Celanese Acetate, Teijin Form Marketing Alliance

Celanese AG, Germany, and Teijin Ltd., Japan, recently signed a marketing and sales assistance
agreement. Under the terms of the agreement, Teijin will market Celanese Acetate filament products
in Japan as an independent consultant and will assist with sales in the Asia region. In addition,
Teijin has discontinued production of acetate flake and acetate filament. The two companies agreed
the marketing alliance is the best way to meet the ongoing needs of customers in the region. A
previously contemplated joint venture was no longer considered viable.

March 2002