Neath was a market town that expanded with the arrival of the Industrial Revolution in the 18th century with new manufacturing industries of iron, steel and tinplate. The Mackworth family, who owned the Gnoll Estate were prominent in the town's industrial development. Coal was mined extensively in the surrounding valleys and the construction of canals and railways made Neath a major transportation centre and the Evans & Bevan families were major players in the local coal mining community as well as owning the Vale of Neath Brewery. Silica was mined in the area of Pontneddfechan, after Quaker entrepreneur William Weston Young invented the blast furnace silica firebrick, later moving brick production from the works at to the Green in Neath. The town continued as a market trading centre with a municipal cattle market run by W.B.Trick. Industrial development continued throughout the 20th century with the construction by BP of a new petroleum refinery at .