euro adhoc: Wacker Chemie AG / Release of a voting rights announcement according to article 26, section 1 WpHG (Securities Trading Act) with the aim of a Europe-wide distribution

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Notification of voting rights transmitted by euro adhoc. The issuer is
responsible for the content of this announcement.
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Person/company obliged to make the notification:
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Name: see below
Place: see below
State: USA

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

11.04.2007

We hereby disclose the following notification of voting rights
according to section 21 (1 WpHG):

1. On March 30, 2007, the stake of Artisan Partners Limited
Partnership, Milwaukee, Wisconsin 53202, USA, in the voting rights in
Wacker Chemie AG exceeded the threshold of 3%. On that date, Artisan
Partners Limited Partnership held 3.10% in relation to all voting
rights in Wacker Chemie AG (voting rights arising from 1,615,019
ordinary shares (Stammaktien); Wacker Chemie AG has issued ordinary
shares only). All voting rights in Wacker Chemie AG were attributed
to Artisan Partners Limited Pastnership pursuant to section 22 (1)
sent. 1 no. 6 WpHG.

2. On March 30, 2007, the stake of Artisan Investment Corporation,
Milwaukee, Wisconsin 53202, USA, in the voting rights in Wacker
Chemie AG exceeded the threshold of 3%. On that date, Artisan
Investment Corporation held 3.10% in relation to all voting rights in
Wacker Chemie AG (voting rights arising from 1,615,019 ordinary
shares (Stammaktien)). All voting rights in Wacker Chemie AG were
attributed to Artisan Investment Corporation pursuant to section 22
(1) sent. 1 no. 6 in connection with sent. 2 and 3 WpHG.

3. On March 30, 2007, the stake of ZFIC, Milwaukee, Wisconsin 53202,
USA, in the voting rights in Wacker Chemie AG exceeded the threshold
of 3%. On that date, ZFIC, Inc. held 3.10% in relation to all voting
rights in Wacker Chemie AG (voting rights arising from 1,615,019
ordinary shares (Stammaktien)). All voting rights in Wacker Chemie AG
were attributed to ZFIC, Inc. pursuant to section 22 (1) sent. 1 no.
6 in connection with sent. 2 and 3 WpHG.

4. On March 30, 2007, the stake of Mr Andrew A. Ziegler, USA, in the
voting rights in Wacker Chemie AG exceeded the threshold of 3%. On
that date, Mr Andrew A. Ziegler held 3.10% in relation to all voting
rights in Wacker Chemie AG (voting rights arising from 1,615,019
ordinary shares (Stammaktien)). All voting rights in Wacker Chemie AG
were attributed to Mr. Andrew A. Ziegler pursuant to section 22 (1)
sent. 1 no. 6 in connection with sent. 2 and 3 WpHG.

5. On March 30, 2007, the stake of Ms. Carlene M. Ziegler, USA, in
the voting rights in Wacker Chemie AG exceeded the threshold of 3%.
On that date, Ms. Carlene M. Ziegler held 3.10% in relation to all
voting rights in Wacker Chemie AG (voting rights arising from
1,615,019 ordinary shares (Stammaktien)). All voting rights in Wacker
Chemie AG were attributed to Ms. Carlene M. Ziegler pursuant to
section 22 (1) sent. 1 no. 6 in connection with sent. 2 and 3 WpHG.

end of announcement euro adhoc 11.04.2007 13:36:40
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ots Originaltext: Wacker Chemie AG
Im Internet recherchierbar: http://www.presseportal.de

Further inquiry note:

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