Document:

EX-10.1

 

EXHIBIT 10.1

NATIONAL INTERSTATE CORPORATION

MANAGEMENT BONUS PLAN

     1. Purpose. The purpose of this Management Bonus Plan (this “Plan”) is to provide financial
incentives to designated executives and other key managers of National Interstate Corporation and
its subsidiaries (the “Company”) related to the achievement of challenging financial and business
goals.

     2. Definitions. Terms in this Plan that have initial capital letters and that are not
otherwise defined in this Plan shall have the meanings given to such terms in Exhibit A.

     3. Plan Administration. The Compensation Committee of the Board (the “Committee”) shall be
responsible for administration of the Plan. The Committee, by majority action, is authorized to
interpret the Plan, to prescribe, amend, and rescind regulations relating to the Plan, to provide
for conditions and assurances deemed necessary or advisable to protect the interests of the
Company, and to make all other determinations necessary or advisable for the administration of the
Plan, but only to the extent not contrary to the express provisions of the Plan. Determinations,
interpretations, or other actions made or taken by the Committee pursuant to the provisions of the
Plan shall be final, binding and conclusive for all purposes and upon all Participants. No member
of the Committee shall be liable for any such action or determination made in good faith. The
Committee may delegate to the chief executive officer or other officers of the Company, subject to
such terms as the Committee shall determine, authority to perform certain functions, including
administrative functions, except that the Committee shall retain exclusive authority to determine
matters relating to the chief executive officer. In the event of such delegation, all references
to the Committee in this Plan shall be deemed references to such officers as it relates to those
aspects of the Plan that have been delegated.

     4. Eligibility. The chief executive officer will select and the Committee shall approve which
Employees will be eligible to participate in the Plan for any given Performance Period. Eligible
Participants shall be notified in writing of such designation. An Employee who is a Participant for
a given Performance Period is neither guaranteed nor assured of being selected for participation in
any subsequent Performance Period.

     5. Bonus Pool and Target Incentive Award. Following the beginning of each Performance Period,
the Committee shall establish (i) a formula for determining the potential Bonus Pool for such
Performance Period, and (ii) a Target Incentive Award for such Performance Period for each
Participant. When establishing the Target Incentive Awards for participants other than the chief
executive officer, the Committee shall consider the recommendations of the chief executive officer.
The chief executive officer will be authorized to establish (subject, in the case of executive
officers, to the Committee’s approval) Target Incentive Awards for newly hired or newly promoted
Employees, which awards may be based on performance during less than the full Performance Period
and may be pro rated in the discretion of the Committee.

 

 

     6. Determination of Awards. As soon as administratively practicable following the end of each
Performance Period, the Committee shall determine the total Bonus Pool available for allocation as
Awards for such Performance Period and shall determine the extent, if any, that the Target
Incentive Award for each Participant has been attained, based on the Committee’s assessment (after
considering the recommendations of the chief executive officer for all Participants other than the
chief executive officer) of the Company’s and the Participant’s performance to objectives during
such Performance Period. The amount of the Award payable under the Plan to any Participant shall
then be determined by the Committee based on a percentage of the available Bonus Pool;
provided, however, that in no event shall the aggregate of all Awards to be made
hereunder to all Participants for a Performance Period exceed the amount of the Bonus Pool for such
Performance Period. The Committee may, in its sole discretion, increase or decrease the amount of
any Award otherwise payable to any Participant to reflect such Participant’s individual performance
or such other factors as the Committee deems relevant, or in recognition of changed or special
circumstances.

     7. Payment of Awards. An Award to a Participant for a particular Performance Period shall be
paid by the Company in cash in three installments (without interest) as follows: (i) Fifty percent
(50%) of the Award for such Performance Period shall be paid within 75 days after the end of such
Performance Period; (ii) Thirty five percent (35%) of the Award for such Performance Period shall
be paid within 75 days after the first anniversary of the end of such Performance Period; and (iii)
fifteen percent (15%) of the Award for such Performance Period shall be paid within 75 days after
the second anniversary of the end of such Performance Period. For two years subsequent to such
date (i.e. until the fourth anniversary of the end of such Performance Period), the Committee shall
consider any favorable development for such Performance Period and may, but shall not be obligated
to, make a payment of an additional cash amount to any Participant for that Performance Period.
Unless otherwise determined by the Committee, a Participant must be Actively Employed by the
Company on the date his Award (or any portion thereof) is to be paid in order to be entitled to
payment of any such Award (or any portion thereof).

     8. Change in Control. Notwithstanding anything contained in this Plan to the contrary, in the
event of a Change in Control of National Interstate Corporation: (a) if prior to the first
anniversary of the Change in Control the Company terminates a Participant’s employment other than
for Cause or a Participant terminates his or her employment for Good Reason, then the Company shall
pay to such Participant a lump sum cash distribution of his or her unpaid Awards within 10 days
following the date of his or her termination of employment; and (b) if a Change in Control occurs
during a Performance Period (and after the applicable Target Incentive Awards have been established
for such period), and prior to the end of such Performance Period the Company terminates a
Participant’s employment other than for Cause, or a Participant terminates his or her employment
for Good Reason, then the Company shall pay to such Participant a lump sum cash distribution of his
or her Target Incentive Award for such Performance Period, prorated for the period Actively
Employed with the Company during such Performance Period, within 10 days following the date of his
or her termination of employment.

     9. Source of Payment; Transferability; Rights of Employer. Each Award that may become payable
under the Plan shall be paid solely from the general assets of the Company.

 

 

Nothing in this Plan shall be construed to create a trust or to establish or evidence any Participant’s claim of any
right to payment of an Award other than as an unsecured general creditor with respect to any
payment to which he or she may be entitled. No right or benefit under this Plan will be subject to
anticipation, alienation, sale, assignment, pledge, encumbrance, or charge, and any attempt to
anticipate, alienate, sell, assign, pledge, encumber, or charge such right or benefit will be void.
No such right or benefit will in any manner be liable for or subject to the debts, liabilities, or
torts of a Participant. Nothing in the Plan shall interfere with or limit in any way the right of
the Company to terminate any Participant’s employment at any time, with or without cause.

     10. Compliance with Section 409A of the Code. To the extent applicable, it is intended that
the Plan comply with the provisions of Section 409A of the Internal Revenue Code of 1986, as
amended (the “Code”), so as to prevent the inclusion in gross income of any amounts payable
hereunder in a taxable year that is prior to the taxable year or years in which such amounts would
otherwise actually be distributed or made available to Participants. This Plan shall be construed,
administered, and governed in a manner that effects such intent, and the Committee shall not take
any action that would be inconsistent with such intent. Any provisions that would cause any amount
payable under the Plan to be includible in the gross income of any Participant under Section
409A(a)(1) of the Code shall have no force and effect unless and until amended to cause such amount
to not be so includible (which amendment may be retroactive to the extent permitted by Section 409A
of the Code without the consent of the Participants).

     11. Amendment or Termination. The Board may from time to time amend the Plan in any respect
or terminate the Plan in whole or in part. Upon termination of the Plan, all earned but unpaid
Awards shall continue to be payable on the dates on which the Participants would otherwise receive
payments hereunder without regard to the termination of the Plan; provided,
however, that to the extent permitted by Section 409A of the Code, the Board may direct
that the Participants who are employed by the Company as of the effective date of such termination
receive an immediate lump sum payment equal to the amount of their earned but unpaid Awards.

     12. Miscellaneous. All obligations of the Company under the Plan shall be binding on any
successor to the Company, whether the existence of such successor is the result of a direct or
indirect purchase, merger, consolidation, or otherwise, of all or substantially all of the business
or assets of the Company, and such successor, along with its subsidiaries, shall thereafter be
deemed the “Company” for all purposes of this Plan. The Plan and all Awards shall be construed in
accordance with and governed by the laws of the State of Ohio, but without regard to its conflict
of law provisions. The Company shall have the right to deduct from all payments made to any person
under the Plan any federal, state, local, foreign or other taxes which, in the opinion of the
Company are required to be withheld with respect to such payments.

 

 

EXHIBIT A

DEFINITIONS

“Actively Employed” has the meaning given such term in the Company’s Employee Handbook.

“Award” means a cash award granted under the Plan to a Participant by the Committee pursuant to
such terms, conditions, restrictions and/or limitations, if any, as the Committee may establish.

“Board” means the Board of Directors of National Interstate Corporation.

“Bonus Pool” means, for each Performance Period, a bonus pool established by the Committee upon
recommendation of the chief executive officer with respect to the Company’s accident underwriting
year or years, consisting of that portion of the underwriting profit for such year or years, as
designated by the Committee.

“Cause” shall mean (i) the material failure by the Participant to properly perform his duties for
the Company (except due to physical or mental impairment); (ii) a conviction, guilty plea or plea
of nolo contendere of the Participant for any crime involving moral turpitude or for any felony; or
(iii) a breach by the Participant of his fiduciary duties of loyalty or care to the Company or a
material violation of any of the corporate governance and ethics guidelines, conflict of interests
policies or code of conduct of the Company.

“Change in Control” has the meaning given such term in the Company’s Long Term Incentive Plan.

“Employee” means any person employed by the Company, whether such Employee is employed at the time
the Plan is adopted or becomes employed subsequent to the adoption of the Plan.

“Good Reason” shall mean (i) a material reduction in the Participant’s annual base salary as in
effect on the Change in Control; (ii) a material reduction, without the Participant’s written
consent, of the Participant’s authority, duties, or responsibilities from those in effect
immediately prior to the Change in Control; or (iii) a material change, without the Participant’s
written consent, in the geographic location of Participant’s principal place of employment as in
effect immediately prior to the Change in Control.

“Participant” means, as to any Performance Period, any Employee confirmed by the Committee to be
eligible to participate in the Plan for that Performance Period, as provided herein.

“Performance Period” means the Company’s fiscal year.

“Target Incentive Award” means, as to any Performance Period, the target level of Award
opportunity, stated as a percentage of base salary, available to a Participant. The Target
Incentive Awards may differ from Performance Period to Performance Period and Participant to
Participant, as determined by the Committee. It is anticipated that an Award made under this Plan
will be stated in terms of a percentage of the available Bonus Pool and will range from 0% to 200%
of the Target Incentive Award.EX-10.1

 

Exhibit 10.1

 

 

THIRD AMENDED AND RESTATED CREDIT AGREEMENT

Dated as of November 1, 2006

among

WESCO DISTRIBUTION, INC., WESCO EQUITY CORPORATION,

HERNING ENTERPRISES, INC., WESCO NEVADA, LTD.,

CARLTON-BATES COMPANY and CARLTON-BATES COMPANY OF TEXAS, LP

as US Borrowers,

WESCO DISTRIBUTION CANADA LP and

any other Canadian Borrowers signatory hereto from time to time,

as Canadian Borrowers,

THE OTHER CREDIT PARTIES SIGNATORY HERETO,

as Credit Parties,

THE LENDERS SIGNATORY HERETO

FROM TIME TO TIME,

as Lenders,

GENERAL ELECTRIC CAPITAL CORPORATION,

as Agent and US Lender,

GECC CAPITAL MARKETS GROUP, INC.,

as Lead Arranger,

GE CANADA FINANCE HOLDING COMPANY,

as Canadian Agent and a Canadian Lender

 

 

 

 

TABLE OF CONTENTS

	 	 	 	 	 
	 	 	Page	 
	1. AMOUNT AND TERMS OF CREDIT
	 	 	3	 
	 
	 	 	 	 
	1.1 Credit Facilities
	 	 	3	 
	1.2 Letters of Credit
	 	 	8	 
	1.3 Prepayments
	 	 	8	 
	1.4 Use of Proceeds
	 	 	11	 
	1.5 Interest and Applicable Margins
	 	 	11	 
	1.6 Eligible Accounts
	 	 	16	 
	1.7 Eligible Inventory
	 	 	19	 
	1.8 Cash Management Systems
	 	 	21	 
	1.9 Fees
	 	 	21	 
	1.10 Receipt of Payments
	 	 	22	 
	1.11 Application and Allocation of Payments
	 	 	22	 
	1.12 Loan Account and Accounting
	 	 	23	 
	1.13 Indemnity
	 	 	23	 
	1.14 Access
	 	 	25	 
	1.15 Taxes
	 	 	26	 
	1.16 Capital Adequacy; Increased Costs; Illegality
	 	 	27	 
	1.17 Single Loan
	 	 	28	 
	 
	 	 	 	 
	2. CONDITIONS PRECEDENT
	 	 	29	 
	 
	 	 	 	 
	2.1 Conditions to the Initial Loans
	 	 	29	 
	2.2 Further Conditions to Each Loan
	 	 	30	 
	 
	 	 	 	 
	3. REPRESENTATIONS AND WARRANTIES
	 	 	31	 
	 
	 	 	 	 
	3.1 Corporate Existence; Compliance with Law
	 	 	31	 
	3.2 Executive Offices, Collateral Locations, FEIN
	 	 	32	 
	3.3 Corporate Power, Authorization, Enforceable Obligations
	 	 	32	 
	3.4 Financial Statements and Projections
	 	 	32	 
	3.5 Material Adverse Effect
	 	 	34	 
	3.6 Ownership of Property; Liens
	 	 	34	 
	3.7 Labor Matters
	 	 	35	 
	3.8 Ventures, Subsidiaries and Affiliates; Outstanding Stock and Indebtedness
	 	 	35	 
	3.9 Government Regulation
	 	 	36	 
	3.10 Margin Regulations
	 	 	36	 
	3.11 Taxes
	 	 	36	 
	3.12 ERISA
	 	 	37	 
	3.13 No Litigation
	 	 	38	 
	3.14 Brokers
	 	 	38	 
	3.15 Intellectual Property
	 	 	38	 
	3.16 Full Disclosure
	 	 	39	 

i

 

	 	 	 	 	 
	 	 	Page	 
	3.17 Environmental Matters
	 	 	39	 
	3.18 Insurance
	 	 	40	 
	3.19 Deposit and Disbursement Accounts
	 	 	40	 
	3.20 Government Contracts
	 	 	40	 
	3.21 Customer and Trade Relations
	 	 	40	 
	3.22 Agreements and Other Documents
	 	 	40	 
	3.23 Solvency
	 	 	41	 
	3.24 Subordinated Debt
	 	 	41	 
	3.25 Rent
	 	 	41	 
	 
	 	 	 	 
	4. FINANCIAL STATEMENTS AND INFORMATION
	 	 	42	 
	 
	 	 	 	 
	4.1 Reports and Notices
	 	 	42	 
	4.2 Communication with Accountants
	 	 	42	 
	 
	 	 	 	 
	5. AFFIRMATIVE COVENANTS
	 	 	42	 
	 
	 	 	 	 
	5.1 Maintenance of Existence and Conduct of Business
	 	 	42	 
	5.2 Payment of Charges
	 	 	43	 
	5.3 Books and Records
	 	 	43	 
	5.4 Insurance; Damage to or Destruction of Collateral
	 	 	43	 
	5.5 Compliance with Laws
	 	 	45	 
	5.6 Supplemental Disclosure
	 	 	46	 
	5.7 Intellectual Property
	 	 	46	 
	5.8 Environmental Matters
	 	 	46	 
	5.9 Landlords’ Agreements, Mortgagee Agreements, Bailee Letters and Real Estate Purchases
	 	 	47	 
	5.10 Covenants Regarding Accounts
	 	 	48	 
	5.11 Canadian Pension and Benefit Plans
	 	 	48	 
	5.12 Foreign Subsidiaries’ Guaranties
	 	 	49	 
	5.13 Further Assurances
	 	 	49	 
	 
	 	 	 	 
	6. NEGATIVE COVENANTS
	 	 	50	 
	 
	 	 	 	 
	6.1 Mergers, Subsidiaries, Etc.
	 	 	50	 
	6.2 Investments; Loans and Advances
	 	 	56	 
	6.3 Indebtedness
	 	 	57	 
	6.4 Employee Loans and Affiliate Transactions
	 	 	63	 
	6.5 Capital Structure and Business
	 	 	63	 
	6.6 Guaranteed Indebtedness
	 	 	63	 
	6.7 Liens
	 	 	64	 
	6.8 Sale of Stock and Assets
	 	 	64	 
	6.9 ERISA
	 	 	65	 
	6.10 Financial Covenants
	 	 	65	 
	6.11 Hazardous Materials
	 	 	65	 
	6.12 Sale-Leasebacks
	 	 	65	 
	6.13 Cancellation of Indebtedness
	 	 	66	 
	6.14 Restricted Payments
	 	 	66	 
	6.15 Change of Corporate Name or Location; Change of Fiscal Year
	 	 	67	 

ii

 

	 	 	 	 	 
	 	 	Page	 
	6.16 No Impairment of Intercompany Transfers
	 	 	68	 
	6.17 No Speculative Transactions
	 	 	68	 
	6.18 Leases; Real Estate Purchases
	 	 	68	 
	6.19 Changes Relating to Subordinated Debt; Material Contracts
	 	 	68	 
	6.20 Holdings, WESCO Finance, WDC Holding, WESCO Canada, WESCO DC GP and GB WESCO
	 	 	69	 
	6.21 Negative Pledge
	 	 	70	 
	6.22 Non-Canadian Foreign Subsidiaries
	 	 	70	 
	6.23 CDW
	 	 	70	 
	 
	 	 	 	 
	7. TERM
	 	 	71	 
	 
	 	 	 	 
	7.1 Termination
	 	 	71	 
	7.2 Survival of Obligations Upon Termination of Financing Arrangements
	 	 	71	 
	 
	 	 	 	 
	8. EVENTS OF DEFAULT; RIGHTS AND REMEDIES
	 	 	71	 
	 
	 	 	 	 
	8.1 Events of Default
	 	 	71	 
	8.2 Remedies
	 	 	73	 
	8.3 Waivers by Credit Parties
	 	 	74	 
	 
	 	 	 	 
	9. ASSIGNMENT AND PARTICIPATIONS; APPOINTMENT OF AGENTS
	 	 	74	 
	 
	 	 	 	 
	9.1 Assignment and Participations
	 	 	74	 
	9.2 Appointment of Agents
	 	 	77	 
	9.3 Agents’ Reliance, Etc.
	 	 	79	 
	9.4 GE Capital, GE Capital Canada and Affiliates
	 	 	79	 
	9.5 Lender Credit Decision
	 	 	80	 
	9.6 Indemnification
	 	 	80	 
	9.7 Successor Agent
	 	 	81	 
	9.8 Setoff and Sharing of Payments
	 	 	82	 
	9.9 Advances; Payments; Non-Funding Lenders; Information; Actions in Concert
	 	 	83	 
	9.10 Syndication Agent and Documentation Agent
	 	 	85	 
	 
	 	 	 	 
	10. SUCCESSORS AND ASSIGNS
	 	 	85	 
	 
	 	 	 	 
	10.1 Successors and Assigns
	 	 	85	 
	 
	 	 	 	 
	11. MISCELLANEOUS
	 	 	85	 
	 
	 	 	 	 
	11.1 Complete Agreement; Modification of Agreement
	 	 	85	 
	11.2 Amendments and Waivers
	 	 	86	 
	11.3 Fees and Expenses
	 	 	87	 
	11.4 No Waiver
	 	 	89	 
	11.5 Remedies
	 	 	89	 
	11.6 Severability
	 	 	89	 
	11.7 Conflict of Terms
	 	 	89	 
	11.8 Confidentiality
	 	 	90	 
	11.9 GOVERNING LAW
	 	 	90	 

iii

 

	 	 	 	 	 
	 	 	Page	 
	11.10 Notices
	 	 	91	 
	11.11 Section Titles
	 	 	91	 
	11.12 Counterparts
	 	 	91	 
	11.13 WAIVER OF JURY TRIAL
	 	 	92	 
	11.14 Press Releases and Related Matters
	 	 	92	 
	11.15 Reinstatement
	 	 	92	 
	11.16 Advice of Counsel
	 	 	93	 
	11.17 No Strict Construction
	 	 	93	 
	11.18 Judgment Currency
	 	 	93	 
	11.19 Designated Senior Indebtedness
	 	 	94	 
	11.20 Amendment and Restatement
	 	 	94	 
	11.21 Patriot Act Notice
	 	 	94	 
	 
	 	 	 	 
	12. CROSS-GUARANTY
	 	 	94	 
	 
	 	 	 	 
	12.1 Cross-Guaranty
	 	 	94	 
	12.2 Waivers by Borrowers
	 	 	95	 
	12.3 Benefit of Guaranty
	 	 	96	 
	12.4 Waiver of Subrogation, Etc.
	 	 	96	 
	12.5 Election of Remedies
	 	 	96	 
	12.6 Limitation
	 	 	97	 
	12.7 Contribution with Respect to Guaranty Obligations
	 	 	97	 
	12.8 Liability Cumulative
	 	 	98	 
	 
	 	 	 	 
	13. LIENS AND LOAN PRIORITIES
	 	 	98	 
	 
	 	 	 	 
	13.1 Priorities
	 	 	98	 

iv

 

INDEX OF APPENDICES

	 	 	 	 	 
	Annex A (Recitals)

	 	-
	 	Definitions
	Annex B (Section 1.2)

	 	-
	 	Letters of Credit
	Annex C (Section 1.8)

	 	-
	 	Cash Management System
	Annex D (Section 2.1(a))

	 	-
	 	Closing Checklist
	Annex E (Section 4.1(a))

	 	-
	 	Financial Statements and Projections — Reporting
	Annex F (Section 4.1(b))

	 	-
	 	Collateral Reports
	Annex G (Section 6.10)

	 	-
	 	Financial Covenants
	Annex H (Section 9.9(a))

	 	-
	 	Lenders’ Wire Transfer Information
	Annex I (Section 11.10)

	 	-
	 	Notice Addresses
	Annex J (from Annex A-
	 	 	 	 
	Commitments definition)

	 	-
	 	Commitments as of Closing Date
	 
	 	 	 	 
	Exhibit 1.1(a)(i)

	 	-
	 	Form of Notice of Revolving Credit Advance
	Exhibit 1.1(a)(ii)

	 	-
	 	Form of Revolving Note
	Exhibit 1.1(b)(ii)

	 	-
	 	Form of Swing Line Note
	Exhibit 1.5(e)

	 	-
	 	Form of Notice of Conversion/Continuation
	Exhibit 4.1(b)

	 	-
	 	Form of Borrowing Base Certificate
	Exhibit 9.1(a)

	 	-
	 	Form of Assignment Agreement
	Exhibit A

	 	-
	 	Eligible Securitization Receivables
	Exhibit B-1

	 	-
	 	Application for Standby Letter of Credit
	Exhibit B-2

	 	-
	 	Application for Documentary Letter of Credit
	Exhibit B-3

	 	-
	 	Application and Agreement for Documentary
Letter of Credit
	Schedule 1.1

	 	-
	 	Agents’ Representatives
	Disclosure Schedule 3.1

	 	-
	 	Type of Entity; State of Organization
	Disclosure Schedule 3.2

	 	-
	 	Executive Offices, Collateral Locations, FEIN
	Disclosure Schedule 3.4(a)

	 	-
	 	Holdings’ and its Subsidiaries’ Financial Statements
	Disclosure Schedule 3.4(b)

	 	-
	 	CSC Holdings’ Financial Statements
	Disclosure Schedule 3.4(c)

	 	-
	 	Projections
	Disclosure Schedule 3.6

	 	-
	 	Real Estate and Leases
	Disclosure Schedule 3.7

	 	-
	 	Labor Matters
	Disclosure Schedule 3.8

	 	-
	 	Ventures, Subsidiaries and
Affiliates; Outstanding Stock
	Disclosure Schedule 3.11

	 	-
	 	Tax Matters
	Disclosure Schedule 3.12

	 	-
	 	ERISA Plans
	Disclosure Schedule 3.13

	 	-
	 	Litigation
	Disclosure Schedule 3.15

	 	-
	 	Intellectual Property
	Disclosure Schedule 3.17

	 	-
	 	Hazardous Materials
	Disclosure Schedule 3.18

	 	-
	 	Insurance
	Disclosure Schedule 3.19

	 	-
	 	Deposit and Disbursement Accounts
	Disclosure Schedule 3.20

	 	-
	 	Government Contracts
	Disclosure Schedule 3.22

	 	-
	 	Material Agreements
	Disclosure Schedule 5.1

	 	-
	 	Trade Names
	Disclosure Schedule 6.3

	 	-
	 	Indebtedness

v

 

	 	 	 	 	 
	Disclosure Schedule 6.4(a)

	 	-
	 	Transactions with Affiliates
	Disclosure Schedule 6.7

	 	-
	 	Existing Liens
	Disclosure Schedule 6.20(b)

	 	-
	 	WESCO Finance
	Disclosure Schedule 6.20(c)

	 	-
	 	WDC Holding

[Certain Annexes, Exhibits, Schedules and Disclosure Schedules have been omitted and will be
furnished upon request.]

vi

 

     This THIRD AMENDED AND RESTATED CREDIT AGREEMENT (this “Agreement”), dated as of
November 1, 2006 among WESCO Distribution, Inc., a Delaware corporation (“WESCO
Distribution”), WESCO Equity Corporation, a Delaware corporation (“WESCO Equity”),
Herning Enterprises, Inc., a Delaware corporation (“Herning”), WESCO Nevada, Ltd., a Nevada
corporation (“WESCO Nevada”), Carlton-Bates Company, an Arkansas corporation
(“Carlton-Bates”) and Carlton-Bates Company of Texas, LP, a Texas limited partnership
(“Carlton-Bates Texas LP” and together with WESCO Distribution, WESCO Equity, Herning,
WESCO Nevada, and Carlton-Bates, the “US Borrowers” and each individually as a “US
Borrower”); WESCO Distribution Canada LP, an Ontario limited partnership (“WESCO DC
LP”) (WESCO DC LP and any other Canadian Borrowers from time to time party hereto are sometimes
collectively referred to herein as the “Canadian Borrowers” and individually as a
“Canadian Borrower”, and the US Borrowers and Canadian Borrowers are referred to herein,
individually, as a “Borrower” and collectively, as “Borrowers”); the other Credit
Parties signatory hereto; GENERAL ELECTRIC CAPITAL CORPORATION, a Delaware corporation (in its
individual capacity, “GE Capital”), for itself, as a US Lender, and as Agent for US Lenders
with respect to Loans and other credit made available to US Borrowers and as an agent for Canadian
Agent and all Lenders with respect to Collateral owned by a US Credit Party; the other US Lenders
that are parties hereto from time to time; GE CANADA FINANCE HOLDING COMPANY, a Nova Scotia
unlimited liability company (“GE Capital Canada”), as a Canadian Lender and as Canadian
Agent for Loans and other credit made available to Canadian Borrowers and as agent for Canadian
Lenders with respect to Collateral owned by a Canadian Credit Party; the other Canadian Lenders
that are parties hereto from time to time; and GECC CAPITAL MARKETS GROUP, INC., as Lead Arranger.

RECITALS

     WHEREAS, WESCO Distribution, GE Capital, for itself, as Lender and as Agent, and the Lenders
are parties to that certain Second Amended and Restated Credit Agreement, dated as of September 29,
2005 (as amended, restated or otherwise modified, the “Existing Credit Agreement”); and

     WHEREAS, WESCO Distribution and the other Borrowers have requested that the Existing Credit
Agreement be amended and restated in its entirety to read as set forth herein; and

     WHEREAS, Borrowers have requested that Lenders extend a revolving credit facility to Borrowers
of up to Four Hundred and Forty Million Dollars ($440,000,000) in the aggregate, including a letter
of credit subfacility of up to $50,000,000, for the purpose of refinancing certain indebtedness of
Borrowers and to provide (a) working capital financing for Borrowers and, to the extent set forth
herein, certain of their Subsidiaries, (b) funds for other general corporate purposes of Borrowers
and (c) funds for other purposes permitted hereunder; and for these purposes, Lenders are willing
to make certain loans and other extensions of credit to Borrowers of up to such amount upon the
terms and conditions set forth herein; and

     WHEREAS, US Borrowers shall obtain credit under this facility from US Lenders (defined below)
and Canadian Borrowers shall obtain credit under this facility from, and make interest and fee
payments in respect thereof to, Canadian Lenders (defined below); and

 

 

     WHEREAS, Borrowers have agreed to secure all of their respective obligations under the Loan
Documents by granting to Agent or Canadian Agent, as applicable, for the benefit of the Applicable
Agents and Lenders, a security interest in and lien upon all of their existing personal and
after-acquired assets and property; and

     WHEREAS, the Lenders are willing to amend and restate the Existing Credit Agreement in its
entirety so that it shall read in its entirety as set forth herein; and

     WHEREAS, WESCO International, Inc., a Delaware corporation (“Holdings”) is willing to
guarantee all of the obligations of Borrowers to Agent, Canadian Agent and Lenders under the Loan
Documents, to pledge to Agent, for the benefit of Agent, Canadian Agent and Lenders, all of the
Stock of WESCO Distribution and WESCO Finance Corporation, a Delaware corporation (“WESCO
Finance”), to secure such guaranty and to grant to Agent, for the benefit of Agent, Canadian
Agent and Lenders, a security interest in all of its other assets and properties to secure such
guaranty; and

     WHEREAS, WESCO Finance is willing to guarantee all of the obligations of Borrowers to Agent,
Canadian Agent and Lenders under the Loan Documents, to pledge to Agent, for the benefit of Agent,
Canadian Agent and Lenders, all of its Stock in WDC Holding, and to grant to Agent, for the benefit
of Agent, Canadian Agent and Lenders, a security interest in all of its other assets and properties
to secure such guaranty; and

     WHEREAS, WDC Holding is willing to guarantee all of the obligations of the Borrowers to Agent,
Canadian Agent and Lenders under the Loan Documents, and, subject to the terms of this Agreement to
pledge to Agent, for the benefit of Agent, Canadian Agent and Lenders, all of its Stock in WESCO
Distribution Canada Co. (“WESCO Canada”) and WESCO Voltage (as defined herein), and,
subject to the terms of this Agreement to grant to Agent, for the benefit of Agent, Canadian Agent
and Lenders, a security interest in all of its other assets and properties to secure such guaranty;
and

     WHEREAS, WESCO Voltage is willing to guarantee all of the obligations of Borrowers to Agent,
Canadian Agent and Lenders under the Loan Documents, to pledge to Agent, for the benefit of Agent,
Canadian Agent and Lenders, all of its Stock, and to grant to Agent, for the benefit of Agent,
Canadian Agent and Lenders, a security interest in all of its other assets and properties to secure
such guaranty; and

     WHEREAS, WESCO Canada is willing to guarantee all of the obligations of the Canadian Borrowers
to Agent, Canadian Agent and Lenders under the Loan Documents, to pledge to Canadian Agent, for the
benefit of Agent, Canadian Agent and Lenders, 65% of its Stock in WESCO Distribution Canada GP Inc.
(“WESCO DC GP”) and in WESCO Distribution Canada LP (“WESCO DC LP”) and all of its
Stock in WESCO Receivables and WESCO Nevada
and to grant to Canadian Agent, for the benefit of Agent, Canadian Agent and Lenders, a
security interest in all of its other assets and properties to secure such guaranty; and

     WHEREAS, WESCO DC GP is willing to guarantee all of the obligations of the Canadian Borrowers
to Agent, Canadian Agent and Lenders under the Loan Documents, to pledge to Canadian Agent, for the
benefit of Agent, Canadian Agent and Lenders, all of its Stock

2

 

in WESCO DC LP and to grant to
Canadian Agent, for the benefit of Agent and Lenders, a security interest in all of its other
assets and properties to secure such guaranty; and

     WHEREAS, the Borrowers’ and Credit Parties’ business is a mutual and collective enterprise and
the Borrowers believe that the consolidation of all loans and other financial accommodations under
this Agreement, and the cross-guaranty, guarantee and cross-collateralization of the US Obligations
and the Canadian Obligations (except to the extent otherwise provided herein), will enhance the
aggregate borrowing powers of the Borrowers and credit availability to the other Credit Parties and
facilitate their loan relationship with the Agents and the Lenders, all to the mutual advantage of
the Borrowers and the other Credit Parties; and

     WHEREAS, each Borrower and each Credit Party acknowledges that it will receive substantial
direct and indirect benefits by reason of the making of loans and other financial accommodations to
the other Borrowers as provided in this Agreement by virtue of the Borrowers’ various
inter-relationships; and

     WHEREAS, the Agents’ and the Lenders’ willingness to extend financial accommodations to the
Borrowers, and to administer each Borrower’s and each Credit Party’s collateral security therefor,
on a combined basis as more fully set forth in this Agreement, is done solely as an accommodation
to the Borrowers and Credit Parties and at the Borrowers’ request and in furtherance of the
Borrowers’ and Credit Parties’ mutual and collective enterprise; and

     WHEREAS, capitalized terms used in this Agreement shall have the meanings ascribed to them in
Annex A and, for purposes of this Agreement and the other Loan Documents, the rules of
construction set forth in Annex A shall govern. All Annexes, Disclosure Schedules,
Exhibits and other attachments (collectively, “Appendices”) hereto, or expressly identified
to this Agreement, are incorporated herein by reference, and taken together with this Agreement,
shall constitute but a single agreement. These Recitals shall be construed as part of the
Agreement.

     NOW, THEREFORE, in consideration of the premises and the mutual covenants hereinafter
contained, and for other good and valuable consideration, the parties hereto agree as follows:

     1. AMOUNT AND TERMS OF CREDIT

     1.1 Credit Facilities.

     (a) Revolving Credit Facility.

          (i) Subject to the terms and conditions hereof, each Lender agrees to make available to US
Borrowers and to Canadian Borrowers from time to time until the
Commitment Termination Date its Pro Rata Share of advances (each, a “Revolving Credit
Advance”) provided that all Revolving Credit Advances hereunder to US Borrowers shall
be made by US Lenders and all Revolving Credit Advances hereunder to Canadian Borrowers shall be
made by Canadian Lenders. The aggregate amount of all Revolving Credit Advances to US

3

 

Borrowers
shall not exceed $375,000,000, and the aggregate amount of all Revolving Credit Advances to
Canadian Borrowers shall not exceed the Dollar Equivalent Amount of $65,000,000. The Pro Rata
Share of the Revolving Loan of any Lender shall not at any time exceed its applicable Revolving
Loan Commitment (as determined separately in respect of US Borrowers, on the one hand, and Canadian
Borrowers, on the other hand). The obligations of each Lender hereunder shall be several and not
joint. Until the Commitment Termination Date, Borrowers may from time to time borrow, repay and
reborrow under this Section 1.1(a); provided, that (A) the amount of any Revolving Credit
Advance to be made at any time to US Borrowers shall not exceed US Borrowing Availability at such
time; (B) the amount of any Revolving Credit Advance to be made at any time to Canadian Borrowers
shall not exceed Canadian Borrowing Availability at such time; and (C) the aggregate amount of
Revolving Credit Advances shall not exceed Borrowing Availability to all Borrowers. Borrowing
Availability may be further reduced by Reserves imposed by Agent in its reasonable credit judgment.
Moreover, the sum of the Revolving Loan and Swing Line Loan outstanding to (I) all US Borrowers
shall not exceed at any time the US Borrowing Base and (II) all Canadian Borrowers shall not exceed
at any time the Canadian Borrowing Base. Each Revolving Credit Advance shall be made on notice by
Borrower Representative on behalf of the applicable Borrower to one of the representatives of Agent
identified in Schedule 1.1 at the address specified therein and in the case of Canadian
Revolving Credit Advances, to the Canadian Agent as well. Any such notice must be given no later
than (1) 12:00 noon (New York time) on the Business Day of the proposed Revolving Credit Advance,
in the case of an Index Rate Loan, or (2) 12:00 noon (New York time) on the date which is 3
Business Days prior to the proposed Revolving Credit Advance, in the case of a LIBOR Loan or BA
Rate Loan. Each such notice (a “Notice of Revolving Credit Advance”) must be given in
writing (by telecopy or overnight courier) substantially in the form of Exhibit 1.1(a)(i),
and shall include the information required in such Exhibit and such other information as may be
required by Agent. If any Borrower desires to have the Revolving Credit Advances bear interest by
reference to a LIBOR Rate or BA Rate, Borrower Representative must comply with Section
1.5(e).

          (ii) Except as provided in Section 1.12, each US Borrower shall execute and deliver to
the Agent for delivery to each US Lender a single note to evidence the Revolving Loan Commitment of
that US Revolving Lender, and each Canadian Borrower shall execute and deliver to the Agent for
delivery to each Canadian Lender a single note to evidence the Revolving Loan Commitment of that
Canadian Lender. Each note shall be in the principal amount of the Revolving Loan Commitment of
the applicable Lender, dated the Closing Date and substantially in the form of Exhibit
1.1(a)(ii) (each a “Revolving Note” and, collectively, the “Revolving Notes”).
Each Revolving Note shall represent the obligation of the applicable Borrower to pay the amount of
the applicable Lender’s Revolving Loan Commitment or, if less, such Lender’s Pro Rata Share of the
aggregate unpaid principal amount of all US Revolving Credit Advances to such US Borrower or
Canadian Revolving Credit Advances to such Canadian Borrower, as applicable in each case together
with interest thereon as prescribed in Section 1.5. The entire unpaid balance of the
Revolving Loan and all other non-contingent Obligations shall be
immediately due and payable in full in immediately available funds on the Commitment
Termination Date.

4

 

          (iii) Any provision of this Agreement to the contrary notwithstanding, at the request of
Borrower Representative, in its discretion (A) Agent may (but shall have absolutely no obligation
to), make Revolving Credit Advances to US Borrowers on behalf of US Lenders in amounts that cause
the outstanding balance of the US Revolving Loan to exceed the US Borrowing Base (less the US Swing
Line Loan), and (B) Canadian Agent may (but shall have absolutely no obligation to), make Revolving
Credit Advances to Canadian Borrowers on behalf of Canadian Lenders in amounts that cause the
outstanding balance of the Canadian Revolving Credit Advance to exceed the Canadian Borrowing Base
(less the Canadian Swing Line Advances) (any such excess US or Canadian Revolving Credit Advances
are herein referred to collectively as “Overadvances”); provided that (A) no such event or
occurrence shall cause or constitute a waiver of Agent’s, Canadian Agent’s, the Swing Line Lender’s
or Lenders’ right to refuse to make any further Overadvances, Swing Line Advances or Revolving
Credit Advances, or incur any Letter of Credit Obligations, as the case may be, at any time that an
Overadvance exists, and (B) no Overadvance shall result in a Default or Event of Default due to
Borrowers’ failure to comply with Section 1.3(a)(i) for so long as Agent or Canadian Agent
permits such Overadvance to remain outstanding, but solely with respect to the amount of such
Overadvance. In addition, Overadvances may be made even if the conditions to lending set forth in
Section 2 have not been met. All Overadvances shall constitute Index Rate Loans, shall
bear interest at the Default Rate and shall be payable on demand. Except as otherwise provided in
Section 1.11(b), (A) the authority of Agent to make Overadvances is limited to an aggregate
amount not to exceed $30,000,000 at any time, (B) the authority of Canadian Agent to make
Overadvances is limited to an aggregate amount not to exceed CD$6,500,000 at any time, (C) in no
event shall either Agent permit any Overadvance to cause (1) the aggregate Revolving Loan to exceed
the Maximum Amount, (2) the aggregate US Revolving Loan to exceed the Maximum US Amount, or (3) the
aggregate Canadian Revolving Loan to exceed the Maximum Canadian Amount and (D) in no event shall
either Agent permit any Overadvance to remain outstanding for more than 90 days in any 180-day
period, and may be revoked prospectively by a written notice to such Applicable Agent signed by, in
the case of Overadvances pursuant to clause (A), US Lenders holding more than 50% of the US
Revolving Loan Commitments and in the case of Overadvances pursuant to clause (B), Canadian Lenders
holding more than 50% of the Canadian Revolving Loan Commitments.

     (b) Swing Line Facility.

          (i) Agent shall notify the Swing Line Lender upon Agent’s receipt of any Notice of Revolving
Credit Advance. Subject to the terms and conditions hereof, the Swing Line Lender may, in its
discretion, make available from time to time until the Commitment Termination Date advances (each,
a “Swing Line Advance”) in accordance with any such notice, provided that all Swing
Line Advances hereunder to US Borrowers shall be made by the applicable Swing Line Lender in
Dollars (“US Swing Line Advances”) and all Swing Line Advances hereunder to Canadian
Borrowers shall be made by the applicable Swing Line Lender in Canadian Dollars (“Canadian
Swing Line Advances”). The provisions of this Section 1.1(b) shall not relieve Lenders
of their obligations to make Revolving Credit Advances under Section 1.1(a);
provided that if the Swing Line Lender makes a Swing Line Advance pursuant to any such notice,
such Swing Line Advance shall be in lieu of any Revolving Credit Advance that otherwise may be made
by Lenders pursuant to such notice. The aggregate amount of Swing

5

 

Line Advances outstanding (A) to
US Borrowers shall not exceed at any time the lesser of (1) the Swing Line Commitment to US
Borrowers and (2) the lesser of the Maximum US Amount and (except for Overadvances) the US
Borrowing Base, in each case, less the outstanding balance of the US Revolving Loan at such time;
and (B) to Canadian Borrowers shall not exceed at any time the lesser of (1) the Swing Line
Commitment to Canadian Borrowers and (2) the lesser of the Maximum Canadian Amount and (except for
Overadvances) the Canadian Borrowing Base, in each case, less the outstanding balance of the
Canadian Revolving Loan at such time (in each case respectively under the preceding clause (A) or
clause (B), “Swing Line Availability”). Moreover, except for Overadvances, the aggregate
US Swing Line Advances shall not exceed at any time the US Borrowing Base less the US Revolving
Loan, and the aggregate Canadian Swing Line Advances shall not exceed at any time the Canadian
Borrowing Base less the Canadian Revolving Loan. Until the Commitment Termination Date, Borrowers
may from time to time borrow, repay and reborrow under this Section 1.1(b). Each Swing
Line Advance shall be made pursuant to a Notice of Revolving Credit advance delivered to Agent (and
in the case of Canadian Swing Line Advances, to Canadian Agent as well) by Borrower Representative
on behalf of the applicable Borrower in accordance with Section 1.1(a). Any such notice
must be given no later than 1:00 p.m. (New York time) on the Business Day of the proposed Swing
Line Advance. Unless the Swing Line Lender has received at least one Business Day’s prior written
notice from Requisite Lenders instructing it not to make a Swing Line Advance, the Swing Line
Lender shall, notwithstanding the failure of any condition precedent set forth in Section
2.2, be entitled to fund that Swing Line Advance, and to have such Lender make Revolving Credit
Advances in accordance with Section 1.1(b)(iii) or purchase participating interests in
accordance with Section 1.1(b)(iv). Notwithstanding any other provision of this Agreement
or the other Loan Documents, the Swing Line Loan shall constitute a Loan bearing interest at the
commercial paper rate plus the Applicable Revolver LIBOR Margin for US Swing Line Advances or the
Index Rate plus the Applicable Revolver BA Margin for Canadian Swing Line Advances in Canadian
Dollars as provided in Section 1.5(a) and no Swing Line Loan shall remain outstanding for
more than fifteen (15) days. The applicable Borrowers shall repay to the Applicable Swing Line
Lender the aggregate outstanding principal amount of the Swing Line Loan upon demand therefor by
Agent.

          (ii) Each Borrower shall execute and deliver to the applicable Swing Line Lender a promissory
note to evidence the Swing Line Commitment. Each note shall be in the principal amount of the
Swing Line Commitment of such Swing Line Lender, dated the Closing Date and substantially in the
form of Exhibit 1.1(b)(ii) (each a “Swing Line Note” and, collectively, the
“Swing Line Notes”). Each Swing Line Note shall represent the obligation of each
applicable Borrower to pay the amount of the Swing Line Commitment or, if less, the aggregate
unpaid principal amount of all Swing Line Advances made to Borrowers together with interest thereon
as prescribed in Section 1.5. The entire unpaid balance of the Swing Line Loan and all
other noncontingent Obligations shall be immediately due and payable in full in immediately
available funds on the Commitment Termination Date if not sooner paid in full.

          (iii) The Swing Line Lender (either the US or Canadian Swing Line Lender, as applicable), at
any time and from time to time in its sole and absolute discretion, may,
on behalf of any applicable Borrower (and each such Borrower hereby irrevocably authorizes the
applicable Swing Line Lender to so act on its behalf), request each Lender (including the

6

 

applicable Swing Line Lender) to make a Revolving Credit Advance to the applicable Borrower (which
shall be an Index Rate Loan) in an amount equal to that Lender’s Pro Rata Share of the principal
amount of the applicable Swing Line Loan (the “Refunded Swing Line Loan”) outstanding on
the date such notice is given, provided that all Revolving Credit Advances to US Borrowers
shall be made by US Lenders and all Revolving Credit Advances to Canadian Borrowers shall be made
by Canadian Lenders. Unless any of the events described in Sections 8.1(h) or
8.1(i) has occurred (in which event the procedures of Section 1.1(b)(iv) shall
apply) and regardless of whether the conditions precedent set forth in this Agreement to the making
of a Revolving Credit Advance are then satisfied, each Lender shall disburse directly to Agent or
Canadian Agent, as applicable, its Pro Rata Share of a Revolving Credit Advance on behalf of the
Swing Line Lender, prior to 3:00 p.m. (New York time), in immediately available funds on the
Business Day next succeeding the date that notice is given. The proceeds of those Revolving Credit
Advances shall be immediately paid to the applicable Swing Line Lender and applied to repay the
Refunded Swing Line Loan of the applicable Borrower.

          (iv) If, prior to refunding a Swing Line Loan with a Revolving Credit Advance pursuant to
Section 1.1(b)(iii), one of the events described in Sections 8.1(h) or
8.1(i) has occurred, then, subject to the provisions of Section 1.1(b)(v) below,
each applicable Lender shall, on the date such Revolving Credit Advance was to have been made for
the benefit of the applicable Borrower, purchase from the applicable Swing Line Lender an undivided
participation interest in the Swing Line Loan of the applicable Borrower in an amount equal to its
Pro Rata Share of such Swing Line Loan. Upon request, each Lender shall promptly transfer to the
applicable Swing Line Lender, in immediately available funds, the amount of its participation
interest.

          (v) Each Lender’s obligation to make Revolving Credit Advances in accordance with Section
1.1(b)(iii) and to purchase participation interests in accordance with Section
1.1(b)(iv) shall be absolute and unconditional and shall not be affected by any circumstance,
including (A) any setoff, counterclaim, recoupment, defense or other right that such Lender may
have against the applicable Swing Line Lender, any Borrower or any other Person for any reason
whatsoever; (B) the occurrence or continuance of any Default or Event of Default; (C) any inability
of any Borrower to satisfy the conditions precedent to borrowing set forth in this Agreement at any
time or (D) any other circumstance, happening or event whatsoever, whether or not similar to any of
the foregoing. If any Lender does not make available to Agent or Canadian Agent or the applicable
Swing Line Lender, as applicable, the amount required pursuant to Sections 1.1(b)(iii) or
1.1(b)(iv), as the case may be, the applicable Swing Line Lender shall be entitled to
recover such amount on demand from such Lender, together with interest thereon for each day from
the date of non-payment until such amount is paid in full at the Federal Funds Rate for the first
two Business Days and at the Index Rate thereafter.

     (c) Reliance on Notices, Appointment of Borrower Representative. Each Agent shall be
entitled to rely upon, and shall be fully protected in relying upon, any Notice of Revolving Credit
Advance, Notice of Conversion/Continuation or similar notice believed by each Agent to be genuine.
Each Agent may assume that each Person executing and delivering any
notice in accordance herewith was duly authorized, unless the responsible individual acting

7

 

thereon for the Applicable Agent has actual knowledge to the contrary. Each Borrower hereby
designates WESCO Distribution as its representative and agent on its behalf for the purposes of
issuing Notices of Revolving Credit Advances and Notices of Conversion/Continuation, giving
instructions with respect to the disbursement of the proceeds of the Loans, selecting interest rate
options, requesting Letters of Credit, giving and receiving all other notices and consents
hereunder or under any of the other Loan Documents and taking all other actions (including in
respect of compliance with covenants) on behalf of any Borrower or Borrowers under the Loan
Documents. Borrower Representative hereby accepts such appointment. Each Agent and each Lender may
regard any notice or other communication pursuant to any Loan Document from Borrower Representative
as a notice or communication from all Borrowers, and may give any notice or communication required
or permitted to be given to any Borrower or Borrowers hereunder to Borrower Representative on
behalf of such Borrower or Borrowers. Each Borrower agrees that each notice, election,
representation and warranty, covenant, agreement and undertaking made on its behalf by Borrower
Representative shall be deemed for all purposes to have been made by such Borrower and shall be
binding upon and enforceable against such Borrower to the same extent as if the same had been made
directly by such Borrower (subject to the limitations on Canadian Borrowers’ repayment and guaranty
and security obligations set forth in Section 12).

     1.2 Letters of Credit. Subject to and in accordance with the terms and conditions
contained herein and in Annex B, Borrower Representative, on behalf of the applicable
Borrower, shall have the right to request, and US Lenders agree to incur, or purchase
participations in, Letter of Credit Obligations in respect of each US Borrower (“US Letter of
Credit Obligations”), and Canadian Lenders agree to incur, or purchase participations in,
Letter of Credit Obligations denominated in Canadian Dollars in respect of each Canadian Borrower
(“Canadian Letter of Credit Obligations”).

     1.3 Prepayments.

     (a) Voluntary Prepayments; Reductions in Revolving Loan Commitments. Borrowers may at
any time on at least 5 days prior written notice by Borrower Representative to Agent permanently
reduce (but not terminate) the Revolving Loan Commitment; provided that (A) any such
reductions shall be in a minimum amount of $5,000,000 and integral multiples of $1,000,000 in
excess of such amount, (B) the Revolving Loan Commitment shall not be reduced to an amount less
than the amount of the Revolving Loan then outstanding, plus $25,000,000, and (C) after giving
effect to such reduction, Borrowers shall comply with Section 1.3(b)(i). Borrowers may at
any time on at least ten 10 days prior written notice by Borrower Representative to Agent terminate
the Revolving Loan Commitment, provided that upon such termination all Loans and other
Obligations shall be immediately due and payable in full and all Letter of Credit Obligations shall
be cash collateralized or otherwise satisfied in accordance with Annex B hereto. Any
reduction or termination of the Revolving Loan Commitment must be accompanied by the payment of any
LIBOR or BA Rate funding breakage costs in accordance with Sections 1.13(b) or 1.13(c).
Upon any such reduction or termination of the Revolving Loan Commitment, Borrowers’ right to
request Revolving Credit Advances, or request that Letter of Credit Obligations be incurred on
their behalf, or request Swing Line Advances, shall
simultaneously be permanently reduced or terminated, as the case may be; provided that
a

8

 

permanent reduction of the Revolving Loan Commitment shall not require a corresponding pro rata
reduction in the L/C Sublimit. Each notice of partial prepayment shall designate the Loans or
other Obligations to which such prepayment is to be applied; provided, any partial
prepayments or reduction in the Revolving Loan made by or on behalf of (i) any US Borrower shall be
applied to the US Loans and (ii) any Canadian Borrower shall be applied to the Canadian Loans.

     (b) Mandatory Prepayments.

          (i) If at any time the US Borrowing Availability is less than zero, US Borrowers shall
immediately repay the aggregate outstanding Revolving Credit Advances to the extent required to
cause US Borrowing Availability to be at least zero. If US Borrowing Availability is less than
zero after repayment in full of the aggregate outstanding US Revolving Credit Advances, US
Borrowers shall provide cash collateral for the US Letter of Credit Obligations in the manner set
forth in Annex B to the extent required to cause US Borrowing Availability to be at least
zero. If at any time the Canadian Borrowing Availability is less than zero, Canadian Borrowers
shall immediately repay the aggregate outstanding Revolving Credit Advances to the extent required
to cause Canadian Borrowing Availability to be at least zero. If Canadian Borrowing Availability
is less than zero after repayment in full of the aggregate outstanding Canadian Revolving Credit
Advances, Canadian Borrowers shall provide cash collateral for the Canadian Letter of Credit
Obligations in the manner set forth in Annex B to the extent required to cause Canadian
Borrowing Availability to be at least zero. Notwithstanding the foregoing, any Overadvance made
pursuant to Section 1.1(a)(iii) shall be repaid only on demand.

          (ii) Immediately upon receipt by any Credit Party of proceeds of any asset disposition
(excluding proceeds of asset dispositions permitted by Section 6.8(a)) or any sale of Stock
of any Subsidiary of any Credit Party or of any incurrence of Indebtedness in a mortgage financing
transaction permitted under Section 6.3(a)(x) or the incurrence of any other Indebtedness
from any third party in a transaction permitted under Section 6.3, other than the issuance
of Indebtedness pursuant to Section 6.3(a)(xxiv). Borrowers shall prepay the Loans in an amount
equal to all such proceeds, net of (A) commissions and other reasonable and customary transaction
costs, fees and expenses properly attributable to such transaction and payable by Borrowers in
connection therewith (in each case, paid to non-Affiliates), (B) transfer taxes, (C) amounts
payable to holders of senior Liens (to the extent such Liens constitute Permitted Encumbrances
hereunder), if any, and (D) an appropriate reserve for income taxes in accordance with GAAP in
connection therewith. Any such prepayment shall be applied in accordance with Section
1.3(c).

          (iii) If Holdings or any Borrower issues Stock, other than (i) the issuance of common Stock of
Holdings in connection with 401(k) plans established for the benefit of employees, (ii) the
issuance of common Stock upon the exercise of the stock options granted to employees pursuant to
stock option plans adopted for the benefit of employees and (iii) the issuance of common Stock of
Holdings in connection with Permitted Acquisitions consummated in compliance with each of the terms
and conditions of Section 6.1; provided, that, in the case of each of
clauses (i), (ii) and (iii), there shall be no Change of Control upon any
such

9

 

issuance of common Stock of Holdings, and no later than the Business Day following the date of
receipt of
the proceeds thereof, Borrowers shall prepay the Loans in an amount equal to all such
proceeds, net of underwriting discounts and commissions and other reasonable costs paid to
non-Affiliates in connection therewith. Any such prepayment shall be applied in accordance with
Section 1.3(c).

     (c) Application of Certain Mandatory Prepayments. Any prepayments made by any
Borrower pursuant to Sections 1.3(b)(ii) or (b)(iii) above shall be applied as follows:
first, to Fees and reimbursable expenses of the Agents then due and payable pursuant to any
of the Loan Documents; second, to interest then due and payable on the Swing Line Loan;
third, to the principal balance of the Swing Line Loan until the same has been repaid in
full; fourth, to interest then due and payable on the Revolving Credit Advances;
fifth, to the outstanding principal balance of Revolving Credit Advances until the same has
been paid in full; sixth, other than net proceeds from the issuance of common Stock and the
issuance of Indebtedness in a transaction permitted under Section 6.3(a)(xxiv), to any Letter of
Credit Obligations, to provide cash collateral therefor in the manner set forth in Annex B,
until all such Letter of Credit Obligations have been fully cash collateralized in the manner set
forth in Annex B and seventh, unless such application would have an adverse tax
consequence for the Borrowers under IRC Section 956, to Obligations of the same type and in the
same order as set forth in the preceding clauses “first” through “sixth” of the US Borrowers or
Canadian Borrowers as applicable whose Obligations were not covered by such preceding clauses.
Neither the Revolving Loan Commitment nor the Swing Line Commitment shall be permanently reduced by
the amount of any such prepayments.

     (d) Application of Prepayments from Insurance Proceeds and Condemnation Proceeds.
Prepayments from insurance or condemnation proceeds in accordance with Section 5.4(c) and
insurance or condemnation proceeds from casualties or losses to Equipment, Fixtures and Real
Estate, respectively, shall be applied as follows: insurance proceeds from casualties or losses
shall be applied first, to the Swing Line Loans and, second, to the Revolving Credit Advances of
the Borrower group (either US Borrowers or Canadian Borrowers) encompassing the Borrower that
incurred such casualties or losses. Neither the Revolving Loan Commitment nor the Swing Line Loan
Commitment shall be permanently reduced by the amount of any such prepayments. If insurance or
condemnation proceeds received by a particular Borrower exceed the outstanding principal balances
of the Loans to that Borrower group (either US Borrowers or Canadian Borrowers) encompassing the
relevant Borrower, those proceeds shall be applied by Agent, (i) in respect of proceeds received by
a US Borrower, first to US Obligations, and second to Canadian Obligations; and
(ii) in respect of proceeds received by a Canadian Borrower, solely to Canadian Obligations.

     (e) No Implied Consent. Nothing in this Section 1.3 shall be construed to
constitute Agent’s or any Lender’s consent to any transaction that is not permitted by other
provisions of this Agreement or the other Loan Documents.

     (f) Allocation among US Borrowers and Canadian Borrowers. Notwithstanding anything to
the contrary contained herein, subject to Section 1.11, each prepayment required under this
Section 1.3 shall be allocated first, to the applicable Obligations

10

 

of the Borrower
group (either US Borrowers or Canadian Borrowers) encompassing the Borrower whose assets gave rise
to such prepayment and second, in the case of prepayments by US Borrowers in excess of the
US Obligations, such excess shall be applied to the Canadian
Obligations, it being understood and agreed that under no circumstances shall any prepayment
by the Canadian Borrowers (or any Collateral thereof or the proceeds thereof) be applied to the US
Obligations unless, not later than fifteen (15) Business Days prior to any proposed application of
any prepayment by the Canadian Borrowers (or any Collateral thereof or the proceeds thereof) to the
US Obligations, the Agent notifies the Borrower Representative in writing of its intention to make
such application and, if the Borrower Representative believes that such application would have a
Negative Effect, the procedures set forth in Section 5.12 with respect to obtaining a tax
opinion shall be followed and no such application shall be made unless and until such opinion is
delivered. If such opinion states that there will be no Negative Effect as a result of such
application or if no such opinion is delivered within 15 days of Agent’s notice to Borrower
Representative, such application may be made. The amount of any prepayment shall, in the exercise
of Agent’s reasonable discretion, be allocated among individual Borrowers, in each case as
appropriate in order to approximately reflect the ownership of the asset as to which such
prepayment is made or the existence of the overadvance.

     (g) Application of Net Proceeds of CSC Borrowers Securitization. Upon consummation of
the qualification and sale of the Accounts of any of the CSC Borrowers into the securitization
provided under the terms of the Receivables Purchase Agreement and Receivables Sale Agreement, as
contemplated by Section 5.13 and the other applicable provisions of the Agreement, the US Borrowers
shall apply the entire net proceeds from the consummation of such transaction (i.e. the
initial net proceeds from the qualification and sale of the Accounts of CSC Borrowers into such
securitization) to repay the then outstanding US Revolving Credit Obligations. Such repayment
shall not result in any reduction in the Revolving Loan Commitment or Swing Line Commitment.

     1.4 Use of Proceeds.

     Borrowers shall utilize the proceeds of the Revolving Loan and the Swing Line Loan for the
financing of Borrowers’ ordinary working capital and general corporate needs, including to the
extent, and only to the extent, (i) set forth in Section 6.3 to be used by Borrowers to
make intercompany loans and advances to Credit Parties which are Guarantors and other Subsidiaries
of Borrowers but solely to the extent permitted hereunder, (ii) set forth in Section 6.14,
to be used by Borrowers in connection with the repurchase of Holdings’ publicly traded common Stock
and (iii) set forth in Section 6.1, to be used by Borrowers in connection with the
consummation of a Permitted Acquisition consummated in compliance with each of the terms and
conditions of Section 6.1.

