|1970||Established Taguchi Shoten in Sowa, Ibaraki
|1971||Operation began at Shinjuku Plant.||Dollar Crisis recession|
|1974||Incorporated as Taguchi Metals Corporation
Made Shinjuku Plant the head plant.
|1977||Operation began at Ibaraki Plant (Kitatone Industrial Park)
Established Japan Recycling Metals Co., Ltd.
(Nippon Saisei Kinzoku).
|1978||Established Taguchi Sansho Co. Ltd.|
|1980||10th Anniversary of Taguchi Metals|
|1983||Constructed the Taguchi Metals Group Building (Nakaochiai, Shinjuku Ward)|
|1987||Sowa Plant relocation (sold and relocated from the Kitatone Industrial Park). 60-ton weigh station|
|1988||Dissolved Japan Recycling Metals Co., Ltd.|
|1989||Operation began at Tsukuba Plant. 60-ton weigh station|
|1990||Established Yokohama Office.|
|1992||Closed Yokohama Office.|
|1993||Established nonferrous metal sorting plant at Ibaraki (Sowa) Plant|
|1996||Installed guillotine press at Tsukuba Plant|
|1998||Operation began at Ibaraki New Yard (present Koga Plant). 80-ton weigh station|
|2000||Obtained a general construction work license
|2001||Obtained a right to direct sales to Tokyo Steel
Manufacturing Co.,Ltd. Utsunomiya Plant.
Obtained tender single qualification for every ministry and agency (Grade A).
|2002||Obtained an industrial waste treatment license for Tsukuba Plant.
Closed the head plant (for the construction of Metropolitan
Expressway Central Circular Shinjuku Route).
|2003||Registered disassembly business (Ibaraki pref.)
Constructed Ibaraki New Yard office building and plant building (present Koga Plant).
|2004||Obtained ISO 14001 certification
<4 locations: head office, Koga Plant, Sowa Plant and Tsukuba Plant>
Obtained an automobile demolition and recycling
license for Tsukuba Plant.
|2005||Obtained a certification for recycled material export to China.
Changed plant names due to city/town mergers.
<Koga Plant (former Ibaraki new Yard) and Sowa Plant
(former Ibaraki Plant)>
Registered as an industrial waste recycler
|2007||Operation began at the 2nd Koga Plant.
Operation began at Okazato Plant.
Steel and aluminum can processing plant established, Guillotine press installed.
80-ton weigh station
|2008||Okazato Plant office building is completed|
|2009||All offices obtained ISO 14001 certification
(new for Okazato and the 2nd Koga Plants)
|2010||Additions and renovation of the 2nd Koga Plant building.
Installed nonferrous metal sorting plant.
|2011||Installed 100kw solar power generation equipment at the Okazato Plant
Installed a second sorting line equipment and an air gravity separator at the 2nd Koga Plant
Obtained an industrial waste treatment license for Okazato Plant.
|2012||Rebuilt office, and installed 80-ton weigh station and radiation detector at Tsukuba plant.
Installed neodymium extraction machine and core shearing machine at Sowa Plant.
|2013||Installed 111.6 kilowatts solar energy generation equipment at Koga Plant.
Installed 184.3 kilowatts solar energy generation equipment at the 2nd Koga Plant.
Installed 154.3 kilowatts solar energy generation equipment at Tsukuba Plant.
Installed magnetic eddy current separation equipment.
Installed 1000-ton Guillotine and constructed the building to house Guillotine at Tsukuba Plant
|2014||Installed a metal separator
Installed a color metal sorting machine
|2016||The former Sowa Plant moved into the site of Okazato Plant and changed the name to Koga Okazato Group.|
|2017||Installed scrap metal crusher at Okazato Plant.|
|2018||Installed x-ray metal sorting machine and wind power metal sorting machine at the 2nd Koga Plant.|