12.31.12 10-K


UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
Form 10-K
 
ý
ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
 
For the Fiscal Year Ended December 31, 2012
or
¨
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
 
For the Transition Period from              to             
Commission File No. 001-32260
 
Westlake Chemical Corporation
(Exact name of registrant as specified in its charter)
 
 
Delaware
 
76-0346924
(State or other jurisdiction of
incorporation or organization)
 
(I.R.S. Employer
Identification No.)
2801 Post Oak Boulevard, Suite 600
Houston, Texas 77056
(Address of principal executive offices, including zip code)
(713) 960-9111
(Registrant's telephone number, including area code)
 
 Securities registered pursuant to Section 12(b) of the Act:
Title of each class
 
Name of each exchange on which registered
Common Stock, $0.01 par value
 
New York Stock Exchange, Inc.
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  ý    No  ¨
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Exchange Act.    Yes  ¨    No  ý
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  ý    No  ¨
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  ý    No  ¨
Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.  ý




Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a smaller reporting company. See definitions of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act:
 Large accelerated filer  x
  
Accelerated filer ¨  
  
Non-accelerated filer ¨  
  
Smaller reporting company ¨
 
  
 
  
(Do not check if a smaller
reporting company)
  
 
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).    Yes  ¨    No  ý
The aggregate market value of the registrant's voting stock held by non-affiliates of the registrant on June 30, 2012, the end of the registrant's most recently completed second fiscal quarter, based on a closing price on June 30, 2012 of $52.26 on the New York Stock Exchange was approximately $1.0 billion.
There were 66,903,035 shares of the registrant's common stock outstanding as of February 15, 2013.
DOCUMENTS INCORPORATED BY REFERENCE:
Certain information required by Part II and Part III of this Form 10-K is incorporated by reference from the registrant's definitive Proxy Statement to be filed pursuant to Regulation 14A with respect to the registrant's 2013 Annual Meeting of Stockholders to be held on May 17, 2013.




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INDUSTRY AND MARKET DATA
Industry and market data used throughout this Form 10-K were obtained through internal company research, surveys and studies conducted by unrelated third parties and publicly available industry and general publications, including information from IHS Chemical and Chemical Data, Inc. We have not independently verified market and industry data from external sources. While we believe internal company estimates are reliable and market definitions are appropriate, neither such estimates nor these definitions have been verified by any independent sources.
PRODUCTION CAPACITY
Unless we state otherwise, annual production capacity estimates used throughout this Form 10-K represent rated capacity of the facilities at December 31, 2012. We calculated rated capacity by estimating the number of days in a typical year that a production unit of a plant is expected to operate, after allowing for downtime for regular maintenance, and multiplying that number by an amount equal to the unit's optimal daily output based on the design feedstock mix. Because the rated capacity of a production unit is an estimated amount, actual production volumes may be more or less than the rated capacity.
NON-GAAP FINANCIAL MEASURES
The body of accounting principles generally accepted in the United States is commonly referred to as "GAAP." For this purpose, a non-GAAP financial measure is generally defined by the Securities and Exchange Commission ("SEC") as one that purports to measure historical or future financial performance, financial position or cash flows, but excludes or includes amounts that would not be so adjusted in the most comparable GAAP measures. In this report, we disclose so-called non-GAAP financial measures, primarily EBITDA. EBITDA is calculated as net income before interest expense, income taxes, depreciation and amortization. The non-GAAP financial measures described in this Form 10-K are not substitutes for the GAAP measures of earnings and cash flow.
EBITDA is included in this Form 10-K because our management considers it an important supplemental measure of our performance and believes that it is frequently used by securities analysts, investors and other interested parties in the evaluation of companies in our industry, some of which present EBITDA when reporting their results. We regularly evaluate our performance as compared to other companies in our industry that have different financing and capital structures and/or tax rates by using EBITDA. In addition, we utilize EBITDA in evaluating acquisition targets. Management also believes that EBITDA is a useful tool for measuring our ability to meet our future debt service, capital expenditures and working capital requirements, and EBITDA is commonly used by us and our investors to measure our ability to service indebtedness. EBITDA is not a substitute for the GAAP measures of earnings or of cash flow and is not necessarily a measure of our ability to fund our cash needs. In addition, it should be noted that companies calculate EBITDA differently and, therefore, EBITDA as presented for us may not be comparable to EBITDA reported by other companies. EBITDA has material limitations as a performance measure because it excludes interest expense, depreciation and amortization, and income taxes.



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PART I

Item 1. Business
General
We are a vertically integrated manufacturer and marketer of basic chemicals, vinyls, polymers and fabricated building products. Our products include some of the most widely used chemicals in the world, which are fundamental to many diverse consumer and industrial markets, including flexible and rigid packaging, automotive products, coatings, residential and commercial construction as well as other durable and non-durable goods. We operate in two principal business segments, Olefins and Vinyls, and we are an integrated producer of vinyls with substantial downstream integration into polyvinyl chloride ("PVC") building products.
We began operations in 1986 after our first polyethylene plant, an Olefins segment business, near Lake Charles, Louisiana was acquired from Occidental Petroleum Corporation. We began our vinyls operations in 1990 with the acquisition of a vinyl chloride monomer ("VCM") plant in Calvert City, Kentucky from the Goodrich Corporation. In 1992, we commenced our Vinyls segment building products operations after acquiring three PVC pipe plants. Since 1986, we have grown rapidly into an integrated producer of petrochemicals, polymers and building products. We achieved this by acquiring existing plants or constructing new plants (including our joint venture in China) and completing numerous capacity or production line expansions.
We benefit from highly integrated production facilities that allow us to process raw materials into higher value-added chemicals and building products. As of February 15, 2013, we had 11.8 billion pounds per year of aggregate production capacity at 13 manufacturing sites in North America. We also have a 59% interest in a joint venture in China that operates a vinyls facility.
Olefins Business
Products
Olefins are the basic building blocks used to create a wide variety of petrochemical products. We manufacture ethylene, polyethylene, styrene and associated co-products at our manufacturing facility in Lake Charles and polyethylene at our Longview, Texas facility. We have two ethylene plants, two polyethylene plants and one styrene monomer plant at our Lake Charles complex. We have three polyethylene plants and a specialty polyethylene wax plant at our Longview facility. The following table illustrates our production capacities at February 15, 2013 by principal product and the primary end uses of these materials:
    Product
 
Annual Capacity
 
    End Uses
 
 
(Millions of pounds)
 
 
Ethylene
 
2,500

 
Polyethylene, ethylene dichloride ("EDC"), styrene,
   ethylene oxide/ethylene glycol
Low-Density Polyethylene ("LDPE")
 
1,500

 
High clarity packaging, shrink films, laundry and dry
   cleaning bags, ice bags, frozen foods packaging, bakery
   bags, coated paper board, cup stock, paper folding
   cartons, lids, closures and general purpose molding
Linear Low-Density Polyethylene
   ("LLDPE")
 
980

 
Heavy-duty films and bags, general purpose liners
Styrene
 
570

 
Disposables, packaging material, appliances, paints and
   coatings, resins and building materials
Ethylene. Ethylene is the world's most widely used petrochemical in terms of volume. It is the key building block used to produce a large number of higher value-added chemicals including polyethylene, EDC, VCM and styrene. We have the capacity to produce 2.5 billion pounds of ethylene per year at our Lake Charles complex and the capability to consume all of our production internally to produce polyethylene and styrene monomer in our Olefins business and to produce VCM and EDC in our Vinyls business. We also produce ethylene in our Vinyls segment at our Calvert City facility, all of which is used internally in the production of VCM. For the annual ethylene production capacity of our Vinyls business, see "Business—Vinyls Business." In addition, we produce ethylene co-products including chemical grade propylene, crude butadiene, pyrolysis gasoline and hydrogen. We sell our entire output of these co-products to external customers. In January 2013, we commenced the expansion of the Petro 2 ethylene unit at our Lake Charles complex as part of our previously announced expansion program to increase the ethane-based ethylene capacity of both of the ethylene units at our Lake Charles complex. The Petro 2 ethylene unit expansion is expected to be completed in the first quarter of 2013 in conjunction with a planned maintenance turnaround and is expected to increase ethane-based ethylene capacity by approximately 230 - 240 million pounds annually in support of

