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WESCO International

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FY2012 Annual Report · WESCO International
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Leadership. Execution. Results.
2012 Annual Report

Income from  
Operations (EBIT) 1 
(in millions)

Diluted EPS 1

Free Cash Flow 1  
(as a percent of net income)

9
9
7
7
5
5
6
6
$
$

,
,

6
6
2
2
1
1
,
,
6
6
$
$

6
6
4
4
3
3
$
$

9
9
6
6
3
3
$
$

3
3
3
3
3
3
$
$

1
1
7
7
4
4

.
.

8
8
3
3
4
4

.
.

6
6
9
9
3
3

.
.

%
%
5
5
6
6
2
2

Net Sales  
(in millions)

1
1
1
1
1
1
,
,
6
6
$
$

4
4
6
6
0
0
5
5
$
$

,
,

4
4
2
2
6
6
4
4
$
$

,
,

1
1
1
1
2
2
$
$

0
0
8
8
1
1
$
$

6
6
4
4
2
2

.
.

0
0
5
5
2
2

.
.

%
%
0
0
2
2
1
1

%
%
7
7
9
9

%
%
8
8
1
1
1
1

12
12

%
%
8
8
6
6

11
11

08
08

09
09

10
10

11
11

12
12

08
08

09
09

10
10

11
11

12
12

08
08

09
09

10
10

11
11

12
12

08
08

09
09

10
10

FINANCIAL HIGHLIGHTS

Year Ended December 31 
(in millions except for Diluted EPS and ROIC) 

Net sales 

Income from operations (EBIT)1 

Net income attributable to WESCO International, Inc.1 

Diluted EPS1 

Diluted share count 

Free cash flow1 

Long-term debt, net of debt discount 
(including current portion and short-term debt) 

Stockholders’ equity1 

ROIC1 

2008 

2009 

2010 

2011 

2012 

$ 6,111   $ 4,624  $ 5,064 

$ 6,126  $ 6,579

346 

204 

4.71 

43.3 

245 

1,100 

755 

13.2% 

180 

105 

2.46 

42.7 

279 

692 

996 

8.1% 

211 

115 

2.50 

46.1 

112 

730 

1,149 

9.2% 

333  

196 

3.96 

49.6 

134 

649 

1,346 

11.9% 

369

224

4.38

51.1

265

1,735

1,576

11.3%

1 Non-GAAP financial metrics are defined and reconciled on pages 92 and 93. 2012 excludes the impact of a litigation charge.

COMPARISON OF 5 YEAR CUMULATIVE TOTAL RETURN
$100 invested on 12/31/07 in stock or index-including reinvestment of dividends. 
Fiscal year ending December 31.

TSR CAGR %

175

175

150

150

125

125

100

100

75

75

50

50

25

25

WESCO

WESCO

1 YEAR

1 YEAR

27.2

27.2

16.3

16.3

Performance  
Peer Group 2

Performance  
Peer Group 2

3 YEAR

3 YEAR

35.6

35.6

Russell 2000 Index

Russell 2000 Index

12.2

12.2

11.2

11.2

5 YEAR

5 YEAR

3.5

3.5

10 YEAR

10 YEAR

9.7

9.7

28.5

28.5

2007

2007

2008

2008

2009

2009

2010

2010

2011

2011

2012

2012

2 Performance Peer Group is defined on page 94.

WESCO
Russell 2000 Index

WESCO
Russell 2000 Index

1

To Our  
Shareholders,  
Employees,  
and Business  
Partners

Delivering Profitable Growth

Strengthening Our Global Franchise

2012 was a landmark year for our company.  As a result 
of playing offense and executing the growth strategy 
launched three years ago, we have strengthened our 
business and enhanced our position in the global 
marketplace.  We achieved record sales of $6.6 billion 
on 7% sales growth, improved operating margins to 
5.6%, increased earnings per share over 10%, and 
generated free cash flow in excess of net income.  We 
also completed four acquisitions during 2012, including 
EECOL Electric, the largest in our history.  

Over the last three years, we have doubled net income 
and generated a total shareholder return of 150%, 
exceeding the already healthy total shareholder return 
of over 10% CAGR since becoming a public company in 
1999.  We remain focused on our long-term objectives of 
growing sales faster than the market, delivering double-
digit annual net income growth, providing superior 
return on invested capital, and generating strong free 
cash flow throughout the economic cycle.  

I am pleased to report that the execution of our growth 
strategy is producing results that are meeting and 
exceeding these objectives.  The strength of our WESCO 
team, the diversity of our portfolio, and the operating 
leverage of our business are clearly reflected in the 
profitable growth of our company.  WESCO is now a 
bigger, stronger, faster, and more global company.

We look to play a consolidator role in the large, 
fragmented wholesale distribution industry in which 
we operate.  We have strengthened our portfolio by 
expanding our customer base, service capabilities, 
product lines, supplier relationships, and global 
footprint.  We now have commercial operations in  
18 countries and have shifted our business mix to higher 
growth end markets to provide greater balance through 
the business cycle.  Our vision of being a global leader 
of supply chain solutions is becoming a reality as we 
advance our growth engines and invest in our business 
organically and through acquisitions.  Last year,  
we opened 13 new branches in the United States  
and Canada, our second Lighting and Sustainability 
Solutions Center in Chicago, and our largest distribution 
center in Toronto.  

We also completed the acquisitions of EECOL Electric, 
Conney Safety Products, RS Electronics, and Trydor 
Industries, which further solidified our strong electrical 
core and added new product and service categories to 
our company.  Acquisitions have been a fundamental 
element of our growth strategy since we spun out of 
Westinghouse in 1994, and we have accelerated our 
pace over the last several years.  Since June 2010,  
we have completed eight acquisitions, which represent 
approximately $1.5 billion in revenues and over $1.50 
of EPS accretion.  We have a long track record of 
successfully identifying, closing, and integrating 
acquisitions, allowing us to consistently deliver on  
our acquisition commitments.  

2012 Annual Report    |    Leadership. Execution. Results.2

In 2013, cash redeployment will be directed primarily 
toward debt reduction and bringing our leverage 
ratio back within the targeted range.  The strong and 
consistent free cash flow generation characteristics 
of our business during all parts of the economic cycle 
support our ongoing acquisition strategy.  

Accelerating One WESCO

One WESCO is accelerating across our company and 
is being marked by new customer wins, expanded 
customer relationships, stronger supplier alliances, 
and increased collaboration by our WESCO associates.  
Through our One WESCO initiatives, we are providing 
customers with the solutions they need to meet  
their MRO, OEM, and capital project requirements.   
One WESCO integrates our portfolio of products, 
services, and supplier relationships into comprehensive 
supply chain solutions for our customers and  
their operations around the world.  Last year, our  
One WESCO successes included many new and 
expanded relationships with:

n   Global industrial companies for electrical and  

data communications products

n   Utilities for integrated supply applications 

n   Global EPC contractors for construction materials  

and capital project management 

n   Institutional customers and governmental agencies 

for general supplies and supply chain services 

Our customer engagement and value creation 
activities are at an all-time high as we work to improve 
the efficiency, effectiveness, and integrity of their 
operations and supply chains.  We expect the pace 
of outsourcing and consolidation in our industry to 
continue accelerating, which bodes well for large, 
disciplined, well-capitalized distributors like WESCO.

One WESCO progress in 2012 was also evidenced in the 
extraordinary effort demonstrated by our associates 
responding to Hurricane Sandy.  Supplier partners 
were engaged, resources were deployed, inventory 
was repositioned, and our transportation network was 
realigned as WESCO associates worked around the 
clock to serve our customers and help our employees 
respond to this devastating storm.  Over many years, we 

have built a reputation as the “extra effort people.” This 
is best demonstrated when we provide first responder 
disaster management and storm restoration services  
to our customers.  

Driving LEAN and Operational Excellence

We are celebrating the ten year anniversary of our 
LEAN journey this year.  The application of LEAN to 
the entire value chain, from our customers through to 
our suppliers, has been transformational.  Although 
ten years into this continuous improvement journey, 
we see more opportunities to improve our business 
and our customers’ operations and supply chains than 
ever before.  We are executing against a targeted set of 
operational excellence initiatives, including marketing 
leadership for demand creation, pricing and sourcing 
effectiveness for margin expansion, and sales and 
service management for customer satisfaction.  This 
is “what” we are focused on, whereas, LEAN addresses 
the way in which we do things.  It is “how” we execute.  
We’ve stayed the course, and LEAN is spreading 
organically throughout our company.  Our investment in 
a comprehensive multi-lingual LEAN training structure, 
which covers five levels of belt certification, is paying 
dividends and has resulted in a record number of kaizen 
events being conducted inside our company and with 
customers in 2012.  As we move forward, we recognize 
that we have only just begun our journey and consider 
LEAN to be a competitive differentiator in all that we do.

Investing in Talent and Sustaining  
Our High Performance Culture 

Our people are the foundation of our high performance 
and continuous improvement culture, and we have 
a highly committed, engaged, and diverse workforce 
that is focused on satisfying customers and finding 
a better way every day.  Talent management is about 
attracting, investing in, developing, and retaining the 
best global talent, and then building a high performance 
culture that inspires employee engagement.  In 
2012, we significantly increased our human resource 
investments for the third year in a row.  As a result,  
we expanded our training and development programs 
within WESCO University, increased our college 

WESCO International, Inc.3

To our customers, thank you for your business and the 
opportunity to serve you.  You have our commitment 
that we will listen, understand your needs and 
expectations, and do all that we can to provide you 
with superior value while we engage in improving the 
efficiency and effectiveness of your operations and 
supply chains.  

To our employees, thank you for your continued 
dedication and One WESCO teamwork.  You have our 
pledge to continue to provide a safe work environment 
where you can grow and succeed and be part of a 
winning One WESCO team.  

To our suppliers, thank you for your partnership and 
support.  Together, we will continue to combine our 
efforts and resources to provide industry-leading 
solutions for our customers.  

To our shareholders, thank you for your vote of 
confidence through your investments in WESCO.   
We’re in the best shape we’ve ever been, and we  
are committed to consistently generating growth  
in shareholder value.  As always, you will get our  
very best efforts.

 John J. Engel 
Chairman, President and Chief Executive Officer

recruiting efforts, expanded our mentoring  
program, and improved our employee reward and 
recognition programs.  

We also conducted our second global employee 
engagement survey, which reflected a significant 
increase in the overall engagement score and 
improvement in all categories measured.  We are 
pleased with these engagement survey results and are 
making good progress on our goal of being recognized 
as the employer of choice in the industries we serve.  

It is also encouraging to be recognized for our diversity 
efforts.  In 2012, we received the highest designation 
from 2020 Women on Boards for having at least 20% 
of our Board of Directors being comprised of women.  
In addition, the 2012 Catalyst Census of Fortune 500 
Women Executive Officers and Top Earners recognized 
us for having at least 25% women executive officers.  
We are confident that the investments we are making 
in our people provide us with the required capacity to 
continue to grow and strengthen our market position.  
All of our talent management efforts are based on the 
belief that our people are our sustainable competitive 
advantage.

Outlook and Commitments

Our financial objectives are unchanged and remain 
focused on shareholder value creation.  We also 
recognize that our consistent focus on sustainability, in 
the products and solutions we deliver to our customers 
and utilize in our own operations, creates shareholder 
value.  In 2013, we will issue our first Sustainability 
Report outlining key programs, progress to date, and 
our plan for further reducing our environmental footprint 
and helping our customers do the same.   

We are a bigger, stronger, faster, and more global 
Fortune 500 electrical and industrial wholesale 
distribution company, with a strong business portfolio 
and a high performance continuous improvement 
culture.  We are playing offense and delivering strong 
results by taking advantage of the growth opportunities 
that exist in our large, fragmented industry.  While we 
remain in a time of increased volatility and uncertainty, 
we continue to be laser focused on what we can control, 
that is our strategy, our investments, and our execution.  

2012 Annual Report    |    Leadership. Execution. Results. 
 
4

One WESCO integrates  

Communications
& Security

our portfolio of products, 

services, and supplier 

relationships into 

comprehensive supply  

chain management 

solutions for our  

customers and their 

operations around  

the world.

Global Accounts & 
Integrated Supply

Construction

Utility

Growth Engines

International

Government

Lighting & 
Sustainability

Acquisitions

Operational Excellence Initiatives

Sourcing Effectiveness

Sales Management 

Talent Management 

Pricing Effectiveness

Marketing Leadership 

Service Excellence 

WESCO International, Inc.5

LEAN: Celebrating 10 Years

WESCO began its LEAN journey 10 years ago with 
a pilot implementation at our branch in Charlotte, 
North Carolina. The initial focus was on optimizing the 
warehouse. A kaizen event was conducted to revise 
the layout of the facility, improve the material handling, 
and streamline the pick, pack, and ship process. Based 
on our success with this initial LEAN pilot, more than 
100 kaizen events were conducted in other WESCO 
branches during the first year alone.

In the early years, the LEAN implementation was 
expanded to address all aspects of the business, from 
front-end sales and marketing to back-end product 
delivery, customer service, and support, including 
administrative processes. The goal was to find ways 
to add the most value and eliminate the most waste 

using the Plan, Do, Check, Act continuous improvement 
methodology.

Several years ago, in response to the global economic 
downturn, WESCO introduced a value creation program 
for our customers using LEAN. A series of value-add 
solutions were developed and are being applied to our 
customers’ operations and supply chains using the 
four-step process below. Our customer-facing LEAN 
applications and value-add solutions are designed to 
specifically address their goals of reducing operating 
costs, improving efficiencies, eliminating waste, and 
enhancing safety and sustainability.

As we enter the next 10 years of our journey, our vision 
for WESCO and our customers is to move from “doing 
LEAN” to “being LEAN.”

WESCO and the customer  
meet to build a clear definition  
of goals and requirements  
(voice of the customer). 

Design and apply 
customized solutions to 
maximize productivity and 
value for the customer. 

LEAN Is the WESCO Way

n    The majority of our WESCO employees  

 are trained in LEAN.

n    Leaders in WESCO serve as coaches  

 and facilitators.

n   Our top LEAN leaders and practitioners  

are recognized annually.

n    In 2012, teams of talented WESCO LEAN 
 professionals conducted over 1,200 value 
 creation events at customer facilities.

Align and prioritize value-add 
solutions to meet customer 
requirements and prepare for  
a Search for Savings event. 

Engage the customer team  
in an onsite event to conduct 
a process walk and to identify 
improvement opportunities. 

New WESCO Charlotte branch  
opened in 2010

n  113,000 sq. ft. facility 
n  LEAN operations 
n  LEED® Gold Certified

2012 Annual Report    |    Leadership. Execution. Results.6 WESCO International, Inc.

OVER 475 LOCATIONS AROUND THE WORLD

CANADA

SCOTLAND

ENGLAND

BELGIUM

POLAND

U.S.A.

SPAIN

MEXICO

ECUADOR

PERU

CHILE

BRAZIL

ANGOLA

ARGENTINA

CHINA

UAE

SINGAPORE

AUSTRALIA

CORPORATE PROFILE

WESCO International, Inc. (NYSE: WCC), a publicly traded Fortune 500 company headquartered  

in Pittsburgh, Pennsylvania, is a leading provider of electrical, industrial, and communications 

maintenance, repair and operating (MRO) and original equipment manufacturers (OEM) products, 

construction materials, and advanced supply chain management and logistic services. 2012 

annual sales were approximately $6.6 billion. The company employs approximately 9,000 people, 

maintains relationships with over 18,000 suppliers, and serves over 65,000 active customers 

worldwide. Customers include industrial and commercial businesses, contractors, government 

agencies, institutions, telecommunications providers and utilities. WESCO operates nine fully 

automated distribution centers and approximately 475 full-service branches in North America  

and around the world, providing a local presence for customers and a global network to serve 

multi-location businesses and multi-national corporations.

7

UNITED STATES SECURITIES AND EXCHANGE COMMISSION 
WASHINGTON, D.C. 20549

FORM 10-K
(Mark One)
[x]  ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934
For the fiscal year ended December 31, 2012
or
[  ]  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 
For the transition period from ___ to ___

Commission file number 001-14989 
WESCO INTERNATIONAL, INC. 
(Exact name of registrant as specified in its charter)

Delaware 
(State or other jurisdiction of incorporation or organization) 

25-1723342 
 (I.R.S. Employer Identification No.)

225 West Station Square Drive 
Suite 700 
Pittsburgh, Pennsylvania 
(Address of principal executive offices)

15219 

(Zip Code) 

(412) 454-2200 
(Registrant’s telephone number, including area code)

SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:
Title of Class 
Common Stock, par value $.01 per share 

Name of Exchange on which registered 
New York Stock Exchange

SECURITIES REGISTERED PURSUANT TO SECTION 12(g) OF THE ACT: NONE

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.  
YES [X]  NO [  ]

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act.  
YES [  ]  NO [X]

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the 
Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was 
required to file such reports), and (2) has been subject to such filing requirements for at least the past 90 days.  
YES [X]  NO [  ]

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, 
and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated 
by reference in Part III of this Form 10-K or any amendment to this Form 10-K. [X]

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, 
every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the 
preceding 12 months (or for such shorter period that the registrant was required to submit and post such file). 
YES [X]  NO [  ]

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a 
smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer,” and “smaller reporting 
company” in Rule 12b-2 of the Exchange Act (Check one):

LARGE ACCELERATED FILER [X]  ACCELERATED FILER [  ]  NON-ACCELERATED FILER [  ]  SMALLER REPORTING COMPANY [  ]

(Do not check if a smaller reporting company)

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). YES [  ]  NO [X]

The registrant estimates that the aggregate market value of the voting shares held by non-affiliates of the registrant was 
approximately $2,497.8 million as of June 30, 2012, the last business day of the registrant’s most recently completed 
second fiscal quarter, based on the closing price on the New York Stock Exchange for such stock.

As of February 26, 2013, 44,087,890 shares of Common Stock, par value $.01 per share, of the registrant were outstanding.

DOCUMENTS INCORPORATED BY REFERENCE:
Part III of this Form 10-K incorporates by reference portions of the registrant’s Proxy Statement for its 2013 Annual 
Meeting of Stockholders.

2012 Annual Report 
 
 
 
 
 
 
 
8

TABLE OF CONTENTS

PART I

Item 1. 
Item 1A. 
Item 1B. 
Item 2. 
Item 3. 
Item 4. 

PART II

Item 5. 
Item 6. 
Item 7. 
Item 7A. 
Item 8. 
Item 9. 
Item 9A. 
Item 9B. 

PART III

Item 10. 
Item 11. 
Item 12. 
Item 13. 
Item 14. 

PART IV

Item 15. 
Signatures 

Exhibits

Exhibit 21.1 
Exhibit 23.1 
Exhibit 31.1 
Exhibit 31.2 
Exhibit 32.1 
Exhibit 32.2 

Business 
Risk Factors 
Unresolved Staff Comments 
Properties 
Legal Proceedings 
Mine Safety Disclosures 

9
18
23
23
24
24

Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities 25
26
Selected Financial Data 
27
Management’s Discussion and Analysis of Financial Condition and Results of Operations 
39
Quantitative and Qualitative Disclosures about Market Risks 
40
Financial Statements and Supplementary Data 
79
Changes in and Disagreements with Accountants on Accounting and Financial Disclosure 
79
Controls and Procedures 
79
Other Information 

Directors, Executive Officers and Corporate Governance 
Executive Compensation 
Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters 
Certain Relationships and Related Transactions, and Director Independence 
Principal Accountant Fees and Services 

Exhibits and Financial Statement Schedule 

80
80
81
81
81

82
86

87
88
89
90
91
91

WESCO International, Inc. 
 
 
 
 
 
 
9

PART I

Item 1. Business.

In this Annual Report on Form 10-K, “WESCO” refers to WESCO International, Inc., and its subsidiaries and its 
predecessors unless the context otherwise requires. References to “we,” “us,” “our” and the “Company” refer to WESCO 
and its subsidiaries.

THE COMPANY

WESCO International, Inc. (“WESCO International”), incorporated in 1993 and effectively formed in February 1994 upon 
acquiring a distribution business from Westinghouse Electric Corporation, is a leading North American based distributor of 
products and provider of advanced supply chain management and logistics services used primarily in industrial, 
construction, utility and commercial, institutional and government (“CIG”) markets. We are a leading provider of electrical, 
industrial, and communications maintenance, repair and operating (“MRO”) and original equipment manufacturers (“OEM”) 
products, construction materials, and advanced supply chain management and logistics services. Our primary product 
categories include general electrical and industrial supplies, wire, cable and conduit, data and broadband communications, 
power distribution equipment, lighting and lighting control systems, control and automation, motors, and safety. 

We serve over 65,000 active customers globally through approximately 475 full service branches and nine distribution 
centers located in the United States, Canada, and Mexico with offices in 15 additional countries. At the end of 2012, we had 
approximately 9,000 employees worldwide. We distribute over 1,000,000 products, grouped into six categories, from more 
than 18,000 suppliers utilizing a highly automated, proprietary electronic procurement and inventory replenishment system. 

In addition, we offer a comprehensive portfolio of value-added capabilities, which includes supply chain management, 
logistics and transportation, procurement, warehousing and inventory management, as well as kitting, limited assembly  
of products and system installation. Our value-added capabilities, extensive geographic reach, experienced workforce  
and broad product and supply chain solutions have enabled us to grow our business and establish a leading position in 
North America.

In December 2012, we completed the acquisition of EECOL Electric Corporation (“EECOL”) with approximately $0.9 billion 
in annual sales, 57 locations across Canada and 20 in South America, and more than 20,000 customers.

INDUSTRY OVERVIEW

We operate in highly fragmented markets that include thousands of small regional and locally based, privately owned 
competitors. According to one industry publication, in 2011, the latest year for which market share data is available, the 
five largest North American electrical distributors, including WESCO, accounted for only approximately 30% of all industry 
sales in North America. Our global account, integrated supply and OEM programs provide customers with regional, 
national, North American and global supply chain consolidation opportunities. The demand for these programs has grown 
in recent years, driven primarily by the desire of companies to reduce operating expenses by outsourcing operational and 
administrative functions associated with the procurement, management and utilization of MRO supplies and OEM 
components. We believe that significant opportunities exist for further expansion of these programs. The total potential in 
the United States for purchases of MRO and OEM supplies and services across all industrial distribution market segments 
and channels is currently estimated to be greater than $500 billion per an industry publication.

According to management estimates, electrical distribution industry sales have grown at an approximately 5% compound 
annual rate over the past 20 years. This expansion has been driven by general economic growth, increased price levels for 
key commodities, increased use of electrical products in businesses and industries, new products and technologies, the 
proliferation of enhanced building and safety codes, and use of the internet. Wholesale distributors have also grown as a 
result of a long-term shift in procurement preferences that favor the use of distributors over direct relationships with 
manufacturers. It is estimated that approximately 75% of electrical products manufactured in the United States are 
delivered to the end user through the distribution channel. 

2012 Annual Report10

MARKETS AND CUSTOMERS

We have a large base of over 65,000 active customers across a diverse set of end markets. Our top ten customers 
accounted for approximately 10% of our sales in 2012. No one customer accounted for more than 3% of our sales in 2012.

The following table outlines our sales breakdown by end market:

Year Ended December 31, 

(percentages based on total sales) 

Industrial 
Construction 
Utility 
Commercial, Institutional and Governmental 

2012 

2011 

2010

44% 
32% 
12% 
12% 

43% 
35% 
11% 
11% 

42%
38%
13%
7%

Industrial. Sales to industrial customers of MRO, OEM, and construction products and services accounted for 
approximately 44% of our sales in 2012, compared to 43% in 2011. Industrial sales product categories include a broad 
range of electrical equipment and supplies as well as lubricants, pipe, valves, fittings, fasteners, cutting tools, power 
transmission, and safety products. In addition, OEM customers require a reliable supply of assemblies and components to 
incorporate into their own products as well as value-added services such as supplier consolidation, design and technical 
support, just-in-time supply and electronic commerce, and supply chain management.

Construction. Sales of electrical and communications products to contractors accounted for approximately 32% of our 
sales in 2012, compared to 35% in 2011. Customers include a wide array of contractors and engineering, procurement 
and construction firms for industrial, infrastructure, commercial and data and broadband communications projects. 
Specific applications include projects for refineries, railways, hospitals, wastewater treatment facilities, data centers, 
security installations, offices, and modular and mobile homes. In addition to a wide array of electrical products, we offer 
contractors communications products for projects related to IT/network modernization, physical security upgrades, 
broadband deployments, network security, and disaster recovery.

Utility. Sales to utilities and utility contractors accounted for approximately 12% of our sales in 2012, compared to 11%  
in 2011. Customers include large investor-owned utilities, rural electric cooperatives, municipal power authorities and 
contractors that serve these customers. We provide our utility customers with products and services to support the 
construction and maintenance of their generation, transmission and distribution systems along with an extensive range  
of products that meet their power plant MRO and capital projects needs. Materials management and procurement 
outsourcing arrangements are also important in this market, as cost pressures and deregulation have caused utility 
customers to seek improvements in the efficiency and effectiveness of their supply chains.

Commercial, Institutional and Governmental (“CIG”). Sales to CIG customers accounted for approximately 12% of our 
sales in 2012 compared to 11% in 2011. Customers include schools, hospitals, property management firms, retailers and 
federal, state and local government agencies of all types, including federal contractors.

BUSINESS STRATEGY

Our goal is to grow organically at a rate greater than that of our industry while also making accretive acquisitions. Our 
organic growth strategy leverages our existing strengths and focuses on initiatives to enhance our sales and customer 
service, develop new end markets, broaden our product and service offerings and expand our geographic footprint. We 
utilize LEAN continuous improvement initiatives on a company-wide basis to deliver operational excellence and improve 
productivity. We also extend our LEAN initiatives to customers to improve the efficiency and effectiveness of their 
operations and supply chains. In addition, we seek to generate a distinct competitive advantage through talent 
management and employee development processes and programs.

We have identified certain growth engines that we believe provide substantial opportunities for above market growth. These 
growth engines include business models, selected end markets and product categories. The end markets are construction, 
government, international, and utility. The product categories are communications and security products, and lighting and 

WESCO International, Inc. 
 
11

sustainability. We believe our business models of global accounts and integrated supply programs also provide significant 
growth opportunities and are applicable to any of our served end markets. We have focused our growth efforts on these 
end markets, product categories, and business models as discussed below.

Grow Our Global Account Customer Relationships and Base. Our typical global account customer is a Fortune 1000 
industrial or commercial company, a large utility, a major contractor, or a governmental or institutional customer, in each 
case with multiple locations. Our global account program is designed to provide customers with supply chain management 
services and cost reductions by coordinating and standardizing activity for MRO materials and OEM direct materials across 
their multiple locations utilizing our broad geographic footprint and our largely integrated information technology platform. 
Comprehensive implementation plans are managed at the local, national and international levels to prioritize activities, 
identify key performance measures, and track progress against objectives. We involve our preferred suppliers early in the 
implementation process, where they can contribute expertise and product knowledge to accelerate program 
implementation and achievement of cost savings and process improvements.

Over the past ten years, growth from our global account programs has been a material component of our organic growth 
strategy. Our objective is to continue to increase revenue from our global account programs by expanding our product and 
service offerings to existing global account customers and expanding our reach to serve additional customer locations. We 
also plan on expanding our customer base by capitalizing on our industry expertise and supply chain optimization 
capabilities.

Extend Our Leadership Position in Integrated Supply Programs. Our integrated supply programs are focused on 
customers in the industrial, utility, construction and CIG markets. We combine our personnel, product and distribution 
expertise, electronic commerce technologies, and service capabilities with the customer’s own internal resources to meet 
particular service requirements. Each integrated supply program is configured to reduce the number of suppliers, total 
procurement costs, and administrative expenses as well as improve operating controls. Our integrated supply programs 
focus on supply chain optimization and replace the traditional multi-vendor, resource-intensive procurement process with  
a single, outsourced, automated process. Our services range from timely product delivery to an outsourced procurement 
function. We believe that large customers will increasingly seek to utilize such services to consolidate and manage their 
MRO and OEM supply chains. We plan to expand our position as an integrated supply services leader in North America by 
building upon established relationships within our large customer base and premier supplier network, and extending our 
services to additional customers and locations around the world.

Expand Our Relationships with Construction Contractors. Our construction sales are focused on contractors, particularly 
those involved with healthcare, government facilities, enterprise data communications, telecommunication and energy and 
government infrastructure-related projects. We believe that significant cross selling opportunities exist for electrical and 
communications products and we intend to use our global account and integrated supply programs, LEAN initiatives and 
project management expertise to capitalize on construction business opportunities.

Expand Products and Services for Utilities. Our utility customers continue to focus on improving grid reliability as well  
as improving their operating efficiency and reducing costs. As a result, we anticipate an increase in distribution grid 
improvement and transmission expansion projects as well as the adoption of integrated supply programs. Accordingly,  
we are focused on expanding our logistical and project services, integrated supply services and project management 
programs to increase our scope of supply on distribution grid, generation and other energy projects, including alternative 
energy projects.

Expand International Operations. We seek to capitalize on existing and emerging international market opportunities 
through local business development and the expansion of our global product and service platforms while taking advantage 
of acquisitions that expand our global footprint. We target large, growing markets where we can leverage our value 
proposition and relationships with key customers and suppliers. We believe this strategy of working with well-developed 
customer and supplier relationships significantly reduces risk and provides the opportunity to establish profitable business. 

2012 Annual Report12

Our priorities are focused on global vertical markets including energy, mining and metals, manufacturing, and 
infrastructure, as well as key product categories such as communications and security. Additionally, we are extending our 
procurement outsourcing and integrated supply programs following large, existing customers into international markets.

Grow Our Communications Products Position. Over the last several years, there has been a convergence of electrical and 
data communications contractors. Our ability to provide both electrical and communications products and services lines as 
well as automation, electromechanical, non-electrical MRO, physical security and utility products has presented cross 
selling opportunities across WESCO. Communications products have continued to be in demand due to networking 
upgrades, low voltage security investments, data center upgrades and increasing broadband and telecommunications 
utilization.

Grow Lighting System and Sustainability Sales. Lighting applications are undergoing significant innovation driven by 
energy efficiency and sustainability trends. We expanded our sales team and marketing initiatives and will continue to add 
resources in this product category and in product and service offerings to provide overall energy solutions. We opened our 
second Lighting & Sustainability Solutions Center to increase the customer’s knowledge in lighting technology and solutions 
that contribute to an environmentally responsible future.

Pursue Strategic Acquisitions. In 2012, we acquired four businesses: RS Electronics (“RS”), Trydor Industries (Canada) 
Ltd. (“Trydor”), Conney Safety Products, LLC (“Conney”), and EECOL. We believe that the highly fragmented nature of the 
electrical and industrial distribution industry will continue to provide acquisition opportunities. We expect that any future 
acquisitions will be financed with internally generated funds, additional debt and/or the issuance of equity securities.

Drive Operational Excellence. LEAN continuous improvement is a set of company-wide strategic initiatives to increase 
efficiency and effectiveness across the entire business enterprise, including sales, operations and administrative processes. 
The basic principles behind LEAN are to systematically identify and implement improvements through simplification, 
elimination of waste and reduction in errors. We apply LEAN in our distribution environment, and develop and deploy 
numerous initiatives through the Kaizen approach targeting improvements in sales, margin, warehouse operations, 
transportation, purchasing, inventory, accounts receivable, accounts payable, and administrative processes. Our objective 
is to continue to implement LEAN initiatives across our business enterprise and to extend LEAN services to our customers 
and suppliers.

Talent Management. Our strategy is to develop a distinct competitive advantage through talent management and employee 
engagement and development. We believe our ability to attract, develop and retain diverse human capital is imperative to 
ongoing business success. We improve workforce capability through various programs and processes that identify, recruit, 
develop and promote our talent base. Significant enhancements in these programs have been made over the last several 
years, and we expect to continue to refine and enhance these programs in the future.

WESCO International, Inc.13

PRODUCTS AND SERVICES

Products

Our network of branches and distribution centers stock more than 250,000 unique product stock keeping units and we 
provide customers with access to more than 1,000,000 different products. Each branch tailors its inventory to meet the 
needs of its local customers.

Representative product categories and associated product lines that we offer include:

•	 General and Industrial Supplies. Wiring devices, fuses, terminals, connectors, boxes, enclosures, fittings, lugs, 
terminations, tape, splicing and marking equipment, tools and testers, safety and security, personal protection, 
abrasives, cutting tools, tapes, consumables, fasteners, janitorial and other MRO supplies;

•	 Wire, Cable and Conduit. Wire, cable, raceway, metallic and non-metallic conduit;

•	 Data and Broadband Communications. Structured cabling systems, broadband products, low voltage specialty 

systems, specialty wire and cable products, equipment racks and cabinets, access control, alarms, cameras, paging 
and voice solutions;

•	 Power Distribution Equipment. Circuit breakers, transformers, switchboards, panel boards, metering products and 

busway products;

•	 Lighting and Controls. Lamps, fixtures, ballasts and lighting control products; and

•	 Control, Automation and Motors. Motor control devices, drives, surge and power protection, relays, timers, 

pushbuttons, operator interfaces, switches, sensors, and interconnects.

The following table sets forth sales information about our sales by product category:

Year Ended December 31, 

(percentages based on total sales) 

General and Industrial Supplies 
Wire, Cable and Conduit 
Data and Broadband Communications 
Power Distribution Equipment 
Lighting and Controls 
Control, Automation and Motors 

2012 

2011 

2010

36% 
17% 
15% 
13% 
9% 
10% 

34% 
18% 
17% 
11% 
9% 
11% 

35%
18%
15%
12%
10%
10%

We purchase products from a diverse group of more than 18,000 suppliers. In 2012, our ten largest suppliers accounted 
for approximately 31% of our purchases. Our largest supplier accounted for approximately 12% of our total purchases.  
No other supplier accounted for more than 5% of our total purchases.

Our supplier relationships are important to us, providing access to a wide range of products, technical training, and sales 
and marketing support. We have over 300 preferred supplier arrangements and purchase over 60% of our products 
pursuant to these arrangements. Consistent with industry practice, most of our agreements with suppliers, including both 
distribution agreements and preferred supplier agreements, are terminable by either party on 60 days notice or less.

