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W W Grainger2 0 2 0 A N N U A L R EP O R T W E L C O M E T O O U R N E W E R A Utilizing our broad portfolio of products and services, global reach, and technical expertise, WESCO creates solutions for customers that reduce operations and supply chain costs, increase energy efficiency, eliminate waste, accelerate WESCO’S ACQUISITION OF ANIXTER In June 2020, WESCO completed the transformational acquisition of Anixter International, doubling the size of the company, and shifting the combined business into higher- growth and higher-margin markets. project schedules, and make it geography easier to do business overall. With a dedicated “extra effort” team of 18,000 associates, we have cultivated long-term relationships with customers who regard WESCO as a critical supply chain partner and with suppliers who depend on WESCO as one of their largest customers. With the recent acquisition of Anixter International and favorable secular trends, the company has extensive opportunities to grow, become more profitable, and create more value than ever before. GLOBAL REACH WESCO provides an in-country and regional support structure that meets customers’ needs for rapid deployment, scalability, global sourcing, multi-currency transactions, and local inventory in the Americas, EMEA, and Asia‑Pacific. 2020 NET SALES United States Canada 74% 15% Other International 11% and sales offices with operations in more than 800 branches, warehouses 50 countries around the world. strategic business units COMPLEMENTARY INDUSTRIES ACCELERATE GROWTH ELECTRICAL AND ELECTRONIC SOLUTIONS (EES) APPLICATION ANIXTER Construction Industrial/MRO $6.4 billion in pro forma 2020 sales COMMUNICATIONS AND SECURITY SOLUTIONS (CSS) $5.3 billion in pro forma 2020 sales ANIXTER 2020 PRO FORMA1 SALES UTILITY AND BROADBAND SOLUTIONS (UBS) WESCO OEM/Commercial, Institution & Government APPLICATION WESCO Other Security Solutions APPLICATION Network Infrastructure EES CSS UBS 40% 33% 27% ANIXTER Broadband Utility $4.3 billion in pro forma 2020 sales Integrated Supply WESCO 1 Pro forma sales reflect the twelve months ended December 31, 2020 as though WESCO and Anixter had been combined for the entire period. by the numbers FINANCIAL HIGHLIGHTS (Dollars in millions except per share data and percentages) Net sales Adjusted EBITDA1 2 Adjusted net income attributable to common stockholders2 Adjusted diluted EPS2 Diluted share count2 Free cash flow2 Free cash flow as a % of adjusted net income2 1 Adjusted earnings before interest, taxes, depreciation, and amortization. 2 Non-GAAP financial measures are reconciled on page 104. 2016 $7,336 2017 $7,679 2018 $8,177 2019 2020 $8,359 $12,326 410 184 3.80 48.3 282 154% 398 190 3.93 48.4 128 67% 432 227 4.82 47.2 261 431 226 5.20 43.5 180 660 204 4.37 46.6 586 116% 81% 251% CORPORATE PROFILE WESCO International, Inc. (NYSE: WCC), a publicly traded FORTUNE 500® company headquartered in Pittsburgh, Pennsylvania, is a leading provider of business-to-business distribution, logistics services and supply chain management solutions. Pro forma 2020 annual sales were over $16 billion, including full year sales for Anixter International which WESCO acquired in June 2020. WESCO offers a best‑in‑class product and services portfolio of Electrical and Electronic Solutions, Communications and Security Solutions, and Utility and Broadband Solutions. The company employs approximately 18,000 people, maintains relationships with approximately 30,000 suppliers, and serves more than 125,000 customers worldwide. With nearly 1.5 million products, end-to-end supply chain services, and leading digital capabilities, WESCO provides innovative solutions to meet customer needs across commercial and industrial businesses, contractors, government agencies, institutions, telecommunications providers, and utilities. WESCO operates 800 branches, warehouses, and sales offices in over 50 countries, providing a local presence for customers and a global network to serve multi-location businesses and multi-national corporations. 2 WESCO International, Inc. VALUE CREATION THROUGH INDUSTRY CONSOLIDATION Scale is critical in distribution. Combining two industry powerhouses creates substantial value for our customers, supplier partners, investors, and employees, as well as the communities in which we operate. Through our aggressive integration efforts, we are accessing increased economies of scale, attracting and developing top talent, strengthening relationships with our preferred supplier partners, sharing complementary resources and capabilities, and providing our expanded portfolio of products, services and solutions to our global customers. We have mix-shifted our business into higher-growth end markets that provide very attractive secular growth into the future. Our industry leadership creates the opportunity to sustain growth over the long term and deliver superior returns. WESCO’s capabilities in industrial, construction, and utility matched with Anixter’s expertise in communications, security, and wire and cable create an industry-leading lineup for our customers. This business combination is more complementary than we expected, which speaks to even greater opportunities. The combined portfolio creates an efficient single‑source, or one‑stop‑shop, for all our customers’ needs. This translates into higher growth as we execute on our significant cross‑selling opportunities that enables us to offer more solutions to more customers in more locations around the world. Before the acquisition of Anixter was completed last June, we began planning for the integration of these two leading B2B distribution companies. In addition to doubling our size, the transaction provides substantial cost and revenue synergies, expanded margins, improved working capital turns, and increased cash flow generation. From standing up a world‑ class Integration Management Office to rapidly closing the acquisition in a little more than five months, we’ve moved with speed and agility. We quickly selected and recruited our new senior management team and created our three new business segments — CSS (Communications and Security Solutions), EES (Electrical and Electronic Solutions), and UBS (Utility and Broadband Solutions). In the first six months of our 36-month integration plan, we’ve already increased our targeted cost synergy savings from $200 million to $250 million. And, we have launched cross-selling and gross-margin improvement programs that will be key drivers of our long- term, sustainable earnings power. I’m pleased to say that execution of our integration plan is off to an excellent start, and that we are exceeding our initial expectations. TO OUR SHAREHOLDERS, EMPLOYEES, AND BUSINESS PARTNERS Last year was one of the most volatile and challenging years in history as we faced a worldwide pandemic and major economic dislocations, witnessed injustice and unrest, experienced a series of natural disasters, and managed significant shifts in the way we work, and in the way we live. Each of us experienced those challenges in a very personal way. Despite that unprecedented backdrop, we strengthened our company. I would like to express my deepest thanks and appreciation to WESCO’s 18,000 employees around the world for their unwavering dedication, determination and resilience. Our team is the best in the industry, and I am inspired by their exceptional service to our customers, supplier partners, and to each other every day. 2020 will be remembered as WESCO’s watershed year. We completed the transformational acquisition of Anixter International Inc., doubling our size and forever changing our trajectory. The power of bringing WESCO and Anixter together is extraordinary. We are now the industry leader in electrical, communications, and utility distribution and supply chain solutions. Our differentiated scale and global capabilities offer unrivaled value for our customers and unique partnership value for our suppliers. The diversity of our expanded product and services portfolio, coupled with substantial integration synergies, supports sustainable earnings growth through the cycle. Our resilient free cash flow business model, as well as our proven ability to quickly deleverage, gives us the flexibility to continue to invest in our business. Our future is bright as we capitalize on our secular growth opportunities; unlock the power of our big data with advanced analytics, machine learning and artificial intelligence applications; and digitally transform our company and our industry. 2020 Annual Report 3 “Scale is critical in distribution. Combining two industry powerhouses creates substantial value for our customers, supplier partners, investors, and employees, as well as the communities in which we operate.” NEW MISSION, VISION AND VALUES CHART OUR COURSE Talent and culture ultimately determine our long-term success. We believe that we can do great things when we come together as one team with a shared mission, a clear vision and strategy, and values that bring out the best in us individually and collectively. The transformational combination of WESCO and Anixter provides us with the unique opportunity to draw from the best of each company in building our new “best of both” global enterprise. At WESCO, our mission is clear, we build, connect, power and protect the world. That is our purpose. It’s why we come to work, and it’s at the core of what our customers, suppliers and employees care deeply about. Our 18,000 employees live that mission every day, as they service more than 125,000 customers, in over 50 countries around the world, from 800 branches, warehouses and sales offices. Just as our mission defines what we do, our vision guides us to where we’re going. Our vision is to be the best tech- enabled supply chain solutions provider in the world. Our journey toward that vision constantly challenges the status quo as we seek to set a world-class standard for our products, services and supply chain solutions to create superior value for our customers. Our mission and vision are guided by a set of core values: • People first — as our talent is our greatest asset. • One team — that values inclusion and diversity, where the best idea wins. • Winning — with customers and suppliers, where we are committed to exceeding expectations. • Being the best — and always acting with integrity while delivering superior results, and • Innovating — with unrivaled focus and speed, as we digitally transform our business. Leading with these core values is a business imperative for us. They define our actions, and our actions define and differentiate us. Compelling values attract the best employees, and they sustain our customer and supplier relationships. Overall, they guide our efforts as we lead our industry and as we work on realizing our vision of becoming the best tech- enabled supply-chain solutions provider in the world. We are proud to have been recognized by Fortune as one of the World’s Most Admired Companies in our industry, and by Forbes as one of America’s Best Employers for Women in 2020. We are also very pleased to be included in Bloomberg’s Gender Equality Index again this year. We’ve set a high bar for our new global enterprise, and our journey has only just begun. SECULAR GROWTH TRENDS AND DIGITAL TRANSFORMATION DRIVE BREAKTHROUGH PERFORMANCE The B2B wholesale distribution industry is rapidly evolving, driven by all things digital. Industries, like products and like companies, go through the classic s-curve cycle. Our B2B distribution value chain is entering the steep portion of this s-curve. As a result, fast-paced changes in technology, expanding digital tools and applications, new requirements and regulations in existing markets, and new market opportunities present outstanding future growth opportunities for our transformational combination of WESCO and Anixter. As we further integrate the two businesses and benefit from a best‑of‑the‑best organizational and cultural design, we are accelerating our digital transformation and taking a first‑mover advantage in employing digital technologies to fundamentally change how we operate, and how we deliver value to our customers. Technology trends play an important role in our growth strategy. As products, systems, and IoT applications become more complex, supporting customers requires technical expertise and sales consultancy, which are key competitive differentiators for WESCO. By optimizing our customer and supplier data into actionable insights, we create value and transform our solution offerings. And, by integrating digital technology into all areas of our business, we change the way we operate by using agile development, design thinking, and human-centered design. Improved collaboration and resource management across our tech ecosystem, unlocking the power of our big data, and improving the experience at both ends of our value chain with customers and suppliers, drive multidimensional growth in support of our WESCO vision. 4 WESCO International, Inc. With our new mission/vision/values and the integration of Anixter providing scale and scope benefits of 1+1=3, we are exceptionally well-positioned to capitalize on the secular growth opportunities in our higher growth end markets. Our three business segments are focused on delivering these above-market results: CSS is using our global reach and technical expertise to capitalize on the strong demand for increased bandwidth due to higher voice, data, video and mobile usage, as well as the greater connectivity needs for remote work, home and school applications. These demand drivers are generating strong secular growth in data centers, mobility, secured networks, remote connectivity and audio/video applications. EES is targeting growth driven by the increasing electrification of infrastructure and the industrial, transportation, and energy sectors. Importantly, we are also working with our customers and our suppliers to reduce greenhouse gas emissions and improve sustainability of the overall supply chain. UBS, as the leader in serving investor-owned utilities, public power, and utility contractors, is benefitting from increased investment in utility grid hardening and reliability, as well as in renewables and green energy investments. For Broadband, there is a heightened sense of urgency to provide reliable, high-speed internet to rural areas in the U.S. and Canada. This presents an excellent opportunity for WESCO to participate in the 5G buildout, as government investment and new technologies are being put in place. In addition, an overall trend of supply chain consolidation and outsourcing, including relocation back to North America, is underway. Our customers want to reduce supply chain risk and do business with a smaller number of larger suppliers, and this bodes well for WESCO. To take advantage of all these robust secular growth trends, each of our three business segments is leveraging our combined and expanded portfolio of products, services and solutions. STRONG CASH FLOW GENERATION DELIVERS UPSIDE POTENTIAL The foundation of a well-run distribution company is strong cash flow generation across all phases of the economic cycle. Earnings growth, along with effective working capital management and moderate capital investment needs, creates a cash flow business model that has proven resilient for us since going public 22 years ago. Last year, as the global pandemic adversely impacted demand, we delivered free cash flow of nearly $600 million by quickly and effectively managing our discretionary spending, working capital and capital investments. This total represents a full year of WESCO and just six months of Anixter cash flow, and it enabled us to reduce our financial leverage by nearly a half‑a‑turn since the acquisition closed in June 2020. Our top priority is to continue to reduce our debt in the short term and bring our leverage back within our target range. Once we have paid down the acquisition debt, our strong cash flow provides increased optionality to invest in further industry consolidation and above-market shareholder returns. A NEW ERA As I look ahead, I’m confident that WESCO is investing in the right areas, at the right time. We are deepening our competitive advantage and setting the foundation for long- term, profitable growth. At the same time, we are committed to responsible ESG (Environmental, Social, and Governance) operating practices, using our scale and resources to drive a better, more sustainable future for all our stakeholders. By focusing on building our culture of excellence, inclusion, and continuous improvement, we have the capabilities to execute positive change. It’s an exciting and defining moment in our history, and the start of a new era for WESCO. With 2020 behind us, we look to the future with great expectations and great conviction in our capabilities. The transformational combination of WESCO and Anixter has established us as the industry leader. As a combined company, we are bigger, stronger, and better together. We are moving forward from a position of strength, intent on leading not only the digital transformation of our business but also the digital transformation of our industry. This will become our primary competitive advantage and differentiator in the years ahead. We have begun our journey of becoming the best tech-enabled supply chain solutions provider in the world. THANK YOU On behalf of our WESCO Board of Directors, our entire leadership team, and our 18,000 associates around the world, thank you for your investment in WESCO. We remain fully committed to doing all we can to build long-term value creation for you and all those connected to our business. Very best regards, John J. Engel Chairman, President and Chief Executive Officer UNITED STATES SECURITIES AND EXCHANGE COMMISSIONWASHINGTON, D.C. 20549FORM 10-K (Mark One)☑ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the fiscal year ended December 31, 2020 or☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the transition period from to Commission file number 001-14989 WESCO International, Inc. (Exact name of registrant as specified in its charter)Delaware 25-1723342(State or other jurisdiction ofincorporation or organization)(I.R.S. EmployerIdentification No.)225 West Station Square DriveSuite 700 15219Pittsburgh,Pennsylvania(Zip Code)(Address of principal executive offices)(412) 454-2200 (Registrant’s telephone number, including area code) SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:Title of ClassTrading Symbol(s)Name of Exchange on which registeredCommon Stock, par value $.01 per shareWCCNew York Stock ExchangeDepositary Shares, each representing a 1/100th interest in a share of Series A Fixed-Rate Reset Cumulative Perpetual Preferred StockWCC PR ANew York Stock ExchangePreferred Share Purchase RightsN/ANew York Stock ExchangeSECURITIES REGISTERED PURSUANT TO SECTION 12(g) OF THE ACT: NoneIndicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes þ No oIndicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act. Yes o No þIndicate 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 þ No oIndicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such file). Yes þ No oIndicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and "emerging growth company" in Rule 12b-2 of the Exchange Act.Large Accelerated Filer☑Accelerated Filer☐Non-accelerated Filer ☐Smaller reporting company☐Emerging growth company☐If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assertion of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. þIndicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ☐ No þUNITED STATES SECURITIES AND EXCHANGE COMMISSIONWASHINGTON, D.C. 20549FORM 10-K (Mark One)☑ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the fiscal year ended December 31, 2020 or☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the transition period from to Commission file number 001-14989 WESCO International, Inc. (Exact name of registrant as specified in its charter)Delaware 25-1723342(State or other jurisdiction ofincorporation or organization)(I.R.S. EmployerIdentification No.)225 West Station Square DriveSuite 700 15219Pittsburgh,Pennsylvania(Zip Code)(Address of principal executive offices)(412) 454-2200 (Registrant’s telephone number, including area code) SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:Title of ClassTrading Symbol(s)Name of Exchange on which registeredCommon Stock, par value $.01 per shareWCCNew York Stock ExchangeDepositary Shares, each representing a 1/100th interest in a share of Series A Fixed-Rate Reset Cumulative Perpetual Preferred StockWCC PR ANew York Stock ExchangePreferred Share Purchase RightsN/ANew York Stock ExchangeSECURITIES REGISTERED PURSUANT TO SECTION 12(g) OF THE ACT: NoneIndicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes þ No oIndicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act. Yes o No þIndicate 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 þ No oIndicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such file). Yes þ No oIndicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and "emerging growth company" in Rule 12b-2 of the Exchange Act.Large Accelerated Filer☑Accelerated Filer☐Non-accelerated Filer ☐Smaller reporting company☐Emerging growth company☐If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assertion of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. þIndicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ☐ No þThe registrant estimates that the aggregate market value of the voting shares held by non-affiliates of the registrant was approximately $1.7 billion as of June 30, 2020, 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 25, 2021, 50,161,831 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 2021 Annual Meeting of Stockholders. TABLE OF CONTENTSPagePART I Item 1. Business1Item 1A. Risk Factors8Item 1B. Unresolved Staff Comments16Item 2. Properties16Item 3. Legal Proceedings16Item 4. Mine Safety Disclosures16PART II Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities17Item 6. Selected Financial Data18Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations19Item 7A. Quantitative and Qualitative Disclosures About Market Risks43Item 8. Financial Statements and Supplementary Data45Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure92Item 9A. Controls and Procedures92Item 9B. Other Information92PART III Item 10. Directors, Executive Officers and Corporate Governance93Item 11. Executive Compensation93Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters93Item 13. Certain Relationships and Related Transactions, and Director Independence93Item 14. Principal Accountant Fees and Services93PART IV Item 15. Exhibits and Financial Statement Schedule94Item 16. Form 10-K Summary101Signatures102Table of ContentsTABLE OF CONTENTSPagePART I Item 1. Business1Item 1A. Risk Factors8Item 1B. Unresolved Staff Comments16Item 2. Properties16Item 3. Legal Proceedings16Item 4. Mine Safety Disclosures16PART II Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities17Item 6. Selected Financial Data18Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations19Item 7A. Quantitative and Qualitative Disclosures About Market Risks43Item 8. Financial Statements and Supplementary Data45Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure92Item 9A. Controls and Procedures92Item 9B. Other Information92PART III Item 10. Directors, Executive Officers and Corporate Governance93Item 11. Executive Compensation93Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters93Item 13. Certain Relationships and Related Transactions, and Director Independence93Item 14. Principal Accountant Fees and Services93PART IV Item 15. Exhibits and Financial Statement Schedule94Item 16. Form 10-K Summary101Signatures102Table of ContentsTable of Contents Item 1. Business. PART I 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") and its subsidiaries (collectively, “WESCO” or the "Company"), headquartered in Pittsburgh, Pennsylvania, is a leading provider of business-to-business distribution, logistics services and supply chain solutions. On June 22, 2020, WESCO completed its previously announced acquisition of Anixter International Inc., a Delaware corporation (“Anixter”). Pursuant to the terms of the Agreement and Plan of Merger, dated January 10, 2020 (the “Merger Agreement”), by and among Anixter, WESCO and Warrior Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of WESCO (“Merger Sub”), Merger Sub was merged with and into Anixter (the “Merger”), with Anixter surviving the Merger and continuing as a wholly owned subsidiary of WESCO. On June 23, 2020, Anixter merged with and into Anixter Inc., with Anixter Inc. surviving to become a wholly owned subsidiary of WESCO. As a result of the Merger, the Company now employs nearly 18,000 people, maintains relationships with approximately 30,000 suppliers, and serves more than 125,000 customers worldwide. With nearly 1,500,000 products, end-to-end supply chain services, and extensive digital capabilities, WESCO provides innovative solutions to meet current customer needs across commercial and industrial businesses, contractors, government agencies, institutions, telecommunications providers, and utilities. WESCO’s innovative value-added solutions include supply chain management, logistics and transportation, procurement, warehousing and inventory management, as well as kitting and labeling, limited assembly of products and installation enhancement. WESCO has approximately 800 branches, warehouses and sales offices with operations in more than 50 countries, providing a local presence for customers and a global network to serve multi-location businesses and multi- national corporations. With nearly 100 years of excellence, we have the expertise to understand customer needs, the broad product and services portfolio to meet them and a customer-first approach to ensure their long-term success. Business Segments and Industry Overview As a result of the Merger, the Company now has operating segments organized around three strategic business units consisting of Electrical & Electronic Solutions ("EES"), Communications & Security Solutions ("CSS") and Utility and Broadband Solutions ("UBS"). The following is a description of each of the Company's reportable segments and their business activities. Electrical & Electronic Solutions The EES segment, with sales in approximately 40 countries, supplies a broad range of products and supply chain solutions primarily to the construction, industrial and original equipment manufacturer ("OEM") markets. Construction and industrial 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, wastewater treatment facilities, data centers, security installations, offices, and modular and mobile homes. OEM customers require products used in the manufacturing of automotive, industrial, medical, transportation, marine, military and communications equipment. The product portfolio in this global business includes a broad range of electrical equipment and supplies, wire and cable, 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. The EES segment operates in highly fragmented markets that include thousands of small regional and locally based, privately owned competitors as well as several large, multi-national companies. EES includes the “Electrical and Electronic Solutions” business acquired from Anixter and the majority of the legacy WESCO industrial and construction businesses. 1 Table of Contents Communications & Security Solutions The CSS segment is a global leader in the network infrastructure and security markets, with sales to customers across North America, Europe, the Middle East, Latin America and the Asia Pacific region. The network infrastructure market is comprised of data centers, wireless products and other devices that enable network connectivity and communication. The security market includes video surveillance, fire and intrusion detection, access control and other solutions to maintain protection and safety for customers. Both the network infrastructure and security businesses are large, fragmented and diverse markets which include various industry groups such as technology, finance, telecommunications service providers, transportation, education, government, healthcare and retail. CSS sells products directly to end users or through various channels including data communications contractors, security, network, professional audio/visual and systems integrators. CSS has a broad product portfolio that includes copper and fiber optic cable and connectivity, access control, video surveillance, intrusion and fire/life safety, cabinets, power, cable management, wireless, professional audio/video, voice and networking switches and other ancillary products. In addition, CSS offers a variety of value-added supply chain solutions such as inventory management, product packaging and enhancement, and customized supply chain services. CSS includes the “Network and Security Solutions” business acquired from Anixter and the legacy WESCO data communications and safety businesses. Utility & Broadband Solutions The UBS segment, with operations primarily in the U.S. and Canada, supplies electrical transmission and distribution products, power plant maintenance, repair and operations supplies and smart-grid products, and arranges materials management and procurement outsourcing for the power generation, power transmission and electricity distribution industries. The UBS segment also provides value-added safety and technology solutions, which are essential to utility customers. UBS customers include investor-owned utilities, public power companies, and contractors that serve these customers. Investor-owned utility companies provide a combination of electric generation, transmission and/or distribution and are owned by investors or shareholders while public power entities are generally non-profit entities owned by their members or governed by local, state and municipal governments. These two markets serve the vast majority of utility customers in the U.S. and Canada. The UBS segment provides critical components within the core functions of generating, transmitting and distributing electricity. Products include conductors such as wire and cable, transformers, overhead transmission and distribution hardware, switches, protective devices and underground distribution, connectors used in the construction or maintenance and repair of electricity transmission and substation distribution infrastructure and supplies, lighting and conduit used in non-residential and residential construction. The UBS segment combines the “Utility Power Solutions” business acquired from Anixter, the legacy WESCO utility business, the legacy WESCO broadband business and the legacy WESCO integrated supply business. For more information concerning our business segments and domestic and foreign operations, see Note 17, "Business Segments" to the Notes to Consolidated Financial Statements. Business Strategy We partner with suppliers to transform products and services into cost-effective, innovative supply chain solutions. We help our customers build, connect, power and protect their businesses to improve their operations and the world we live in. We generate significant operating cash flow, which is deployed to fund organic growth opportunities, acquire companies that provide new capabilities for growth and manage our capital structure. Additionally, over the past several years, we have returned cash to stockholders through share repurchases. With our broad portfolio of products, extensive services and insights from data analysis, we expect to grow sales at a faster rate than the industry. We utilize LEAN continuous improvement initiatives to deliver commercial and operational excellence, and we extend our LEAN initiatives to customers to improve the efficiency and effectiveness of their operations and supply chains. Our strategies align around the following six planks, each of which is comprised of a series of initiatives. We expect these initiatives to enable us to meet the current and future needs of our customers, grow our business, and drive value for our shareholders. 2 Table of Contents Digital Solutions – customer-segment specific digital solutions to unlock and enable growth Commercial Excellence – build leading commercial capabilities that leverage data, tools and training to manage sales opportunities and customer service Operational Excellence – use scale and technology to unlock efficiencies in the supply chain Technology Platform – technologies to support digitizing the business, managing data and data analytics Organization, Talent and Culture – strengthen the organization and capabilities to lead change Portfolio and Strategic Mergers & Acquisitions – increase capabilities to drive value creation through acquisitions that consolidate the industry, expand to adjacent products and services categories, and invest in digital technologies and applications to advance the enterprise strategy In 2020, a key element of executing our strategy was the acquisition of Anixter. The combination of WESCO and Anixter increased the portfolio of products and services to drive commercial excellence. Additionally, the added scale benefit of the combination provides us with opportunities to drive efficiencies in our supply chain and invest in digital solutions and our technology platform to better partner with our suppliers and customers. Customers We have a large base of more than 125,000 active customers across commercial and industrial businesses, contractors, government agencies, institutions, telecommunications providers, and utilities. Our top ten customers accounted for approximately 12% of our sales in 2020. No one customer accounted for more than 2% of our sales in 2020. Products Our network of branches and distribution centers provide customers with access to nearly 1,500,000 different products. Each branch tailors its inventory to meet the needs of its local customers. We purchase products from a diverse group of approximately 30,000 suppliers. In 2020, our ten largest suppliers accounted for approximately 30% of our purchases. No one supplier accounted for more than 7% of our total purchases. Our supplier relationships are important to us, providing access to a wide range of products, services, technical training, and sales and marketing support. We have approximately 800 commercial agreements with more than 350 preferred suppliers and purchase nearly 60% of our products pursuant to these arrangements. Services As part of our overall offering, we provide customers a comprehensive portfolio of value-added solutions within a wide range of service categories including construction, e-commerce, energy and sustainability, engineering services, production support, safety and security, supply chain optimization, training, and working capital. These solutions are designed to address our customers' business needs and include: • • • • • • • • Supply chain programs to improve productivity, reduce operating costs and increase operational efficiencies; Project deployment services to save time, provide consistency and improve scalability across multifaceted deployments; Installation enhancement services to adapt products and packaging to streamline the process and reduce the total cost of installation; Assessment and analysis services to optimize processes and environments for preparedness, safety and profitability; Engineering services to improve efficiency, improve component life cycles and protect critical equipment; Technology support services to deliver standard-compliant solutions that respond to change, drive innovation and deliver customer value; Training services to enhance product knowledge, teach operational skills and help customers earn and maintain certifications; and eBusiness services to improve visibility, improve efficiency and connect customers with our global distribution network. 3 Table of Contents Competitive Strengths The competitive environment is highly fragmented with hundreds of distributors and manufacturers selling products directly or through multiple distribution channels to end users or other resellers. There is significant competition within each end market and geographic area served that creates pricing pressure and the need for excellent service. Competition is generally based on product line breadth, product availability, service capabilities, geographic proximity and price. We believe that our broad portfolio of products, customer centered approach, global reach with local expertise, comprehensive value-added services and smart, digital solutions provide distinct competitive advantages. Broad Portfolio of Products. We partner with industry-leading suppliers to deliver the most trusted brands in the industry. Our broad product offering encompasses automation, broadband, communications, electrical, electronics, energy, lighting, MRO, networking, renewables, safety, security, utility and wire and cable. Customer Centered Approach. Each of our customers have unique business models, challenges and priorities. Our dedicated technical experts have extensive experience and product knowledge and are committed to providing solutions tailored to their unique needs. With specialized industry knowledge and a focus on the latest technologies, we help design and deploy solutions that address top business priorities. Global Reach with Local Expertise. Our international operations and global sourcing capabilities enable us to service our customers wherever they may need us. WESCO has approximately 800 branches, warehouses and sales offices with operations in more than 50 countries. Our global distribution network includes 42 facilities that operate as regional distribution centers or large branch locations in key geographic areas in North America, Europe and Latin America. These facilities add value for our customers and suppliers through the combination of a broad and deep selection of inventory, online ordering and next-day shipment capabilities, and central order handling and fulfillment. Our global network allows us to enhance local customer service by tailoring individual branch products and services to local customer needs. Comprehensive Value-Added Services. We provide a wide range of value-added services, which draw on our product knowledge and logistics expertise, to enable our customers to save time, improve productivity, mitigate risk and increase profitability. Our broad service offering includes installation enhancement, materials management, kitting and labeling, extensive MRO solutions, onsite job trailer solutions, end-to-end supply chain management and project management/execution across the project lifecycle. Smart, Digital Solutions. Our Silicon Valley innovation center and partnerships with industry-leading technology companies bring unique capabilities in digital and information-based solutions. These solutions include global e-commerce platforms, vendor managed inventory, point of use systems, last mile optimization, supply chain engineering and intelligent automation. From enterprise-wide connectivity to real-time analytics and reporting, our digital ecosystem supports all business needs. Geography Our network of branches, warehouses and sales offices consists of 506 locations in the U.S., 154 in Canada, 60 in Europe and the Middle East, 59 in Latin America and 38 in the Asia Pacific region. This includes 42 facilities that operate as regional distribution centers or large branch locations, of which 33 are located in the U.S., six are in Canada, two are in Europe and one is in Latin America. We also sell to global customers through sales offices and branch operations in various locations throughout Europe, the Middle East, Latin America and the Asia Pacific region. Human Capital At WESCO, our people and our high-performance culture are our greatest assets. We are committed to continuous improvement and leveraging our diverse and talented workforce in pursuing WESCO’s vision to be the best tech-enabled supply chain solutions provider in the world. The merger of WESCO and Anixter doubled the Company’s revenue, and significantly increased our employee headcount and global footprint, including the number of countries in which we operate. As of December 31, 2020, the Company had nearly 18,000 full-time employees worldwide, with more than 12,000 in the U.S. and approximately 5,800 in international locations. Compensation and Benefits Program. WESCO provides competitive compensation and benefits packages in each of our locations around the globe. In the U.S., we provide a comprehensive benefits program that offers choices to fit our employees’ diverse needs including health and disability benefits, paid time-off, life insurance, retirement programs, and access to other services that support health and wellness. We also have an employee assistance program available to our employees and their family members. 4 Table of Contents Inclusion and Diversity. As part of WESCO's integration with Anixter, we conducted a company-wide culture survey to give all employees a voice in actively shaping the values that will define the combined organization, one of which is inclusion and diversity. The goals of WESCO’s Inclusion and Diversity program are to 1) leverage the unique experiences and perspectives of our talented workforce to support WESCO’s mission, 2) further engage employees and build an inclusive culture, 3) recruit and develop talent that bring new perspectives and thought processes to WESCO, 4) increase representation of suppliers that are owned and operated by teams with diverse backgrounds and 5) support the communities in which we operate. WESCO has established an Inclusion & Diversity Council comprised of members of our senior management to lead the formation of four Business Resource Groups (“BRGs”) that will support four identity groups – women, BIPOC (Black, Indigenous, and People of Color), LGBTQ+, and veterans of the armed forces. These BRGs foster a sense of community and inclusion, provide opportunities to network, support advancement opportunities within the organization, and assist with recruiting. The BRGs are global and open to all employees regardless of any aspect of their personal identity. WESCO has established relationships with several charitable organizations and encourages employees to volunteer in the community by providing one day of paid volunteer time per year. By connecting with and contributing to local charitable organizations, WESCO supports the development of strong, vibrant and diverse communities. Safety. Safety is a core value of WESCO and we do not tolerate violations of established safety protocol. We are committed to reducing or eliminating health and safety risks through dedicated programs, leadership commitment, and employee involvement. We seek to achieve continuous improvement in the safety of our facilities and injury-leading injury rates. In response to the COVID-19 pandemic, we implemented significant operating changes to ensure a safe operating environment for our employees, and to protect the communities in which we operate. As an essential business, substantially all of our distribution facilities remained open and we implemented additional safety measures for employees doing critical on-site work and required all other employees to work remotely. Training and Development. WESCO offers several certification and training programs, some of which are required for all employees while others are voluntary or based on job role. The Company offers a tuition reimbursement program to eligible employees to encourage the pursuit of undergraduate and graduate education to prepare employees for expanded roles in the business. The Company has had a sales development training program in place for over ten years. The program is designed to systematically train and develop new college graduates through on-the-job rotations and cohort learning and development during the first year of employment. Graduates of the program move into various sales and operations roles after completing the one-year program. The Company also sponsors a summer internship program to provide college students with real work experience and give them the opportunity to evaluate different career fields. Intellectual Property We protect our intellectual property through a combination of trademarks, patents and trade secrets, foreign intellectual property laws, confidentiality procedures and contractual provisions. We currently have trademarks, patents and service marks registered with the U.S. Patent and Trademark Office and in various other countries. The trademarks and service marks registered in the U.S. include, among others: “WESCO®”, our corporate logo and the running man logo. The Company's "Anixter" trademark is registered in the U.S. and various foreign jurisdictions and its "EECOL" trademark is registered in Canada. We have also applied to register international trademarks, patents, and service mark applications in various foreign jurisdictions. While our patents have value, none is so essential that its loss would materially affect our business. 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. 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. Table of Contents Seasonality have varied significantly from this pattern. Website Access Our operating results are not significantly affected by seasonal factors. Sales during the first and fourth quarters are usually affected by a reduced level of activity due to the impact of weather on projects. Sales typically increase beginning in March, with slight fluctuations per month through October. During periods of economic expansion or contraction, our sales by quarter 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 U.S. Securities and Exchange Commission (the “SEC”). In addition, our charters for our Executive Committee, Nominating and Governance Committee, Audit Committee and Compensation Committee, as well as our Corporate Governance Guidelines, Code of Principles for Senior Executives, Independence Policy, Global Anti-Corruption Policy, and 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 current expectations and beliefs, as well as on assumptions made by and information currently available to management, current market trends and market conditions and involve various risks and uncertainties, some of which are beyond our control and which may cause actual results to differ materially from those contained in the forward-looking statements. In addition, forward-looking statements in this document include information and statements regarding the expected benefits and costs of the transaction between WESCO and Anixter, including anticipated future financial and operating results, synergies, accretion and growth rates, and the combined company's plans, objectives, expectations and intentions, statements that address the combined company's expected future business and financial performance, and other similar statements. 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. 5 6 Table of Contents Seasonality Our operating results are not significantly affected by seasonal factors. Sales during the first and fourth quarters are usually affected by a reduced level of activity due to the impact of weather on projects. 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. 