Celanese Corporation to Host 2007 Annual Investor Day

Celanese Corporation (NYSE:CE), a global, hybrid chemical company, today announced that it will hold its 2007 Investor Day on Tuesday, December 11, 2007, in New York City. David Weidman, chairman and chief executive officer, will host the event. Weidman and Celanese business leaders will present an update on the company’s earnings growth strategy and 2008 outlook.

Presentations will begin at 8:30 a.m. Eastern time and conclude at 11:45 a.m. The presentations will be available by webcast on the website in the investor section or by phone at the following numbers:

Dial-in Number: 800.591.694
Secondary Dial-in Number: 617.614.4910
Participant Passcode: 29781541

Presentation materials will be available approximately 30 minutes prior to the start of the webcast.

A replay of the event will be available from December 11, 2007, until December 18, 2007, at the following numbers:

Primary Replay Number: 888-286-8010
Secondary Replay Number: 617-801-6888
Passcode: 50658831

About Celanese:
As a global leader in the chemicals industry, Celanese Corporation makes products essential to everyday living. Our products, found in consumer and industrial applications, are manufactured in North America, Europe and Asia. Net sales totaled $6.7 billion in 2006, with over 60% generated outside of North America. Known for operational excellence and execution of its business strategies, Celanese delivers value to customers around the globe with innovations and best-in-class technologies. Based in Dallas, Texas, the company employs approximately 8,900 employees worldwide. For more information on Celanese Corporation, please visit the company’s website at www.celanese.com.

Forward-looking statements (statements which are not historical facts) in this release are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Investors are cautioned that all forward-looking statements involve risks and uncertainties, including those risks and uncertainties detailed in the Company’s filings with the Securities and Exchange Commission, copies of which are available from the Company.