2012 Annual Report 
 
14

Services

As part of our overall offering, we provide customers a comprehensive portfolio of value added services which includes 
more than 50 value add solutions in 11 categories including construction, e-business, energy, engineering services, green 
and sustainability, production support, safety and security, supply chain optimization, training, and working capital. These 
solutions are designed to address our customer’s business needs through:

•	 Providing technical support for manufacturing process improvements;

•	 Implementing inventory optimization programs, including just-in-time delivery and vendor managed inventory;

•	 Participating in joint cost savings teams;

•	 Assigning our employees as on-site support personnel;

•	 Consulting and recommending energy-efficient product upgrades; and

•	 Offering safety and product training for customer employees.

COMPETITIVE STRENGTHS

We compete directly with global, national, regional and local distributors of electrical and other industrial supplies. 
Competition is primarily focused on the local service area, and is generally based on product line breadth, product 
availability, service capabilities and price. We also compete with buying groups formed by smaller distributors to increase 
purchasing power and provide some cooperative marketing capability. While increased buying power may improve the 
competitive position of buying groups locally, we believe it is difficult to coordinate a diverse ownership group to provide 
consistent quality products and services across multiple geographic regions. Although certain Internet-based procurement 
service companies, auction businesses and trade exchanges remain in the marketplace, the impact on our business from 
these competitors has not been significant to date.

Market Leadership. Our ability to manage complex global supply chains, multi-site facility maintenance programs and 
construction projects that require special sourcing, technical advice, logistical support and locally based service has 
enabled us to establish a strong presence in our served markets. We have utilized these skills to generate significant 
revenues in a broad range of industries with intensive use of electrical and industrial products.

Broad Product Offering and Value-added Services. We provide a wide range of products, services and procurement 
solutions, which draw on our product knowledge, supply and logistics expertise, system capabilities and supplier 
relationships to enable our customers to maximize productivity, minimize waste, improve efficiencies, reduce costs and 
enhance safety. Our broad product offering and stable source of supply enables us to consistently meet virtually all of a 
customer’s capital project, product, MRO and OEM requirements.

Extensive Distribution Network. We operate approximately 475 geographically dispersed branch locations and nine 
distribution centers (five in the United States and four in Canada). Our distribution centers add value for our customers, 
suppliers, and branches through the combination of a broad and deep selection of inventory, online ordering, next-day 
shipment and central order handling and fulfillment. Our distribution center network reduces the lead-time and cost of 
supply chain activities through automated replenishment and warehouse management systems and economies of scale in 
purchasing, inventory management, administration and transportation. This extensive network, which would be difficult 
and expensive to duplicate, provides us with a distinct competitive advantage and allows us to:

•	 Enhance localized customer service, technical support and sales coverage;

•	 Tailor individual branch products and services to local customer needs; and

•	 Offer multi-site distribution capabilities to large customers and global accounts.

Low Cost Operator. Our competitiveness has been enhanced by our consistent favorable operating cost position, which is 
based on use of LEAN, strategically-located distribution centers, and purchasing economies of scale. As a result of these 
factors and others, our operating cost as a percentage of sales is one of the lowest in our industry. Our selling, general and 
administrative expenses as a percentage of revenues for 2012 were 14.6%.

WESCO International, Inc.15

GEOGRAPHY

Our network of branches and distribution centers are located primarily in North America. We attribute revenues from 
external customers to individual countries on the basis of the point of sale. The following table sets forth information about 
us by geographic area:

Net Sales  
Year Ended December 31,  

Long-Lived Assets 
December 31,

2012 

2011 

2010 

2012 

2011 

2010

(In thousands)

United States  

$  5,215,849  79% 

$  4,994,641  82% 

$  4,198,420  83% 

$ 144,947 

$ 131,988 

$ 117,768

Canada 

Mexico 

Subtotal 

  1,084,109  17% 

900,551  15% 

682,415  13% 

  100,366 

  24,609 

  12,446

92,370  1% 

84,871  1% 

51,413  1% 

532 

573 

641

North American Operations  6,392,328   

  5,980,063 

  4,932,248 

  245,845 

  157,170 

  130,855

Other Foreign  
Total U.S. and Foreign 

186,973  3% 

145,655  2% 

131,614  3% 

$  6,579,301   

$  6,125,718 

$  5,063,862 

6,049 
$ 251,894 

771 
$ 157,941 

325
$ 131,180

United States. To serve our customers in the United States, we operate a network of approximately 325 branches 
supported by five distribution centers located in Pennsylvania, Nevada, Mississippi, Wisconsin, and Arkansas. Sales in the 
United States represented approximately 79% of our total sales in 2012. According to the Electrical Wholesaling Magazine, 
the U.S. electrical wholesale distribution industry had estimated sales of approximately $91 billion in 2012.

Canada. To serve our Canadian customers, we operate a network of approximately 105 branches in nine provinces. Branch 
operations are supported by four distribution centers located in Edmonton, Montreal, Toronto, and Vancouver. Sales in 
Canada represented approximately 17% of our total sales in 2012. Total annual electrical industry sales in Canada are 
approximately $6.9 billion through December 31, 2012 according to a recent publication.

Mexico. We have 10 branch locations in Mexico. Our headquarters in Tlalnepantla Estado de Mexico operates similar to a 
distribution center to enhance the service capabilities of the local branches. Sales in Mexico represented approximately  
1% of our total sales in 2012.

Other Foreign. We sell to global customers through export sales offices located in Miami, Houston, Pittsburgh, Montreal, 
and Calgary within North America and sales offices and branch operations in various international locations. Sales from 
other foreign locations represented approximately 3% of our total sales in 2012. Our branches in Aberdeen, Scotland and 
Manchester, England support sales efforts in Europe and the Middle East. We have a branch in Singapore to support our 
sales to Asia, a branch in Perth to serve customers in Australia, and a branch near Shanghai to serve customers in China 
along with operations in 10 additional countries. The EECOL acquisition expanded WESCO’s footprint into South America. 
All of our international locations have been established to serve our growing list of customers with global operations.

INTELLECTUAL PROPERTY

We currently have trademarks, patents and service marks registered with the U.S. Patent and Trademark Office. The 
registered trademarks and service marks include: “WESCO®”, our corporate logo and the running man logo. In addition, 
trademarks, patents, and service mark applications have been filed in various foreign jurisdictions, including Canada, 
Mexico, the United Kingdom, Singapore, China, Hong Kong, Thailand and the European Community.

ENVIRONMENTAL MATTERS

Our facilities and operations are subject to federal, state and local laws and regulations relating to environmental protection 
and human health and safety. Some of these laws and regulations may impose strict, joint and several liabilities on certain 
persons for the cost of investigation or remediation of contaminated properties. These persons may include former, current 
or future owners or operators of properties and persons who arranged for the disposal of hazardous substances. Our owned 
and leased real property may give rise to such investigation, remediation and monitoring liabilities under environmental 
laws. In addition, anyone disposing of certain products we distribute, such as ballasts, fluorescent lighting and batteries, 
must comply with environmental laws that regulate certain materials in these products.

2012 Annual Report  
  
 
 
 
 
 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
16

We believe that we are in compliance, in all material respects, with applicable environmental laws. As a result, we do not anticipate 
making significant capital expenditures for environmental control matters either in the current year or in the near future.

SEASONALITY

Our operating results are not significantly affected by seasonal factors. Sales during the first and fourth quarters are 
generally 1-3% below the sales of the second and third quarters, due to a reduced level of activity during the winter 
months of November through February. Sales typically increase beginning in March, with slight fluctuations per month 
through October. During periods of economic expansion or contraction our sales by quarter have varied significantly from 
this seasonal pattern.

WEBSITE ACCESS

Our Internet address is www.wesco.com. Information contained on our website is not part of, and should not be construed 
as being incorporated by reference into, this Annual Report on Form 10-K. We make available free of charge under the 
“Investors” heading on our website our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on 
Form 8-K and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange 
Act of 1934, as amended (the “Exchange Act”), as well as our Proxy Statements, as soon as reasonably practicable after 
such documents are electronically filed or furnished, as applicable, with the Securities and Exchange Commission (the 
“SEC”). You also may read and copy any materials we file with the SEC at the SEC’s Public Reference Room at 100 F 
Street, NE, Washington, DC 20549-0213. You may obtain information on the operation of the Public Reference Room by 
calling the SEC at 1-800-SEC-0330. The SEC maintains an Internet site at www.sec.gov that contains reports, proxy and 
information statements and other information regarding issuers like us who file electronically with the SEC.

In addition, our charters for our Executive Committee, Nominating and Governance Committee, Audit Committee and 
Compensation Committee, as well as our Independence Standards, our Governance Guidelines and our Code of Business 
Ethics and Conduct for our Directors, officers and employees, are all available on our website in the “Corporate 
Governance” link under the “Investors” heading.

FORWARD-LOOKING INFORMATION

This Annual Report on Form 10-K contains various “forward-looking statements” within the meaning of the Private 
Securities Litigation Reform Act of 1995. These statements involve certain unknown risks and uncertainties, including, 
among others, those contained in Item 1, “Business,” Item 1A, “Risk Factors,” and Item 7, “Management’s Discussion 
and Analysis of Financial Condition and Results of Operations.” When used in this Annual Report on Form 10-K, the words 
“anticipates,” “plans,” “believes,” “estimates,” “intends,” “expects,” “projects,” “will” and similar expressions may identify 
forward-looking statements, although not all forward-looking statements contain such words. Such statements, including, 
but not limited to, our statements regarding business strategy, growth strategy, competitive strengths, productivity and 
profitability enhancement, competition, new product and service introductions and liquidity and capital resources are 
based on management’s beliefs, as well as on assumptions made by and information currently available to, management, 
and involve various risks and uncertainties, some of which are beyond our control. Our actual results could differ materially 
from those expressed in any forward-looking statement made by us or on our behalf. In light of these risks and 
uncertainties, there can be no assurance that the forward-looking information will in fact prove to be accurate. We have 
undertaken no obligation to publicly update or revise any forward-looking statements, whether as a result of new 
information, future events or otherwise.

WESCO International, Inc.17

EXECUTIVE OFFICERS

Our executive officers and their respective ages and positions as of February 28, 2013, are set forth below.

Name 
John J. Engel 
Stephen A. Van Oss 
Daniel A. Brailer 
Allan A. Duganier 
Timothy A. Hibbard 
Diane E. Lazzaris 
Kenneth S. Parks 
Kimberly G. Windrow 

Age 
51 
58 
55 
57 
56 
46 
49 
55 

Position
Chairman, President and Chief Executive Officer
Senior Vice President and Chief Operating Officer
Vice President, Investor Relations and Corporate Affairs
Director of Internal Audit
Vice President and Corporate Controller
Vice President, Legal Affairs
Vice President and Chief Financial Officer
Vice President, Human Resources

Set forth below is biographical information for our executive officers listed above.

John J. Engel was appointed Chairman of the Board in May 2011 and has served as President and Chief Executive Officer 
since September 2009. Previously, Mr. Engel served as our Senior Vice President and Chief Operating Officer from 2004  
to September 2009. From 2003 to 2004, Mr. Engel served as Senior Vice President and General Manager of Gateway, Inc. 
From 1999 to 2002, Mr. Engel served as an Executive Vice President and Senior Vice President of Perkin Elmer, Inc.  
From 1994 to 1999, Mr. Engel served as a Vice President and General Manager of Allied Signal, Inc. and held various 
engineering, manufacturing and general management positions at General Electric Company from 1985 to 1994. Mr. Engel 
is also a director of United States Steel Corporation, an integrated steel producer.

Stephen A. Van Oss has served as Senior Vice President and Chief Operating Officer since September 2009. From 
February 2012 to June 2012, he also served as the Company’s Chief Financial Officer on an interim basis. Previously,  
Mr. Van Oss served as our Senior Vice President and Chief Financial and Administrative Officer from 2004 to September 
2009. From 2000 to 2004, he served as our Vice President and Chief Financial Officer. From 1997 to 2000, Mr. Van Oss 
served as our Director, Information Technology and, in 1997, as our Director, Acquisition Management. From 1995 to 
1996, Mr. Van Oss served as Chief Operating Officer and Chief Financial Officer of Paper Back Recycling of America, Inc. 
Mr. Van Oss serves as a director of Cooper-Standard Holdings Inc. and as the chairman of its audit committee. He also 
serves as a trustee of Robert Morris University and is chairman of its finance committee and is a member of its  
government committee.

Daniel A. Brailer has served as our Vice President, Investor Relations and Corporate Affairs since February 2012. From 
February 2011 to February 2012, he served as our Vice President, Treasurer, Investor Relations and Corporate Affairs. 
From 2006 to February 2011, he served as our Vice President, Treasurer and Investor Relations. From 1999 to 2006,  
he served as our Treasurer and Director of Investor Relations. Prior to joining the Company, Mr. Brailer served in various 
positions at Mellon Financial Corporation, most recently as Senior Vice President.

Allan A. Duganier has served as our Director of Internal Audit since 2006. From 2001 to 2006, Mr. Duganier served as our 
Corporate Operations Controller and, from 2000 to 2001, as our Industrial/Construction Group Controller.

Timothy A. Hibbard was appointed as our Vice President and Corporate Controller in February 2012. From 2006 to 
February 2012, he served as our Corporate Controller. From 2002 to 2006, he served as Corporate Controller at Kennametal 
Inc. From 2000 to 2002, Mr. Hibbard served as Director of Finance of Kennametal’s Advanced Materials Solutions Group, 
and, from 1998 to 2000, he served as Controller of Greenfield Industries, Inc., a subsidiary of Kennametal Inc.

Diane E. Lazzaris has served as our Vice President, Legal Affairs since February 2010. From February 2008 to February 
2010, Ms. Lazzaris served as Senior Vice President – Legal, General Counsel and Corporate Secretary of Dick’s Sporting 
Goods, Inc. From 1994 to February 2008, she held various corporate counsel positions at Alcoa Inc., most recently as 
Group Counsel to a group of global businesses.

2012 Annual Report18

Kenneth S. Parks has served as our Vice President and Chief Financial Officer since June 2012. From April 2008 to 
February 2012, he served as Vice President of Finance of United Technologies Corporation for their global Fire and 
Security business. From 2005 to April 2008, he served as Director of Investor Relations of United Technologies 
Corporation. He began his career in public accounting with Coopers & Lybrand.

Kimberly G. Windrow has served as our Vice President, Human Resources since August 2010. From 2004 until July 2010, 
Ms. Windrow served as Senior Vice President of Human Resources for The McGraw Hill Companies in the Education 
segment. From 2000 until 2004, she served as Senior Vice President of Human Resources for The MONY Group, and from 
1988 until 1999, she served in various Human Resource positions at Willis, Inc.

Item 1A. Risk Factors.

The following factors, among others, could cause our actual results to differ materially from the forward-looking statements 
we make. All forward-looking statements attributable to us or persons working on our behalf are expressly qualified by the 
following factors. This information should be read in conjunction with Item 7, Management’s Discussion and Analysis of 
Financial Condition and Results of Operations, Item 7A, Quantitative and Qualitative Disclosures about Market Risks and 
the consolidated financial statements and related notes included in this Form 10-K.

Adverse conditions in the global economy and disruptions of financial markets could negatively impact our results  
of operations. 

Our results of operations are affected by the level of business activity of our customers, which in turn is affected by global 
economic conditions and market factors impacting the industries and markets that they serve. Certain global economies 
and markets continue to experience significant uncertainty and volatility. Adverse economic conditions or lack of liquidity in 
various markets, particularly in North America, may adversely affect our revenues and operating results. Economic and 
financial market conditions also affect the availability of financing for projects and for our customers’ capital or other 
expenditures, which can result in project delays or cancellations and thus affect demand for our products. There can be no 
assurance that any governmental responses to economic conditions or disruptions in the financial markets ultimately will 
stabilize the markets or increase our customers’ liquidity or the availability of credit to our customers. Should one or more 
of our larger customers declare bankruptcy, it could adversely affect the collectability of our accounts receivable, bad debt 
reserves and net income. In addition, our ability to access the capital markets may be restricted at a time when we would 
like, or need, to do so. The global economic and financial environment also may affect our business and financial condition 
in ways that we currently cannot predict, and there can be no assurance that global economic and market conditions will 
not adversely affect our results of operations, cash flow or financial position in the future. 

Downgrades of the U.S. sovereign credit rating could affect the strength of the U.S. dollar and since a majority of our sales 
are denominated in U.S. dollars, fluctuations of the U.S. dollar relative to other currencies could negatively affect our 
business, financial results and liquidity.

An increase in competition could decrease sales or earnings. 

We operate in a highly competitive industry and compete directly with global, national, regional and local providers of our 
products and services. Some of our existing competitors have, and new market entrants may have, greater resources than 
us. Competition is primarily focused in the local service area and is generally based on product line breadth, product 
availability, service capabilities and price. Other sources of competition are buying groups formed by smaller distributors to 
increase purchasing power and provide some cooperative marketing capability as well as e-commerce companies.

Existing or future competitors may seek to gain or retain market share by reducing prices, and we may be required to lower 
our prices or may lose business, which could adversely affect our financial results. Also, to the extent that we do not meet 
changing customer preferences or demands or to the extent that one or more of our competitors becomes more successful 
with private label products or otherwise, our ability to attract and retain customers could be materially adversely affected. 

WESCO International, Inc.19

Existing or future competitors also may seek to compete with us for acquisitions, which could have the effect of increasing 
the price and reducing the number of suitable acquisitions. In addition, it is possible that competitive pressures resulting 
from industry consolidation could affect our growth and profit margins.

Certain events or conditions could lead to interruptions in our operations, which may materially adversely affect our 
business, financial condition or results of operations. 

We operate a number of facilities and we coordinate company activities, including information technology systems and 
administrative services and the like, through our headquarters operations. Our operations depend on our ability to maintain 
existing systems and implement new technology, which includes allocating sufficient resources to periodically upgrade our 
information technology systems, and to protect our equipment and the information stored in our databases against both 
manmade and natural disasters, as well as power losses, computer and telecommunications failures, technological 
breakdowns, unauthorized intrusions, cyber attacks, and other events. Conversions to new information technology systems 
may result in cost overruns, delays or business interruptions. If our information technology systems are disrupted, become 
obsolete or do not adequately support our strategic, operational or compliance needs, it could result in competitive 
disadvantage and adversely affect our financial results and business operations, including our ability to process orders, 
receive and ship products, maintain inventories, collect accounts receivable and pay expenses. 

Because we rely heavily on information technology both in serving our customers and in our enterprise infrastructure in 
order to achieve our objectives, we may be vulnerable to damage or intrusion from a variety of cyber-attacks including 
computer viruses, worms or other malicious software programs that access our systems. Despite the precautions we take to 
mitigate the risks of such events, an attack on our enterprise information technology system could result in theft or 
disclosure of our proprietary or confidential information or a breach of confidential customer or employee information. Such 
events could have an adverse impact on revenue, harm our reputation, and cause us to incur legal liability and costs, 
which could be significant, to address and remediate such events and related security concerns. 

We also depend on accessible office facilities, distribution centers and information technology data centers for our 
operations to function properly. An interruption of operations at any of our distribution centers could have a material 
adverse effect on the operations of branches served by the affected distribution center. Such disaster related risks and 
effects are not predictable with certainty and, although they typically can be mitigated, they cannot be eliminated. We seek 
to mitigate our exposures to disaster events in a number of ways. For example, where feasible, we design the configuration 
of our facilities to reduce the consequences of disasters. We also maintain insurance for our facilities against casualties and 
we evaluate our risks and develop contingency plans for dealing with them. Although we have reviewed and analyzed a 
broad range of risks applicable to our business, the ones that actually affect us may not be those we have concluded most 
likely to occur. Furthermore, although our reviews have led to more systematic contingency planning, our plans are in 
varying stages of development and execution, such that they may not be adequate at the time of occurrence for the 
magnitude of any particular disaster event that befalls us.

With the acquisition of EECOL Electric Corporation, our risk profile may differ materially from prior years as a result of 
increased levels of international operations, which could materially change our results of operations.

On December 14, 2012 we completed our largest acquisition to date when we acquired EECOL Electric Corporation for 
approximately $1.1 billion. EECOL is headquartered in Calgary, Alberta with 57 locations throughout Western Canada and 
20 locations in South America. While there are risks associated with acquisitions generally, including integration risks, there 
are additional risks more specifically associated with owning and operating businesses internationally, including those 
arising from import and export controls, exchange rate fluctuations, material developments in political, regulatory or 
economic conditions impacting those operations and various environmental and climatic conditions in particular areas of 
the world. With this acquisition, a greater percentage of our revenues and expenses will arise from international sources 
that may be subject to these risks from time to time. 

2012 Annual Report20

Expansion into new business activities, industries, product lines or geographic areas could subject the company to 
increased costs and risks and may not achieve the intended results.

Engaging in or significantly expanding business activities in product sourcing, sales and services could subject the 
company to unexpected costs and risks. Such activities could subject us to increased operating costs, product liability, 
regulatory requirements and reputational risks. Our expansion into new and existing markets, including manufacturing 
related or regulated businesses, may present competitive, distribution and regulatory challenges that differ from current 
ones. We may be less familiar with the target customers and may face different or additional risks, as well as increased or 
unexpected costs, compared to existing operations. Growth into new markets may also bring us into direct competition with 
companies with whom we have little or no past experience as competitors. To the extent we are reliant upon expansion into 
new geographic, industry and product markets for growth and do not meet the new challenges posed by such expansion, 
our future sales growth could be negatively impacted, our operating costs could increase, and our business operations and 
financial results could be negatively affected.

Loss of key suppliers, product cost fluctuations, lack of product availability or inefficient supply chain operations could 
decrease sales and earnings.

Most of our agreements with suppliers are terminable by either party on 60 days’ notice or less. Our ten largest suppliers in 
2012 accounted for approximately 31% of our purchases for the period. Our largest supplier in 2012 was Eaton 
Corporation, accounting for approximately 12% of our purchases. The loss of, or a substantial decrease in the availability 
of, products from any of these suppliers, a supplier’s change in sales strategy to rely less on distribution channels, or the 
loss of key preferred supplier agreements, could have a material adverse effect on our business. Supply interruptions could 
arise from shortages of raw materials, effects of economic or financial market conditions on a supplier’s operations, labor 
disputes or weather conditions affecting products or shipments, transportation disruptions, or other reasons beyond our 
control. In addition, certain of our products, such as wire and conduit, are commodity-price-based products and may be 
subject to significant price fluctuations which are beyond our control. Furthermore, we cannot be certain that particular 
products or product lines will be available to us, or available in quantities sufficient to meet customer demand. Such limited 
product access could cause us to be at a competitive disadvantage. The profitability of our business is also dependent 
upon the efficiency of our supply chain. An inefficient or ineffective supply chain strategy or operations could increase 
operational costs, reduce profit margins and adversely affect our business.

Acquisitions that we may undertake would involve a number of inherent risks, any of which could cause us not to 
realize the benefits anticipated to result.

We have expanded our operations through organic growth and selected acquisitions of businesses and assets and may 
seek to do so in the future. Acquisitions involve various inherent risks, including: problems that could arise from the 
integration of the acquired business; uncertainties in assessing the value, strengths, weaknesses, contingent and other 
liabilities and potential profitability of acquisition candidates; the potential loss of key employees of an acquired business; 
the ability to achieve identified operating and financial synergies anticipated to result from an acquisition or other 
transaction; unanticipated changes in business, industry or general economic conditions that affect the assumptions 
underlying the acquisition or other transaction rationale; and expansion into new countries or geographic markets where we 
may be less familiar with operating requirements, target customers and regulatory compliance. Any one or more of these 
factors could increase our costs or cause us not to realize the benefits anticipated to result from the acquisition of business 
or assets.

We are subject to costs and risks associated with laws and regulations affecting our business. 

The complex legal and regulatory environment exposes us to compliance costs and risks, as well as litigation and other 
legal proceedings, that could materially affect our operations and financial results. These laws and regulations may change, 
sometimes significantly, as a result of political or economic events. They include tax laws and regulations, import and 
export laws and regulations, government contracting laws and regulations, labor and employment laws and regulations, 
product safety, occupational safety and health laws and regulations, securities and exchange laws and regulations (and 
other laws applicable to publicly-traded companies such as the Foreign Corrupt Practices Act), and environmental laws 
and regulations. In addition, proposed laws and regulations in these and other areas, such as healthcare, employment, or 
legal matters could affect the cost of our business operations. From time to time we are involved in legal proceedings which 
may relate to, for example, product liability, labor and employment (including wage and hour), tax, import and export 
compliance, worker health and safety, general commercial and securities matters. While we believe that the outcome of 

WESCO International, Inc.21

any pending matter is unlikely to have a material adverse effect on our financial condition or liquidity, additional legal 
proceedings may arise in the future and the outcome of any legal proceedings and other contingencies could require us to 
take actions which could adversely affect our operations or could require us to pay substantial amounts of money.

Because we conduct business in many countries, we are subject to income taxes as well as non-income based taxes in 
both the United States and various foreign jurisdictions. As a result, we are required to interpret the income tax laws and 
rulings in each jurisdiction in which we operate and are subject to ongoing tax audits in various jurisdictions. Due to 
ambiguity of tax laws in certain of these jurisdictions and the subjective nature of factual determinations, the respective 
taxing authorities may disagree with certain positions we have taken and assess additional taxes. While we regularly 
evaluate the likely outcomes of these audits in order to determine the appropriateness of our tax provision, there can be no 
assurance that we will accurately predict the outcomes of these audits, and the actual outcomes could adversely affect our 
results of operations.

Our outstanding indebtedness requires debt service commitments that could adversely affect our ability to fulfill our 
obligations and could limit our growth and impose restrictions on our business. 

As of December 31, 2012, we had $1,918.8 million of consolidated indebtedness (excludes debt discount), including 
$850.0 million in aggregate principal amount of term loans due 2019 (the “Term Loans”) and $344.9 million in aggregate 
principal amount of 6.0% Convertible Senior Debentures due 2029 (the “2029 Debentures”). Our consolidated 
indebtedness also includes our mortgage facility, our revolving credit facility (the “Revolving Credit Facility”), which has an 
aggregate borrowing capacity of $600.0 million, and our accounts receivable securitization facility (the “Receivables 
Facility”), through which we sell up to $475.0 million of our accounts receivable to a third-party conduit. We and our 
subsidiaries may undertake additional borrowings in the future, subject to certain limitations contained in the instruments 
governing our indebtedness.

Our debt service obligations have important consequences, including: our payments of principal and interest reduce the 
funds available to us for operations, future business opportunities and acquisitions and other purposes; they increase our 
vulnerability to adverse economic, financial market and industry conditions; our ability to obtain additional financing may 
be limited; they may hinder our ability to adjust rapidly to changing market conditions; we may be required to incur 
additional interest due to the contingent interest features of the 2029 Debentures, which are embedded derivatives; and 
our financial results are affected by increased interest costs. Our ability to make scheduled payments of principal and 
interest on our debt, refinance our indebtedness, make scheduled payments on our operating leases, fund planned capital 
expenditures or to finance acquisitions will depend on our future performance, which, to a certain extent, is subject to 
economic, financial, competitive and other factors beyond our control. There can be no assurance that our business will 
continue to generate sufficient cash flow from operations in the future to service our debt, make necessary capital 
expenditures or meet other cash needs. If unable to do so, we may be required to refinance all or a portion of our existing 
debt, to sell assets or to obtain additional financing. Our Receivables Facility is subject to renewal in August 2014, and our 
Revolving Credit Facility is subject to renewal in August 2016. There can be no assurance that available funding or any sale 
of additional receivables or additional financing will be possible at the times of renewal in amounts or terms favorable to us, 
if at all. 

Over the next three years, we will be required to repay approximately $529.8 million of our currently outstanding 
indebtedness, of which $445.0 million is related to our Receivables Facility expiration, $30.1 million is related to our 
international lines of credit, $26.4 million is related to our mortgage credit facility (including a balloon payment of all 
outstanding amounts due in the first quarter of 2013), and $25.5 million is related to our Term Loans.

We must attract, retain and motivate key employees, and the failure to do so may adversely affect our business and 
results of operations. 

Our success depends on hiring, retaining and motivating key employees, including executive, managerial, sales, technical, 
marketing and support personnel. We may have difficulty locating and hiring qualified personnel. In addition, we may have 
difficulty retaining such personnel once hired, and key people may leave and compete against us. The loss of key 
personnel or our failure to attract and retain other qualified and experienced personnel could disrupt or adversely affect our 

2012 Annual Report22

business, its sales and results of operations. In addition, our operating results could be adversely affected by increased 
costs due to increased competition for employees, higher employee turnover, which may also result in loss of significant 
customer business, or increased employee benefit costs.

Our debt agreements contain restrictions that may limit our ability to operate our business. 

Our credit facilities also require us to maintain specific earnings to fixed expenses and to meet minimum net worth 
requirements in certain circumstances. Our Term Loan and credit facilities contain, and any of our future debt agreements 
may contain, certain covenant restrictions that limit our ability to operate our business, including restrictions on our ability 
to: incur additional debt or issue guarantees; create liens; make certain investments; enter into transactions with our 
affiliates; sell certain assets; make capital expenditures; redeem capital stock or make other restricted payments; declare or 
pay dividends or make other distributions to stockholders; and merge or consolidate with any person. Our Term Loan and 
credit facilities contain additional affirmative and negative covenants, and our ability to comply with these covenants is 
dependent on our future performance, which will be subject to many factors, some of which are beyond our control, 
including prevailing economic conditions. 

As a result of these covenants, our ability to respond to changes in business and economic conditions and to obtain 
additional financing, if needed, may be significantly restricted, and we may be prevented from engaging in transactions 
that might otherwise be beneficial to us. In addition, our failure to comply with these covenants could result in a default 
under the 2029 Debentures, the credit facilities, the Term Loan, and our other debt, which could permit the holders to 
accelerate such debt. If any of our debt is accelerated, we may not have sufficient funds available to repay such debt. 

Goodwill and indefinite life intangible assets recorded as a result of our acquisitions could become impaired. 

As of December 31, 2012, our combined goodwill and indefinite life intangible assets amounted to $1,882.9 million.  
To the extent we do not generate sufficient cash flows to recover the net amount of any investments in goodwill and other 
indefinite life intangible assets recorded, the investment could be considered impaired and subject to write-off. We expect 
to record further goodwill and other indefinite life intangible assets as a result of future acquisitions we may complete. 
Future amortization of such assets or impairments, if any, of goodwill or indefinite life intangible assets would adversely 
affect our results of operations in any given period. 

There is a risk that the market value of our common stock may decline. 

Stock markets have experienced significant price and trading volume fluctuations, and the market prices of companies in 
our industry have been volatile. In recent years, volatility and disruption reached unprecedented levels. For some issuers, 
the markets have exerted downward pressure on stock prices and credit capacity. It is impossible to predict whether the 
price of our common stock will rise or fall. Trading prices of our common stock will be influenced by our operating results 
and prospects and by global economic, financial and other factors. 

Future sales of our common stock in the public market or issuance of securities senior to our common stock could 
adversely affect the trading price of our common stock and the value of the 2029 Debentures. 

Future sales of substantial amounts of our common stock or equity-related securities in the public market, or the 
perception that such sales could occur, could adversely affect prevailing trading prices of our common stock and the value 
of the 2029 Debentures and could impair our ability to raise capital through future offerings of equity or equity-related 
securities. No prediction can be made as to the effect, if any, that future sales of shares of common stock or the availability 
of shares of common stock for future sale will have on the trading price of our common stock or the value of the 2029 
Debentures. 

There may be future dilution of our common stock. 

To the extent options to purchase common stock under our stock option plans are exercised, holders of our common  
stock will incur dilution. Additionally, our 2029 Debentures include contingent conversion price provisions and options for 
settlement in shares. Based on our current stock price, the 2029 Debentures may be converted into common stock which 
would increase dilution to our stockholders. 

WESCO International, Inc.23

Item 1B. Unresolved Staff Comments.

None.

Item 2. Properties.

We have approximately 475 branches, of which approximately 325 are located in the United States, approximately 105 are 
located in Canada and the remainder are in other locations including Chile, Mexico, the United Kingdom, Singapore, 
China, and Australia. Approximately 20% of our branches are owned facilities, and the remainder are leased.

The following table summarizes our distribution centers:

Location  
Warrendale, PA 
Sparks, NV 
Byhalia, MS 
Little Rock, AR 
Madison, WI 
Dorval, QE 
Burnaby, BC 
Edmonton, AB 
Mississauga, ON 

Square Feet 
194,000 
131,000 
148,000 
100,000 
136,000 
90,000 
65,000 
101,000 
246,000 

Leased/Owned
Owned
Leased
Owned
Leased
Leased
Leased
Owned
Leased
Leased

We also lease our 69,000 square-foot headquarters in Pittsburgh, Pennsylvania. We do not regard the real property 
associated with any single branch location as material to our operations. We believe our facilities are in good operating 
condition and are adequate for their respective uses.

2012 Annual Report24

Item 3. Legal Proceedings.

From time to time, a number of lawsuits and claims have been or may be asserted against us relating to the conduct of our 
business, including routine litigation relating to commercial and employment matters. The outcome of any litigation cannot 
be predicted with certainty, and some lawsuits may be determined adversely to us. However, management does not 
believe, based on information presently available, that the ultimate outcome of any such pending matters is likely to have a 
material adverse effect on our financial condition or liquidity, although the resolution in any quarter of one or more of these 
matters may have a material adverse effect on our results of operations for that period.

As initially reported in our 2008 Annual Report on Form 10-K, WESCO International, Inc. (the “Company”), through its 
wholly owned subsidiary, WESCO Distribution, Inc., is a defendant in a lawsuit filed in a state court in Indiana in which a 
customer, ArcelorMittal Indiana Harbor, Inc. (“AIH”), alleges that the Company sold defective products to AIH in 2004  
that were supplied to the Company by others. The lawsuit sought monetary damages in the amount of approximately  
$50 million. On February 14, 2013, the jury returned a verdict in favor of AIH and awarded damages in the amount of 
approximately $36 million. Judgment was entered on the jury’s verdict on February 14, 2013. The Company disputes this 
outcome and intends to appeal the judgment. The judgment amount may increase or decrease based on the outcome of 
various post-trial proceedings, which cannot be predicted with certainty. The Company has also submitted the claims to its 
insurance carriers. 