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 U.S. Securities and Exchange Commission (the “SEC”). In addition, our charters for our Executive Committee, Nominating and Governance Committee, Audit Committee and Compensation Committee, as well as our Corporate Governance Guidelines, Code of Principles for Senior Executives, Independence Policy, Global Anti-Corruption Policy, and 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 current expectations and beliefs, as well as on assumptions made by and information currently available to management, current market trends and market conditions and involve various risks and uncertainties, some of which are beyond our control and which may cause actual results to differ materially from those contained in the forward-looking statements. In addition, forward-looking statements in this document include information and statements regarding the expected benefits and costs of the transaction between WESCO and Anixter, including anticipated future financial and operating results, synergies, accretion and growth rates, and the combined company's plans, objectives, expectations and intentions, statements that address the combined company's expected future business and financial performance, and other similar statements. 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. 6 Executive OfficersOur executive officers and their respective ages and positions as of March 1, 2021, are set forth below.NameAgePositionJohn J. Engel59Chairman, President and Chief Executive OfficerDavid S. Schulz55Executive Vice President and Chief Financial OfficerJames F. Cameron55Executive Vice President and General Manager, Utility and Broadband SolutionsTheodore A. Dosch61Executive Vice President and Strategy and Chief Transformation OfficerWilliam C. Geary, II50Executive Vice President and General Manager, Communications and Security SolutionsAkash Khurana47Executive Vice President and Chief Information and Digital OfficerDiane E. Lazzaris54Executive Vice President and General CounselHemant Porwal47Executive Vice President Supply Chain and OperationsNelson J. Squires III59Executive Vice President and General Manager, Electrical and Electronic SolutionsChristine A. Wolf60Executive Vice President and Chief Human Resources OfficerSet forth below is biographical information for our executive officers listed above.John J. Engel has served as Chairman of the Board of Directors since May 2011 and as our President and Chief Executive Officer since 2009. Previously, Mr. Engel served as our Senior Vice President and Chief Operating Officer from 2004 to 2009. Before joining WESCO in 2004, Mr. Engel served as Senior Vice President and General Manager of Gateway, Inc., Executive Vice President and Senior Vice President of Perkin Elmer, Inc., Vice President and General Manager of Allied Signal, Inc., and also held various engineering, manufacturing and general management positions at General Electric Company.David S. Schulz has served as our Executive Vice President and Chief Financial Officer since June 2020, and from October 2016 to June 2020, he served as Senior Vice President and Chief Financial Officer. Prior to joining WESCO, Mr. Schulz served as Senior Vice President and Chief Operating Officer of Armstrong Flooring, Inc. from April 2016 to October 2016 and from November 2013 to March 2016, he served as Senior Vice President and Chief Financial Officer of Armstrong World Industries, Inc., and as Vice President, Finance of the Armstrong Building Products division from 2011 to November 2013. Prior to joining Armstrong World Industries in 2011, he held various financial leadership roles with Procter & Gamble and The J.M. Smucker Company. Mr. Schulz began his career as an officer in the U.S. Marine Corps.James F. Cameron has served as our Executive Vice President and General Manager of the Utility and Broadband Solutions division since June 2020 and from January 2014 to June 2020 as Vice President and General Manager, Utility and Broadband Group and as Regional Vice President of the utility business from 2011 to 2013. Prior to joining WESCO in 2011, Mr. Cameron served as Senior Vice President of the Utility Group, and Vice President of Marketing & Operations with Irby, a Sonepar Company. Earlier in his career, Mr. Cameron held various positions with Hubbell Power Systems, Thomas & Betts and the ABB Power T&D Company.Theodore A. Dosch has served as our Executive Vice President of Strategy and Chief Transformation Officer since June 2020. Prior to the Anixter acquisition in 2020, Mr. Dosch served as the Executive Vice President - Finance and Chief Financial Officer of Anixter International Inc. from July 2011 to June 2020 after serving as its Senior Vice President - Global Finance from January 2009 to July 2011. Previously, Mr. Dosch served as CFO - North America and Vice President - Maytag Integration at Whirlpool Corporation from 2006 to 2008; and held a variety of financial related roles at Whirlpool since 1986.William C. Geary, II has served as our Executive Vice President and General Manager of the Communications and Security Solutions division since June 2020. Prior to the Anixter acquisition in 2020, Mr. Geary served as Executive Vice President - Network & Security Solutions of Anixter International Inc. from July 2017 to June 2020 and Senior Vice President - Global Markets - Network & Security Solutions from January 2017 to June 2017. Previously, Mr. Geary served 22 years and held a variety of senior management roles at Accu-Tech Corporation, a wholly-owned subsidiary of Anixter.Akash Khurana has served as our Executive Vice President and Chief Information and Digital Officer since joining the Company in November 2020. Before joining WESCO, Mr. Khurana served as Chief Information Officer and Chief Data Officer of Global information at McDermott from March 2015 to November 2020, Senior Director of Global Product Lines and Regional P&Ls at Baker Hughes, and a variety of leadership roles at GE Healthcare and Power & Water Divisions.Table of Contents7Table of Contents Diane E. Lazzaris has served as our Executive Vice President and General Counsel since June 2020, and from January 2014 to June 2020 she served as Senior Vice President and General Counsel. From 2010 to December 2013 she served as our Vice President, Legal Affairs. Prior to joining WESCO, Ms. Lazzaris served as Senior Vice President - Legal, General Counsel and Corporate Secretary of Dick’s Sporting Goods, Inc. from 2008 to 2010. From 1994 to 2008, she held various corporate counsel positions at Alcoa Inc., including Group Counsel to a group of global businesses. Hemant Porwal has served as our Executive Vice President Supply Chain and Operations division since June 2020, and from January 2015 to June 2020 as Vice President of Global Supply Chain and Operations. Before joining WESCO, Mr. Porwal served as Vice President at Sears Holding Corporation, leading their global procurement function since 2011, and PepsiCo where he held roles with increasing responsibilities in Operations, Supply Chain, Procurement and Finance. Nelson J. Squires III has served as our Executive Vice President and General Manager of the Electrical and Electronic Solutions division since June 2020, and from October 2019 to June 2020 he served as our Senior Executive Vice President and Chief Operating Officer. From January 2018 to September 2019 he served as Group Vice President and General Manager of WESCO Canada/International/WIS and as Group Vice President and General Manager of WESCO Canada from August 2015 to January 2018. From 2010 to July 2015, he was Vice President and General Manager, North America Merchant Gases and President, Air Products Canada of Air Products and Chemicals, Inc. He has also served in regional and general management positions, as director of investor relations, and in various sales positions at Air Products. Earlier in his career, he was a Captain in the U.S. Army. Christine A. Wolf has served as our Executive Vice President and Chief Human Resources Officer since June 2020, and from June 2018 to June 2020 she served as Senior Vice President and Chief Human Resources Officer. Before joining WESCO from 2011 to June 2018, Ms. Wolf served as the Chief Human Resources Officer of Orbital ATK, Inc. until its acquisition by Northrop Grumman. From 2008 to 2011, she served as the Chief Human Resources Officer of Fannie Mae and from 2004 to 2008 she served as Chief Human Resources Officer of E*Trade Financial Corporation. Prior to that, she held various positions in human resources with companies in a variety of industries. 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. Risks Related to Our Acquisitions, Divestitures and Strategic Initiatives We may not be able to fully realize the anticipated benefits and cost savings of our merger with Anixter. On June 22, 2020, we completed our merger with Anixter. The success of the merger, including anticipated benefits and cost savings, depends on the successful combination and integration of the companies’ businesses. It is possible that the integration process could result in the loss of key employees, higher than expected costs, diversion of management attention, the disruption of either company’s ongoing legacy businesses or inconsistencies in standards, controls, procedures and policies that adversely affect the combined company’s ability to maintain relationships with customers, suppliers and employees or to achieve the anticipated benefits and cost savings of the merger. We have incurred, and expect to continue to incur, a number of non-recurring costs associated with the merger and combining the operations of the two companies. This includes transaction fees and expenses related to formulating and implementing integration plans, including facilities, systems consolidation and employment-related costs. We continue to assess the magnitude of these costs, and additional unanticipated costs may be incurred in the integration of the two companies’ businesses. Although we expect that the elimination of duplicative costs, as well as the realization of other efficiencies related to the integration of the businesses, should allow us to offset integration-related costs over time, this net benefit may not be achieved in the near term, or at all. If we experience difficulties with the integration process, the anticipated benefits of the merger may not be realized or may take longer to realize than expected. These integration matters could have an adverse effect on us for an undetermined period. In addition, the actual cost savings of the merger could be less than anticipated. 8 Table of Contents 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. We have invested significantly in expanding our e-commerce capabilities and online customer experience. If our efforts to expand our capabilities in this area are not successful, we may not realize the return on our investments as anticipated, or our operating results could be adversely affected by slower than expected sales growth or additional costs. Furthermore, 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. Our strategic and operational initiatives are subject to various risks and uncertainties, and we may be unable to implement the initiatives successfully. We are engaged in a number of strategic and operational initiatives designed to optimize costs and improve operational efficiency. Our ability to successfully execute these initiatives is subject to various risks and uncertainties and there can be no assurance regarding the timing of or extent to which we will realize the anticipated benefits, if at all. Any future acquisitions that we may undertake will involve a number of inherent risks, any of which could cause us not to realize the anticipated benefits. 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 a business or assets. Risks Related to the Global Macroeconomic Environment and Our International Operations Our global operations expose us to political, economic, legal , currency and other risks. We operate a network of approximately 800 branches, warehouses and sales offices with operations in more than 50 countries. Approximately one-third of our employee population are non-U.S. employees. We derive approximately 26% of our revenues from sales outside of the U.S. As a result, we are subject to additional risks associated with owning and operating businesses in these foreign markets and jurisdictions. Operating in the global marketplace exposes us to a number of risks including: • • • • • • • • geopolitical and security issues, such as armed conflict and civil or military unrest, political instability, terrorist activity and human rights concerns, and natural disasters and public health crises, including pandemics such as COVID-19, and other catastrophic events; global supply chain disruptions and large-scale outages or inefficient provision of services from utilities, transportation, data hosting, or telecommunications providers; abrupt changes in government policies, laws, regulations or treaties, including imposition of export, import, or doing- business regulations, trade sanctions, embargoes or other trade restrictions; tax or tariff increases; government restrictions on, or nationalization of, our operations in any country; changes in labor conditions and difficulties in staffing and managing international operations, including logistical and communication challenges; restrictions on currency movement; 9 Table of Contents • • • • • challenges in protecting our IP rights in certain countries; local business and cultural factors that differ from our current standards and practices; continuing uncertainty regarding social, political, immigration, and tax and trade policies in the U.S. and abroad; currency exchange rate fluctuations; and other social, political and economic instability, including recessions and other economic crises in other regions. Adverse conditions in the global economy and disruptions of financial markets could negatively impact us and our customers. 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, particularly commodity-driven end markets such as oil and gas and metals and mining. Adverse economic conditions or lack of liquidity in these markets, particularly in North America, may adversely affect our revenues and operating results. Economic and financial market conditions may 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. Although no single customer accounts for more than 2% of our sales, a payment default by one of our larger customers could have a negative short-term impact on earnings or liquidity. A financial or industry downturn could have an adverse effect on the collectability of our accounts receivable, which could result in longer payment cycles, increased collection costs and defaults. Should one or more of our larger customers declare bankruptcy, it could adversely affect the collectability of our accounts receivable, along with credit loss 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 economic, political and financial environment may also affect our business and financial condition in ways that we currently cannot predict, and there can be no assurance that economic and political instability, both domestically and internationally (for example, resulting from changes to trade policies, tariffs or participation in trade agreements or economic and political unions) will not adversely affect our results of operations, cash flows or financial position in the future. Our business and operations have been and will continue to be adversely affected by the COVID-19 pandemic, and the duration and extent to which it will affect our business, financial condition, results of operations, cash flows, liquidity, and stock price remains uncertain. The global COVID-19 pandemic has created significant disruption to the broader economies, financial markets, workforces, business environment, and our suppliers and customers. It began to adversely affect our business, results of operations, and financial condition late in the first quarter of 2020 and is continuing, and the effects include lost or delayed revenue to us. The pandemic has caused significant disruptions to our business due to, among other things, reduced transportation, restrictions on travel, disruptions to our suppliers and global supply chain, the impact on our customers and their demand for our products and services and ability to pay for them, as well as temporary closures of facilities. Some of the actions we have taken in response to the COVID-19 pandemic, such as implementing remote working arrangements, may also create increased vulnerability to cybersecurity incidents and other risks. The duration and extent to which the COVID-19 pandemic will continue to impact our business, results of operations, and financial condition depends on many evolving factors and future developments for which there is significant uncertainty, such as the severity and transmission rate of the virus, governmental, business and individuals' actions taken in response, the development and availability of effective treatment or vaccines, the extent and effectiveness of containment actions, as well as the matters noted above. In addition, the COVID-19 pandemic may continue to adversely affect many of our suppliers’ and customers' businesses and operations, including the ability of our suppliers to manufacture or obtain the products we sell or to meet delivery requirements and commitments, and our customers’ demand for our products and services and the ability to pay for them, all of which could adversely affect our sales and results of operations. While we are supporting essential businesses and our branch locations have remained operational consistent with existing governmental and public health authority directives to date, there is significant uncertainty as to what steps we may need to take in response to the pandemic in the future (including in response to any new health and safety measures or restrictions), and what impact they will have on our business and operations. We have taken actions to reduce costs and cash expenditures, including reductions in administrative expenses, payroll and benefits, capital expenditures, and other costs, and further steps may become necessary in the future. Due to the uncertainty of COVID-19, we will continue to assess the situation, including the impact of governmental regulations or restrictions that might be imposed or re-imposed in response to the pandemic. If we are unable to appropriately respond to or manage the impact of these events, our business and results of operations may be adversely affected. 10 Table of Contents In addition, the impact of COVID-19 on macroeconomic conditions has adversely affected and may continue to affect the functioning of financial and capital markets, foreign currency exchange rates, commodity and energy prices, and interest rates. Even after the COVID-19 pandemic subsides, we may continue to experience adverse impacts to our business as a result of any economic recession or depression that has or may occur. The long-term financial and economic impacts of the COVID-19 pandemic may continue for a significant period and cannot be reliably quantified or estimated at this time due to the uncertainty of these future developments. Any of these events could materially adversely affect our business, financial condition, results of operations, cash flows, liquidity and stock price. We are subject to various laws and regulations globally and any failure to comply could adversely affect our business. We are subject to a broad range of laws and regulations in the jurisdictions where we operate globally, including, among others, those relating to data privacy and protection, cyber security, import and export requirements, anti-bribery and corruption, product compliance, supplier regulations regarding the sources of supplies or products, environmental protection, health and safety requirements, intellectual property, foreign exchange controls and cash repatriation restrictions, labor and employment, e-commerce, advertising and marketing, anti-competition and tax. Compliance with these domestic and foreign laws, regulations and requirements may be burdensome, increasing our cost of compliance and doing business. In addition, as a supplier to federal, state, and local government agencies, we must comply with certain laws and regulations relating specifically to our governmental contracts. Although we have implemented policies and procedures designed to facilitate compliance with these laws, we cannot assure you that our employees, contractors, or agents will not violate such laws and regulations, or our policies and procedures. Any such violations could result in the imposition of fines and penalties, damage to our reputation, and, in the case of laws and regulations relating to governmental contracts, the loss of those contracts. Fluctuations in foreign currency have an effect on our results from operations. The results of our foreign operations are reported in the local currency and then translated into U.S. dollars at the applicable exchange rates for inclusion in our consolidated financial statements. The exchange rates between some of these currencies and the U.S. dollar have fluctuated significantly in recent years, and may continue to do so in the future. We may incur losses related to foreign currency fluctuations, and foreign exchange controls may prevent us from repatriating cash in countries outside the U.S. In addition, because our financial statements are stated in U.S. dollars, such fluctuations may also affect the comparability of our results between financial periods. Risks Related to Our Information Systems and Technology Any significant disruption or failure of our information systems, could lead to interruptions in our operations, which may materially adversely affect our business operations, financial condition, and 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. We rely on the proper functioning and availability of our information systems to successfully operate our business, including managing inventory, processing customer orders, shipping products and providing service to customers, and compiling financial results. 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. Any significant or prolonged unavailability or failure of our critical information systems could materially impair our ability to maintain proper levels of inventories, process orders, meet the demands of our customers in a timely manner, and other harmful effects. We seek to continually enhance our information systems, and such changes could potentially create a disruption or failure of our existing information technology. Conversions to new information technology systems may result in cost overruns, delays or business interruptions. Additionally, efforts to align portions of our business on common platforms, systems and processes could result in unforeseen interruptions, increased costs or liability, and other negative effects. If our information technology systems are disrupted, become obsolete or do not adequately support our strategic, operational or compliance needs, it could result in a competitive disadvantage or adversely affect our business operations and financial condition, including our ability to process orders, receive and ship products, maintain inventories, collect accounts receivable and pay expenses, therefore impacting our results of operations. 11 Table of Contents We may experience a failure in or breach of our information security systems, or those of our third-party service providers, as a result of cyber-attacks or information security breaches. 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 seek to gain to access our systems and networks, or those of our third-party service providers. Additionally, third parties may fraudulently attempt to induce employees or customers into disclosing sensitive information such as user names, passwords and other information in order to gain access to our customers’ data or our data, including our intellectual property and other confidential business information, or our information technology systems. Information technology security threats to our systems, networks and data have dramatically increased in recent years due the proliferation of new technologies and the increased sophistication and activities of perpetrators. These threats pose a risk to the security of our systems and networks and the confidentiality, availability and integrity of our proprietary and confidential information. Although we actively manage information technology security risks within our control and continually seek to enhance our controls and processes designed to protect our systems, computers, networks and data, there can be no assurance that such actions will be sufficient to mitigate all potential risks. As cyber threats continue to evolve, we may be required to expend additional resources to continue to enhance our information security measures and remediate any information security vulnerabilities. Despite the precautions we take to mitigate the risks of such events, an attack on our enterprise information technology system, or those of third parties with which we do business, could result in theft or unauthorized disclosure of our proprietary or confidential information or a breach of confidential customer, supplier or employee information. Such events could impair our ability to conduct our operations, which could have an adverse impact on revenue and harm our reputation. Additionally, such an event could expose us to regulatory sanctions or penalties, lawsuits or other legal action or cause us to incur legal liabilities and costs, which could be significant, in order to address and remediate the effects of an attack and related security concerns. The insurance coverage we maintain may be inadequate to cover claims or liabilities relating to a cybersecurity attack. In addition, the legal and regulatory environment surrounding information security and privacy in the U.S. and international jurisdictions is constantly evolving. Violation or non-compliance with any of these laws or regulations, contractual requirements relating to data security and privacy, or our own privacy and security policies, either intentionally or unintentionally, or through the acts of intermediaries could have a material adverse effect on our brand, reputation, business, financial condition and results of operations, as well as subject us to significant fines, litigation losses, third-party damages and other liabilities. Risks Related to Our Industry, Markets and Business Operations Loss of key suppliers could decrease sales, profit margins, and earnings. Most of our agreements with suppliers are terminable by either party on 60 days' notice or less for any reason. We currently source products from thousands of suppliers. However, our 10 largest suppliers in 2020 accounted for approximately 30% of our purchases by annual dollar volume for the period. 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 reduce its reliance on distribution channels, the loss of key preferred supplier agreements, or disruptions in a key supplier's operations could have a material adverse effect on our business. Although we believe our relationships with our key suppliers are good, they could change their strategies as a result of a change in control, expansion of their direct sales force, changes in the marketplace or other factors beyond our control, including a key supplier becoming financially distressed. Supply interruptions could arise from shortages of raw materials, effects of economic, political or financial market conditions on a supplier's operations, labor disputes or weather conditions affecting products or shipments, transportation disruptions, natural disasters, outbreaks of disease, information system disruptions or other reasons beyond our control. 12 Table of Contents Product cost fluctuations, lack of product availability, or inefficient supply chain operations could decrease sales, profit margins, and earnings. Some 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. While increases in the cost of energy or products could have adverse effects, decreases in those costs, particularly if severe, could also adversely impact us by creating deflation in selling prices, which could cause our gross profit margin to deteriorate. Fluctuations in energy or raw materials costs can also adversely affect our customers. Declines in oil and natural gas prices can negatively impact our customers operating in those industries and, consequently, our sales to those customers. 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, decrease sales, profit margins and earnings, which could adversely affect our business. A decline in project volume could adversely affect our sales and earnings. While much of our sales and earnings are generated by comparatively smaller and more frequent orders, the fulfillment of large orders for large capital projects generates significant sales and earnings. Accordingly, our results of operations can fluctuate depending on whether and when large project awards occur and the commencement and progress of work under large contracts already awarded. The awarding and timing of projects is unpredictable and depends on many factors outside of our control. Project awards often involve complex and lengthy negotiations and competitive bidding processes. These processes can be impacted by a wide range of factors including a customer’s decision to not proceed with a project or its inability to obtain necessary governmental approvals or financing, commodity prices, and overall market and economic conditions. Slow macro-economic growth rates, difficult credit market conditions for our customers, weak demand for our customers’ products or other customer spending constraints can result in project delays or cancellations. In addition, some our competitors may also be more willing to take greater or unusual risks or include terms and conditions in a contract that we might not deem acceptable. We have risks associated with the sale of nonconforming products and services. Historically, we have experienced a small number of cases in which our vendors supplied us with products that did not conform to the agreed upon specifications without our knowledge. Additionally, we may inadvertently sell a product not suitable for a customer’s application. We address this risk through our quality control processes, by seeking to limit liability and our warranty in our customer contracts, by obtaining indemnification rights from vendors and by maintaining insurance responsive to these risks. However, there can be no assurance that we will be able to include protective provisions in all of our contracts, that vendors will have the financial capability to fulfill their indemnification obligations to us, or that insurance can be obtained with sufficiently broad coverage or in amounts sufficient to fully protect us. Disruptions to our logistics capability or supply chain may have an adverse impact on our operations. Our global logistics services are operated through distribution centers around the world. 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. 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 that we have concluded are 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 we may encounter. We also depend on transportation service providers for the delivery of products to our customers. Any significant interruption or disruption in service at one or more of our distribution centers due to severe weather, natural disasters, information technology upgrades, operating issues, disruptions to our transportation network, public heath crises, pandemics or other unanticipated events, could impair our ability to obtain or deliver inventory in a timely manner, cause cancellations or delays in shipments to customers or otherwise disrupt our normal business operations. 13 Table of Contents margins, and earnings. Some 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. While increases in the cost of energy or products could have adverse effects, decreases in those costs, particularly if severe, could also adversely impact us by creating deflation in selling prices, which could cause our gross profit margin to deteriorate. Fluctuations in energy or raw materials costs can also adversely affect our customers. Declines in oil and natural gas prices can negatively impact our customers operating in those industries and, consequently, our sales to those customers. 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, decrease sales, profit margins and earnings, which could adversely affect our business. A decline in project volume could adversely affect our sales and earnings. While much of our sales and earnings are generated by comparatively smaller and more frequent orders, the fulfillment of large orders for large capital projects generates significant sales and earnings. Accordingly, our results of operations can fluctuate depending on whether and when large project awards occur and the commencement and progress of work under large contracts already awarded. The awarding and timing of projects is unpredictable and depends on many factors outside of our control. Project awards often involve complex and lengthy negotiations and competitive bidding processes. These processes can be impacted by a wide range of factors including a customer’s decision to not proceed with a project or its inability to obtain necessary governmental approvals or financing, commodity prices, and overall market and economic conditions. Slow macro-economic growth rates, difficult credit market conditions for our customers, weak demand for our customers’ products or other customer spending constraints can result in project delays or cancellations. In addition, some our competitors may also be more willing to take greater or unusual risks or include terms and conditions in a contract that we might not deem acceptable. We have risks associated with the sale of nonconforming products and services. Historically, we have experienced a small number of cases in which our vendors supplied us with products that did not conform to the agreed upon specifications without our knowledge. Additionally, we may inadvertently sell a product not suitable for a customer’s application. We address this risk through our quality control processes, by seeking to limit liability and our warranty in our customer contracts, by obtaining indemnification rights from vendors and by maintaining insurance responsive to these risks. However, there can be no assurance that we will be able to include protective provisions in all of our contracts, that vendors will have the financial capability to fulfill their indemnification obligations to us, or that insurance can be obtained with sufficiently broad coverage or in amounts sufficient to fully protect us. Disruptions to our logistics capability or supply chain may have an adverse impact on our operations. Our global logistics services are operated through distribution centers around the world. 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. 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 that we have concluded are 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 we may encounter. We also depend on transportation service providers for the delivery of products to our customers. Any significant interruption or disruption in service at one or more of our distribution centers due to severe weather, natural disasters, information technology upgrades, operating issues, disruptions to our transportation network, public heath crises, pandemics or other unanticipated events, could impair our ability to obtain or deliver inventory in a timely manner, cause cancellations or delays in shipments to customers or otherwise disrupt our normal business operations. Product cost fluctuations, lack of product availability, or inefficient supply chain operations could decrease sales, profit An increase in competition could decrease sales, profit margins, and earnings. Table of Contents We operate in a highly competitive industry and compete directly with global, national, regional and local providers of like products and services. Some of our existing competitors have, and new market entrants may have, greater resources than us. Competition 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. There may be new market entrants with non-traditional business and customer service models, resulting in increased competition and changing industry dynamics. 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. We may be subject to supplier price increases while not being able to increase prices to customers. 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, on-line offerings or otherwise, our ability to attract and retain customers could be materially adversely affected. 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. These factors, in addition to competitive pressures resulting from the fragmented nature of our industry, could affect our sales, profit margins and earnings. Risks Related to Tax Matters Changes in tax laws or challenges to the Company's tax positions by taxing authorities could adversely impact the Company's results of operations and financial condition. We are subject to taxes in jurisdictions in which we do business, including but not limited to taxes imposed on our income, receipts, stockholders' equity, property, sales, purchases and payroll. As a result, the tax expense we incur can be adversely affected by changes in tax law. We frequently cannot anticipate these changes in tax law, which can cause unexpected volatility in our results of operations. Changes in the tax law at the federal and state/provincial levels, in particular in the U.S. and Canada, can have a material adverse effect on our results of operations. Additionally, the tax laws to which the Company is subject are inherently complex and ambiguous. Therefore, we must interpret the applicable laws and make subjective judgments about the expected outcome upon challenge by the applicable taxing authorities. As a result, the impact on our results from operations of the application of enacted tax laws to our facts and circumstances is sometimes uncertain. If a tax authority successfully challenges our interpretation and application of the tax law to our facts and circumstances, there can be no assurance that we can accurately predict the outcome and the taxes ultimately owed upon effective settlement, which may differ from the tax expense recognized in our consolidated statements of income and comprehensive income (loss) and accrued in our consolidated balance sheets. Additionally, if we cannot meet liquidity requirements in the U.S., we may have to repatriate funds from overseas, which would result in additional income taxes being incurred on the amount repatriated. Risks Related to Our Indebtedness and Capital Structure 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. In 2020, we incurred significant additional indebtedness to finance the acquisition of Anixter, which increased our interest expense from historical levels. As a result, a substantial portion of our cash flow from operations must be dedicated to the payment of principal and interest on our indebtedness, thereby reducing the funds available to us for other purposes. As of December 31, 2020, excluding debt discount and debt issuance costs, we had $5.0 billion of consolidated indebtedness. We and our subsidiaries may also undertake additional borrowings in the future, subject to certain limitations contained in the debt instruments governing our indebtedness. Over the next three years, we will be required to repay or refinance approximately $1.6 billion of our currently outstanding indebtedness. Our debt service obligations impact our ability to operate and grow our business. Our payments of principal and interest on our indebtedness reduce the amount of funds available to us to invest in operations, future business opportunities, acquisitions, and other potentially beneficial activities. Our debt service obligations also reduce our flexibility to adjust to changing market conditions and may increase our vulnerability to adverse economic, financial market and industry conditions. Our ability to service and refinance our indebtedness, make scheduled payments on our operating leases and fund capital expenditures, acquisitions or other business opportunities, will depend in large part on both our future performance and the availability of additional financing in the future, as well as prevailing market conditions and other factors beyond our control. We cannot assure you that it will be able to obtain additional financing on terms acceptable to us or at all. 13 14 Table of Contents There can be no assurance that our business will continue to generate sufficient cash flows from operations in the future to service our debt, make necessary capital expenditures, or meet other cash needs. If we do not achieve the expected benefits and cost savings from the merger with Anixter, or if the financial performance of the combined company does not meet current expectations, then our ability to service or repay our indebtedness may be adversely impacted. If unable to do so, we may be required to refinance all or a portion of our existing debt, sell assets, or obtain additional financing. We cannot make assurances that we will be able to refinance our debt on terms acceptable to us, or at all. If we are unable to repay indebtedness, lenders having secured obligations could proceed against the collateral securing these obligations. Our debt agreements contain restrictive covenants that may limit our ability to operate our business. Our credit facilities and our other debt agreements, including those governing the debt financings incurred in connection with the recent merger, contain various covenants that restrict or limit our ability to, among other things: incur additional indebtedness or create liens on assets engage in mergers, acquisitions or consolidations, • • • make loans or other investments, • • transfer, lease or dispose of assets outside the ordinary course of business, pay dividends, repurchase equity interests, make other payments with respect to equity interests, repay or repurchase subordinated debt, and engage in affiliate transactions. • In addition, certain of these debt agreements contain financial covenant that may require us to maintain certain financial ratios and other requirements in certain circumstances. 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 or taking advantage of new business opportunities that might otherwise be beneficial to us. Our ability to comply with these covenants and restrictions may be affected by economic, financial and industry conditions or regulatory changes beyond our control. Failure to comply with these covenants or restrictions could result in an event of default, under our revolving lines of credit or the indentures governing certain of our outstanding notes which, if not cured or waived, could accelerate our repayment obligations. See the liquidity section in "Item 7. Management's Discussion and Analysis" for further details. General Risk Factors We are subject to costs and risks associated with global laws and regulations affecting our business, as well as litigation for product liability or other matters affecting our business. The global legal and regulatory environment is complex and exposes us to compliance costs and risks, as well as litigation and other legal proceedings, which could materially affect our operations and financial results. These laws and regulations may change, sometimes significantly, as a result of political or economic events, and some changes are anticipated to occur in the coming year. They include tax laws and regulations, import and export laws and regulations, labor and employment laws and regulations, product safety, occupational safety and health laws and regulations, securities and exchange laws and regulations, data privacy laws and regulations (and other laws applicable to publicly-traded companies such as the Foreign Corrupt Practices Act), and environmental laws and regulations. Furthermore, as a government contractor selling to federal, state and local government entities, we are also subject to a wide variety of additional laws and regulations. Proposed laws and regulations in these and other areas could affect the cost of our business operations. From time to time we are involved in legal proceedings, audits or investigations which may relate to, for example, product liability, labor and employment (including wage and hour), tax, escheat, import and export compliance, government contracts, worker health and safety, and general commercial and securities matters. While we believe the outcome of 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 these as well as other contingencies could require us to take actions, which could adversely affect our operations or could require us to pay substantial amounts of money. 15 Table of Contents We must attract, retain and motivate key employees, and the failure to do so may adversely affect our business. 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 business, its sales and operating results. 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. 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. 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 economic, political, financial, and other factors. Item 1B. Unresolved Staff Comments. None. Item 2. Properties. We operate a network of nearly 700 branches and warehouse locations that hold inventory, and over 100 sales offices, with operations in more than 50 countries throughout the world. This includes 42 facilities with square footage between 100,000 and 500,000 that operate as regional distribution centers or large branch locations, of which 33 are located in the U.S., six are in Canada, two are in Europe and one is in Latin America. Approximately 8% of our facilities are owned, and the remainder are leased. We also lease our 118,000 square-foot headquarters in Pittsburgh, Pennsylvania. We do not regard the real property associated with any single facility as material to our operations. We believe our facilities are in good operating condition and are adequate for their respective uses. 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 litigation relating to commercial, product 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 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 fiscal period of one or more of these matters may have a material adverse effect on our results of operations for that period. Information relating to legal proceedings is disclosed in Note 16, "Commitments and Contingencies" of the Notes to Consolidated Financial Statements and is incorporated herein by reference. Item 4. Mine Safety Disclosures. Not applicable. 