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our ethylene integration strategy. The Petro 2 ethylene unit is expected to be down for approximately 60 days for the planned maintenance turnaround. The additional capacity from this expansion is expected to provide ethylene for existing internal uses. In addition, we plan to expand the ethane-based ethylene capacity of the second ethylene unit at our Lake Charles complex, but we are still evaluating plans for this expansion.
Polyethylene. Polyethylene, the world's most widely consumed polymer, is used in the manufacture of a wide variety of film, coatings and molded product applications primarily used in packaging. Polyethylene is generally classified as either LDPE, LLDPE or high-density polyethylene ("HDPE"). The density correlates to the relative stiffness of the products. The difference between LDPE and LLDPE is molecular, and products produced from LLDPE are stronger than products produced from LDPE. LDPE is used in end products such as bread bags, dry cleaning bags, food wraps and milk carton and snack package coatings. LLDPE is used for higher film strength applications such as stretch film and heavy duty sacks. HDPE is used to manufacture products such as grocery, merchandise and trash bags, plastic containers, plastic closures and pipe.
We are the largest producer of LDPE in North America based on capacity and, in 2012, our annual capacity of 1.5 billion pounds was available in numerous formulations to meet the needs of our diverse customer base. We also have the capacity to produce 980 million pounds of LLDPE per year in various different formulations. Our Lake Charles and Longview facilities have the capability to produce HDPE. We produce LDPE and LLDPE at both Lake Charles and Longview. We sell polyethylene to external customers as a final product in pellet form.
Styrene. Styrene is used to produce derivatives such as polystyrene, acrylonitrile butadiene styrene, unsaturated polyester and synthetic rubber. These derivatives are used in a number of applications including consumer disposables, food packaging, housewares, paints and coatings, building materials, tires and toys. We produce styrene at our Lake Charles plant, where we have the capacity to produce 570 million pounds of styrene per year, all of which is sold to external customers.
Feedstocks
We are highly integrated along our olefins product chain. We produce most of the ethylene required to produce our polyethylene, VCM and styrene. Ethylene can be produced from either petroleum liquid feedstocks, such as naphtha, condensates and gas oils, or from natural gas liquid feedstocks, such as ethane, propane and butane. One of our ethylene plants uses ethane as its feedstock and the other can use ethane, ethane/propane mix, propane, butane and naphtha. See "Olefins Business—Products—Ethylene" above with respect to our ethane-based ethylene capacity expansion project. We receive feedstock at our Lake Charles facility through several pipelines from a variety of suppliers in Texas and Louisiana. We own a 50% interest in a 104-mile natural gas liquids pipeline from Mont Belvieu, Texas to our Lake Charles complex. We also own a 200-mile ethylene pipeline that runs from Mont Belvieu to our Longview facility.
In addition to our internally supplied ethylene, we also acquire ethylene from third parties in order to supply a portion of our ethylene requirements. We acquire butene and hexene to manufacture polyethylene and benzene to manufacture styrene. We receive butene and hexene at the Lake Charles complex and hexene at the Longview complex via rail car from several suppliers. We receive benzene via barges, ships and pipeline pursuant to short-term arrangements. We purchase butene and hexene pursuant to multi-year contracts, some of which are renewable for an additional term subject to either party to the contract notifying the other party that it does not wish to renew the contract.
Marketing, Sales and Distribution
We have an internal sales force that sells our products directly to our customers. Our polyethylene customers are some of the nation's largest producers of film and flexible packaging.
We sell ethylene and ethylene co-products to external customers. Our primary ethylene co-products are chemical grade propylene, crude butadiene, pyrolysis gasoline and hydrogen. The majority of sales in our Olefins business are made under long-term agreements.
We typically ship our ethylene and propylene via pipeline systems that connect our ethylene plants to numerous external customers. We also have storage agreements and exchange agreements that allow us access to customers who are not directly connected to the pipeline system. We transport our polyethylene, styrene, crude butadiene and pyrolysis gasoline by rail or truck. Additionally, styrene can be transported by barge or ship.
No single customer accounted for 10% or more of net sales for the Olefins segment in 2012.
Competition
The markets in which our Olefins business operates are highly competitive. We compete on the basis of customer service, product deliverability, quality, consistency, performance and price. Our competitors in the ethylene, polyethylene and styrene

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markets are typically some of the world's largest chemical companies, including Chevron Phillips Chemical Company LP, The Dow Chemical Company, ExxonMobil Chemical Company, INEOS (successor to BP Chemicals Ltd.), LyondellBasell Industries and NOVA Chemicals Corporation, a subsidiary of The International Petroleum Investment Company of the Emirate of Abu Dhabi.
Vinyls Business
Products
Principal products in our integrated Vinyls segment include PVC, VCM, EDC, chlorine, caustic soda and ethylene. We also manufacture and sell building products fabricated from PVC, including pipe, fence and deck, and window and door components. We manage our integrated Vinyls production chain, from the basic chemicals to finished building products, to optimize product margins and capacity utilization. Our primary manufacturing facilities are located in our Calvert City and Geismar, Louisiana complexes. Our Calvert City facility includes an ethylene plant, a chlor-alkali plant, a VCM plant, a PVC plant and a large diameter PVC pipe plant. Our Geismar facility includes an EDC plant, a VCM plant and a PVC plant. As of February 15, 2013, we operated and owned 10 building product facilities and owned a 59% interest in a joint venture in China that produces PVC resin, building products and PVC film and sheet. The following table illustrates our production capacities at February 15, 2013 by principal product and the end uses of these products:
    Product (1)
 
Annual Capacity (2)
 
    End Uses
 
 
(Millions of pounds)
 
 
PVC
 
1,700

 
Construction materials including pipe, siding, profiles for
   windows and doors, film and sheet for packaging and
   other consumer applications
VCM
 
1,850

 
PVC
Chlorine
 
550

 
VCM, organic/inorganic chemicals, bleach
Caustic Soda
 
605

 
Pulp and paper, organic/inorganic chemicals,
   neutralization, alumina
Ethylene
 
450

 
VCM
Building Products
 
1,072

 
Pipe: water and sewer, plumbing, irrigation, conduit;
   window and door components; fence and deck
   components

______________________________
(1)
EDC, a VCM intermediate product, is not included in the table.
(2)
Annual capacity excludes total capacity of 145 million pounds of PVC film and sheet, 300 million pounds of PVC resin and 33 million pounds of building products from the joint venture in China (in which we have a 59% interest).
PVC. PVC, the world's third most widely used plastic, is an attractive alternative to traditional materials such as glass, metal, wood, concrete and other plastic materials because of its versatility, durability and cost-competitiveness. PVC is produced from VCM, which is, in turn, made from chlorine and ethylene. PVC compounds are made by combining PVC resin with various additives in order to make either rigid and impact-resistant or soft and flexible compounds. The various compounds are then fabricated into end-products through extrusion, calendering, injection-molding or blow-molding. Flexible PVC compounds are used for wire and cable insulation, automotive interior and exterior trims and packaging. Rigid extrusion PVC compounds are commonly used in window frames, vertical blinds and construction products, including pipe and siding. Injection-molding PVC compounds are used in specialty products such as computer housings and keyboards, appliance parts and bottles. We have the capacity to produce 1.1 billion pounds of PVC per year at our Calvert City facility and 600 million pounds per year at our Geismar facility. We have the capacity to use a majority of our PVC internally in the production of our building products. The remainder of our PVC is sold to downstream fabricators and the export market. In October 2012, we announced an expansion of the existing PVC plant in Calvert City, which should allow us to take advantage of the announced planned increase in ethylene production at our Calvert City complex and to provide additional PVC resin to meet the growing demands of our global customers. The expansion of the Calvert City PVC plant is expected to increase PVC resin capacity by approximately 200 million pounds annually and is targeted for completion by late 2014.
VCM. VCM is used to produce PVC, solvents and PVC-related products. We use ethylene and chlorine to produce VCM. We have the capacity to produce 1.3 billion pounds of VCM per year at our Calvert City facility and 550 million pounds per year at our Geismar facility. The majority of our VCM is used internally in our PVC operations.
Chlorine and Caustic Soda. We combine salt and electricity to produce chlorine and caustic soda, commonly referred to as chlor-alkali, at our Calvert City facility. We use our chlorine production in our VCM plants. We currently have the capacity