Information relating to legal proceedings is included in Note 14, Commitments and Contingencies of the Notes to 
Consolidated Financial Statements and is incorporated herein by reference.

Item 4. Mine Safety Disclosures.

Not applicable.

WESCO International, Inc.25

PART II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters 
and Issuer Purchases of Equity Securities.

Market, Stockholder and Dividend Information. Our common stock is listed on the New York Stock Exchange under the 
symbol “WCC.” As of February 26, 2013, there were 44,087,890 shares of common stock outstanding held by 
approximately 26 holders of record. We have not paid dividends on the common stock and do not presently plan to pay 
dividends in the foreseeable future. It is currently expected that earnings will be reinvested to support business growth, 
debt reduction or acquisitions. In addition, our Revolving Credit Facility and Term Loan Agreement restrict our ability to pay 
dividends. See Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations 
— Liquidity and Capital Resources.” The following table sets forth the high and low sales prices per share of our common 
stock, as reported on the New York Stock Exchange, for the periods indicated.

Quarter  

2011
First   
Second   
Third   
Fourth 
2012 
First   
Second   
Third   
Fourth 

  $ 

  $ 

Sales Prices

High 

Low

63.09  $ 
64.90 
57.34 
54.33 

67.34  $ 
68.19 
64.17 
67.72 

52.14
50.29
33.51
31.08

52.67
52.29
51.76
55.02

2012 Annual Report 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
26

Item 6. Selected Financial Data.

Selected financial data and significant events related to the Company’s financial results for the last five fiscal years are 
listed below. The financial data should be read in conjunction with the Consolidated Financial Statements and Notes 
thereto included in Item 8 and with Management’s Discussion and Analysis of Financial Condition and Results of 
Operations, included in Item 7.

Year Ended December 31, 

2012 

2011 

2010 

2009 

2008

(Dollars in millions, except per share data) 

Income Statement Data: 
Net sales  
Cost of goods sold  
Selling, general and administrative expenses 
Depreciation and amortization 
Income from operations 
Interest expense, net 
Loss on debt extinguishment / (gain)  
  on debt exchange(1) 
Other (income)(2) 
Income before income taxes 
Provision for income taxes 
Net income   
Less: Net loss attributable to  
  noncontrolling interest(3) 
Net income attributable to  
  WESCO International, Inc. 

$ 

6,579.3  $ 
5,247.8 
961.0 
37.6 
332.9 
47.8 

6,125.7  $ 
4,889.2 
872.0 
31.6 
332.9 
53.6 

5,063.9  $ 
4,065.4 
763.7 
23.9 
210.9 
57.6 

4,624.0  $ 
3,724.1 
693.9 
26.0 
180.0 
53.8 

6,110.8
4,904.2
834.3
26.7
345.6
64.2

3.5 
— 
281.6 
79.9 
201.7 

— 
— 
279.3 
83.1 
196.2 

— 
(4.3) 
157.6 
42.2 
115.4 

(6.0) 
(5.0) 
137.2 
32.1 
105.1 

—
(9.4)
290.8
86.7
204.1

0.1 

0.1 

— 

— 

—

$ 

201.8  $ 

196.3  $ 

115.4  $ 

105.1  $ 

204.1

Earnings per common share attributable  
  to WESCO International, Inc.
$ 
  Basic  
  Diluted 
$ 
Weighted average common shares outstanding   
  Basic  
  Diluted 

Other Financial Data: 
Capital expenditures 
Net cash provided by operating activities 
Net cash (used) provided by investing activities  
Net cash provided (used) by financing activities 

$ 

4.62  $ 
3.95  $ 

4.54  $ 
3.96  $ 

2.72  $ 
2.50  $ 

2.49  $ 
2.46  $ 

43.7 
51.1 

43.2 
49.6 

42.5 
46.1 

42.3 
42.7 

4.82
4.71

42.4
43.3

23.1  $ 

33.3  $ 

15.1  $ 

13.0  $ 

288.2 
(1,311.0) 
1,044.0 

167.5 
(81.3) 
(70.9) 

127.3 
(220.5) 
30.6 

291.7 
(10.7) 
(264.9) 

35.3
279.9
16.4
(265.0)

Balance Sheet Data: 
Total assets   
Total debt  
  (including current and short-term debt)(4) 
Stockholders’ equity(5) 

$ 

4,629.6  $ 

3,078.5  $ 

2,826.8  $ 

2,494.2  $ 

2,719.9

1,735.2 
1,553.7 

649.3 
1,345.9 

729.9 
1,148.6 

691.8 
996.3 

1,100.3
755.1

(1)   Represents the loss recognized in 2012 due to the redemption of all the outstanding 7.50% 2017 Senior Subordinated Notes due 2017  

(the “2017 Notes”) and the gain related to the 2009 convertible debt exchange. See Note 7 of the Notes to Consolidated Financial Statements.

(2)  In 2010, 2009 and 2008, represents income from the LADD joint venture. See Note 9 of the Notes to Consolidated Financial Statements. 

(3)   Represents the portion of a net loss attributable to a consolidated entity not owned by the Company. See Note 5 of the Notes to Consolidated  

Financial Statements.

(4)   Includes the discount related to the 2029 Debentures, the 2.625% Convertible Senior Debentures due 2025 (the “2025 Debentures”), the  

1.75% Convertible Senior Debentures due 2026 (the “2026 Debentures”), and the Term Loan facility. See Note 7 of the Notes to Consolidated  
Financial Statements.

(5)  Stockholders’ equity includes amounts related to the Debentures. See Note 7 of the Notes to Consolidated Financial Statements.

WESCO International, Inc. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
27

Item 7. Management’s Discussion and Analysis of Financial Condition and 
Results of Operations.

The following discussion should be read in conjunction with the audited consolidated financial statements and notes 
thereto included in Item 8 of this Annual Report on Form 10-K.

COMPANY OVERVIEW

In 2012, we strengthened our organization and talent base, made improvements to our operations and capital structure, 
expanded our international presence, improved productivity, and completed four accretive acquisitions. Sales increased 
$453.6 million, or 7.4%, over the prior year. Acquisitions positively impacted consolidated sales by 3.3%, while foreign 
currency exchange negatively impacted sales by 0.3%, resulting in organic sales growth of 4.4%. Cost of goods sold as a 
percentage of net sales was 79.8% in both 2012 and 2011. Operating income of $332.9 million was comparable to prior 
year due to the $36 million 2012 fourth quarter charge related to the ArcelorMittal jury verdict. Net income increased 2.8% 
over the prior year to $201.8 million. Diluted earnings per share attributable to WESCO International, Inc. were $3.95 in 
2012, compared with $3.96 in 2011.

Our end markets consist of industrial firms, electrical and data communications contractors, utilities, and commercial 
organizations, institutions and governmental entities. Our transaction types to these markets can be categorized as stock, 
direct ship and special order. Stock orders are filled directly from existing inventory and represent approximately 45% of 
total sales. Approximately 42% of our total sales are direct ship sales. Direct ship sales are typically custom-built products, 
large orders or products that are too bulky to be easily handled and, as a result, are shipped directly to the customer from 
the supplier. Special orders are for products that are not ordinarily stocked in inventory and are ordered based on a 
customer’s specific request. Special orders represent the remainder of total sales.

We have historically financed our working capital requirements, capital expenditures, acquisitions, share repurchases and 
new branch openings through internally generated cash flow, debt issuances, borrowings under our credit facilities and 
funding through our Receivables Facility.

CASH FLOW

We generated $288.2 million in operating cash flow during 2012. Included in this amount were increased operating results 
partially offset by investments in working capital to fund our growth. Investing activities included aggregate payments of 
$1,289.5 million for the acquisitions of RS Electronics, Conney Safety, Trydor Industries, and EECOL Electric and $23.1 
million for capital expenditures. Refer to Note 5 of our Notes to the Consolidated Financial Statements for additional 
information regarding the recent acquisitions. Financing activities during 2012 consisted of borrowings and repayments of 
$787.0 million and $605.7 million, respectively, related to our Revolving Credit Facility, borrowings and repayments of 
$672.1 million and $477.1 million, respectively, related to our Receivables Facility, borrowings of $840.7 related to our new 
Term Loans, and repayments of $150.1 related to early redemption of all the outstanding 2017 Notes.

FINANCING AVAILABILITY

As of December 31, 2012, we had $299.0 million in total available borrowing capacity. The available borrowing capacity 
under our Revolving Credit Facility, which has a maturity date in August 2016, was $270.9 million, of which $89.7 million 
was the U.S. sub-facility borrowing limit and $181.2 million was the Canadian sub-facility borrowing limit. The available 
borrowing capacity under the Receivables Facility, which has a maturity date in August 2014, was $2.6 million. Our 2029 
Debentures cannot be redeemed or repurchased until September 2016. For further discussion related to the Debentures, 
refer to Note 7 of our Notes to the Consolidated Financial Statements. We monitor the depository institutions that hold our 
cash and cash equivalents on a regular basis, and we believe that we have placed our deposits with creditworthy financial 
institutions. For further discussions refer to “Liquidity and Capital Resources.”

2012 Annual Report28

CRITICAL ACCOUNTING POLICIES AND ESTIMATES

Our discussion and analysis of our financial condition and results of operations are based upon our consolidated financial 
statements, which have been prepared in accordance with accounting principles generally accepted in the United States  
of America. The preparation of these financial statements requires us to make estimates and judgments that affect the 
reported amounts of assets, liabilities, revenues and expenses and related disclosure of contingent assets and liabilities.  
On an ongoing basis, we evaluate our estimates, including those related to supplier programs, bad debts, inventories, 
insurance costs, goodwill, income taxes, contingencies and litigation. We base our estimates on historical experience and 
on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the 
basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other 
sources. Actual results may differ from these estimates. If actual market conditions are less favorable than those projected 
by management, additional adjustments to reserve items may be required. We believe the following critical accounting 
policies affect our judgments and estimates used in the preparation of our consolidated financial statements.

Revenue Recognition

Revenues are recognized for product sales when title, ownership and risk of loss pass to the customer, or for services when 
the service is rendered. In the case of stock sales and special orders, a sale occurs at the time of shipment from our 
distribution point, as the terms of our sales are predominantly FOB shipping point. In cases where we process customer 
orders but ship directly from our suppliers, revenue is recognized once product is shipped and title has passed. In all 
cases, revenue is recognized once the sales price to our customer is fixed or is determinable and we have reasonable 
assurance as to the collectability.

In certain customer arrangements, we provide services such as inventory management. We may perform some or all of the 
following services for customers: determine inventory stocking levels; establish inventory reorder points; launch purchase 
orders; receive material; put away material; and pick material for order fulfillment. We recognize revenue for services 
rendered during the period based upon a previously negotiated fee arrangement. We also sell inventory to these customers 
and recognize revenue at the time title and risk of loss transfers to the customer. 

Selling, General and Administrative Expenses

We include warehousing, purchasing, branch operations, information services, and marketing and selling expenses in this 
category, as well as other types of general and administrative costs.

Allowance for Doubtful Accounts

We maintain allowances for doubtful accounts for estimated losses resulting from the inability of our customers to make 
required payments. We have a systematic procedure using estimates based on historical data and reasonable assumptions 
of collectibles made at the local branch level and on a consolidated corporate basis to calculate the allowance for doubtful 
accounts.

Excess and Obsolete Inventory 

We write down our inventory to its net realizable value based on internal factors derived from historical analysis of actual 
losses. We identify items at risk of becoming obsolete, which are defined as excess of 36 months supply relative to demand 
or movement. We then analyze the ultimate disposition of previously identified excess inventory items, such as sold, 
returned to supplier, or scrapped. This item by item analysis allows us to develop an estimate of the likelihood that an item 
identified as being in excess supply ultimately becomes obsolete. We apply the estimate to inventory items currently in 
excess of 36 months supply, and reduce our inventory carrying value by the derived amount. We revisit and test our 
assumptions on a periodic basis. Historically, we have not had material changes to our assumptions and do not anticipate 
any material changes in the future. 

Supplier Volume Rebates

We receive rebates from certain suppliers based on contractual arrangements with them. Since there is a lag between 
actual purchases and the rebates received from the suppliers, we must estimate and accrue the approximate amount of 
rebates available at a specific date. We record the amounts as other accounts receivable on the balance sheet. The 

WESCO International, Inc.29

corresponding rebate income is recorded as a reduction of cost of goods sold. The appropriate level of such income is 
derived from the level of actual purchases made by us from suppliers. Supplier volume rebate rates have historically ranged 
between approximately 0.8% and 1.3% of sales depending on market conditions. In 2012, the rebate rate was 1.3%.

Goodwill and Indefinite Life Intangible Assets

We test goodwill and indefinite life intangible assets for impairment annually during the fourth quarter using information 
available at the end of September, or more frequently when events or circumstances occur indicating that their carrying 
value may not be recoverable. We test for goodwill impairment on a reporting unit level. The evaluation of impairment 
involves comparing the current fair value of goodwill and indefinite life intangible assets to the recorded value. We estimate 
the fair value of goodwill using a combination of discounted cash flow analyses and market multiples. Assumptions used 
for these fair value techniques are based on a combination of historical results, current forecasts, market data and recent 
economic events. We evaluate the recoverability of indefinite life intangible assets using a discounted cash flow analysis 
based on projected financial information. The determination of fair value involves significant management judgment and 
we apply our best judgment when assessing the reasonableness of financial projections. Two primary assumptions were a 
discount rate of 9.8% and a terminal growth rate of 5.0%.

A possible indicator of goodwill impairment is the relationship of a company’s market capitalization to its book value. As of 
December 31, 2012, our market capitalization exceeded our book value and there were no reporting units sensitive to 
impairment. 

The reported value of indefinite life trademarks totaled $105.1 million and $46.9 million at December 31, 2012 and 2011, 
respectively. Two trademarks totaling $18.1 million are most sensitive to a decline in financial performance. We are taking 
actions to improve our financial performance related to these businesses; however, we cannot predict whether or not there 
will be certain events that could adversely affect the reported value of these trademarks.

Intangible Assets

We account for certain economic benefits purchased as a result of our acquisitions, including customer relations, 
distribution agreements, technology and trademarks, as intangible assets. Most trademarks have an indefinite life. We 
amortize all other intangible assets over a useful life determined by the expected cash flows produced by such intangibles 
and their respective tax benefits. Useful lives vary between 4 and 20 years, depending on the specific intangible asset.

Insurance Programs

We use commercial insurance for auto, workers’ compensation, casualty and health claims as a risk sharing strategy to 
reduce our exposure to catastrophic losses. Our strategy involves large deductibles where we must pay all costs up to the 
deductible amount. We estimate our reserve based on historical incident rates and costs.

Income Taxes

We recognize deferred tax assets and liabilities for expected future tax consequences of events that have been included  
in our consolidated financial statements or tax returns. Deferred tax assets and liabilities are determined based on the 
difference between the financial reporting and the tax bases of assets and liabilities using enacted tax rates in effect for  
the year in which the differences are expected to reverse.

We record our deferred tax assets at amounts that are expected to be realized. We evaluate future taxable income and 
potential tax planning strategies in assessing the potential need for a valuation allowance. Should we determine that it is 
more likely than not that we would not be able to realize all or part of our deferred tax assets in the future, an adjustment to 
the deferred tax asset would be charged to income in the period such determination was made.

We account for uncertainty in income taxes using a recognition threshold and measurement attribute prescribed by income 
tax accounting guidance. We frequently review tax issues and positions taken on tax returns to determine the need and 
amount of contingency reserves necessary to cover any probable audit adjustments.

2012 Annual Report30

Convertible Debentures

We separately account for the liability and equity components of our convertible debentures in a manner that reflects our 
nonconvertible debt borrowing rate. We estimate our non-convertible debt borrowing rate through a combination of 
discussions with our financial institutions and review of relevant market data. The discounts to the convertible debenture 
balances are amortized to interest expense, using the effective interest method, over the implicit life of the debentures.

Stock-Based Compensation

Our stock-based employee compensation plans are comprised of stock options, stock-settled stock appreciation rights, 
restricted stock units, and performance-based awards. Compensation cost for all stock-based awards is measured at fair 
value on the date of grant, and compensation cost is recognized, net of estimated forfeitures, over the service period for 
awards expected to vest. The fair value of stock options and stock-settled appreciation rights is determined using the 
Black-Scholes valuation model. The performance-based awards are valued based upon a Monte Carlo simulation model. 
Expected volatilities are based on historical volatility of our common stock. We estimate the expected life of stock options 
and stock-settled stock appreciation rights using historical data pertaining to option exercises and employee terminations. 
The risk-free rate is based on the U.S. Treasury yields in effect at the time of grant. The forfeiture assumption is based  
on our historical employee behavior, which we review on an annual basis. Restricted stock units with vesting dependent 
upon service conditions are valued based on the market price on the grant date. No dividends are assumed for stock-
based awards.

RESULTS OF OPERATIONS

The following table sets forth the percentage relationship to net sales of certain items in our consolidated statements of 
income for the periods presented.

Year Ended December 31, 

2012 

2011 

Net sales  
Cost of goods sold  
Selling, general and administrative expenses 
Depreciation and amortization 
Income from operations 
Interest expense    
Loss on debt extinguishment 
Other income 
Income before income taxes 
Provision for income taxes 
Net income attributable to WESCO International, Inc. 

2012 Compared to 2011 

100.0%   
79.8 
14.6 
0.5 
5.1 
0.7 
0.1 
— 
4.3 
1.2 
3.1%   

100.0%   
79.8 
14.2 
0.5 
5.5 
0.9 
— 
— 
4.6 
1.4 
3.2%   

2010

100.0%
80.3
15.1
0.5
4.1
1.1
—
(0.1)
3.1
0.8
2.3%

Net Sales. Sales in 2012 increased 7.4% to $6,579.3 million, compared with $6,125.7 million in 2011. Sales were 
positively impacted by execution of our growth initiatives and recent acquisitions. The increase in sales included a positive 
impact from acquisitions of 3.3% and a negative impact from foreign exchange of 0.3%. Additionally, management 
estimates the price impact on net sales was approximately 1.0%.

Cost of Goods Sold. Cost of goods sold increased 7.3% in 2012 to $5,247.9 million, compared with $4,889.1 million in 
2011. Cost of goods sold as a percentage of net sales was 79.8% in both 2012 and 2011.

Selling, General and Administrative (“SG&A”) Expenses. SG&A expenses include costs associated with personnel, 
shipping and handling, travel, advertising, facilities, utilities and bad debts. SG&A expenses increased by $89.0 million, or 
10.2%, to $961.0 million in 2012. The increase in SG&A expenses is primarily due to the $36 million 2012 fourth quarter 
charge related to the ArcelorMittal jury verdict. Additionally, SG&A expenses increased due to the impact from recent 
acquisitions of $29.7 million and compensation expenses related to the growth in sales. As a percentage of net sales, 
SG&A expenses increased to 14.6% of sales, compared with 14.2% in 2011.

WESCO International, Inc. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
31

SG&A payroll expenses for 2012 of $661.6 million increased by $52.7 million compared to 2011. The increase in SG&A 
payroll expense was primarily due to an increase in salary expense of $40.8 million and an increase in benefits of $15.5 
million. These increases are primarily due to an increase in headcount, which is the result of both recent acquisitions and 
organic growth initiatives. Temporary labor costs and other SG&A payroll related costs each decreased $2.0 million.

The remaining SG&A expenses for 2012 of $263.3 million increased by $0.2 million compared to 2011. 

Depreciation and Amortization. Depreciation and amortization increased $6.0 million to $37.6 million in 2012, compared 
with $31.6 million in 2011. The increase in depreciation and amortization was primarily due to the impact from recent 
acquisitions of $4.6 million.

Income from Operations. Income from operations decreased by $0.1 million to $332.9 million in 2012, compared to 
$333.0 million in 2011. 

Interest Expense. Interest expense totaled $47.8 million in 2012, compared with $53.6 million in 2011, a decrease of 
10.9%. Non-cash interest expense, which includes convertible debt interest, interest related to uncertain tax positions, and 
the amortization of deferred financing fees, for 2012 and 2011 was $1.5 million and $8.8 million, respectively.

Loss on Debt Extinguishment. In 2012, a loss on debt extinguishment of $3.5 million was incurred due to the redemption 
of the 2017 Notes.

Income Taxes. Our effective income tax rate decreased to 28.4% in 2012, compared with 29.8% in 2011, primarily as a 
result of the increase in taxable income outside the United States that is taxed at a lower rate.

Net Income. Net income increased by $5.5 million, or 2.8%, to $201.8 million in 2012, compared to $196.2 million in 2011.

Net Loss attributable to noncontrolling interest. Net loss attributable to noncontrolling interest totaled less than $0.1 
million in 2012 and 2011.

Net Income attributable to WESCO International, Inc. Net income and diluted earnings per share attributable to WESCO 
International, Inc. on a consolidated basis totaled $201.8 million and $3.95 per share, respectively, in 2012, compared 
with $196.3 million and $3.96 per share, respectively, in 2011.

2011 Compared to 2010 

Net Sales. Sales in 2011 increased 21.0% to $6,125.7 million, compared with $5,063.9 million in 2010. Sales were 
positively impacted by our growth initiatives, improved conditions in our markets served, favorable foreign currency 
exchange rates positively impacting net sales by 0.8%, and acquisitions positively impacting net sales by 6.8%. 
Additionally, management estimates the price impact on net sales was approximately 3.0%.

Cost of Goods Sold. Cost of goods sold increased 20.3% in 2011 to $4,889.2 million, compared with $4,065.4 million in 
2010. Cost of goods sold as a percentage of net sales was 79.8% in 2011 versus 80.3% in 2010. The decrease in the cost 
of goods sold percentage was primarily due to the margin impact from recent acquisitions and higher supplier volume 
rebate rates driven by the increase in sales.

Selling, General and Administrative Expenses. SG&A expenses include costs associated with personnel, shipping and 
handling, travel, advertising, facilities, utilities and bad debts. SG&A expenses increased by $108.4 million, or 14.2%, to 
$872.0 million in 2011. The increase in SG&A expenses is primarily due to compensation expenses related to the growth in 
sales and the impact from recent acquisitions of $44.6 million. As a percentage of net sales, SG&A expenses decreased to 
14.2% of sales, compared with 15.1% in 2010. SG&A expenses increased at a lower rate than sales due to the continued 
effectiveness of our cost control initiatives and the fixed cost nature of certain SG&A expense components.

2012 Annual Report32

SG&A payroll expenses for 2011 of $608.9 million increased by $81.4 million compared to 2010. The increase in SG&A 
payroll expense was primarily due to an increase in salary expense of $43.9 million and an increase in commissions and 
incentives of $23.7 million. These increases are primarily due to an increase in headcount, which is the result of both 
recent acquisitions and organic growth initiatives.

The remaining SG&A expenses for 2011 of $263.1 million increased by $27.0 million compared to 2010 due to an 
increase in variable operating expenses associated with the growth in sales. 

Depreciation and Amortization. Depreciation and amortization increased $7.7 million to $31.6 million in 2011, compared 
with $23.9 million in 2010. The increase in depreciation and amortization was primarily due to an increase in capital 
expenditures from $15.1 million in 2010 to $33.3 million in 2011.

Income from Operations. Income from operations increased by $122.1 million, or 57.9%, to $332.9 million in 2011, 
compared to $210.9 million in 2010. 

Interest Expense. Interest expense totaled $53.6 million in 2011, compared with $57.6 million in 2010, a decrease of 
6.9%. In 2010, interest expense was negatively impacted by $4.2 million resulting from the resolution of an outstanding  
tax matter.

Other Income. No other income was reported in 2011. In 2010, other income was comprised of equity income from the 
LADD joint venture totaling $4.3 million.

Income Taxes. Our effective income tax rate increased to 29.8% in 2011, compared with 26.7% in 2010, primarily as a 
result of the increase in taxable income in the United States.

Net Income. Net income increased by $80.8 million, or 69.9%, to $196.2 million in 2011, compared to $115.4 million  
in 2010.

Net Loss attributable to noncontrolling interest. Net loss attributable to noncontrolling interest totaled less than  
$0.1 million in 2011.

Net Income attributable to WESCO International, Inc. Net income and diluted earnings per share attributable to WESCO 
International, Inc. on a consolidated basis totaled $196.3 million and $3.96 per share, respectively, in 2011, compared 
with $115.4 million and $2.50 per share, respectively, in 2010.

LIQUIDITY AND CAPITAL RESOURCES

Total assets were $4.6 billion at December 31, 2012, compared to $3.1 billion at December 31, 2011. The $1.3 billion 
increase in total assets was principally attributable to the increase in goodwill of $769.7 million, intangible assets of  
$339.9 million, inventory of $167.0 million, and accounts receivable of $96.8 million. These increases are primarily 
attributable to recent acquisitions along with an increase in sales activity. Total liabilities at December 31, 2012 compared 
to December 31, 2011 increased by $1.3 billion to $3.1 billion. Contributing to the increase in total liabilities was the 
increase in long-term debt of $1,052.5 million and accounts payable of $63.8 million. These increases were associated 
with the recent and current year acquisitions and increased purchasing activity. Stockholders’ equity increased by 15.4% 
to $1.6 billion at December 31, 2012, compared with $1.3 billion at December 31, 2011, primarily as a result of net 
earnings of $201.8 million.

WESCO International, Inc.The following table sets forth our outstanding indebtedness:

As of December 31, 

(In thousands)

33

2012 

2011

  $ 

Term Loan Facility, less debt discount of $9,936 
Mortgage financing facility 
Accounts receivable securitization facility 
Revolving credit facility 
7.50% Senior Subordinated Notes due 2017 
Foreign lines of credit 
1.75% Convertible Senior Debentures due 2026, less debt discount of $0 in 2012 and 2011 
6.0% Convertible Senior Debentures due 2029, less debt discount of $173,708  
  and $175,908 in 2012 and 2011, respectively 
Capital leases 
Other notes   
Total debt 
Less current and short-term portion 
Total long-term debt 

840,827  $ 

26,414 
445,000 
218,295 
— 
30,136 
— 

171,213 
3,220 
67 
  1,735,172 
(39,759) 

  $  1,695,413  $ 

—
37,564
250,000
36,792
150,000
3,261
56

169,054
2,521
85
649,333
(6,411)
642,922

The required annual principal repayments for all indebtedness for the next five years and thereafter, as of  
December 31, 2012 is set forth in the following table:

(In thousands)

2013   
2014   
2015   
2016   
2017   
Thereafter 
  Total payments on debt 
  Debt discount on convertible debentures and term loan facility 

  Total long-term debt 

  $ 

66,173
454,436
9,192
227,162
8,691
  1,153,162
  1,918,816
(183,644)
  $  1,735,172

Our liquidity needs generally arise from fluctuations in our working capital requirements, capital expenditures, acquisitions 
and debt service obligations. As of December 31, 2012, we had $270.9 million in available borrowing capacity under our 
Revolving Credit Facility, which combined with our $2.6 million of available borrowing capacity under our Receivables 
Facility and our invested cash of $25.5 million provided liquidity of $299.0 million. Invested cash included in our 
determination of liquidity represents cash deposited in interest bearing accounts. We believe cash provided by operations 
and financing activities will be adequate to cover our current operational and business needs.

We communicate on a regular basis with our lenders regarding our financial and working capital performance and  
liquidity position. We are in compliance with all covenants and restrictions contained in our debt agreements as of 
December 31, 2012.

At December 31, 2012, we had cash and cash equivalents totaling $86.1 million, of which $45.7 million was held by 
foreign subsidiaries. Included in cash held by foreign subsidiaries is approximately $31.5 million, which was obtained in 
connection with the acquisition of EECOL on December 14, 2012. This amount is expected to be returned to the sellers in 
May 2013; accordingly, a corresponding liability has been recorded at December 31, 2012. The cash held by some of our 
foreign subsidiaries could be subject to additional U.S. income taxes if repatriated. We believe that we are able to maintain 
a sufficient level of liquidity for our domestic operations and commitments without repatriation of the cash held by these 
foreign subsidiaries.

2012 Annual Report 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
34

Over the next several quarters, we expect to maintain working capital productivity, and it is expected that excess cash will 
be directed primarily at debt reduction and acquisitions. Our near term focus will be managing our working capital as we 
experience sales growth and maintaining ample liquidity and credit availability. We anticipate capital expenditures in 2013 
to be at levels similar to 2012. We believe our balance sheet and ability to generate ample cash flow provides us with a 
durable business model and should allow us to fund expansion needs and growth initiatives.

We finance our operating and investing needs as follows:

Term Loan Facility 

On December 12, 2012, WESCO Distribution, as U.S. borrower, WDCC Enterprises, Inc. (WDCC and together with WESCO 
Distribution, the “Borrowers”), as Canadian borrower, and WESCO International entered into a Term Loan Agreement (the 
“Term Loan Agreement”) among WESCO Distribution, WDCC, the Company, the lenders party thereto and Credit Suisse AG 
Cayman Islands Branch, as administrative agent and as collateral agent. 

The Term Loan Agreement provides for a seven-year term loan facility (the “Term Loan Facility”), which consists of two 
separate sub-facilities: (i) a Canadian sub-facility in an aggregate principal amount of CAD $150.0 million, issued at a 2.0% 
discount and (ii) a U.S. sub-facility in an aggregate principal amount of US $700.0 million, issued at a 1.0% discount. 
WESCO is amortizing the debt discount and financing costs over the life of the instrument. Non-cash interest expense of 
$0.1 million was recorded for the year ended December 31, 2012. The debt discount amortization is expected to be $1.4 
million annually.

Subject to the terms of the Term Loan Facility, the Borrowers may request incremental term loans thereunder from time to 
time in an aggregate principal amount not to exceed at any time US $300.0 million, with an equivalent principal amount in 
U.S. Dollars being calculated for any incremental term loan denominated in Canadian Dollars, in order to finance certain 
permitted acquisitions. The proceeds of the Term Loan Facility were used to finance the acquisition of EECOL, to pay fees 
and expenses incurred in connection with the acquisition and certain other transactions. At December 31, 2012, WESCO 
had a balance outstanding under the facility of US $850.8 million.

Borrowings under the Term Loan Facility bear interest at base rates plus applicable margins. At December 31, 2012, the 
interest rates on borrowings under the Canadian sub-facility and U.S. sub-facility were approximately 5.2% and 4.5%, 
respectively. The Borrowers will pay quarterly installments of principal equal to 0.25% of the original principal amount of 
their respective term loans, plus accrued and unpaid interest, beginning on March 31, 2013. To the extent not previously 
paid, the term loans will become due and payable on December 12, 2019, with any unpaid incremental term loans 
becoming due and payable on the respective maturity dates applicable to those incremental term loans. Other than in 
certain circumstances prior to the first anniversary of the closing of the Term Loan Facility, at any time or from time to time, 
the Borrowers may prepay borrowings under the Term Loan Facility in whole or in part without premium or penalty. The 
Borrowers’ obligations under the Term Loan Facility are secured by substantially all of the assets of the Borrowers, the 
Company and certain of the Company’s other subsidiaries; provided that, with respect to borrowings under the U.S. 
sub-facility, the collateral does not include assets of certain foreign subsidiaries or more than 65% of the issued and 
outstanding equity interests in certain foreign subsidiaries. 

The Term Loan Facility contains customary affirmative and negative covenants for credit facilities of this type, including 
limitations on the Term Loan Parties with respect to indebtedness, liens, investments, mergers and acquisitions, 
dispositions of assets and transactions with affiliates. The Term Loan Facility also provides for customary events of default.

Mortgage Financing Facility

In 2003, WESCO finalized a mortgage financing facility of $51 million, of which $26.4 million was outstanding as of 
December 31, 2012. Total borrowings under the mortgage financing facility are subject to a 22-year amortization schedule, 
with a balloon payment due during the first quarter of 2013. The interest rate on borrowings under this facility is fixed at 
6.5%. The Company’s intent is to pay the 2013 obligations of $26.4 million utilizing the Revolving Credit Facility and 
therefore this facility is classified as long-term. 

WESCO International, Inc.35

Accounts Receivable Securitization Facility

On December 11, 2012, WESCO Distribution entered into an amendment of the Receivables Facility pursuant to the terms 
and conditions of a Seventh Amendment to Third Amended and Restated Receivables Purchase Agreement, dated as of 
December 11, 2012 (the “Amendment”), by and among WESCO Receivables Corp. (“WESCO Receivables”), WESCO 
Distribution, the Purchasers and Purchaser Agents party thereto and PNC Bank, National Association, as Administrator. 
The Amendment, among other things, added certain defined terms and amended certain other terms such as change in 
control, excluded receivables, and an intercreditor agreement. Substantially all other terms and conditions of the 
Receivables Facility remain unchanged. In addition, on December 11, 2012, WESCO Distribution and WESCO Receivables 
exercised an existing accordion feature under the Receivables Facility to increase the purchasing limit thereunder from 
$450.0 million to $475.0 million. The Receivables Facility matures in August 2014.

Under the Receivables Facility, we sell, on a continuous basis, an undivided interest in all domestic accounts receivable to 
WESCO Receivables, a wholly owned special purpose entity (the “SPE”). The SPE sells, without recourse, a senior 
undivided interest in the receivables to third-party conduits and financial institutions for cash while maintaining a 
subordinated undivided interest in the receivables, in the form of overcollateralization. WESCO has agreed to continue 
servicing the sold receivables for the third-party conduits and financial institutions at market rates; accordingly, no servicing 
asset or liability has been recorded.

As of December 31, 2012 and 2011, accounts receivable eligible for securitization totaled approximately $601.1 million 
and $613.9 million, respectively. The consolidated balance sheets as of December 31, 2012 and 2011 include $445.0 
million and $250.0 million, respectively, of account receivable balances legally sold to third parties, as well as borrowings 
for equal amounts. At December 31, 2012, the interest rate on borrowings under this facility was approximately 1.4%.

