Former Chairman of the Board of Management of former STEAG AG, Essen
Membership of a compulsory Supervisory Board of a German company (as of March 8, 2011)
- National Bank AG
Membership of a comparable non-executive body of a German or foreign company (as of March 8, 2011)
- Ernst & Young AG
- Universitätsklinikum Essen AöR
- Schauenburg Technology SE
- Schauenburg-Gruppe





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