USG Corporation, through its subsidiaries, manufactures and sells building materials worldwide. The company's Gypsum division manufactures and markets gypsum and related products to construct walls and ceilings of residential, nonresidential, and institutional buildings; and agricultural and industrial customers. This segment offers gypsum wallboards and compound portfolios, as well as corner beads, joint tapes, and plasters under the USG Sheetrock brand; glass mat sheathing portfolios under the Securock brand; construction plaster products under the Red Top, Imperial, Diamond, and Supremo brands; and lightweight gypsum panels under the USG Sheetrock brand, as well as ultralight panels, USG Sheetrock brand ecosmart panels, and industrial gypsum. Its Performance Materials division manufactures and markets products for interior and exterior building applications of residential and nonresidential buildings, as well as industrial applications. This segment provides cement boards, backer boards, shower systems, performance floorings, air barrier systems, roof board portfolios, and structural panels under the USG Durock, Fiberock, Levelrock, Securock, ExoAir, Securock, and USG brands. The company's Ceilings division manufactures and markets ceiling tiles under the Radar, Eclipse, Mars, and Halcyon brands; ceiling grids under the Donn, DX, Fineline, Centricitee, and Identitee DXI brands; specialty ceilings under the Curvatura, Compasso, Radians, Illusions, Multiples, Runways, Barz, Planx, Mirra, Corniche, Wallforms, and Parti brands; and acoustical drywall ceilings under the Ensemble brand. Its USG Boral Building Products division manufactures, distributes, and sells building products, mines raw gypsum, and sells natural and synthetic gypsum under the USG Boral Sheetrock, USG Boral NextGen, Elephant, Jayaboard, Durock, and Donn DX brands. The company was founded in 1902 and is headquartered in Chicago, Illinois.