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c.1859 Company founded as the Society of Chemical Industry in BAsel
1961 Formed UK subsidiary: Ciba, United Kingdom Ltd, which acquired the 3 existing subsidiaries (manufacturing pharmaceuticals, selling dyestuffs, and producing synthetic resins and adhesives), as well as the controlling interest in Clayton Aniline Co
1969 CIBA became sole owner of Ilford when it acquired ICI's shares and planned to increase its photographic business.
By 1970, CIBA UK included:
1970 Ciba merged with another Swiss chemical company, J. R. Geigy (founded in Basel in 1758), forming Ciba-Geigy Ltd
1989 Sold Ilford to International Paper Co
1992 Pharmaceuticals and agri-business sales accounted for 60 percent of the total; sales of industrial chemicals dropped slightly
1996 Ciba-Geigy merged with another Swiss chemical company, Sandoz, to form Novartis. The speciality additives business, which made additives for the plastics, coating and paper industries, was spun-out as Ciba
2009 BASF acquired Ciba Holding AG on April 9, 2009. Almost all of the Ciba businesses were integrated into the Performance Products segment of BASF.