Chicago Bridge & Iron Co. N.V.

PHILIP K. ASHERMAN has been President and Chief Executive Officer of CB&I since 2006 and a Managing Director since 2004. He joined CB&I in 2001 as a senior executive and was promoted to Executive Vice President that same year, reporting directly to the Chairman and CEO. Prior to joining CB&I, Mr. Asherman served as Senior Vice President of Fluor Global Services and held other executive positions with Fluor Daniel, Inc. operating subsidiaries, including President of its mining and minerals operating group and President of an industrial operating group. He previously held a number of regional executive positions in Europe, South America and Asia.

DANIEL M. McCARTHY serves as President, Lummus Technology, a position he has held since December 2008. He previously served as Executive Vice President - Lummus Technology, a position he has held since joining CB&I as part of the Lummus acquisition in 2007. Prior to that, he was an Executive Vice President of Lummus. He has held various management positions within the technology businesses of Lummus since its inception in 1987, assuming senior management responsibility for the business in 2004 and for the Lummus Houston EPC Execution Center in 2006.

RONALD E. BLUM assumed the role of President, CB&I Steel Plate Structures in December 2008. Previously, he served as Executive Vice President — Global Business Development since 2006 and as Vice President — Global LNG Sales from 2004 to 2006. Prior to that time, he held a series of positions with increasing responsibility at CB&I and PDM Engineered Construction.

BETH A. BAILEY was promoted to Executive Vice President and Chief Administration Officer in December 2008, with corporate responsibility for all Information Technology, Facilities and Human Resources. Ms. Bailey joined CB&I in 1972, serving in positions of increasing responsibility most recently as Executive Vice President and Chief Information Officer.

DAVID A. DELMAN has served as Executive Vice President and Chief Legal Officer, and Secretary for CB&I’s Supervisory Board of Directors since joining CB&I in 2007. Previously, he was a partner in the international law firm of Pepe & Hazard LLC, specializing in engineering and construction industry issues. From 1992 to 2000, Mr. Delman worked for Fluor Corporation, serving as associate general counsel from 1996.

LASSE PETTERSON joined CB&I in February 2009. Previously, Mr. Petterson was CEO of Gearbulk, the world’s largest operator of gantry craned vessels and served from 2002 to 2006 as President and Chief Operating Officer of AMEC Inc. USA, a project management engineering and construction company. From 1980 to 2002, he worked in various international executive and operations assignments for Aker Kvaerner, serving as President of both the Oil & Gas division and the Maritime division.

RONALD A. BALLSCHMIEDE has served as Executive Vice President and Chief Financial Officer since 2006. Prior to joining CB&I, he was a partner with Deloitte & Touche LLP since 2002. Previously, he worked for Arthur Andersen LLP from 1977 to 2002, becoming a partner in 1989 where he led the financial statements audits for a number of major manufacturing and construction companies.

Timothy J. Wiggins, 49, executive vice president and chief financial officer since 2003. Executive vice president and chief financial officer at Chicago Bridge & Iron Company, N.V. 1996 2001; various senior financial and operating management positions at Fruehauf Trailer Corporation and Autodie Corporation 1988 1996. Certified Public Accountant; B.S., Michigan State University.

WESTLEY S. STOCKTON has held the position of Vice President, Corporate Controller and Chief Accounting Officer since June 2008, previously serving as Vice President — Financial Operations. Mr. Stockton, a Certified Public Accountant, has worked for CB&I in various financial and M&A positions since 2002. Prior to joining CB&I, he worked for both PriceWaterhouseCoopers and Arthur Andersen in audit-related roles.

EDGAR C. RAY has served as Executive Vice President — Corporate Planning since 2007. He joined CB&I in 2003, serving as Senior Vice President — Global Marketing until 2007. Prior to joining CB&I, Mr. Ray was Executive Director of Strategy and Marketing for Fluor Corporation.

