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 through two segments, Electronic Materials and Performance Materials. The Electronic Materials segment provides chemical mechanical planarization (CMP) are used for polishing various materials used in IC devices, including tungsten, dielectric materials, copper, tantalum, and aluminum; and 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. The Performance Materials segment engages in pipeline and industrial materials business; provides routine and emergency maintenance services; polymer-based drag-reducing agents for crude oil transmission; and valve greases, cleaners and sealants, and related services and equipment. This segment also offers precision polishing and metrology systems for advanced optics applications; and magneto-rheological polishing fluids, consumables, and spare and replacement parts, as well as optical polishing services and other customer support services. It also engages in the wood treatment business. The company was formerly known as Cabot Microelectronics Corporation and changed its name to CMC Materials, Inc. in October 2020. CMC Materials, Inc. was founded in 1999 and is headquartered in Aurora, Illinois.