Complex sentence: The port is currently owned and operated by Associated British Ports Holdings although some land is also shared with BAE Systems Submarine Solutions, currently consisting of four large docks, the Port of Barrow is one of North West England's most important ports.
Split into simpler sentences: The port is currently owned and operated by Associated British Ports Holdings, but some land is shared with BAE Systems Submarine Solutions. Currently consisting of four large docks, the Port of Barrow is one of North West England's most important ports.