ArcelorMittal S.A., together with its subsidiaries, operates as integrated steel and mining companies in the United States, Europe, and internationally. It offers semi-finished flat products, including slabs; finished flat products comprising plates, hot- and cold-rolled coils and sheets, hot-dipped and electro-galvanized coils and sheets, tinplate, and color coated coils and sheets; semi-finished long products, such as blooms and billets; finished long products consisting of bars, wire-rods, structural sections, rails, sheet piles, and wire-products; and seamless and welded pipes and tubes. The company also provides mining products, such as iron ore lumps, fines, concentrates, pellets, and sinter feeds; and coking coal. It sells its products to various customers in the automotive, appliance, engineering, construction, energy, and machinery industries through a centralized marketing organization, as well as distributors. The company has iron ore mining activities in Brazil, Bosnia, Canada, Liberia, Mexico, South Africa, and Ukraine. ArcelorMittal S.A. was founded in 1976 and is headquartered in Luxembourg City, Luxembourg.

Alcoa Corporation, together with its subsidiaries, produces and sells bauxite, alumina, and aluminum products in the United States, Spain, Australia, Iceland, Norway, Brazil, Canada, and internationally. The company operates through two segments, Alumina and Aluminum. It engages in bauxite mining operations; and processes bauxite into alumina and sells it to customers who process it into industrial chemical products, as well as aluminum smelting and casting businesses. The company offers primary aluminum in the form of alloy ingot or value-add ingot to customers that produce products for the transportation, building and construction, packaging, wire, and other industrial markets; and flat-rolled aluminum in the form of sheet, which is sold primarily to customers that produce beverage and food cans. In addition, it owns hydro power plants that generates and sells electricity in the wholesale market to traders, large industrial consumers, distribution companies, and other generation companies. The company was formerly known as Alcoa Upstream Corporation and changed its name to Alcoa Corporation in October 2016. The company was founded in 1886 and is headquartered in Pittsburgh, Pennsylvania.

Sociedad Química y Minera de Chile S.A. operates as a mining company worldwide. The company offers specialty plant nutrients, including sodium potassium nitrate, specialty blends, and other specialty fertilizers under Ultrasol, Qrop, Speedfol, Allganic, Ultrasoline, ProP, and Prohydric brands. It also provides iodine and its derivatives for use in medical, agricultural, industrial, and human and animal nutrition products comprising x-ray contrast media, biocides, antiseptics and disinfectants, pharmaceutical intermediates, polarizing films for LCD and LED screens, chemicals, organic compounds, and pigments, as well as added to edible salt to prevent iodine deficiency disorders. In addition, the company produces lithium carbonate and lithium hydroxide which are used in the production of cathode material for secondary batteries; lithium chloride; and basic lithium chemicals and lithium derivatives used in lubricating greases for heat-resistant glass, chips for the ceramic and glazing industry, and air conditioning chemicals, as well as other pharmaceutical syntheses and metal alloys. Further, it produces potassium sulfate; and potassium chloride which is used as a fertilizer for the application of potassium to different crops. Additionally, the company produces and markets industrial chemicals, such as sodium nitrate mainly used in the production of glass and explosives, metal processing and recycling, and production of insulating materials and adhesives; potassium nitrate used as a raw material to produce frits and special glass, as well as in the enamel, metal treatment, and pyrotechnic sectors; solar salts used as a thermal storage medium in solar power generation plants; and potassium chloride as an additive in oil drilling and food processing sectors. Furthermore, it is involved in the commercialization of third-party fertilizers; and exploration of copper, gold, and silver deposits. The company was founded in 1926 and is headquartered in Santiago, Chile.

