I. C. Johnson and Co


of Greenhithe and Gateshead, Cement plant.
Mr I. C. Johnson set up cement works at Cliffe, Greenhithe and on the Tyne[1]
1875 Isaac Charles Johnson and Co, cement makers, of 25 Great Tower Street, London EC[2]
1880 Mr Johnson's patented chamber kiln was in use at his works at Greenhithe and Gateshead.
1887 Contract for cement for St. Helier Harbour
1900 Became part of Associated Portland Cement Manufacturers
1912 The Gateshead works became part of British Portland Cement Manufacturers