The tin plate works were founded in 1806 by George Conway's. They were known as both Pontrhydyryn Tin Plate Works and the Edlogan Tinplate Works. They were alongside the Avon Llwyd River. A gasometer was marked on the 1881 OS map indicating a private gasworks which would have lit the works. The Pontnewydd Works declined with the death of Charles Conway in 1884.