31.07.2003 – 18:41

Aeco N.V.

euro adhoc: Catalis N.V.
Board of Directors (Appointments and Changes)
Change in the board of directors of Catalis N.V. (E)

Disclosure announcement transmitted by euro adhoc. The issuer is
responsible for the content of this announcement.

Eindhoven, July 31, 2003 - Johann Ostermayer resigned from his
position as a member of the board effective by July 31, 2003. The
decision was made conjointly with the company's supervisory board.

end of announcement        euro adhoc 31.07.2003

Further inquiry note:

Catalis N.V.
Sarah McTweed
Pinewood Studios
Iver, Buckinghamshire
Slo oNH
United Kingdom
Tel: +44 1753 78 33 30
Fax: +44 1753 78 33 32

Branche: Semiconductors & active components
ISIN: NL0000233625
WKN: 927093
Index:
Börsen: Frankfurter Wertpapierbörse / regulated dealing
Niedersächsische Börse zu Hannover / free trade
Berliner Wertpapierbörse / free trade
Hamburger Wertpapierbörse / free trade
Börse Düsseldorf / free trade
Baden-Württembergische Wertpapierbörse / free trade