Bad Homburg v. d. Höhe, September 16, 2002

ALTANA announces transfer of the PU Foam Surfactants Business from GE Bayer Silicones

Bad Homburg, September 16, 2002 BYK-Chemie GmbH, Wesel, a company of ALTANA Chemie AG, has taken over the PU foam surfactants business of GE Bayer Silicones GmbH & Co. KG, Leverkusen, effective September 1st, 2002. The worldwide marketing rights for these products have been transferred to BYK-Chemie. Specific financial details were not announced.

?This deal offers interesting opportunities for BYK-Chemie, we can now make full use of our know-how and competences in the development and production of foam surfactants to the benefit of the customer?, comments Dr. Roland Peter, Managing Director of BYK-Chemie.

BYK-Chemie distributes foam surfactants as important additives to chemicals companies for the manufacturing of flexible and rigid Polyurethane foams e.g. for mattresses, furniture, appliances or applications in constructions.

About the company
ALTANA AG (NYSE: AAA) is an international Pharmaceuticals and Chemicals Group with sales of € 2.3 billion in 2001 and about 9,500 employees all over the world. Its Pharmaceuticals division, ALTANA Pharma (Constance), concentrates on the areas Therapeutics, Diagnostics and OTC medication, and focuses on innovative pharmaceutical research (gastroenterology, respiratory, oncology). ALTANA Pharma represents a group of about 30 subsidiaries and affiliates in Europe, the Americas and Asia. The Chemicals division, ALTANA Chemie, develops, produces and sells Additives, Coatings and other specialty chemicals worldwide. The Chemicals division has more than 20 subsidiaries and affiliates all over the world.

This press release contains forward-looking statements, i.e. current estimates or expectations of future events or future results. These statements are based on beliefs of ALTANA's management as well as assumptions made by and information currently available to ALTANA. Many factors that ALTANA is unable to predict with accuracy could cause results materially different from those that may be expressed or implied by such forward-looking statements.

Forward-looking statements speak only as of the date they are made. ALTANA does not intend, and does not assume any obligation, to update forward-looking statements to reflect facts, circumstances or events that have occurred or changed after such statements have been made.