- 1951.04
Toyo Kotetsu Co., Ltd. was established in Kamesawa, Sumida-ku, Tokyo.
- 1960.09
The Warabi Plant was constructed in Warabi, Saitama, and equipped with leveling and shearing machinery.
- 1969.04
A coil slitting line was installed at the Warabi Plant.
- 1973.04
The company’s first plant was constructed in the Urayasu Steel Complex in Chiba, and a press blanking line was installed.
- 1983.12
The Head Office was relocated to 72 Minato, Urayasu, where a new head office building and plant were constructed.
- 1997.12
A 1,500-ton press line was installed at the Urayasu Plant.
- 2002.04
A tailor-welded blank line was installed.
- 2003.04
The steel sheet processing division obtained ISO 9001 certification.
- 2004.04
A new 800-ton press blanking line was installed.
- 2004.06
A second tailored blank machine was installed.
- 2004.09
Stainless steel processing by slitting began.
- 2005.07
Slitter products with an inner diameter of 610 mm became available for processing.
- 2013.01
The tailor-welded blank business was discontinued, partly due to the impact of the Great East Japan Earthquake.
Blanking of thick-gauge steel with center holes became available, helping major automotive manufacturers reduce production costs.
- 2014.12
A fiber-laser combination machine was installed.