Steel Dynamics Inc is incorporated in Indiana in 1993. The Company is a steel producer and metals recycler in the United States. The Company manufactures and sells steel products. It is also engaged in processing and sale of recycled ferrous and nonferrous metals, fabrication and sale of steel joist and decking products. Its segments are steel operations, metals recycling and ferrous resources operations, and steel fabrication operations. The Steel operations segment consist of five electric arc furnace mini-mills, producing steel from steel scrap, utilizing continuous casting, automated rolling mills, and various downstream finishing facilities. The steel operations sell directly to end users and service centers. These products are used in numerous industry sectors, including the automotive, agriculture, construction, commercial, transportation, energy, and industrial machinery markets. Sheet Products segment consists of Flat Roll Division sells a broad range of sheet steel products, such as hot rolled, cold rolled and coated steel products, including a large variety of specialty products such as light gauge hot rolled, galvanized, Galvalume(r) and painted products. The Techs operations comprised of three galvanizing lines, also sells specialized galvanized sheet steels used in non-automotive applications. Long Products segment consists of Structural and Rail Division sells structural steel beams and pilings and a variety of standard strength carbon and intermediate alloy hardness rail for the railroad industry. The Engineered Bar Products Division sells special bar quality and merchant bar quality rounds and round-cornered squares. Its Roanoke Bar Division sells merchant steel products, including angles, plain rounds, flats and channels, and billets. Steel of West Virginia sells merchant beams, channels and specialty structural steel sections. Metals Recycling and Ferrous Resources Operations segment includes its metals recycling operations, liquid pig iron production facility, and Minnesota iron operations. The metals recycling operations represent its metals sourcing and processing operations. The metals recycling operations sell ferrous metals to steel mills and foundries, and nonferrous metals, such as copper, brass, aluminum and stainless steel to ingot manufacturers, copper refineries and mills, smelters, and specialty mills. Ferrous resource operations consist of two iron making initiatives: Iron Dynamics (IDI), a liquid pig iron production facility, and Minnesota iron operations, consisting of an iron nugget production facility and operations to supply the nugget facility with its primary raw material, iron concentrate. IDI produces liquid pig iron, which is used as a scrap substitute raw material input exclusively at Flat Roll Division. The steel fabrication operations include six New Millennium Building Systems plants, which fabricate steel joists, trusses, girders, and decking used within the non-residential construction industry. The steel operations, metals recycling and ferrous resources operations, and steel fabrication operations are subject to substantial and evolving local, state and federal environmental, health and safety laws and regulations concerning, among other things, emissions to the air, discharges to surface and ground water and to sewer systems, and the generation, handling, storage, transportation, treatment and disposal of toxic and hazardous substances. The manufacturing operations are dependent upon both state and federal permits regulating discharges into the air or into the water in order to operate its facilities.