PACKAGING CORP OF AMERICA - Annual Report: 2019 (Form 10-K)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-K

For the fiscal year ended December 31, 2019

Commission file number 1-15399

(Exact Name of Registrant as Specified in its Charter)

Registrant's telephone number, including area code: (847) 482-3000

Securities registered pursuant to Section 12(b) of the Act:

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes  ☒  No  ☐

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes  ☐  No  ☒  

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

Indicate 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 such files). Yes  ☒  No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an 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.

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 is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes  ☐  No  ☐

At June 30, 2019, the last day of the Registrant's most recently completed second fiscal quarter, the aggregate market value of Registrant's common equity held by non-affiliates was approximately $8,891,651,488 based upon the closing sale price as reported on the New York Stock Exchange. This calculation of market value has been made for the purposes of this report only and should not be considered as an admission or conclusion by the Registrant that any person is in fact an affiliate of the Registrant.

On February 21, 2020, there were 94,652,815 shares of Common Stock outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Specified portions of the Proxy Statement for the Registrant's 2020 Annual Meeting of Stockholders are incorporated by reference to the extent indicated in Part III of this Form 10-K.

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Table of Contents

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PART I

Packaging Corporation of America (“we,” “us,” “our,” “PCA,” or the “Company”) is the third largest producer of containerboard products and the third largest producer of uncoated freesheet (UFS) paper in North America. We operate six containerboard mills, two uncoated freesheet (UFS) paper mills and 95 corrugated products manufacturing plants. We are headquartered in Lake Forest, Illinois and operate primarily in the United States.

We report in three reportable segments: Packaging, Paper and Corporate and Other. For segment financial information see Note 20, Segment Information, of the Notes to Consolidated Financial Statements in “Part II, Item 8, Financial Statements and Supplementary Data” of this Form 10-K.

During the second quarter of 2018, we discontinued the production of paper grades at the Wallula, Washington mill and converted the No. 3 machine to production of virgin kraft linerboard. Before May 2018, operating results for the Wallula mill were included in the Paper segment. After May 2018, operating results for the Wallula mill are primarily included in the Packaging segment.

Production and Shipments

The following table summarizes the Packaging segment's containerboard production and corrugated products shipments and the Paper segment's UFS production.

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Below is a map of our locations:

Packaging

Packaging Products

Our containerboard mills produce linerboard and corrugating medium, which are primarily used in the production of corrugated products. Our corrugated products manufacturing plants produce a wide variety of corrugated packaging products, including conventional shipping containers used to protect and transport manufactured goods, multi-color boxes and displays with strong visual appeal that help to merchandise the packaged product in retail locations, and honeycomb protective packaging. In addition, we are a large producer of packaging for meat, fresh fruit and vegetables, processed food, beverages, and other industrial and consumer products.

During the year ended December 31, 2019, our Packaging segment produced 4.2 million tons of containerboard at our mills. Our corrugated products manufacturing plants sold 59.4 billion square feet (BSF) of corrugated products. Our net sales to third parties totaled $5.9 billion in 2019.

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Facilities

We currently manufacture containerboard, which includes a variety of performance and specialty grades, at six containerboard mills. Total annual containerboard capacity was approximately 4.3 million tons as of December 31, 2019. We also produce corrugated and protective packaging products at 95 manufacturing locations. The following provides more details of our operations:

Counce. Our Counce, Tennessee mill produces kraft linerboard on two machines. The mill can produce basis weights from 26 lb. to 90 lb.

DeRidder. Our DeRidder, Louisiana mill produces kraft linerboard on its No. 1 machine and kraft linerboard and corrugating medium on its No. 2 machine. The mill can produce linerboard in basis weights of 26 lb. to 69 lb. and medium in basis weights of 23 lb. to 33 lb.

Valdosta. Our Valdosta, Georgia mill produces kraft linerboard on one machine. The mill can produce basis weights from 35 lb. to 96 lb.

Tomahawk. Our Tomahawk, Wisconsin mill produces corrugating medium on two machines. The mill can produce basis weights from 23 lb. to 47 lb.

Filer City. Our Filer City, Michigan mill produces corrugating medium on three machines. The mill can produce basis weights from 20 lb. to 47 lb.

Wallula. Our Wallula, Washington mill produces corrugating medium on its No. 2 machine and kraft linerboard on its No. 3 machine. The mill can produce medium in basis weights from 23 lb. to 33 lb. and linerboard in basis weights from 31 lb. to 52 lb.

We operate 95 corrugated manufacturing and protective packaging operations, a technical and development center, 11 regional design centers, a rotogravure printing operation, and a complement of packaging supplies and distribution centers. Of the 95 manufacturing facilities, 62 operate as combining operations, commonly called corrugated plants, which manufacture corrugated sheets and finished corrugated packaging products, 32 are sheet plants, which procure combined sheets and manufacture finished corrugated packaging products, and one is a corrugated sheet-only manufacturer.

Corrugated products plants tend to be located in close proximity to customers to minimize freight costs. Each of our plants serve a market radius of approximately 150 miles. Our sheet plants are generally located in close proximity to our larger corrugated plants, which enables us to offer additional services and converting capabilities such as small volume and quick turnaround items.

Major Raw Materials Used

Fiber supply. Fiber is the largest raw material cost to manufacture containerboard. We consume both wood fiber and recycled fiber in our containerboard mills. Our mill system has the capability to shift a portion of its fiber consumption between softwood, hardwood, and recycled sources. All of our mills can utilize virgin wood fiber and all of our mills, other than the Valdosta mill, can utilize some recycled fiber in their containerboard production. Our corrugated manufacturing operations generate recycled fiber as a by-product from the manufacturing process, which is consumed by our mills. In 2019, our usage of recycled fiber, net of internal generation, represents 17% of our containerboard production.

We procure wood fiber through leases of cutting rights, long-term supply agreements, and market purchases and believe we have adequate sources of fiber supply for the foreseeable future.

We participate in the Sustainable Forestry Initiative^® (SFI^®), the Programme for the Endorsement of Forest Certification (PEFC), as well as the Forest Stewardship Council^® (FSC^®), and we are certified under their sourcing and chain of custody standards. These standards are aimed at ensuring the long-term health and conservation of forestry resources. We are committed to sourcing wood fiber through environmentally, socially, and economically sustainable practices and promoting resource and conservation stewardship ethics.

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Energy supply. Energy at our packaging mills is obtained through self-generated or purchased fuels and electricity. Fuel sources include by-products of the containerboard manufacturing and pulping process (including black liquor and wood waste), natural gas, purchased wood waste, and other purchased fuels. Each of our mills self-generates process steam requirements from by-products (black liquor and wood waste), as well as from the various purchased fuels. The process steam is used throughout the production process and also to generate electricity.

In 2019, our packaging mills consumed about 75 million MMBTU’s of fuel to produce both steam and electricity. Of the 75 million MMBTU’s consumed, about 62% was from mill generated by-products and 38% was from purchased fuels. Of the purchased fuels, 72% was from natural gas, 25% was from purchased wood waste and 3% was from other purchased fuels.

Chemical supply. We consume various chemicals in the production of containerboard, including caustic soda, sulfuric acid, soda ash, and lime. Most of our chemicals are purchased under contracts, which are bid or negotiated periodically.

Sales, Marketing, and Distribution

Our corrugated products are sold through our direct sales and marketing organization, independent brokers, and distribution partners. We have sales representatives and a sales manager at most of our corrugated manufacturing operations and also have corporate account managers who serve customer accounts with a national presence. Additionally, our design centers maintain an on-site dedicated graphics sales force. In addition to direct sales and marketing personnel, we utilize new product development engineers and product graphics and design specialists. These individuals are located at both the corrugated plants and the design centers. General marketing support is located at our corporate headquarters.

Our containerboard sales group is responsible for linerboard and corrugating medium order processing and sales to our corrugated plants, to outside domestic customers, and to export customers. These personnel also coordinate and execute all containerboard trade agreements with other containerboard manufacturers.

Containerboard produced in our mills is shipped by rail or truck. Our corrugated products are delivered by truck due to our large number of customers and their demand for timely service. Our corrugated manufacturing operations typically serve customers within a 150-mile radius. We sometimes use third-party warehouses for short-term storage of corrugated products.

Customers

We sell containerboard and corrugated products to approximately 17,000 customers in approximately 35,000 locations. About 70% of our corrugated products sales are to regional and local accounts, which are broadly diversified across industries and geographic locations. The remaining 30% of our customer base consists primarily of national accounts that have multiple locations and are served by a number of PCA plants. No single customer exceeds 10% of segment sales.

The primary end-use markets in the United States for corrugated products are shown below as reported in the 2018 Fibre Box Association annual report:

Competition

As of December 31, 2019, we were the third largest producer of containerboard products in North America, according to industry sources and our own estimates. According to industry sources, corrugated products are produced by about 460 U.S. companies operating approximately 1,200 plants. The primary basis for competition for most of our packaging products includes quality, service, price, product design, and innovation. Most corrugated products are manufactured to the customer’s specifications. Corrugated producers generally sell within a 150-mile radius of their plants and compete with other corrugated producers in their local region. Competition in our corrugated products operations tends to be regional, although we also face competition from competitors with significant national account presence.

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On a national level, our primary competitors are International Paper Company, WestRock Company, Georgia-Pacific LLC, and Pratt Industries. However, with our strategic focus on regional and local accounts, we also compete with the smaller, independent producers.

Paper

We are the third largest manufacturer of UFS in North America, according to industry sources and our own estimates. We manufacture and sell papers, including both commodity and specialty papers, which may have custom or specialized features such as colors, coatings, high brightness, and recycled content. Our papers consist of communication papers, including cut-size office papers and printing and converting papers.

