and backing materials.
|1992:||Established West Japan Sales Office and Osaka Sales Office.
|1995:||The Great Hanshin-Awaji Earthquake led to an increase in demand for backing materials and end tabs.
|1996:|| Imported ceramic tabs and gouging carbons from China.
|2002:||Started manufacturing and sales of Kadopita, a product developed by Nippon Steel Metal Products Co., Ltd.
|2004:||Started selling a backup material for vessels jointly developed with WUHAN TIANGAO WELDING CO.,LTD.|
|2007:||Established Rushan City Xuzhisheng Special Ceramics Co.,Ltd., in Shandong Province, China, for the manufacturing of ceramic products.
|2008:||Established Higashi-Hiroshima Plant for the manufacturing of steel products.
|2009:||Established Ayase Warehouse.|
|2011:||Expanded Higashi-Hiroshima Plant after the occurrence of the Great East Japan Earthquake.
|2016:||Started development of ceramic backing materials for reinforcing bar joints.
|2017:||Started sales of ceramic backing materials for reinforcing bar joints.