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Smelter at Melincryddan, near Neath
1695 Established by Sir Humphrey Mackworth and his family, together with capital from other sources through the Company of Mine Adventurers.
The Coster's family business established a smelter at an abandoned works at Melincryddan, near Neath, South Wales, during the planning of a large new site at White Rock, Swansea.