1911
Company established in Ichikawa, Chiba Prefecture. Started production of conduit pipe.

1918
Started manufacturing cold drawn steel tubes

1926
Formed capital/technical alliance with Sumitomo Metal Industries.

1933
Founding: Establishment of Tokyo Conduit Manufacturing K.K. (Predecessor of Toshiba Steel Pipe) (Capital 150,000yen)

1940
Started operations at Amagasaki plant (now Amagasaki Works).

1948
The first domestic electric resistance steel production machine is built and in operation

1951
Listed stock on Tokyo Stock Exchange

1951
Started operating small-diameter (2-inch, 4-inch) electric resistance welded steel tube facility.

1951
Company name changed to Toshiba Steel Pipe K.K.

1959
Sanki Industries K.K. established Daishibashikoujyou Co.,Ltd.

1961
Started operating medium-diameter
electric resistance welded steel
tube facility.

1966
Merged with Chiyoda Steel Pipe K.K.

1966
Company name changed to
Tama Steel Pipe Industries K.K.

1989
Established Seymour Tubing, Inc. (now NIPPON STEEL PIPE AMERICA, INC.)(Indiana, U.S.A.).

1993
Merged with Tama Steel Pipe Industries K.K.

1999
Changed trade name to SUMITOMO PIPE & TUBE CO., LTD.

1994
Merged with the small-diameter electric resistance-welded steel tube division
at the Nagoya Works of NIPPON STEEL CORPORATION changed trade name to
NIPPON STEEL PIPE CO., LTD. and launched the Nagoya Works

2002
Launched Kashima Works.
Acquired stock of Mikkaichi Steel Tube Works (now NIPPON STEEL PIPE FINE TUBE CO., LTD.), creating affiliate.
Integrated Osaka and Wakayama Works, launching Kansai Works.

2003
Entered Chinese market, establishing Guangzhou You-Ri Automotive Parts Co., Ltd.

2006
Established Matsushita Electric Works Steel Pipe & Tube Co., Ltd.
(now Panasonic SPT Co., Ltd.).

2004
Becomes a wholly owned subsidiary of NIPPON STEEL CORPORATION

2007
Kansai Manufacturing Plant established
(business transferred from Fujisaku, K.K.)

2008
Kyushu Works established

2009
Head office moved to Osaki, Shinagawa-ku

2010
Invested in PT Indonesia Nippon Steel Pipe.
Invested in Wuxi NSP Automotive Parts Co., Ltd.(now NIPPON STEEL PIPE WUXI CO., LTD.)

2010
Wuxi NSP Automotive Parts Co.,Ltd. (now NIPPON STEEL PIPE WUXI CO., LTD.) established