Nautilus Minerals Inc. is a Canada-based company engaged in the exploration and development of the ocean floor for copper and gold rich seafloor massive sulfide deposits and for manganese, nickel, copper and cobalt nodule deposits. The Company has one segment being mineral property exploration in Australasia. The exploration activity involves the search for deep-water copper and gold rich seafloor massive sulfides in the western Pacific Ocean and nodule deposits in the eastern Pacific Ocean. Its principal project is the Solwara 1 Project in Papua New Guinea (PNG) in the Bismarck Sea. The proposed principal operations of the Company are the extraction of copper, zinc, gold and silver deposits. Its subsidiaries include Nautilus Minerals Niugini Limited (Papua New Guinea), Nautilus Minerals Pacific Proprietary Limited (Australia), Nautilus Minerals (Tonga) #1 Limited, Tonga Offshore Mining Limited (Tonga), Nautilus Minerals Singapore Limited and Koloa Moana Resources Inc (Canada).