Celanese today announced that it will increase the price of all Celvol and Celvol E Polyvinyl Alcohol (PVOH) grades globally by 7% per dry pound. This price increase will be effective on June 1, 2007, or as contracts allow.

About the Emulsions & PVOH Business of Celanese

The Emulsions & PVOH business of Celanese is a global leader in the development and application of polymer emulsion and PVOH technology to improve performance, create value and drive innovation in a broad range of industrial and consumer end-use applications including adhesives, coatings, engineered fabrics, glass fibers, paper, textiles and more. The business has manufacturing, R&D and technical service facilities across North America, Europe and Asia. More information about the Emulsions & PVOH business of Celanese is available at www.connectcelanese.com.

About Celanese

As a global leader in the chemicals industry, Celanese Corporation (NYSE: CE) 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 approximately 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 8,500 employees worldwide. For more information on Celanese Corporation, please visit the company's website at www.celanese.com.