Steel Dynamics, Inc., together with its subsidiaries, operates as a steel producer and metal recycler in the United States. The Steel Operations segment offers hot rolled, cold rolled, and coated steel products; parallel flange beams and channel sections, flat bars, large unequal leg angles, and reinforcing steel bars, as well as standard strength carbon, intermediate alloy hardness, and premium grade rail products; engineered special-bar-quality products, merchant-bar-quality products, and other engineered round steel bars; channels, angles, flats, merchant rounds, and reinforcing steel bars; and specialty shapes and light structural steel products. This segment also engages in turning, polishing, straightening, chamfering, precision saw-cutting, and heat treating of bar products. Its products are used in construction, automotive, manufacturing, transportation, heavy and agriculture equipment, and pipe and tube markets. The Metals Recycling Operations segment is involved in the ferrous and nonferrous scrap metal processing, transportation, marketing, brokerage, and scrap management services. 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. The Steel Fabrication Operations segment produces steel non-residential building components, such as steel joists, girders, trusses, and steel deck products for non-residential steel fabricators, metal building companies, general construction contractors, developers, owners, brokers, and governmental entities, as well as e-commerce warehouses, data centers, metal buildings, and education and commercial building projects. The Aluminum Operations segment offers recycled aluminum flat rolled products. The company also exports its products. Steel Dynamics, Inc. was founded in 1993 and is headquartered in Fort Wayne, Indiana.

Reliance, Inc. operates as a diversified metal solutions provider and the metals service center company in the United States, Canada, and internationally. The company distributes a line of approximately 100,000 metal products, including alloy, aluminum, brass, copper, carbon steel, stainless steel, titanium, and specialty steel products; and provides metals processing services to general manufacturing, non-residential construction, transportation, aerospace, energy, electronics and semiconductor fabrication, and heavy industries. It sells its products directly to original equipment manufacturers, which primarily include small machine shops and fabricators. The company was formerly known as Reliance Steel & Aluminum Co. and changed its name to Reliance, Inc. in February 2024. Reliance, Inc. was founded in 1939 and is based in Scottsdale, Arizona.

Commercial Metals Company manufactures, recycles, and fabricates steel and metal products, and related materials and services in the United States, Poland, China, and internationally. It operates through three segments: North America Steel Group; Europe Steel Group; and Emerging Businesses Group. The company processes and sells ferrous and nonferrous scrap metals to steel mills and foundries, aluminum sheet and ingot manufacturers, brass and bronze ingot makers, copper refineries and mills, secondary lead smelters, specialty steel mills, high temperature alloy manufacturers, and other consumers. It also manufactures and sells finished long steel products, including reinforcing bar, merchant bar, light structural, and other special sections, as well as semi-finished billets for rerolling and forging applications. In addition, the company provides fabricated rebar used to reinforce concrete primarily in the construction of commercial and non-commercial buildings, hospitals, convention centers, industrial plants, power plants, highways, bridges, arenas, stadiums, and dams; sells and rents construction-related products and equipment to concrete installers and other businesses; and manufactures and sells strength bars for the truck trailer industry, special bar steels for the energy market, and armor plates for military vehicles. Further, it manufactures rebars, merchant bars, and wire rods; and sells fabricated rebars, wire meshes, welded steel mesh, wire rod, cold rolled rebar, cold rolled wire rod, assembled rebar cages and other fabricated rebar by-products to fabricators, manufacturers, distributors, and construction companies. The company was founded in 1915 and is headquartered in Irving, Texas.

Radius Recycling, Inc. recycles ferrous and nonferrous metal, and manufactures finished steel products worldwide. The company acquires, processes, and recycles salvaged vehicles, rail cars, home appliances, industrial machinery, manufacturing scrap, and construction and demolition scrap. It offers recycled ferrous metal, a feedstock used in the production of finished steel products; and nonferrous products, including mixed metal joint products recovered from the shredding process, such as zorba, zurik, aluminum, copper, stainless steel, nickel, brass, titanium, lead, and high temperature alloys. The company also procures salvaged vehicles and sells serviceable used auto parts from these vehicles. In addition, it produces various finished steel products using ferrous recycled metal and other raw materials, as well as semi-finished goods, which include billets; and finished goods consisting of rebar, coiled rebar, wire rods, merchant bars, and other specialty products. Further, the company sells catalytic converters to specialty processors that extract the nonferrous precious metals, including platinum, palladium, and rhodium; and ferrous and nonferrous recycled metal products to steel mills, foundries, refineries, smelters, wholesalers, and recycled metal processors, as well as finished steel customers, such as steel service centers, construction industry subcontractors, steel fabricators, wire drawers, and major farm and wood products suppliers. It also provides recycling and related services, including scrap brokerage, certified destruction, automotive parts recycling, railcar dismantling, and reverse logistics under 3PR brand name. The company was formerly known as Schnitzer Steel Industries, Inc. and changed its name to Radius Recycling, Inc. in January 2024. Radius Recycling, Inc. was founded in 1906 and is headquartered in Portland, Oregon.

