Officers and Directors

Roy W. Haley¹
Chairman and Chief Executive Officer, WESCO

Michael J. Cheshire^1,2
Chairman and Chief Executive Officer, Gerber Scientific, Inc.

James L. Singleton^1,3
Vice Chairman, The Cypress Group

James A. Stern^1,3
Chairman, The Cypress Group

Robert J. Tarr, Jr.^2,3
Chairman, Chief Executive Officer and President, HomeRuns.com, Inc.

Anthony D. Tutrone³
Managing Director, The Cypress Group

Kenneth L. Way³
Chairman and Chief Executive Officer, Lear Corporation

1) Executive Committee
2) Audit Committee
3) Compensation Committee


EXECUTIVE OFFICERS

Roy W. Haley
Chairman and Chief Executive Officer

William M. Goodwin
Vice President, Operations

James H. Mehta
Vice President, Business Development

Robert B. Rosenbaum
Vice President, Operations

Patrick M. Swed
Vice President, Operations

Donald H. Thimjon
Vice President, Operations

Ronald P. Van, Jr.
Vice President, Operations

Stephen A. Van Oss
Vice President, Chief Financial Officer

Daniel A. Brailer
Treasurer and Corporate Secretary


CORPORATE HEADQUARTERS

Commerce Court, Suite 700
Four Station Square
Pittsburgh, PA 15219
Phone: 412-454-2200
www.wescodist.com


INVESTOR RELATIONS

For questions regarding WESCO, contact Daniel A. Brailer, Treasurer, at dbrailer@wescodist.com. A copy of the Company’s Annual Report on Form 10-K or other financial information may be requested through our web site (www.wescodist.com) or by contacting Investor Relations.


COMMON STOCK

WESCO International, Inc. is listed on the New York Stock Exchange under the ticker symbol WCC.


ANNUAL MEETING

The Annual Meeting of shareholders will be held on Tuesday, May 23, 2001, at 2:00 p.m., E.S.T., at the Sheraton Station Square Hotel, Pittsburgh, PA.


TRANSFER AGENT

ChaseMellon Shareholder Services, L.L.C.
85 Challenger Road
Overpeck Centre
Ridgefield Park, NJ 07660
www.chasemellon.com
Phone: 1-800-756-3353
Outside the U.S.: 1-201-329-8660
The hearing disabled can access TDD service at: 1- 800-231-5469 (within the U.S.) or 1-201-329-8354.

INDEPENDENT PUBLIC ACCOUNTANTS

PricewaterhouseCoopers LLP
Pittsburgh, PA