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to supply approximately 50% of our chlorine requirements internally. We purchase the remaining amount at market prices. Our caustic soda is sold to external customers who use it for, among other things, the production of pulp and paper, organic and inorganic chemicals and alumina. In August 2010, we announced that we intend to proceed with the previously announced construction of a new chlor-alkali plant to be located at our vinyls manufacturing complex in Geismar. The new chlor-alkali unit is designed to produce up to 350,000 electro chemical units ("ECUs"), or 700 million pounds, annually upon completion, bringing our total capacity to 625,000 ECUs, or 1.3 billion pounds, per year. The new plant will improve the vertical integration of our vinyls business from chlorine downstream into VCM and PVC and increase caustic soda sales. The project is currently targeted for start-up in the second half of 2013.
Ethylene. We use the ethylene produced at Calvert City internally to produce VCM, and Calvert City has the capacity to produce approximately 50% of the ethylene required for our total VCM production. We obtain the remainder of the ethylene we need for our Vinyls business from our Olefins business and from third party purchases. In October 2012, we announced a project for the conversion of the feedstock for our Calvert City ethylene plant from propane to ethane and the planned increase in ethylene capacity from 450 million pounds annually to 630 million pounds annually. This expansion and feedstock conversion project is expected to enhance our vinyl chain integration and leverage low cost ethane being developed in the Marcellus shale area. The ethylene expansion and feedstock conversion project is targeted for start-up in the second quarter of 2014. In addition, in December 2011, we announced plans to perform a major modernization of the ethylene production facility at our Calvert City complex. The modernization is expected to reduce costs and improve operating efficiency and energy consumption. We currently expect the modernization to be completed by mid-2013.
Building Products. Products made from PVC are used in construction materials ranging from water and sewer systems to home and commercial applications for fence, deck, window and door systems. We manufacture and market water, sewer, irrigation and conduit pipe products under the "North American Pipe" brand. We also manufacture and market PVC fence, decking, windows and door profiles under the "Westech Building Products" brand. All of our building products are sold to external customers. All of the PVC we require for our building products is produced internally. The combined capacity of our 10 building products plants is 1.1 billion pounds per year.
China Joint Venture. We own a 59% interest in Suzhou Huasu Plastics Co. Ltd., a joint venture based near Shanghai, China. Our joint venture partners are a local Chinese chemical company and a subsidiary of INEOS. In 1995, this joint venture constructed and began operating a PVC film plant that has a current annual capacity of 145 million pounds of PVC film. In 1999, the joint venture constructed and began operating a PVC resin plant that has an annual capacity of 300 million pounds of PVC resin. In 2008, the joint venture began producing building products with an annual capacity of 33 million pounds of product.
Feedstocks
We are highly integrated along our vinyls production chain. We produce most of the ethylene, all of the VCM and PVC and approximately 50% of our chlorine requirements used in our Vinyls business. The remainder of our chlorine requirements is purchased at market prices. Ethylene produced at our Calvert City facility utilizes propane feedstock. In October 2012, we announced a project for the conversion of the feedstock for our Calvert City ethylene plant from propane to ethane and the planned increase in ethylene capacity from 450 million pounds annually to 630 million pounds annually. The ethylene expansion and feedstock conversion project is targeted for start-up in the second quarter of 2014. We purchase the salt required for our chlor-alkali plant pursuant to a long-term contract. We purchase electricity for our Calvert City facility production from the Tennessee Valley Authority under a long-term contract.
We are an integrated producer of vinyls with substantial downstream integration into building products. Our Calvert City and Geismar facilities supply all the PVC required for our building products plants. The remaining feedstocks for building products include pigments, fillers and stabilizers, which we purchase under short-term contracts based on prevailing market prices.
Marketing, Sales and Distribution
We are the second largest manufacturer of PVC pipe by capacity in the United States. We sell a majority of our PVC pipe through a combination of manufacturer's representatives and our internal sales force to distributors who serve the wholesale PVC pipe market. We use a regional sales approach that allows us to provide focused customer service and to meet the specified needs of individual customers. We use an internal sales force to market and sell our fence, window and door profiles. We have the capacity to use a majority of our PVC internally in the production of our building products. The remainder of our PVC is sold to downstream fabricators and the export market.
We sell substantially all of our caustic soda production to external customers, concentrating on customers in Calvert City's geographical area to minimize transportation costs.

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No single customer accounted for 10% or more of net sales for the Vinyls segment in 2012.
Competition
Competition in the vinyls market is based on product availability, product performance, customer service and price. We compete in the vinyls market with other producers including Formosa Plastics Corporation, Axiall Corporation (formerly known as Georgia Gulf Corporation), Oxy Chem, LP and Shintech, Inc.
Competition in the building products market is based on on-time delivery, product quality, customer service, product consistency and price. We compete in the building products market with other producers and fabricators including Diamond Plastics Corporation and JM Eagle. We are the second largest manufacturer of PVC pipe by capacity in the United States. We are also one of the largest manufacturers of PVC fence components by volume in the United States.
Environmental and Other Regulation
As is common in our industry, obtaining, producing and distributing many of our products involves the use, storage, transportation and disposal of large quantities of toxic and hazardous materials, and our manufacturing operations require the generation and disposal of large quantities of hazardous wastes. We are subject to extensive, evolving and increasingly stringent federal, state and local environmental laws and regulations, which address, among other things, the following:
emissions to the air;
discharges to land or to surface and subsurface waters;
other releases into the environment;
remediation of contaminated sites;
generation, handling, storage, transportation, treatment and disposal of waste materials; and
maintenance of safe conditions in the workplace.
We are subject to environmental laws and regulations that can impose civil and criminal sanctions and that may require us to mitigate the effects of contamination caused by the release or disposal of hazardous substances into the environment. An owner or operator of property may be held strictly liable for remediating contamination without regard to whether that person caused the contamination, and without regard to whether the practices that resulted in the contamination were legal at the time they occurred. Because several of our production sites have a history of industrial use, it is impossible to predict precisely what effect these legal requirements will have on us.
Contract Disputes with Goodrich and PolyOne. In connection with the 1990 and 1997 acquisitions of the Goodrich Corporation ("Goodrich") chemical manufacturing complex in Calvert City, Goodrich agreed to indemnify us for any liabilities related to preexisting contamination at the complex. For our part, we agreed to indemnify Goodrich for post-closing contamination caused by our operations. The soil and groundwater at the complex, which does not include our nearby PVC facility, had been extensively contaminated under Goodrich's operations. In 1993, Goodrich spun off the predecessor of PolyOne Corporation ("PolyOne"), and that predecessor assumed Goodrich's indemnification obligations relating to preexisting contamination.
In 2003, litigation arose among us, Goodrich and PolyOne with respect to the allocation of the cost of remediating contamination at the site. The parties settled this litigation in December 2007, and the case was dismissed. In the settlement the parties agreed that, among other things: (1) PolyOne would pay 100% of the costs (with specified exceptions), net of recoveries or credits from third parties, incurred with respect to environmental issues at the Calvert City site from August 1, 2007 forward; (2) either we or PolyOne might, from time to time in the future (but not more than once every five years), institute an arbitration proceeding to adjust that percentage; and (3) we and PolyOne would negotiate a new environmental remediation utilities and services agreement to cover our provision to or on behalf of PolyOne of certain environmental remediation services at the site. The current environmental remediation activities at the Calvert City complex do not have a specified termination date but are expected to last for the foreseeable future. The costs incurred by us that have been invoiced to PolyOne to provide the environmental remediation services were $2.7 million and $3.3 million in 2012 and 2011, respectively. By letter dated March 16, 2010, PolyOne notified us that it was initiating an arbitration proceeding under the settlement agreement. In this proceeding, PolyOne seeks to readjust the percentage allocation of costs and to recover approximately $1.4 million from us in reimbursement of previously paid remediation costs. The arbitration is currently stayed.
Administrative Proceedings. There are several administrative proceedings in Kentucky involving us, Goodrich and PolyOne related to the same manufacturing complex in Calvert City. In 2003, the Kentucky Environmental and Public Protection Cabinet (the "Cabinet") re-issued Goodrich's Resource Conservation and Recovery Act ("RCRA") permit which requires Goodrich to remediate contamination at the Calvert City manufacturing complex. Both Goodrich and PolyOne