Facilities

We currently have two paper mills located in the United States. Total annual UFS capacity is 964,000 tons. Our operations include the following:

Jackson. Our Jackson, Alabama mill produces both commodity and specialty papers on two paper machines.

International Falls. Our International Falls, Minnesota mill produces both commodity and specialty papers on two paper machines.

Major Raw Materials Used

Fiber supply. Fiber is the largest raw material cost in this segment. We consume wood fiber, recycled fiber, and purchased pulp. Our Jackson mill purchases recycled fiber to produce our line of recycled office papers. We purchase wood fiber through contracts and open-market purchase, and we purchase recycled fiber and pulp from third parties pursuant to contractual agreements.

We participate in the Sustainable Forestry Initiative^® (SFI^®), the Programme for the Endorsement of Forest Certification (PEFC), as well as the Forest Stewardship Council^® (FSC^®), and we are certified under their sourcing and chain of custody standards. These standards are aimed at ensuring the long-term health and conservation of forestry resources. We are committed to sourcing wood fiber through environmentally, socially, and economically sustainable practices and promoting resource and conservation stewardship ethics.

Energy supply. We obtain energy through self-generated or purchased fuels and electricity. Fuel sources include by-products of the manufacturing and pulping process (including black liquor and wood waste), natural gas, electricity, and purchased wood waste. Each of the paper mills self-generates process steam requirements from by-products (black liquor and wood waste), as well as from the various purchased fuels. The process steam is used throughout the production process and to generate electricity.

In 2019, our paper mills consumed about 22 million MMBTU’s of fuel to produce both steam and electricity. Of the 22 million MMBTU’s consumed, about 68% was from mill generated by-products and 32% was from purchased fuels. Of the purchased fuels, 91% was from natural gas and 9% from purchased wood waste.

Chemical supply. We consume various chemicals in the production of white papers, including starch, precipitated calcium carbonate, caustic soda, and sodium chlorate. Most of our chemicals are purchased under contracts, which are bid or negotiated periodically.

Sales, Marketing, and Distribution

Our papers are sold primarily through our sales and marketing organization. We ship to customers both directly from our mills and through distribution centers and a network of outside warehouses by rail or truck. This allows us to respond quickly to customer requirements.

Customers

We have over 100 customers in approximately 400 locations. These customers include office products distributors and retailers, paper merchants, and envelope and other converters. We have established long-term relationships with many of our

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customers. Office Depot, Inc. is our largest customer in the Paper segment. Effective January 1, 2020, we have a revised agreement with Office Depot in which we will continue to supply commodity and non-commodity office papers to Office Depot through December 31, 2022. Office Depot is not subject to a minimum volume commitment and is entitled to receive rebates for achieving certain volume thresholds. If the agreement is not renewed by the parties, Office Depot’s obligation to purchase paper would phase down over a two-year period beginning on January 1, 2023. In 2019, our sales revenue to Office Depot represented 50% of our Paper segment sales revenue and 7% of our consolidated sales revenue.

Competition

The markets in which our Paper segment competes are large and highly competitive. Commodity grades of UFS paper are globally traded, with numerous worldwide manufacturers, and as a result, these products compete primarily on the basis of price. All of our paper manufacturing facilities are located in the United States, and although we compete primarily in the domestic market, we do face competition from foreign producers. In 2016, as a result of a case brought by us and other domestic producers before United States international trade authorities, antidumping and countervailing duties at various levels were imposed on producers of uncoated freesheet papers produced in Australia, Brazil, China, Indonesia, and Portugal. These duties remain in effect. Other factors influencing competition from overseas producers include domestic and foreign demand and foreign currency exchange rates.

Our largest competitors include Domtar Corporation and International Paper Company. We also face competition from foreign producers. Although price is the primary basis for competition in most of our paper grades, quality and service are also important competitive determinants. Our papers compete with electronic data transmission, e-readers, electronic document storage alternatives, and paper grades we do not produce. Increasing shifts to these alternatives have had, and are likely to continue to have, an adverse effect on traditional print media and paper usage and lower demand for communication papers.

Corporate and Other

Our Corporate and Other segment includes corporate support staff services and related assets and liabilities. This segment also includes transportation assets, such as rail cars and trucks, which we use to transport some of our products to and from our manufacturing sites, and assets related to a 50% owned variable interest entity, Louisiana Timber Procurement Company, L.L.C. (LTP).

Employees

As of December 31, 2019, we had approximately 15,500 employees, including 4,500 salaried and 11,000 hourly employees. Approximately 63% of our hourly employees worked pursuant to collective bargaining agreements. The majority of our unionized employees are represented by the United Steel Workers (USW), the International Brotherhood of Teamsters (IBT), the International Association of Machinists (IAM), and the Association of Western Pulp and Paper Workers (AWPPW). We are currently in negotiations to renew or extend any union contracts that have recently expired or are expiring in the near future. During 2019, we experienced no work stoppages, and we believe we have satisfactory labor relations with our employees.

Environmental Matters

A discussion of the financial impact of our compliance with environmental laws is presented under the caption “Environmental Matters” in “Part II, Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations” of this Form 10-K.

Executive Officers of the Registrant

Brief statements setting forth the age at February 26, 2020, the principal occupation, employment during the past five years, the year in which such person first became an officer of PCA, and other information concerning each of our executive officers appears below.

Mark W. Kowlzan, 64, Chairman and Chief Executive Officer - Mr. Kowlzan has served as PCA's Chairman since January 2016 and as Chief Executive Officer and a director since July 2010. From 1998 through June 2010, Mr. Kowlzan led the company’s containerboard mill system, first as Vice President and General Manager and then as Senior Vice President - Containerboard. From 1996 through 1998, Mr. Kowlzan served in various senior mill-related operating positions with PCA and Tenneco Packaging, including as manager of the Counce linerboard mill. Prior to joining Tenneco Packaging, Mr. Kowlzan spent 15 years at International Paper Company, a global paper and packaging company, where he held a series of operational

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and managerial positions within its mill organization. Mr. Kowlzan is a member of the board of American Forest and Paper Association.

Thomas A. Hassfurther, 64, Executive Vice President - Corrugated Products - Mr. Hassfurther has served as Executive Vice President - Corrugated Products of PCA since September 2009. From February 2005 to September 2009, Mr. Hassfurther served as Senior Vice President - Sales and Marketing, Corrugated Products. Prior to this he held various senior-level management and sales positions at PCA and Tenneco Packaging. Mr. Hassfurther joined the company in 1977.

Robert P. Mundy, 58, Executive Vice President and Chief Financial Officer - Mr. Mundy has served as Executive Vice President and Chief Financial Officer since May 2019. Mr. Mundy previously served as PCA’s Senior Vice President and Chief Financial Officer from 2015 to 2019. He previously served as Senior Vice President and Chief Financial Officer of Verso Corporation, a leading North American supplier of coated papers to catalog and magazine publishers, from 2006 to June 2015. Verso Corporation filed for Chapter 11 bankruptcy in January 2016. Prior to that, he worked at International Paper Company, from 1983 to 2006, where he was Director of Finance of the Coated and Supercalendered Papers division from 2002 to 2006, Director of Finance Projects from 2001 to 2002, Controller of Masonite Corporation from 1999 to 2001, and Controller of the Petroleum and Minerals business from 1996 to 1999. He served in various business positions at International Paper from 1983 to 1996.

Pamela A. Barnes, 55, Senior Vice President – Finance and Controller - Ms. Barnes has served as Senior Vice President – Finance and Controller since May 2019. Ms. Barnes previously served as a Vice President in PCA’s finance organization from 2012 to 2019. After joining the company in 1992, she has held various positions of increasing responsibility, including serving as PCA’s Treasurer since 1999. Before joining PCA, Ms. Barnes worked for Deloitte & Touche.

Charles J. Carter, 60, Senior Vice President - Containerboard Mill Operations - Mr. Carter has served as Senior Vice President - Containerboard Mill Operations since July 2013. Prior to this, he served as Vice President – Containerboard Mill Operations since January 2011. From March 2010 to January 2011, Mr. Carter served as PCA’s Director of Papermaking Technology. Prior to joining PCA in 2010, Mr. Carter spent 28 years with various pulp and paper companies in managerial and technical positions of increasing responsibility, most recently as Vice President and General Manager of the Calhoun, Tennessee mill of Abitibi Bowater from 2007 to 2010 and as manager of SP Newsprint’s Dublin, Georgia mill from 1999 to 2007.

Kent A. Pflederer, 49, Senior Vice President, General Counsel and Secretary - Mr. Pflederer has served as Senior Vice President, General Counsel and Corporate Secretary since January 2013 and has led our legal department since June 2007. Prior to joining PCA, Mr. Pflederer served as Senior Counsel, Corporate and Securities, at Hospira, Inc. from 2004 to 2007 and served in the corporate and securities practice at Mayer Brown, LLP from 1996 to 2004.

Bruce A. Ridley, 64, Senior Vice President – Environmental Health and Safety and Operational Services - Mr. Ridley has served as Senior Vice President – Environmental Health and Safety and Operational Services since May 2019. Mr. Ridley previously served as Vice President of Operations from 2012 to 2019 and at PCA’s Tomahawk, Wisconsin containerboard mill as the Operations Manager and Mill Manager from 1999 to 2011. Before joining PCA, he held several positions of increasing responsibility at multiple locations during his 19 years with International Paper Co. and two years with Champion International.

