Celanese Names Josh Cheng as its President for China.

DALLAS & SHANGHAI, China -- Celanese Corporation (NYSE:CE) (FWB:CZZ): today announced the appointment of Josh Cheng as president, Celanese China, starting May 16, 2005.

Since 1998 Cheng has held various leadership positions for General Electric (GE) in China, most recently as managing director for GE Equipment Service. Prior to joining GE, he was senior consultant and deputy chief representative for McKinsey & Company in China and country manager for the consulting firm Kamsky Associates.

Cheng graduated from Hebei University, China and attended a graduate program at the Chinese Academy of Social Science. He holds masters degrees in Economics from Stanford University, U.S.

Cheng succeeds George McGinn, who is assuming other leadership responsibilities within the company.

Celanese has been doing business in China since the 1960s and began to establish joint ventures in China in the 1980s. It has long-standing ventures in cellulose acetate, and has recently established a new polyacetal engineering plastics joint venture site in Nantong. In addition, Celanese operates a trading company in Shanghai and offices throughout mainland China. Most recently Celanese established a holding company in China, which incorporates all of Celanese's consolidated China operations and is headquartered in Shanghai. Celanese is currently in the construction phase of a 600,000 metric ton acetic acid plant in the Nanjing Chemical Industry Park, Nanjing. The plant is expected to be ready for production in late 2006/early 2007.

Celanese Corporation (NYSE:CE) is an integrated global producer of value-added industrial chemicals based in Dallas, Texas. The Company holds #1 or #2 market positions in products comprising the majority of its sales and has four major businesses: Chemicals Products, Technical Polymers Ticona, Acetate Products and Performance Products. Celanese has 29 production plants, with major operations in North America, Europe and Asia. In 2004, Celanese Corporation and its predecessor had combined net sales of $5.1 billion. The presentation of combined net sales of Celanese Corporation with its predecessor is not in accordance with U.S. GAAP. For more information on Celanese Corporation including a reconciliation of the combined net sales, please visit the company's web site at www.celanese.com.