Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,159 pages of information and 233,681 images on early companies, their products and the people who designed and built them.
1757 The Upper Bank Works were established at Llansamlet on the bank of the River Tawe by Chauncey Townsend in partnership with his son in law, John Smith. They smelted lead and zinc at these works.
Later the works were used to smelt copper ores.
1829 Owen Williams withdrew from the business with Grenfell; as a result the family firm of Pascoe Grenfell and Sons was formed to continue the Middle and Upper Bank Copper Works in the Lower Swansea Valley; at their height these works employed 800 men.
1928 The works closed but were later used as part of a munitions factory.