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challenged various terms of the permit in an attempt to shift Goodrich's clean-up obligations under the permit to us. We intervened in the proceedings. The Cabinet has suspended all corrective action under the RCRA permit in deference to a remedial investigation and feasibility study ("RIFS") being conducted pursuant to an Administrative Settlement Agreement ("AOC"), which became effective on December 9, 2009. See "Change in Regulatory Regime" below. The proceedings have been postponed. Periodic status conferences will be held to evaluate whether additional proceedings will be required.
Change in Regulatory Regime. In May 2009, the Cabinet sent a letter to the U.S. Environmental Protection Agency ("EPA") requesting the EPA's assistance in addressing contamination at the Calvert City site under the U.S. Comprehensive Environmental Response, Compensation, and Liability Act ("CERCLA"). In its response to the Cabinet also in May 2009, the EPA stated that it concurred with the Cabinet's request and would incorporate work previously conducted under the Cabinet's RCRA authority into the EPA's cleanup efforts under CERCLA. Since 1983, the EPA has been addressing contamination at an abandoned landfill adjacent to our plant which had been operated by Goodrich and which was being remediated pursuant to CERCLA. During the past two years, the EPA has directed Goodrich and PolyOne to conduct additional investigation activities at the landfill and at our plant. In June 2009, the EPA notified us that we may have potential liability under section 107(a) of CERCLA at our plant site. Liability under section 107(a) of CERCLA is strict and joint and several. The EPA also identified Goodrich and PolyOne, among others, as potentially responsible parties at the plant site. We negotiated, in conjunction with the other potentially responsible parties, the AOC and an order to conduct the RIFS. The parties submitted and received EPA approval for a RIFS work plan to implement the AOC. The parties are currently conducting the RIFS.
Monetary Relief. Except as noted above, with respect to the settlement of the contract litigation among us, Goodrich and PolyOne, none of the court, the Cabinet nor the EPA has established any allocation of the costs of remediation among the various parties that are involved in the judicial and administrative proceedings discussed above. At this time, we are not able to estimate the loss or reasonable possible loss, if any, on our financial statements that could result from the resolution of these proceedings. Any cash expenditures that we might incur in the future with respect to the remediation of contamination at the complex would likely be spread out over an extended period. As a result, we believe it is unlikely that any remediation costs allocable to us will be material in terms of expenditures made in any individual reporting period.
EPA Audit of Ethylene Units in Lake Charles. During 2007, the EPA conducted an audit of our ethylene units in Lake Charles, with a focus on leak detection and repair ("LDAR"). As a result of the audit, the EPA alleged that we had violated certain environmental laws and regulations pertaining to LDAR. We have agreed to settle this matter, subject to court approval, by paying a cash penalty of $0.5 million and have recorded an accrual in such amount.
General. It is our policy to comply with all environmental, health and safety requirements and to provide safe and environmentally sound workplaces for our employees. In some cases, compliance can be achieved only by incurring capital expenditures, and we are faced with instances of noncompliance from time to time. In 2012, we made capital expenditures of $4.4 million related to environmental compliance. We estimate that we will make capital expenditures of approximately $10.0 million in 2013 and $13.0 million in 2014, respectively, related to environmental compliance. The expected 2013 and 2014 capital expenditures are relatively higher than the amounts we have actually spent related to environmental compliance in recent years in large part due to new EPA regulations such as the PVC maximum achievable control technology ("MACT") rules and increasingly stringent requirements associated with environmental permits. The remainder of the 2013 and 2014 estimated amounts are related to equipment replacement and upgrades. We anticipate that stringent environmental regulations will continue to be imposed on us and the industry in general. Although we cannot predict with certainty future expenditures, management believes that our current spending trends will continue.
It is difficult to estimate the future costs of environmental protection and remediation because of many uncertainties, including uncertainties about the status of laws, regulations and information related to individual locations and sites and our ability to rely on third parties to carry out such remediation. Subject to the foregoing, but taking into consideration our experience regarding environmental matters of a similar nature and facts currently known, and except for the outcome of pending litigation and regulatory proceedings, which we cannot predict, but which could have a material adverse effect on us, we believe that capital expenditures and remedial actions to comply with existing laws governing environmental protection will not have a material adverse effect on our business and financial results.
Employees
As of December 31, 2012, we had 1,895 employees in the following areas:
Category
 
Number
Olefins segment
 
719

Vinyls segment
 
1,049

Corporate and other
 
127


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Approximately 11% of our employees are represented by labor unions, and all of these employees are working under collective bargaining agreements. The collective bargaining agreements expire in 2014. There have been no strikes or lockouts, and we have not experienced any work stoppages throughout our history. We believe that our relationship with the local union officials and bargaining committees is open and positive.
Technology
Historically, our technology strategy has been to selectively acquire licenses for and to improve upon third-party proprietary technology. Our selection process incorporates many factors, including the cost of the technology, our customers' requirements, raw material and energy consumption rates, product quality, capital costs, maintenance requirements and reliability. We own a patent portfolio of intellectual property developed by a focused research and process technology development group. We also evaluate and access third-party technology for our Olefins businesses. After acquiring a technology, we devote considerable effort to effectively employ the technology and further its development, with a view towards continuous improvement of our competitive position.
We license technology from a number of third-party providers as follows:
Kellogg Brown and Root technology and Chicago Bridge and Iron Lummus technology for our ethylene plants at Lake Charles;
Mobil/Badger technology for our styrene plant at Lake Charles;
Badger EBMax technology for our styrene plant at Lake Charles;
INEOS technology to produce LLDPE and HDPE at Lake Charles and Longview;
Aspen Technology technology for our advanced process control software;
Asahi Chemical membrane technology for our chlor-alkali plant at Calvert City; and
Chlorine Engineers membrane technology for our chlor-alkali plant at Geismar.
With the exception of Aspen Technology, Badger EBMax and Chlorine Engineers, all of the other licenses are perpetual and have been paid in full.
We have also selectively granted licenses to our patented Energx® technology for LLDPE production and for proprietary LDPE reactor mixing technology.
Segment and Geographic Information
Information regarding sales, income (loss) from operations and assets attributable to each of our industry segments, Olefins and Vinyls, and geographical information is presented in Note 19 to our consolidated financial statements included in Item 8 of this Form 10-K.
Available Information
Our Web site address is www.westlake.com. We make our Web site content available for information purposes only. It should not be relied upon for investment purposes, nor is it incorporated by reference in this Form 10-K. We make available on this Web site under "Investor Relations/SEC Filings," free of charge, our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, amendments to those reports and proxy statements as soon as reasonably practicable after we electronically file those materials with, or furnish those materials to, the SEC. The SEC also maintains a Web site at www.sec.gov that contains reports, proxy statements and other information regarding SEC registrants, including us.
We intend to satisfy the requirement under Item 5.05 of Form 8-K to disclose any amendments to our Code of Ethics and any waiver from a provision of our Code of Ethics by posting such information on our Web site at www.westlake.com at "Investor Relations/Corporate Governance."
 
Item 1A. Risk Factors
Cyclicality in the petrochemical industry has in the past, and may in the future, result in reduced operating margins or operating losses.
Our historical operating results reflect the cyclical and volatile nature of the petrochemical industry. The industry is mature and capital intensive. Margins in this industry are sensitive to supply and demand balances both domestically and internationally, which historically have been cyclical. The cycles are generally characterized by periods of tight supply, leading

