1953 .
Toshia Igarashi established Toei Chemicals (later name changed to DIPSOL in 1968)
1965 .
DIPSOL developed the first alkaline cyanide free Zinc process worldwide
1976.
Cyanide free zinc technology was successfully exported to Europe and USA
1978.
Developing and market introduction of a neutral Tin-Zinc Alloy process
1984.
Hidesato Igarashi overtake the CEO position from his father ;
Extension of the Research and Development Center
1988.
Joint Venture in the USA
2005.
Foundation of DIPSOL in Thailand and China
2006.
Sachiko Igarashi is appointed the Chairperson of the board of directors
2008.
Foundation of DIPSOL Shanghai
2014.
Foundation of DIPSOL Mexico
2016.
Foundation of DIPSOL Europe GmbH in Düsseldorf
2016.
17 subsidiaries in 12 countries;
over 600 employees, more than 50 in R&D