16 PART IIItem 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 25, 2021, there were 50,161,831 shares of common stock outstanding held by approximately 800 holders of record. We have not paid dividends on our common stock and do not currently plan to pay common dividends. We do, however, evaluate the possibility from time to time. In addition, the terms of the Revolving Credit Facility, as well as the indentures governing the 5.375% Senior Notes due 2021, 5.375% Senior Notes due 2024, 7.125% Senior Notes due 2025 and 7.250% Senior Notes due 2028 limit our ability to pay dividends and repurchase our common stock. See Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations — Liquidity and Capital Resources.”Issuer Purchases of Equity Securities. On December 13, 2017, WESCO announced that its Board of Directors approved, on December 7, 2017, the repurchase of up to $300 million of the Company's common stock through December 31, 2020. On October 31, 2018, the Company's Board of Directors approved an increase to the authorization from $300 million to $400 million. As disclosed in Note 13, "Earnings Per Share" of the Notes to Consolidated Financial Statements, as of December 31, 2020, 5,459,030 shares had been repurchased for $275.0 million under this repurchase authorization.Company Performance. The following stock price performance graph illustrates the cumulative total return on an investment in WESCO International, a 2020 Performance Peer Group, and the Russell 2000 Index. The graph covers the period from December 31, 2015 to December 31, 2020, and assumes that the value for each investment was $100 on December 31, 2015, and that all dividends were reinvested.2020 Performance Peer Group:Applied Industrial Technologies, Inc.Fastenal CompanyMSC Industrial Direct Co., Inc.Arrow Electronics, Inc.Genuine Parts CompanyRexel SAAvnet, Inc.HD Supply Holdings, Inc.Rockwell Automation, Inc.Barnes GroupHubbell, Inc.W.W. Grainger, Inc.Eaton Corporation PlcMRC Global, Inc.Table of Contents17Item 6. Selected Financial Data.The following selected financial data for the last five fiscal years has been derived from the Company's Consolidated Financial Statements for those years. This financial data should be read in conjunction with the Consolidated Financial Statements and Notes thereto included in Item 8, and with Management’s Discussion and Analysis of Financial Condition and Results of Operations, included in Item 7.Income Statement Data:Year Ended December 31,(In millions, except per share data)2020(1)2019201820172016Net sales$ 12,326.0 $ 8,358.9 $ 8,176.6 $ 7,679.0 $ 7,336.0 Cost of goods sold (excluding depreciation and amortization) 9,998.3 6,777.5 6,609.2 6,194.4 5,887.8 Selling, general and administrative expenses 1,859.0 1,173.1 1,151.9 1,101.5 1,050.8 Depreciation and amortization 121.6 62.1 63.0 64.0 66.9 Income from operations 347.1 346.2 352.5 319.1 330.5 Net interest and other 224.2 64.2 71.4 66.6 75.1 Loss on debt extinguishment(2) — — — — 123.9 Income before income taxes 122.9 282.0 281.1 252.5 131.5 Provision for income taxes 22.8 59.9 55.7 89.3 30.4 Net income 100.1 222.2 225.4 163.2 101.1 Net loss attributable to noncontrolling interests (0.5) (1.2) (2.0) (0.3) (0.5) Net income attributable to WESCO International, Inc. 100.6 223.4 227.4 163.5 101.6 Less: Preferred stock dividends 30.1 — — — — Net income attributable to common stockholders$ 70.5 $ 223.4 $ 227.4 $ 163.5 $ 101.6 Earnings per share attributable to common stockholders Basic$ 1.53 $ 5.18 $ 4.87 $ 3.42 $ 2.30 Diluted$ 1.51 $ 5.14 $ 4.82 $ 3.38 $ 2.10 Weighted-average common shares outstanding Basic 46.2 43.1 46.7 47.8 44.1 Diluted 46.6 43.5 47.2 48.4 48.3 Other Financial Data: Capital expenditures$ 56.7 $ 44.1 $ 36.2 $ 21.5 $ 18.0 Net cash provided by operating activities 543.9 224.4 296.7 149.1 300.2 Net cash used in investing activities (3,735.1) (60.8) (34.1) (5.3) (70.5) Net cash provided by (used in) financing activities 3,480.7 (109.8) (275.1) (141.2) (276.3) Balance Sheet Data: Total assets$ 11,880.2 $ 5,017.6 $ 4,605.0 $ 4,735.5 $ 4,431.8 Total debt (including current and short-term debt)(3) 4,898.8 1,283.8 1,223.5 1,348.6 1,385.3 Stockholders’ equity 3,336.4 2,258.7 2,129.7 2,116.1 1,963.6 (1) Year-over-year changes from 2020 to 2019 are primarily due to the merger with Anixter and related financing costs such as interest on borrowings, as well as amortization of intangible assets.(2) Represents the loss recognized in 2016 related to the redemption of the then outstanding 6.0% Convertible Senior Debentures due 2029 (the "2029 Debentures").(3) Includes the discount related to the 7.250% Senior Notes due 2028, the then outstanding 2029 Debentures, and the then outstanding Term Loan Facility. For 2020, 2018, 2017 and 2016, also includes debt issuance costs and adjustments to record the long-term debt assumed in the merger with Anixter at its acquisition date fair value. See Note 10, "Debt" of the Notes to Consolidated Financial Statements.Table of Contents18Table of Contents 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 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 provider of business-to-business distribution, logistics services and supply chain solutions. On June 22, 2020, WESCO completed its previously announced acquisition of Anixter, a Delaware corporation. Pursuant to the terms of the Agreement and Plan of Merger, dated January 10, 2020 (the “Merger Agreement”), by and among Anixter, WESCO and Merger Sub, Merger Sub was merged with and into Anixter (the “Merger”), with Anixter surviving the Merger and continuing as a wholly owned subsidiary of WESCO. On June 23, 2020, Anixter merged with and into Anixter Inc., with Anixter Inc. surviving to become a wholly owned subsidiary of WESCO. As a result of the Merger, the Company now employs nearly 18,000 people, maintains relationships with approximately 30,000 suppliers, and serves more than 125,000 customers worldwide. With nearly 1,500,000 products, end-to-end supply chain services, and extensive digital capabilities, WESCO provides innovative solutions to meet current customer needs across commercial and industrial businesses, contractors, government agencies, institutions, telecommunications providers, and utilities. WESCO has approximately 800 branches, warehouses and sales offices with operations in more than 50 countries, providing a local presence for customers and a global network to serve multi-location businesses and multi-national corporations. Prior to the completion of its merger with Anixter on June 22, 2020, as described in Note 6, "Acquisitions" of our Notes to Consolidated Financial Statements, WESCO had four operating segments that had been aggregated as one reportable segment. Effective on the date of acquisition, the Company added Anixter as a separate reportable segment for the quarterly period ended June 30, 2020. At the beginning of the third quarter of 2020, the Company identified new operating segments organized around three strategic business units consisting of Electrical & Electronic Solutions ("EES"), Communications & Security Solutions ("CSS") and Utility and Broadband Solutions ("UBS"). The applicable comparative financial information reported in the Company's previously issued consolidated financial statements for the years ended December 31, 2019 and 2018 have been recast in this Annual Report on Form 10-K to conform to the basis of the new segments. The following is a description of each of the Company's reportable segments and their business activities. Electrical & Electronic Solutions The EES segment supplies a broad range of products and supply chain solutions primarily to the Construction, Industrial and Original Equipment Manufacturer ("OEM") markets. Product categories include a broad range of electrical equipment and supplies, wire and cable, 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. EES includes the “Electrical and Electronic Solutions” business acquired from Anixter and the majority of the legacy WESCO industrial and construction businesses. Communications & Security Solutions The CSS segment supplies products and customized supply chain solutions to customers in a diverse range of industries including technology, finance, telecommunications service providers, transportation, education, government, healthcare and retail. CSS sells these products directly to end users or through various channels including data communications contractors, security, network, professional audio/visual and systems integrators. CSS has a broad product portfolio that includes copper and fiber optic cable and connectivity, access control, video surveillance, intrusion and fire/life safety, cabinets, power, cable management, wireless, professional audio/video, voice and networking switches and other ancillary products. CSS includes the “Network and Security Solutions” business acquired from Anixter and the legacy WESCO data communications and safety businesses. Utility & Broadband Solutions The UBS segment supplies electrical transmission and distribution products, power plant maintenance, repair and operations supplies and smart-grid products, and arranges materials management and procurement outsourcing for the power generation, power transmission and electricity distribution industries. The UBS segment combines the “Utility Power Solutions” business acquired from Anixter, the legacy WESCO utility business, the legacy WESCO broadband business and the legacy WESCO integrated supply business. 19 Table of Contents Overall Financial Performance Our 2020 financial results reflect the half year impact of the merger with Anixter, partially offset by unfavorable business conditions caused by the COVID-19 pandemic. Net sales increased $4.0 billion, or 47.5%, over the prior year. Cost of goods sold as a percentage of net sales and gross profit margin was 81.1% and 18.9%, respectively, for both 2020 and 2019. Cost of goods sold for 2020 includes merger-related fair value adjustments of $43.7 million, as well as an out-of-period adjustment of $18.9 million related to inventory absorption accounting. Adjusted for these amounts, gross profit as a percentage of net sales for 2020 was 19.4%. Selling, general and administrative ("SG&A") expenses as a percentage of net sales were 15.1% and 14.0% for 2020 and 2019, respectively. SG&A expenses for 2020 include merger-related costs of $132.2 million, as well as a gain on the sale of a U.S. operating branch of $19.8 million. Adjusted for these amounts, SG&A expenses for 2020 were $1.7 billion, or 14.2% of net sales, reflecting lower sales and the merger with Anixter, partially offset by cost reduction actions taken in response to the COVID-19 pandemic. SG&A expenses for 2019 include $3.1 million of merger-related costs. Operating income was $347.0 million for 2020, compared to $346.2 million for 2019. Operating income for 2020 includes the aforementioned merger-related costs, merger-related fair value adjustments, out-of-period adjustment, and gain on the sale of a U.S. operating branch. Adjusted for these items, operating profit was $522.0 million, or 4.2% of net sales. For 2019, operating profit adjusted for merger-related costs of $3.1 million was $349.3 million, or 4.2% of net sales. Net income attributable to common stockholders for 2020 and 2019 was $70.4 million and $223.4 million, respectively. As adjusted for the aforementioned items, including the related income tax effects, net income attributable to common stockholders was $203.6 million and $225.9 million for 2020 and 2019, respectively. Earnings per diluted share attributable to common stockholders was $1.51 in 2020, based on 46.6 million diluted shares, compared with earnings per diluted share of $5.14 in 2019, based on 43.5 million diluted shares. As adjusted, earnings per diluted share for 2020 and 2019 was $4.37 and $5.20, respectively. During 2020, the COVID-19 pandemic had a significant impact on our business and adversely impacted our results of operations. We expect these negative impacts to continue during the first quarter of 2021, and potentially longer, depending on the duration and severity of the pandemic, any resurgence of COVID-19, the development and availability of effective treatments and vaccines, and other future developments that are currently uncertain and cannot be predicted. Events and factors relating to the COVID-19 pandemic include limitations on the ability of our suppliers to manufacture or procure the products we sell or to meet delivery requirements and commitments; disruptions to our global supply chains; limitations on the ability of our employees to perform their work due to travel or other restrictions; limitations on the ability of carriers to deliver our products to our customers; limitations on the ability of our customers to conduct their business and purchase our products and services, or pay us on a timely basis; and disruptions to our customers’ purchasing patterns. In response to the COVID-19 pandemic, we have taken actions focused on protecting the health and safety of our employees, which is our top priority. We have restricted non-essential business travel, implemented remote work protocols, and instituted preventive measures at our facilities, including enhanced health and safety protocols, temperature screening and requiring face coverings for employees. The products and services that we provide are integral to the daily operations of our essential business customers and accordingly, we have taken actions to maintain the continuity of our operations in response to the pandemic. To date, our branch locations have remained operational consistent with governmental and public health authority directives. Beginning in March 2020, and continuing throughout 2020, we have taken, and continue to take, actions to reduce costs consistent with the expected decline in demand, including reductions in administrative expenses, payroll and benefits, and other spending across the company. Given the ongoing uncertainty regarding the duration, severity and scope of the COVID-19 pandemic, we are continuing to monitor the situation and may take further actions in light of future developments. We have experienced, and may continue to experience, reduced customer demand for certain of our products and services, including delays or cancellations of ongoing or anticipated projects due to our clients’, suppliers’ and other third parties’ diminished financial conditions. We cannot predict the timeframe for recovery of our customer’s demand for our products and services. The full extent to which the COVID-19 pandemic will continue to impact our business and financial results going forward is highly uncertain and will depend on many factors outside of our control, including the duration and scope of the crisis, the development and availability of effective treatments and vaccines, imposition of protective public safety measures, and the overall impact of the COVID-19 pandemic on the global economy and capital markets. Certain triggering events occurred during the first quarter of 2020, including the effect of the ongoing macroeconomic disruption and uncertainty caused by the COVID-19 pandemic, as well as the decline in our share price and market capitalization, both of which indicated that the carrying value of goodwill and indefinite-lived intangible assets may not be recoverable. Accordingly, we performed an interim test for impairment as of March 31, 2020. There were no impairment losses identified as a result of this interim test. 20 Table of Contents As disclosed in Note 2, "Accounting Policies" of our Notes to Consolidated Financial Statements, we identified new operating segments during the third quarter of 2020, which changed the composition of our reporting units. Accordingly, we reassigned goodwill to the new reporting units using a relative fair value allocation approach. We performed a goodwill impairment test immediately before and after we reorganized our reporting structure. Goodwill was tested for impairment on a reporting unit level and the evaluation involved comparing the fair value of each reporting unit to its carrying value. The fair values of our reporting units were determined using a discounted cash flow analysis, and consideration was also given to market multiples. In performing the quantitative assessments, management used expected operating margins supported by a combination of historical results, current forecasts, market data and recent economic events, which are categorized within Level 3 of the fair value hierarchy. We used a discount rate that reflects market participants' cost of capital. There were no impairment losses identified as a result of these tests. Although our reorganized reporting units had fair values that exceeded the respective carrying values, the EES reporting unit had an estimated fair value that exceeded its respective carrying value by less than 10%. As a result, the EES reporting unit is more susceptible to impairment risk from adverse macroeconomic conditions and if such conditions were to persist the underlying cash flows used to estimate fair value may impact the recoverability of goodwill. We performed our annual impairment tests of goodwill and indefinite-lived intangible assets during the fourth quarter of 2020 by assessing qualitative factors to determine whether it was more likely than not that the fair value of a reporting unit was less than its carrying amount. In performing this qualitative assessment, we assessed relevant events and circumstances, including macroeconomic conditions, industry and market considerations, cost factors, overall financial performance, other relevant events such as changes in key personnel, changes in the composition or carrying amount of the net assets of a reporting unit, and sustained decreases in share price. As a result of this assessment, we determined that the fair values of our reporting units continued to exceed the respective carrying amounts and, therefore, a quantitative impairment test was unnecessary. The determination of fair value of the reporting units involves significant management judgment, particularly as it relates to the underlying assumptions and factors around expected operating margins and discount rate. Due to the ongoing uncertainty surrounding the current macroeconomic environment and conditions in the markets in which we operate, as well as the risk that we may not fully realize cost savings, operating synergies or revenue improvement as a result of its acquisition of Anixter, there can be no assurance that the fair values of our reporting units will exceed their carrying values in the future, and that goodwill and indefinite-lived intangible assets will be fully recoverable. Cash Flow We generated $543.9 million in operating cash flow during 2020. Cash provided by operating activities included net income of $100.0 million, adjustments to net income totaling $113.7 million, and changes in assets and liabilities of $330.2 million. Investing activities included $3,707.6 million to fund a portion of the merger with Anixter, as described in Note 6, "Acquisitions" of our Notes to Consolidated Financial Statements, and $56.7 million of capital expenditures. Financing activities were comprised of $2,815.0 million of net proceeds from the issuance of senior unsecured notes to finance a portion of the merger with Anixter, borrowings and repayments of $1.2 billion and $948.0 million, respectively, related to our prior and new revolving credit facilities, as well as borrowings and repayments of $1.1 billion and $565.0 million, respectively, related to our prior and amended accounts receivable securitization facility. Financing activities for 2020 also included net repayments related to our various international lines of credit of $9.7 million, $80.2 million of debt issuance costs associated with financing the merger with Anixter, and $30.1 million of dividends paid to holders of our Series A Preferred Stock. 21 Free cash flow for the years ended December 31, 2020 and 2019 was $586.1 million and $180.3 million, respectively.The following table sets forth the components of free cash flow:Twelve Months Ended December 31, 20202019(In millions)Cash flow provided by operations$ 543.9 $ 224.4 Less: Capital expenditures (56.7) (44.1) Add: Merger-related expenditures 98.9 — Free cash flow$ 586.1 $ 180.3 Note: The table above reconciles cash flow provided by operations to free cash flow. Free cash flow is a non-GAAP financial measure of liquidity. Capital expenditures are deducted from operating cash flow to determine free cash flow. Free cash flow is available to fund investing and financing activities. For the twelve months ended December 31, 2020, the Company paid certain fees, expenses and other costs to consummate the merger with Anixter. Such expenditures have been added back to cash flow provided by operations to determine free cash flow for such period.Financing AvailabilityOn June 22, 2020, in connection with the Merger, we entered into a $1,100 million revolving credit facility (the “Revolving Credit Facility”), as a replacement of our existing revolving credit facility entered into on September 26, 2019. Also concurrent with the completion of the Merger, we amended our accounts receivable securitization facility (the “Receivables Facility”). On December 14, 2020, we amended the Revolving Credit Facility and Receivables Facility to permit an increase of the borrowing capacities under such facilities from $1,100 million to $1,200 million, and from $1,025 million to $1,200 million, respectively. Borrowings under the amended revolving credit and accounts receivable securitization facilities will be used to redeem our $500 million aggregate principal amount of 5.375% Senior Notes due 2021, as described in Note 19, "Subsequent Events" of the Notes to Consolidated Financial Statements.As of December 31, 2020, we had $801.5 million in total available borrowing capacity under our Revolving Credit Facility, which was comprised of $684.3 million of availability under the U.S. sub-facility and $117.3 million of availability under the Canadian sub-facility. Available borrowing capacity under our Receivables Facility was $75.0 million. The Revolving Credit Facility and the Receivables Facility mature in June 2025 and June 2023, respectively.Critical Accounting Policies and EstimatesOur 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 (U.S. GAAP). 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 rebate income, expected credit losses, inventories, insurance costs, goodwill and indefinite-lived intangible assets, 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 RecognitionOur revenue arrangements generally consist of single performance obligations to transfer a promised good or service, or a combination of goods and services. Revenue is measured as the amount of consideration we expect to receive in exchange for transferring goods or providing services. Revenue is recognized when control has transferred to the customer, which is generally when the product has shipped from our facility or directly from a supplier. However, transfer may occur at a later date depending on the agreed upon terms, such as delivery at the customer's designated location, or based on consignment terms. For products that ship directly from suppliers to customers, we act as the principal in the transaction and recognize revenue on a gross basis. When providing services, sales are recognized over time as control transfers to the customer, which occurs as services are rendered. We generally satisfy our performance obligations within a year or less.Table of Contents22Table of Contents We generally do not have significant financing terms associated with our contracts; payments are normally received within 60 days. There are generally no significant costs associated with obtaining customer contracts. We typically pass through warranties offered by manufacturers or suppliers to our customers. Sales taxes (and value added taxes in foreign jurisdictions) collected from customers and remitted to governmental authorities are excluded from net sales. Supplier Volume Rebates We receive volume rebates from certain suppliers based on contractual arrangements with such suppliers. Volume rebates are included within other accounts receivable in the Consolidated Balance Sheets, and represent the estimated amounts due to us based on forecasted purchases and the rebate provisions of the various supplier contracts. The corresponding volume rebate income is recorded as a reduction to cost of goods sold. Allowance for Expected Credit Losses We recognize expected credit losses resulting from the inability of our customers to make required payments through an allowance account that is measured each reporting date. We estimate credit losses over the life of our trade accounts receivable using a combination of historical loss data, current credit conditions, specific customer circumstances, and reasonable and supportable forecasts of future economic conditions. Inventories Inventories primarily consist of merchandise purchased for resale and are stated at the lower of cost and net realizable value. Cost is determined principally under the average cost method. We reduce the carrying value of our inventories at the earlier of identifying an item that is considered to be obsolete or in excess of supply relative to demand, or no movement in the past 15 months. Goodwill and Indefinite-Lived Intangible Assets Goodwill and indefinite-lived intangible assets are tested for impairment annually during the fourth quarter using information available at the end of September, or more frequently if triggering events occur, indicating that their carrying value may not be recoverable. We test for goodwill impairment on a reporting unit level. We first assess qualitative factors, including macroeconomic conditions, industry and market considerations, cost factors, overall financial performance, other relevant events such as changes in key personnel, changes in the composition or carrying amount of the net assets of a reporting unit, and sustained decreases in share price, to determine whether it is more likely than not that the fair value of our reporting units are less than their carrying values. If the qualitative assessment indicates that the fair values of our reporting units may not exceed their respective carrying values, then we perform a quantitative test for impairment by comparing the fair value of each reporting unit to its carrying value. We determine the fair values of our reporting units using a discounted cash flow analysis and consideration of market multiples. The discounted cash flow analysis uses certain assumptions, including expected operating margins supported by a combination of historical results, current forecasts, market data and recent economic events, which are categorized within Level 3 of the fair value hierarchy. We use a discount rate that reflects market participants' cost of capital. We evaluate the recoverability of indefinite-lived intangible assets using the relief-from-royalty method based on projected financial information. The determination of fair value involves significant management judgment, particularly as it relates to the underlying assumptions and factors around expected operating margins and discount rate. Management applies its best judgment when assessing the reasonableness of financial projections. Fair values are sensitive to changes in underlying assumptions and factors. As a result, there can be no assurance that the estimates and assumptions made for purposes of the annual goodwill and indefinite-lived intangible impairment tests will prove to be an accurate prediction of future results. 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 2 and 20 years, depending on the specific intangible asset. Income Taxes We account for income taxes under the asset and liability method, which requires the recognition of deferred income taxes for events that have future tax consequences. Under this method, deferred income taxes are recognized (using enacted tax laws and rates) based on the future income tax effects of differences in the carrying amounts of assets and liabilities for financial reporting and tax purposes. The effect of a tax rate change on deferred tax assets and liabilities is recognized in income in the period of change. 23 We recognize deferred tax assets at amounts that are expected to be realized. To make such determination, management evaluates all positive and negative evidence, including but not limited to, prior, current and future taxable income, tax planning strategies and future reversals of existing taxable temporary differences. A valuation allowance is recognized if it is “more-likely-than-not” that some or all of a deferred tax asset will not be realized. We regularly assess the realizability of deferred tax assets.We account for uncertainty in income taxes using a "more-likely-than-not" recognition threshold. Due to the subjectivity inherent in the evaluation of uncertain tax positions, the tax benefit ultimately recognized may materially differ from the estimate recognized in the consolidated financial statements. We recognize interest and penalties related to uncertain tax benefits as part of interest expense and income tax expense, respectively.The Tax Cuts and Jobs Act of 2017 (the “TCJA”) imposed a one-time tax on the deemed repatriation of undistributed foreign earnings (the “transition tax”). Except for a portion of foreign earnings previously taxed in the U.S. that can effectively be distributed without further material U.S. or foreign taxation, we continue to assert that the undistributed earnings of our foreign subsidiaries are indefinitely reinvested. To the extent the earnings of our foreign subsidiaries are distributed in the form of dividends, such earnings may be subject to additional taxes. We believe that we are able to maintain a sufficient level of liquidity for our domestic operations and commitments without incurring any material tax cost to repatriate cash held by our foreign subsidiaries.The provisions of the TCJA also introduced U.S. taxation on certain global intangible low-taxed income ("GILTI"). We have elected to account for GILTI tax as a component of income tax expense.Results of OperationsThe following table sets forth the percentage relationship to net sales of certain items in our Consolidated Statements of Income and Comprehensive Income for the periods presented:Year Ended December 31,202020192018Net sales 100.0 % 100.0 % 100.0 %Cost of goods sold (excluding depreciation and amortization) 81.1 81.1 80.8 Selling, general and administrative expenses 15.1 14.0 14.1 Depreciation and amortization 1.0 0.8 0.8 Income from operations 2.8 4.1 4.3 Interest expense, net 1.8 0.8 0.8 Other, net — (0.1) 0.1 Income before income taxes 1.0 3.4 3.4 Provision for income taxes 0.2 0.7 0.6 Net income attributable to WESCO International, Inc. 0.8 2.7 2.8 Preferred stock dividends 0.2 — — Net income attributable to common stockholders 0.6 % 2.7 % 2.8 %Table of Contents242020 Compared to 2019Net SalesThe following table sets forth net sales by segment for the periods presented:Year Ended December 31,(In thousands)20202019Growth (Decline)EES$ 5,479,760 $ 4,860,541 12.7 %CSS 3,323,264 909,496 265.4 %UBS 3,522,971 2,588,880 36.1 %Total net sales$ 12,325,995 $ 8,358,917 47.5 %Net sales were $12.3 billion in 2020 compared with $8.4 billion in 2019, an increase of 47.5% due to the merger with Anixter that was completed on June 22, 2020, partially offset by the impact of weakened demand from the COVID-19 pandemic.EES reported net sales of $5.5 billion in 2020, compared to $4.9 billion in 2019, an increase of 12.7%. The increase reflects the impact of the merger with Anixter, partially offset by weakened global demand in construction and industrial markets due to local and government shutdowns associated with the COVID-19 pandemic, as well as related disruptions to our suppliers and customers that have caused delays to projects.CSS reported net sales of $3.3 billion in 2020, compared to $0.9 billion in 2019, an increase of 265.4%. The increase reflects the impact of the merger with Anixter. The COVID-19 pandemic had an overall negative impact on CSS sales, although some customers and end users are considered essential businesses that saw increased demand.UBS reported net sales of $3.5 billion in 2020, compared to $2.6 billion in 2019, an increase of 36.1%. The increase reflects the impact of the merger with Anixter. The COVID-19 pandemic had a limited impact on UBS sales as the primary customers in this segment are public power and investor owned utilities, which are considered essential business and have maintained normal operations.Cost of Goods SoldCost of goods sold for 2020 was $10.0 billion, compared to $6.8 billion for 2019. Cost of goods sold as a percentage of net sales was 81.1% in both 2020 and 2019. Cost of goods sold for 2020 includes merger-related fair value adjustments of $43.7 million, as well as an out-of-period adjustment of $18.9 million related to inventory absorption accounting. Adjusted for these amounts, cost of goods sold as a percentage of net sales for 2020 was 80.6%.Selling, General and Administrative ExpensesSG&A expenses include costs associated with personnel, shipping and handling, travel, advertising, facilities, utilities and credit losses. SG&A expenses for 2020 were $1.9 billion, an increase of $685.9 million, or 58.5%, from 2019. SG&A expenses as a percentage of net sales increased to 15.1% in 2020 from 14.0% in 2019. SG&A expenses for 2020 include merger-related costs of $132.2 million, as well as a gain on the sale of a U.S. operating branch of $19.8 million. Adjusted for these amounts, SG&A expenses for 2020 were $1.7 billion, or 14.2% of net sales, reflecting the merger with Anixter and lower sales, partially offset by cost reduction actions taken in response to the COVID-19 pandemic. SG&A expenses for 2019 include $3.1 million of merger-related costs.SG&A payroll expenses for 2020 of $1.2 billion increased by $398.1 million compared to 2019 primarily due to the merger with Anixter. Excluding the impact of the merger, SG&A payroll expenses were down $35.0 million due to lower salaries and wages, variable compensation expense and benefit costs resulting from cost reduction actions associated with the COVID-19 pandemic.The remaining SG&A expenses for 2020 of $648.0 million increased by $287.8 million compared to 2019. The increase in the remaining SG&A expenses was primarily due to the impact of the merger with Anixter.Table of Contents25Depreciation and AmortizationDepreciation and amortization increased $59.5 million to $121.6 million in 2020, compared with $62.1 million in 2019. The current period includes $33.0 million of amortization attributable to identifiable intangible assets acquired in the merger with Anixter.Income from OperationsThe following tables set forth income from operations by segment for the periods presented:Year Ended December 31, 2020(In thousands)EESCSSUBSCorporateTotalIncome from operations$ 260,207 $ 217,163 $ 231,702 $ (362,034) $ 347,038 Year Ended December 31, 2019(In thousands)EESCSSUBSCorporateTotalIncome from operations$ 261,788 $ 43,835 $ 184,931 $ (144,337) $ 346,217 EES reported operating profit of $260.2 million in 2020, compared to $261.8 million in 2019. The decrease reflects lower demand caused by the COVID-19 pandemic, offset by the merger with Anixter and cost reduction actions taken in response to the lower demand.CSS reported operating profit of $217.2 million in 2020, compared to $43.8 million in 2019. The increase reflects the impact of the merger with Anixter. The benefits of cost reduction actions taken in response to the COVID-19 pandemic, as well as operating synergies resulting from the business combination, had a favorable impact on operating profit.UBS reported operating profit of $231.7 million in 2020, compared to $184.9 million in 2019. The increase reflects the impact of the merger with Anixter. The impact of the COVID-19 pandemic on the UBS segment was limited as many of its primary customers are public power and investor owned utilities that are considered essential businesses and have maintained normal operations.Interest Expense, netInterest expense, net totaled $226.6 million in 2020, compared with $65.7 million in 2019, an increase of 244.8%. The increase in interest expense was driven by financing activity related to the Anixter merger.Other, netOther non-operating income ("other, net") totaled $2.4 million in 2020, compared to $1.6 million in 2019.Income TaxesOur effective tax rate was 18.6% in 2020 compared to 21.2% in 2019. The lower effective tax rate in the current year was primarily due to one-time impacts from the merger with Anixter.Net Income and Earnings per ShareNet income for 2020 was $100.0 million, compared to $222.2 million for 2019.Net loss attributable to noncontrolling interests in 2020 and 2019 was $0.5 million and $1.2 million, respectively.Preferred stock dividends expense of $30.1 million in 2020 relates to the fixed-rate reset cumulative perpetual preferred stock, Series A, that was issued in connection with the merger.Net income and earnings per diluted share attributable to common stockholders were $70.4 million and $1.51 per diluted share, respectively, in 2020, compared with $223.4 million and $5.14 per diluted share, respectively, in 2019. Adjusted for the items mentioned above, net income and earnings per diluted share attributable to common stockholders were $203.6 million and $4.37 per diluted share, respectively, for the year ended December 31, 2020. Adjusted net income and adjusted earnings per diluted share attributable to common stockholders were $225.9 million and $5.20 per diluted share, respectively, for the year ended December 31, 2019.Table of Contents26The following tables reconcile income from operations, provision for income taxes and earnings per diluted share to adjusted net income from operations, adjusted provision for income taxes and adjusted earnings per diluted share, which are non-GAAP financial measures, for the periods presented:Year Ended December 31,Adjusted Income from Operations:20202019(In thousands)Income from operations$ 347,038 $ 346,217 Merger-related costs 132,236 3,130 Merger-related fair value adjustments 43,693 — Out-of-period adjustment 18,852 — Gain on sale of asset (19,816) — Adjusted income from operations$ 522,003 $ 349,347 Year Ended December 31,Adjusted Provision for Income Taxes:20202019(In thousands)Provision for income taxes$ 22,803 $ 59,863 Income tax effect of adjustments to income from operations(1) 41,817 664 Adjusted provision for income taxes$ 64,620 $ 60,527 (1) The adjustments to income from operations have been tax effected at a rate of 23.9% and 21.2% for the years ended December 31, 2020 and December 31, 2019, respectively.Year Ended December 31,Adjusted Earnings Per Diluted Share:20202019(In thousands, except per share data)Adjusted income from operations$ 522,003 $ 349,347 Interest expense, net 226,591 65,710 Other, net (2,395) (1,554) Adjusted income before income taxes 297,807 285,191 Adjusted provision for income taxes 64,620 60,527 Adjusted net income 233,187 224,664 Net loss attributable to noncontrolling interests (521) (1,228) Adjusted net income attributable to WESCO International, Inc. 233,708 225,892 Preferred stock dividends 30,139 — Adjusted net income attributable to common stockholders$ 203,569 $ 225,892 Diluted shares 46,625 43,487 Adjusted earnings per diluted share$ 4.37 $ 5.20 Note: For the twelve months ended December 31, 2020, income from operations, the provision for income taxes and earnings per diluted share have been adjusted to exclude merger-related costs and fair value adjustments, an out-of-period adjustment related to inventory absorption accounting, gain on sale of a U.S. operating branch, and the related income tax effects. For the twelve months ended December 31, 2019, income from operations, the provision for income taxes and earnings per diluted share have been adjusted to exclude merger-related costs and the related income tax effects. These non-GAAP financial measures provide a better understanding of the Company's financial results on a comparable basis.Table of Contents27EBITDA, Adjusted EBITDA and Adjusted EBITDA margin %The following tables reconcile net income attributable to common stockholders to EBITDA, adjusted EBITDA and adjusted EBITDA margin % by segment, which are non-GAAP financial measures, for the periods presented:Year Ended December 31, 2020(In thousands)EESCSSUBSCorporateTotalNet income attributable to common stockholders$ 262,829 $ 217,211 $ 231,678 $ (641,297) $ 70,421 Net loss attributable to noncontrolling interests (842) — — 321 (521) Preferred stock dividends — — — 30,139 30,139 Provision for income taxes — — — 22,803 22,803 Interest expense, net — — — 226,591 226,591 Depreciation and amortization 35,811 37,765 22,380 25,644 121,600 EBITDA$ 297,798 $ 254,976 $ 254,058 $ (335,799) $ 471,033 Other, net (1,780) (48) 24 (591) (2,395) Stock-based compensation expense(1) 991 59 298 15,366 16,714 Merger-related costs — — — 132,236 132,236 Merger-related fair value adjustments 15,411 22,000 6,282 — 43,693 Out-of-period adjustment 2,325 12,634 3,893 — 18,852 Gain on sale of asset (19,816) — — — (19,816) Adjusted EBITDA$ 294,929 $ 289,621 $ 264,555 $ (188,788) $ 660,317 Adjusted EBITDA margin % 5.4 % 8.7 % 7.5 % 5.4 %(1) Stock-based compensation expense in the calculation of adjusted EBITDA for the year ended December 31, 2020 excludes $2.6 million as this amount is included in merger-related costs.Year Ended December 31, 2019(In thousands)EESCSSUBSCorporateTotalNet income attributable to common stockholders$ 264,570 $ 43,835 $ 184,931 $ (269,910) $ 223,426 Net loss attributable to noncontrolling interests (1,228) — — — (1,228) Provision for income taxes — — — 59,863 59,863 Interest expense, net — — — 65,710 65,710 Depreciation and amortization 28,569 7,155 13,583 12,800 62,107 EBITDA$ 291,911 $ 50,990 $ 198,514 $ (131,537) $ 409,878 Other, net (1,554) — — — (1,554) Stock-based compensation expense 1,116 77 231 17,638 19,062 Merger-related costs — — — 3,130 3,130 Adjusted EBITDA$ 291,473 $ 51,067 $ 198,745 $ (110,769) $ 430,516 Adjusted EBITDA margin % 6.0 % 5.6 % 7.7 % 5.2 %Note: EBITDA, Adjusted EBITDA and Adjusted EBITDA margin % are non-GAAP financial measures that provide indicators of our performance and ability to meet debt service requirements. EBITDA is defined as earnings before interest, taxes, depreciation and amortization. Adjusted EBITDA is defined as EBITDA before other non-operating expenses ("other, net"), non-cash stock-based compensation, merger-related costs and fair value adjustments, an out-of-period adjustment related to inventory absorption accounting, and gain on sale of a U.S. operating branch. Adjusted EBITDA margin % is calculated by dividing Adjusted EBITDA by net sales.Adjusted EBITDA for EES was $294.9 million in 2020, or 5.4% of net sales, compared to $291.5 million in 2019, or 6.0% of net sales.Adjusted EBITDA for CSS was $289.6 million in 2020, or 8.7% of net sales, compared to $51.1 million in 2019, or 5.6% of net sales.Adjusted EBITDA for UBS was $264.6 million in 2020, or 7.5% of net sales, compared to $198.7 million in 2019, or 7.7% of net sales.Table of Contents282019 Compared to 2018Net SalesThe following table sets forth net sales by segment for the periods presented:Year Ended December 31,(In thousands)20192018Growth (Decline)EES$ 4,860,541 $ 4,878,836 (0.4) %CSS 909,496 857,481 6.1 %UBS 2,588,880 2,440,284 6.1 %Total net sales$ 8,358,917 $ 8,176,601 2.2 %Net sales were $8.4 billion in 2019 compared with $8.2 billion in 2018, an increase of 2.2%.EES reported net sales of $4.9 billion in both 2019 and 2018. The moderate decline of 0.4% reflects skilled labor constraints and overall uncertainty related to the macroeconomic environment and international trade concerns.CSS reported net sales of $909.5 million in 2019, compared to $857.5 million in 2018. The increase of 6.1% reflects growth in the data communications and security categories.UBS reported net sales of $2.6 billion in 2019, compared to $2.4 billion in 2018. The increase of 6.1% reflects the benefit of secular trends in the utility sector, including grid hardening and reliability projects, construction market growth, higher industrial output and increased demand for renewable energy.Cost of Goods SoldCost of goods sold for 2019 was $6.8 billion, compared to $6.6 billion for 2018. Cost of goods sold as a percentage of net sales was 81.1% and 80.8% in 2019 and 2018, respectively. Cost of goods sold as a percentage of net sales was negatively impacted by a challenging pricing environment, as well as business mix.Selling, General and Administrative ExpensesSG&A expenses include costs associated with personnel, shipping and handling, travel, advertising, facilities, utilities and credit losses. SG&A expenses for 2019 were $1.2 billion, an increase of $21.2 million, or 1.8%, from 2018. SG&A expenses as a percentage of net sales improved to 14.0% in 2019 from 14.1% in 2018. The increase in SG&A expenses reflects the impact of the SLS acquisition and merger-related costs, partially offset by lower variable payroll expenses and the absence of a bad debt charge that was recorded in the prior year.SG&A payroll expenses for 2019 of $812.9 million increased by $8.7 million compared to 2018. The increase in SG&A payroll expenses was primarily due to wage inflation and the impact of the SLS acquisition, which were partially offset by lower variable compensation expense and benefit costs.The remaining SG&A expenses for 2019 of $360.2 million increased by $12.4 million compared to 2018. The increase in the remaining SG&A expenses was primarily due to the impact of the SLS acquisition.Depreciation and AmortizationDepreciation and amortization decreased $0.9 million to $62.1 million in 2019, compared with $63.0 million in 2018.Table of Contents29Income from OperationsThe following tables set forth income from operations by segment for the periods presented:Year Ended December 31, 2019(In thousands)EESCSSUBSCorporateTotalIncome from operations$ 261,788 $ 43,835 $ 184,931 $ (144,337) $ 346,217 Year Ended December 31, 2018(In thousands)EESCSSUBSCorporateTotalIncome from operations$ 289,065 $ 34,592 $ 165,149 $ (136,366) $ 352,440 EES reported operating profit of $261.8 million in 2019, compared to $289.1 million in 2018. The decrease in operating profit is due to the impact of higher SG&A expenses resulting from the SLS acquisition.CSS reported operating profit of $43.8 million in 2019, compared to $34.6 million in 2018. The increase in operating profit is due to higher sales, as described above.UBS reported operating profit of $184.9 million in 2019, compared to $165.1 million in 2018. The increase in operating profit is due to higher sales, as described above.Interest Expense, netInterest expense, net totaled $65.7 million in 2019, compared with $68.7 million in 2018, a decrease of 4.3%. The resolution of transfer pricing matters associated with the Canadian taxing authority resulted in non-cash interest income of $3.7 million for the year ended December 31, 2019.Other, netOther non-operating income ("other, net") totaled $1.6 million in 2019, compared to expense of $2.8 million in 2018. For the year ended December 31, 2018, other non-operating expense includes a foreign exchange loss of $3.0 million from the remeasurement of a financial instrument, as well as accelerated amortization of debt discount and debt issuance costs totaling $0.8 million due to early repayments of our then outstanding term loan facility.Income TaxesOur effective tax rate was 21.2% in 2019 compared to 19.8% in 2018. The higher effective tax rate in 2019 as compared to the prior year was primarily due to the full application of the international provisions of U.S. tax reform.Net Income and Earnings per ShareNet income decreased by $3.2 million, or 1.4%, to $222.2 million in 2019, compared to $225.4 million in 2018.Net loss attributable to noncontrolling interests in 2019 and 2018 was $1.2 million and $2.0 million, respectively.Net income and earnings per diluted share attributable to common stockholders were $223.4 million and $5.14 per share, respectively, in 2019, compared with $227.3 million and $4.82 per share, respectively, in 2018. Adjusted net income and earnings per diluted share attributable to common stockholders were $225.9 million and $5.20 per share, respectively, for the year ended December 31, 2019.Table of Contents30The following tables reconcile income from operations, provision for income taxes and earnings per diluted share to adjusted net income from operations, adjusted provision for income taxes and adjusted earnings per diluted share, which are non-GAAP financial measures, for the periods presented:Year Ended December 31,Adjusted Income from Operations:20192018(In thousands)Income from operations$ 346,217 $ 352,440 Merger-related costs 3,130 — Adjusted income from operations$ 349,347 $ 352,440 Year Ended December 31,Adjusted Provision for Income Taxes:20192018(In thousands)Provision for income taxes$ 59,863 $ 55,670 Income tax effect of adjustments to income from operations(1) 664 — Adjusted provision for income taxes$ 60,527 $ 55,670 (1) The adjustment to income from operations has been tax effected at a rate of 21.2% for the year ended December 31, 2019.Year Ended December 31,Adjusted Earnings Per Diluted Share:20192018(In thousands, except per share data)Adjusted income from operations$ 349,347 $ 352,440 Interest expense, net 65,710 68,661 Other, net (1,554) 2,754 Adjusted income before income taxes 285,191 281,025 Adjusted provision for income taxes 60,527 55,670 Adjusted net income 224,664 225,355 Net loss attributable to noncontrolling interests (1,228) (1,988) Adjusted net income attributable to WESCO International, Inc.