Notification of voting rights transmitted by euro adhoc. The issuer is
  responsible for the content of this announcement.

Person/company obliged to make the notification:
Name:    Gebhard & Co. Wertpapierhandelsbank AG
Place:   Gräfelfing
State:   Germany

Company data:
Name:    curasan AG
Address: Lindigstrasse 4, 63801 Kleinostheim
Place:   Kleinostheim
State:   Deutschland

02.04.2007

On March 29, 2007, Gebhard & Co. Wertpapierhandelsbank AG, 
Gräfelfing, Germany, informed us according to article 21, section 1 
WpHG that on March 23, 2007 their voting rights on curasan AG (ISIN 
DE 000 549 453 8 / WKN 549453), 63801 Kleinostheim, Germany, exceeded
the thresholds of 3 % and 5 % and amounted to 8.42 % (575,000 voting 
rights) on that day.

end of announcement                               euro adhoc 02.04.2007 15:11:02

Further inquiry note:

Branche: Biotechnology
ISIN: DE0005494538
WKN: 549453
Index: CDAX, Classic All Share, Prime All Share
Börsen: Frankfurter Wertpapierbörse / regulated dealing/prime
standard
Börse Berlin-Bremen / free trade
Hamburger Wertpapierbörse / free trade
Baden-Württembergische Wertpapierbörse / free trade
Börse Düsseldorf / free trade
Niedersächsische Börse zu Hannover / free trade
Bayerische Börse / free trade