| Oct. 1980 |
Kanto Setsubi Co., Ltd., was established as a machinery company specializing in services and equipment (air-conditioning and sanitation) for the construction of various facilities and public buildings. |
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| Jul. 1998 |
Established the instrumentation engineering division. |
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| Apr. 2001 |
Renamed to Kanto-L-Engineering Co., Ltd. (KLEC). |
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| Nov. 2002 |
Opened a Tokyo branch office in Kita-Senju, Tokyo. |
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| Jul. 2013 |
Established a 100% subsidiary company, "Vietnam KLEC Co., Ltd." in Hanoi, Vietnam. |
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| Apr. 2014 |
Opened a Chiba business office in Mobara, Chiba. |
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| May 2017 |
Moved a Tokyo branch office to Yushima, Tokyo. |
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| Apr. 2018 |
Moved a Chiba business office to Yushima, Tokyo and renamed to a Tokyo business office. |
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| Jun. 2021 |
Moved a head office to Sanuki, Ryugasaki. |
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| Jul. 2021 |
Opened a traning center in Nareshiba, Ryugasaki. |
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