$ 225,892 $ 227,343 Diluted shares 43,487 47,199 Adjusted earnings per diluted share$ 5.20 $ 4.82 Note: Income from operations, the provision for income taxes and earnings per diluted share for the year ended December 31, 2019 are adjusted to exclude merger-related costs and the related income tax effect. These non-GAAP financial measures provide a better understanding of our financial results on a comparable basis.Table of Contents31EBITDA, Adjusted EBITDA and Adjusted EBITDA margin %The following tables reconcile net income attributable to common stockholders to EBITDA, adjusted EBITDA and adjusted EBITDA margin % by segment, which are non-GAAP financial measures, for the periods presented:Year Ended December 31, 2019(In thousands)EESCSSUBSCorporateTotalNet income attributable to common stockholders$ 264,570 $ 43,835 $ 184,931 $ (269,910) $ 223,426 Net loss attributable to noncontrolling interests (1,228) — — — (1,228) Provision for income taxes — — — 59,863 59,863 Interest expense, net — — — 65,710 65,710 Depreciation and amortization 28,569 7,155 13,583 12,800 62,107 EBITDA$ 291,911 $ 50,990 $ 198,514 $ (131,537) $ 409,878 Other, net (1,554) — — — (1,554) Stock-based compensation expense 1,116 77 231 17,638 19,062 Merger-related costs — — — 3,130 3,130 Adjusted EBITDA$ 291,473 $ 51,067 $ 198,745 $ (110,769) $ 430,516 Adjusted EBITDA margin % 6.0 % 5.6 % 7.7 % 5.2 %Year Ended December 31, 2018(In thousands)EESCSSUBSCorporateTotalNet income attributable to common stockholders$ 288,299 $ 34,592 $ 165,149 $ (260,697) $ 227,343 Net loss attributable to noncontrolling interests (1,988) — — — (1,988) Provision for income taxes — — — 55,670 55,670 Interest expense, net — — — 68,661 68,661 Depreciation and amortization 30,198 7,413 13,447 11,939 62,997 EBITDA$ 316,509 $ 42,005 $ 178,596 $ (124,427) $ 412,683 Other, net 2,754 — — — 2,754 Stock-based compensation expense 605 116 351 15,373 16,445 Adjusted EBITDA$ 319,868 $ 42,121 $ 178,947 $ (109,054) $ 431,882 Adjusted EBITDA margin % 6.6 % 4.9 % 7.3 % 5.3 %Note: EBITDA, Adjusted EBITDA and Adjusted EBITDA margin % are non-GAAP financial measures that provide indicators of our performance and ability to meet debt service requirements. EBITDA is defined as earnings before interest, taxes, depreciation and amortization. Adjusted EBITDA is defined as EBITDA before other non-operating expenses ("other, net"), non-cash stock-based compensation, and costs associated with the merger with Anixter. Adjusted EBITDA margin % is calculated by dividing Adjusted EBITDA by net sales.Adjusted EBITDA for EES was $291.5 million in 2019, or 6.0% of net sales, compared to $319.9 million in 2018, or 6.6% of net sales.Adjusted EBITDA for CSS was $51.1 million in 2019, or 5.6% of net sales, compared to $42.1 million in 2018, or 4.9% of net sales.Adjusted EBITDA for UBS was $198.7 million in 2019, or 7.7% of net sales, compared to $178.9 million in 2018, or 7.3% of net sales.Liquidity and Capital ResourcesTotal assets were $11.9 billion and $5.0 billion at December 31, 2020 and 2019, respectively. Total liabilities at December 31, 2020 and 2019 were $8.5 billion and $2.8 billion, respectively. Total stockholders’ equity was $3.3 billion and $2.3 billion at December 31, 2020 and 2019, respectively.Table of Contents32EBITDA, Adjusted EBITDA and Adjusted EBITDA margin %The following tables reconcile net income attributable to common stockholders to EBITDA, adjusted EBITDA and adjusted EBITDA margin % by segment, which are non-GAAP financial measures, for the periods presented:Year Ended December 31, 2019(In thousands)EESCSSUBSCorporateTotalNet income attributable to common stockholders$ 264,570 $ 43,835 $ 184,931 $ (269,910) $ 223,426 Net loss attributable to noncontrolling interests (1,228) — — — (1,228) Provision for income taxes — — — 59,863 59,863 Interest expense, net — — — 65,710 65,710 Depreciation and amortization 28,569 7,155 13,583 12,800 62,107 EBITDA$ 291,911 $ 50,990 $ 198,514 $ (131,537) $ 409,878 Other, net (1,554) — — — (1,554) Stock-based compensation expense 1,116 77 231 17,638 19,062 Merger-related costs — — — 3,130 3,130 Adjusted EBITDA$ 291,473 $ 51,067 $ 198,745 $ (110,769) $ 430,516 Adjusted EBITDA margin % 6.0 % 5.6 % 7.7 % 5.2 %Year Ended December 31, 2018(In thousands)EESCSSUBSCorporateTotalNet income attributable to common stockholders$ 288,299 $ 34,592 $ 165,149 $ (260,697) $ 227,343 Net loss attributable to noncontrolling interests (1,988) — — — (1,988) Provision for income taxes — — — 55,670 55,670 Interest expense, net — — — 68,661 68,661 Depreciation and amortization 30,198 7,413 13,447 11,939 62,997 EBITDA$ 316,509 $ 42,005 $ 178,596 $ (124,427) $ 412,683 Other, net 2,754 — — — 2,754 Stock-based compensation expense 605 116 351 15,373 16,445 Adjusted EBITDA$ 319,868 $ 42,121 $ 178,947 $ (109,054) $ 431,882 Adjusted EBITDA margin % 6.6 % 4.9 % 7.3 % 5.3 %Note: EBITDA, Adjusted EBITDA and Adjusted EBITDA margin % are non-GAAP financial measures that provide indicators of our performance and ability to meet debt service requirements. EBITDA is defined as earnings before interest, taxes, depreciation and amortization. Adjusted EBITDA is defined as EBITDA before other non-operating expenses ("other, net"), non-cash stock-based compensation, and costs associated with the merger with Anixter. Adjusted EBITDA margin % is calculated by dividing Adjusted EBITDA by net sales.Adjusted EBITDA for EES was $291.5 million in 2019, or 6.0% of net sales, compared to $319.9 million in 2018, or 6.6% of net sales.Adjusted EBITDA for CSS was $51.1 million in 2019, or 5.6% of net sales, compared to $42.1 million in 2018, or 4.9% of net sales.Adjusted EBITDA for UBS was $198.7 million in 2019, or 7.7% of net sales, compared to $178.9 million in 2018, or 7.3% of net sales.Liquidity and Capital ResourcesTotal assets were $11.9 billion and $5.0 billion at December 31, 2020 and 2019, respectively. Total liabilities at December 31, 2020 and 2019 were $8.5 billion and $2.8 billion, respectively. Total stockholders’ equity was $3.3 billion and $2.3 billion at December 31, 2020 and 2019, respectively.Table of Contents32Table of Contents In connection with the Merger, we obtained debt financing comprised of senior unsecured notes in aggregate principal amount of $2.8 billion, a new senior secured asset-based revolving credit facility in aggregate principal amount of $1.1 billion, and an amended accounts receivable securitization facility with a purchase limit up to $1.0 billion. Prior to the completion of the Merger, we also simultaneously entered into tender offers and consent solicitations with respect to Anixter's 5.50% Senior Notes due 2023 and 6.00% Senior Notes due 2025 (collectively, the "Anixter Senior Notes"). Upon the expiration and settlement of the tender offers and consent solicitations, $62.8 million in aggregate principal amount of the Anixter Senior Notes remain outstanding. We used the net proceeds from the issuance of senior unsecured notes, together with borrowings under the new senior secured asset-based revolving credit facility and amended accounts receivable securitization facility, as well as existing cash on hand to consummate the merger. Since the acquisition, we have reduced our outstanding indebtedness by approximately $205 million. Over the next several quarters, it is expected that excess liquidity will be directed primarily at debt reduction and merger-related integration activities, and we expect to maintain sufficient liquidity through our credit facilities and cash balances. We expect to spend between $100 million to $120 million on capital expenditures in 2021, much of which will be invested to align the systems of our legacy businesses and enhance our digital tools. We monitor the depository institutions that hold our cash and cash equivalents on a regular basis, and we believe that we have placed our deposits with creditworthy financial institutions. We also communicate on a regular basis with our lenders regarding our financial and working capital performance, liquidity position and financial leverage. Our financial leverage ratio was 5.3 as of December 31, 2020, on a pro forma basis, and 2.7 as of December 31, 2019, as reported. In addition, we are in compliance with all covenants and restrictions contained in our debt agreements as of December 31, 2020. 34 The following table sets forth our outstanding indebtedness:As of December 31,20202019(In millions)International lines of credit$ 29.6 $ 26.3 Accounts Receivable Securitization Facility 950.0 415.0 Revolving Credit Facility 250.0 — 5.375% Senior Notes due 2021 500.0 500.0 5.50% Senior Notes due 2023 58.6 — 5.375% Senior Notes due 2024 350.0 350.0 6.00% Senior Notes due 2025 4.2 — 7.125% Senior Notes due 2025 1,500.0 — 7.250% Senior Notes due 2028, less debt discount of $9.3 1,315.7 — Finance lease obligations 17.9 1.3 Total debt 4,976.0 1,292.6 Plus: Fair value adjustment to the Anixter Senior Notes 1.7 — Less: Unamortized debt issuance costs (78.9) (8.8) Less: Short-term debt and current portion of long-term debt (528.8) (26.7) Total long-term debt$ 4,370.0 $ 1,257.1 The required annual principal repayments for all indebtedness for the next five years and thereafter, as of December 31, 2020, is set forth in the following table:(In millions) 2021$ 529.9 2022 4.1 2023 1,016.3 2024 352.2 2025 1,756.1 Thereafter 1,326.7 Total payments on debt$ 4,985.3 Debt discount (9.3) Total debt$ 4,976.0 Our liquidity needs generally arise from fluctuations in our working capital requirements, capital expenditures, acquisitions and debt service obligations. As of December 31, 2020, we had $801.5 million in available borrowing capacity under our Revolving Credit Facility and $75.0 million in available borrowing capacity under our Receivables Facility, which combined with available cash of $259.5 million, provided liquidity of $1.1 billion. Cash included in our determination of liquidity represents cash in certain deposit and interest bearing investment accounts. We believe cash provided by operations and financing activities will be adequate to cover our operational and business needs for at least the next twelve months. In addition, we regularly review our mix of fixed versus variable rate debt, and we may, from time to time, issue or retire borrowings and/or refinance existing debt in an effort to mitigate the impact of interest rate and foreign exchange rate fluctuations, and to maintain a cost-effective capital structure consistent with our anticipated capital requirements. At December 31, 2020, approximately 75% of our debt portfolio was comprised of fixed rate debt.Table of Contents33Table of Contents In connection with the Merger, we obtained debt financing comprised of senior unsecured notes in aggregate principal amount of $2.8 billion, a new senior secured asset-based revolving credit facility in aggregate principal amount of $1.1 billion, and an amended accounts receivable securitization facility with a purchase limit up to $1.0 billion. Prior to the completion of the Merger, we also simultaneously entered into tender offers and consent solicitations with respect to Anixter's 5.50% Senior Notes due 2023 and 6.00% Senior Notes due 2025 (collectively, the "Anixter Senior Notes"). Upon the expiration and settlement of the tender offers and consent solicitations, $62.8 million in aggregate principal amount of the Anixter Senior Notes remain outstanding. We used the net proceeds from the issuance of senior unsecured notes, together with borrowings under the new senior secured asset-based revolving credit facility and amended accounts receivable securitization facility, as well as existing cash on hand to consummate the merger. Since the acquisition, we have reduced our outstanding indebtedness by approximately $205 million. Over the next several quarters, it is expected that excess liquidity will be directed primarily at debt reduction and merger-related integration activities, and we expect to maintain sufficient liquidity through our credit facilities and cash balances. We expect to spend between $100 million to $120 million on capital expenditures in 2021, much of which will be invested to align the systems of our legacy businesses and enhance our digital tools. We monitor the depository institutions that hold our cash and cash equivalents on a regular basis, and we believe that we have placed our deposits with creditworthy financial institutions. We also communicate on a regular basis with our lenders regarding our financial and working capital performance, liquidity position and financial leverage. Our financial leverage ratio was 5.3 as of December 31, 2020, on a pro forma basis, and 2.7 as of December 31, 2019, as reported. In addition, we are in compliance with all covenants and restrictions contained in our debt agreements as of December 31, 2020. 34 The following table sets forth our financial leverage ratio, which is a non-GAAP financial measure, for the periods presented:Pro Forma(1)ReportedTwelve months endedDecember 31, 2020December 31, 2019(In millions of dollars, except ratios)Net income attributable to common stockholders$ 115.6 $ 223.4 Net loss attributable to noncontrolling interests (0.5) (1.2) Preferred stock dividends 30.1 — Provision for income taxes 55.7 59.9 Interest expense, net 255.8 65.7 Depreciation and amortization 153.5 62.1 EBITDA$ 610.2 $ 409.9 Other, net 4.6 (1.6) Stock-based compensation 34.7 19.1 Merger-related costs and fair value adjustments 206.7 3.1 Out-of-period adjustment 18.9 — Gain on sale of asset (19.8) — Adjusted EBITDA$ 855.3 $ 430.5 December 31, 2020December 31, 2019Short-term borrowings and current portion of long-term debt$ 528.8 $ 26.7 Long-term debt 4,370.0 1,257.1 Debt discount and debt issuance costs(2) 88.2 8.8 Fair value adjustments to Anixter Notes due 2023 and 2025(2) (1.7) — Total debt 4,985.3 1,292.6 Less: cash and cash equivalents 449.1 150.9 Total debt, net of cash$ 4,536.2 $ 1,141.7 Financial leverage ratio 5.3 2.7 (1) Pro forma EBITDA and pro forma adjusted EBITDA for the trailing twelve month period ended December 31, 2020 gives effect to the combination of WESCO and Anixter as if it had occurred at the beginning of such period.(2) Long-term debt is presented in the consolidated balance sheets net of debt discount and debt issuance costs, and include adjustments to record the long-term debt assumed in the merger with Anixter at its acquisition date fair value.Note: Financial leverage is a non-GAAP financial measure of the use of debt. Financial leverage ratio is calculated by dividing total debt, excluding debt discount, debt issuance costs and fair value adjustments, less cash and cash equivalents, by adjusted EBITDA. EBITDA is defined as the trailing twelve months earnings before interest, taxes, depreciation and amortization. Adjusted EBITDA is defined as the trailing twelve months EBITDA before foreign exchange and other non-operating expenses, non-cash stock-based compensation, merger-related costs and fair value adjustments, an out-of-period adjustment related to inventory absorption accounting, and gain on sale of a U.S.operating branch. Pro forma financial leverage ratio is calculated by dividing total debt, excluding debt discount and debt issuance costs, less cash and cash equivalents, by pro forma adjusted EBITDA.Undistributed earnings of our foreign subsidiaries amounted to approximately $1,835.0 million at December 31, 2020. Most of these earnings have been taxed in the U.S. under either the one-time transition tax or the GILTI tax regime imposed by the TCJA. Except for a portion of foreign earnings previously taxed in the U.S. that can effectively be distributed without further material U.S. or foreign taxation, we continue to assert that the undistributed earnings of our foreign subsidiaries are indefinitely reinvested. To the extent the earnings of our foreign subsidiaries are distributed in the form of dividends, such earnings may be subject to additional taxes. We estimate that additional taxes of approximately $75.0 million would be payable upon the remittance of foreign earnings as dividends at December 31, 2020, based upon the laws in effect on that date. We Table of Contents35Table of Contents believe that we are able to maintain a sufficient level of liquidity for our domestic operations and commitments without incurring any material tax cost to repatriate cash held by our foreign subsidiaries. We finance our operating and investing needs as follows: International Lines of Credit Certain foreign subsidiaries of WESCO have entered into uncommitted lines of credit, some of which are overdraft facilities, to support local operations. The maximum borrowing limit varies by facility and ranges between $2.0 million and $31.0 million. The international lines of credit generally are renewable on an annual basis and certain facilities are fully and unconditionally guaranteed by WESCO Distribution. Accordingly, certain borrowings under these lines directly reduce availability under the Revolving Credit Facility. The applicable interest rate for borrowings under these lines of credit varies by country and is governed by the applicable loan agreement. The average interest rate for these facilities was 3.4% and 6.3% at December 31, 2020 and 2019, respectively. Accounts Receivable Securitization Facility On June 22, 2020, WESCO Distribution amended its Receivables Facility pursuant to the terms and conditions of a Fifth Amended and Restated Receivables Purchase Agreement (the “Receivables Purchase Agreement”), by and among WESCO Receivables Corp. (“WESCO Receivables”), WESCO Distribution, the various purchaser groups from time to time party thereto and PNC Bank, National Association, as Administrator. The Receivables Purchase Agreement amends and restates the amended and restated receivables purchase agreement entered into on September 24, 2015 (the “Existing Receivables Purchase Agreement”). The Receivables Purchase Agreement, among other things, increased the purchase limit under the Existing Receivables Purchase Agreement from $600 million to $1,025 million, with the opportunity to exercise an accordion feature that permits increases in the purchase limit of up to $375 million, extended the term of the Receivables Facility to June 22, 2023 and added and amended certain defined terms. Borrowings under the Receivables Facility bear interest at the 30-day LIBOR rate, with a LIBOR floor of 0.5%, plus applicable spreads. The interest rate spread of the Receivables Facility increased from 0.95% to 1.20%. The commitment fee remained unchanged at 0.45%. On December 14, 2020, WESCO Distribution amended its Receivables Facility pursuant to the terms and conditions of a First Amendment to the Fifth Amended and Restated Receivables Purchase Agreement (the “Receivables Amendment”). The Receivables Amendment amends the Receivables Purchase Agreement and permits an increase to the purchase limit from $1,025 million to $1,200 million. The maturity date, interest rate spread, and commitment fee of the Receivables Facility remain unchanged. Under the Receivables Facility, WESCO sells, 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 financial institutions for cash while maintaining a subordinated undivided interest in the receivables, in the form of overcollateralization. Since WESCO maintains control of the transferred receivables, 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. 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, 2020 and 2019, accounts receivable eligible for securitization totaled $1,476.1 million and $809.5 million, respectively. The Consolidated Balance Sheets as of December 31, 2020 and 2019 include $950.0 million and $415.0 million, respectively, of accounts receivable balances legally sold to third parties, as well as borrowings for equal amounts. At December 31, 2020, the interest rate for this facility was approximately 1.6%. Revolving Credit Facility On June 22, 2020, WESCO, WESCO Distribution and certain other subsidiaries of WESCO entered into a $1,100 million revolving credit facility (the “Revolving Credit Facility”), as a replacement of WESCO Distribution’s revolving credit facility entered into on September 26, 2019, pursuant to the terms and conditions of a Fourth Amended and Restated Credit Agreement, dated as of June 22, 2020 (the “Revolving Credit Agreement”), among WESCO Distribution, the other U.S. borrowers party thereto (collectively, the “U.S. Borrowers”), WESCO Distribution Canada LP (“WESCO Canada”), the other Canadian borrowers party thereto (collectively, the “Canadian Borrowers”), WESCO, the lenders party thereto and Barclays Bank PLC, as the administrative agent. The Revolving Credit Facility contains a letter of credit sub-facility of up to $175 million and an accordion feature allowing WESCO Distribution to request increases to the borrowing commitments under the Revolving Credit Facility of up to $500 million in the aggregate, subject to customary conditions. The Revolving Credit Facility matures in June 2025. 36 Table of Contents On December 14, 2020, WESCO Distribution and certain other subsidiaries of WESCO entered into an amendment to the Revolving Credit Facility pursuant to the terms and conditions of a First Amendment to Fourth Amended and Restated Credit Agreement, dated as of December 14, 2020 (the “Revolver Amendment”), among WESCO Distribution, the other U.S. borrowers party thereto, WESCO Distribution Canada LP, the other Canadian borrowers party thereto, WESCO, the lenders party thereto and Barclays Bank PLC, as administrative agent. The Revolver Amendment permits an increase to the revolving commitments from $1,100 million to $1,200 million and amends certain other defined terms. No other material terms were changed. The obligations of WESCO Distribution and the other U.S. Borrowers under the Revolving Credit Facility have been guaranteed by WESCO and certain of WESCO Distribution’s subsidiaries (including certain subsidiaries of Anixter). The obligations of WESCO Canada and the other Canadian Borrowers under the Revolving Credit Facility (including certain subsidiaries of Anixter) have been guaranteed by certain subsidiaries of WESCO Canada and the other Canadian Borrowers. The Revolving Credit Facility is secured by (i) substantially all assets of WESCO Distribution, the other U.S. Borrowers and certain of WESCO Distribution’s subsidiaries (including certain subsidiaries of Anixter), other than, among other things, real property and accounts receivable sold or intended to be sold pursuant to WESCO Distribution’s Receivables Facility, and (ii) substantially all assets of WESCO Canada, the other Canadian Borrowers and certain of WESCO Canada’s subsidiaries, other than, among other things, real property, in each case, subject to customary exceptions and limitations. The applicable interest rate for borrowings under the Revolving Credit Facility includes interest rate spreads based on available borrowing capacity that range between 1.25% and 1.50% for LIBOR-based borrowings and 0.25% and 0.50% for prime rate-based borrowings. At December 31, 2020, the interest rate for this facility was approximately 1.6%. The Revolving Credit Agreement requires compliance with conditions that must be satisfied prior to any borrowing as well as ongoing compliance with certain customary affirmative and negative covenants. The Revolving Credit Agreement contains customary events of default. Upon the occurrence and during the continuance of an event of default, the commitments of the lenders may be terminated, and all outstanding obligations of the loan parties under the Revolving Credit Facility may be declared immediately due and payable. During 2020, WESCO borrowed $1,197.9 million under the prior and new revolving credit facilities and made repayments in the aggregate amount of $948.0 million. During 2019, aggregate borrowings and repayments under prior revolving credit agreements were $715.4 million and $767.4 million, respectively. WESCO had $801.5 million available under the Revolving Credit facility at December 31, 2020, after giving effect to $48.5 million of outstanding letters of credit, as compared to $563.8 million available under the prior revolving credit facility at December 31, 2019, after giving effect to $28.4 million of outstanding letters of credit, $36.1 million of surety bonds, and $7.8 million of other reserves. 5.375% Senior Notes due 2021 In November 2013, WESCO Distribution issued $500 million aggregate principal amount of 5.375% Senior Notes due 2021 (the "2021 Notes") through a private offering exempt from the registration requirements of the Securities Act of 1933, as amended (the “Securities Act”). The 2021 Notes were issued at 100% of par and are governed by an indenture (the “2021 Indenture”) entered into on November 26, 2013 between WESCO International and U.S. Bank National Association, as trustee. The 2021 Notes are unsecured senior obligations of WESCO Distribution and are guaranteed on a senior unsecured basis by WESCO International. The 2021 Notes bear interest at a stated rate of 5.375% per annum, payable semi-annually in arrears on June 15 and December 15 of each year. In addition, WESCO incurred costs related to the issuance of the 2021 Notes totaling $8.4 million, which are recorded as a reduction to the carrying value of the debt and are being amortized over the life of the notes. The 2021 Notes mature on December 15, 2021 and at any time all or a part may be redeemed by WESCO Distribution. The net proceeds of the 2021 Notes were used to prepay a portion of the U.S. sub-facility of the term loan due 2019. Under the terms of a registration rights agreement dated as of November 26, 2013 among WESCO Distribution, WESCO International and Merrill Lynch, Pierce, Fenner & Smith Incorporated, as the representative of the initial purchasers of the 2021 Notes, WESCO Distribution and WESCO International agreed to register under the Securities Act notes having terms identical in all material respects to the 2021 Notes (the “2021 Exchange Notes”) and to make an offer to exchange the 2021 Exchange Notes for the 2021 Notes. WESCO Distribution launched the exchange offer on June 12, 2014 and the exchange offer expired on July 17, 2014. On December 15, 2020, WESCO Distribution exercised its right to redeem the entire $500 million aggregate principal amount of the 2021 Notes, and U.S. Bank, National Association, as trustee under the indenture governing the 2021 Notes, issued a notice of redemption to registered holders of the 2021 Notes. The date fixed for the redemption of the 2021 Notes is January 14, 2021 (the “Redemption Date”). The 2021 Notes will be redeemed at a redemption price equal to 100% of the principal amount of the 2021 Notes plus accrued interest on the 2021 Notes to, but not including, the Redemption Date. 37 Table of Contents 5.375% Senior Notes due 2024 In June 2016, WESCO Distribution issued $350 million aggregate principal amount of 5.375% Senior Notes due 2024 (the "2024 Notes") through a private offering exempt from the registration requirements of the Securities Act. The 2024 Notes were issued at 100% of par and are governed by an indenture (the “2024 Indenture”) entered into on June 15, 2016 among WESCO Distribution, as issuer, WESCO International, as parent guarantor, and U.S. Bank National Association, as trustee. The 2024 Notes are unsecured senior obligations of WESCO Distribution and are guaranteed on a senior unsecured basis by WESCO International. The 2024 Notes bear interest at a stated rate of 5.375% per annum, payable semi-annually in arrears on June 15 and December 15 of each year. WESCO incurred costs totaling $6.0 million to issue the 2024 Notes, which are recorded as a reduction to the carrying value of the debt and are being amortized over the life of the notes. The 2024 Notes mature on June 15, 2024. The Company used the net proceeds to redeem its 6.0% Convertible Senior Debentures due 2029 on September 15, 2016. Under the terms of a registration rights agreement dated as of June 15, 2016 among WESCO Distribution, as the issuer, WESCO International, as parent guarantor, and Goldman, Sachs & Co., as representative of the initial purchasers of the 2024 Notes, WESCO Distribution and WESCO International agreed to register under the Securities Act notes having terms identical in all material respects to the 2024 Notes (the “2024 Exchange Notes”) and to make an offer to exchange the 2024 Exchange Notes for the 2024 Notes. WESCO Distribution launched the exchange offer on December 28, 2016 and the exchange offer expired on January 31, 2017. Any time between June 15, 2020 and June 14, 2021, WESCO Distribution may redeem all or a part of the 2024 Notes at a redemption price equal to 102.688% of the principal amount. Between June 15, 2021 and June 14, 2022, WESCO Distribution may redeem all or a part of the 2024 Notes at a redemption price equal to 101.344% of the principal amount. On and after June 15, 2022, WESCO Distribution may redeem all or a part of the 2024 Notes at a redemption price equal to 100% of the principal amount. The 2024 Indenture contains customary covenants and events of default. Upon a change of control, the holders of the 2024 Notes have the right to require WESCO Distribution to repurchase all or any part of the 2024 Notes at a redemption price equal to 101% of the principal amount thereof, plus accrued and unpaid interest. 5.50% Senior Notes due 2023 6.00% Senior Notes due 2025 On April 30, 2020, in connection with the Merger, WESCO Distribution commenced offers to purchase for cash (each, a “WESCO Tender Offer” and, together the “WESCO Tender Offers”) any and all of Anixter Inc.’s outstanding (i) 5.50% Senior Notes due 2023 (the “Anixter 2023 Senior Notes”), $350.0 million aggregate principal amount, issued under the Indenture, dated as of August 18, 2015 (the “Anixter 2023 Indenture”), by and among Anixter Inc., Anixter and Wells Fargo Bank, National Association, as trustee, and (ii) 6.00% Senior Notes due 2025 (the “Anixter 2025 Senior Notes” and, together with the Anixter 2023 Senior Notes, the "Anixter Senior Notes"), $250.0 million aggregate principal amount, issued under the Indenture, dated as of November 13, 2018 (the “Anixter 2025 Indenture” and, together with the Anixter 2023 Indenture, the “Anixter Indentures”) by and among Anixter Inc., Anixter and Wells Fargo Bank, National Association, as trustee. Concurrent with the WESCO Tender Offers, Anixter Inc. commenced consent solicitations to amend the definition of "Change of Control" under the applicable Indenture to exclude the Merger and related transactions and expressly permit a merger between Anixter Inc. and Anixter (the “Anixter Consent Solicitations”). On June 23, 2020 (the "Expiration Date"), following the completion of the Merger, the WESCO Tender Offers and Anixter Consent Solicitations expired and settled. Pursuant to the terms of the Offer to Purchase and Consent Solicitation Statement, dated April 30, 2020, holders of the Anixter Senior Notes that validly tendered and did not validly withdraw prior to such date, received total tender offer consideration of $1,012.50 per $1,000 principal amount of Anixter Senior Notes, which amount, in each case, included an early tender payment of $50.00 per $1,000 principal amount of Anixter Senior Notes. Holders who validly delivered their consents at or prior to the Expiration Date received a consent fee of $2.50 per $1,000 principal amount of Anixter Senior Notes. As of December 31, 2020, $58.6 million and $4.2 million aggregate principal amount of the Anixter 2023 Senior Notes and Anixter 2025 Senior Notes, respectively, were outstanding. 38 Table of Contents 7.125% Senior Notes due 2025 7.250% Senior Notes due 2028 On June 12, 2020, WESCO Distribution issued $1,500 million aggregate principal amount of 7.125% Senior Notes due 2025 (the “2025 Notes”) and $1,325 million aggregate principal amount of 7.250% Senior Notes due 2028 (the “2028 Notes” and, together with the 2025 Notes, the “Notes”). The 2025 Notes were issued at a price of 100.000% of the aggregate principal amount. The 2028 Notes were issued at a price of 99.244% of the aggregate principal amount. WESCO incurred costs related to the issuance of the 2025 Notes and 2028 Notes totaling $33.1 million and $29.3 million, respectively, which were recorded as a reduction to the carrying value of the debt and are being amortized over the respective lives of the notes. The Notes were issued pursuant to, and are governed by, an indenture (the “Notes Indenture”), dated as of June 12, 2020, between the Company, WESCO Distribution and U.S. Bank National Association, as trustee (the “Trustee”). The Notes and related guarantees were issued in a private transaction exempt from the Securities Act of 1933, as amended (the “Securities Act”) and have not been, and will not be, registered under the Securities Act and may not be offered or sold in the U.S. absent registration or an applicable exemption from, or in a transaction not subject to the registration requirements of the Securities Act and other applicable securities laws. The Company used the net proceeds from the issuance of the Notes, together with borrowings under its new and amended credit facilities and existing cash on hand, to finance the Merger and the other transactions contemplated by the Merger Agreement. The use of proceeds included (i) paying the cash portion of the Merger consideration to stockholders of Anixter, (ii) refinancing certain existing indebtedness of Anixter contemplated by the Merger Agreement, including financing the satisfaction and discharge, defeasance, redemption or other repayment in full of the 5.125% Senior Notes due 2021 of Anixter Inc., a wholly owned subsidiary of Anixter, and financing payments in connection with the Anixter Consent Solicitations and WESCO Tender Offers, as described above, (iii) refinancing other indebtedness of the Company, and (iv) paying fees, costs and expenses in connection with the foregoing. The Notes are unsecured and unsubordinated obligations of WESCO Distribution and are guaranteed on an unsecured, unsubordinated basis by the Company and Anixter Inc. The 2025 Notes accrue interest at a rate of 7.125% per annum, payable semi-annually in arrears on June 15 and December 15 of each year. The 2025 Notes will mature on June 15, 2025. The 2028 Notes accrue interest at a rate of 7.250% per annum, payable semi-annually in arrears on June 15 and December 15 of each year. The 2028 Notes will mature on June 15, 2028. WESCO Distribution may redeem all or a part of the 2025 Notes at any time prior to June 15, 2022 by paying a “make- whole” premium plus accrued and unpaid interest, if any, to but excluding the redemption date. In addition, at any time prior to June 15, 2022, WESCO Distribution may redeem up to 35% of the 2025 Notes with the net cash proceeds from certain equity offerings. On or after June 15, 2022, WESCO Distribution may redeem all or a part of the 2025 Notes on the redemption dates and at the redemption prices specified in the Notes Indenture. WESCO Distribution may redeem all or a part of the 2028 Notes at any time prior to June 15, 2023 by paying a “make-whole” premium plus accrued and unpaid interest, if any, to but excluding the redemption date. In addition, at any time prior to June 15, 2023, WESCO Distribution may redeem up to 35% of the 2028 Notes with the net cash proceeds from certain equity offerings. On or after June 15, 2023, WESCO Distribution may redeem all or a part of the 2028 Notes on the redemption dates and at the redemption prices specified in the Notes Indenture. The Notes Indenture contains certain covenants that, among other things, limit (i) the Company’s and its subsidiaries’ ability to pay dividends on or repurchase the Company’s capital stock, incur liens on assets, engage in certain sale and leaseback transactions or sell certain assets, and (ii) the Company’s and any guarantor’s ability to sell all or substantially all of its assets to, or merge or consolidate with or into, other persons, in the case of each of the foregoing, subject to certain qualifications and exceptions, including the termination of certain of these covenants upon the Notes receiving investment grade credit ratings. The Notes Indenture contains certain events of default, including, among other things, failure to make required payments, failure to comply with certain agreements or covenants, failure to pay or acceleration of certain other indebtedness, certain events of bankruptcy and insolvency, and failure to pay certain judgments. An event of default under the Notes Indenture will allow either the Trustee or the holders of at least 25% in aggregate principal amount of the applicable series of the then- outstanding Notes to accelerate, or in certain cases, will automatically cause the acceleration of the amounts due under the applicable series of Notes. Covenant Compliance We were in compliance with all relevant covenants and restrictions contained in our debt agreements as of December 31, 2020. 39 Table of Contents Cash Flow An analysis of cash flows for 2020 and 2019 follows: Operating Activities. Cash provided by operating activities for 2020 totaled $543.9 million, compared with $224.4 million of cash generated in 2019. Cash provided by operating activities included net income of $100.0 million and adjustments to net income totaling $113.7 million. Other sources of cash in 2020 were generated from a decrease in inventories of $203.8 million, an increase in other current and noncurrent liabilities of $78.2 million, an increase in accrued payroll and benefit costs of $75.6 million, and a decrease in trade accounts receivable of $47.9 million. Primary uses of cash in 2020 included a decrease in accounts payable of $54.1 million and an increase in other current and noncurrent assets of $21.2 million. Cash provided by operating activities for 2019 totaled $224.4 million, compared with $296.7 million of cash generated in 2018. Cash provided by operating activities included net income of $222.2 million and adjustments to net income totaling $83.2 million. Sources of cash in 2019 were generated from an increase in accounts payable of $23.5 million and a decrease in trade accounts receivable of $11.5 million. Primary uses of cash in 2019 included: an increase in inventories of $47.3 million; a decrease in accrued payroll and benefit costs of $39.1 million; an increase in other current and noncurrent assets of $28.8 million; and, a decrease in other current and noncurrent liabilities of $0.8 million. Investing Activities. Net cash used in investing activities in 2020 was $3,735.1 million, compared with $60.8 million in 2019. Included in 2020 was $3,707.6 million to fund a portion of the merger with Anixter, as described in Note 6, "Acquisitions" of our Notes to Consolidated Financial Statements. In 2019, we made payments of $27.6 million to acquire Sylvania Lighting Solutions ("SLS"). Capital expenditures were $56.7 million in 2020, compared to $44.1 million in 2019. Proceeds from the sale of assets were $6.7 million and $16.8 million in 2020 and 2019, respectively. Other investing activities in 2020 included $22.4 million of cash inflows. Net cash used in investing activities in 2019 was $60.8 million, compared with $34.1 million in 2018. Capital expenditures in 2019 of $44.1 million increased from $36.2 million in 2018 to support the growth of our business. Included in 2019 were payments of $27.6 million for the acquisition of SLS. Proceeds from the sale of assets were $16.8 million and $12.5 million in 2019 and 2018, respectively. Other investing activities in 2019 included $5.9 million of cash outflows. Financing Activities. Net cash provided by financing activities in 2020 was $3,480.7 million, compared with $109.8 million of net cash used in financing activities for 2019. During 2020, financing activities consisted of $2,815.0 million of net proceeds from the issuance of senior unsecured notes to finance a portion of the merger with Anixter, borrowings and repayments of $1.2 billion and $948.0 million, respectively, related to our prior and new revolving credit facilities, as well as borrowings and repayments of $1.1 billion and $565.0 million, respectively, related to our prior and amended accounts receivable securitization facilities. Financing activities for 2020 also included net repayments related to our various international lines of credit of $9.7 million, $80.2 million of debt issuance costs associated with financing the merger with Anixter, and $30.1 million of dividends paid to holders of our Series A Preferred Stock. Net cash used in financing activities in 2019 was $109.8 million, compared with $275.1 million in 2018. During 2019, financing activities consisted of borrowings and repayments of $715.4 million and $767.4 million, respectively, related to our prior revolving credit facility, borrowings and repayments of $590.0 million and $450.0 million, respectively, related to our prior accounts receivable securitization facility, $24.8 million applied to fully repaying our Term Loan Facility, as well as net repayments of $5.0 million related to our various international lines of credit. Additionally, financing activities for 2019 included the repurchase of $150.0 million of the Company's common stock pursuant to the share repurchase plan announced on December 13, 2017 and amended on October 31, 2018. 40 Contractual Cash Obligations and Other Commercial CommitmentsThe following table summarizes our contractual obligations at December 31, 2020, including interest, and the effect such obligations are expected to have on liquidity and cash flow in future periods.20212022 to 20232024 to 20252026 - AfterTotal(In millions) Contractual cash obligations (including interest): Debt, excluding debt discount and debt issuance costs$ 529.9 $ 1,020.4 $ 2,108.2 $ 1,326.8 $ 4,985.3 Interest on indebtedness(1) 246.4 479.9 368.3 240.2 1,334.7 Non-cancelable operating leases 155.1 228.6 119.6 124.1 627.4 Transition tax installments 2.6 8.7 38.3 13.7 63.3 Deferred compensation liability(2) 55.2 17.3 — — 72.5 Pension plans(3) 29.5 — — — 29.5 Total contractual cash obligations$ 1,018.6 $ 1,754.9 $ 2,634.4 $ 1,704.8 $ 7,112.7 (1) Interest on the variable rate debt was calculated using the rates and balances outstanding at December 31, 2020.(2) WESCO Distribution and Anixter Inc. each sponsor a deferred compensation plan that permits select employees to make pre-tax deferrals of salary and bonus. The plans provide for benefit payments upon retirement, death, disability, termination or other scheduled dates determined by the participant. As a result of the termination of the Anixter Inc. deferred compensation plan, we estimate that $45.1 million of lump sum payments will be made directly to participants of this plan in 2021.(3) The majority of our various pension plans are non-contributory and, with the exception of the U.S. and Canada, cover substantially all full-time employees in their respective countries. Retirement benefits are provided based on compensation as defined in the plans. Our policy is to fund these plans as required by the Employee Retirement Income Security Act, the Internal Revenue Service and local statutory law. We currently estimate that we will contribute $11.4 million to our foreign pension plans in 2021. Due to the future impact of various market conditions, rates of return and changes in plan participants, we cannot provide a meaningful estimate of our future contributions beyond 2021. In addition, as a result of the termination of our two domestic non-qualified pension plans, we estimate that $18.1 million of lump sum payments will be made directly to participants of those plans during 2021.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.Liabilities related to unrecognized tax benefits, including interest and penalties, of $75.1 million were excluded from the table above as we cannot reasonably estimate the timing of these potential cash settlements with taxing authorities. See Note 12, “Income Taxes” in our Notes to Consolidated Financial Statements for further information related to unrecognized tax benefits.InflationThe 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. For the year ended December 31, 2020, pricing related to inflation did not have a material impact on our sales.SeasonalityOur operating results are not significantly affected by seasonal factors. Sales during the first and fourth quarters are usually affected by a reduced level of activity due to the impact of weather on projects. 