|October 1965||Started business as Mochizuki Kogyosho in Fuji City.|
|May 1974||Moved the company to its current location in Fujinomiya City.|
|May 15, 1975||Capital : 3 million yen. Established Mochizuki Kogyosho.co.Ltd.|
|February 1994||Increased capital to 10 million yen.|
|February 1995||New factory extension.|
|November 2002||Quality management system ISO9001 : 2000 registered.|
|December 2004||Ashigara office opened.|
|December 2005||Environmental management system ISO14001 : 2004 registered.|
|May 2006||Capital increased to 20 million yen.|
|June 2006||Yoshida Office opened.|
|October 2006||Construction Permit : Piping construction
Changed from general to specific.
Additional application for Machinery and Equipment Installation Business.
|September 2009||Quality Management System ISO9001 : 2000
Environmental Management System ISO14001 : 2004 Returned
Restructured as M system.
|February 2010||Additional applications for construction permits, electrical construction and fire facility construction.|
|December 2013||Toyama office opened.|
|February 2010||Acquired Hanoi Plant Engineering Company Vietnam as a subsidiary.|
|March 2014||Grouped with Kyoden Plant Construction.CO.LTD.|
|September, 2015||Additional application for a construction permit and building construction business.|
|February, 2016||Toyama office and Hanoi Plant Engineering closed.|
|November, 2009||Quality management system
ISO 9001 : 2015 registered.
|October 2019||Construction Permit, additional application for roofing, waterproofing, and thermal insulation business.|
|September 2021||Grouped with Hikari System.CO.LTD.|