Revolving Credit Facility

On December 12, 2012, WESCO Distribution and certain other subsidiaries of the Company entered into a US $600.0 
million revolving credit facility, which includes a letter of credit sub-facility of up to US $90.0 million in the aggregate, 
pursuant to the terms and conditions of an Amended and Restated Credit Agreement, dated as of December 12, 2012, 
among WESCO Distribution, the other U.S. Borrowers party thereto, WESCO Distribution Canada LP (“WESCO Canada”) 
and WDCC Enterprises, Inc. (“WDCC”), as Canadian Borrowers, the other Loan Parties party thereto, the Lenders party 
thereto, JPMorgan Chase Bank, N.A., as Administrative Agent, and JPMorgan Chase Bank, N.A., Toronto Branch, as 
Canadian Administrative Agent. Upon completion of the acquisition of EECOL on December 14, 2012, EECOL was added 
as a Canadian Borrower. The Revolving Credit Facility contains an accordion feature allowing WESCO Distribution to 
request increases to the borrowing commitments under the Credit Facility of up to US $100.0 million in the aggregate. The 
Revolving Credit Facility replaced WESCO Distribution’s US $400.0 million revolving credit facility originally entered into on 
August 22, 2011.

The Revolving Credit Facility matures in August 2016 and consists of two separate sub-facilities: (i) a Canadian sub-facility 
with a borrowing limit of up to US $400.0 million, which is collateralized by substantially all assets of WESCO Canada, 
WDCC and EECOL, and (ii) a U.S. sub-facility with a borrowing limit of up to US $600.0 million less the amount of 
outstanding borrowings under the Canadian sub-facility. The U.S. sub-facility is collateralized by substantially all assets of 
WESCO Distribution and its U.S. subsidiaries other than real property and accounts receivable sold or intended to be sold 
pursuant to the Receivables Facility. Availability under the Revolving Credit Facility is based upon the amount of eligible 
inventory and receivables applied against certain advance rates. The applicable interest rate for borrowings under the 
Revolving Credit Facility includes interest rate spreads based on available borrowing capacity that range between 1.50% 
and 2.00% for LIBOR-based borrowings and 0.50% and 1.00% for prime rate-based borrowings. The otherwise applicable 
interest rate is reduced by 0.25% if the Company’s leverage ratio falls below a ratio of 2.5 to 1.0. At December 31, 2012, 
the interest rate on borrowings under this facility was approximately 2.5%.

The Credit Agreement contains customary affirmative and negative covenants for credit facilities of this type, including 
limitations on WESCO Distribution, the Company and certain of the Company’s other subsidiaries with respect to 
indebtedness, liens, investments, mergers and acquisitions, dispositions of assets and transactions with affiliates. Subject 

2012 Annual Report36

to the terms of the Credit Agreement, the Company is permitted to pay dividends, repurchase common stock or repurchase 
indebtedness without limitation so long as pro forma combined availability under the Revolving Credit Facility and the 
Receivables Facility exceeds US $160.0 million and the adjusted fixed charge ratio is not less than a ratio of 1.1 to 1.0. 

During 2012, WESCO borrowed $787.0 million in the aggregate under the Revolving Credit Facility and made repayments 
in the aggregate amount of $605.7 million. During 2011, aggregate borrowings and repayments were $435.7 million and 
$398.9 million, respectively. At December 31, 2012, WESCO had a balance outstanding of $218.3 million under the 
Revolving Credit facility. WESCO had $270.9 million available under the Revolving Credit facility at December 31, 2012, 
after giving effect to outstanding letters and foreign lines of credit, as compared to approximately $299.3 million at 
December 31, 2011.

7.50% Senior Subordinated Notes due 2017

On December 10, 2012, WESCO International announced that WESCO Distribution would redeem all of its outstanding 
2017 Notes on January 9, 2013 (the “Redemption Date”) at a redemption price equal to 101.250% of the principal 
amount thereof plus accrued and unpaid interest to, but excluding, the Redemption Date, for a total of $1,030 per $1,000 
principal amount of 2017 Notes. The aggregate principal amount of 2017 Notes outstanding was $150.0 million. On 
December 11, 2012, in accordance with the terms of the Indenture, dated as of September 27, 2005, among WESCO 
Distribution, WESCO International and The Bank of New York Mellon, as trustee (the “Trustee”), WESCO Distribution 
irrevocably deposited with the Trustee funds sufficient to pay principal and interest of all outstanding 2017 Notes on the 
Redemption Date. As a result, the Indenture was satisfied and discharged. 

Foreign Lines of Credit

Certain foreign subsidiaries of WESCO have entered into uncommitted lines of credit, which serve as overdraft facilities, to 
support local operations. The maximum borrowing limit varies by facility and ranges between US $0.5 million and US $8.0 
million. The applicable interest rate for borrowings under these lines of credit varies by country and is governed by the 
applicable loan agreement. The foreign lines of credit are renewable on an annual basis and are fully and unconditionally 
guaranteed by WESCO Distribution. Accordingly, these lines directly reduce availability under the Revolving Credit Facility. 

1.75% Convertible Senior Debentures due 2026

Proceeds of $300 million were received in connection with the issuance of the 2026 Debentures by WESCO International 
in November 2006. On August 27, 2009, WESCO International completed an exchange offer pursuant to which it issued 
$345.0 million in aggregate principal amount of 2029 Debentures in exchange for approximately $299.7 million and $57.7 
million in aggregate principal amounts of its outstanding 2026 Debentures and 2025 Debentures, respectively (see the 
6.0% Convertible Senior Debentures due 2029 discussion below for additional information). On November 30, 2011, 
WESCO International announced that it would redeem all of its 2026 Debentures on January 3, 2012. WESCO International 
redeemed the remaining $0.1 million aggregate principal amount of outstanding 2026 Debentures at a redemption price 
equal to 100% of the principal amount plus accrued and unpaid interest. Following the redemption on January 3, 2012, 
there were no 2026 Debentures outstanding.

On January 1, 2009, we retrospectively applied the provisions of guidance concerning convertible debt instruments to the 
2026 Debentures. We utilized an interest rate of 6% to reflect the non-convertible market rate of our offering upon 
issuance. We amortized the debt discount over a five year period starting on the date of issuance. Non-cash interest 
expense of less than $0.1 million was recorded for the years ended December 31, 2011 and 2010.

6.0% Convertible Senior Debentures due 2029

On August 27, 2009, WESCO International completed an exchange offer pursuant to which it issued $345.0 million in 
aggregate principal amount of 2029 Debentures in exchange for approximately $299.7 million and $57.7 million in 
aggregate principal amounts of its outstanding 2026 Debentures and 2025 Debentures, respectively. As a result of the debt 
exchange, WESCO recorded a gain of $6.0 million, which included the write-off of debt issuance costs. The 2029 
Debentures were issued pursuant to an Indenture dated August 27, 2009 (the “Indenture”), with The Bank of New York 
Mellon, as trustee, and are unconditionally guaranteed on an unsecured senior subordinate basis by WESCO Distribution.

WESCO International, Inc.37

We utilized an interest rate of 13.875% to reflect the non-convertible debt borrowing rate of our offering upon issuance, 
which was determined based on discussions with its financial institutions and a review of relevant market data, and 
resulted in a $181.2 million discount to the 2029 Debenture balance and a net increase in additional capital of $106.5 
million. In addition, the financing costs related to the issuance of the 2029 Debentures were allocated between the debt 
and equity components. We are amortizing the debt discount and financing costs over the life of the instrument. Non-cash 
interest expense of $2.2 million and $2.5 million was recorded for the years ended December 31, 2012 and 2011, 
respectively. The debt discount amortization will approximate $2.9 million in 2013, $3.3 million in 2014, $3.8 million in 
2015, $4.3 million in 2016, and $4.9 million in 2017.

While the 2029 Debentures accrue interest at an effective interest rate of 13.875% (as described above), the coupon 
interest rate of 6.0% per annum is payable in cash semi-annually in arrears on each March 15 and September 15, and 
commenced March 15, 2010. Beginning with the six-month period commencing September 15, 2016, we will also pay 
contingent interest in cash during any six-month period in which the trading price of the 2029 Debentures for each of the 
five trading days ending on the second trading day immediately preceding the first day of the applicable six-month interest 
period equals or exceeds 120% of the principal amount of the 2029 Debentures. During any interest period when 
contingent interest shall be payable, the contingent interest payable per $1,000 principal amount of 2029 Debentures will 
equal 0.25% of the average trading price of $1,000 principal amount of the 2029 Debentures during the five trading days 
immediately preceding the first day of the applicable six-month interest period. In accordance with guidance related to 
derivatives and hedging, the contingent interest feature of the 2029 Debentures is an embedded derivative that is not 
considered clearly and closely related to the host contract. The contingent interest component had no significant value at 
December 31, 2012 or 2011.

The 2029 Debentures are convertible into cash, and in certain circumstances, shares of WESCO International’s common 
stock, $0.01 par value, at any time on or after September 15, 2028, or prior to September 15, 2028 in certain 
circumstances. The 2029 Debentures will be convertible based on an initial conversion rate of 34.6433 shares of common 
stock per $1,000 principal amount of the 2029 Debentures (equivalent to an initial conversion price of approximately 
$28.87 per share). The conversion rate and conversion price may be adjusted under certain circumstances.

At any time on or after September 15, 2016, the Company may redeem all or a part of the 2029 Debentures plus accrued 
and unpaid interest (including contingent interest and additional interest, if any) to, but not including, the redemption date. 
If WESCO International undergoes certain fundamental changes, as defined in the Indenture, prior to maturity, holders of 
the 2029 Debentures will have the right, at their option, to require WESCO International to repurchase for cash some or all 
of their 2029 Debentures at a repurchase price equal to 100% of the principal amount of the 2029 Debentures being 
repurchased, plus accrued and unpaid interest (including contingent interest and additional interest, if any) to, but not 
including, the repurchase date.

The following table sets forth the components of WESCO’s outstanding convertible debenture indebtedness: 

December 31, 2012 

December 31, 2011

Principal 
Balance 

Discount 

Net Carrying 
Amount 

Principal 
Balance 

Discount 

Net Carrying  

Amount

(In thousands)

Convertible Debentures:
2026   
2029   

Covenant Compliance

$ 

$ 

—  $ 

—  $ 

—  $ 

56  $ 

—  $ 

344,921 
344,921  $ 

(173,708) 
(173,708)  $ 

171,213 
171,213  $ 

344,962 
345,018  $ 

(175,908) 
(175,908)  $ 

56
169,054
169,110

We were in compliance with all relevant covenants contained in our debt agreements as of December 31, 2012.

Cash Flow

An analysis of cash flows for 2012 and 2011 follows:

2012 Annual Report 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
38

Operating Activities. Cash provided by operating activities for 2012 totaled $288.2 million, compared with $167.5 million 
of cash generated in 2011. Cash provided by operating activities included net income of $201.8 million and adjustments to 
net income totaling $61.6 million. Others sources of cash in 2012 were generated from a decrease in trade and other 
receivables of $36.4 million and a decrease in prepaid expenses and other current assets of $19.6 million. Primary uses of 
cash in 2012 included $29.3 million for the increase in inventory, $25.0 million for the decrease in other current and 
noncurrent liabilities, and $24.3 million for the decrease in payables. In 2011, primary sources of cash were net income of 
$196.2 million and adjustments to net income totaling $65.1 million. Other sources of cash in 2011 were generated from 
an increase in accounts payable of $101.7 million, an increase in accrued payroll and benefit costs of $10.0 million due to 
the increase in commissions, incentives, and benefit costs and a decrease in prepaid expenses and other current assets of 
$11.3 million. Primary uses of cash in 2011 included: $143.5 million for the increase in trade and other receivables, 
resulting from the increase in sales; $33.8 million for the increase in inventory; and $39.5 million for the decrease in other 
current and noncurrent liabilities.

Investing Activities. Net cash used by investing activities in 2012 was $1,311.0 million, compared with $81.3 million of 
net cash used in 2011. Included in 2012 were payments of $1,289.5 million for the acquisition of the businesses of 
EECOL, RS, Trydor, and Conney. During 2011, payments of $48.1 million were made for the acquisition of the businesses 
of RECO, LLC and Brews Supply, Ltd. Capital expenditures were $23.1 million and $33.3 million in 2012 and 2011, 
respectively.

Financing Activities. Net cash used by financing activities in 2012 was $1,044.0 million, compared with $70.9 million of 
net cash provided in 2011. During 2012, financing activities consisted of borrowings and repayments of $787.0 million and 
$605.7 million, respectively, related to our Revolving Credit Facility, borrowings and repayments of $672.1 million and 
$477.1 million, respectively, related to our Receivables Facility, borrowings of $840.8 related to our new Term Loan, and 
repayments of $150.0 related to early redemption of all the outstanding 2017 Notes. During 2011, borrowings and 
repayments of long-term debt of $435.7 million and $398.9 million, respectively, were made to our Revolving Credit 
Facility. Borrowings and repayments of $210.0 million and $330.0 million respectively, were applied to our Receivables 
Facility. 

Contractual Cash Obligations and Other Commercial Commitments

The following summarizes our contractual obligations, including interest, at December 31, 2012 and the effect such 
obligations are expected to have on liquidity and cash flow in future periods.

2013 

2014 to 2015 

2016 to 2017 

2018 – After 

Total

(In millions)

Contractual cash obligations (including interest): 
Debt, excluding debt discount 
$ 
Interest on indebtedness(1) 
Non-cancelable operating leases 
Total contractual cash obligations 

$ 

66.2  $ 
73.8 
53.5 

193.5  $ 

463.6  $ 
136.3 
76.0 

675.9  $ 

235.9  $ 
124.2 
52.1 

412.2  $ 

1,153.1  $ 
321.0 
53.1 
1,527.2  $ 

1,918.8
655.3
234.7
2,808.8

(1) 

Interest on the variable rate debt was calculated using the rates and balances outstanding at December 31, 2012.

Purchase orders for inventory requirements and service contracts are not included in the table above. Generally, our 
purchase orders and contracts contain clauses allowing for cancellation. We do not have significant agreements to 
purchase material or goods that would specify minimum order quantities. Also, we do not consider obligations to taxing 
authorities to be contractual obligations requiring disclosure due to the uncertainty surrounding the ultimate settlement and 
timing of these obligations. As such, we have not included $30.0 million of such estimated liability in the table above.

WESCO International, Inc. 
 
 
 
 
 
 
  
 
  
 
 
 
 
 
 
 
 
 
 
39

INFLATION

The rate of inflation, as measured by changes in the producer price index, affects different commodities, the cost of 
products purchased and ultimately the pricing of our different products and product classes to our customers. Our pricing 
related to inflation did not have a material impact on our sales revenue for the year ended December 31, 2012. Historically, 
price changes from suppliers have been consistent with inflation and have not had a material impact on the results of 
operations.

SEASONALITY

Our operating results are not significantly affected by seasonal factors. Sales during the first and fourth quarters are 
generally 1-3% below the sales of the second and third quarters, due to a reduced level of activity during the winter 
months of November through February. Sales typically increase beginning in March, with slight fluctuations per month 
through October. During periods of economic expansion or contraction our sales by quarter have varied significantly from 
this pattern.

IMPACT OF RECENTLY ISSUED ACCOUNTING STANDARDS

See Note 2 of our Notes to the Consolidated Financial Statements for information regarding the effect of new accounting 
pronouncements.

Item 7A. Quantitative and Qualitative Disclosures about Market Risks.

FOREIGN CURRENCY RISKS

Approximately 79% of our sales are denominated in U.S. dollars and are primarily from customers in the United States. As 
a result, currency fluctuations are currently not material to our operating results. We do have foreign subsidiaries located in 
North America, South America, Europe, Africa, Asia and Australia and may establish additional foreign subsidiaries in the 
future. Accordingly, we may derive a larger portion of our sales from international operations, and a portion of these sales 
may be denominated in foreign currencies. As a result, our future operating results could become subject to fluctuations in 
the exchange rates of those currencies in relation to the U.S. dollar. Furthermore, to the extent that we engage in 
international sales denominated in U.S. dollars, an increase in the value of the U.S. dollar relative to foreign currencies 
could make our products less competitive in international markets. We have monitored and will continue to monitor our 
exposure to currency fluctuations.

INTEREST RATE RISK

Fixed Rate Borrowings: Approximately 19% of our debt portfolio is comprised of fixed rate debt. At various times, we have 
refinanced our debt to mitigate the impact of interest rate fluctuations. As the 2029 Debentures were issued at fixed rates, 
interest expense would not be impacted by interest rate fluctuations, although market value would be. The aggregate fair 
value of the 2029 Debentures was $853.7 million at December 31, 2012. Interest expense on our other fixed rate debt also 
would not be impacted by changes in market interest rates. For this fixed rate debt, fair value approximated carrying value 
at December 31, 2012 (see Note 7 to the Consolidated Financial Statements).

2012 Annual Report40

Floating Rate Borrowings: The majority of our variable rate borrowings at December 31, 2012 were comprised of the 
amounts outstanding under the Term Loan Facility, Revolving Credit Facility and the Receivables Facility. The fair value of 
these debt instruments at December 31, 2012 approximated carrying value, which totaled $1,514.1 million. We entered 
into the Term Loan Facility on December 12, 2012 and the proceeds were primarily used to finance the acquisition of 
EECOL. Borrowings under the Term Loan Facility bear interest at 1.0% or, if greater, the applicable LIBOR (London 
Interbank Offered Rate) / CDOR (Canadian Dealer Offered Rate) or base rates plus applicable margins and therefore are 
subject to fluctuations in interest rates. We borrow under our Revolving Credit Facility and Receivables Facility for general 
corporate purposes, including working capital requirements and capital expenditures. Borrowings under our Revolving 
Credit Facility bear interest at base rates plus applicable margins, whereas borrowings under the Receivables Facility bear 
interest at the 30 day LIBOR or 30 day commercial paper rate plus applicable margins. A 100 basis point increase or 
decrease in interest rates would not have a significant impact on future earnings under our current capital structure.

Item 8. Financial Statements and Supplementary Data.

The information required by this item is set forth in our Consolidated Financial Statements contained in this Annual Report 
on Form 10-K. Specific financial statements can be found at the pages listed below:

WESCO International, Inc. 

Report of Independent Registered Public Accounting Firm   
Consolidated Balance Sheets as of December 31, 2012 and 2011 
Consolidated Statements of Comprehensive Income for the years ended December 31, 2012, 2011 and 2010   
Consolidated Statements of Stockholders’ Equity for the years ended December 31, 2012, 2011 and 2010   
Consolidated Statements of Cash Flows for the years ended December 31, 2012, 2011 and 2010 
Notes to Consolidated Financial Statements 

PAGE

41
42
43
44
46
47

WESCO International, Inc. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
41

Report of Independent Registered Public Accounting Firm

TO THE BOARD OF DIRECTORS AND SHAREHOLDERS OF WESCO INTERNATIONAL, INC.,

In our opinion, the accompanying consolidated balance sheets and the related consolidated statements of comprehensive 
income, stockholders’ equity and cash flows present fairly, in all material respects, the financial position of WESCO 
International, Inc. and its subsidiaries at December 31, 2012 and December 31, 2011, and the results of their operations and 
their cash flows for each of the three years in the period ended December 31, 2012 in conformity with accounting principles 
generally accepted in the United States of America. In addition, in our opinion, the financial statement schedule listed in the 
index appearing under Item 15(a)(2) presents fairly, in all material respects, the information set forth therein when read in 
conjunction with the related consolidated financial statements. Also in our opinion, the Company maintained, in all material 
respects, effective internal control over financial reporting as of December 31, 2012, based on criteria established in Internal 
Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). 
The Company’s management is responsible for these financial statements and financial statement schedule, for maintaining 
effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial 
reporting, included in Management’s Report on Internal Control over Financial Reporting appearing under Item 9A. Our 
responsibility is to express opinions on these financial statements, on the financial statement schedule, and on the Company’s 
internal control over financial reporting based on our integrated audits. We conducted our audits in accordance with the 
standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and 
perform the audits to obtain reasonable assurance about whether the financial statements are free of material misstatement 
and whether effective internal control over financial reporting was maintained in all material respects. Our audits of the 
financial statements included examining, on a test basis, evidence supporting the amounts and disclosures in the financial 
statements, assessing the accounting principles used and significant estimates made by management, and evaluating the 
overall financial statement presentation. Our audit of internal control over financial reporting included obtaining an 
understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and 
evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included 
performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a 
reasonable basis for our opinions.

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the 
reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally 
accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures 
that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and 
dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to 
permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and 
expenditures of the company are being made only in accordance with authorizations of management and directors of the 
company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or 
disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, 
projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate 
because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

As described in Management’s Report on Internal Control over Financial Reporting, management has excluded EECOL 
Electric Corporation (EECOL) and Conney Safety Products (Conney) from its assessment of internal control over financial 
reporting as of December 31, 2012 because they were acquired by the Company in a purchase business combination during 
2012. We have also excluded EECOL and Conney from our audit of internal control over financial reporting. EECOL and 
Conney are wholly-owned subsidiaries whose total assets represent $1.4 billion and $144.8 million, respectively, and total 
revenues of $24.1 million and $39.0 million, respectively, of the related consolidated financial statement amounts as of and 
for the year ended December 31, 2012.

PricewaterhouseCoopers LLP 
Pittsburgh, Pennsylvania 
February 27, 2013 

2012 Annual Report42

Consolidated Balance Sheets

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES

December 31,   

(Dollars in thousands, except share data)

Assets
Current Assets: 
  Cash and cash equivalents 

 Trade accounts receivable, net of allowance for doubtful accounts  
  of $17,242 and $21,590 in 2012 and 2011, respectively 

  Other accounts receivable 

Inventories, net  

  Current deferred income taxes (Note 10) 

Income taxes receivable 

  Prepaid expenses and other current assets   

  Total current assets 

  Property, buildings and equipment, net (Note 6) 

Intangible assets, net (Note 3) 

  Goodwill (Note 3) 
  Deferred income taxes (Note 10) 
  Other assets  

  Total assets   

Liabilities and Stockholders’ Equity
Current Liabilities:
  Accounts payable 
  Accrued payroll and benefit costs (Note 12)  
  Short-term debt (Note 7) 
  Current portion of long-term debt (Note 7) 
  Bank overdrafts 
  Current deferred income taxes (Note 10) 
  Other current liabilities 

  Total current liabilities 

 Long-term debt, net of discount of $183,644 and $175,908 in 2012 and 2011,  
  respectively (Note 7) 

  Deferred income taxes (Note 10) 
  Other noncurrent liabilities (Note 12) 

  Total liabilities 

Commitments and contingencies (Note 14)
Stockholders’ Equity:

 Preferred stock, $.01 par value; 20,000,000 shares authorized,  
  no shares issued or outstanding (Note 8) 
 Common stock, $.01 par value; 210,000,000 shares authorized,  
  57,824,548 and 57,021,523 shares issued and 44,061,451 and  
  43,424,031 shares outstanding in 2012 and 2011, respectively (Note 8) 
 Class B nonvoting convertible common stock, $.01 par value;  
  20,000,000 shares authorized, 4,339,431 issued and  
  no shares outstanding in 2012 and 2011, respectively   

  Additional capital (Note 8) 
  Retained earnings 

 Treasury stock, at cost; 18,102,528 and 17,936,923  
  shares in 2012 and 2011, respectively 
  Accumulated other comprehensive income   

  Total WESCO International stockholders’ equity 
  Noncontrolling interest 
  Total stockholders’ equity 
  Total liabilities and stockholders’ equity 

The accompanying notes are an integral part of the consolidated financial statements.

2012 

2011

  $ 

86,099  $ 

63,869

  1,036,235 
89,801 
793,974 
42,151 
8,849 
44,728 
  2,101,837 
210,723 
496,761 
  1,777,797 
1,342 
41,169 

939,422
43,442
626,967
28,217
12,206
23,297
  1,737,420
133,550
156,874
  1,008,127
18,090
24,391
  $  4,629,629  $  3,078,452

  $ 

706,580  $ 

86,375 
30,136 
9,623 
39,641 
1,018 
134,622 
  1,007,995 

642,777
76,915
—
6,411
47,489
—
72,254
845,846

  1,695,413 
300,470 
72,060 

642,922
223,005
20,769
  $  3,075,938  $  1,732,542

— 

—

579 

571

43 
  1,065,550 
  1,092,719 

43
  1,036,867
891,789 

(604,050) 
(1,044) 
  1,553,797 
(106) 
  1,553,691 

(593,329)
10,057
  1,345,998
(88)
  1,345,910
  $  4,629,629  $  3,078,452

WESCO International, Inc. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Consolidated Statements of Comprehensive Income

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES

Year Ended December 31,  

(In thousands, except per share data)

Net sales  
Cost of goods sold (excluding depreciation and amortization below) 
Selling, general and administrative expenses 
Depreciation and amortization 
Income from operations 

Interest expense, net 
Loss on debt extinguishment (Note 7) 
Other income (Note 9) 

Income before income taxes 
Provision for income taxes (Note 10) 
  Net income   
Less: Net loss attributable to noncontrolling interest 
Net income attributable to WESCO International, Inc. 

43

2012 

2011 

2010

  $  6,579,301  $  6,125,718  $  5,063,862
  4,065,425
763,583
23,935
210,919
57,563
—
(4,285)
157,641
42,164
115,477
—
115,477

  4,889,149 
871,983 
31,607 
332,979 
53,603 
— 
— 
279,376 
83,136 
196,240 
(11) 
196,251  $ 

  5,247,855 
961,014 
37,561 
332,871 
47,762 
3,470 
— 
281,639 
79,880 
201,759 
(18) 
201,777  $ 

  $ 

Comprehensive Income:
  Foreign currency translation adjustment 
  Comprehensive income attributable to WESCO International, Inc. 

(9,013) 
192,764  $ 

(12,576) 
183,675  $ 

11,648
127,125

  $ 

Earnings per share attributable to WESCO International, Inc. (Note 11)
  Basic  

  Diluted 

The accompanying notes are an integral part of the consolidated financial statements.

  $ 

  $ 

4.62  $ 

4.54  $ 

3.95  $ 

3.96  $ 

2.72

2.50

2012 Annual Report 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
44

Consolidated Statements of Stockholders’ Equity

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES

(Dollars in thousands, except share data)

Balance, December 31, 2009 
Exercise of stock options, including tax benefit of $3,082 
Stock-based compensation expense 
Conversion of 2025 debentures 
Net income   
Translation adjustment 
Balance, December 31, 2010 
Exercise of stock options, including tax benefit of $5,365, and vesting of  
  restricted stock units, net of taxes 
Stock-based compensation expense 
Conversion of 2029 debentures 
Issuance of treasury stock 
Tax liability related to exercise of restricted stock units and retirement of common stock 
Noncontrolling interest 
Net income   
Translation adjustment 
Balance, December 31, 2011 
Exercise of stock options, including tax benefit of $11,139 
Stock-based compensation expense 
Conversion of 2029 debentures 
Tax liability related to exercise of restricted stock units and retirement of common stock 
Noncontrolling interest 
Net income (loss)   
Translation adjustment 
Balance, December 31, 2012 

The accompanying notes are an integral part of the consolidated financial statements.

Common Stock 

Amount 

Shares 

Class B Common Stock 

Amount 

Shares 

Additional 

Capital 

Treasury Stock 

Noncontrolling 

Comprehensive

Amount 

Shares 

Interest 

Income (Loss)

  $ 

560 
3 

3 

55,967,824 
268,213 

340,213 

$ 

43 

  4,339,431  $ 

992,855  $ 

582,199  $ 

(590,353) 

 (17,890,459)  $ 

—  $ 

10,985

(654) 

(15,281)

  $ 

566 

56,576,250 

$ 

43 

  4,339,431  $  1,018,683  $ 

697,676  $ 

(591,007) 

 (17,905,740)  $ 

—  $ 

6 

531,121 

589 

(1) 

(86,437) 

  $ 

571 
8 

57,021,523 
829,401 

688 
(27,064) 

  $ 

579 

57,824,548 

$ 

43 

  4,339,431  $  1,065,550  $  1,092,719  $ 

(604,050) 

 (18,102,528)  $ 

(106)  $ 

Retained 

Earnings 

(Deficit) 

115,477

(2,138)   

196,251 

4,852 

15,751

5,225

5,783 

15,407

(5)

(582) 

(2,419) 

14,310 

15,088

(5)

(710) 

(7,838) 

(146,614)

957 

4,559 

28,994

86,437

(847)   

1,556 

27,064

201,777

Accumulated 

Other 

11,648

22,633

(12,576)

(11,101)

(1,044)

(77)

(11)

(18)

$ 

43 

  4,339,431  $  1,036,867  $ 

891,789  $ 

(593,329) 

 (17,936,923)  $ 

(88)  $ 

 10,057

(12,277) 

(192,669)

WESCO International, Inc. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
 
 
 
  
 
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
  
 
    
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
 
  
 
 
  
 
  
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
 
  
 
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Consolidated Statements of Stockholders’ Equity

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES

Common Stock 

Amount 

Shares 

Class B Common Stock 
Shares 

Amount 

Additional 
Capital 

Retained 
Earnings 
(Deficit) 

Treasury Stock 

Amount 

Shares 

Noncontrolling 
Interest 

Accumulated 
Other 
Comprehensive
Income (Loss)

(Dollars in thousands, except share data)

Balance, December 31, 2009 

Exercise of stock options, including tax benefit of $3,082 

  $ 

560 

55,967,824 

$ 

43 

  4,339,431  $ 

582,199  $ 

(590,353) 
(654) 

 (17,890,459)  $ 
(15,281)

—  $ 

10,985

992,855  $ 
4,852 
15,751
5,225

115,477

Exercise of stock options, including tax benefit of $5,365, and vesting of  

  $ 

566 

56,576,250 

$ 

43 

  4,339,431  $  1,018,683  $ 

697,676  $ 

(591,007) 

 (17,905,740)  $ 

—  $ 

11,648
22,633

45

5,783 
15,407
(5)
(582) 
(2,419) 

(2,138)   

196,251 

(7,838) 

(146,614)

957 
4,559 

28,994
86,437

(77)
(11)

(88)  $ 

(12,576)
 10,057

$ 

43 

  4,339,431  $  1,036,867  $ 

891,789  $ 

(593,329) 
(12,277) 

 (17,936,923)  $ 
(192,669)

14,310 
15,088
(5)
(710) 

(847)   

1,556 

27,064

(18)

201,777

The accompanying notes are an integral part of the consolidated financial statements.

  $ 

579 

57,824,548 

$ 

43 

  4,339,431  $  1,065,550  $  1,092,719  $ 

(604,050) 

 (18,102,528)  $ 

(106)  $ 

(11,101)
(1,044)

3 

3 

268,213 

340,213 

6 

531,121 

589 

Stock-based compensation expense 

Conversion of 2025 debentures 

Net income   

Translation adjustment 

Balance, December 31, 2010 

  restricted stock units, net of taxes 

Stock-based compensation expense 

Conversion of 2029 debentures 

Issuance of treasury stock 

Noncontrolling interest 

Net income   

Translation adjustment 

Balance, December 31, 2011 

Noncontrolling interest 

Net income (loss)   

Translation adjustment 

Balance, December 31, 2012 

Tax liability related to exercise of restricted stock units and retirement of common stock 

(1) 

(86,437) 

Exercise of stock options, including tax benefit of $11,139 

Stock-based compensation expense 

Conversion of 2029 debentures 

Tax liability related to exercise of restricted stock units and retirement of common stock 

  $ 

571 

8 

57,021,523 

829,401 

688 

(27,064) 

2012 Annual Report 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
 
 
 
  
 
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
  
 
    
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
 
  
 
 
  
 
  
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
 
  
 
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
46

Consolidated Statements of Cash Flows

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES

Year Ended December 31,  

(In thousands)

Operating Activities:
Net income   
Adjustments to reconcile net income to net cash  
  provided by operating activities:
  Depreciation and amortization 
  Stock-based compensation expense 
  Amortization of debt issuance costs 
  Amortization of debt discount 
Loss on debt extinguishment 
(Gain) loss on sale of property, buildings and equipment  

  Asset impairment charge 
  Equity income, net of distributions in 2010 of $1,864 
  Excess tax benefit from stock-based compensation 

Interest related to uncertain tax positions 

  Deferred income taxes 
  Changes in assets and liabilities

  Trade and other receivables, net 

Inventories, net 

  Prepaid expenses and other current assets 
  Accounts payable 
  Accrued payroll and benefit costs 
  Other current and noncurrent liabilities 

  Net cash provided by operating activities 

Investing Activities:
Capital expenditures 
Acquisition payments, net of cash acquired 
Proceeds from sale of subsidiary 
Equity distribution   
Collection of note receivable 
Proceeds from sale of assets 

  Net cash used in investing activities 

Financing Activities:
Proceeds from issuance of short-term debt 
Repayments of short-term debt 
Proceeds from issuance of long-term debt 
Repayments of long-term debt 
Debt issuance costs 
Proceeds from the exercise of stock options 
Excess tax benefit from stock-based compensation 
Repurchase of common stock 
(Decrease) increase in bank overdrafts 
Payments on capital lease obligations 

  Net cash provided (used) by financing activities 
Effect of exchange rate changes on cash and cash equivalents  
Net change in cash and cash equivalents 
Cash and cash equivalents at the beginning of period 
Cash and cash equivalents at the end of period  
Supplemental disclosures:
Cash paid for interest 
Cash paid for taxes 
Non-cash investing and financing activities:
  Property, buildings and equipment acquired through capital leases 

The accompanying notes are an integral part of the consolidated financial statements.

2012 

2011 

2010

  $ 

201,759  $ 

196,240  $ 

115,477

37,561 
15,088 
2,655 
2,260 
1,595 
(546) 
— 
— 
(11,358) 
(3,371) 
17,685 

36,415 
(29,339) 
19,588 
(24,346) 
(2,498) 
25,036 
288,184 

(23,084) 
  (1,289,480) 
— 
— 
— 
1,558 
  (1,311,006) 

31,607 
15,407 
4,435 
2,499 
— 
304 
— 
— 
(5,408) 
1,901 
14,373 

(143,491) 
(33,769) 
11,268 
101,677 
9,988 
(39,498) 
167,533 

(33,347) 
(48,093) 
— 
— 
— 
97 
(81,343) 

23,935
15,752
2,584
4,262
—
(224)
3,793
(2,420)
(3,217)
4,980
20,982

(118,478)
(33,956)
12,641
53,902
34,422
(7,152)
127,283

(15,132)
(265,397)
40,000
4,054
15,000
932
(220,543)

24,569 
(9,969) 
  2,299,797 
  (1,244,030) 
(17,757) 
3,174 
11,358 
(12,280) 
(8,283) 
(2,531) 
  1,044,048 
1,004 
22,230 
63,869 
86,099  $ 

  $ 

— 
— 
648,557 
(730,897) 
(4,703) 
419 
5,408 
(7,840) 
19,899 
(1,751) 
(70,908) 
(4,990) 
10,292 
53,577 
63,869  $ 

—
—
  1,454,479
  (1,419,526)
(2,553)
1,771
3,217
(655)
(4,601)
(1,497)
30,635
3,873
(58,752)
112,329
53,577

  $ 

43,713  $ 
51,733 

43,446  $ 
79,189 

46,899
11,044

3,216 

1,112 

301

WESCO International, Inc. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
47

Notes to Consolidated Financial Statements

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES

1. ORGANIZATION

WESCO International, Inc. (“WESCO International”) and its subsidiaries (collectively, “WESCO”), headquartered in 
Pittsburgh, Pennsylvania, is a full-line distributor of electrical, industrial and communications maintenance, repair and 
operating (“MRO”) and original equipment manufactures (“OEM”) products, construction materials, and advanced supply 
chain management and logistics services used primarily in the industrial, construction, utility and commercial, institutional 
and government markets. We serve over 65,000 active customers globally, through approximately 475 full service branches 
and nine distribution centers located primarily in the United States, Canada and Mexico, with operations in 15 additional 
countries.

