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WESCO International, Inc. to Announce First Quarter 2011 Earnings on April 21, 2011; Conference Call and Live Webcast Scheduled for 11:00 A.M. ET

(Logo: http://photos.prnewswire.com/prnh/20030508/WCCLOGO )

The call will be available via conference call as well as a live audio webcast that can be accessed by clicking on the microphone icon on WESCO's home page at the www.wesco.com website. The call replay will be available on the WESCO website through midnight, Thursday, April 28, 2011.

Dial in for the call is as follows:

Conference telephone number:

Participant Dial In: 800-860-2442
International Dial In: +1 412-858-4600
Confirmation Code: Ask for the "WESCO" conference call

Replay: 877-344-7529
International Replay: +1 412-317-0088
Replay available from 1:00 PM ET April 21, 2011 thru midnight ET April 28, 2011.
Confirmation Code: 447178

WESCO International, Inc. (NYSE: WCC), a publicly traded Fortune 500 company headquartered in Pittsburgh, Pennsylvania, is a leading provider of electrical, industrial, and communications maintenance, repair and operating ("MRO") and original equipment manufacturers ("OEM") products, construction materials, and advanced supply chain management and logistics services. 2010 annual sales were approximately $5.1 billion. The Company employs approximately 6,800 people, maintains relationships with over 17,000 suppliers, and serves over 100,000 customers worldwide. Customers include industrial and commercial businesses, contractors, governmental agencies, institutions, telecommunications providers and utilities. WESCO operates seven fully automated distribution centers and over 400 full-service branches in North America and international markets, providing a local presence for customers and a global network to serve multi-location businesses and multi-national corporations.

The matters discussed herein may contain forward-looking statements that are subject to certain risks and uncertainties that could cause actual results to differ materially from expectations. Certain of these risks are set forth in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2010, as well as the Company's other reports filed with the Securities and Exchange Commission.

http://www.wesco.com

SOURCE WESCO International, Inc.