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 StandardsSee Note 2, "Accounting Policies" of the Notes to Consolidated Financial Statements for information regarding the effect of new accounting pronouncements.Guarantor Financial StatementsWESCO Distribution (the “Issuer”) has outstanding $500 million in aggregate principal amount of 5.375% Senior Notes due 2021 (the “2021 Notes”) and $350 million in aggregate principal amount of 5.375% Senior Notes due 2024 (the “2024 Notes” and, together with the 2021 Notes, the “Notes”).Table of Contents41Table of Contents The Notes are unsecured senior obligations of WESCO Distribution and are fully and unconditionally guaranteed on a senior unsecured basis by WESCO International and Anixter Inc. (the “Guarantors”), ranking pari passu in right of payment with all other existing and future senior obligations of the Issuer, including obligations under other unsubordinated indebtedness. The Notes are effectively subordinated to all existing and future obligations of the Issuer that are secured by liens on any property or assets of the Issuer, including the Issuer’s Revolving Credit Facility and the then outstanding term loan facility (the “Senior Secured Credit Facilities”), to the extent of the value of the collateral securing such obligations, and are structurally subordinated to all liabilities (including trade payables) of any of the Guarantors’s or the Issuer’s subsidiaries (the “non-Guarantor Subsidiaries”) and senior in right of payment to all existing and future obligations of the Issuer that are, by their terms, subordinated in right of payment to the Notes. The Notes are guaranteed by the Guarantors and not by the non-Guarantor Subsidiaries. In the event of a bankruptcy, liquidation or reorganization of any of the non-Guarantor Subsidiaries, such non-Guarantor Subsidiaries will pay the holders of their debt and their trade creditors before they will be able to distribute or contribute, as the case may be, any of their assets to the Issuer or the Guarantors. Therefore, the Notes and the guarantee of the Guarantors (the “Guarantee”) are effectively subordinated to the liabilities of the non-Guarantor Subsidiaries. The Guarantee constitutes a senior obligation of the Guarantors, ranking pari passu in right of payment with all other senior obligations of the Guarantors, including obligations under other unsubordinated indebtedness. The Guarantee is effectively subordinated to all existing and future obligations incurred by the Guarantors that are secured by liens on any property or assets of the Guarantors, including the Senior Secured Credit Facilities, to the extent of the value of the collateral securing such obligations, structurally subordinated to all liabilities (including trade payables) of the non-Guarantor Subsidiaries and senior in right of payment to all existing and future obligations of the Guarantors that are, by their terms, subordinated in right of payment to the Guarantee. The Guarantors guarantee to each holder of the Notes and to the respective trustees (i) the due and punctual payment of the principal of, premium, if any, and interest on each Note, when and as the same shall become due and payable, whether at maturity, by acceleration or otherwise, the due and punctual payment of interest on the overdue principal and interest on the Notes, to the extent lawful, and the due and punctual payment of all other obligations and due and punctual performance of all obligations of the Issuer to the holders or the respective trustee all in accordance with the terms of the Notes and the indentures governing the Notes and (ii) in the case of any extension of time of payment or renewal of any Notes or any of such other obligations, that the same will be promptly paid in full when due or performed in accordance with the terms of the extension or renewal, at stated maturity, by acceleration or otherwise. If the Issuer becomes a debtor in a case under the U.S. Bankruptcy Code or encounters other financial difficulty, under federal or state fraudulent transfer law, a court may void, subordinate or otherwise decline to enforce the Notes. A court might do so if it is found that when the Issuer issued the Notes, or in some states when payments became due under the Notes, the Issuer received less than reasonably equivalent value or fair consideration and either: (i) were insolvent or rendered insolvent by reason of such incurrence; (ii) were left with inadequate capital to conduct its business; or (iii) believed or reasonably should have believed that the Issuer would incur debts beyond its ability to pay. The court might also void an issuance of the Notes without regard to the above factors, if the court found that the Issuer issued the Notes with actual intent to hinder, delay or defraud its creditors. A court would likely find that the Issuer did not receive reasonably equivalent value or fair consideration for the Notes, if the Issuer did not substantially benefit directly or indirectly from the issuance of the Notes. If a court were to void the issuance of the Notes, holders would no longer have any claim against the Issuer. Sufficient funds to repay the Notes may not be available from other sources. In addition, the court might direct holders to repay any amounts that they already received from the Issuer. 42 The following tables present summarized financial information for WESCO International, WESCO Distribution and Anixter Inc. on a combined basis after elimination of (i) intercompany transactions and balances among such entities and (ii) equity in earnings from and investments in any subsidiary that is a non-guarantor. The summarized financial information has been prepared in accordance with Rule 13-01 of Regulation S-X.Summarized Balance Sheets(In thousands)(unaudited)As ofDecember 31, 2020December 31, 2019AssetsCurrent assets$ 2,259,748 $ 582,075 Due from non-guarantor subsidiaries 277,957 465,012 Total current assets 2,537,705 1,047,087 Noncurrent assets 3,368,247 484,552 Total assets$ 5,905,952 $ 1,531,639 LiabilitiesCurrent liabilities$ 1,821,835 $ 445,075 Due to non-guarantor subsidiaries 2,046,613 3,133,326 Total current liabilities 3,868,448 3,578,401 Noncurrent liabilities 4,169,639 1,067,486 Total liabilities$ 8,038,087 $ 4,645,887 Summarized Statement of Income (Loss)(In thousands)(unaudited)Year endedDecember 31, 2020Net sales(1)$ 4,888,110 Gross profit(1) 901,992 Net loss$ (132,331) (1) Includes $35.2 million of net sales and cost of goods sold to non-guarantor subsidiaries.Item 7A. Quantitative and Qualitative Disclosures about Market Risks.Foreign Currency RisksApproximately 25% of our sales in 2020 were from our foreign subsidiaries and are denominated in foreign currencies. Our exposure to currency rate fluctuations primarily relate to Canada (Canadian dollar), Europe (euro, British pound, Swedish krona and Swiss franc) and Australia (dollar). We also have exposure to currency rate fluctuations related to more volatile markets including Argentina (peso), Brazil (real), Chile (peso), Colombia (peso), Mexico (peso), and Turkey (lira). We 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 foreign exchange rates relative 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.Table of Contents43Table of Contents We purchase foreign currency forward contracts to minimize the effect of fluctuating foreign currency-denominated accounts on our reported income. The foreign currency forward contracts are not designated as hedges for accounting purposes. At December 31, 2020, the gross and net notional amounts of foreign currency forward contracts outstanding were approximately $111.9 million. We prepared a sensitivity analysis of our foreign currency forward contracts assuming a 10% adverse change in the value of foreign currency contracts outstanding. The hypothetical adverse changes would have resulted in recording a $11.2 million loss in 2020. However, since these forward contracts are intended to be effective economic hedges, we would record offsetting gains as a result of the remeasurement of the underlying foreign currency denominated monetary amounts being hedged. Interest Rate Risk Fixed Rate Borrowings: As of December 31, 2020, approximately 75% of our debt portfolio is comprised of fixed rate debt. As our 2021 Notes, Anixter 2023 Senior Notes, 2024 Notes, 2025 Notes, Anixter 2025 Senior Notes, and 2028 Notes were issued at fixed rates, interest expense would not be impacted by interest rate fluctuations. However, the fair value of our fixed rate debt will generally fluctuate with movements of interest rates, increasing in periods of declining rates of interest and declining in periods of increasing rates of interest. The fair value of our debt instruments with fixed interest rates is disclosed in Note 4, "Fair Value of Financial Instruments" of our Notes to Consolidated Financial Statements. Floating Rate Borrowings: Our variable rate borrowings are comprised of the Revolving Credit Facility, the Receivables Facility, and international lines of credit. The fair value of these debt instruments at December 31, 2020 approximated carrying value. 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 the applicable LIBOR / CDOR (Canadian Dealer Offered Rate) or base rates plus applicable spreads, whereas borrowings under the Receivables Facility bear interest at the 30-day LIBOR rate, with a LIBOR floor of 0.5%, plus applicable spreads. A 100 basis point increase or decrease in interest rates would not have a significant impact on future earnings under our current capital structure. Defined Benefit Pension Plans: At the end of each fiscal year, we determine the interest rate to discount pension plan liabilities to their present value. The discount rate reflects the current rate at which the pension liabilities could be effectively settled at the end of the year. In estimating this rate at the end of 2020, we reviewed rates of return on relevant market indices and concluded that the Willis Towers Watson Global Rate Link Model was consistent with observable market conditions and industry standards for developing spot rate curves. At December 31, 2020, we determined the consolidated weighted-average discount rate of all plans was 2.2% and used this rate to measure the projected benefit obligation. Due to its long duration, the pension liability is sensitive to changes in the discount rate. As a sensitivity measure, the effect of a 50-basis-point decline in the assumed discount rate would result in an increase in the expense for 2021 of approximately $1.0 million, and an increase in the projected benefit obligations at December 31, 2020 of $80.0 million. The impact of a 50-basis-point increase in the assumed discount rate would result in a decrease in the expense for 2021 of approximately $1.0 million, and a decrease in the projected benefit obligations of $71.0 million. 44 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: PAGEReport of Independent Registered Public Accounting Firm46Consolidated Balance Sheets as of December 31, 2020 and 201949Consolidated Statements of Income and Comprehensive Income for the years endedDecember 31, 2020, 2019 and 201850Consolidated Statements of Stockholders’ Equity for the years ended December 31, 2020, 2019 and 201851Consolidated Statements of Cash Flows for the years ended December 31, 2020, 2019 and 201852Notes to Consolidated Financial Statements53Table of Contents45Table of Contents Report of Independent Registered Public Accounting Firm To the Board of Directors and Stockholders of WESCO International, Inc. Opinions on the Financial Statements and Internal Control over Financial Reporting We have audited the accompanying consolidated balance sheets of WESCO International, Inc. and its subsidiaries (the “Company”) as of December 31, 2020 and 2019, and the related consolidated statements of income and comprehensive income, of stockholders’ equity and of cash flows for each of the three years in the period ended December 31, 2020, including the related notes and schedule of valuation and qualifying accounts for each of the three years in the period ended December 31, 2020 appearing after Item 15 (collectively referred to as the “consolidated financial statements”). We also have audited the Company's internal control over financial reporting as of December 31, 2020, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 2020 and 2019, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2020 in conformity with accounting principles generally accepted in the United States of America. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2020, based on criteria established in Internal Control - Integrated Framework (2013) issued by the COSO. Change in Accounting Principle As discussed in Note 2 to the consolidated financial statements, the Company changed the manner in which it accounts for leases in 2019. Basis for Opinions The Company's management is responsible for these consolidated financial statements, 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 the Company’s consolidated financial statements and on the Company's internal control over financial reporting based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB. We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects. Our audits of the consolidated financial statements included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. 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. As described in Management’s Report on Internal Control Over Financial Reporting, management has excluded Anixter Inc. (the surviving entity of the Anixter International Inc. acquisition) from its assessment of internal control over financial reporting as of December 31, 2020 because it was acquired by the Company in a purchase business combination during 2020. We have also excluded Anixter Inc. from our audit of internal control over financial reporting. Anixter Inc. is a wholly-owned subsidiary whose total assets and total net sales excluded from management’s assessment and our audit of internal control over financial reporting represent 30% and 37%, respectively, of the related consolidated financial statement amounts as of and for the year ended December 31, 2020. Definition and Limitations of Internal Control over Financial Reporting 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 46 Table of Contents 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. Critical Audit Matters The critical audit matters communicated below are matters arising from the current period audit of the consolidated financial statements that were communicated or required to be communicated to the audit committee and that (i) relate to accounts or disclosures that are material to the consolidated financial statements and (ii) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matters below, providing separate opinions on the critical audit matters or on the accounts or disclosures to which they relate. Interim Goodwill Impairment Assessments As described in Notes 2 and 5 to the consolidated financial statements, the Company’s goodwill balance was $3,187 million as of December 31, 2020. Goodwill is tested by management for impairment annually during the fourth quarter or more frequently if triggering events occur indicating that the carrying value may not be recoverable. Certain triggering events occurred during the first quarter of 2020, including the effect of the ongoing macroeconomic disruption and uncertainty caused by the COVID-19 pandemic, as well as the decline in the Company’s share price and market capitalization, both of which indicated that the carrying value of goodwill may not be recoverable. Accordingly, the Company performed an interim test for impairment as of March 31, 2020. Additionally, the Company identified new operating segments during the third quarter of 2020, which changed the composition of its reporting units. Accordingly, the Company performed a goodwill impairment test immediately before and after it reorganized its reporting structure. There were no impairment losses identified as a result of these interim tests. Management tests for goodwill impairment on a reporting unit level and the evaluation involves comparing the fair value of each reporting unit to its carrying value. Fair value is estimated using a discounted cash flow analysis approach. Management applied significant judgment related to these fair value techniques, which included the selection of an expected operating margin for each year in the forecast and discount rate assumptions. The principal considerations for our determination that performing procedures relating to the interim goodwill impairment assessments is a critical audit matter are (i) the significant judgment by management when developing the fair value measurements of the reporting units; (ii) a high degree of auditor judgment, subjectivity, and effort in performing procedures and evaluating management’s significant assumptions related to the expected operating margins and discount rates; and (iii) the audit effort involved the use of professionals with specialized skill and knowledge. Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the consolidated financial statements. These procedures included testing the effectiveness of controls relating to management’s interim goodwill impairment assessments, including controls over the determination of the fair value for each reporting unit. These procedures also included, among others (i) evaluating the appropriateness of the valuation techniques used in management’s estimates; (ii) testing the completeness and accuracy of underlying data used in the techniques; and (iii) evaluating the significant assumptions used by management related to the expected operating margins and discount rates. Evaluating whether management’s assumptions related to the expected operating margins were reasonable involved consideration of (i) the current and past performance of each reporting unit; (ii) consistency with external market and industry data; and (iii) consistency with evidence obtained in other areas of the audit. Professionals with specialized skill and knowledge were used to assist in the evaluation of the Company’s discount rate assumptions. Customer Relationship Intangible Assets Recognized in Connection with the Acquisition of Anixter International Inc. As described in Notes 2 and 6 to the consolidated financial statements, the Company completed the acquisition of Anixter International Inc. for net consideration of $3.7 billion in 2020, which resulted in $1.1 billion of customer relationship intangible assets being recorded. Fair value of the customer relationship intangible assets was estimated using the multi-period excess earnings method. Management applied significant judgement related to this fair value technique, which included the selection of an expected operating margin assumption for each year in the forecast, and customer attrition rate and discount rate assumptions. 47 Table of Contents The principal considerations for our determination that performing procedures relating to the customer relationship intangible assets recognized in connection with the acquisition of Anixter International Inc. is a critical audit matter are (i) the significant judgment by management when developing the fair value measurements of the customer relationship intangible assets; (ii) a high degree of auditor judgment, subjectivity, and effort in performing procedures and evaluating management’s significant assumptions related to the expected operating margins, customer attrition rates and discount rates; and (iii) the audit effort involved the use of professionals with specialized skill and knowledge. Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the consolidated financial statements. These procedures included testing the effectiveness of controls relating to management’s acquisition accounting, including controls over the valuation of the acquired customer relationship intangible assets. These procedures also included, among others (i) testing the appropriateness of the valuation method used, (ii) testing the completeness and accuracy of underlying data used in the method, and (iii) evaluating the significant assumptions used by management related to the expected operating margins, customer attrition rates, and discount rates. Evaluating whether management’s assumptions related to the expected operating margins and customer attrition rates were reasonable involved consideration of (i) the past performance of the acquired businesses; (ii) consistency with external market and industry data; and (iii) consistency with evidence obtained in other areas of the audit. Professionals with specialized skill and knowledge were used to assist in the evaluation of the appropriateness of the valuation methods, the customer attrition rates, and the discount rates. /s/ PricewaterhouseCoopers LLP Pittsburgh, Pennsylvania March 1, 2021 We have served as the Company’s auditor since 1994. 48 CONSOLIDATED BALANCE SHEETS As of December 31, 20202019(In thousands, except per share data)AssetsCurrent assets: Cash and cash equivalents$ 449,135 $ 150,902 Trade accounts receivable, net of allowance for expected credit losses of $23,909 and $25,443 in 2020 and 2019, respectively 2,466,903 1,187,359 Other accounts receivable 239,199 98,029 Inventories 2,163,831 1,011,674 Prepaid expenses and other current assets 187,910 92,447 Total current assets 5,506,978 2,540,411 Property, buildings and equipment, net 399,157 181,448 Operating lease assets 534,705 235,834 Intangible assets, net 2,065,495 287,275 Goodwill 3,187,169 1,759,040 Deferred income taxes 37,696 11,248 Other assets 93,941 2,379 Assets held for sale 55,073 — Total assets$ 11,880,214 $ 5,017,635 Liabilities and Stockholders’ Equity Current liabilities: Accounts payable$ 1,707,329 $ 830,478 Accrued payroll and benefit costs 198,535 49,508 Short-term debt and current portion of long-term debt, net of debt issuance costs of $1,039 in 2020 528,830 26,685 Other current liabilities 552,301 177,388 Total current liabilities 2,986,995 1,084,059 Long-term debt, net of debt discount and debt issuance costs of $87,142 and $8,876 in 2020 and 2019, respectively 4,369,953 1,257,067 Operating lease liabilities 414,889 179,830 Deferred income taxes 488,261 146,617 Other noncurrent liabilities 278,010 91,391 Liabilities held for sale 5,717 — Total liabilities$ 8,543,825 $ 2,758,964 Commitments and contingencies (Note 16)Stockholders’ Equity: Preferred stock, $.01 par value; 20,000,000 shares authorized, no shares issued or outstanding$ — $ — Preferred stock, Series A, $.01 par value; 25,000 shares authorized, 21,612 shares issued and outstanding in 2020 — — Common stock, $.01 par value; 210,000,000 shares authorized, 67,596,515 and 59,308,018 shares issued and 50,064,985 and 41,797,093 shares outstanding in 2020 and 2019, respectively 676 593 Class B nonvoting convertible common stock, $.01 par value; 20,000,000 shares authorized, 4,339,431 issued and no shares outstanding in 2020 and 2019, respectively 43 43 Additional capital 1,942,810 1,039,347 Retained earnings 2,601,662 2,530,429 Treasury stock, at cost; 21,870,961 and 21,850,356 shares in 2020 and 2019, respectively (938,335) (937,157) Accumulated other comprehensive loss (263,134) (367,772) Total WESCO International, Inc. stockholders' equity 3,343,722 2,265,483 Noncontrolling interests (7,333) (6,812) Total stockholders’ equity 3,336,389 2,258,671 Total liabilities and stockholders’ equity$ 11,880,214 $ 5,017,635 The accompanying notes are an integral part of the consolidated financial statements.Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIES49CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME Year Ended December 31, 202020192018 (In thousands, except per share data)Net sales$ 12,325,995 $ 8,358,917 $ 8,176,601 Cost of goods sold (excluding depreciation and amortization) 9,998,329 6,777,456 6,609,220 Selling, general and administrative expenses 1,859,028 1,173,137 1,151,944 Depreciation and amortization 121,600 62,107 62,997 Income from operations 347,038 346,217 352,440 Interest expense, net 226,591 65,710 68,661 Other, net (2,395) (1,554) 2,754 Income before income taxes 122,842 282,061 281,025 Provision for income taxes 22,803 59,863 55,670 Net income 100,039 222,198 225,355 Less: Net loss attributable to noncontrolling interests (521) (1,228) (1,988) Net income attributable to WESCO International, Inc. 100,560 223,426 227,343 Less: Preferred stock dividends 30,139 — — Net income attributable to common stockholders$ 70,421 $ 223,426 $ 227,343 Other comprehensive income (loss): Foreign currency translation adjustments 95,577 49,306 (99,643) Post retirement benefit plan adjustments, net of tax 9,061 (8,643) 3,798 Comprehensive income attributable to common stockholders$ 175,059 $ 264,089 $ 131,498 Earnings per share attributable to common stockholders Basic$ 1.53 $ 5.18 $ 4.87 Diluted$ 1.51 $ 5.14 $ 4.82 The accompanying notes are an integral part of the consolidated financial statements.Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIES50CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITYAccumulated Other Class BSeries A Retained Comprehensive Common StockCommon StockPreferred StockAdditionalEarningsTreasury StockNoncontrollingIncome(In thousands)AmountSharesAmountSharesAmountSharesCapital(Deficit)AmountSharesInterests(Loss)Balance, December 31, 2017$ 591 59,045,762 $ 43 4,339,431 $ — — $ 999,156 $ 2,079,697 $ (647,158) (16,375,653) $ (3,596) $ (312,590) Exercise of stock-based awards 1 130,371 (45) (841) (11,943) Stock-based compensation expense and other 10,790 Repurchases of common stock (14,981) (110,019) (2,003,446) Tax withholding related to vesting of restricted stock units and retirement of common stock — (18,437) (1,254) 422 Noncontrolling interests (1,988) Net income attributable to WESCO 227,343 Translation adjustments (99,643) Benefit plan adjustments, net of tax effect of $1,404 3,798 Balance, December 31, 2018$ 592 59,157,696 $ 43 4,339,431 $ — — $ 993,666 $ 2,307,462 $ (758,018) (18,391,042) $ (5,584) $ (408,435) Exercise of stock-based awards 1 198,985 (84) (238) (3,730) Stock-based compensation expense 19,062 Repurchases of common stock 28,901 (178,901) (3,455,584) Tax withholding related to vesting of restricted stock units and retirement of common stock — (48,663) (2,198) (459) Noncontrolling interests (1,228) Net income attributable to WESCO 223,426 Translation adjustments 49,306 Benefit plan adjustments, net of tax effect of $2,943 (8,643) Balance, December 31, 2019$ 593 59,308,018 $ 43 4,339,431 $ — — $ 1,039,347 $ 2,530,429 $ (937,157) (21,850,356) $ (6,812) $ (367,772) Exercise of stock-based awards 1 171,517 (40) (1,178) (20,605) Stock-based compensation expense 19,279 Tax withholding related to vesting of restricted stock units and retirement of common stock — (33,248) (2,377) 812 Capital stock issuance 82 8,150,228 — 21,612 886,601 Noncontrolling interests (521) Net income attributable to WESCO 100,560 Preferred stock dividends (30,139) Translation adjustments 95,577 Benefit plan adjustments, net of tax effect of $2,891 9,061 Balance, December 31, 2020$ 676 67,596,515 $ 43 4,339,431 $ — 21,612 $ 1,942,810 $ 2,601,662 $ (938,335) (21,870,961) $ (7,333) $ (263,134) The accompanying notes are an integral part of the consolidated financial statements.Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIES51CONSOLIDATED STATEMENTS OF CASH FLOWS Year Ended December 31, 202020192018 (In thousands)Operating Activities: Net income$ 100,039 $ 222,198 $ 225,355 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 121,600 62,107 62,997 Stock-based compensation expense 19,279 19,062 16,445 Other operating activities, net 6,366 (11,175) (3,652) Deferred income taxes (33,538) 13,205 9,137 Changes in assets and liabilities: Trade accounts receivable, net 47,879 11,453 (22,934) Inventories 203,827 (47,297) (8,702) Other current and noncurrent assets (21,199) (28,785) (4,239) Accounts payable (54,127) 23,505 9,193 Accrued payroll and benefit costs 75,556 (39,081) 18,777 Other current and noncurrent liabilities 78,249 (825) (5,656) Net cash provided by operating activities 543,931 224,367 296,721 Investing Activities: Capital expenditures (56,671) (44,067) (36,210) Acquisition payments, net of cash acquired (3,707,575) (27,597) — Proceeds from sale of assets 6,721 16,795 12,461 Other investing activities, net 22,376 (5,931) (10,393) Net cash used in investing activities (3,735,149) (60,800) (34,142) Financing Activities: Repayments of short-term debt, net (11,258) (29,780) (1,454) Proceeds from issuance of long-term debt 5,114,210 1,305,421 1,193,067 Repayments of long-term debt (1,513,048) (1,217,434) (1,318,470) Repurchases of common stock (2,901) (153,049) (127,169) Debt issuance costs (80,231) (2,707) — Payment of dividends (30,139) — — Other financing activities, net 4,108 (12,217) (21,068) Net cash provided by (used in) financing activities 3,480,741 (109,766) (275,094) Effect of exchange rate changes on cash and cash equivalents 8,710 758 (9,095) Net change in cash and cash equivalents 298,233 54,559 (21,610) Cash and cash equivalents at the beginning of period 150,902 96,343 117,953 Cash and cash equivalents at the end of period$ 449,135 $ 150,902 $ 96,343 Supplemental disclosures: Cash paid for interest$ 169,620 $ 65,275 $ 64,702 Cash paid for taxes 56,186 64,531 61,983 The accompanying notes are an integral part of the consolidated financial statements.Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIES52Table of Contents 1. ORGANIZATION WESCO INTERNATIONAL, INC. AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS WESCO International, Inc. ("WESCO International") and its subsidiaries (collectively, “WESCO” or the "Company"), headquartered in Pittsburgh, Pennsylvania, is a leading provider of business-to-business distribution, logistics services and supply chain solutions. On June 22, 2020, WESCO completed its previously announced acquisition of Anixter International Inc., a Delaware corporation (“Anixter”). Pursuant to the terms of the Agreement and Plan of Merger, dated January 10, 2020 (the “Merger Agreement”), by and among Anixter, WESCO and Warrior Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of WESCO (“Merger Sub”), Merger Sub was merged with and into Anixter (the “Merger”), with Anixter surviving the Merger and continuing as a wholly owned subsidiary of WESCO. On June 23, 2020, Anixter merged with and into Anixter Inc., with Anixter Inc. surviving to become a wholly owned subsidiary of WESCO. 2. ACCOUNTING POLICIES Basis of Presentation 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. At the beginning of the third quarter of 2020, in connection with the acquisition of Anixter, the Company identified new operating segments. These operating segments, which have been organized around three strategic business units, consist of Electrical & Electronic Solutions ("EES"), Communications & Security Solutions ("CSS") and Utility & Broadband Solutions ("UBS"). The Company's operating segments, which are equivalent to its reportable segments, are described further in Note 17, "Business Segments". The applicable comparative financial information reported in the Company's previously issued consolidated financial statements for the years ended December 31, 2019 and 2018 has been recast in this Annual Report on Form 10-K to conform to the basis of the new segments. Out-of-Period Adjustment In the fourth quarter of 2020, management determined that the Company’s inventories were overstated by $60.3 million because of a misstatement in inventory cost absorption accounting, which occurred over multiple periods and also impacted inventories acquired in business combinations during those periods. Accordingly, the Consolidated Balance Sheet at December 31, 2020 reflects a reduction to inventories of $60.3 million, an increase to goodwill of $33.9 million and a decrease to deferred income tax liabilities of $12.0 million. The resulting effect of the out-of-period adjustment on the Consolidated Statement of Income and Comprehensive Income for the year ended December 31, 2020 was a $18.9 million increase to cost of goods sold, which decreased net income for the year by $14.4 million. Management concluded that this misstatement is not material to the current period or the financial statements of any previously filed annual or interim periods. Reclassifications The Consolidated Balance Sheet as of December 31, 2019, the Consolidated Statements of Income and Comprehensive Income for the years ended December 31, 2019 and 2018, and the Consolidated Statements of Cash Flows for the years ended December 31, 2019 and 2018, respectively, include certain reclassifications to previously reported amounts to conform to the current period's presentation. 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 notes. 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. 53 Table of Contents WESCO INTERNATIONAL, INC. AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED) Revenue Recognition WESCO’s revenue arrangements generally consist of single performance obligations to transfer a promised good or service, or a combination of goods and services. Revenue is measured as the amount of consideration WESCO expects to receive in exchange for transferring goods or providing services. Revenue is recognized when control has transferred to the customer, which is generally when the product has shipped from a WESCO facility or directly from a supplier. However, transfer may occur at a later date depending on the agreed upon terms, such as delivery at the customer's designated location, or based on consignment terms. For products that ship directly from suppliers to customers, WESCO acts as the principal in the transaction and recognizes revenue on a gross basis. When providing services, sales are recognized over time as control transfers to the customer, which occurs as services are rendered. WESCO generally satisfies its performance obligations within a year or less. WESCO generally does not have significant financing terms associated with its contracts; payments are normally received within 60 days. There are generally no significant costs associated with obtaining customer contracts. WESCO typically passes through warranties offered by manufacturers or suppliers to its customers. Sales taxes (and value added taxes in foreign jurisdictions) collected from customers and remitted to governmental authorities are excluded from net sales. 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 in the Consolidated Balance Sheets, and represent the estimated amounts due to WESCO based on forecasted purchases and the rebate provisions of the various supplier contracts. The corresponding rebate income is recorded as a reduction to cost of goods sold. Receivables under the supplier rebate program were $136.7 million at December 31, 2020 and $81.6 million at December 31, 2019. The supplier volume rebate income as a percentage of net sales was 1.1% in 2020, 1.2% in 2019 and 1.3% in 2018. Cash Equivalents Cash equivalents are defined as highly liquid investments with original maturities of 90 days or less when purchased. Allowance for Expected Credit Losses WESCO recognizes expected credit losses resulting from the inability of its customers to make required payments through an allowance account that is measured each reporting date. WESCO estimates credit losses over the life of its trade accounts receivable using a combination of historical loss data, current credit conditions, specific customer circumstances, and reasonable and supportable forecasts of future economic conditions. The allowance for expected credit losses was $23.9 million at December 31, 2020 and $25.4 million at December 31, 2019. The total amount recorded as selling, general and administrative expense related to credit losses was $10.1 million, $7.0 million and $10.9 million for 2020, 2019 and 2018, respectively. Inventories Inventories primarily consist of merchandise purchased for resale and are stated at the lower of cost and net realizable value. Cost is determined principally under the average cost method. WESCO reduces the carrying value of its inventories at the earlier of identifying an item that is considered to be obsolete or in excess of supply relative to demand, or no movement in the past 15 months. Reserves for excess and obsolete inventories were $28.7 million and $30.7 million at December 31, 2020 and 2019, respectively. The total expense related to excess and obsolete inventories, included in cost of goods sold, was $15.7 million, $10.0 million and $9.7 million for 2020, 2019 and 2018, 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 buildings and leasehold improvements and two to ten years for furniture, fixtures and equipment. Costs incurred during the application development stage of internally developing software are capitalized and are reported at the lower of unamortized cost or net realizable value. Costs incurred during the preliminary project and post-implementation stages are expensed as incurred. Capitalized costs include external direct costs of materials and services consumed in developing internal-use computer software, payroll and payroll-related costs for employees who are directly associated with and who devote time to the internal-use computer software project and interest costs. Internal-use computer software is amortized using the straight-line method over its estimated useful life, typically three to seven years. 54 Table of Contents WESCO INTERNATIONAL, INC. AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED) 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 resulting gains or losses are recorded and reported as selling, general and administrative expenses. Of WESCO’s $399.2 million net book value of property, buildings and equipment as of December 31, 2020, $144.1 million consists of land, buildings and leasehold improvements that are geographically dispersed among WESCO’s 800 branches, warehouses and sales offices, mitigating the risk of impairment. WESCO assesses its long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of any such assets may not be fully recoverable. Changes in circumstances include technological advances, changes in the business model, capital structure, economic conditions or operating performance. The evaluation is based upon, among other things, utilization, serviceability and assumptions developed by management, which are categorized as Level 3 of the fair value hierarchy, related to the estimated future undiscounted cash flows that these assets are expected to generate. When the sum of the undiscounted cash flows is less than the carrying value of the asset or asset group, an impairment loss is recognized to the extent that carrying value exceeds fair value. Management applies its best judgment when performing these evaluations. Leases The determination of whether an arrangement is, or contains, a lease is performed at the inception of the arrangement. Classification and initial measurement of the right-of-use asset and lease liability are determined at the lease commencement date. The Company elected the short-term lease measurement and recognition exemption; therefore, leases with an initial term of 12 months or less are not recorded on the balance sheet. Operating lease expense is recognized on a straight-line basis over the lease term. Operating lease assets and liabilities are recognized at the commencement date based on the present value of the future minimum lease payments. Certain leases contain rent escalation clauses that are either fixed or adjusted periodically for inflation or market rates and such clauses are factored into the Company's determination of lease payments. WESCO also has variable lease payments that do not depend on a rate or index, primarily for items such as common area maintenance and real estate taxes, which are recorded as variable expense when incurred. The operating lease asset includes advance payments and excludes incentives and initial direct costs incurred. The Company's arrangements include certain non-lease components such as common area and other maintenance for leased real estate, as well as mileage, fuel and maintenance costs related to leased automobiles and trucks. WESCO accounts for these nonlease components separately from the associated lease components. The Company does not guarantee any residual value in its lease agreements, and there are no material restrictions or covenants imposed by lease arrangements. Real estate leases typically include one or more options to extend the lease, or terminate early. The Company regularly evaluates the renewal options, and when they are reasonably certain of exercise, the Company includes the renewal period in its lease term. For most of WESCO’s leases, the discount rate implicit in the lease is not readily determinable. Accordingly, the Company uses its incremental borrowing rate based on the information available at the lease commencement date to discount lease payments to the present value. Goodwill and Indefinite-Lived Intangible Assets Goodwill and indefinite-lived intangible assets are tested for impairment annually during the fourth quarter using information available at the end of September, or more frequently if triggering events occur, indicating that their carrying value may not be recoverable. WESCO tests for goodwill impairment on a reporting unit level. The Company first assesses qualitative factors, including macroeconomic conditions, industry and market considerations, cost factors, overall financial performance, other relevant events such as changes in key personnel, changes in the composition or carrying amount of the net assets of a reporting unit, and sustained decreases in share price, to determine whether it is more likely than not that the fair value of WESCO's reporting units are less than their carrying values. If the qualitative assessment indicates that the fair values of the Company's reporting units may not exceed their respective carrying values, then WESCO performs a quantitative test for impairment by comparing the fair value of each reporting unit to its carrying value. The Company determines the fair values of its reporting units using a discounted cash flow analysis and consideration of market multiples. The discounted cash flow analysis uses certain assumptions, including expected operating margins supported by a combination of historical results, current forecasts, market data and recent economic events, which are categorized within Level 3 of the fair value hierarchy. The Company uses a discount rate that reflects market participants' cost of capital. WESCO evaluates the recoverability of indefinite-lived intangible assets using the relief-from-royalty method based on projected financial information. At December 31, 2020 and 2019, goodwill and indefinite-lived trademarks totaled $4.0 billion and $1.9 billion, respectively. 55 Table of Contents WESCO INTERNATIONAL, INC. AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED) The determination of fair value involves significant management judgment, particularly as it relates to the underlying assumptions and factors around expected operating margins and discount rate. Management applies its best judgment when assessing the reasonableness of financial projections. Fair values are sensitive to changes in underlying assumptions and factors. As a result, there can be no assurance that the estimates and assumptions made for purposes of the annual goodwill and indefinite-lived intangible impairment tests will prove to be an accurate prediction of future results. Definite Lived Intangible Assets Definite lived intangible assets are amortized over 2 to 20 years. Certain customer relationships are amortized using an accelerated method whereas all other definite lived intangible assets subject to amortization use a straight-line method. In either case, the amortization method reflects the pattern in which the economic benefits of the respective assets are consumed or otherwise used. WESCO continually evaluates whether events or circumstances have occurred that would indicate the remaining estimated useful lives of definite lived intangible assets require revision or that the remaining carrying value of such assets may not be recoverable. Insurance Programs WESCO uses commercial insurance for auto, workers’ compensation, casualty and health claims, and information technology as a risk-reduction strategy to minimize catastrophic losses. The Company’s strategy involves large deductible policies where WESCO must pay all costs up to the deductible amount. WESCO estimates the reserve for these programs based on historical incident rates and costs. The assumptions included in developing this accrual include the period of time between the incurrence and payment of a claim. The total liability related to insurance programs was $27.9 million and $12.9 million at December 31, 2020 and 2019, respectively. Income Taxes WESCO accounts for income taxes under the asset and liability method, which requires the recognition of deferred income taxes for events that have future tax consequences. Under this method, deferred income taxes are recognized (using enacted tax laws and rates) based on the future income tax effects of differences in the carrying amounts of assets and liabilities for financial reporting and tax purposes. The effect of a tax rate change on deferred tax assets and liabilities is recognized in income in the period of change. WESCO recognizes deferred tax assets at amounts that are expected to be realized. To make such determination, management evaluates all positive and negative evidence, including but not limited to, prior, current and future taxable income, tax planning strategies and future reversals of existing taxable temporary differences. A valuation allowance is recognized if it is “more-likely-than-not” that some or all of a deferred tax asset will not be realized. WESCO regularly assesses the realizability of deferred tax assets. WESCO accounts for uncertainty in income taxes using a "more-likely-than-not" recognition threshold. Due to the subjectivity inherent in the evaluation of uncertain tax positions, the tax benefit ultimately recognized may materially differ from the estimate recognized in the consolidated financial statements. WESCO recognizes interest and penalties related to uncertain tax benefits as part of interest expense and income tax expense, respectively. The Tax Cuts and Jobs Act of 2017 (the “TCJA”) imposed a one-time tax on the deemed repatriation of undistributed foreign earnings (the “transition tax”). Except for a portion of foreign earnings previously taxed in the U.S. that can effectively be distributed without further material U.S. or foreign taxation, the Company continues to assert that the undistributed earnings of its foreign subsidiaries are indefinitely reinvested. To the extent the earnings of the Company's foreign subsidiaries are distributed in the form of dividends, such earnings may be subject to additional taxes. The Company believes that it is able to maintain a sufficient level of liquidity for its domestic operations and commitments without incurring any material tax cost to repatriate cash held by its foreign subsidiaries. The provisions of the TCJA also introduced U.S. taxation on certain global intangible low-taxed income ("GILTI"). WESCO has elected to account for GILTI tax as a component of income tax expense. Foreign Currency The local currency is the functional currency for most of the Company's operations outside the U.S. 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 an exchange rate that approximates the average for 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 (loss) within stockholders’ equity. Gains and losses from foreign currency transactions are included in net income for the period. 