HOCHTIEF Annual Report 2006

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Boards

Subvisory Board

Dr. rer. pol. h. c. Martin Kohlhaussen

Bad Homburg, Chairman
Chairman of the Supervisory Board of Commerzbank AG,
Frankfurt am Main

Bayer AG
Commerzbank AG (Chairman)
Schering AG
ThyssenKrupp AG

Gerhard Peters *

Butzbach, Deputy Chairman, Works Council Chairman,
HOCHTIEF Construction AG, Southwest Division

HOCHTIEF Construction AG

Alois Binder *

Wyhl, Deputy Works Council Chairman, HOCHTIEF Construction
AG, Southwest Division

Detlev Bremkamp

Munich, former member of the Board of Management, Allianz AG

Asea Brown Boveri AG
A.C.I.F (Allianz Compagnia Italiana Finanziamenti S.p.A.)
Mondial Assistance S.A.S.
Lloyd Adriatico S.p.A.

Dr. jur. Gerhard Cromme - until May 10, 2006 -

Essen, Chairman of the Supervisory Board of ThyssenKrupp
AG, D�sseldorf

Allianz SE
Axel Springer AG
Deutsche Lufthansa AG
E.ON AG
Siemens AG
ThyssenKrupp AG (Chairman)
BNP Paribas S.A.
Compagnie de Saint-Gobain
SUEZ S.A.

Günter Haardt *

Frankfurt am Main, Executive Manager, Verm�gensverwaltungs- und Treuhandgesellschaft mbH der Industriegewerkschaft Bauen-Agrar-Umwelt (the asset management and trust company of the Construction, Agricultural and Environmental Employees' Union), Frankfurt am Main

HOCHTIEF Construction AG
apm alpha print medien AG

Ulrich Hartmann

D�sseldorf, Chairman of the Supervisory Board of E.ON AG,
D�sseldorf

Deutsche Bank AG
Deutsche Lufthansa AG
E.ON AG (Chairman)
IKB Deutsche Industriebank AG (Chairman)
Münchener Rückversicherungs-Gesellschaft AG
Henkel KGaA

Professor Dr. Herbert Henzler - until May 10, 2006 -

München, Vice Chairman Advisory Council der Credit Suisse Group, Zürich

SMS GmbH
FC Bayern München AG

Josef Hess * - until May 10, 2006 -

Vilshofen, Warehousekeeper and Deputy Chairman of the Central Works Council (HOCHTIEF Construction AG)

Dipl.-Ing. Gerhard Hilke *

R�dermark-Urberach, Director and Managerial Employee,
HOCHTIEF Construction AG

Dr. jur. Dietmar Kuhnt

Essen, Former Chairman of the Executive Board of RWE AG, Essen

Allianz Versicherungs-AG
BDO Deutsche Warentreuhand AG
Dresdner Bank AG
GEA Group AG
Hapag-Lloyd AG
RWE AG (until 13.04.2006 )
TUI AG
COMSTAR - United Telesystems - Moscow

Sergio Marchionne - from May 10, 2006 -

Turin, CEO Fiat S.p.A., Turin

CNH Global N.V. (Chairman)
European Automobile Manufacturers Association (ACEA) (Chairman)
Serono SA
SGS SA (Chairman)

Udo Paech *

Berlin, Member of the Works Council, HOCHTIEF Construction AG, Northeast Division

Gerrit Pennings * - from May 10, 2006 -

Kirchheim, Works Council Chairman, HOCHTIEF Facility Management GmbH, South Division

Gerd Peskes - from May 10, 2006 -

Düsseldorf, Auditor

apetito AG
ARAG AG (Chairman)
ARAG Allgemeine Rechtsschutz Versicherungs-AG (Chairman)
Claas KGaA
Custodia Holding AG
Nymphenburg Immobilien AG
Semper idem.Underberg AG
Clair Finanz Holding AG
Mövenpick Holding AG
Mövenpick Hotels & Resorts Management AG
MPW Mövenpick Wein AG
RHI AG
Treibacher Industrie AG
Underberg AG
von Roll Holding AG
Zwack Unicum Rt.

Professor Dr. jur. Dr.-Ing. E. h. Heinrich v. Pierer

Erlangen, Chairman of the Supervisory Board of Siemens AG, Berlin & Munich

Deutsche Bank AG
Münchener Rückversicherungs-Gesellschaft AG
Siemens AG (Chairman)
ThyssenKrupp AG
Volkswagen AG

Professor Dr. rer. nat. Wilhelm Simson - from May 10, 2006 -

Munich, former Chairman of the Board of Management, E.ON Düsseldorf

E.ON AG
Frankfurter Allgemeine Zeitung GmbH
Merck KGaA (Chairman)
E. Merck OHG
Freudenberg & Co.
Jungbunzlauer Holding AG

* Supervisory Board member representing employees
a) Membership in other supervisory boards prescribed by law (as of December 31, 2006)
b) Membership in comparable domestic and international corporate governing bodies (as of December 31, 2006)