     1.5 Interest and Applicable Margins.

     (a) US Borrowers shall pay interest to Agent, for the ratable benefit of Lenders in accordance
with the various US Loans being made by each US Lender, and Canadian Borrowers shall pay interest
to Canadian Agent, for the ratable benefit of Canadian Lenders, in accordance with the various
Canadian Loans being made by each Canadian Lender in arrears on each applicable Interest Payment
Date, at the following rates: (i) with respect to the Revolving

11

 

Credit Advances and the Canadian
Swing Line Loan, the Index Rate plus the Applicable Revolver Index Margin per annum or, at the
election of Borrower Representative, (A) for US Revolving
Credit Advances, the applicable LIBOR Rate plus the Applicable Revolver LIBOR Margin per
annum, or (B) for Canadian Revolving Credit Advances the Applicable BA Rate plus the Applicable
Revolver BA Margin based on the aggregate Revolving Credit Advances outstanding from time to time;
(ii) with respect to the Swing Line Loan, at the rate equal to the last month end published rate
for 30 day dealer commercial paper (high grade unsecured notes sold through dealers by major
corporations in multiples of $1,000) which normally appears in the “Money Rate” column of the Wall
Street Journal, plus the Applicable Revolver LIBOR Margin per annum.

     As of the Closing Date, the Applicable Margins are as follows:

	 	 	 	 	 
	Applicable Revolver Index Margin
	 	 	0.00	%
	 
	 	 	 	 
	Applicable Revolver LIBOR Margin
	 	 	1.25	%
	 
	 	 	 	 
	Applicable Revolver BA Margin
	 	 	1.25	%
	 
	 	 	 	 
	Applicable L/C Margin
	 	 	1.25	%
	 
	 	 	 	 
	Applicable Unused Line Fee Margin
	 	 	.375	%

     The Applicable Margins shall be adjusted (up or down) prospectively as determined by
Borrowers’ average daily excess Borrowing Availability for the quarter then ended, commencing with
the first day of the first calendar month that occurs more than five (5) days after delivery of
Borrowers’ Compliance Certificate to Lenders for the Fiscal Quarter ending March 31, 2007.
Adjustments in Applicable Margins will be determined by reference to the following grids:

     (x) For Interest, Letter of Credit Fees and Unused Line Fee:

	 	 	 
	 	 	Level of
	If Excess Borrowing Availability is:	 	Applicable Margins:
	<100,000,000
	 	Level I
	<150,000,000, but 3 100,000,000
	 	Level II
	£225,000,000, but 3 150,000,000
	 	Level III
	>225,000,000
	 	Level IV

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	 	 	Applicable Margins	 	 	 	 
	 	 	Level I	 	Level II	 	Level III	 	Level IV
	Applicable Revolver
Index Margin
	 	 	0.500	%	 	 	0.250	%	 	 	0.000	%	 	 	-0.250	%
	Applicable Revolver
LIBOR Margin
	 	 	1.750	%	 	 	1.500	%	 	 	1.250	%	 	 	1.000	%
	Applicable Revolver BA
Margin
	 	 	1.750	%	 	 	1.500	%	 	 	1.250	%	 	 	1.000	%
	Applicable L/C Margin
	 	 	1.750	%	 	 	1.500	%	 	 	1.250	%	 	 	1.000	%
	Applicable Unused Line
Fee Margin
	 	 	0.250	%	 	 	0.250	%	 	 	0.375	%	 	 	0.375	%

     All adjustments in the Applicable Margins after April 1, 2007 shall be implemented
quarterly on a prospective basis, for each calendar month commencing at least 5 days after the date
of delivery to Lenders of the quarterly unaudited or annual audited (as applicable) Financial
Statements evidencing the need for an adjustment. Concurrently with the delivery of the Compliance
Certificate, Borrower Representative shall deliver to Agent and Lenders a certificate, signed by
its chief financial officer or treasurer, setting forth in reasonable detail the basis for the
continuance of, or any change in, the Applicable Margins. Failure to deliver the Compliance
Certificate within 5 days of the required date of delivery shall, in addition to any other remedy
provided for in this Agreement, result in an increase in the Applicable Margins to the highest
level set forth in the foregoing grid, until the first day of the first calendar month following
the delivery of a Compliance Certificate demonstrating that such an increase is not required. If a
Default or an Event of Default has occurred and is continuing at the time any reduction in the
Applicable Margins is to be implemented, that reduction shall be deferred until the first day of
the first calendar month following the date on which such Default or Event of Default is waived or
cured.

     (b) If any payment on any Loan becomes due and payable on a day other than a Business Day, the
maturity thereof will be extended to the next succeeding Business Day (except as set forth in the
definition of LIBOR Period or BA Period) and, with respect to payments of principal, interest
thereon shall be payable at the then applicable rate during such extension.

     (c) All computations of Fees calculated on a per annum basis and interest shall be made by
Agent or Canadian Agent on the basis of a 360-day year, in each case for the actual number of days
occurring in the period for which such interest and Fees are payable. The Index Rate is a floating
rate determined for each day. Each determination by Agent or Canadian Agent of an interest rate
and Fees hereunder shall be final, binding and conclusive on Borrowers, absent manifest error.

     (d) So long as an Event of Default has occurred and is continuing under Section 8.1
(a), (h) or (i), or so long as any other Default or Event of Default has
occurred and is continuing and at the election of Agent (or upon the written request of Requisite
Lenders) confirmed by written notice from Agent to Borrower Representative, the interest rates
applicable to the Loans and the Letter of Credit Fees shall be increased by two percentage points
(2%) per annum above the rates of interest or the rate of such Fees otherwise applicable hereunder

13

 

(“Default Rate”), and all outstanding Obligations shall bear interest at the Default Rate
applicable to such Obligations. Interest and Letter of Credit Fees at the Default Rate shall accrue
from the initial date of such Default or Event of Default until that Default or Event of Default is
cured or waived and shall be payable upon demand.

     (e) Subject to the conditions precedent set forth in Section 2.2, Borrower
Representative shall have the option to (i) request that any Revolving Credit Advance be made as a
LIBOR Loan or a BA Rate Loan, (ii) convert at any time all or any part of outstanding Loans (other
than the Swing Line Loan) from Index Rate Loans to LIBOR Loans or BA Rate Loans, (iii) convert any
LIBOR Loan or a BA Rate Loan to an Index Rate Loan, subject to payment of LIBOR breakage costs or
BA breakage costs in accordance with Sections 1.13(b) and 1.13(c), respectively if
such conversion is made prior to the expiration of the LIBOR Period or BA Period
applicable thereto, or (iv) continue all or any portion of any Loan (other than the Swing Line
Loan) as a LIBOR Loan or a BA Rate Loan upon the expiration of the applicable LIBOR Period or BA
Period and the succeeding LIBOR Period or BA Period of that continued Loan shall commence on the
first day after the last day of the LIBOR Period or BA Period of the Loan to be continued. Any
Loan or group of Loans having the same proposed LIBOR Period to be made or continued as, or
converted into, a LIBOR Loan must be in a minimum amount of $5,000,000 and integral multiples of
$1,000,000 in excess of such amount. Any Loan or group of Loans having the same proposed BA Period
to be made or continued as, or converted into, a BA Rate Loan must be in a minimum amount of
CD1,000,000 and integral multiples of CD500,000 in excess of such amount. Any such election must
be made by 12:00 noon (New York time) on the 3rd Business Day prior to (1) the date of any proposed
Advance which is to bear interest at the LIBOR Rate or BA Rate, (2) the end of each LIBOR Period
with respect to any LIBOR Loans to be continued as such and the end of each BA Period with respect
to any BA Rate Loans to be continued as such, or (3) the date on which Borrower Representative
wishes to convert any Index Rate Loan to a LIBOR Loan for a LIBOR Period or to a BA Rate Loan for a
BA Period designated by Borrower Representative in such election. If no election is received with
respect to a LIBOR Loan or BA Rate Loan by 12:00 noon (New York time) on the 3rd Business Day prior
to the end of the LIBOR Period or BA Period with respect thereto (or if a Default or an Event of
Default has occurred and is continuing or the additional conditions precedent set forth in
Section 2.2 shall not have been satisfied), that LIBOR Loan or BA Rate Loan shall be
converted to an Index Rate Loan at the end of its LIBOR Period or BA Period respectively. Borrower
Representative must make such election by notice to Agent (and to Canadian Agent if Canadian Loans
are involved) in writing, by telecopy or overnight courier. In the case of any conversion or
continuation, such election must be made pursuant to a written notice (a “Notice of
Conversion/Continuation”) in the form of Exhibit 1.5(e).

     (f) Notwithstanding anything to the contrary set forth in this Section 1.5, if a court
of competent jurisdiction determines in a final order that the rate of interest payable hereunder
with respect to the US Obligations exceeds the highest rate of interest permissible under
applicable law (the “Maximum Lawful Rate”), then so long as the Maximum Lawful Rate would
be so exceeded, the rate of interest payable hereunder shall be equal to the Maximum Lawful Rate;
provided, however, that if at any time thereafter the rate of interest payable
hereunder is less than the Maximum Lawful Rate, US Borrowers shall continue to pay interest
hereunder at the applicable Maximum Lawful Rate until such time as the total interest received

14

 

by
Agent, on behalf of Lenders, is equal to the total interest that would have been received had the
interest rate payable hereunder been (but for the operation of this paragraph) the interest rate
payable since the Closing Date as otherwise provided in this Agreement. Thereafter, interest
hereunder shall be paid at the rate(s) of interest and in the manner provided in Sections
1.5(a) through (e), unless and until the rate of interest again exceeds the Maximum Lawful
Rate, and at that time this paragraph shall again apply. In no event shall the total interest
received by any Lender pursuant to the terms hereof exceed the amount that such Lender could
lawfully have received had the interest due hereunder been calculated for the full term hereof at
the Maximum Lawful Rate. If the Maximum Lawful Rate is calculated pursuant to this paragraph, such
interest shall be calculated at a daily rate equal to the Maximum Lawful Rate divided by the number
of days in the year in which such calculation is made. If, notwithstanding the provisions of this
Section 1.5(f), a court of competent jurisdiction shall finally determine that a
Lender has received interest hereunder in excess of the Maximum Lawful Rate, Agent shall, to the
extent permitted by applicable law, promptly apply such excess in the order specified in
Section 1.11 and thereafter shall refund any excess to Borrower or as a court of competent
jurisdiction may otherwise order.

     (g) If any provision of this Agreement or any of the other Loan Documents would obligate
Canadian Borrowers to make any payment of interest under the Canadian Obligations or other amount
payable to any Canadian Lender in an amount or calculated at a rate which would be prohibited by
law or would result in a receipt by that Canadian Lender of interest with respect to the Canadian
Obligations at a criminal rate (as such term is construed under the Criminal Code (Canada)) then,
notwithstanding such provision, such amount or rates shall be deemed to have been adjusted with
retroactive effect to the maximum amount or rate of interest, as the case may be, as would not be
so prohibited by law or so result in a receipt by that Canadian Lender of interest with respect to
the Canadian Obligations at a criminal rate, such adjustment to be effected, to the extent
necessary, as follows: (1) firstly, by reducing the amount or rates of interest required to be
paid to the affected Canadian Lenders under this Section 1.5; and (2) thereafter, by
reducing any fees, commissions, premiums and other amounts required to be paid to the affected
Canadian Lender which would constitute interest under the Canadian Obligations for purposes of
Section 347 of the Criminal Code (Canada). Notwithstanding the foregoing, and after giving effect
to all adjustments contemplated thereby, if any Canadian Lender shall have received an amount in
excess of the maximum permitted by that section of the Criminal Code (Canada), then Canadian
Borrowers shall be entitled, by notice in writing to the affected Canadian Lender, to obtain
reimbursement from that Canadian Lender in an amount equal to such excess, and pending such
reimbursement, such amount shall be deemed to be an amount payable by that Canadian Lender to
Canadian Borrowers. Any amount or rate of interest with respect to the Canadian Obligations
referred to in this Section 1.5(g) shall be determined in accordance with generally
accepted actuarial practices and principles as an effective annual rate of interest over the term
that any Canadian Loan remains outstanding on the assumption that any charges, fees or expenses
that fall within the meaning of “interest” (as defined in the Criminal Code (Canada))
shall, if they relate to a specific period of time, be pro-rated over that period of time and
otherwise be pro-rated over the period from the Closing Date to the Termination Date (with
reference to the Canadian Obligations) and, in the event of a dispute, a certificate of a Fellow of
the Canadian Institute of Actuaries appointed by Canadian Agent shall be conclusive for the
purposes of such determination.

15

 

     (h) Interest Act (Canada). For purposes of disclosure pursuant to the Interest Act
(Canada), the annual rates of interest or fees to which the rates of interest or fees provided in
this Agreement and the other Loan Documents for the Canadian Obligations (as stated herein or
therein, as applicable, to be computed on the basis of a 360 or 365 day year or any other period of
time less than a calendar year) are equivalent to the rates so determined multiplied by the actual
number of days in the applicable calendar year and divided by 360, 365 or such other period of
time, respectively.

     1.6 Eligible Accounts.

     All of the Accounts owned by WESCO DC LP and the CSC Borrowers and reflected in the most
recent Borrowing Base Certificate delivered by Borrower Representative on behalf of the applicable
Borrower Group (i.e., US Borrowers or Canadian Borrowers) to Agent shall be “Eligible
Accounts” for purposes of this Agreement, except any Account to which any of the exclusionary
criteria set forth below applies. Agent shall have the right to establish, modify or eliminate
Reserves against Eligible Accounts from time to time in its reasonable credit judgment. In
addition, Agent reserves the right, at any time and from time to time after the Closing Date, to
adjust any of the criteria set forth below, to establish new criteria and to adjust advance rates
with respect to Eligible Accounts, in its reasonable credit judgment, subject to the approval of
Supermajority Lenders in the case of adjustments, new criteria, or changes in advance rates or the
elimination of Reserves imposed as of the Closing Date which have the effect of making more credit
available (it being understood that Agent may in its reasonable credit judgment eliminate Reserves
established by it in its reasonable credit judgment after the Closing Date without the necessity of
obtaining the approval of Supermajority Lenders or Requisite Lenders). Borrowers and the other
Credit Parties hereby acknowledge and agree that only Accounts owned by WESCO DC LP and the CSC
Borrowers, and no Accounts owned by any other Borrower or any other Credit Party, may constitute
Eligible Accounts. Eligible Accounts shall not include any Account of WESCO DC LP or the CSC
Borrowers:

     (a) that does not arise from the sale of goods or the performance of services by WESCO DC LP
or the CSC Borrowers in the ordinary course of its business;

     (b) (i) upon which WESCO DC LP’s or the applicable CSC Borrower’s right to receive payment is
not absolute or is contingent upon the fulfillment of any condition whatsoever or (ii) as to which
WESCO DC LP or the applicable CSC Borrower is not able to bring suit or otherwise enforce its
remedies against the Account Debtor through judicial process, or (iii) if the Account represents a
progress billing consisting of an invoice for goods sold or used or services rendered pursuant to a
contract under which the Account Debtor’s obligation to pay that invoice is subject to WESCO DC
LP’s or the applicable CSC Borrower’s completion of further performance under such contract or is
subject to the equitable lien of a surety bond issuer;

     (c) to the extent that any defense, counterclaim, setoff or dispute is asserted as to such
Account;

     (d) that is not a true and correct statement of bona fide indebtedness incurred in the amount
of the Account for merchandise sold to or services rendered and accepted by the applicable Account
Debtor;

16

 

     (e) with respect to which an invoice, reasonably acceptable to Agent in form and substance,
has not been sent to the applicable Account Debtor;

     (f) that (i) is not owned by WESCO DC LP or the CSC Borrowers or (ii) is subject to any right,
claim, security interest or other interest of any other Person, other than Liens
in favor of the Applicable Agent, on behalf of itself and Lenders, and Prior Claims that are
unregistered and that secure amounts that are not yet due and payable;

     (g) that arises from a sale to any director, officer, other employee or Affiliate of any
Credit Party, or to any entity that has any common officer or director with any Credit Party;

     (h) that is the obligation of an Account Debtor that is the United States government or a
political subdivision thereof, or any state, county or municipality or department, agency or
instrumentality thereof or that is the Canadian government (Her Majesty in Right of Canada) or a
political subdivision thereof, or a department, agency or instrumentality thereof unless Agent, in
its sole discretion, has agreed to the contrary in writing and WESCO DC LP or the CSC Borrowers, as
the case may be and if necessary or desirable, has complied with respect to such obligation with
the Federal Assignment of Claims Act of 1940 (for Account Debtors that are United States government
or a political subdivision thereof) or any applicable state, county or municipal law restricting
the assignment thereof (for Account Debtors that are a state, county, or municipality or
department, agency or instrumentality thereof) or WESCO DC LP or the CSC Borrowers, as the case may
be and if necessary or desirable, has complied with the Financial Administration Act (Canada) or
any applicable provincial or territorial statute or municipal ordinance of similar purpose with
respect to such obligation, as applicable, or any applicable statutes or ordinances of similar
purpose, with respect to such obligation, as applicable;

     (i) that is the obligation of an Account Debtor located in a country other than the United
States (including all fifty states) or Canada unless payment thereof is assured by a letter of
credit assigned and delivered to Agent, satisfactory to Agent as to form, amount and issuer; or is
backed by credit insurance or a bank guaranty acceptable to Agent in all respects.

     (j) to the extent WESCO DC LP, the CSC Borrowers, any other Borrower, any other Credit Party
or any Subsidiary thereof is liable for goods sold or services rendered by the applicable Account
Debtor to WESCO DC LP, the CSC Borrowers, any other Borrower, any other Credit Party or any
Subsidiary thereof but only to the extent of the potential offset;

     (k) that arises with respect to goods that are delivered on a bill-and-hold, cash-on-delivery
basis or placed on consignment, guaranteed sale or other terms by reason of which the payment by
the Account Debtor is or may be conditional;

     (l) that is in default; provided, that, without limiting the generality of the
foregoing, an Account shall be deemed in default upon the occurrence of any of the following:

          (i) the Account is not paid within the earlier of: 60 days following its due date or 150 days
following its original invoice date; provided, that, (x) the aggregate amount of
all such Accounts less than 150 days past their original invoice date but more than 90 days

17

 

past
their original invoice date, which shall comprise Eligible Accounts plus (y) the aggregate amount
of all Accounts less than 150 days past their original invoice date but more than 90 days past
their original invoice date, which shall comprise Eligible Securitization Receivables, shall not
exceed for the sum of (x) plus (y), an amount equal to 8% of the sum of total Eligible Accounts and
Eligible Securitization Receivables (the “8% Cap”) in the aggregate at any time during the
term of this Agreement (and, in the event that the sum of (x) plus (y) shall exceed the 8% Cap,
then the entire amount pursuant to clause (y), up to a maximum of the 8% Cap shall be included
(i.e., the excess amount shall be deducted from clause (x) to achieve an amount equal to
the 8% Cap)).

          (ii) the Account Debtor obligated upon such Account suspends business, makes a general
assignment for the benefit of creditors or fails to pay its debts generally as they come due; or

          (iii) a petition is filed by or against any Account Debtor obligated upon such Account under
any bankruptcy law or any other United States federal or state or, with respect to Canada, Solvency
Law or any other foreign receivership, insolvency relief or other law or laws for the relief of
debtors;

     (m) that is the obligation of an Account Debtor if 50% or more of the Dollar amount of all
Accounts owing by that Account Debtor are ineligible under the other criteria set forth in this
Section 1.6 or in the definition of Eligible Securitization Receivables;

     (n) as to which the Applicable Agent’s Lien thereon, on behalf of itself and Lenders, is not a
first priority perfected Lien, subject only to Prior Claims that are unregistered and that secure
amounts that are not yet due and payable;

     (o) as to which any of the representations or warranties in the Loan Documents are untrue;

     (p) to the extent such Account is evidenced by a judgment, Instrument or Chattel Paper;

     (q) to the extent such Account exceeds any credit limit established by Agent, in its
reasonable credit judgment;

     (r) to the extent that such Account, together with all other Accounts owing by such Account
Debtor and its Affiliates as of any date of determination exceed 10% of all Eligible Accounts;

     (s) that is payable in any currency other than Dollars or Canadian Dollars (to the extent
properly converted into Dollars in the applicable Borrowing Base Certificate in accordance
herewith);

     (t) to the extent such Account includes goods and services or harmonized sales or other sales
taxes; or

18

 

     (u) that is otherwise unacceptable to Agent in its reasonable credit judgment.

     Notwithstanding the foregoing, from and after such time as the Accounts of the CSC Borrowers are
qualified and sold under the Receivables Purchase Agreement, all Accounts of the CSC Borrowers
shall cease to be, and shall cease to constitute, Eligible Accounts for any purpose of
this Agreement; provided, further, that, as a precondition to any such
qualification and sale of the Accounts of the CSC Borrowers under the Receivables Purchase
Agreement, the Intercreditor Agreement shall be amended, in form and substance satisfactory to
Agent and Borrowers, to reflect the addition of the Accounts of any of the CSC Borrowers to the
securitization governed by the Receivables Purchase Agreement and Receivables Sale Agreement.

     1.7 Eligible Inventory.

     All of the inventory owned by the Borrowers and reflected in the most recent Borrowing Base
Certificate delivered by Borrower Representative on behalf of the applicable Borrower Group (i.e.,
US Borrowers or Canadian Borrowers) to Agent shall be “Eligible Inventory” for purposes of this
Agreement, except any Inventory to which any of the exclusionary criteria set forth below applies.
Agent shall have the right to establish, modify, or eliminate Reserves against Eligible Inventory
from time to time in its reasonable credit judgment. In addition, Agent reserves the right, at any
time and from time to time after the Closing Date, to adjust any of the criteria set forth below,
to establish new criteria and to adjust advance rates with respect to Eligible Inventory in its
reasonable credit judgment, subject to the approval of Supermajority Lenders in the case of
adjustments, new criteria, changes in advance rates or the elimination of Reserves imposed as of
the Closing Date which have the effect of making more credit available (it being understood that
Agent may in its reasonable credit judgment eliminate Reserves established by it in its reasonable
credit judgment after the Closing Date without the necessity of obtaining the approval of
Supermajority Lenders or Requisite Lenders). The other Credit Parties hereby acknowledge and agree
that only Inventory owned by the Borrowers, and no Inventory owned by any other Credit Party, may
constitute Eligible Inventory. Eligible Inventory shall not include any Inventory of any Borrower
that:

     (a) is not owned by such Borrower free and clear of all Liens and rights of any other Person
(including the rights of a purchaser that has made progress payments and the rights of a surety
that has issued a bond to assure such Borrower’s performance with respect to that Inventory),
except the Liens in favor of Agent, on behalf of itself and Lenders, and in the case of Inventory
of any Canadian Borrower, Prior Claims that are unregistered and that secure amounts that are not
yet due and payable;

     (b) (i) other than as provided in clause (vi) below, is not located on premises owned,
leased or rented by such Borrower and set forth in Disclosure Schedule (3.2) or (ii) is
stored at a leased location, unless Agent has given its prior consent thereto and unless (x) a
satisfactory landlord waiver has been delivered to the Applicable Agent or (y) Reserves, if
determined in Agent’s reasonable credit judgment, satisfactory to the Applicable Agent have been
established with respect thereto, (iii) is stored with a bailee or warehouseman unless a
satisfactory, acknowledged bailee letter has been received by the Applicable Agent or, if
determined in Agent’s reasonable credit judgment, Reserves satisfactory to Agent have been
established with respect thereto, or (iv) is located at an owned location subject to a mortgage (or

19

 

similar lien under applicable law) in favor of a lender other than any Agent, unless a satisfactory
mortgagee waiver has been delivered to the Applicable Agent or Reserves satisfactory to Agent have
been established with respect thereto, or (v) is located at any site if the aggregate book value of
Inventory at any such location is less than U.S. $100,000 (or the Dollar Equivalent Amount
thereof), or (vi) is located on premises owned, leased or rented by a customer of any
Borrower, unless Agent has given its prior consent thereto, such Inventory of such Borrower is
clearly segregated from all Inventory of such customer, all UCC filings deemed necessary or
desirable by Agent have been made, and a satisfactory collateral access agreement has been
delivered to the Applicable Agent by such customer;

     (c) is placed on consignment, except as expressly provided in Section 1.7(b)(vi) (and
subject to compliance with all of the requirements of Section 1.7(b)(vi)), is located at
any customer location, or is in transit, to the extent the value of such Inventory consists of
costs associated with “freight-in” charges, if any, except for Inventory in transit between
domestic or Canadian locations of Credit Parties as to which the Applicable Agent’s Liens have been
perfected at origin and destination;

     (d) is covered by a negotiable document of title, unless such document has been delivered to
the Applicable Agent with all necessary endorsements, free and clear of all Liens except those in
favor of either Agent and Lenders and, in the case of any Canadian Borrower, Prior Claims that are
unregistered and that secure amounts that are not yet due and payable;

     (e) is excess, obsolete, unsalable, shopworn, seconds, damaged or unfit for sale;

     (f) consists of display items or packing or shipping materials, manufacturing supplies,
work-in-process Inventory or replacement parts;

     (g) consists of goods which have been returned by the buyer;

     (h) is not of a type held for sale in the ordinary course of such Borrower’s business;

     (i) is not subject to a first priority lien in favor of the Applicable Agent on behalf of
itself and Lenders subject to Permitted Encumbrances;

     (j) breaches any of the representations or warranties pertaining to Inventory set forth in the
Loan Documents;

     (k) consists of any costs associated with “freight-in” charges, warehouseman’s salaries or any
other item classified as “full absorption”;

     (l) consists of Hazardous Materials or goods that can be transported or sold only with
licenses that are not readily available;

     (m) is not covered by casualty insurance reasonably acceptable to Agent;

20

 

     (n) the value of which has not been converted into Dollars in the applicable Borrowing Base
Certificate in accordance herewith; or

     (o) is otherwise unacceptable to Agent in its reasonable credit judgment.

     1.8 Cash Management Systems. On or prior to the Closing Date, WESCO Distribution and
WESCO DC LP will each establish and will each maintain until the Termination Date, the cash
management systems described in Annex C (the “Cash Management Systems”).

     1.9 Fees.

     (a) Borrowers shall pay to GE Capital, individually, the Fees specified in that certain fee
letter of even date herewith between Borrower Representative and GE Capital (the “GE Capital
Fee Letter”), at the times specified for payment therein.

     (b) On the Closing Date, Borrowers shall pay to the US Agent an Amendment Fee in the amount of
$375,000 to be distributed pro rata among the US Lenders. In addition, on the Closing Date,
Canadian Borrowers shall pay, or cause to be paid, to the Canadian Agent an Amendment Fee in the
amount of $65,000 to be distributed pro rata among the Canadian Lenders.

     (c) (i) As additional compensation for the US Lenders, US Borrowers shall pay to Agent, for
the ratable benefit of US Lenders, in arrears, on the first Business Day of each month prior to the
Commitment Termination Date and on the Commitment Termination Date, a Fee for US Borrowers’ non-use
of available funds in an amount equal to the Applicable Unused Line Fee Margin per annum
(calculated on the basis of a 360 day year for actual days elapsed) multiplied by the difference
between (x) the Maximum US Amount (as it may be reduced from time to time) and (y) the average for
the period of the daily closing balances of the aggregate US Revolving Loan and the US Swing Line
Advances outstanding during the period for which such Fee is due.

          (ii) As additional compensation for the Canadian Lenders, Canadian Borrowers shall pay to
Canadian Agent, for the ratable benefit of Canadian Lenders, in arrears, on the first Business Day
of each month prior to the Commitment Termination Date and on the Commitment Termination Date, a
Fee for Canadian Borrowers’ non-use of available funds in an amount equal to the Applicable Unused
Line Fee Margin per annum (calculated on the basis of a 360 day year for actual days elapsed)
multiplied by the difference between (x) the Maximum Canadian Amount (as it may be reduced from
time to time) and (y) the average for the period of the daily closing balances of the aggregate
Canadian Revolving Credit Advances and the Canadian Swing Line Advances outstanding during the
period for which such Fee is due.

     (d) US Borrowers shall pay to Agent, for the ratable benefit of US Lenders, the Letter of
Credit Fee, in respect of US Letters of Credit as provided in Annex B, and Canadian
Borrowers shall pay to Canadian Agent, for the ratable benefit of Canadian Lenders, the Letter of
Credit Fee in respect of Canadian Letters of Credit as provided in Annex B.

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     1.10 Receipt of Payments.

     US Borrowers shall make each payment under this Agreement not later than 2:30 p.m. (New York
time) on the day when due in immediately available funds in Dollars to the US Collection Account.
Canadian Borrowers shall make each payment under this Agreement not later than 2:30 p.m. (New York
time) on the day when due in immediately available funds in
Canadian Dollars to the Canadian Collection Account. For purposes of computing interest and
Fees and determining Borrowing Availability as of any date, all payments shall be deemed received
on the Business Day on which immediately available funds therefor are received in the applicable
Collection Account prior to 2:30 p.m. (New York time). Payments received after 2:30 p.m. New York
time on any Business Day or on a day that is not a Business Day shall be deemed to have been
received on the following Business Day. If Agent receives any payment from or on behalf of any
Credit Party in a currency other than the currency in which an Obligation payable is denominated,
Agent may convert the payment (including the monetary proceeds of realization upon any Collateral
and any funds then held in a cash collateral account) into Dollars at the exchange rate that Agent
would be prepared to sell the currency received in New York, New York on the Business Day
immediately preceding the date of actual payment. The Obligations shall be satisfied only to the
extent of the amount actually received by Agent upon such conversion.

     1.11 Application and Allocation of Payments.

     (a) So long as no Default or Event of Default has occurred and is continuing, (i) payments
consisting of proceeds of Accounts or Inventory received in the ordinary course of business shall
be applied, in the case of receipt by or on behalf of any US Borrower, first, to the US Swing Line
Loan and, second, to the US Revolving Loan, and, in the case of receipt by or on behalf of any
Canadian Borrower, first to the Canadian Swing Line Advances and, second, to the Canadian Revolving
Loan; (ii) payments matching specific scheduled payments then due shall be applied to those
scheduled payments; (iii) voluntary prepayments shall be applied as determined by Borrower, subject
to the provisions of Section 1.3(a); and (iv) mandatory prepayments shall be applied as set
forth in Sections 1.3(b), (c), (d) and (f). All payments and prepayments applied to a
particular Loan shall be applied ratably to the portion thereof held by each US Lender as
determined by its Pro Rata Share thereof and held by each Canadian Lender as determined by its Pro
Rata Share thereof. As to any other payment, and as to all payments made when a Default or Event
or Default has occurred and is continuing or following the Commitment Termination Date, Borrowers
hereby irrevocably waive the right to direct the application of any and all payments received from
or on behalf of Borrowers, and Borrowers hereby irrevocably agree that Agent shall have the
continuing exclusive right to apply any and all such payments in respect of the Obligations then
due and payable in the following order: (1) to Fees and Agents’ expenses reimbursable hereunder;
(2) to interest on the Swing Line Loan; (3) to principal payments on the Swing Line Loan; (4) to
interest on the Revolving Loan; (5) to principal payments on the Revolving Loan; (6) to provide
cash collateral for Letter of Credit Obligations in the manner described in Annex B and (7)
to all other Obligations including expenses of Lenders to the extent reimbursable under Section
11.3; provided, however, that in no event shall any such payments applicable to
a Canadian Borrower or other Canadian Credit Party be applied to any US Obligations.

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     (b) The Applicable Agent is authorized to, and at its sole election may, charge to the
Revolving Loan balance on behalf of Borrowers under the applicable Facilities and cause to be paid
all Fees, expenses, Charges, costs (including insurance premiums in accordance with Section
5.4(a)) and interest and principal, other than principal of the Revolving Loan under the
applicable Facilities, owing by the applicable Borrower under this Agreement or any of the other
Loan Documents if and to the extent such Borrowers fail to pay promptly any such amounts as
and when due, even if the amount of such charges would exceed Borrowing Availability at such time.
At the Applicable Agent’s option and to the extent permitted by law, any charges so made shall
constitute part of the Revolving Loan under the applicable Facilities hereunder to which such
charges relate.

     1.12 Loan Account and Accounting.

     Each Agent shall maintain a loan account (the “US Loan Account”, in the case of such
account maintained by the Agent, and the “Canadian Loan Account”, in the case of such
account maintained by the Canadian Agent, and “Loan Account” means either or both of them,
as the context permits) on its books to record: all Advances, all payments made by Borrowers, and
all other debits and credits as provided in this Agreement with respect to the Loans or any other
Obligations, in each case, relating to the applicable Facilities being administered by the
Applicable Agent. All entries in the applicable Loan Account shall be made in accordance with the
Applicable Agent’s customary accounting practices as in effect from time to time. The balance in
the Loan Account, as recorded on Agent’s most recent printout or other written statement, shall,
absent demonstrable error, be presumptive evidence of the amounts due and owing to the Agent and US
Lenders by US Borrowers, in the case of the US Loan Account, and to the Canadian Agent and the
Canadian Lenders, in the case of the Canadian Loan Account; provided that any failure to so
record or any error in so recording shall not limit or otherwise affect the applicable Borrower’s
duty to pay the Obligations. Each Agent shall render to Borrower Representative a monthly
accounting of transactions with respect to the US Loans and Canadian Loans setting forth the
balance of the US Loan Account and the Canadian Loan Account for the immediately preceding month.
Unless Borrower Representative notifies Agent in writing of any objection to any such accounting
(specifically describing the basis for such objection), within 30 days after the date thereof, each
and every such accounting shall, absent demonstrable error, be deemed final, binding and conclusive
on Borrower(s) in all respects as to all matters reflected therein. Only those items expressly
objected to in such notice shall be deemed to be disputed by the applicable Borrower(s).
Notwithstanding any provision herein contained to the contrary, any Lender may elect (which
election may be revoked) to dispense with the issuance of Notes to that Lender and may rely on the
applicable Loan Account as evidence of the amount of Obligations from time to time owing to it.

     1.13 Indemnity.

     (a) Each Credit Party that is a signatory hereto shall jointly and severally indemnify and
hold harmless each Agent, Lenders and their respective Affiliates, and each such Person’s
respective officers, directors, employees, attorneys, agents and representatives (each, an
“Indemnified Person”), from and against any and all suits, actions, proceedings, claims,
damages, losses, liabilities and expenses (including reasonable attorneys’ fees and disbursements

23

 

and other costs of investigation or defense, including those incurred upon any appeal) that may be
instituted or asserted against or incurred by any such Indemnified Person as the result of credit
having been extended, suspended or terminated under this Agreement and the other Loan Documents and
the administration of such credit, and in connection with or arising out of the transactions
contemplated hereunder and thereunder and any actions or failures to act in connection therewith,
including any and all Environmental Liabilities and legal costs and expenses arising out of or
incurred in connection with disputes between or among any parties to any of the
Loan Documents (collectively, “Indemnified Liabilities”); provided, that no such
Credit Party shall be liable for any indemnification to an Indemnified Person to the extent that
any such suit, action, proceeding, claim, damage, loss, liability or expense results from that
Indemnified Person’s gross negligence or willful misconduct. NO INDEMNIFIED PERSON SHALL BE
RESPONSIBLE OR LIABLE TO ANY OTHER PARTY TO ANY LOAN DOCUMENT, ANY SUCCESSOR, ASSIGNEE OR THIRD
PARTY BENEFICIARY OF SUCH PERSON OR ANY OTHER PERSON ASSERTING CLAIMS DERIVATIVELY THROUGH SUCH
PARTY, FOR INDIRECT, PUNITIVE, EXEMPLARY OR CONSEQUENTIAL DAMAGES WHICH MAY BE ALLEGED AS A RESULT
OF CREDIT HAVING BEEN EXTENDED, SUSPENDED OR TERMINATED UNDER ANY LOAN DOCUMENT OR AS A RESULT OF
ANY OTHER TRANSACTION CONTEMPLATED HEREUNDER OR THEREUNDER.

     (b) To induce Lenders to provide the LIBOR Rate option on the terms provided herein, if (i)
any LIBOR Loans are repaid in whole or in part prior to the last day of any applicable LIBOR Period
(whether that repayment is made pursuant to any provision of this Agreement or any other Loan
Document or occurs as a result of acceleration, by operation of law or otherwise); (ii) any
Borrower shall default in payment when due of the principal amount of or interest on any LIBOR
Loan; (iii) any Borrower shall refuse to accept any borrowing of, or shall request a termination of
any borrowing, conversion into or continuation of LIBOR Loans after Borrower Representative has
given notice requesting the same in accordance herewith; or (iv) any Borrower shall fail to make
any prepayment of a LIBOR Loan after Borrower Representative has given a notice thereof in
accordance herewith, then Borrowers shall jointly and severally indemnify and hold harmless each
Lender from and against all losses, costs and expenses resulting from or arising from any of the
foregoing provided that the Canadian Borrowers shall be obligated to indemnify any Lender with
respect to only such losses, costs and expenses in respect of the Canadian Obligations. Such
indemnification shall include any loss (including loss of margin) or expense arising from the
reemployment of funds obtained by it or from fees payable to terminate deposits from which such
funds were obtained. For the purpose of calculating amounts payable to a Lender under this
subsection, each Lender shall be deemed to have actually funded its relevant LIBOR Loan through the
purchase of a deposit bearing interest at the LIBOR Rate in an amount equal to the amount of that
LIBOR Loan and having a maturity comparable to the relevant LIBOR Period; provided, that
each Lender may fund each of its LIBOR Loans in any manner it sees fit, and the foregoing
assumption shall be utilized only for the calculation of amounts payable under this subsection.
This covenant shall survive the termination of this Agreement and the payment of the Notes and all
other amounts payable hereunder. As promptly as practicable under the circumstances, each Lender
shall provide Borrower Representative with its written calculation of all amounts payable pursuant
to this Section 1.13(b), and such calculation shall be binding on the parties hereto unless
Borrower

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Representative shall object in writing within 10 Business Days of receipt thereof,
specifying the basis for such objection in detail.

     (c) To induce Lenders to provide the BA Rate option on the terms provided herein, if (i) any
BA Rate Loans are repaid in whole or in part prior to the last day of any applicable BA Period
(whether that repayment is made pursuant to any provision of this
Agreement or any other Loan Document or occurs as a result of acceleration, by operation of
law or otherwise); (ii) any Borrower shall default in payment when due of the principal amount of
or interest on any BA Rate Loan; (iii) any Canadian Borrower shall refuse to accept any borrowing
of, or shall request a termination of, any borrowing of, conversion into or continuation of, BA
Rate Loans after Borrower Representative has given notice requesting the same in accordance
herewith; or (iv) any Canadian Borrower shall fail to make any prepayment of a BA Rate Loan after
Borrower Representative has given a notice thereof in accordance herewith, then Borrowers shall
jointly and severally indemnify and hold harmless each Lender from and against all losses, costs
and expenses resulting from or arising from any of the foregoing. Such indemnification shall
include any loss (including loss of margin) or expense arising from the reemployment of funds
obtained by it or from fees payable to terminate deposits from which such funds were obtained. For
the purpose of calculating amounts payable to a Lender under this subsection, each Lender shall be
deemed to have actually funded its relevant BA Rate Loan through the purchase of a deposit bearing
interest at the BA Rate in an amount equal to the amount of that BA Rate Loan and having a maturity
comparable to the relevant BA Period; provided, that each Lender may fund each of its BA
Rate Loans in any manner it sees fit, and the foregoing assumption shall be utilized only for the
calculation of amounts payable under this subsection. This covenant shall survive the termination
of this Agreement and the payment of the Notes and all other amounts payable hereunder. As
promptly as practicable under the circumstances, each Lender shall provide Borrower Representative
with its written calculation of all amounts payable pursuant to this Section 1.13(c), and
such calculation shall be binding on the parties hereto unless Borrower
Representative shall object
in writing within ten (10) Business Days of receipt thereof, specifying the basis for such
objection in detail.

     1.14 Access.

     Each Credit Party that is a party hereto shall, during normal business hours, from time to
time upon three (3) Business Days prior notice to the Borrower Representative (attention:
Treasurer); provided, however, that after the occurrence and during the continuance
of a Default or Event of Default, no such prior notice shall be required; as frequently as each
Agent determines to be appropriate; (a) provide each Agent and any of its officers, employees and
agents access to its properties, facilities, advisors and employees (including officers) of each
Credit Party and to the Collateral, (b) permit each Agent, and any of its officers, employees and
agents, to inspect, audit and make extracts from any Credit Party’s books and records, and (c)
permit each Agent, and its officers, employees and agents, to inspect, review, evaluate and make
test verifications and counts of the Accounts and Inventory of any Credit Party and other
Collateral of any Credit Party. Absent a Default or Event of Default, Borrowers shall not be
required to pay for (i) more than one (1) inventory appraisal per year or (ii) more than two (2)
collateral audits per year. In addition, (i) if Borrowing Availability is less than $65,000,000
and the Accounts of the CSC Borrowers then constitute Eligible Accounts or (ii) if the Accounts of

25

 

the CSC Borrowers constitute Eligible Accounts on the 180th day following the Closing Date
(i.e. on or before such 180th day, the Accounts of the CSC Borrowers shall not have been
qualified and sold under the Receivables Purchase Agreement (as contemplated by Section 5.13 of
this Agreement)), the Agent shall have the right, in its discretion, to perform a full collateral
audit of the Accounts of the CSC Borrowers, which audit shall be at the Borrower’ expense. If a
Default or Event of Default has occurred and is continuing or if access is necessary to preserve or
protect the
Collateral as determined by the Agent, in its reasonable credit judgment, each such Credit
Party shall provide such access to Agent and Canadian Agent and to each Lender at all times and
without advance notice at Borrowers’ expense. Furthermore, so long as any Event of Default has
occurred and is continuing, Borrowers shall provide Agent and Canadian Agent and each Lender with
access to its suppliers and customers. Each Credit Party shall make available to Agent and
Canadian Agent and its counsel, as quickly as is possible under the circumstances, originals or
copies of all books and records that such Agent may reasonably request. Each Credit Party shall
deliver any document or instrument necessary for Agent and Canadian Agent, as it may from time to
time request, to obtain records from any service bureau or other Person that maintains records for
such Credit Party, and shall maintain duplicate records or supporting documentation on media,
including computer tapes and discs owned by such Credit Party. Each Agent will give Lenders at
least 5 days’ prior written notice of regularly scheduled audits. Representatives of other Lenders
may accompany Agent’s or Canadian Agent’s representatives on regularly scheduled audits at no
charge to Borrowers.

     1.15 Taxes.

     (a) Any and all payments by each Borrower hereunder (including any payments made pursuant to
Section 12) or under the Notes shall be made, in accordance with this Section 1.15, free
and clear of and without deduction for any and all present or future Taxes. If any Borrower shall
be required by law to deduct any Taxes from or in respect of any sum payable hereunder (including
any payments made pursuant to Section 12) or under the Notes, (i) the sum payable shall be
increased as much as shall be necessary so that after making all required deductions (including
deductions applicable to additional sums payable under this Section 1.15) Agent or Canadian
Agent or Lenders, as applicable, receive an amount equal to the sum they would have received had no
such deductions been made, (ii) such Borrower shall make such deductions, and (iii) such Borrower
shall pay the full amount deducted to the relevant taxing or other authority in accordance with
applicable law. Within 30 days after the date of any payment of Taxes, Borrower Representative
shall furnish to Agent the original or a certified copy of a receipt evidencing payment thereof.
Agent, Canadian Agent and Lenders shall not be obligated to return or refund any amounts received
pursuant to this Section.

     (b) Each Credit Party that is a signatory hereto shall jointly and severally indemnify and,
within 10 days of demand therefor, pay Agent and Canadian Agent and each Lender for the full amount
of Taxes (including any Taxes imposed by any jurisdiction on amounts payable under this Section
1.15) paid by Agent or Canadian Agent or such Lender, as appropriate, and any liability
(including penalties, interest and expenses) arising therefrom or with respect thereto, whether or
not such Taxes were correctly or legally asserted.

26

 

     (c) Each US Lender organized under the laws of a jurisdiction outside the United States (a
“Foreign Lender”) as to which payments to be made under this Agreement or under the Notes
are exempt from United States withholding tax under an applicable statute or tax treaty shall
provide to Borrower Representative and Agent a properly completed and executed IRS Form W-8ECI or
Form W-8BEN or other applicable form, certificate or document prescribed by the IRS or the United
States certifying as to such Foreign Lender’s entitlement to such exemption (a “Certificate of
Exemption”). Any foreign Person that seeks to become a US
Lender under this Agreement shall provide a Certificate of Exemption to Borrower
Representative and Agent prior to becoming a US Lender hereunder. No foreign Person may become a
US Lender hereunder if such Person fails to deliver a Certificate of Exemption in advance of
becoming a Lender.

     1.16 Capital Adequacy; Increased Costs; Illegality.

     (a) If any Lender shall have determined that any law, treaty, governmental (or
quasi-governmental) rule, regulation, guideline or order regarding capital adequacy, reserve
requirements or similar requirements or compliance by any Lender with any request or directive
regarding capital adequacy, reserve requirements or similar requirements (whether or not having the
force of law), in each case, adopted after the Closing Date, from any central bank or other
Governmental Authority increases or would have the effect of increasing the amount of capital,
reserves or other funds required to be maintained by such Lender and thereby reducing the rate of
return on such Lender’s capital as a consequence of its obligations hereunder, then Borrowers shall
from time to time upon demand by such Lender (with a copy of such demand to the Applicable Agent)
pay to such Agent, for the account of such Lender, additional amounts sufficient to compensate such
Lender for such reduction. A certificate as to the amount of that reduction and showing the basis
of the computation thereof submitted by such Lender to Borrower Representative and to such Agent
shall, absent manifest error, be final, conclusive and binding for all purposes.

     (b) If, due to either (i) the introduction of or any change in any law or regulation (or any
change in the interpretation thereof) or (ii) the compliance with any guideline or request from any
central bank or other Governmental Authority (whether or not having the force of law), in each case
adopted after the Closing Date, there shall be any increase in the cost to any Lender of agreeing
to make or making, funding or maintaining any Loan, then Borrowers shall from time to time, upon
demand by such Lender (with a copy of such demand to Agent), pay to Agent (or Canadian Agent if in
respect of Canadian Loans) for the account of such Lender additional amounts sufficient to
compensate such Lender for such increased cost. A certificate as to the amount of such increased
cost, submitted to Borrower Representative and to Agent by such Lender, shall be conclusive and
binding on Borrower for all purposes, absent manifest error. Each Lender agrees that, as promptly
as practicable after it becomes aware of any circumstances referred to above which would result in
any such increased cost, the affected Lender shall, to the extent not inconsistent with such
Lender’s internal policies of general application, use reasonable commercial efforts to minimize
costs and expenses incurred by it and payable to it by Borrowers pursuant to this Section
1.16(b).

27

 

     (c) Notwithstanding anything to the contrary contained herein, if the introduction of or any
change in any law or regulation (or any change in the interpretation thereof) shall make it
unlawful, or any central bank or other Governmental Authority shall assert that it is unlawful, for
any Lender to agree to make or to make or to continue to fund or maintain any LIBOR Loan, then,
unless that Lender is able to make or to continue to fund or to maintain such LIBOR Loan at another
branch or office of that Lender without, in that Lender’s opinion, adversely affecting it or its
Loans or the income obtained therefrom, on notice thereof and demand therefor by such Lender to
Borrower Representative through Agent, (i) the obligation of
such Lender to agree to make or to make or to continue to fund or maintain LIBOR Loans shall
terminate and (ii) each Borrower shall forthwith prepay in full all outstanding LIBOR Loans owing
by such Borrower to such Lender, together with interest accrued thereon, unless Borrower
Representative, on behalf of such Borrower, within 5 Business Days after the delivery of such
notice and demand, converts all LIBOR Loans into Index Rate Loans.

     (d) Within 15 days after receipt by Borrower Representative of written notice and demand from
any Lender (an “Affected Lender”) for payment of additional amounts or increased costs as
provided in Sections 1.15(a), 1.16(a) or 1.16(b), Borrower Representative
may, at its option, notify Agent and such Affected Lender of its intention to replace the Affected
Lender. So long as no Default or Event of Default has occurred and is continuing, Borrower
Representative, with the consent of Agent, may obtain, at Borrowers’ expense, a replacement Lender
(“Replacement Lender”) for the Affected Lender, which Replacement Lender must be reasonably
satisfactory to Agent. If Borrowers obtain a Replacement Lender within 90 days following notice of
their intention to do so, the Affected Lender must sell and assign its Loans and Commitments to
such Replacement Lender for an amount equal to the principal balance of all Loans held by the
Affected Lender and all accrued interest and Fees with respect thereto through the date of such
sale; provided, that Borrowers shall have reimbursed such Affected Lender for the
additional amounts or increased costs that it is entitled to receive under this Agreement through
the date of such sale and assignment. Notwithstanding the foregoing, Borrowers shall not have the
right to obtain a Replacement Lender if the Affected Lender rescinds its demand for increased costs
or additional amounts within 15 days following its receipt of Borrowers’ notice of intention to
replace such Affected Lender. Furthermore, if Borrowers give a notice of intention to replace and
do not so replace such Affected Lender within 90 days thereafter, Borrowers’ rights under this
Section 1.16(d) shall terminate and Borrowers shall promptly pay all increased costs or
additional amounts demanded by such Affected Lender pursuant to Sections 1.15(a),
1.16(a) and 1.16(b).

     1.17 Single Loan.

     All Loans to each US Borrower and all of the other Obligations of each US Borrower arising
under this Agreement and the other Loan Documents shall constitute one general obligation of that
Borrower secured, until the Termination Date, by all of the Collateral of the US Borrowers. All
Loans to each Canadian Borrower and all of the other Obligations of each Canadian Borrower arising
under this Agreement and the other Loan Documents shall constitute one general obligation of that
Borrower secured, until the Termination Date, by all of the Collateral held by the Canadian
Borrowers and all of the Collateral held by the US Borrowers.

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2. CONDITIONS PRECEDENT

     2.1 Conditions to the Initial Loans.

     No Lender shall be obligated to make any Loan or incur any Letter of Credit Obligations on the
Closing Date, or to take, fulfill, or perform any other action hereunder, until the following
conditions have been satisfied or provided for in a manner satisfactory to Agents, or waived in
writing by Agents and Lenders:

     (a) Credit Agreement; Loan Documents. This Agreement or counterparts hereof shall
have been duly executed by, and delivered to, Borrowers, each other Credit Party, Agents and
Lenders; and each Agent shall have received such documents, instruments, agreements and legal
opinions as such Agent shall reasonably request in connection with the transactions contemplated by
this Agreement and the other Loan Documents, including all those listed in the Closing Checklist
attached hereto as Annex D, each in form and substance reasonably satisfactory to such
Agent.

     (b) [Reserved]

     (c) Approvals. Agents shall have received (i) satisfactory evidence that the Credit
Parties have obtained all required consents and approvals of all Persons including all requisite
Governmental Authorities, to the execution, delivery and performance of this Agreement and the
other Loan Documents and the consummation of the Related Transactions or (ii) an officer’s
certificate in form and substance reasonably satisfactory to Agents affirming that no such consents
or approvals are required.

     (d) Opening Availability. The Eligible Accounts of WESCO DC LP and Eligible Inventory
of Borrowers supporting the initial Revolving Credit Advance and the initial Letter of Credit
Obligations incurred and the amount of the Reserves to be established on the Closing Date shall be
sufficient in value, as determined by Agent, to provide Borrowers with Borrowing Availability,
after giving effect to the initial Revolving Credit Advance, the incurrence of any initial Letter
of Credit Obligations and the consummation of the Related Transactions (on a pro forma basis, with
trade payables being paid currently and consistent with past practices, and expenses and
liabilities being paid in the ordinary course of business and without acceleration of sales) of at
least $100,000,000.

     (e) Payment of Fees. Borrowers shall have paid the Fees required to be paid on the
Closing Date in the respective amounts specified in Section 1.9 (including, without
limitation, the Fees specified in the GE Capital Fee Letter), and shall have reimbursed Agents for
all fees, costs and expenses of closing presented as of the Closing Date.

     (f) Capital Structure: Other Indebtedness. The capital structure of each Credit Party
and the terms and conditions of all Indebtedness of each Credit Party shall be acceptable to Agent
in its sole discretion.

     (g) Due Diligence. Agent shall have completed its business and legal due diligence,
including a Collateral audit and an Inventory appraisal, as previously delivered, with

29

 

results
reasonably satisfactory to Agent. Without limiting the foregoing, the corporate structure, capital
structure, other debt instruments, material contracts (including the Receivables Purchase
Agreement), and governing documents of Borrowers, the other Credit Parties and their respective
Affiliates must be acceptable to Agent.

     (h) CSC Cash Management Systems. The cash management systems of the CSC Borrowers
shall provide for all proceeds of the Accounts of the CSC Borrowers to be received in bank accounts
over which the Agent, on behalf of itself and Lenders, has a Lien and
which shall be subject to tri-party blocked account agreements in favor of the Agent, on
behalf of itself and Lenders, all of the foregoing to be in form and substance satisfactory to
Agent. At closing, none of the Accounts of the CSC Borrowers shall be subject to the
securitization provided under the terms of the Receivables Purchase Agreement and Receivables Sale
Agreement.

     (i) Intercreditor Agreement. The Intercreditor Agreement shall remain in full force
and effect both before and after giving effect to this Third Amended and Restated Credit Agreement
and the transactions contemplated hereby, all on terms and in form and substance satisfactory to
Agent and its counsel.

     (j) 2006 Convertible Debentures. Agent shall have reviewed the terms and conditions
of the 2006 Convertible Debentures contemplated to be issued pursuant to the provisions of
Section 6.3(a)(xxiv) and the indenture and other agreements, instruments and documents
relating thereto, shall be satisfied with all such terms and conditions and shall have confirmed
that the Credit Parties are in compliance therewith, both before and after giving effect to this
Agreement, the transactions contemplated hereby and the Related Transactions and the transactions
contemplated thereby.

     (k) Interest Rate Swap Agreements. Agent shall have reviewed the terms and conditions
of the Swap Agreements and the other agreements, instruments and documents relating thereto, shall
be satisfied with all such terms and conditions and shall have confirmed that the Credit Parties
are in compliance therewith, both before and after giving effect to this Agreement, the
transactions contemplated hereby and the Related Transactions and the transactions contemplated
thereby.

     2.2 Further Conditions to Each Loan.

     Except as otherwise expressly provided herein, no Lender shall be obligated to fund any
Advance, convert or continue any Loan as a LIBOR Loan or a BA Rate Loan or incur any Letter of
Credit Obligation, if, as of the date thereof:

     (a) any representation or warranty by any Credit Party contained herein or in any other Loan
Document is untrue or incorrect as of such date, except to the extent that such representation or
warranty expressly relates to an earlier date and except for changes therein expressly permitted or
expressly contemplated by this Agreement, and Agent or Requisite Lenders have determined not to
make such Advance, convert or continue any Loan as LIBOR Loan or BA Rate Loan or incur such Letter
of Credit Obligation as a result of the fact that such warranty or representation is untrue or
incorrect;

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     (b) any event or circumstance having a Material Adverse Effect has occurred since the date
hereof as determined by Agent or Requisite Lenders, and Agent or Requisite Lenders have determined
not to make such Advance, convert or continue any Loan as a LIBOR Loan or BA Rate Loan or incur
such Letter of Credit Obligation as a result of the fact that such event or circumstance has
occurred;

     (c) any Default or Event of Default has occurred and is continuing or would result after
giving effect to any Advance (or the incurrence of any Letter of Credit Obligation), and Agent or
Requisite Lenders shall have determined not to make any Advance, convert or continue any Loan as a
LIBOR Loan or BA Rate Loan or incur any Letter of Credit Obligation as a result of that Default or
Event of Default; or

     (d) after giving effect to any Advance (or the incurrence of any Letter of Credit
Obligations), the outstanding principal amount of the Revolving Loan would exceed the lesser of the
Borrowing Base and the Maximum Amount, in each case, less the then outstanding principal amount of
the Swing Line Loan.

     The request and acceptance by any Borrower of the proceeds of any Advance, the incurrence of any
Letter of Credit Obligations or the conversion or continuation of any Loan into, or as, a LIBOR
Loan or BA Rate Loan shall be deemed to constitute, as of the date thereof, (i) a representation
and warranty by Borrowers that the conditions in this Section 2.2 have been satisfied and
(ii) a reaffirmation by Borrowers of the cross-guaranty provisions set forth in Section 12
and of the granting and continuance of Agent’s Liens, on behalf of itself and Lenders, pursuant to
the Collateral Documents.

3. REPRESENTATIONS AND WARRANTIES

     To induce Lenders to make the Loans and to incur Letter of Credit Obligations, the Credit
Parties executing this Agreement, jointly and severally, make the following representations and
warranties to each Agent and each Lender with respect to all Credit Parties, each and all of which
shall survive the execution and delivery of this Agreement.

     3.1 Corporate Existence; Compliance with Law.

     Each Credit Party (a) is a corporation, limited liability company, unlimited liability company
or limited partnership duly organized, validly existing and in good standing under the laws of its
respective jurisdiction of incorporation or organization set forth in Disclosure Schedule
(3.1); (b) is duly qualified to conduct business and is in good standing in each other
jurisdiction where its ownership or lease of property or the conduct of its business requires such
qualification, except where the failure to be so qualified would not result in exposure to losses,
damages or liabilities in excess of $500,000; (c) has the requisite power and authority and the
legal right to own, pledge, mortgage or otherwise encumber and operate its properties, to lease the
property it operates under lease and to conduct its business as now, heretofore and proposed to be
conducted; (d) subject to specific representations regarding Environmental Laws, has all material
licenses, permits, consents or approvals from or by, and has made all material filings with, and
has given all material notices to, all Governmental Authorities having jurisdiction, to the extent
required for such ownership, operation and conduct;

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(e) is in compliance with its charter and
bylaws or partnership or operating agreement, or partnership declaration and agreement as
applicable; and (f) subject to specific representations set forth herein regarding ERISA,
Environmental Laws, tax and other laws, is in compliance with all applicable provisions of law,
except where the failure to comply, individually or in the aggregate, could not reasonably be
expected to have a Material Adverse Effect.

     3.2 Executive Offices, Collateral Locations, FEIN.

     As of the Closing Date, the current location of each Credit Party’s chief executive office (or
applicable foreign equivalent), principal place of business, domicile (within the meaning of the
Quebec Civil Code), any other offices and the warehouses and premises at which any Collateral is
stored or located are set forth in Disclosure Schedule (3.2), and, except as expressly set
forth in Disclosure Schedule (3.2), none of such locations has changed within 12 months
preceding the Closing Date. In addition, Disclosure Schedule (3.2) lists the federal
employer identification number (or applicable foreign equivalent, if any) and state organizational
identification number of each Credit Party.