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to high operating rates and margins, followed by periods of oversupply primarily resulting from significant capacity additions, leading to reduced operating rates and lower margins.
Moreover, profitability in the petrochemical industry is affected by the worldwide level of demand along with vigorous price competition which may intensify due to, among other things, new domestic and foreign industry capacity. In general, weak economic conditions either in the United States or in the world tend to reduce demand and put pressure on margins. It is not possible to predict accurately the supply and demand balances, market conditions and other factors that will affect industry operating margins in the future.
Some olefins industry consultants predict that a significant increase in worldwide ethylene and ethylene derivative capacity may occur within the next decade, with the largest increases in Asia and North America. As a result, our Olefins segment operating margins may be negatively impacted.
PVC industry operating rates have dropped from peak levels in the second half of 2006 to much lower levels in 2012. In addition, weakness in the U.S. construction markets, which began in the third quarter of 2006, and the subsequent budgetary constraints in municipal spending, have contributed to lower domestic demand for our vinyls products. Looking forward, our Vinyls segment operating rates and margins may continue to be negatively impacted by the slow recovery of U.S. construction markets.
We sell commodity products in highly competitive markets and face significant competition and price pressure.
We sell our products in highly competitive markets. Due to the commodity nature of many of our products, competition in these markets is based primarily on price and to a lesser extent on performance, product quality, product deliverability and customer service. As a result, we generally are not able to protect our market position for these products by product differentiation and may not be able to pass on cost increases to our customers. Accordingly, increases in raw material and other costs may not necessarily correlate with changes in prices for these products, either in the direction of the price change or in magnitude. Specifically, timing differences in pricing between raw material prices, which may change daily, and contract product prices, which in many cases are negotiated only monthly or less often, sometimes with an additional lag in effective dates for increases, have had and may continue to have a negative effect on profitability. Significant volatility in raw material costs tends to place pressure on product margins as sales price increases could lag behind raw material cost increases. Conversely, when raw material costs decrease, customers could seek relief in the form of lower sales prices.
Volatility in costs of raw materials and energy may result in increased operating expenses and adversely affect our results of operations and cash flow.
Significant variations in the costs and availability of raw materials and energy may negatively affect our results of operations. These costs have risen significantly in the past due primarily to oil and natural gas cost increases. We purchase significant amounts of ethane and propane feedstock, natural gas, ethylene, chlorine and salt to produce several basic chemicals. We also purchase significant amounts of electricity to supply the energy required in our production processes. The cost of these raw materials and energy, in the aggregate, represents a substantial portion of our operating expenses. The prices of raw materials and energy generally follow price trends of, and vary with market conditions for, crude oil and natural gas, which are highly volatile and cyclical. Our results of operations have been and could in the future be significantly affected by increases in these costs. Price increases increase our working capital needs and, accordingly, can adversely affect our liquidity and cash flow. In addition, because we utilize the first-in, first-out ("FIFO") method of inventory accounting, during periods of falling raw material prices and declining sales prices, our results of operations for a particular reporting period could be negatively impacted as the lower sales prices would be reflected in operating income more quickly than the corresponding drop in feedstock costs. We use derivative instruments in an attempt to reduce price volatility risk on some feedstock commodities. In the future, we may decide not to hedge any of our raw material costs or any hedges we enter into may not have successful results. Also, our hedging activities involve credit risk associated with our hedging counterparties, and a deterioration in the financial markets could adversely affect our hedging counterparties and their abilities to fulfill their obligations to us.
In addition, higher natural gas prices could adversely affect the ability of many domestic chemical producers to compete internationally since U.S. producers are disproportionately reliant on natural gas and natural gas liquids as an energy source and as a raw material. In addition to the impact that this has on our exports, reduced competitiveness of U.S. producers also has in the past increased the availability of chemicals in North America, as U.S. production that would otherwise have been sold overseas was instead offered for sale domestically, resulting in excess supply and lower prices in North America. We could also face the threat of imported products from countries that have a cost advantage.

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External factors beyond our control can cause fluctuations in demand for our products and in our prices and margins, which may negatively affect our results of operations and cash flow.
External factors beyond our control can cause volatility in raw material prices, demand for our products, product prices and volumes and deterioration in operating margins. These factors can also magnify the impact of economic cycles on our business and results of operations. Examples of external factors include:
general economic conditions;
the level of business activity in the industries that use our products;
competitor action;
technological innovations;
currency fluctuations;
international events and circumstances;
war, terrorism and civil unrest;
governmental regulation in the United States and abroad;
severe weather and natural disasters; and
credit worthiness of customers and vendors.
We believe that events in the Middle East have had a particular influence on demand, prices and margins in the past and may continue to do so in the future. In addition, a number of our products are highly dependent on durable goods markets, such as housing and construction, which are themselves particularly cyclical. The significant weakening of the U.S. residential housing market since 2006 has had an adverse effect on demand and margins for our products. If the global economy worsens in general, or the U.S. residential housing market worsens in particular, demand for our products and our income and cash flow could be adversely affected to an even greater degree.
We may reduce production at or idle a facility for an extended period of time or exit a business because of high raw material prices, an oversupply of a particular product and/or a lack of demand for that particular product, which makes production uneconomical. Since 2007 we have closed a PVC window and door components plant and three PVC pipe plants. Temporary outages sometimes last for several quarters or, in certain cases, longer and cause us to incur costs, including the expenses of maintaining and restarting these facilities. Factors such as increases in raw material costs or lower demand in the future may cause us to further reduce operating rates, idle facilities or exit uncompetitive businesses.
Hostilities in the Middle East or elsewhere and/or the occurrence or threat of occurrence of terrorist attacks could adversely affect the economies of the United States and other developed countries. A lower level of economic activity could result in a decline in demand for our products, which could adversely affect our net sales and margins and limit our future growth prospects. Volatility in prices for crude oil and natural gas could also result in increased feedstock costs. In addition, these risks could cause increased instability in the financial and insurance markets and could adversely affect our ability to access capital and to obtain insurance coverage that we consider adequate or is otherwise required by our contracts with third parties.
A deterioration in global economic conditions may have a negative impact on our business and financial condition.
A deterioration in global economic conditions may have a negative impact on our business and our financial condition. Our ability to access the capital markets may be severely restricted at a time when we would like, or need, to access such markets, which could have an impact on our flexibility to react to changing economic and business conditions. In addition, the availability of additional financing at cost effective interest rates cannot be assured. A deterioration in global economic conditions could have an impact on the lenders under our revolving credit facility or on our customers and suppliers, causing them to fail to meet their obligations to us. Additionally, a deterioration in global economic conditions could result in reduced demand for our products, which would have a negative impact on our revenues and profits. Further, reduced levels of accounts receivables and inventory may affect our credit facility borrowing base. Our credit facility allows us to borrow up to (1) 85% of the net amount of eligible accounts receivable, plus (2) the lesser of (a) 70% of the value of the lower of cost or market of eligible inventory, or (b) 85% of the appraised net orderly liquidation value of all eligible inventory, plus (3) 100% of cash held in an account with the agent under the credit facility and subject to a control agreement with the agent, minus (4) such reserves as the agent may establish.

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Our inability to compete successfully may reduce our operating profits.
The petrochemical industry is highly competitive. Historically, there have been a number of mergers, acquisitions, spin-offs and joint ventures in the industry. This restructuring activity has resulted in fewer but more competitive producers, many of which are larger than we are and have greater financial resources than we do. Among our competitors are some of the world's largest chemical companies and chemical industry joint ventures. Competition within the petrochemical industry and in the manufacturing of building products is affected by a variety of factors, including:
product price;
technical support and customer service;
quality;
reliability of raw material and utility supply;
availability of potential substitute materials; and
product performance.
Changes in the competitive environment could have a material adverse effect on our business and our operations. These changes could include:
the emergence of new domestic and international competitors;
the rate of capacity additions by competitors;
changes in customer base due to mergers;
the intensification of price competition in our markets;
the introduction of new or substitute products by competitors;
the technological innovations of competitors; and
the adoption of new environmental laws and regulatory requirements.
Our production facilities process some volatile and hazardous materials that subject us to operating risks that could adversely affect our operating results.
We have four major manufacturing facilities: our olefins complex in Lake Charles, our polyethylene complex in Longview, our vinyls complex in Calvert City and our vinyls facility in Geismar. Our operations are subject to the usual hazards associated with commodity chemical and plastics manufacturing and the related use, storage, transportation and disposal of feedstocks, products and wastes, including:
pipeline leaks and ruptures;
explosions;
fires;
severe weather and natural disasters;
mechanical failure;
unscheduled downtime;
labor difficulties;
transportation interruptions;
chemical spills;
discharges or releases of toxic or hazardous substances or gases;
storage tank leaks;
other environmental risks; and
terrorist attacks.
According to some experts, global climate change could result in heightened hurricane activity in the Gulf of Mexico. If this materializes, severe weather and natural disaster hazards could pose an even greater risk for our facilities, particularly those in Louisiana.
All these hazards can cause personal injury and loss of life, catastrophic damage to or destruction of property and equipment and environmental damage, and may result in a suspension of operations and the imposition of civil or criminal

