Our history

Our history

1958 Tokyo Heat Treatment Co., Ltd. established.
Yokohama plant commenced operations.
Yokohama factory commenced operations.
1968 Nagoya factory commenced operations.
1973 Mohka plant commenced operations.
1981 Shiga plant commenced operations.
1985 Licensing of technology to HIGHTEMP FURNACES, LTD. (INDIA)
1987 Toyota plant commenced operations.
Hamamatsu plant (former Tenryu Netsushori Kogyo Co., Ltd.) commenced operations.
1990 Handa plant commenced operations.
1991 Merged with DOWA MINING CO., LTD. DOWA Thermotech business operational headquarters established.
1997 DOWA THT AMERICA, INC. established.
2006 Holding company system implemented. (DOWA MINING CO., LTD. changed its name to DOWA Holdings Co., Ltd.)
CEMM Co., Ltd. joined Dowa Group.
2008 DOWA THERMOTECH (THAILAND) CO., LTD. established
Ota plant commenced operations
Headquarters relocated to Nagoya-shi, Aichi.
2010 Kunshan Dowa Thermo Furnace Co., Ltd. established.
2011 Development center established in Nagoya headquarters.
Acquired a controlling interest of HIGHTEMP FURNACES, LTD. (INDIA)
2012 PT. DOWA THERMOTECH INDONESIA established.
PT. DOWA THERMOTECH FURNACES established.
2015 Hamamatsu-kita plant commenced operations.
DOWA THERMOTECH MEXICO, S.A. de C.V. established.
2016 New construction of heat treatment processing plant in Hamamatsu-kita plant.
2017 Research and development center established in Hamamatsu-kita plant.