     3.3 Corporate Power, Authorization, Enforceable Obligations.

     The execution, delivery and performance by each Credit Party of the Loan Documents to which it
is a party and the creation of all Liens provided for therein: (a) are within such Person’s power;
(b) have been duly authorized by all necessary corporate, limited liability company or limited
partnership action; (c) do not contravene any provision of such Person’s charter, bylaws or
partnership or operating agreement or partnership declaration and agreement as applicable; (d) do
not violate any law or regulation, or any order or decree of any court or Governmental Authority;
(e) do not conflict with or result in the breach or termination of, constitute a default under or
accelerate or permit the acceleration of any performance required by, any indenture, mortgage, deed
of trust, lease, agreement or other instrument to which such Person is a party or by which such
Person or any of its property is bound; (f) do not result in the creation or imposition of any Lien
upon any of the property of such Person other than those in favor of Agent, on behalf of itself and
Lenders, pursuant to the Loan Documents; and (g) do not require the consent or approval of any
Governmental Authority or any other Person, except those referred to in Section 2.1(c), all
of which will have been duly obtained, made or complied with prior to the Closing Date. Each of
the Loan Documents shall be duly executed and delivered by each Credit Party that is a party
thereto and each such Loan Document shall constitute a legal, valid and binding obligation of such
Credit Party enforceable against it in accordance with its terms.

     3.4 Financial Statements and Projections.

     Except for the Projections, all Financial Statements concerning Holdings and its Subsidiaries
that are referred to below have been prepared in accordance with GAAP consistently applied
throughout the periods covered (except as disclosed therein and except, with respect to unaudited
Financial Statements, for the absence of footnotes and normal year-end audit adjustments) and
present fairly in all material respects the financial position of the Persons covered thereby as at
the dates thereof and the results of their operations and cash flows for the periods then ended.

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     (a) Holdings’ and its Subsidiaries’ Financial Statements. The following Financial
Statements of Holdings and its Subsidiaries attached hereto, as Disclosure Schedule
(3.4(a)), have been delivered on the date hereof:

          (i) The audited consolidated and consolidating balance sheets at December 31, 2003, 2004 and
2005 and the related statements of income and cash flows of Holdings and its Subsidiaries for the
Fiscal Years then ended, certified by PriceWaterhouse Coopers LLP.

          (ii) The unaudited consolidated and consolidating balance sheets at March 31, 2006 and June
30, 2006 and the related statements of income and cash flows of Holdings and its Subsidiaries for
the Fiscal Quarters then ended.

          (iii) The unaudited consolidated balance sheets at August 31, 2006 and the related statements
of income and cash flows of Holdings and its Subsidiaries for the months then ended.

     (b) CSC Holdings’ Financial Statements. The following Financial Statements of CSC
Holdings, attached hereto as Disclosure Schedule (3.4(b)), have been delivered on the date
hereof:

          (i) The audited consolidated and consolidating balance sheets at December 31, 2003, 2004 and
2005 and the related statements of income and cash flows of CSC Holdings and its Subsidiaries for
the Fiscal Years then ended, certified by Ernst & Young LLP.

          (ii) The unaudited consolidated and consolidating balance sheets at March 31, 2006 and June
30, 2006 and the related statements of income and cash flows of CSC Holdings and its Subsidiaries
for the Fiscal Quarters then ended.

          (iii) The unaudited consolidated balance sheets at August 31, 2006 and the related statements
of income and cash flows of CSC Holdings and its Subsidiaries for the months then ended.

     (c) Projections. The Projections delivered on the date hereof and attached hereto as
Disclosure Schedule (3.4(c)) have been prepared by Borrowers and Holdings in light of the
past operations of their businesses, but including future payments of known contingent liabilities,
and reflect projections for the six (6) year period beginning on January 1, 2007 on a
quarter-by-quarter basis for the first year and on a year-by-year basis thereafter. The
Projections are based upon estimates and assumptions stated therein, all of which each of each
Borrower and Holdings believes to be reasonable and fair in light of current conditions and current
facts known to Borrowers and Holdings and, as of the Closing Date, reflect each Borrower’s and
Holdings’ good faith and reasonable estimates of the future financial performance of Borrower and
Holdings and of the other information projected therein for the period set forth therein.

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     3.5 Material Adverse Effect.

     Between December 31, 2005 and the Closing Date, (a) no Credit Party has incurred any
obligations, contingent or noncontingent liabilities, liabilities for Charges, long-term leases or
unusual forward or long-term commitments that are not reflected in the Financial Statements
identified in Section 3.4(a)(ii) and (iii) and attached hereto as part of Disclosure
Schedule 3.4(a)) and that, alone or in the aggregate, could reasonably be expected to have a
Material Adverse Effect, (b) no contract, lease or other agreement or instrument has been
entered into by any Credit Party or has become binding upon any Credit Party’s assets and no law or
regulation applicable to any Credit Party has been adopted that has had or could reasonably be
expected to have a Material Adverse Effect, and (c) no Credit Party is in default and to the best
of Borrowers’ knowledge no third party is in default under any material contract, lease or other
agreement or instrument, that alone or in the aggregate could reasonably be expected to have a
Material Adverse Effect. Between December 31, 2005 and the Closing Date no event has occurred,
that alone or together with other events, could reasonably be expected to have a Material Adverse
Effect.

     3.6 Ownership of Property; Liens.

     As of the Closing Date, the real estate (“Real Estate”) listed in Disclosure
Schedule (3.6) constitutes all of the real property owned, leased, subleased, or used by any
Credit Party. Each Credit Party owns good and marketable fee simple title to all of its owned Real
Estate, and valid and marketable leasehold interests in all of its leased Real Estate, all as
described on Disclosure Schedule (3.6), and copies of all such leases or a summary of terms
thereof reasonably satisfactory to Agents have been delivered to Agents. Disclosure Schedule
(3.6) further describes any Real Estate with respect to which any Credit Party is a lessor,
sublessor or assignor as of the Closing Date. Each Credit Party also has good, valid and
marketable title to, or valid leasehold interests in, all of its personal property and assets. As
of the Closing Date, none of the properties and assets of any Credit Party are subject to any Liens
other than Permitted Encumbrances, and there are no facts, circumstances or conditions known to
any Credit Party that may result in any Liens (including Liens arising under Environmental Laws)
other than Permitted Encumbrances. Each Credit Party has received all deeds, assignments, waivers,
consents, nondisturbance and attornment or similar agreements, bills of sale and other documents,
and has duly effected all recordings, filings and other actions necessary to establish, protect and
perfect such Credit Party’s right, title and interest in and to all such Real Estate and other
properties and assets. Disclosure Schedule (3.6) also describes any purchase options,
rights of first refusal or other similar contractual rights pertaining to any Real Estate. As of
the Closing Date, no portion of any Credit Party’s Real Estate has suffered any material damage by
fire or other casualty loss that has not heretofore been repaired and restored in all material
respects to its original condition or otherwise remedied. As of the Closing Date, all material
permits required to have been issued or appropriate to enable the Real Estate to be lawfully
occupied and used for all of the purposes for which it is currently occupied and used have been
lawfully issued and are in full force and effect.

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     3.7 Labor Matters.

     As of the Closing Date (a) no strikes or other material labor disputes against any Credit
Party are pending or, to any Credit Party’s knowledge, threatened; (b) hours worked by and payment
made to employees of each Credit Party comply with the Fair Labor Standards Act and each other
federal, state, local or foreign law applicable to such matters; (c) all payments due from any
Credit Party for employee health and welfare insurance and on account of Canada Pension Plan and
Quebec Pension Plan employer contributions, Canadian workers compensation premiums, Canadian
employment insurance premiums, and employee vacation pay have been paid
or accrued as a liability on the books of such Credit Party; (d) except as set forth in
Disclosure Schedule (3.7), no Credit Party is a party to or bound by any material
collective bargaining agreement, management agreement, consulting agreement, employment agreement,
bonus, restricted stock, stock option, or stock appreciation plan or agreement or any similar plan,
agreement or arrangement material to such Credit Party (and true and complete copies of any
agreements (or the form of any such agreement) described on Disclosure Schedule (3.7) have
been delivered to Agents); (e) there is no organizing activity involving any Credit Party pending
or, to any Credit Party’s knowledge, threatened by any labor union or group of employees; (f) there
are no representation proceedings pending or, to any Credit Party’s knowledge, threatened with the
National Labor Relations Board (or applicable equivalent or similar foreign organization) and no
labor organization or group of employees of any Credit Party has made a pending demand for
recognition; and (g) except as set forth in Disclosure Schedule (3.7), there are no
material complaints or charges against any Credit Party pending or, to the knowledge of any Credit
Party, threatened to be filed with any Governmental Authority or arbitrator based on, arising out
of, in connection with, or otherwise relating to the employment or termination of employment by any
Credit Party of any individual.

     3.8 Ventures, Subsidiaries and Affiliates; Outstanding Stock and Indebtedness.

     Except as set forth in Disclosure Schedule (3.8), as of the Closing Date, no Credit
Party has any Subsidiaries, is engaged in any joint venture or partnership with any other Person,
or is an Affiliate of any other Person. All of the issued and outstanding Stock of each Credit
Party is owned by each of the Stockholders and in the amounts set forth in Disclosure Schedule
(3.8). Except as set forth in Disclosure Schedule (3.8), there are no outstanding
rights to purchase, options, warrants or similar rights or agreements pursuant to which any Credit
Party may be required to issue, sell, repurchase or redeem any of its Stock or other equity
securities or any Stock or other equity securities of its Subsidiaries. All outstanding
Indebtedness and Guaranteed Indebtedness of each Credit Party as of the Closing Date (except for
the Obligations) is described in Section 6.3 (including Disclosure Schedule (6.3)).
Holdings has not engaged in any trade or business that would not be permitted by Section
6.20, and has no assets (except Stock of its two Subsidiaries, Borrower and WESCO Finance) or
any Indebtedness or Guaranteed Indebtedness (except the Obligations). None of any Borrower’s
non-Canadian foreign Subsidiaries has any assets individually in excess of $15,000,000 (or the
Dollar Equivalent Amount thereof) or, in the aggregate for all non-Canadian foreign Subsidiaries,
in excess of $25,000,000 (or the Dollar Equivalent Amount thereof). Other than as set forth in
Disclosure Schedule 3.8, none of WESCO Finance, WDC Holding, WESCO Canada or WESCO

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Canada
GP has engaged in any trade or business that would not be permitted by Section 6.20, has
any assets in excess of $250,000, other than intercompany indebtedness owed to it and expressly
permitted under Section 6.3(a), has any creditors other than a Credit Party, or has any
Indebtedness or Guaranteed Indebtedness (except the Obligations), other than intercompany
indebtedness expressly permitted under Section 6.3(a).

     3.9 Government Regulation.

     No Credit Party is an “investment company” or an “affiliated person” of, or “promoter” or
“principal underwriter” for, an “investment company,” as such terms are defined in the Investment
Company Act of 1940. No Credit Party is subject to regulation under the Public Utility Holding
Company Act of 1935, the Federal Power Act, or any other federal or state statute that restricts or
limits its ability to incur Indebtedness or to perform its obligations hereunder. The making of the
Loans by Lenders to Borrowers, the incurrence of the Letter of Credit Obligations on behalf of
Borrowers, the application of the proceeds thereof and repayment thereof and the consummation of
the Related Transactions will not violate any provision of any such statute or any rule, regulation
or order issued by the Securities and Exchange Commission (or applicable foreign equivalent or
similar regulatory body).

     3.10 Margin Regulations.

     No Credit Party is engaged, nor will it engage, principally or as one of its important
activities, in the business of extending credit for the purpose of “purchasing” or “carrying” any
“margin stock” as such terms are defined in Regulation U of the Federal Reserve Board as now and
from time to time hereafter in effect (such securities being referred to herein as “Margin
Stock”). No Credit Party owns any Margin Stock, and none of the proceeds of the Loans or other
extensions of credit under this Agreement will be used, directly or indirectly, for the purpose of
purchasing or carrying any Margin Stock, for the purpose of reducing or retiring any Indebtedness
that was originally incurred to purchase or carry any Margin Stock or for any other purpose that
might cause any of the Loans or other extensions of credit under this Agreement to be considered a
“purpose credit” within the meaning of Regulations T, U or X of the Federal Reserve Board. No
Credit Party will take or permit to be taken any action that might cause any Loan Document to
violate any regulation of the Federal Reserve Board.

     3.11 Taxes.

     All tax returns, reports and statements, including information returns, required by any
Governmental Authority to be filed by any Credit Party have been filed with the appropriate
Governmental Authority and all Charges have been paid prior to the date on which any fine, penalty,
interest or late charge may be added thereto for nonpayment thereof (or any such fine, penalty,
interest, late charge or loss has been paid), excluding Charges or other amounts being contested
in accordance with Section 5.2(b). Proper and accurate amounts have been withheld by each
Credit Party from its respective employees for all periods in full and complete compliance with all
applicable federal, state, local and foreign laws and such withholdings have been timely paid to
the respective Governmental Authorities. Disclosure Schedule (3.11) sets forth as of the
Closing Date those taxable years for which any Credit Party’s tax returns are currently being
audited by the IRS or any other applicable Governmental Authority and any

36

 

assessments or threatened assessments in connection with such audit, or otherwise currently outstanding. Except as described
in Disclosure Schedule (3.11), no Credit Party has executed or filed with the IRS or any
other Governmental Authority any agreement or other document extending, or having the effect of
extending, the period for assessment or collection of any Charges. None of the Credit Parties and
their respective predecessors are liable for any Charges: (a) under any agreement (including any
tax sharing agreements) or (b) to each Credit Party’s knowledge, as a transferee. As of the
Closing Date, no Credit Party has agreed or been requested to make any adjustment under IRC Section
481(a), by reason of a change in accounting method or otherwise, which would have a Material
Adverse Effect.

     3.12 ERISA.

     (a) Disclosure Schedule (3.12) lists all Plans and separately identifies all Pension
Plans, including Title IV Plans, Multiemployer Plans, ESOPs and Welfare Plans, including all
Retiree Welfare Plans. Copies of all such listed Plans, together with a copy of the latest IRS/DOL
form 5500-series for each such Plan, if applicable, have been delivered to Agent. Except with
respect to Multiemployer Plans, each Qualified Plan has been determined by the IRS to qualify under
Section 401 of the IRC, the trusts created thereunder have been determined to be exempt from tax
under the provisions of Section 501 of the IRC, and nothing has occurred that would cause the loss
of such qualification or tax-exempt status. Each Plan is in material compliance with the
applicable provisions of ERISA and the IRC, including the timely filing of all reports required
under the IRC or ERISA, including the statement required by 29 CFR Section 2520.104-23. Neither
any Credit Party nor ERISA Affiliate has failed to make any contribution or pay any amount due as
required by either Section 412 of the IRC or Section 302 of ERISA or the terms of any such Plan.
Neither any Credit Party nor ERISA Affiliate has engaged in a “prohibited transaction,” as defined
in Section 406 of ERISA and Section 4975 of the IRC, in connection with any Plan, that would
subject any Credit Party to a material tax on prohibited transactions imposed by Section 502(i) of
ERISA or Section 4975 of the IRC.

     (b) Except as set forth in Disclosure Schedule (3.12): (i) no Title IV Plan has any
Unfunded Pension Liability; (ii) no ERISA Event or event described in Section 4062(e) of ERISA with
respect to any Title IV Plan has occurred or is reasonably expected to occur; (iii) there are no
pending, or to the knowledge of any Credit Party, threatened claims (other than
claims for benefits in the normal course), sanctions, actions or lawsuits, asserted or
instituted against any Plan or any Person as fiduciary or sponsor of any Plan; (iv) no Credit Party
or ERISA Affiliate has incurred or reasonably expects to incur any liability as a result of a
complete or partial withdrawal from a Multiemployer Plan; (v) within the last five years no Title
IV Plan of any Credit Party or ERISA Affiliate has been terminated, whether or not in a “standard
termination” as that term is used in Section 404(b)(1) of ERISA, nor has any Title IV Plan of any
Credit Party or ERISA Affiliate (determined at any time within the past five years) with Unfunded
Pension Liabilities been transferred outside of the “controlled group” (within the meaning of
Section 4001(a)(14) of ERISA) of any Credit Party or ERISA Affiliate; (vi) except in the case of
any ESOP, Stock of all Credit Parties and their ERISA Affiliates makes up, in the aggregate, no
more than 10% of fair market value of the assets of any Plan measured on the basis of fair market
value as of the latest valuation date of any Plan; and (vii) no liability under any Title IV Plan
has been satisfied with the purchase of a contract from an insurance company that

37

 

is not rated AAA
by the Standard & Poor’s Corporation or an equivalent rating by another nationally recognized
rating agency. The Canadian Pension Plans are duly registered under the ITA and all other
applicable laws which require registration and no event has occurred which is reasonably likely to
cause the loss of such registered status. All obligations of WESCO DC LP (including fiduciary,
funding, investment and administration obligations) required to be performed in connection with the
Canadian Pension Plans and the funding agreements therefor have been performed in a timely fashion.
There have been no improper withdrawals or applications of the assets of the Canadian Pension
Plans or the Canadian Benefit Plans. There are no outstanding material disputes concerning the
assets of the Canadian Pension Plans or the Canadian Benefit Plans. Each of the Canadian Pension
Plans is fully funded on a solvency basis (using actuarial methods and assumptions which are
consistent with the valuations last filed with the applicable Governmental Authorities and which
are consistent with generally accepted actuarial principles). Disclosure Schedule (3.12)
lists all Canadian Benefit Plans and Canadian Pension Plans adopted by any Credit Party.

     3.13 No Litigation.

     No action, claim, lawsuit, demand, investigation or proceeding is now pending or, to the
knowledge of any Credit Party, threatened against any Credit Party, before any Governmental
Authority or before any arbitrator or panel of arbitrators (collectively, “Litigation”),
(a) that challenges any Credit Party’s right or power to enter into or perform any of its
obligations under the Loan Documents to which it is a party, or the validity or enforceability of
any Loan Document or any action taken thereunder, or (b) that has a reasonable risk of being
determined adversely to any Credit Party and that, if so determined, could reasonably be expected
to have a Material Adverse Effect. Except as set forth on Disclosure Schedule (3.13), as
of the Closing Date there is no Litigation pending or threatened that seeks damages in excess of
$500,000 or injunctive relief against, or alleges criminal misconduct of, any Credit Party.

     3.14 Brokers.

     No broker or finder acting on behalf of any Credit Party or Affiliate thereof brought about
the obtaining, making or closing of the Loans or the Related Transactions, and no
Credit Party or Affiliate thereof has any obligation to any Person in respect of any finder’s
or brokerage fees in connection therewith.

     3.15 Intellectual Property.

     As of the Closing Date, each Credit Party owns or has rights to use all Intellectual Property
necessary to continue to conduct its business as now or heretofore conducted by it or proposed to
be conducted by it, and each Patent, Design, Trademark, Copyright and License is listed, together
with application or registration numbers, as applicable, in Disclosure Schedule (3.15).
Each Credit Party conducts its business and affairs without infringement of or interference with
any Intellectual Property of any other Person in any material respect. Except as set forth in
Disclosure Schedule (3.15), no Credit Party is aware of any infringement claim by any other
Person with respect to any Intellectual Property.

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     3.16 Full Disclosure.

     No information contained in this Agreement, any of the other Loan Documents, any Projections,
Financial Statements or Collateral Reports or other written reports from time to time delivered
hereunder or any written statement furnished by or on behalf of any Credit Party to either Agent or
any Lender pursuant to the terms of this Agreement contains or will contain any untrue statement of
a material fact or omits or will omit to state a material fact necessary to make the statements
contained herein or therein not misleading in light of the circumstances under which they were
made. The Liens granted to Agent, on behalf of itself, Canadian Agent and Lenders, and to Canadian
Agent, on behalf of itself, Agent and Lenders pursuant to the Collateral Documents will at all
times be fully perfected first priority Liens in and to the Collateral described therein, subject,
as to priority, only to Permitted Encumbrances.

     3.17 Environmental Matters.

     (a) Except as set forth in Disclosure Schedule (3.17), as of the Closing Date: (i) the
Real Estate is free of contamination from any Hazardous Material except for such contamination that
would not adversely impact the value or marketability of such Real Estate and that would not result
in Environmental Liabilities that could reasonably be expected to exceed $250,000; (ii) no Credit
Party has caused or suffered to occur any Release of Hazardous Materials on, at, in, under, above,
to, from or about any of its Real Estate; (iii) the Credit Parties are and have been in compliance
with all Environmental Laws, except for such noncompliance that would not result in Environmental
Liabilities which could reasonably be expected to exceed $250,000; (iv) the Credit Parties have
obtained, and are in compliance with, all Environmental Permits required by Environmental Laws for
the operations of their respective businesses as presently conducted or as proposed to be
conducted, except where the failure to so obtain or comply with such Environmental Permits would
not result in Environmental Liabilities that could reasonably be expected to exceed $250,000, and
all such Environmental Permits are valid, uncontested and in good standing; (v) no Credit Party is
involved in operations or knows of any facts, circumstances or conditions, including any Releases
of Hazardous Materials, that are likely to result in any Environmental Liabilities of such Credit
Party which could reasonably be expected to exceed $250,000, and no Credit Party has permitted any
current or former tenant or
occupant of the Real Estate to engage in any such operations; (vi) there is no Litigation
arising under or related to any Environmental Laws, Environmental Permits or Hazardous Material
that seeks damages, penalties, fines, costs or expenses in excess of $250,000 or injunctive relief
against, or that alleges criminal misconduct by, any Credit Party; (vii) no notice has been
received by any Credit Party identifying it as a “potentially responsible party” or requesting
information under CERCLA or analogous state statutes, and to the knowledge of the Credit Parties,
there are no facts, circumstances or conditions that may result in any Credit Party being
identified as a “potentially responsible party” under CERCLA or analogous state statutes; and
(viii) the Credit Parties have provided to Agents copies of all existing environmental reports,
reviews and audits and all written information pertaining to actual or potential Environmental
Liabilities, in each case relating to any Credit Party.

     (b) Each Credit Party hereby acknowledges and agrees that neither Agent (i) is now, or has
ever been, in control of any of the Real Estate or any Credit Party’s affairs, or (ii)

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has the
capacity through the provisions of the Loan Documents or otherwise to influence any Credit Party’s
conduct with respect to the ownership, operation or management of any of its Real Estate or
compliance with Environmental Laws or Environmental Permits.

     3.18 Insurance.

     Disclosure Schedule (3.18) lists all insurance policies of any nature maintained, as
of the Closing Date, for current occurrences by each Credit Party.

     3.19 Deposit and Disbursement Accounts.

     Disclosure Schedule (3.19) lists all banks and other financial institutions at which
any Credit Party maintains deposit or other accounts as of the Closing Date, including any
Disbursement Accounts, and such Schedule correctly identifies the name, address and telephone
number of each depository, the name in which the account is held, a brief description of the
purpose of the account, and the complete account number therefor.

     3.20 Government Contracts.

     Except as set forth in Disclosure Schedule (3.20), as of a recent date prior to the
Closing Date, no Credit Party is a party to any contract or agreement with any Governmental
Authority and no Credit Party’s Accounts are subject to the Federal Assignment of Claims Act (31
U.S.C. Section 3727), to the Financial Administration Act (Canada) or any similar state,
provincial, local or foreign law.

     3.21 Customer and Trade Relations.

     As of the Closing Date, there exists no actual or, to the knowledge of any Credit Party,
threatened termination or cancellation of, or any material adverse modification or change in: the
business relationship of any Credit Party with any customer or group of customers whose purchases
during the preceding 12 months caused them to be ranked among the ten largest customers of such
Credit Party; or the business relationship of any Credit Party with any supplier material to its
operations.

     3.22 Agreements and Other Documents.

     As of the Closing Date, each Credit Party has provided to each Agent or its counsel, on behalf
of Lenders, accurate and complete copies (or summaries) of all of the following agreements or
documents to which it is subject and each of which is listed in Disclosure Schedule (3.22):
supply agreements and purchase agreements not terminable by such Credit Party within 60 days
following written notice issued by such Credit Party and involving transactions in excess of
$1,000,000 per annum; leases of Equipment having a remaining term of one year or longer and
requiring aggregate rental and other payments in excess of $500,000 per annum; any license or
permit held by the Credit Parties, the absence of which could be reasonably likely to have a
Material Adverse Effect; instruments and documents evidencing any Indebtedness or Guaranteed
Indebtedness of such Credit Party and any Lien granted by such Credit Party with respect thereto;
and instruments and agreements evidencing the issuance of

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any equity securities, warrants, rights
or options to purchase equity securities of such Credit Party.

     3.23 Solvency.

     Both before and after giving effect to (a) the Loans and Letter of Credit Obligations to be
made or incurred on the Closing Date or such other date as Loans and Letter of Credit Obligations
requested hereunder are made or incurred, (b) the disbursement of the proceeds of such Loans
pursuant to the instructions of Borrower Representative, (c) the consummation of the other Related
Transactions and (d) the payment and accrual of all transaction costs in connection with the
foregoing, each Credit Party is and will be Solvent.

     3.24 Subordinated Debt.

     (a) As of the Closing Date, Borrower Representative has delivered to each Agent a complete and
correct copy of the documentation with respect to the Indebtedness permitted pursuant to
Sections 6.3(a)(xxii), (xxiii) and (xxiv), including all schedules,
exhibits, amendments, supplements, modifications, assignments and all indentures and other
agreements, instruments and documents delivered pursuant thereto or in connection therewith. WESCO
Distribution or Holdings, as applicable, has the corporate power and authority to incur the
Indebtedness evidenced by the Indebtedness permitted pursuant to Sections 6.3(a)(xxii),
(xxiii) and (xxiv). The subordination provisions of the Indebtedness permitted
pursuant to Section 6.3(a)(xxiii), are enforceable against the holders of the Indebtedness
permitted pursuant to Section 6.3(a)(xxiii), by Agent and Lenders. All Obligations,
including the Letter of Credit Obligations, constitute Senior Indebtedness, Designated Senior
Indebtedness and Bank Indebtedness entitled to the benefits of the subordination provisions
contained in the documentation with respect to the Indebtedness permitted pursuant to Section
6.3(a)(xxiii). Each Borrower acknowledges that Agent and each Lender are entering into this
Agreement and are extending the Commitments in reliance upon the subordination provisions of the
Indebtedness permitted pursuant to Section 6.3(a)(xxiii), and this Section 3.24.
Each Borrower and each other Credit Party hereby represents, warrants and covenants that the
Indebtedness permitted pursuant to Section 6.3 (a)(xxii) and (xxiv) is Indebtedness
of Holdings and that any guaranties of such Indebtedness by any Borrower or other Credit Party
(other than Holdings) are and shall be
subordinate guaranties. Each Borrower hereby represents and warrants that, since September
30, 2005, no amendments, modifications or other changes have been made to Indebtedness permitted
pursuant to Sections 6.3(a)(xxii), (xxiii) and (xxiv), including, without
limitation, all schedules, exhibits, amendments, supplements, modifications, assignments and all
indentures and other agreements, instruments and documents delivered pursuant thereto or in
connection therewith.

     3.25 Rent.

     All rent and other payments due and owing by any Credit Party with respect to any property or
other premises leased or otherwise rented by any Credit Party have been paid in full other than
rent and other payments being contested in good faith in accordance with past practice in an
aggregate outstanding amount not to exceed $200,000 at any time; and each Credit Party is current
on all rent and other payments payable in respect of any property or other premises leased or
otherwise rented by such Credit Party other than rent and other payments

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being contested in good
faith in accordance with past practice in an aggregate outstanding amount not to exceed $200,000 at
any time for all Credit Parties.

4. FINANCIAL STATEMENTS AND INFORMATION

     4.1 Reports and Notices.

     (a) Each Credit Party executing this Agreement hereby agrees that from and after the Closing
Date and until the Termination Date, it shall deliver to each Agent or to each Agent and Lenders,
as required, the Financial Statements, notices, Projections and other information at the times, to
the Persons and in the manner set forth in Annex E.

     (b) Each Credit Party executing this Agreement hereby agrees that from and after the Closing
Date and until the Termination Date, it shall deliver to each Agent or to each Agent and Lenders,
as required, the various Collateral Reports (including Borrowing Base Certificates in the form of
Exhibit 4.1(b)) at the times, to the Persons and in the manner set forth in Annex
F.

     4.2 Communication with Accountants.

     Each Credit Party executing this Agreement authorizes each Agent with the prior consent of
Borrower Representative, which consent shall not be unreasonably withheld or delayed;
provided, however, that such consent shall not be required so long as a Default or
an Event of Default has occurred and is continuing; to communicate directly with its independent
certified or chartered, as applicable, public accountants, including PriceWaterhouse Coopers LLP,
and authorizes and, at any Agent’s request, shall instruct those accountants and advisors to
disclose and make available to such Agent any and all Financial Statements and other material
supporting financial documents and material correspondence relating to any Credit Party (including
copies of any issued management letters) with respect to the business, financial condition and
other affairs of any Credit Party.

5. AFFIRMATIVE COVENANTS

     Each Credit Party executing this Agreement jointly and severally agrees as to all Credit
Parties that from and after the date hereof and until the Termination Date:

     5.1 Maintenance of Existence and Conduct of Business.

     Each Credit Party shall: do or cause to be done all things necessary to preserve and keep in
full force and effect its existence (corporate, partnership, limited liability company or
otherwise) and its rights and franchises; continue to conduct its business substantially as now
conducted or as otherwise permitted hereunder; at all times maintain, preserve and protect all of
its assets and properties used or useful in the conduct of its business, and keep the same in good
repair, working order and condition in all material respects (taking into consideration ordinary
wear and tear) and from time to time make, or cause to be made, all necessary or appropriate
repairs, replacements and improvements thereto consistent with industry practices; and transact
business only in such corporate and trade names as are set forth in Disclosure Schedule
(5.1).

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     5.2 Payment of Charges.

     (a) Subject to Section 5.2(b), each Credit Party shall pay and discharge or cause to
be paid and discharged promptly all Charges payable by it, including (i) Charges imposed upon it,
its income and profits, or any of its property (real, personal or mixed) and all Charges with
respect to tax, social security and unemployment withholding with respect to its employees, (ii)
lawful claims for labor, materials, supplies and services or otherwise, and (iii) all storage or
rental charges payable to warehousemen and bailees, in each case, before any thereof shall become
past due.

     (b) Each Credit Party may in good faith contest, by appropriate proceedings, the validity or
amount of any Charges, Taxes or claims described in Section 5.2(a); provided, that
(i) adequate reserves with respect to such contest are maintained on the books of such Credit
Party, in accordance with GAAP; (ii) no Lien shall be imposed or otherwise arise to secure payment
of such Charges (other than payments to warehousemen and/or bailees) that is superior to any of the
Liens securing payment of the Obligations and such contest is maintained and prosecuted
continuously and with diligence and operates to suspend collection or enforcement of such Charges,
(iii) none of the Collateral becomes subject to forfeiture or loss as a result of such contest,
(iv) such Credit Party shall promptly pay or discharge such contested Charges, Taxes or claims and
all additional charges, interest, penalties and expenses, if any, and shall deliver to the
Applicable Agent evidence reasonably acceptable to such Agent of such compliance, payment or
discharge, if such contest is terminated or discontinued adversely to such Credit Party or the
conditions set forth in this Section 5.2(b) are no longer met, and (v) no Agent has advised
any Borrower in writing that such Agent reasonably believes that nonpayment or nondischarge thereof
could have or result in a Material Adverse Effect.

     5.3 Books and Records.

     (a) Each Credit Party shall keep adequate books and records with respect to its business
activities in which proper entries, reflecting all financial transactions, are made in accordance
with GAAP and on a basis consistent with the Financial Statements attached as Disclosure
Schedule (3.4(a)).

     (b) WESCO DC LP shall maintain, or cause to be maintained, a complete set of books and records
with respect to its business at its chief executive office in Ontario, Canada or at WESCO
Distribution’s chief executive office in Pittsburgh, Pennsylvania.

     5.4 Insurance; Damage to or Destruction of Collateral.

     (a) The Credit Parties shall, at their sole cost and expense, maintain the policies of
insurance described on Disclosure Schedule (3.18) as in effect on the date hereof or
otherwise in form and amounts and with insurers reasonably acceptable to Agent. Such policies of
insurance (or the loss payable and additional insured endorsements delivered to Agent) shall
contain provisions pursuant to which the insurer agrees to provide 30 days prior written notice to
the Applicable Agent in the event of any non-renewal, cancellation or amendment of any such
insurance policy. If any Credit Party at any time or times hereafter shall fail to obtain or
maintain any of the policies of insurance required above or to pay all premiums relating thereto,

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the Applicable Agent may at any time or times thereafter obtain and maintain such policies of
insurance and pay such premiums and take any other action with respect thereto that Agent deems
advisable. Neither Agent shall have any obligation to obtain insurance for any Credit Party or pay
any premiums therefor. By doing so, neither Agent shall be deemed to have waived any Default or
Event of Default arising from any Credit Party’s failure to maintain such insurance or pay any
premiums therefor. All sums so disbursed, including reasonable attorneys’ fees, court costs and
other charges related thereto, shall be payable on demand by Borrowers to the Applicable Agent and
shall be additional Obligations hereunder secured by the Collateral.

     (b) Each Agent reserves the right at any time upon any change in any Credit Party’s risk
profile (including any change in the product mix maintained by any Credit Party or any laws
affecting the potential liability of such Credit Party) to require additional forms and limits of
insurance to, in Agent’s opinion, adequately protect both such Agent’s and Lender’s interests in
all or any portion of the Collateral and to ensure that each Credit Party is protected by insurance
in amounts and with coverage customary for its industry. If reasonably requested by either Agent,
each Credit Party shall deliver to such Agent from time to time a report of a reputable insurance
broker, selected by Borrowers and reasonably satisfactory to such Agent, with respect to its
insurance policies.

     (c) Each Credit Party shall deliver to each Applicable Agent, in form and substance reasonably
satisfactory to such Agent, endorsements to (i) all “All Risk” and business interruption insurance
naming such Agent, on behalf of itself, the other Agent, as applicable, for whom it acts as agent
and those Lenders for whom it acts as agent, as loss payee, to the extent such Agent or the other
Agent or Lenders for whom it acts as agent has an interest in the Collateral covered thereby and
(ii) all general liability and other liability policies naming each
Applicable Agent, on behalf of itself, the other Agent, as applicable, and those Lenders for
whom it acts as agent, as additional insured. Each Credit Party irrevocably makes, constitutes and
appoints each Applicable Agent (and all officers, employees or agents designated by such Agent), so
long as any Default or Event of Default has occurred and is continuing or the anticipated insurance
proceeds exceed $1,000,000, as each Credit Party’s true and lawful agent and attorney-in-fact for
the purpose of making, settling and adjusting claims under such “All Risk” policies of insurance,
endorsing the name of each Credit Party on any check or other item of payment for the proceeds of
such “All Risk” policies of insurance and for making all determinations and decisions with respect
to such “All Risk” policies of insurance. Agent shall have no duty to exercise any rights or
powers granted to it pursuant to the foregoing power-of-attorney. Borrower Representative shall
promptly notify each Agent of any loss, damage, or destruction to the Collateral in the amount of
$500,000 or more, whether or not covered by insurance. After deducting from such proceeds the
expenses, if any, incurred by each Agent in the collection or handling thereof, each Applicable
Agent may, at its option, apply such proceeds to the reduction of the Obligations in accordance
with Section 1.3(d), provided that in the case of insurance proceeds pertaining to
any Credit Party other than any Borrower, such insurance proceeds shall be applied ratably to all
of the US Loans, in the case of a US Credit Party, and to all of the Canadian Loans, in the case of
a Canadian Credit Party, or permit or require each Credit Party to use such money, or any part
thereof, to replace, repair, restore or rebuild the Collateral in a diligent and expeditious manner
with materials and workmanship of substantially the same quality as existed before the loss, damage
or destruction. Notwithstanding the

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foregoing, if the casualty giving rise to such insurance
proceeds could not reasonably be expected to have a Material Adverse Effect and such insurance
proceeds do not exceed $1,000,000 in the aggregate, the Applicable Agent shall permit the
applicable Credit Party to replace, restore, repair or rebuild the property; provided that
if such Credit Party has not completed or entered into binding agreements to complete such
replacement, restoration, repair or rebuilding within 180 days of such casualty, the Applicable
Agent may apply such insurance proceeds to the Obligations in accordance with Section
1.3(d); provided further that in the case of insurance proceeds pertaining to any
Credit Party other than a Borrower, such insurance proceeds shall be applied to the Loans owing by
Borrowers. All insurance proceeds that are to be made available to any Borrower to replace,
repair, restore or rebuild the Collateral shall be applied by the Applicable Agent to reduce the
outstanding principal balance of the applicable Revolving Loan of such Borrower(s) (which
application shall not result in a permanent reduction of the Revolving Loan Commitment) and upon
such application, such Agent shall establish a Reserve against the Borrowing Base in an amount
equal to the amount of such proceeds so applied. All insurance proceeds made available to any
Credit Party that is not a Borrower to replace, repair, restore or rebuild Collateral shall be
deposited in a cash collateral account. Thereafter, such funds shall be made available to such
Credit Party to provide funds to replace, repair, restore or rebuild the Collateral as follows: (i)
Borrower Representative shall request a Revolving Credit Advance or release from the cash
collateral account be made to such Borrower or such other Credit Party, as the case may be, in the
amount requested to be released; (ii) so long as the conditions set forth in Section 2.2
have been met, the applicable Lenders shall make such Revolving Credit Advance or the Applicable
Agent shall release funds from the cash collateral account; and (iii) in the case of insurance
proceeds applied against the Revolving Loan, the Reserve established with respect to such insurance
proceeds shall be reduced by the amount of such Revolving Credit Advance. To the
extent not used to replace, repair, restore or rebuild the Collateral, such insurance proceeds
shall be applied in accordance with Section 1.3(d); provided that in the case of
insurance proceeds pertaining to any Credit Party other than a Borrower, such insurance proceeds
shall be applied ratably to all of the US Loans, in the case of a US Credit Party, and to all of
the Canadian Loans, in the case of a Canadian Credit Party. Notwithstanding the provisions of this
Section 5.4(c), the insurance policies covering the real estate owned by SPEs pursuant to a
Permitted Sale-Leaseback and the proceeds of any such insurance policy covering such real estate
may be pledged as collateral to a Mortgage Lender. A Mortgage Lender may have a first priority
Lien on such insurance policies and the proceeds thereof covering such real property and may be
named as loss payee and additional insured with respect to such insurance policies, limited solely
to such real estate and the proceeds of damage or casualty thereto.

     5.5 Compliance with Laws.

     Each Credit Party shall comply with all federal, state, local, Canadian, provincial and
foreign laws and regulations applicable to it, including those relating to ERISA and labor matters
and Environmental Laws and Environmental Permits, except to the extent that the failure to comply,
individually or in the aggregate, could not reasonably be expected to have a Material Adverse
Effect.

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     5.6 Supplemental Disclosure.

     From time to time as may be reasonably requested by either Agent (which request will not be
made more frequently than once each year absent the occurrence and continuance of a Default or an
Event of Default), the Credit Parties shall supplement each Disclosure Schedule hereto, or any
representation herein or in any other Loan Document, with respect to any matter hereafter arising
that, if existing or occurring at the date of this Agreement, would have been required to be set
forth or described in such Disclosure Schedule or as an exception to such representation or that is
necessary to correct any information in such Disclosure Schedule or representation which has been
rendered inaccurate thereby (and, in the case of any supplements to any Disclosure Schedule, such
Disclosure Schedule shall be appropriately marked to show the changes made therein);
provided that (a) no such supplement to any such Disclosure Schedule or representation
shall amend, supplement or otherwise modify any Disclosure Schedule or representation, or be or be
deemed a waiver of any Default or Event of Default resulting from the matters disclosed therein,
except as consented to by Agent and Requisite Lenders in writing, and (b) no supplement shall be
required or permitted as to representations and warranties that relate solely to the Closing Date.

     5.7 Intellectual Property.

     Each Credit Party will conduct its business and affairs without infringement of or
interference with any Intellectual Property of any other Person in any material respect.

     5.8 Environmental Matters.

     Each Credit Party shall and shall cause each Person within its control to: (a) conduct its
operations and keep and maintain its Real Estate in compliance with all Environmental Laws and
Environmental Permits other than noncompliance that could not reasonably be expected to have a
Material Adverse Effect; (b) implement any and all investigation, remediation, removal and response
actions that are appropriate or necessary to maintain the value and marketability of the Real
Estate or to otherwise comply with Environmental Laws and Environmental Permits pertaining to the
presence, generation, treatment, storage, use, disposal, transportation or Release of any Hazardous
Material on, at, in, under, above, to, from or about any of its Real Estate; (c) notify each Agent
promptly after such Credit Party becomes aware of any violation of Environmental Laws or
Environmental Permits or any Release on, at, in, under, above, to, from or about any Real Estate
that is reasonably likely to result in Environmental Liabilities in excess of $250,000; and (d)
promptly forward to each Agent a copy of any order, notice, request for information or any
communication or report received by such Credit Party in connection with any such violation or
Release or any other matter relating to any Environmental Laws or Environmental Permits that could
reasonably be expected to result in Environmental Liabilities in excess of $250,000, in each case
whether or not the Environmental Protection Agency or any Governmental Authority has taken or
threatened any action in connection with any such violation, Release or other matter. If either
Agent at any time has a reasonable basis to believe that there may be a violation of any
Environmental Laws or Environmental Permits by any Credit Party or any Environmental Liability
arising thereunder, or a Release of Hazardous Materials on, at, in, under, above, to, from or about
any of its Real Estate, that, in each case, could reasonably be expected to have a

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Material Adverse
Effect, then each Credit Party shall, upon such Agent’s written request, (i) cause the performance
of such environmental audits including subsurface sampling of soil and groundwater, and preparation
of such environmental reports, at US Borrowers’ or Canadian Borrowers’, as applicable, expense, as
such Agent may from time to time reasonably request, which shall be conducted by reputable
environmental consulting firms reasonably acceptable to such Agent and shall be in form and
substance reasonably acceptable to such Agent, and (ii) permit such Agent or its representatives to
have access to all Real Estate for the purpose of conducting such environmental audits and testing
as such Agent deems appropriate, including subsurface sampling of soil and groundwater. The
applicable Borrowers shall reimburse the Applicable Agent for the costs of such audits and tests
and the same will constitute a part of the Obligations secured hereunder.

     5.9 Landlords’ Agreements, Mortgagee Agreements, Bailee Letters and Real Estate
Purchases.

     Each Credit Party shall use all commercially reasonable efforts to obtain a landlord’s
agreement, mortgagee agreement or bailee letter, as applicable, from the lessor of each leased
property, mortgagee of owned property or bailee with respect to any warehouse, processor or
converter facility or other location where Collateral is stored or located as of the Closing Date
and as may be stored or located thereafter, which agreement or letter shall contain a waiver or
subordination of all Liens or claims that the landlord, mortgagee or bailee may assert against the
Collateral at that location, and shall otherwise be reasonably satisfactory in form and substance
to Agent. With respect to such locations or warehouse space leased or owned following the June
2005 Closing Date (specifically excluding such locations or warehouse space leased or owned as
of the June 2005 Closing Date), if Agent has not received a landlord or mortgagee agreement or
bailee letter as of the date such location is acquired or leased, any Borrower’s Eligible Inventory
at that location shall, in Agent’s discretion, be subject to such Reserves as may be established by
Agent in its reasonable credit judgment. Each Credit Party shall use all commercially reasonable
efforts to obtain a collateral access agreement from each customer which has any Collateral of any
Credit Party located at its facilities (whether such facilities are owned or leased by such
customer), which agreement shall contain a waiver or subordination of all Liens or claims that such
customer may assert against the Collateral, provide for a release of all Liens by any other party,
if any, provide for a consent and acknowledgment to the ownership and Lien of Borrowers and Lien of
the Applicable Agent, in its favor and on behalf of the other Agent and Lenders, in the Collateral,
provide for the segregation of all Collateral from any personal property or other assets of such
customer, provide for all such UCC filings deemed necessary or desirable by the Applicable Agent
and shall otherwise be satisfactory in form and substance to such Agent. After the June 2005
Closing Date, no real property or warehouse space shall be leased by any Credit Party and no
Inventory shall be shipped to a processor or converter under arrangements established after the
June 2005 Closing Date unless and until a satisfactory landlord agreement or bailee letter, as
appropriate, shall first have been obtained with respect to such location or the Applicable Agent,
in its reasonable credit judgment, shall have established an appropriate Reserve, if any. If the
Applicable Agent has not received a collateral access agreement with respect to any customer
location, any Borrower’s Inventory at such customer location shall not be Eligible Inventory and
shall not be eligible for inclusion in any calculation of the Borrowing Base or Borrowing
Availability. Each Credit Party shall timely and fully pay and perform its

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rent and other
obligations under all leases and other agreements with respect to each leased location or public
warehouse where any Collateral is or may be located. Agent reserves the right, in its discretion,
to establish Reserves acceptable to Agent, in its reasonable credit judgment with respect to any
leased property, any warehouse, processor or converter facility, or any other location where
Collateral is stored or located as of the June 2005 Closing Date or as may be acquired or leased
thereafter. In no event shall any Inventory stored or otherwise located at any customer location
be considered Eligible Inventory or be otherwise eligible for inclusion in any calculation of the
Borrowing Base or Borrowing Availability unless Agent shall have received a collateral access
agreement acceptable to it and any and all other actions deemed necessary or desirable by Agent
(e.g. UCC filings) shall have been taken.

     5.10 Covenants Regarding Accounts.

     In the ordinary course of its business, each Credit Party processes its Accounts in a manner
such that (i) each payment received by such Credit Party in respect of an Account is allocated to a
specifically identified invoice, which invoice corresponds to a particular Account owing to such
Credit Party and (ii) in the event that, at any time, less than 100% of the Accounts of such Credit
Party are included in a Permitted Receivables Financing, payments received in respect of those
Accounts included in a Permitted Receivables Financing would be identifiable and separable from
payments received in respect of Accounts not so included in a Permitted Receivables Financing.
WESCO DC LP shall not at any time enter into a Permitted Receivables Financing or any other similar
financing or transaction.

     5.11 Canadian Pension and Benefit Plans.

     (a) For each existing Canadian Pension Plan, each Credit Party shall ensure that such plan
retains its registered status under and is administered in a timely manner in all material respects
in accordance with the applicable pension plan text, funding agreement, the ITA and all other
applicable laws.

     (b) For each Canadian Pension Plan hereafter adopted by any Credit Party which is required to
be registered under the ITA or any other applicable laws, that Credit Party shall use all
commercially reasonable efforts to seek and receive confirmation in writing from the applicable
Governmental Authorities to the effect that such plan is unconditionally registered under the ITA
and such other applicable laws.

     (c) For each existing and hereafter adopted Canadian Pension Plan and Canadian Benefit Plan,
each Credit Party shall in a timely fashion perform in all material respects all obligations
(including fiduciary, funding, investment and administration obligations) required to be performed
in connection with such plan and the funding media therefor.

     (d) Each Credit Party shall deliver to either Agent if requested by such Agent, promptly after
the filing thereof by any Credit Party with any applicable Governmental Authority, (i) copies of
each annual and other return, report or valuation with respect to each Canadian Pension Plan; (ii)
promptly after receipt thereof, a copy of any direction, order, notice, ruling or opinion that any
Credit Party may receive from any applicable Governmental Authority with respect to any Canadian
Pension Plan; and (iii) notification within 30 days of any increases

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having a cost to such Credit
Party in excess of Canadian $250,000, or the Dollar Equivalent Amount thereof, per annum, in the
benefits of any existing Canadian Pension Plan or Canadian Benefit Plan, or the establishment of
any new Canadian Pension Plan or Canadian Benefit Plan, or the commencement of contributions to any
such plan to which any Credit Party was not previously contributing.

     5.12 Foreign Subsidiaries’ Guaranties.

     Following a change in the relevant sections of the IRC or the regulations issued or
promulgated thereunder or Canadian law, the Credit Parties shall, within fifteen (15) days of a
written request by the Agent, retain an independent tax counsel reasonably satisfactory to the
Agent, which counsel shall, within fifteen (15) days of its retention, deliver a written opinion
addressed to the Credit Parties as to whether the entering into by any of the foreign Subsidiaries
of the Borrowers organized under the laws of Canada or Mexico (a “Foreign Subsidiary”) of a
guaranty in substantially the form of the Guaranties, could reasonably be expected to cause at the
time such change in law becomes effective (a) any undistributed earnings of any such Foreign
Subsidiary as determined for federal income tax purposes to be treated as a deemed dividend to
Holdings or any Borrower for federal income tax purposes or (b) a Material Adverse Effect (either
of the events specified in the foregoing clause (a) or (b) being referred to herein as a “Negative
Effect”), and if such counsel does not deliver within such fifteen-day period an opinion that a
Negative Effect would not occur in such circumstances, then, each such Foreign Subsidiary shall
execute and deliver to the Agent (i) a guaranty in the form of the Guaranties, guaranteeing
the obligations of the Credit Parties under the Loan Documents; (ii) a security agreement in
the form of the Security Agreement granting to Agent or Canadian Agent, as appropriate, a Lien on
all of its assets; and (iii) a pledge agreement in the form of the Pledge Agreements pledging all
of the Capital Stock owned by such Credit Party to Agent or Canadian Agent, as appropriate (or the
remaining portion of such Stock not previously pledged to Agent or Canadian Agent, as appropriate),
it being understood that no such guaranty, security agreement or pledge agreement shall be required
if such counsel delivers within such fifteen-day period an opinion that a Negative Effect would
occur as a result thereof.

     5.13 The CSC Borrowers Securitization.

     Prior to any qualification and sale of the Accounts of any of the CSC Borrowers into the
securitization provided under the terms of the Receivables Purchase Agreement and Receivables Sale
Agreement, Agent shall have received, all in form and substance reasonably satisfactory to Agent
and Borrowers, (i) amendments to the Receivables Purchase Agreement and Receivables Sale Agreement
relating to the qualification and sale of the CSC Borrowers Accounts into the securitization
provided for thereunder and the consequences thereof, (ii) an amendment and restatement of, or an
amendment to, the Intercreditor Agreement relating to the qualification and sale of the Accounts of
the CSC Borrowers into the securitization provided for under the terms of the Receivables Purchase
Agreement or Receivables Sale Agreement and the consequences thereof, and (iii) any and all such
other agreements, instruments and documents as Agent may reasonably request.

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     5.14 Further Assurances.

     Each Credit Party executing this Agreement agrees that it shall and shall cause each other
Credit Party to, at such Credit Party’s expense and upon request of each Agent, duly execute and
deliver, or cause to be duly executed and delivered, to such Agent such further instruments and do
and cause to be done such further acts as may be necessary or proper in the reasonable opinion of
such Agent to carry out more effectively the provisions and purposes of this Agreement or any other
Loan Document.

6. NEGATIVE COVENANTS

     Each Credit Party executing this Agreement jointly and severally agrees as to all Credit
Parties that from and after the date hereof until the Termination Date:

     6.1 Mergers, Subsidiaries, Etc.

     No Credit Party shall directly or indirectly, by operation of law or otherwise, (a) form or
acquire any Subsidiary, other than (i) the formation of Subsidiaries in connection with Permitted
Acquisitions (as defined below) permitted by this Section 6.1, (ii) the formation of
Subsidiaries, which are SPEs, in connection with the Mortgage Financings (iii) the formation of
non-domestic, non-Canadian Subsidiaries or (iv) the formation of WESCO Voltage in connection with
the CSC Acquisition; provided, that, following formation pursuant to clause (iii),
the representation and warranty contained in Section 3.8 shall remain true and correct; and
provided, further, that, in the case of both clauses (i) and (iii),
the prior written consent of Agent shall have been obtained; or (b) merge or amalgamate with,
consolidate with, acquire all or substantially all of the assets or Stock of, or otherwise combine
with or acquire, any Person.

     Notwithstanding the foregoing, Borrowers may consummate the CSC Acquisition within ten (10)
Business Days of the Closing Date, including the formation of WESCO Voltage and the merger of WESCO
Voltage with and into CSC Holdings, with CSC Holdings being the surviving corporation in connection
with the CSC Acquisition; provided, that, (i) the cash consideration paid in
connection with the CSC Acquisition shall not exceed $ 525,000,000 plus or minus the working
capital adjustment provided for under the terms and conditions of the Acquisition Agreement and the
documentation for the CSC Acquisition, including the Acquisition Agreement, is in form and
substance reasonably acceptable to Agent; (ii) Agent shall have received true and correct copies of
the unaudited Financial Statements of CSC Holdings and its Subsidiaries dated as of August 31,
2006; (iii) the CSC Acquisition shall be consummated on or before November 15, 2006; (iv) upon the
consummation of the CSC Acquisition, CSC Holdings and CSC Holdings’ Subsidiaries shall become a
party to the Credit Agreement, as Credit Parties and the CSC Borrowers shall become a party to the
Credit Agreement as US Borrowers; (v) upon the consummation of the CSC Acquisition, CSC Holdings,
the CSC Borrowers and CSC Holdings’ Subsidiaries shall become Grantors under the Security
Agreement; (vi) upon the consummation of the CSC Acquisition, CSC Holdings, the CSC Borrowers and
CSC Holdings’ Subsidiaries shall enter into a pledge agreement in form and substance satisfactory
to Agent; (vii) upon the consummation of the CSC Acquisition, WDC Holding shall enter into an
amendment to the WDC Holding Pledge Agreement whereby it shall pledge to Agent, on behalf of itself
and Lenders, all of the capital stock of CSC Holdings owned

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by WDC Holding; (viii) upon the
consummation of the CSC Acquisition and the transfer of any stock of CSC Holdings from WDC Holding
to WESCO Canada, (A) WESCO Canada shall enter into an amendment(s) to the WESCO Canada Pledge
Agreement whereby it shall pledge to Agent, on behalf of itself and Lenders, all of the capital
stock of CSC Holdings owned
by WESCO Canada; (B) WDC Holding shall have executed and delivered to
Agent an amendment to the WDC Holdings Pledge Agreement, in form and substance satisfactory to
Agent, pursuant to which WDC Holding shall have pledged to Agent, for itself and the benefit of
Lenders, the WESCO Voltage Note, and (C) WDC Holding shall have delivered to Agent, for itself and
the benefit of Lenders, the pledged WESCO Voltage Note; (ix) upon the consummation of the CSC
Acquisition each other domestic Subsidiary of CSC Holdings shall become a party to the Credit
Agreement as a Credit Party and the CSC Borrowers shall become a party to the Credit Agreement as
US Borrowers; (x) upon consummation of the CSC Acquisition and each other domestic Subsidiary of
CSC Holdings shall become a Grantor under the Security Agreement; (xi) upon the consummation of the
CSC Acquisition, the CSC Borrowers and each other domestic Subsidiary of CSC Holdings shall enter
into a pledge agreement in form and substance satisfactory to Agent; (xii) upon the consummation of
the CSC Acquisition, the CSC Borrowers and each other domestic Subsidiary of CSC Holdings shall
have executed and delivered to Agent a Joinder to Guaranty pursuant to which each shall become a
party to the Subsidiary Guaranty; (xiii) upon the consummation of the CSC Acquisition, CSC
Holdings, the CSC Borrowers and each other domestic Subsidiary of CSC Holdings that holds any
Intellectual Property shall enter into a Patent Security Agreement, a Trademark Security Agreement
and a Copyright Security
Agreement, as applicable, each in form and substance satisfactory to Agent; (xiv) at any time
and from time to time, upon the written request of Agent and at the sole expense of Borrowers,
Borrowers and/or any other Credit Party shall promptly and duly execute and deliver any and all
such UCC financing statements, PPSA financing statements, agreements, instruments and documents and
take such further actions as Agent may deem necessary or desirable to effectuate the foregoing
intents and purpose; (xv) upon the consummation of the CSC Acquisition, the Credit Parties shall
comply with the provisions of Section 5.6 hereof; (xvi) upon completion of the CSC
Acquisition, Agent shall receive a legal opinion addressed to Agent and each of the Lenders from
United States and Canadian counsel to Borrowers and the other Credit Parties, which legal opinion
shall address the CSC Acquisition and the matters contemplated by this provision including, by way
of example, but not of limitation, the various security agreements and pledge agreements and the
various security interests and liens granted to Agent, on behalf of itself and Lenders, and such
other related matters as Agent may reasonably request, and which legal opinion shall be in form and
substance satisfactory to Agent and (xxvii) both before and after giving effect to the transactions
contemplated by this paragraph, the $100,000,000 availability test set forth in Section
2.1(d) shall be satisfied; and (xviii) WESCO Distribution shall have issued the 2006
Convertible Debentures in compliance with the provisions of Section 6.3(a)(xxiv) for gross
proceeds of at least $200,000,000.

