Changes

Steatite & Porcelain Products was established in 1907 and in 1910 incorporated as Ernst Hildebrant Ltd. It changed names in 1917 to the Clay Ring Co. Ltd. and in 1928 to Steatite & Porcelain Products Ltd. It was acquired in 1941 by ICI Metals Division and in 1964 by Morgan Advanced Ceramics Ltd (now Morgan Advanced Materials plc).<ref>[https://www.gracesguide.co.uk/Steatite_and_Porcelain_Products Grace's guide to British Insustry Industry webpage] (retrieved 7 October 2018)</ref>