56 Table of Contents WESCO INTERNATIONAL, INC. AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED) Defined Benefit Pension Plan 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). Unrealized gains and losses related to the Company's defined benefit pension obligations are recognized as a component of other comprehensive income (loss) within stockholders' equity. Fair Value of Financial Instruments The Company measures the fair value of assets and liabilities on a recurring and nonrecurring basis according to a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value and requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs. The three levels of the fair value hierarchy are as follows: Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities that are accessible at the measurement date; Level 2 inputs include inputs other than Level 1 that are observable, either directly or indirectly, and Level 3 inputs are unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to measurements involving significant unobservable inputs (Level 3). The Company measures the fair values of goodwill, intangible assets and property, buildings and equipment on a nonrecurring basis if required by impairment tests applicable to these assets, as described above. Other, net Other non-operating income and expenses ("other, net") primarily includes the non-service cost components of net periodic pension cost (benefit) and foreign exchange gains and losses. Recently Adopted Accounting Pronouncements Effective January 1, 2019, WESCO adopted Accounting Standards Update (ASU) 2016-02, Leases, and all the related amendments (“Topic 842”), a comprehensive new standard that amended various aspects of existing accounting guidance for leases. The adoption of Topic 842 resulted in the recognition of right-of-use assets and lease liabilities for operating leases of approximately $240 million and $245 million, respectively, in the Consolidated Balance Sheet as of January 1, 2019, most of which relate to real estate. The adoption of Topic 842 did not have a material impact on the Consolidated Statements of Income and Comprehensive Income or Consolidated Statements of Cash Flows for the year ended December 31, 2019. The Company used the optional effective date transition method and therefore did not adjust the prior comparative periods presented herein. There was no cumulative-effect adjustment to beginning retained earnings as a result of using this method. In addition, the Company elected the package of practical expedients that allowed the adoption of Topic 842 without reassessing arrangements that commenced prior to the effective date. Additional qualitative and quantitative information about the Company's leases is disclosed in Note 9, "Leases". In June 2016, the Financial Accounting Standards Board ("FASB") issued ASU 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which introduced new guidance for the accounting for credit losses on certain financial instruments. The Company adopted this ASU effective January 1, 2020. The adoption of this new credit loss guidance did not have a material impact on the consolidated financial statements and notes thereto presented herein, and WESCO does not expect it to have a material impact on its financial position or results of operation on an ongoing basis. In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement, which amends the disclosure requirements for recurring and nonrecurring fair value measurements by removing, modifying and adding certain disclosures. The Company adopted this ASU in the first quarter of 2020. The adoption of this guidance did not have a material impact on the consolidated financial statements and notes thereto presented herein. In August 2018, the FASB issued ASU 2018-15, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract, which aligned the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. The standard was effective for fiscal years beginning after December 15, 2019. The Company adopted this ASU in the first quarter of 2020. The adoption of this guidance did not have a material impact on the consolidated financial statements and notes thereto presented herein. 57 In August 2018, the FASB issued ASU 2018-14, Compensation—Retirement Benefits—Defined Benefit Plans—General (Subtopic 715-20): Disclosure Framework—Changes to the Disclosure Requirements for Defined Benefit Plans, which amends the disclosure requirements for all employers that sponsor defined benefit pension and other post retirement plans by removing and adding certain disclosures. The amendments in this ASU are effective for fiscal years ending after December 15, 2020. Early adoption is permitted. The Company adopted this ASU in the fourth quarter of 2020. The adoption of this guidance did not have a material impact on the consolidated financial statements and notes thereto presented herein.Recently Issued Accounting PronouncementsIn December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, which removes certain exceptions to the general principles of Accounting Standards Codification Topic 740, Income Taxes, and simplifies other aspects of accounting for income taxes. The amendments in this ASU are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2020. Early adoption is permitted in any interim or annual period, with any adjustments reflected as of the beginning of the fiscal year of adoption. Management does not expect the adoption of this accounting standard to have a material impact on its consolidated financial statements and notes thereto.In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting, which provides optional guidance for a limited period of time to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting. The amendments in this Update are effective for all entities as of March 12, 2020 through December 31, 2022. Management is currently evaluating the impact related to the replacement of London Interbank Offered Rate (LIBOR) and whether the Company will elect the adoption of the optional guidance.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.3. REVENUEWESCO distributes products and provides services to customers globally in various end markets within its business segments. The segments, which consist of Electrical & Electronic Solutions, Communications & Security Solutions, and Utility & Broadband Solutions operate in the United States, Canada and various other international countries.The following tables disaggregate WESCO’s net sales by segment and geography for the periods presented: Year Ended December 31,(In thousands)202020192018Electrical & Electronic Solutions$ 5,479,760 $ 4,860,541 $ 4,878,836 Communications & Security Solutions 3,323,264 909,496 857,481 Utility & Broadband Solutions 3,522,971 2,588,880 2,440,284 Total by segment$ 12,325,995 $ 8,358,917 $ 8,176,601 Year Ended December 31,(In thousands)202020192018United States$ 9,110,453 $ 6,234,119 $ 6,089,130 Canada 1,892,321 1,647,066 1,647,933 Other International (1) 1,323,221 477,732 439,538 Total by geography (2)$ 12,325,995 $ 8,358,917 $ 8,176,601 (1) No individual other international country's net sales are material.(2) WESCO attributes revenues from external customers to individual countries on the basis of point of sale.In accordance with certain contractual arrangements, WESCO receives payment from its customers in advance and recognizes such payment as deferred revenue. Revenue for advance payment is recognized when the performance obligation has been satisfied and control has transferred to the customer, which is generally upon shipment. Deferred revenue is usually recognized within a year or less from the date of the customer’s advance payment. At December 31, 2020 and 2019, $24.3 million and $12.3 million, respectively, of deferred revenue was recorded as a component of other current liabilities in the Consolidated Balance Sheets.Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)58Table of Contents WESCO INTERNATIONAL, INC. AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED) WESCO’s revenues are adjusted for variable consideration, which includes customer volume rebates, returns, and discounts. WESCO measures variable consideration by estimating expected outcomes using analysis and inputs based upon historical data, as well as current and forecasted information. Variable consideration is reviewed by management on a monthly basis and revenue is adjusted accordingly. Variable consideration reduced revenue for the years ended December 31, 2020, 2019 and 2018 by approximately $269.5 million, $106.6 million and $107.4 million, respectively. As of December 31, 2020 and 2019, the Company's estimated product return obligation was $38.9 million and $4.4 million, respectively. Shipping and handling costs are recognized in net sales when they are billed to the customer. These costs are recognized as a component of selling, general and administrative expenses when WESCO does not bill the customer. WESCO has elected to recognize shipping and handling costs as a fulfillment cost. Shipping and handling costs recorded as a component of selling, general and administrative expenses totaled $149.3 million, $71.7 million and $74.1 million for the years ended December 31, 2020, 2019 and 2018, respectively. 4. FAIR VALUE OF FINANCIAL INSTRUMENTS The Company’s financial instruments primarily consist of cash and cash equivalents, accounts receivable, accounts payable, bank overdrafts, outstanding indebtedness, foreign currency forward contracts, and benefit plan assets. The fair value of the Company's benefit plan assets is disclosed in Note 14, "Employee Benefit Plans" and except for outstanding indebtedness and foreign currency forward contracts, the carrying value of the Company’s remaining financial instruments approximates fair value. The Company uses a market approach to determine the fair value of its debt instruments, utilizing quoted prices in active markets, interest rates and other relevant information generated by market transactions involving similar instruments. Therefore, the inputs used to measure the fair value of the Company's debt instruments are classified as Level 2 within the fair value hierarchy. The carrying value of WESCO's debt instruments with fixed interest rates was $3,730.1 million and $850.0 million as of December 31, 2020 and 2019, respectively. The estimated fair value of this debt was $4,084.7 million and $866.2 million as of December 31, 2020 and 2019, respectively. The reported carrying values of WESCO's indebtedness with variable interest rates approximated their fair values as of December 31, 2020 and 2019. The increase in carrying value and estimated fair value of fixed rate debt is primarily due to higher outstanding borrowings related to the Anixter merger. The Company purchases foreign currency forward contracts to minimize the effect of fluctuating foreign currency- denominated accounts on its earnings. The foreign currency forward contracts are not designated as hedges for accounting purposes. The Company's strategy is to negotiate terms for its derivatives and other financial instruments to be highly effective, such that the change in the value of the derivative offsets the impact of the underlying hedge. Its counterparties to foreign currency forward contracts have investment-grade credit ratings. The Company regularly monitors the creditworthiness of its counterparties to ensure no issues exist that could affect the value of its derivatives. The Company does not hedge 100% of its foreign currency-denominated accounts. In addition, the results of hedging can vary significantly based on various factors, such as the timing of executing foreign currency forward contracts versus the movement of currencies as well as the fluctuations in the account balances throughout each reporting period. The fair value of foreign currency forward contracts is based on the difference between the contract rate and the current exchange rate. The fair value of foreign currency forward contracts is measured using observable market information. These inputs would be considered Level 2 in the fair value hierarchy. At December 31, 2020, foreign currency forward contracts were revalued at then-current foreign exchange rates with the changes in valuation reflected directly in other non-operating expenses ("other, net") in the Consolidated Statements of Income and Comprehensive Income offsetting the transaction gain (loss) recorded on foreign currency-denominated accounts. At December 31, 2020, the gross and net notional amounts of foreign currency forward contracts outstanding were approximately $111.9 million. While all of the Company's foreign currency forward contracts are subject to master netting arrangements with its counterparties, assets and liabilities related to these contracts are presented on a gross basis within the Consolidated Balance Sheets. The gross fair values of assets and liabilities related to foreign currency forward contracts were immaterial. 59 5. GOODWILL AND INTANGIBLE ASSETSGoodwillThe following table sets forth the changes in the carrying value of goodwill:Year Ended December 31, 2020 EESCSSUBSTotal (In thousands)Beginning balance January 1, 2020$ 573,447 $ 235,711 $ 949,882 $ 1,759,040 Adjustments to goodwill for acquisitions (Note 6)(1) (2) (3) (4) 264,538 868,936 250,553 1,384,027 Foreign currency exchange rate changes 15,471 10,853 17,778 44,102 Ending balance December 31, 2020(4)$ 853,456 $ 1,115,500 $ 1,218,213 $ 3,187,169 (1) Adjustments to goodwill include the final allocation of the purchase price paid for SLS, which is reflected in the EES segment.(2) Adjustments to goodwill include an increase of $33.9 million resulting from the out-of-period adjustment related to inventory cost absorption accounting, as described in Note 2, "Accounting Policies", which affected the EES, CSS and UBS segments by $20.2 million, $2.0 million, and $11.7 million, respectively.(3) The effect of the merger with Anixter on the Company's reportable segments is disclosed in Note 17, "Business Segments".(4) Adjustments to goodwill include $26.1 million that is classified as held for sale on the UBS segment , as disclosed in Note 7, "Assets and Liabilities Held for Sale".Year Ended December 31, 2019 EESCSSUBSTotal (In thousands)Beginning balance January 1, 2019$ 542,704 $ 234,449 $ 945,450 $ 1,722,603 Adjustments to goodwill for acquisitions (Note 6) 5,767 — — 5,767 Foreign currency exchange rate changes 24,976 1,262 4,432 30,670 Ending balance December 31, 2019$ 573,447 $ 235,711 $ 949,882 $ 1,759,040 Certain triggering events occurred during the first quarter of 2020, including the effect of the ongoing macroeconomic disruption and uncertainty caused by the COVID-19 pandemic, as well as the decline in the Company's share price and market capitalization, both of which indicated that the carrying value of goodwill and indefinite-lived intangible assets may not be recoverable. Accordingly, the Company performed an interim test for impairment as of March 31, 2020. There were no impairment losses identified as a result of this interim test.As disclosed in Note 2, "Accounting Policies", the Company identified new operating segments during the third quarter of 2020, which changed the composition of its reporting units. Accordingly, the Company reassigned goodwill to the new reporting units using a relative fair value allocation approach. The Company performed a goodwill impairment test immediately before and after it reorganized its reporting structure. Goodwill was tested for impairment on a reporting unit level and the evaluation involved comparing the fair value of each reporting unit to its carrying value. The fair values of the Company's reporting units were determined using a discounted cash flow analysis, and consideration was also given to market multiples. In performing the quantitative assessments, management used expected operating margins supported by a combination of historical results, current forecasts, market data and recent economic events, which are categorized within Level 3 of the fair value hierarchy. The Company used a discount rate that reflects market participants' cost of capital. There were no impairment losses identified as a result of these tests. Although all of the Company's reorganized reporting units had fair values that exceeded the respective carrying values, the EES reporting unit with goodwill of $809.9 million had an estimated fair value that exceeded its respective carrying value by less than 10%. As a result, the EES reporting unit is more susceptible to impairment risk from adverse macroeconomic conditions and if such conditions were to persist the underlying cash flows used to estimate fair value may impact the recoverability of goodwill.Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)60The Company performed its annual impairment tests of goodwill and indefinite-lived intangible assets during the fourth quarter by assessing qualitative factors to determine whether it was more likely than not that the fair value of a reporting unit was less than its carrying amount. In performing this qualitative assessment, the Company assessed relevant events and circumstances, including macroeconomic conditions, industry and market considerations, cost factors, overall financial performance, other relevant events such as changes in key personnel, changes in the composition or carrying amount of the net assets of a reporting unit, and sustained decreases in share price. As a result of this assessment, the Company determined that the fair values of its reporting units continued to exceed the respective carrying amounts and, therefore, a quantitative impairment test was unnecessary.The determination of fair value of the reporting units involves significant management judgment, particularly as it relates to the underlying assumptions and factors around expected operating margins and discount rate. Due to the ongoing uncertainty surrounding the current macroeconomic environment and conditions in the markets in which WESCO operates, as well as the risk that the Company may not fully realize cost savings, operating synergies or revenue improvement as a result of its acquisition of Anixter, there can be no assurance that the fair values of the Company's reporting units will exceed their carrying values in the future, and that goodwill and indefinite-lived intangible assets will be fully recoverable.Intangible AssetsThe components of intangible assets are as follows: December 31, 2020December 31, 2019Life (in years)Gross CarryingAmount (1)AccumulatedAmortization (1)NetCarryingAmountGross CarryingAmount (1)AccumulatedAmortization (1)NetCarryingAmount (In thousands)Intangible assets: TrademarksIndefinite$ 833,793 $ — $ 833,793 $ 98,699 $ — $ 98,699 Customer relationships(2)10 - 20 1,434,554 (227,585) 1,206,969 358,341 (201,962) 156,379 Distribution agreements(2)10 - 19 29,212 (21,040) 8,172 37,371 (25,294) 12,077 Trademarks(2)10 - 15 24,898 (11,415) 13,483 24,800 (9,319) 15,481 Non-compete agreements2 - 5 4,462 (1,384) 3,078 196 (180) 16 Patents10 — — — 48,310 (43,687) 4,623 $ 2,326,919 $ (261,424) $ 2,065,495 $ 567,717 $ (280,442) $ 287,275 (1)Excludes the original cost and related accumulated amortization of fully-amortized intangible assets.(2)The net carrying amount as of December 31, 2020 excludes $1.0 million of trademarks, $3.3 million of customer relationships and $1.4 million of distribution agreements that are classified as held for sale, as disclosed in Note 7, "Assets and Liabilities Held for Sale".Amortization expense related to intangible assets totaled $66.5 million, $35.5 million and $35.9 million for the years ended December 31, 2020, 2019 and 2018, respectively.The following table sets forth the estimated amortization expense for intangible assets for the next five years and thereafter:For the year ending December 31,(In thousands)2021$ 86,619 2022 83,628 2023 81,400 2024 80,087 2025 76,829 Thereafter 823,139 Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)616. ACQUISITIONSAnixter International Inc.As described in Note 1, "Organization", on June 22, 2020, WESCO completed its previously announced merger with Anixter. The Company used the net proceeds from the issuance of senior unsecured notes, borrowings under its revolving credit facility and accounts receivable securitization facility (as described further in Note 10, "Debt"), as well as cash on hand, to finance the acquisition of Anixter and related transaction costs.At the effective time of the Merger, each outstanding share of common stock of Anixter (subject to limited exceptions) was converted into the right to receive (i) $72.82 in cash, (ii) 0.2397 shares of common stock of WESCO, par value $0.01 per share (the “WESCO Common Stock”) and (iii) 0.6356 depositary shares, each representing a 1/1,000th interest in a share of newly issued fixed-rate reset cumulative perpetual preferred stock of WESCO, Series A, with a $25,000 stated amount per whole preferred share and an initial dividend rate equal to 10.625%.Anixter is a leading distributor of network and security solutions, electrical and electronic solutions, and utility power solutions with locations in over 300 cities across approximately 50 countries, and 2019 annual sales of more than $8 billion. The Merger brought together two companies with highly compatible capabilities and characteristics. The combination of WESCO and Anixter created an enterprise with scale and should afford the Company the opportunity to digitize its business, and expand its services portfolio and supply chain offerings.The total preliminary estimated fair value of consideration transferred for the Merger consisted of the following:(In thousands)Cash portion attributable to common stock outstanding$ 2,476,010 Cash portion attributable to options and restricted stock units outstanding 87,375 Fair value of cash consideration 2,563,385 Common stock consideration 313,512 Series A preferred stock consideration 573,786 Fair value of equity consideration 887,298 Extinguishment of Anixter obligations, including accrued and unpaid interest 1,247,653 Total purchase consideration$ 4,698,336 Supplemental cash flow disclosure related to acquisitions:Cash paid for acquisition$ 3,811,038 Less: Cash acquired (103,463) Cash paid for acquisition, net of cash acquired$ 3,707,575 The Merger was accounted for as a business combination with WESCO acquiring Anixter in accordance with Accounting Standards Codification (“ASC”) 805, Business Combinations. Under the acquisition method of accounting, the preliminary purchase consideration was allocated to the identified assets acquired and liabilities assumed based on their respective acquisition date fair value, with any excess allocated to goodwill. The fair value estimates were based on income, market and cost valuation methods using primarily unobservable inputs developed by management, which are categorized within Level 3 of the fair value hierarchy. Specifically, the fair values of the identified trademark and customer relationship intangible assets were estimated using the relief-from-royalty and multi-period excess earnings methods, respectively. Significant inputs used to value these identifiable intangible assets included projected revenues and expected operating margins, customer attrition rates, discount rates, royalty rates, and applicable income tax rates. The excess purchase consideration recorded to goodwill is not deductible for income tax purposes, and has been assigned to the Company's reportable segments based on their relative fair values, as disclosed in Note 5, "Goodwill and Intangible Assets". The resulting goodwill is primarily attributable to Anixter's workforce, significant cross-selling opportunities in additional geographies, enhanced scale, and other operational efficiencies.Since the initial measurement of the identified assets acquired and liabilities assumed, the Company has recognized adjustments to inventories of $8.2 million, operating lease assets of $18.0 million, total identifiable intangible assets of $5.4 million, other noncurrent assets of $15.5 million, operating lease liabilities of $17.0 million, deferred income taxes of $27.5 million and other noncurrent liabilities of $38.7 million. Certain other measurement period adjustments were made to the identified assets acquired and liabilities assumed, none of which were significant, individually or in aggregate. The net impact of these adjustments was an increase to goodwill of $2.4 million.Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)62The estimated fair values of assets acquired and liabilities assumed are based on preliminary calculations and valuations using estimates and assumptions at the time of acquisition. The determination of the fair values of assets acquired and liabilities assumed, especially those related to identifiable intangible assets, is preliminary due to the complexity of combining multibillion dollar businesses. Accordingly, as the Company obtains additional information during the measurement period (not to exceed one year from the acquisition date), estimates and assumptions for the preliminary purchase consideration allocations may change materially.The following table sets forth the preliminary allocation of the purchase consideration to the respective fair value of assets acquired and liabilities assumed for the acquisition of Anixter:(In thousands)AssetsCash and cash equivalents$ 103,463 Trade accounts receivable 1,306,900 Other accounts receivable 116,386 Inventories 1,416,582 Prepaid expenses and other current assets 54,978 Property, buildings and equipment 211,721 Operating lease assets 280,285 Intangible assets 1,838,065 Goodwill 1,370,396 Other assets 139,760 Total assets$ 6,838,536 LiabilitiesAccounts payable$ 920,163 Accrued payroll and benefit costs 69,480 Short-term debt and current portion of long-term debt 13,225 Other current liabilities 222,119 Long-term debt 77,617 Operating lease liabilities 217,303 Deferred income taxes 374,734 Other noncurrent liabilities 245,559 Total liabilities$ 2,140,200 Fair value of net assets acquired, including goodwill and intangible assets$ 4,698,336 Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)63The following table sets forth the preliminary identifiable intangible assets and their estimated weighted-average useful lives:Identifiable Intangible AssetsEstimated Fair ValueWeighted-Average Estimated Useful Life in Years(1)(In thousands)Customer relationships$ 1,098,900 19Trademarks 735,000 IndefiniteNon-compete agreements 4,165 2Total identifiable intangible assets$ 1,838,065 (1) Measurement period adjustments include an update to the estimated useful lives initially assigned to customer relationships, which resulted in income of $6.4 million during the year ended December 31, 2020.The results of operations of Anixter are included in the consolidated financial statements beginning on June 22, 2020, the acquisition date. For the year ended December 31, 2020, the consolidated statement of income includes $4.5 billion of net sales and $180.0 million of income from operations for Anixter. Transaction costs related to the merger were comprised of legal, advisory and other costs of $132.2 million, which are included in selling, general and administrative expenses for the year ended December 31, 2020.Pro Forma Financial InformationThe following unaudited pro forma financial information presents combined results of operations for the periods presented, as if the Company had completed the Merger on January 1, 2019. The unaudited pro forma financial information includes adjustments to amortization and depreciation for intangible assets and property, buildings and equipment, adjustments to interest expense for the additional indebtedness incurred to complete the acquisition (including the amortization of debt discount and issuance costs), transaction costs, change in control and severance costs, dividends accrued on the Series A preferred stock, compensation expense associated with the WESCO phantom stock unit awards described in Note 14, "Employee Benefit Plans", as well as the respective income tax effects of such adjustments. For the year ended December 31, 2020, adjustments totaling $7.0 million increased the unaudited pro forma net income attributable to common stockholders, and adjustments totaling $201.3 million decreased the unaudited pro forma net income attributable to common stockholders for the year ended December 31, 2019. The unaudited pro forma financial information does not reflect any cost savings, operating synergies or revenue enhancements that WESCO may achieve as a result of its acquisition of Anixter, the costs to integrate the operations of WESCO and Anixter or the costs necessary to achieve these cost savings, operating synergies and revenue enhancements. The unaudited pro forma financial information presented below is not necessarily indicative of consolidated results of operations of the combined business had the acquisition occurred at the beginning of the respective fiscal years, nor is it necessarily indicative of future results of operations of the combined company.Year Ended(In thousands)December 31, 2020December 31, 2019Pro forma net sales$ 16,016,902 $ 17,204,472 Pro forma net income attributable to common stockholders 119,839 285,100 Sylvania Lighting Services Corp.On March 5, 2019, WESCO Distribution, Inc. ("WESCO Distribution"), through its WESCO Services, LLC subsidiary, acquired certain assets and assumed certain liabilities of Sylvania Lighting Services Corp. ("SLS"). Headquartered in Wilmington, Massachusetts, SLS offers a full spectrum of energy-efficient lighting upgrade, retrofit, and renovation solutions with annual sales of approximately $100 million and approximately 220 employees across the U.S. and Canada. WESCO Distribution funded the purchase price paid at closing with borrowings under its then outstanding accounts receivable securitization facility. The purchase price was allocated to the respective assets and liabilities based upon their estimated fair values as of the acquisition date, resulting in goodwill of $11.6 million, which is deductible for tax purposes.Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)64The following table sets forth the consideration paid for the acquisition of SLS:Year EndedDecember 31, 2019(In thousands)Fair value of assets acquired$ 34,812 Fair value of liabilities assumed 7,070 Cash paid for acquisition$ 27,742 7. ASSETS AND LIABILITIES HELD FOR SALEOn August 6, 2020, the Company entered into a Consent Agreement with the Competition Bureau of Canada regarding the merger with Anixter. Under the Consent Agreement, the Company agreed to divest certain legacy WESCO businesses in Canada, which had total sales of approximately $120 million in 2019. Accordingly, the Company determined that the assets and liabilities of these legacy WESCO businesses in Canada met the held for sale criteria as of December 31, 2020. These businesses did not meet the criteria to be classified as discontinued operations.The assets and liabilities classified as held for sale were as follows:As ofDecember 31, 2020(In thousands) Trade accounts receivable, net$ 4,258 Inventories 16,438 Prepaid expenses and other current assets 395 Property, buildings and equipment, net 263 Operating lease assets 1,938 Intangible assets, net 5,722 Goodwill 26,059 Total assets held for sale$ 55,073 Accounts payable$ 3,639 Other current liabilities 541 Operating lease liabilities 1,537 Total liabilities held for sale$ 5,717 Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)658. PROPERTY, BUILDINGS AND EQUIPMENTThe following table sets forth the components of property, buildings and equipment: As of December 31, 2020(1)2019 (In thousands)Buildings and leasehold improvements$ 169,873 $ 110,056 Furniture, fixtures and equipment 266,317 162,029 Software costs 235,666 127,919 671,856 400,004 Accumulated depreciation and amortization (312,106) (268,415) 359,750 131,589 Land 26,409 24,106 Construction in progress 12,998 25,753 $ 399,157 $ 181,448 (1) The components of property, buildings and equipment as of December 31, 2020 exclude a total of $0.3 million that is classified as held for sale, as disclosed in Note 7, "Assets and Liabilities Held for Sale".Depreciation expense was $40.8 million, $15.9 million and $17.3 million, and capitalized software amortization was $14.3 million, $10.6 million and $9.8 million, in 2020, 2019 and 2018, respectively. The unamortized software cost was $123.9 million and $29.8 million as of December 31, 2020 and 2019, respectively. Furniture, fixtures and equipment include finance leases of $25.7 million and $6.5 million and related accumulated amortization of $7.9 million and $5.1 million as of December 31, 2020 and 2019, respectively.9. LEASESWESCO leases substantially all of its real estate, as well as automobiles, trucks and other equipment under lease arrangements classified as operating.The Company's finance leases, which are recorded in the Consolidated Balance Sheets as a component of property, buildings and equipment, current portion of long-term debt and long-term debt, are not material to the consolidated financial statements and notes thereto. Accordingly, finance leases have not been disclosed herein.The following table sets forth supplemental balance sheet information related to operating leases for the periods presented: As of December 31,(In thousands)2020(1)2019Operating lease assets$ 534,705 $ 235,834 Current operating lease liabilities(2) 128,322 62,046 Noncurrent operating lease liabilities 414,889 179,830 Total operating lease liabilities$ 543,211 $ 241,876 (1) Operating lease assets and liabilities of $1.9 million and $2.1 million, respectively, are classified as held for sale as of December 31, 2020, as disclosed in Note 7, "Assets and Liabilities Held for Sale".(2) Current operating lease liabilities are recorded as a component of other current liabilities in the Consolidated Balance Sheets.Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)66The following table sets forth the Company's total lease cost, which is recorded as a component of selling, general and administrative expenses, for the periods presented:Year Ended December 31,(In thousands)20202019Operating lease cost$ 127,725 $ 73,613 Short-term lease cost 494 90 Variable lease cost 36,230 23,385 Total lease cost$ 164,449 $ 97,088 Variable lease cost consists of the non-lease components described in Note 2, "Accounting Policies", as well as taxes and insurance for WESCO's leased real estate.The following table sets forth supplemental cash flow information related to operating leases for the periods presented:Year Ended December 31,(In thousands)20202019Operating cash flows from operating leases$ 117,106 $ 75,775 Right-of-use assets obtained in exchange for new operating lease liabilities 121,207 60,586 As of December 31, 2020 and 2019, the weighted-average remaining lease term for operating leases was 6.1 years and 5.3 years, respectively. The weighted-average discount rate used to measure operating leases was 4.6% as of December 31, 2020 and 2019.The following table sets forth the maturities of the Company's operating lease liabilities and reconciles the respective undiscounted payments to the operating lease liabilities in the Consolidated Balance Sheet as of December 31, 2020:(In thousands)2021$ 155,071 2022 127,851 2023 100,746 2024 72,847 2025 46,730 Thereafter 124,127 Total undiscounted operating lease payments 627,372 Less: imputed interest (84,161) Total operating lease liabilities$ 543,211 Operating lease payments include $17.4 million related to options to extend lease terms that are reasonably certain of being exercised. As of December 31, 2020, the Company has additional leases related to facilities that have not yet commenced of $2.6 million. These operating leases will commence in 2021 with lease terms of seven to ten years.Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)6710. DEBTThe following table sets forth WESCO’s outstanding indebtedness: As of December 31, 20202019 (In thousands)International lines of credit$ 29,575 $ 26,255 Accounts Receivable Securitization Facility 950,000 415,000 Revolving Credit Facility 250,000 — 5.375% Senior Notes due 2021 500,000 500,000 5.50% Senior Notes due 2023 58,636 — 5.375% Senior Notes due 2024 350,000 350,000 6.00% Senior Notes due 2025 4,173 — 7.125% Senior Notes due 2025 1,500,000 — 7.250% Senior Notes due 2028, less debt discount of $9,332 1,315,668 — Finance lease obligations 17,931 1,373 Total debt 4,975,983 1,292,628 Plus: Fair value adjustment to the Anixter Senior Notes 1,650 — Less: Unamortized debt issuance costs (78,850) (8,876) Less: Short-term debt and current portion of long-term debt (528,830) (26,685) Total long-term debt$ 4,369,953 $ 1,257,067 International Lines of CreditCertain foreign subsidiaries of WESCO have entered into uncommitted lines of credit, some of which are overdraft facilities, to support local operations. The maximum borrowing limit varies by facility and ranges between $2.0 million and $31.0 million. The international lines of credit generally are renewable on an annual basis and certain facilities are fully and unconditionally guaranteed by WESCO Distribution. Accordingly, certain borrowings under these lines directly reduce availability under the Revolving Credit Facility. The applicable interest rate for borrowings under these lines of credit varies by country and is governed by the applicable loan agreement. The average interest rate for these facilities was 3.40% and 6.32% at December 31, 2020 and 2019, respectively.Accounts Receivable Securitization FacilityOn June 22, 2020, WESCO Distribution amended its accounts receivable securitization facility (the “Receivables Facility”) pursuant to the terms and conditions of a Fifth Amended and Restated Receivables Purchase Agreement (the “Receivables Purchase Agreement”), by and among WESCO Receivables Corp. (“WESCO Receivables”), WESCO Distribution, the various purchaser groups from time to time party thereto and PNC Bank, National Association, as Administrator. The Receivables Purchase Agreement amends and restates the amended and restated receivables purchase agreement entered into on September 24, 2015 (the “Existing Receivables Purchase Agreement”).The Receivables Purchase Agreement, among other things, increased the purchase limit under the Existing Receivables Purchase Agreement from $600 million to $1,025 million, with the opportunity to exercise an accordion feature that permits increases in the purchase limit of up to $375 million, extended the term of the Receivables Facility to June 22, 2023 and added and amended certain defined terms. Borrowings under the Receivables Facility bear interest at the 30-day LIBOR rate, with a LIBOR floor of 0.5%, plus applicable spreads. The interest rate spread of the Receivables Facility increased from 0.95% to 1.20%. The commitment fee remained unchanged at 0.45%.On December 14, 2020, WESCO Distribution amended its Receivables Facility pursuant to the terms and conditions of a First Amendment to the Fifth Amended and Restated Receivables Purchase Agreement (the “Receivables Amendment”). The Receivables Amendment amends the Receivables Purchase Agreement and permits an increase to the purchase limit from $1,025 million to $1,200 million. The maturity date, interest rate spread, and commitment fee of the Receivables Facility remain unchanged.Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)68Table of Contents WESCO INTERNATIONAL, INC. AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED) Under the Receivables Facility, WESCO sells, 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 financial institutions for cash while maintaining a subordinated undivided interest in the receivables, in the form of overcollateralization. Since WESCO maintains control of the transferred receivables, 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. 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, 2020 and 2019, accounts receivable eligible for securitization totaled $1,476.1 million and $809.5 million, respectively. The Consolidated Balance Sheets as of December 31, 2020 and 2019 include $950.0 million and $415.0 million, respectively, of accounts receivable balances legally sold to third parties, as well as borrowings for equal amounts. At December 31, 2020, the interest rate for this facility was approximately 1.6%. Revolving Credit Facility On June 22, 2020, WESCO, WESCO Distribution and certain other subsidiaries of WESCO entered into a $1,100 million revolving credit facility (the “Revolving Credit Facility”), as a replacement of WESCO Distribution’s revolving credit facility entered into on September 26, 2019, pursuant to the terms and conditions of a Fourth Amended and Restated Credit Agreement, dated as of June 22, 2020 (the “Revolving Credit Agreement”), among WESCO Distribution, the other U.S. borrowers party thereto (collectively, the “U.S. Borrowers”), WESCO Distribution Canada LP (“WESCO Canada”), the other Canadian borrowers party thereto (collectively, the “Canadian Borrowers”), WESCO, the lenders party thereto and Barclays Bank PLC, as the administrative agent. The Revolving Credit Facility contains a letter of credit sub-facility of up to $175 million and an accordion feature allowing WESCO Distribution to request increases to the borrowing commitments under the Revolving Credit Facility of up to $500 million in the aggregate, subject to customary conditions. The Revolving Credit Facility matures in June 2025. On December 14, 2020, WESCO Distribution and certain other subsidiaries of WESCO entered into an amendment to the Revolving Credit Facility pursuant to the terms and conditions of a First Amendment to Fourth Amended and Restated Credit Agreement, dated as of December 14, 2020 (the “Revolver Amendment”), among WESCO Distribution, the other U.S. borrowers party thereto, WESCO Distribution Canada LP, the other Canadian borrowers party thereto, WESCO, the lenders party thereto and Barclays Bank PLC, as administrative agent. The Revolver Amendment permits an increase to the revolving commitments from $1,100 million to $1,200 million and amends certain other defined terms. No other material terms were changed. The obligations of WESCO Distribution and the other U.S. Borrowers under the Revolving Credit Facility have been guaranteed by WESCO and certain of WESCO Distribution’s subsidiaries (including certain subsidiaries of Anixter). The obligations of WESCO Canada and the other Canadian Borrowers under the Revolving Credit Facility (including certain subsidiaries of Anixter) have been guaranteed by certain subsidiaries of WESCO Canada and the other Canadian Borrowers. The Revolving Credit Facility is secured by (i) substantially all assets of WESCO Distribution, the other U.S. Borrowers and certain of WESCO Distribution’s subsidiaries (including certain subsidiaries of Anixter), other than, among other things, real property and accounts receivable sold or intended to be sold pursuant to WESCO Distribution’s Receivables Facility, and (ii) substantially all assets of WESCO Canada, the other Canadian Borrowers and certain of WESCO Canada’s subsidiaries, other than, among other things, real property, in each case, subject to customary exceptions and limitations. The applicable interest rate for borrowings under the Revolving Credit Facility includes interest rate spreads based on available borrowing capacity that range between 1.25% and 1.50% for LIBOR-based borrowings and 0.25% and 0.50% for prime rate-based borrowings. At December 31, 2020, the interest rate for this facility was approximately 1.6%. The Revolving Credit Agreement requires compliance with conditions that must be satisfied prior to any borrowing as well as ongoing compliance with certain customary affirmative and negative covenants. The Revolving Credit Agreement contains customary events of default. Upon the occurrence and during the continuance of an event of default, the commitments of the lenders may be terminated, and all outstanding obligations of the loan parties under the Revolving Credit Facility may be declared immediately due and payable. During 2020, WESCO borrowed $1,197.9 million under the prior and new revolving credit facilities and made repayments in the aggregate amount of $948.0 million. During 2019, aggregate borrowings and repayments under prior revolving credit agreements were $715.4 million and $767.4 million, respectively. WESCO had $801.5 million available under the Revolving Credit facility at December 31, 2020, after giving effect to $48.5 million of outstanding letters of credit, as compared to $563.8 million available under the prior revolving credit facility at December 31, 2019, after giving effect to $28.4 million of outstanding letters of credit, $36.1 million of surety bonds, and $7.8 million of other reserves. 69 Table of Contents WESCO INTERNATIONAL, INC. AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED) 5.375% Senior Notes due 2021 In November 2013, WESCO Distribution issued $500 million aggregate principal amount of 5.375% Senior Notes due 2021 (the "2021 Notes") through a private offering exempt from the registration requirements of the Securities Act of 1933, as amended (the “Securities Act”). The 2021 Notes were issued at 100% of par and are governed by an indenture (the “2021 Indenture”) entered into on November 26, 2013 between WESCO International and U.S. Bank National Association, as trustee. The 2021 Notes are unsecured senior obligations of WESCO Distribution and are guaranteed on a senior unsecured basis by WESCO International. The 2021 Notes bear interest at a stated rate of 5.375% per annum, payable semi-annually in arrears on June 15 and December 15 of each year. In addition, WESCO incurred costs related to the issuance of the 2021 Notes totaling $8.4 million, which are recorded as a reduction to the carrying value of the debt and are being amortized over the life of the notes. The 2021 Notes mature on December 15, 2021 and at any time all or a part may be redeemed by WESCO Distribution. The net proceeds of the 2021 Notes were used to prepay a portion of the U.S. sub-facility of the term loan due 2019. Under the terms of a registration rights agreement dated as of November 26, 2013 among WESCO Distribution, WESCO International and Merrill Lynch, Pierce, Fenner & Smith Incorporated, as the representative of the initial purchasers of the 2021 Notes, WESCO Distribution and WESCO International agreed to register under the Securities Act notes having terms identical in all material respects to the 2021 Notes (the “2021 Exchange Notes”) and to make an offer to exchange the 2021 Exchange Notes for the 2021 Notes. WESCO Distribution launched the exchange offer on June 12, 2014 and the exchange offer expired on July 17, 2014. On December 15, 2020, WESCO Distribution exercised its right to redeem the entire $500 million aggregate principal amount of the 2021 Notes, and U.S. Bank, National Association, as trustee under the indenture governing the 2021 Notes, issued a notice of redemption to registered holders of the 2021 Notes. The date fixed for the redemption of the 2021 Notes is January 14, 2021 (the “Redemption Date”). The 2021 Notes will be redeemed at a redemption price equal to 100% of the principal amount of the 2021 Notes plus accrued interest on the 2021 Notes to, but not including, the Redemption Date. 5.375% Senior Notes due 2024 In June 2016, WESCO Distribution issued $350 million aggregate principal amount of 5.375% Senior Notes due 2024 (the "2024 Notes") through a private offering exempt from the registration requirements of the Securities Act. The 2024 Notes were issued at 100% of par and are governed by an indenture (the “2024 Indenture”) entered into on June 15, 2016 among WESCO Distribution, as issuer, WESCO International, as parent guarantor, and U.S. Bank National Association, as trustee. The 2024 Notes are unsecured senior obligations of WESCO Distribution and are guaranteed on a senior unsecured basis by WESCO International. The 2024 Notes bear interest at a stated rate of 5.375% per annum, payable semi-annually in arrears on June 15 and December 15 of each year. WESCO incurred costs totaling $6.0 million to issue the 2024 Notes, which are recorded as a reduction to the carrying value of the debt and are being amortized over the life of the notes. The 2024 Notes mature on June 15, 2024. The Company used the net proceeds to redeem its 6.0% Convertible Senior Debentures due 2029 on September 15, 2016. Under the terms of a registration rights agreement dated as of June 15, 2016 among WESCO Distribution, as the issuer, WESCO International, as parent guarantor, and Goldman, Sachs & Co., as representative of the initial purchasers of the 2024 Notes, WESCO Distribution and WESCO International agreed to register under the Securities Act notes having terms identical in all material respects to the 2024 Notes (the “2024 Exchange Notes”) and to make an offer to exchange the 2024 Exchange Notes for the 2024 Notes. WESCO Distribution launched the exchange offer on December 28, 2016 and the exchange offer expired on January 31, 2017. Any time between June 15, 2020 and June 14, 2021, WESCO Distribution may redeem all or a part of the 2024 Notes at a redemption price equal to 102.688% of the principal amount. Between June 15, 2021 and June 14, 2022, WESCO Distribution may redeem all or a part of the 2024 Notes at a redemption price equal to 101.344% of the principal amount. On and after June 15, 2022, WESCO Distribution may redeem all or a part of the 2024 Notes at a redemption price equal to 100% of the principal amount. The 2024 Indenture contains customary covenants and events of default. Upon a change of control, the holders of the 2024 Notes have the right to require WESCO Distribution to repurchase all or any part of the 2024 Notes at a redemption price equal to 101% of the principal amount thereof, plus accrued and unpaid interest. 