Ecovyst Inc.
Ecovyst Inc. offers specialty catalysts and services in the United States and internationally. The company operates through two segments, Ecoservices and Advanced Materials & Catalysts. The Ecoservices segment provides sulfuric acid recycling services and end-to-end logistics for production of alkylate for refineries; and virgin sulfuric acid for mining, water treatment, and industrial applications. The Advanced Materials & Catalysts segment offers advanced materials and specialty catalyst products and process solutions to producers and licensors of polyethylene. This segment also offers advanced silicas and zeolite catalysts; and supplies specialty zeolites and zeolite-based catalysts to customers for refining of oil primarily hydrocracking catalyst and dewaxing, sustainable fuels, and emission control systems for both on-road and non-road diesel engines. The company was formerly known as PQ Group Holdings Inc. and changed its name to Ecovyst Inc. in August 2021. Ecovyst Inc. was founded in 1831 and is headquartered in Malvern, Pennsylvania.
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Gerdau S.A., together with its subsidiaries, operates as a steel producer company. The company operates through Brazil Business, North America Business, South America Business, and Special Steel Business segments. It provides semi-finished products, including billets, blooms, and slabs; common long-rolled products, such as rebars, wire rods, merchant bars, light shapes, and profiles to the construction and manufacturing industries; drawn products, including barbed and barbless fence wires, galvanized wires, fences, concrete reinforcing wire mesh, nails, and clamps for manufacturing, construction, and agricultural industries; and special steel products used in auto parts, light and heavy vehicles, and agricultural machinery, as well as in the oil and gas, wind energy, machinery and equipment, mining and rail, and other markets. The company also offers flat products, such as hot-rolled steel coils and heavy plates; and resells flat steel products. In addition, it operates mines that produce iron ore located in the Brazilian state of Minas Gerais. The company sells its products through independent distributors, direct sales from the mills, and its retail network. Gerdau S.A. was founded in 1901 and is based in São Paulo, Brazil.
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