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Noranda Metal Industries was the successor to Noranda Copper and Brass and Noranda Copper Mills. It produced copper and copper-based alloy products in the form of sheet, strip, rod and tube in three plants across Canada. Its principle markets were the automobile industry and the house construction industry. The company consumed significant quantities of copper and lesser amounts of other metals such as zinc. In 1974, it reported that in excess of 54,000 tons of metal were processed.
In addition to its operations in Canada, Noranda Metal Industries owned two plants in the United States, one of which closed circa 1975, and another which had an interest in a mill in Colombia. In an effort to reduce its dependence on the highly cyclical copper and brass business, Noranda Metal Industries constructed a $23.5 million plant at Arnprior, Ontario to produce zirconium alloy sheathing and pressure tubes for use in nuclear reactors. The plant was built in anticipation of a rapidly-growing requirement for those products as Canadian utilities, particularly Ontario Hydro, would be accelerating their nuclear power construction programmes. Zirconium tubes were sold directly to utilities for use in conducting steam from the reactors, and to fuel cell manufacturers such as General Electric and Westinghouse Electric.
Source: Source: Royal Commission on Corporate Concentration, Noranda Mines Limited: A Corporate Background Report. 1976. pp. 56-57.