Olympic Steel, Inc. processes, distributes, and storage metal products in the United States and internationally. It operates in three segments: Carbon Flat Products; Specialty Metals Flat Products; and Tubular and Pipe Products.

Steel Dynamics, Inc., together with its subsidiaries, operates as a steel producer and metal recycler in the United States. It operates through three segments: Steel Operations, Metals Recycling Operations, and Steel Fabrication Operations.

Commercial Metals Company manufactures, recycles, and fabricates steel and metal products, and related materials and services in the United States, Poland, China, and internationally.

Nucor Corporation manufactures and sells steel and steel products. The company's Steel Mills segment produces hot-rolled, cold-rolled, and galvanized sheet steel products; plate steel products; wide-flange beams, beam blanks, and H-piling and sheet piling products; and bar steel products, such as blooms, billets, concrete reinforcing and merchant bars, and special bar quality products.

Gerdau S.A. provides steel products and services. The company operates through Brazil Business, North America Business, South America Business, and Special Steel Business segments.

Ternium S.A. manufactures, processes, and sells various steel products in Mexico, Argentina, Paraguay, Chile, Bolivia, Uruguay, Brazil, the United States, Colombia, Guatemala, Costa Rica, Honduras, El Salvador, and Nicaragua.

POSCO Holdings Inc., together with its subsidiaries, manufactures and sells steel rolled products and plates in South Korea and internationally. It operates through four segments: Steel, Construction, Trading, and Others.