2. ACCOUNTING POLICIES

Basis of Consolidation

The consolidated financial statements include the accounts of WESCO International and all of its subsidiaries. All significant 
intercompany accounts and transactions have been eliminated in consolidation.

Use of Estimates

The preparation of financial statements in conformity with generally accepted accounting principles in the United States of 
America requires management to make estimates and assumptions that affect the amounts reported in the consolidated 
financial statements and accompanying disclosures. Although these estimates are based on management’s best knowledge 
of current events and actions WESCO may undertake in the future, actual results may ultimately differ from the estimates.

Revenue Recognition

Revenues are recognized for product sales when title, ownership and risk of loss pass to the customer or for services when 
the service is rendered. In the case of stock sales and special orders, a sale occurs at the time of shipment from WESCO’s 
distribution point, as the terms of WESCO’s sales are predominantly FOB shipping point. In cases where WESCO processes 
customer orders but ships directly from its suppliers, revenue is recognized once product is shipped and title has passed. 
In all cases, revenue is recognized once the sales price to the customer is fixed or is determinable and WESCO has 
reasonable assurance as to the collectability. 

In certain customer arrangements, WESCO provides services such as inventory management. WESCO may perform some 
or all of the following services for customers: determine inventory stocking levels; establish inventory reorder points; launch 
purchase orders; receive material; put away material; and pick material for order fulfillment. WESCO recognizes revenue for 
services rendered during the period based upon a previously negotiated fee arrangement. WESCO also sells inventory to 
these customers and recognizes revenue at the time title and risk of loss transfers to the customer. The amount of revenue 
attributed to these services totaled $17.6 million, $10.8 million, and $11.1 million in 2012, 2011 and 2010, respectively.

Selling, General and Administrative Expenses

WESCO includes warehousing, purchasing, branch operations, information services, and marketing and selling expenses in 
this category, as well as other types of general and administrative costs.

Supplier Volume Rebates

WESCO receives volume rebates from certain suppliers based on contractual arrangements with such suppliers. Volume 
rebates are included within other accounts receivable on the balance sheet, and represent the estimated amounts due to 
WESCO under the rebate provisions of the various supplier contracts. The corresponding rebate income is recorded as a 
reduction of cost of goods sold. The appropriate level of such income is derived from the level of actual purchases made by 
WESCO from suppliers. Receivables under the supplier rebate program were $68.7 million at December 31, 2012 and 
$38.5 million at December 31, 2011. Supplier volume rebate rates have historically ranged between approximately 0.8% 
and 1.3% of sales depending on market conditions. In 2012, the rebate rate was 1.3%.

2012 Annual Report48

Shipping and Handling Costs and Fees

WESCO records the costs and fees associated with transporting its products to customers as a component of selling, 
general and administrative expenses. These costs totaled $49.9 million, $50.9 million and $42.4 million in 2012, 2011 and 
2010, respectively.

Cash Equivalents

Cash equivalents are defined as highly liquid investments with original maturities of 90 days or less when purchased.

Asset Securitization

WESCO maintains control of the receivables transferred pursuant to its accounts receivable securitization program (the 
“Receivables Facility”); therefore the transfers do not qualify for “sale” treatment. As a result, the transferred receivables 
remain on the balance sheet, and WESCO recognizes the related secured borrowing. The expenses associated with the 
Receivables Facility are reported as interest expense in the statement of income.

Allowance for Doubtful Accounts

WESCO maintains allowances for doubtful accounts for estimated losses resulting from the inability of its customers to 
make required payments. WESCO has a systematic procedure using estimates based on historical data and reasonable 
assumptions of collectability made at the local branch level and on a consolidated corporate basis to calculate the 
allowance for doubtful accounts. If the financial condition of WESCO’s customers were to deteriorate, resulting in an 
impairment of their ability to make payments, additional allowances may be required. The allowance for doubtful accounts 
was $17.2 million at December 31, 2012 and $21.6 million at December 31, 2011. The total amount recorded as selling, 
general and administrative expense related to bad debts was $1.1 million, $6.6 million and $6.4 million for 2012, 2011 
and 2010, respectively.

Inventories

Inventories primarily consist of merchandise purchased for resale and are stated at the lower of cost or market. Cost is 
determined principally under the average cost method. WESCO makes provisions for obsolete or slow-moving inventories 
as necessary to reflect reduction in inventory value. WESCO writes down its inventory to its net realizable value based on 
internal factors derived from historical analysis of actual losses. Looking back, WESCO identifies items at risk of becoming 
obsolete, which are defined as excess of 36 months supply relative to demand or movement. WESCO then analyzes the 
ultimate disposition of previously identified excess inventory items, such as sold, returned to supplier, or scrapped. This 
item by item analysis allows WESCO to develop an estimate of the historical likelihood that an item identified as being in 
excess supply ultimately becomes obsolete. WESCO applies the estimate to inventory items currently in excess of 36 
months supply, and reduces its inventory carrying value by the derived amount. Reserves for excess and obsolete 
inventories were $16.7 million and $14.6 million at December 31, 2012 and 2011, respectively. The total expense related 
to excess and obsolete inventories, included in cost of goods sold, was $11.4 million, $5.5 million and $7.5 million for 
2012, 2011 and 2010, respectively. WESCO absorbs into the cost of inventory the general and administrative expenses 
related to inventory such as purchasing, receiving and storage and at December 31, 2012 and 2011, $62.2 million and 
$47.6 million, respectively, of these costs were included in ending inventory.

Other Assets

WESCO amortizes deferred financing fees over the term of the various debt instruments. Deferred financing fees in the 
amount of $17.8 million were incurred during the year ending December 31, 2012. As of December 31, 2012 and 2011, 
the amount of other assets related to unamortized deferred financing fees was $26.4 million and $12.9 million, 
respectively.

Property, Buildings and Equipment

Property, buildings and equipment are recorded at cost. Depreciation expense is determined using the straight-line method 
over the estimated useful lives of the assets. Leasehold improvements are amortized over either their respective lease terms 
or their estimated lives, whichever is shorter. Estimated useful lives range from five to forty years for leasehold 
improvements and buildings and three to ten years for furniture, fixtures and equipment.

WESCO International, Inc.49

Capitalized computer software costs are amortized using the straight-line method over the estimated useful life, typically 
three to five years, and are reported at the lower of unamortized cost.

Expenditures for new facilities and improvements that extend the useful life of an asset are capitalized. Ordinary repairs 
and maintenance are expensed as incurred. When property is retired or otherwise disposed of, the cost and the related 
accumulated depreciation are removed from the accounts and any related gains or losses are recorded and reported as 
selling, general and administrative expenses.

WESCO assesses its long-lived assets for impairment by periodically reviewing operating performance and respective 
utilization of real and tangible assets. Upon closure of any branch, asset usefulness and remaining life are evaluated and 
charges are taken as appropriate. Of WESCO’s $210.7 million net book value of property, plant and equipment as of 
December 31, 2012, $136.8 million consists of land, buildings and leasehold improvements and are geographically 
dispersed among WESCO’s 475 branches and nine distribution centers, mitigating the risk of impairment. Approximately 
$28.5 million of assets consist of computer equipment and capitalized software and are evaluated for use and serviceability 
relative to carrying value. The remaining fixed assets, mainly of furniture and fixtures, warehousing equipment and 
transportation equipment, are similarly evaluated for serviceability and use.

Goodwill and Indefinite Life Intangible Assets

Goodwill and indefinite life intangible assets are tested for impairment annually during the fourth quarter using information 
available at the end of September, or more frequently if events or circumstances occur indicating that their carrying value 
may not be recoverable. The evaluation of impairment involves comparing the current fair value of goodwill and indefinite 
life intangible assets to the recorded value. WESCO estimates the fair value of goodwill using a combination of discounted 
cash flow analyses and market multiples. Assumptions used for these fair value techniques are based on a combination of 
historical results, current forecasts, market data and recent economic events. WESCO evaluates the recoverability of 
indefinite life intangible assets using a discounted cash flow analysis based on projected financial information. The 
determination of fair value involves significant judgment and management applies its best judgment when assessing the 
reasonableness of financial projections. At December 31, 2012 and 2011, goodwill and indefinite life trademarks totaled 
$1,882.9 million and $1,055.0 million, respectively. No impairment losses were identified in 2012 as a result of this review. 
However, two trademarks valued at $18.1 million are sensitive to a further decline in financial performance. WESCO is 
taking actions to improve its future financial performance; however, WESCO cannot predict whether or not there will be 
certain events that could adversely affect the reported value of these trademarks. 

Definite Lived Intangible Assets

Intangible assets are amortized over 4 to 20 years. A portion of intangible assets related to certain customer relationships 
are amortized using an accelerated method whereas all other intangible assets subject to amortization use a straight-line 
method which reflects the pattern in which the economic benefits of the respective assets are consumed or otherwise 
used. Intangible assets are tested for impairment if events or circumstances occur indicating that the respective asset 
might be impaired.

Insurance Programs

WESCO uses commercial insurance for auto, workers’ compensation, casualty and health claims as a risk-reduction 
strategy to minimize catastrophic losses. The Company’s strategy involves large deductibles where WESCO must pay all 
costs up to the deductible amount. WESCO estimates the reserve based on historical incident rates and costs. The 
assumptions included in developing this accrual include the period of time from incurrence of a claim until the claim is 
paid by the insurance provider. The total liability related to the insurance programs was $11.3 million at December 31, 
2012 and $9.7 million at December 31, 2011.

Income Taxes

Income taxes are accounted for under the liability method in accordance with income tax accounting guidance. Deferred 
tax assets and liabilities are determined based on differences between the financial reporting and tax basis of assets and 
liabilities and are measured using the enacted tax rates and laws that will be in effect when the differences are expected to 
reverse. Valuation allowances, if any, are provided when it is more likely than not that a portion or all of a deferred tax asset 
may not be realized.

2012 Annual Report50

WESCO accounts for uncertainty in income taxes using a recognition threshold and measurement attribute prescribed by 
income tax accounting guidance. WESCO frequently reviews tax issues and positions taken on tax returns to determine the 
need and amount of contingency reserves necessary to cover any probable audit adjustments. WESCO recognizes interest 
related to unrecognized tax benefits as part of interest expense. Penalties are recognized as part of income tax expense.

Convertible Debentures

WESCO separately accounts for the liability and equity components of its convertible debentures in a manner that reflects 
its non-convertible debt borrowing rate. WESCO estimates its non-convertible debt borrowing rate through a combination of 
discussions with its financial institutions and review of relevant market data. The discounts to the convertible note balances 
are amortized to interest expense, using the effective interest method, over the implicit life of the Debentures.

Foreign Currency

The local currency is the functional currency for the majority of WESCO’s operations outside the United States. Assets and 
liabilities of these operations are translated to U.S. dollars at the exchange rate in effect at the end of each period. Income 
statement accounts are translated at the average exchange rate prevailing during the period. Translation adjustments 
arising from the use of differing exchange rates from period to period are included as a component of other comprehensive 
income within stockholders’ equity. Gains and losses from foreign currency transactions are included in net income for the 
period.

Defined Benefit Pension Plan

In connection with the December 14, 2012 acquisition of EECOL, the Company assumed a contributory defined benefit 
plan covering all Canadian employees of EECOL. The plan provides retirement benefits based upon earnings and credited 
service, and participants contribute 2% or 4% of their earnings to the plan depending on their employment level. 

The Company also assumed EECOL’s Supplemental Executive Retirement Plan (SERP) which provides additional pension 
benefits to certain executives based on earnings, credited service, and executive service. 

Liabilities and expenses for pension benefits are determined using actuarial methodologies and incorporate significant 
assumptions, including the interest rate used to discount the future estimated cash flows, the expected long-term rate  
of return on plan assets, and several assumptions relating to the employee workforce (salary increases, retirement age,  
and mortality).

The interest rate used to discount future estimated cash flows is determined using a high quality corporate bonds yield 
curve model developed with the assistance of an external actuary. The cash flows of the plans’ projected benefit obligations 
are discounted using a single equivalent rate derived from yields on high quality corporate bonds. The yield curve model 
parallels the plans’ projected cash flows. The discount rate used to determine benefit obligations for the Canadian pension 
was 4.5% in 2012. The impact on the liabilities of a change in the discount rate of one quarter percent would be 
approximately $5.1 million and either a charge or credit of $0.3 million to after-tax earnings in the following year.

The expected long-term rate of return on plan assets is applied to the fair market-related value of plan assets. 

Stock-Based Compensation

WESCO’s stock-based employee compensation plans are comprised of stock options, stock-settled stock appreciation 
rights, restricted stock units, and performance-based awards. Compensation cost for all stock-based awards is measured 
at fair value on the date of grant, and compensation cost is recognized, net of estimated forfeitures, over the service period 
for awards expected to vest. The fair value of stock options and stock-settled appreciation rights is determined using the 
Black-Scholes valuation model. Expected volatilities are based on historical volatility of WESCO’s common stock. The 
expected life of stock options and stock-settled appreciation rights is estimated using historical data pertaining to option 
exercises and employee terminations. The risk-free rate is based on the U.S. Treasury yields in effect at the time of grant. 
The forfeiture assumption is based on WESCO’s historical employee behavior that is reviewed on an annual basis. The fair 
value of restricted stock units is determined by the grant-date closing price of WESCO’s common stock. Performance-
based awards are valued using a Monte Carlo simulation model. The probability of meeting market criteria is considered 

WESCO International, Inc.51

when calculating the estimated fair market value on the date of grant. These awards are accounted for as awards with 
market conditions, which are recognized over the service period, regardless of whether the market conditions are achieved 
and the awards ultimately vest. No dividends are assumed for stock based awards.

Treasury Stock

Common stock purchased for treasury is recorded at cost. At the date of subsequent reissue, the treasury stock account is 
reduced by the cost of such stock, with cost determined on a weighted average basis.

Fair Value of Financial Instruments

The Company’s financial instruments consist of cash and cash equivalents, accounts receivable, accounts payable and 
other accrued liabilities, and outstanding indebtedness. The estimated fair value of the Company’s outstanding 
indebtedness described in Note 7 at December 31, 2012 and 2011 was $2,423.7 million and $1,178.9 million, 
respectively. The aggregate fair value of the senior notes and debentures was approximately $1,704.5 million and $850.9 
million at December 31, 2012 and 2011, respectively. The fair values of these fixed rate facilities are estimated based upon 
market price quotes. The fair values of the mortgage facility, the Term Loan, the accounts receivable securitization facility 
(the “Receivables Facility”) and the revolving credit facility (“the Revolving Credit Facility”), approximated carrying values. 
The fair values for these facilities are based upon market price quotes and market comparisons available for instruments 
with similar terms and maturities. For all remaining WESCO financial instruments, carrying values are considered to 
approximate fair value due to their short maturities.

Environmental Expenditures

WESCO has facilities and operations that distribute certain products that must comply with environmental regulations and 
laws. Expenditures for current operations are expensed or capitalized, as appropriate. Expenditures relating to existing 
conditions caused by past operations, and that do not contribute to future revenue, are expensed. Liabilities are recorded 
when remedial efforts are probable and the costs can be reasonably estimated. 

Reclassification

Certain prior period balances within the financial statements have been reclassified to conform with current year presentation.

Recent Accounting Pronouncements

In June 2011, the Financial Accounting Standards Board (the “FASB”) issued new disclosure guidance related to the 
presentation of the statement of comprehensive income. This guidance provides an entity the option to present the total of 
comprehensive income, the components of net income and the components of other comprehensive income either in a 
single continuous statement of comprehensive income or in two separate but consecutive statements; the option to report 
other comprehensive income and its components in the statement of changes in stockholders’ equity was eliminated. This 
accounting standard is effective for periods beginning on or after December 15, 2011. WESCO has elected the option to 
present the components of net income and the components of comprehensive income in a single continuous statement of 
comprehensive income.

In July 2012, the Financial Accounting Standards Board (the “FASB”) issued updated guidance on the periodic testing of 
indefinite-lived intangible assets, other than goodwill, for impairment. This updated guidance will allow companies the 
option to first access qualitative factors to determine if it is more-likely-than-not that an indefinite-lived intangible asset 
might be impaired and whether it is necessary to perform the quantitative impairment test required under current 
accounting standards. This guidance is effective for annual and interim impairment tests performed for fiscal years 
beginning after September 15, 2012. WESCO will adopt this guidance in 2013. Adoption of this guidance is not expected 
to have a material impact on WESCO’s financial position, results of operations or cash flows.

Other pronouncements issued by the FASB or other authoritative accounting standards groups with future effective  
dates are either not applicable or are not expected to be significant to WESCO’s financial position, results of operations  
or cash flows.

2012 Annual Report52

3. GOODWILL AND INTANGIBLE ASSETS

Goodwill

The following table sets forth the changes in the carrying amount of goodwill:

 Year Ended December 31,  

(In thousands)

Beginning balance January 1 
  Translation adjustments 
  Additions to goodwill for acquisitions 
Ending balance December 31 

2012 

2011

  $  1,008,127  $ 

985,714
(3,597)
26,010
  $  1,777,797  $  1,008,127

(15,592) 
785,262 

WESCO has never recorded an impairment loss related to goodwill or intangible assets.

Intangible Assets

The components of intangible assets are as follows:

December 31, 2012 

December 31, 2011

Gross Carrying 

Life 

Amount(1) 

Accumulated 
Amortization(1) 

Net Carrying 
Amount 

Gross Carrying 

Amount(1) 

Accumulated 
Amortization(1) 

Net Carrying
Amount

(In thousands)

Intangible assets:
Trademarks  
Trademarks  
Non-compete  
  agreements 
Customer  
  relationships   
Distribution  
  agreements 
Patents 

Indefinite  $ 
4-15 

105,080  $ 
1,734 

—  $ 

(106) 

105,080  $ 
1,628 

46,852  $ 
— 

—  $ 
— 

46,852
—

5-7 

1,950 

(1,858) 

92 

1,252 

(1,038) 

214

4-20 

362,794 

(40,094) 

322,700 

70,670 

(32,527) 

38,143

10-19 
10 

38,119 
48,310 

  $ 

557,987  $ 

(9,298) 
(9,870) 
(61,226)  $ 

28,821 
38,440 

35,291 
48,310 

496,761  $ 

202,375  $ 

(6,897) 
(5,039) 
(45,501)  $ 

28,394
43,271
156,874

(1)  Excludes the original cost and accumulated amortization of fully-amortized intangibles.

Amortization expense related to intangible assets totaled $15.1 million, $13.4 million and $7.5 million for the years ended 
December 31, 2012, 2011 and 2010, respectively.

The following table sets forth the estimated amortization expense for intangibles for the next five years (in thousands):

For the year ended December 31, 

2013   
2014   
2015   
2016   
2017   

  $ 

Estimated
Amortization
Expense

39,239
38,014
36,075
34,889
33,895

4. CONCENTRATIONS OF CREDIT RISK AND SIGNIFICANT SUPPLIERS

WESCO distributes its products and services and extends credit to a large number of customers in the industrial, 
construction, utility, commercial, institutional, and governmental markets. WESCO’s largest supplier accounted for 
approximately 12% of WESCO’s purchases in 2012, 10% of purchases in 2011, and 12% of purchases in 2010, and 
therefore, WESCO could potentially incur risk due to supplier concentration. Based upon WESCO’s broad customer base, 
the Company has concluded that it has no material credit risk as a result of customer concentration.

WESCO International, Inc. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
5. ACQUISITIONS

The following table sets forth the consideration paid for acquisitions:

Year Ended December 31, 

(In thousands)

Details of acquisitions:
  Fair value of assets acquired 
  Fair value of liabilities assumed 
  Deferred acquisition payments 
Cash paid for acquisitions 
Supplemental cash flow disclosure related to acquisitions:
  Cash paid for acquisitions 

Less: cash acquired 

Cash paid for acquisitions, net of cash acquired 

Acquisition of EECOL Electric Corporation

53

2012 

2011

  $  1,609,785  $ 

(288,005) 
— 

  $  1,321,780  $ 

  $  1,321,780  $ 

(32,300) 

  $  1,289,480  $ 

54,663
(6,570)
—
48,093

48,093
—
48,093

On December 14, 2012, WESCO International completed its acquisition of EECOL Electric Corporation (“EECOL”). WESCO 
paid at closing a cash purchase price of approximately $1.1 billion, of which $50.8 million was placed in escrow to address 
post-closing purchase price adjustments and potential indemnification claims. The remaining escrow will be distributed to 
the sellers in June 2014. To fund the purchase price paid at closing, WESCO and its subsidiaries borrowed $851 million 
under new term loans and $264 million under the Revolving Credit Facility. With the acquisition of EECOL, WESCO 
obtained a 60% ownership in a joint venture. This entity has been consolidated. The noncontrolling interest incurred a gain 
of less than $0.1 million in 2012.

EECOL is a full-line distributor of electrical equipment, products and services with 57 locations across Canada and 20 in 
South America. EECOL has a warehouse-based business focused on serving industrial, oil, gas, mining, utility, and 
commercial and residential construction customers. 

The preliminary purchase price was allocated to the respective assets and liabilities based upon their estimated fair values 
as of the acquisition date. The fair value of the intangible assets was estimated by management and the allocation resulted 
in intangible assets of $300.4 million and goodwill of $670.4 million which is not deductible for tax purposes. The 
intangible assets include customer relationships of $245.1 million amortized over 20 years and trademarks of $55.3 
million. Trademarks have an indefinite life and are not being amortized. No residual value is estimated for these intangible 
assets. The goodwill arising from the acquisition is based largely on the depth and diversity of name brand products, 
warehouse locations, and a highly-trained and knowledgeable workforce.

Approximately $31.5 million of the $32.3 million of cash and equivalents that was transferred to the Company is  
expected to be remitted back to the sellers in May 2013, and accordingly, a corresponding liability has been recorded  
at December 31, 2012. 

2012 Annual Report 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
54

The following summary presents the fair value of the assets acquired and liabilities assumed for the EECOL acquisition.

(In thousands)

Assets Acquired
Cash and cash equivalents 
Trade accounts receivable 
Other accounts receivable 
Inventories   
Prepaid expenses and other current assets 
Property, buildings and equipment 
Intangible assets 
Goodwill   
Other noncurrent assets 
  Total assets acquired 

Liabilities Assumed
Accounts payable   
Accrued expenses and other current liabilities   
Short-term debt 
Deferred income taxes - long-term 
Long-term debt  
Other long-term liabilities 
  Total liabilities assumed 

EECOL

  $ 

32,300
136,178
23,187
118,244
25,133
73,129
300,439
670,362
15,510
  1,394,482

76,509
63,476
5,734
75,031
6,205
46,870
273,825

Fair value of net assets acquired, including intangible assets 

  $  1,120,657

The operating results of EECOL have been included in WESCO’s consolidated financial statements since December 14, 
2012. EECOL has contributed $24.1 million to net sales. Unaudited pro forma results of operations (in thousands, except 
per share data) for the twelve months ended December 31, 2012 and 2011 are included below as if the acquisition 
occurred on the first day of the respective periods. This summary of the unaudited pro forma results of operations is not 
necessarily indicative of what WESCO’s results of operations would have been had EECOL been acquired at the beginning 
of 2011, nor does it purport to represent results of operations for any future periods.

Year Ended December 31, 

(In thousands, except per share data)

Net Sales 
Net Income   
  Earnings per common share:
  Basic  
  Diluted 

Acquisition of RS Electronics

2012 

2011

  $  7,493,978  $  6,980,120
235,326

263,149 

  $ 
  $ 

6.02  $ 
5.15  $ 

5.44
4.74

On January 3, 2012, WESCO completed its acquisition of RS Electronics, a leading North American distributor of electronic 
products serving primarily the industrial, medical equipment, automotive, and contract manufacturing end markets with 
eight branches located in the Midwest and southeastern United States and approximately $60.0 million in annual sales. 
The purchase price was allocated to the respective assets and liabilities based upon their estimated fair values as of the 
acquisition date. The excess of the purchase price over the net assets acquired, including intangible assets, has been 
allocated to goodwill. The fair value of intangible assets was estimated by management and the allocation resulted in 
goodwill of $12.2 million. Management believes the majority of goodwill will be deductible for tax purposes.

Acquisition of Trydor Industries (Canada), Ltd.

On July 3, 2012, WESCO completed its acquisition of Trydor Industries (Canada), Ltd. (“Trydor”) through one of its 
wholly-owned Canadian subsidiaries. Trydor is a full-line distributor of high-voltage electrical products and services 
addressing the transmission, substation and distribution network needs for utilities, independent power producers and 

WESCO International, Inc. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
55

utility contractors in Canada with approximately $35.0 million in annual sales. The purchase price was allocated to the 
respective assets and liabilities based upon their estimated fair values as of the acquisition date. The excess of the 
purchase price over the net assets acquired, including intangible assets, has been allocated to goodwill. The fair value of 
intangible assets was estimated by management and the allocation resulted in goodwill and intangible assets of $19.1 
million and $11.8 million, respectively. Management believes the majority of goodwill will be deductible for tax purposes. 
The intangible assets include customer relationships of $8.9 million amortized over 10 years, supplier relationships of $2.7 
million amortized over 10 years and trademarks of $0.2 million amortized over 4 years. No residual value is estimated for 
the intangible assets. 

Acquisition of Conney Safety Products, LLC

On July 9, 2012, WESCO completed the acquisition of Conney Safety Products, LLC, a distributor of MRO safety products 
with approximately $85 million in annual sales. The purchase price was allocated to the respective assets and liabilities 
based upon their estimated fair values as of the acquisition date. The excess of the purchase price over the net assets 
acquired, including intangible assets, has been allocated to goodwill. The fair value of intangible assets was estimated by 
management and the allocation resulted in goodwill and intangible assets of $83.6 million and $45.3 million, respectively. 
Management believes the majority of goodwill will be deductible for tax purposes. The intangible assets include customer 
relationships of $40.3 million amortized over 12 years, a trademark of $1.5 million amortized over 15 years, and a 
trademark valued at $3.5 million with an indefinite life. No residual value is estimated for the intangible assets. 

2011 Acquisitions of RECO, LLC and Brews Supply, Ltd.

On March 14, 2011, WESCO Distribution, Inc. (“WESCO Distribution”) completed its acquisition of RECO, LLC (“RECO”), a 
Siemens automation, controls, and electrical distributor located in the midwest and southeastern regions of the United 
States with approximately $25 million in annual sales. The purchase price was allocated to the respective assets and 
liabilities based upon their estimated fair values as of the acquisition date. The excess of the purchase price over the fair 
value of the net assets acquired has been allocated to goodwill valued at $6.0 million. Management believes the majority of 
goodwill will be deductible for tax purposes.

On October 3, 2011, WESCO Distribution through its wholly-owned Canadian subsidiary, completed its acquisition of Brews 
Supply, Ltd. (“Brews”), a full line electrical distributor of industrial, utility, and commercial products located in western 
Canada with approximately $50 million in annual sales. The purchase price was allocated to the respective assets and 
liabilities based upon their estimated fair values as of the acquisition date. The excess of the purchase price over the fair 
value of the net assets acquired, including intangible assets, has been allocated to goodwill. The fair value of intangible 
assets was estimated by an independent appraiser and the allocation resulted in goodwill and intangible assets of $19.8 
million and $10.2 million, respectively. Management believes the majority of goodwill will be deductible for tax purposes. 
The intangible assets include customer relationships of $4.8 million amortized over 10 years, supplier relationships of $4.2 
million amortized over 10 years and trademarks of $1.2 million. Trademarks have an indefinite life and are not being 
amortized. No residual value is estimated for the intangible assets. With the acquisition of Brews, WESCO obtained a 49% 
ownership in a joint venture. This entity has been consolidated. The noncontrolling interest incurred a loss of less than $0.1 
million in 2011 and 2012. 

2010 Acquisitions of TVC Communications, L.L.C. and Potelcom Supply, Inc.

On December 16, 2010, WESCO Distribution completed its acquisition of TVC Communications, L.L.C. (“TVC 
Communications”), an international distributor in the Western Hemisphere of infrastructure products to the cable television 
and telecommunication industries. TVC Communications offers products necessary to build out a broadband network, 
ranging from the industry’s widest selection of premier branded components, to a variety of proprietary and private label 
products. TVC Communications also offers a full suite of value-added services, including design, engineering, installation, 
repair and maintenance.

WESCO paid at closing a cash purchase price of approximately $251.0 million, net of $1.5 million of cash acquired, of 
which $20.0 million was held in escrow to address post-closing working capital adjustments. The purchase price was 
allocated to the respective assets and liabilities based upon their estimated fair values as of the acquisition date. The 
excess of the purchase price over the fair value of the net assets acquired, including intangible assets, has been allocated 
to goodwill. The fair value of intangible assets was estimated by management and the allocation resulted in intangible 

2012 Annual Report56

assets of $86.4 million and goodwill of $109.2 million. Management believes the majority of goodwill will be deductible for 
tax purposes. The intangible assets include technology patents of $48.3 million amortized over 10 years, customer 
relationships of $20.6 million amortized over 10 years, supplier relationships of $9.7 million amortized over 15 years and 
trademarks of $7.8 million. Trademarks have an indefinite life and are not being amortized. No residual value is estimated 
for the intangible assets.

The allocation of assets acquired and liabilities assumed for the TVC Communications acquisition is summarized below:

(In thousands)

Assets Acquired
Cash and cash equivalents 
Trade accounts receivable 
Other accounts receivable 
Inventories   
Prepaid expenses and other current assets 
Property, buildings and equipment 
Intangible assets 
Goodwill   
Other noncurrent assets 
  Total assets acquired 

Liabilities Assumed
Accounts payable   
Accrued payroll and benefit costs 
Other current liabilities 
  Total liabilities assumed 

TVC Communications, LLC

  $ 

1,475
38,744
978
41,313
1,377
2,268
86,442
109,183
158
281,938

24,249
1,183
4,019
29,451

Fair value of net assets acquired, including intangible assets 

  $ 

252,487

In 2010, TVC Communications contributed $6.9 million to net sales and had no impact on net income. Unaudited pro 
forma results of operations (in thousands, except per share data) for the twelve months ended December 31, 2010 are 
included below as if the acquisition occurred on the first day. 

Year Ended December 31, 

(In thousands, except per share data)

Net Sales 
Net Income   
  Earnings per common share:
  Basic  
  Diluted 

2010

  $  5,315,929
132,455

  $ 
  $ 

3.12
2.87

On June 30, 2010, WESCO Distribution completed its acquisition of Potelcom Supply, Inc., a single branch operation with 
annual sales of approximately $25 million serving the utility, industrial, and governmental markets in Alaska. WESCO 
funded the purchase price paid at closing with cash and borrowings under the Receivables Facility. The purchase price 
was allocated to the respective assets and liabilities based upon their estimated fair value as of the acquisition date. The 
excess of the purchase price over the fair value of the net assets acquired has been allocated to goodwill valued at $10.7 
million.

WESCO International, Inc. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
6. PROPERTY, BUILDINGS AND EQUIPMENT

The following table sets forth the components of property, buildings and equipment:

December 31,    

(In thousands)

Buildings and leasehold improvements 
Furniture, fixtures and equipment 
Software costs   

Accumulated depreciation and amortization 

Land   
Construction in progress 

57

2012 

2011

  $ 

144,627  $ 
161,135 
54,652 
360,414 
(199,115) 
161,299 
38,431 
10,993 

  $ 

210,723  $ 

96,527
152,164
44,909
293,600
(190,385)
103,215
21,097
9,238
133,550

Depreciation expense was $14.4 million, $12.5 million and $11.7 million, and capitalized software amortization was $8.1 
million, $5.7 million and $4.7 million, in 2012, 2011 and 2010, respectively. The unamortized software cost was $21.1 
million and $19.7 million as of December 31, 2012 and 2011, respectively. Furniture, fixtures and equipment include 
capitalized leases of $11.2 million and $9.6 million and related accumulated amortization of $5.6 million and $4.7 million 
as of December 31, 2012 and 2011, respectively.

7. DEBT

The following table sets forth WESCO’s outstanding indebtedness:

As of December 31, 

(In thousands)

Term Loan Facility, less debt discount of $9,936 
Mortgage financing facility 
Accounts receivable securitization facility 
Revolving credit facility 
7.50% Senior Subordinated Notes due 2017 
Foreign lines of credit 
1.75% Convertible Senior Debentures due 2026,  
  less debt discount of $0 in 2012 and 2011 
6.0% Convertible Senior Debentures due 2029,  
  less debt discount of $173,708 and $175,908 in 2012 and 2011, respectively 
Capital leases 
Other notes   
  Total debt 
Less current and short-term portion 
Total long-term debt 

2012 

2011

  $ 

840,827  $ 

26,414 
445,000 
218,295 
— 
30,136 

—
37,564
250,000
36,792
150,000
3,261

— 

56

171,213 
3,220 
67 
  1,735,172 
(39,759) 

  $  1,695,413  $ 

169,054
2,521
85
649,333
(6,411)
642,922

Term Loan Facility 

On December 12, 2012, WESCO Distribution, as U.S. borrower, WDCC (WDCC and together with WESCO Distribution, the 
“Borrowers”), as Canadian borrower, and WESCO International entered into a Term Loan Agreement (the “Term Loan 
Agreement”) among WESCO Distribution, WDCC, the Company, the lenders party thereto and Credit Suisse AG Cayman 
Islands Branch, as administrative agent and as collateral agent. 

