CMC Materials, Inc., together with its subsidiaries, provides consumable materials to semiconductor manufacturers and pipeline and adjacent industry customers in North America, Asia, Europe, the Middle East, Africa, and South America. The company operates in two segments: electronic materials and performance materials. The Electronic Materials segment develops, produces, and sells chemical mechanical planarization (CMP) slurries for polishing various materials used in IC devices, including tungsten, dielectric materials, copper, tantalum, and aluminum; various materials that are used in the production of disk substrates and magnetic heads for hard disk drives; and CMP pads, which are used in conjunction with slurries in the CMP process. This segment also offers sulfuric, phosphoric, nitric, and hydrofluoric acids, as well as ammonium hydroxide, hydrogen peroxide, isopropyl alcohol, other specialty organic solvents, and various blends of chemicals, and develops and manufactures consumable products for cleaning advanced probe cards and test sockets. The Performance Materials segment provides pipeline and industrial materials comprising polymer-based drag-reducing agents for crude oil transmission, valve greases, cleaners and sealants, and related services and equipment; routine and emergency maintenance services; as well as training services. This segment also offers precision polishing and metrology systems for advanced optics applications; magneto-rheological polishing fluids, consumables, and spare and replacement parts; as well as optical polishing services and other customer support services; and engages in the wood treatment business. CMC Materials, Inc. was formerly known as Cabot Microelectronics Corporation and changed its name to CMC Materials, Inc. in October 2020. The company was incorporated in 1999 and is headquartered in Aurora, Illinois. As of July 6, 2022, CMC Materials, Inc. operates as a subsidiary of Entegris, Inc.