Steel Dynamics, Inc., together with its subsidiaries, manufactures and sells steel products, processes and sells recycled ferrous and nonferrous metals, and fabricates and sells steel joist and decking products in the United States and internationally. The company operates in three segments: Steel Operations, Metals Recycling and Ferrous Resources Operations, and Steel Fabrication Operations. The Steel Operations segment provides a range of sheet steel products, such as hot roll, cold roll, and coated steel products; structural steel beams and pilings to construction market; various rail products for the railroad industry; rounds, round-cornered squares, and round engineered bars; angles, plain rounds, flats, channels, and billets; and merchant beams, channels, and specialty structural steel sections. This segment offers its products for automotive, construction, commercial, transportation, agriculture, industrial machinery, pipe and tube, and energy markets. The Metals Recycling and Ferrous Resources Operations segment is involved in the purchase, process, and resale of ferrous and nonferrous scrap metals into reusable forms and grades. Its ferrous products include heavy melting steel, busheling, bundled scrap, shredded scrap, steel turnings, and cast iron products; and nonferrous products comprise aluminum, brass, copper, stainless steel, and other nonferrous metals. This segment also produces pig and hot briquetted iron; and iron nugget products that are used in electric arc furnace steel mills. The Steel Fabrication Operations segment produces steel building components comprising steel joists, girders, trusses, and steel decking primarily for the non-residential construction industry. The company also serves steel service centers, steel fabricators, various manufacturers, cold finishers, forgers, intermediate processors, original equipment manufacturers, and distributors. Steel Dynamics, Inc. was founded in 1993 and is headquartered in Fort Wayne, Indiana.