Penta Ocean construction

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About Company

Penta-Ocean Construction Co., Ltd. (五洋建設株式会社, Goyō Kensetsu Kabushiki-gaisha) is a major Japanese construction firm. It specializes in marine works and land reclamation. It originated from Mizuno Gumi (水野組) in in Hiroshima Prefecture, and later renamed to the current name and capitalized in .