The Term Loan Agreement provides for a seven-year term loan facility (the “Term Loan Facility”), which consists of two 
separate sub-facilities: (i) a Canadian sub-facility in an aggregate principal amount of CAD $150.0 million, issued at a  
2.0% discount, and (ii) a U.S. sub-facility in an aggregate principal amount of US $700.0 million, issued at a 1.0% 

2012 Annual Report 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
58

discount. WESCO is amortizing the debt discount and financing costs over the life of the instrument. Non-cash interest 
expense of $0.1 million was recorded for the year ended December 31, 2012. The debt discount amortization will be  
$1.4 million annually.

Subject to the terms of the Term Loan Facility, the Borrowers may request incremental term loans thereunder from time to 
time in an aggregate principal amount not to exceed at any time US $300.0 million, with an equivalent principal amount in 
U.S. Dollars being calculated for any incremental term loan denominated in Canadian Dollars, in order to finance certain 
permitted acquisitions. The proceeds of the Term Loan Facility were used to finance the acquisition of EECOL, to pay fees 
and expenses incurred in connection with the acquisition and certain other transactions. At December 31, 2012, WESCO 
had a balance outstanding under the facility of US $850.8 million.

Borrowings under the Term Loan Facility bear interest at base rates plus applicable margins. At December 31, 2012, the 
interest rates on borrowings under the Canadian sub-facility and U.S. sub-facility were approximately 5.2% and 4.5%, 
respectively. The Borrowers will pay quarterly installments of principal equal to 0.25% of the original principal amount of 
their respective term loans, plus accrued and unpaid interest, beginning on March 31, 2013. To the extent not previously 
paid, the term loans will become due and payable on December 12, 2019, with any unpaid incremental term loans 
becoming due and payable on the respective maturity dates applicable to those incremental term loans. Other than in 
certain circumstances prior to the first anniversary of the closing of the Term Loan Facility, at any time or from time to time, 
the Borrowers may prepay borrowings under the Term Loan Facility in whole or in part without premium or penalty. The 
Borrowers’ obligations under the Term Loan Facility are secured by substantially all of the assets of the Borrowers, the 
Company and certain of the Company’s other subsidiaries; provided that, with respect to borrowings under the U.S. 
sub-facility, the collateral does not include assets of certain foreign subsidiaries or more than sixty-five percent of the 
issued and outstanding equity interests in certain foreign subsidiaries. 

The Term Loan Facility contains customary affirmative and negative covenants for credit facilities of this type, including 
limitations on the Term Loan Parties with respect to indebtedness, liens, investments, mergers and acquisitions, 
dispositions of assets and transactions with affiliates. The Term Loan Facility also provides for customary events of default.

Mortgage Financing Facility

In 2003, WESCO finalized a mortgage financing facility of $51 million, of which $26.4 million was outstanding as of 
December 31, 2012. Total borrowings under the mortgage financing facility are subject to a 22-year amortization schedule, 
with a balloon payment due during the first quarter of 2013. The interest rate on borrowings under this facility is fixed at 
6.5%. The Company’s intent is to pay the 2013 obligations of 26.4 million utilizing the Revolving Credit Facility and 
therefore this facility is classified as long-term. 

Accounts Receivable Securitization Facility

On December 11, 2012, WESCO Distribution entered into an amendment of the Receivables Facility pursuant to the terms 
and conditions of a Seventh Amendment to Third Amended and Restated Receivables Purchase Agreement, dated as of 
December 11, 2012 (the “Amendment”), by and among WESCO Receivables Corp. (“WESCO Receivables”), WESCO 
Distribution, the Purchasers and Purchaser Agents party thereto and PNC Bank, National Association, as Administrator. 
The Amendment, among other things, added certain defined terms and amended certain other terms such as change in 
control, excluded receivables, and an intercreditor agreement. Substantially all other terms and conditions of the 
Receivables Facility remain unchanged. In addition, on December 11, 2012, WESCO Distribution and WESCO Receivables 
exercised an existing accordion feature under the Receivables Facility to increase the purchasing limit thereunder from 
$450.0 million to $475.0 million. The Receivables Facility matures in August 2014. 

Under the Receivables Facility, WESCO sells, on a continuous basis, an undivided interest in all domestic accounts 
receivable to WESCO Receivables Corp., a wholly owned special purpose entity (the “SPE”). The SPE sells, without 
recourse, a senior undivided interest in the receivables to third-party conduits and financial institutions for cash while 
maintaining a subordinated undivided interest in the receivables, in the form of overcollateralization. WESCO has agreed to 
continue servicing the sold receivables for the third-party conduits and financial institutions at market rates; accordingly, no 
servicing asset or liability has been recorded.

WESCO International, Inc.59

As of December 31, 2012 and 2011, accounts receivable eligible for securitization totaled approximately $601.1 million 
and $613.9 million, respectively. The consolidated balance sheets as of December 31, 2012 and 2011 include $445.0 
million and $250.0 million, respectively, of account receivable balances legally sold to third parties, as well as borrowings 
for equal amounts. At December 31, 2012, the interest rate on borrowings under this facility was approximately 1.4%.

Revolving Credit Facility

On December 12, 2012, WESCO Distribution and certain other subsidiaries of the Company entered into a US $600.0 
million revolving credit facility, which includes a letter of credit sub-facility of up to US $90.0 million in the aggregate, 
pursuant to the terms and conditions of an Amended and Restated Credit Agreement, dated as of December 12, 2012, 
among WESCO Distribution, the other U.S. Borrowers party thereto, WESCO Distribution Canada LP (“WESCO Canada”) 
and WDCC Enterprises, Inc. (“WDCC”), as Canadian Borrowers, the other Loan Parties party thereto, the Lenders party 
thereto, JPMorgan Chase Bank, N.A., as Administrative Agent, and JPMorgan Chase Bank, N.A., Toronto Branch, as 
Canadian Administrative Agent. Upon completion of the acquisition of EECOL on December 14, 2012, EECOL was added 
as a Canadian Borrower. The Revolving Credit Facility contains an accordion feature allowing WESCO Distribution to 
request increases to the borrowing commitments under the Credit Facility of up to US $100.0 million in the aggregate. The 
Revolving Credit Facility replaced WESCO Distribution’s US $400.0 million revolving credit facility originally entered into on 
August 22, 2011.

The Revolving Credit Facility matures in August 2016 and consists of two separate sub-facilities: (i) a Canadian sub-facility 
with a borrowing limit of up to US $400.0 million, which is collateralized by substantially all assets of WESCO Canada, 
WDCC and EECOL, and (ii) a U.S. sub-facility with a borrowing limit of up to US $600.0 million less the amount of 
outstanding borrowings under the Canadian sub-facility. The U.S. sub-facility is collateralized by substantially all assets of 
WESCO Distribution and its U.S. subsidiaries other than real property and accounts receivable sold or intended to be sold 
pursuant to the Receivables Facility. Availability under the Revolving Credit Facility is based upon the amount of eligible 
inventory and receivables applied against certain advance rates. The applicable interest rate for borrowings under the 
Revolving Credit Facility includes interest rate spreads based on available borrowing capacity that range between 1.5% and 
2.0% for LIBOR-based borrowings and 0.5% and 1.0% for prime rate-based borrowings. The otherwise applicable interest 
rate is reduced by 0.25% if the Company’s leverage ratio falls below a ratio of 2.5 to 1.0. At December 31, 2012, the 
interest rate on borrowings under this facility was approximately 2.5%.

The Credit Agreement contains customary affirmative and negative covenants for credit facilities of this type, including 
limitations on WESCO Distribution, the Company and certain of the Company’s other subsidiaries with respect to 
indebtedness, liens, investments, mergers and acquisitions, dispositions of assets and transactions with affiliates. Subject 
to the terms of the Credit Agreement, the Company is permitted to pay dividends, repurchase common stock or repurchase 
indebtedness without limitation so long as pro forma combined availability under the Revolving Credit Facility and the 
Receivables Facility exceeds US $160.0 million and the adjusted fixed charge ratio is not less than a ratio of 1.1 to 1.0. 

During 2012, WESCO borrowed $814.1 million in the aggregate under the Revolving Credit Facility and made repayments 
in the aggregate amount of $632.9 million. During 2011, aggregate borrowings and repayments were $435.7 million and 
$398.9 million, respectively. At December 31, 2012, WESCO had a balance outstanding of $218.3 million under the 
Revolving Credit facility. WESCO had $270.9 million available under the Revolving Credit facility at December 31, 2012, 
after giving effect to outstanding letters and foreign lines of credit, as compared to approximately $299.3 million at 
December 31, 2011.

7.50% Senior Subordinated Notes due 2017

On December 10, 2012, WESCO International announced that WESCO Distribution would redeem all of its outstanding 
7.50% Senior Subordinated Notes due 2017 (the “2017 Notes”) on January 9, 2013 (the “Redemption Date”) at a 
redemption price equal to 101.25% of the principal amount thereof plus accrued and unpaid interest to, but excluding, the 
Redemption Date, for a total of 103% of the principal amount of 2017 Notes. The aggregate principal amount of 2017 
Notes outstanding was $150.0 million. On December 11, 2012, in accordance with the terms of the Indenture, dated as of 
September 27, 2005, among WESCO Distribution, WESCO International and The Bank of New York Mellon, as trustee (the 
“Trustee”), WESCO Distribution irrevocably deposited with the Trustee funds sufficient to pay principal and interest of all 
outstanding 2017 Notes on the Redemption Date. As a result, the Indenture was satisfied and discharged.

2012 Annual Report60

Foreign Lines of Credit

Certain foreign subsidiaries of WESCO have entered into uncommitted lines of credit, which serve as overdraft facilities, to 
support local operations. The maximum borrowing limit varies by facility and ranges between US $0.5 million and US $8.0 
million. The applicable interest rate for borrowings under these lines of credit varies by country and is governed by the 
applicable loan agreement. The foreign lines of credit are renewable on an annual basis and are fully and unconditionally 
guaranteed by WESCO Distribution. Accordingly, these lines directly reduce availability under the Revolving Credit Facility.

1.75% Convertible Senior Debentures due 2026

Proceeds of $300 million were received in connection with the issuance of the 2026 Debentures by WESCO International 
in November 2006. On August 27, 2009, WESCO International completed an exchange offer pursuant to which it issued 
$345.0 million in aggregate principal amount of 2029 Debentures in exchange for approximately $299.7 million and $57.7 
million in aggregate principal amounts of its outstanding 1.75% Convertible Senior Debentures due 2026 (the “2026 
Debentures”) and 2.625% Convertible Senior Debentures due 2025 (the “2025 Debentures”), respectively (see the 6.0% 
Convertible Senior Debentures due 2029 discussion below for additional information). On November 30, 2011, WESCO 
International announced that it would redeem all of its 2026 Debentures on January 3, 2012. WESCO International 
redeemed the remaining $0.1 million aggregate principal amount of outstanding 2026 Debentures at a redemption price 
equal to 100% of the principal amount plus accrued and unpaid interest. Following the redemption on January 3, 2012, 
there were no 2026 Debentures outstanding.

On January 1, 2009, WESCO retrospectively applied the provisions of guidance concerning convertible debt instruments to 
the 2026 Debentures. WESCO utilized an interest rate of 6% to reflect the non-convertible market rate of its offering upon 
issuance. WESCO amortized the debt discount over a five year period starting on the date of issuance. Non-cash interest 
expense of less than $0.1 million was recorded for the years ended December 31, 2012 and 2011. 

6.0% Convertible Senior Debentures due 2029

On August 27, 2009, WESCO International completed an exchange offer pursuant to which it issued $345.0 million in 
aggregate principal amount of 2029 Debentures in exchange for approximately $299.7 million and $57.7 million in 
aggregate principal amounts of its outstanding 2026 Debentures and 2025 Debentures, respectively. As a result of the debt 
exchange, WESCO recorded a gain of $6.0 million, which included the write-off of debt issuance costs. The 2029 
Debentures were issued pursuant to an Indenture dated August 27, 2009 (the “Indenture”), with The Bank of New York 
Mellon, as trustee, and are unconditionally guaranteed on an unsecured senior subordinate basis by WESCO Distribution.

WESCO utilized an interest rate of 13.875% to reflect the non-convertible debt borrowing rate of its offering upon issuance, 
which was determined based on discussions with its financial institutions and a review of relevant market data, and 
resulted in a $181.2 million discount to the 2029 Debenture balance and a net increase in additional capital of $106.5 
million. In addition, the financing costs related to the issuance of the 2029 Debentures were allocated between the debt 
and equity components. WESCO is amortizing the debt discount and financing costs over the life of the instrument. 
Non-cash interest expense of $2.2 million and $2.5 million was recorded for the years ended December 31, 2012 and 
2011, respectively. The debt discount amortization will approximate $2.9 million in 2013, $3.3 million in 2014, $3.8 million 
in 2015, $4.3 million in 2016, and $4.9 million in 2017.

While the 2029 Debentures accrue interest at an effective interest rate of 13.875% (as described above), the coupon 
interest rate of 6.0% per annum is payable in cash semi-annually in arrears on each March 15 and September 15, and 
commenced March 15, 2010. Beginning with the six-month period commencing September 15, 2016, WESCO will also 
pay contingent interest in cash during any six-month period in which the trading price of the 2029 Debentures for each of 
the five trading days ending on the second trading day immediately preceding the first day of the applicable six-month 
interest period equals or exceeds 120% of the principal amount of the 2029 Debentures. During any interest period when 
contingent interest shall be payable, the contingent interest payable per $1,000 principal amount of 2029 Debentures will 
equal 0.25% of the average trading price of $1,000 principal amount of the 2029 Debentures during the five trading days 
immediately preceding the first day of the applicable six-month interest period. In accordance with guidance related to 
derivatives and hedging, the contingent interest feature of the 2029 Debentures is an embedded derivative that is not 
considered clearly and closely related to the host contract. The contingent interest component had no significant value at 
December 31, 2012 or 2011.

WESCO International, Inc.61

The 2029 Debentures are convertible into cash, and in certain circumstances, shares of WESCO International’s common 
stock, $0.01 par value, at any time on or after September 15, 2028, or prior to September 15, 2028 in certain 
circumstances. The 2029 Debentures will be convertible based on an initial conversion rate of 34.6433 shares of common 
stock per $1,000 principal amount of the 2029 Debentures (equivalent to an initial conversion price of approximately 
$28.87 per share). The conversion rate and conversion price may be adjusted under certain circumstances.

At any time on or after September 15, 2016, the Company may redeem all or a part of the 2029 Debentures plus accrued 
and unpaid interest (including contingent interest and additional interest, if any) to, but not including, the redemption date. 
If WESCO International undergoes certain fundamental changes, as defined in the Indenture, prior to maturity, holders of 
the 2029 Debentures will have the right, at their option, to require WESCO International to repurchase for cash some or all 
of their 2029 Debentures at a repurchase price equal to 100% of the principal amount of the 2029 Debentures being 
repurchased, plus accrued and unpaid interest (including contingent interest and additional interest, if any) to, but not 
including, the repurchase date.

The following table sets forth the components of WESCO’s outstanding convertible debenture indebtedness:

December 31, 2012 

December 31, 2011

Principal 
Balance 

Discount 

Net Carrying 
Amount 

Principal 
Balance 

Discount 

Net Carrying  

Amount

(In thousands)

Convertible Debentures:
2026   
2029   

Covenant Compliance

$ 

$ 

—  $ 

—  $ 

—  $ 

56  $ 

—  $ 

344,921 
344,921  $ 

(173,708) 
(173,708)  $ 

171,213 
171,213  $ 

344,962 
345,018  $ 

(175,908) 
(175,908)  $ 

56
169,054
169,110

WESCO was in compliance with all relevant covenants contained in its debt agreements as of December 31, 2012.

The following table sets forth the aggregate principal repayment requirements for all indebtedness for the next five years 
and thereafter, as of December 31, 2012:

(In thousands)

2013   
2014   
2015   
2016   
2017   
Thereafter 
  Total payments on debt 
  Debt discount on convertible debentures and term loan facility 

  Total long-term debt 

  $ 

66,173
454,436
9,192
227,162
8,691
  1,153,162
  1,918,816
(183,644)
  $  1,735,172

WESCO’s credit agreements contain various restrictive covenants that, among other things, impose limitations on (i) 
dividend payments or certain other restricted payments or investments; (ii) the incurrence of additional indebtedness and 
guarantees; (iii) creation of liens; (iv) mergers, consolidation or sales of substantially all of WESCO’s assets; (v) certain 
transactions among affiliates; (vi) payments by certain subsidiaries to WESCO; and (vii) capital expenditures. In addition, 
the revolving credit agreement and Receivables Facility require WESCO to meet certain fixed charge coverage tests 
depending on availability or liquidity, respectively.

2012 Annual Report 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
62

8. CAPITAL STOCK

Preferred Stock

There are 20 million shares of preferred stock authorized at a par value of $.01 per share. The Board of Directors has the 
authority, without further action by the stockholders, to issue all authorized preferred shares in one or more series and to fix 
the number of shares, designations, voting powers, preferences, optional and other special rights and the restrictions or 
qualifications thereof. The rights, preferences, privileges and powers of each series of preferred stock may differ with 
respect to dividend rates, liquidation values, voting rights, conversion rights, redemption provisions and other matters.

Common Stock

There are 210 million shares of common stock and 20 million shares of Class B common stock authorized at a par value of 
$.01 per share. The Class B common stock is identical to the common stock, except for voting and conversion rights. The 
holders of Class B common stock have no voting rights. With certain exceptions, Class B common stock may be converted, 
at the option of the holder, into the same number of shares of common stock.

Under the terms of the Revolving Credit Facility and the Term Loan Agreement, WESCO International is restricted from 
declaring or paying dividends and as such, at December 31, 2012 and 2011, no dividends had been declared, and 
therefore no retained earnings were reserved for dividend payments.

Additional Capital

WESCO separately accounts for the liability and equity components of its 2029 Debentures and 2026 Debentures in a 
manner that reflects its non-convertible debt borrowing rate. As of December 31, 2012 and 2011, the net equity included 
in additional capital related to the 2029 Debentures and 2026 Debentures totaled $106.3 million and $106.4 million, 
respectively.

9. EQUITY INVESTMENT

During the first quarter of 2008, WESCO and Deutsch Engineered Connecting Devices, Inc. (“Deutsch”) completed a 
transaction with respect to WESCO’s LADD operations, which resulted in a joint venture in which Deutsch owned a 60% 
interest and WESCO owned a 40% interest. WESCO accounted for its investment in the joint venture using the equity 
method of accounting. Accordingly, earnings from the joint venture were recorded as other income in the consolidated 
statement of income. Deutsch was entitled, but not obliged, to acquire the remaining 40% after January 1, 2010. Deutsch 
paid to WESCO aggregate consideration of approximately $75.0 million, consisting of $60.0 million in cash plus a $15.0 
million promissory note for its 60% interest in the joint venture.

On January 15, 2010, WESCO received $1.8 million in accrued interest related to the promissory note for the period from 
January 2, 2008 to January 2, 2010. In addition, Deutsch and WESCO entered into an amended promissory note 
agreement. The amendment extended the maturity date for the payment of principal and interest to the earlier of (a) the 
closing date of Deutsch’s option to acquire the remaining 40% joint venture interest or (b) the maturity date of Deutsch’s 
credit facility or mezzanine financing facility. Interest accrued at a rate of 8.5% compounded annually. Management 
believed this rate was commensurate with a market rate of interest; therefore, no reserve or allowance was recorded 
against the promissory note.

On April 30, 2010, Deutsch notified WESCO it would exercise its option to purchase the remaining 40% of the LADD joint 
venture. The option price for Deutsch to acquire the remaining 40% of the joint venture was determined based upon a 
multiple of trailing earnings, with a minimum purchase price of $40.0 million and maximum purchase price of $50.0 
million. The investment in the LADD joint venture at March 31, 2010 was $43.4 million, and the estimated option exercise 
price was $40.0 million. As a result, WESCO recorded a pre-tax impairment loss of $3.4 million to selling, general and 
administrative expenses during the first quarter of 2010. On June 7, 2010, WESCO completed the sale of its 40% interest 
in the LADD joint venture and recorded an additional impairment charge of $0.4 million to selling, general and 
administrative expenses. WESCO received $40.0 million for its 40% interest plus $15.0 million for the outstanding 
promissory note and $0.5 million for accrued interest.

WESCO International, Inc.10. INCOME TAXES

The following table sets forth the components of the provision for income taxes:

 Year Ended December 31, 

2012 

2011 

2010

63

(In thousands) 

Current taxes:
  Federal(1)  
  State   
  Foreign   

  Total current  

Deferred taxes:
  Federal   
  State   
  Foreign   

  Total deferred 

  $ 

51,132  $ 

60,415  $ 

6,006 
5,079 
62,217 

5,705 
2,643 
68,763 

15,034 
1,080 
1,549 
17,663 
79,880  $ 

9,692 
2,187 
2,494 
14,373 
83,136  $ 

  $ 

11,363
2,018
7,801
21,182

21,069
1,112
(1,199)
20,982
42,164

(1)   Tax benefits related to stock options and other equity instruments recorded directly to additional paid in capital totaled $11.3 million, $5.6 million and 

$8.2 million in 2012, 2011 and 2010, respectively.

The following table sets forth the components of income before income taxes by jurisdiction:

Year Ended December 31,  

(In thousands)

United States 
Foreign   

2012 

2011 

2010

  $ 

255,700  $ 

260,859  $ 

25,938 

18,517 

  $ 

281,639  $ 

279,376  $ 

166,108
(8,467)
157,641

The following table sets forth the reconciliation between the federal statutory income tax rate and the effective rate:

Year Ended December 31, 

Federal statutory rate 
State taxes, net of federal tax benefit 
Nondeductible expenses 
Domestic tax benefit from foreign operations 
Foreign tax rate differences 
Tax effect of intercompany financing 
Federal tax credits 
Domestic production activity deduction 
Adjustment related to uncertain tax positions 
Revaluation of deferred tax items 
Other 

2012 

35.0% 
1.8 
1.0 
(0.2) 
(0.9) 
(6.3) 
— 
(0.5) 
(0.6) 
(0.1) 
(0.8) 
28.4% 

2011 

35.0% 
2.1 
0.7 
— 
(0.8) 
(6.1) 
(0.1) 
(0.5) 
(0.7) 
0.4 
(0.2) 
29.8% 

2010

35.0%
1.5
1.3
(0.3)
0.2
(10.6)
(0.1)
(0.5)
(4.2)
1.9
2.5
26.7%

As of December 31, 2012, WESCO had approximately $323.5 million of undistributed earnings related to its foreign 
subsidiaries. Management believes that these earnings will be indefinitely reinvested in foreign jurisdiction; accordingly, 
WESCO has not provided for U.S. federal income taxes related to these earnings.

2012 Annual Report  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
64

The following table sets forth deferred tax assets and liabilities:

December 31,   

(In thousands)

Accounts receivable 
Inventory  
Depreciation 
Amortization of intangible assets 
Convertible debt interest 
Employee benefits  
Tax loss carryforwards 
Other  
  Total deferred taxes 

2012 

2011

Assets 

Liabilities  

Assets 

Liabilities

  $ 

2,518  $ 
— 
— 
— 
— 
40,485 
23,289 
50,723 

  $ 

117,015  $ 

—  $ 

4,412 
13,423 
242,745 
105,871 
— 
— 
8,558 
375,009  $ 

4,015  $ 
— 
— 
— 
— 
30,454 
24,232 
37,529 
96,230  $ 

—
6,515
6,064
162,675
93,736
—
—
3,938
272,928

As of December 31, 2012 and 2011, WESCO had state tax benefits derived from net operating loss carryforwards of 
approximately $6.7 million ($4.4 million, net of federal income tax) and $6.3 million ($4.0 million, net of federal income 
tax), respectively. In addition, WESCO had tax benefits from net operating losses resulting from the recapitalization of its 
Canadian operations of $18.9 million and $20.2 million, respectively. The amounts will begin expiring in 2013 and 2027, 
respectively. Utilization of WESCO’s state net operating loss carryforwards is subject to annual limitations imposed by state 
statute. Such annual limitations could result in the expiration of the net operating loss and tax credit carryforwards before 
utilization. Management anticipates utilizing the net operating losses prior to the expiration of statutes of limitations; 
accordingly, WESCO has not recorded a valuation allowance.

WESCO analyzes its filing positions for all open tax years in all jurisdictions. The Company is currently under examination in 
several tax jurisdictions, both within the United States and outside the United States, and remains subject to examination 
until the statute of limitations expires for the respective tax jurisdictions. The following summary sets forth the tax years that 
remain open in the Company’s major tax jurisdictions:

United States — Federal 
United States — States 
Canada 
* Open by waiver of statute only.

2000 and forward*
2007 and forward
2003 and forward

The following table sets forth the reconciliation of gross unrecognized tax benefits:

December 31,   

(In thousands)

Beginning balance January 1 
Additions based on tax positions related to the current year   
Additions for tax positions of prior years(1) 
Additions for acquired tax positions 
Reductions for tax positions of prior years 
Settlements   
Lapse in statute of limitations 
Ending balance December 31 

2012 

2011 

2010

  $ 

  $ 

20,878  $ 
929 
1,224 
1,825 
(85) 
(3,400) 
(296) 
21,075  $ 

3,394  $ 
265 
20,064 
— 
(2,161) 
(512) 
(172) 
20,878  $ 

8,085
1,439
4,668
—
(8,818)
(1,368)
(612)
3,394

(1)   In 2011, additions for tax positions of prior years primarily relate to transfer pricing issues between the United States and Canada, which are under review 
by the Canadian Competent Authority. A corresponding deferred tax asset in the amount of $23.1 million excluding interest has been recorded for the 
position in the United States.

The total amount of unrecognized tax benefits were $21.1 million, $20.9 million and $3.4 million as of December 31, 
2012, 2011 and 2010, respectively. If these tax benefits were recognized in the consolidated financial statements, the 
portion of these amounts that would reduce the Company’s tax provision would be $21.2 million, $19.7 million, and $1.9 
million respectively. The amount in 2012 would be offset by the corresponding deferred tax asset discussed above.

WESCO International, Inc. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
65

During the next twelve months, it is reasonably possible that the amount of unrecognized tax benefits will decrease by as 
much as $14.7 million ($12.2 million of which will be offset by the reversal of a deferred tax asset) due to certain issues 
being settled by the resolution of federal, state and/or foreign tax examinations and/or the expiration of statutes of 
limitations. Management does not expect this decrease to have an impact on the effective tax rate.

WESCO records interest related to uncertain tax positions as a part of interest expense in the consolidated statement of 
income. Any penalties are recognized as part of income tax expense. Penalties recorded to income tax expense were 
immaterial for 2012, 2011 and 2010. As of December 31, 2012 and 2011, WESCO had an accrued liability of $8.0 million 
and $11.4 million, respectively, for interest related to uncertain tax positions. During 2012 accrued interest decreased by 
$3.4 million primarily as a result of a favorable Internal Revenue Service appeals settlement in the first quarter related to 
the years 2000 to 2006.

11. EARNINGS PER SHARE

Basic earnings per share are computed by dividing net income by the weighted average common shares outstanding 
during the periods. Diluted earnings per share are computed by dividing net income by the weighted average common 
shares and common share equivalents outstanding during the periods. The dilutive effect of common share equivalents is 
considered in the diluted earnings per share computation using the treasury stock method, which includes consideration of 
stock-based compensation.

The following table sets forth the details of basic and diluted earnings per share:

Year Ended December 31, 

(In thousands, except per share data)

Net income   
Weighted average common shares outstanding used  
  in computing basic earnings per share 
Common shares issuable upon exercise of dilutive stock options 
Common shares issuable from contingently convertible  
  debentures (see below for basis of calculation) 
Weighted average common shares outstanding and common share  
  equivalents used in computing diluted earnings per share   
Earnings per share attributable to WESCO International, Inc. 
  Basic  
  Diluted 

2012 

2011 

2010

  $ 

201,777  $ 

196,251  $ 

115,477

43,677 
1,147 

43,220 
1,179 

42,499
840

6,310 

5,224 

2,774

51,133 

49,623 

46,113

  $ 
  $ 

4.62  $ 
3.95  $ 

4.54  $ 
3.96  $ 

2.72
2.50

As of December 31, 2012, 2011 and 2010, the computation of diluted earnings per share attributable to WESCO 
International, Inc. excluded stock-settled stock appreciation rights of approximately 0.9 million, 1.2 million and 2.4 million 
at weighted average exercise prices of $64.17 per share, $62.48 per share and $46.73 per share, respectively. These 
amounts were excluded because their effect would have been antidilutive.

Because of WESCO’s obligation to settle the par value of the 2029 Debentures in cash, WESCO is not required to include 
any shares underlying the 2029 Debentures in its diluted weighted average shares outstanding until the average stock 
price per share for the period exceeds the conversion price of the 2029 Debentures. At such time, only the number of 
shares that would be issuable (under the treasury stock method of accounting for share dilution) will be included, which is 
based upon the amount by which the average stock price exceeds the conversion price. The conversion price of the 2029 
Debentures is $28.87. Share dilution is limited to a maximum of 11,949,205 shares for the 2029 Debentures. For the 
periods ended December 31, 2012, 2011, and 2010, the effect of the 2029 Debentures on diluted earnings per share 
attributable to WESCO International, Inc. was a decrease of $0.56 , $0.47, and $0.16, respectively.

2012 Annual Report 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
66

12. EMPLOYEE BENEFIT PLANS

Defined Contribution Plans

A majority of WESCO’s employees are covered by defined contribution retirement savings plans for their service rendered 
subsequent to WESCO’s formation. WESCO also offers a deferred compensation plan for select individuals. For U.S. 
participants, WESCO will make contributions in an amount equal to 50% of the participant’s total monthly contributions up 
to a maximum of 6% of eligible compensation. For Canadian participants, WESCO will make contributions in an amount 
ranging from 1% to 7% of the participant’s eligible compensation based on years of continuous service. In addition, 
employer contributions may be made at the discretion of the Board of Directors. Discretionary employer contributions 
charges of $18.6 million, $16.2 million, and $14.2 million were incurred in 2012, 2011, and 2010, respectively. For the 
years ended December 31, 2012, 2011 and 2010, WESCO incurred charges of $31.8 million, $27.6 million, and $25.3 
million, respectively, for all such plans. Contributions are made in cash to employee retirement savings plan accounts. 
Employees then have the option to transfer balances allocated to their accounts into any of the available investment 
options, including WESCO common stock.

Defined Benefit Plans

In connection with the December 14, 2012 acquisition of EECOL discussed in Note 5, the Company assumed a 
contributory defined benefit plan covering all employees of EECOL. The plan provides retirement benefits based on 
earnings and credited service, and participants may contribute 2% of their earnings to the plan. Participants become 
100% vested after two years of continuous service. 

The Company also assumed EECOL’s Supplemental Executive Retirement Plan (SERP) which provides additional pension 
benefits to certain executives based on earnings, credited service, and executive service. Participants in the plan are 
vested after two years of continuous service and may contribute 4% of their earnings to the plan.

The following tables present the changes in benefit obligations, plan assets and funded status for the pension plans and 
the components of net periodic pension cost.

WESCO International, Inc.Year ended December 31, 2012 

(In thousands)

Accumulated Benefit Obligation (ABO) at December 31 

  $ 

80,252

67

Change in Projected Benefit Obligation (PBO)
PBO at beginning of year 
Effect of acquisition 
Service cost  
Interest cost  
Participant contributions 
Actuarial loss (gain), including assumption changes 
Benefits paid 
PBO at end of year 

Change in Fair Value of Plan Assets
Plan assets at beginning of year 
Effect of acquisition 
Actual return on plan assets 
Employee contributions 
Company contributions 
Benefits paid 
Plan assets at end of year 

Funded status   

Amounts recognized in the balance sheet
Current liabilities 
Non-current liabilities 
Net pension liability at end of year 

Amounts recognized in Accumulated Other Comprehensive Loss Before Tax
Net actuarial loss (gain) 
Prior service cost   
Total recognized in accumulated other comprehensive loss   

Year ended December 31, 2012 

(In thousands)

Net Periodic Pension Cost
Service cost  
Interest cost  
Expected return on plan assets 
Total net periodic pension cost 

  $ 

  $ 

  $ 

  $ 

—
102,829
158
217
85
277
(100)
103,466

—
60,297
870
85
298
(100)
61,450

  $ 

(42,016)

  $ 

  $ 

(201)
(41,815)
(42,016)

  $ 

  $ 

(414)
—
(414)

  $ 

  $ 

158
217
(177)
198

(416)
(416)
(218)

Other Changes in Plan Assets and Projected Benefit Obligation Recognized in Other Comprehensive Earnings
  $ 
Net actuarial loss (gain) 
  $ 
Total recognized in other comprehensive earnings 
  $ 
Total recognized in net periodic pension cost and other comprehensive earnings 

Actuarial assumptions used to determine benefit obligations at December 31, 2012 are as follows:

Discount rate 
Average salary increases 

Pension Plan 

SERP

4.5% 
4.0% 

4.5%
4.0%

2012 Annual Report 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
68

Actuarial assumptions used to determine net periodic pension cost for the year ended December 31, 2012 are as follows:

Discount rate 
Expected return on long-term assets 
Rate of compensation increase 

The following benefit payments, which reflect expected future service, are expected to be paid:

Years ending December 31, 

(In thousands)

2013   
2014   
2015   
2016   
2017   
2018-2023   

Pension Plan 

SERP

4.5% 
6.3% 
4.0% 

4.5%
n/a
4.0%

  $ 

1,921
2,171
2,568
2,645
2,734
16,724

The Company expects to contribute approximately $3.9 million to the plans in 2013.

The Company’s pension plan weighted asset allocations as of December 31, 2012 by asset category are as follows:

Asset Category
Equity securities 
Debt securities   

57.7 %
42.3 %
100.0 %

The Plan’s long-term overall objective is to maintain benefits at their current level without affecting the cost of maintaining 
the plan, assuming that the demographic make-up of the group of members remains the same. 

