Established in Denmark in 1904, A.P. Moller-Maersk Group, more commonly known as Maersk, is one of the biggest corporate conglomerates in the world with business activities in different sectors. Seaborne transportation and shipping logistics are the main business of the group as the largest ship operator and supply vessel operator in the world. The shipping units maintain a fleet of more than 550 container ships. The company also does offshore drilling and transportationg for gas and oil, primarily in the North Sea.
Hanjin Heavy Industries & Construction was the first ship building company in Korea, established in 1937 at Youngdo, Pusan as "Chosun Heavy Industry Co., Ltd.", according to their website. The company builds everything from hospitals to apartment buildings through its construction segment and patrol boats to oil tankers through its shipbuilding segment.