Celanese Corporation (NYSE:CE), a global technology and specialty materials company, today announced that its wholly-owned subsidiary, Celanese US Holdings LLC (the “Issuer”), intends to offer $500 million aggregate principal amount of senior notes due 2022 (the “Notes”). The Notes will be senior unsecured obligations of the Issuer and will be guaranteed by the company and certain of its U.S. subsidiaries. The company intends to use the net proceeds from the offering, together with cash on hand, to repay a portion of its existing senior secured credit facility indebtedness and to make a contribution to the company’s U.S. pension plan, which will reduce aggregate pension obligations. Deutsche Bank Securities, BofA Merrill Lynch, Citigroup, HSBC and J.P. Morgan are acting as joint book-running managers for the offering, with Barclays, COMMERZBANK, Goldman, Sachs & Co., Mitsubishi UFJ Securities, Morgan Stanley and RBS acting as co-managers. The Notes are being offered pursuant the company’s shelf registration statement previously filed with the Securities and Exchange Commission. A preliminary prospectus supplement relating to the offering has been filed with the Securities and Exchange Commission. This press release shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of the securities in any state in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state. Copies of the preliminary prospectus supplement and accompanying prospectus may be obtained by visiting EDGAR on the Securities and Exchange Commission’s web site at www.sec.gov, or by contacting (i) Deutsche Bank Securities, Attention: Prospectus Department, at 60 Wall Street, New York, New York 10005-2836, by email at firstname.lastname@example.org, or by telephone at (800) 503-4611; (ii) BofA Merrill Lynch, at 222 Broadway, 7 th Floor, New York, New York 10038, Attn: Prospectus Department or by email at email@example.com; (iii) Citigroup, Attn: Prospectus Department, Brooklyn Army Terminal, 140 58th Street, 8th Floor, Brooklyn, New York 11220, by telephone at (800) 831-9146 or emailing firstname.lastname@example.org; (iv) HSBC, at 452 Fifth Avenue, New York, New York 10018, Attn: Transaction Management, or by telephone at (866) 881-8049; or (v) J.P. Morgan, c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, New York 11717 or by telephone at (866) 803-9204. About Celanese Celanese Corporation is a global technology leader in the production of specialty materials and chemical products that are used in most major industries and consumer applications. Our products, essential to everyday living, are manufactured in North America, Europe and Asia. Known for operational excellence, sustainability and premier safety performance, Celanese delivers value to customers around the globe with best-in-class technologies. Based in Dallas, Texas, the company employs approximately 7,600 employees worldwide and had 2011 net sales of $6.8 billion, with approximately 73% generated outside of North America. For more information about Celanese Corporation and its global product offerings, visit www.celanese.com or the company’s blog at www.celaneseblog.com . Forward-Looking Statements This release may contain “forward-looking statements,” which include information concerning the company’s plans, objectives, goals, strategies, future revenues or performance, capital expenditures, financing needs and other information that is not historical information. When used in this release, the words “will,” “intends,” “expects,” “outlook,” “forecast,” “estimates,” “anticipates,” “projects,” “plans,” “believes,” and variations of such words or similar expressions are intended to identify forward-looking statements. All forward-looking statements are based upon current expectations and beliefs and various assumptions. There can be no assurance that the company will realize these expectations or that these beliefs will prove correct. The company’s ability to successfully complete the transactions referred to in this press release is subject to numerous factors and contingencies, many of which are beyond the company’s control. These include local and national economic, credit and capital market conditions, including prevailing interest rates; legal and regulatory developments, including changes to tax rates, applicable securities regulations or accounting standards; and geopolitical conditions, including the occurrence of acts of war or terrorist incidents or natural disasters. Any of these factors or others not named herein could cause the company to abandon the referenced transactions or cause the company’s actual results to differ materially from those expressed as forward-looking statements. In addition, other risk factors that could cause actual results to differ materially from the forward-looking statements contained in this release include those that are discussed in the company’s filings with the Securities and Exchange Commission. Any forward-looking statement speaks only as of the date on which it is made, and the company undertakes no obligation to update any forward-looking statements to reflect events or circumstances after the date on which it is made or to reflect the occurrence of anticipated or unanticipated events or circumstances.