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The corporation was formed in 1920 in the consolidation of several chemical manufacturers; the Barrett Company (founded 1903), supplying coal-tar chemicals and roofing; General Chemical Company (founded 1899), specializing in industrial acids; National Aniline & Chemical Company (founded 1917), producing dyes; Semet-Solvay Company (founded 1894), manufacturing coke and its by-products; and...
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