Kumagai Gumi

Engineering and Construction, Tunneling
TYO:1861
Japan

81-3-3235-8641

Kumagai Gumi Co., Ltd is a Japanese construction company involved in infrastructure and tunnel construction. (Company website)

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Kumagai machines were involved in the completed Koohrang and Cheshmeh Langan tunneling projects. (World Tunneling“Iranian TBMs continue steady march," December 23, 2009)

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Kumagai has a history in Iran. Kumagai incorporated an Iranian subsidiary in the 1977, and around that time was contracted to build a water supply tunnel in Isfahan, Iran. (KUMAGAI GUMI COMPANY, LTD. Company History)