Florence, Ky., June 11, 2007 – Ticona, the engineering polymers business of Celanese Corporation, announced a price increase for its four polyester product lines in North and South America. Celanex® thermoplastic polyester (PBT) and Impet® thermoplastic polyester (PET) will increase $0.12/lb. Vandar® thermoplastic polyester alloy and Riteflex® thermoplastic polyester elastomer will increase $0.18/lb.
Pricing will increase as existing contracts allow and will apply to shipments in the Americas beginning July 2, 2007.

About Ticona and Celanese
Ticona, the engineering polymers business of Celanese Corporation, produces and markets a broad range of high performance products, and achieved net sales of $915 million in 2006. Ticona employs approximately 2,000 individuals at production, compounding and research facilities in the USA, Germany and Brazil.

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.