     Further, notwithstanding the foregoing, WESCO Distribution and WESCO DC LP may acquire all or
substantially all of the assets or Stock of any Person (the “Target”) (in each case, a
“Permitted Acquisition”) subject to the satisfaction of each of the following conditions:

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          (i) Agent shall receive at least 15 Business Days prior written notice of such proposed
Permitted Acquisition, which notice shall include a reasonably detailed description of such
proposed Permitted Acquisition;

          (ii) such Permitted Acquisition shall only involve assets located in the United States or
Canada, or assets located in foreign, non-Canadian locations having an aggregate value for all
Permitted Acquisitions consummated during the term of this Agreement not in excess of $5,000,000,
and comprising a business, or those assets of a business, of the type engaged in by Borrowers as of
the Closing Date, and which business would not subject any Agent or any Lender to regulatory or
third party approvals in connection with the exercise of its rights and remedies under this
Agreement or any other Loan Documents other than approvals applicable to the exercise of such
rights and remedies with respect to Borrowers prior to such Permitted Acquisition;

          (iii) such Permitted Acquisition shall be consensual and shall have been approved by the
Target’s board of directors;

          (iv) no additional Indebtedness, Guaranteed Indebtedness, contingent obligations or other
liabilities shall be incurred, assumed or otherwise be reflected on a consolidated balance sheet of
Borrowers and Target after giving effect to such Permitted Acquisition, except (A) Loans made
hereunder, (B) ordinary course trade payables, accrued expenses and unsecured Indebtedness of the
Target to the extent no Default or Event of Default has occurred and is continuing or would result
after giving effect to such Permitted Acquisition, (C)(x) earn-out payments in a maximum amount not to exceed $30,000,000 during any twelve-month
period for all Permitted Acquisitions; provided, however, that, no Default
or Event of Default shall have occurred or be continuing both before and after giving effect to any
such earn-out payments and Borrower shall have excess Borrowing Availability of at least
$25,000,000 on a pro forma basis for the 90-day period preceding any such earn-out, (y) any earn
out payments in connection with the Avon Agreement and (z) other earn-out payments, if any,
acceptable to Required Lenders; and (D) unsecured, subordinated seller paper issued to a seller in
connection with such a Permitted Acquisition; provided, that (x) the aggregate
principal amount of all such unsecured, subordinated seller paper outstanding at any time during
the term of this Agreement shall not exceed the sum of (i) the amount of seller paper outstanding
on the Closing Date ($20,000,000) and (ii) $50,000,000 (regardless of whether such seller paper was
issued before or after the Closing Date), (y) such seller paper shall be fully subordinated to the
Obligations in a manner and on terms and conditions satisfactory to Agent and (z) the terms and
conditions of such unsecured, subordinated seller paper shall be otherwise satisfactory to Agent;

          (v) the sum of all amounts payable (whether contingent or otherwise) in connection with any
single Permitted Acquisition (including all transaction costs and all Indebtedness, liabilities and
contingent obligations incurred or assumed in connection therewith or otherwise reflected on a
consolidated balance sheet of Borrowers and Target) (x) shall not exceed $50,000,000, and
provided, further, that, if the sum of all such amounts is $50,000,000 or less,
each of the conditions of clause (viii) below shall be satisfied, (y) shall not exceed $150,000,000
and provided, further, that, if the sum of all such amounts is greater than

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$50,000,000 but not greater than $150,000,000, each of the conditions set forth in clause (ix)
below shall be satisfied, and (z) in any event shall not exceed $150,000,000;

          (vi) the business and assets acquired in such Permitted Acquisition shall be free and clear of
all Liens, other than Permitted Encumbrances and mortgages on real property already in existence
prior to any consideration of such proposed Permitted Acquisition;

          (vii) at or prior to the closing of any Permitted Acquisition, the Applicable Agent will be
granted a first priority perfected Lien (subject to Permitted Encumbrances) in all assets acquired
pursuant thereto or in the assets and Stock of the Target and Borrowers, the other Credit Parties
and the Target shall have executed such documents and taken such actions as may be required by such
Agent in connection therewith; provided, however, that (1) such Agent shall not be
granted a Lien in accounts receivable to the extent and only to the extent that such accounts
receivable have been sold pursuant to the Permitted Receivables Financing, (2) with respect to
non-domestic, non-Canadian Permitted Acquisitions, no Agent shall be granted any Lien or other
security interest in any non-domestic, non-Canadian asset or property, and (3) the foregoing shall
not require any Borrower or any Credit Party to grant a Lien in any leased or owned in fee simple,
real property acquired in a Permitted Acquisition;

          (viii) if the sum of all amounts payable (whether contingent or otherwise) in connection with
any single Permitted Acquisition shall not exceed $50,000,000, Borrowers shall have delivered to
Agent, at least 5 Business Days prior to the closing of any Permitted Acquisition, in form and
substance reasonably satisfactory to Agent:

               (1) a pro forma consolidated balance sheet, income statement and cash flow statement of
Holdings and its Subsidiaries (the “Acquisition Pro Forma”), based on recent financial
statements, which shall be complete and shall fairly present in all material respects the assets,
liabilities, financial condition and results of operations of Holdings and its Subsidiaries in
accordance with GAAP consistently applied, but taking into account such Permitted Acquisition and
the funding of all Loans in connection therewith, and such Acquisition Pro Forma shall reflect that
(x) either (I)(i) on a pro forma basis, Holdings and its Subsidiaries would have had a Fixed Charge
Coverage Ratio of greater than or equal to 1.25 to 1.0 for the trailing twelve month period
reflected in the Compliance Certificate most recently delivered to Agent pursuant to Annex
E prior to the consummation of such Permitted Acquisition (after giving effect to such
Permitted Acquisition and all Loans funded in connection therewith as if made on the first day of
such period), and (ii) average daily Borrowing Availability for the 90-day period preceding the
consummation of such Permitted Acquisition would have exceeded $25,000,000 on a pro forma basis
(after giving effect to such Permitted Acquisition and all Loans funded in connection therewith as
if made on the first day of such period) and the Acquisition Projections (as defined below) shall
reflect that such Borrowing Availability of $25,000,000 shall continue for at least 90 days after
the consummation of such Permitted Acquisition or (II) average daily Borrowing Availability for the
90-day period preceding the consummation of such Permitted Acquisition would have exceeded
$50,000,000 on a pro forma basis (after giving effect to such Permitted Acquisition and all Loans
funded in connection therewith as if made on the first day of such period) and the Acquisition
Projections

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(as defined below) shall reflect that such Borrowing Availability of $50,000,000 or
greater shall continue for at least 90 days after the consummation of such Permitted Acquisition
and (y) on a pro forma basis, no Event of Default has occurred and is continuing or would result
after giving effect to such Permitted Acquisition and Borrower would have been in compliance with
the financial covenants set forth in Annex G for the trailing twelve month period reflected
in the Compliance Certificate most recently delivered to Agent pursuant to Annex E prior to
the consummation of such Permitted Acquisition (after giving effect to such Permitted Acquisition
and all Loans funded in connection therewith as if made on the first day of such period);

               (2) if the sum of all amounts payable (whether contingent or otherwise) in connection with
such Permitted Acquisition is in excess of $10,000,000, updated versions of the most recently
delivered Projections covering the one (1) year period commencing on the date of such Permitted
Acquisition and otherwise prepared in accordance with the Projections (the “Acquisition
Projections”) and based upon historical financial data of a recent date satisfactory to Agent,
taking into account such Permitted Acquisition; and

               (3) a certificate of the chief financial officer or treasurer of Holdings and Borrowers to the
effect that: (w) Borrowers (after taking into consideration all rights of contribution and
indemnity Borrowers have against Holdings and each other Subsidiary of Holdings) will be Solvent
upon the consummation of the Permitted Acquisition; (x) the Acquisition Pro Forma fairly presents
the financial condition of Holdings and Borrowers (on a consolidated basis) as of the date thereof
after giving effect to the Permitted Acquisition; (y) the Acquisition Projections are reasonable
estimates of the future financial performance of Holdings and Borrowers subsequent to the date
thereof based upon the historical performance of Holdings, Borrowers and the Target and show that
Holdings and Borrowers shall continue to be in
compliance with the financial covenants set forth in Annex G for the one-year period
thereafter; and (z) Holdings and Borrowers have completed their due diligence investigation with
respect to the Target and such Permitted Acquisition, which investigation was conducted in a manner
similar to that which would have been conducted by a prudent purchaser of a comparable business and
the results of which investigation were delivered to Agents and Lenders;

          (ix) if the sum of all amounts payable (whether contingent or otherwise) in connection with
any single Permitted Acquisition is greater than $50,000,000, but not greater than $150,000,000,
Borrowers shall have delivered to Agent, at least 5 Business Days prior to the closing of any
Permitted Acquisition, in form and substance reasonably satisfactory to Agent:

               (1) the Acquisition Pro Forma, based on recent financial statements, which shall be complete
and shall fairly present in all material respects the assets, liabilities, financial condition and
results of operations of Holdings and its Subsidiaries in accordance with GAAP consistently
applied, but taking into account such Permitted Acquisition and the funding of all Loans in
connection therewith, and such Acquisition Pro Forma shall reflect that (x)(i) on a pro forma
basis, Holdings and its Subsidiaries would have had a Fixed Charge Coverage Ratio of greater than
or equal to 1.1 to 1.0 for the trailing twelve month period reflected in the Compliance Certificate
most recently delivered to Agent pursuant to Annex E prior to the consummation of such
Permitted Acquisition (after giving effect to such Permitted

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Acquisition and all Loans funded in
connection therewith as if made on the first day of such period), and (ii) average daily Borrowing
Availability for the 90-day period preceding the consummation of such Permitted Acquisition would
have exceeded $100,000,000 on a pro forma basis (after giving effect to such Permitted Acquisition
and all Loans funded in connection therewith as if made on the first day of such period) and the
Acquisition Projections (as defined below) shall reflect that such Borrowing Availability of
$100,000,000 or greater shall continue for at least 90 days after the consummation of such
Permitted Acquisition and (y) on a pro forma basis, no Event of Default has occurred and is
continuing or would result after giving effect to such Permitted Acquisition and Borrower would
have been in compliance with the financial covenants set forth in Annex G for the trailing
twelve month period reflected in the Compliance Certificate most recently delivered to Agent
pursuant to Annex E prior to the consummation of such Permitted Acquisition (after giving
effect to such Permitted Acquisition and all Loans funded in connection therewith as if made on the
first day of such period);

               (2) updated versions of the most recently delivered Projections covering the one (1) year
period commencing on the date of such Permitted Acquisition and otherwise prepared in accordance
with the Projections (the “Acquisition Projections”) and based upon historical financial data of a
recent date satisfactory to Agent, taking into account such Permitted Acquisition;

               (3) a certificate of the chief financial officer or treasurer of Holdings and Borrowers to the
effect that: (w) Borrowers (after taking into consideration all rights of contribution and
indemnity Borrower has against Holdings and each other Subsidiary of Holdings) will be Solvent upon
the consummation of the Permitted Acquisition; (x) the Acquisition Pro Forma fairly presents the
financial condition of Holdings and Borrowers (on a
consolidated basis) as of the date thereof after giving effect to the Permitted Acquisition;
(y) the Acquisition Projections are reasonable estimates of the future financial performance of
Holdings and Borrowers subsequent to the date thereof based upon the historical performance of
Holdings, Borrowers and the Target and show that Holdings and Borrowers shall continue to be in
compliance with the financial covenants set forth in Annex G for the one-year period
thereafter; and (z) Holdings and Borrowers have completed their due diligence investigation with
respect to the Target and such Permitted Acquisition, which investigation was conducted in a manner
similar to that which would have been conducted by a prudent purchaser of a comparable business and
the results of which investigation were delivered to Agents and Lenders;

          (x) at least 10 Business Days prior to the closing date of such Permitted Acquisition, Agent
shall have received all copies of (or drafts thereof which shall be in substantially final form)
the acquisition agreement and all related agreements and instruments, including, without
limitation, all seller paper to be issued in connection with such Permitted Acquisition, and all
opinions, certificates, lien search results and other documents reasonably requested by such Agent,
including, without limitation, those specified in Section 5.9, all of which shall be in
form and substance satisfactory to such Agent; and

          (xi) at the time of such Permitted Acquisition and after giving effect thereto, no Default or
Event of Default has occurred and is continuing.

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Notwithstanding the foregoing, neither the Accounts nor the Inventory of the Target shall be
included in Eligible Accounts and Eligible Inventory without the prior determination by Agent that
such Accounts and Inventory are acceptable for inclusion as Eligible Accounts and Eligible
Inventory, based on such field examinations, collateral audits, appraisals and other analysis, if
any, as Agent deems appropriate, copies of which field examinations, collateral audits, appraisals
and other analyses shall be provided to Lenders.

     6.2 Investments; Loans and Advances.

     Except as otherwise expressly permitted by this Section 6, no Credit Party shall make
or permit to exist any investment in, or make, accrue or permit to exist loans or advances of money
to, any Person, through the direct or indirect lending of money, holding of securities or
otherwise, except that: (a) WESCO Distribution and WESCO DC LP may hold investments comprised of
notes payable, or stock or other securities issued by Account Debtors to WESCO Distribution or
WESCO DC LP, as the case may be, pursuant to negotiated agreements with respect to settlement of
such Account Debtor’s Accounts in the ordinary course of business, so long as the aggregate amount
of such Accounts so settled by WESCO Distribution and WESCO DC LP does not exceed $5,000,000 (in
the case of WESCO DC LP, determined on the basis of the Dollar Equivalent Amount thereof); (b) each
Credit Party may maintain its existing investments in its Subsidiaries as of the Closing Date; (c)
Borrowers may consummate the CSC Acquisition and any Permitted Acquisition pursuant to the terms
and conditions of Section 6.1 hereof; (d) investments made after the Closing Date in
Subsidiaries of Borrowers that are domiciled outside the United States and Canada in an aggregate
amount outstanding at any time that when added to the then outstanding amount of Indebtedness
permitted pursuant to Section 6.3(a)(xiii) does not exceed $5,000,000; (e) so long as no
Default or Event of Default has
occurred and is continuing, WESCO Distribution may make investments, (1) so long as any Loan
is outstanding and if average daily Borrowing Availability for the 90-day period preceding such
investment would have exceeded $25,000,000 and such Borrowing Availability of at least $25,000,000
shall continue for at least 90 days after giving effect to such investment, in an outstanding
amount not to exceed $15,000,000 at any time, or (2) so long as no Loan, excluding Letters of
Credit, is outstanding and if average daily Borrowing Availability for the 90-day period preceding
such investment is at least $25,000,000 and such Borrowing Availability of at least $25,000,000
shall continue for at least 90 days after giving effect to such investment, in an outstanding
amount not to exceed $50,000,000 at any time, in (i) marketable direct obligations issued or
unconditionally guaranteed by the United States of America or any agency thereof maturing within
one year from the date of acquisition thereof, (ii) commercial paper maturing no more than one year
from the date of creation thereof and currently having one of the two highest ratings obtainable
from either Standard & Poor’s Ratings Group or Moody’s Investors Service, Inc., (iii) certificates
of deposit maturing no more than one year from the date of creation thereof issued by commercial
banks incorporated under the laws of the United States of America, each having combined capital,
surplus and undivided profits of not less than $300,000,000 and having a senior unsecured rating of
“A” or better by a nationally recognized rating agency (an “A Rated Bank”), (iv) time
deposits maturing no more than 30 days from the date of creation thereof with A Rated Banks and (v)
mutual funds that invest solely in one or more of the investments described in clauses (i)
through (iv) above; and (f) WDC Holding may transfer the shares of capital Stock of CSC
Holdings to WESCO Canada in connection with the CSC Acquisition.

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     6.3 Indebtedness.

     (a) No Credit Party shall create, incur, assume or permit to exist any Indebtedness, except
(without duplication):

          (i) Indebtedness secured by purchase money security interests and Capital Leases permitted in
Section 6.7(c);

          (ii) the Loans and the other Obligations;

          (iii) Unfunded pension fund and other employee benefit plan obligations and liabilities to the
extent they are permitted to remain unfunded under applicable law;

          (iv) Existing Indebtedness described in Disclosure Schedule (6.3) and refinancings
thereof or amendments or modifications thereof that do not have the effect of increasing the
principal amount thereof or changing the amortization thereof (other than to extend the same) and
that are otherwise on terms and conditions no less favorable to any Credit Party, any Agent or any
Lender, as determined by the Agent, than the terms of the Indebtedness being refinanced, amended or
modified;

          (v) Indebtedness specifically permitted under Section 6.1;

          (vi) Indebtedness pursuant to the Permitted Receivables Financing;

          (vii) Indebtedness in respect of WESCO Distribution’s obligations to Lehman Brothers and
Goldman, Sachs & Co. in connection with their respective Swap Agreements as in effect on (x) with
respect to Lehman Brothers, the Original Closing Date and (y) with respect to Goldman, Sachs & Co.,
the June 2005 Closing Date in an aggregate amount for both such Swap Agreements not to exceed
$30,000,000 and, to the extent that Borrowers elect to do so, in their sole discretion, Letters of
Credit issued under the Agreement supporting such Indebtedness;

          (viii) Indebtedness consisting of intercompany loans and advances made by WESCO Distribution
to any other Credit Party that is a domestic Guarantor (other than Holdings) or by any domestic
Guarantor to WESCO Distribution; provided, that: (A) WESCO Distribution shall have executed
and delivered to each such domestic Guarantor, and each such domestic Guarantor shall have executed
and delivered to WESCO Distribution, on or prior to the Closing Date, a demand note (collectively,
with the demand notes referred to in clause (ix) below, the “Intercompany Notes”) to
evidence any and all such intercompany Indebtedness owing at any time by WESCO Distribution to such
domestic Guarantor or by such domestic Guarantor to WESCO Distribution, which Intercompany Notes
shall be in form and substance satisfactory to Agent (and may, at the option of Borrowers, be
interest bearing notes) and shall be pledged and delivered to Agent pursuant to the applicable
Pledge Agreement or Security Agreement as additional collateral security for the Obligations; (B)
WESCO Distribution shall record all intercompany transactions on its books and records in a manner
satisfactory to Agent; (C) the obligations of WESCO Distribution under any such Intercompany Notes
shall be

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subordinated to the Obligations of Borrowers hereunder in a manner reasonably satisfactory
to Agent; (D) at the time any such intercompany loan or advance is made by WESCO Distribution and
after giving effect thereto, WESCO Distribution shall be Solvent; (E) no Default or Event of
Default would occur and be continuing after giving effect to any such proposed intercompany loan;
(F) other than as set forth on Disclosure Schedule (6.3) with respect to CDW and WESCO
Finance and as contemplated by Section 6.3(a)(xx), Section 6.3(a)(xxi) or otherwise
as expressly permitted under this Section 6.3, the aggregate balance of all such
intercompany loans owing to Borrowers by all such domestic Guarantors shall not exceed $20,000,000
at any one time outstanding; and (G) the recipient of any such intercompany loans shall be
creditworthy as determined by Agent; and provided, further, that,
Indebtedness consisting of intercompany loans and advances made by any US Borrower to any other
Credit Party that is a domestic Guarantor (other than Holdings) or by any domestic Guarantor to any
US Borrower shall also be permitted hereunder if such parties comply with the requirements set
forth in this clause (viii) in a manner satisfactory to Agent;

          (ix) Indebtedness consisting of intercompany loans and advances made by WESCO Distribution to
WESCO DC LP; provided, that (A) WESCO DC LP shall have executed and delivered to WESCO
Distribution, a demand note to evidence any and all such intercompany Indebtedness owing at any
time, which Intercompany Note shall be in form and substance satisfactory to Agent (and may, at the
option of Borrowers, be an interest bearing note) and shall be pledged and delivered to Agent
pursuant to the applicable Pledge Agreement or Security Agreement as additional collateral security
for the Obligations; (B) WESCO Distribution and WESCO DC LP shall each record all intercompany
transactions on their respective books and records in a manner satisfactory to Agent; (C) the
obligation of WESCO DC LP under the Intercompany Note issued by it shall be subordinated to the
Obligations hereunder and under the other Loan Documents in a manner satisfactory to Agent; (D) at the
time any such intercompany loan or advance is made and after giving effect thereto, each of WESCO
Distribution, WESCO Finance and WESCO DC LP shall be Solvent; (E) no Default or Event of Default
would occur and be continuing after giving effect to any such proposed intercompany loan; (F) the
aggregate balance of all such intercompany loans and advances made by WESCO Distribution to WESCO
DC LP shall not exceed $5,000,000 or the Dollar Equivalent Amount thereof at any one time
outstanding; (G) the recipient of any such intercompany loans shall be creditworthy, as determined
by Agent; and (H) to the extent required by applicable law, all such loans and advances shall bear
interest and all applicable withholdings shall be deducted and remitted to the applicable
Governmental Authority when due and payable;

          (x) Indebtedness secured by mortgages on real property owned in fee simple by Borrowers or by
the SPEs pursuant to a Permitted Sale-Leaseback, as set forth on Schedule 6.3;

          (xi) secured or unsecured Indebtedness in an aggregate outstanding amount not to exceed
$20,000,000 incurred in the ordinary course of business, consistent with past practices, comprised
of surety bonds issued to support bid or performance obligations of a Credit Party;
provided, that Agent may impose Reserves with respect to such Indebtedness up to the full
amount of any such Indebtedness at such time as and for so long thereafter as then

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Borrowing
Availability is less than Sixty Million Dollars ($60,000,000) and less the face amount of
any letters of credit issued pursuant to the terms of this Agreement to support such Indebtedness;

          (xii) Indebtedness consisting of intercompany loans and advances made following the Original
Closing Date by WESCO Distribution to Subsidiaries of WESCO Distribution that are domiciled outside
the United States and Canada (other than WESCO Mexico) in an aggregate amount outstanding at any
time that when added to the then outstanding amount of investments permitted pursuant to
Section 6.2(d) does not exceed $5,000,000;

          (xiii) unsecured Indebtedness provided by third-party financial institutions and incurred by
Subsidiaries of WESCO Distribution that are domiciled outside the United States and Canada (other
than WESCO Mexico) not to exceed in the aggregate $3,000,000 (or the Dollar Equivalent Amount
thereof) at any one time outstanding;

          (xiv) Indebtedness arising from Hedging Agreements entered into with a Lender in the ordinary
course of business and not for speculative purposes in the aggregate outstanding amount for all
such Indebtedness in existence at any time during the term of this Agreement not to exceed
$30,000,000;

          (xv) unsecured guaranties not to exceed in the aggregate $3,000,000, at any one time
outstanding, of loans from any Lender to senior managers of Holdings and WESCO Distribution;
provided, that, (A) such loans are made to such senior manager for purposes of
financing such senior manager’s purchases of Holdings’ common Stock and (B) Borrowers shall have
determined in their reasonable discretion that the senior manager to whom such Lender is
making such loan is creditworthy and capable of repaying such loan to such Lender on his or
her own;

          (xvi) unsecured Indebtedness issued after the Closing Date by either WESCO Distribution or
Holdings, in an aggregate amount not to exceed $100,000,000 provided, that (A) the
indenture, notes and other agreements and documents governing any such Indebtedness shall be
satisfactory to Agent, (B) the terms and conditions of any such Indebtedness shall be satisfactory
to Agent, (C) the net proceeds of the issuance of any such Indebtedness are applied to prepay the
Loans pursuant to Section 1.3(b)(ii) hereof and (D) no Default or Event of Default shall
have occurred and be continuing or would occur or be continuing after giving effect to any such
proposed issuance;

          (xvii) Indebtedness comprised of unsecured, subordinated seller paper expressly permitted to
be incurred and outstanding under Section 6.1(iv)(D) in an outstanding amount not to exceed
(a) $70,000,000 at any time prior to the first anniversary of the June 2005 Closing Date and (b)
$50,000,000 thereafter (including any such amount included in clause (a)) during the term of this
Agreement;

          (xviii) Indebtedness consisting of intercompany loans and advances made following the Original
Closing Date by WESCO Distribution to WESCO Mexico in an aggregate amount outstanding at any time
that, when added to the then outstanding amount of Indebtedness permitted pursuant to Section
6.3(a)(xii) shall not exceed $15,000,000 (or the Dollar Equivalent

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Amount thereof) (such that
any Indebtedness consisting of intercompany loans and advances made by WESCO Distribution to WESCO
Mexico in excess of $10,000,000 (or the Dollar Equivalent Amount thereof) shall reduce the amount
of Indebtedness permitted under Section 6.3(a)(xii) in the amount of any such excess);
provided that: (A) WESCO Mexico shall have executed and delivered to WESCO
Distribution a demand note (which shall be an “Intercompany Note” as defined herein) to evidence
any and all such intercompany Indebtedness owing at any time by WESCO Mexico to WESCO Distribution,
which Intercompany Note shall be in form and substance satisfactory to Agent and shall be pledged
and delivered to Agent as additional collateral security for the Obligations and shall be
accompanied by an endorsement executed in blank and any other documentation or other deliveries
necessary or desirable to perfect Agent’s security interest in such Intercompany Note under the
laws of Mexico; (B) Borrowers shall have delivered to Agent, at least 5 Business Days prior to the
incurrence of any such Indebtedness, a duly executed Pledge Agreement in form and substance
satisfactory to the Applicable Agent pledging 65% of the Stock of WESCO Mexico to the Applicable
Agent, accompanied by (as appropriate) (a) share certificates representing all of the outstanding
Stock being pledged pursuant to such Pledge Agreement and stock or share transfer powers for such
share certificates executed in blank and (b) all Intercompany Notes to be pledged pursuant to such
Pledge Agreement, and all such agreements, documents and other information as shall be necessary or
desirable to effectuate such pledge and to perfect the Applicable Agent’s security interest
(including under the laws of Mexico) that such Agent may reasonably request in connection with such
proposed incurrence of Indebtedness, and all such agreements, documents and other information shall
be in form and substance satisfactory to Agent; (C) Borrowers shall have delivered to Agent within
90 days following the incurrence of any such Indebtedness, an opinion of counsel, which counsel
shall be satisfactory to such Agent, opining on, among other things,
the validity of such Pledge Agreement and the perfection of such Agent’s security interest
pursuant thereto (including under the laws of Mexico) and the other documentation executed in
connection with such pledge, which opinion shall be in form and substance satisfactory to Agent;
(D) Borrowers shall record all intercompany transactions on its books and records in a manner
satisfactory to Agent; (E) at the time any such intercompany loan is made by WESCO Distribution and
after giving effect thereto, WESCO Distribution and WESCO Mexico shall each be Solvent; (F) no
Default or Event of Default would occur and be continuing after giving effect to any such proposed
intercompany Indebtedness; and (G) at the time any such intercompany loan is made by WESCO
Distribution and after giving effect thereto, excess Borrowing Availability shall be greater than
Sixty Million Dollars ($60,000,000);

          (xix) secured or unsecured Indebtedness provided by third-party financial institutions and
incurred by WESCO Mexico in an aggregate amount outstanding at any time that, when added to the
then outstanding amount of Indebtedness permitted pursuant to Section 6.3 (xiii), shall not
exceed $10,000,000 (or the Dollar Equivalent Amount thereof) (such that any Indebtedness provided
by third-party financial institutions to WESCO Mexico in excess of $7,000,000 (or the Dollar
Equivalent Amount thereof) shall reduce the amount of Indebtedness permitted under Section
6.3(xiii) in the amount of any such excess); provided, that: (A) such
Indebtedness may only be secured by all or any portion of the assets (but not the Stock) of WESCO
Mexico; (B) there shall be no recourse for such Indebtedness to any other entity other than WESCO
Mexico, including but not limited to Borrowers or any Credit Party; (C) the terms and conditions of
any such Indebtedness shall be satisfactory to Agent; (D) Borrowers

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shall have delivered to Agent,
at least 5 Business Days prior to the incurrence of any such Indebtedness, a duly executed Pledge
Agreement in form and substance satisfactory to Agent pledging 65% of the Stock of WESCO Mexico to
the Applicable Agent, accompanied by share certificates representing all of the outstanding Stock
being pledged pursuant to such Pledge Agreement and stock or share transfer powers for such share
certificates executed in blank; and (E) Borrowers shall have delivered to the Applicable Agent
within 90 days following the incurrence of any such Indebtedness an opinion of counsel, which
counsel shall be satisfactory to Agent, opining on, among other things, the validity of such Pledge
Agreement and the other documentation effecting such pledge, which opinion shall be in form and
substance satisfactory to the Applicable Agent;

          (xx) Indebtedness consisting of intercompany loans and advances made following the Original
Closing Date by WDC Holding to WESCO Canada in an aggregate principal amount at any time
outstanding that shall not exceed $765,000,000 (which shall include amounts owing pursuant to the
CB WESCO NOTE and the WESCO Voltage Note) or the Dollar Equivalent Amount thereof;
provided, that: (A) WESCO Canada shall have executed and delivered to WDC Holding
one or more interest bearing demand notes (which shall each be an “Intercompany Note” as defined
herein) to evidence any and all such intercompany Indebtedness owing at any time by WESCO Canada to
WDC Holding, which Intercompany Notes shall be in form and substance satisfactory to the Applicable
Agent and shall be pledged and delivered to the Applicable Agent as additional collateral security
for the Canadian Obligations and shall be accompanied by an endorsement executed in blank and any
other documentation or other deliveries necessary or desirable to perfect the Applicable Agent’s
security interest in such Intercompany Notes; (B) each such Credit Party shall record all
intercompany transactions on its books and records in a manner satisfactory to the Applicable
Agent; (C) the obligations of WESCO Canada under any such Intercompany Notes shall be subordinated to the Obligations
hereunder and under the other Loan Documents in a manner reasonably satisfactory to the Applicable
Agent; (D) at the time such intercompany loan is made by WDC Holding and after giving effect
thereto, WDC Holding and WESCO Canada shall each be Solvent, and (E) no Default or Event of Default
shall have then occurred and be continuing or would occur and be continuing after giving effect to
any such proposed intercompany Indebtedness;

          (xxi) Indebtedness consisting of intercompany loans and advances made following the Closing
Date by WESCO Distribution to WDC Holding in an aggregate principal amount at any time outstanding
that shall not exceed $300,000,000 or the Dollar Equivalent Amount thereof; provided,
that: (A) WDC Holding shall have executed and delivered to WESCO Distribution one or more
demand notes (which shall each be an “Intercompany Note” as defined herein) to evidence any and all
such intercompany Indebtedness owing at any time by WDC Holding to WESCO Distribution, which
Intercompany Notes shall be in form and substance satisfactory to Agent and shall be pledged and
delivered to Agent as additional collateral security for the Obligations and shall be accompanied
by an endorsement executed in blank and any other documentation or other deliveries necessary or
desirable to perfect Agent’s security interest in such Intercompany Notes; (B) each such Credit
Party shall record all intercompany transactions on its books and records in a manner satisfactory
to Agent; (C) the obligations of WDC Holding under any such Intercompany Notes shall be
subordinated to the

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Obligations hereunder and under the other Loan Documents in a manner reasonably
satisfactory to Agent; (D) at the time such intercompany loan is made by WESCO Distribution and
after giving effect thereto, WESCO Distribution and WDC Holding shall each be Solvent, and (E) no
Default or Event of Default shall have then occurred and be continuing or would occur and be
continuing after giving effect to any such proposed intercompany Indebtedness;

          (xxii) Indebtedness of Holdings existing prior to the Closing Date and consisting of those
certain convertible senior debentures issued by Holdings which shall (i) be unsecured, (ii) mature
at least one (1) year subsequent to the Commitment Termination Date, (iii) be in a principal amount
not to exceed $150,000,000, and (iv) be otherwise in form and substance satisfactory to the Agent;

          (xxiii) unsecured, subordinated Indebtedness of WESCO Distribution consisting of those certain
senior subordinated notes issued by WESCO Distribution and in existence prior to the Closing Date,
which shall (i) be unsecured, (ii) mature at least one (1) year subsequent to the Commitment
Termination Date, (iii) be in an aggregate principal amount not to exceed $150,000,000, and (iv) be
otherwise in form and substance satisfactory to the Agent;

          (xxiv) Indebtedness of Holdings consisting of convertible senior debentures issued by Holdings
(the “2006 Convertible Debentures”) which shall (i) be unsecured, (ii) mature at least one
(1) year subsequent to the Commitment Termination Date, (iii) be in a principal amount not to
exceed $300,000,000 and (iv) be otherwise in form and substance satisfactory to the Agent;

          (xxv) unsecured guaranties by Holdings of the obligations of WESCO Distribution not to exceed
(a) $150,000,000 in aggregate principal amount in respect of the
issuance of any Indebtedness pursuant to clause (xxiii) above, and (b) $100,000,000 in
aggregate principal amount in respect of the issuance of any Indebtedness by WESCO Distribution
pursuant to clause (xvi) above;

          (xxvi) unsecured guaranties by WESCO Distribution of the obligations of Holdings not to exceed
(a) $150,000,000 in aggregate principal amount in respect of the issuance of any Indebtedness
pursuant to clause (xxii) above, (b) $100,000,000 in aggregate principal amount in respect of the
issuance of any Indebtedness by Holdings pursuant to clause (xvi) above and (c) up to $300,000,000
in aggregate principal amount in respect of the issuance of any Indebtedness pursuant to clause
(xxiv) above; and

          (xxvii) other unsecured, subordinated Indebtedness up to $5,000,000 in the aggregate at any
one time outstanding.

     (b) Except as set forth in Section 6.14(g) and Section 6.14(h), no Credit
Party shall, directly or indirectly, voluntarily purchase, redeem, defease or prepay any principal
of, premium, if any, interest or other amount payable in respect of any Indebtedness, other than
(i) the Obligations; (ii) Indebtedness secured by a Permitted Encumbrance if the asset securing
such Indebtedness has been sold or otherwise disposed of in accordance with Sections 6.8(b)
or (c); (iii) Indebtedness permitted by Section 6.3(a)(iv) upon any refinancing
thereof in accordance

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with Section 6.3(a)(iv); and (iv) intercompany Indebtedness permitted
by Sections 6.3(a)(viii), (ix), (xviii), (xx), (xxii) and
(xxiii).

     6.4 Employee Loans and Affiliate Transactions.

     (a) Other than a Permitted Sale-Leaseback, no Credit Party shall enter into or be a party to
any transaction with any other Credit Party or any Affiliate thereof except in the ordinary course
of and pursuant to the reasonable requirements of such Credit Party’s business and upon fair and
reasonable terms that are no less favorable to such Credit Party than would be obtained in a
comparable arm’s length transaction with a Person not an Affiliate of such Credit Party. In
addition, if any such transaction or series of related transactions involves payments in excess of
$1,000,000 in the aggregate, the terms of these transactions must be disclosed in advance to Agent
and Lenders. All such transactions existing as of the date hereof are described in Disclosure
Schedule (6.4(a)).

     (b) No Credit Party shall enter into any lending or borrowing transaction with any directors,
officers of employees of any Credit Party, except loans to its respective officers and employees on
an arm’s-length basis in the ordinary course of business consistent with past practices for travel
and entertainment expenses, relocation costs and similar purposes up to a maximum of $50,000 to any
officer or employee and up to a maximum of $400,000 in the aggregate at any one time outstanding.

     6.5 Capital Structure and Business.

     No Credit Party shall (a) make any changes in any of its business objectives, purposes or
operations that could in any way adversely affect the repayment of the Loans or any
of the other Obligations or could reasonably be expected to have or result in a Material
Adverse Effect, (b) make any change in its capital structure as described in Disclosure
Schedule (3.8), including the issuance or sale of any shares of Stock, warrants or other
securities convertible into Stock or any revision of the terms of its outstanding Stock; provided,
that Holdings may issue or sell its Stock for cash so long as (i) (A) any issuance of Stock in
connection with the Indebtedness issued, if any, as permitted by Section 6.3(xxiii) hereof
is upon terms and conditions as expressly provided in the documentation relating to such
Indebtedness as received by Agent prior to the Closing Date, including, without limitation, the
conversion provisions contained therein, and (B) the proceeds thereof are applied in prepayment of
the Obligations as required by Section 1.3(b)(iii), and (ii) no Change of Control occurs
after giving effect thereto, or (c) amend its charter or bylaws, unanimous shareholder agreement,
declaration of partnership or partnership agreement in a manner that would adversely affect either
Agent or Lenders or such Credit Party’s duty or ability to repay the Obligations. No Credit Party
shall engage in any business other than the businesses currently engaged in by it or reasonably
related thereto.

     6.6 Guaranteed Indebtedness.

     No Credit Party shall create, incur, assume or permit to exist any Guaranteed Indebtedness
except (a) by endorsement of instruments or items of payment for deposit to the general account of
any Credit Party, (b) for Guaranteed Indebtedness incurred for the benefit of any other Credit
Party if the primary obligation is expressly permitted by this Agreement other

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than Indebtedness,
if any, of a Target existing at the time such Target is acquired and (c) for Guaranteed
Indebtedness incurred pursuant to the management loan guaranty program as described in and
permitted by (but only to the extent permitted by) Section 6.3(xv).

     6.7 Liens.

     No Credit Party nor any Subsidiary thereof shall create, incur, assume or permit to exist any
Lien on or with respect to its Accounts or any of its other properties or assets (whether now owned
or hereafter acquired) except for (a) Permitted Encumbrances; (b) Liens in existence on the date
hereof and summarized on Disclosure Schedule (6.7) securing Indebtedness described on
Disclosure Schedule (6.3) and permitted refinancings, extensions and renewals thereof,
including extensions or renewals of any such Liens; provided that the principal amount so secured
is not increased and the Lien does not attach to any other property; (c) Liens created after the
date hereof by conditional sale or other title retention agreements (including Capital Leases) or
in connection with purchase money Indebtedness with respect to Equipment and Fixtures acquired by
any Credit Party in the ordinary course of business, involving the incurrence of an aggregate
amount of purchase money Indebtedness and Capital Lease Obligations of not more than $4,500,000
outstanding at any one time for all such Liens (provided that such Liens attach only to the
assets subject to such purchase money debt and such Indebtedness is incurred within 20 days
following such purchase and does not exceed 100% of the purchase price of the subject assets); (d)
Liens, if any, in connection with and arising at or after the time of the transfer of Accounts by
Borrowers pursuant to the Permitted Receivables Financing; (e) Liens consisting of mortgages on
real estate owned in fee simple by WESCO Distribution, Herning or WESCO DC LP in favor of Lehman
Brothers and Goldman, Sachs & Co. supporting Borrowers’ respective obligations to them in
connection with the two Swap Agreements permitted under Section
6.3(a)(viii); provided that, a mortgagee waiver satisfactory to Agent has been
delivered to Agent for each property subject to such a mortgage or Reserves satisfactory to Agent
have been established; (f) silent Liens on a last-out basis in the Collateral as provided for in
the Security Agreement in favor of any Lender supporting Borrowers’ obligations to such Lender in
connection with any Hedging Agreements permitted under Section 6.3(a)(xiv); (g) Liens
comprised of mortgages on real property owned in fee simple and security interests in Fixtures and
Equipment related to such mortgaged real property in connection with Indebtedness expressly
permitted under Section 6.3(a)(x), including, without limitation, Section
6.3(a)(x)(A); and (h) Liens in connection with Indebtedness expressly permitted under
Section 6.3 (a)(xi). In addition, other than as provided in the Permitted Receivables
Financing, no Credit Party shall become a party to any agreement, note, indenture or instrument, or
take any other action, that would prohibit the creation of a Lien on any of its properties or other
assets in favor of any Agent, on behalf of itself, the other Agent and Lenders, as additional
collateral for the Obligations, except operating leases, Capital Leases or Licenses which prohibit
Liens upon the assets that are subject thereto; and Section 6.3(a)(xix).

     6.8 Sale of Stock and Assets.

     No Credit Party shall sell, transfer, convey, assign or otherwise dispose of any of its
properties or other assets, including the Stock of any of its Subsidiaries (whether in a public or
a private offering or otherwise) or any of its Accounts, other than (a) the sale of Inventory in

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the ordinary course of business, (b) the sale, transfer, conveyance or other disposition by a
Credit Party of Equipment or Fixtures that are obsolete or no longer used or useful in such Credit
Party’s business and having a book value not exceeding $1,000,000 in any single transaction or
$5,000,000 in the aggregate in any Fiscal Year, (c) other Equipment and Fixtures having a value not
exceeding $250,000 in any single transaction or $500,000 in the aggregate in any Fiscal Year, (d)
the true sale by any US Borrower of Accounts pursuant to the Permitted Receivables Financing, (e)
the sale for consideration comprised solely of cash in the ordinary course of business consistent
with past practices, of real property owned in fee simple by a Credit Party having a value not
exceeding $1,000,000 in any single transaction or $5,000,000 in the aggregate in any Fiscal Year,
and (f) the sale or other disposition in the ordinary course of business of Accounts which do not
constitute Eligible Accounts and for which the Account Debtors are in bankruptcy, insolvent or the
Accounts of which are classified in accordance with GAAP by a Borrower or Credit Party as bad
debts; provided, further, that, in each of the foregoing circumstances, the
entire net proceeds therefrom shall be applied to prepay the Loans (without any corresponding
reduction in the Revolving Loan Commitment). With respect to any disposition of assets or other
properties permitted pursuant to clauses (b), (c) and (f) above, subject to Section
1.3(b), each Applicable Agent agrees on reasonable prior written notice to release its Lien on
such assets or other properties in order to permit the applicable Credit Party to effect such
disposition and shall execute and deliver to Borrower Representative, at Borrowers’ expense,
mutually acceptable documentation evidencing such Agent’s release of its Lien on such assets or
other properties.

     6.9 ERISA.

     No Credit Party shall, or shall cause or permit any ERISA Affiliate to, cause or permit to
occur an event that could result in the imposition of a Lien under Section 412 of the IRC or
Section 302 or 4068 of ERISA or cause or permit to occur an ERISA Event to the extent such ERISA
Event could reasonably be expected to have a Material Adverse Effect.

     6.10 Financial Covenants.

     At any time that excess Borrowing Availability is less than Sixty Million Dollars
($60,000,000), Borrowers shall not breach or fail to comply with any of the Financial Covenants.

     6.11 Hazardous Materials.

     No Credit Party shall cause or permit a Release of any Hazardous Material on, at, in, under,
above, to, from or about any of the Real Estate where such Release would (a) violate in any
respect, or form the basis for any Environmental Liabilities under, any Environmental Laws or
Environmental Permits or (b) otherwise adversely impact the value or marketability of any of the
Real Estate or any of the Collateral, other than such violations or Environmental Liabilities that
could not reasonably be expected to have a Material Adverse Effect.

     6.12 Sale-Leasebacks.

     Other than (i) a Permitted Sale-Leaseback and (ii) a one-time Sale-Leaseback effectuated in
Canada in an amount not to exceed $10,000,000 at any time during the term of this

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Agreement, no
Credit Party shall engage in any sale-leaseback, synthetic lease or similar transaction involving
any of its assets.

     6.13 Cancellation of Indebtedness.

     No Credit Party shall cancel any claim or debt owing to it, except for reasonable
consideration negotiated on an arm’s-length basis and in the ordinary course of its business
consistent with past practices.

     6.14 Restricted Payments.

     No Credit Party shall make any Restricted Payment, except (a) intercompany loans and advances
among Borrowers, Guarantors and other Subsidiaries of Borrowers to the extent, and solely to the
extent, expressly permitted by Section 6.3, (b) dividends and distributions by Subsidiaries
of Borrowers paid to Borrowers (either directly or indirectly through another Subsidiary), (c)
employee loans permitted under Section 6.4(b), (d) payments of principal and interest
pursuant to Intercompany Notes issued in accordance with Section 6.3; (e) scheduled
payments of interest with respect to Subordinated Debt, provided, that no Default or Event
of Default has occurred and is continuing or would result after giving effect to any Restricted
Payment pursuant to this clause (e), (f) dividends and distributions in the ordinary course
of business in accordance with past practices from WESCO Distribution to Holdings solely to enable
Holdings to pay its ordinary course expenses (e.g., reasonable legal and accounting
expenses, directors’ and officers’ insurance premiums and director’s fees and out-of-pocket
reasonable costs and expenses), provided, that (i) no Default or Event of Default has
occurred and is continuing or would result after giving effect to any Restricted Payment pursuant
to clause (f), and (ii) the aggregate amount of all such dividends and distributions from
WESCO Distribution to Holdings pursuant to this clause (f) shall not exceed $3,500,000 in
any Fiscal Year; (g) payments, other than payments covered by clause (h) below, in
connection with the repurchase of either Holdings’ publicly traded Common Stock or any Indebtedness
issued pursuant to Sections 6.3(a)(xxii), (xxiii) and (xxiv) hereof;
provided, that (i) no Default or Event of Default has occurred and is continuing or would
result after giving effect to any Restricted Payment pursuant to this clause (g), and (ii)
Borrowers shall have either (I)(i) demonstrated to Agent’s satisfaction that Holdings and its
Subsidiaries on a consolidated basis and after giving pro forma effect to such Restricted Payment
have a Fixed Charge Coverage Ratio of greater than or equal to 1.25 to 1.0 for the four quarter
period reflected in the Compliance Certificate most recently delivered to Agent and Lenders
pursuant to Annex E of this Agreement (after giving effect to such Restricted Payment as if
made on the first day of such period) and (ii) average daily Borrowing Availability for the 90-day
period preceding the making of such Restricted Payment of more than $35,000,000 on a pro forma
basis (after giving effect to such Restricted Payment as if made on the first day of such period)
and shall have projected average daily Borrowing Availability of more than $35,000,000 for at least
90 days after the making of such Restricted Payment or (II) average daily Borrowing Availability
for the 90-day period preceding the making of such Restricted Payment of more than $60,000,000 on a
pro forma basis (after giving effect to such Restricted Payment as if made on the first day of such
period) and shall have projected average daily Borrowing Availability of more than $60,000,000 for
at least 90 days after the making of such Restricted Payment; (h) payments in connection with the

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repurchase of Holdings’ Indebtedness issued pursuant to Sections 6.3(a)(xxii) and
(xxiv), which payments are made pursuant to the provisions of Section 3.05 of the
respective indentures governing such Holdings Indebtedness; provided, that (i) no Default
or Event of Default has occurred and is continuing or would result after giving effect to any
Restricted Payment pursuant to this clause (h), and (ii) Borrowers shall have (A)
demonstrated to Agent’s satisfaction that Holdings and its Subsidiaries, on a consolidated basis
and after giving pro forma effect to such Restricted Payment, have a Fixed Charge Coverage Ratio of
greater than or equal to 1.25 to 1.0 for the four quarter period reflected in the Compliance
Certificate most recently delivered to Agent and Lenders pursuant to Annex E of this
Agreement (after giving effect to such Restricted Payment as if made on the first day of such
period) and (B) average daily Borrowing Availability for the 90-day period preceding the making of
such Restricted Payment of more than $60,000,000 on a pro forma basis (after giving effect to such
Restricted Payment as if made on the first day of such period) and shall have projected daily
Borrowing Availability of more than $60,000,000 for at least 90 days after making such Restricted
Payment; (i) dividends and distributions from Borrowers to Holdings in an amount equal to Holdings’
then due and payable in cash consolidated, combined or unitary income tax liabilities;
provided, that no Default or Event of Default has occurred and is continuing or would
result after giving effect to any Restricted Payment pursuant to this clause (i); and (j)
dividends and distributions from WESCO Distribution to Holdings solely to enable Holdings to make
payments permitted pursuant to clause (e), clause (g) or clause (h) above.

     6.15 Change of Corporate Name or Location; Change of Fiscal Year.

     No Credit Party shall (a) change its corporate name, trade name or partnership name, (b)
change its jurisdiction of incorporation or formation; or (c) change its chief executive office,
principal place of business, domicile (within the meaning of the Quebec Civil Code), corporate
offices or warehouses or locations at which Collateral is held or stored, or the location of its
records concerning the Collateral, in each case without at least 30 days prior written notice to
Agent and after Agent’s written acknowledgment that any reasonable action requested by either Agent
in connection therewith, including to continue the perfection of any Liens in favor of either
Agent, on behalf of itself and those Lenders, and, if applicable, the other Agent, for whom it acts
as Agent in any Collateral, has been completed or taken, and provided that any such new
location shall be (i) with respect to any US Credit Party, in the continental United States and
(ii) with respect to any Canadian Credit Party, in Canada. Without limiting the foregoing, no
Credit Party shall change its name, identity, corporate structure or jurisdiction of incorporation
or formation in any manner that might make any financing or continuation statement filed in
connection herewith seriously misleading within the meaning of Section 9-402(7) of the Code or any
other then applicable provision of the Code or materially misleading within the meaning of any
applicable law except upon prior written notice to Agent and Lenders and after Agent’s written
acknowledgment that any reasonable action requested by either Agent in connection therewith,
including to continue the perfection of any Liens in favor of either Agent, on behalf of Agent and
those Lenders and, if applicable, the other Agent, for whom it acts as Agent, in any Collateral,
has been completed or taken. No Credit Party shall change its Fiscal Year.

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     6.16 No Impairment of Intercompany Transfers.

     No Credit Party shall directly or indirectly enter into or become bound by any agreement,
instrument, indenture or other obligation (other than this Agreement and the other Loan Documents)
that could directly or indirectly restrict, prohibit or require the consent of any Person with
respect to the payment of dividends or distributions or the making or repayment of intercompany
loans by a Subsidiary of any Borrower to any Borrower or between Borrowers.

     6.17 No Speculative Transactions.

     No Credit Party shall engage in any transaction involving commodity options, futures contracts
or similar transactions, except solely to hedge against fluctuations in the prices of commodities
owned or purchased by it and the values of foreign currencies receivable or payable by it and
interest swaps, caps or collars.

     6.18 Leases; Real Estate Purchases.

     Other than a Permitted Sale-Leaseback, no Credit Party shall enter into any operating lease
for Equipment or real property, if the aggregate of all such operating lease payments payable in
any Fiscal Month for all Credit Parties on a consolidated basis would exceed $4,500,000. With
respect to the Permitted Sale-Leasebacks, the aggregate amount of all lease payments payable
thereunder by any and all Credit Parties to any and all SPEs in any Fiscal Month shall not exceed,
on a consolidated basis for all Credit Parties, $1,000,000 as rent, plus
any other amounts payable under the triple net provisions of the leases, such as amounts for
repairs, maintenance, taxes or utilities.

     6.19 Changes Relating to Subordinated Debt; Material Contracts.

     (a) No Credit Party shall change or amend the terms of any Subordinated Debt (or any indenture
or other agreement, instrument or document in connection therewith) if the effect of such amendment
is to: (a) increase the interest rate on such Subordinated Debt; (b) change the dates upon which
payments of principal or interest are due on such Subordinated Debt other than to extend such
dates; (c) change any default or event of default other than to delete or make less restrictive any
default provision therein, or add any covenant with respect to such Subordinated Debt; (d) change
the redemption or prepayment provisions of such Subordinated Debt other than to extend the dates
therefor or to reduce the premiums payable in connection therewith; (e) grant any security or
collateral to secure payment of such Subordinated Debt; or (f) change or amend any other term if
such change or amendment would increase the obligations of the Credit Party thereunder or confer
additional rights on the holder of such Subordinated Debt in a manner adverse to any Credit Party,
Agent or any Lender; provided, however, that, notwithstanding the
foregoing, following the Closing Date WESCO Distribution or Holdings may issue up to an additional
$100,000,000 in principal amount of unsecured Indebtedness, provided, that such
issuance is in compliance with the terms of Section 6.3(a)(xvi), Section 1.3(b) and
the other provisions of this Agreement.

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     (b) No Credit Party shall change or amend the terms of any Swap Agreement or any agreement,
instrument or document relating thereto, without the prior written consent of Agent.

     (c) No Credit Party shall nor shall any Credit Party permit any Subsidiary thereof to change
or amend the terms of any of the agreements, instruments or other documents executed in connection
with a Permitted Sale-Leaseback in a fashion materially adverse to Borrowers, any other Credit
Party or any Subsidiary thereof, any Agent or any Lender without the prior written consent of
Agent.

     (d) No Credit Party shall nor shall any Credit Party permit any Subsidiary thereof to change
or amend the terms of the Promissory Note without the prior written consent of Agent.

     6.20 Holdings, WESCO Finance, WDC Holding, WESCO Canada, WESCO DC GP and WESCO
Voltage.

     (a) Holdings shall not engage in any trade or business other than incident to its ownership of
the Stock of WESCO Distribution and WESCO Finance, own any assets other than the Stock of WESCO
Distribution and WESCO Finance or incur any Indebtedness or Guaranteed Indebtedness other than the
Obligations and the Indebtedness or Guaranteed Indebtedness issued pursuant to Section
6.3(a)(xvi),(xxii) or (xxiv).

     (b) WESCO Finance shall not engage in any trade or business other than as contemplated in
Section 6.3, incident to its ownership of Stock in WESCO Equity and as set forth in
Disclosure Schedule 6.20(b), own any assets other than Stock in WESCO Equity and as set
forth in Disclosure Schedule 6.20(b) or incur any Indebtedness or Guaranteed Indebtedness
other than the Obligations and as expressly permitted under Section 6.3.

     (c) WDC Holding shall not engage in any trade or business other than as contemplated in
Section 6.3, incident to its ownership of Stock and debt of WESCO Canada and as set forth
in Disclosure Schedule 6.20(c), own any assets other than Stock and debt of WESCO Canada
and as set forth in Schedule 6.20(c) or incur any Indebtedness or Guaranteed Indebtedness
other than the Obligations and as expressly permitted under Section 6.3.

     (d) WESCO Canada shall not engage in any trade or business other than as contemplated in
Section 6.3, incident to its ownership of Stock of WESCO Receivables, WESCO DC GP, WESCO DC
LP and WESCO Nevada and, following the CSC Acquisition, CSC Holdings and as set forth in
Disclosure Schedule 6.20(d), own any assets other than Stock and debt of WESCO Receivables,
WESCO DC GP, WESCO DC LP or WESCO Nevada and, following the CSC Acquisition, CSC Holdings and as
set forth in Schedule 6.20(d) or incur any Indebtedness or Guaranteed Indebtedness other
than the Obligations and as expressly permitted under Section 6.3.

     (e) WESCO DC GP shall not engage in any trade or business other than as contemplated in
Section 6.3, incident to its role as general partner of WESCO DC LP and its ownership of
Stock and debt of WESCO DC LP and as set forth in Disclosure Schedule 6.20(e),

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own any
assets other than Stock and debt of WESCO DC LP and as set forth in Schedule 6.20(e) or
incur any Indebtedness or Guaranteed Indebtedness other than the Obligations and as expressly
permitted under Section 6.3.

     (f) prior to the consummation of the CSC Acquisition, WESCO Voltage shall not engage in any
trade or business, own any assets or incur any Indebtedness or Guaranteed Indebtedness other than
as expressly permitted under Section 6.3.

     (g) CSC Holdings shall not engage in any trade or business other than incident to its
ownership of the Stock of the CSC Borrowers, own any assets other than the Stock of the CSC
Borrowers or incur any Indebtedness or Guaranteed Indebtedness.

     6.21 Negative Pledge.

     Other than Liens on real property owned solely by SPEs in favor of a Mortgage Lender, and
related restrictions on the creation of additional Liens on real property owned solely by SPEs,
pursuant to Permitted Sale-Leasebacks, no Credit Party shall enter into or suffer to exist or
permit any of its Subsidiaries to enter into or suffer to exist, any agreement prohibiting or
conditioning the creation or assumption of any Lien upon any of its real property assets, other
than as expressly permitted in this Agreement.

     6.22 Non-Canadian Foreign Subsidiaries.

     No Borrower nor any other Credit Party shall permit any Borrower’s non-Canadian, foreign
Subsidiaries to individually have assets and properties in excess of $15,000,000 (or the Dollar
Equivalent Amount thereof) or, in the aggregate for all non-Canadian foreign Subsidiaries, to have
aggregate assets and properties in excess of $25,000,000.

     6.23 CDW.

     CDW shall at all times be the sole owner of any and all equity interests in any and all SPEs.
Notwithstanding any other provisions of this Agreement or any other Loan Document, CDW shall not be
required to pledge, and shall not be deemed to have pledged, the equity interests in any SPE to
either Agent, on behalf of itself and Lenders, as Collateral. CDW shall not permit, or suffer to
exist, at any time any Lien on any equity interest in any SPE. Except as otherwise expressly
permitted by another provision of this Agreement, CDW does not now and shall not at any time: (i)
conduct any business other than incident to its ownership of real property in the ordinary course
of business consistent with past practices or its ownership of all of the equity interests in any
and all SPEs, (ii) have any assets other than real property or the equity interests in SPEs or
(iii) have any trade creditors or any other creditors other than in connection with obligations, if
any, to utilities or other like creditors or for real estate taxes incident to its ownership of
real property.

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7. TERM

     7.1 Termination.

     The financing arrangements contemplated hereby shall be in effect until the Commitment
Termination Date, and the Loans and all other Obligations shall be automatically due and payable in
full on such date.

     7.2 Survival of Obligations Upon Termination of Financing Arrangements.

     Except as otherwise expressly provided for in the Loan Documents, no termination or
cancellation (regardless of cause or procedure) of any financing arrangement under this Agreement
shall in any way affect or impair the obligations, duties and liabilities of the Credit Parties or
the rights of either Agent and Lenders relating to any unpaid portion of the Loans or any other
Obligations, due or not due, liquidated, contingent or unliquidated or any transaction or event
occurring prior to such termination, or any transaction or event, the performance of which is
required after the Commitment Termination Date. Except as otherwise expressly provided herein or
in any other Loan Document, all undertakings, agreements, covenants, warranties and representations
of or binding upon the Credit Parties, and all rights of Agent and each Lender, all as contained in
the Loan Documents, shall not terminate or expire, but rather shall survive any such termination or
cancellation and shall continue in full force and effect until the Termination Date;
provided, that the provisions of Section 11, the payment
obligations under Sections 1.15 and 1.16, and the indemnities contained in the
Loan Documents shall survive the Termination Date.

8. EVENTS OF DEFAULT; RIGHTS AND REMEDIES

     8.1 Events of Default.

     The occurrence of any one or more of the following events (regardless of the reason therefor)
shall constitute an “Event of Default” hereunder:

     (a) Any Borrower (i) fails to make any payment of principal of, or interest on, or Fees owing
in respect of, the Loans or any of the other Obligations when due and payable, or (ii) fails to pay
or reimburse either Agent or Lenders for any expense reimbursable hereunder or under any other Loan
Document within 10 days following the Applicable Agent’s demand for such reimbursement or payment
of expenses.

     (b) Any Credit Party fails or neglects to perform, keep or observe any of the provisions of
Sections 1.4, 1.8, 5.4(a), 5.11, or 6, or any of the
provisions set forth in Annexes C or G, respectively.

     (c) Any Borrower fails or neglects to perform, keep or observe any of the provisions of
Section 4 or any provisions set forth in Annexes E or F, respectively, and the same
shall remain unremedied for 3 days or more.

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     (d) Any Credit Party fails or neglects to perform, keep or observe any other provision of this
Agreement or of any of the other Loan Documents (other than any provision embodied in or covered by
any other clause of this Section 8.1) and the same shall remain unremedied for 30 days or
more.

     (e) A default or breach occurs under any other agreement, document or instrument to which any
Credit Party is a party that is not cured within any applicable grace period therefor, and such
default or breach (i) involves the failure to make any payment when due in respect of any
Indebtedness or Guaranteed Indebtedness (other than the Obligations) of any Credit Party in excess
of $2,500,000 in the aggregate (including (x) undrawn committed or available amounts and (y)
amounts owing to all creditors under any combined or syndicated credit arrangements), or (ii)
causes, or permits any holder of such Indebtedness or Guaranteed Indebtedness of $2,500,000 or a
trustee to cause, Indebtedness or Guaranteed Indebtedness or a portion thereof in excess of in the
aggregate to become due prior to its stated maturity or prior to its regularly scheduled dates of
payment, or cash collateral to be demanded in respect thereof, in each case, regardless of whether
such default is waived, or such right is exercised, by such holder or trustee.

     (f) Any information contained in any Borrowing Base Certificate is untrue or incorrect in any
respect or any representation or warranty herein or in any Loan Document or in any written
statement, report, financial statement or certificate (other than a Borrowing Base Certificate)
made or delivered to either Agent or any Lender by any Credit Party is untrue or incorrect in any
material respect as of the date when made or deemed made.

     (g) Assets of any Credit Party with a fair market value of $500,000 or more are attached,
seized, levied upon or subjected to a writ or distress warrant, or come within the possession of
any interim receiver, receiver, receiver and manager, trustee, custodian or assignee for the
benefit of creditors of any Credit Party and such condition continues for 30 days or more.

     (h) A case or proceeding is commenced against any Credit Party seeking a decree or order in
respect of such Credit Party (i) under the Bankruptcy Code or any other applicable federal, state
or foreign bankruptcy or other similar law, including, without limitation, any Insolvency Law, (ii)
appointing a custodian, interim receiver, receiver, receiver and manager, liquidator, assignee,
trustee or sequestrator (or similar official) for such Credit Party or for any substantial part of
any such Credit Party’s assets, or (iii) ordering the winding-up or liquidation of the affairs of
such Credit Party, and such case or proceeding shall remain undismissed or unstayed for 60 days or
more or a decree or order granting the relief sought in such case or proceeding by a court of
competent jurisdiction.

     (i) Any Credit Party (i) files a petition (or similar proceeding, including an application for
a stay order or filing of a proposal or notice of intention to file a proposal) seeking relief
under the Bankruptcy Code or any other applicable federal, state or foreign bankruptcy or other
similar law, including, without limitation, any Insolvency Law, (ii) consents to or fails to
contest in a timely and appropriate manner to the institution of proceedings thereunder or to the
filing of any such petition or to the appointment of or taking possession by a custodian, interim
receiver, receiver, receiver and manager, liquidator, assignee, trustee or sequestrator (or similar
official) for such Credit Party or for any substantial part of any such

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Credit Party’s assets,
(iii) makes an assignment for the benefit of creditors, or (iv) takes any action in furtherance of
any of the foregoing, or (v) admits in writing its inability to, or is generally unable to, pay its
debts as such debts become due or otherwise is insolvent.

