Executive Board

As of December 31, 2009

Dr. Rudolf Staudigl

President & CEO

WACKER SILICONES
Executive Personnel
Corporate Development
Corporate Communications
Investor Relations
Corporate Auditing
Legal & Insurance
Corporate R&D
Intellectual Property

Chairman of the Supervisory Board
Siltronic AG** (since September 24, 2009)
Pensionskasse der Wacker Chemie VVaG
Member of the Supervisory Board
Siltronic AG** (until September 24, 2009)
Groz-Beckert KG
Member of the Advisory Council
Deutsche Bank AG
Chairman of Bayerische Chemieverbände

Dr. Joachim Rauhut

WACKER POLYSILICON
Corporate Accounting
Corporate Controlling
Corporate Finance
Information Technology
Raw Materials Procurement
Technical Procurement & Logistics
Tax
Region: The Americas

Member of the Supervisory Board
Siltronic AG**
Pensionskasse der Wacker Chemie VVaG
MTU Aero Engines Holding AG
(since May 26, 2009)
MTU Aero Engines GmbH
(since May 26, 2009)
Member of the Advisory Council
J. Heinrich Kramer Holding GmbH

Dr. Wilhelm Sittenthaler

SILTRONIC
Human Resources (Personnel Director)
Regions: India, Asia/Pacific

President & CEO
Siltronic AG** (since September 24, 2009)
Chairman of the Supervisory Board
Siltronic AG** (until September 24, 2009)
Member of the Supervisory Board
Pensionskasse der Wacker Chemie VVaG
Chairman of the Board of Directors
Siltronic Samsung Wafer Pte. Ltd.***

Auguste Willems

WACKER POLYMERS
WACKER FINE CHEMICALS

Corporate Engineering
Sales & Distribution
Corporate Security
Site Management
Environment, Health, Safety
Product Stewardship
Regions: Europe, Middle East

** Subsidiary
*** Joint venture