ex24-1.htm

Each person whose signature appears below constitutes and appoints each of Peter Wirth and Günther Braun, acting singly, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all amendments, including post-effective amendments, to this Registration Statement and to any other documents filed with the Securities and Exchange Commission and to file the same, with all exhibits to the Registration Statement and other documents in connection with the Registration Statement, with the Securities and Exchange Commission or any other regulatory authority, grants to each such attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he might or could do in person, and ratifies and confirms all that each attorney-in-fact and agent, or his substitute, may lawfully do or cause to be done by virtue of this power of attorney.

Signature	Title	Date

/s/ Günther Braun Günther Braun	President, Chief Executive Officer, and Director (Principal Executive Officer)	May 10, 2011

/s/ Ingrid Mittelstaedt Ingrid Mittelstaedt	Chief Financial Officer (Principal Financial and Accounting Officer)	May 10, 2011

/s/ Peter Wirth Peter Wirth	Non-Executive Chairman of the Board	May 10, 2011

/s/ Ralph E. Reins Ralph E. Reins	Director	May 10, 2011

/s/ Gary K. Willis Gary K. Willis	Director	May 10, 2011

/s/ Carl F. Baasel Carl F. Baasel	Director	May 10, 2011

/s/ Daniel J. Smoke Daniel J. Smoke	Director	May 10, 2011

/s/ Stephen D. Fantone Stephen D. Fantone	Director	May 10, 2011