     (j) A final judgment or judgments for the payment of money in excess of $1,000,000 in the
aggregate at any time are outstanding against one or more of the Credit Parties and the same are
not, within 30 days after the entry thereof, discharged or execution thereof stayed or bonded
pending appeal, or such judgments are not discharged prior to the expiration of any such stay.

     (k) Any material provision of any Loan Document for any reason ceases to be valid, binding and
enforceable in accordance with its terms (or any Credit Party shall challenge the enforceability of
any Loan Document or shall assert in writing, or engage in any action or inaction based on any such
assertion, that any provision of any of the Loan Documents has ceased to be or otherwise is not
valid, binding and enforceable in accordance with its terms), or any Lien created under any Loan
Document ceases to be a valid and perfected first priority Lien (except as otherwise permitted
herein or therein) in any of the Collateral purported to be covered thereby.

     (l) Any Change of Control occurs.

     (m) Any event occurs, whether or not insured or insurable, as a result of which
revenue-producing activities cease or are substantially curtailed at any facility or facilities of
any Credit Party generating more than 5% of the consolidated revenues of Holdings and its
Subsidiaries for the Fiscal Year preceding such event and such cessation or curtailment continues
for more than 20 days.

     (n) The occurrence of any Termination Event (as defined in the Permitted Receivables Financing
documents) or of any other similar event or occurrence under the Permitted Receivables Financing or
the documents entered into in connection therewith.

     8.2 Remedies.

     (a) If any Default or Event of Default has occurred and is continuing, the Applicable Agent
may (and at the written request of the Requisite Lenders shall and the Canadian Agent shall at the
written request of the Agent), without notice, suspend the applicable Revolving Loan facility with
respect to additional Advances and/or the incurrence of additional Letter of Credit Obligations,
whereupon any additional Advances and additional Letter of Credit Obligations shall be made or
incurred in the Applicable Agent’s sole discretion (or in the sole discretion of the Requisite
Lenders, if such suspension occurred at their direction) so long as such Default or Event of
Default is continuing. If any Default or Event of Default has occurred and is continuing, the
Applicable Agent may (and at the written request of Requisite Lenders shall), without notice except
as otherwise expressly provided herein, increase the rate of interest applicable to the Loans and
the Letter of Credit Fees to the Default Rate.

     (b) If any Event of Default has occurred and is continuing, each Agent may (and at the written
request of the Requisite Lenders shall), without notice: (i) terminate the

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Revolving Loan facility
with respect to further Advances or the incurrence of further Letter of Credit Obligations; (ii)
declare all or any portion of the Obligations, including all or any portion of any Loan to be
forthwith due and payable, and require that the Letter of Credit Obligations be cash collateralized
as provided in Annex B, all without presentment, demand, protest or further notice of any
kind, all of which are expressly waived by Borrowers and each other Credit Party; or (iii) exercise
any rights and remedies provided to Agent under the Loan Documents or at law or equity, including
all remedies provided under the Code; provided, that upon the occurrence of an Event of
Default specified in Sections 8.1(h) or (i), the Revolving Loan facility shall be
immediately terminated and all of the Obligations, including the Revolving Loan, shall become
immediately due and payable without declaration, notice or demand by any Person.

     8.3 Waivers by Credit Parties.

     Except as otherwise provided for in this Agreement or by applicable law, each Credit Party
waives (including for purposes of Section 12): (a) presentment, demand and protest and notice of
presentment, dishonor, notice of intent to accelerate, notice of acceleration, protest, default,
nonpayment, maturity, release, compromise, settlement, extension or renewal of any or all
commercial paper, accounts, contract rights, documents, instruments, chattel paper and guaranties
at any time held by either Agent on which any Credit Party may in any way be liable, and hereby
ratifies and confirms whatever such Agent may do in this regard, (b) all rights to notice and a
hearing prior to either Agent’s taking possession or control of, or to either Agent’s replevy,
attachment or levy upon, the Collateral or any bond or security that might be required by
any court prior to allowing such Agent to exercise any of its remedies, and (c) the benefit of
all valuation, appraisal, marshaling and exemption laws.

9. ASSIGNMENT AND PARTICIPATIONS; APPOINTMENT OF AGENTS

     9.1 Assignment and Participations.

     (a) Subject to the terms of this Section 9.1, any Lender may make an assignment to a
Qualified Assignee of, or sale of participations in, at any time or times, the Loan Documents,
Loans, Letter of Credit Obligations and any Commitment or any portion thereof or interest therein,
including any Lender’s rights, title, interests, remedies, powers or duties thereunder. Any
assignment by a Lender shall: (i) require the consent of Agent, which consent shall not be
unreasonably withheld or delayed with respect to a Qualified Assignee, and, so long as no Default
or Event of Default has occurred and is continuing, the Borrower Representative, which consent
shall not be unreasonably withheld or delayed with respect to a Qualified Assignee;
provided, however, that no such consent shall be required with respect to a
Qualified Assignee that is a wholly-owned Affiliate of such Lender, so long as at the time of
transfer to such Affiliate and upon such Affiliate becoming a Lender, it shall not be entitled to
any payment from any Borrower and any other Credit Party under Sections 1.15 or
1.16; and the execution of an assignment agreement (an “Assignment Agreement”
substantially in the form attached hereto as Exhibit 9.1(a) and otherwise in form and
substance reasonably satisfactory to, and acknowledged by, Agent; (ii) be conditioned on such
assignee Lender representing to the assigning Lender and Agent that it is purchasing the applicable
Loans to be assigned to it for its own account, for investment purposes and not with a view to the
distribution thereof; (iii) after giving effect to any such partial assignment, the assignee Lender
shall have Commitments in an amount at least equal to $5,000,000 and the assigning Lender shall
have retained Commitments in an

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amount at least equal to $5,000,000; and (iv) include a payment to
Agent of an assignment fee of $3,500. In the case of an assignment by a Lender under this
Section 9.1, the assignee shall have, to the extent of such assignment, the same rights,
benefits and obligations as all other Lenders hereunder. The assigning Lender shall be relieved of
its obligations hereunder with respect to its Commitments or assigned portion thereof from and
after the date of such assignment. Each Borrower hereby acknowledges and agrees that any
assignment shall give rise to a direct obligation of each Borrower to the assignee and that the
assignee shall be considered to be a “Lender”. In all instances, each Lender’s liability to make
Loans hereunder shall be several and not joint and shall be limited to such Lender’s Pro Rata Share
of the applicable Commitment. In the event any Agent or any Lender assigns or otherwise transfers
all or any part of the Obligations, any such Agent or any such Lender shall so notify Borrower
Representative and Borrowers shall, upon the request of Agent or such Lender, execute new Notes in
exchange for the Notes, if any, being assigned. Notwithstanding the foregoing provisions of this
Section 9.1(a), any Lender may at any time pledge the Obligations held by it and such
Lender’s rights under this Agreement and the other Loan Documents to a Federal Reserve Bank, and
any lender that is an investment fund may assign the Obligations held by it and such Lender’s
rights under this Agreement and the other Loan Documents to another investment fund managed by the
same investment advisor; provided, that no such pledge to a Federal Reserve Bank shall
release such Lender from such Lender’s obligations hereunder or under any other Loan Document. Any
foreign Person that seeks to become a Lender under this Agreement shall provide a Certificate of
Exemption to Borrower Representative and Agent prior to becoming a Lender hereunder. No
foreign Person may become a Lender hereunder if such Person fails to deliver a Certificate of
Exemption in advance of becoming a Lender.

     (b) Any participation by a Lender of all or any part of its Commitments shall be made with the
understanding that all amounts payable by Borrowers hereunder shall be determined as if that Lender
had not sold such participation, and that the holder of any such participation shall not be
entitled to require such Lender to take or omit to take any action hereunder except actions
directly affecting (i) any reduction in the principal amount of, or interest rate or Fees payable
with respect to, any Loan in which such holder participates, (ii) any extension of the scheduled
amortization of the principal amount of any Loan in which such holder participates or the final
maturity date thereof, and (iii) any release of all or substantially all of the Collateral (other
than in accordance with the terms of this Agreement, the Collateral Documents or the other Loan
Documents). Solely for purposes of Sections 1.13, 1.15, 1.16 and
9.8, each Borrower acknowledges and agrees that a participation shall give rise to a direct
obligation of each Borrower to the participant and the participant shall be considered to be a
“Lender”. Except as set forth in the preceding sentence neither any Borrower nor any other Credit
Party shall have any obligation or duty to any participant. Neither Agent nor any Lender (other
than the Lender selling a participation) shall have any duty to any participant and may continue to
deal solely with the Lender selling a participation as if no such sale had occurred.

     (c) Except as expressly provided in this Section 9.1, no Lender shall, as between each
Borrower and that Lender, or each Agent and that Lender, be relieved of any of its obligations
hereunder as a result of any sale, assignment, transfer or negotiation of, or granting

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of participation in, all or any part of the Loans, the Notes or other Obligations owed to such Lender.

     (d) Each Credit Party executing this Agreement shall assist any Lender permitted to sell
assignments or participations under this Section 9.1 as reasonably required to enable the
assigning or selling Lender to effect any such assignment or participation, including the execution
and delivery of any and all agreements, notes and other documents and instruments as shall be
requested and the preparation of informational materials for, and the participation of management
in meetings with, potential assignees or participants. Each Credit Party executing this Agreement
shall certify the correctness, completeness and accuracy of all descriptions of the Credit Parties
and their respective affairs contained in any selling materials provided by it and all other
information provided by it and included in such materials, except that any Projections delivered by
Borrowers shall only be certified by Borrowers as having been prepared by Borrowers in compliance
with the representations contained in Section 3.4(c).

     (e) A Lender may furnish any information concerning Credit Parties in the possession of such
Lender from time to time to assignees and participants (including prospective assignees and
participants); provided that such Lender shall obtain from assignees or participants
confidentiality covenants substantially equivalent to those contained in Section 11.8.

     (f) So long as no Event of Default has occurred and is continuing, no Lender shall assign or
sell participations in any portion of its Loans or Commitments to a potential Lender or
participant, if, as of the date of the proposed assignment or sale, the assignee Lender or
participant would be subject to capital adequacy or similar requirements under Section
1.16(a), increased costs under Section 1.16(b), an inability to fund LIBOR Loans under
Section 1.16(c), or withholding taxes in accordance with Section 1.15(a).

     (g) Notwithstanding anything to the contrary contained herein, any Lender (a “Granting
Lender”), may grant to a special purpose funding vehicle (an “SPC”), identified as such
in writing by the Granting Lender to Agent and Borrower Representative, the option to provide to
Borrowers all or any part of any Loans that such Granting Lender would otherwise be obligated to
make to Borrower pursuant to this Agreement; provided that (i) nothing herein shall
constitute a commitment by any SPC to make any Loan; and (ii) if an SPC elects not to exercise such
option or otherwise fails to provide all or any part of such Loan, the Granting Lender shall be
obligated to make such Loan pursuant to the terms hereof. The making of a Loan by an SPC hereunder
shall utilize the Commitment of the Granting Lender to the same extent, and as if such Loan were
made by such Granting Lender. No SPC shall be liable for any indemnity or similar payment
obligation under this Agreement (all liability for which shall remain with the Granting Lender).
Any SPC may (i) with notice to, but without the prior written consent of, Borrower Representative
and Agent and after paying any processing fee therefor assign all or a portion of its interests in
any Loans to the Granting Lender or to any financial institutions (consented to by Borrower
Representative and Agent) providing liquidity and/or credit support to or for the account of such
SPC to support the funding or maintenance of Loans and (ii) disclose on a confidential basis any
non-public information relating to its Loans to any rating agency, commercial paper dealer or
provider of any surety, guarantee or credit or liquidity enhancement to such SPC. This Section
9.1(g) may not be amended without the prior written consent of each

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Granting Lender, all or any
of whose Loans are being funded by an SPC at the time of such amendment. For the avoidance of
doubt, the Granting Lender shall for all purposes, including without limitation, the approval of
any amendment or waiver of any provision of any Loan Document or the obligation to pay any amount
otherwise payable by the Granting Lender under the Loan Documents, continue to be the Lender of
record hereunder.

     9.2 Appointment of Agents.

     GE Capital is hereby appointed to act as Agent on behalf of all US Lenders and Canadian Agent
with respect to the administration of Loans made to US Borrowers and to act as agent on behalf of
all Lenders and Canadian Agent with respect to Collateral owned by a US Credit Party under this
Agreement and the other Loan Documents. GE Capital Canada is hereby appointed to act as Canadian
Agent on behalf of all Canadian Lenders with respect to the administration of all Loans made to
Canadian Borrowers and to act as Canadian Agent on behalf of all Canadian Lenders with respect to
Collateral owned by a Canadian Credit Party under this Agreement and the other Loan Documents. The
provisions of this Section 9.2 are solely for the benefit of Agents and Lenders and no
Credit Party nor any other Person shall have any rights as a third party beneficiary of any of the
provisions hereof. In performing its functions and duties under this Agreement and the other Loan
Documents, the Agents shall act solely as agents of Lenders and do not assume and shall not be
deemed to have assumed any obligation toward or relationship of agency or trust with or for any
Credit Party or any other Person. Neither of the Agents shall have any duties or responsibilities
except for those expressly set forth in this Agreement and the other Loan Documents. The duties of
each of the Agents shall be mechanical
and administrative in nature and neither of the Agents shall have, or be deemed to have, by
reason of this Agreement, any other Loan Document or otherwise a fiduciary relationship in respect
of any Lender. Except as expressly set forth in this Agreement and the other Loan Documents,
neither of the Agents shall have any duty to disclose, and shall not be liable for failure to
disclose, any information relating to any Credit Party or any of their respective Subsidiaries or
any Account Debtor that is communicated to or obtained by GE Capital, GE Capital Canada or any of
their respective Affiliates in any capacity. Neither of the Agents nor any of their respective
Affiliates nor any of their respective officers, directors, employees, agents or representatives
shall be liable to any Lender for any action taken or omitted to be taken by them hereunder or
under any other Loan Document, or in connection herewith or therewith, except for damages caused by
their own gross negligence or willful misconduct.

     The execution by the Canadian Agent as the holder of an irrevocable power of attorney (fondé
de pouvoir), prior to the Credit Agreement, of any deeds of hypothec or other security documents is
hereby ratified and confirmed.

     If Agent or Canadian Agent shall request instructions from Requisite Lenders, Supermajority
Lenders or all affected Lenders with respect to any act or action (including failure to act) in
connection with this Agreement or any other Loan Document, then Agent or Canadian Agent shall be
entitled to refrain from such act or taking such action unless and until Agent or Canadian Agent
shall have received instructions from Requisite Lenders, Requisite Lenders, Supermajority Lenders,
or all affected Lenders, as the case may be, and neither Agent nor Canadian Agent shall incur
liability to any Person by reason of so refraining. Either of the

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Agents shall be fully justified
in failing or refusing to take any action hereunder or under any other Loan Document (a) if such
action would, in the opinion of such Agent, be contrary to law or the terms of this Agreement or
any other Loan Document, (b) if such action would, in the opinion of such Agent, expose such Agent
to Environmental Liabilities or (c) if such Agent shall not first be indemnified to its
satisfaction against any and all liability and expense which may be incurred by it by reason of
taking or continuing to take any such action. Without limiting the foregoing, no Lender shall have
any right of action whatsoever against either Agent as a result of either Agent acting or
refraining from acting hereunder or under any other Loan Document in accordance with the
instructions of Requisite Lenders, Supermajority Lenders or all affected Lenders, as applicable.

     With effect immediately prior to any other provision of this Agreement becoming effective and
prior to the effectiveness of any amendment to or restatement of any Loan Documents which amendment
and restatement is dated as of the date hereof, Agent hereby irrevocably (i) assigns to and in
favour of Canadian Agent, all of Agent’s right, title, interest and benefit (except as “fondé de
pouvoir”, which is dealt with the following paragraphs) in and to the Existing Credit Agreement and
the Loan Documents (as that term is defined in the Existing Credit Agreement, the “Existing
Loan Documents”), including the benefit of any Liens created thereunder, in so far as they
relate to the Canadian Borrowers, WESCO Canada and WESCO DC GP, and (ii) appoints, with respect to
the Existing Loan Documents (but only in so far as they relate to the Canadian Borrowers, WESCO
Canada and WESCO DC GP), Canadian Agent as agent in its place and stead (other than as “fondé de
pouvoir”, which is dealt with in the following paragraphs).

     Canadian Agent hereby irrevocably accepts such assignment and appointment with respect to the
Existing Loan Documents (but only in so far as they relate to the Canadian Borrowers, WESCO Canada
and WESCO DC GP).

     In consideration of the assignment hereinabove mentioned and with effect as of the same time
and date as such assignment, the Agent hereby resigns as the person holding an irrevocable power of
attorney (fondé de pouvoir) pursuant to article 2692 of the Civil Code of Québec under the terms of
the Existing Loan Documents. As and from such resignation of the Agent, for the purposes of holding
any security granted by any Credit Party pursuant to the laws of the Province of Quebec, including
any deed of hypothec, debenture, bond or other title of indebtedness and debenture or bond pledge
agreements, Canadian Agent is hereby appointed to act as the Person holding the power of attorney
(fondé de pouvoir) pursuant to article 2692 of the Civil Code of Québec to act on behalf of each
present and future Canadian Lender. Each party hereto agrees that, notwithstanding Section 32 of an
Act respecting the Special Powers of Legal Persons (Quebec), Canadian Agent may, as the Person
holding the power of attorney of the Canadian Lenders, acquire and/or be the pledgee of any
debentures, bonds or other titles of indebtedness secured by any hypothec granted by any Credit
Party to the Canadian Agent, as the person holding an irrevocable power of attorney (fondé de
pouvoir) pursuant to article 2692 of the Civil Code of Québec, pursuant to the laws of the Province
of Quebec.

     The Agent hereby transfers and delivers to the Canadian Agent the certificate representing the
Debenture (as such term is defined in the Existing Loan Documents) pledged by

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the Canadian
Borrowers pursuant to the Existing Loan Documents. The Canadian Agent acknowledges and undertakes
to hold the New Debenture, to be issued in replacement of the Debenture, for and on behalf of the
Canadian Lenders in accordance with and pursuant to the terms of the Loan Documents, including
without limitations, the Debenture Pledge Agreement.

     Each Credit Party hereby consents to such assignment, resignation and appointment, including
the transfer of the Debenture and the delivery by the Agent to the Canadian Agent of the
certificate representing the Debenture, and confirms that the Liens created under the Existing Loan
Documents and hereby assigned to Canadian Agent shall secure the Canadian Obligations. Each Credit
Party covenants to promptly file, or cause to be filed, no later than 30 days after the Closing
Date, any and all PPSA financing change statements or other similar registrations or documents as
Canadian Agent may deem necessary or desirable to record or otherwise provide notice of the
foregoing assignment, resignation and appointment.

     9.3 Agents’ Reliance, Etc.

     Neither of the Agents nor any of either of their respective Affiliates nor any of their
respective directors, officers, agents or employees shall be liable for any action taken or omitted
to be taken by it or them under or in connection with this Agreement or the other Loan Documents,
except for damages caused by its or their own gross negligence or willful misconduct. Without
limiting the generality of the foregoing, each Agent: (a) may treat the payee of any Note as the
holder thereof until Agent receives written notice of the assignment or transfer thereof signed by
such payee and in form reasonably satisfactory to such Agent; (b) may consult with legal counsel,
independent public accountants and other experts selected by it and shall not
be liable for any action taken or omitted to be taken by it in good faith in accordance with
the advice of such counsel, accountants or experts; (c) makes no warranty or representation to any
Lender and shall not be responsible to any Lender for any statements, warranties or representations
made in or in connection with this Agreement or the other Loan Documents; (d) shall not have any
duty to ascertain or to inquire as to the performance or observance of any of the terms, covenants
or conditions of this Agreement or the other Loan Documents on the part of any Credit Party or to
inspect the Collateral (including the books and records) of any Credit Party; (e) shall not be
responsible to any Lender for the due execution, legality, validity, enforceability, genuineness,
sufficiency or value of this Agreement or the other Loan Documents or any other instrument or
document furnished pursuant hereto or thereto; and (f) shall incur no liability under or in respect
of this Agreement or the other Loan Documents by acting upon any notice, consent, certificate or
other instrument or writing (which may be by telecopy, telegram, cable or telex) believed by it to
be genuine and signed or sent by the proper party or parties.

     9.4 GE Capital, GE Capital Canada and Affiliates.

     With respect to its US Commitments hereunder, GE Capital shall have the same rights and powers
under this Agreement and the other Loan Documents as any other US Lender and may exercise the same
as though it were not Agent; and the term “US Lender” or “US Lenders” shall, unless otherwise
expressly indicated, include GE Capital in its individual capacity. With respect to its Canadian
Commitments hereunder, GE Capital Canada shall have the same rights and powers under this Agreement
and the other Loan Documents as any other Canadian Lender and may exercise the same as though it
were not Canadian Agent; and the term

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“Canadian Lender” or “Canadian Lenders” shall, unless
otherwise expressly indicated, include GE Capital Canada in its individual capacity. GE Capital,
GE Capital Canada and their respective Affiliates may lend money to, invest in, and generally
engage in any kind of business with, any Credit Party, any of their Affiliates and any Person who
may do business with or own securities of any Credit Party or any such Affiliate, all as if GE
Capital or GE Capital Canada were not Agent or Canadian Agent, respectively, and without any duty
to account therefor to Lenders. GE Capital, as a US Lender, and GE Capital Canada, as a Canadian
Lender, and their Affiliates may accept fees and other consideration from any Credit Party for
services in connection with this Agreement or otherwise without having to account for the same to
Lenders. Each Lender acknowledges the potential conflict of interest between GE Capital as a US
Lender and GE Capital Canada as a Canadian Lender holding disproportionate interests in the US
Loans and Canadian Loans, respectively, and GE Capital as Agent and GE Capital Canada as Canadian
Agent.

     9.5 Lender Credit Decision.

     Each Lender acknowledges that it has, independently and without reliance upon either Agent or
any other Lender and based on the Financial Statements referred to in Section 3.4(a) and
such other documents and information as it has deemed appropriate, made its own credit and
financial analysis of the Credit Parties and its own decision to enter into this Agreement. Each
Lender also acknowledges that it will, independently and without reliance upon Agent or any other
Lender and based on such documents and information as it shall deem appropriate at the time,
continue to make its own credit decisions in taking or not taking action
under this Agreement. Each Lender acknowledges the potential conflict of interest of each
other Lender as a result of Lenders holding disproportionate interests in the Loans, and expressly
consents to, and waives any claim based upon, such conflict of interest.

     9.6 Indemnification.

     Lenders agree to indemnify each of the Agents (to the extent not reimbursed by Credit Parties
and without limiting the obligations of Borrowers hereunder), ratably according to their respective
Pro Rata Shares, from and against any and all liabilities, obligations, losses, damages, penalties,
actions, judgments, suits, costs, expenses or disbursements of any kind or nature whatsoever that
may be imposed on, incurred by, or asserted against each of the Agents in any way relating to or
arising out of this Agreement or any other Loan Document or any action taken or omitted to be taken
by such Agent in connection therewith; provided, that no Lender shall be liable for any
portion of such liabilities, obligations, losses, damages, penalties, actions, judgments, suits,
costs, expenses or disbursements resulting from either of the Agents’ gross negligence or willful
misconduct. Without limiting the foregoing, each Lender agrees to reimburse each of the Agents
promptly upon demand for its ratable share of any out-of-pocket expenses (including reasonable
counsel fees) incurred by such Agent in connection with the preparation, execution, delivery,
administration, modification, amendment or enforcement (whether through negotiations, legal
proceedings or otherwise) of, or legal advice in respect of rights or responsibilities under, this
Agreement and each other Loan Document, to the extent that such Agent is not reimbursed for such
expenses by Credit Parties.

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     9.7 Successor Agent.

     (a) Agent may resign at any time by giving not less than 30 days’ prior written notice thereof
to Lenders and Borrower Representative. Upon any such resignation, the Requisite Lenders shall
have the right to appoint a successor Agent. If no successor Agent shall have been so appointed by
the Requisite Lenders and shall have accepted such appointment within 30 days after the resigning
Agent’s giving notice of resignation, then the resigning Agent may, on behalf of Lenders, appoint a
successor Agent, which shall be a US Lender, if a US Lender is willing to accept such appointment,
or otherwise shall be a commercial bank or financial institution or a subsidiary of a commercial
bank or financial institution if such commercial bank or financial institution is organized under
the laws of the United States of America or of any State thereof and has a combined capital and
surplus of at least $300,000,000. If no successor Agent has been appointed pursuant to the
foregoing, within 30 days after the date such notice of resignation was given by the resigning
Agent, such resignation shall become effective and the Requisite Lenders shall thereafter perform
all the duties of Agent hereunder until such time, if any, as the Requisite Lenders appoint a
successor Agent as provided above. Any successor Agent appointed by Requisite Lenders hereunder
shall be subject to the approval of Borrower Representative, such approval not to be unreasonably
withheld or delayed; provided that such approval shall not be required if a Default or an
Event of Default has occurred and is continuing. Upon the acceptance of any appointment as Agent
hereunder by a successor Agent, such successor Agent shall succeed to and become vested with all
the rights, powers, privileges and duties of the resigning Agent. Upon the earlier of the
acceptance of any appointment as Agent hereunder by a successor Agent or the effective date of the
resigning Agent’s resignation,
the resigning Agent shall be discharged from its duties and obligations under this Agreement
and the other Loan Documents, except that any indemnity rights or other rights in favor of such
resigning Agent shall continue. After any resigning Agent’s resignation hereunder, the provisions
of this Section 9 shall inure to its benefit as to any actions taken or omitted to be taken
by it while it was acting as Agent under this Agreement and the other Loan Documents.

     (b) Canadian Agent may resign at any time by giving not less than 30 days’ prior written
notice thereof to Lenders and Borrower Representative. Upon any such resignation, the Requisite
Lenders shall have the right to appoint a successor Canadian Agent so long as any successor is a
person which by the terms hereof would be permitted to be a Canadian Lender hereunder. If no
successor Canadian Agent shall have been so appointed by the Requisite Lenders and shall have
accepted such appointment within 30 days after the Canadian Agent’s giving notice of resignation,
then the Canadian Agent may appoint a successor Canadian Agent, which shall be a Canadian Lender,
if a Canadian Lender is willing to accept such appointment, or otherwise shall be a commercial bank
or financial institution or a subsidiary of a commercial bank or financial institution if such
commercial bank or financial institution is organized under the laws of Canada or of any province
or territory thereof, and has a combined capital and surplus of at least $300,000,000. If no
successor Canadian Agent has been appointed pursuant to the foregoing, within 30 days after the
date such notice of resignation was given by the Canadian Agent, such resignation shall become
effective and the Requisite Lenders shall thereafter perform all the duties of Canadian Agent
hereunder until such time, if any, as the Requisite Lenders appoint a successor Canadian Agent as
provided above. Any successor Canadian Agent appointed by Requisite Lenders hereunder shall be
subject to the approval of

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Borrower Representative, such approval not to be unreasonably withheld
or delayed; provided that such approval shall not be required if a Default or an Event of Default
has occurred and is continuing. Upon the acceptance of any appointment as Canadian Agent hereunder
by a successor Canadian Agent, such successor Canadian Agent shall succeed to and become vested
with all the rights, powers, privileges and duties of the resigning Canadian Agent. Upon the
earlier of the acceptance of any appointment as Canadian Agent hereunder by a successor Canadian
Agent or the effective date of the resigning Canadian Agent’s resignation, the resigning Canadian
Agent shall be discharged from its duties and obligations under this Agreement and the other Loan
Documents, except that any indemnity rights or other rights in favor of such resigning Canadian
Agent shall continue. After any resigning Canadian Agent’s resignation hereunder, the provisions
of this Section 9 shall inure to its benefit as to any actions taken or omitted to be taken
by it while it was acting as Canadian Agent under this Agreement and the other Loan Documents.

     9.8 Setoff and Sharing of Payments.

     In addition to any rights now or hereafter granted under applicable law and not by way of
limitation of any such rights, upon the occurrence and during the continuance of any Event of
Default and subject to Section 9.9(f) and Section 12 hereof, each Lender is hereby
authorized at any time or from time to time, without notice to any Credit Party or to any other
Person, any such notice being hereby expressly waived, to offset and to appropriate and to apply
any and all balances held by it at any of its offices for the account of any Borrower or any
Guarantor (regardless of whether such balances are then due to such Borrower or any Guarantor) and
any other properties or assets at any time held or owing by that Lender or that holder to or for
the credit or for the account of such Borrower or any Guarantor against and on account of any
of the Obligations that are not paid when due. Any Lender exercising a right of setoff or
otherwise receiving any payment on account of the Obligations in excess of its Pro Rata Share
thereof shall purchase for cash (and the other Lenders or holders shall sell) such participations
in each such other Lender’s or holder’s Pro Rata Share of the Obligations as would be necessary to
cause such Lender to share the amount so offset or otherwise received with each other Lender or
holder in accordance with their respective Pro Rata Shares, (other than offset rights exercised by
any Lender with respect to Sections 1.13, 1.15 or 1.16). Each Lender’s obligation
under this Section 9.8 shall be in addition to and not in limitation of its obligations to
purchase a participation in an amount equal to its Pro Rata Share of the Swing Line Loans under
Section 1.1. Each Borrower and each Guarantor agrees, to the fullest extent permitted by
law, that (a) any Lender may exercise its right to offset with respect to amounts in excess of its
Pro Rata Share of the Obligations and may sell participations in such amounts so offset to other
Lenders and holders and (b) any Lender so purchasing a participation in the Loans made or other
Obligations held by other Lenders or holders may exercise all rights of offset, bankers’ lien,
counterclaim or similar rights with respect to such participation as fully as if such Lender or
holder were a direct holder of the Loans and the other Obligations in the amount of such
participation. Notwithstanding the foregoing, if all or any portion of the offset amount or
payment otherwise received is thereafter recovered from the Lender that has exercised the right of
offset, the purchase of participations by that Lender shall be rescinded and the purchase price
restored without interest.

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     9.9 Advances; Payments; Non-Funding Lenders; Information; Actions in Concert.

     (a) Advances; Payments.

          (i) Lenders shall refund or participate in the Swing Line Loan in accordance with clauses
(iii) and (iv) of Section 1.1(b). If the applicable Swing Line Lender declines
to make a Swing Line Loan or if Swing Line Availability is zero, the Applicable Agent shall notify
Lenders, promptly after receipt of a Notice of Revolving Advance and in any event prior to 1:00
p.m. (New York time) on the date such Notice of Revolving Advance is received, by telecopy,
telephone or other similar form of transmission. Each Lender shall make the amount of such
Lender’s Pro Rata Share of such Revolving Credit Advance available to the Applicable Agent in same
day funds by wire transfer to the Applicable Agent’s account as set forth in Annex H not
later than 3:00 p.m. (New York time) on the requested funding date, in the case of an Index Rate
Loan and not later than 11:00 a.m. (New York time) on the requested funding date in the case of a
LIBOR Loan. After receipt of such wire transfers (or, in the Applicable Agent’s sole discretion,
before receipt of such wire transfers), subject to the terms hereof, the Applicable Agent shall
make the requested Revolving Credit Advance to the Borrower designated by Borrower Representative
in the Notice of Revolving Credit Advance. All payments by each Lender shall be made without
setoff, counterclaim or deduction of any kind.

          (ii) On the 2nd Business Day of each calendar two-week period or more frequently at the
Applicable Agent’s election (each, a “Settlement Date”), such Agent shall advise each
Lender by telephone, or telecopy of the amount of such Lender’s Pro Rata Share of principal,
interest and Fees paid for the benefit of Lenders with respect to each applicable Loan.
Provided that each Lender has funded all payments and Advances required to be made by it and
purchased all participations required to be purchased by it under this Agreement and the other Loan
Documents as of such Settlement Date, each Applicable Agent shall pay to each Lender such Lender’s
Pro Rata Share of principal, interest and Fees paid by Borrowers since the previous Settlement Date
for the benefit of such Lender on the Loans held by it. To the extent that any Lender (a
“Non-Funding Lender”) has failed to fund all such payments and Advances or failed to fund the
purchase of all such participations, each Applicable Agent shall be entitled to set off the funding
short-fall against that Non-Funding Lender’s Pro Rata Share of all payments received from
Borrowers. Such payments shall be made by wire transfer to such Lender’s account (as specified by
such Lender in Annex H or the applicable Assignment Agreement) not later than 2:00 p.m.
(New York time) on the next Business Day following each Settlement Date.

     (b) Availability of Lender‘s Pro Rata Share. Agent may assume that each
Lender will make its Pro Rata Share of each Revolving Credit Advance available to Agent on each
funding date. If such Pro Rata Share is not, in fact, paid to each Agent by such Lender when due,
such Agent will be entitled to recover such amount on demand from such Lender without setoff,
counterclaim or deduction of any kind. If any Lender fails to pay the amount of its Pro Rata Share
forthwith upon such Agent’s demand, such Agent shall promptly notify Borrower Representative and
Borrowers shall immediately repay such amount to such Agent. Nothing in this Section
9.9(b) or elsewhere in this Agreement or the other Loan Documents shall

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be deemed to require
such Agent to advance funds on behalf of any Lender or to relieve any Lender from its obligation to
fulfill its Commitments hereunder or to prejudice any rights that Borrowers may have against any
Lender as a result of any default by such Lender hereunder. To the extent that any Agent advances
funds to any Borrower on behalf of any Lender and is not reimbursed therefor on the same Business
Day as such Advance is made, such Agent shall be entitled to retain for its account all interest
accrued on such Advance until reimbursed by the applicable Lender.

     (c) Return of Payments.

          (i) If either Agent pays an amount to a Lender under this Agreement in the belief or
expectation that a related payment has been or will be received by such Agent from Borrowers and
such related payment is not received by such Agent, then such Agent will be entitled to recover
such amount from such Lender on demand without setoff, counterclaim or deduction of any kind.

          (ii) If any Agent determines at any time that any amount received by any Agent under this
Agreement must be returned to any Borrower or paid to any other Person pursuant to any insolvency
law or otherwise, then, notwithstanding any other term or condition of this Agreement or any other
Loan Document, the Applicable Agent will not be required to distribute any portion thereof to any
Lender. In addition, each Lender will repay to the Applicable Agent on demand any portion of such
amount that the Applicable Agent has distributed to such Lender, together with interest at such
rate, if any, as the Applicable Agent is required to pay to any Borrower or such other Person,
without setoff, counterclaim or deduction of any kind.

     (d) Non-Funding Lenders. The failure of any Non-Funding Lender to make any Revolving
Credit Advance or any payment required by it hereunder, or to purchase any participation in any
Swing Line Loan to be made or purchased by it on the date specified therefor shall not relieve any
other Lender (each such other Lender, an “Other Lender”) of its obligations to make such
Advance or purchase such participation on such date, but neither any Other Lender nor Agent shall
be responsible for the failure of any Non-Funding Lender to make an Advance, purchase a
participation or make any other payment required hereunder. Notwithstanding anything set forth
herein to the contrary, a Non-Funding Lender shall not have any voting or consent rights under or
with respect to any Loan Document or constitute a “Lender” or a “Lender” (or be included in the
calculation of “Requisite Lenders” or “Supermajority Lenders” hereunder) for any voting or consent
rights under or with respect to any Loan Document. At Borrower Representative’s request, Agent or
a Person acceptable to Agent shall have the right with Agent’s consent and in Agent’s sole
discretion (but shall have no obligation) to purchase from any Non-Funding Lender, and each
Non-Funding Lender agrees that it shall, at Agent’s request, sell and assign to Agent or such
Person, all of the Commitments of that Non-Funding Lender for an amount equal to the principal
balance of all Loans held by such Non-Funding Lender and all accrued interest and fees with respect
thereto through the date of sale, such purchase and sale to be consummated pursuant to an executed
Assignment Agreement.

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     (e) Dissemination of Information. Each Agent shall use reasonable efforts to provide
Lenders with any notice of Default or Event of Default received by such Agent from, or delivered by
such Agent to, any Credit Party, with notice of any Event of Default of which such Agent has
actually become aware and with notice of any action taken by Agent following any Event of Default,
and, regardless of whether a Default or Event of Default is in existence, copies of any collateral
audits and appraisals as such Agent may have conducted; provided, that neither Agent nor Canadian
Agent shall be liable to any Lender for any failure to do so, except to the extent that such
failure is attributable to such Agent’s gross negligence or willful misconduct.

     (f) Actions in Concert. Anything in this Agreement to the contrary notwithstanding,
each Lender hereby agrees with each other Lender that no Lender shall take any action to protect or
enforce its rights arising out of this Agreement or the Notes (including exercising any rights of
setoff) without first obtaining the prior written consent of Agent or Requisite Lenders, it being
the intent of Lenders that any such action to protect or enforce rights under this Agreement and
the Notes shall be taken in concert and at the direction or with the consent of Agent or Requisite
Lenders.

     9.10 Syndication Agent and Documentation Agent.

     The parties hereto acknowledge and agree that no Person shall have, by reason of its
designation as Syndication Agent or Documentation Agent, any power, duty, responsibility or
liability whatsoever under this Agreement or any other Loan Document.

10. SUCCESSORS AND ASSIGNS

     10.1 Successors and Assigns.

     This Agreement and the other Loan Documents shall be binding on and shall inure to the benefit
of each Credit Party, each Agent, Lenders and their respective successors and assigns (including,
in the case of any Credit Party, a debtor-in-possession on behalf of such Credit Party), except as
otherwise provided herein or therein. No Credit Party may assign, transfer, hypothecate or
otherwise convey its rights, benefits, obligations or duties hereunder or under any of the other
Loan Documents without the prior express written consent of Agents and Lenders. Any such purported
assignment, transfer, hypothecation or other conveyance by any Credit Party without the prior
express written consent of Agents and Lenders shall be void. The terms and provisions of this
Agreement are for the purpose of defining the relative rights and obligations of each Credit Party,
Agents and Lenders with respect to the transactions contemplated hereby and no Person shall be a
third party beneficiary of any of the terms and provisions of this Agreement or any of the other
Loan Documents.

11. MISCELLANEOUS

     11.1 Complete Agreement; Modification of Agreement.

     The Loan Documents constitute the complete agreement between the parties with respect to the
subject matter thereof and may not be modified, altered or amended except as set forth in
Section 11.2. Any letter of interest, proposal letter, commitment letter, fee letter
(other

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than the GE Capital Fee Letter) or confidentiality agreement between any Credit Party and
either Agent or any Lender or any of their respective Affiliates, predating this Agreement and
relating to a financing of substantially similar form, purpose or effect shall be superseded by
this Agreement.

     11.2 Amendments and Waivers.

     (a) Except for actions expressly permitted to be taken by either Agent, no amendment,
modification, termination or waiver of any provision of this Agreement or any other Loan Document,
or any consent to any departure by any Credit Party therefrom, shall in any event be effective
unless the same shall be in writing and signed by Agents and Borrowers, and by Requisite Lenders,
Supermajority Lenders or all affected Lenders, as applicable. Except as set forth in clauses
(b) and (c) below, all such amendments, modifications, terminations or waivers requiring the
consent of any Lenders shall require the written consent of Requisite Lenders. For purposes of
clarity, the parties hereto hereby acknowledge and agree that all actions that require the consent
of Lenders or any subgroup of Lenders referred to in this Agreement (i.e., Requisite Lenders,
Requisite Revolving Lenders or Supermajority Lenders) shall include Canadian Lenders and US
Lenders, collectively, regardless of whether Loans or Borrowers or other matters affected thereby
are exclusively related to one jurisdiction (i.e., U.S. or Canada) or the other.

     (b) No amendment, modification, termination or waiver of or consent with respect to any
provision of this Agreement that increases the percentage advance rates set forth in
the definition of the US Borrowing Base or the Canadian Borrowing Base, or that makes less
restrictive the nondiscretionary criteria for exclusion from Eligible Accounts and Eligible
Inventory set forth in Sections 1.6 and 1.7, shall be effective unless the same
shall be in writing and signed by each Agent, Supermajority Lenders and Borrowers.

     (c) No amendment, modification, termination or waiver shall, unless in writing and signed by
Agent and each Lender directly affected thereby: (i) increase the principal amount of any Lender’s
Commitment (which action shall be deemed only to affect those Lenders whose Commitments are
increased and may be approved by Requisite Lenders, including those lenders whose Commitments are
increased); (ii) reduce the principal of, rate of interest on or Fees payable with respect to any
Loan or Letter of Credit Obligations of any affected Lender; (iii) extend any scheduled payment
date (other than payment dates of mandatory prepayments under Section 1.3(b)(ii) and
(iii)) or final maturity date of the principal amount of any Loan of any affected Lender;
(iv) waive, forgive, defer, extend or postpone any payment of interest or Fees as to any affected
Lender; (v) release any Guaranty or, except as otherwise permitted herein or in the other Loan
Documents, release, or permit any Credit Party to sell or otherwise dispose of, any Collateral with
a value exceeding $20,000,000 in the aggregate during the term of this Agreement (which action
shall be deemed to directly affect all Lenders); (vi) change the percentage of the Commitments or
of the aggregate unpaid principal amount of the Loans that shall be required for Lenders or any of
them to take any action hereunder; and (vii) amend or waive this Section 11.2 or the
definitions of the terms “Requisite Lenders” or “Supermajority Lenders” insofar as such definitions
affect the substance of this Section 11.2. Furthermore, no amendment, modification,
termination or waiver affecting the rights or duties of Agent or L/C

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Issuer under this Agreement or
any other Loan Document shall be effective unless in writing and signed by Agent or L/C Issuer, as
the case may be, in addition to Lenders required hereinabove to take such action. Each amendment,
modification, termination or waiver shall be effective only in the specific instance and for the
specific purpose for which it was given. No amendment, modification, termination or waiver shall
be required for either Agent to take additional Collateral pursuant to any Loan Document. No
amendment, modification, termination or waiver of any provision of any Note shall be effective
without the written concurrence of the holder of that Note. No notice to or demand on any Credit
Party in any case shall entitle such Credit Party or any other Credit Party to any other or further
notice or demand in similar or other circumstances. Any amendment, modification, termination,
waiver or consent effected in accordance with this Section 11.2 shall be binding upon each
holder of the Notes at the time outstanding and each future holder of the Notes.

     (d) If, in connection with any proposed amendment, modification, waiver or termination (a
“Proposed Change”):

          (i) requiring the consent of all affected Lenders, the consent of Requisite Lenders is
obtained, but the consent of other Lenders whose consent is required is not obtained (any such
Lender whose consent is not obtained as described in this clause (i) and in clause
(ii) below being referred to as a “Non-Consenting Lender”), or

          (ii) requiring the consent of Supermajority Lenders, the consent of Requisite Lenders is
obtained, but the consent of Supermajority Lenders is not obtained, then, so
long as Agent is not a Non-Consenting Lender, at Borrower Representative’s request Agent, or a
Person reasonably acceptable to Agent, shall have the right with Agent’s consent and in Agent’s
sole discretion (but shall have no obligation) to purchase from such Non-Consenting Lenders, and
such Non-Consenting Lenders agree that they shall, upon Agent’s request, sell and assign to Agent
or such Person, all of the Commitments of such Non-Consenting Lenders for an amount equal to the
principal balance of all Loans held by the Non-Consenting Lenders and all accrued interest and Fees
with respect thereto through the date of sale, such purchase and sale to be consummated pursuant to
an executed Assignment Agreement.

     (e) Upon payment in full in cash and performance of all of the Obligations (other than
indemnification Obligations), termination of the Commitments and a release of all claims against
each Agent and Lenders, and so long as no suits, actions proceedings, or claims are pending or
threatened against any Indemnified Person asserting any damages, losses or liabilities that are
Indemnified Liabilities, the Applicable Agent shall deliver to Borrowers termination statements,
mortgage releases and other documents necessary or appropriate to evidence the termination of the
Liens securing payment of the Obligations.

     11.3 Fees and Expenses.

     Borrowers shall reimburse (i) each Agent for all fees, costs and expenses (including the
reasonable fees and expenses of all of its counsel, advisors, consultants and auditors) and (ii)
Agent (and, with respect to clauses (c), (d) and (e) below, all Lenders) for all fees,
costs and expenses, including the reasonable fees, costs and expenses of counsel or other advisors
(including environmental and management consultants and appraisers) incurred in

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connection with the
negotiation and preparation of the Loan Documents and incurred in connection with:

     (a) the forwarding to Borrowers or any other Person on behalf of Borrowers by any Agent of the
proceeds of any Loan;

     (b) any amendment, modification or waiver of, or consent with respect to, or termination of,
any of the Loan Documents or Related Transactions Documents or advice in connection with the
syndication and administration of the Loans made pursuant hereto or its rights hereunder or
thereunder;

     (c) any litigation, contest, dispute, suit, proceeding or action (whether instituted by either
Agent, any Lender, any Credit Party or any other Person and whether as a party, witness or
otherwise) in any way relating to the Collateral, any of the Loan Documents or any other agreement
to be executed or delivered in connection herewith or therewith, including any litigation, contest,
dispute, suit, case, proceeding or action, and any appeal or review thereof, in connection with a
case commenced by or against any Credit Party or any other Person that may be obligated to either
Agent by virtue of the Loan Documents, including any such litigation, contest, dispute, suit,
proceeding or action arising in connection with any work-out or restructuring of the Loans during
the pendency of one or more Events of Default; provided that in the case of reimbursement
of counsel for Lenders other than either Agent, such reimbursement shall be limited to one counsel
for all US Lenders and one counsel for all Canadian Lenders; provided, further, that no Person shall be entitled to reimbursement under this clause
(c) in respect of any litigation, contest, dispute, suit, proceeding or action to the extent any of
the foregoing results from such Person’s gross negligence or willful misconduct;

     (d) any attempt to enforce any remedies of either Agent or any Lender against any or all of
the Credit Parties or any other Person that may be obligated to either Agent or any Lender by
virtue of any of the Loan Documents, including any such attempt to enforce any such remedies in the
course of any work-out or restructuring of the Loans during the pendency of one or more Events of
Default; provided, that in the case of reimbursement of counsel for Lenders other than
either Agent, such reimbursement shall be limited to one counsel for all US Lenders and one counsel
for all Canadian Lenders;

     (e) any workout or restructuring of the Loans during the pendency of one or more Events of
Default; and

     (f) efforts to (i) monitor the Loans or any of the other Obligations, (ii) evaluate, observe
or assess any of the Credit Parties or their respective affairs, and (iii) verify, protect,
evaluate, assess, appraise, collect, sell, liquidate or otherwise dispose of any of the Collateral;
including, as to each of clauses (a) through (f) above, all reasonable attorneys’ and other
professional and service providers’ fees arising from such services and other advice, assistance or
other representation, including those in connection with any appellate proceedings, and all
expenses, costs, charges and other fees incurred by such counsel and others in connection with or
relating to any of the events or actions described in this Section 11.3, all of which shall
be payable, on demand, by Borrowers to the Applicable Agent. Without limiting the generality of
the foregoing, such expenses, costs, charges and fees may include: fees, costs and expenses of

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accountants, environmental advisors, appraisers, investment bankers, management and other
consultants and paralegals; court costs and expenses; photocopying and duplication expenses; court
reporter fees, costs and expenses; long distance telephone charges; air express charges; telegram
or telecopy charges; secretarial overtime charges; and expenses for travel, lodging and food paid
or incurred in connection with the performance of such legal or other advisory services.
Notwithstanding the foregoing provisions of this Section 11.3, absent a Default or Event of
Default Borrowers shall not be required to pay for (i) more than one inventory appraisal per year
or (ii) more than two collateral audits per year.

     11.4 No Waiver.

     No failure by either Agent or any Lender, at any time or times, to require strict performance
by the Credit Parties of any provision of this Agreement or any other Loan Document shall waive,
affect or diminish any right of such Agent or such Lender thereafter to demand strict compliance
and performance herewith or therewith. Any suspension or waiver of an Event of Default shall not
suspend, waive or affect any other Event of Default whether the same is prior or subsequent thereto
and whether the same or of a different type. Subject to the provisions of Section 11.2,
none of the undertakings, agreements, warranties, covenants and representations of any Credit Party
contained in this Agreement or any of the other Loan Documents and no Default or Event of Default
by any Credit Party shall be deemed to have been suspended or waived by either Agent or any Lender,
unless such waiver or suspension is by an
instrument in writing signed by an officer of or other authorized employee of such Agent and
the applicable required Lenders and directed to Borrowers specifying such suspension or waiver.

     11.5 Remedies.

     Each Agent’s and Lenders’ rights and remedies under this Agreement shall be cumulative and
nonexclusive of any other rights and remedies that such Agent or any Lender may have under any
other agreement, including the other Loan Documents, by operation of law or otherwise. Recourse to
the Collateral shall not be required.

     11.6 Severability.

     Wherever possible, each provision of this Agreement and the other Loan Documents shall be
interpreted in such a manner as to be effective and valid under applicable law, but if any
provision of this Agreement or any other Loan Document shall be prohibited by or invalid under
applicable law, such provision shall be ineffective only to the extent of such prohibition or
invalidity, without invalidating the remainder of such provision or the remaining provisions of
this Agreement or such other Loan Document.

     11.7 Conflict of Terms.

     Except as otherwise provided in this Agreement or any of the other Loan Documents by specific
reference to the applicable provisions of this Agreement, if any provision contained in this
Agreement conflicts with any provision in any of the other Loan Documents, the provision contained
in this Agreement shall govern and control.

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     11.8 Confidentiality.

     Each Agent and each Lender agrees to use commercially reasonable efforts (equivalent to the
efforts such Agent or such Lender applies to maintain the confidentiality of its own confidential
information) to maintain as confidential all confidential information provided to them by the
Credit Parties and designated as confidential for a period of 2 years following receipt thereof,
except that either Agent and each Lender may disclose such information (a) to Persons employed or
engaged by Agent or such Lender in evaluating, approving, structuring or administering the Loans
and the Commitments; (b) to any bona fide assignee or participant or potential assignee or
participant that has agreed to comply with the covenant contained in this Section 11.8 (and
any such bona fide assignee or participant or potential assignee or participant may disclose such
information to Persons employed or engaged by them as described in clause (a) above); (c)
as required or requested by any Governmental Authority or reasonably believed by either Agent or
such Lender to be compelled by any court decree, subpoena or legal or administrative order or
process; (d) as, on the advice of either Agent’s or such Lender’s counsel, is required by law; (e)
in connection with the exercise of any right or remedy under the Loan Documents or in connection
with any Litigation to which either Agent or such Lender is a party; or (f) that ceases to be
confidential through no fault of either Agent or any Lender.

     11.9 GOVERNING LAW.

     EXCEPT AS OTHERWISE EXPRESSLY PROVIDED IN ANY OF THE LOAN DOCUMENTS, IN ALL RESPECTS,
INCLUDING ALL MATTERS OF CONSTRUCTION, VALIDITY AND PERFORMANCE, THE LOAN DOCUMENTS AND THE
OBLIGATIONS SHALL BE GOVERNED BY, AND CONSTRUED AND ENFORCED IN ACCORDANCE WITH, THE INTERNAL LAWS
OF THE STATE OF NEW YORK APPLICABLE TO CONTRACTS MADE AND PERFORMED IN THAT STATE AND ANY
APPLICABLE LAWS OF THE UNITED STATES OF AMERICA. EACH CREDIT PARTY HEREBY CONSENTS AND AGREES THAT
THE STATE OR FEDERAL COURTS LOCATED IN NEW YORK COUNTY, CITY OF NEW YORK, NEW YORK SHALL HAVE
EXCLUSIVE JURISDICTION TO HEAR AND DETERMINE ANY CLAIMS OR DISPUTES BETWEEN THE CREDIT PARTIES,
AGENTS AND LENDERS PERTAINING TO THIS AGREEMENT OR ANY OF THE OTHER LOAN DOCUMENTS OR TO ANY MATTER
ARISING OUT OF OR RELATING TO THIS AGREEMENT OR ANY OF THE OTHER LOAN DOCUMENTS; PROVIDED,
THAT AGENTS, LENDERS AND THE CREDIT PARTIES ACKNOWLEDGE THAT ANY APPEALS FROM THOSE COURTS MAY
HAVE TO BE HEARD BY A COURT LOCATED OUTSIDE OF NEW YORK COUNTY AND; PROVIDED,
FURTHER THAT NOTHING IN THIS AGREEMENT SHALL BE DEEMED OR OPERATE TO PRECLUDE EITHER AGENT
FROM BRINGING SUIT OR TAKING OTHER LEGAL ACTION IN ANY OTHER JURISDICTION TO REALIZE ON THE
COLLATERAL OR ANY OTHER SECURITY FOR THE OBLIGATIONS, OR TO ENFORCE A JUDGMENT OR OTHER COURT ORDER
IN FAVOR OF SUCH AGENT. EACH CREDIT PARTY EXPRESSLY SUBMITS AND CONSENTS IN ADVANCE TO SUCH
JURISDICTION IN ANY ACTION OR SUIT COMMENCED IN ANY SUCH COURT, AND EACH CREDIT PARTY HEREBY

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WAIVES
ANY OBJECTION THAT SUCH CREDIT PARTY MAY HAVE BASED UPON LACK OF PERSONAL JURISDICTION, IMPROPER
VENUE OR FORUM NON CONVENIENS AND HEREBY CONSENTS TO THE GRANTING OF SUCH
LEGAL OR EQUITABLE RELIEF AS IS DEEMED APPROPRIATE BY SUCH COURT. EACH CREDIT PARTY HEREBY WAIVES
PERSONAL SERVICE OF THE SUMMONS, COMPLAINT AND OTHER PROCESS ISSUED IN ANY SUCH ACTION OR SUIT AND
AGREES THAT SERVICE OF SUCH SUMMONS, COMPLAINTS AND OTHER PROCESS MAY BE MADE BY REGISTERED OR
CERTIFIED MAIL ADDRESSED TO SUCH CREDIT PARTY AT THE ADDRESS SET FORTH IN ANNEX I OF THIS
AGREEMENT AND THAT SERVICE SO MADE SHALL BE DEEMED COMPLETED UPON THE EARLIER OF SUCH CREDIT
PARTY’S ACTUAL RECEIPT THEREOF OR 3 DAYS AFTER DEPOSIT IN THE UNITED STATES MAILS, PROPER POSTAGE
PREPAID.

     11.10 Notices.

     Except as otherwise provided herein, whenever it is provided herein that any notice, demand,
request, consent, approval, declaration or other communication shall or may be given to or served
upon any of the parties by any other parties, or whenever any of the parties
desires to give or serve upon any other parties any communication with respect to this
Agreement, each such notice, demand, request, consent, approval, declaration or other communication
shall be in writing and shall be deemed to have been validly served, given or delivered (a) upon
the earlier of actual receipt and 3 Business Days after deposit in the United States Mail,
registered or certified mail, return receipt requested, with proper postage prepaid, (b) upon
transmission, when sent by telecopy or other similar facsimile transmission (with such telecopy or
facsimile promptly confirmed by delivery of a copy by personal delivery or United States Mail as
otherwise provided in this Section 11.10); (c) 1 Business Day after deposit with a
reputable overnight courier with all charges prepaid or (d) when delivered, if hand-delivered by
messenger, all of which shall be addressed to the party to be notified and sent to the address or
facsimile number indicated in Annex I or to such other address (or facsimile number) as may
be substituted by notice given as herein provided. The giving of any notice required hereunder may
be waived in writing by the party entitled to receive such notice. Failure or delay in delivering
copies of any notice, demand, request, consent, approval, declaration or other communication to any
Person (other than Borrower Representative or either Agent) designated in Annex I to
receive copies shall in no way adversely affect the effectiveness of such notice, demand, request,
consent, approval, declaration or other communication.

     11.11 Section Titles.

     The Section titles and Table of Contents contained in this Agreement are and shall be without
substantive meaning or content of any kind whatsoever and are not a part of the agreement between
the parties hereto.

     11.12 Counterparts.

     This Agreement may be executed in any number of separate counterparts, each of which shall
collectively and separately constitute one agreement.

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     11.13 WAIVER OF JURY TRIAL.

     BECAUSE DISPUTES ARISING IN CONNECTION WITH COMPLEX FINANCIAL TRANSACTIONS ARE MOST QUICKLY
AND ECONOMICALLY RESOLVED BY AN EXPERIENCED AND EXPERT PERSON AND THE PARTIES WISH APPLICABLE STATE
AND FEDERAL LAWS TO APPLY (RATHER THAN ARBITRATION RULES), THE PARTIES DESIRE THAT THEIR DISPUTES
BE RESOLVED BY A JUDGE APPLYING SUCH APPLICABLE LAWS. THEREFORE, TO ACHIEVE THE BEST COMBINATION
OF THE BENEFITS OF THE JUDICIAL SYSTEM AND OF ARBITRATION, THE PARTIES HERETO WAIVE ALL RIGHT TO
TRIAL BY JURY IN ANY ACTION, SUIT, OR PROCEEDING BROUGHT TO RESOLVE ANY DISPUTE, WHETHER SOUNDING
IN CONTRACT, TORT OR OTHERWISE, AMONG AGENTS, LENDERS AND ANY CREDIT PARTY ARISING OUT OF,
CONNECTED WITH, RELATED TO, OR INCIDENTAL TO THE RELATIONSHIP ESTABLISHED AMONG THEM IN CONNECTION
WITH, THIS AGREEMENT OR ANY OF THE OTHER LOAN DOCUMENTS OR THE TRANSACTIONS RELATED THERETO.

     11.14 Press Releases and Related Matters.

     Each Credit Party executing this Agreement agrees that neither it nor its Affiliates will in
the future issue any press releases or other public disclosure using the name of GE Capital, GE
Capital Canada or its affiliates or referring to this Agreement, the other Loan Documents or the
Related Transactions Documents without at least 2 Business Days’ prior notice to GE Capital and GE
Capital Canada and without the prior written consent of GE Capital unless (and only to the extent
that) such Credit Party or Affiliate is required to do so under law and then, in any event, such
Credit Party or Affiliate will consult with GE Capital and GE Capital Canada before issuing such
press release or other public disclosure. Each Credit Party consents to the publication by either
Agent or any Lender of a tombstone or similar advertising material relating to the financing
transactions contemplated by this Agreement. Each Agent or such Lender shall provide a draft of
any such tombstone or similar advertising material to each Credit Party for review and comment
prior to the publication thereof. Each Agent reserves the right to provide to industry trade
organizations information necessary and customary for inclusion in league table measurements. Each
Credit Party executing this Agreement agrees that neither it nor its Affiliates will in the future
issue any press release or public disclosure (other than Securities and Exchange Commission filings
required to be made by law) using the name of any Lender (other than as provided above with respect
to GE Capital and GE Capital Canada) without the prior consent of such Lender.

     11.15 Reinstatement.

     This Agreement shall remain in full force and effect and continue to be effective should any
petition be filed by or against (or similar proceeding be instituted by or against) any Borrower or
any other Credit Party for liquidation or reorganization, should any Credit Party become insolvent
or make an assignment for the benefit of any creditor or creditors or should an interim receiver,
receiver, receiver and manager or trustee be appointed for all or any significant

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part of any
Credit Party’s assets, and shall continue to be effective or to be reinstated, as the case may be,
if at any time payment and performance of the Obligations, or any part thereof, is, pursuant to
applicable law, rescinded or reduced in amount, or must otherwise be restored or returned by any
obligee of the Obligations, whether as a “voidable preference,” “fraudulent conveyance,” or
otherwise, all as though such payment or performance had not been made. In the event that any
payment, or any part thereof, is rescinded, reduced, restored or returned, the Obligations shall be
reinstated and deemed reduced only by such amount paid and not so rescinded, reduced, restored or
returned.

