USG Corporation

USG Corporation is a Fortune 500 manufacturer and distributor of high-performance building systems through its United States Gypsum Company, USG Interiors, Inc. and L&W Supply Corporation subsidiaries. Headquartered in Chicago, USG serves the residential and non-residential construction markets, repair and remodel construction markets, and industrial processes. USG's wall, ceiling, flooring and roofing products provide leading-edge building solutions for customers, while L&W Supply center locations efficiently stock and deliver building materials nationwide. For additional information, visit the USG Web site at www.usg.com.