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.

Casella Waste Systems, Inc., together with its subsidiaries, operates as a vertically integrated solid waste services company in the United States. It offers resource management services primarily in the areas of solid waste collection and disposal, transfer, recycling, and organics services to residential, commercial, municipal, institutional, and industrial customers. The company provides non-hazardous solid waste services, including collections, transfer stations, recycling, and disposal operations. In addition, it markets materials, including fibers, corrugated cardboard, newsprint, plastics, glass, ferrous, and aluminum metals. Casella Waste Systems, Inc. was founded in 1975 and is headquartered in Rutland, Vermont.

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.

Enviri Corporation provides environmental solutions for industrial and specialty waste streams in the United States and internationally. The company operates through two segments: Harsco Environmental and Clean Earth. The Harsco Environmental segment offers on-site services under long-term contracts for material logistics, product quality improvement, and resource recovery for iron, steel, and metals manufacturing; manufactures and sells industrial abrasives, roofing granules, aluminum dross, and scrap processing systems; and meltshop and furnace services, such as under-vessel cleaning, removal of ladle slag, and general melt shop debris. This segment also produces and sells value-added downstream products from industrial waste-stream, including road surfacing and materials, such as slag-based asphalt product under the SteelPhal brand; abrasives and roofing materials under the BLACK BEAUTY and SURE/CUT brand names; Metallurgical Additives; agriculture and turf products comprising soil conditioners and fertilizers under the CrossOver and AgrowSil brands; and cement additives. The Clean Earth segment provides specialty waste processing, treatment, recycling, and beneficial reuse solutions for waste needs, such as hazardous, non-hazardous, and contaminated soils and dredged materials to industrial, retail, healthcare, and construction industries. The company was formerly known as Harsco Corporation and changed its name to Enviri Corporation in June 2023. The company was founded in 1853 and is headquartered in Philadelphia, Pennsylvania.

Aqua Metals, Inc. engages in reinventing metals recycling activities with its patented AquaRefining technology. The company's technology produces metals and alloys that can be returned into the battery manufacturing supply chain markets, as well as sells metals for use in various advanced manufacturing industries. Its AquaRefining, a low-emissions and recycling technology that replaces polluting furnaces and hazardous chemicals with electricity-powered electroplating to recover valuable metals and materials from spent batteries. Aqua Metals, Inc. was incorporated in 2014 and is headquartered in Reno, Nevada.

Envela Corporation, together with its subsidiaries, operates in the re-commerce sector in the United States. The company operates through two segments, Commercial-Services and Direct-To-Consumer. It provides end-of-life asset recycling; data destruction and IT asset management; and products, services, and solutions to industrial and commercial companies, as well as operates as a re-commerce retailers of luxury hard assets. The company buys to resell or recycle luxury hard assets, including jewelry, diamonds, gemstones, fine watches, rare coins and related collectibles, precious-metal bullion products, gold, silver and other precious metals; buys and sells various forms of gold, silver, platinum, and palladium products, including United States and other government coins, and private mint medallions, as well as numismatic items, such as rare coins, currency, medals, tokens, and other collectibles; and provides jewelry and watches repair services, as well as custom jewelry services. In addition, it offers end-of-life electronics recycling services; disposal transportation and product tracking services; IT equipment disposition services, including compliance and data sanitization services; services to companies in the areas of upgrade capabilities and dispose of equipment; and asset- disposition solutions to government agencies, middle-market firms, major corporations, and other organizations. The company operates multiple brick-and-mortar and online marketplaces; and offers custom re-commerce solutions to meet the needs of various clients. It operates through DGSE.com, echoenvironmental.com, ITADUSA.com, teladvance.com and AvailRecovery.com. websites. The company was formerly known as DGSE Companies, Inc. and changed its name to Envela Corporation in December 2019. Envela Corporation was incorporated in 1965 and is headquartered in Irving, Texas.