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.
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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.
