History
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June 1975 | Established Shintsurukai Kosan Co., Ltd. with ￥10 million in capital. Engaged in on-site operation, afforestation/civil engineering business, commercial business, electric measurement business, and golf business. |
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November | Newly established a golf driving range "Tsurukai Modern Golf Center". |
| June 1981 | Increased the capital to ￥20 million. |
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May 1985 | Newly established the head office building and the electric measurement division's head plant. |
| June | Increased the capital to ￥40 million. |
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June 1988 | Newly established the semiconductor No. 1 plant. |
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January 1990 | Newly established the precision sheet-metal plant. |
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May 1995 | Newly established the mechatronics plant and machining plant. |
| November | Opened Yokkaichi Office. |
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April 1999 | Established joint venture in Taiwan. |
| May | Established a local corporation in Malaysia. | |
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November | Newly established the semiconductor No. 2 plant. |
| January 2000 | Electric measurement (div.) Obtained ISO9001 certification. | |
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March | Newly established Ebisudo plant. |
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April | Changed the company name to STK Technology Co., Ltd. |
| December | Opened Tokyo Office. |
| June 2001 | Increased the capital to ￥181 million. | |
| July | Opened Fukuoka Office. |
| September 2003 | Semiconductor (div) Obtained ISO14001 certification. |
| March 2004 | Semiconductor (div) Obtained ISO9001 certification. |
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May 2005 | Newly established the semiconductor No. 3 plant. |
| April 2006 | Opened Nagoya Office. | |
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June | Newly established Aosaki plant. |
| September | Head office electric measurement (div.), precision
sheet-metal plant, machining plant Obtained ISO14001 certification. |
| April 2008 | Merged Yokkaichi Office to Nagoya Office. |
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September 2010 | The semiconductor plant has been qualified as the
manufacturing site (test house) entrusted from HIREC. Changed to the ISO14001 company-wide uniform system. (All offices in Oita prefecture) |
| September 2015 | Decreased the capital to ￥100 million. |
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March 2019 | Newly established the precision work plant. |