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.
Penta-Ocean logo
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.