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:    Rössler, Hans Dieter
Address: Auerbachstr. 2
Place:   63856 Bessenbach
State:   Germany
Company data:
Name:    curasan AG
Address: Lindigstrasse 4, 63801 Kleinostheim
Place:   Kleinostheim
State:   Deutschland

01.03.2007

Stock of shares on January 20, 2007 = 2,127,000

Threshold of 30% exceeded.

end of announcement                               euro adhoc 01.03.2007 14:19:47

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