KT Submarine Co., Ltd. is a Korea-based company engaged in the construction and maintenance submarine cables. The Company's services include the installation, construction and maintenance of submarine fiber optic cables and submarine power cables; the installation of derrick assemblies in vessel remodeling, vessel cranes on board and drilling rig packages; the installation of submarine pipelines and deep sea pipelines; the installation and construction of submarine cables for offshore wind/wave power development, and installation and construction works for the monitoring and controlling services and salvage works.