Medway Ports is a subsidiary of the Mersey Docks and Harbour Company, which also owns the UK ports of Liverpool and Heysham, as well as having substantial overseas port interests. The Port of Sheerness has a massive advantage with its closeness to the main shipping lanes. The River Medway is ideally placed to serve the UK's busy South East. Its strategic position, together with enviable motorway and rail links, make it one of the country's busiest and most important arteries for trade.