JOINT FILING AGREEMENT
This JOINT FILING AGREEMENT is made and entered into by and among Iridian Asset
Management LLC, The Governor and Company of the Bank of Ireland, IBI
Interfunding, BancIreland/First Financial, Inc., and BIAM (US) Inc.
The parties to this Agreement hereby agree to prepare jointly and file timely
(or otherwise deliver as appropriate) all filings on Schedule 13D and Schedule
13G (the "Filings") required to be filed by them pursunat to Section 13(d) or
13(g) under the Securities Exchange Act of 1934, as amended, with respect to
their respective ownership of any securities of WESCO International, Inc. that
are requireed to be reported on any Filings. Each party to this Agreement
further agrees and covenants to the other parties that it will fully cooperate
with such other parties in the preparation and timely filing (and other
delivery) of all such Filings.
Date: February 4, 2008
IRIDIAN ASSET MANAGEMENT LLC
By: /s/ Xxxxxxx X. Xxxxxxx
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Xxxxxxx X. Xxxxxxx
Executive Vice President
THE GOVERNOR AND COMPANY OF THE BANK OF IRELAND
By: /s/ Xxxx Xxxxxxxx
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Xxxx Xxxxxxxx
Group Secretary
BIAM HOLDINGS
By: /s/ Xxxx Xxxxxxxx
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Xxxx Xxxxxxxx
Xxxxxxxx
XXXXXXXXXXX (XX) HOLDINGS, INC.
By: /s/ Xxxxxxx X. Xxxxxxx
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Xxxxxxx X. Xxxxxxx
Agent
BIAM (US) INC.
By: /s/ Xxxxxxx X. Xxxxxxx
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Xxxxxxx X. Xxxxxxx
Agent
