Hans T. Piaz

citizen of Zurich, Weisslingen

Commercial register

BNP PARIBAS PRIVATE BANK (SWITZERLAND) SA

Member of the board of directors · no signing authority · Genève

since Oct 4, 2001
Diethelm & Co AG

Member of the board of directors · joint signature by two · Zürich

until Jan 25, 2001

Member of the board of directors · Generaldirektor · joint signature by two

until Aug 7, 1998

Member of the board of directors · Generaldirektor · sole signature

until Sep 18, 1996

Member of the board of directors · Director · sole signature

until Feb 3, 1993

Director · sole signature

until Aug 14, 1992
VON HOFF AG

Member of the board of directors · joint signature by two · Dietikon

until Sep 21, 1998
Anticimex AG

Chair of the board of directors · joint signature by two · Dielsdorf

until Sep 21, 1998

Chair of the board of directors · sole signature

until Sep 12, 1996
Turmix AG

Chair of the board of directors · joint signature by two · Küsnacht (ZH)

until Sep 15, 1998

Chair of the board of directors · sole signature

until Aug 14, 1996
Medinova AG

Member of the board of directors · sole signature · Zürich

until Feb 8, 1993