Sasol Limited operates as a chemical and energy company in South Africa and internationally. It offers alumina, such as battery materials, catalyst supports, abrasives and polishing, and polymer additives; cobalt fischer-tropsch catalysts; carbon-based and recarburiser products; graphite electrodes; and mono-ethylene glycol and chlor-alkali products, monomers, mining chemicals and reagents, blends and hydrocarbons, methanol products, polymers, phenolics, and fertilizers. The company also provides linear alkyl benzene, sulfonate, macrogol/polyethylene glycol, ethanol, isopropyl, acetone, and MIBK and ethyl acetate products; and fatty alcohols, alkoxylates, ether sulfates, solvents, dispersants, diluents esters, alpha-hydroxy acids ester, waxes, diluents, guerbet alcohols, biosurfactants, C6-C20+ alcohols, ethoxylates, propoxylates, paraffins/isoparaffins, parafols, amines, alkylphenols, and sulfates. In addition, it offers alcohols, esters, ethers, carboxylic acids, surfactants, oil and water soluble polyglycols, formulation and surface modifiers, solvents and coalescents, wax cuts, blends and forms, FT hard waxes, blends, lubrication packages, nucleators, release agents, emulsifiers, wetting agents, tank-mix adjuvant components, fertilizer additives, and specialty solvents. Further, the company explores, develops, produces, markets, and distributes natural oil and gas, and associated products; markets fuels and lubricants; develops and implements GTL and CTL ventures; operates coal mines; trades and transports oil, petrochemicals, and chemical products and derivatives; and provides engineering, research and development, and technology transfer services. Sasol Limited was founded in 1950 and is based in Johannesburg, South Africa.

Materion Corporation, together with its subsidiaries, produces advanced engineered materials used in semiconductor, industrial, aerospace and defense, automotive, energy, consumer electronics, and telecom and data center in the United States, Asia, Europe, and internationally. The company operates in four segments: Performance Materials, Electronic Materials, Precision Optics, and Other. The company provides advanced engineered solutions comprising beryllium and non-beryllium containing alloy systems and custom engineered parts in strip, bulk, rod, plate, bar, tube, and other customized shapes; engineering and product development services; alloyed metals, beryllium products, and beryllium hydroxide; precision strip, rod, and wire products, as well as engineered strip metal products; and ToughMet alloys and SupremEX aluminum silicon carbide metal matrix composite formulation products. It operates the bertrandite ore mine and refinery located in Utah that provides feedstock hydroxide for its beryllium businesses and external sale. In addition, it produces advanced chemicals, microelectronics packaging, precious metal, non-precious metal, and specialty metal products, including vapor deposition targets, frame lid assemblies, clad and precious metal pre-forms, high temperature braze materials, and ultra-pure wire. Further, the company designs and produces precision thin film coatings, optical filters, and assemblies. The company sells its products directly from its facilities, as well as through company-owned service centers, outside distributors, agents, direct sales offices, and independent sales representatives. The company was formerly known as Brush Engineered Materials Inc. and changed its name to Materion Corporation in March 2011. Materion Corporation was founded in 1921 and is headquartered in Mayfield Heights, Ohio.

Kronos Worldwide, Inc. produces and markets titanium dioxide pigments (TiO2) in Europe, North America, the Asia Pacific, and internationally. The company produces TiO2 in two crystalline forms, rutile and anatase to impart whiteness, brightness, opacity, and durability for various products, including paints, coatings, plastics, paper, fibers, and ceramics, as well as for various specialty products, such as inks, foods, and cosmetics. It also produces ilmenite, a raw material used directly as a feedstock by sulfate-process TiO2 plants; iron-based chemicals, which are used as treatment and conditioning agents for industrial effluents and municipal wastewater, as well as in the manufacture of iron pigments, cement, and agricultural products; specialty chemicals for use in the formulation of pearlescent pigments, and production of electroceramic capacitors for cell phones and other electronic devices, as well as for use in natural gas pipe, and other specialty applications. In addition, the company provides technical services for its products. It sells its products under the KRONOS brand through agents and distributors to paint, plastics, decorative laminate, and paper manufacturers. The company was founded in 1916 and is headquartered in Dallas, Texas. Kronos Worldwide, Inc. is a subsidiary of Valhi, Inc.

Tronox Holdings plc operates as a vertically integrated manufacturer of TiO2 pigment in North America, South and Central America, Europe, the Middle East, Africa, and the Asia Pacific. The company operates titanium-bearing mineral sand mines; and engages in beneficiation and smelting operations. It offers TiO2 pigment; ultrafine specialty TiO2; zircon; feedstock; pig iron; monazite; titanium tetrachloride; and other products. The company's products are used for the manufacture of paints, coatings, plastics, and paper, as well as various other applications. Tronox Holdings plc is based in Stamford, Connecticut.

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.