Barry, Vale of Glamorgan dock basin was opened in 1889 to be followed by two other docks and extensive port installations. The Barry Railway brought coal down from the South Wales Valleys to the new docks whose trade grew from one million tons in the first year, to over nine million tons by 1903. The port was crowded with ships and had flourishing ship repair yards, cold stores, flour mills and an ice factory. By 1913, Barry was the largest coal exporting port in the world. Behind the docks rose the terraced houses of Barry which, with Cadoxton, soon formed a sizeable town. The
Port Penrhyn plans for expansion. Port Penrhyn Port Penrhyn () is a harbour located just east of Bangor in north Wales at the confluence of the River Cegin with the Menai Strait. It was formerly of great importance as the main port for the export of slate from the Penrhyn Quarry, the largest slate quarry in the world at the end of the nineteenth century. It was built, and later expanded, by the Pennant (later Douglas-Pennant) family of the nearby Penrhyn Castle. "Penrhyn" is the Welsh word for 'promontory'. The port is used by coastal vessels up to about and by fishing