USG Corporation (NYSE: USG), a leading building products company, today announced that it launched a private offering of $350 million aggregate principal amount of senior notes. The notes will be the unsecured obligations of USG. USG’s obligations under the notes will be guaranteed on a senior unsecured basis by certain of its domestic subsidiaries. USG intends to use the net proceeds from the sale of the notes to fund a portion of USG’s initial $500 million cash investment (consisting of the net proceeds of sale of the notes and cash on hand) in its previously announced proposed joint venture with Boral Limited. If USG does not complete the joint venture, USG intends to use the net proceeds from the sale of the notes for general corporate purposes, which may include the repayment of indebtedness, the funding of pension obligations, working capital, capital expenditures and potential acquisitions. The notes will be offered and sold only to qualified institutional buyers in accordance with Rule 144A under the Securities Act of 1933 (the “Securities Act”), and to non-U.S. persons in accordance with Regulation S under the Securities Act. When issued, the notes will not have been registered under the Securities Act or state securities laws and may not be offered or sold in the United States absent registration or an applicable exemption from the registration requirements of the Securities Act and applicable state securities laws. This press release does not constitute an offer to sell or the solicitation of an offer to buy the notes or any other securities and shall not constitute an offer, solicitation or sale in any jurisdiction in which, or to any person to whom, such an offer, solicitation or sale is unlawful. Any offers of the notes will be made only by means of a private offering circular. About USG USG Corporation is a manufacturer and distributor of innovative, high-performance building systems through its United States Gypsum Company, USG Interiors, LLC, L&W Supply Corporation and other subsidiaries. Headquartered in Chicago, USG Worldwide operations serve the commercial, residential, and repair and remodel construction markets, enabling our customers to build the outstanding spaces where people live, work and play. USG wall, ceiling, exterior sheathing, flooring underlayment and roofing systems provide leading-edge building solutions, while L&W Supply branch locations efficiently stock and deliver building materials throughout the United States. USG and its subsidiaries are proud sponsors of the U.S. Olympic and Paralympic teams and the Canadian Olympic team.