Home > About Us > MKK History

MKK History (Maruichi Kokan / headquarter in Japan)

1926 "Maruichi Production" founded as a bicycle parts company.
1935 Started producing bicycle steel pipes.
1940 Company name changed to "Maruichi Steel Tube Works" and separated from its bicycle parts division.
1947 "Maruichi Steel Tube Ltd." established.
1956 "Maruichi Kohan Ltd." founded.
1957 Osaka Plant commissioned.
1958 Tokyo Office opened. Electric tube welding system imported from Abby Etona Co.
1960 Nagoya Office opened.
1961 Tokyo Plant commissioned.
1962 Company listed to the Tokyo and Osaka Stock Exchange (2nd board).
1964 Company listed to the Tokyo and Osaka Stock Exchange (1st board). Fukuoka Office opened.
1965 Sakai Plant commissioned.
1966 Nagoya Plant commissioned. Hiroshima Office opened.
1970 "Hokkaido Maruichi Steel Tube Ltd." founded. Sapporo Office opened.
1972 Sakai Pole Plant commissioned. Osaka office opened.
"Indonesia Steel Tube Works Ltd. (ISTW)" founded.
1973 Tokyo No.2 Plant commissioned.
1974 "Shikoku Maruichi Steel Tube Ltd." founded. "Kyushu Maruichi Steel Tube Ltd." founded.
1977 Nagoya Plant No.2 (current Nagoya Plant) commissioned.
"Tachibana Industry Co., Ltd." and "Shikoku Maruichi Steel Tube Ltd." merged.
1978 Main office relocated to present address, Kitahorie, Nishi-ku, Osaka.
Maruichi American Corporation (MAC) established.
1989 Takuma Plant commissioned.
1995 Kashima Pole Plant commissioned. Tokyo No.2 Plant renewal completed.
1998 Sapporo Plant consolidated to Tomakomai Plant under Hokkaido Maruichi Steel Tube Ltd.
2000 Hiroshima Office and warehouse opened.
2001 Annealing facilities built in Takuma Plant.
2002 Tokyo No.2 Plant new warehouse constructed. Hamamatsu's new warehouse completed.
2003 New warehouse and cutting factory opened in Nagoya Plant.
2004 Kyushu Maruichi Steel Tube Ltd. renewal completed.
2005 New factory opened in Tomakomai Plant of Hokkaido Maruichi Steel Tube Ltd.
2006 New warehouse opened in Nagoya Plant.
Maruichi Metal Product Co., Ltd.(MMP) founded in Foshan, China.
Sun Steel Corporation (Vietnam) joins Maruichi Steel tube Group.
2007 New warehouse opened in Okayama warehouse.
New plant built in Sakai plant.
SEIKEI STEEL TUBE CORPORATION (Japan) joins Maruichi Steel Tube Group.
2008 Leavitt Tube Company, LLC (IL, USA) joins and became one of subsidiary companies of Maruichi Steel Tube Ltd.
Sun Steel Joint Stock Company became one of subsidiary companies of Maruichi Steel Tube Ltd.
Sakai Plant renewal completed.
2009 MARUICHI KUMA STEEL TUBE PRIVATE LIMITED (India) has become one of subsidiary companies of Maruichi Steel Tube Ltd.
Sakai Production Facility of Seikei Steel Pipe Corporation founded.
Additional acquisition of stocks in Alpha Metal Co., Ltd. (Japan).
2010 16"mill built in SUNSCO (Vietnam)
Sun Steel (Hanoi, Vietnam) Co., Ltd. founded.
J-Spiral Steel Pipe Co., Ltd. joins Maruichi Steel Tube Group.
2011 Maruichi Metal Product (China, Tianjin) founded opened.
Mechanical structure steel tube mill at Tokyo No.2 Plant founded opened.
No.2 factory mill at Sakai Pole Plant founded opened.
2012 Maruichi Metal Product( China, Wuhan) founded opened.
No.2 and No.3 factory mill at Tokyo No.2 Plant founded opened.
Maruichimex (Mexico) Co., Ltd. founded.
2013 Megasolar Power Plant has started operation in Takuma Plant.
Sun Steel Co., Ltd. Started operation No.2 CGL ・CCL
2014 Tokyo Plant and Tokyo No.2 plant completed consolidating
2015 Maruichi Oregon Steel tube founded