Robert A. Schneider, 54, Senior Vice President and Chief Information Officer - Mr. Schneider has served as Senior Vice President and Chief Information Officer since May 2019. He previously served as Vice President and Chief Information Officer from 2000 to 2019. Mr. Schneider joined the company in 1989 and has held various management and other positions of increasing responsibility in information systems for PCA.

D. Ray Shirley, 48, Senior Vice President – Corporate Engineering and Process Technology - Mr. Shirley has served as PCA’s Senior Vice President – Corporate Engineering and Process Technology since May 2019. Mr. Shirley previously served as PCA’s Vice President – Containerboard Mills Engineering and Process Technology from 2012 to 2019 and as Mill Manager at PCA’s Counce, Tennessee containerboard mill from 2010 to 2012. He has served in various management roles within the company, including the Operations Manager at the Filer City, Michigan containerboard mill. Before joining PCA in 1996, Mr. Shirley worked for Georgia-Pacific Corporation.

Thomas W.H. Walton, 60, Senior Vice President - Sales and Marketing, Corrugated Products - Mr. Walton has served as Senior Vice President - Sales and Marketing, Corrugated Products since October 2009. Prior to this, he served as a Vice President and Area General Manager within the Corrugated Products Group since 1998. Mr. Walton joined the company in 1981 and has also held positions in production, sales, and general management.

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Available Information

PCA’s internet website address is www.packagingcorp.com. 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 or 15(d) of the Securities Exchange Act of 1934 are available free of charge through our website as soon as reasonably practicable after they are electronically filed with, or furnished to, the Securities and Exchange Commission. In addition, our Code of Ethics may be accessed in the Investor Relations section of PCA’s website. PCA’s website and the information contained or incorporated therein are not intended to be incorporated into this report.

Some of the statements in this report and, in particular, statements found in Management’s Discussion and Analysis of Financial Condition and Results of Operations, that are not historical in nature are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include statements about our expectations regarding our future liquidity, earnings, expenditures, and financial condition. These statements are often identified by the words “will,” “should,” “anticipate,” “believe,” “expect,” “intend,” “estimate,” “hope,” or similar expressions. These statements reflect management’s current views with respect to future events and are subject to risks and uncertainties. There are important factors that could cause actual results to differ materially from those in forward-looking statements, many of which are beyond our control. These factors, risks and uncertainties include, but are not limited to, the factors described below.

Our actual results, performance, or achievement could differ materially from those expressed in, or implied by, these forward-looking statements, and accordingly, we can give no assurances that any of the events anticipated by the forward-looking statements will transpire or occur, or if any of them do so, what impact they will have on our results of operations or financial condition. In view of these uncertainties, investors are cautioned not to place undue reliance on these forward-looking statements. We expressly disclaim any obligation to publicly revise or otherwise update any forward-looking statements that have been made to reflect the occurrence of events after the date hereof.

In addition to the risks and uncertainties we discuss elsewhere in this Form 10-K (particularly in “Part II, Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations”) or in our other filings with the Securities and Exchange Commission (SEC), the following are important factors that could cause our actual results to differ materially from those we project in any forward-looking statement.

Industry Cyclicality - Changes in the prices of our products could materially affect our financial condition, results of operations, and liquidity. Macroeconomic conditions and fluctuations in industry capacity can create changes in prices, sales volumes, and margins for most of our products, particularly commodity grades of packaging and paper products. Prices for all of our products are driven by many factors, including demand for our products, industry capacity and decisions made by other producers with respect to capacity, and other competitive conditions in our industry. These factors are affected by general global and domestic economic conditions. We have little influence over the timing and extent of price changes of our products, which may be unpredictable and volatile. In addition, as many of our customer contracts include price adjustment provisions based upon published index prices for containerboard or certain grades of UFS papers, our selling prices are influenced by index levels published by trade publications. Changes in how these index levels are determined or maintained may affect our sales prices. If supply exceeds demand, industry operating conditions deteriorate or other factors result in lower prices for our products, our earnings and operating cash flows would be harmed.

General Economic Conditions - If business, political, and economic conditions change in an adverse manner, our business, results of operations, liquidity, and financial position may be harmed. General global and domestic economic conditions directly affect the levels of demand and production of consumer goods, levels of employment, the availability and cost of credit, and ultimately, the profitability of our business. If economic conditions deteriorate and result in higher unemployment rates, lower disposable income, unfavorable currency exchange rates, lower corporate earnings, lower business investment, and lower consumer spending, we may experience lower demand for our products, which is largely driven by demand for products of our customers which utilize our products. If economic conditions result in higher inflation, we may experience higher production and transportation costs, which we may not be able to recover through higher prices or otherwise. In addition, changes in trade policy, including renegotiating or potentially terminating existing bilateral or multilateral agreements as well as the imposition of tariffs, could impact global markets and demand for our and our customers’ products and the costs associated with certain of our capital investments. Further changes in tax laws or tax rates may have a material impact on our future cash taxes, effective tax rate or deferred tax assets and liabilities. These conditions are beyond our control and may have a material impact on our business, results of operations, liquidity, and financial position.

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Competition - The intensity of competition in the industries in which we operate could result in downward pressure on pricing and volume, which could lower earnings and operating cash flows. Our industries are highly competitive, with no single containerboard, corrugated packaging, or UFS paper producer having a dominant position. Containerboard and commodity UFS paper products cannot generally be differentiated by producer, which tends to intensify price competition. The corrugated packaging industry is also sensitive to changes in economic conditions, as well as other factors including innovation, design, quality, and service. To the extent that one or more competitors are more successful than we are with respect to any key competitive factor, our business could be adversely affected. Our packaging products also compete, to some extent, with various other packaging materials, including products made of paper, plastics, wood, and various types of metal. If we are unable to successfully compete, we may lose market share or may be required to charge lower sales prices for our products, both of which would reduce our earnings and operating cash flows.

UFS paper products compete with electronic data transmission and document storage alternatives. Increasing shifts to electronic alternatives have had and will continue to have an adverse effect on usage of these products. As a result of such competition, the industry is experiencing decreasing demand for existing UFS paper products. As the use of these alternatives grows, demand for UFS paper products is likely to further decline. Declines in demand for our paper products may adversely affect our earnings and operating cash flows.

Some of our competitors are larger than we are and may have greater financial and other resources, greater manufacturing economies of scale, greater energy self-sufficiency, or lower operating costs, compared to our company. We may be unable to compete effectively with these companies particularly during economic downturns. Some of the factors that may adversely affect our ability to compete in the markets in which we participate include the entry of new competitors into the markets we serve, increased competition from overseas producers, our competitors' pricing strategies, changes in customer preferences, and the cost-efficiency of our facilities.

Inflation and Other General Cost Increases - We may not be able to offset higher costs. We are subject to both contractual, inflationary, and other general cost increases, including with regard to our labor costs and purchases of raw materials and transportation services. General economic conditions may result in higher inflation, which may increase our exposure to higher costs. If we are unable to offset these cost increases by price increases, growth, and/or cost reductions in our operations, these inflationary and other general cost increases could have a material adverse effect on our operating cash flows, profitability, and liquidity.

In 2019, our total company costs including cost of sales (COS) and selling, general, and administrative expenses (SG&A) was $5.9 billion, and excluding non-cash costs (depreciation, depletion and amortization, pension and postretirement expense, and share-based compensation expense) was $5.4 billion. A 1% increase in COS and SG&A costs would increase costs by $59 million and cash costs by $54 million.

Cost of Fiber - An increase in the cost of fiber could increase our manufacturing costs and lower our earnings. The market price of wood fiber varies based upon availability, source, and the costs of fuels used in the harvesting and transportation of wood fiber. The cost and availability of wood fiber can also be impacted by weather, general logging conditions, geography, and regulatory activity.

The availability and cost of recycled fiber depends heavily on recycling rates and the domestic and global demand for recycled products. We purchase recycled fiber for use at five of our six containerboard mills and both paper mills. In 2019, we purchased approximately 790,000 tons of recycled fiber, net of the recycled fiber generated by our corrugated box plants. The amount of recycled fiber purchased each year varies based upon production and the prices of both recycled fiber and wood fiber.

Periods of supply and demand imbalance have created significant price volatility. Periods of higher recycled fiber costs and unusual price volatility have occurred in the past, including during 2019 as demand for domestic recycled fiber from Chinese producers continued to remain low. Prices for recycled fiber may continue to fluctuate significantly in the future, which could result in higher costs and lower earnings. A $10 per ton price increase in recycled fiber for our containerboard mills, would result in approximately $7 million of additional expense based on 2019 consumption.

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Cost of Purchased Fuels and Chemicals - An increase in the cost of purchased fuels and chemicals could lead to higher manufacturing costs, resulting in reduced earnings. We have the ability to use various types of purchased fuels in our manufacturing operations, including natural gas, bark, and other purchased fuels. Fuel prices, in particular prices for oil and natural gas, have fluctuated in the past. New and more stringent environmental regulations may discourage, reduce the availability of, or make more expensive, the use of certain fuels, particularly coal and fossil fuels. In addition, costs for key chemicals used in our manufacturing operations also fluctuate. These fluctuations impact our manufacturing costs and result in earnings volatility. If fuel and chemical prices rise, our production costs and transportation costs will increase and cause higher manufacturing costs and reduced earnings if we are unable to recover such increases through higher prices of our products. A $0.10 per million MMBTU increase in natural gas prices would result in approximately $3 million of additional expense, based on 2019 usage.

