| 1941 | Establishment of company |
|---|---|
| 1950 | Concluded a technical aassistiance agreement with Sharples Corp. of the U.S. and initiated the manufacture and sale of centrifuges |
| 1952 | Obtained distribution rights for various synthetic resins, Columbia activated carbon and other products from Union Carbide Corp. of the U.S. |
| 1969 | Opened Sagami Factory in Yamato, Kanagawa Prefecture |
| 1970 | Entered environmental protection field, manufacturing equipment for processing industrial waste water, municipal sewage and similar applications |
| 1983 | Opened New York office |
| 1988 | Opened first overseas branch office in Seoul (to be followed by Taipei in 1990, Hong Kong in 1991, Jakarta in 1998 and Beijing in 2004) |
| 1989 | Established a joint venture, Shenzhen Stella Plastics Co., Ltd., in Shenzhen, Guangdong Province, China, for coloring and compounding plastics |
| 1990 | Completion of the XM1006 horizontal-style Decanter, boasting the world’s highest sewage-processing capacity, and beginning of operation at Morigasaki garbage disposal site in Tokyo |
| 1996 | Registered over-the-counter trade of shares with Japan Securities Dealers Association |
| 1997 | Completed TRV875 vertical Decanter, the world’s largest device of its kind for the manufacture of teraphthalic acid |
| 1999 | Opened Shonan Factory in Hiratsuka in Kanagawa Prefecture |
| 2000 | Opened Technology Center in Shinagawa in Tokyo |
| 2001 | Established a joint venture, Interstella Plastics(Shenzhen)Co. Ltd. in Shenzhen, Guangdong Province, China, for coloring and compounding plastics. |
| 2003 | Tomoe Engineering (Suzhou) Co., Ltd. was established in Suzhou, Jiangsu Province, to provide IC mounting services in China. |
| 2004 | Registered on the second section of Tokyo Stock Exchange. |
| 2004 | Established Tomoe Engineering (Hong Kong) Co., Ltd., in Hong Kong. |
| 2005 | Alternative listing to the First Section of Tokyo Stock Exchange. |
| 2006 | Established Tomoe Engineering (Shanghai) Co., Ltd., in Shanghai. |
| 2007 | Relocated Head Office to Osaki, Shinagawa-ku,Tokyo. |
| 2009 | Opened Chicago Office |
| 2012 | Opened Kunshan Office |
| 2012 | Established Tomoe Trading (Shenzhen) Co., Ltd., in Shenzhen, Guangdong Province, China. |
| 2013 | Established Tomoe Engineering USA, Inc. in Liberty, Texas, U.S.A. . |
| 2015 | Relocated Head Office to Kitashinagawa, Shinagawa-ku,Tokyo. |
| 2015 | Established TOMOE Trading (Thailand) Co.,Ltd. in Bangkok, Thailand. |