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In 1902 C. H. Halcomb Jr., Sanderson's president and general manager, left the company and built the Halcomb Steel mill next to the Sanderson mill. Halcomb installed the first electric arc furnace (EAF) in the United States in 1906. In 1911 the company was acquired by Crucible, which doubled the size of its western branch warehouse (now in Chicago) in 1913.