The large Cwm Coking Works complex opened in 1958. Coal was originally supplied from the adjacent Cwm Colliery (nprn 413936) until its closure in 1986 since when coal was brought to the site by road and rail from various sources. The works supplied coke to the four sites of the British Sugar Corporation and Britannia Zinc at Avonmouth, and produced by-products of gas (which it supplied to a local hospital), tar and ammonium sulphate. The works closed in 2003.
B.A.Malaws, chainbook no. 13, pp. 48-70.
The process of coal reception, storage and blending was described and illustrated in: Badcock, A. and Malaws, B. 'Recording people and processes at large industrial structures' in D. Barker and D. Cranstone (eds) 'The Archaeology of Industrialization' 269-289. (2004) Leeds, Maney.
B.A.Malaws, RCAHMW, 5 January 2004.