1972 | May | Founded in Oita City |
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1974 | Feb. | Sansin Sangyo registered as a Construction Corporation with 5 million yen of capital. |
Sansin Sangyo started leasing scaffolding and construction equipment |
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Sansin Sangyo opened offices in Oita City and Tsurusaki City to lease scaffolding and construction equipment. |
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1976 | May | Fukuoka office was opened to improved commutation between Tsurusaki office and Oita City head office. |
1978 | Oct. | Maintenance factory established and operated from Tsurusaki Office. |
Dec. | Sansin Sangyo’s Capital was increased to 15 million yen. |
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1979 | May | Sansin Sangyo relocated the head office from Tsurusaki to Oita City. |
1980 | Feb. | Sansin Sangyo opened a new Scaffolding Equipment Center in Nakatsu. |
1981 | Sep. | Sansin Sangyo built a new Main Office in Oita |
1982 | Dec. | Sansin Sangyo acquired construction permission from the Oita governor to begin construction. Permit Number 5646. |
1984 | Jan. | Sansin Sangyo opened Taketa Scaffolding and Rental Center. |
1986 | May | Sansin Sangyo opened new offices in Mukaibaruoki Oita and renamed the Tsurusaki office to Oita Chuo Scaffolding Rental Center. |
1987 | Feb. | Sansin Sangyo opened the Saiki Scaffolding Rental Center. |
Oct. | Sansin Sangyo opened the Kokura Scaffolding Rental Center in Kitakyushu, Fukuoka. |
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1988 | Apr. | Sansin Sangyo’s capital was increased to 30 million yen and part of the headquarters |
May | responsibilities were transferred to the Fukuoka Office in Kusuya-gun. | |
1990 | Feb. | Sansin Sangyo opened Minami Scaffolding Rental Center in Kamihetsugi, Oita |
Jun. | Sansin Sangyo opened Chikuho Equipment Maintenance Center in Tagawa, Fukuoka |
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1997 | Apr. | Sansin Sangyo’s capital was increased to 50 million yen. |
1998 | Mar. | Sansin Sangyo opened a Sale Office and Scaffolding Rental Center in Usuki, Oita. |
1999 | Feb. | Sansin Sangyo opened the Hiji Office and Scaffolding Rental Center in Hayami Hiji, Oita |
Sansin Sangyo opened Shimonoseki Office and Scaffolding Rental Center in Shimonoseki, Yamaguchi. | ||
2004 | Apr. | Sansin Sangyo began selling and installing Solar Systems. |
2005 | Sep. | Sansin Sangyo opened Sales Office and Scaffolding Rental Center in Hita, Oita. |
2006 | Oct. | Sansin Sangyo opened a Softbank Store. |
2007 | May | Sansin Sangyo renamed Oita Minami as Oita Minami Office and Scaffolding Rental Center. |
Jul. | Sansin Sangyo opened a Logistics Equipment Rental Center in Yayama, Oita. | |
Oct. | Additionally, The Shunan Office and Scaffolding Rentan Center was opened in Kudamatsu, Yamaguchi. |
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2008 | Sep. | Sansin Sangyo moved their Hiji Scaffolding Rental Center to Hinode-Cho Oaza Okami 9656-10. |
Sansin Sangyo opened the Yamaguchi Office and Sacffolding Rental Center in Ube, Yamaguchi, |
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2010 | Feb. | Sansin Sangyo opened Kyuken Lease Co., Ltd. Kumamoto Office and Scaffolding Rental Center in Kumamoto, Kumamoto. |
2011 | Feb. | Sansin Sangyo opened Fukuoka Sales Office Nihou Wing Co., Ltd. in Kasuya, Fukuoka. |
2012 | Jun. | Sansin Sangyo opened Hiji Office Nihou Wing Co., Ltd. in Hayami, Oita. |
Sep. | Sansin Sangyo opened Kyuken Lease Co., Ltd. Shunan Office and Scaffolding Rental Center in Kudamatsu, Yamaguchi. |
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2013 | May | Sansin Sangyo received certification for all 14 Scaffolding Rental Centers. |
Aug. | Sansin Sangyo opened Kyuken Lease Co., Ltd. Fukuoka Sales Office and Scaffolding Rental Center in Kasuya, Fukuoka. |
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Sep. | Sansin Sangyo opened Kyuken Lease Co., Ltd. Nagasaki Office and Scaffolding Rental Center in Isahaya, Nagasaki. |
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2014 | Sep. | Sansin Sangyo opened Iwakuni Office and Scaffolding Rental Center in Iwakuni, Yamaguchi. |
2015 | May | Sansin Sangyo opened Kyuken Lease Co., Ltd. Hiroshima Branch Office and Rental Center |
2016 | Feb | Sansin Sangyo opened Nippon Steel & Sumitomo Metal Premises Office and Rental Center in Oita Prefecture |
2016 | Jul | Sansin Sangyo opened Yahata Office and Rental Center |
2017 | Apr. | Established a Joint Venture in Philippines |
2018 | Feb. | Sansin Sangyo Taketa Office and Rental Center is relocated to Takeda-shi Hidagawa 2239 - 5 |