Grab dredgers are work vessels used for dredging to keep the water depth of the ship's route and the berth, breakwaters, and floor excavation for the stable foundation of the quay.

 Floating crane is, as the name suggests, a work boat equipped with a crane.

 Currently, there are three (Seiryu, Yushu, and Shinyo) grab dredgers for the construction of Ieshima, and one of them, Seiryu, is a hybrid vessel that has cleared the environmental standard of IMO secondary regulation, and various requests It is a work boat that has met our needs.

 In addition, we have experienced dredging work overseas for about a year at Lat Pheng Port in Vietnam in 2017.