Certificate for Electronic Filin,

Thereby certify that the attached Notice of Appearance is a true and correct copy
of the original documents that were filed today, February 2, 2005, by hand delivery with
the Secretary of the Commission, Room H-159, Federal Trade Commission, 600
Pennsylvania Avenue, N.W., Washington, D.C. 20580.

Bo



CERTIFICATE OF SERVICE

I, Ivy A. Johnson, hereby certify that on February 1, 2005, a true and
correct copy of the foregoing Notice of Appearance was served on the following persons
by hand delivery:

Donald S. Clark Rhett R. Krulla, Esq.
Secretary Assistant Director

Federal Trade Commission Bureau of Competition

Room H-159 Federal Trade Commission
600 Pennsylvania Avenue, N.W. Room NJ-6120

Washington, D.C. 20580 601 New Jersey Avenue, N.W.

Washington, D.C. 20580
Steven L. Wilensky, Esq.
Federal Trade Commission
601 New Jersey Avenue, N.W.
Room NJ-6120

Washington, D.C. 20580 4 LL



FEDERAL TRADE COMMISSION
WASHINGTON, D.C, 20580

NOTICE OF APPEARANCE

CASE NAME In the Matter of Chicago
Bridge & Iron Company N.V., Chicago

Bridge & Iron Company, and Pitt-Des

FILE/DOCKET NUMBER

Docket Wo. 9300

Moines, Inc.

> Pursuant to Section 4.1 of the
the appearance of

Commission's Rule of Practice, enter in the above proceeding

£] counsel or representative for the respondent (Complete items 1, 2, 4, and 5 below)
1 counsel Supporting the complaint (Complete items 1, 3, 4, and 5 below)

14. COUNSEL OR REPRESENTATIVE.

2. RESPONDENTS

" inalode name, address end telephone of each
Clifford H. Aronson

Skadden, Arps, Slate, Meagher’
& Flom LLP

Four Times Square

New York, New York 10036

Tel: 212-735-2644

Charles W. Schwartz

Skadden, Arps, Slate, Meagher
& Flom LLP

1600.'Smith Street, Suite 4400

Houston, Texas 77002

Tel:. 713-655-5160

Counsel for Chicago Bridge & Iron
Company N.V. and Chicago Bridgé

& Iron Company

Include address and telephone numbers of all persons, partnerships,
corporations, or associations

Chicago Bridge & Iron Company N.V.
Polarisavenue 31, 2132 JH Hoofddorp
The Netherlands

Tel: 011-31-23-568—5660

Chicago Bridge & Iron Company
One CB&I Plaza

2103° Research Forest Drive
The Woodlands, Texas 77380
Tel: 832-513-1600

iVdi Wua03S

*IIKY 2- €34S0

2

SNISSIIONd INIHNIOG
¢:

3,. ASSOCIATE/ASSISTANT DIRECTOR

» SIGNATUI Vig. SENIOR On

5. DATE SIGNED
LI] Hf oS

caer this KA to: H-159

Federal Trade Commission
600 Pennsylvania Ave. NW
Washington, D.C. 20580

FTC Form 232 (rev. 3/89)


UNITED STATES OF AMERICA
BEFORE THE FEDERAL TRADE COMMISSION

In the Matter of

CHICAGO BRIDGE & IRON COMPANY N.V.

a foreign corporation, Docket No. 9300

CHICAGO BRIDGE & IRON COMPANY

a corporation, PUBLIC

PITT-DES MOINES, INC.,
a corporation.

www Se SS SH HS OE SL

DECLARATION OF CLIFFORD H. ARONSON
I, Clifford H. Aronson, declare:

1. Iam an attorney with the law firm of Skadden, Arps, Slate, Meagher & Flom LLP,
counsel for Respondents Chicago Bridge & Iron Company N.V. and Chicago
Bridge & Iron Company. I make this declaration pursuant to Rule 4.1(d) of the
Federal Trade Commission's Rules of Practice.

2. Iamamember of the Bar of the State of New York @ N/A ) and am
admitted to practice before the Court of Appeals for the State of New York and
the United States District Court for the Southern District of New York. I further
attest that I am in good standing within the legal profession.

I declare under penalty of perjury that the foregoing is true and correct.

Colff if |

Clifford’. Aronson

Executed: February 1, 2005.



UNITED STATES OF AMERICA
BEFORE THE FEDERAL TRADE COMMISSION

In the Matter of

CHICAGO BRIDGE & IRON COMPANY N.V.

a foreign corporation, Docket No. 9300
CHICAGO BRIDGE & IRON COMPANY
a corporation, PUBLIC

PITT-DES MOINES, INC.,
a corporation.

www SS SS SDSL

DECLARATION OF CHARLES W. SCHWARTZ
I, Charles W. Schwartz, declare:

1. Iam an attorney with the law firm of Skadden, Arps, Slate, Meagher & Flom LLP,
counsel for Respondents Chicago Bridge & Iron Company N.V. and Chicago
Bridge & Iron Company. I make this declaration pursuant to Rule 4.1(d) of the
Federal Trade Commission's Rules of Practice.

2. [am amember of the Bar of the State of Texas (# 17 Wol309 and am admitted to
practice before the United States District Court for the Northern, Western,
Southern and Eastern Districts of Texas, and the United States Circuit Court of
Appeals for the Fifth Circuit. I further attest that I am in good standing within the
legal profession.

I declare under penalty of perjury that the foregoing is true and correct.

Executed: February 1, 2005.

Chas. S< hwatdd—

Charles W. Schwartz