     11.16 Advice of Counsel.

     Each of the parties represents to each other party hereto that it has discussed this Agreement
and, specifically, the provisions of Sections 11.9 and 11.13, with its counsel.

     11.17 No Strict Construction.

     The parties hereto have participated jointly in the negotiation and drafting of this
Agreement. In the event an ambiguity or question of intent or interpretation arises, this
Agreement shall be construed as if drafted jointly by the parties hereto and no presumption or
burden of proof shall arise favoring or disfavoring any party by virtue of the authorship of any
provisions of this Agreement.

     11.18 Judgment Currency.

     (a) If, for the purpose of obtaining or enforcing judgment against any Credit Party in any
court in any jurisdiction, it becomes necessary to convert into any other currency (such other
currency being hereinafter in this Section 11.18 referred to as the “Judgment
Currency”) an amount due under any Loan Document in any currency (the “Obligation
Currency”) other than the Judgment Currency, the conversion shall be made at the rate of
exchange prevailing on the Business Day immediately preceding (i) the date of actual payment of the
amount due, in the case of any proceeding in the courts of any jurisdiction that will give effect
to such conversion being made on such date, or (ii) the date on which the judgment is given, in the
case of any proceeding in the courts of any other jurisdiction (the applicable date as of which
such conversion is made pursuant to this Section 11.18 being hereinafter in this
Section 11.18 referred to as the “Judgment Conversion Date”).

     (b) If, in the case of any proceeding in the court of any jurisdiction referred to in
Section 11.18(a), there is a change in the rate of exchange prevailing between the Judgment
Conversion Date and the date of actual receipt for value of the amount due, the applicable Credit
Party shall pay such additional amount (if any, but in any event not a lesser amount) as may be
necessary to ensure that the amount actually received in the Judgment Currency, when converted at
the rate of exchange prevailing on the date of payment, will produce the amount of the Obligation
Currency which could have been purchased with the amount of the Judgment Currency stipulated in the
judgment or judicial order at the rate of exchange prevailing on the Judgment Conversion Date. Any
amount due from a Credit Party under Section 11.18(b) shall be due as a separate debt and
shall not be affected by judgment being obtained for any other amounts due under or in respect of
any of the Loan Documents.

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     (c) The term “rate of exchange” in this Section 11.18 means the rate of exchange at
which the Agent would, on the relevant date at or about 12:00 noon (New York time), be prepared to
sell the Obligation Currency against the Judgment Currency.

     11.19 Designated Senior Indebtedness.

     Holdings and Borrower hereby specifically designate the Indebtedness evidenced by this
Agreement and the other Loan Documents (specifically including all Obligations) as “Senior
Indebtedness” and “Designated Senior Indebtedness” for all purposes, including, without limitation,
for purposes of any indenture evidencing or otherwise governing the Notes or any other Subordinated
Debt, including, without limitation, any Indebtedness issued in compliance with the provisions of
Sections 6.3(a)(xxii), (xxiii) and (xxiv).

     11.20 Amendment and Restatement.

     This Agreement amends and restates in its entirety the Existing Credit Agreement and upon the
effectiveness of this Agreement, the terms and provisions of the Existing Credit Agreement shall,
subject to this Section 11.20, be superseded hereby. All references to the “Credit Agreement”
contained in the Loan Documents delivered in connection with the Existing Credit Agreement or this
Agreement shall, and shall be deemed to, refer to this Agreement. Notwithstanding the amendment
and restatement of the Existing Credit Agreement by this Agreement, the Obligations of the
Borrowers and the other Credit Parties outstanding under the Existing Credit Agreement and the
other Loan Documents as of the Closing Date shall remain outstanding and shall constitute
continuing Obligations and shall continue as such to be secured by the Collateral. Such
Obligations shall in all respects be continuing and this Agreement shall not be deemed to evidence
or result in a novation or repayment and reborrowing of such Obligations. The Liens securing
payment of the Obligations under the Existing Credit Agreement, as amended and restated in the form
of this Agreement, shall in all respects be continuing, securing the payment of all Obligations.
In addition, each Borrower and each Credit Party hereby acknowledges, confirms and agrees that all
Intercompany Notes executed prior to the Closing Date in connection with the Existing Credit
Agreement shall remain outstanding, and each party thereto reaffirms its obligations and
liabilities under such Intercompany Notes.

     11.21 Patriot Act Notice.

     Each Lender subject to the USA Patriot Act of 2001 (31 U.S.C. 5318 et seq.) hereby notifies
the Borrowers that, pursuant to Section 326 thereof, it is required to obtain, verify and record
information that identifies the Borrowers, including the name and address of each Borrower and
other information allowing such Lender to identify the Borrowers in accordance with such act.

12. CROSS-GUARANTY

     12.1 Cross-Guaranty.

     Each Borrower hereby agrees that such Borrower is jointly and severally liable for, and hereby
absolutely and unconditionally guarantees to each Agent and Lender and their

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respective successors
and assigns, the full and prompt payment (whether at stated maturity, by acceleration or otherwise)
and performance of, all Obligations owed or hereafter owing to each Agent and Lender by each other
Borrower; provided, that, notwithstanding any other provision of this Agreement, no
Canadian Borrower shall be obligated to guaranty, and no Canadian Borrower shall be deemed to have
guaranteed, the Obligations of any US Borrower hereunder; provided further, that, for the avoidance
of doubt, the assets of any Canadian Borrower may not and shall not serve at any time, even
indirectly, as security for the performance or Obligations of any US Borrower. Each Borrower
agrees that its guaranty obligation hereunder is a continuing guaranty of payment and performance
and not of collection, that its obligations under this Section 12 shall not be discharged until
payment and performance, in full, of the Obligations has occurred, and that its obligations under
this Section 12 shall be absolute and unconditional, irrespective of, and unaffected by,

     (a) the genuineness, validity, regularity, enforceability or any future amendment of, or
change in, this Agreement, any other Loan Document or any other agreement, document or instrument
to which any Borrower is or may become a party;

     (b) the absence of any action to enforce this Agreement (including this Section 12) or
any other Loan Document or the waiver or consent by either Agent or any Lender with respect to any
of the provisions thereof;

     (c) the existence, value or condition of, or failure to perfect its Lien against, any security
for the Obligations or any action, or the absence of any action, by either Agent or any Lender in
respect thereof (including the release of any such security);

     (d) the insolvency of any Credit Party; or

     (e) any other action or circumstances that might otherwise constitute a legal or equitable
discharge or defense of a surety or guarantor.

Each Borrower shall be regarded, and shall be in the same position, as principal debtor with
respect to the Obligations guaranteed hereunder.

     12.2 Waivers by Borrowers.

     Each Borrower expressly waives all rights it may have now or in the future under any statute,
or at common law, or at law or in equity, or otherwise, to compel either Agent or any Lender to
marshal assets or to proceed in respect of the Obligations guaranteed hereunder against any other
Credit Party, any other party or against any security for the payment and performance of the
Obligations before proceeding against, or as a condition to proceeding against, such Borrower. It
is agreed among each Borrower, each Agent and Lenders that the foregoing waivers are of the essence
of the transaction contemplated by this Agreement and the other Loan Documents and that, but for
the provisions of this Section 12 and such waivers, Agents and Lenders would decline to
enter into this Agreement.

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     12.3 Benefit of Guaranty.

     Each Borrower agrees that the provisions of this Section 12 are for the benefit of
each Agent and Lender and their respective successors, transferees, endorsees and assigns, subject
to the restrictions regarding the guaranty by the Canadian Borrowers as set forth in Section
12.1 hereof, and nothing herein contained shall impair, as between any other Borrower and
either Agent or any Lender, the obligations of such other Borrower under the Loan Documents.

     12.4 Waiver of Subrogation, Etc.

     Notwithstanding anything to the contrary in this Agreement or in any other Loan Document, and
except as set forth in Section 12.7, each Borrower hereby expressly and irrevocably waives
any and all rights at law or in equity to subrogation, reimbursement, exoneration, contribution,
indemnification or set off and any and all defenses available to a
surety, guarantor or accommodation co-obligor. Each Borrower acknowledges and agrees that
this waiver is intended to benefit each Agent and Lender and shall not limit or otherwise affect
such Borrower’s liability hereunder or the enforceability of this Section 12, and that each
Agent and Lender and their respective successors and assigns are intended third party beneficiaries
of the waivers and agreements set forth in this Section 12.4.

     12.5 Election of Remedies.

     If either Agent or any Lender may, under applicable law, proceed to realize its benefits under
any of the Loan Documents giving such Agent or Lender a Lien upon any Collateral, whether owned by
any Borrower or by any other Person, either by judicial foreclosure or by non-judicial sale or
enforcement, such Agent or Lender may, at its sole option, determine which of its remedies or
rights it may pursue without affecting any of its rights and remedies under this Section
12. If, in the exercise of any of its rights and remedies, either Agent or any Lender shall
forfeit any of its rights or remedies, including its right to enter a deficiency judgment against
any Borrower or any other Person, whether because of any applicable laws pertaining to “election of
remedies” or the like, each Borrower hereby consents to such action by such Agent or Lender and
waives any claim based upon such action, even if such action by such Agent or Lender shall result
in a full or partial loss of any rights of subrogation that each Borrower might otherwise have had
but for such action by such Agent or Lender. Any election of remedies that results in the denial
or impairment of the right of either Agent or any Lender to seek a deficiency judgment against any
Borrower shall not impair any other Borrower’s obligation to pay the full amount of the
Obligations. In the event either Agent or any Lender shall bid at any foreclosure or trustee’s
sale or at any private sale permitted by law or the Loan Documents, such Agent or Lender may bid
all or less than the amount of the Obligations and the amount of such bid need not be paid by such
Agent or Lender but shall be credited against the Obligations. The amount of the successful bid at
any such sale, whether either Agent, any Lender or any other party is the successful bidder, shall
be conclusively deemed to be the fair market value of the Collateral and the difference between
such bid amount and the remaining balance of the Obligations shall be conclusively deemed to be the
amount of the Obligations guaranteed under this Section 12, notwithstanding that any present or
future law or court

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decision or ruling may have the effect of reducing the amount of any deficiency
claim to which either Agent or any Lender might otherwise be entitled but for such bidding at any
such sale.

     12.6 Limitation.

     Notwithstanding any provision herein contained to the contrary, each US Borrower’s liability
under this Section 12 (which liability is in any event in addition to amounts for which
such Borrower is primarily liable under Section 1) shall be limited to an amount not to exceed as
of any date of determination the greater of:

     (a) the net amount of all Loans advanced to any other Borrower under this Agreement and then
re-loaned or otherwise transferred to, or for the benefit of, such US Borrower; and

     (b) the amount that could be claimed by Agents and Lenders from such US Borrower under this
Section 12 without rendering such claim voidable or avoidable under Section 548 of Chapter
11 of the Bankruptcy Code or under any applicable state Uniform Fraudulent Transfer Act, Uniform
Fraudulent Conveyance Act or similar statute or common law after taking into account, among other
things, such US Borrower’s right of contribution and indemnification from each other Borrower under
Section 12.7.

     12.7 Contribution with Respect to Guaranty Obligations. 

     (a) To the extent that any Borrower shall make a payment under this Section 12 of all
or any of the Obligations (other than Loans made to that Borrower for which it is primarily liable)
(a “Guarantor Payment”) that, taking into account all other Guarantor Payments then
previously or concurrently made by any other Borrower, exceeds the amount that such Borrower would
otherwise have paid if each Borrower had paid the aggregate Obligations satisfied by such Guarantor
Payment in the same proportion that such Borrower’s “Allocable Amount” (as defined below) (as
determined immediately prior to such Guarantor Payment) bore to the aggregate Allocable Amounts of
each of the Borrowers as determined immediately prior to the making of such Guarantor Payment,
then, following indefeasible payment in full in cash of the Obligations and termination of the
Commitments, such Borrower shall be entitled to receive contribution and indemnification payments
from, and be reimbursed by, each other Borrower for the amount of such excess, pro rata based upon
their respective Allocable Amounts in effect immediately prior to such Guarantor Payment.

     (b) As of any date of determination, the “Allocable Amount” of any Borrower shall be
equal to the maximum amount of the claim that could then be recovered from such Borrower under this
Section 12 without rendering such claim voidable or avoidable under Section 548 of Chapter
11 of the Bankruptcy Code or under any applicable state Uniform Fraudulent Transfer Act, Uniform
Fraudulent Conveyance Act or similar statute or common law.

     (c) This Section 12.7 is intended only to define the relative rights of Borrowers and
nothing set forth in this Section 12.7 is intended to or shall impair the obligations of
Borrowers, jointly and severally, to pay any amounts as and when the same shall become due and
payable in accordance with the terms of this Agreement, including Section 12.1 and the

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restrictions therein. Nothing contained in this Section 12.7 shall limit the liability of
any Borrower to pay the Loans made directly or indirectly to that Borrower and accrued interest,
Fees and expenses with respect thereto for which such Borrower shall be primarily liable.

     (d) The parties hereto acknowledge that the rights of contribution and indemnification
hereunder shall constitute assets of the Borrower to which such contribution and indemnification is
owing.

     (e) The rights of the indemnifying Borrowers against other Credit Parties under this
Section 12.7 shall be exercisable upon the full and indefeasible payment of the Obligations
and the termination of the Commitments.

     12.8 Liability Cumulative.

     The liability of Borrowers under this Section 12 is in addition to and shall be cumulative
with all liabilities of each Borrower to either Agent or any Lender under this Agreement and the
other Loan Documents to which such Borrower is a party or in respect of any Obligations or
obligation of the other Borrower, without any limitation as to amount, unless the instrument or
agreement evidencing or creating such other liability specifically provides to the contrary.

13. LIENS AND LOAN PRIORITIES

     13.1 Priorities.

     It is the intention of the parties hereto that the Canadian Credit Parties not guarantee or
otherwise be liable for any of the US Obligations or that any of their assets constitute Collateral
for any of the US Obligations. Accordingly, notwithstanding any provision of this Agreement
(including any Annex hereto) or any other Loan Document to the contrary, but except as otherwise
expressly provided for in this Section 13.1, no cash or assets of any Canadian Credit Party
or any proceeds of any such assets shall be applied, directly or indirectly, to the US Obligations.
Notwithstanding any provision of this Agreement to the contrary, the parties acknowledge and agree
to the pledge of 65% of the Stock of any Canadian Credit Party owned by any US Credit Party to
secure the US Obligations. Notwithstanding any provisions of this Agreement or any of the other
Loan Documents to the contrary, the parties acknowledge and agree that all Collateral of the
Canadian Credit Parties and the US Credit Parties shall secure the Canadian Obligations, and there
shall be no requirement for the Canadian Agent or Canadian Lenders to seek recourse first or to
fully enforce their or its respective remedies with respect to, Collateral or Guaranties of the
Canadian Credit Parties prior to seeking or obtaining recourse with respect to the Collateral or
Guaranties of the US Credit Parties.

[Signature Pages Follow]

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IN WITNESS WHEREOF, this Agreement has been duly executed as of the date first written above.

	 	 	 	 	 
	 	 	AS US BORROWERS:
	 	 	WESCO DISTRIBUTION, INC.
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Daniel A. Brailer
	 

	 	 	 	 
	 	 	Name: Daniel A. Brailer
	 	 	Title: Vice President and Treasurer
	 
	 	 	 	 
	 	 	HERNING ENTERPRISES, INC.
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Daniel A. Brailer
	 

	 	 	 	 
	 	 	Name: Daniel A. Brailer
	 	 	Title: Treasurer
	 
	 	 	 	 
	 	 	WESCO EQUITY CORPORATION
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Daniel A. Brailer
	 

	 	 	 	 
	 	 	Name: Daniel A. Brailer
	 	 	Title: Treasurer
	 
	 	 	 	 
	 	 	WESCO NEVADA, LTD.
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Daniel A. Brailer
	 

	 	 	 	 
	 	 	Name: Daniel A. Brailer
	 	 	Title: Treasurer
	 
	 	 	 	 
	 	 	CARLTON-BATES COMPANY
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Daniel A. Brailer
	 

	 	 	 	 
	 	 	Name: Daniel A. Brailer
	 	 	Title: Treasurer
	 
	 	 	 	 
	 	 	CARLTON-BATES COMPANY OF TEXAS, L.P.
	 
	 	 	 	 
	 	 	By: Carlton-Bates Company Of Texas GP, Inc., its
General Partner
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Daniel A. Brailer
	 

	 	 	 	 
	 	 	Name: Daniel A. Brailer
	 	 	Title: Treasurer

[Signature Pages – WESCO Third Amended and Restated Credit Agreement]

 

 

AS CANADIAN BORROWERS:

	 	 	 	 	 
	 	 	WESCO DISTRIBUTION CANADA LP
	 
	 	 	 	 
	 	 	By: WESCO DISTRIBUTION CANADA
	 

	 	 	 	GP INC., its General Partner
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Daniel A. Brailer
	 

	 	 	 	 
	 	 	Name: Daniel A. Brailer
	 	 	Title: Treasurer

[Signature Pages – WESCO Third Amended and Restated Credit Agreement]

 

 

          The following Persons are signatories to this Agreement in their capacity as Credit
Parties and not as Borrowers.

	 	 	 	 	 	 	 
	 	 	AS US CREDIT PARTIES:	 	 
	 
	 	 	 	 	 	 
	 	 	WESCO INTERNATIONAL, INC.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Daniel A. Brailer	 	 
	 

	 	 	 	 	 	 
	 	 	Name: Daniel A. Brailer	 	 
	 	 	Title: Vice President and Treasurer	 	 
	 
	 	 	 	 	 	 
	 	 	WESCO FINANCE CORPORATION	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Daniel A. Brailer	 	 
	 

	 	 	 	 	 	 
	 	 	Name: Daniel A. Brailer	 	 
	 	 	Title: Vice President and Treasurer	 	 
	 
	 	 	 	 	 	 
	 	 	CDW HOLDCO, LLC	 	 
	 
	 	 	 	 	 	 
	 	 	By: WESCO DISTRIBUTION, INC., its 
Managing Member	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Daniel A. Brailer	 	 
	 

	 	 	 	 	 	 
	 	 	Name: Daniel A. Brailer	 	 
	 	 	Title: Vice President and Treasurer	 	 
	 
	 	 	 	 	 	 
	 	 	WDC HOLDING INC.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Daniel A. Brailer	 	 
	 

	 	 	 	 	 	 
	 	 	Name: Daniel A. Brailer	 	 
	 	 	Title: President	 	 
	 
	 	 	 	 	 	 
	 	 	WESCO NIGERIA, INC.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Daniel A. Brailer	 	 
	 

	 	 	 	 	 	 
	 	 	Name: Daniel A. Brailer	 	 
	 	 	Title: Treasurer and Corporate Secretary	 	 

[Signature Pages – WESCO Third Amended and Restated Credit Agreement]

 

 

	 	 	 	 	 	 	 
	 	 	CBC LP HOLDINGS, LLC	 	 
	 
	 	 	 	 	 	 
	 	 	By: Carlton-Bates Company, its Sole Member	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Daniel A. Brailer	 	 
	 

	 	 	 	 	 	 
	 	 	Name: Daniel A. Brailer	 	 
	 	 	Title: Treasurer	 	 
	 
	 	 	 	 	 	 
	 	 	CARLTON-BATES COMPANY OF TEXAS GP, INC.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Daniel A. Brailer	 	 
	 

	 	 	 	 	 	 
	 	 	Name: Daniel A. Brailer	 	 
	 	 	Title: Treasurer	 	 
	 
	 	 	 	 	 	 
	 	 	WESCO VOLTAGE, INC.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Daniel A. Brailer	 	 
	 

	 	 	 	 	 	 
	 	 	Name: Daniel A. Brailer	 	 
	 	 	Title: Treasurer	 	 

[Signature Pages — WESCO Third Amended and Restated Credit Agreement]

 

 

	 	 	 	 	 	 	 
	 	 	AS CANADIAN CREDIT PARTIES:	 	 
	 
	 	 	 	 	 	 
	 	 	WESCO DISTRIBUTION CANADA GP INC.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Daniel A. Brailer	 	 
	 

	 	 	 	 	 	 
	 	 	Name: Daniel A. Brailer	 	 
	 	 	Title: Treasurer	 	 
	 
	 	 	 	 	 	 
	 	 	WESCO DISTRIBUTION CANADA CO.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Daniel A. Brailer	 	 
	 

	 	 	 	 	 	 
	 	 	Name: Daniel A. Brailer	 	 
	 	 	Title: President	 	 

[Signature Pages — WESCO Third Amended and Restated Credit Agreement]

 

 

	 	 	 	 	 	 	 
	 	 	GENERAL ELECTRIC CAPITAL
CORPORATION, as Agent and US Lender	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ W. Russ Brightly	 	 
	 

	 	 	 	 	 	 
	 	 	Name: W. Russ Brightly	 	 
	 	 	Title: Its Duly Authorized Signatory	 	 

[Signature Pages — WESCO Third Amended and Restated Credit Agreement]

 

 

	 	 	 	 	 	 	 
	 	 	GE CANADA FINANCE HOLDING COMPANY, as Canadian Agent
and a Canadian Lender	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Jack F. Morrone	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:
	 	Jack F. Morrone	 	 
	 

	 	Title:
	 	Senior Vice PresidentGE Canada Finance

Holding Company
	 	 

[Signature Pages — WESCO Third Amended and Restated Credit Agreement]

 

 

	 	 	 	 	 	 	 
	 	 	BANK OF AMERICA, N.A.,

as Syndication Agent and US Lender	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Sandra S. Evans	 	 
	 

	 	 	 	 	 	 
	 	 	Name: Sandra S. Evans	 	 
	 	 	Title: SVP	 	 

[Signature Pages — WESCO Third Amended and Restated Credit Agreement]

 

 

	 	 	 	 	 	 	 
	 	 	THE CIT GROUP/BUSINESS CREDIT, INC.,

as Co-Documentation Agent and US Lender	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Mark J. Long	 	 
	 

	 	 	 	 	 	 
	 	 	Name: Mark J. Long	 	 
	 	 	Title: Vice President	 	 

[Signature Pages — WESCO Third Amended and Restated Credit Agreement]

 

 

	 	 	 	 	 	 	 
	 	 	CITIZENS BANK OF PENNSYLVANIA,

as Co-Documentation Agent and US Lender	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Don Cmar	 	 
	 

	 	 	 	 	 	 
	 	 	Name: Don Cmar	 	 
	 	 	Title: Vice President	 	 

[Signature Pages — WESCO Third Amended and Restated Credit Agreement]

 

 

	 	 	 	 	 	 	 
	 	 	PNC BANK, N.A.,

as US Lender	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ David B. Thayer	 	 
	 

	 	 	 	 	 	 
	 	 	Name: David B. Thayer	 	 
	 	 	Title: Vice President	 	 

[Signature Pages — WESCO Third Amended and Restated Credit Agreement]

 

 

	 	 	 	 	 	 	 
	 	 	FIRST COMMONWEALTH BANK

as US Lender	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Paul J. Oris	 	 
	 

	 	 	 	 	 	 
	 	 	Name: Paul J. Oris	 	 
	 	 	Title: Sr. Vice President	 	 

[Signature Pages — WESCO Third Amended and Restated Credit Agreement]

 

 

	 	 	 	 	 	 	 
	 	 	LASALLE BANK NATIONAL ASSOCIATION,

as US Lender	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Philip R. Metzger	 	 
	 

	 	 	 	 	 	 
	 	 	Name: Philip R. Metzger	 	 
	 	 	Title: First Vice President	 	 

[Signature Pages — WESCO Third Amended and Restated Credit Agreement]

 

 

	 	 	 	 	 	 	 
	 	 	JPMORGAN CHASE BANK, N.A.,

as US Lender	 	 
	 
	 

	 	By:
	 	/s/ Paul A. Tallbeneck	 	 
	 

	 	 	 	 	 	 
	 	 	Name: Paul A. Tallbeneck	 	 
	 	 	Title: A.V.P.	 	 

[Signature Pages — WESCO Third Amended and Restated Credit Agreement]

 

 

	 	 	 	 	 	 	 
	 	 	NATIONAL CITY BUSINESS CREDIT, INC.,

as US Lender	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Terry A. Graffis	 	 
	 

	 	 	 	 	 	 
	 	 	Name: Terry A. Graffis	 	 
	 	 	Title: Vice President	 	 

[Signature Pages — WESCO Third Amended and Restated Credit Agreement]

 

 

	 	 	 	 	 	 	 
	 	 	WACHOVIA CAPITAL FINANCE,

as US Lender	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Valerie Bailey	 	 
	 

	 	 	 	 	 	 
	 	 	Name: Valerie Bailey	 	 
	 	 	Title: Vice President	 	 

[Signature Pages — WESCO Third Amended and Restated Credit Agreement]

 

 

	 	 	 	 	 	 	 
	 	 	BANK OF AMERICA, N.A., CANADA BRANCH,

as Canadian Lender	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ J. Daryl Maclellan	 	 
	 

	 	 	 	 	 	 
	 	 	Name: J. Daryl Maclellan	 	 
	 	 	Title: President	 	 

[Signature Pages — WESCO Third Amended and Restated Credit Agreement]

 

 

	 	 	 	 	 	 	 
	 	 	CIT FINANCIAL LTD., as Canadian Lender	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Medina Sales De Andrade	 	 
	 

	 	 	 	 	 	 
	 	 	Name: Medina Sales De Andrade	 	 
	 	 	Title: Assistant Vice President	 	 

[Signature Pages — WESCO Third Amended and Restated Credit Agreement]

 

 

	 	 	 	 	 	 	 
	 	 	JPMORGAN CHASE BANK, N.A. TORONTO BRANCH, as Canadian
Lender	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Jeffrey Burdon	 	 
	 

	 	 	 	 	 	 
	 	 	Name: Jeffrey Burdon	 	 
	 	 	Title: Vice President	 	 

[Signature Pages — WESCO Third Amended and Restated Credit Agreement]

 

 

	 	 	 	 	 	 	 
	 	 	NATIONAL CITY BANK, CANADA BRANCH, as Canadian Lender	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ J. Andrew Riddell	 	 
	 

	 	 	 	 	 	 
	 	 	Name: J. Andrew Riddell	 	 
	 	 	Title: Senior Vice President	 	 

[Signature Pages — WESCO Third Amended and Restated Credit Agreement]

 

 

	 	 	 	 	 	 	 
	 	 	LASALLE BUSINESS CREDIT A DIVISION OF ABN AMRO BANK,
N.V., CANADA BRANCH, as Canadian Lender	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ L. Geoffrey Morphy	 	 
	 

	 	 	 	 	 	 
	 	 	Name: L. Geoffrey Morphy	 	 
	 	 	Title: First Vice President	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Darcy Mack	 	 
	 

	 	 	 	 	 	 
	 	 	Name: Darcy Mack	 	 
	 	 	Title: First Vice President	 	 

[Signature Pages — WESCO Third Amended and Restated Credit Agreement]

 

 

	 	 	 	 	 	 	 
	 	 	WACHOVIA CAPITAL FINANCE CORPORATION (CANADA)

Formerly, CONGRESS FINANCIAL CORPORATION (CANADA), as

Canadian Lender	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Enza Agosta	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:
	 	Enza Agosta	 	 
	 

	 	Title:
	 	Vice President	 	 
	 

	 	 	 	Wachovia Capital Finance Corporation	 	 
	 

	 	 	 	(Canada)
	 	 

[Signature Pages — WESCO Third Amended and Restated Credit Agreement]

 

 

ANNEX A (Recitals)

to

AMENDED AND RESTATED CREDIT AGREEMENT

DEFINITIONS

          Capitalized terms used in the Loan Documents shall have (unless otherwise provided elsewhere
in the Loan Documents) the following respective meanings and all references to Sections, Exhibits,
Schedules or Annexes in the following definitions shall refer to Sections, Exhibits, Schedules or
Annexes of or to the Agreement:

          “2006 Convertible Debenture” has the meaning ascribed to it in Section
6.3(a)(xxiv).

          “Account Debtor” means any Person who may become obligated to any Credit Party under,
with respect to, or on account of, an Account, Chattel Paper or General Intangibles (including a
payment intangible).

          “Accounting Changes” has the meaning ascribed thereto in Annex G.

          “Accounts” means all “accounts,” as such term is defined in the Code and in the PPSA,
and all “claims”, as such term is defined in the Quebec Civil Code, now owned or hereafter acquired
by any Credit Party, including (a) all accounts receivable, other receivables, book debts and other
forms of obligations (other than forms of obligations evidenced by Chattel Paper, or Instruments),
(including any such obligations that may be characterized as an account or contract right under the
Code), (b) all of each Credit Party’s rights in, to and under all purchase orders or receipts for
goods or services, (c) all of each Credit Party’s rights to any goods represented by any of the
foregoing (including unpaid sellers’ rights of rescission, replevin, reclamation and stoppage in
transit and rights to returned, reclaimed or repossessed goods), (d) all rights to payment due to
any Credit Party for property sold, leased, licensed, assigned or otherwise disposed of, for a
policy of insurance issued or to be issued, for a secondary obligation incurred or to be incurred,
for energy provided or to be provided, for the use or hire of a vessel under a charter or other
contract, arising out of the use of a credit card or charge card, or for services rendered or to be
rendered by such Credit Party or in connection with any other transaction (whether or not yet
earned by performance on the part of such Credit Party), (e) all health care insurance receivables
and (f) all collateral security of any kind, given by any Account Debtor or any other Person with
respect to any of the foregoing.

          “Acquisition Agreement” means that certain Agreement and Plan of Merger dated as of
October 2, 2006 by and among the WESCO Distribution, WESCO Voltage, CSC Holdings and Harvest
Partners, LLC, as stockholders’ representative.

          “Advance” means any Revolving Credit Advance or Swing Line Advance, as the context may
require.

          “Affiliate” means, with respect to any Person, (a) each Person that, directly or
indirectly, owns or controls, whether beneficially, or as a trustee, guardian or other fiduciary,

A-1

 

10% or more of the Stock having ordinary voting power in the election of directors of such Person,
(b) each Person that controls, is controlled by or is under common control with such Person, (c)
each of such Person’s officers, directors, joint venturers and partners and (d) in the case of
Borrowers, the immediate family members, spouses and lineal descendants of individuals who are
Affiliates of Borrower. For the purposes of this definition, “control” of a Person shall
mean the possession, directly or indirectly, of the power to direct or cause the direction of its
management or policies, whether through the ownership of voting securities, by contract or
otherwise; provided, however, that the term “Affiliate” shall specifically
exclude each Agent and each Lender.

          “Agent” means GE Capital in its capacity as Agent for Lenders or its successor
appointed pursuant to Section 9.7.

          “Agents” means Agent and the Canadian Agent.

          “Agreement” means this Third Amended and Restated Credit Agreement by and among
Borrowers, the other Credit Parties party thereto, GE Capital, as Agent and a US Lender, the
Canadian Agent and the other Lenders from time to time party thereto, as the same may be amended,
supplemented, restated or otherwise modified from time to time.

          “Appendices” has the meaning ascribed to it in the recitals to the Agreement.

          “Applicable Agent” means (a) with respect to matters relating solely to the Canadian
Obligations, Canadian Agent and (b) with respect to all other matters, Agent.

          “Applicable L/C Margin” means the per annum fee, from time to time in effect, payable
with respect to outstanding Letter of Credit Obligations as determined by reference to Section
1.5(a).

          “Applicable Margins” means collectively the Applicable L/C Margin, the Applicable
Unused Line Fee Margin, the Applicable Revolver BA Margin, the Applicable Revolver Index Margin and
the Applicable Revolver LIBOR Margin.

          “Applicable Revolver BA Margin” means the per annum interest rate from time to time in
effect and payable in addition to the BA Rate applicable to the Canadian Loan to Canadian
Borrowers, as determined by reference to Section 1.5(a).

          “Applicable Revolver Index Margin” means the per annum interest rate margin from time
to time in effect and payable in addition to the Index Rate applicable to the Revolving Loan, as
determined by reference to Section 1.5(a).

          “Applicable Revolver LIBOR Margin” means the per annum interest rate from time to time
in effect and payable in addition to the LIBOR Rate applicable to the US Revolving Loan, as
determined by reference to Section 1.5(a).

A-2

 

          “Applicable Unused Line Fee Margin” means the per annum fee, from time to time in
effect, payable in respect of Borrowers’ non-use of committed funds pursuant to Section
1.9(c), which fee is determined by reference to Section 1.5(a).

          “Assignment Agreement” has the meaning ascribed to it in Section 9.1(a).

          “Avon Agreement” means the Asset Purchase Agreement, dated December 12, 1997, by and
among Avon Electrical Supplies, Inc., Avon Electrical Products, Inc., Avon Datacom Corp., Avon
International West, Inc., Alert Electrical Supplies Corp., Avon Electrical International Corp., and
WESCO Distribution, as amended.

          “Bankruptcy Code” means the provisions of Title 11 of the United States Code, 11
U.S.C. §§ 101 et seq.

          “BA Period” means, with respect to any BA Rate Loan, each period commencing on a
Business Day selected by Borrower Representative pursuant to the Agreement and ending thirty (30),
sixty (60) or ninety (90) days thereafter, as selected by Borrower Representative’s irrevocable
notice to Agent as set forth in Section 1.5(e); provided, that the foregoing
provision relating to BA Periods is subject to the following:

          (a) if any BA Period would otherwise end on a day that is not a Business Day, such BA Period
shall be extended to the next succeeding Business Day unless the result of such extension would be
to carry such BA Period into another calendar month in which event such BA Period shall end on the
immediately preceding Business Day;

          (b) any BA Period that would otherwise extend beyond the Commitment Termination Date shall end
two (2) Business Days prior to such date;

          (c) any BA Period that begins on the last Business Day of a calendar month (or on a day for
which there is no numerically corresponding day in the calendar month at the end of such BA Period)
shall end on the last Business Day of a calendar month;

          (d) Borrower Representative shall select BA Periods so as not to require a payment or
prepayment of any BA Rate Loan during a BA Period for such Loan; and

          (e) Borrower Representative shall select BA Periods so that there shall be no more than 10
separate BA Rate Loans and LIBOR Loans, collectively, in existence at any one time.

          “BA Rate” means, at any time, the annual rate of interest which is the average of the
customary “BA thirty (30) to ninety (90) days” rates applicable to Canadian Dollar bankers’
acceptances displayed and identified as such on the “Telerate Page 3197” at approximately 11:00
a.m., (Toronto time), on the then most recent Determination Date (as defined below) or, if such
display or service ceases to exist, any other similar display and service designated by Canadian
Agent in existence at the relevant time (as adjusted by Canadian Agent after such time to reflect
any error in a posted rate or in the posted average rate of interest); provided, however, if no
such rates are then provided by Dow Jones Telerate Service or a similar service designated by

A-3

 

Canadian Agent, then the BA Rate at the relevant time shall be GE Capital Canada’s cost of
funds at such time for loans of a similar amount and term, as certified by GE Capital Canada, whose
certification thereof shall be binding and conclusive for all purposes hereof. The BA Rate shall be
fixed based upon the BA Rate in effect on the first day of the interest period of the applicable
loan (the “Determination Date”).

          “BA Rate Loans” means at any time that portion of the Loans bearing interest at rates
determined solely by reference to a BA Rate, such Loans being available only to Canadian Borrowers
in Canadian Dollars.

          “Blocked Accounts” has the meaning ascribed to it in Annex C.

          “Borrower” and “Borrowers” have the respective meanings ascribed thereto in
the preamble to the Agreement.

          “Borrower Representative” means WESCO Distribution, Inc. in its capacity as Borrower
Representative pursuant to the provision of Section 1.1(c).

          “Borrowers Pledge Agreement” means the Second Amended and Restated Pledge Agreements
dated as of the Closing Date, each executed by the applicable Borrower in favor of the applicable
Agent and each pledging all Stock of their respective Subsidiaries, if any, and all Intercompany
Notes owing to or held by each of them.

          “Borrowing Availability” means as of any date of determination (a) as to US Borrowers,
US Borrowing Availability, (b) as to Canadian Borrowers, Canadian Borrowing Availability; and (c)
as to all Borrowers in the aggregate, the sum of US Borrowing Availability and Canadian Borrowing
Availability.

          “Borrowing Base” means as the context may require, the US Borrowing Base, the Canadian
Borrowing Base or any such Borrowing Base.

          “Borrowing Base Certificate” means a certificate to be executed and delivered from
time to time by the Borrower Representative in the form attached to the Agreement as Exhibit
4.1(b).

          “Business Day” means any day that is not a Saturday, a Sunday or a day on which banks
are required or permitted to be closed in the State of New York or in the Province of Ontario
Canada and in reference to LIBOR Loans shall mean any such day that is also a LIBOR Business Day.

          “Calvert” means Calvert Wire & Cable Corporation, a Delaware corporation.

          “Canadian Agent” means GE Canada Finance Holding Company, in its capacity as Canadian
agent, and its successors and assigns.

          “Canadian Benefit Plans” means all employee benefit plans of any nature or kind
whatsoever that are not Canadian Pension Plans and are maintained or contributed to by any
Credit Party having employees in Canada and does not include the Canada Pension Plan, the

A-4

 

Quebec Pension Plan, Canadian Employment Insurance or any plan of a substantially similar nature,
which is maintained by the Government of Canada or any Canadian Provincial Government.

          “Canadian Borrowers” has the meaning ascribed thereto in the preamble to the
Agreement.

          “Canadian Borrowing Availability” means as of any date of determination as to all
Canadian Borrowers, the lesser of (a) the Maximum Canadian Amount and (b) the Canadian Borrowing
Base, in each case, less the sum of the aggregate Canadian Revolving Credit Advances and
Canadian Swing Line Loan then outstanding to Canadian Borrowers; provided that for purposes
of assuring that the aggregate amount of the Canadian Revolving Loan and the US Revolving Loan do
not at any time exceed the aggregate Maximum Canadian Amount and the aggregate Maximum US Amount,
under this definition the Canadian Borrowing Base, the Canadian Revolving Loan and the
Canadian Swing Line Advances shall be computed in the Dollar Equivalent Amount thereof.

          “Canadian Borrowing Base” means, as of any date of determination by Agent, from time
to time, an amount equal to the sum of:

          (a) up to 85% of the book value of Canadian Borrowers’ Eligible Accounts at such time; and

          (b) the lesser of: (i) up to 65% of the book value of Canadian Borrowers’ then Eligible
Inventory valued at the lower of cost (determined on a first in, first out basis) or market or (ii)
up to 85% of the appraised then Net Orderly Liquidation Value of Canadian Borrowers’ Eligible
Inventory;

in each case, less any Reserves established by Agent at such time.

All computations under this definition shall be made in Canadian Dollars, except as otherwise
indicated in the text of this Agreement.

          “Canadian Collection Account” means that certain account of Canadian Agent, account
number 1209329 (in the case of Canadian Dollars) or 4050621 (in the case of Dollars) in the
name of Canadian Agent at Royal Bank of Canada in Toronto, or such other account(s) as may be
specified in writing by Canadian Agent as the “Collection Account-Canadian”.

          “Canadian Credit Party” means any Credit Party organized or existing pursuant to the
laws of Canada or any province or territory thereof.

          “Canadian Dollars” or “CD(s)” means lawful currency of Canada.

          “Canadian Dollar Equivalent Amount” shall mean: (a) the number of Canadian Dollars
that is equivalent to an amount of a currency other than Canadian Dollars, determined by
applying the selling rate of Royal Bank of Canada or another bank of comparable size selected

A-5

 

by Canadian Agent; or (b) in the event that Canadian Agent shall not at the time be offering such a
rate, the amount of Canadian Dollars that Canadian Agent, in its sole judgment, specifies as
sufficient to reimburse or provide funds to Canadian Agent in respect of any such amounts; in
either case as and when determined by Canadian Agent.

          “Canadian Facilities” means the Canadian Revolving Loans, the Canadian Revolving Loan
Commitment, the Canadian Swing Line Advances and the Canadian Letter of Credit Obligations.

          “Canadian L/C Sublimit” has the meaning ascribed to it in Annex B.

          “Canadian Lenders” means GE Capital Canada, each other Person, if any, named on the
signature page of this Agreement as a Canadian Lender (each of which shall be a Person allowed to
extend credit in Canadian Dollars to the Canadian Borrowers in Canada without withholding tax
liability), and, if any such Lender shall decide to assign all or any portion of the Canadian
Obligations, such term shall include any assignee of such Canadian Lender (which is itself a
financial institution allowed to extend credit in Canadian Dollars to the Canadian Borrowers in
Canada without withholding tax liability).

          “Canadian Letter of Credit Obligations” has the meaning ascribed thereto in Section
1.2.

          “Canadian Letters of Credit” means Letters of Credit issued for the account of any
Canadian Borrower.

          “Canadian Loan Account” has the meaning ascribed thereto in Section 1.12.

          “Canadian Loans” means the Canadian Revolving Loan and the Canadian Swing Line
Advances.

          “Canadian Obligations” means Obligations with respect to the Canadian Facilities.

          “Canadian Pension Plans” means each plan which is considered to be a pension plan for
the purposes of any applicable pension benefits standards statute and/or regulation in Canada
established, maintained or contributed to by any Credit Party for its employees or former employees
and does not include the Canada Pension Plan or the Quebec Pension Plan which is maintained by the
Government of Canada or the Government of Quebec, respectively.

          “Canadian Revolving Credit Advances” means Revolving Credit Advances outstanding to
Canadian Borrowers.

          “Canadian Revolving Loan Commitment” means (a) as to any Canadian Lender, the
aggregate commitment of such Lender to make Canadian Revolving Credit Advances or incur Canadian
Letter of Credit Obligations as set forth on Annex J to the Agreement (in each case
expressed in Dollars) or in the most recent Assignment Agreement executed by such Lender and (b) as
to all Canadian Lenders, the aggregate commitment of all Canadian Lenders to make

A-6

 

Canadian Revolving Credit Advances or incur Canadian Letter of Credit Obligations, which
aggregate commitment shall be $65,000,000 on the Closing Date, as such amount may be adjusted, if
at all, from time to time in accordance with the Agreement.

          “Canadian Swing Line Advances” has the meaning ascribed thereto in Section
1.1(b).

          “Capital Expenditures” means, with respect to any Person, all expenditures (by the
expenditure of cash or the incurrence of Indebtedness) by such Person during any measuring period
for any fixed assets or improvements or for replacements, substitutions or additions thereto, that
have a useful life of more than one year and that are required to be capitalized under GAAP.

          “Capital Lease” means, with respect to any Person, any lease of any property (whether
real, personal or mixed) by such Person as lessee that, in accordance with GAAP, would be required
to be classified and accounted for as a capital lease on a balance sheet of such Person.

          “Capital Lease Obligation” means, with respect to any Capital Lease of any Person, the
amount of the obligation of the lessee thereunder that, in accordance with GAAP, would appear on a
balance sheet of such lessee in respect of such Capital Lease.

          “Carlton-Bates” means Carlton-Bates Company, an Arkansas corporation.

          “Cash Collateral Account” has the meaning ascribed to it in Annex B.

          “Cash Equivalents” has the meaning ascribed to it in Annex B.

          “Cash Management Systems” has the meaning ascribed to it in Section 1.8.

          “CB-Texas” means Carlton-Bates Company of Texas, LP, a Texas limited partnership.

          “CB WESCO Note” means that certain unsecured promissory note not to exceed
$165,000,000 in the aggregate issued by WESCO Canada to WDC Holding in connection with the
Carlton-Bates Acquisition.

          “CDW” means CDW Holdco, LLC.

          “Change of Control” means any of the following: (a) any person or group of persons
(within the meaning of the Securities Exchange Act of 1934) shall have acquired beneficial
ownership (within the meaning of Rule 13d-3 promulgated by the Securities and Exchange Commission
under the Securities Exchange Act of 1934) of 30% or more of the issued and outstanding shares of
capital Stock of Holdings having the right to vote for the election of directors of Holdings under
ordinary circumstances; (b) during any period of twelve consecutive calendar months, individuals
who at the beginning of such period constituted the board of directors of Holdings (together with
any new directors whose election by the board of directors of Holdings or whose nomination for
election by the Stockholders of Holdings was approved by

A-7

 

a vote of at least two-thirds of the directors then still in office who either were directors at
the beginning of such period or whose election or nomination for election was previously so
approved) cease for any reason other than death or disability to constitute a majority of the
directors then in office; (c) Holdings ceases to, directly or indirectly, own and control all of
the economic and voting rights associated with all of the outstanding capital Stock of WESCO
Distribution or WESCO Finance or any other Subsidiary; (d) any Borrower ceases to own and control
all of the economic and voting rights associated with all of the outstanding capital Stock of any
of its Subsidiaries; or (e) Holdings ceases to, directly or indirectly, own and control all of the
economic and voting rights associated with all of the outstanding capital stock of WDC Holding or
(f) the occurrence of any Change of Control or Fundamental Change under any indenture, note or
other agreement, instrument or document relating to any Subordinated Debt.

          “Charges” means all federal, state, county, city, municipal, local, foreign or other
governmental taxes (including taxes owed to the PBGC at the time due and payable), levies,
assessments, charges, liens, claims or encumbrances upon or relating to (a) the Collateral, (b) the
Obligations, (c) the employees, payroll, income, capital or gross receipts of any Credit Party, (d)
any Credit Party’s ownership or use of any properties or other assets, or (e) any other aspect of
any Credit Party’s business.

          “Chattel Paper” means any “chattel paper,” as such term is defined in the Code,
including electronic chattel paper, now owned or hereafter acquired by any Credit Party.

          “Closing
Date” means November 1, 2006.

          “Closing Checklist” means the schedule, including all appendices, exhibits or
schedules thereto, listing certain documents and information to be delivered in connection with the
Agreement, the other Loan Documents and the transactions contemplated thereunder, substantially in
the form attached hereto as Annex D.

          “Code” means the Uniform Commercial Code as the same may, from time to time, be
enacted and in effect in the State of New York; provided, that to the extent that the Code
is used to define any term herein or in any Loan Document and such term is defined differently in
different Articles or Divisions of the Code, the definition of such term contained in Article or
Division 9 shall govern; provided further, that in the event that, by reason of
mandatory provisions of law, any or all of the attachment, perfection or priority of, or remedies
with respect to, Agent’s or any Lender’s Lien on any Collateral is governed by the Uniform
Commercial Code or such foreign personal property security laws as enacted and in effect in a
jurisdiction other than the State of New York, the term “Code” shall mean the Uniform
Commercial Code or such foreign personal property security laws as enacted and in effect in such
other jurisdiction solely for purposes of the provisions thereof relating to such attachment,
perfection, priority or remedies and for purposes of definitions related to such provisions; and
provided further, that if such foreign personal property security laws do not
contain a definition that is used in another Loan Document, the definition that is used in such
other Loan Document shall have the meaning given to it in the Code as though the references to the
words “or such foreign personal property security laws” in the second proviso of this definition do
not exist.

A-8

 

          “Collateral” means the property covered by the Security Agreements and the other
Collateral Documents and any other property, real or personal, tangible or intangible, now existing
or hereafter acquired, that may at any time be or become subject to a security interest or Lien in
favor of either Agent to secure the Obligations.

          “Collateral Documents” means the Security Agreement, the Pledge Agreements, the Deeds
of Hypothec, the Debenture Pledge Agreement, the Guaranties, the Patent Security Agreement, the
Trademark Security Agreement, the Copyright Security Agreement and all similar agreements entered
into guaranteeing payment of, or granting a Lien upon property as security for payment of, the
Obligations.

          “Collateral Reports” means the reports with respect to the Collateral referred to in
Annex F.

          “Collection Account” means the US Collection Account or the Canadian Collection
Account, as applicable.

          “Commitment
Termination Date” means the earliest of (a) November 1, 2012, (b) the
date of termination of Lenders’ obligations to make Advances and to incur Letter of Credit
Obligations or permit existing Loans to remain outstanding pursuant to Section 8.2(b), and
(c) the date of indefeasible prepayment in full by Borrowers of the Loans and the cancellation and
return (or stand-by guarantee) of all Letters of Credit or the cash collateralization of all Letter
of Credit Obligations pursuant to Annex B, and the permanent reduction of the Commitments
to zero dollars ($0).

          “Commitments” means (a) as to any Lender, the aggregate of such Lender’s Revolving
Loan Commitment (including without duplication the applicable Swing Line Lender’s Swing Line
Commitment as a subset of its Revolving Loan Commitment) as set forth on Annex J to the
Agreement or in the most recent Assignment Agreement executed by such Lender and (b) as to all
Lenders, the aggregate of all Lenders’ Revolving Loan Commitments (including without duplication
the applicable Swing Line Lender’s Swing Line Commitment as a subset of its Revolving Loan
Commitment), which aggregate commitment shall be Four Hundred and Forty Million Dollars
($440,000,000) on the Closing Date, as to each of clauses (a) and (b), as such
Commitments may be reduced, amortized or adjusted from time to time in accordance with the
Agreement.

          “Compliance Certificate” has the meaning ascribed to it in Annex E.

          “Concentration Accounts” has the meaning ascribed to it in Annex C.

          “Contracts” means all “contracts,” as such term is defined in the Code, now owned or
hereafter acquired by any Credit Party, in any event, including all contracts, undertakings, or
agreements (other than rights evidenced by Chattel Paper, Documents or Instruments) in or under
which any Credit Party may now or hereafter have any right, title or interest, including any
agreement relating to the terms of payment or the terms of performance of any Account.

A-9

 

          “Control Letter” means a letter agreement between the Applicable Agent and (i) the
issuer of uncertificated securities with respect to uncertificated securities in the name of any
Credit Party, (ii) a securities intermediary with respect to securities, whether certificated or
uncertificated, securities entitlements and other financial assets held in a securities account in
the name of any Credit Party, (iii) a futures commission merchant or clearing house, as applicable,
with respect to commodity accounts and commodity contracts held by any Credit Party, whereby, among
other things, the issuer, securities intermediary or futures commission merchant disclaims any
security interest in the applicable financial assets, acknowledges the Lien of the Applicable
Agent, on behalf of itself and Lenders, on such financial assets, and agrees to follow the
instructions or entitlement orders of Agent without further consent by the affected Credit Party.

          “Copyright License” means any and all rights now owned or hereafter acquired by any
Credit Party under any written agreement granting any right to use any Copyright or Copyright
registration.

          “Copyright Security Agreement” means the Second Amended and Restated Copyright
Security Agreement made in favor of Agent, on behalf of itself and Lenders, and in favor of
Canadian Agent, on behalf of itself and Canadian Lenders by each applicable Credit Party.

          “Copyrights” means all of the following now owned or hereafter adopted or acquired by
any Credit Party: (a) all copyrights and General Intangibles of like nature (whether registered or
unregistered), all registrations and recordings thereof, and all applications in connection
therewith, including all registrations, recordings and applications in the United States Copyright
Office or in any similar office or agency of the United States, any state or territory thereof, or
any other country or any political subdivision thereof, and (b) all reissues, extensions or
renewals thereof.

          “Credit Parties” means Holdings, each Borrower, WESCO Finance, CDW, WDC Holding, WESCO
Nigeria, CBC LP Holdings, LLC, Carlton-Bates Company of Texas GP, Inc., WESCO DC GP, WESCO Canada,
WESCO Voltage and each of their respective Subsidiaries.

          “CSC” means Communications Supply Corporation, a Connecticut corporation.

          “CSC Acquisition” means the acquisition by WDC Holding of all of the outstanding
capital stock of CSC Holdings pursuant to the Acquisition Agreement, and the transfer of 100% of
such Stock of CSC Holdings to WESCO Canada within five (5) days of such initial acquisition.

          “CSC Borrowers” means CSC, Calvert and Liberty.

          “CSC Holdings” means Communications Supply Holdings, Inc., a Delaware corporation.

A-10

 

          “Debenture Pledge Agreement” means the various Second Amended and Restated Pledges of
Debenture securing the Obligations, executed by one or more Credit Parties in favor of Agent, on
behalf of Agent and the Lenders.

          “Debentures” means the debentures executed and issued to Agent, on behalf of Agent and
the Lenders, by one or more Credit Parties under the Deeds of Hypothec.

          “Deeds of Hypothec” means the various deeds of hypothec securing the Obligations,
executed by one or more Credit Parties in favor of Agent, on behalf of Agent and the Lenders.

          “Default” means any event that, with the passage of time or notice or both, would,
unless cured or waived, become an Event of Default.

          “Default Rate” has the meaning ascribed to it in Section 1.5(d).

          “Deposit Accounts” means all “deposit accounts” as such term is defined in the Code,
now or hereafter held in the name of any Credit Party.

          “Design License” means rights under any written agreement now owned or hereafter
acquired by any Credit Party granting any right to use any Design.

          “Designs” means the following now owned or hereafter acquired by any Credit Party: (a)
all industrial designs, design patents and other designs now owned or existing or hereafter adopted
or acquired, all registrations and recordings thereof and all applications in connection therewith,
including, without limitation, all registrations, recordings and applications in the Canadian
Industrial Designs Office or any similar office in any country and all records thereof and (b) all
reissues, extensions or renewals thereof.

          “Disbursement Accounts” has the meaning ascribed to it in Annex C.

          “Disclosure Schedules” means the Schedules prepared by Borrowers and denominated as
Disclosure Schedules (3.1) through (6.20(c)) in the Index to the Agreement.

          “Documents” means all “documents,” as such term is defined in the Code, now owned or
hereafter acquired by any Credit Party, wherever located.

          “Dollar Equivalent Amount” of any currency means (i) the amount of such currency if
such currency is Dollars or (ii) the equivalent amount in Dollars of such amount of any other
currency, if such currency is any currency other than Dollars, calculated on the basis of the
arithmetical mean for the buy and sell spot rates of exchange quoted to Agent for such currency in
New York at approximately 11:00 a.m. New York time on such date, rounded up to the nearest amount
of such currency as determined by Agent.

          “Dollars” or “$” means lawful currency of the United States of America or the
Dollar Equivalent Amount, as applicable.

A-11

 

          “EBITDA” means, with respect to any Person for any fiscal period, without duplication,
an amount equal to (a) consolidated net income of such Person for such period, determined in
accordance with GAAP, minus (b) the sum of (i) income tax credits, (ii) interest income,
(iii) gain from extraordinary items for such period, (iv) any aggregate net gain (but not
any aggregate net loss) during such period arising from the sale, exchange or other
disposition of capital assets by such Person (including any fixed assets, whether tangible or
intangible, all inventory sold in conjunction with the disposition of fixed assets and all
securities), and (v) any other non-cash gains that have been added in determining consolidated net
income, in each case to the extent included in the calculation of consolidated net income of such
Person for such period in accordance with GAAP, but without duplication, plus (c) the sum
of (i) any provision for income taxes, (ii) Interest Expense, (iii) loss from non-cash
extraordinary items for such period, (iv) the amount of non-cash charges (including depreciation,
amortization and non-cash charges associated with the impairment of goodwill) for such period, (v)
amortized debt discount for such period, and (vi) the amount of any deduction to consolidated net
income as the result of any grant to any members of the management of such Person of any Stock, in
each case to the extent included in the calculation of consolidated net income of such Person for
such period in accordance with GAAP, but without duplication. For purposes of this definition, the
following items shall be excluded in determining consolidated net income of a Person: (1) the
income (or deficit) of any other Person accrued prior to the date it became a Subsidiary of, or was
merged or consolidated into, such Person or any of such Person’s Subsidiaries; (2) the income (or
deficit) of any other Person (other than a Subsidiary) in which such Person has an ownership
interest, except to the extent any such income has actually been received by such Person in the
form of cash dividends or distributions; (3) the undistributed earnings of any Subsidiary of such
Person to the extent that the declaration or payment of dividends or similar distributions by such
Subsidiary is not at the time permitted by the terms of any contractual obligation or requirement
of law applicable to such Subsidiary; (4) any restoration to income of any contingency reserve,
except to the extent that provision for such reserve was made out of income accrued during such
period; (5) any write-up of any asset; (6) any net gain from the collection of the proceeds of life
insurance policies; (7) any net gain arising from the acquisition of any securities, under GAAP, of
such Person, (8) in the case of a successor to such Person by consolidation or merger or as a
transferee of its assets, any earnings of such successor prior to such consolidation, merger or
transfer of assets, and (9) any deferred credit representing the excess of equity in any Subsidiary
of such Person at the date of acquisition of such Subsidiary over the cost to such Person of the
investment in such Subsidiary.

          “Eligible Accounts” has the meaning ascribed to it in Section 1.6 of the
Agreement.

          “Eligible Inventory” has the meaning ascribed to it in Section 1.7 of the
Agreement.

          “Eligible Securitization Receivables” means those accounts receivable meeting the
criteria set forth on Exhibit A attached hereto; provided that, no such accounts shall be
Eligible Securitization Receivables unless and until Agent shall have received the Collateral Audit
of Domestic Receivables performed by FTI Consulting in compliance, on an annual basis, with
clause (e) of Annex (E).

A-12

 

          “Environmental Laws” means all applicable federal, state, local and foreign laws,
statutes, ordinances, codes, rules, standards, orders-in-council and regulations, now or hereafter
in effect, and any applicable judicial or administrative interpretation thereof, including any
applicable judicial or administrative order, consent decree, order or judgment, imposing
liability or standards of conduct for or relating to the regulation and protection of human health,
safety, the environment and natural resources (including ambient air, surface water, groundwater,
wetlands, land surface or subsurface strata, wildlife, aquatic species and vegetation).
Environmental Laws include the Comprehensive Environmental Response, Compensation, and Liability
Act of 1980 (42 U.S.C. §§ 9601 et seq.) (“CERCLA”); the Hazardous Materials
Transportation Authorization Act of 1994 (49 U.S.C. §§ 5101 et seq.); the Federal
Insecticide, Fungicide, and Rodenticide Act (7 U.S.C. §§ 136 et seq.); the Solid Waste
Disposal Act (42 U.S.C. §§ 6901 et seq.); the Toxic Substance Control Act (15 U.S.C. §§
2601 et seq.); the Clean Air Act (42 U.S.C. §§ 7401 et seq.); the Federal Water
Pollution Control Act (33 U.S.C. §§ 1251 et seq.); the Occupational Safety and Health Act
(29 U.S.C. §§ 651 et seq.); and the Safe Drinking Water Act (42 U.S.C. §§ 300(f) et
seq.), and any and all regulations promulgated thereunder, and all analogous state, local and
foreign counterparts or equivalents and any transfer of ownership notification or approval
statutes.

          “Environmental Liabilities” means, with respect to any Person, all liabilities,
obligations, responsibilities, response, remedial and removal costs, investigation and feasibility
study costs, capital costs, operation and maintenance costs, losses, damages, punitive damages,
property damages, natural resource damages, consequential damages, treble damages, costs and
expenses (including all reasonable fees, disbursements and expenses of counsel, experts and
consultants), fines, penalties, sanctions and interest incurred as a result of or related to any
claim, suit, action, investigation, proceeding or demand by any Person, whether based in contract,
tort, implied or express warranty, strict liability, criminal or civil statute or common law,
including any arising under or related to any Environmental Laws, Environmental Permits, or in
connection with any Release or threatened Release or presence of a Hazardous Material whether on,
at, in, under, from or about or in the vicinity of any real or personal property.

