USG Corporation Second Quarter 2009 Earnings Conference Call and Webcast

CHICAGO, July 13 /PRNewswire-FirstCall/ -- USG Corporation (NYSE: USG), a
leading building products company, will hold a conference call and webcast to
discuss second quarter 2009 results on Wednesday, July 22, 2009, at 11:00 a.m.
Eastern Time (10:00 a.m. Central Time).

This call and webcast can be accessed at USG's web site at
http://investor.usg.com.

To participate by phone, please dial 1-800-315-2944 (U.S. & Canada).
International callers should dial 1-847-413-2929. Please call ten minutes
prior to start time. The passcode is 24942139.

A replay of the webcast will be available on the USG web site until Friday,
July 31, 2009. A telephone replay of the call will also be available. The
replay dial-in number is 1-888-843-8996 (1-630-652-3044 for international
callers), and the passcode is 24942139. The telephonic replay will be
available until Friday, July 31, 2009.

About USG
USG Corporation is a 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

Contact Information:
Media Inquiries: 312/436-4356
Investor Relations: 312/436-4125

SOURCE USG Corporation

Media Inquiries: +1-312-436-4356, Investor Relations: +1-312-436-4125