関東デーバースチール株式会社

Osaka Iron & Steel Co.,Ltd. established.

Merged with Yodogawa Cast Steel Co.,Ltd.

Constructed new small section mill in Amagasaki Works to commence production of wire rods.

Constructed new small section mill in Kyobashi Works to commence production of wire rods and steel bars.

Constructed new medium section mill in Kyobashi Works to commence production of shape steel.

Listed stock on Osaka Stock Exchange.

Constructed No. 1 blast furnace in Nishijima Works, located in Nishi-yodogawa-ku, Osaka.

Listed stock on Tokyo and Nagoya Stock Exchanges.

Constructed two new converters in Nishijima Works.

本社を大阪市北区梅田町8に移転（西阪神ビル）。

Constructed No. 2 blast furnace in Nishijima Works. No. 1 blast furnace ceased operation.

Constructed No.1 continuous casting machine in Nishijima Works.

Merged with Otani Jukogyo Co.,Ltd.; changed company name to Godo Steel, Ltd.; Steel producing bases were organized into three: Osaka, Tokyo and Amagasaki Works.

Merged with Japan Iron‐Sand Steel Co.,Ltd. and Koto Seiko Co.,Ltd. to establish Himeji Works as the fourth steel producing base.

Closed Amagasaki Works.

Constructed No. 2 continuous casting machine in Osaka Works.

Replaced wire rod rolling mill in Osaka Works with new mill.

Closed Tokyo Works.

Constructed new 70 ton electric furnace in Osaka Works.

Constructed No. 3 continuous casting machine in Osaka Works.

Merged with Funabashi Seiko Co.,Ltd. to integrate steel production bases into three: Osaka, Himeji and Funabashi Works.

No. 2 blast furnace in Osaka Works ceased operation.

Three Works obtained ISO9001 certification.

本社を大阪市西淀川区西島に移転。

Ceased operating steel bar production line in Osaka Works.

本社を大阪市北区土佐堀町に移転（東洋紡ビル）。

Established cooperative sales company, Tokyo D・B Steel Co., Ltd. jointly with Tokyo Tekko Co., Ltd.

Established Metal Stock Co.,Ltd.

Three Works obtained ISO14001 certification.

Formed business alliance with Sanko Seiko Co., Ltd.

Replaced rolling mill in Funabashi Works with new mill.

Strengthened collaboration with Nippon Steel Corporation.; became its affiliated company, accounted for by equity method.

Moved Tokyo Office to Marunouchi, Chiyoda-ku, Tokyo.

Held shares mutually with Kyoei Steel, Ltd.

Acquired shares of Mitsuboshi Metal Industry Co., Ltd. (as a majority owned subsidiary).

Constructed new direct rolling (DR) in Funabashi Works.

Tokyo D・B Steel Co., Ltd. - dissolution.

Introduction of executive officer system; Reinforcement and completion of the auditor system.

Consolidated subsidiary Mitsuboshi Metal Industry Co., Ltd. became complete subsidiary.

TOKAI STEEL CORPORATION became complete subsidiary.

Asahi Industries Co., Ltd. became a consolidated subsidiary by tender offer.

Established cooperative sales company, Kanto D-Bar Steel Corporation. jointly with Asahi Industries Co., Ltd.

本社を大阪市北区梅田に移転：（JPタワー大阪）。

Godo D-Bar Engeneering Corporation. became complete subsidiary.