Release of a Voting rights announcement according to section 21, para. 1 WpHG

[German Securities Trading Act]

2007/04/05

WKN 843002
ISIN DE0008430026

UBS AG, Zurich, Switzerland, informed us in accordance with Section 21, para. 1 of the German Securities Trading Act (WpHG) that its voting rights in our company had exceeded the 3% threshold on 27 March 2007 and then amounted to 3.05% (7,002,212 voting rights). 0.03% (68,892 voting rights) are attributable to UBS AG in accordance with Section 22, para. 1, sentence 1, item 1 of the WpHG.

Munich, 5 April 2007

The Board of Management