Transportation Costs - Reduced truck and rail availability could lead to higher costs or poorer service, resulting in lower earnings, and harm our ability to distribute our products. We ship our products primarily by truck and rail. We have experienced lower availability of third-party trucking services and service issues, interruptions, and delays in rail services. We have also experienced higher costs for transportation services in general. If these factors persist, we could experience even higher transportation costs in the future and difficulties shipping our products in a timely manner. We may not be able to recover higher transportation costs through higher prices or otherwise, which would result in lower earnings.

Material Disruption of Manufacturing - A material disruption at one of our manufacturing facilities could prevent us from meeting customer demand, reduce our sales, and/or negatively affect our results of operations and financial condition. Our business depends on continuous operation of our facilities, particularly at our mills. Any of our manufacturing facilities, or any of our machines within such facilities, could cease operations unexpectedly for a significant period of time due to a number of events, including:

These events could harm our ability to produce our products and serve our customers and may lead to higher costs and reduced earnings.

Environmental Matters - PCA may incur significant environmental liabilities with respect to both past and future operations. We are subject to, and must comply with, a variety of federal, state and local environmental laws, particularly those relating to air and water quality, waste disposal and the cleanup of contaminated soil and groundwater. Failure to comply with these regulations could result in fines, which may be significant, or other adverse regulatory action. Because environmental regulations are constantly evolving, we have incurred, and will continue to incur, costs to maintain compliance with those laws. See Item 7. “Management’s Discussion and Analysis of Financial Condition and Results of Operations - Environmental Matters” for estimates of expenditures we expect to make for environmental compliance in the next few years. New and more stringent environmental regulations may be adopted and may require us to incur additional operating expenses and/or significant additional capital expenditures to modify or replace certain of our boilers and other equipment. In addition, environmental regulations may increase the cost of our raw materials and purchased energy. Although we have established reserves to provide for known environmental liabilities, these reserves may change over time due to the enactment of new environmental laws or regulations or changes in existing laws or regulations, which might require additional significant environmental expenditures.

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Mergers and Acquisitions - Our acquired businesses may underperform relative to our expectations, and we may not be able to successfully integrate these businesses into our own.  We have completed several mergers and acquisitions and investments in recent years. Our success will depend in part on our ability to successfully integrate, and receive the intended benefits from, these acquisitions. There may be difficulties, costs and delays involved in the integration of these businesses into ours. Integration requires modification of operational and financial systems and may result in significant additional expenses. If the acquired businesses underperform relative to our expectations, or if we fail to successfully integrate these businesses, our business, financial condition and results of operations may be materially and adversely affected.

Customer Concentration - We rely on certain large customers. Our packaging and paper segments each have large customers, the loss of which could adversely affect the segment’s sales and profitability. In particular, because our businesses operate in highly competitive industry segments, we regularly bid for new business or for renewal of existing business. The loss of business from our larger customers, or the renewal of business on less favorable terms, may adversely impact our financial results.

Office Depot, Inc. is our largest customer in the Paper segment. Effective January 1, 2020, we have a revised agreement with Office Depot in which we will continue to supply commodity and non-commodity office papers to Office Depot through December 31, 2022. Office Depot is not subject to a minimum volume commitment and is entitled to receive rebates for achieving certain volume thresholds. If the agreement is not renewed by the parties, Office Depot’s obligation to purchase paper would phase down over a two-year period beginning on January 1, 2023.

In 2019, sales to Office Depot represented 50% of our Paper segment sales and 7% of our consolidated sales. If these sales are reduced, including if we are unable to renew the agreement at historical volume levels, we would need to find new customers. We may not be able to fully replace any lost sales, and any new sales may be at lower prices or higher costs. Any significant deterioration in the financial condition of Office Depot affecting its ability to pay or any other change that makes Office Depot less willing to purchase our products will harm our business and results of operations.

Labor Relations- If we experience strikes or other work stoppages, our business will be harmed. Our workforce is highly unionized and operates under various collective bargaining agreements. We must negotiate to renew or extend any union contracts that have recently expired or are expiring in the near future. While we believe that we have satisfactory labor relations, we may not be able to successfully negotiate new agreements without work stoppages or labor difficulties in the future or renegotiate them on favorable terms. If we are unable to successfully renegotiate the terms of any of these agreements, or if we experience any extended interruption of operations at any of our facilities as a result of strikes or other work stoppages, our business, results of operations and financial condition may be harmed.

Reliance on Personnel - We may fail to attract and retain qualified personnel, including key management personnel. Our ability to operate and grow our business depends on our ability to attract and retain employees with the skills necessary to operate and maintain our facilities, produce our products and serve our customers. The increasing demand for qualified personnel may make it more difficult for us to attract and retain qualified employees. Changing demographics and labor work force trends may make it difficult for us to replace retiring employees at our manufacturing and other facilities. If we fail to attract and retain qualified personnel, or if we experience labor shortages, we may experience higher costs and other difficulties, and our business may be adversely impacted.

In addition, we rely on key executive and management personnel to manage our business efficiently and effectively. As our business has grown in size and geographic scope, we have relied on these individuals to manage increasingly complex operations. The loss of any of our key personnel could adversely affect our business.

Cyber Security - Risks related to security breaches of company, customer, employee, and vendor information, as well as the technology that manages our operations and other business processes, could adversely affect our business. We rely on various information technology systems to capture, process, store, and report data and interact with customers, vendors, and employees. Despite careful security and controls design, implementation, updating, and internal and independent third-party assessments, our information technology systems, and those of our third party providers, could become subject to cyber-attacks or security breaches. Network, system, and data breaches could result in misappropriation of sensitive data or operational disruptions including interruption to systems availability and denial of access to and misuse of applications required by our customers to conduct business with us. Misuse of internal applications; theft of intellectual property, trade secrets, or other corporate assets; and inappropriate disclosure of confidential information could stem from such incidents. Delayed sales, slowed production, or other issues resulting from these disruptions could result in lost sales, business delays, and negative publicity and could have a material adverse effect on our operations, financial condition, or operating cash flows.

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Debt obligations - Our debt service obligations may reduce our operating flexibility. At December 31, 2019, we had $2.5 billion of debt outstanding and a $329.2 million undrawn revolving credit facility, after deducting letters of credit. All debt is comprised of fixed-rate senior notes. We and our subsidiaries are not restricted from incurring, and may incur, additional indebtedness in the future.

Our current borrowings, plus any future borrowings, may affect our ability to operate our business, including, without limitation:

Further, if we cannot service our indebtedness, we may have to take actions to secure additional cash by selling assets, seeking additional equity or reducing investments, which may not be achievable on acceptable terms or at all.

Pension Plans – Our pension plans may require additional funding. We record a liability associated with our pensions equal to the excess of the benefit obligations over the fair value of the assets funding the plans. The actual required amounts and timing of future cash contributions will be sensitive to changes in the applicable discount rates and returns on plan assets, and could also be impacted by future changes in the laws and regulations applicable to plan funding. Fluctuations in the market performance of our plan assets will affect our pension plan costs in future periods. Changes in assumptions regarding expected long-term rate of return on plan assets, our discount rate, expected compensation levels, or mortality will also increase or decrease pension costs.

Market Price of our Common Stock - The market price of our common stock may be volatile, which could cause the value of the stock to decline. Securities markets worldwide periodically experience significant price declines and volume fluctuations due to macroeconomic factors and other factors beyond our control. This market volatility, as well as general economic, market, or political conditions, could reduce the market price of our common stock with little regard to our operating performance. In addition, our operating results could be below the expectations of public market analysts and investors, and in response, the market price of our common stock could decrease significantly.

None.

We own and lease properties in our business. Primarily all of our leases are non-cancelable and are accounted for as operating leases. These leases are not subject to early termination except for standard nonperformance clauses.

Information concerning capacity and utilization of our principal operating facilities, the segments that use those facilities, and a map of geographical locations is presented in “Part I, Item 1. Business” of this Form 10-K. We assess the condition and capacity of our manufacturing, distribution, and other facilities needed to meet our operating requirements. Our properties have been generally well maintained and are in good operating condition. In general, our facilities have sufficient capacity and are adequate for our production and distribution requirements.

We currently own buildings and land for six containerboard mills and two paper mills. Additionally, we have 95 corrugated manufacturing operations, of which the buildings and land for 53 are owned, including 45 combining operations, or corrugated plants, one corrugated sheet-only manufacturer, and seven sheet plants. We lease the buildings for 17 corrugated plants and 25 sheet plants. We own warehouses and miscellaneous other properties, including sales offices and woodlands management offices. We lease space for regional design centers and numerous other distribution centers, warehouses, and facilities. The equipment in these leased facilities is, in virtually all cases, owned by us, except for forklifts and other rolling stock, which are generally leased.

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We lease the cutting rights to approximately 73,000 acres of timberland located near our Valdosta mill (66,000 acres) and our Counce mill (7,000 acres). On average, these cutting rights agreements have terms with approximately 18 years remaining. Additionally, we previously leased 3,000 acres of land where we operated fiber farms as a source of future fiber supply; however, we exited the leases in conjunction with the conversion of the No. 3 machine at the Wallula mill to kraft linerboard.

Our corporate headquarters is located in Lake Forest, Illinois. The headquarter facility is owned, and we lease additional neighboring office space through the next two years with provisions for two additional five year lease extensions.

Information concerning legal proceedings can be found in Note 21, Commitments, Guarantees, Indemnifications, and Legal Proceedings, of the Notes to Consolidated Financial Statements in “Part II, Item 8. Financial Statements and Supplementary Data” of this Form 10-K.

Not applicable.

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PART II

Market Information

PCA’s common stock is listed on the New York Stock Exchange (NYSE) under the symbol “PKG”.

Stockholders

On February 21, 2020, there were 96 holders of record of our common stock.

