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   &lt;div align="left" style="font-size: 10pt; margin-top: 12pt"&gt;&lt;b&gt;6. EQUITY INVESTMENT&lt;/b&gt;
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   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;During the first quarter of 2008, WESCO and Deutsch Engineered Connecting Devices, Inc.
   (&amp;#8220;Deutsch&amp;#8221;) completed a transaction with respect to WESCO&amp;#8217;s LADD operations, which resulted in a
   joint venture in which Deutsch owned a 60% interest and WESCO owned a 40% interest. WESCO
   accounted for its investment in the joint venture using the equity method of accounting.
   Accordingly, earnings from the joint venture were recorded as other income in the consolidated
   statement of income. Deutsch was entitled, but not obliged, to acquire the remaining 40% after
   January&amp;#160;1, 2010. Deutsch paid to WESCO aggregate consideration of approximately $75.0&amp;#160;million,
   consisting of $60.0&amp;#160;million in cash plus a $15.0&amp;#160;million promissory note for its 60% interest in
   the joint venture.
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   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;On January&amp;#160;15, 2010, WESCO received $1.8&amp;#160;million in accrued interest related to the promissory
   note for the period from January&amp;#160;2, 2008 to January&amp;#160;2, 2010. In addition, Deutsch and WESCO
   entered into an amended promissory note agreement. The amendment extended the maturity date for
   the payment of principal and interest to the earlier of (a)&amp;#160;the closing date of Deutsch&amp;#8217;s option to
   acquire the remaining 40% joint venture interest or (b)&amp;#160;the maturity date of Deutsch&amp;#8217;s credit
   facility or mezzanine financing facility. Interest accrued at a rate of 8.5% compounded annually.
   Management believed this rate was commensurate with a market rate of interest; therefore, no
   reserve or allowance was recorded against the promissory note.
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   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;On April&amp;#160;30, 2010, Deutsch notified WESCO it would exercise its option to purchase the
   remaining 40% of the LADD joint venture. The option price for Deutsch to acquire the remaining 40%
   of the joint venture was determined based upon a multiple of trailing earnings, with a minimum
   purchase price of $40.0&amp;#160;million and maximum purchase price of $50.0&amp;#160;million. The investment in the
   LADD joint venture at March&amp;#160;31, 2010 was $43.4&amp;#160;million, and the estimated option exercise price was
   $40.0&amp;#160;million. As a result, WESCO recorded a pre-tax impairment loss of $3.4&amp;#160;million to selling,
   general and administrative expenses during the first quarter of 2010. On June&amp;#160;7, 2010, WESCO
   completed the sale of its 40% interest in the LADD joint venture and recorded an additional
   impairment charge of $0.4&amp;#160;million to selling, general and administrative expenses. WESCO received
   $40.0&amp;#160;million for its 40% interest plus $15.0&amp;#160;million for the outstanding promissory note and $0.5
   million for accrued interest.
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      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher AICPA
 -Name Accounting Principles Board Opinion (APB)
 -Number 18
 -Paragraph 20

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