Nucor Corp. engages in the manufacturing of steel and steel products. It operates through the following segments: Steel Mills, Steel Products, and Raw Materials. The Steel Mills segment comprises of carbon and alloy steel in sheet, bars; structural and plate; steel trading businesses; rebar distribution businesses; and Nucor's equity method investments. The Steel Products segment includes steel joists and joist girders, steel deck, fabricated concrete reinforcing steel, cold finished steel, steel fasteners, metal building systems, steel grating, tubular products businesses, piling products business, and wire and wire mesh. The Raw Materials segment consists of direct reduced iron, and ferrous and nonferrous metals. The company was founded by Ransom E. Olds in 1905 and is headquartered in Charlotte, NC.