Purchases of Equity Securities

Stock Repurchase Program

On February 25, 2016, PCA announced that its Board of Directors authorized the repurchase of $200.0 million of the Company's outstanding common stock. At the time of the announcement, there was no remaining authority under previously announced programs. Repurchases may be made from time to time in open market or privately negotiated transactions in accordance with applicable securities regulations. The timing and amount of repurchases will be determined by the Company in its discretion based on factors such as PCA’s stock price and market and business conditions.

The Company did not repurchase any shares of its common stock under this authority during the years ended December 31, 2019, 2018, and 2017. As of December 31, 2019, we are authorized to repurchase $193.0 million of the Company’s common stock.

Pursuant to its equity incentive plan, the Company withholds shares from vesting employee equity awards to cover employee tax liabilities. Total shares withheld in 2019 were 87,668 to cover $8.2 million in employee tax liabilities. Total shares withheld in 2018 were 69,255 to cover $7.9 million of employee tax liabilities. Total shares withheld in 2017 were 97,946 for $10.8 million in employee tax liabilities.

The following table presents information related to our repurchases of common stock made under repurchase plans authorized by PCA's Board of Directors, and shares withheld to cover taxes on vesting of equity awards, during the three months ended December 31, 2019:

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Performance Graph

The graph below compares PCA’s cumulative 5-year total shareholder return on common stock with the cumulative total returns of the S&P 500 index; the S&P Midcap 400 index; and a customized peer group of three companies that includes: International Paper Company, WestRock Company, and Domtar Corporation. The graph tracks the performance of a $100 investment (including the reinvestment of all dividends) in our common stock, in each index, and in each peer group's common stock from December 31, 2014, through December 31, 2019. The stock price performance included in this graph is not necessarily indicative of future stock price performance.

The information in the graph and table above is not deemed “filed” with the Securities and Exchange Commission and is not to be incorporated by reference in any of PCA’s filings under the Securities Act of 1933 or the Securities Exchange Act of 1934, whether made before or after the date of this Annual Report on Form 10-K, except to the extent that PCA specifically incorporates such information by reference.

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The following table sets forth selected historical financial data of PCA (dollars and shares in millions, except per share data). The information contained in the table should be read in conjunction with the disclosures in “Part II, Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations” and “Part II, Item 8. Financial Statements and Supplementary Data” of this Form 10-K.

Effective January 1, 2016, the Company adopted Accounting Standards Update (ASU) 2015-03 (Topic 835): Simplifying the Presentation of Debt Issuance Costs. We applied this guidance retrospectively, as required, and reclassified the debt issuance costs from “Other long-term assets” to “Long-term debt” on our Consolidated Balance Sheet to conform with current period presentation. Total assets for all periods presented have been updated to reflect this adoption.

Net income and net income per common share are impacted by a lower U.S. corporate federal statutory income tax rate of 21% in 2019 and 2018 and 35% in all prior years presented in this table. In addition, both 2018 and 2017 include a tax benefit of $2.0 million and $122.1 million, respectively, related to the enactment in December 2017 of the Tax Cuts and Jobs Act (H.R.1). See Note 8, Income Taxes, for more information.

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The following discussion and analysis of historical results of operations and financial condition should be read in conjunction with the audited financial statements and the notes thereto which appear elsewhere in this Form 10-K. This discussion includes forward-looking statements regarding our expectations with respect to our future performance, liquidity, and capital resources. Such statements, along with any other non-historical statements in the discussion, are forward-looking. See our discussion regarding forward-looking statements included under “Part I, Item 1A. Risk Factors” of this Form 10-K. For our discussion and analysis of our results of operations, financial condition and cash flows for the year ended December 31, 2017, the earliest of the years presented in the accompanying audited financial statements included in Item 8 herein, please refer to our Annual Report on Form 10-K for the year ended December 31, 2018, filed with the Securities and Exchange Commission on February 28, 2019. Such information is presented in Item 7 of such report under the subcaptions “Results of Operations —Year Ended December 31, 2018, Compared with Year Ended December 31, 2017” and “Liquidity and Capital Resources” and is incorporated by reference herein.

Overview

PCA is the third largest producer of containerboard products and the third largest producer of uncoated freesheet paper in North America. We operate six containerboard mills, two paper mills, and 95 corrugated products manufacturing plants. Our containerboard mills produce linerboard and corrugating medium, which are papers primarily used in the production of corrugated products. Our corrugated products manufacturing plants produce a wide variety of corrugated packaging products, including conventional shipping containers used to protect and transport manufactured goods, multi-color boxes and displays with strong visual appeal that help to merchandise the packaged product in retail locations, and honeycomb protective packaging. In addition, we are a large producer of packaging for meat, fresh fruit and vegetables, processed food, beverages, and other industrial and consumer products. We also manufacture and sell UFS papers, including both commodity and specialty papers, which may have custom or specialized features such as colors, coatings, high brightness, and recycled content. We are headquartered in Lake Forest, Illinois and operate primarily in the United States.

Executive Summary

Net sales were $6.96 billion for the year ended December 31, 2019 and $7.01 billion in 2018. We reported $696 million of net income, or $7.34 per diluted share, in 2019, compared to $738 million, or $7.80 per diluted share, in 2018. Net income included $29 million of expense for special items in 2019, compared to $22 million of expense for special items in 2018. Special items in both periods are described later in this section. Excluding special items, we recorded $726 million of net income, or $7.65 per diluted share, in 2019, compared to $760 million, or $8.03 per diluted share, in 2018. The decrease was driven primarily by lower prices and mix in our Packaging segment, lower volumes in our Paper segment, and higher operating and converting costs, partially offset by higher volumes in our Packaging segment, higher prices and mix in our Paper segment, lower annual outage expense, and lower freight and logistic expenses. For additional detail on special items included in reported GAAP results, as well as segment income (loss) excluding special items, earnings before non-operating pension expense, interest, income taxes, and depreciation, amortization, and depletion (EBITDA), and EBITDA excluding special items, see “Item 7. Reconciliations of Non-GAAP Financial Measures to Reported Amounts.”

Packaging segment income from operations was $963 million in 2019, compared to $1,045 million in 2018. Packaging segment EBITDA excluding special items was $1,310 million in 2019, compared to $1,401 million in 2018. The decrease was driven primarily by lower domestic and export containerboard prices and mix and higher operating and converting costs, partially offset by higher sales and production volumes, higher corrugated products prices and mix, lower annual outage expense, and lower freight and logistic expenses.

Paper segment income from operations was $175 million in 2019, compared to $98 million in 2018. Paper segment EBITDA excluding special items was $213 million in 2019, compared to $165 million in 2018. The increase was due primarily to higher paper prices and mix, lower operating costs, and lower freight and logistic expenses, partially offset by lower sales and production volumes, and higher annual outage expense.

During the second quarter of 2018, the Company discontinued production of paper grades at its Wallula, Washington mill and converted the No. 3 paper machine to a 400,000 ton-per-year virgin kraft linerboard machine. The Company incurred charges in the Packaging and Paper segments relating to these activities during 2019 and 2018 as described below under “Special Items and Earnings per Diluted Share, Excluding Special Items.”

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Special Items and Earnings per Diluted Share, Excluding Special Items

Earnings per diluted share, excluding special items, in 2019 and 2018 were as follows:

Management excludes special items, as it believes these items are not necessarily reflective of the ongoing results of operations of our business. We present these measures because they provide a means to evaluate the performance of our segments and our company on an ongoing basis using the same measures that are used by our management, because these measures assist in providing a meaningful comparison between periods presented and because these measures are frequently used by investors and other interested parties in the evaluation of companies and the performance of their segments. A reconciliation of diluted earnings per share to diluted earnings per share excluding special items is included above and the reconciliations of other non-GAAP measures used in this Management's Discussion and Analysis of Financial Condition and Results of Operations, to the most comparable measure reported in accordance with GAAP, are included later in Item 7 under “Reconciliations of Non-GAAP Financial Measures to Reported Amounts.” Any analysis of non-GAAP financial measures should be done in conjunction with results presented in accordance with GAAP. The non-GAAP measures are not intended to be substitutes for GAAP financial measures and should not be used as such.

Industry and Business Conditions

Trade publications reported North American industry-wide corrugated products total shipments were flat during 2019, compared to 2018. Reported industry containerboard production decreased 3.7% compared to 2018, and reported industry containerboard inventories at the end of 2019 were approximately 2.5 million tons, down 5.1% compared to 2018.  Reported containerboard export shipments decreased 13.1% compared to 2018. Prices reported by trade publications decreased by $10 per ton for linerboard in March, May, and June 2019, and corrugating medium decreased $20 per ton in January and $10 per ton in May and June 2019. Additionally, prices decreased by $10 per ton for linerboard and $15 per ton for corrugating medium in January 2020.

The market for communication papers competes heavily with electronic data transmission and document storage alternatives. Increasing shifts to these alternatives have reduced usage of traditional print media and communication papers. Trade publications reported North American uncoated freesheet paper shipments were down 10.9% in 2019, compared to 2018. Average copy paper prices reported by a trade publication for cut size office papers increased $3 per ton in the first quarter and

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$35 per ton in the second quarter, followed by a decrease of $35 per ton in the third quarter and $13 per ton in the fourth quarter of 2019.

