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:    see below
Place:   see below
State:   USA

Company data:
Name:    Wacker Chemie AG
Address: Hanns-Seidel-Platz 4, 81737 München
Place:   Munich
State:   Germany

31.07.2007

Notification of voting rights pursuant to section 21(1) sentence 1 
German Securities Act

In the name and on behalf of Artisan Funds, Inc., we hereby notify 
you of the following:

On July 23,2007, the stake of Artisan Funds, Inc., 875 E. Wisconsin 
Ave., Suite 800, Milwaukee, Wisconsin 53202, USA, in the voting 
rights in Wacker Chemie AG, Hanns-Seidel-Platz 4, 81737 Munchen, 
Germany, exceeded the threshold of 3%. On that date, Artisan Funds, 
Inc. held 3.02% in relation to all voting rights in Wacker Chemie AG 
(voting rights arising from 1,574,518 ordinary shares (Stammaktien); 
Wacker Chemie AG has issued ordinary shares only).

end of announcement                               euro adhoc 31.07.2007 08:35:24

Further inquiry note:

Branche: Chemicals
ISIN: DE000WCH8881
WKN: WCH888
Index: CDAX, Classic All Share, HDAX, MDAX, Midcap Market Index,
Prime All Share
Börsen: Börse Frankfurt / official dealing/prime standard