The primary investment objective, in support of the overall objective, is to earn the highest rate of return possible for the 
Plan, while keeping risk at acceptable levels. The long-term return objective of the Plan is to achieve a minimum 
annualized rate of return in excess of the actuarial requirements. This translates into a required return of 3.5% percent 
above inflation, net of investment management fees. The return objective is consistent with the overall investment risk level 
that the Plan assumes in order to meet the pension obligations of the Plan. To achieve this long term investment objective, 
the Plan has adopted an asset mix that has a combination of equity and fixed income investments. Risk is controlled by 
investing in a well-diversified portfolio of asset classes. To meet this objective, a benchmark portfolio is established based 
on the expected returns for each asset class available. The investment of the Plan’s assets in accordance with the 
benchmark portfolio should enable the Plan to not only attain, but also exceed the minimum overall objective.

The following table presents the target asset mix based on market value for each investment category within which the 
investment managers must invest the Plan’s assets. The manager is required to rebalance the asset mix back to the target 
on a quarterly basis.

Asset Category   

Canadian equities 
U.S. equities 
Non-North American equities 
    Total equities 
Fixed income bond managers 

Target %

25 %
15 %
20 %
60 %
40 %

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly 
transaction between market participants at the measurement date. The fair value hierarchy distinguishes between (1) 
market participant assumptions developed based on market data obtained from independent sources (observable inputs) 

WESCO International, Inc. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
69

and (2) an entity’s own assumptions about market participant assumptions developed based on the best information 
available in the circumstances (unobservable inputs). The fair value hierarchy consists of three broad levels, which gives 
the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest 
priority to unobservable inputs (Level 3). The three levels of the fair value hierarchy are described below:

•	 Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, 

unrestricted assets or liabilities.

•	 Level 2 - Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either 
directly or indirectly, including quoted prices for similar assets or liabilities in active markets; quoted prices for 
identical or similar assets or liabilities in markets that are not active; inputs other than quoted prices that are 
observable for the asset and liability (e.g., interest rates); and inputs that are derived principally from or corroborated 
by observable market data by correlation or other means.

•	 Level 3 - Inputs that are both significant to the fair value measurement and unobservable.

The following section describes the valuation methodologies used by the trustees to measure the fair value of plan assets, 
including an indication of the level in the fair value hierarchy in which each type of asset is generally classified.

Equity Securities. These securities consist of the plan’s share of segregated funds that invest in the stock of publicly 
traded companies and are valued at the net asset value of shares held at December 31. As such, these securities are 
generally included in Level 2.

Debt Securities. These securities consist of segregated funds that invest in publicly traded U.S. and non-U.S. fixed interest 
obligations and government securities and are valued through consultation and evaluation with brokers in the institutional 
market using other observable market data. As such, these securities are generally included in Level 2. Also, these 
securities include cash and cash equivalents consisting of money market funds and are generally valued using quoted 
prices or observable market data. As such, these funds are included in Level 1.

The fair value methods described above may not be indicative of net realizable value or reflective of future fair values. 
Additionally, while the Company believes the valuation method used by the plan’s trustee is appropriate and consistent with 
other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial 
instruments could result in a different fair value measurement at the reporting date.

The following table represents the fair value of plan assets classified under the appropriate level of fair value hierarchy:

Equity securities 
Debt securities   
Total investments   

13. STOCK-BASED COMPENSATION

Level 1 

Level 2 

Level 3 

  $ 

  $ 

—  $ 

505 
505  $ 

35,223  $ 
25,722 
60,945  $ 

—  $ 
— 
—  $ 

Total

35,223
26,227
61,450

WESCO has sponsored four stock option plans: the 1999 Long-Term Incentive Plan (“LTIP”), the 1998 Stock Option Plan, the 
Stock Option Plan for Branch Employees and the 1994 Stock Option Plan. The LTIP was designed to be the successor plan to 
all prior plans. Any shares remaining reserved for future issuance under the prior plans are available for issuance under the 
LTIP. The LTIP and predecessor plans are administered by the Compensation Committee of the Board of Directors.

An initial reserve of 6,936,000 shares of common stock has been authorized for issuance under the LTIP. This reserve 
automatically increases by (i) the number of shares of common stock covered by unexercised options granted under prior 
plans that are canceled or terminated after the effective date of the LTIP, and (ii) the number of shares of common stock 
surrendered by employees to pay the exercise price and/or minimum withholding taxes in connection with the exercise of 
stock options granted under our prior plans. As of December 31, 2012, 2.3 million shares of common stock were reserved 

2012 Annual Report 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
70

under the LTIP for future equity award grants. In December 2003, in a privately negotiated transaction, WESCO redeemed 
the net equity value of stock options originally granted in 1994 and 1995, representing approximately 2.9 million shares. 
These shares are included in the reserve of common stock available for issuance under the LTIP.

Except for the performance-based award, awards granted vest and become exercisable once criteria based on time is 
achieved. Performance-based awards vest based on market or performance conditions. All awards vest immediately in the 
event of a change in control. Each award terminates on the tenth anniversary of its grant date unless terminated sooner 
under certain conditions.

As of December 31, 2012, there was $18.0 million of total unrecognized compensation expense related to non-vested 
stock-based compensation arrangements for all awards previously made of which approximately $11.5 million is expected 
to be recognized in 2013, $5.9 million in 2014 and $0.7 million in 2015.

The total intrinsic value of awards exercised during the years ended December 31, 2012, 2011, and 2010 was $41.1 
million, $13.8 million, and $9.9 million, respectively. The total amount of cash received from the exercise of options was 
$3.2 million, $0.4 million, and $1.8 million, respectively. The tax benefit associated with the exercise of stock options and 
stock-settled stock appreciation rights totaled $11.4 million, $5.4 million , and $3.1 million in 2012, 2011, and 2010, 
respectively. WESCO uses the direct only method and tax law ordering approach to calculate the tax effects of stock-based 
compensation. The tax benefit was recorded as a credit to additional paid-in capital.

The following table sets forth a summary of both stock options and stock appreciation rights and related information for the 
years indicated:

2012  

2011  

2010

Weighted 

Weighted 
Average 
Average  Remaining 
Exercise  Conntractual 
Life 

Price 

Awards 

Aggregate 
Intrinsic 
Value 
 (In thousands) 

Weighted 
Average 
Exercise 
Price 

Weighted 
Average 
Exercise 
Price

Awards 

Awards 

Beginning of year  

4,266,533 

$  39.64 

4,498,303 

$ 

36.38 

4,226,153 

$ 

35.30

Granted 

Exercised   

Cancelled  

End of year 

Exercisable at  
end of year 

257,932 

(1,340,986) 

(41,458) 

3,142,021 

64.12 

30.54 

49.96 

45.40 

399,260 

(543,154) 

(87,876) 

5.8 

$  53,058 

4,266,533 

59.16 

25.83 

46.86 

39.64 

708,949 

(335,155) 

(101,644) 

4,498,303 

33.19

14.79

40.62

36.38

2,450,391 

$  43.16 

5.1 

$  46,898 

3,176,161 

$ 

39.23 

3,011,120 

$ 

38.65

WESCO granted the following stock-settled stock appreciation rights at the following weighted average assumptions:

Stock-settled appreciation rights granted 
Risk free interest rate 
Expected life (in years) 
Expected volatility 

2012 

2011 

2010

257,932 

399,260 

708,949

0.9% 
5 
50% 

2.3% 
5 
49% 

1.8%
5
49%

WESCO International, Inc. 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The following table sets forth a summary of time-based restricted stock units and related information for the year ended 
December 31, 2012:

71

Unvested at December 31, 2011 
  Granted   
  Vested 
  Forfeited  
Unvested at December 31, 2012 

Weighted
Average
Fair
Value
37.16
64.27
26.02
46.09
52.28

Awards 
203,291  $ 

74,724 
(80,539) 
(10,141) 
187,335  $ 

The weighted average fair value per stock-settled appreciation right granted was $27.89, $26.46 and $14.71 for the years 
ended December 31, 2012, 2011 and 2010, respectively. The weighted average fair value per restricted stock unit granted 
was $64.27, $60.05 and $33.05 for the years ended December 31, 2012, 2011 and 2010, respectively. WESCO 
recognized $15.1 million, $15.4 million and $15.8 million of non-cash stock-based compensation expense, which is 
included in selling, general and administrative expenses, in 2012, 2011 and 2010, respectively.

The following table sets forth a summary of performance-based awards for the year ended December 31, 2012:

Unvested at December 31, 2011 
  Granted   
  Vested 
  Forfeited  
Unvested at December 31, 2012 

Weighted
Average
Fair
Value
—
75.72
—
75.72
75.72

Awards 
— 
46,804  $ 
— 
(304) 
46,500  $ 

The performance-based awards in the table above include 23,250 shares, and the ultimate number of shares that vest will 
be dependent upon WESCO’s total stockholder return in relation to the total stockholder return of a select group of peer 
companies over a three-year period. These awards are valued based upon a Monte Carlo simulation model. The probability 
of meeting the market criteria was considered when calculating the estimated fair market value on the date of grant. These 
awards were accounted for as awards with market conditions, which are recognized over the service period, regardless of 
whether the market conditions are achieved and the awards ultimately vest.

The fair value of the performance shares based on total stockholder return granted during the year ended December 31, 
2012 were estimated using the following weighted-average assumptions:

Grant date share price 
WESCO expected volatility 
Peer group median volatility 
Risk-free interest rate 
Correlation 

Weighted Average Assumptions

  $ 

64.33
41.97%
33.40%
0.40%
135.4%

Vesting of the remaining 23,250 shares of performance-based awards in the table above will be dependent upon the 
three-year average growth rate of WESCO’s net income. These awards are valued based upon the grant-date closing price 
of WESCO’s common stock. These awards were accounted for as awards with performance conditions; accordingly, 
stock-based compensation expense is recognized over the performance period and considers the probability that the 
performance targets will be achieved.

2012 Annual Report 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
72

14. COMMITMENTS AND CONTINGENCIES

Future minimum rental payments required under operating leases, primarily for real property that have noncancelable 
lease terms in excess of one year as of December 31, 2012, are as follows:

(In thousands)

2013   
2014   
2015   
2016   
2017   
Thereafter 

  $ 

53,463
40,253
35,726
29,147
22,990
53,092

Rental expense for the years ended December 31, 2012, 2011 and 2010 was $50.0 million, $48.0 million and $45.4 
million, respectively.

From time to time, a number of lawsuits and claims have been or may be asserted against WESCO relating to the conduct 
of its business, including routine litigation relating to commercial and employment matters. The outcomes of litigation 
cannot be predicted with certainty, and some lawsuits may be determined adversely to WESCO. However, management 
does not believe that the ultimate outcome is likely to have a material adverse effect on WESCO’s financial condition or 
liquidity, although the resolution in any fiscal quarter of one or more of these matters may have a material adverse effect on 
WESCO’s results of operations for that period.

As initially reported in our 2008 Annual Report on Form 10-K, WESCO International, Inc. (the “Company”), through its 
wholly owned subsidiary, WESCO Distribution, Inc., is a defendant in a lawsuit filed in a state court in Indiana in which a 
customer, ArcelorMittal Indiana Harbor, Inc. (“AIH”), alleges that the Company sold defective products to AIH in 2004 that 
were supplied to the Company by others. The lawsuit sought monetary damages in the amount of approximately $50 
million. On February 14, 2013, the jury returned a verdict in favor of AIH and awarded damages in the amount of 
approximately $36 million. Judgment was entered on the jury’s verdict on February 14, 2013. The Company disputes this 
outcome and intends to appeal the judgment. The judgment amount may increase or decrease based on the outcome of 
various post-trial proceedings, which cannot be predicted with certainty. The Company has also submitted the claims to its 
insurance carriers. 

15. SEGMENTS AND RELATED INFORMATION

WESCO provides distribution of product and services through its eleven operating segments which have been aggregated 
as one reportable segment. WESCO has over 250,000 unique product stock keeping units and markets more than 
1,000,000 products for customers. There were no material amounts of sales or transfers among geographic areas and no 
material amounts of export sales.

WESCO attributes revenues from external customers to individual countries on the basis of the point of sale. The following 
table sets forth information about WESCO by geographic area:

Net Sales  
Year Ended December 31,  

Long-Lived Assets 
December 31,

2012  

2011 

 2010  

2012 

2011  

2010

(In thousands)

United States  

$  5,215,849  79 % 

$  4,994,641  82 % 

$  4,198,420  83 % 

$ 144,947 

$ 131,989 

$ 117,768

Canada 

Mexico 

Subtotal North  
  American Operations 
Other Foreign  

  1,084,109  17 % 

900,551  15 % 

682,415  13 % 

  100,366 

  24,609 

  12,446

92,370  1 % 

84,871  1 % 

51,413  1 % 

532 

572 

641

  6,392,328    

  5,980,063 

  4,932,248 

  245,845 

  157,170 

  130,855

186,973  3 % 

145,655  2 % 

131,614  3 % 

6,049 

771 

325

Total U.S. and Foreign 

$  6,579,301    

$  6,125,718 

$  5,063,862 

$ 251,894 

$ 157,941 

$ 131,180

WESCO International, Inc. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
 
 
 
 
 
 
 
 
  
  
The following table sets forth sales information about WESCO’s sales by product category:

73

Year Ended December 31, 

(percentages based on total sales)

General and Industrial Supplies 
Wire, Cable and Conduit 
Data and Broadband Communications 
Power Distribution Equipment 
Lighting and Controls 
Control, Automation and Motors 

16. OTHER FINANCIAL INFORMATION

2012 

2011 

2010

36% 
17% 
15% 
13% 
9% 
10% 

34% 
18% 
17% 
11% 
9% 
11% 

35%
18%
15%
12%
10%
10%

WESCO International has outstanding $344.9 million in aggregate principal amount of 2029 Debentures. The 2029 
Debentures are fully and unconditionally guaranteed by WESCO Distribution, a 100% owned subsidiary of WESCO 
International, on a senior subordinated basis to all existing and future senior indebtedness of WESCO Distribution.

Condensed consolidating financial information for WESCO International, WESCO Distribution, Inc. and the non-guarantor 
subsidiaries is as follows:

2012 Annual Report 
 
74

Condensed Consolidating Balance Sheets

December 31, 2012 

(In thousands)

Cash and cash equivalents 
Trade accounts receivable, net 
Inventories, net  
Other current assets 
  Total curent assets 
Intercompany receivables, net 
Property, buildings and equipment, net 
Intangible assets, net 
Goodwill and other intangibles, net 
Investments in affiliates and other  
  noncurrent assets 
  Total assets   

Accounts payable   
Short-term debt 
Other current liabilities 
  Total current liabilities 
Intercompany payables, net 
Long-term debt  
Other noncurrent liabilities 
Stockholders’ equity 
  Total liabilities and stockholders’ equity 

December 31, 2011 

(In thousands)

Cash and cash equivalents 
Trade accounts receivable, net 
Inventories, net  
Other current assets 
  Total current assets 
Intercompany receivables, net 
Property, buildings and equipment, net 
Intangible assets, net 
Goodwill and other intangibles, net 
Investments in affiliates and other  
  noncurrent assets 
  Total assets   

Accounts payable   
Other current liabilities 
  Total current liabilities 
Intercompany payables, net 
Long-term debt  
Other noncurrent liabilities 
Stockholders’ equity 
  Total liabilities and stockholders’ equity 

WESCO 
International, Inc.  Distribution, Inc.  

WESCO  

Non-Guarantor  
Subsidiaries 

Consolidating 
and Eliminating 
Entries  

Consolidated

$ 

6  $ 
— 
— 
— 
6 
— 
— 
— 
— 

33,818  $ 

52,275  $ 
— 
347,008 
66,106 
465,389 
— 
58,523 
6,153 
246,125 

  1,036,235 
446,966 
119,423 
  1,636,442 
  1,077,001 
152,200 
490,608 
  1,531,672 

—  $ 
— 
— 
— 
— 
  (1,077,001) 
— 
— 
— 

86,099
  1,036,235
793,974
185,529
  2,101,837
—
210,723
496,761
  1,777,797

  2,443,259 
42,511
$  2,443,265  $  4,383,806  $  4,908,920  $ (7,106,362)  $  4,629,629

  (6,029,361) 

  3,607,616 

20,997 

$ 

305,564  $ 

401,016  $ 

706,580
—  $ 
30,136
30,136 
— 
271,279
151,904 
18,419 
  1,007,995
487,604 
18,419 
—
— 
671,736 
  1,695,413
676,439 
171,213 
372,530
154,137 
28,099 
  1,553,798 
  1,553,691
  3,590,740 
$  2,443,265  $  4,383,806  $  4,908,920  $ (7,106,362)  $  4,629,629

—  $ 
— 
— 
— 
  (1,077,001) 
— 
— 
  (6,029,361) 

— 
100,956 
501,972 
405,265 
847,761 
190,294 
  2,438,514 

WESCO 
International, Inc.  Distribution, Inc.  

WESCO  

Non-Guarantor  
Subsidiaries 

Consolidating 
and Eliminating 
Entries  

Consolidated

$ 

5  $ 
— 
— 
270 
275 
— 
— 
— 
— 

19,452  $ 

44,412  $ 
— 
341,423 
32,548 
418,383 
— 
54,038 
6,981 
246,125 

939,422 
285,544 
74,344 
  1,318,762 
  1,816,069 
79,512 
149,893 
762,002 

—  $ 
— 
— 
— 
— 
  (1,816,069) 
— 
— 
— 

63,869
939,422
626,967
107,162
  1,737,420
—
133,550
156,874
  1,008,127

42,481
  2,219,142 
$  2,219,417  $  4,141,423  $  4,157,983  $ (7,440,371)  $  3,078,452

  (5,624,302) 

  3,415,896 

31,745 

$ 

—  $ 

642,777
219,268  $ 
203,069
190,463 
7,797 
845,846
409,731 
7,797 
—
— 
668,447 
642,922
285,787 
169,054 
243,774
52,466 
28,131 
  1,345,988 
  1,345,910
  3,409,999 
$  2,219,417  $  4,141,423  $  4,157,983  $ (7,440,371)  $  3,078,452

—  $ 
— 
— 
  (1,816,069) 
— 
— 
  (5,624,302) 

423,509  $ 
4,809 
428,318 
  1,147,622 
188,081 
163,177 
  2,214,225 

WESCO International, Inc. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Condensed Consolidating Statements of Income

Year Ended December 31, 2012 

(In thousands)

WESCO 
International, Inc.  Distribution, Inc.  

WESCO  

Non-Guarantor  
Subsidiaries 

Consolidating 
and Eliminating 
Entries  

Consolidated

75

$ 

Net sales  
Cost of goods sold  
Selling, general and administrative expenses 
Depreciation and amortization 
Results of affiliates’ operations 
Interest expense, net 
Loss on debt extinguishment 
Provision for income taxes 
  Net income (loss) 

—  $  3,442,714  $  3,265,007  $ 
— 
59 
— 
235,467 
23,163 
— 
10,486 
201,759 

  2,637,334 
367,555 
22,353 
— 
6,916 
— 
45,901 
184,948 

  2,738,941 
593,400 
15,208 
184,947 
17,683 
3,470 
23,493 
235,466 

(128,420)  $  6,579,301
  5,247,855
(128,420) 
961,014
— 
37,561
— 
(420,414) 
—
47,762
— 
3,470
— 
79,880
— 
201,759
(420,414) 

 Less: Net loss attributable to  
  noncontrolling interest 
 Net income (loss) attributable to  
  WESCO International, Inc. 

Year Ended December 31, 2011 

(In thousands)

— 

— 

(18) 

— 

(18)

$ 

201,759  $ 

235,466  $ 

184,966  $ 

(420,414)  $ 

201,777

WESCO 
International, Inc.  Distribution, Inc.  

WESCO  

Non-Guarantor  
Subsidiaries 

Consolidating 
and Eliminating 
Entries  

Consolidated

$ 

Net sales  
Cost of goods sold  
Selling, general and administrative expenses 
Depreciation and amortization 
Results of affiliates’ operations 
Interest expense, net 
Provision for income taxes 
  Net income   

—  $  3,230,753  $  2,998,639  $ 
— 
70 
— 
229,621 
23,990 
9,321 
196,240 

  2,585,978 
546,902 
11,996 
176,581 
21,382 
11,455 
229,621 

  2,406,845 
325,011 
19,611 
— 
8,231 
62,360 
176,581 

(103,674)  $  6,125,718
  4,889,149
(103,674) 
871,983
— 
31,607
— 
(406,202) 
—
53,603
— 
83,136
— 
196,240
(406,202) 

 Less: Net loss attributable to  
  noncontrolling interest 
 Net income attributable to  
  WESCO International, Inc. 

Year Ended December 31, 2010 

(In thousands)

— 

— 

(11) 

— 

(11)

$ 

196,240  $ 

229,621  $ 

176,592  $ 

(406,202)  $ 

196,251

WESCO 
International, Inc.  Distribution, Inc.  

WESCO  

Non-Guarantor  
Subsidiaries 

Consolidating 
and Eliminating 
Entries  

Consolidated

$ 

Net sales  
Cost of goods sold  
Selling, general and administrative expenses 
Depreciation and amortization 
Results of affiliates’ operations 
Interest expense, net 
Other income 
Provision for income taxes 

—  $  2,820,855  $  2,318,495  $ 
— 
234 
— 
153,107 
27,565 
— 
9,831 

  2,262,038 
518,100 
12,581 
130,267 
22,291 
(4,285) 
(12,708) 

  1,878,875 
245,249 
11,354 
— 
7,707 
— 
45,041 

(75,488)  $  5,063,862
  4,065,425
(75,488) 
763,583
— 
23,935
— 
(283,374) 
—
57,563
— 
(4,285)
— 
42,164
— 

 Net income attributable to  
  WESCO International, Inc. 

$ 

115,477  $ 

153,105  $ 

130,269  $ 

(283,374)  $ 

115,477

2012 Annual Report 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
76

Condensed Consolidating Statements of Cash Flows

Year Ended December 31, 2012 

(In thousands)

Net cash (used) provided  
  by operating activities 
Investing activities:
  Capital expenditures 
  Acquisition payments 
  Advances to subsidiaries and other 
  Net cash used in investing activities 
Financing activities:
  Net borrowings (repayments) 
  Equity transactions 
  Other  

 Net cash provided by  
  financing activities 

Effect of exchange rate changes  
  on cash and cash equivalents 
Net change in cash and cash equivalents 
Cash and cash equivalents  
  at the beginning of year 
Cash and cash equivalents  
  at the end of period 

Year Ended December 31, 2011 

(In thousands)

Net cash (used) provided  
  by operating activities 
Investing activities:
  Capital expenditures 
  Acquisition payments 
  Advances to subsidiaries and other 
  Net cash used in investing activities 
Financing activities:
  Net borrowings (repayments) 
  Equity transactions 
  Other  

 Net cash provided  
  (used) by financing activities 
Effect of exchange rate changes  
  on cash and cash equivalents 
Net change in cash and cash equivalents 
Cash and cash equivalents  
  at the beginning of year 
Cash and cash equivalents  
  at the end of period 

WESCO 
International, Inc.  Distribution, Inc.  

WESCO  

Non-Guarantor  
Subsidiaries 

Consolidating 
and Eliminating 
Entries  

Consolidated

$ 

(15,897)  $ 

300,932  $ 

3,149  $ 

—  $ 

288,184

— 
— 
— 
— 

(18,697) 
(142,483) 
  (1,149,143) 
  (1,310,323) 

(4,387) 
  (1,146,997) 
1,558 
  (1,149,826) 

— 
— 
  1,149,143 
  1,149,143 

(23,084)
  (1,289,480)
1,558
  (1,311,006)

13,646 
2,252 
— 

  1,039,590 
— 
(22,336) 

  1,163,743 
— 
(3,704) 

  (1,149,143) 
— 
— 

  1,067,836
2,252
(26,040)

15,898 

  1,017,254 

  1,160,039 

  (1,149,143) 

  1,044,048

— 
1 

5 

— 
7,863 

1,004 
14,366 

44,412 

19,452 

— 
— 

— 

1,004
22,230

63,869

$ 

6  $ 

52,275  $ 

33,818  $ 

—  $ 

86,099

WESCO 
International, Inc.  Distribution, Inc.  

WESCO  

Non-Guarantor  
Subsidiaries 

Consolidating 
and Eliminating 
Entries  

Consolidated

$ 

(19,823)  $ 

181,348  $ 

6,008  $ 

—  $ 

167,533

— 
— 
— 
— 

(28,602) 
(7,750) 
(43,936) 
(80,288) 

21,840 
(2,013) 
— 

(105,931) 
— 
16,942 

(4,745) 
(40,343) 
— 
(45,088) 

44,033 
— 
(1,746) 

— 
— 
44,033 
44,033 

(44,033) 
— 
— 

(33,347)
(48,093)
97
(81,343)

(84,091)
(2,013)
15,196

19,827 

(88,989) 

42,287 

(44,033) 

(70,908)

— 
4 

1 

— 
12,071 

(4,990) 
(1,783) 

32,341 

21,235 

— 
— 

— 

(4,990)
10,292

53,577

$ 

5  $ 

44,412  $ 

19,452  $ 

—  $ 

63,869

WESCO International, Inc. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
77

Condensed Consolidating Statements of Cash Flows (continued)

Year Ended December 31, 2010 

(In thousands)

Net cash (used) provided  
  by operating activities 
Investing activities:
  Capital expenditures 
  Acquisition payments 
  Sale of subsidiary 
  Advances to subsidiaries and other 
  Net cash used in investing activities 
Financing activities:
  Net borrowings (repayments) 
  Equity transactions 
  Other  

 Net cash provided  
  (used) by financing activities 
Effect of exchange rate changes  
  on cash and cash equivalents 
Net change in cash and cash equivalents 
Cash and cash equivalents  
  at the beginning of year 
Cash and cash equivalents  
  at the end of period 

WESCO 
International, Inc.  Distribution, Inc.  

WESCO  

Non-Guarantor  
Subsidiaries 

Consolidating 
and Eliminating 
Entries  

Consolidated

$ 

(96,685)  $ 

301,578  $ 

(77,610)  $ 

—  $ 

127,283

— 
— 
— 
— 
— 

92,350 
4,333 
— 

(12,903) 
(265,397) 
40,000 
16,431 
(221,869) 

(58,894) 
— 
(5,398) 

(2,229) 
— 
— 
— 
(2,229) 

3,555 
— 
(1,756) 

— 
— 
— 
3,555 
3,555 

(3,555) 
— 
— 

(15,132)
(265,397)
40,000
19,986
(220,543)

33,456
4,333
(7,154)

96,683 

(64,292) 

1,799 

(3,555) 

30,635

— 
(2) 

3 

— 
15,417 

3,873 
(74,167) 

16,924 

95,402 

— 
— 

— 

3,873
(58,752)

112,329

$ 

1  $ 

32,341  $ 

21,235  $ 

—  $ 

53,577

The Company has revised the condensed consolidating statement of cash flows of WESCO Distribution, Inc. The revised statements present cash paid for 
acquisitions of $40.3 million for the year ended December 31, 2011 as intercompany loans to Non-Guarantor Subsidiaries. These payments represent acquisi-
tions made by the Non-Guarantor subsidiaries that were funded by WECSO Distribution, Inc. Such transactions have now been revised to reflect an investing cash 
outflow and a corresponding intercompany borrowing from WESCO Distribution, Inc as a financing cash inflow in the statement of cash flows of the Non-Guarantor 
Subsidiaries. The impact of such revision, which the Company has determined was not material, did not have any impact on the consolidated amounts, nor did it 
impact the Company’s obligations under the 2029 Debentures. The prior period quarterly condensed consolidating financial statements will be similarly revised as 
the information is presented in our Form 10-Q filings in fiscal year 2013. 

The condensed consolidating financial information was also revised to properly reflect interest expense related to intercompany borrowings in the amount of  
$4.9 million and $5.5 million for the years ended December 31, 2011 and 2010, respectively. 

2012 Annual Report 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
78

17. SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED)

The following table sets forth selected quarterly financial data for the years ended December 31, 2012 and 2011:

First Quarter 

Second Quarter 

Third Quarter 

Fourth Quarter

2012 
Net Sales 
Cost of goods sold  
Income from operations 
Income before income taxes 
Net income   
Net income attributable to  
  WESCO International, Inc. 
Basic earnings per share attributable to  
  WESCO International, Inc.(A) 
Diluted earnings per share attributable to  
  WESCO International, Inc.(B) 

2011 
Net Sales 
Cost of goods sold  
Income from operations 
Income before income taxes 
Net income   
Net income attributable to  
  WESCO International, Inc. 
Basic earnings per share attributable to  
  WESCO International, Inc.(A) 
Diluted earnings per share attributable to  
  WESCO International, Inc.(B) 

  $  1,606,018  $  1,672,734  $  1,656,186  $  1,644,363
  1,307,093
50,356
32,117
26,496

  1,317,432 
103,032 
90,378 
63,391 

  1,337,062 
96,051 
84,574 
58,932 

  1,286,268 
83,532 
74,570 
52,940 

52,978 

58,874 

63,415 

26,510

1.22 

1.03 

1.35 

1.15 

1.45 

1.25 

0.60

0.52

  $  1,431,305  $  1,524,515  $  1,580,376  $  1,589,522
  1,261,483
91,486
79,534
54,838

  1,264,745 
91,752 
76,673 
53,890 

  1,217,666 
84,996 
71,065 
50,207 

  1,145,255 
64,745 
52,104 
37,305 

37,305 

50,207 

53,890 

54,849

0.87 

0.74 

1.16 

1.00 

1.24 

1.11 

1.27

1.12

(A)   Earnings per share (EPS) in each quarter is computed using the weighted average number of shares outstanding during the quarter while EPS for the full 
year is computed by taking the average of the weighted average number of shares outstanding each quarter. Thus, the sum of the four quarters’ EPS may 
not equal the full-year EPS.

(B)   Diluted EPS in each quarter is computed using the weighted average number of shares outstanding and common share equivalents during that quarter 

while Diluted EPS for the full year is computed by taking the average of the weighted average number of shares outstanding and common share 
equivalents each quarter. Thus, the sum of the four quarters’ Diluted EPS may not equal the full-year Diluted EPS.

WESCO International, Inc. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
79

Item 9. Changes in and Disagreements with Accountants on Accounting and 
Financial Disclosure.

None.

Item 9A. Controls and Procedures.

Conclusion Regarding the Effectiveness of Disclosure Controls and Procedures

Under the supervision and with the participation of our management, including our principal executive officer and principal 
financial officer, we conducted an evaluation of our disclosure controls and procedures as such term is defined under Rule 
13a-15(e) promulgated under the Exchange Act. Based on this evaluation, our principal executive officer and our principal 
financial officer concluded that our disclosure controls and procedures were effective as of the end of the period covered 
by this report.

Management’s Report on Internal Control Over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting as such 
term is defined in Exchange Act Rule 13a-15(f). Because of its inherent limitations, internal control over financial reporting 
may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject 
to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with 
the policies or procedures may deteriorate. Under the supervision and with the participation of our management, including 
our principal executive officer and principal financial officer, we conducted an evaluation of the effectiveness of our internal 
control over financial reporting based on the framework in Internal Control — Integrated Framework issued by the 
Committee of Sponsoring Organizations of the Treadway Commission. Based on our evaluation under the framework in 
Internal Control — Integrated Framework, our management concluded that our internal control over financial reporting was 
effective as of December 31, 2012. Management has excluded EECOL Electric Corporation (EECOL) and Conney Safety 
Products (Conney) from its assessment of internal control over financial reporting as of December 31, 2012 because they 
were acquired by the Company in a purchase business combination during 2012. EECOL and Conney are wholly-owned 
subsidiaries whose total assets represent $1.4 billion and $144.8 million, respectively, and total revenues of $24.1 million 
and $39.0 million, respectively, of the related consolidated financial statement amounts as of and for the year ended 
December 31, 2012.

The effectiveness of the Company’s internal control over financial reporting as of December 31, 2012 has been audited by 
PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report, which is included 
herein.

Changes in Internal Control Over Financial Reporting

During the last fiscal quarter of 2012, there were no changes in the Company’s internal control over financial reporting 
identified in connection with management’s evaluation of the effectiveness of the Company’s internal control over financial 
reporting that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over 
financial reporting.

Item 9B. Other Information.

None.

2012 Annual Report80

PART III

Item 10. Directors, Executive Officers and Corporate Governance.

The information set forth under the captions “Board of Directors” and “Executive Officers” in our definitive Proxy Statement 
for our 2013 Annual Meeting of Stockholders is incorporated herein by reference.

CODES OF BUSINESS ETHICS AND CONDUCT

We have adopted a Code of Business Ethics and Conduct (“Code of Conduct”) that applies to our Directors, officers and 
employees that is available on our website at www.wesco.com by selecting the “Investors” tab followed by the “Corporate 
Governance” heading. Any amendment or waiver of the Code of Conduct for our officers or Directors will be disclosed 
promptly at that location on our website.

We also have adopted a Senior Financial Executive Code of Principles for Senior Executives (“Senior Financial Executive 
Code”) that applies to our principal executive officer, principal financial officer, principal accounting officer or controller, or 
persons performing these functions. The Senior Financial Executive Code is also available at that same location on our 
website. We intend to timely disclose any amendment or waiver of the Senior Financial Executive Code on our website and 
will retain such information on our website as required by applicable SEC rules.

A copy of the Code of Conduct and/or Senior Financial Executive Code may also be obtained upon request by any 
stockholder, without charge, by writing to us at WESCO International, Inc., 225 West Station Square Drive, Suite 700, 
Pittsburgh, Pennsylvania 15219, Attention: Corporate Secretary.

The information required by Item 10 that relates to our Directors and executive officers is incorporated by reference from 
the information appearing under the captions “Corporate Governance”, “Board and Committee Meetings” and “Security 
Ownership” in our definitive Proxy Statement for our 2013 Annual Meeting of Stockholders that is to be filed with the SEC 
pursuant to the Exchange Act within 120 days of the end of our fiscal year on December 31, 2012.

Item 11. Executive Compensation.

The information set forth under the captions “Compensation Discussion and Analysis” and “Director Compensation” in our 
definitive Proxy Statement for our 2013 Annual Meeting of Stockholders is incorporated herein by reference.

WESCO International, Inc.81

Item 12. Security Ownership of Certain Beneficial Owners and Management 
and Related Stockholder Matters.

