Board of Directors

MOGENS C. BAY, Chairman
Valmont Industries, Inc.

K.R. DEN DAAS, Retired Executive Vice President
Philips Lighting B.V. of the Netherlands
Audit Committee
Governance & Nominating Committee

Ritu Favre, Senior Vice President & GM
National Instruments Corporation

DR. THEODOR W. FREYE, Retired CEO of CLAAS KgaA
Governance & Nominating Committee

STEPHEN G. KANIEWSKI, President & Chief Executive Officer
Valmont Industries, Inc.

RICHARD LANOHA, President & Chief Operating Officer
Kiewit Corporation
Human Resources Committee

JAMES B. MILLIKEN, Chancellor
University of Texas System
Chairman, Governance & Nominating Committee

DANIEL P. NEARY, Former Chairman & Retired CEO
Mutual of Omaha
Audit Committee
Chairman, Human Resources Committee

CATHERINE J. PAGLIA, Enterprise Asset Management
Audit Committee
Human Resources Committee

CLARK T. RANDT, JR., Former U.S. Ambassador
to the People's Republic of China
Governance & Nominating Committee

Joan Robinson-Berry , Retired SVP & Chief Engineer
Boeing Global Services

WALTER SCOTT, JR., Retired Chairman
Peter Kiewit Sons', Inc.
Chairman, Audit Committee