Mersey Docks and Harbour Company

[1] Peel Ports, the MDHC's parent company, owns other maritime facilities in the area, including the Cammell Laird shipyard, Tranmere Oil Terminal and the Manchester Ship Canal.

[6] In order to provide stone for the construction of the expanded dock system, from 1830 the trustees (and later the MDHB) operated large quarries at Creetown, Scotland.

In 1972, the MDHB was reconstituted as a company to allow it to raise money for new building initiatives and projects, including the new container dock at Seaforth.

The MDHC was accused of "macho management" by the Financial Times regarding its treatment of some of its staff in the 1990s, which resulted in the Liverpool dockers' strike.

The dock was built as part of an expansion of the Cammell Laird shipyard at the turn of the 20th century by enclosing what was once Tranmere Pool.