The information set forth under the caption “Security Ownership” in our definitive Proxy Statement for our 2012 Annual 
Meeting of Stockholders is incorporated herein by reference.

The following table provides information as of December 31, 2012 with respect to the shares of our common stock that 
may be issued under our existing equity compensation plans:

Plan Category    

Number of securities to be 
issued upon exercise of 
outstanding options,  
warrants and rights  

Weighted average  
exercise price of  
outstanding options,  
warrants and rights  

Equity compensation plans approved  
  by security holders 
Equity compensation plans not approved  
  by security holders 
Total   

  3,188,521 

  $ 

45.84 

— 
  3,188,521 

  $ 

— 
45.84 

Number of securities 
remaining available 
for future issuance 
under equity 
compensation plans

  2,332,211

—
  2,332,211

Item 13. Certain Relationships and Related Transactions, and  
Director Independence.

The information set forth under the captions “Transactions with Related Persons” and “Corporate Governance” in our 
definitive Proxy Statement for our 2013 Annual Meeting of Stockholders is incorporated herein by reference.

Item 14. Principal Accountant Fees and Services.

The information set forth under the caption “Independent Registered Public Accounting Firm Fees and Services” in our 
definitive Proxy Statement for our 2013 Annual Meeting of Stockholders is incorporated herein by reference.

2012 Annual Report 
 
  
  
  
  
  
  
  
  
  
 
 
 
 
 
  
  
 
 
 
 
 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
82

PART IV

Item 15. Exhibits and Financial Statement Schedule.

The financial statements, financial statement schedule and exhibits listed below are filed as part of this annual report:

(a)  

(1)  Financial Statements 

The list of financial statements required by this item is set forth in Item 8, “Financial Statements and 
Supplementary Data,” and is incorporated herein by reference.

(2)  Financial Statement Schedule 

Schedule II — Valuation and Qualifying Accounts

(b)   Exhibits

Exhibit No.

Description of Exhibit

Prior Filing or Sequential Page Number

2.1

2.2

2.3

3.1

3.2

4.1

4.2

10.1

10.2

10.3

10.4

Recapitalization Agreement, dated as of March 27, 
1998, among Thor Acquisitions L.L.C., WESCO 
International, Inc. (formerly known as CDW Holding 
Corporation) and certain security holders of WESCO 
International, Inc.

Membership Interest Purchase Agreement, dated as 
of November 16, 2010, by and among WESCO 
Distribution, Inc., WDCH, LP, TVC Communications, 
L.L.C. and Palisades TVC Holding, L.L.C.

Share Purchase Agreement, dated as of October 15, 
2012, between WDCC Enterprises Inc., the 
Shareholders party thereto, EECOL Holdings Ltd., 
Jarich Holdings Ltd., EESA Corp., EESA Holdings Ltd. 
and EECOL Electric Corp.

Restated Certificate of Incorporation of WESCO 
International, Inc.

Amended and Restated By-laws of WESCO 
International, Inc., effective as of September 28, 
2009.

Indenture, dated August 27, 2009, by and among 
WESCO International, Inc., WESCO Distribution, Inc. 
and The Bank of New York, as Trustee.

Form of 6.0% Convertible Senior Debenture due 
2029.

Form of Stock Option Agreement.

Form of Amendment to Stock Option Agreement.

Form of Management Stock Option Agreement.

Incorporated by reference to Exhibit 2.1 to WESCO’s 
Registration Statement on Form S-4 (No. 333-43225)

Incorporated by reference to Exhibit 2.1 to WESCO’s 
Current Report on Form 8-K, dated November 16, 
2010

Incorporated by reference to Exhibit 2.1 to WESCO's 
Current Report on Form 8-K, dated October 17, 2012

Incorporated by reference to Exhibit 3.1 to WESCO’s 
Registration Statement on Form S-4 (No. 333-70404)

Incorporated by reference to Exhibit 3.1 to WESCO’s 
Current Report on Form 8-K, dated September 28, 
2009

Incorporated by reference to Exhibit 4.1 to WESCO’s 
Current Report on Form 8-K, dated August 27, 2009

Included in Exhibit 4.1

Incorporated by reference to Exhibit 10.4 to WESCO’s 
Registration Statement on Form S-4 (No. 333-43225)

Incorporated by reference to Exhibit 10.2 to WESCO’s 
Current Report on Form 8-K, dated March 2, 2006

Incorporated by reference to Exhibit 10.2 to WESCO’s 
Quarterly Report on Form 10-Q for the quarter ended 
September 30, 1998

Form of Amendment to Management Stock Option 
Agreement.

Incorporated by reference to Exhibit 10.6 to WESCO’s 
Current Report on Form 8-K dated March 2, 2006

WESCO International, Inc. 
 
83

Incorporated by reference to Exhibit 10.5 to WESCO's 
Annual Report on Form 10-K for the year ended 
December 31, 2011

Incorporated by reference to Appendix B to the Proxy 
Statement for the 2008 Annual Meeting of 
Stockholders filed on Schedule 14A on April 24, 2008

Incorporated by reference to Exhibit 10.7 to WESCO's 
Annual Report on Form 10-K for the year ended 
December 31, 2011

Incorporated by reference to Exhibit 10.8 to WESCO's 
Annual Report on Form 10-K for the year ended 
December 31, 2011

Incorporated by reference to Exhibit 10.3 to WESCO’s 
Quarterly Report on Form 10-Q for the quarter ended 
June 30, 2010

Incorporated by reference to Exhibit 10.4 to WESCO’s 
Quarterly Report on Form 10-Q for the quarter ended 
June 30, 2010

Incorporated by reference to Exhibit 10.27 to WESCO’s 
Annual Report on Form 10-K for the year ended 
December 31, 2002

Incorporated by reference to Exhibit 10.28 to WESCO’s 
Annual Report on Form 10-K for the year ended 
December 31, 2002

Incorporated by reference to Exhibit 10.19 to WESCO’s 
Registration Statement on Form S-4 (No. 333-43225)

Incorporated by reference to Exhibit 2.01 to WESCO’s 
Current Report on Form 8-K, dated September 11, 
1998

Incorporated by reference to Exhibit 10.25 to WESCO’s 
Annual Report on Form 10-K for the year ended 
December 31, 2002

Incorporated by reference to Exhibit 10.3 to WESCO’s 
Current Report on Form 8-K, dated September 28, 
2005

Incorporated by reference to Exhibit 2.1 to WESCO’s 
Current Report on Form 8-K, dated November 8, 2006

Incorporated by reference to Exhibit 10.1 to WESCO’s 
Current Report on Form 8-K, dated April 13, 2009

1999 Deferred Compensation Plan for Non-Employee 
Directors, as amended and restated September 20, 
2007.

1999 Long-Term Incentive Plan, as restated effective 
as of May 21, 2008.

Form of Stock Appreciation Rights Agreement for 
Employees.

Form of Restricted Stock Unit Agreement for 
Employees.

Form of Stock Appreciation Rights Agreement for 
Non-Employee Directors.

Form of Restricted Stock Unit Agreement for 
Non-Employee Directors.

Lease dated December 13, 2002 between WESCO 
Distribution, Inc. and WESCO Real Estate IV, LLC.

Lease Guaranty dated December 13, 2002 by WESCO 
International, Inc. in favor of WESCO Real Estate IV, 
LLC.

Amended and Restated Registration and Participation 
Agreement, dated as of June 5, 1998, among WESCO 
International, Inc. and certain security holders of 
WESCO International, Inc. named therein.

Asset Purchase Agreement, dated as of September 
11, 1998, among Bruckner Supply Company, Inc. 
and WESCO Distribution, Inc.

Amendment dated March 29, 2002 to Asset 
Purchase Agreement, dated as of September 11, 
1998, among Bruckner Supply Company, Inc. and 
WESCO Distribution, Inc.

Agreement and Plan of Merger, dated August 16, 
2005, by and among Carlton-Bates Company, the 
shareholders of Carlton-Bates Company signatory 
thereto, the Company Representative (as defined 
therein), WESCO Distribution, Inc. and C-B WESCO, 
Inc.

Agreement and Plan of Merger, dated October 2, 
2006, by and among WESCO Distribution, Inc., 
WESCO Voltage, Inc., Communications Supply 
Holdings, Inc. and Harvest Partners, LLC, as 
Shareholders’ Representative.

Third Amended and Restated Receivables Purchase 
Agreement, dated as of April 13, 2009, by and among 
WESCO Receivables Corp., WESCO Distribution, Inc., 
the Purchasers and Purchaser Agents party thereto 
and PNC Bank, National Association (as successor to 
Wachovia Capital Markets, LLC), as Administrator.

First Amendment to the Third Amended and Restated 
Receivables Purchase Agreement, dated as of August 
31, 2009.

Incorporated by reference to Exhibit 10.4 to WESCO’s 
Quarterly Report on Form 10-Q for the quarter ended 
September 30, 2009

10.5

10.6

10.7

10.8

10.9

10.10

10.11

10.12

10.13

10.14

10.15

10.16

10.17

10.18

10.19

2012 Annual Report84

10.20

10.21

10.22

10.23

10.24

10.25

10.26

10.27

10.28

10.29

10.30

10.31

Second Amendment to the Third Amended and 
Restated Receivables Purchase Agreement, dated as 
of September 7, 2010.

Incorporated by reference to Exhibit 10.1 to WESCO’s 
Current Report on Form 8-K, dated September 7, 
2010

Third Amendment to the Third Amended and 
Restated Receivables Purchase Agreement, dated as 
of December 16, 2010.

Incorporated by reference to Exhibit 10.1 to WESCO’s 
Current Report on Form 8-K, dated December 16, 
2010

Fourth Amendment to the Third Amended and 
Restated Receivables Purchase Agreement, dated as 
of August 22, 2011.

Fifth Amendment to the Third Amended and Restated 
Receivables Purchase Agreement, dated as of July 
31, 2012.

Sixth Amendment to the Third Amended and 
Restated Receivables Purchase Agreement, dated as 
of October 9, 2012.

Seventh Amendment to the Third Amended and 
Restated Receivables Purchase Agreement, dated 
December 11, 2012.

Amended and Restated Employment Agreement, 
dated as of September 1, 2009, between WESCO 
International Inc. and John J. Engel.

Amended and Restated Employment Agreement, 
dated as of September 1, 2009, between WESCO 
International Inc. and Stephen A. Van Oss.

Incorporated by reference to Exhibit 10.2 to WESCO's 
Current Report on Form 8-K dated August 24, 2011

Filed herewith

Filed herewith

Incorporated by reference to Exhibit 10.1 to WESCO’s 
Current Report on Form 8-K, dated December 17, 
2012

Incorporated by reference to Exhibit 10.2 to WESCO’s 
Quarterly Report on Form 10-Q for the quarter ended 
September 30, 2009

Incorporated by reference to Exhibit 10.3 to WESCO’s 
Quarterly Report on Form 10-Q for the quarter ended 
September 30, 2009

Term Sheet, dated January 15, 2010, memorializing 
terms of employment of Diane Lazzaris by WESCO 
International, Inc.

Incorporated by reference to Exhibit 10.28 to WESCO’s 
Annual Report on Form 10-K for the year ended 
December 31, 2009

Term Sheet, dated June 18, 2010, memorializing 
terms of employment of Kimberly Windrow by WESCO 
International, Inc.

Incorporated by reference to Exhibit 10.1 to WESCO’s 
Quarterly Report on Form 10-Q for the quarter ended 
September 30, 2010

Notice of Performance Share Award under the 
WESCO International, Inc. 1999 Long-Term Incentive 
Plan

Incorporated by reference to Exhibit 10.1 to WESCO’s 
Quarterly Report on Form 10-Q for the quarter ended 
March 31, 2012

Consulting and Separation Agreement, dated 
February 23, 2012, between WESCO and Richard P. 
Heyse

Incorporated by reference to Exhibit 10.2 to WESCO’s 
Quarterly Report on Form 10-Q for the quarter ended 
March 31, 2012

WESCO International, Inc.10.32

10.33

21.1

23.1

31.1

31.2

32.1

32.2

101

Term Sheet, dated May 24, 2012, memorializing 
terms of employment of Kenneth Parks by WESCO 
International, Inc.

Term Loan agreement, dated as of December 12, 
2012 among WESCO Distribution, Inc., WDCC 
Enterprises Inc., WESCO International, Inc., Credit 
Suisse AG, Cayman Island Branch, as Administrative 
Agent and Collateral Agent and the other Lenders and 
Agents party thereto

Subsidiaries of WESCO.

Consent of PricewaterhouseCoopers LLP.

Certification of Chief Executive Officer pursuant to 
Rule 13a-14(a) promulgated under the Exchange Act.

Certification of Chief Financial Officer pursuant to 
Rule 13a-14(a) promulgated under the Exchange Act.

Certification of Chief Executive Officer pursuant to 
Section 906 of the Sarbanes-Oxley Act of 2002.

Certification of Chief Financial Officer pursuant to 
Section 906 of the Sarbanes-Oxley Act of 2002.

Interactive Data File*

85

Incorporated by reference to Exhibit 10.1 to WESCO's 
Quarterly Report on Form 10-Q for the quarter ended 
June 30, 2012

Incorporated by reference to Exhibit 10.1 to WESCO's 
Current Report on Form 8-K, dated December 17, 
2012

Filed herewith

Filed herewith

Filed herewith

Filed herewith

Filed herewith

Filed herewith

Filed herewith

* In with accordance with Rule 406T of Regulation S-T promulgated by the Securities and Exchange Commission, Exhibit 101 is deemed not filed or part of a 
registration statement or prospectus for purposes of Sections 11 or 12 of the Securities Act of 1933, is deemed not filed for purposes of Section 18 of the 
Securities Exchange Act of 1934, and otherwise is not subject to liability under these sections.

The registrant hereby agrees to furnish supplementally to the Commission, upon request, a copy of any omitted schedule 
to any of the agreements contained herein.

Copies of exhibits may be retrieved electronically at the Securities and Exchange Commission’s home page at  
www.sec.gov. Exhibits will also be furnished without charge by writing to Kenneth S. Parks, Vice President and Chief 
Financial Officer, 225 West Station Square Drive, Suite 700, Pittsburgh, Pennsylvania 15219. Requests may also be 
directed to (412) 454-2200.

2012 Annual Report86

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly 
caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

/s/ JOHN J. ENGEL  

WESCO INTERNATIONAL, INC.
By: 
Name:   John J. Engel 
Title:     Chairman, President and Chief Executive Officer 
Date:    February 28, 2013

/s/ KENNETH S. PARKS 

WESCO INTERNATIONAL, INC.
By:  
Name:   Kenneth S. Parks 
Title:     Vice President and Chief Financial Officer  
Date:    February 28, 2013

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following 
persons on behalf of the registrant and in the capacities and on the dates indicated.

Signature 

Title 

/s/ JOHN J. ENGEL  
John J. Engel 

Chairman, President and Chief Executive Officer  
(Principal Executive Officer)

/s/ KENNETH S. PARKS 
Kenneth S. Parks 

Vice President and Chief Financial Officer  
(Principal Financial and Accounting Officer)

/s/ SANDRA BEACH LIN 
Sandra Beach Lin

/s/ GEORGE L. MILES, JR. 
George L. Miles, Jr.

/s/ JOHN K. MORGAN 
John K. Morgan

/s/ STEPHEN A. RAYMUND 
Steven A. Raymund

/s/ JAMES L. SINGLETON 
James L. Singleton

/s/ ROBERT J. TARR, JR. 
Robert J. Tarr, Jr.

/s/ LYNN M. UTTER 
Lynn M. Utter

/s/ STEPHEN A. VAN OSS 
Stephen A. Van Oss

/s/ WILLIAM J. VARESCHI 
William J. Vareschi

Director 

Director 

Director 

Director 

Director 

Director 

Director 

Director 

Director 

Date

February 28, 2013 

February 28, 2013 

February 28, 2013 

February 28, 2013 

February 28, 2013 

February 28, 2013 

February 28, 2013 

February 28, 2013 

February 28, 2013 

February 28, 2013 

February 28, 2013 

Schedule II—Valuation and Qualifying Accounts

Balance at 
Beginning of Period  

Charged to 
Expense 

Charged to 
Other Accounts 

Deductions(1) 

Balance at 
End of Period

(In thousands)

Allowance for doubtful accounts
  Year ended December 31, 2012 
  Year ended December 31, 2011 
  Year ended December 31, 2010 

$ 

21,590  $ 
18,562 
20,060 

1,119  $ 
6,583 
6,439 

—  $ 
— 
— 

(5,467)  $ 
(3,555) 
(7,937) 

17,242
21,590
18,562

(1)  Includes a reduction in the allowance for doubtful accounts due to write-off of accounts receivable.

WESCO International, Inc. 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
87

Exhibit 21.1 Subsidiaries of WESCO International, Inc.

1502218 Alberta, Ltd., an Alberta corporation

WEAS Company, Srl, a Mexico private limited company

Bruckner Polska sp z.o.o., a Poland limited company

Bruckner Supply Company, Inc., a Delaware corporation

Bruckner Supply Singapore, a Singapore sole proprietor

Calvert-Wire & Cable Corporation, a Delaware corporation

Carlton-Bates Company, an Arkansas corporation

Carlton-Bates Company de Mexico S.A. de C.V.,  
a Mexico variable capital company

Carlton-Bates Company of Texas, G.P.,  
a Texas corporation

CBC LP Holdings, LLC, a Delaware limited liability company

CDW Holdco, LLC, a Delaware limited liability company

Communications Supply Corporation, a Connecticut corporation

Liberty-Wire & Cable, Inc., a Delaware corporation

M&M Power Products, LP, a California limited partnership

Stone Eagle Electrical Supply GP, Inc., an Alberta corporation

Stone Eagle Electrical Supply LP, an Alberta limited partnership

TVC Canada Corp., a Nova Scotia unlimited liability company

WESCO (Suzhou) Trading Co. Ltd.,  
a China limited liability company

WDI Angola, LDA, an Angola company

WESCO Australia Pty Ltd, an Australian company

WESCO Distribution Canada Co.,  
a Nova Scotia unlimited liability company

WESCO Distribution Canada GP, Inc.,  
a Nova Scotia limited liability company

WESCO Distribution Canada LP,  
an Ontario limited partnership

WESCO Distribution de Mexico, Srl,  
a Mexico private limited company

WESCO Distribution HK Limited,  
a Hong Kong limited private company

WESCO Distribution II ULC,  
a Nova Scotia unlimited liability company

WESCO Distribution III ULC, a 
Nova Scotia unlimited liability company

WESCO Distribution International, Ltd.,  
a United Kingdom limited company

TVC Communications, LLC, a Delaware limited liability company

WESCO Distribution, Inc., a Delaware Corporation

TVC Espana Distribucion y Venta De Equipos, S.L.,  
a Spain limited liability company

TVC International Holding, LLC,  
a Delaware limited liability company

TVC Mexico Distribution S. de R.L. de C.V.,  
a Mexico limited liability company

TVC Mexico Services S. de R.L. de C.V.,  
a Mexico limited liability company

TVC UK Holdings, Limited, a United Kingdom limited company

WDC Holding, Inc., a Delaware corporation

WDCH, LP, a Pennsylvania limited partnership

WDINESCO B.V., a Netherlands company

WDINESCO Cooperatief U.A., a Netherlands company

WDINESCO CV, a Netherlands limited partnership

WDINESCO II B.V.,  
a Netherlands private company with limited liability

WDINESCO II CV, a Netherlands limited partnership

Wesco do Brasil Equipamentos Eletrônicos Ltda,  
a Brazil limited Liability company 

WESCO Equity Corporation, a Delaware corporation

WESCO Finance Corporation, a Delaware corporation

WESCO International Supply Co. Singapore Pte Ltd.,  
a Singapore limited private company

WESCO Nevada, Ltd, a Nevada corporation

WESCO Nigeria Ltd., a Nigeria corporation

WESCO Nigeria, Inc., a Delaware corporation

WESCO Real Estate I, LLC, a Delaware limited liability company

WESCO Real Estate II, LLC, a Delaware limited liability company

WESCO Real Estate III, LLC, a Delaware limited liability company

WESCO Real Estate IV, LLC, a Delaware limited liability company

WESCO Receivables Corporation, a Delaware corporation

WESCO Sourcing and Procurement Services Pte Ltd.,  
a Singapore limited private company

2012 Annual Report88

Exhibit 23.1. Consent of Independent Registered Public Accounting Firm

We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (No’s. 333-81857, 
333-81847, 333-81845, 333-81841, 333-91187 and 333-172531) of WESCO International, Inc. of our report dated 
February 27, 2013 relating to the financial statements, financial statement schedule and the effectiveness of internal 
control over financial reporting, which appears in this Form 10-K.

/s/ PricewaterhouseCoopers LLP 
Pittsburgh, Pennsylvania 
February 28, 2013

WESCO International, Inc.89

Exhibit 31.1. Certification 

I, John J. Engel, certify that: 

1. I have reviewed this annual report on Form 10-K of WESCO International, Inc.; 

2.   Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material 
fact necessary to make the statements made, in light of the circumstances under which such statements were made, 
not misleading with respect to the period covered by this report; 

3.   Based on my knowledge, the financial statements, and other financial information included in this report, fairly present 
in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the 
periods presented in this report; 

4.   The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and 
procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting 
(as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have: 

(a)  Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be 
designed under our supervision, to ensure that material information relating to the registrant, including its 
consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in 
which this report is being prepared; 

(b)  Designed such internal control over financial reporting, or caused such internal control over financial reporting to be 
designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and 
the preparation of financial statements for external purposes in accordance with generally accepted accounting 
principles; 

(c)  Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our 
conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered 
by this report based on such evaluation; and 

(d)  Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during 
the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that 
has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial 
reporting; and 

5.   The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control 
over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or 
persons performing the equivalent functions): 

(a)  All significant deficiencies and material weaknesses in the design or operation of internal control over financial 

reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and 
report financial information; and 

(b)  Any fraud, whether or not material, that involves management or other employees who have a significant role in the 

registrant’s internal control over financial reporting. 

Date:  February 28, 2013

By: 

 /s/ John J. Engel  
John J. Engel  
Chairman, President and Chief Executive Officer 

2012 Annual Report 
 
 
 
 
 
90

Exhibit 31.2. Certification 

I, Kenneth S. Parks, certify that: 

1.   I have reviewed this annual report on Form 10-K of WESCO International, Inc.; 

2.   Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material 
fact necessary to make the statements made, in light of the circumstances under which such statements were made, 
not misleading with respect to the period covered by this report; 

3.   Based on my knowledge, the financial statements, and other financial information included in this report, fairly present 
in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the 
periods presented in this report; 

4.   The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and 
procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting 
(as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have: 

(a)  Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be 
designed under our supervision, to ensure that material information relating to the registrant, including its 
consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in 
which this report is being prepared; 

(b)  Designed such internal control over financial reporting, or caused such internal control over financial reporting to be 
designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and 
the preparation of financial statements for external purposes in accordance with generally accepted accounting 
principles; 

(c)  Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our 
conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered 
by this report based on such evaluation; and 

(d)  Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during 
the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that 
has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial 
reporting; and 

5.   The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control 
over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or 
persons performing the equivalent functions): 

(a)  All significant deficiencies and material weaknesses in the design or operation of internal control over financial 

reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and 
report financial information; and 

(b)  Any fraud, whether or not material, that involves management or other employees who have a significant role in the 

registrant’s internal control over financial reporting. 

Date:  February 28, 2013

By: 

/s/ Kenneth S. Parks 

  Kenneth S. Parks 
  Vice President and Chief Financial Officer 

WESCO International, Inc. 
 
 
 
 
 
 
 
91

Exhibit 32.1. Certification Pursuant to 18 U.S.C. Section 1350 as Adopted 
Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 

In connection with the Annual Report of WESCO International, Inc. (the “Company”) on Form 10-K for the period ended 
December 31, 2012 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the 
undersigned, in the capacity and on the date indicated below, hereby certifies pursuant to 18 U.S.C. Section 1350, as 
adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to his knowledge: 

1.  The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.   The information contained in the Report fairly presents, in all material respects, the financial condition and results of 

operation of the Company. 

Date:  February 28, 2013

By: 

/s/ John J. Engel   
John J. Engel  

  Chairman, President and Chief Executive Officer 

Exhibit 32.2. Certification Pursuant to 18 U.S.C. Section 1350 as Adopted 
Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Annual Report of WESCO International, Inc. (the “Company”) on Form 10-K for the period ended 
December 31, 2012 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the 
undersigned, in the capacity and on the date indicated below, hereby certifies pursuant to 18 U.S.C. Section 1350, as 
adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to his knowledge: 

1.  The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.   The information contained in the Report fairly presents, in all material respects, the financial condition and results of 

operation of the Company.  

Date:  February 28, 2013

By: 

/s/ Kenneth S. Parks 

  Kenneth S. Parks 
  Vice President and Chief Financial Officer 

2012 Annual Report 
 
 
 
 
92

Non-GAAP Reconciliations

2008 

2009 

2010 

2011 

2012

(Dollars in millions except for Diluted EPS)

Adjusted Income from operations (Adjusted EBIT): 
Income from operations (EBIT) 
Add: ArcelorMittal litigation charge 
Adjusted income from operations (Adjusted EBIT) 

Adjusted net income attributable to  
  WESCO International, Inc. :
Net income attributable to WESCO International, Inc. 
Add: ArcelorMittal litigation charge, net of tax 
Adjusted net income attributable  
to WESCO International, Inc. 

Adjusted Diluted EPS :
Diluted share count 
Adjusted Diluted EPS 

Adjusted stockholders’ equity:
Stockholders’ equity 
Add: ArcelorMittal litigation charge, net of tax 
Adjusted stockholders’ equity 

346 
–  
346 

204  
– 

204 

43.3 
4.71 

755 
– 
755 

180 
– 
180 

105  
– 

105 

42.7 
2.46 

996 
– 
996 

211 
–  
211 

115  
– 

115 

46.1 
2.50 

1,149 
– 
1,149 

333 
– 
333 

196 
– 

196 

49.6 
3.96 

1,346 
– 
1,346 

333
36
369

202
22

224

51.1
4.38

1,554
22
1,576

WESCO International, Inc. 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
93

2008 

2009 

2010 

2011 

2012

Non-GAAP Reconciliations

(Dollars in millions)

Free Cash Flow :
Cash provided by operations 
Less: capital expenditures 
Free cash flow   

Adjusted net income attributable  
to WESCO International, Inc. 

 280  
 (35) 
245  

 292  
 (13) 
 279  

 204  

 105  

127  
 (15) 
 112  

115  

97% 

211  
 4  
 215 
 58  

 168  
 (33) 
 134  

 196  

68% 

 333  
–-  
 333  
 99  

Free cash flow as a % of adjusted net income   

120% 

265% 

ROIC: 
346  
Adjusted income from operations 
 9  
Equity income   
Adjusted income from operations plus equity income  355  
Tax effect (year end effective tax rate) 
106  
Tax effected adjusted income from operations   
  plus equity income 

249  

180  
 5  
185  
 43 

 142  

 158  

 234  

Par debt   
December 31 of the prior year 
March 31 of the current year 
June 30 of the current year 
September 30 of the current year 
December 31 of the current year 
Average par debt   

Stockholders’ equity 
December 31 of the prior year 
Less: debt discount 
Stockholders’ equity, net of debt discount 

March 31 of the current year 
Less: debt discount 
Stockholders’ equity, net of debt discount 

June 30 of the current year 
Less: debt discount 
Stockholders’ equity, net of debt discount 

September 30 of the current year 
Less: debt discount 
Stockholders’ equity, net of debt discount 

December 31 of the current year (adjusted) 
Less: debt discount 
Stockholders’ equity, net of debt discount 

Average stockholders’ equity, net of debt discount 

 1,316  
 1,237  
1,245  
 1,178  
 1,141  
 1,223  

 1,141 
1,043  
 967  
889  
 875  
 983  

 609  
 –  
 609  

 629  
 –  
629  

 669  
 –  
 669  

 717  
 –  
717  

755  
 41  
 715  

668  

 755 
 41  
 715  

 776  
37  
739  

822  
 33  
 789  

 961  
 184 
 778  

 996  
 183  
814 

 767 

 875  
817  
760  
759  
908  
 824  

 996  
 183  
814  

 1,027  
 181  
846  

1,051  
180  
 871  

 1,095  
 179  
916  

1,149  
 178  
 970  

 908  
 886  
 936  
 907  
 825  
893  

 1,149 
 178 
 970  

 1,199  
178  
 1,021  

 1,253 
 177  
 1,076  

 1,284  
 177  
 1,107  

 1,346  
 176  
 1,170 

 883  

 1,069  

Average par debt and stockholders’ equity 
ROIC   

1,891  
13.2% 

1,749 
8.1% 

 1,707  
9.2% 

 1,961  
11.9% 

288 
(23)
 265 

224 

118%

369 
 – 
369 
 105 

264 

 825 
 794 
 759 
 896 
1,919 
 1,039 

 1,346 
 176 
 1,170 

1,411 
 175 
 1,236 

 1,469 
 175 
 1,294 

 1,545 
 175 
 1,370 

 1,576 
 184 
 1,392 

 1,292 

 2,331 
11.3%

2012 Annual Report 
 
 
 
 
 
 
 
 
  
 
  
 
 
 
 
  
 
  
 
 
 
 
 
 
 
  
 
  
 
 
 
 
  
  
  
 
  
 
 
 
 
 
 
  
 
  
 
  
 
  
 
 
 
 
 
  
 
 
 
  
 
 
 
 
 
  
 
 
 
 
  
 
 
  
 
  
 
 
 
  
  
 
 
 
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
 
 
 
  
 
 
  
 
 
 
 
 
 
  
 
  
 
  
 
  
  
  
 
 
 
  
  
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
  
 
 
  
 
  
 
 
 
 
 
 
 
 
  
  
 
  
 
  
 
 
 
  
  
  
 
 
 
 
 
 
 
 
 
 
 
94

Corporate Headquarters

WESCO International, Inc. 
Suite 700 
225 West Station Square Drive 
Pittsburgh, PA 15219-1122 
Phone: 412-454-2200 
www.wesco.com

Investor Relations

For questions regarding WESCO, contact Daniel A. Brailer, 
Vice President, Investor Relations and Corporate Affairs,  
at investorrelations@wesco.com. A copy of the Company’s 
Annual Report on Form 10-K or other financial information 
may be requested through our website (www.wesco.com)  
or by contacting Investor Relations.

Common Stock

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

Annual Meeting

The Annual Meeting of stockholders will be held on  
May 30, 2013, at 2:00 p.m., E.D.T., at:

Sheraton Station Square 
300 West Station Square Drive 
Pittsburgh, PA  15219

Transfer Agent and Registrar

Computershare 
P.O. Box 43006 
Providence, RI 02940-3006 
Toll free:  877-264-3927 
TDD for Hearing Impaired:  800-231-5469 
Foreign Shareholders:  201-680-6578 
TDD Foreign Shareholders:  201-680-6610 

Website address: 
www.computershare.com/investor

Independent Registered Public  
Accounting Firm

PricewaterhouseCoopers LLP 
Pittsburgh, PA

Certifications to the NYSE and the SEC

On June 11, 2012, the Company submitted its CEO 
Certification to the NYSE under NYSE Rule 303A.12(a).  
Also, any CEO/CFO certifications required to be filed  
with the SEC, including the Section 302 certifications,  
are filed by the Company as exhibits to its Annual Report  
on Form 10-K.

An online version of the Annual Report is available  
at www.wesco.com

Performance Peer Group

Airgas, Inc.
Anixter International, Inc.
Applied Industrial Technologies
Arrow Electronics, Inc.
Avnet, Inc.
Beacon Roofing Supply, Inc.
Danaher Corporation

Eaton Corporation Plc
Emerson Electric Co.
Fastenal Company
Genuine Parts Company
Houston Wire & Cable Company
Hubbell Incorporated
Ingram Micro Inc.

MSC Industrial Direct Co., Inc.
Pool Corporation
Rockwell Automation Inc.
Tech Data Corporation
United Stationers Inc.
W.W. Grainger, Inc.
Watsco, Inc.

WESCO International, Inc. 
CORPORATE GOVERNANCE

BOARD OF DIRECTORS

EXECUTIVE OFFICERS 

(left to right)

Stephen A. Van Oss 
Senior Vice President and  
Chief Operating Officer  
WESCO International, Inc.

John K. Morgan 
Chairman, President and  
Chief Executive Officer 
Zep, Inc.

William J. Vareschi 
Former Chief Executive 
Officer 
Central Parking Corporation

Sandra Beach Lin 
Former, Chief Executive 
Officer 
Calisolar, Inc. 

George L. Miles, Jr. 
Chairman Emeritus 
Chester Engineers, Inc.

John J. Engel 
Chairman, President and  
Chief Executive Officer 
WESCO International, Inc.

Robert J. Tarr, Jr. 
Professional Director and  
Private Investor

James L. Singleton 
Vice Chairman 
Cürex Group Holdings, LLC

Lynn M. Utter 
President and Chief 
Operating Officer 
Knoll Office

Steven A. Raymund 
Chairman 
Tech Data Corporation 

Class I:  Term expires 2015 
John J. Engel 
Steven A. Raymund 
Lynn M. Utter 
William J. Vareschi

Class II: Term expires 2013 
Sandra Beach Lin 
Robert J. Tarr, Jr. 
Stephen A. Van Oss

Class III: Term expires 2014 
George L. Miles, Jr. 
John K. Morgan 
James L. Singleton

(as of April 1, 2013)

John J. Engel 
Chairman, President and  
Chief Executive Officer

Stephen A. Van Oss 
Senior Vice President and  
Chief Operating Officer 

Kenneth S. Parks 
Vice President and  
Chief Financial Officer

Daniel A. Brailer 
Vice President,  
Investor Relations and 
Corporate Affairs

Allan A. Duganier 
Director,  
Internal Audit

Timothy A. Hibbard 
Vice President and  
Corporate Controller

Diane E. Lazzaris 
Vice President,  
Legal Affairs

Kimberly G. Windrow 
Vice President,  
Human Resources 

WESCO International, Inc.

Suite 700 
225 West Station Square Drive 
Pittsburgh, Pennsylvania 15219-1122 
Phone: 412-454-2200 
www.wesco.com

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