Outlook

Looking ahead to the first quarter of 2020, in our Packaging segment we expect lower prices as the remaining impact of the published domestic containerboard price decreases from 2019 are fully realized as well as the negative impact from the decreases in the published index prices for kraft linerboard and medium reported in January 2020. We also expect export prices to continue to decline. Containerboard volumes will be lower due to scheduled maintenance outages at our three largest mills during the quarter, but we do expect higher corrugated products shipments driven by higher demand. In our Paper segment, volumes are expected to be lower partly due to timing, as we shipped higher than expected volumes during the fourth quarter as well as the scheduled outage we have at our Jackson Mill. Expenses relating to our scheduled maintenance outage activities will be significantly higher with four outages scheduled in the first quarter versus one in the fourth quarter of 2019. Freight costs will be higher due to rail rate increases in certain areas and scheduled outage-related increases. Labor and benefits costs will be higher with annual wage increases and other timing-related expenses. We also expect input cost inflation with purchased electricity and most of our chemical and repair and materials costs, while seasonally colder weather will increase energy and wood costs. We also expect our tax rate and depreciation expense to be slightly higher. Considering these items, we expect first quarter earnings to be lower than fourth quarter 2019.

Results of Operations

Year Ended December 31, 2019, Compared with Year Ended December 31, 2018

The historical results of operations of PCA for the years ended December 31, 2019 and 2018 are set forth below (dollars in millions):

Net Sales

Net sales decreased $50 million, or 0.7%, to $6,964 million in 2019, compared to $7,015 million in 2018.

Packaging. Net sales decreased $7 million, or 0.1%, to $5,932 million, compared to $5,939 million in 2018, due to lower prices and mix ($31 million), primarily for domestic and export containerboard, partially offset by increased volumes ($24 million), primarily due to corrugated products. In 2019, our domestic containerboard prices decreased 3.6% and export prices decreased 20.5% compared to 2018. Containerboard outside shipments decreased 12.2%, and total corrugated products shipments were up 0.9% in total and per day workday, compared to 2018. Prices reported by trade publications decreased by

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$10 per ton for linerboard in March, May, and June 2019, and corrugating medium decreased $20 per ton in January and $10 per ton in May and June 2019, which drove lower selling prices for containerboard and corrugated products.

Paper. Net sales decreased $38 million, or 3.8%, to $964 million, compared to $1,002 million in 2018. The decrease was due to lower volume ($97 million), partially offset by higher prices and mix ($59 million).

Gross Profit

Gross profit decreased $1 million in 2019, compared to 2018. The decrease was driven primarily by lower prices and mix in our Packaging segment, lower volumes in our Paper segment, and higher operating and converting costs, partially offset by higher volumes in our Packaging segment, higher prices and mix in our Paper segment, lower annual outage expense, and lower freight and logistic expenses. In 2019, gross profit included no significant special items, compared to $15 million related to the conversion of the No. 3 machine at the Wallula mill in 2018.

Selling, General, and Administrative Expenses

Selling, general, and administrative expenses (SG&A) increased $21 million in 2019, compared to 2018. The increase in 2019 was primarily due to higher employee salaries and fringes ($20 million).

Other Expense, Net

Other expense, net for the years ended December 31, 2019 and 2018 are set forth below (dollars in millions):

We discuss these items in more detail in Note 7, Other (Expense) Income, Net of the Condensed Notes to the Consolidated Financial Statements in “Part II, Item 8. Financial Statements” of this Form 10-K.

Income from Operations

Income from operations decreased $14 million, or 1.3%, for the year ended December 31, 2019, compared to 2018. Income from operations in 2019 included $4 million of expense for special items compared to $32 million in 2018. Special items in 2019 consisted of $3 million of charges for the disposal of fixed assets related to the containerboard mill conversion at our DeRidder, Louisiana mill and $1 million of charges related to the conversion of the Wallula, Washington mill No. 3 paper machine.  2018 special items included $30 million of charges related to the conversion of the Wallula No. 3 paper machine and $2 million related to facilities closures and other costs.

Packaging. Segment income from operations decreased $82 million to $963 million, compared to $1,045 million in 2018. The decrease in 2019 related primarily to higher operating and converting costs ($101 million), lower domestic and export containerboard prices and mix ($63 million), and other fixed costs ($26 million), partially offset by higher containerboard and corrugated products sales and production volumes ($69 million), lower annual outage expense ($24 million), and higher corrugated products prices and mix ($4 million). Special items in 2019 included expense of $3 million for the disposal of fixed assets related to the containerboard mill conversion at our DeRidder, Louisiana mill and $1 million of charges related to the conversion of the Wallula No. 3 paper machine. Special items in 2018 included $12 million of charges related to the conversion of the Wallula No. 3 paper machine and $2 million related to facilities closures and other costs.

Paper. Segment income from operations increased $78 million to $175 million, compared to $98 million in 2018. The increase primarily related to higher paper prices and mix ($58 million), lower operating costs ($22 million), lower depreciation expense ($12 million), and lower freight expense ($6 million), partially offset by lower sales and production volumes ($31 million), higher annual outage expense ($4 million), and other fixed costs ($3 million). There were an insignificant amount of

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special items in the Paper segment in 2019, compared to $18 million in 2018 related to the conversion of the Wallula No.3 paper machine to virgin kraft linerboard.

Non-Operating Pension Expense, Interest Expense, Net and Income Taxes

During 2019, non-operating pension expense increased $6 million compared to 2018. The increase in non-operating pension expense was primarily related to the 2018 asset performance (i.e. lower asset balances resulted in lower than expected return) and the amortization of the 2018 losses.

Interest expense, net, during 2019 increased $34 million compared to 2018. The increase is primarily related to the $38 million of charges from the Company’s November 2019 debt refinancing, partially offset by higher interest income as a result of higher cash balances in 2019 and lower interest, as the Company repaid $150 million of notes in March 2018.

During 2019, we recorded $221 million of income tax expense, compared with $232 million of income tax expense during 2018. The effective tax rate for 2019 and 2018 was 24.1% and 24.0%, respectively.

Liquidity and Capital Resources

Sources and Uses of Cash

Our primary sources of liquidity are net cash provided by operating activities and available borrowing capacity under our revolving credit facility. We ended the year with $680 million of cash and cash equivalents, $146 million of marketable debt securities, and $329 million of unused borrowing capacity under the revolving credit facility, net of letters of credit. Currently, our primary uses of cash are for operations, capital expenditures, acquisitions, debt service, common stock dividends, and repurchases of common stock. We believe that net cash generated from operating activities, cash on hand, available borrowings under our revolving credit facility and available capital through access to capital markets will be adequate to meet our liquidity and capital requirements, including payments of any declared common stock dividends, for the foreseeable future. As our debt or credit facilities become due, we will need to repay, extend or replace such facilities. Our ability to do so will be subject to future economic conditions and financial, business, and other factors, many of which are beyond our control.

Below is a summary table of our cash flows, followed by a discussion of our sources and uses of cash through operating activities, investing activities, and financing activities (dollars in millions):

Operating Activities

Our operating cash flow is primarily driven by our earnings and changes in operating assets and liabilities, such as accounts receivable, inventories, accounts payable and other accrued liabilities, as well as other factors described below. Cash requirements for operating activities are subject to PCA's operating needs and the timing of collection of receivables and payments of payables and expenses.

During 2019, net cash provided by operating activities was $1,207 million, compared to $1,180 million for 2018, an increase of $27 million. Cash increased by $62 million due to favorable changes in operating assets and liabilities, primarily due to the following:

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These favorable changes were partially offset by the following:

Cash from operations excluding changes in cash used for operating assets and liabilities decreased $35 million, primarily due to lower income from operations as discussed above, as well as higher pension contributions made in 2019 compared to 2018 of $36 million, partially offset by a higher deferred tax provision in 2019 compared to 2018.

Investing Activities

We used $547 million for investing activities in 2019, compared to $608 million in 2018. In 2019, we spent $400 million for internal capital investments, compared to $552 million in 2018. During 2019, we did not acquire any businesses, compared to $56 million for acquisitions in 2018 (Englander dZignPak). In October 2019, we used $146 million of cash-on-hand to invest in available-for-sale (AFS) marketable debt securities. For more information, see Note 12, Cash, Cash Equivalents, and Marketable Debt Securities, of the Notes to Consolidated Financial Statements in “Part II, Item 8. Financial Statements and Supplementary Data” of this Form 10-K.

The details of capital expenditures for property and equipment, excluding acquisitions, by segment for the years ended December 31, 2019 and 2018 are included in the table below (dollars in millions).

We expect capital investments in 2020 to be between $400 million and $425 million. These expenditures could increase or decrease as a result of a number of factors, including our financial results, strategic opportunities, future economic conditions, and our regulatory compliance requirements. We currently estimate capital expenditures to comply with environmental regulations will be about $10 million in 2020. Our estimated environmental expenditures could vary significantly depending upon the enactment of new environmental laws and regulations. For additional information, see “Environmental Matters” in this Management's Discussion and Analysis of Financial Condition and Results of Operations.

At December 31, 2019, the Company had commitments for capital expenditures of $213 million. The Company believes that cash-on-hand combined with cash flow from operations will be sufficient to fund these commitments.

Financing Activities

In 2019, net cash used for financing activities was $343 million, compared to $427 million of cash used for financing activities in 2018, a decrease of $84 million. We paid $31 million more in dividends on our common stock in 2019 ($299 million in total) than in 2018 ($268 million in total) and paid $124 million less in 2019 than in 2018 on our long-term debt, net of proceeds received. In 2019, we refinanced $900 million principal amount of our long term debt. Payments to redeem our old debt, including redemption premiums, exceeded the proceeds received from issuing the new debt by $27 million. We also paid $8 million of debt issuance costs. See Note 11 to the Consolidated Financial Statements included in Item 8 of this Annual Report on Form 10-K for more information on the debt refinancing. In 2018, we repaid at maturity $150 million principal amount of long-term debt from cash on hand.

