
Passionate – Dedicated – Professional
About Dowa Corporate
We have been developing heat treatment technologies for more than half a century. As an industrial furnace manufacturer and expert in heat treatment processing, we have been meeting customers’ needs that have become more diversified and sophisticated with each passing year. Now, we boast top-class results in Japan. DOWA Thermotech proactively develops overseas business and is now steadily expanding our business by taking advantage of our comprehensive support system that covers development/manufacturing, maintenance, and commercial heat treatment processes.
We are focusing on building our domestic foundation as a heat treatment manufacturer, aggressively expanding our business overseas at the same time, and establishing “DOWA Thermo” as a global brand in our role as a reliable partner to our customers.
Dowa’s History
| 1958 | Tokyo Heat Treatment Co., Ltd. established. Yokohama plant commenced operations. Yokohama factory commenced operations. |
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| 1968 | Nagoya factory commenced operations. |
| 1973 | Moka 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 | Chukyo 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. |
| 2013 | 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. |
Passionate – Dedicated – Professional
Explore Your Next US
Career Opportunity!
While our Bowling Green facility has been operating since 1997, DOWA’s history dates back to 1884, when our predecessor, Fujita Gumi, acquired the Kosaka mine from the Meiji government in Japan.
Our core values serve as the foundation of our organization, guiding everything we do. Each value is intentionally chosen and aligned to foster the work environment we strive to achieve.
Our employees are our greatest asset, and we are committed to their well-being. That’s why we offer one of the best benefits packages in the industry, providing comprehensive support and rewarding career growth.
Call us for inquiry : Monday to Friday : 9 am – 5 pm

