Nucor Corp. engages in the manufacture of steel and steel products. It operates through the following segments: Steel Mills, Steel Products, and Raw Materials. The Steel Mills segment produces and distributes sheet, plate, structural, and bar steel. The Steel Products segment includes steel joists and joist girders, steel deck, fabricated concrete reinforcing steel, cold finished steel, steel fasteners, metal building systems, light gauge steel framing, steel grating, expanded metal, wire, and wire mesh. The Raw Materials segment comprises of direct reduced iron, and ferrous and nonferrous metals. The company was founded by Ransom E. Olds and Samuel Siegel in 1905 and is headquartered in Charlotte, NC.