JOHN W. REDMON assumed the role of President, CB&I Lummus, the company’s EPC business, in December 2008. He served as Executive Vice President - Operations from 2006 and previously, led CB&I’s Risk Management group overseeing CB&I’s Project Controls, Procurement, Estimating, and Health, Safety, and Environment groups. He served as Executive Vice President of BE&K, Inc. from 1998 to 2006 and Chief Operating Officer of that company from 1999 to 2006. Mr. Redmon began working for Brown & Root, Inc. in 1968 where he served in various positions of increasing responsibility, culminating in the position of Executive Vice President and Chief Operating Officer.

LUCIANO REYES has served as Vice President and Treasurer since February 2006 and previously held positions of increasing responsibility in CB&I’s Treasury Department since joining the company in 1998. Prior to joining CB&I, Mr. Reyes held financial positions with USG and with several financial institutions.

JERRY H. BALLENGEE has served as non-executive Chairman since 2006 and as a Supervisory Director of the Company since 1997. He is Chairman of the Strategic Initiatives Committee and is a member of the Corporate Governance Committee and Nominating Committee. Mr. Ballengee served as Chairman of the Board of Morris Material Handling Company from 2001 to 2006. He served as President and Chief Operating Officer of Union Camp Corporation from 1994 to 1999, and as a member of the Board of Directors of that company from 1988 until 1999. Prior, he held various other executive positions.

W. CRAIG KISSEL worked for American Standard from 1980 until his retirement in 2008, most recently as President of Trane Commercial Systems, a leading supplier of air conditioning and heat systems. From 1998 to 2003, he was President of American Standard’s Vehicle Control Systems business in Brussels, Belgium. Prior, he held various management positions at Trane, including Executive Vice President and Group Executive of Trane’s North American Unitary Products business. From 2001 to 2008, Mr. Kissel served as Chairman of American Standard’s Corporate Ethics and Integrity Council responsible for developing the company’s ethical business standards.

GARY L. NEALE has served as a Supervisory Director since 1997 and is Chairman of the Organization and Compensation Committee and a member of the Corporate Governance Committee. Mr. Neale served as Chairman of the Board of NiSource, Inc. from 1993 to 2007 and as Chief Executive Officer from 1993 to 2005. He has also served as Chairman of the Board and a director of Northern Indiana Public Service Company since 1989, and as a director of Modine Manufacturing Company (heat transfer products) since 1977.

J. CHARLES JENNETT has served as a Supervisory Director of the Company since 1997. He is Chairman of the Supervisory Board’s Nominating Committee, and a member of the Organization and Compensation Committee and Corporate Governance Committee. Dr. Jennett served as President of Texas A&M International University from 1996 to 2001. Upon his retirement in 2001, he was bestowed the title of President Emeritus. From 1992 to 1996, he was Provost and Vice President of Academic Affairs at Clemson University. Dr. Jennett currently serves as a private engineering consultant.

MARSHA C. WILLIAMS has served as a Supervisory Director of the Company since 1997. She is a member of the Audit Committee, Corporate Governance Committee and the Organization and Compensation Committee. Ms. Williams currently serves as Senior Vice President and Chief Financial Officer of Orbitz Worldwide, a position she has held since 2007. From 2002 to 2007, she served as Executive Vice President and Chief Financial Officer of Equity Office Properties Trust, a public real estate investment trust. She served as Chief Administrative Officer of Crate & Barrel from 1998 to 2002, and as Treasurer of Amoco Corporation from 1993 to 1998. Ms. Williams is a director of Davis Funds, Modine Manufacturing Company, Inc. and Fifth Third Bancorp.

MICHAEL L. UNDERWOOD has served as a Supervisory Director since 2007 and is Chairman of the Audit Committee and a member of the Organization and Compensation Committee and the Corporate Governance Committee. Mr. Underwood worked the majority of his 35-year career in public accounting at Arthur Andersen LLP, where he was a partner. He moved to Deloitte & Touche LLP as a director in 2002, retiring in 2003. He is currently a director and Chairman of the Audit Committee of Dresser-Rand Group.