Penta-Ocean Construction. 

Penta-Ocean Construction Co., Ltd. engages in the civil engineering and building construction activities in Japan, Southeast Asia, and internationally. The company operates through three segments: Domestic Civil Engineering, Domestic Building Construction, and Overseas. It provides its services in ports and harbors, airports, power stations, dams and river works, water supply and sewerages, bridges, roads and tunnels, railways, environmental, industrial and logistics, medical, health, welfare, recreational, offices, commercial and lodging, residential, and educational facilities. The company is involved in the development of domestic real estate properties; and shipbuilding, leasing, insurance, and environment businesses. Penta-Ocean Construction Co., Ltd. was founded in 1896 and is headquartered in Tokyo, Japan.