euro adhoc: Wacker Chemie AG / Release of a voting rights announcement according to article 26, section 1.1 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: see below

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

01.10.2007

1. On September 24, 2007, the stake of Artisan Partners Limited
Partnership, Milwaukee, Wisconsin 53202, USA, in the voting rights in
Wacker Chemie AG, Muenchen, Germany, exceeded the threshold of 5%. On
that date, Artisan Partners Limited Partnership held 5.03% in
relation to all voting rights in Wacker Chemie AG (voting rights
arising from 2,621,340 ordinary shares (Stammaktien); Wacker Chemie
AG has issued ordinary shares only). All voting rights in Wacker
Chemie AG were attributed to Artisan Partners Limited Partnership
pursuant to section 22 (1) sent. 1 no. 6 WpHG. Of such voting rights,
3.23% (voting rights arising from 1,682,244 ordinary shares
(Stammaktien)) were voting rights arising from shares held by Artisan
Funds, Inc.

2. On September 24, 2007, the stake of Artisan Investment
Corporation, Milwaukee, Wisconsin, USA, in the voting rights in
Wacker Chemie AG, Muenchen, Germany, exceeded the threshold of 5%. On
that date, Artisan Investment Corporation held 5.03% in relation to
all voting rights in Wacker Chemie AG (voting rights arising from
2,621,340 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. Of such voting rights, 3.23% (voting rights arising from
1,682,244 ordinary shares (Stammaktien)) were voting rights arising
from shares held by Artisan Funds, Inc.

3. On September 24, 2007, the stake of ZFIC, Inc., Milwaukee,
Wisconsin, USA, in the voting rights in Wacker Chemie AG, Muenchen,
Germany, exceeded the threshold of 5%. On that date, ZFIC, Inc, held
5.03% in relation to all voting rights in Wacker Chemie AG (voting
rights arising from 2,621,340 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. Of such voting rights, 3.23% (voting rights arising from
1,682,244 ordinary shares (Stammaktien)) were voting rights arising
from shares held by Artisan Funds, Inc.

4. On September 24, 2007, the stake of Mr Andrew A. Ziegler, USA, in
the voting rights in Wacker Chemie AG, Germany, exceeded the
threshold of 5%. On that date, Mr Andrew A. Ziegler held 5.03% in
relation to all voting rights in Wacker Chemie AG (voting rights
arising from 2,621,340 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. Of such voting rights, 3.23% (voting rights arising from
1,682,244 ordinary shares (Stammaktien)) were voting rights arising
from shares held by Artisan Funds, Inc.

5. On September 24, 2007, the stake of Ms. Carlene M. Ziegler, USA,
in the voting rights in Wacker Chemie AG, Germany, exceeded the
threshold of 5%. On that date, Ms. Carlene M. Ziegler held 5.03% in
relation to all voting rights in Wacker Chemie AG (voting rights
arising from 2,621,340 ordinary shares (Stammaktien)). All voting
rights in Wacker Chemie AG were attributed to Ms. Carlene M. Ziegler
pursuant to section 22 (I) sent. 1 no. 6 in connection with sent. 2
and 3 WpHG. Of such voting rights, 3.23% (voting rights arising from
1,682,244 ordinary shares (Stammaktien)) were voting rights arising
from shares held by Artisan Funds, Inc.

end of announcement euro adhoc 01.10.2007 13:31:20
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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: Börse Frankfurt / official dealing/prime standard