USG Corporation (USG), through its subsidiaries, is a manufacturer and distributor of building materials. The Company produces a range of products for use in new residential, new nonresidential, and residential and nonresidential repair and remodel construction, as well as products used in industrial processes. The Company operates in four segments: Gypsum, Ceilings, Distribution and USG Boral Building Products (UBBP). The Gypsum segment manufactures gypsum wallboard; the Ceilings segment manufactures and markets interior systems products; the Distribution segment consists of L&W Supply, a distributor of gypsum wallboard and other building materials, and the Company's UBBP segment manufactures, distributes and sells building products, mines raw gypsum and sells natural and synthetic gypsum. The Company's brands include DUROCK, FIBEROCK, LEVELROCK, RED TOP, IMPERIAL, DIAMOND, SUPREMO, RADAR, ECLIPSE, MARS, USG Boral Sheetrock and USG Boral NextGen, among others.