Magnesia Division
Calcia Division
1930
October 1933
Magnesia Division
Nichiman Magnesium Co., Ltd. established
June 1935
Magnesia Division
Ube Plant (No. 1 Plant) completed
April 1938
Magnesia Division
Name changed to Riken Metals Co., Ltd.
1940
December 1941
Calcia Division
Nippon Lime, Ltd. established
September 1949
Magnesia Division
Ube Chemical Industries Co., Ltd. established as the second company of Riken Metals
1950
December 1951
Magnesia Division
Ube Chemical Industries merged with Riken Metals
1960
1970
September 1970
Magnesia Division
Listed on Tokyo Stock Exchange (second section), Osaka Stock Exchange (second section), Hiroshima Stock Exchange, and Fukuoka Stock Exchange
September 1971
Magnesia Division
Ube Plant (No. 2 Plant) completed
November 1974
Calcia Division
Chiba Plant completed
1980
October 1986
Calcia Division
New Products Department (currently the Project Planning and Development Division) established
1990
June 1990
Calcia Division
Tokyo Office established
November 1990
Calcia Division
Name changed to CALCEED Co., Ltd.
August 1994
Calcia Division
Listed on Osaka Stock Exchange (second section) and Hiroshima Stock Exchange
Merger of Ube Chemical Industries Co., Ltd. and CALCEEED Co., Ltd.
April 1997
Ube Material Industries, Ltd.
Ube Chemical Industries and CALCEED merged to create Ube Material Industries, Ltd.
2000
April 2003
LIMEGREEN Co., Ltd. established
May 2007
Tohokutekkosha Corporation (currently a consolidated group company) made a wholly-owned subsidiary
March 2009
Mine Logistics Company (currently a consolidated group company) made a wholly-owned subsidiary
2010
May 2013
Entered into a share exchange agreement with Ube Industries, Ltd.
August 2013
Became wholly-owned subsidiary of Ube Industries, Ltd. through a share exchange
April 2016
Limestone business acquired from Ube Industries, Ltd.
September 2016
Ube Materials (Thailand) Co., Ltd. established
2020
April 2022
Parent company's name changed to Mitsubishi UBE Cement Corporation
