Publication pursuant to Section 26(1) of the German Securities Trading Act (WpHG) for the purpose of Europe-wide dissemination [3]

Publication of a voting rights notice, transmitted by DGAP—a subsidiary of EquityStory AG. The issuer is responsible for the content of this notice.

We hereby notify you, pursuant to Section 21(1a) of the German Securities Trading Act (WpHG), that the voting interest held by WestLB AG, Herzogstr. 15, 40217 Düsseldorf, in ESTAVIS AG, Uhlandstr. 165, 10719 Berlin, as of March 30, 2007—the date on which the shares of ESTAVIS AG were first admitted to trading on the regulated market (Prime Standard segment) of the Frankfurt Stock Exchange—amounts to approximately 8.54% (660,000 voting rights), thereby exceeding the 3% and 5% thresholds specified in Section 21(1) of the WpHG.

Of this amount,

- approximately 8.54% (660,000 voting rights) are attributable pursuant to Section 22(1), sentence 1, no. 2 of the WpHG.

Voting rights are attributed to the following shareholders, each of whom holds 3% or more of the voting rights in ESTAVIS AG:

- JPMorgan Cazenove Limited, 20 Moorgate, London EC2R 6DA, United Kingdom: approximately 8.54% (660,000 voting rights) pursuant to Section 22(1), sentence 1, no. 2 of the WpHG.

The shares were acquired for a limited period as part of the settlement of ESTAVIS AG’s initial public offering.

WestLB AG

DGAP April 4, 2007

Language: German

Issuer: ESTAVIS AG Uhlandstr. 165 10719 Berlin

Germany

www: investors.accentro.de

End of the announcement - DGAP News Service