Haynes International, Inc. develops, manufactures, markets, and distributes nickel and cobalt-based alloys in sheet, coil, and plate forms in the United States, Europe, China, and internationally. The company offers high-temperature resistant alloys used by manufacturers of equipment, including jet engines for the aerospace market, gas turbine engines for power generation, and industrial heating equipment. It also provides corrosion-resistant alloys used in various applications, including chemical processing, power plant emissions control, and hazardous waste treatment. In addition, its products also have applications in flue-gas desulfurization, oil and gas, waste incineration, industrial heat treating, automotive, thermocouples, sensors and instrumentation, biopharmaceuticals, solar, and nuclear fuel. Further, the company produces its products in various forms, such as seamless and welded tubulars, slab, bar, billet, and wire. Additionally, it sells its products primarily through direct sales organizations, and network of independent distributors and sales agents. Haynes International, Inc. was founded in 1912 and is headquartered in Kokomo, Indiana. As of November 21, 2024, Haynes International, Inc. operates as a subsidiary of North American Stainless, Inc.

Steel Partners Holdings L.P., together with its subsidiaries, engages in industrial products, energy, banking, defense, supply chain management, logistics, and youth sports businesses worldwide. It operates through Diversified Industrial, Energy, Financial Services, and Supply Chain segments. The company fabricates precious metals and alloys into brazing alloys; manufactures and sells seamless stainless steel tubing coils; fasteners, adhesives, and fastening systems for the commercial low slope roofing industry, as well as specialty fasteners for the building products industry; and woven substrates of fiberglass, quartz, carbon, and aramid materials for specialty applications. It also designs, manufactures, and markets power electronics and protection, motion control, power quality electromagnetic equipment, custom ball-screws, and gears and gearboxes used in medical, commercial and military aerospace, computer, datacom, industrial, specialty LED lighting, test and measurement, and telecom applications. In addition, the company provides meat-room blade products, repair services, and distributed products for the meat and deli departments of supermarkets, restaurants, and meat and fish processing plants, as well as for electrical saws and cutting equipment distributors; cutting blades for bakeries; and wood cutting blade products for the pallet manufacturing, pallet recycler, and portable saw mill industries. Further, it manufactures and distributes coated, laminated and metallized films for imaging, aerospace, insulation and solar photo-voltaic markets; originates and funds consumer and small business loans; issues credit cards; takes deposits; participates in syndicated commercial and industrial, and asset based credit facilities and securitizations; and offers drilling and production services to the oil and gas industry. Steel Partners Holdings GP Inc. serves as the general partner of the company. The company was founded in 1990 and is based in New York, New York.

Universal Stainless & Alloy Products, Inc., together with its subsidiaries, manufactures and markets semi-finished and finished specialty steel products in the United States and internationally. Its products include stainless steel, nickel alloys, tool steel, and various other alloyed steels. The company offers semi-finished and finished long products in the form of ingots, billets, and bars; flat rolled products, such as slabs and plates; and customized shapes primarily for original equipment manufacturers, which are cold rolled from purchased coiled strip, flat bar, or extruded bar. It also offers conversion services on materials supplied by its customers. The company's products are used in aerospace, power generation, oil and gas, heavy equipment, and general industrial markets. It sells its products to service centers, forgers, rerollers, and original equipment manufacturers. The company was incorporated in 1994 and is headquartered in Bridgeville, Pennsylvania.

Olympic Steel, Inc. processes, distributes, and stores metal products primarily in the United States, Canada, and Mexico. It operates in three segments: Carbon Flat Products; Specialty Metals Flat Products; and Tubular and Pipe Products. The company offers stainless steel and aluminum coil and sheet products, angles, rounds, and flat bars; alloy, heat treated, and abrasion resistant coils, sheets and plates; coated metals, including galvanized, galvannealed, electro galvanized, advanced high strength steels, aluminized, and automotive grades of steel; commercial quality, advanced high strength steel, drawing steel, and automotive grades cold rolled steel coil and sheet products; hot rolled carbon comprising hot rolled coil, pickled and oiled sheet and plate steel products, automotive grades, advanced high strength steels, and high strength low alloys; tube, pipe, and bar products, including round, square, and rectangular mechanical and structural tubing; hydraulic and stainless tubing; boiler tubing; carbon, stainless, and aluminum pipes; valves and fittings; and tin mill products, such as electrolytic tinplate, electrolytic chromium coated steel, and black plates. The company also provides cutting-to-length, slitting, shearing, blanking, tempering, stretcher-leveling, plate and laser processing, forming and machining, tube processing, finishing, and fabrication services, as well as value-added services, such as saw cutting, laser cutting, beveling, threading, and grooving services. It serves metal consuming industries, such as manufacturers and fabricators of transportation and material handling lift equipment, construction, mining and farm equipment, agriculture equipment, storage tanks, environmental and energy generation equipment, automobiles, food service, and electrical equipment, as well as general and plate fabricators, and metals service centers through direct sales force. Olympic Steel, Inc. was founded in 1954 and is based in Highland Hills, Ohio.