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Commitments

Contractual Obligations

The table below sets forth our enforceable and legally binding obligations as of December 31, 2019 for the categories described below. Some of the amounts included in the table are based on management's estimates and assumptions about these obligations, including their duration, the possibility of renewal, anticipated actions by third parties, and other factors. Because these estimates and assumptions are necessarily subjective, our actual payments may vary from those reflected in the table. Purchase orders made in the ordinary course of business are excluded from the table below. Any amounts for which we are liable under purchase orders are reflected on the Consolidated Balance Sheets as accounts payable and accrued liabilities (dollars in millions):

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Off-Balance-Sheet Arrangements

The Company does not have any off-balance sheet arrangements as of December 31, 2019.

Inflation and Other General Cost Increases

We are subject to both contractual, inflation, and other general cost increases. If we are unable to offset these cost increases by price increases, growth, and/or cost reductions in our operations, these inflation and other general cost increases could have a material adverse effect on our operating cash flows, profitability, and liquidity.

In 2019, our total company costs including cost of sales (COS) and selling, general, and administrative expenses (SG&A) was $5.9 billion, and excluding non-cash costs (depreciation, depletion and amortization, pension and postretirement expense, and share-based compensation expense) was $5.4 billion. A 1% increase in COS and SG&A costs would increase costs by $59 million and cash costs by $54 million.

Certain items of product input costs have historically been subject to more cost volatility including fiber, purchased energy, and chemicals.

Energy

In 2019, our mills, including both packaging and paper mills, consumed about 97 million MMBTU’s of fuel, including internally generated and externally purchased, to produce both steam and electricity. The following table for 2019 provides the total MMBTU's purchased externally by fuel type each quarter and the average cost per MMBTU by fuel type for the year. Our mills represent about 90% of our total purchased fuel costs. The cost per MMBTU includes the cost of the fuel plus our transportation and delivery costs.

In addition, the mills purchased 23.02 million CkWh (hundred kilowatt-hours) of electricity in 2019. The purchases by quarter and the average cost per CkWh were as follows:

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Environmental Matters

Environmental compliance requirements are a significant factor affecting our business. We employ processes in the manufacture of containerboard, paper, and pulp, which result in various discharges, emissions and waste disposal. These processes are subject to numerous federal, state, local and foreign environmental laws and regulations. We operate and expect to continue to operate, under environmental permits and similar authorizations from various governmental authorities that regulate such discharges, emissions, and waste disposal. The most significant of these laws affecting the Company are:

We believe that we are currently in material compliance with these and all applicable environmental rules and regulations. Because environmental regulations are constantly evolving, the Company has incurred, and will continue to incur, costs to maintain compliance with these and other environmental laws. The Company works diligently to anticipate and budget for the impact of applicable environmental regulations, and does not currently expect that future environmental compliance obligations will materially affect its business or financial condition. For the years ended December 31, 2019, 2018, and 2017, we spent $41 million, $40 million, and $39 million, respectively, to comply with the requirements of these and other environmental laws. Additionally, we had $9 million of environmental capital expenditures in 2019, $7 million in 2018, and $9 million in 2017.

In January 2013, the U.S. Environmental Protection Agency (the “EPA”) established a three-year deadline for compliance with the Boiler MACT regulations, establishing air emissions standards and certain other requirements for industrial boilers. PCA's compliance actions involved modifying or replacing certain boilers, and all PCA mills are in full compliance with Boiler MACT requirements. On July 29, 2016, the U.S. Court of Appeals for the District of Columbia Circuit issued a ruling on the consolidated cases challenging Boiler MACT. The court vacated key portions of the rule, including emission limits for certain subcategories of solid fuel boilers, and remanded issues to the EPA for further rulemaking. At this time, we cannot predict with certainty how this decision will impact our existing Boiler MACT compliance efforts or whether we will incur additional costs to comply with any revised standards.

As is the case with any industrial operation, PCA has, in the past, incurred costs associated with the remediation of soil or groundwater contamination, as required by the federal Comprehensive Environmental Response, Compensation and Liability Act, commonly known as the federal “Superfund” law, and analogous state laws. Cleanup requirements arise with respect to properties the Company currently owns or operates, former facilities and off-site facilities where the Company has disposed of hazardous substances. As part of the sale to PCA of the containerboard and corrugated products business of Pactiv Corporation in April 1999, Pactiv agreed to retain all liability for all former facilities and all sites associated with pre-closing off-site waste disposal. Pactiv also retained environmentally impaired real property in Filer City, Michigan unrelated to current mill operations. In addition, OfficeMax (now an indirect, wholly owned subsidiary of Office Depot) retains responsibility for certain environmental liabilities related to some of the businesses, facilities, and assets we acquired from Boise. Generally, this responsibility relates to hazardous substance releases and other environmental incidents that arose before 2004. Some of these liabilities could be significant; however, Office Depot may not have sufficient funds to satisfy its indemnification obligations, and in some cases, we may not be entitled to such indemnification.

Because liability for remediation costs under environmental laws is strict, meaning that liability is imposed without fault, joint and several, meaning that liability is imposed on each party without regard to contribution, and retroactive, PCA could receive notifications of cleanup liability in the future and this liability could be material. From 2006 through 2019, there were no significant environmental remediation costs at PCA's mills and corrugated plants. As of December 31, 2019, we maintained an environmental reserve of $24.6 million relating to on-site landfills and surface impoundments as well as ongoing and anticipated remedial projects. The Company believes that it is not reasonably possible that future environmental expenses above the $24.6 million accrued at December 31, 2019, will have a material impact on its financial condition, results of operations, and cash flows.

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While legislation regarding the regulation of greenhouse gas emissions has been proposed at the federal level, it is uncertain whether such legislation will be passed and, if so, what the breadth and scope of such legislation will be. The result of the regulation of greenhouse gas emissions could be an increase in our future environmental compliance costs, through caps, taxes or additional capital expenditures to modify facilities, which may be material. However, climate change legislation and the resulting future energy policy could also provide us with opportunities if the use of renewable energy is encouraged. We currently self-generate a significant portion of our power requirements at our mills using bark, black liquor and biomass as fuel, which are derived from renewable resources. While we believe we are well-positioned to take advantage of any renewable energy incentives, it is uncertain what the ultimate costs and opportunities of any climate change legislation will be and how our business and industry will be affected.

Critical Accounting Policies and Estimates

Management’s discussion and analysis of financial condition and results of operations are based upon the Company’s consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States of America. The preparation of these financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosures of contingent assets and liabilities. On an ongoing basis, PCA evaluates its estimates, including those related to business combinations, goodwill and intangible assets, pensions and other postretirement benefits, environmental liabilities, income taxes, and long-lived asset impairment, among others. PCA bases its 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 under different assumptions or conditions.

Critical accounting estimates are those that are most important to the portrayal of our financial condition and results. These estimates require management's most difficult, subjective, or complex judgments. We review the development, selection, and disclosure of our critical accounting estimates with the Audit Committee of our Board of Directors. The Company believes that of its significant accounting policies, the following involve a higher degree of judgment and/or complexity:

Pensions

The Company accounts for defined benefit pension plans in accordance with Accounting Standards Codification (ASC) 715, Compensation - Retirement Benefits. The calculation of pension expense and pension liabilities requires decisions about a number of key assumptions that can significantly affect expense and liability amounts, including discount rates, expected return on plan assets, expected rate of compensation increases, longevity and service lives of participants, expected contributions, and other factors. The pension assumptions used to measure pension expense and liabilities are discussed in Note 13, Employee Benefit Plans and Other Postretirement Benefits.

We recognize the funded status of our pension plans on our Consolidated Balance Sheet and recognize the actuarial and experience gains and losses and the prior service costs and credits as a component of “Accumulated Other Comprehensive Loss” in our Consolidated Statement of Changes in Stockholders' Equity. Actual results that differ from assumptions are accumulated and amortized over future periods and, therefore, generally affect recognized expense in future periods. At December 31, 2019, we had approximately $158.9 million of actuarial losses and prior service costs, net of tax, recorded in “Accumulated other comprehensive loss” on our Consolidated Balance Sheet. Accumulated losses in excess of 10% of the greater of the projected benefit obligation or the market-related value of assets will be recognized on a straight-line basis over the average remaining service period of active employees in PCA plans (which is between seven and ten years) and over the average remaining lifetime of inactive participants of Boise plans (which is between 24 and 27 years), to the extent that losses are not offset by gains in subsequent years. While we believe that the assumptions used to measure our pension obligations are reasonable, differences in actual experience or changes in assumptions may materially affect our pension obligations and future expense.

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We believe that the accounting estimate related to pensions is a critical accounting estimate because it is highly susceptible to change from period to period. As discussed above, the future effects of pension plans on our financial position and results of operations will depend on economic conditions, employee demographics, mortality rates, retirement rates, investment performance, and funding decisions, among other factors. The following table presents selected assumptions used and expected to be used in the measurement of pension expense in the following periods (dollars in millions):

A change of 0.25% in either direction to the discount rate or the expected rate of return on plan assets would have had the following effect on 2019 and 2020 pension expense (dollars in millions):

For more information related to our pension benefit plans, see Note 13, Employee Benefit Plans and Other Postretirement Benefits, of the Notes to Consolidated Financial Statements in “Part II, Item 8. Financial Statements and Supplementary Data” of this Form 10-K.

Goodwill Impairment

Goodwill represents the excess of the cost of an acquired business over the fair value of the identifiable tangible and intangible assets acquired and liabilities assumed in a business combination. At December 31, 2019, we had $918.7 million of goodwill, of which $863.5 million was recorded in the Packaging segment and $55.2 million was recorded in our Paper segment.