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penalties. We could become subject to environmental claims brought by governmental entities or third parties. A loss or shutdown over an extended period of operations at any one of our four major operating facilities would have a material adverse effect on us. We maintain property, business interruption and casualty insurance that we believe is in accordance with customary industry practices, but we cannot be fully insured against all potential hazards incident to our business, including losses resulting from war risks or terrorist acts. As a result of market conditions, premiums and deductibles for certain insurance policies can increase substantially and, in some instances, certain insurance may become unavailable or available only for reduced amounts of coverage. If we were to incur a significant liability for which we were not fully insured, it could have a material adverse effect on our financial position.
Our operations and assets are subject to extensive environmental, health and safety laws and regulations.
We use large quantities of hazardous substances and generate large quantities of hazardous wastes in our manufacturing operations. Due to the large quantities of hazardous substances and wastes, our industry is highly regulated and monitored by various environmental regulatory authorities. As such, we are subject to extensive federal, state and local laws and regulations pertaining to pollution and protection of the environment, health and safety, which govern, among other things, emissions to the air, discharges onto land or waters, the maintenance of safe conditions in the workplace, the remediation of contaminated sites, and the generation, handling, storage, transportation, treatment and disposal of waste materials. Some of these laws and regulations are subject to varying and conflicting interpretations. Many of these laws and regulations provide for substantial fines and potential criminal sanctions for violations and require the installation of costly pollution control equipment or operational changes to limit pollution emissions and/or reduce the likelihood or impact of hazardous substance releases, whether permitted or not. For example, all four of our petrochemical facilities, in Lake Charles, Longview, Calvert City and Geismar, may require improvements to comply with certain changes in process safety management requirements.
On April 17, 2012, the EPA promulgated MACT standards for major sources and generally available control technology ("GACT") standards for area sources of PVC production. The rule sets emission limits and work practice standards for total organic air toxics and for three specific air toxics: vinyl chloride, chlorinated di-benzo dioxins and furans ("CD/DF"), and hydrogen chloride and includes requirements to demonstrate initial and continuous compliance with the emission standards. In response to four petitions for reconsideration, the EPA initiated reconsideration of the PVC MACT and GACT rules in December 2012 and has announced that it expects to publish a Notice of Proposed Rulemaking in November 2013. We are currently evaluating the effect these new standards could have on our business. This rule or other new or proposed rules may result in an increase in regulations, which could increase our costs or reduce our production, which could have a material adverse effect on our business, financial condition, operating results or cash flow. In addition, we cannot accurately predict future developments, such as increasingly strict environmental and safety laws or regulations, and inspection and enforcement policies, as well as resulting higher compliance costs, which might affect the handling, manufacture, use, emission, disposal or remediation of products, other materials or hazardous and non-hazardous waste, and we cannot predict with certainty the extent of our future liabilities and costs under environmental, health and safety laws and regulations. These liabilities and costs may be material.
Legislation to regulate emissions of greenhouse gases ("GHGs") has been introduced in the U.S. Congress, and there has been a wide-ranging policy debate, both in the U.S. and internationally, regarding the impact of these gases and possible means for their regulation. Some of the proposals would require industries to meet stringent new standards that would require substantial reductions in carbon emissions. Those reductions could be costly and difficult to implement. In addition, efforts have been made and continue to be made in the international community toward the adoption of international treaties or protocols that would address global climate change issues, such as the United Nations Climate Change Conference in Doha in 2012. In the U.S., the EPA has adopted rules requiring the reporting of GHG emissions from specified large GHG emission sources, on an annual basis. Further, following a finding by the EPA that certain GHGs represent an endangerment to human health, the EPA finalized a rule to address permitting of GHG emissions from stationary sources under the Clean Air Act's New Source Review Prevention of Significant Deterioration ("PSD") and Title V programs. This final rule "tailors" the PSD and Title V programs to apply to certain stationary sources of GHG emissions in a multi-step process, with the largest sources first subject to permitting. Facilities required to obtain PSD permits for their GHG emissions also will be required to reduce those emissions according to "best available control technology" standards for GHGs that will be established by the states or, in some instances, by the EPA on a case-by-case basis.
Legislation or regulation by the EPA, and any international agreements to which the United States may become a party, that control or limit GHG emissions or otherwise seek to address climate change could adversely affect our energy supply and costs, the costs of raw materials derived from fossil fuels, our general costs of production and the demand for our products. The cost of complying with any new law, regulation or treaty will depend on the details of the particular program.
We also may face liability for alleged personal injury or property damage due to exposure to chemicals or other hazardous substances at our facilities or to chemicals that we otherwise manufacture, handle or own. Although these types of

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claims have not historically had a material impact on our operations, a significant increase in the success of these types of claims could have a material adverse effect on our business, financial condition, operating results or cash flow.
Environmental laws may have a significant effect on the nature and scope of, and responsibility for, cleanup of contamination at our current and former operating facilities, the costs of transportation and storage of raw materials and finished products, the costs of reducing emissions and the costs of the storage and disposal of wastewater. In addition, the federal CERCLA and similar state laws impose joint and several liability for the costs of remedial investigations and actions on the entities that generated waste, arranged for disposal of the wastes, transported to or selected the disposal sites and the past and present owners and operators of such sites. All such potentially responsible parties (or any one of them, including us) may be required to bear all of such costs regardless of fault, legality of the original disposal or ownership of the disposal site. In addition, CERCLA and similar state laws could impose liability for damages to natural resources caused by contamination.
Although we seek to take preventive action, our operations are inherently subject to accidental spills, discharges or other releases of hazardous substances that may make us liable to governmental entities or private parties. This may involve contamination associated with our current and former facilities, facilities to which we sent wastes or by-products for treatment or disposal and other contamination. Accidental discharges may occur in the future, future action may be taken in connection with past discharges, governmental agencies may assess damages or penalties against us in connection with any past or future contamination, or third parties may assert claims against us for damages allegedly arising out of any past or future contamination. In addition, we may be liable for existing contamination related to certain of our facilities for which, in some cases, we believe third parties are liable in the event such third parties fail to perform their obligations. For further discussion of such existing contamination, see Item 1, "Business—Environmental and Other Regulation."
Expansion and construction projects are subject to risks, including delays and cost overruns, which could have an adverse impact on our financial condition and results of operations.
We have announced expansion and/or construction plans for our Lake Charles, Geismar and Calvert City complexes. Expansion and construction projects may be subject to delays or cost overruns, including delays or cost overruns resulting from any one or more of the following:
unexpectedly long delivery times for, or shortages of, key equipment, parts or materials;
shortages of skilled labor and other personnel necessary to perform the work;
construction delays and performance issues;
failures or delays of third-party equipment vendors or service providers;
unforeseen increases in the cost of equipment, labor and raw materials;
work stoppages and other labor disputes;
unanticipated actual or purported change orders;
disputes with contractors and suppliers;
design and engineering problems;
latent damages or deterioration to equipment and machinery in excess of engineering estimates and assumptions;
financial or other difficulties of our contractors and suppliers;
interference from adverse weather conditions; and
difficulties in obtaining necessary permits or in meeting permit conditions.
Significant cost overruns or delays could materially affect our financial condition and results of operations. Additionally, capital expenditures for these projects could materially exceed our planned capital expenditures.
Our level of debt could adversely affect our ability to operate our business.
As of December 31, 2012, we had total outstanding debt of $763.8 million, and our debt represented approximately 29% of our total capitalization. Our annual interest expense for 2012 was $43.0 million. Our level of debt and the limitations imposed on us by our existing or future debt agreements could have significant consequences on our business and future prospects, including the following:
a portion of our cash flow from operations will be dedicated to the payment of interest and principal on our debt and will not be available for other purposes, including the payment of dividends;
we may not be able to obtain necessary financing in the future for working capital, capital expenditures, acquisitions, debt service requirements or other purposes;

