Published On: Fri, Jul 8th, 2011

Ticona Increases Prices for Polyester Products

Celanese Corporation (NYSE: CE), a global technology and specialty materials company,

and its Ticona engineering polymers business, today announced it is increasing prices for Celanex® PBT, Vandar® PBT, Impet® PET and Riteflex® TPC-ET polyesters in the Americas and Europe as follows:

* Americas: $0.15 per pound, or higher on selected products
* Europe: €0.25 per kilogram, or higher on selected products

These increases take effect on customer shipments beginning July 29, 2011, or as contracts allow.

About Celanese

Celanese Corporation is a global technology leader in the production of specialty materials and chemical products which 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 7,250 employees worldwide and had 2010 net sales of $5.9 billion, with approximately 72% generated outside of North America. For more information about Celanese Corporation and its global product offerings, visit www.celanese.com.

About Ticona

Ticona, the engineering polymers business of Celanese Corporation, produces and markets a broad range of high performance products, and posted net sales of $1,109 million in fiscal 2010. Ticona employs more than 1,450 individuals at production, compounding and research facilities in the USA, Germany, Brazil and China. For more information, please visit www.ticona.com or www.ticona.cn (Chinese language).

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 “outlook,” “forecast,” “estimates,” “expects,” “anticipates,” “projects,” “plans,” “intends,” “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. There are a number of risks and uncertainties that could cause actual results to differ materially from the forward-looking statements contained in this release. Numerous factors, many of which are beyond the company’s control, could cause actual results to differ materially from those expressed as forward-looking statements. Certain of these risk factors 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.

Celanese® is a registered trademark of Celanese International Corporation. All registered trademarks are owned by Ticona or its affiliates.