Release of an announcement according to Section 21 WpHG

[German Securities Trading Act]

2008/05/21

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 share of the voting rights in our company had fallen below the threshold of 3% on 13 May 2008 and totalled 1.44% (2,973,925 voting rights). Of these, 0.15% (305,662 voting rights) are attributable to UBS AG in accordance with Section 22, para. 1, sentence 1, item 1 of the WpHG.

Munich, 21 May 2008

The Board of Management