Harbor Star Shipping Services, Inc. is engaged in harbor assistance (docking and undocking), ship salvage, towage/lighterage, and specialized cargo handling operations and other marine services. The Company is engaged in ocean towage, commerce and navigation in the carriage of goods and passengers by water upon the oceans, seas, sounds, lakes, rivers, canals, bays, harbors and other waterways. The Company operates through harbor assistance and related services segment. The Company focuses its harbor assistance operations at ports with heavy vessel traffic, such as Manila International Container Terminal (MICT), and the ports of Bataan, Batangas, CDO and Davao. It offers the salvage services, such as vessels in distress, wreck removal and wayward vessels. It provides towing services, such as regular towing and emergency towing. Its marine and other ancillary services include oil and chemical spill response, ship repairs, diving services, ship and crew management, and firefighting.