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our less leveraged competitors could have a competitive advantage because they have greater flexibility to utilize their cash flow to improve their operations;
we may be exposed to risks inherent in interest rate fluctuations because some of our borrowings are at variable rates of interest, which would result in higher interest expense in the event of increases in interest rates;
we could be vulnerable in the event of a downturn in our business that would leave us less able to take advantage of significant business opportunities and to react to changes in our business and in market or industry conditions; and
should we pursue additional expansions of existing assets or acquisition of third party assets, we may not be able to obtain additional liquidity at cost effective interest rates.
To service our indebtedness, we will require a significant amount of cash. Our ability to generate cash depends on many factors beyond our control.
Our ability to make payments on and to refinance our indebtedness and to fund planned capital expenditures and pay cash dividends will depend on our ability to generate cash in the future. This is subject to general economic, financial, competitive, legislative, regulatory and other factors that are beyond our control.
Our business may not generate sufficient cash flow from operations, currently anticipated cost savings and operating improvements may not be realized on schedule and future borrowings may not be available to us under our credit facility in an amount sufficient to enable us to pay our indebtedness or to fund our other liquidity needs. We may need to refinance all or a portion of our indebtedness on or before maturity. In addition, we may not be able to refinance any of our indebtedness, including our credit facility and our senior notes, on commercially reasonable terms or at all.
Our credit facility and the indenture governing our senior notes impose significant operating and financial restrictions, which may prevent us from capitalizing on business opportunities and taking some actions.
Our credit facility and the indenture governing our senior notes impose significant operating and financial restrictions on us. These restrictions limit our ability to:
pay dividends on, redeem or repurchase our capital stock;
make investments and other restricted payments;
incur additional indebtedness or issue preferred stock;
create liens;
permit dividend or other payment restrictions on our restricted subsidiaries;
sell all or substantially all of our assets or consolidate or merge with or into other companies;
engage in transactions with affiliates; and
engage in sale-leaseback transactions.
These limitations are subject to a number of important qualifications and exceptions. However, the effectiveness of many of these restrictions in the indenture governing our senior notes is currently suspended under the indenture because our senior notes are currently rated investment grade by at least two nationally recognized credit rating agencies.
Our credit facility also requires us to maintain a minimum fixed charge coverage ratio or maintain a specified amount of availability under the credit facility to avoid certain restrictions. These covenants may adversely affect our ability to finance future business opportunities. A breach of any of these covenants could result in a default in respect of the related debt. If a default occurred, the relevant lenders could elect to declare the debt, together with accrued interest and other fees, to be immediately due and payable and proceed against any collateral securing that debt. In addition, any acceleration of debt under our credit facility will constitute a default under some of our other debt, including the indenture governing our senior notes.
Regulations concerning the transportation of hazardous chemicals and the security of chemical manufacturing facilities could result in higher operating costs.
Targets such as chemical manufacturing facilities may be at greater risk of terrorist attacks than other targets in the United States. As a result, the chemical industry responded to the issues surrounding the terrorist attacks of September 11, 2001 by implementing initiatives relating to the security of chemicals industry facilities and the transportation of hazardous chemicals in the United States. Simultaneously, local, state and federal governments put into effect a regulatory process that led to new regulations impacting the security of chemical plant locations and the transportation of hazardous chemicals. Our business or our customers' businesses could be adversely affected because of the cost of complying with these regulations.

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We may pursue acquisitions, dispositions and joint ventures and other transactions that may impact our results of operations and financial condition.
We seek opportunities to maximize efficiency and create stockholder value through various transactions. These transactions may include various domestic and international business combinations, purchases or sales of assets or contractual arrangements or joint ventures that are intended to result in the realization of synergies, the creation of efficiencies or the generation of cash to reduce debt. To the extent permitted under our credit facility, the indenture governing our senior notes and other debt agreements, some of these transactions may be financed by additional borrowings by us. Although these transactions are expected to yield longer-term benefits if the expected efficiencies and synergies of the transactions are realized, they could adversely affect our results of operations in the short term because of the costs associated with such transactions. Other transactions may advance future cash flows from some of our businesses, thereby yielding increased short-term liquidity, but consequently resulting in lower cash flows from these operations over the longer term. These transactions may not yield the business benefits, synergies or financial benefits anticipated by management.
We may have difficulties integrating the operations of acquired businesses.
If we are unable to integrate or to successfully manage businesses that we have acquired or that we may acquire in the future, our business, financial condition and results of operations could be adversely affected. We may not be able to realize the operating efficiencies, synergies, cost savings or other benefits expected from the acquisitions for a number of reasons, including the following:
we may fail to integrate the businesses we acquire into a cohesive, efficient enterprise;
our resources, including management resources, are limited and may be strained if we engage in a significant number of acquisitions, and acquisitions may divert our management's attention from initiating or carrying out programs to save costs or enhance revenues; and
our failure to retain key employees and contracts of the businesses we acquire.
The trading price of our common stock may negatively impact us.
Volatility in the capital and credit markets may cause downward pressure on stock prices and credit availability. The market value of our common stock is a factor in determining whether our goodwill is impaired. If the market value of our common stock declines significantly, it may result in an impairment of goodwill. A decline in the market value of our common stock could also negatively impact us in other ways, including making it more difficult for us to raise any equity capital.
Failure to adequately protect critical data and technology systems could materially affect our operations.
Information technology system failures, network disruptions and breaches of data security could disrupt our operations by causing delays or cancellation of customer orders, impede the manufacture or shipment of products or cause standard business processes to become ineffective, resulting in the unintentional disclosure of information or damage to our reputation. While we have taken steps to address these concerns by implementing network security and internal control measures, there can be no assurance that a system failure, network disruption or data security breach will not have a material adverse effect on our business, financial condition, operating results or cash flow.
Our property insurance has only partial coverage for acts of terrorism and, in the event of terrorist attack, we could lose net sales and our facilities.
As a result of the terrorist attacks of September 11, 2001 and other events, our insurance carriers created certain exclusions for losses from terrorism from our property insurance policies. While separate terrorism insurance coverage is available, premiums for full coverage are very expensive, especially for chemical facilities, and the policies are subject to high deductibles. Available terrorism coverage typically excludes coverage for losses from acts of war and from acts of foreign governments as well as nuclear, biological and chemical attacks. We have determined that it is not economically prudent to obtain full terrorism insurance, especially given the significant risks that are not covered by such insurance. Where feasible we have secured some limited terrorism insurance coverage on our property where insurers have included it in their overall programs. In the event of a terrorist attack impacting one or more of our facilities, we could lose the net sales from the facilities and the facilities themselves, and could become liable for any contamination or for personal or property damage due to exposure to hazardous materials caused by any catastrophic release that may result from a terrorist attack.

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We will be controlled by our principal stockholder and its affiliates as long as they own a majority of our common stock, and our other stockholders will be unable to affect the outcome of stockholder voting during that time. Our interests may conflict with those of the principal stockholder and its affiliates, and we may not be able to resolve these conflicts on terms possible in arms-length transactions.
As long as TTWF LP (the "principal stockholder") and its affiliates (the "principal stockholder affiliates") own a majority of our outstanding common stock, they will be able to exert significant control over us, and our other stockholders, by themselves, will not be able to affect the outcome of any stockholder vote. As a result, the principal stockholder, subject to any fiduciary duty owed to our minority stockholders under Delaware law, will be able to control all matters affecting us (some of which may present conflicts of interest), including:
the composition of our board of directors and, through the board, any determination with respect to our business direction and policies, including the appointment and removal of officers and the determination of compensation;
any determinations with respect to mergers or other business combinations or the acquisition or disposition of assets;
our financing decisions, capital raising activities and the payment of dividends; and
amendments to our amended and restated certificate of incorporation or amended and restated bylaws.
The principal stockholder will be permitted to transfer a controlling interest in us without being required to offer our other stockholders the ability to participate or realize a premium for their shares of common stock. A sale of a controlling interest to a third party may adversely affect the market price of our common stock and our business and results of operations because the change in control may result in a change of management decisions and business policy. Because we have elected not to be subject to Section 203 of the General Corporation Law of the State of Delaware, the principal stockholder may find it easier to sell its controlling interest to a third party than if we had not so elected.
In addition to any conflicts of interest that arise in the foregoing areas, our interests may conflict with those of the principal stockholder affiliates in a number of other areas, including:
business opportunities that may be presented to the principal stockholder affiliates and to our officers and directors associated with the principal stockholder affiliates, and competition between the principal stockholder affiliates and us within the same lines of business;
the solicitation and hiring of employees from each other; and
agreements with the principal stockholder affiliates relating to corporate services that may be material to our business.
We may not be able to resolve any potential conflicts with the principal stockholder affiliates, and even if we do, the resolution may be less favorable than if we were dealing with an unaffiliated party, particularly if the conflicts are resolved while we are controlled by the principal stockholder affiliates. Our amended and restated certificate of incorporation provides that the principal stockholder affiliates have no duty to refrain from engaging in activities or lines of business similar to ours and that the principal stockholder affiliates will not be liable to us or our stockholders for failing to present specified corporate opportunities to us.
Cautionary Statements about Forward Looking Statements
The Private Securities Litigation Reform Act of 1995 provides safe harbor provisions for forward-looking information. Certain of the statements contained in this Form 10-K are forward-looking statements. All statements, other than statements of historical facts, included in this Form 10-K that address activities, events or developments that we expect, project, believe or anticipate will or may occur in the future are forward-looking statements. Forward-looking statements can be identified by the use of words such as "believes," "intends," "may," "should," "could," "anticipates," "expected" or comparable terminology, or by discussions of strategies or trends. Although we believe that the expectations reflected in such forward-looking statements are reasonable, we cannot give any assurances that these expectations will prove to be correct. Forward-looking statements relate to matters such as:
future operating rates, margins, cash flow and demand for our products;
industry market outlook;
production capacities;
our ability to borrow additional funds under our credit facility;
our ability to meet our liquidity needs;
our intended quarterly dividends;