70 Table of Contents WESCO INTERNATIONAL, INC. AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED) 5.50% Senior Notes due 2023 6.00% Senior Notes due 2025 On April 30, 2020, in connection with the Merger, WESCO Distribution commenced offers to purchase for cash (each, a “WESCO Tender Offer” and, together the “WESCO Tender Offers”) any and all of Anixter Inc.’s outstanding (i) 5.50% Senior Notes due 2023 (the “Anixter 2023 Senior Notes”), $350.0 million aggregate principal amount, issued under the Indenture, dated as of August 18, 2015 (the “Anixter 2023 Indenture”), by and among Anixter Inc., Anixter and Wells Fargo Bank, National Association, as trustee, and (ii) 6.00% Senior Notes due 2025 (the “Anixter 2025 Senior Notes” and, together with the Anixter 2023 Senior Notes, the "Anixter Senior Notes"), $250.0 million aggregate principal amount, issued under the Indenture, dated as of November 13, 2018 (the “Anixter 2025 Indenture” and, together with the Anixter 2023 Indenture, the “Anixter Indentures”) by and among Anixter Inc., Anixter and Wells Fargo Bank, National Association, as trustee. Concurrent with the WESCO Tender Offers, Anixter Inc. commenced consent solicitations to amend the definition of "Change of Control" under the applicable Indenture to exclude the Merger and related transactions and expressly permit a merger between Anixter Inc. and Anixter (the “Anixter Consent Solicitations”). On June 23, 2020 (the "Expiration Date"), following the completion of the Merger, the WESCO Tender Offers and Anixter Consent Solicitations expired and settled. Pursuant to the terms of the Offer to Purchase and Consent Solicitation Statement, dated April 30, 2020, holders of the Anixter Senior Notes that validly tendered and did not validly withdraw prior to such date, received total tender offer consideration of $1,012.50 per $1,000 principal amount of Anixter Senior Notes, which amount, in each case, included an early tender payment of $50.00 per $1,000 principal amount of Anixter Senior Notes. Holders who validly delivered their consents at or prior to the Expiration Date received a consent fee of $2.50 per $1,000 principal amount of Anixter Senior Notes. As of December 31, 2020, $58.6 million and $4.2 million aggregate principal amount of the Anixter 2023 Senior Notes and Anixter 2025 Senior Notes, respectively, were outstanding. 7.125% Senior Notes due 2025 7.250% Senior Notes due 2028 On June 12, 2020, WESCO Distribution issued $1,500 million aggregate principal amount of 7.125% Senior Notes due 2025 (the “2025 Notes”) and $1,325 million aggregate principal amount of 7.250% Senior Notes due 2028 (the “2028 Notes” and, together with the 2025 Notes, the “Notes”). The 2025 Notes were issued at a price of 100.000% of the aggregate principal amount. The 2028 Notes were issued at a price of 99.244% of the aggregate principal amount. WESCO incurred costs related to the issuance of the 2025 Notes and 2028 Notes totaling $33.1 million and $29.3 million, respectively, which were recorded as a reduction to the carrying value of the debt and are being amortized over the respective lives of the notes. The Notes were issued pursuant to, and are governed by, an indenture (the “Notes Indenture”), dated as of June 12, 2020, between the Company, WESCO Distribution and U.S. Bank National Association, as trustee (the “Trustee”). The Notes and related guarantees were issued in a private transaction exempt from the Securities Act of 1933, as amended (the “Securities Act”) and have not been, and will not be, registered under the Securities Act and may not be offered or sold in the U.S. absent registration or an applicable exemption from, or in a transaction not subject to the registration requirements of the Securities Act and other applicable securities laws. The Company used the net proceeds from the issuance of the Notes, together with borrowings under its new and amended credit facilities and existing cash on hand, to finance the Merger and the other transactions contemplated by the Merger Agreement. The use of proceeds included (i) paying the cash portion of the Merger consideration to stockholders of Anixter, (ii) refinancing certain existing indebtedness of Anixter contemplated by the Merger Agreement, including financing the satisfaction and discharge, defeasance, redemption or other repayment in full of the 5.125% Senior Notes due 2021 of Anixter Inc., a wholly owned subsidiary of Anixter, and financing payments in connection with the Anixter Consent Solicitations and WESCO Tender Offers, as described above, (iii) refinancing other indebtedness of the Company, and (iv) paying fees, costs and expenses in connection with the foregoing. The Notes are unsecured and unsubordinated obligations of WESCO Distribution and are guaranteed on an unsecured, unsubordinated basis by the Company and Anixter Inc. The 2025 Notes accrue interest at a rate of 7.125% per annum, payable semi-annually in arrears on June 15 and December 15 of each year. The 2025 Notes will mature on June 15, 2025. The 2028 Notes accrue interest at a rate of 7.250% per annum, payable semi-annually in arrears on June 15 and December 15 of each year. The 2028 Notes will mature on June 15, 2028. 71 WESCO Distribution may redeem all or a part of the 2025 Notes at any time prior to June 15, 2022 by paying a “make-whole” premium plus accrued and unpaid interest, if any, to but excluding the redemption date. In addition, at any time prior to June 15, 2022, WESCO Distribution may redeem up to 35% of the 2025 Notes with the net cash proceeds from certain equity offerings. On or after June 15, 2022, WESCO Distribution may redeem all or a part of the 2025 Notes on the redemption dates and at the redemption prices specified in the Notes Indenture. WESCO Distribution may redeem all or a part of the 2028 Notes at any time prior to June 15, 2023 by paying a “make-whole” premium plus accrued and unpaid interest, if any, to but excluding the redemption date. In addition, at any time prior to June 15, 2023, WESCO Distribution may redeem up to 35% of the 2028 Notes with the net cash proceeds from certain equity offerings. On or after June 15, 2023, WESCO Distribution may redeem all or a part of the 2028 Notes on the redemption dates and at the redemption prices specified in the Notes Indenture.The Notes Indenture contains certain covenants that, among other things, limit (i) the Company’s and its subsidiaries’ ability to pay dividends on or repurchase the Company’s capital stock, incur liens on assets, engage in certain sale and leaseback transactions or sell certain assets, and (ii) the Company’s and any guarantor’s ability to sell all or substantially all of its assets to, or merge or consolidate with or into, other persons, in the case of each of the foregoing, subject to certain qualifications and exceptions, including the termination of certain of these covenants upon the Notes receiving investment grade credit ratings.The Notes Indenture contains certain events of default, including, among other things, failure to make required payments, failure to comply with certain agreements or covenants, failure to pay or acceleration of certain other indebtedness, certain events of bankruptcy and insolvency, and failure to pay certain judgments. An event of default under the Notes Indenture will allow either the Trustee or the holders of at least 25% in aggregate principal amount of the applicable series of the then-outstanding Notes to accelerate, or in certain cases, will automatically cause the acceleration of the amounts due under the applicable series of Notes.Debt Issuance CostsWESCO capitalizes costs associated with the issuance of debt and such costs are amortized over the term of the respective debt instrument on a straight-line basis. Debt issuance costs are presented in the Consolidated Balance Sheets as a direct reduction from the carrying amount of the related debt liability. Upon prepayment of debt, the Company accelerates the recognition of an appropriate amount of the costs as refinancing or extinguishment of debt. As of December 31, 2020 and 2019, unamortized debt issuance costs of $78.9 million and $8.9 million were recorded in the Consolidated Balance Sheets, respectively.Covenant ComplianceWESCO was in compliance with all relevant covenants contained in its debt agreements as of December 31, 2020.The following table sets forth the aggregate principal repayment requirements for all indebtedness for the next five years and thereafter, as of December 31, 2020:(In thousands)2021$ 529,869 2022 4,051 2023 1,016,322 2024 352,183 2025 1,756,055 Thereafter 1,326,835 Total payments on debt$ 4,985,315 Debt discount (9,332) Total debt$ 4,975,983 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 Facility and the Receivables Facility require WESCO to meet certain fixed charge coverage tests depending on availability or liquidity, respectively.Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)72Table of Contents WESCO INTERNATIONAL, INC. AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED) 11. STOCKHOLDERS' EQUITY Preferred Stock There are 20 million shares of preferred stock authorized at a par value of $0.01 per share; there are no shares issued or outstanding. 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. Series A Preferred Stock The Company's Board of Directors authorized 25,000 shares of fixed-rate reset cumulative perpetual preferred stock, Series A, with a liquidation preference of $25,000 per whole preferred share and a par value of $0.01 per share (the "Series A Preferred Stock"). Depositary shares, each representing a 1/1,000th interest in a share of Series A Preferred Stock, are registered under the Securities Act of 1933, as amended. In connection with the Merger, as described in Note 6, "Acquisitions", the Company issued 21,611,534 depositary shares, representing an interest in approximately 21,612 shares of Series A Preferred Stock. Holders of shares of the Series A Preferred Stock are entitled to receive, when, as and if declared by the Company's Board of Directors, cumulative cash dividends at an initial rate of 10.625% per annum of the $25,000 liquidation preference per share. On June 22, 2025, and every five-year period thereafter, the dividend rate on the Series A Preferred Stock resets and will be equal to the Five-year U.S. Treasury Rate plus a spread of 10.325%. Holders of the Series A Preferred Stock are not entitled to convert or exchange their shares of Series A Preferred stock into shares of any of WESCO’s other classes or series of stock or into any other security of WESCO (other than upon a change of control involving the issuance of additional shares of common stock or other change of control transaction, in each case, approved by holders of common stock). The Series A Preferred Stock has no stated maturity and will not be subject to any sinking fund, retirement fund or purchase fund or any other obligation of WESCO to redeem, repurchase or retire the Series A Preferred Stock. Holders of the Series A Preferred Stock will have limited voting rights, including the right to elect two directors to the board of directors of the Company in the event dividends on the Series A Preferred Stock remain unpaid for the equivalent of six or more full quarterly dividend periods. 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 $0.01 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. The terms of the Revolving Credit Facility, as well as the indentures governing the 2021 Notes, 2024 Notes, 2025 Notes and 2028 Notes, place certain limits on the Company's ability to declare or pay dividends and repurchase common stock. The share repurchases in 2019 and 2018, as described in Note 13, "Earnings Per Share", were made within the limits of WESCO's various credit agreements. At December 31, 2020 and 2019, no dividends had been declared and, therefore, no retained earnings were reserved for dividend payments. 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. 73 Stockholder Rights PlanOn July 17, 2020, WESCO's Board of Directors declared a dividend of one preferred share purchase right (a “Right”) for each outstanding share of common stock of WESCO, par value $0.01 per share (“WESCO Common Stock”), and adopted a stockholder rights plan, as set forth in the Rights Agreement, dated as of July 17, 2020 (the “Rights Agreement”), by and between WESCO and Computershare Trust Company, N.A., as rights agent. In general terms, the Rights Agreement works by imposing a significant penalty upon any person or group which acquires 10% or more (15% or more in the case of passive investors filing statements on Schedule 13G) of the outstanding WESCO Common Stock without the approval of the Board. The dividend Right was paid on July 27, 2020 to WESCO stockholders of record as of the close of business on July 27, 2020. The Rights Agreement provides that the Rights will expire on July 16, 2021. The Rights have no value upon issuance.12. INCOME TAXESPursuant to the enactment of the Tax Cuts and Jobs Act of 2017 (the "TCJA”) on December 22, 2017, the Company recognized the provisional income tax effects of the TCJA in the year ended December 31, 2017. During the year ended December 31, 2018, the Company completed its accounting for the income tax effects of the TCJA, which resulted in an additional deferred income tax benefit of $0.9 million and a discrete benefit of $3.4 million. During the year ended December 31, 2019, the Company further adjusted its liability for the one-time tax on the deemed repatriation of undistributed foreign earnings (the "transition tax") based upon guidance issued by the Internal Revenue Service ("IRS"), which resulted in a discrete benefit of $3.7 million. As of December 31, 2020 and 2019, a liability of $63.3 million and $36.8 million, respectively, was recorded as components of other current and noncurrent liabilities in the Consolidated Balance Sheets for the transition tax. The transition tax will be paid in installments.The accounting for the income tax effects of the TCJA is complete based on regulatory guidance issued to date. Additional guidance could be issued, which could affect the amounts described above. The Company will continue to evaluate its tax positions with respect to the TCJA as the IRS releases additional regulatory guidance. Future adjustments, if any, for tax positions taken to date will be recognized as discrete income tax expense or benefit in the period in which such guidance is issued.The following table sets forth the components of income before income taxes by jurisdiction: Year Ended December 31, 202020192018 (In thousands) United States$ 26,031 $ 198,566 $ 198,556 Foreign 96,811 83,495 82,469 Income before income taxes$ 122,842 $ 282,061 $ 281,025 The following table sets forth the components of the provision (benefit) for income taxes: Year Ended December 31, 202020192018 (In thousands) Current income taxes: Federal$ 25,605 $ 31,695 $ 28,464 State 11,322 8,616 7,458 Foreign 19,414 6,347 10,611 Total current income taxes 56,341 46,658 46,533 Deferred income taxes: Federal (17,913) 6,774 5,253 State (7,264) 1,846 1,967 Foreign (8,361) 4,585 1,917 Total deferred income taxes (33,538) 13,205 9,137 Provision for income taxes$ 22,803 $ 59,863 $ 55,670 Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)74The following table sets forth the reconciliation between the federal statutory income tax rate and the effective tax rate:Year Ended December 31,202020192018Federal statutory rate 21.0 % 21.0 % 21.0 %State income taxes, net of federal income tax benefit 1.4 3.1 2.8 Deemed repatriation of undistributed foreign earnings — (1.3) (1.2) Deferred income tax remeasurement — — (0.3) Tax effect of intercompany financing (13.4) (5.5) (5.6) Unrecognized tax benefits 2.1 (0.4) (0.1) Nondeductible expenses 5.7 0.7 1.0 Change in valuation allowance 1.8 0.6 0.6 Other — 3.0 1.6 Effective tax rate 18.6 % 21.2 % 19.8 %Undistributed earnings of the Company's foreign subsidiaries amounted to approximately $1,835.0 million at December 31, 2020. Most of these earnings have been taxed in the U.S. under either the one-time transition tax or the GILTI tax regime imposed by the TCJA. Except for a portion of foreign earnings previously taxed in the U.S. that can effectively be distributed without further material U.S. or foreign taxation, the Company continues to assert that the undistributed earnings of its foreign subsidiaries are indefinitely reinvested. To the extent the earnings of the Company's foreign subsidiaries are distributed in the form of dividends, such earnings may be subject to additional taxes. WESCO estimates that additional taxes of approximately $75.0 million would be payable upon the remittance of foreign earnings as dividends at December 31, 2020, based upon the laws in effect on that date. The Company believes that it is able to maintain a sufficient level of liquidity for its domestic operations and commitments without incurring any material tax cost to repatriate cash held by its foreign subsidiaries.The following table sets forth deferred tax assets and liabilities: As of December 31, 20202019 (In thousands) AssetsLiabilitiesAssetsLiabilitiesAccounts receivable$ 17,560 $ — $ 3,382 $ — Inventories 14,793 — — 4,580 Depreciation of property, buildings and equipment — 60,687 — 18,393 Operating leases 134,377 136,477 61,326 60,670 Amortization of intangible assets — 540,520 — 159,573 Employee benefits 53,040 — 20,641 — Stock-based compensation 14,061 — 13,792 — Tax loss carryforwards 36,923 — 10,486 — Foreign tax credit carryforwards 55,637 — 1,247 — Other 27,643 6,286 6,791 3,964 Deferred income taxes before valuation allowance 354,034 743,970 117,665 247,180 Valuation allowance (60,629) — (5,854) — Total deferred income taxes$ 293,405 $ 743,970 $ 111,811 $ 247,180 In connection with the acquisition of Anixter, WESCO recorded deferred income tax liabilities of $347.3 million, which primarily related to identifiable intangible assets for which there was no increase in tax basis.Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)75WESCO had deferred tax assets of $34.5 million and $7.9 million as of December 31, 2020 and 2019, respectively, related to foreign net operating loss carryforwards. These net operating loss carryforwards expire beginning in 2021 through 2030, while some may be carried forward indefinitely. The Company determined that certain foreign net operating loss carryforwards would not be realized before they expire. Accordingly, the Company recorded a valuation allowance of $22.3 million and $4.6 million against deferred tax assets related to certain foreign net operating loss carryforwards at December 31, 2020 and 2019, respectively. Additionally, these foreign jurisdictions had deferred tax assets of $8.2 million as of December 31, 2020 related to other future deductible temporary differences. The Company recorded a full valuation allowance against this amount as of December 31, 2020. As of December 31, 2020 and 2019, WESCO had deferred tax assets of $2.4 million and $2.6 million, respectively, related to state net operating loss carryforwards. These carryforwards expire beginning in 2024 through 2039.As of December 31, 2020 and 2019, WESCO had deferred tax assets of $55.6 million and $1.2 million, respectively, related to foreign tax credit carryforwards. The foreign tax credit carryforwards expire beginning in 2026 through 2030. The Company determined that certain foreign tax credit carryforwards will not be realized before they expire. Accordingly, the Company recorded a valuation allowance of $30.1 million and $1.2 million against deferred tax assets related to certain foreign tax credit carryforwards at December 31, 2020 and 2019, respectively.The Company is under examination by tax authorities in various jurisdictions and remains subject to examination until the applicable statutes of limitation expire. The statutes of limitation for the material jurisdictions in which the Company files income tax returns remain open as follows:United States — Federal2015 and forwardUnited States — Material States2016 and forwardCanada2012 and forwardUK2015 and forwardThe following table sets forth the reconciliation of gross unrecognized tax benefits: As of December 31, 202020192018 (In thousands)Beginning balance January 1$ 54 $ 1,293 $ 4,348 Additions for current year tax positions 14,009 — — Additions for acquired tax positions 68,048 — — Reductions for prior year tax positions (43) — — Settlements — (1,290) (2,646) Lapse in statute of limitations (15,886) — (287) Foreign currency exchange rate changes 1,893 51 (122) Ending balance December 31$ 68,075 $ 54 $ 1,293 The total amount of unrecognized tax benefits were $68.1 million and $0.1 million as of December 31, 2020 and 2019, respectively. The amount of unrecognized tax benefits that would affect the effective tax rate if recognized in the consolidated financial statements for the years ended December 31, 2020, 2019 and 2018 were $29.1 million, $0.1 million, and $1.3 million, respectively. Within the next twelve months, the amount of unrecognized tax benefits is expected to decrease by $3.6 million due to the expiration of statutes of limitation. Such change would result in a favorable effective tax rate impact of $4.2 million.The Company classifies interest related to unrecognized tax benefits as a component of net interest in the Consolidated Statement of Income and Comprehensive Income. In 2020, the Company recognized interest expense on unrecognized tax benefits of $0.3 million. The Company recognized interest income on unrecognized tax benefits of $0.8 million in 2019. In 2018, interest expense on unrecognized tax benefits was $0.2 million. As of December 31, 2020 and 2019, WESCO had a liability of $5.5 million and $0.1 million, respectively, for interest expense related to unrecognized tax benefits. The Company classifies penalties related to unrecognized tax benefits as part of income tax expense. Penalties recorded in income tax expense for 2020, 2019, and 2018 were immaterial. As of December 31, 2020, WESCO had a liability of $1.5 million for penalties related to unrecognized tax benefits.Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)7613. EARNINGS PER SHAREBasic earnings per share is computed by dividing net income attributable to common stockholders by the weighted-average number of common shares outstanding during the periods. Diluted earnings per share is computed by dividing net income attributable to common stockholders by the weighted-average common shares and common share equivalents outstanding during the periods. The dilutive effect of common share equivalents is considered in the diluted earnings per share computation using the treasury stock method, which includes consideration of equity awards.The following table sets forth the details of basic and diluted earnings per share: Year Ended December 31, 202020192018(In thousands, except per share data) Net income attributable to WESCO International, Inc.$ 100,560 $ 223,426 $ 227,343 Less: Preferred stock dividends 30,139 — — Net income attributable to common stockholders$ 70,421 $ 223,426 $ 227,343 Weighted-average common shares outstanding used in computing basic earnings per share 46,174 43,104 46,722 Common shares issuable upon exercise of dilutive equity awards 451 383 477 Weighted-average common shares outstanding and common share equivalents used in computing diluted earnings per share 46,625 43,487 47,199 Earnings per share attributable to common stockholders Basic$ 1.53 $ 5.18 $ 4.87 Diluted$ 1.51 $ 5.14 $ 4.82 For the years ended December 31, 2020, 2019 and 2018, the computation of diluted earnings per share attributable to common stockholders excluded equity awards of approximately 1.8 million, 1.7 million and 1.6 million, respectively. These shares were excluded because their effect would have been antidilutive.In December 2017, the Company's Board of Directors (the "Board") authorized the repurchase of up to $300 million of the Company's common stock through December 31, 2020 (the "Repurchase Authorization"). In October 2018, the Board approved an increase to the Repurchase Authorization from $300 million to $400 million. During the year ended December 31, 2018, the Company entered into accelerated stock repurchase agreements with a financial institution to repurchase shares of its common stock pursuant to its Repurchase Authorization. In exchange for up-front cash payments totaling $125.0 million, the Company received 2,368,738 shares, of which 365,272 shares were settled in 2019.On May 7, 2019, the Company entered into an accelerated stock repurchase agreement with a financial institution to repurchase additional shares of its common stock pursuant to the Repurchase Authorization. In exchange for an up-front cash payment of $150.0 million, the Company received 3,090,312 shares. The Company did not repurchase any shares of its common stock during the year ended December 31, 2020. As of December 31, 2020, WESCO had repurchased 5,459,030 shares of common stock for $275.0 million under the Repurchase Authorization.The total number of shares ultimately delivered under the accelerated stock repurchase transactions described above were determined by the average of the volume-weighted-average price of the Company's common stock for each exchange business day during the respective settlement valuation periods. WESCO funded the repurchases with available cash, and borrowings under its accounts receivable securitization and revolving credit facilities. For purposes of computing earnings per share, share repurchases have been reflected as a reduction to common shares outstanding on the respective delivery dates. Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)77Table of Contents WESCO INTERNATIONAL, INC. AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED) 14. EMPLOYEE BENEFIT PLANS Defined Contribution Plans WESCO Distribution sponsors a defined contribution retirement savings plan for the majority of its U.S. employees. The Company matches contributions made by employees at an amount equal to 50% of participants' total monthly contributions up to 6% of eligible compensation. Contributions are made in cash and employees have the option to transfer balances allocated to their accounts into any of the available investment options. Due to the COVID-19 pandemic and its adverse effect on WESCO's results of operations, the Company suspended matching employer contributions between April 16, 2020 and September 30, 2020. The Company may also make, subject to the Board's approval, a discretionary contribution to the defined contribution levels are attained. There retirement savings plan covering U.S. participants were no discretionary contributions for the years ended December 31, 2020 and December 31, 2019. Discretionary employer contribution charges of $20.6 million were incurred in 2018. if certain predetermined profit WESCO Distribution Canada LP, a wholly-owned subsidiary of the Company, sponsors a defined contribution plan for certain Canadian employees. The Company makes contributions in amounts ranging from 3% to 5% of participants' eligible compensation based on years of continuous service. Anixter Inc. sponsors a defined contribution plan covering all of its non-union U.S. employees (the "Anixter Employee Savings Plan"). The employer match for the Anixter Employee Savings Plan is equal to 50% of a participant's contribution up to 5% of the participant's compensation. Anixter Inc. will also make an annual contribution to the Anixter Employee Savings Plan on behalf of each active participant who is hired or rehired on or after July 1, 2015, or is not participating in the Anixter Inc. Pension Plan. The amount of the employer annual contribution is equal to either 2% or 2.5% of the participant’s compensation, as determined by the participant’s years of service. This contribution is in lieu of being eligible for the Anixter Inc. Pension Plan. Certain of Anixter Inc.'s foreign subsidiaries also have defined contribution plans. Contributions to these plans are based upon various levels of employee participation and legal requirements. For the years ended December 31, 2020, 2019 and 2018, WESCO incurred charges of $18.3 million, $22.9 million, and $42.9 million, respectively, for all defined contribution plans. Deferred Compensation Plans WESCO Distribution sponsors a non-qualified deferred compensation plan (the "WESCO Deferred Compensation Plan") that permits select employees to make pre-tax deferrals of salary and bonus. Employees have the option to transfer balances allocated to their accounts in the WESCO Deferred Compensation Plan into any of the available investment options. The WESCO Deferred Compensation Plan is an unfunded plan. As of December 31, 2020, the Company's obligation under the deferred compensation plan was $27.4 million, of which $10.1 million was included in other current liabilities and $17.3 million in other noncurrent liabilities in the Consolidated Balance Sheet. At December 31, 2019, the Company's obligation under the deferred compensation plan was $25.2 million and was included in other noncurrent liabilities in the Consolidated Balance Sheet. Anixter Inc. sponsors a non-qualified deferred compensation plan (the "Anixter Deferred Compensation Plan") that permits select employees to make pre-tax deferrals of salary and bonus. Interest is accrued monthly on the deferred compensation balances based on the average ten-year Treasury note rate for the previous three months times a factor of 1.4, and the rate is further adjusted if certain financial goals are achieved. In the fourth quarter of 2020, the Company made a determination to terminate the Anixter Deferred Compensation Plan. Accordingly, a deferred compensation liability of $45.1 million has been classified in other current liabilities in the Consolidated Balance Sheet at December 31, 2020 as the Company expects to make lump sum payments directly to participants of the plan during 2021. Concurrent with the implementation of the Anixter Deferred Compensation Plan, Anixter established a Rabbi Trust arrangement to provide for the liabilities associated with the deferred compensation plan and an executive non-qualified defined benefit plan. The assets are invested in marketable securities. At December 31, 2020, $39.6 million was recorded in other current assets in the Consolidated Balance Sheet for this arrangement. Defined Benefit Plans WESCO sponsors a contributory defined benefit plan (the "EECOL Plan") covering substantially all Canadian employees of EECOL. The EECOL Plan provides retirement benefits based on earnings and credited service, and participants contribute 2% of their earnings to the EECOL Plan. Participants become 100% vested after two years of continuous service or, if earlier, at the participant's normal retirement age. 78 Table of Contents WESCO INTERNATIONAL, INC. AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED) WESCO also sponsors a Supplemental Executive Retirement Plan (the "EECOL SERP"), which provides additional pension benefits to certain executives of EECOL based on earnings, and credited service. Effective January 1, 2013, the EECOL SERP was closed to new participants and existing participants became 100% vested. EECOL SERP participants continue to contribute 4% of their earnings to the EECOL Plan. In connection with the June 22, 2020 acquisition of Anixter discussed in Note 6, "Acquisitions", the Company assumed various defined benefit pension plans sponsored by Anixter Inc. These include defined benefit pension plans in the U.S., which consist of the Anixter Inc. Pension Plan, the Executive Benefit Plan and the Supplemental Executive Retirement Plan (the "Anixter SERP") (together, the "Domestic Plans") and various defined benefit pension plans covering employees of foreign subsidiaries in Canada and Europe (together with the "EECOL Plan" and "EECOL SERP", the "Foreign Plans"). For all defined benefit plans assumed as part of the merger with Anixter, the projected benefit obligation ("PBO") and fair value of plan assets were remeasured as of the acquisition date. The Anixter Inc. Pension Plan was frozen to entrants first hired or rehired on or after July 1, 2015. The majority of the Anixter defined benefit pension plans are non-contributory and, with the exception of the U.S. and Canada, cover substantially all full-time employees in their respective countries. Retirement benefits are provided based on compensation as defined in each of the pension plans. In the fourth quarter of 2020, the Company made a determination to terminate both the Anixter Inc. Executive Benefit Plan and the Anixter SERP. Accordingly, pension liabilities totaling $18.1 million associated with the Anixter Inc. Executive Benefit Plan and the Anixter SERP have been classified as current on the Consolidated Balance Sheet at December 31, 2020 as the Company expects to make lump sum payments directly to participants of these plans during 2021. The Domestic Plans are funded as required by the Employee Retirement Income Security Act of 1974 ("ERISA") and the IRS and all Foreign Plans, including the EECOL Plan and EECOL SERP, are funded as required by applicable foreign laws. The Anixter Inc. Executive Benefit Plan and the Anixter SERP are unfunded plans. 79 The following table presents the changes in benefit obligations, plan assets and funded status for the defined benefit plans:Domestic PlansForeign PlansTotal(In thousands)2020201920202019(2)20202019(2)Change in Projected Benefit Obligation Beginning balance$ — $ — $ 134,852 $ 105,515 $ 134,852 $ 105,515 Impact of acquisition(1) 317,893 — 301,206 — 619,099 — Service cost 1,763 — 9,029 4,602 10,792 4,602 Interest cost 4,787 — 7,162 4,362 11,949 4,362 Participant contributions — — 728 736 728 736 Actuarial loss, including assumption changes 12,911 — 14,044 18,591 26,955 18,591 Benefits paid from plan assets (4,222) — (9,008) (4,459) (13,230) (4,459) Benefits paid from Company assets (547) — (448) — (995) — Curtailment (101) — — — (101) — Plan amendment — — (37) — (37) — Settlement — — (1,235) — (1,235) — Foreign currency exchange rate changes — — 30,562 5,505 30,562 5,505 Ending balance$ 332,484 $ — $ 486,855 $ 134,852 $ 819,339 $ 134,852 Change in Plan Assets at Fair Value Beginning balance$ — $ — $ 103,385 $ 86,556 $ 103,385 $ 86,556 Impact of acquisition(1) 324,292 — 218,644 — 542,936 — Actual return on plan assets 35,217 — 23,947 12,763 59,164 12,763 Participant contributions — — 728 736 728 736 Employer contributions — — 6,838 3,198 6,838 3,198 Benefits paid (4,222) — (9,008) (4,459) (13,230) (4,459) Settlement — — (1,235) — (1,235) — Foreign currency exchange rate changes — — 22,419 4,591 22,419 4,591 Ending balance$ 355,287 $ — $ 365,718 $ 103,385 $ 721,005 $ 103,385 Funded Status$ 22,803 $ — $ (121,137) $ (31,467) $ (98,334) $ (31,467) Amounts Recognized in the Consolidated Balance SheetsOther assets$ 40,921 $ — $ 179 $ — $ 41,100 $ — Other current liabilities (18,118) — (471) (383) (18,589) (383) Other noncurrent liabilities — — (120,845) (31,084) (120,845) (31,084) Net amount recognized$ 22,803 $ — $ (121,137) $ (31,467) $ (98,334) $ (31,467) Weighted Average Assumptions Used to Determine Benefit ObligationsDiscount rate 2.6 % — % 2.0 % 3.2 % 2.2 % 3.2 %Rate of compensation increase 3.8 % — % 3.2 % 3.5 % 3.4 % 3.5 %(1) As described above, the Company assumed the Domestic Plans and certain foreign plans in connection with the June 22, 2020 acquisition of Anixter.(2) For 2019, the changes in benefit obligations, plan assets and funded status relate to the EECOL Plan and the EECOL SERP.Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)80The measurement date for all plans is December 31st. Accordingly, at the end of each fiscal year, the Company determines the discount rate to measure the plan liabilities at their present value. The discount rate reflects the current rate at which the pension liabilities could effectively be settled at the end of the year. In estimating this rate at the end of 2020, the Company reviewed rates of return on relevant market indices and concluded the Willis Towers Watson Global Rate Link Model was consistent with observable market conditions and industry standards for developing spot rate curves. At the end of 2019, the discount rate related to the EECOL Plan and the EECOL SERP was determined using the Canadian Institute of Actuaries methodology.At December 31, 2020 and 2019, the consolidated weighted-average discount rate of all plans was 2.2% and 3.2%, respectively, and these rates were used to measure the PBO at the end of each respective year end. Due primarily to the merger with Anixter, the PBO increased to $819.3 million at December 31, 2020 from $134.9 million at December 31, 2019. The consolidated net unfunded status was $98.3 million at December 31, 2020 compared to $31.5 million at December 31, 2019.The PBO in 2020 was $332.5 million for the Domestic Plans and $486.8 million for the Foreign Plans. The Company had 13 plans in 2020 where the PBO was in excess of the fair value of plan assets. For pension plans with PBO in excess of plan assets the aggregate PBO was $504.8 million, and the aggregate fair value of plan assets was $365.4 million. The PBO in 2019 of $134.9 million related to the EECOL Plan and the EECOL SERP and compared to a fair value of plan assets of $103.4 million.The accumulated benefit obligation in 2020 was $328.2 million for the Domestic Plans and $417.6 million for the Foreign Plans. The Company had 13 plans in 2020 where the accumulated benefit obligation was in excess of the fair value of plan assets. For pension plans with accumulated benefit obligations in excess of plan assets the aggregate pension accumulated benefit obligation was $435.6 million, and the aggregate fair value of plan assets was $365.4 million. The accumulated benefit obligation in 2019 of $104.6 million related to the EECOL Plan and the EECOL SERP and compared to a fair value of plan assets of $103.4 million.The following table presents the components of net periodic pension (benefit) cost:Domestic Plans(1)Foreign Plans(1)Total(In thousands)202020192018202020192018202020192018Components of Net Periodic Pension (Benefit) Cost Service cost$ 1,763 $ — $ — $ 9,029 $ 4,602 $ 5,242 $ 10,792 $ 4,602 $ 5,242 Interest cost 4,787 — — 7,162 4,362 4,137 11,949 4,362 4,137 Expected return on plan assets (8,395) — — (11,659) (5,695) (5,969) (20,054) (5,695) (5,969) Recognized actuarial gain — — — — (63) (46) — (63) (46) Settlement — — — (144) — — (144) — — Net periodic pension (benefit) cost$ (1,845) $ — $ — $ 4,388 $ 3,206 $ 3,364 $ 2,543 $ 3,206 $ 3,364 (1) As described above, the Company assumed the Domestic Plans and certain foreign plans in connection with the June 22, 2020 acquisition of Anixter. The Company began recognizing the associated net periodic pension (benefit) cost as of the acquisition date.The service cost of $10.8 million, $4.6 million and $5.2 million for the years ended December 31, 2020, 2019 and 2018, respectively, was reported as a component of selling, general and administrative expenses. The other components of net periodic pension (benefit) cost totaling a net benefit of $8.2 million, $1.4 million and $1.9 million for the years ended December 31, 2020, 2019 and 2018, respectively, were presented as a component of other, net.The following weighted-average actuarial assumptions were used to determine net periodic pension (benefit) cost:Domestic Plans(1)Foreign Plans(1)Total202020192018202020192018202020192018Discount rate 2.9 % — % — % 2.2 % 4.0 % 3.5 % 2.5 % 4.0 % 3.5 %Expected return on plan assets 5.5 % — % — % 5.2 % 6.4 % 6.4 % 5.3 % 6.4 % 6.4 %Rate of compensation increase 3.8 % — % — % 3.4 % 3.8 % 3.8 % 3.5 % 3.8 % 3.8 %(1) As described above, the Company assumed the Domestic Plans and certain foreign plans in connection with the June 22, 2020 acquisition of Anixter. The Company began using the related assumptions as of the acquisition date.Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)81The expected long-term rate of return on plan assets reflects the average rate of earnings expected on the invested assets and future assets to be invested to provide for the benefits included in the projected benefit obligation. The Company uses historic plan asset returns combined with current market conditions to estimate the rate of return. The weighted-average expected long-term rate of return on plan assets used in the determination of net periodic pension cost for 2020 was 5.3%. As a result of the combined effect of valuation changes in both the equity and bond markets, the plan assets produced an actual gain of 13.6% in 2020. The difference between the expected return and actual return on plan assets is amortized into expense over the service lives of the plan participants. These amounts are reflected on the balance sheet through charges to accumulated other comprehensive loss, a component of stockholders’ equity.The following table sets forth the changes and the end of year components of accumulated other comprehensive (income) loss for the defined benefit plans:Year Ended December 31,(In thousands)20202019Changes to Balance: Beginning balance, before tax effect$ 8,890 $ (2,696) Prior service credit arising in current year (37) — Net actuarial (gain) loss arising in current year (12,154) 11,586 Curtailment (101) — Settlement 144 — Foreign currency exchange rate changes 196 — Ending balance, before tax effect$ (3,062) $ 8,890 As of December 31,(In thousands)20202019Components of Balance:Prior service credit$ (37) $ — Net actuarial (gain) loss (3,025) 8,890 Ending balance, before tax effect (3,062) 8,890 Tax effect 562 (2,329) Ending balance, after tax effect$ (2,500) $ 6,561 The following benefit payments, which reflect expected future service, are expected to be paid as follows:(In thousands)Domestic PlansForeign PlansTotal2021$ 28,527 $ 9,873 $ 38,400 2022 11,165 9,978 21,143 2023 12,065 10,613 22,678 2024 13,046 11,145 24,191 2025 13,807 11,988 25,795 2026 to 2030 78,122 83,178 161,300 The Company expects to contribute approximately $11.4 million to its Foreign Plans in 2021. The Company does not expect to make a contribution to its domestic qualified pension plan in 2021 due to its overfunded status. As a result of the termination of its two domestic non-qualified pension plans, the Company estimates that it will make $18.1 million of lump sum payments directly to participants of these plans during 2021.The assets of the various defined benefit plans are held in separate independent trusts and managed by independent third party advisors. The investment objective for the defined benefit plans is to ensure an adequate level of assets is available to fund the benefits owed to employees and their beneficiaries when they become payable. In meeting this objective, the Company seeks to achieve a level of absolute investment return consistent with a prudent level of portfolio risk. The Company's risk preference is to refrain from exposing the plans to higher volatility in pursuit of potential higher returns.Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)82The Domestic Plans' and Foreign Plans' asset mixes and the asset allocation guidelines for such plans are summarized as follows:Domestic PlansAllocation GuidelinesDecember 31, 2020MinTargetMaxEquities 38.6 % 30 % 37 % 45 %Debt securities:Domestic treasuries 22.2 — 24 40 Corporate bonds 6.7 — 8 40 Other 15.6 9 14 19 Total debt securities 44.5 46 Property/real estate 14.8 9 16 23 Other 2.1 — 1 5 100.0 % 100 %Foreign PlansAllocation GuidelinesDecember 31, 2020MinTargetMaxEquities 38.1 % 25 % 41 % 48 %Debt securities:Corporate bonds 5.9 1 1 37 Other 40.6 26 44 65 Total debt securities 46.5 45 Property/real estate 4.8 2 6 8 Insurance products 5.4 5 5 5 Other 5.2 3 3 12 100.0 % 100 %Foreign PlansAllocation GuidelinesDecember 31, 2019TargetEquities:Canadian equities 12.5 % 12.5 %U.S. equities 5.0 5.0 Non-North American equities 22.5 22.5 Total equities 40.0 40.0 Fixed income investments 44.8 45.0 Other 15.2 15.0 100.0 % 100.0 %Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)83Table of Contents WESCO INTERNATIONAL, INC. AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED) The pension committees meet regularly to assess investment performance relative to asset allocation guidelines. The Company periodically rebalances its asset portfolios to be in line with its allocation guidelines. For 2020, the Domestic plan investment policy guidelines were as follows: • • • • • Derivative instruments such as futures, swaps and options may be used on a limited basis; For funds that employ Each asset class is managed by one or more active and passive investment managers Each asset class may be invested in a commingled fund, mutual fund, or separately managed account Investment in Exchange Traded Funds ("ETFs") is permissible Each manager is expected to be "fully invested" with minimal cash holdings • • • derivatives, the loss of invested capital to the Trust should be limited to the amount invested in the fund The equity portfolio is diversified by sector and geography The real assets portfolio is invested in Real Estate Investment Trusts ("REITs") and private real estate The fixed income is invested in U.S. Treasuries, investment grade corporate debt (denominated in U.S. dollars), and other credit investments including below investment grade rated bonds and loans, securitized credit, and emerging market debt The investment policies for the Foreign plans are the responsibility of the various trustees. Generally, the investment policy guidelines are as follows: • Make sure that the obligations to the beneficiaries of the plan can be met • Maintain funds at a level to meet the minimum funding requirements • The investment managers are expected to provide a return, within certain tracking tolerances, close to that of the relevant market’s indices 84 The following tables set forth the fair value of the Domestic and Foreign Plans' assets by asset category:December 31, 2020(In thousands)Level 1Level 2Level 3NAV (1)TotalDomestic PlansEquities$ — $ — $ — $ 137,098 $ 137,098 Debt securities:Domestic treasuries — — — 78,808 78,808 Corporate bonds — — — 23,824 23,824 Other — — — 55,547 55,547 Property/real estate — — — 52,708 52,708 Insurance products — — — — — Other 7,302 — — — 7,302 Total investments in Domestic Plans$ 7,302 $ — $ — $ 347,985 $ 355,287 Foreign PlansEquities$ — $ — $ — $ 139,537 $ 139,537 Debt securities:Domestic treasuries — — — — — Corporate bonds — — — 21,677 21,677 Other — — — 148,469 148,469 Property/real estate — — — 17,365 17,365 Insurance products — 19,611 — — 19,611 Other 747 — — 18,312 19,059 Total investments in Foreign Plans$ 747 $ 19,611 $ — $ 345,360 $ 365,718 TotalEquities$ — $ — $ — $ 276,635 $ 276,635 Debt securities:Domestic treasuries — — — 78,808 78,808 Corporate bonds — — — 45,501 45,501 Other — — — 204,016 204,016 Property/real estate — — — 70,073 70,073 Insurance products — 19,611 — — 19,611 Other 8,049 — — 18,312 26,361 Total investments$ 8,049 $ 19,611 $ — $ 693,345 $ 721,005 (1) Investments measured at fair value using the NAV per share practical expedient have not been classified in the fair value hierarchy. The amounts presented in the table are intended to reconcile the fair value hierarchy to the total fair value of plan assets.Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)85December 31, 2019(In thousands)Level 1Level 2Level 3NAV (1)TotalForeign PlansEquities:Canadian equities$ — $ — $ — $ 12,973 $ 12,973 U.S. equities — — — 5,160 5,160 Non-North American equities — — — 23,239 23,239 Fixed income investments — — — 46,309 46,309 Other 224 — — 15,480 15,704 Total investments$ 224 $ — $ — $ 103,161 $ 103,385 (1) Investments measured at fair value using the NAV per share practical expedient have not been classified in the fair value hierarchy. The amounts presented in the table are intended to reconcile the fair value hierarchy to the total fair value of plan assets.The Domestic and Foreign Plans' assets are measured at fair value, which 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. Financial assets and liabilities are classified in the fair value hierarchy based on the lowest level of any input that is significant to the measurement of fair value. Investments for which fair value is measured using the net asset value (NAV) per share practical expedient are not classified in the fair value hierarchy. The majority of pension assets are comprised of common/collective/pool funds (i.e., mutual funds). These funds are valued at the net asset value of shares held in the underlying funds.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 methods are 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.Other BenefitsAs permitted by the Merger Agreement, Anixter granted restricted stock units prior to June 22, 2020 in the ordinary course of business to its employees. These awards, which did not accelerate solely as a result of the Merger, were converted into cash-only settled WESCO phantom stock units, which vest ratably over a 3-year period. As of December 31, 2020, the estimated fair value of these awards was $22.8 million. The Company recognized compensation expense associated with these awards of $9.2 million for the year ended December 31, 2020, which is reported as a component of selling, general and administrative expenses.15. STOCK-BASED COMPENSATIONWESCO sponsors a stock-based compensation plan. The 1999 Long-Term Incentive Plan, as amended and restated (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 is administered by the Compensation Committee of the Board.On May 31, 2017, the Company renewed and restated the LTIP, increasing the maximum number of shares of common stock that may be issued under the plan by 1.7 million shares to 3.4 million. In connection with the merger with Anixter on June 22, 2020, the Company assumed a portion of the remaining share reserve available under Anixter’s 2017 Stock Incentive Plan. The number of assumed shares, as adjusted, was equal to 185,000 shares and may be used for awards to be granted under the LTIP. Under the LTIP, the total number of shares of common stock authorized to be issued will be reduced by 1 share of common stock for every 1 share that is subject to a stock appreciation right granted, and 1.83 shares of common stock for every 1 share that is subject to an award other than a stock appreciation right granted on or after May 31, 2017. As of December 31, 2020, 1.1 million shares of common stock were reserved under the LTIP for future equity award grants.WESCO’s stock-based employee compensation plans are comprised of 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-settled stock appreciation rights is determined using the Black-Scholes model. The fair value of restricted stock units and performance-based awards with performance conditions is determined by the grant-date closing price of WESCO’s common stock. The forfeiture assumption is based on WESCO’s historical employee behavior that is reviewed on an annual basis. No dividends are assumed. For stock-settled stock appreciation rights that are exercised and for restricted stock units and performance-based awards that vest, shares are issued out of WESCO's outstanding common stock.Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)86Stock-settled stock appreciation rights vest ratably over a three-year period and terminate on the tenth anniversary of the grant date unless terminated sooner under certain conditions. Except for the special award described below, vesting of restricted stock units is based on a minimum time period of three years. Vesting of performance-based awards is based on a three-year performance period, and the number of shares earned, if any, depends on the attainment of certain performance levels. Outstanding awards would vest upon the consummation of a change in control transaction and performance-based awards would vest at the target level.On July 2, 2020, a special award of restricted stock units was granted to certain officers of the Company. These awards vest in tranches of 30% on each of the first and second anniversaries of the grant date and 40% on the third anniversary of the grant date, subject, in each case, to continued employment through the applicable anniversary date.Performance-based awards granted in 2020 and 2019 were based on two equally-weighted performance measures: the three-year average growth rate of WESCO's net income and the three-year cumulative return on net assets. Performance-based awards granted in 2018 were based on two equally-weighted performance measures: the three-year average growth rate of the Company’s fully diluted earnings per share and the three-year cumulative return on net assets.WESCO recognized $19.3 million, $19.1 million and $16.4 million of non-cash stock-based compensation expense, which is included in selling, general and administrative expenses, for the years ended December 31, 2020, 2019 and 2018, respectively. As of December 31, 2020, there was $33.5 million of total unrecognized compensation expense related to non-vested stock-based compensation arrangements for all awards previously made of which approximately $17.6 million is expected to be recognized in 2021, $12.3 million in 2022 and $3.6 million in 2023.The total intrinsic value of awards exercised during the years ended December 31, 2020, 2019, and 2018 was $8.8 million, $10.7 million, and $8.2 million, respectively. The gross deferred tax benefit associated with the exercise of stock-based awards totaled $2.0 million, $2.5 million, and $2.0 million in 2020, 2019, and 2018, respectively.The following table sets forth a summary of stock-settled stock appreciation rights and related information for the periods presented:Year Ended December 31, 202020192018AwardsWeighted-AverageExercisePriceWeighted-AverageRemainingContractualLifeAggregateIntrinsicValue(In thousands)AwardsWeighted-AverageExercisePriceAwardsWeighted-AverageExercisePriceBeginning of year 2,337,049 $ 59.72 2,351,633 $ 59.26 2,238,607 $ 57.75 Granted 262,091 48.32 213,618 54.63 509,046 62.68 Exercised (391,339) 47.11 (113,099) 35.01 (192,700) 40.74 Canceled (46,245) 65.93 (115,103) 65.27 (203,320) 68.69 End of year 2,161,556 60.48 5.7$ 39,834 2,337,049 59.72 2,351,633 59.26 Exercisable at end of year 1,630,891 $ 62.72 4.8$ 26,622 1,723,370 $ 59.00 1,453,932 $ 57.93 The following table sets forth the weighted-average assumptions used to estimate the fair value of stock-settled stock appreciation rights granted during the periods presented:Year Ended December 31,202020192018Stock-settled stock appreciation rights granted262,091213,618509,046 Risk free interest rate1.4%2.5%2.5% Expected life (in years)555 Expected volatility30%29%28%The risk-free interest rate is based on the U.S. Treasury Daily Yield Curve rate as of the grant date. The expected life is based on historical exercise experience and the expected volatility is based on the volatility of the Company's daily stock prices over a five-year period preceding the grant date.Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)87The weighted-average fair value per stock-settled stock appreciation right granted was $13.86, $16.36 and $18.38 for the years ended December 31, 2020, 2019 and 2018, respectively.The following table sets forth a summary of time-based restricted stock units and related information for the periods presented:Year Ended December 31,202020192018AwardsWeighted-AverageFairValueAwardsWeighted-AverageFairValueAwardsWeighted-AverageFairValueUnvested at beginning of year 363,729 $ 60.00 327,798 $ 57.87 290,054 $ 58.11 Granted 656,717 37.44 192,106 54.13 122,062 62.40 Vested (83,253) 69.17 (136,777) 46.52 (64,166) 67.91 Forfeited (15,698) 56.79 (19,398) 59.62 (20,152) 58.15 Unvested at end of year 921,495 $ 43.15 363,729 $ 60.00 327,798 $ 57.87 The following table sets forth a summary of performance-based awards and related information for the periods presented:Year Ended December 31,202020192018AwardsWeighted-AverageFairValueAwardsWeighted-AverageFairValueAwardsWeighted-AverageFairValueUnvested at beginning of year 195,305 $ 60.24 138,896 $ 59.33 148,508 $ 60.23 Granted 158,756 49.56 126,874 54.64 44,144 62.80 Vested (25,909) 78.04 (25,696) 42.44 — — Forfeited (22,883) 69.39 (44,769) 52.11 (53,756) 64.67 Unvested at end of year 305,269 $ 52.61 195,305 $ 60.24 138,896 $ 59.33 Vesting of the 305,269 shares of performance-based awards in the table above is dependent upon the achievement of certain performance targets, including 132,838 that are dependent upon the three-year average growth rate of WESCO's net income, 19,797 that are dependent upon the three-year average growth rate of the Company's fully diluted earnings per share, and 152,634 that are based upon the three-year cumulative return on net assets. These awards are accounted for as awards with performance conditions; compensation cost is recognized over the performance period based upon WESCO's determination of whether it is probable that the performance targets will be achieved.16. COMMITMENTS AND CONTINGENCIESFrom time to time, a number of lawsuits and claims have been or may be asserted against the Company relating to the conduct of its business, including litigation relating to commercial, product and employment matters. The outcome of any litigation cannot be predicted with certainty, and some lawsuits may be determined adversely to WESCO. However, management does not believe that the ultimate outcome of any such pending matters is likely to have a material adverse effect on WESCO's financial condition or liquidity, although the resolution in any fiscal period of one or more of these matters may have a material adverse effect on WESCO's results of operations for that period.In an effort to expand the Company's footprint in the Middle East, WESCO has been doing business since 2009 with WESTEC Supplies General Trading (“WESTEC”), an industrial equipment supplier headquartered in the United Arab Emirates. WESTEC has debt facilities comprised of a $5.5 million term loan and a $1.0 million line of credit to support its working capital requirements and joint sales efforts with WESCO. Due to the nature of WESCO’s arrangement with WESTEC, WESCO has provided a standby letter of credit under its revolving credit facility of up to $6.7 million as security for WESTEC’s debt facilities. As of December 31, 2020, WESTEC had outstanding indebtedness totaling $5.8 million. Management currently believes the estimated fair value of the noncontingent guarantee on the outstanding indebtedness is nominal and therefore a liability has not been recorded as of December 31, 2020.As of December 31, 2020, the Company had $54.1 million in outstanding letters of credit and guarantees.Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)88Table of Contents WESCO INTERNATIONAL, INC. AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED) 17. BUSINESS SEGMENTS Prior to the completion of its merger with Anixter on June 22, 2020, as described in Note 6, "Acquisitions", WESCO had four operating segments that had been aggregated as one reportable segment. Effective on the date of acquisition, the Company added Anixter as a separate reportable segment for the quarterly period ended June 30, 2020. At the beginning of the third quarter, the Company identified new operating segments organized around three strategic business units consisting of EES, CSS and UBS. These operating segments are equivalent to the Company's reportable segments. The operating segments in the respective periods were determined in accordance with the manner in which WESCO's chief operating decision maker ("CODM") reviewed financial information during those periods. The Company's CODM evaluates the performance of its operating segments based primarily on net sales, income from operations, and total assets. The applicable comparative financial information reported in the Company's previously issued consolidated financial statements for the years ended December 31, 2019 and 2018 has been recast below to conform to the basis of the new segments. The following is a description of each of the Company's reportable segments and their business activities. Electrical & Electronic Solutions The EES segment supplies a broad range of products and supply chain solutions primarily to the Construction, Industrial and Original Equipment Manufacturer ("OEM") markets. Product categories include a broad range of electrical equipment and supplies, wire and cable, 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. EES includes the “Electrical and Electronic Solutions” business acquired from Anixter and the majority of the legacy WESCO industrial and construction businesses. Communications & Security Solutions The CSS segment supplies products and customized supply chain solutions to customers in a diverse range of industries including technology, finance, telecommunications service providers, transportation, education, government, healthcare and retail. CSS sells these products directly to end users or through various channels including data communications contractors, security, network, professional audio/visual and systems integrators. CSS has a broad product portfolio that includes copper and fiber optic cable and connectivity, access control, video surveillance, intrusion and fire/life safety, cabinets, power, cable management, wireless, professional audio/video, voice and networking switches and other ancillary products. CSS includes the “Network and Security Solutions” business acquired from Anixter and the legacy WESCO data communications and safety businesses. Utility & Broadband Solutions The UBS segment supplies electrical transmission and distribution products, power plant maintenance, repair and operations supplies and smart-grid products, and arranges materials management and procurement outsourcing for the power generation, power transmission and electricity distribution industries. The UBS segment combines the “Utility Power Solutions” business acquired from Anixter, the legacy WESCO utility business, the legacy WESCO broadband business and the legacy WESCO integrated supply business. Corporate expenses are incurred to obtain and coordinate financing, tax, information technology, legal and other related services. The Company also has various corporate assets which are reported in corporate. Segment assets may not include jointly used assets, but segment results include depreciation expense or other allocations related to those assets. Interest expense and other non-operating items are not allocated to the segments or reviewed on a segment basis. Corporate expenses and assets are shown in the tables below to reconcile the reportable segments to the consolidated financial statements. 89 The following table sets forth financial information by reportable segment for the periods presented:(In thousands)Year Ended December 31, 2020EESCSSUBSCorporateTotalNet sales$ 5,479,760 $ 3,323,264 $ 3,522,971 $ — $ 12,325,995 Income from operations 260,207 217,163 231,702 (362,034) 347,038 Depreciation and amortization 35,811 37,765 22,380 25,644 121,600 Capital expenditures 7,081 1,495 12,834 35,261 56,671 Year Ended December 31, 2019(In thousands)EESCSSUBSCorporateTotalNet sales$ 4,860,541 $ 909,496 $ 2,588,880 $ — $ 8,358,917 Income from operations 261,788 43,835 184,931 (144,337) 346,217 Depreciation and amortization 28,569 7,155 13,583 12,800 62,107 Capital expenditures 20,405 3,093 6,460 14,109 44,067 Year Ended December 31, 2018(In thousands)EESCSSUBSCorporateTotalNet sales$ 4,878,836 $ 857,481 $ 2,440,284 $ — $ 8,176,601 Income from operations 289,065 34,592 165,149 (136,366) 352,440 Depreciation and amortization 30,198 7,413 13,447 11,939 62,997 Capital expenditures 7,487 129 2,235 26,359 36,210 The following table sets forth total assets by reportable segment for the periods presented:As of December 31, 2020(In thousands)EESCSSUBSCorporate(1)TotalTotal assets$ 3,726,855 $ 4,275,611 $ 2,947,406 $ 930,342 $ 11,880,214 As ofDecember 31, 2019(In thousands)EESCSSUBSCorporate(1)TotalTotal assets$ 2,523,481 $ 610,046 $ 1,747,809 $ 136,299 $ 5,017,635 (1)Total assets for Corporate primarily consist of cash and cash equivalents, deferred income taxes, fixed assets and right-of-use assets associated with operating leases.The following table sets forth tangible long-lived assets by geographic area:As of December 31,20202019(In thousands) United States$ 693,807 $ 315,288 Canada 146,620 95,642 Other International(1) 93,435 6,352 Total $ 933,862 $ 417,282 (1) No individual other international country's tangible long-lived assets are material.Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)9018. SELECTED QUARTERLY FINANCIAL DATA (unaudited)The following table sets forth selected quarterly financial data for the years ended December 31, 2020 and 2019:(In thousands, except per share data)FirstQuarterSecondQuarterThirdQuarterFourthQuarter2020 Net sales$ 1,968,647 $ 2,086,706 $ 4,141,801 $ 4,128,841 Cost of goods sold (excluding depreciation and amortization)(1) 1,592,249 1,692,931 3,356,259 3,356,890 Gross profit 376,398 393,775 785,542 771,951 Income from operations 60,913 15,270 178,095 92,763 Income (loss) before income taxes 44,441 (45,313) 104,332 19,384 Net income (loss)(1) 34,175 (34,459) 80,038 20,288 Net income (loss) attributable to common stockholders 34,407 (35,782) 66,167 5,632 Basic earnings (loss) per share attributable to common stockholders(2)$ 0.82 $ (0.84) $ 1.32 $ 0.11 Diluted earnings (loss) per share attributable to common stockholders(3)$ 0.82 $ (0.84) $ 1.31 $ 0.11 2019 Net sales$ 1,961,267 $ 2,150,088 $ 2,148,110 $ 2,099,452 Cost of goods sold (excluding depreciation and amortization) 1,578,771 1,741,114 1,747,913 1,709,658 Gross profit 382,496 408,974 400,197 389,794 Income from operations 70,726 97,950 93,733 83,808 Income before income taxes 53,606 80,643 80,225 67,587 Net income 41,950 63,215 64,339 52,694 Net income attributable to common stockholders 42,369 63,464 64,495 53,098 Basic earnings per share attributable to common stockholders(2) $ 0.94 $ 1.46 $ 1.53 $ 1.27 Diluted earnings per share attributable to common stockholders(3)$ 0.93 $ 1.45 $ 1.52 $ 1.26 (1) An out-of-period adjustment was recorded during the quarter ended December 31, 2020, resulting in an increase of $23.3 million to cost of goods sold and a decrease of $16.7 million to net income, as described in Note 2, "Accounting Policies".(2)Earnings per share (EPS) in each quarter is computed using the weighted-average number of shares outstanding during that quarter while EPS for the full year is computed by using the weighted-average number of shares outstanding during the year. Thus, the sum of the four quarters’ EPS may not equal the full-year EPS.(3) 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 using the weighted-average number of shares outstanding and common share equivalents during the year. Thus, the sum of the four quarters’ diluted EPS may not equal the full-year diluted EPS.19. SUBSEQUENT EVENTSOn January 14, 2021 (the “Redemption Date”), WESCO Distribution, Inc. redeemed its $500 million aggregate principal amount of 5.375% Senior Notes due 2021 (the "2021 Notes") at a redemption price equal to 100% of the principal amount of the 2021 Notes plus accrued interest on the 2021 Notes to, but not including, the Redemption Date. The redemption of the 2021 Notes was funded with borrowings under the Company's accounts receivable securitization and revolving credit facilities.On February 1 and 12, 2021, the Company sold its legacy WESCO Utility and Datacom businesses in Canada, respectively, for cash consideration totaling approximately $52 million. These transactions fulfill the Company’s commitment to divest these businesses in connection with its Consent Agreement with the Canadian Competition Bureau related to the merger with Anixter. The Company expects to use the net proceeds from the divestiture to repay indebtedness.Table of ContentsWESCO INTERNATIONAL, INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)91Table of Contents 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 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)). 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 Rules 13a-15(f) and 15d-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 updated framework in Internal Control — Integrated Framework (2013) (2013 Framework) issued by the Committee of Sponsoring Organizations of the Treadway Commission on May 14, 2013. Based on our evaluation under the 2013 Framework, our management concluded that our internal control over financial reporting was effective as of December 31, 2020. As permitted by Securities and Exchange Commission guidance, management excluded Anixter Inc. from its assessment of internal control over financial reporting, which was acquired on June 22, 2020, and accounted for approximately 30% of consolidated total assets and 37% of consolidated net sales as of and for the year ended December 31, 2020. The effectiveness of the Company’s internal control over financial reporting as of December 31, 2020 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 2020, 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. 92 PART IIIItem 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 2021 Annual Meeting of Stockholders is incorporated herein by reference.Codes of Business Ethics and ConductWe 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, including the Audit Committee and its financial expert, required by this item, 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 2021 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, 2020.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 2021 Annual Meeting of Stockholders is incorporated herein by reference.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 2021 Annual Meeting of Stockholders is incorporated herein by reference.The following table provides information as of December 31, 2020 with respect to the shares of our common stock that may be issued under our existing equity compensation plans:Plan CategoryNumber of securitiesto be issuedupon exercise ofoutstanding options, warrants and rightsWeighted-averageexercise price ofoutstanding options, warrants and rightsNumber of securitiesremaining available for future issuance under equity compensation plansEquity compensation plans approved by security holders 3,388,320 $ 38.59 1,103,977 Equity compensation plans not approved by security holders — — — Total 3,388,320 $ 38.59 1,103,977 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 2021 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 2021 Annual Meeting of Stockholders is incorporated herein by reference.Table of Contents93PART IVItem 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 StatementsThe 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 ScheduleSchedule II — Valuation and Qualifying Accounts(b)ExhibitsExhibit No.Description of ExhibitPrior Filing or Sequential Page Number2.1Agreement and Plan of Merger, dated as of January 10, 2020, by and among WESCO International, Inc., Warrior Merger Sub, Inc. and Anixter International Inc.Incorporated by reference to Exhibit 2.1 to WESCO’s Current Report on Form 8-K, dated January 13, 20203.1Restated Certificate of Incorporation of WESCO International, Inc.Incorporated by reference to Exhibit 3.1 to WESCO’s Registration Statement on Form S-4, dated September 28, 2001 (No. 333-70404)3.2Certificate of Amendment of Certificate of Incorporation to Restated Certificate of Incorporation of WESCO International, Inc.Incorporated by reference to Exhibit 3.1 to WESCO’s Current Report on Form 8-K, dated May 29, 20143.3Amended and Restated By-laws of WESCO International, Inc., effective as of May 29, 2014Incorporated by reference to Exhibit 3.2 to WESCO’s Current Report on Form 8-K, dated May 29, 20143.4Certificate of Designations with respect to the Series A Preferred Stock, dated June 22, 2020Incorporated by reference to Exhibit 3.1 to WESCO’s Current Report on Form 8-K, dated June 22, 20203.5Certificate of Designations of Series B Junior Participating Preferred Stock of WESCO International, Inc.Incorporated by reference to Exhibit 3.1 to WESCO’s Current Report on Form 8-K, dated July 17, 20204.1Indenture, dated November 26, 2013, among WESCO Distribution, Inc. and U.S. Bank National Association, as trusteeIncorporated by reference to Exhibit 4.1 to WESCO’s Current Report on Form 8-K, dated November 27, 20134.2Form of 5.375% Unrestricted Note due 2021Incorporated by reference to Exhibit A-2 to Exhibit 4.1 to WESCO’s Current Report on Form 8-K, dated November 27, 20134.3Indenture, dated June 15, 2016, among WESCO Distribution, Inc. and U.S. Bank National Association, as trusteeIncorporated by reference to Exhibit 4.1 to WESCO’s Current Report on Form 8-K, dated June 15, 20164.4Form of 5.375% Unrestricted Note due 2024Incorporated by reference to Exhibit A-2 to Exhibit 4.1 to WESCO’s Current Report on Form 8-K, dated June 15, 20164.5Indenture, dated June 12, 2020, between WESCO International, Inc., WESCO Distribution, Inc. and U.S. Bank National Association, as trusteeIncorporated by reference to Exhibit 4.1 to WESCO’s Current Report on Form 8-K, dated June 12, 20204.6Form of 7.125% Senior Note due 2025Incorporated by reference to Exhibit A-1 to Exhibit 4.1 to WESCO’s Current Report on Form 8-K, dated June 12, 2020Table of Contents94Exhibit No.Description of ExhibitPrior Filing or Sequential Page Number4.7Form of 7.250% Senior Note due 2028Incorporated by reference to Exhibit A-2 to Exhibit 4.1 to WESCO’s Current Report on Form 8-K, dated June 12, 20204.8Deposit Agreement, dated as of June 19, 2020, among WESCO International, Inc., Computershare Inc. and Computershare Trust Company, N.A., jointly as the Depositary, and the holders from time to time of the Depositary Receipts described therein Incorporated by reference to Exhibit 4.2 to WESCO’s Registration Statement on Form 8-A, dated June 19, 20204.9Form of Depositary ReceiptIncorporated by reference to Exhibit 4.3 to WESCO’s Registration Statement on Form 8-A, dated June 19, 20204.10Rights Agreement, dated as of July 17, 2020, between WESCO International, Inc. and Computershare Trust Company, N.A., as rights agent, which includes the form of Certificate of Designations as Exhibit A, the form of Right Certificate as Exhibit B and the Summary of Rights to Purchase Preferred Shares as Exhibit CIncorporated by reference to Exhibit 4.1 to WESCO’s Current Report on Form 8-K, dated July 17, 20204.11Description of WESCO International, Inc.’s securitiesFiled herewith10.11999 Deferred Compensation Plan for Non-Employee Directors, as amended and restated September 20, 2007Incorporated by reference to Exhibit 10.5 to WESCO's Annual Report on Form 10-K for the year ended December 31, 2011Table of Contents95Exhibit No.Description of ExhibitPrior Filing or Sequential Page Number10.2Form of Stock Appreciation Rights Agreement for EmployeesIncorporated by reference to Exhibit 10.7 to WESCO's Annual Report on Form 10-K for the year ended December 31, 201110.3Form of Stock Appreciation Rights Agreement for Non-Employee DirectorsIncorporated by reference to Exhibit 10.3 to WESCO’s Quarterly Report on Form 10-Q for the quarter ended June 30, 201010.4Amended and Restated Employment Agreement, dated as of September 1, 2009, between WESCO International Inc. and John J. EngelIncorporated by reference to Exhibit 10.2 to WESCO’s Quarterly Report on Form 10-Q for the quarter ended September 30, 200910.5Term 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, 200910.61999 Long-Term Incentive Plan, as restated effective as of May 30, 2013Incorporated by reference to Appendix A to the Proxy Statement filed on Schedule 14A on April 16, 201310.7Form of Stock Appreciation Rights Agreement for EmployeesIncorporated by reference to Exhibit 10.33 to WESCO's Annual Report on Form 10-K for the year ended December 31, 201410.8Fourth Amended and Restated Receivables Purchase Agreement, dated as of September 24, 2015, by and among WESCO Receivables Corp., WESCO Distribution, Inc., the various Purchaser Groups from time to time party thereto and PNC Bank, National Association, as AdministratorIncorporated by reference to Exhibit 10.2 to WESCO’s Current Report on Form 8-K, dated September 24, 201510.9Form of Non-Employee Director Restricted Stock Unit AgreementIncorporated by reference to Exhibit 10.1 to WESCO’s Quarterly Report on Form 10-Q for the quarter ended March 31, 201610.10Form of Notice of Performance Share Award Under the WESCO International, Inc. 1999 Long-Term Incentive Plan, as amended May 30, 2013Incorporated by reference to Exhibit 10.23 to WESCO's Annual Report on Form 10-K for the year ended December 31, 201510.11Form of Director and Officer Indemnification Agreement, entered among WESCO International, Inc. and certain of its executive officers and directors listed on a schedule attached theretoIncorporated by reference to Exhibit 10.24 to WESCO's Annual Report on Form 10-K for the year ended December 31, 201510.12First Amendment to Fourth Amended and Restated Receivables Purchase Agreement, dated as of December 18, 2015Incorporated by reference to Exhibit 10.1 to WESCO’s Quarterly Report on Form 10-Q for the quarter ended June 30, 201610.13Second Amendment to Fourth Amended and Restated Receivables Purchase Agreement, dated as of April 19, 2016Incorporated by reference to Exhibit 10.2 to WESCO’s Quarterly Report on Form 10-Q for the quarter ended June 30, 201610.14Third Amendment to Fourth Amended and Restated Receivables Purchase Agreement, dated as of May 10, 2016Incorporated by reference to Exhibit 10.3 to WESCO’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2016Table of Contents96Exhibit No.Description of ExhibitPrior Filing or Sequential Page Number10.15Fourth Amendment to Fourth Amended and Restated Receivables Purchase Agreement, dated as of May 27, 2016Incorporated by reference to Exhibit 10.4 to WESCO’s Quarterly Report on Form 10-Q for the quarter ended June 30, 201610.16Term Sheet, dated October 6, 2016, memorializing terms of employment of David S. Schulz 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, 201610.17Fifth Amendment to Fourth Amended and Restated Receivables Purchase Agreement, dated as of November 8, 2017Incorporated by reference to Exhibit 10.1 to WESCO's Current Report on Form 8-K, dated November 8, 201710.18Sixth Amendment to Fourth Amended and Restated Receivables Agreement, dated as of December 29, 2017Incorporated by reference to Exhibit 10.22 to WESCO’s Annual Report on Form 10-K for the year ended December 31, 201710.19Form of Non-Employee Director Restricted Stock Unit AgreementIncorporated by reference to Exhibit 10.23 to WESCO’s Annual Report on Form 10-K for the year ended December 31, 201710.20Form of Restricted Stock Unit Agreement for EmployeesIncorporated by reference to Exhibit 10.24 to WESCO’s Annual Report on Form 10-K for the year ended December 31, 201710.21Form of Stock Appreciation Rights Agreement for EmployeesIncorporated by reference to Exhibit 10.25 to WESCO’s Annual Report on Form 10-K for the year ended December 31, 201710.22Form of Notice of Performance Share Award Under the WESCO International, Inc. 1999 Long-Term Incentive Plan, as amended May 31, 2017Incorporated by reference to Exhibit 10.26 to WESCO’s Annual Report on Form 10-K for the year ended December 31, 201710.231999 Long-Term Incentive Plan, as restated effective as of May 31, 2017Incorporated by reference to Appendix A to the Proxy Statement filed on Schedule 14A on April 17, 201710.24Term Sheet, dated December 4, 2015, memorializing terms of employment of Robert Minicozzi 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, 201710.25Term Sheet, dated April 6, 2018, memorializing terms of employment of Christine Wolf by WESCO International, Inc.Incorporated by reference to Exhibit 10.1 to WESCO’s Quarterly Report on Form 10-Q for the quarter ended June 30, 201810.26Seventh Amendment to Fourth Amended and Restated Receivables Agreement, dated as of April 23, 2018Incorporated by reference to Exhibit 10.1 to WESCO’s Quarterly Report on Form 10-Q for the quarter ended September 30, 201810.27Eighth Amendment to Fourth Amended and Restated Receivables Agreement, dated as of December 21, 2018Incorporated by reference to Exhibit 10.30 to WESCO’s Annual Report on Form 10-K for the year ended December 31, 2018Table of Contents97Exhibit No.Description of ExhibitPrior Filing or Sequential Page Number10.28Voting Agreement, dated as of January 10, 2020, by and among WESCO International, Inc. and the stockholders of Anixter International Inc. listed on Schedule A theretoIncorporated by reference to Exhibit 10.1 to WESCO’s Current Report on Form 8-K, dated January 13, 202010.29Term Sheet, dated September 25, 2019, memorializing terms of employment of Nelson Squires 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, 2019 10.30Third Amended and Restated Credit Agreement, dated as of September 26, 2019 among WESCO Distribution, Inc., the other U.S. Borrowers party thereto, WESCO Distribution Canada LP, the other Canadian Borrowers party thereto, WESCO International, Inc., the Lenders party thereto, JPMorgan Chase Bank, N.A., as Administrative Agent, and JPMorgan Chase Bank, N.A., Toronto Branch, as Canadian Administrative AgentIncorporated by reference to Exhibit 10.1 to WESCO’s Current Report on Form 8-K, dated September 30, 2019 10.31Ninth Amendment o Fourth Amended and Restated Receivables Purchase Agreement, dated as of September 26, 2019Incorporated by reference to Exhibit 10.2 to WESCO’s Current Report on Form 8-K, dated September 30, 201910.32Fourth Amended and Restated Credit Agreement, dated as of June 22, 2020, by and among WESCO Distribution, Inc., the other U.S. borrowers party thereto, WESCO Distribution Canada LP, the other Canadian borrowers party thereto, WESCO International, Inc., the lenders party thereto and Barclays Bank PLC., as administrative agentIncorporated by reference to Exhibit 10.1 to WESCO’s Current Report on Form 8-K, dated June 24, 202010.33Fifth Amended and Restated Receivables Purchase Agreement, dated as of June 22, 2020, by and among WESCO Receivables Corp., WESCO Distribution, Inc., the various purchaser groups from time to time party thereto and PNC Bank, National Association, as administrator. Incorporated by reference to Exhibit 10.2 to WESCO’s Current Report on Form 8-K, dated June 24, 202010.34Form of Restricted Stock Unit Award Agreement (Special Awards)Incorporated by reference to Exhibit 10.1 to WESCO’s Current Report on Form 8-K, dated June 25, 202010.35WESCO International, Inc. Change in Control Severance Plan Incorporated by reference to Exhibit 10.2 to WESCO’s Current Report on Form 8-K, dated June 25, 202010.36Agreement, dated June 22, 2020, memorializing terms of employment of David Schulz by WESCO International, Inc.Incorporated by reference to Exhibit 10.1 to WESCO’s Quarterly Report on Form 10-Q, for the quarter ended June 30, 202010.37Agreement, dated June 22, 2020, memorializing terms of employment of Nelson Squires by WESCO International, Inc.Incorporated by reference to Exhibit 10.2 to WESCO’s Quarterly Report on Form 10-Q, for the quarter ended June 30, 202010.38Agreement, dated June 22, 2020, memorializing terms of employment of Christine Wolf by WESCO International, Inc.Incorporated by reference to Exhibit 10.3 to WESCO’s Quarterly Report on Form 10-Q, for the quarter ended June 30, 202010.39Agreement, dated June 22, 2020, memorializing terms of employment of Diane Lazzaris by WESCO International, Inc.Incorporated by reference to Exhibit 10.4 to WESCO’s Quarterly Report on Form 10-Q, for the quarter ended June 30, 202010.40First Amendment to Fourth Amended and Restated Credit Agreement, dated as of December 14, 2020, among WESCO Distribution, the other U.S. borrowers party thereto, WESCO Distribution Canada LP, the other Canadian borrowers party thereto, WESCO, the lenders party thereto and Barclays Bank PLC, as administrative agent.Filed herewithTable of Contents98Exhibit No.Description of ExhibitPrior Filing or Sequential Page Number10.41First Amendment to Fifth Amended and Restated Receivables Purchase Agreement, dated December 14, 2020 (the “Receivables Amendment”), by and among WESCO Receivables Corp., WESCO Distribution, the various purchaser groups from time to time party thereto and PNC Bank, National Association, as administrator.Filed herewith21.1Subsidiaries of WESCO International, Inc.Filed herewith23.1Consent of Independent Registered Public Accounting FirmFiled herewith31.1Certification of Chief Executive Officer pursuant to Rule 13a-14(a) promulgated under the Exchange ActFiled herewith31.2Certification of Chief Financial Officer pursuant to Rule 13a-14(a) promulgated under the Exchange ActFiled herewith32.1Certification of Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002Filed herewith32.2Certification of Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002Filed herewith101Interactive Data FileFiled herewith104Cover Page Interactive Data File (embedded within the Inline XBRL document)Filed herewithThe 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 U.S. Securities and Exchange Commission’s home page at www.sec.gov. Exhibits will also be furnished without charge by writing to David S. Schulz, Executive 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.Table of Contents99Schedule II—Valuation and Qualifying AccountsBalance atbeginningCharged toCharged tootherBalance atof periodearningsaccounts(1)Deductions(2)end of periodAllowance for expected credit losses(In thousands)Year Ended December 31, 2020$ 25,443 $ 11,701 $ 5,160 $ (18,395) $ 23,909 Year Ended December 31, 2019 24,468 7,006 52 (6,083) 25,443 Year Ended December 31, 2018 21,313 10,854 — (7,699) 24,468 (1)For the year ended December 31, 2020, the amount charged to other accounts relates to the acquisition of Anixter.(2)Includes a reduction in the allowance for expected credit losses due to the write-off of accounts receivable.Balance atbeginningCharged toCharged tootherBalance atof periodearningsaccounts(1)Deductionsend of periodAllowance for deferred tax assets(In thousands)Year Ended December 31, 2020$ 5,854 $ 1,900 $ 52,875 $ — $ 60,629 Year Ended December 31, 2019 4,072 1,745 37 — 5,854 Year Ended December 31, 2018 2,518 1,608 (54) — 4,072 (1)For the year ended December 31, 2020, the amount charged to other accounts includes $59.3 million that was recorded in connection with the acquisition of Anixter.Table of Contents100Table of Contents Item 16. Form 10-K Summary. Not applicable. 101 SIGNATURESPursuant 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.WESCO INTERNATIONAL, INC. By: /s/ JOHN J. ENGEL Name: John J. Engel Title: Chairman, President and Chief Executive Officer Date: March 1, 2021WESCO INTERNATIONAL, INC. By: /s/ DAVID S. SCHULZName: David S. SchulzTitle: Executive Vice President and Chief Financial Officer Date: March 1, 2021Table of Contents102SIGNATURESPursuant 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.WESCO INTERNATIONAL, INC. By: /s/ JOHN J. ENGEL Name: John J. Engel Title: Chairman, President and Chief Executive Officer Date: March 1, 2021WESCO INTERNATIONAL, INC. By: /s/ DAVID S. SCHULZName: David S. SchulzTitle: Executive Vice President and Chief Financial Officer Date: March 1, 2021Table of Contents102Pursuant 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.SignatureTitleDate/s/ JOHN J. ENGEL Chairman, President and Chief Executive Officer March 1, 2021John J. Engel(Principal Executive Officer)/s/ DAVID S. SCHULZExecutive Vice President and Chief Financial Officer March 1, 2021David S. Schulz(Principal Financial and Accounting Officer)/s/ MATTHEW J. ESPEDirector March 1, 2021Matthew J. Espe/s/ BOBBY J. GRIFFINDirector March 1, 2021Bobby J. Griffin/s/ JOHN K. MORGANDirector March 1, 2021John K. Morgan/s/ STEVEN A. RAYMUNDDirector March 1, 2021Steven A. Raymund/s/ JAMES L. SINGLETONDirector March 1, 2021James L. Singleton/s/ EASWARAN SUNDARAMDirector March 1, 2021Easwaran Sundaram/s/ LAURA K. THOMPSONDirector March 1, 2021Laura K. Thompson/s/ LYNN M. UTTERDirector March 1, 2021Lynn M. UtterTable of Contents103NON-GAAP RECONCILIATIONS (Dollars in millions, except for per share data and percentages) 2016 2017 2018 2019 2020 2020 Annual Report 104 331 319 353 346 Adjusted EBITDA: Income from operations Merger-related transaction costs Merger-related fair value adjustments Out-of-period adjustment Gain on sale of asset Adjusted income from operations Stock-based compensation expense Depreciation and amortization Adjusted EBITDA Adjusted net income attributable to common stockholders: Net income attributable to WESCO International, Inc. Loss on debt redemption, net of tax Income tax expense for the Tax Cuts and Jobs Act of 2017 (TCJA) Adjustments to income from operations, net of tax Adjusted net income attributable to WESCO International, Inc. Preferred stock dividends Adjusted net income attributable to common stockholders Adjusted Diluted EPS: Diluted share count Adjusted Diluted EPS1 Free cash flow: Cash provided by operations Less: capital expenditures Add: merger-related expenditures Free cash flow Adjusted net income Free cash flow as a % of adjusted net income Pro forma net sales: WESCO — Reported Results by Segment2 Anixter — Reported Results by Segment3 Pro forma net sales - - - - 331 12 67 410 102 82 - - 184 - 184 48.3 3.80 300 (18) - 282 184 154% - - - - 319 15 64 398 164 - 26 - 190 - 190 48.4 3.93 149 (22) - 128 190 67% EES 5,480 934 6,414 - - - - 353 16 63 432 3 - - - 349 19 62 431 347 132 44 19 (20) 522 17 122 660 227 223 101 - - - 227 - 227 47.2 4.82 297 (36) - 261 225 116% CSS 3,323 1,938 5,261 - - 3 226 - 226 43.5 5.20 224 (44) - 180 225 81% UBS 3,523 819 4,342 - - 133 234 30 204 46.6 4.37 544 (57) 99 586 233 251% Total 12,326 3,691 16,017 1 2016 excludes the third quarter loss per diluted share on debt redemption of $1.70, net of tax, based on 48.7 million diluted shares. 2017 excludes the income tax expense related to the application of the TCJA. 2019 excludes transaction costs related to WESCO’s merger with Anixter. 2020 excludes merger-related costs and fair value adjustments, an out-of-period adjustment related to inventory absorption accounting, gain on sale of a U.S. operating branch, and the related income tax effects. 2 Includes the impact of the Anixter merger for the period from June 22, 2020 to June 30, 2020. 3 Represents Anixter’s reported results for the period from January 1, 2020 to June 19, 2020. 105 WESCO International, Inc. CORPORATE INFORMATION 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 Investor Relations 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. TRANSFER AGENT AND REGISTRAR Computershare P.O. Box 505000 Louisville, KY 40233 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 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 27, 2021, at 2:00 p.m., EDT, hosted virtually at: www.virtualshareholdermeeting.com/WCC2021 CERTIFICATIONS TO THE NYSE AND THE SEC On June 16, 2020, 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 CORPORATE GOVERNANCE BOARD OF DIRECTORS (left to right) Lynn M. Utter Former Chief Talent Officer Atlas Holdings Easwaran Sundaram Operating Executive Tailwind Capital Bobby J. Griffin Former President International Operations Ryder System, Inc. Steven A. Raymund Former Chairman and Chief Executive Officer Tech Data Corporation Matthew J. Espe Operating Partner Advent International John J. Engel Chairman, President, and Chief Executive Officer WESCO International, Inc. James L. Singleton Chairman and Chief Executive Officer Cürex Group Holdings, LLC Laura K. Thompson Former Executive Vice President and Chief Financial Officer The Goodyear Tire & Rubber Company John K. Morgan Former Chairman, President, and Chief Executive Officer Zep, Inc. 2020 Annual Report 106 EXECUTIVE OFFICERS (as of December 31, 2020) John J. Engel Chairman, President, and Chief Executive Officer James F. Cameron Executive Vice President and General Manager, Utility and Broadband Solutions Theodore A. Dosch Executive Vice President of Strategy and Chief Transformation Officer William C. Geary, II Executive Vice President and General Manager, Communications and Security Solutions Akash Khurana Executive Vice President and Chief Information and Digital Officer Diane E. Lazzaris Executive Vice President and General Counsel Hemant Porwal Executive Vice President, Supply Chain and Operations David S. Schulz Executive Vice President and Chief Financial Officer Nelson J. Squires, III Executive Vice President and General Manager, Electrical and Electronic Solutions Christine A. Wolf Executive Vice President and Chief Human Resources Officer WESCO International, Inc. Suite 700 225 West Station Square Drive Pittsburgh, Pennsylvania 15219-1122 Phone: 412-454-2200 www.wesco.com The printer and paper utilized for this report have been certified by the Forest Stewardship Council® (FSC®), which promotes environmentally appropriate, socially beneficial and economically viable management of the world’s forests. This report is printed on paper made from mixed sources of post‑industrial recycled and virgin fiber.
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