Alfred Bührer

citizen of Schaffhausen, Zumikon

Commercial register

Chemtrading Alpha Holding AG

Member of the board of directors · sole signature · Zug

until Jul 10, 2003
Fruet Partner AG

Auditor · Opfikon

until Nov 22, 2002
Bräcker AG

Vice-chair of the board of directors · joint signature by two · Pfäffikon

until Nov 11, 2002

Member of the board of directors · joint signature by two

until Oct 26, 1993
Rohn-Salvisberg-Stiftung

Chair of the foundation board · joint signature by two · Zürich

until Oct 23, 2002
S.I. Reinag SA

Member of the board of directors · sole signature · Lausanne

until Oct 3, 2002
idArchitekt.innen sia ag

Auditor · Zürich

until Oct 1, 2002
Ziegler & Cie AG

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

until Jul 4, 2001
Monaval Vermögensverwaltungs AG

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

until Sep 28, 2000
IGIMO AG

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

until Dec 8, 1997
Buraingut AG

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

until Oct 23, 1997

Member of the board of directors · joint signature by two

until Apr 28, 1994
Roshard AG

Chair of the board of directors · sole signature · Küsnacht (ZH)

until Jan 10, 1996