1994.01
Founded Hakki Sangyo Limited company（capital 3,000,000yen）
1996.06
Added capital up to 20,000,000yen
Changed to corporation
Changed to corporation
1996.08
Moved head office to Oimachi, Shinagawa-ku, Tokyo
2004.03
Acquired ISO14001
2004.04
Set up a branch in Kusatsu in Shiga pref.
2007.04
Moved head office to Minami-Shinagawa, current address
2008.09
Set up Nikko branch in Nikko, Tochigi pref
2011.06
Acquired ISO9001