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of Crown Chemical Works, Three Mill Lane, Bromley-by-Bow, London, E3. Telephone: Advance 1234. Cables: "Kemball, London" (1947)
1870 Company established.
1901 The company was registered on 28 October, to acquire the business of chemical manufacturers of the firm of the same name. 
1944 Kemball, Bishop and Co, experienced in making products using mould fermentation, together with the Therapeutic Research Corporation of Great Britain and ICI (Pharmaceuticals), were working on the development and production of penicillin.
1947 British Industries Fair Advert as Manufacturers of: Citric Acid; Acid Sodium Citrate; Tartaric Acid; Cream of Tartar; Sodium Potassium Tartrate; Calcium Gluconate; Penicillin Calcium Salt; Lithium Carbonate; Lithium Chloride; Lithium Hydroxide; Potassium Sulphate Commercial; Itaconic Acid. (Chemicals etc. Section - Olympia, Ground Floor, Stand No. A.1169) 
1958 Acquired by Pfizer.