History
Fudo Tetra Corporation
| October 2006 | With Fudo Construction Corporation as the surviving company, Tetra Corporation and Fudo Construction Corporation merged and change trade name to Fudo Tetra |
|---|---|
| July 2011 | Moved headquarters from Osaka to Chuo-ku, Tokyo |
| August 2011 | Delisted stock from Osaka Securities Exchange |
| April 2018 | Merged with Toa Civil Engineering Co., Ltd., |
| October 2020 | Acquired all stock of Aichi Base Industry Group making it a subsidiary |
Fudo Construction Corporation
| January 1947 | With construction as the primary business objective, established Takita No Kumi Co., Ltd. in Osaka |
|---|---|
| September 1949 | Registered as a construction business operator under the Construction Business Act |
| November 1956 | Changed trade name to Fudo Construction Corporation |
| December 1958 | Established Tokyo Headquarters |
| August 1961 | Listed stock on the Osaka OTC Market |
| October 1961 | Listed stock on the Second Section of the Osaka Securities Exchange Market |
| May 1962 | Listed stock on the Second Section of the Tokyo Stock Exchange Market |
| December 1962 | Established Nagoya Branch (currently Chubu Branch) |
| July 1964 | Established Kyushu Branch |
| February 1967 | Transferred stock listing to the First Section on each stock exchange |
| October 1970 | Established Osaka Headquarters |
| June 1971 | Established Fudo Construction Research Co., Ltd. (currently KEN KEN Co., Ltd.) |
| July 1976 | Established Fudo Heavy Machinery Co., Ltd. (currently Soil Technica Co., Ltd.) |
| December 1988 | Changed fiscal year-end from September 30 to March 31 |
| March 2004 | Transferred operations of construction business to Nakano Corporation Transferred all stock in Fudo Construction Research Co., Ltd. (currently KEN KEN Co., Ltd.) to Phoenix Capital Co., Ltd. Tetra Corporation receives capital increase via a third-party allotment, making it a subsidiary |
| February 2005 | Established Fudo Construction Inc. in California, the United States |
Tetra Corporation
| May 1961 | With production and sales of tetrapods, and design and installation of the construction thereof as the primary business objectives, established in Chuo-ku, Tokyo |
|---|---|
| June 1961 | Registered as a construction business operator under the Construction Business Act |
| March 1966 | Moved headquarters to Minato-ku, Tokyo |
| May 1969 | Established Tsuchiura Technical Center (currently Comprehensive Technology Research Center) in Tsuchiura, Ibaraki Prefecture |
| July 1972 | To change stock par value, merged with Shutoken Printing and Binding Co., Ltd. (Koto-ku, Tokyo) as the surviving company, and changed trade name to Nippon Tetrapod Co., Ltd. |
| November 1972 | Listed stock on the Second Section of the Tokyo Stock Exchange Market |
| July 1981 | Moved headquarters to Shinjuku-ku, Tokyo |
| April 1993 | Established Tetra Trading Co., Ltd. (currently Welfare Trading Co., Ltd.) |
| September 1993 | Transferred stock listing to the First Section of the Tokyo Stock Exchange Market |
| October 1995 | Changed trade name to Tetra Corporation |
| October 1999 | Established Shuwa Construction Co., Ltd. (currently Takahashi-Shuwa Construction Co., Ltd.) |
| July 2003 | Moved headquarters to Minato-ku, Tokyo |
| March 2004 | Received a capital increase from Fudo Construction Corporation via a third-party allotment, becoming its subsidiary |
| January 2005 | Acquired all stock of Tripole Co., Ltd., making it a subsidiary |
| September 2006 | Acquired all stock of Toa Civil Engineering Co., Ltd., making it a subsidiary |