Scope of services

As a professional OSV services provider, COSL Shipping can provide a wide range of vessel services, including anchor handling, towing services for drilling rigs/barges, transportation, stand-by, ice breaking, fire-fighting, rescue, oil spill response, lifting support and workover support, to satisfy the diverse requirements from the players in the offshore oil and gas industry.

Anchor handling

Provide anchor handling services for jack-up rigs, semi-submersible rigs and offshore engineering units in different water depth and seabed condition.


The modern, diversified AHTS fleet of COSL Shipping is capable of all types of towing and positioning activities. Our vessels come in different bollard pull capabilities, which range from 80 tons to 340 tons, to meet various requirements of our clients. Our crews manning these ships are specially trained to perform the precision, safe and high efficiency operations at all times.

Cargo (passenger) transportation

Platform supply vessels designed to carry a wide variety of cargoes, our PSVs can transport substantial amounts of fuel, fresh water, drilling fluids, base oil, liquid mud or cement in below-deck tanks. With extensive deck area, our fleet of PSVs makes it possible to deliver all types of equipment such as casing, drill pipe, tubing. Safety is always our top priority. Our well trained and skilled crews can ensure the safety operation on site. Cargos can be loaded and unloaded in complex weather conditions and can be transported to the platform and oil facility in time.

Besides, our vessels are equipped with a certain number of passenger cabins and enough life-saving equipments; Our PSVs can provide passenger transportation service for clients.


The vessels are equipped with lifeboats, life-saving equipments, firefighting system, anti-pollution system, etc. Crews are trained regularly according to regulations in Safety Management System of our company and to improve the skills of operation, such as lifesaving, firefighting, outboard operation, oil lifting and anti-pollution and so on.

Oil lifting assisting

The vessels have provided support service for assisting lifting of FPSO for many years in Bohai and South China Sea area. Captains and crews have rich experience and high skills in such high-risk operation.