Wesel, December 17, 2004

Price Increase

With effect from February 1, 2005, BYK-Chemie will increase prices for all paint and plastics additives worldwide by 6%. For mineral oil defoamers the price increase will be 3.5% and for viscosity reducers 8%.

The price increases have been necessary due to the drastically increased price of raw materials, packaging and energy. At the same time, the pail surcharge of € 0.36 per kilogram will be increased to € 0.48.

For enquiries:

BYK-Chemie GmbH

Frank Dederichs

Head of Market Communication

Tel.:(0281) 670-217

Fax:(0281) 670-660

e-mail:frank.dederichs@altanachemie.com