          “Environmental Permits” means all permits, licenses, authorizations, certificates,
approvals or registrations required by any Governmental Authority under any Environmental Laws.

          “Equipment” means all “equipment,” as such term is defined in the Code, now owned or
hereafter acquired by any Credit Party, wherever located and, in any event, including all such
Credit Party’s machinery and equipment, including processing equipment, conveyors, machine tools,
data processing and computer equipment, including embedded software and peripheral equipment and
all engineering, processing and manufacturing equipment, office machinery, furniture, materials
handling equipment, tools, attachments, accessories, automotive equipment, trailers, trucks,
forklifts, molds, dies, stamps, motor vehicles, rolling stock and other equipment of every kind and
nature, trade fixtures and fixtures not forming a part of real property, together with all
additions and accessions thereto, replacements therefor, all parts therefor, all substitutes for
any of the foregoing, fuel therefor, and all manuals, drawings, instructions, warranties and rights
with respect thereto, and all products and proceeds thereof and condemnation awards and insurance
proceeds with respect thereto.

A-13

 

          “ERISA” means the Employee Retirement Income Security Act of 1974, as amended from
time to time, and any regulations promulgated thereunder.

          “ERISA Affiliate” means, with respect to any Credit Party, any trade or business
(whether or not incorporated) that, together with such Credit Party, are treated as a single
employer within the meaning of Sections 414(b), (c), (m) or (o) of the IRC.

          “ERISA Event” means, with respect to any Credit Party or any ERISA Affiliate, (a) any
event described in Section 4043(c) of ERISA with respect to a Title IV Plan; (b) the withdrawal of
any Credit Party or ERISA Affiliate from a Title IV Plan subject to Section 4063 of ERISA during a
plan year in which it was a substantial employer, as defined in Section 4001(a)(2) of ERISA; (c)
the complete or partial withdrawal of any Credit Party or any ERISA Affiliate from any
Multiemployer Plan; (d) the filing of a notice of intent to terminate a Title IV Plan or the
treatment of a plan amendment as a termination under Section 4041 of ERISA; (e) the institution of
proceedings to terminate a Title IV Plan or Multiemployer Plan by the PBGC; (f) the failure by any
Credit Party or ERISA Affiliate to make when due required contributions to a Multiemployer Plan or
Title IV Plan unless such failure is cured within 30 days; (g) any other event or condition that
might reasonably be expected to constitute grounds under Section 4042 of ERISA for the termination
of, or the appointment of a trustee to administer, any Title IV Plan or Multiemployer Plan or for
the imposition of liability under Section 4069 or 4212(c) of ERISA; (h) the termination of a
Multiemployer Plan under Section 4041A of ERISA or the reorganization or insolvency of a
Multiemployer Plan under Section 4241 or 4245 of ERISA; or (i) the loss of a Qualified Plan’s
qualification or tax exempt status; or (j) the termination of a Plan described in Section 4064 of
ERISA.

          “ESOP” means a Plan that is intended to satisfy the requirements of Section 4975(e)(7)
of the IRC.

          “Event of Default” has the meaning ascribed to it in Section 8.1.

          “Existing Credit Agreement” has the meaning ascribed thereto in the recitals to this
Agreement.

          “Facilities” means the US Facilities and the Canadian Facilities and
“Facility” means any one of them as the context permits.

          “Fair Labor Standards Act” means the Fair Labor Standards Act, 29 U.S.C. §201 et seq.

          “Federal Funds Rate” means, for any day, a floating rate equal to the weighted average
of the rates on overnight federal funds transactions among members of the Federal Reserve System,
as determined by Agent in its sole discretion, which determination shall be final, binding and
conclusive (absent manifest error).

          “Federal Reserve Board” means the Board of Governors of the Federal Reserve System.

A-14

 

          “Fees” means any and all fees payable to Agent or to Canadian Agent or to any Lender
pursuant to the Agreement or any of the other Loan Documents.

          “Financial Covenants” means the financial covenants set forth in Annex G.

          “Financial Statements” means the consolidated and consolidating income statements,
statements of cash flows and balance sheets of Borrowers and Holdings delivered in accordance with
Section 3.4 and Annex E.

          “Fiscal Month” means any of the monthly accounting periods of Borrowers.

          “Fiscal Quarter” means any of the quarterly accounting periods of Borrowers and
Holdings, ending on March 31, June 30, September 30 and December 31 of each year.

          “Fiscal Year” means any of the annual accounting periods of Borrowers ending on
December 31 of each year.

          “Fixed Charges” means, with respect to any Person for any fiscal period, (a) the
aggregate of all cash Interest Expense paid or accrued during such period, plus (b) scheduled
payments of principal with respect to Indebtedness during such period, plus (c) cash payments in
respect of earn out agreements, plus (d) Capital Expenditures during such period (provided,
however, that up to $2,500,000 of net cash proceeds from any sales of real property
during such period shall be excluded so long as such net cash proceeds are used to make Capital
Expenditures), plus (e) cash dividends or other cash distributions paid, payable or declared in
respect of equity interests during such period, plus (f) cash Taxes paid or payable during such
period plus (g) any cash paid or payable in connection with a repurchase of Holdings’ publicly
traded Common Stock in a transaction permitted by Section 6.14(g). For greater certainty,
it is understood and agreed that cash payments made at closing in connection with the CSC
Acquisition (as well as the purchase price adjustments contemplated by the Acquisition Agreement
and Escrow Agreements) and Permitted Acquisitions, each as completed in compliance with Section
6.1(a), shall not constitute Fixed Charges.

          “Fixed Charge Coverage Ratio” means, with respect to any Person for any fiscal period,
the ratio of EBITDA to Fixed Charges.

          “Fixtures” means all “fixtures” as such term is defined in the Code, now owned or
hereafter acquired by any Credit Party.

          “Funded Debt” means, with respect to any Person, without duplication, all Indebtedness
for borrowed money evidenced by notes, bonds, debentures, or similar evidences of Indebtedness that
by its terms matures more than one year from, or is directly or indirectly renewable or extendible
at such Person’s option under a revolving credit or similar agreement obligating the lender or
lenders to extend credit over a period of more than one year from the date of creation thereof, and
specifically including Capital Lease Obligations, current maturities of long-term debt, revolving
credit and short-term debt extendible beyond one year at the option of the debtor, and also
including, in the case of Borrowers, the Obligations and, without duplication, Guaranteed
Indebtedness consisting of guaranties of Funded Debt of other Persons.

A-15

 

          “GAAP” means generally accepted accounting principles in the United States of America,
consistently applied, as such term is further defined in Annex G to the Agreement.

          “GE Capital” means General Electric Capital Corporation, a Delaware corporation.

          “GE Capital Canada” has the meaning ascribed to it in the preamble to the Agreement.

          “GE Capital Fee Letter” means that certain letter, dated as of even date herewith,
between GE Capital and Borrowers with respect to certain Fees to be paid from time to time by
Borrowers to GE Capital.

          “General Intangibles” means all “general intangibles,” as such term is defined in the
Code, now owned or hereafter acquired by any Credit Party, including all right, title and interest
that such Credit Party may now or hereafter have in or under any Contract, all payment intangibles,
customer lists, Licenses, Copyrights, Trademarks, Patents, and all applications therefor and
reissues, extensions or renewals thereof, rights in Intellectual Property, interests in
partnerships, joint ventures and other business associations, licenses, permits, copyrights, trade
secrets, proprietary or confidential information, inventions (whether or not patented or
patentable), technical information, procedures, designs, knowledge, know-how, software, data bases,
data, skill, expertise, experience, processes, models, drawings, materials and records, goodwill
(including the goodwill associated with any Trademark or Trademark License), all rights and claims
in or under insurance policies (including insurance for fire, damage, loss and casualty, whether
covering personal property, real property, tangible rights or intangible rights, all liability,
life, key man and business interruption insurance, and all unearned premiums), uncertificated
securities, choses in action, deposit, checking and other bank accounts, rights to receive tax
refunds and other payments, rights to receive dividends, distributions, cash, Instruments and other
property in respect of or in exchange for pledged Stock and Investment Property, rights of
indemnification, all books and records, correspondence, credit files, invoices and other papers,
including without limitation all tapes, cards, computer runs and other papers and documents in the
possession or under the control of such Credit Party or any computer bureau or service company from
time to time acting for such Credit Party.

          “Goods” means all “goods” as defined in the Code, now owned or hereafter acquired by
any Credit Party, wherever located, including embedded software to the extent included in “goods”
as defined in the Code, manufactured homes, standing timber that is cut and removed for sale and
unborn young of animals.

          “Governmental Authority” means any nation or government, any state, province,
territory or other political subdivision thereof, and any agency, department or other entity
exercising executive, legislative, judicial, regulatory or administrative functions of or
pertaining to government.

          “Guaranteed Indebtedness” means, as to any Person, any obligation of such Person
guaranteeing, providing comfort or otherwise supporting any Indebtedness, lease, dividend, or other
obligation (“primary obligation”) of any other Person (the “primary obligor”)

A-16

 

in any manner, including any obligation or arrangement of such Person to (a) purchase or repurchase
any such primary obligation, (b) advance or supply funds (i) for the purchase or payment of any
such primary obligation or (ii) to maintain working capital or equity capital of the primary
obligor or otherwise to maintain the net worth or solvency or any balance sheet condition of the primary
obligor, (c) purchase property, securities or services primarily for the purpose of assuring the
owner of any such primary obligation of the ability of the primary obligor to make payment of such
primary obligation, (d) protect the beneficiary of such arrangement from loss (other than product
warranties given in the ordinary course of business) or (e) indemnify the owner of such primary
obligation against loss in respect thereof. The amount of any Guaranteed Indebtedness at any time
shall be deemed to be an amount equal to the lesser at such time of (x) the stated or determinable
amount of the primary obligation in respect of which such Guaranteed Indebtedness is incurred and
(y) the maximum amount for which such Person may be liable pursuant to the terms of the instrument
embodying such Guaranteed Indebtedness, or, if not stated or determinable, the maximum reasonably
anticipated liability (assuming full performance) in respect thereof.

          “Guaranties” means, collectively, the Holdings Guaranty, each Subsidiary Guaranty and
any other guaranty executed by any Guarantor in favor of the Applicable Agent and Lenders in
respect of the Obligations.

          “Guarantors” means Holdings and each domestic or Canadian Subsidiary of any Borrower
(excluding WESCO Receivables), including, without limitation, WDC Holding, and each other Person,
if any, that executes a guaranty or other similar agreement in favor of Agent, for itself and the
ratable benefit of Agents and Lenders, or in favor of Canadian Agent, for itself and the ratable
benefit of Canadian Lenders in connection with the transactions contemplated by the Agreement and
the other Loan Documents.

          “Hazardous Material” means any substance, material or waste that is regulated by, or
forms the basis of liability now or hereafter under, any Environmental Laws, including any material
or substance that is (a) defined as a “solid waste,” “hazardous waste,” “hazardous material,”
“hazardous substance,” “dangerous good,” “extremely hazardous waste,” “restricted hazardous waste,”
“pollutant,” “contaminant,” “hazardous constituent,” “special waste,” “toxic substance” or other
similar term or phrase under any Environmental Laws, or (b) petroleum or any fraction or by-product
thereof, asbestos, polychlorinated biphenyls (PCB’s), or any radioactive substance.

          “Hedging Agreements” means any non-speculative interest rate protection agreements,
foreign currency exchange agreements, commodity futures agreements or other non-speculative
interest or exchange rate hedging agreements entered into in the ordinary course of business.

          “Herning” means Herning Enterprises, Inc.

          “Holdings” has the meaning ascribed thereto in the recitals to the Agreement.

          “Holdings Guaranty” means the Second Amended and Restated guaranty dated as of the
Closing Date executed by Holdings in favor of Agent and Lenders.

A-17

 

          “Holdings Pledge Agreement” means the Second Amended and Restated Pledge Agreement
dated as of the Closing Date executed by Holdings in favor of Agent, on behalf of itself and
Lenders, pledging all Stock of Borrowers and Holdings’ other Subsidiaries and all Intercompany
Notes owing to or held by it.

          “Indebtedness” means, with respect to any Person, without duplication (a) all
indebtedness of such Person for borrowed money or for the deferred purchase price of property
payment for which is deferred 6 months or more, but excluding obligations to trade creditors
incurred in the ordinary course of business that are unsecured and not overdue by more than 6
months unless being contested in good faith, (b) all reimbursement and other obligations with
respect to letters of credit, bankers’ acceptances and surety bonds, whether or not matured, (c)
all obligations evidenced by notes, bonds, debentures or similar instruments, (d) all indebtedness
created or arising under any conditional sale or other title retention agreement with respect to
property acquired by such Person (even though the rights and remedies of the seller or lender under
such agreement in the event of default are limited to repossession or sale of such property), (e)
all Capital Lease Obligations and the present value (discounted at the Index Rate as in effect on
the Closing Date) of future rental payments under all synthetic leases, (f) all obligations of such
Person under commodity purchase or option agreements or other commodity price hedging arrangements,
in each case whether contingent or matured, (g) all obligations of such Person under any foreign
exchange contract, currency swap agreement, interest rate swap, cap or collar agreement or other
similar agreement or arrangement designed to alter the risks of that Person arising from
fluctuations in currency values or interest rates, in each case whether contingent or matured, (h)
all Indebtedness referred to above secured by (or for which the holder of such Indebtedness has an
existing right, contingent or otherwise, to be secured by) any Lien upon or in property or other
assets (including accounts and contract rights) owned by such Person, even though such Person has
not assumed or become liable for the payment of such Indebtedness, and (i) the Obligations.

          “Indemnified Liabilities” has the meaning ascribed to it in Section 1.13.

          “Indemnified Person” has the meaning ascribed to it in Section 1.13.

          “Index Rate” means, for any day, (a) with respect to Obligations denominated in
Dollars, a floating rate equal to the higher of (i) the rate publicly quoted from time to time by
The Wall Street Journal as the “base rate on corporate loans posted by at least 75% of the
nation’s 30 largest banks” (or, if The Wall Street Journal ceases quoting a base rate of
the type described, the highest per annum rate of interest published by the Federal Reserve Board
in Federal Reserve statistical release H.15 (519) entitled “Selected Interest Rates” as the Bank
prime loan rate or its equivalent), and (ii) the Federal Funds Rate plus 50 basis points per annum.
Each change in any interest rate provided for in the Agreement based upon the Index Rate shall
take effect at the time of such change in the Index Rate and (b) with respect to Obligations
denominated in Canadian Dollars a floating rate equal to the greater of (i) the annual rate of
interest publicly quoted from time to time in the “Moneypage” section of The Wall Street
Journal as being the “Canadian prime rate” and (ii) the BA Rate in respect of a BA Period of
thirty (30) days commencing on the first Business Day of the calendar month in which such date
occurs, plus 1.00% per annum.

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          “Index Rate Loan” means a Loan or portion thereof bearing interest by reference to the
Index Rate.

          “Insolvency Law” means either of the Bankruptcy and Insolvency Act (Canada) and the
Companies’ Creditors Arrangement Act (Canada), each as now and hereafter in effect, any successors
to such statutes and any other applicable insolvency or other similar law of any Canadian
jurisdiction including, without limitation, any law of any Canadian federal or provincial
jurisdiction permitting a debtor to obtain a stay or a compromise of the claims of its creditors
against it.

          “Instruments” means all “instruments,” as such term is defined in the Code, now owned
or hereafter acquired by any Credit Party, wherever located, and, in any event, including all
certificated securities, all certificates of deposit, and all promissory notes and other evidences
of indebtedness, other than instruments that constitute, or are a part of a group of writings that
constitute, Chattel Paper.

          “Intellectual Property” means any and all Licenses, Patents, Copyrights, Trademarks,
Designs and the goodwill associated with such Trademarks.

          “Intercompany Notes” has the meaning ascribed to it in Section 6.3.

          “Intercreditor Agreement” means that certain Intercreditor Agreement, dated as of the
Original Closing Date, by and among Agent, WESCO Distribution, WESCO Receivables Corp., and the
providers (i.e., lenders) under the Receivables Purchase Agreement, which Intercreditor
Agreement shall be in form and substance satisfactory to the Agent.

          “Interest Expense” means, with respect to any Person for any fiscal period, interest
expense (whether cash or non-cash) of such Person determined in accordance with GAAP for the
relevant period ended on such date, including, without limitation, interest expense with respect to
any Funded Debt of such Person, interest expense for the relevant period that has been capitalized
on the balance sheet of such Person and interest equivalent expense associated with the Permitted
Receivables Financing.

          “Interest Payment Date” means (a) as to any Index Rate Loan, the first Business Day of
each month to occur while such Loan is outstanding, (b) as to any LIBOR Loan, the last day of the
applicable LIBOR Period; provided, that in the case of any LIBOR Period greater than three
months in duration, interest shall be payable at three month intervals and on the last day of such
LIBOR Period, and (c) as to any BA Rate Loan, the last day of the applicable BA Period; and
provided further that, in addition to the foregoing, each of (x) the date upon
which all of the Commitments have been terminated and the Loans have been paid in full and (y) the
Commitment Termination Date shall be deemed to be an “Interest Payment Date” with respect
to any interest that has then accrued under the Agreement.

          “Inventory” means all “inventory,” as such term is defined in the Code, now owned or
hereafter acquired by any Credit Party, wherever located, and in any event including inventory,
merchandise, goods and other personal property that are held by or on behalf of any Credit Party
for sale or lease or are furnished or are to be furnished under a contract of service,

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or that constitute raw materials, work in process, finished goods, returned goods, or materials or supplies
of any kind, nature or description used or consumed or to be used or consumed in such Credit
Party’s business or in the processing, production, packaging, promotion, delivery or shipping of
the same, including all supplies and embedded software.

          “Investment Property” means all “investment property” as such term is defined in the
Code now owned or hereafter acquired by any Credit Party, wherever located, including (i) all
securities, whether certificated or uncertificated, including stocks, bonds, interests in limited
liability companies, partnership interests, treasuries, certificates of deposit, and mutual fund
shares; (ii) all securities entitlements of any Credit Party, including the rights of any Credit
Party to any securities account and the financial assets held by a securities intermediary in such
securities account and any free credit balance or other money owing by any securities intermediary
with respect to that account; (iii) all securities accounts of any Credit Party; (iv) all commodity
contracts of any Credit Party; and (v) all commodity accounts held by any Credit Party.

          “IRC” means the Internal Revenue Code of 1986, as amended, and all regulations
promulgated thereunder.

          “IRS” means the Internal Revenue Service.

          “ITA” means the Income Tax Act (Canada) as the same may, from time to time, be in
effect.

          “June 2005 Closing Date” means June 17, 2005.

          “L/C Issuer” has the meaning ascribed to it in Annex B.

          “L/C Sublimit” means the US L/C Sublimit or the Canadian L/C Sublimit, as applicable.

          “Lehman Brothers” means Lehman Brothers Special Financing, Inc.

          “Lenders” means GE Capital, the other Lenders named on the signature pages of the
Agreement, and, if any such Lender shall decide to assign all or any portion of the Obligations,
such term shall include any assignee of such Lender.

          “Letter of Credit Fee” has the meaning ascribed to it in Annex B.

          “Letter of Credit Obligations” means all outstanding obligations incurred by Agent and
US Lenders and/or by Canadian Agent and Canadian Lenders at the request of Borrower Representative,
whether direct or indirect, contingent or otherwise, due or not due, in connection with the
issuance of Letters of Credit by Agent or by Canadian Agent or another L/C Issuer or the purchase
of a participation as set forth in Annex B with respect to any Letter of Credit. The
amount of such Letter of Credit Obligations shall equal the maximum amount that may be payable at
such time or at any time thereafter by Agent or Lenders (in connection with Letters of Credit
issued for the account of any US Borrower) or by Canadian Agent or Canadian

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Lenders (in connection with Letters of Credit issued for the account of any Canadian Borrower) thereupon or
pursuant thereto, and in respect of Letters of Credit issued for the account of any Canadian
Borrower, for purposes of computation of the Maximum Amount, such amount shall be based on the
Dollar Equivalent Amount of such Letter of Credit Obligations as of any date of determination.

          “Letter-of-Credit Rights” means letter-of-credit rights as such term is defined in the
Code, now owned or hereafter acquired by any Credit Party, including rights to payment or
performance under a letter of credit, whether or not such Credit Party, as beneficiary, has
demanded or is entitled to demand payment or performance.

          “Letters of Credit” means documentary or standby letters of credit issued for the
account of Borrower by any L/C Issuer, and bankers’ acceptances issued by Borrower, for which Agent
and Lenders have incurred Letter of Credit Obligations, including, without limitation, those issued
after the Original Closing Date and prior to the Closing Date and currently in existence.

          “Liberty” means Liberty Wire & Cable, Inc., a Delaware corporation.

          “LIBOR Business Day” means a Business Day on which banks in the City of London are
generally open for interbank or foreign exchange transactions.

          “LIBOR Loan” means a Loan or any portion thereof bearing interest by reference to the
LIBOR Rate.

          “LIBOR Period” means, with respect to any LIBOR Loan, each period commencing on a
LIBOR Business Day selected by Borrower Representative pursuant to the Agreement and ending seven
days or one, two, three or six months thereafter, as selected by Borrower Representatives
irrevocable notice to Agent as set forth in Section 1.5(e); provided, that the
foregoing provision relating to LIBOR Periods is subject to the following:

     (a) if any LIBOR Period would otherwise end on a day that is not a LIBOR Business Day,
such LIBOR Period shall be extended to the next succeeding LIBOR Business Day unless the
result of such extension would be to carry such LIBOR Period into another calendar month in
which event such LIBOR Period shall end on the immediately preceding LIBOR Business Day;

     (b) any LIBOR Period that would otherwise extend beyond the Commitment Termination Date
shall end 2 LIBOR Business Days prior to such date;

     (c) any LIBOR Period that begins on the last LIBOR Business Day of a calendar month (or
on a day for which there is no numerically corresponding day in the calendar month at the
end of such LIBOR Period) shall end on the last LIBOR Business Day of a calendar month;

     (d) in the case of any LIBOR Period ending seven days thereafter, all Lenders shall
have consented thereto; and

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     (e) Borrower Representative shall select LIBOR Periods so that there shall be no more
than 10 separate LIBOR Loans and BA Rate Loans, collectively in existence at any one time.

          “LIBOR Rate” means for each LIBOR Period, a rate of interest determined by Agent equal
to:

     (a) the offered rate for deposits in United States Dollars for the applicable LIBOR
Period that appears on Telerate Page 3750 as of 11:00 a.m. (London time), on the second full
LIBOR Business Day next preceding the first day of such LIBOR Period (unless such date is
not a Business Day, in which event the next succeeding Business Day will be used); divided
by

     (b) a number equal to 1.0 minus the aggregate (but without duplication) of the
rates (expressed as a decimal fraction) of reserve requirements in effect on the day that is
2 LIBOR Business Days prior to the beginning of such LIBOR Period (including basic,
supplemental, marginal and emergency reserves under any regulations of the Federal Reserve
Board or other Governmental Authority having jurisdiction with respect thereto, as now and
from time to time in effect) for Eurocurrency funding (currently referred to as
“Eurocurrency Liabilities” in Regulation D of the Federal Reserve Board that are required to
be maintained by a member bank of the Federal Reserve System.

     If such interest rates shall cease to be available from Telerate News Service, the
LIBOR Rate shall be determined from such financial reporting service or other information as
shall be mutually acceptable to Agent and Borrower Representative.

          “License” means any Copyright License, Patent License, Design License, Trademark
License or other license of rights or interests now held or hereafter acquired by any Credit Party.

          “Lien” means any mortgage or deed of trust, pledge, hypothecation, assignment, deposit
arrangement, lien, charge, claim, security interest, easement or encumbrance, or preference,
priority or other security agreement or preferential arrangement of any kind or nature whatsoever
(including any lease or title retention agreement, any financing lease having substantially the
same economic effect as any of the foregoing, and the filing of, or agreement to give, any
financing statement perfecting a security interest under the Code or comparable law of any
jurisdiction).

          “Litigation” has the meaning ascribed to it in Section 3.13.

          “Loan Account” has the meaning ascribed to it in Section 1.12.

          “Loan Documents” means the Agreement, the Notes, the Debentures, the Collateral
Documents, the Master Standby Agreement, the Master Documentary Agreement, the Intercreditor
Agreement, any intercreditor agreement entered into with Lehman Brothers or Bank of New York
relating to the respective Swap Agreements, and all other agreements, instruments, reaffirmations,
documents and certificates identified in the Closing Checklist executed and

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delivered to, or in favor of, Agent, Canadian Agent or any Lenders and including all other
pledges, powers of attorney, consents, assignments, contracts, notices, and all other written
matter whether heretofore, now or hereafter executed by or on behalf of any Credit Party, or any
employee of any Credit Party, and delivered to Agent, Canadian Agent or any Lender in connection
with the Existing Credit Agreement, the Agreement or the transactions contemplated thereby. Any
reference in the Agreement or any other Loan Document to a Loan Document shall include all
appendices, exhibits or schedules thereto, and all amendments, restatements, supplements or other
modifications thereto, and shall refer to the Agreement or such Loan Document as the same may be in
effect at any and all times such reference becomes operative.

          “Loans” means the Revolving Loan and the Swing Line Loan.

          “Lock Boxes” has the meaning ascribed to it in Annex C.

          “Margin Stock” has the meaning ascribed to it in Section 3.10.

          “Master Documentary Agreement” means, collectively, the Second Amended and Restated
Master Agreement for Documentary Letters of Credit dated as of the Closing Date between Borrower
Representative, as Applicant, and GE Capital, as Issuer and the Master Agreement for Documentary
Letters of Credit dated as of the Closing Date between Borrower Representative, as Applicant, and
GE Capital Canada, as Issuer.

          “Master Standby Agreement” means, collectively, the Second Amended and Restated Master
Agreement for Standby Letters of Credit dated as of the Closing Date between Borrower
Representative, as Applicant, and GE Capital, as Issuer; and the Master Agreement for Standby
Letters of Credit dated as of the Closing Date between Borrower Representative, as Applicant, and
GE Capital Canada, as Issuer.

          “Material Adverse Effect” means a material adverse effect on (a) the business, assets,
operations, prospects or financial or other condition of (i) the Borrowers taken as a whole, (ii)
WESCO DC GP and WESCO DC LP taken as a whole or (iii) the Credit Parties taken as a whole, (b)
Borrowers’ ability to pay any of the Loans or any of the other Obligations in accordance with the
terms of the Agreement, (c) the Collateral or either Agent’s Liens, on behalf of itself, the other
Agent, as applicable and Lenders, on the Collateral or the priority of such Liens, or (d) either
Agent’s or any Lender’s rights and remedies under the Agreement and the other Loan Documents.
Without limiting the generality of the foregoing, any event or occurrence adverse to one or more
Credit Parties which results or could reasonably be expected to result in costs and/or liabilities
in excess of the $15,000,000 shall constitute a Material Adverse Effect.

          “Maximum Amount” means, as of any date of determination, an amount equal to the
Revolving Loan Commitment of all Lenders as of that date, provided that for purposes of this
definition, the Canadian Revolving Loan Commitment shall be computed in the Dollar Equivalent
Amount thereof so that at no time shall the Maximum Amount exceed Four Hundred and Forty Million
Dollars ($440,000,000).

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          “Maximum Canadian Amount” means, as of any date of determination, the Maximum Amount
minus the Maximum US Amount.

          “Maximum US Amount” means $375,000,000.

          “Mortgage Lenders” means the SPEs and one or more mortgage lenders, including Bear
Stearns Commercial Mortgage, Inc., their respective successors and assigns, including any
securitization conduit or similar entity.

          “Multiemployer Plan” means a “multiemployer plan” as defined in Section 4001(a)(3) of
ERISA, and to which any Credit Party or ERISA Affiliate is making, is obligated to make or has made
or been obligated to make, contributions on behalf of participants who are or were employed by any
of them.

          “Negative Effect” has the meaning ascribed to it in Section 5.12.

          “Net Orderly Liquidation Value” shall have the meaning ascribed to the term “Net
Liquidation Value” (Net Recovery, OLV) in the appraisal report dated February, 2002 prepared by
Hilco Appraisal Services LLC, as the same may updated at Agent’s request from time to time by Hilco
Appraisal Services LLC, or such more recent appraisal report from such other firm as Agent may
select.

          “Net Worth” means, with respect to any Person as of any date of determination, the
book value of the assets of such Person, minus the sum of (a) reserves applicable thereto,
and (b) all of such Person’s liabilities on a consolidated basis (including accrued and deferred
income taxes), all as determined in accordance with GAAP.

          “New Debentures” means the debentures executed and issued to Canadian Agent, on behalf
of Canadian Agent and Canadian Lenders, by one or more Credit Parties under the Deeds of Hypothec.

          “Non-Funding Lender” has the meaning ascribed to it in Section 9.9(a)(ii).

          “Notes” means, collectively, the Revolving Notes and the Swing Line Note.

          “Notice of Conversion/Continuation” has the meaning ascribed to it in Section
1.5(e).

          “Notice of Revolving Credit Advance” has the meaning ascribed to it in Section
1.1(a).

          “Obligations” means all loans, advances, debts, liabilities and obligations, for the
performance of covenants, tasks or duties or for payment of monetary amounts (whether or not such
performance is then required or contingent, or such amounts are liquidated or determinable) owing
by any Credit Party to Agent, Canadian Agent or any Lender, and all covenants and duties regarding
such amounts, of any kind or nature, present or future, whether or not evidenced by any note,
agreement or other instrument, arising under the Agreement, any of the other Loan
Documents or any Hedging Agreement provided by a Lender or any wholly-owned Affiliate of a

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Lender. This term includes all principal, interest (including all interest that accrues after the
commencement of any case or proceeding by or against any Credit Party in bankruptcy, whether or not
allowed in such case or proceeding), Fees, hedging obligations under any Hedging Agreements
provided by any Lender or any wholly-owned Affiliate of a Lender, Charges, expenses, attorneys’
fees and any other sum chargeable to any Credit Party under the Agreement or any of the other Loan
Documents.

          “Original Closing Date” means March 19, 2002.

          “Overadvance” has the meaning ascribed to it in Section 1.1(a)(iii).

          “Patent License” means rights under any written agreement now owned or hereafter
acquired by any Credit Party granting any right with respect to any invention on which a Patent is
in existence.

          “Patent Security Agreement” means the Second Amended and Restated Patent Security
Agreement made in favor of Agent, on behalf of itself and Lenders, and in favor of Canadian Agent,
on behalf of itself and Canadian Lenders by each applicable Credit Party.

          “Patents” means all of the following in which any Credit Party now holds or hereafter
acquires any interest: (a) all letters patent of the United States or any other country, all
registrations and recordings thereof, and all applications for letters patent of the United States
or of any other country, including registrations, recordings and applications in the United States
Patent and Trademark Office or in any similar office or agency of the United States, any State or
any other country, and (b) all reissues, continuations, continuations-in-part or extensions
thereof.

          “PBGC” means the Pension Benefit Guaranty Corporation.

          “Pension Plan” means a Plan described in Section 3(2) of ERISA.

          “Permitted Encumbrances” means the following encumbrances: (a) Liens for taxes or
assessments or other governmental Charges not yet due and payable or which are being contested in
accordance with Section 5.2(b); (b) pledges or deposits of money securing statutory
obligations under workmen’s compensation, unemployment insurance, social security or public
liability laws or similar legislation (excluding Liens under ERISA); (c) pledges or deposits of
money securing bids, tenders, contracts (other than contracts for the payment of money) or leases
to which any Credit Party is a party as lessee made in the ordinary course of business; (d)
inchoate and unperfected workers’, mechanics’ or similar liens arising in the ordinary course of
business, so long as such Liens attach only to Equipment, Fixtures and/or Real Estate; (e)
carriers’, warehousemen’s, suppliers’ or other similar possessory liens arising in the ordinary
course of business and securing liabilities in an outstanding aggregate amount not in excess of
$250,000 at any time; (f) deposits securing, or in lieu of, surety, appeal or customs bonds in
proceedings to which any Credit Party is a party; (g) any attachment or judgment lien not
constituting an Event of Default under Section 8.1(j); (h) zoning restrictions, easements,
licenses, or other restrictions on the use of any Real Estate or other minor irregularities in
title (including leasehold title)
thereto, so long as the same do not materially impair the use, value, or marketability of such
Real Estate; (i) presently existing or hereafter created Liens in favor of

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Agent, on behalf of
itself and Lenders and in favor of Canadian Agent, on behalf of itself and Canadian Lenders; (j)
Liens expressly permitted under clauses (b) and (c) of Section 6.7 of the Agreement
and (k) to the extent not included in clauses (a), (d) and (e) of this definition, Prior
Claims that are unregistered and secure amounts that are not yet due and payable.

          “Permitted Receivables Financing” means a transaction entered into pursuant to and in
accordance with the Receivables Sale Agreement and the Receivables Purchase Agreement and the other
agreements, instruments and documents executed in connection therewith.

          “Permitted Sale-Leaseback” means a sale-leaseback transaction or sale-leaseback
transactions, completed prior to the June 2005 Closing Date, pursuant to which WESCO Distribution,
CDW, WESCO Equity, or Herning sold, by way of contribution, real property to an SPE or SPEs and
leased such real property back, in order to enable such SPE or SPEs to obtain mortgage financing
from a Mortgage Lender, as previously disclosed to and approved by Agent.

          “Person” means any individual, sole proprietorship, partnership, joint venture, trust,
unincorporated organization, association, corporation, limited liability company, institution,
public benefit corporation, other entity or government (whether federal, state, county, city,
municipal, local, foreign, or otherwise, including any instrumentality, division, agency, body or
department thereof).

          “Plan” means, at any time, an “employee benefit plan,” as defined in Section 3(3) of
ERISA, that any Credit Party or ERISA Affiliate maintains, contributes to or has an obligation to
contribute to on behalf of participants who are or were employed by any Credit Party.

          “Pledge Agreements” means the Borrowers Pledge Agreement, the Holdings Pledge
Agreement, and any other pledge agreement entered into on or after the Original Closing Date by any
Credit Party (as required by the Agreement or any other Loan Document).

          “PPSA” means the Personal Property Security Act in force in the Province of Ontario;
provided, that in the event that, by reason of mandatory provisions of law, the validity,
perfection and effect of perfection or non-perfection of a security interest or other applicable
Lien is governed by other personal property security laws, the term “PPSA” means such other
personal property security laws.

          “Prior Claims” means all Liens arising under applicable Canadian federal or provincial
law (in contrast with Liens voluntarily granted) which rank or are capable of ranking prior to or
pari passu with Agent’s security interests (or similar Liens under applicable Canadian federal or
provincial laws), against all or part of the Collateral, including for amounts owing for employee
source deductions, goods and services taxes, sales taxes, Quebec corporate income taxes, municipal
taxes, workers’ compensation, pension fund obligations, Canadian withholding tax deducted from
interest, fees and other consideration paid in respect of credit made available or agreed to be
made available to WESCO DC LP and not yet remitted to the Canada Customs and Revenue Agency or
other applicable governmental authorities, and overdue rents; it being agreed
that Prior Claims shall not include any of the foregoing arising under any applicable law
other than Canadian federal or provincial law.

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          “Proceeds” means “proceeds,” as such term is defined in the Code or the PPSA,
including (a) any and all proceeds of any insurance, indemnity, warranty or guaranty payable to any
Credit Party from time to time with respect to any of the Collateral, (b) any and all payments (in
any form whatsoever) made or due and payable to any Credit Party from time to time in connection
with any requisition, confiscation, condemnation, seizure or forfeiture of all or any part of the
Collateral by any Governmental Authority (or any Person acting under color of governmental
authority), (c) any claim of any Credit Party against third parties (i) for past, present or future
infringement of any Patent or Patent License, or (ii) for past, present or future infringement or
dilution of any Copyright, Copyright License, Trademark or Trademark License, or for injury to the
goodwill associated with any Trademark or Trademark License, (d) any recoveries by any Credit Party
against third parties with respect to any litigation or dispute concerning any of the Collateral
including claims arising out of the loss or nonconformity of, interference with the use of, defects
in, or infringement of rights in, or damage to, Collateral, (e) all amounts collected on, or
distributed on account of, other Collateral, including dividends, interest, distributions and
Instruments with respect to Investment Property and pledged Stock, and (f) any and all other
amounts, rights to payment or other property acquired upon the sale, lease, license, exchange or
other disposition of Collateral and all rights arising out of Collateral.

          “Projections” means Holdings’ and Borrower’s forecasted consolidated and
consolidating: (a) balance sheets; (b) profit and loss statements; (c) cash flow statements; and
(d) capitalization statements, all prepared on a Subsidiary by Subsidiary or division-by-division
basis, if applicable, and otherwise consistent with the historical Financial Statements of Holdings
and Borrower, together with appropriate supporting details and a statement of underlying
assumptions.

          “Promissory Note” means the unsecured promissory note in the amount of the aggregate
purchase price paid by WESCO Distribution to WESCO Equity in connection with the sale by WESCO
Equity of all its Intellectual Property to WESCO Distribution.

          “Pro Rata Share” means with respect to all matters relating to any Lender (a) with
respect to the Revolving Loan, the percentage obtained by dividing (i) the Revolving Loan
Commitment of that Lender by (ii) the aggregate Revolving Loan Commitments of all Lenders, (b) with
respect to all Loans, the percentage obtained by dividing (i) the aggregate Commitments of that
Lender by (ii) the aggregate Commitments of all Lenders, and (c) with respect to all Loans on and
after the Commitment Termination Date, the percentage obtained by dividing (i) the aggregate
outstanding principal balance of the Loans held by that Lender, by (ii) the outstanding principal
balance of the Loans held by all Lenders. It is understood that the determination of any Lender’s
Pro Rata Share pursuant to this Agreement as it relates to Commitments or Loans to US Borrowers
shall only include US Borrowers and as it relates to Commitments or Loans to Canadian Borrowers
shall only include Canadian Borrowers.

          “Qualified Plan” means a Pension Plan that is intended to be tax-qualified under
Section 401(a) of the IRC.

          “Qualified Assignee” means (a) any Lender, any Affiliate of any Lender and, with
respect to any Lender that is an investment fund that invests in commercial loans, any other
investment fund that invests in commercial loans and that is managed or advised by the same

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investment advisor as such Lender or by an Affiliate of such investment advisor, and (b) any
commercial bank, savings and loan association or savings bank or any other entity which is an
“accredited investor” (as defined in Regulation D under the Securities Act) which extends credit or
buys loans as one of its businesses, including insurance companies, mutual funds, lease financing
companies and commercial finance companies, in each case, which has a rating of BBB or higher from
S&P and a rating of Baa2 or higher from Moody’s at the date that it becomes a Lender and which,
through its applicable lending office, is capable of lending to Borrowers without the imposition of
any withholding or similar taxes; provided that no Person determined by Agent to be acting in the
capacity of a vulture fund or distressed debt purchaser shall be a Qualified Assignee and no Person
or Affiliate of such Person (other than a Person that is already a Lender) holding Subordinated
Debt or Stock issued by any Credit Party shall be a Qualified Assignee.

          “Ratable Share” has the meaning ascribed to it in Section 1.1(b).

          “Real Estate” has the meaning ascribed to it in Section 3.6.

          “Receivables Purchase Agreement” means that certain Second Amended and Restated
Receivables Purchase Agreement, dated as of September 2, 2003, among WESCO Receivables Corp., WESCO
Distribution, the purchasers party thereto and the lenders named therein, as amended to the date of
this Agreement, and as it may be further amended, restated, modified or supplemented, so long as
the Intercreditor Agreement remains in full force and effect.

          “Receivables Sale Agreement” means that certain Purchase and Sale Agreement, dated as
of September 2, 2003, among WESCO Distribution, the originator named therein and WESCO Receivables
Corp., as amended to the date of this Agreement and as it may be further amended, restated,
modified or supplemented, so long as the Intercreditor Agreement remains in full force and effect.

          “Refunded Swing Line Loan” has the meaning ascribed to it in Section
1.1(b)(iii).

          “Related Transactions” means the initial borrowing under the Revolving Loan on the
Closing Date, the payment of all fees, costs and expenses associated with all of the foregoing and
the execution and delivery of all of the Related Transactions Documents.

          “Related Transactions Documents” means the Loan Documents and the Intercreditor
Agreement, and all other agreements, instruments, certificates or documents executed in connection
with the Related Transactions.

          “Release” means any release, threatened release, spill, emission, leaking, pumping,
pouring, emitting, emptying, escape, injection, deposit, disposal, discharge, dispersal, dumping,
leaching or migration of Hazardous Material in the indoor or outdoor environment, including the
movement of Hazardous Material through or in the air, soil, surface water, ground water or
property.

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          “Requisite Lenders” means Lenders having (a) more than 50% of the Commitments of all
Lenders, or (b) if the Commitments have been terminated, more than 50% of the aggregate outstanding
amount of the Loans.

          “Reserves” means, with respect to the Borrowing Base (a) reserves established by Agent
from time to time against Eligible Inventory pursuant to Section 5.9, (b) reserves
established pursuant to Section 5.4(c), and (c) such other reserves against Eligible
Accounts, Eligible Securitization Receivables, Eligible Inventory or Borrowing Availability that
Agent may, in its reasonable credit judgment, establish from time to time. Without limiting the
generality of the foregoing, Reserves established to ensure the payment of accrued Interest
Expenses, Prior Claims and/or Indebtedness shall be deemed to be a reasonable exercise of Agent’s
credit judgment.

          “Restricted Payment” means, with respect to any Credit Party (a) the declaration or
payment of any dividend or the incurrence of any liability to make any other payment or
distribution of cash or other property or assets in respect of Stock; (b) any payment on account of
the purchase, redemption, defeasance, sinking fund or other retirement of such Credit Party’s Stock
or any other payment or distribution made in respect thereof, either directly or indirectly; (c)
any payment or prepayment of principal of, premium, if any, or interest, fees or other charges on
or with respect to, and any redemption, purchase, repurchase, retirement, defeasance, sinking fund
or similar payment and any claim for rescission with respect to, any Subordinated Debt; (d) any
payment made to redeem, purchase, repurchase or retire, or to obtain the surrender of, any
outstanding warrants, options or other rights to acquire Stock of such Credit Party now or
hereafter outstanding; (e) any payment of a claim for the rescission of the purchase or sale of, or
for material damages arising from the purchase or sale of, any shares of such Credit Party’s Stock
or of a claim for reimbursement, indemnification or contribution arising out of or related to any
such claim for damages or rescission; (f) any payment, loan, contribution, or other transfer of
funds or other property to any Stockholder of such Credit Party other than payment of compensation
in the ordinary course of business to Stockholders who are employees of such Credit Party; and (g)
any payment of management fees (or other fees of a similar nature) by such Credit Party to any
Stockholder of such Credit Party or its Affiliates.

          “Retiree Welfare Plan” means, at any time, a Welfare Plan that provides for continuing
coverage or benefits for any participant or any beneficiary of a participant after such
participant’s termination of employment, other than continuation coverage provided pursuant to
Section 4980B of the IRC and at the sole expense of the participant or the beneficiary of the
participant.

          “Revolving Credit Advance” has the meaning ascribed to it in Section
1.1(a)(i).

          “Revolving Loan” means, at any time, the sum of (i) the aggregate amount of US
Revolving Credit Advances and Canadian Revolving Credit Advances based on the Equivalent Amount
thereof as of any date of determination plus (ii) the aggregate US Letter of Credit
Obligations incurred on behalf of US Borrowers and Canadian Letter of Credit Obligations
incurred on behalf of Canadian Borrowers based on the Dollar Equivalent Amount thereof as of any
date of determination, and in respect of US Borrowers means the aggregate US Revolving Credit
Advances and US Letter of Credit Obligations, and in respect of Canadian Borrowers

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means the aggregate Canadian Revolving Credit Advances and Canadian Letter of Credit Obligations. Unless the
context otherwise requires, references to the outstanding principal balance of the Revolving Loan
shall include the outstanding balance of Letter of Credit Obligations.

          “Revolving Loan Commitment” means (a) as to any Lender, the aggregate commitment of
such Lender to make Revolving Credit Advances or incur Letter of Credit Obligations as set forth on
Annex J to the Agreement or in the most recent Assignment Agreement executed by such Lender
and (b) as to all Lenders, the aggregate commitment of all Lenders to make Revolving Credit
Advances or incur Letter of Credit Obligations, which aggregate commitment shall be Four Hundred
and Forty Million Dollars ($440,000,000) on the Closing Date, as such amount may be adjusted, if at
all, from time to time in accordance with the Agreement.

          “Revolving Note” has the meaning ascribed to it in Section 1.1(a)(ii).

          “Secured Obligations” shall mean, collectively, the Obligations and obligations of
Borrowers to any Lender under Hedging Agreements expressly permitted under the terms of the
Agreement, including, without limitation, Section 6.3(a)(xiv).

          “Securitization Additional Availability” means (A) up to 85% of the book value of
Eligible Securitization Receivables less (B) the greater of (i) the amount of credit
extended and (ii) the amount available to be extended by the financial institutions which are the
providers (i.e., the lenders) to WESCO Receivables under the Receivables Purchase Agreement
based upon the Eligible Securitization Receivables; provided, that, notwithstanding
any of the foregoing, in no event shall Securitization Additional Availability exceed the lesser of
(a) $50,000,000 and (b) fifteen percent (15%) of total Borrowing Availability.

          “Security Agreement” means, collectively, the Second Amended and Restated Security
Agreement dated as of the Closing Date, entered into by and among Agent, on behalf of itself and
Lenders, and each domestic Credit Party that is a signatory thereto and the Second Amended and
Restated Security Agreement, dated as of the Closing Date, entered into by and among Canadian
Agent, on behalf of itself and Canadian Lenders, and each Canadian Credit Party that is a signatory
thereto.

          “Software” means all “software” as such term is defined in the Code, now owned or
hereafter acquired by any Credit Party, other than software embedded in any category of goods,
including all computer programs and all supporting information provided in connection with a
transaction related to any program.

          “Solvent” means, (1) with respect to any Person, other than with respect to Canada, a
Person subject to Insolvency Law, on a particular date, that on such date (a) the fair
value of the property of such Person is greater than the total amount of liabilities,
including contingent liabilities, of such Person; (b) the present fair salable value of the assets
of such Person is not less than the amount that will be required to pay the probable liability of
such Person on its debts as they become absolute and matured; (c) such Person does not intend to,
and does not believe that it will, incur debts or liabilities beyond such Person’s ability to pay
as such

A-30

 

debts and liabilities mature; and (d) such Person is not engaged in a business or
transaction, and is not about to engage in a business or transaction, for which such Person’s
property would constitute an unreasonably small capital. The amount of contingent liabilities
(such as litigation, guaranties and pension plan liabilities) at any time shall be computed as the
amount that, in light of all the facts and circumstances existing at the time, represents the
amount that can be reasonably be expected to become an actual or matured liability and (2) with
respect to Canada, any Person that is subject to Insolvency Law on a particular date, that on such
date (a) the property of such Person is, at fair valuation, sufficient, or if disposed of at a
fairly conducted sale under legal process, sufficient to enable payment of all its obligations, due
and accruing due, (b) such Person is able, in all circumstances, to meet its obligations as they
generally become due; and (c) such Person has not ceased paying its current obligations in the
ordinary course of business as they generally become due.

          “SPE” means any direct or indirect special purpose entity Subsidiary formed by
Borrower for the purpose of (i) selling by means of a contribution, certain real property to the
SPEs and leasing back such real property and (ii) allowing such SPEs to contemporaneously engage in
mortgage financings permitted by Section 6.3(a)(x).

          “Stock” means all shares, options, warrants, general or limited partnership interests,
membership interests or other equivalents (regardless of how designated) of or in a corporation,
partnership, limited liability company or equivalent entity whether voting or nonvoting, including
common stock, preferred stock or any other “equity security” (as such term is defined in Rule
3a11-1 of the General Rules and Regulations promulgated by the Securities and Exchange Commission
under the Securities Exchange Act of 1934).

          “Stockholder” means, with respect to any Person, each holder of Stock of such Person.

          “Subordinated Debt” means the Indebtedness issued pursuant to Sections
6.3(a)(xxii), (xxiii) and (xxiv) and any other Indebtedness of any Credit Party
subordinated to the Obligations in a manner and form satisfactory to Agent and Lenders in their
sole discretion, as to right and time of payment and as to any other rights and remedies
thereunder.

          “Subsidiary” means, with respect to any Person, (a) any corporation of which an
aggregate of more than 50% of the outstanding Stock having ordinary voting power to elect a
majority of the board of directors of such corporation (irrespective of whether, at the time, Stock
of any other class or classes of such corporation shall have or might have voting power by reason
of the happening of any contingency) is at the time, directly or indirectly, owned legally or
beneficially by such Person or one or more Subsidiaries of such Person, or with respect to which
any such Person has the right to vote or designate the vote of 50% or more of such Stock whether by
proxy, agreement, operation of law or otherwise, and (b) any partnership or limited
liability company in which such Person and/or one or more Subsidiaries of such Person shall
have an interest (whether in the form of voting or participation in profits or capital
contribution) of more than 50% or of which any such Person is a general partner or may exercise the
powers of a general partner. Unless the context otherwise requires, each reference to a Subsidiary
shall be a reference to a Subsidiary of the Borrower.

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          “Subsidiary Guaranty” means the Second Amended and Restated Subsidiary Guaranty, dated
as of the Closing Date, executed by WESCO Finance and each domestic Subsidiary of the Borrowers
party thereto (which shall exclude Receivables and any SPE’s) in favor of Agent, on behalf of
itself and Lenders and the Second Amended and Restated Subsidiary Guaranty, dated as of the Closing
Date, executed by each Canadian Subsidiary of any Borrowers party thereto in favor of Canadian
Agent, on behalf of itself and Canadian Lenders.

          “Supermajority Lenders” means Lenders having (a) 75% or more of the Revolving Loan
Commitments of all Lenders, or (b) if the Revolving Loan Commitments have been terminated, 75% or
more of the aggregate outstanding amount of the Revolving Loan (with the Swing Line Loan being
attributed to the Lender making such Loan) and Letter of Credit Obligations.

          “Supporting Obligations” means all supporting obligations as such term is defined in
the Code, including letters of credit and guaranties issued in support of Accounts, Chattel Paper,
Documents, General Intangibles, Instruments, or Investment Property.

          “Swap Agreements” means that certain ISDA Master Agreement (Multicurrency — Cross
Border) with Lehman Brothers, and all confirmations and other documents executed in connection
therewith, and that certain ISDA Master Agreement with Goldman, Sachs & Co., and all confirmations
and other documents executed in connection therewith.

          “Swing Line Advance” has the meaning ascribed to it in Section 1.1(b)(i).

          “Swing Line Availability” has the meaning ascribed to it in Section 1.1(b)(i).

          “Swing Line Commitment” means, as to the applicable Swing Line Lender, the commitment
of the applicable Swing Line Lender to make Swing Line Advances as set forth on Annex J to
the Agreement, which commitment constitutes a subfacility of the Revolving Loan Commitment of the
applicable Swing Line Lender.

          “Swing Line Lender” means GE Capital in respect of the US Borrowers and means GE
Capital Canada in respect of the Canadian Borrowers.

          “Swing Line Loan” means, as the context may require, at any time, the aggregate amount
of Swing Line Advances outstanding to any Borrower or to all Borrowers, and in respect of US
Borrowers, means the aggregate US Swing Line Advances, and in respect of the Canadian Borrowers,
means the aggregate Canadian Swing Line Advances based on the Dollar Equivalent Amount thereof as
of any date of determination.

          “Swing Line Note” has the meaning ascribed to it in Section 1.1(b)(ii).

          “Taxes” means taxes, levies, imposts, deductions, Charges or withholdings, and all
liabilities with respect thereto, excluding taxes imposed on or measured by the net income or
capital of the Agent or a Lender by the jurisdictions under the laws of which Agent and Lenders are
organized or conduct business or any political subdivision thereof.

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          “Termination Date” means the date on which (a) the Loans have been indefeasibly repaid
in full, (b) all other Obligations under the Agreement and the other Loan Documents have been
completely discharged, (c) all Letter of Credit Obligations have been cash collateralized,
cancelled or backed by standby letters of credit in accordance with Annex B, and (d) none
of the Borrowers shall have any further right to borrow any monies under the Agreement.

          “Title IV Plan” means a Pension Plan (other than a Multiemployer Plan), that is
covered by Title IV of ERISA, and that any Credit Party or ERISA Affiliate maintains, contributes
to or has an obligation to contribute to on behalf of participants who are or were employed by any
of them.

          “Trademark Security Agreement” means the Second Amended and Restated Trademark
Security Agreement made in favor of Agent, on behalf of Lenders, and in favor of Canadian Agent on
behalf of Canadian Lenders by each applicable Credit Party.

          “Trademark License” means rights under any written agreement now owned or hereafter
acquired by any Credit Party granting any right to use any Trademark.

          “Trademarks” means all of the following now owned or hereafter adopted or acquired by
any Credit Party: (a) all trademarks, trade names, corporate names, business names, trade styles,
service marks, logos, other source or business identifiers, prints and labels on which any of the
foregoing have appeared or appear, designs and general intangibles of like nature (whether
registered or unregistered), all registrations and recordings thereof, and all applications in
connection therewith, including registrations, recordings and applications in the United States
Patent and Trademark Office or in any similar office or agency of the United States, any state or
territory thereof, or any other country or any political subdivision thereof; (b) all reissues,
extensions or renewals thereof; and (c) all goodwill associated with or symbolized by any of the
foregoing.

          “Unfunded Pension Liability” means, at any time, the aggregate amount, if any, of the
sum of (a) the amount by which the present value of all accrued benefits under each Title IV Plan
exceeds the fair market value of all assets of such Title IV Plan allocable to such benefits in
accordance with Title IV of ERISA, all determined as of the most recent valuation date for each
such Title IV Plan using the actuarial assumptions for funding purposes in effect under such Title
IV Plan, and (b) for a period of 5 years following a transaction which might reasonably be expected
to be covered by Section 4069 of ERISA, the liabilities (whether or not accrued) that could be
avoided by any Credit Party or any ERISA Affiliate as a result of such transaction.

          “Uniform Commercial Code jurisdiction” means any jurisdiction that had adopted all or
substantially all of Article 9 as contained in the 2000 Official Text of the Uniform Commercial
Code, as recommended by the National Conference of Commissioners on Uniform
State Laws and the American Law Institute, together with any subsequent amendments or
modifications to the Official Text.

          “US Borrowing Availability” means as of any date of determination as to all US
Borrowers, the lesser of (a) the Maximum US Amount and (b) the US Borrowing Base, in each

A-33

 

case, less the sum of the aggregate US Revolving Loan and US Swing Line Advances then outstanding to US
Borrowers.

          “US Borrowing Base” means, as of any date of determination by Agent, from time to
time, an amount equal to the sum at such time of:

     (a) 85% of the Eligible Accounts of the CSC Borrowers until such time, and only until
such time, as the CSC Borrowers’ accounts receivable are qualified and sold under the
securitization governed by the Receivables Sale Agreement and the Receivables Purchase
Agreement; provided, however, that in no event shall the portion of the US
Borrowing Base attributable to the CSC Borrowers’ Eligible Accounts exceed $100,000,000; and

     (b) the lesser of:

          (i) up to 65% of the book value of US Borrowers’ then Eligible Inventory valued at the
lower of cost (determined on a first-in, first-out basis) or market; or

          (ii) up to 85% of the appraised then Net Orderly Liquidation Value of US Borrowers’
Eligible Inventory; and

     (c) Securitization Additional Availability,

in each case, less any Reserves established by Agent at such time.

          “US Collection Account” means that certain account of US Agent, account number
502-328-54 in the name of US Agent at Deutsche Bank Trust Company Americas in New York, New York
ABA No. 021 001 033, or such other account as may be specified in writing by US Agent as the
“Collection Account-US.”

          “US Credit Party” means any Credit Party organized or existing pursuant to the laws of
the United States or any state or political subdivision thereof.

          “US Facilities” means the US Revolving Loans, US Revolving Loan Commitment, US Swing
Line Advances and US Letter of Credit Obligations.

          “US L/C Sublimit” has the meaning ascribed thereto in Annex B.

          “US Letter of Credit Obligations” has the meaning ascribed thereto in Section
1.2.

          “US Letters of Credit” means Letters of Credit issued for the account of any US
Borrower.

          “US Lenders” means GE Capital, in its individual capacity, each Person named on the
signature pages of the Agreement as a US Lender, and, if any such US Lender shall decide to assign
all or any portion of the Obligations, such term shall include any assignee of such Lender.

A-34

 

          “US Loan Account” has the meaning ascribed thereto in Section 1.12.

          “US Loans” means the US Revolving Loan and the US Swing Line Advances.

          “US Obligations” means Obligations with respect to the US Facilities.

          “US Revolving Credit Advances” means Revolving Credit Advances outstanding to US
Borrowers.

          “US Revolving Loan” means at any time, the aggregate amount of US Revolving Credit
Advances and US Letter of Credit Obligation outstanding to US Borrowers.

          “US Revolving Loan Commitment” means (a) as to any Lender, the aggregate commitment of
such Lender to make US Revolving Credit Advances or incur US Letter of Credit Obligations as set
forth on Annex J to the Agreement or in the most recent Assignment Agreement executed by
such Lender and (b) as to all US Lenders, the aggregate commitment of all US Lenders to make US
Revolving Credit Advances or incur US Letter of Credit Obligations, which aggregate commitment
shall be Three Hundred and Seventy Five Million Dollars ($375,000,000) on the Closing Date, as such
amount may be adjusted, if at all, from time to time in accordance with the Agreement.

          “US Swing Line Advances” has the meaning ascribed thereto in Section 1.1(b).

          “WDC Holding” means WDC Holding, Inc., a Delaware corporation.

          “Welfare Plan” means a Plan described in Section 3(i) of ERISA.

          “WESCO Canada” means WESCO Distribution Canada Co., a Nova Scotia unlimited liability
company.

          “WESCO DC GP” means WESCO Distribution Canada GP Inc., a Nova Scotia limited company.

          “WESCO DC LP” means WESCO Distribution Canada LP, an Ontario limited partnership.

          “WESCO Mexico” means WESCO Distribution de Mexico, S.A. De C.V. (Mexico), a
corporation formed under the laws of Mexico.

          “WESCO Nevada” shall mean WESCO Nevada, Ltd., a wholly-owned, indirect Subsidiary of
Borrower incorporated under the laws of the state of Nevada.

          “WESCO Nigeria” means WESCO Nigeria, Inc., a Delaware corporation.

          “WESCO Receivables” means WESCO Receivables Corp., a Delaware corporation.

          “WESCO Voltage” means WESCO Voltage, Inc., a Delaware corporation.

A-35

 

          “WESCO Voltage Note” means that certain unsecured promissory note not to exceed
$360,000,000 in the aggregate issued by WESCO Canada to WDC Holding in connection with the CSC
Acquisition.

          Rules of construction with respect to accounting terms used in the Agreement or the other Loan
Documents shall be as set forth in Annex G. All other undefined terms contained in any of
the Loan Documents shall, unless the context indicates otherwise, have the meanings provided for by
the Code as in effect in the State of New York to the extent the same are used or defined therein.
Unless otherwise specified, references in the Agreement or any of the Appendices to a Section,
subsection or clause refer to such Section, subsection or clause as contained in the Agreement.
The words “herein,” “hereof” and “hereunder” and other words of similar import refer to the
Agreement as a whole, including all Annexes, Exhibits and Schedules, as the same may from time to
time be amended, restated, modified or supplemented, and not to any particular section, subsection
or clause contained in the Agreement or any such Annex, Exhibit or Schedule.