We maintain two reporting units for purposes of our goodwill impairment testing, Packaging and Paper, which are the same as our operating segments discussed in Note 20, Segment Information, of the Notes to Consolidated Financial Statements in “Part II, Item 8. Financial Statements and Supplementary Data” of this Form 10-K. We test goodwill for impairment annually in the fourth quarter or sooner if events or changes in circumstances indicate that the carrying value of the asset may exceed fair value.  

Under ASU 2017-04 (Topic 350), Intangibles - Goodwill and Other – Simplifying the Test for Goodwill Impairment, companies are no longer required to determine the fair value of individual assets and liabilities of a reporting unit to measure goodwill impairment, thus eliminating Step Two of the analysis that was required under the prior guidance. Under ASU 2017-04, goodwill impairment testing is performed by comparing the fair value of the reporting unit with its carrying amount and recognizing an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. The Company adopted this ASU prospectively beginning with its annual goodwill impairment test in the fourth quarter of 2017.

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The update to the standard does not eliminate the optional qualitative assessment of goodwill impairment that is often used to determine if the quantitative assessment is necessary. The qualitative assessment requires the evaluation of certain events and circumstances such as macroeconomic conditions, industry and market considerations, cost factors and overall financial performance, as well as company and reporting unit specific items. If, after assessing these qualitative factors, the Company determines that it is more likely than not that the carrying value of the reporting unit is less than its fair value, then no further testing is required. Otherwise, the Company would perform a quantitative analysis.  

The quantitative analysis requires companies to compare the fair value of the reporting units to which goodwill was assigned to their respective carrying values. In calculating fair value, we use the income approach as our primary indicator of fair value. Under the income approach, we calculate the fair value of a reporting unit based on the present value of estimated future cash flows. These estimates are based on a number of factors including industry experience, business expectations and the economic environment. If the fair value exceeds the carrying value, no further work is required and no impairment loss is recognized. If the carrying value exceeds the fair value, the goodwill of the reporting unit is potentially impaired, and the carrying value of goodwill is then reduced to the implied value, or to zero if the fair value of the assets exceeds the fair value of the reporting unit, through an impairment charge.

During the annual goodwill impairment test performed in the fourth quarter of 2019, we assessed qualitative factors to determine whether it was more likely than not that the fair value of each reporting unit was less than its carrying value. Based on the results of the qualitative impairment test, we determined that it was more likely than not that the carrying value was less than the fair value of the Packaging and Paper reporting units.

If management's estimates of future operating results materially change or if there are changes to other assumptions, the estimated fair value of our goodwill could change significantly. Such change could result in impairment charges in future periods, which could have a significant noncash impact on our operating results and financial condition. We cannot predict the occurrence of future events that might adversely affect the reported value of our goodwill. As additional information becomes known, we may change our estimates.

Long-Lived Asset Impairment

An impairment of a long-lived asset exists when the carrying value of an asset is not recoverable through future undiscounted cash flows from operations and when the carrying value of the asset exceeds its fair value. Long-lived asset impairment is a critical accounting estimate, as it is susceptible to change from period to period.

We review the carrying value of long-lived assets, including intangible assets, for impairment when events or changes in circumstances indicate that the carrying amount of assets may not be recoverable. For purposes of testing for impairment, we group our long-lived assets at the lowest level for which identifiable cash flows are largely independent of the cash flows from other assets and liabilities. Our asset groupings vary based on the related business in which the long-lived asset is employed and the interrelationship between those long-lived assets in producing net cash flows. Asset groupings could change in the future if changes in the operations of the business or business environment affect the way particular long-lived assets are employed or the interrelationships between assets. To estimate whether the carrying value of an asset or asset group is impaired, we estimate the undiscounted cash flows that could be generated under a range of possible outcomes. To measure future cash flows, we are required to make assumptions about future production volumes, future product pricing, and future expenses to be incurred. In addition, estimates of future cash flows may change based on the availability of fiber, environmental requirements, capital spending, and other strategic management decisions. We estimate the fair value of an asset or asset group based on quoted market prices for similar assets and liabilities or inputs that are observable either directly (Level 1 measurement) or indirectly (the amount for which the asset(s) could be bought or sold in a current transaction with a third party) when available (Level 2 measurement). When quoted market prices are not available, we use a discounted cash flow model to estimate fair value (Level 3 measurement).

We periodically assess the estimated useful lives of our assets. Changes in circumstances, such as changes to our operational or capital strategy, changes in regulation, or technological advances, may result in the actual useful lives differing from our estimates. Revisions to the estimated useful lives of assets requires judgment and constitutes a change in accounting estimate, which is accounted for prospectively by adjusting or accelerating depreciation and amortization rates. In 2019 and 2018, we recognized incremental depreciation expense of $0.3 million and $14.5 million, respectively, primarily related to the second quarter 2018 discontinuation of uncoated free sheet and coated one-side white paper grades at the Wallula, Washington mill associated with the conversion of the No. 3 paper machine to produce virgin kraft linerboard. Additionally, in conjunction with the conversion of the No. 3 paper machine, we recognized an impairment loss of $3.1 million associated with the fiber farm asset group during 2018.

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New and Recently Adopted Accounting Standards

For a listing of our new and recently adopted accounting standards, see Note 2, Summary of Significant Accounting Policies, of the Notes to Consolidated Financial Statements in “Part II, Item 8. Financial Statements and Supplementary Data” of this Form 10-K.

Reconciliations of Non-GAAP Financial Measures to Reported Amounts

Net income excluding special items, EBITDA, and EBITDA excluding special items are non-GAAP financial measures. Management excludes special items, as it believes that these items are not necessarily reflective of the ongoing operations of our business. These measures are presented because they provide a means to evaluate the performance of our segments and our Company on an ongoing basis using the same measures that are used by our management, because these measures assist in providing a meaningful comparison between periods and because these measures are frequently used by investors and other interested parties in the evaluation of companies and the performance of their segments. Any analysis of non-GAAP financial measures should be done in conjunction with results presented in accordance with GAAP. The non-GAAP measures are not intended to be substitutes for GAAP financial measures and should not be used as such. Reconciliations of the non-GAAP measures to the most comparable measure reported in accordance with GAAP for the years ended December 31, 2019 and 2018 follow (dollars in millions): 

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The following table reconciles net income to EBITDA and EBITDA excluding special items for the periods indicated (dollars in millions):

The following table reconciles segment income (loss) to EBITDA and EBITDA excluding special items (dollars in millions):

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PCA is exposed to the impact of interest rate changes and changes in the market value of its financial instruments. PCA periodically enters into derivatives in order to minimize these risks, but not for trading purposes. We were not party to any derivative-based arrangements at December 31, 2019. For a discussion of derivatives and hedging activities, see Note 16, Derivative Instruments and Hedging Activities, of the Notes to Consolidated Financial Statements in “Part II, Item 8. Financial Statements and Supplementary Data” of this Form 10-K.

At December 31, 2019, the interest rates on 100% of PCA’s outstanding debt are fixed.

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INDEX TO FINANCIAL STATEMENTS

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Stockholders and Board of Directors

Packaging Corporation of America:

Opinions on the Consolidated Financial Statements and Internal Control Over Financial Reporting

We have audited the accompanying consolidated balance sheets of Packaging Corporation of America and subsidiaries (the Company) as of December 31, 2019 and 2018, the related consolidated statements of income and comprehensive income, changes in stockholders’ equity, and cash flows for each of the years in the three-year period ended December 31, 2019, and the related notes (collectively, the consolidated financial statements). We also have audited the Company’s internal control over financial reporting as of December 31, 2019, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

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, 2019 and 2018, and the results of its operations and its cash flows for each of the years in the three-year period ended December 31, 2019, in conformity with U.S. generally accepted accounting principles. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2019 based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

Change in Accounting Principle

As discussed in Note 2 to the consolidated financial statements, the Company has changed its method of accounting for leases effective January 1, 2019 due to the adoption of Accounting Standards Update 2016-02, Leases (Topic 842), and its subsequent amendments.

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 the accompanying “Management’s Report on Internal Control Over Financial Reporting”. Our responsibility is to express an opinion on the Company’s consolidated financial statements and an opinion 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.

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

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accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) 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 (3) 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 Matter

The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the consolidated financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of the critical audit matter 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 matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Evaluation of the value of the pension obligation

As discussed in Note 13 to the consolidated financial statements, the Company’s estimated pension benefit obligation totaled $1,420 million as of December 31, 2019. The pension benefit obligation is measured at the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered before that date. The determination of the Company’s pension benefit obligation is dependent, in part, on the selection of certain actuarial assumptions, including the discount rate.

We identified the evaluation of the value of the pension benefit obligation as a critical audit matter because of the specialized skills required to measure the value of the pension benefit obligation. In addition, the measurement of the pension benefit obligation is sensitive to minor changes in the discount rate assumption.

The primary procedures we performed to address this critical audit matter included the following. We tested certain internal controls over the Company’s pension benefit obligation valuation process, including controls related to the development of the discount rate. We involved an actuarial professional with specialized skills and knowledge, who assisted in understanding and assessing the actuarial methods and assumptions used to measure the pension benefit obligation. In addition, the actuarial professional assisted with our evaluation of the discount rate by assessing:

•changes in the discount rate from the prior year against changes in published indices,

•the pattern of cash flows, including consideration of the plan type and plan provisions, and

•the selected yield curve and its consistency with the prior year and spot rates.

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Packaging Corporation of America

Consolidated Statements of Income and Comprehensive Income

(dollars in millions, except per-share data)