          Wherever from the context it appears appropriate, each term stated in either the singular or
plural shall include the singular and the plural, and pronouns stated in the masculine, feminine or
neuter gender shall include the masculine, feminine and neuter genders. The words “including”,
“includes” and “include” shall be deemed to be followed by the words “without limitation”; the word
“or” is not exclusive; references to Persons include their respective successors and assigns (to
the extent and only to the extent permitted by the Loan Documents) or, in the case of governmental
Persons, Persons succeeding to the relevant functions of such Persons; references to “either
Agent,” “Applicable Agent,” “neither Agent,” or words of similar import mean Agent or Canadian
Agent or Agents, as the context may require, references to “each Agent” or words of similar import
means each of Agent and Canadian Agent, references to “Agent” (without more) mean exclusively GE
Capital as Agent (not including Canadian Agent); and all references to statutes and related
regulations shall include any amendments of the same and any successor statutes and regulations.
Whenever any provision in any Loan Document refers to the knowledge (or an analogous phrase) of any
Credit Party, such words are intended to signify that such Credit Party has actual knowledge or
awareness of a particular fact or circumstance or that such Credit Party, if it had exercised
reasonable diligence, would have known or been aware of such fact or circumstance.

A-36

 

ANNEX B (Section 1.2)

to

AMENDED AND RESTATED CREDIT AGREEMENT

LETTERS OF CREDIT

          (a) Issuance. Subject to the terms and conditions of the Agreement, (i) Agent and US
Lenders agree to incur, from time to time prior to the Commitment Termination Date, upon the
request of Borrower Representative on behalf of any US Borrower and for such US Borrower’s account,
US Letter of Credit Obligations, (ii) Canadian Agent and Canadian Lenders agree to incur, from time
to time prior to the Commitment Termination Date, upon the request of Borrower Representative on
behalf of any Canadian Borrower and for such Canadian Borrower’s account, Canadian Letter of Credit
Obligations by causing, in the cases of requests for US Letters of Credit, US Letters of Credit to
be issued by GE Capital or a Subsidiary thereof or a bank or other legally authorized Person
selected by or acceptable to Agent in its sole discretion, or, in the case of requests for Canadian
Letters of Credit by causing Canadian Letters of Credit to be issued by GE Capital Canada or an
Affiliate thereof or a bank or other legally authorized Person selected by or acceptable to
Canadian Agent (each, an “L/C Issuer”) for US Borrower’s account, in the case of US Letters
of Credit, and Canadian Borrower’s account, in the case of Canadian Letters of Credit;
provided, that if the L/C Issuer is a Canadian Lender, in the case of a Canadian Letter of
Credit, then such Letters of Credit shall not be guaranteed by the Canadian Agent but rather each
Canadian Lender shall, subject to the terms and conditions hereinafter set forth, purchase (or be
deemed to have purchased) risk participations in all such Letters of Credit issued with the written
consent of the Canadian Agent under the applicable Facilities, as more fully described in paragraph
(b)(ii) below. The aggregate amount of all Letter of Credit Obligations shall not at any time
exceed the least of (i) Forty-Five Million Dollars ($45,000,000) (the “US L/C Sublimit”), (ii) the
Maximum US Amount less the aggregate outstanding principal balance of the US Revolving Credit
Advances and US Swing Line Loans, and (iii) the US Borrowing Base less the aggregate outstanding
principal balance of the US Revolving Credit Advances and US Swing Line Loans. The aggregate
amount of all Canadian Letter of Credit Obligations shall not at any time exceed the least of (i)
$5,000,000 Million Dollars or the Canadian Dollar Equivalent Amount thereof (the “Canadian L/C
Sublimit”), (ii) the Maximum Canadian Amount less the aggregate outstanding principal balance of
the Canadian Revolving Credit Advances and Canadian Swing Line Loans, and (iii) the Canadian
Borrowing Base less the aggregate outstanding principal balance of the Canadian Revolving Credit
Advances and Canadian Swing Line Loans. No such Letter of Credit shall have an expiry date that is
more than one year following the date of issuance thereof, unless otherwise determined by the
Agent, in its sole discretion, and neither of the Agents nor any Lender shall be under any
obligation to incur Letter of Credit Obligations in respect of, or purchase risk participations in,
any Letter of Credit having an expiry date that is later than the Commitment Termination Date.

          (b) (i) Advances Automatic; Participations. In the event that Agent or a US Lender
shall make any payment on or pursuant to any US Letter of Credit Obligation, such payment shall
then be deemed automatically to constitute a US Revolving Credit Advance to the US Borrower, for
whose account such US Letter of Credit Obligation was incurred, under
Section 1.1(a) of the Agreement regardless of whether a Default or Event of Default
has

B-1

 

occurred and is continuing and notwithstanding US Borrowers’ failure to satisfy the conditions
precedent set forth in Section 2, and each US Lender shall be obligated to pay its US Pro
Rata Share thereof in accordance with the Agreement. In the event that Canadian Agent or a
Canadian Lender shall make any payment on or pursuant to any Canadian Letter of Credit Obligation,
such payment shall then be deemed automatically to constitute a Canadian Revolving Credit Advance
to the Canadian Borrower for whose account such Canadian Letter of Credit Obligation was incurred,
regardless of whether a Default or an Event of Default has occurred and is continuing and
notwithstanding Canadian Borrowers’ failure to satisfy the conditions precedent set forth in
Section 2, and each Canadian Lender shall be obligated to pay its Canadian Pro Rata Share
thereof in accordance with the Agreement. The failure of any Lender to make available to the
Applicable Agent its applicable Pro Rata Share of any such Revolving Credit Advance or payment by
the Applicable Agent under or in respect of a Letter of Credit shall not relieve any other
applicable Lender of its obligation hereunder to make available to the Applicable Agent its
applicable Pro Rata Share thereof, but no Lender shall be responsible for the failure of any other
Lender to make available such other Lender’s applicable Pro Rata Share of any such payment.

               (ii) If it shall be illegal or unlawful for US Borrowers to incur US Revolving Credit Advances
or for Canadian Borrowers to incur Canadian Revolving Credit Advances as contemplated by paragraph
(b)(i) above because of an Event of Default described in Section 8.1(h) or (i) or otherwise
or if it shall be illegal or unlawful for any Lender to be deemed to have assumed a ratable share
of the reimbursement obligations owed to an L/C Issuer, or if the L/C Issuer is a Lender, then (A)
immediately and without further action whatsoever, each applicable Lender shall be deemed to have
irrevocably and unconditionally purchased from Applicable Agent (or such L/C Issuer, as the case
may be) an undivided interest and participation equal to such applicable Lender’s applicable Pro
Rata Share (based on the applicable Commitment(s)) of the applicable Letter of Credit Obligations
in respect of all applicable Letters of Credit then outstanding and (B) thereafter, immediately
upon issuance of any Letter of Credit, each applicable Lender shall be deemed to have irrevocably
and unconditionally purchased from Applicable Agent (or such L/C Issuer, as the case may be) an
undivided interest and participation in such applicable Lender’s Pro Rata Share (based on the
applicable Commitment(s)) of the applicable Letter of Credit Obligations with respect to such
Letter of Credit on the date of such issuance. Each Lender shall fund its participation in all
payments or disbursements made under the Letters of Credit in the same manner as provided in the
Agreement with respect to Revolving Credit Advances.

          (c) Cash Collateral.

               (i) If US Borrowers or Canadian Borrowers are required to provide cash collateral for any
Letter of Credit Obligations pursuant to the Agreement prior to the Commitment Termination Date, US
Borrowers will pay to Agent in respect of US Letters of Credit, and Canadian Borrowers will pay to
Canadian Agent in respect of Canadian Letters of Credit, for the ratable benefit of the applicable
Borrowers and applicable Lenders, cash or cash equivalents acceptable to such Applicable Agent
(“Cash Equivalents”) in an amount equal to 105% of the maximum amount then available to be
drawn under each applicable Letter of Credit outstanding for the benefit of such Borrower(s).
Such funds or Cash Equivalents shall be held

B-2

 

by the Applicable Agent in a cash collateral account (each, a “Cash Collateral Account”)
maintained at a bank or financial institution acceptable to the Applicable Agent. The Cash
Collateral Accounts shall be in the names of the applicable Borrowers and shall be pledged to, and
subject to the control of, the Applicable Agent, for the benefit of the Agents and the Lenders, in
a manner satisfactory to the Applicable Agent. US Borrowers hereby pledge and grant to Agent, on
behalf of Agents and Lenders, security interests in all such funds and Cash Equivalents held from
time to time in the Cash Collateral Account established by Agent and all proceeds thereof, as
security for the payment of all amounts due in respect of the US Letter of Credit Obligations and
other Obligations, whether or not then due. Canadian Borrowers hereby pledge and grant to Canadian
Agent, on behalf of Agents and Canadian Lenders, a security interest in all such funds and Cash
Equivalents held from time to time in the Cash Collateral Accounts established by the Canadian
Agent and all proceeds thereof, as security for the payment of all amounts due in respect of the
Canadian Letter of Credit Obligations and other Obligations, whether or not then due. The
Agreement, including this Annex B, shall constitute a security agreement under applicable
law.

               (ii) If any Letter of Credit Obligations, whether or not then due and payable, shall for any
reason be outstanding on the Commitment Termination Date, US Borrowers, in the case of US Letter of
Credit Obligations, and Canadian Borrowers, in the case of Canadian Letter of Credit Obligations,
shall either (A) provide cash collateral therefor in the manner described above, or (B) cause all
related Letters of Credit and guaranties thereof, if any, to be cancelled and returned, or (C)
deliver a stand-by letter (or letters) of credit in guaranty of such Letter of Credit Obligations,
which stand-by letter (or letters) of credit shall be of like tenor and duration (plus 30
additional days) as, and in an amount equal to 105% of, the aggregate maximum amount then available
to be drawn under, the Letters of Credit to which such outstanding Letter of Credit Obligations
relate and shall be issued by a Person, and shall be subject to such terms and conditions, as may
be satisfactory to the Applicable Agent in its sole discretion.

               (iii) From time to time after funds are deposited in a Cash Collateral Account by any
Borrower, whether before or after the Commitment Termination Date, the Applicable Agent may apply
such funds or Cash Equivalents then held in such Cash Collateral Account established by it to the
payment of any amounts, and in such order as such Agent may elect, as shall be or shall become due
and payable by such Borrower to such Applicable Agent and applicable Lenders with respect to Letter
of Credit Obligations and, upon the satisfaction in full of all applicable Letter of Credit
Obligations, to any other Obligations in accordance with the Agreement.

               (iv) No Borrower nor any Person claiming on behalf of or through any Borrower shall have any
right to withdraw any of the funds or Cash Equivalents held in any Cash Collateral Account, except
that upon the termination of all Letter of Credit Obligations and the payment of all amounts
payable by all Borrowers to Agents and Lenders in respect thereof, any funds remaining in the Cash
Collateral Accounts shall be applied to other Obligations then due and owing and upon payment in
full of such Obligations, any remaining amount shall be paid to Borrowers or as otherwise required
by law. Interest earned on deposits in the Cash Collateral Accounts shall contribute additional
cash collateral.

B-3

 

          (d) Fees and Expenses. US Borrowers agree to pay to the Agent for the benefit of
Agent and US Lenders, and Canadian Borrowers agree to pay to the Canadian Agent, for the benefit of
Canadian Agent and the Canadian Lenders, as compensation to such Lenders for Letter of Credit
Obligations incurred by them hereunder, (i) all reasonable costs and expenses incurred by the
Applicable Agent or any applicable Lender on account of such Letter of Credit Obligations, and (ii)
for each month during which any Letter of Credit Obligation shall remain outstanding, a fee (the
“Letter of Credit Fee”) in an amount equal to the Applicable L/C Margin from time to time
in effect multiplied by the maximum amount available from time to time to be drawn under the
applicable Letter of Credit. Such fee shall be paid to the Applicable Agent for the benefit of the
applicable Lenders in arrears, on the first day of each month and on the Commitment Termination
Date. In addition, the US Borrowers and the Canadian Borrowers, as applicable, shall pay to any
L/C Issuer, on demand, such fees (including all per annum fees), charges and expenses of such L/C
Issuer in respect of the issuance, negotiation, acceptance, amendment, transfer and payment of such
Letter of Credit issued for their respective accounts or otherwise payable pursuant to the
application and related documentation under which such Letter of Credit is issued.

          (e) Request for Incurrence of Letter of Credit Obligations. Borrower Representative
shall give Agent, in the case of US Letters of Credit, and both Agents, in the case of Canadian
Letters of Credit, at least 2 Business Days’ prior written notice requesting the incurrence of any
Letter of Credit Obligation. The notice shall be accompanied by the form of the Letter of Credit
(which shall be acceptable to the L/C Issuer) and a completed Application for Standby Letter of
Credit or Application and Agreement for Documentary Letter of Credit or Application for Documentary
Letter of Credit as applicable in the form of Exhibit B1 or B2 or B3 attached hereto or
such other documentation as the Applicable Agent and the L/C Issuer shall require. Notwithstanding
anything contained herein to the contrary, Letter of Credit applications by Borrower Representative
and approvals by the Applicable Agent and the L/C Issuer may be made and transmitted pursuant to
electronic codes and security measures mutually agreed upon and established by and among the
Borrower Representative and Applicable Agent and the applicable L/C Issuer.

          (f) Obligation Absolute. The obligations of US Borrowers to reimburse Agent and US
Lenders, and the Canadian Borrowers to reimburse Canadian Agent and Canadian Lenders, for payments
made with respect to any Letter of Credit Obligation shall be absolute, unconditional and
irrevocable, without necessity of presentment, demand, protest or other formalities, and the
obligations of each applicable Lender to make payments to each Applicable Agent with respect to
Letters of Credit shall be unconditional and irrevocable. Such obligations shall be paid strictly
in accordance with the terms hereof under all circumstances including the following:

               (i) any lack of validity or enforceability of any Letter of Credit or the Agreement or the
other Loan Documents or any other agreement;

               (ii) the existence of any claim, setoff, defense or other right that any Borrower or any of
their respective Affiliates or any Lender may at any time have against a beneficiary or any
transferee of any Letter of Credit (or any Persons or entities for whom any

B-4

 

such transferee may be acting), one or more Agents, any Lender, or any other Person, whether in
connection with the Agreement, the Letter of Credit, the transactions contemplated herein or
therein or any unrelated transaction (including any underlying transaction between any Borrower or
any of their respective Affiliates and the beneficiary for which the Letter of Credit was
procured);

               (iii) any draft, demand, certificate or any other document presented under any Letter of
Credit proving to be forged, fraudulent, invalid or insufficient in any respect or any statement
therein being untrue or inaccurate in any respect;

               (iv) payment by any Applicable Agent (except as otherwise expressly provided in paragraph
(g)(ii)(C) below) or any L/C Issuer under any Letter of Credit or guaranty thereof against
presentation of a demand, draft or certificate or other document that does not comply with the
terms of such Letter of Credit or such guaranty;

               (v) any other circumstance or event whatsoever, that is similar to any of the foregoing; or

               (vi) the fact that a Default or an Event of Default has occurred and is continuing.

          (g) Indemnification; Nature of Lenders’ Duties.

               (i) In addition to amounts payable as elsewhere provided in the Agreement, each of the
Borrowers, jointly and severally, hereby agrees to pay and to protect, indemnify, and save harmless
each Agent and each Lender from and against any and all claims, demands, liabilities, damages,
losses, costs, charges and expenses (including reasonable attorneys’ fees and allocated costs of
internal counsel) that one or more Agents may incur or be subject to as a consequence, direct or
indirect, of (A) the issuance of any Letter of Credit or guaranty thereof, or (B) the failure of
one or more Agents or any Lender seeking indemnification or of any L/C Issuer to honor a demand for
payment under any Letter of Credit or guaranty thereof as a result of any act or omission, whether
rightful or wrongful, of any present or future de jure or de facto government or Governmental
Authority, in each case, other than to the extent solely as a result of the gross negligence or
willful misconduct of such Agent or such Lender (as finally determined by a court of competent
jurisdiction); provided, however, that no cash or assets of any Canadian
Credit Party shall be applied, directly or indirectly, to the Obligations of the US Borrowers.

               (ii) As between one or more Agents and any Lender and Borrowers, Borrowers assume all risks of
the acts and omissions of, or misuse of any Letter of Credit by beneficiaries, of any Letter of
Credit. In furtherance and not in limitation of the foregoing, to the fullest extent permitted by
law, neither Agent nor any Lender shall be responsible for: (A) the form, validity, sufficiency,
accuracy, genuineness or legal effect of any document issued by any party in connection with the
application for and issuance of any Letter of Credit, even if it should in fact prove to be in any
or all respects invalid, insufficient, inaccurate, fraudulent or forged; (B) the validity or
sufficiency of any instrument transferring or assigning or purporting to transfer or assign any
Letter of Credit or the rights or benefits thereunder or proceeds thereof, in whole or in

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part, that may prove to be invalid or ineffective for any reason; (C) failure of the
beneficiary of any Letter of Credit to comply fully with conditions required in order to demand
payment under such Letter of Credit; provided, that in the case of any payment by any
Applicable Agent under any Letter of Credit or guaranty thereof, such Agent shall be liable to the
extent such payment was made solely as a result of its gross negligence or willful misconduct (as
finally determined by a court of competent jurisdiction) in determining that the demand for payment
under such Letter of Credit or guaranty thereof complies on its face with any applicable
requirements for a demand for payment under such Letter of Credit or guaranty thereof; (D) errors,
omissions, interruptions or delays in transmission or delivery of any messages, by mail, cable,
telegraph, telex or otherwise, whether or not they may be in cipher; (E) errors in interpretation
of technical terms; (F) any loss or delay in the transmission or otherwise of any document required
in order to make a payment under any Letter of Credit or guaranty thereof or of the proceeds
thereof; (G) the credit of the proceeds of any drawing under any Letter of Credit or guaranty
thereof; and (H) any consequences arising from causes beyond the control of the Applicable Agent or
any Lender. None of the above shall affect, impair, or prevent the vesting of one or more Agents’
or any Lender’s rights or powers hereunder or under the Agreement.

               (iii) Nothing contained herein shall be deemed to limit or to expand any waivers, covenants or
indemnities made by any Borrower in favor of any L/C Issuer in any letter of credit application,
reimbursement agreement or similar document, instrument or agreement between or among such Borrower
and such L/C Issuer, including an Application and Agreement for Documentary Letter of Credit or a
Master Documentary Agreement and a Master Standby Agreement entered into with one or more Agents.

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ANNEX C (Section 1.8)

to

CREDIT AGREEMENT

CASH MANAGEMENT SYSTEM

I. Domestic Cash Management

          WESCO Distribution, WESCO DC LP and the CSC Borrowers shall, and shall cause each of WESCO
Distribution’s and the CSC Borrowers’ domestic Subsidiaries to, establish and maintain the Cash
Management Systems described below:

          (a) On or before the Closing Date and until the Termination Date, WESCO Distribution shall (i)
at Agent’s discretion, following consultation with Borrowers, establish lock boxes (“Lock
Boxes”) or blocked accounts (“Blocked Accounts”) at one or more of the banks set forth
in Disclosure Schedule (3.19), and (ii) deposit and cause WESCO Distribution’s, WESCO DC
LP’s and the CSC Borrowers’ domestic Subsidiaries to deposit or cause to be deposited promptly, and
in any event no later than the first Business Day after the date of receipt thereof, all cash,
checks, drafts or other similar items of payment relating to or constituting payments made in
respect of any and all Collateral into one or more Blocked Accounts in WESCO Distribution’s, WESCO
DC LP’s, the CSC Borrowers’ or any such Subsidiary’s name, as appropriate, and at a bank identified
in Disclosure Schedule (3.19) (each, a “Relationship Bank”). On or before the
Closing Date, WESCO Distribution shall have established a concentration account in its name (the
“Concentration Account”) at the bank that shall be designated as the Concentration Account
bank for Borrowers in Disclosure Schedule (3.19) (the “Concentration Account Bank”)
which bank shall be reasonably satisfactory to Agent.

          (b) WESCO Distribution, WESCO DC LP and the CSC Borrowers may maintain, in their respective
own names, an account (each a “Disbursement Account” and, collectively, the
“Disbursement Accounts”) at a bank acceptable to Agent. Agent shall, from time to time,
deposit proceeds of Revolving Credit Advances and Swing Line Advances made to Borrowers pursuant to
Section 1.1 for use by Borrowers in accordance with the provisions of Section 1.4
into Borrowers’ Disbursement Account. WESCO DC LP shall, from time to time, deposit proceeds of
loans made to it by WESCO Distribution in accordance with Section 6.3(a)(ix) into WESCO DC
LP’s Disbursement Account.

          (c) On or before the Closing Date, the Concentration Account Bank, each bank where a
Disbursement Account is maintained and all other Relationship Banks, shall have entered into
tri-party blocked account agreements with Agent, for the benefit of itself and Lenders, and WESCO
Distribution, WESCO DC LP, the CSC Borrowers and WESCO Distribution’s and the CSC Borrowers’
domestic Subsidiaries, as applicable, in form and substance reasonably acceptable to Agent, which
shall become operative on or prior to the Closing Date. Each such blocked account agreement shall
provide, among other things, that (i) all items of payment deposited in such account and proceeds
thereof deposited in the Concentration Account are held by such bank as agent or
bailee-in-possession for Agent, on behalf of itself and Lenders,
(ii) the bank executing such agreement has no rights of setoff or

C-1

 

recoupment or any other
claim against such account, as the case may be, other than for payment of its service fees and
other charges directly related to the administration of such account and for returned checks or
other items of payment, and (iii) from and after the Closing Date (A) with respect to banks at
which a Blocked Account is maintained, such bank agrees, from and after the receipt of a notice (an
“Activation Notice”) from Agent (which Activation Notice may be given by Agent at any time
at which a Default or Event of Default has occurred and is continuing (an “Activation
Event”)), to forward immediately all amounts in each Blocked Account to the Concentration
Account Bank and to commence the process of daily sweeps from each such Blocked Account into the
Concentration Account and (B) with respect to the Concentration Account Bank, such bank agrees from
and after the receipt of an Activation Notice from Agent upon the occurrence of an Activation
Event, to immediately forward all amounts received in the Concentration Account to the Collection
Account through daily sweeps from such Concentration Account into the Collection Account. From and
after the date Agent has delivered an Activation Notice to any bank with respect to any Blocked
Account(s), none of WESCO Distribution, WESCO DC LP or the CSC Borrowers shall, and shall not cause
or permit any domestic Subsidiary of WESCO Distribution or the CSC Borrowers to, accumulate or
maintain cash in Disbursement Accounts or payroll accounts as of any date of determination in
excess of checks outstanding against such accounts as of that date and amounts necessary to meet
minimum balance requirements. In addition, following delivery of an Activation Notice, all amounts
received in the Concentration Account from the Canadian Concentration Account (as such term is
defined below) shall immediately be forwarded by WESCO Distribution into the Collection Account
through daily sweeps from the Concentration Account into the Collection Account.

          (d) Notwithstanding any other provision of this Annex C, until such time as the
Permitted Receivables Financing has been terminated and all obligations thereunder repaid, each of
Agent, Lenders, Borrowers and the other Credit Parties acknowledges and agrees that, except as set
forth in the Intercreditor Agreement, neither Agent nor any Lender shall have any interest in any
lock box or bank account or other asset or property of WESCO Receivables Corp. and shall not take
any action whatsoever with respect to any lockbox or bank account of WESCO Receivables Corp. or
impose any requirements to create any new lock box or bank account for WESCO Receivables Corp.

          (e) So long as no Default or Event of Default has occurred and is continuing, Borrowers may
amend Disclosure Schedule (3.19) to add or replace a Relationship Bank, Lock Box or Blocked
Account or to replace the Concentration Account or any Disbursement Account; provided, that
(i) Agent shall have consented in writing in advance to the opening of such account or Lock Box
with the relevant bank and (ii) prior to the time of the opening of such account or Lock Box, WESCO
Distribution, WESCO DC LP, the CSC Borrowers or WESCO Distribution’s or the CSC Borrowers’ domestic
Subsidiary, as applicable, and such bank shall have executed and delivered to Agent a tri-party
blocked account agreement, in form and substance reasonably satisfactory to Agent. Each of WESCO
Distribution, WESCO DC LP, the CSC Borrowers and WESCO Distribution’s and the CSC Borrowers’
domestic Subsidiaries shall close any of its accounts (and establish replacement accounts in
accordance with the foregoing sentence) promptly and in any event within 30 days following notice
from Agent that the creditworthiness of any bank holding an account is no longer acceptable in
Agent’s reasonable judgment, or as
promptly as practicable and in any event within 60 days following notice from

C-2

 

Agent that the
operating performance, funds transfer or availability procedures or performance with respect to
accounts or Lock Boxes of the bank holding such accounts or Agent’s liability under any tri-party
blocked account agreement with such bank is no longer acceptable in Agent’s reasonable judgment.

          (f) The Lock Boxes, Blocked Accounts, Disbursement Accounts and the Concentration Account
shall be cash collateral accounts, with all cash, checks and other similar items of payment in such
accounts securing payment of the Loans and all other Obligations, and in which WESCO Distribution,
WESCO DC LP, the CSC Borrowers and each domestic Subsidiary of WESCO Distribution and the CSC
Borrowers party to the respective Security Agreement shall have granted a Lien to Agent, on behalf
of itself, Canadian Agent and Lenders, pursuant to the respective Security Agreement.

          (g) All amounts deposited in the Collection Account shall be deemed received by Agent in
accordance with Section 1.10.

          (h) Borrowers and each other Credit Party shall and shall cause its Affiliates, officers,
employees, agents, directors or other Persons acting for or in concert with Borrowers or any
domestic Subsidiary of WESCO Distribution or the CSC Borrowers (each a “Related Person”),
to hold in trust for Agent, for the benefit of itself and Lenders, all checks, cash and other items
of payment received by Borrowers, any domestic Subsidiary of WESCO Distribution or the CSC
Borrowers or any such Related Person. Borrowers, each domestic Subsidiary of Borrowers and each
Related Person thereof acknowledges and agrees that all cash, checks or other items of payment
constituting proceeds of Collateral are part of the Collateral. All proceeds of the sale or other
disposition of any Collateral, shall be deposited directly into Blocked Accounts.

II. Canadian Cash Management

          WESCO Canada shall, and shall cause its Canadian Subsidiaries, if any, to, establish and
maintain the Cash Management Systems described below:

          (a) On or before the Closing Date and until the Termination Date, WESCO-Canada shall (i) at
Agent’s discretion following consultation with Borrowers, establish lock boxes (“Canadian Lock
Boxes”) or blocked accounts (“Canadian Blocked Accounts”) at one or more of the banks
set forth in Disclosure Schedule (3.19), and (ii) deposit and cause its Canadian
Subsidiaries, if any, to deposit or cause to be deposited promptly, and in any event no later than
the first Business Day after the date of receipt thereof, all cash, checks, drafts or other similar
items of payment relating to or constituting payments made in respect of any and all Collateral
(whether or not otherwise delivered to a Lock Box) into one or more Blocked Accounts in WESCO
Canada’s or any such Canadian Subsidiary’s name, as appropriate, and at a bank identified in
Disclosure Schedule (3.19) (each, a “Canadian Relationship Bank”). On or before
the Closing Date, WESCO Canada shall have established a concentration account in its name (the
“Canadian Concentration Account”) at the bank that shall be designated as the Concentration
Account bank for WESCO Canada in Disclosure Schedule (3.19) (the “Canadian
Concentration Account Bank”) which bank shall be reasonably satisfactory to Agent.

C-3

 

          (b) On or before the Closing Date (or such later date as Agent shall consent to in writing),
the Canadian Concentration Account Bank, each bank where a Canadian Disbursement Account is
located, and all other Canadian Relationship Banks, shall have entered into tri-party blocked
account agreements with Agent, for the benefit of itself and Lenders, and WESCO Canada and its
Canadian Subsidiaries, if any, as applicable, in form and substance reasonably acceptable to Agent,
which shall become operative on or prior to the Closing Date. Each such blocked account agreement
shall provide, among other things, that (i) all items of payment deposited in such account and
proceeds thereof deposited in the Canadian Concentration Account are held by such bank as agent or
bailee-in-possession for Agent, on behalf of itself and Lenders, (ii) the bank executing such
agreement has no rights of setoff or recoupment or any other claim against such account, as the
case may be, other than for payment of its service fees and other charges directly related to the
administration of such account and other accounts of WESCO Canada maintained with such bank, for
the amount of any required adjustments due to clerical or calculation errors directly related to
such accounts and for returned checks or other items of payment, and (iii) from and after the
Closing Date (A) with respect to banks at which a Canadian Blocked Account is maintained, such bank
agrees, from and after the receipt of an Activation Notice from Agent (which Activation Notice may
be given by Agent at any time at which an Activation Event has occurred), to forward immediately
all amounts in each Canadian Blocked Account to the Canadian Concentration Account Bank and to
commence the process of daily sweeps from such Canadian Blocked Account into the Canadian
Concentration Account and (B) with respect to the Canadian Concentration Account Bank, such bank
agrees from and after the receipt of an Activation Notice from Agent upon the occurrence of an
Activation Event, to immediately forward all amounts received in the Canadian Concentration Account
to the Concentration Account through daily sweeps from the Canadian Concentration Account into the
Concentration Account. From and after the date Agent has delivered an Activation Notice to any
bank with respect to any Canadian Blocked Account(s), WESCO Canada shall not, nor shall it cause or
permit any Subsidiary thereof to, accumulate or maintain cash in Canadian Disbursement Accounts or
payroll accounts as of any date of determination in excess of checks outstanding against such
accounts as of that date and amounts necessary to meet minimum balance requirements.

          (c) So long as no Default or Event of Default has occurred and is continuing, Borrowers may
amend Disclosure Schedule (3.19) to add or replace a Canadian Relationship Bank, Canadian
Lock Box or Canadian Blocked Account or to replace the Canadian Concentration Account or any
Canadian Disbursement Account Distribution; provided, that (i) Agent shall have consented
in writing in advance to the opening of such account or Canadian Lock Box with the relevant bank
and (ii) prior to the time of the opening of such account or Canadian Lock Box, WESCO Canada or its
Subsidiary, as applicable, and such bank shall have executed and delivered to Agent a tri-party
blocked account agreement, in form and substance reasonably satisfactory to Agent. WESCO Canada
and each of its Subsidiaries, if any, shall close any of its accounts (and establish replacement
accounts in accordance with the foregoing sentence) promptly and in any event within 30 days
following notice from Agent that the creditworthiness of any bank holding an account is no longer
acceptable in Agent’s reasonable
judgment, or as promptly as practicable and in any event within 60 days following notice from
Agent that the operating performance, funds transfer or availability procedures or performance with
respect to accounts or Canadian Lock Boxes of the bank holding such accounts or Agent’s

C-4

 

liability under any tri-party blocked account agreement with such bank is no longer acceptable in Agent’s
reasonable judgment.

          (d) The Canadian Lock Boxes, Canadian Blocked Accounts, Canadian Disbursement Accounts and the
Canadian Concentration Account shall be cash collateral accounts, with all cash, checks and other
similar items of payment in such accounts securing payment of the Loans and all other Obligations,
and in which WESCO Canada and each Subsidiary thereof, if any, shall have granted a Lien to Agent,
on behalf of itself and Lenders, pursuant to the Security Agreement.

          (e) WESCO Canada shall and shall cause its Canadian Affiliates, officers, employees, agents,
directors or other Canadian Persons acting for or in concert with Borrowers (each a “Canadian
Related Person”) to (i) hold in trust for Agent, for the benefit of itself and Lenders, all
checks, cash and other items of payment received by WESCO Canada, any Canadian Subsidiary or any
such Canadian Related Person, and (ii) within 1 Business Day after receipt by WESCO Canada, any
Canadian Subsidiary or any such Related Person of any checks, cash or other items of payment,
deposit the same into a Canadian Blocked Account. WESCO Canada, each Canadian Subsidiary, if any,
and each Canadian Related Person acknowledges and agrees that all cash, checks or other items of
payment constituting proceeds of Collateral are part of the Collateral. All proceeds of the sale
or other disposition of any Canadian Collateral shall be deposited directly into Canadian Blocked
Accounts.

C-5

 

ANNEX E (Section 4.1(a))

to

AMENDED AND RESTATED CREDIT AGREEMENT

FINANCIAL STATEMENTS and PROJECTIONS – REPORTING

          Borrowers shall deliver or cause to be delivered to Agent or to Agent and Lenders, as
indicated, the following:

          (a) Monthly Financials. To Agent for distribution to the Lenders, within 30 days
after the end of each Fiscal Month, consolidated financial information regarding Holdings and its
Subsidiaries, certified by the Chief Financial Officer or Treasurer of Holdings, consisting of
consolidated (i) unaudited balance sheets as of the close of such Fiscal Month and the related
statements of income and cash flows for that portion of the Fiscal Year ending as of the close of
such Fiscal Month; and (ii) unaudited statements of income and cash flows for such Fiscal Month,
setting forth in comparative form the figures for the corresponding period in the prior year, all
prepared in accordance with GAAP (subject to normal quarterly and year-end adjustments). Such
financial information shall be accompanied by the certification of the Chief Financial Officer or
Treasurer of Holdings that (i) such financial information presents fairly in accordance with GAAP
(subject to normal quarterly and year-end adjustments) the financial position and results of
operations of Holdings and its Subsidiaries, on a consolidated basis, in each case as at the end of
such Fiscal Month and for that portion of the Fiscal Year then ended and (ii) any other information
presented is true, correct and complete in all material respects and that there was no Default or
Event of Default in existence as of such time or, if a Default or Event of Default shall have
occurred and be continuing, describing the nature thereof and all efforts undertaken to cure such
Default or Event of Default.

          (b) Quarterly Financials. To Agent for distribution to the Lenders, within 45 days
after the end of each Fiscal Quarter, (unaudited) consolidated and (unaudited) consolidating
financial information regarding Holdings and its Subsidiaries, certified by the Chief Financial
Officer or Treasurer of Holdings, including (i) unaudited balance sheets as of the close of such
Fiscal Quarter and the related statements of income and cash flow for that portion of the Fiscal
Year ending as of the close of such Fiscal Quarter; (ii) unaudited statements of income and cash
flows for such Fiscal Quarter, in each case setting forth in comparative form the figures for the
corresponding period in the prior year and the figures contained in the Projections for such Fiscal
Year, all prepared in accordance with GAAP (subject to normal year-end adjustments); and (iii) a
summary of the outstanding balance of all Intercompany Notes, all other intercompany loans and
advances and all intercompany investments as of the last day of the Fiscal Quarter. Such financial
information shall be accompanied by (A) a statement in reasonable detail (each, a “Compliance
Certificate”) showing the calculations used in determining compliance with each of the
Financial Covenants that is tested on a quarterly basis, if required, and (B) the certification of
the Chief Financial Officer or Treasurer of Holdings that (i) such financial information presents
fairly in accordance with GAAP (subject to normal year-end adjustments) the financial position,
results of operations and statements of cash flows of Holdings and its Subsidiaries, on both a
consolidated and consolidating basis, as at the end of such Fiscal Quarter and for that portion of
the Fiscal Year
then ended, (ii) any other information presented is true, correct and complete in

E-1

 

all material
respects and that there was no Default or Event of Default in existence as of such time or, if a
Default or Event of Default has occurred and is continuing, describing the nature thereof and all
efforts undertaken to cure such Default or Event of Default. In addition, Holdings shall deliver
to Agent and Lenders, within 45 days after the end of each Fiscal Quarter, a management discussion
and analysis as filed by Holdings with the Securities and Exchange Commission.

          (c) Operating Plan. To Agent for distribution to the Lenders, as soon as available,
but not later than 45 days after the end of each Fiscal Year, an annual operating plan for
Holdings, as certified by the Chief Financial Officer or Treasurer of Holdings, for the following
Fiscal Year, which (i) includes a statement of all of the material assumptions on which such plan
is based, (ii) includes quarterly balance sheets, income statements and statements of cash flow for
the following year and (iii) integrates sales, gross profits, operating expenses, operating profit,
cash flow projections and Borrowing Availability projections, all prepared on the same basis and in
similar detail as that on which operating results are reported (and in the case of cash flow
projections, representing management’s good faith estimates of future financial performance based
on historical performance), and including plans for Capital Expenditures.

          (d) Annual Audited Financials. (i) To Agent for distribution to the Lenders, within 90
days after the end of each Fiscal Year, audited Financial Statements for Holdings and its
Subsidiaries on a consolidated and (unaudited) consolidating basis, consisting of balance sheets
and statements of income and retained earnings and cash flows, setting forth in comparative form in
each case the figures for the previous Fiscal Year, which Financial Statements shall be prepared in
accordance with GAAP and certified without qualification, by an independent certified public
accounting firm of national standing or otherwise acceptable to Agent. Such Financial Statements
shall be accompanied by (i) a statement prepared in reasonable detail showing the calculations used
in determining compliance with each of the Financial Covenants, if then applicable, (ii) a report
from such accounting firm to the effect that, in connection with their audit examination, nothing
has come to their attention to cause them to believe that a Default or Event of Default has
occurred (or specifying those Defaults and Events of Default that they became aware of), it being
understood that such audit examination extended only to accounting matters and that no special
investigation was made with respect to the existence of Defaults or Events of Default, (iii) the
annual letters to such accountants in connection with their audit examination detailing contingent
liabilities and material litigation matters, and (iv) the certification of the Chief Executive
Officer or Chief Financial Officer or Treasurer of Holdings that all such Financial Statements
present fairly in accordance with GAAP the financial position, results of operations and statements
of cash flows of Holdings and its Subsidiaries on a consolidated and consolidating basis, as at the
end of such Fiscal Year and for the period then ended, and that there was no Default or Event of
Default in existence as of such time or, if a Default or Event of Default has occurred and is
continuing, describing the nature thereof and all efforts undertaken to cure such Default or Event
of Default.

          (ii) To Agent for distribution to the Lenders, within 90 days after the end of each Fiscal
Year, unaudited Financial Statements for Canadian Borrowers on a consolidated basis, consisting of
balance sheets and statements of income and retained earnings and cash flows, setting forth in
comparative form in each case the figures for the previous Fiscal Year, which

E-2

 

Financial Statements shall be prepared in accordance with GAAP. Such Financial Statements
shall be accompanied by the certification of the Chief Executive Officer or Chief Financial
Officer or Treasurer of the Canadian Borrowers that all such Financial Statements present fairly in
accordance with GAAP the financial position, results of operations and statements of cash flows of
Canadian Borrowers on a consolidated basis, as at the end of such Fiscal Year and for the period
then ended, and that there was no Default or Event of Default in existence as of such time or, if a
Default or Event of Default has occurred and is continuing, describing the nature thereof and all
efforts undertaken to cure such Default or Event of Default

          (e) Collateral Audits. To Agent for distribution to the Lenders, as soon as
available, but not later than thirteen months after the delivery of the last Collateral Audit, and
upon an Event of Default, upon Agent’s request, a Collateral Audit of Domestic Receivables
performed by FTI Consulting (or another firm acceptable to Agent) at the request of agent or
lenders, which are the providers (i.e., the lenders) pursuant to the Permitted Receivables
Financing for Holdings and its Subsidiaries.

          (f) Securitization Settlement Reports. To Agent for distribution to the Lenders,
within 30 days after the end of each Fiscal Month, a certified copy of a securitization settlement
report or any other similar report provided to the financial institutions, which are the providers
(i.e., the lenders) pursuant to the Permitted Receivables Financing, for Holdings and its
Subsidiaries.

          (g) Management Letters. To Agent for distribution to the Lenders, within 5 Business
Days after receipt thereof by any Credit Party, copies of all management letters, exception reports
or similar material letters or reports received by such Credit Party from its independent certified
public accountants.

          (h) Default Notices. To Agent for distribution to the Lenders, as soon as
practicable, and in any event within 5 Business Days after an executive officer of any Borrower has
actual knowledge of the existence of any Default, Event of Default or other event that has had a
Material Adverse Effect, telephonic or telecopied notice specifying the nature of such Default or
Event of Default or other event, including the anticipated effect thereof, which notice, if given
telephonically, shall be promptly confirmed in writing on the next Business Day.

          (i) SEC Filings and Press Releases. To Agent for distribution to the Lenders promptly
upon their becoming available, copies of: (i) all Financial Statements, reports, notices and proxy
statements made publicly available by any Credit Party to its security holders; (ii) all regular
and periodic reports and all registration statements and prospectuses, if any, filed by any Credit
Party with any securities exchange or with the Securities and Exchange Commission or any
governmental or private regulatory authority; and (iii) all press releases and other statements
made available by any Credit Party to the public concerning material changes or developments in the
business of any such Person.

          (j) Subordinated Debt, Permitted Receivables Financing and Equity Notices. To Agent,
as soon as practicable, copies of all written notices (including, without limitation, any
amendments, waivers or other modifications) given or received by any Credit Party with respect to
the Permitted Receivables Financing or any Subordinated Debt or Stock of such Person, and,

E-3

 

within 2 Business Days after any Credit Party obtains knowledge of any matured or unmatured
breach, default or event of default with respect to a Permitted Receivables Financing or any
Subordinated Debt, notice of such breach, default or event of default.

          (k) Supplemental Schedules. To Agent, supplemental disclosures, if any, required by
Section 5.6.

          (l) Litigation. To Agent in writing, promptly upon learning thereof, notice of any
Litigation commenced or threatened against any Credit Party that (i) seeks damages in excess of
$1,000,000, (ii) seeks injunctive relief, (iii) is asserted or instituted against any Plan, its
fiduciaries or its assets or against any Credit Party or ERISA Affiliate in connection with any
Plan, (iv) alleges criminal misconduct by any Credit Party, (v) alleges the violation of any law
regarding, or seeks remedies in connection with, any Environmental Liabilities; or (vi) involves
any product recall.

          (m) Insurance Notices. To Agent, disclosure of losses or casualties required by
Section 5.4.

          (n) Lease Default Notices. To Agent, within 5 Business Days after receipt thereof,
copies of (i) any and all payment default and other material default notices received under or with
respect to any leased location or public warehouse where Collateral is located, and (ii) such other
notices or documents as Agent may reasonably request.

          (o) Lease Amendments. To Agent, within 5 Business Days after receipt thereof, copies
of all material amendments to any real estate leases, but without any requirement to deliver lease
renewals entered into in the ordinary course of business.

          (p) Management Loan Program. To Agent, within 45 days after the end of each Fiscal
Quarter, a report, in detail and form and substance satisfactory to Agent, with respect to all
guaranties provided by any Credit Party with respect to loans provided to senior management by any
Lender in respect of loans so provided to enable senior management to purchase shares of common
Stock of Holdings.

          (q) Other Documents. To Agent for distribution to Lenders, such other financial and
other information respecting any Credit Party’s business or financial condition as Agent or any
Lender through Agent shall, from time to time, reasonably request.

E-4

 

ANNEX F (Section 4.1(b))

to

AMENDED AND RESTATED CREDIT AGREEMENT

COLLATERAL REPORTS

          Borrowers shall deliver or cause to be delivered (and, at the request of Lenders, Agent shall
provide to Lenders) the following:

          (a) To Agent, upon its request, and in any event no less frequently than noon New York time,
10 Business Days after the end of each Fiscal Month (together with a copy of all or any part of the
following reports requested by any Lender in writing after the Closing Date), each of the following
reports, each of which shall be prepared by the Borrower Representative as of the last day of the
immediately preceding Fiscal Month or the date 2 days prior to the date of any such request:

     (i) a Borrowing Base Certificate with respect to (A) US Borrowers and WESCO Receivables
on a combined basis, on the one hand, and (B) Canadian Borrowers on a combined basis, on the
other hand, each of which shall include a calculation of Borrowing Availability in Dollars
as to the Borrowers whose assets are included in the computation of the applicable Borrowing
Base (and in addition, a calculation of Borrowing Availability in Canadian Dollars as to the
Canadian Borrowers included in the Canadian Borrowing Base Certificate); in each case
accompanied by such supporting detail and documentation as shall be requested by Agent in
its reasonable discretion,;

     (ii) with respect to each Borrower, a summary of Inventory by location and type with a
supporting perpetual Inventory report, in each case accompanied by such supporting detail
and documentation as shall be requested by Agent in its reasonable discretion; and

     (iii) with respect to WESCO DC LP, WESCO Receivables and the CSC Borrowers, a monthly
trial balance showing Accounts outstanding aged from invoice date as follows: 1 to 30 days,
31 to 60 days, 61 to 90 days 91 days to 150 days and 150 days or more, accompanied by such
supporting detail and documentation as shall be requested by Agent in its reasonable
discretion.

          (b) To Agent, on a monthly basis so long as then excess Borrowing Availability is greater than
$35,000,000 and, if then excess Borrowing Availability is $35,000,000 or less, on a weekly basis,
or at such more frequent intervals as Agent may request from time to time (together with a copy of
all or any part of such delivery requested by any Lender in writing after the Closing Date),
collateral reports with respect to each Borrower and WESCO Receivables, including all additions and
reductions (cash and non-cash) with respect to Accounts of WESCO DC LP, in each case accompanied by
such supporting detail and documentation as shall be requested by Agent in its reasonable
discretion each of which shall be prepared by the
Borrower Representative as of the last day of the immediately preceding week or the date 2
days prior to the date of any request.

F-1

 

          (c) To Agent, at the time of delivery of each of the monthly Financial Statements delivered
pursuant to Annex E:

     (i) a reconciliation of the perpetual inventory to the most recent Borrowing Base
Certificate, general ledger and monthly Financial Statements delivered pursuant to Annex
E, in each case accompanied by such supporting detail and documentation as shall be
requested by Agent in its reasonable discretion; and

     (ii) at Agent’s reasonable request, an aging of accounts payable and a reconciliation
of that accounts payable aging to each Borrower’s general ledger and monthly Financial
Statements delivered pursuant to Annex E, in each case accompanied by such
supporting detail and documentation as shall be requested by Agent in its reasonable
discretion;

          (d) To Agent, at the time of delivery of each of the quarterly Financial Statements delivered
pursuant to Annex E, a list of any applications for the registration of any Patent,
Trademark or Copyright filed by any Credit Party with the United States Patent and Trademark
Office, the United States Copyright Office or any similar office or agency in the prior Fiscal
Quarter;

          (e) Each Borrower, at its own expense, shall deliver to Agent the results of each physical
verification, if any, that such Borrower or any of their Subsidiaries may in their discretion have
made, or caused any other Person to have made on their behalf, of all or any portion of their
Inventory (and, if a Default or an Event of Default has occurred and be continuing, each Borrower
shall, upon the request of Agent, conduct, and deliver the results of, all such physical
verifications as Agent may require);

          (f) Holdings, at its own expense, shall deliver to Agent all such asset appraisals as Agent
may request at any time after the occurrence and during the continuance of a Default or an Event of
Default, such appraisals to be conducted by an appraiser, and in form and substance reasonably
satisfactory to Agent;

          (g) Holdings, at its own expense, shall deliver to Agent, at the time of delivery of the
quarterly Financial Statements pursuant to Annex E, a report detailing any and all
outstanding Intercompany Notes, including specifying the parties thereto and amounts outstanding,
together with a certification that the borrower under such Intercompany Notes has deducted
withholding tax exigible on any payments made in connection therewith, has remitted such amounts
when due and payable, and if paid, evidence of payment, or if not yet due and payable, a
certification of the amount due, which shall be fully reserved for in the Borrowing Base
Certificate;

          (h) To Agent, upon its request and in any event no less frequently than noon New York time, 10
Business Days after the end of each Fiscal Month, a detailed listing of all
surety bonds then outstanding; which listing shall specifically include a detailed listing of
all performance bonds outstanding, and shall be accompanied by such supporting detail and
documentation as shall be requested by Agent in its reasonable discretion;

F-2

 

          (i) At any time that Borrowing Availability is less than the sum of (i) Sixty Million Dollars
($60,000,000) plus (ii) Securitization Additional Availability, it shall deliver to Agent an
accounts rollforward, in form and substance and covering a period satisfactory to Agent, in its
sole discretion, on a weekly basis; and

          (j) Such other reports, statements and reconciliations with respect to the Borrowing Base or
Collateral or Obligations of any or all Credit Parties and WESCO Receivables as Agent shall from
time to time request in its reasonable discretion.

F-3

 

ANNEX G (Section 6.10)

to

AMENDED AND RESTATED CREDIT AGREEMENT

FINANCIAL COVENANTS

          At any time Borrowing Availability is less than $60,000,000 (and subject to the provisions of
clause (b) below, Borrowers shall not breach or fail to comply with any of the following financial
covenants, each of which shall be calculated in accordance with GAAP consistently applied:

     (a) Maximum Capital Expenditures. Borrowers and their Subsidiaries on a consolidated
basis shall not make Capital Expenditures during any Fiscal Year that exceed $25,000,000 in the
aggregate; provided, however, that amounts permitted to be expended in any one Fiscal Year that are
not expended during such Fiscal Year (not including any amount permitted to be carried forward from
a prior Fiscal Year) shall be permitted to be expended in, but only in, the next subsequent Fiscal
Year.

     (b) Minimum Fixed Charge Coverage Ratio. Holdings and its Subsidiaries shall have on
a consolidated basis at the end of each Fiscal Quarter, a Fixed Charge Coverage Ratio for the
12-month period then ended of not less than 1.1 to 1.0.

          Unless otherwise specifically provided herein, any accounting term used in the Agreement shall
have the meaning customarily given such term in accordance with GAAP, and all financial
computations hereunder shall be computed in accordance with GAAP consistently applied. That
certain items or computations are explicitly modified by the phrase “in accordance with GAAP” shall
in no way be construed to limit the foregoing. If any “Accounting Changes” (as defined below)
occur and such changes result in a change in the calculation of the financial covenants, standards
or terms used in the Agreement or any other Loan Document, then Borrower, Agent and Lenders agree
to enter into negotiations in order to amend such provisions of the Agreement so as to equitably
reflect such Accounting Changes with the desired result that the criteria for evaluating Borrowers’
and their Subsidiaries’ financial condition shall be the same after such Accounting Changes as if
such Accounting Changes had not been made; provided, however, that the agreement of
Requisite Lenders to any required amendments of such provisions shall be sufficient to bind all
Lenders. “Accounting Changes” means (i) changes in accounting principles required by the
promulgation of any rule, regulation, pronouncement or opinion by the Financial Accounting
Standards Board of the American Institute of Certified Public Accountants (or successor thereto or
any agency with similar functions), (ii) changes in accounting principles concurred in by
Borrower’s certified public accountants; (iii) purchase accounting adjustments under A.P.B. 16 or
17 and EITF 88-16, and the application of the accounting principles set forth in FASB 109,
including the establishment of reserves pursuant thereto and any subsequent reversal (in whole or
in part) of such reserves; and (iv) the reversal of any reserves established as a result of
purchase accounting adjustments. If Agent, Borrowers and Requisite Lenders agree upon the required
amendments, then after appropriate amendments have been executed and the underlying Accounting
Change with respect thereto has been implemented, any reference to GAAP contained in the Agreement
or in any other Loan

G-1

 

Document shall, only to the extent of
such Accounting Change, refer to GAAP, consistently applied after giving effect to the
implementation of such Accounting Change. If Agent, Borrowers and Requisite Lenders cannot agree
upon the required amendments within 30 days following the date of implementation of any Accounting
Change, then all Financial Statements delivered and all calculations of financial covenants and
other standards and terms in accordance with the Agreement and the other Loan Documents shall be
prepared, delivered and made without regard to the underlying Accounting Change. For purposes of
Section 8.1, a breach of a Financial Covenant contained in this Annex G shall be
deemed to have occurred as of any date of determination by Agent or as of the last day of any
specified measurement period, regardless of when the Financial Statements reflecting such breach
are delivered to Agent.

G-2

 

EXHIBIT A

Eligible Securitization Receivables

          All of the Accounts purchased and owned by WESCO Receivables pursuant to the Permitted
Receivables Financing and reflected in the most recent Borrowing Base Certificate delivered by
Borrower Representative to Agent shall be “Eligible Securitization Receivables” for purposes of
this Agreement, except any such Account to which any of the exclusionary criteria set forth below
applies. Agent shall have the right to establish, modify or eliminate Reserves against Eligible
Securitization Receivables from time to time in its reasonable credit judgment. In addition, Agent
reserves the right, at any time and from time to time after the Closing Date, to adjust any of the
criteria set forth below, to establish new criteria and to adjust advance rates with respect to
Eligible Securitization Receivables, in its reasonable credit judgment, subject to the approval of
Supermajority Lenders in the case of adjustments, new criteria, or changes in advance rates or the
elimination of Reserves imposed as of the Closing Date which have the effect of making more credit
available (it being understood that Agent may in its reasonable credit judgment eliminate Reserves
established by it in its reasonable credit judgment after the Closing Date without the necessity of
obtaining the approval of Supermajority Lenders or Requisite Lenders). Eligible Securitization
Receivables shall not include any Account other than an Account purchased and owned by WESCO
Receivables pursuant to the Permitted Receivables Financing and shall not include any such Account:

          (a) that does not arise from the sale of goods or the performance of services in the ordinary
course of its business;

          (b) (i) upon which WESCO Receivables’ right to receive payment is not absolute or is
contingent upon the fulfillment of any condition whatsoever or (ii) as to which WESCO Receivables
is not able to bring suit or otherwise enforce its remedies against the Account Debtor through
judicial process, or (iii) if the Account represents a progress billing consisting of an invoice
for goods sold or used or services rendered pursuant to a contract under which the Account Debtor’s
obligation to pay that invoice is subject to completion of further performance under such contract
or is subject to the equitable lien of a surety bond issuer;

          (c) to the extent that any defense, counterclaim, setoff or dispute is asserted as to such
Account;

          (d) that is not a true and correct statement of bona fide indebtedness incurred in the amount
of the Account for merchandise sold to or services rendered and accepted by the applicable Account
Debtor;

          (e) with respect to which an invoice, reasonably acceptable to Agent in form and substance,
has not been sent to the applicable Account Debtor;

          (f) that (i) is not owned by WESCO Receivables or (ii) is subject to any right, claim,
security interest or other interest of any other Person, other than Liens in favor of the

Exhibit A-1

 

 

financial institutions which are the providers (i.e., lenders) under the Receivables
Purchase Agreement, Liens in favor of Agent, on behalf of itself and Lenders;

          (g) that arises from a sale to any director, officer, other employee or Affiliate of any
Credit Party or WESCO Receivables, or to any entity that has any common officer or director with
any Credit Party or WESCO Receivables;

          (h) that is the obligation of an Account Debtor that is the United States government or a
political subdivision thereof, or any state, county or municipality or department, agency or
instrumentality thereof or that is the Canadian government (Her Majesty in Right of Canada) or a
political subdivision thereof, or a department, agency or instrumentality thereof unless Agent, in
its sole discretion, has agreed to the contrary in writing and WESCO Receivables, and all other
necessary or advisable Credit Parties with respect to such Account, if necessary or desirable, has
complied with respect to such obligation with the Federal Assignment of Claims Act of 1940 (for
Account Debtors that are United States government or a political subdivision thereof) or any
applicable state, county or municipal law restricting the assignment thereof (for Account Debtors
that are a state, county, or municipality or department, agency or instrumentality thereof) or
WESCO Receivables, and all other necessary or advisable Credit Parties with respect to such
Account, if necessary or desirable, has complied with the Financial Administration Act (Canada) or
any applicable provincial or territorial statute or municipal ordinance of similar purpose with
respect to such obligation, as applicable, or any applicable statutes or ordinances of similar
purpose, with respect to such obligation, as applicable,

          (i) that is the obligation of an Account Debtor located in a country other than the United
States (including all fifty states) or Canada unless payment thereof is assured by a letter of
credit assigned and delivered to Agent, satisfactory to Agent as to form, amount and issuer; or is
backed by credit insurance or a bank guaranty acceptable to Agent in all respects.

          (j) to the extent WESCO Receivables, Borrower, any other Credit Party or any Subsidiary
thereof is liable for goods sold or services rendered by the applicable Account Debtor to WESCO
Receivables, Borrower, any other Credit Party or any Subsidiary thereof but only to the extent of
the potential offset;

          (k) that arises with respect to goods that are delivered on a bill-and-hold, cash-on-delivery
basis or placed on consignment, guaranteed sale or other terms by reason of which the payment by
the Account Debtor is or may be conditional;

          (l) that is in default; provided, that, without limiting the generality of the
foregoing, an Account shall be deemed in default upon the occurrence of any of the following:

               (i) the Account is not paid within the earlier of: 60 days following its due date or 150 days
following its original invoice date; provided, that, (x) the aggregate amount of
all such Accounts less than 150 days past their original invoice date but more than 90 days past
their original invoice date, which shall comprise Eligible Accounts plus (y) the aggregate amount
of all Accounts less than 150 days past their original invoice date but more than 90 days past
their original invoice date, which shall comprise Eligible Securitization Receivables, shall not
exceed for the sum of (x) plus (y), the 8% Cap in the aggregate at any time during the term of

Exhibit A-2

 

 

this Agreement (and in the event that the sum of (x) plus (y) shall exceed the 8% Cap then the entire
amount pursuant to clause (y), up to a maximum equal to the 8% Cap shall be included (i.e.,
the excess amount shall be deducted from clause (x) to achieve an amount equal to the 8% Cap.

               (ii) the Account Debtor obligated upon such Account suspends business, makes a general
assignment for the benefit of creditors or fails to pay its debts generally as they come due; or

               (iii) a petition is filed by or against any Account Debtor obligated upon such Account under
any bankruptcy law or any other United States federal or state or, with respect to Canada, Solvency
Law or any other foreign receivership, insolvency relief or other law or laws for the relief of
debtors;

          (m) that is the obligation of an Account Debtor if 50% or more of the Dollar amount of all
Accounts owing by that Account Debtor are ineligible under the other criteria set forth in
Section 1.6 of this Agreement or the definition of Eligible Securitization Receivables;

          (n) as to which the Lien thereon in favor of the financial institutions which are the
providers (i.e., lenders) under the Receivables Purchase Agreement is not a first priority
perfected Lien, and, provided, that, the Agent, on behalf of the Lenders, shall
have a first priority perfected Lien in all of the equity interests in, and intercompany notes
issued by, WESCO Receivables and no other Persons shall have any Lien on any of the equity
interests in, and intercompany notes issued by, WESCO Receivables;

          (o) as to which any of the applicable representations or warranties in the Loan Documents are
untrue;

          (p) to the extent such Account is evidenced by a judgment, Instrument or Chattel Paper;

          (q) to the extent such Account exceeds any credit limit established by Agent, in its
reasonable credit judgment;

          (r) to the extent that such Account, together with all other Accounts owing by such Account
Debtor and its Affiliates as of any date of determination exceed 10% of all Eligible Securitization
Receivables;

          (s) that is payable in any currency other than Dollars or Canadian Dollars (to the extent
properly converted into Dollars in the applicable Borrowing Base Certificate in accordance
herewith);

          (t) to the extent such Account includes goods and services or harmonized sales or other sales
taxes; or

          (u) that is otherwise unacceptable to Agent in its reasonable credit judgment.

Exhibit A-3

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