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future capacity additions and expansions in the industry;
timing, funding and results of the expansion and feedstock conversion programs at our Lake Charles and Calvert City complexes;
timing, funding and results of the planned new chlor-alkali plant in Geismar;
health of our customer base;
pension plan funding requirements and investment policies;
compliance with present and future environmental regulations and costs associated with environmentally related penalties, capital expenditures, remedial actions and proceedings, including any new laws, regulations or treaties that may come into force to limit or control carbon dioxide and other GHG emissions or to address other issues of climate change;
the utilization of net operating loss carryforwards;
effects of pending legal proceedings; and
timing of and amount of capital expenditures.
We have based these statements on assumptions and analyses in light of our experience and perception of historical trends, current conditions, expected future developments and other factors we believe were appropriate in the circumstances when the statements were made. Forward-looking statements by their nature involve substantial risks and uncertainties that could significantly impact expected results, and actual future results could differ materially from those described in such statements. While it is not possible to identify all factors, we continue to face many risks and uncertainties. Among the factors that could cause actual future results to differ materially are the risks and uncertainties discussed under "Risk Factors" and those described from time to time in our other filings with the SEC including, but not limited to, the following:
general economic and business conditions;
the cyclical nature of the chemical industry;
the availability, cost and volatility of raw materials and energy;
uncertainties associated with the United States and worldwide economies, including those due to political tensions in the Middle East and elsewhere;
current and potential governmental regulatory actions in the United States and regulatory actions and political unrest in other countries;
industry production capacity and operating rates;
the supply/demand balance for our products;
competitive products and pricing pressures;
instability in the credit and financial markets;
access to capital markets;
terrorist acts;
operating interruptions (including leaks, explosions, fires, weather-related incidents, mechanical failure, unscheduled downtime, labor difficulties, transportation interruptions, spills and releases and other environmental risks);
changes in laws or regulations;
technological developments;
our ability to implement our business strategies; and
creditworthiness of our customers.
Many of such factors are beyond our ability to control or predict. Any of the factors, or a combination of these factors, could materially affect our future results of operations and the ultimate accuracy of the forward-looking statements. These forward-looking statements are not guarantees of our future performance, and our actual results and future developments may differ materially from those projected in the forward-looking statements. Management cautions against putting undue reliance on forward-looking statements or projecting any future results based on such statements or present or prior earnings levels. Every forward-looking statement speaks only as of the date of the particular statement, and we undertake no obligation to publicly update or revise any forward-looking statements.
 

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Item 1B. Unresolved Staff Comments
None.
 
Item 2. Properties
Our manufacturing facilities and principal products are set forth below. Except as noted, we own each of these facilities.
    Location
 
    Principal Products
Lake Charles, Louisiana
 
Ethylene, polyethylene, styrene
Longview, Texas (1)
 
Polyethylene, polyethylene wax
Calvert City, Kentucky (2)
 
PVC, VCM, chlorine, caustic soda, ethylene, PVC pipe
Geismar, Louisiana
 
PVC, VCM and EDC
Booneville, Mississippi
 
PVC pipe
Greensboro, Georgia
 
PVC pipe
Janesville, Wisconsin
 
PVC pipe
Leola, Pennsylvania
 
PVC pipe
Litchfield, Illinois
 
PVC pipe
Wichita Falls, Texas
 
PVC pipe
Yucca, Arizona
 
PVC pipe
Evansville, Indiana
 
Fence and deck components
Calgary, Alberta, Canada (3)
 
Window and door components

______________________________
(1)
We lease the land on which our Longview facility is located.
(2)
We lease a portion of our Calvert City facility.
(3)
We lease our Calgary facility.
Olefins
Our Lake Charles complex consists of three tracts on over 1,300 acres in Lake Charles, each within two miles of one another. The complex includes two ethylene plants, two polyethylene plants and a styrene monomer plant. The combined capacity of our two ethylene plants is approximately 2.5 billion pounds per year. The capacity of our two polyethylene plants is approximately 1.4 billion pounds per year and the capacity of our styrene plant is approximately 570 million pounds per year. Our newest polyethylene plant has two production units that use gas phase technology to manufacture both LLDPE and HDPE. In January 2013, we commenced the expansion of the Petro 2 ethylene unit at our Lake Charles complex as part of our previously announced expansion program to increase the ethane-based ethylene capacity of both of the ethylene units at our Lake Charles complex. The Petro 2 ethylene unit expansion is expected to be completed in the first quarter of 2013 in conjunction with a planned maintenance turnaround and is expected to increase ethane-based ethylene capacity by approximately 230 - 240 million pounds annually in support of our ethylene integration strategy. The Petro 2 ethylene unit is expected to be down for approximately 60 days for the planned maintenance turnaround. The additional capacity from this expansion is expected to provide ethylene for existing internal uses. In addition, we plan to expand the ethane-based ethylene capacity of the second ethylene unit at our Lake Charles complex, but we are still evaluating plans for this expansion.
Our Lake Charles complex includes a marine terminal that provides for worldwide shipping capabilities. The complex also is located near rail transportation facilities, which allows for efficient delivery of raw materials and prompt shipment of our products to customers. In addition, the complex is connected by pipeline systems to our ethylene feedstock sources in both Texas and Louisiana. Within the complex, our ethylene plants are connected by pipeline systems to our polyethylene and styrene plants.
Our Longview facility consists of three polyethylene plants, a specialty polyethylene wax plant, and a 200-mile ethylene pipeline that runs from Mont Belvieu to our Longview facility. The plants are located inside a large Eastman Chemical Company ("Eastman") facility where Eastman produces a number of other chemical products. We can access ethylene to support our polyethylene operations either by purchasing ethylene from Eastman at the site or by transporting ethylene from our Lake Charles plant into the Gulf Coast grid and by transporting ethylene through our ethylene pipeline into our Longview facility. The technologies we use to produce polyethylene at Longview are similar to the technologies that we employ at Lake Charles. The Longview facility has a total capacity of 1.1 billion pounds per year.

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Vinyls
Our Calvert City complex is situated on 550 acres on the Tennessee River in Kentucky and includes an ethylene plant, a chlor-alkali plant, a VCM plant, a PVC plant and a large diameter PVC pipe plant. The capacity of our Calvert City ethylene plant is 450 million pounds per year and the capacity of our chlor-alkali plant is 550 million pounds of chlorine and 605 million pounds of caustic soda per year. Our chlorine plant utilizes efficient, state-of-the-art membrane technology. Our VCM plant has a capacity of 1.3 billion pounds per year and our Calvert City PVC plant has a capacity of 1.1 billion pounds per year. Our large diameter PVC pipe facility has a capacity of approximately 77 million pounds per year. In October 2012, we announced a project for the conversion of the feedstock for our Calvert City ethylene plant from propane to ethane and the planned increase in ethylene capacity from 450 million pounds annually to 630 million pounds annually. This expansion and feedstock conversion project is expected to enhance our vinyl chain integration and leverage low cost ethane being developed in the Marcellus shale area. The ethylene expansion and feedstock conversion project is targeted for start-up in the second quarter of 2014. In addition, we announced an expansion of the existing PVC plant in Calvert City, which should allow us to take advantage of the increased ethylene production at our Calvert City complex and to provide additional PVC resin to meet the growing demands of our global customers. The expansion of the Calvert City PVC plant is expected to increase PVC resin capacity by approximately 200 million pounds annually and is targeted for completion by late 2014.
Our vinyls facility in Geismar is situated on 184 acres on the Mississippi River. The site includes a PVC plant with a capacity of 600 million pounds per year and a VCM plant with a capacity of 550 million pounds per year with related EDC capacity. In August 2010, we announced that we intend to proceed with the previously announced construction of a new chlor-alkali plant to be located at our vinyls manufacturing complex in Geismar. The new chlor-alkali unit is designed to produce up to 350,000 ECUs, or 700 million pounds, annually upon completion, bringing our total capacity to 625,000 ECUs, or 1.3 billion pounds, per year. The new plant will improve the vertical integration of our vinyls business from chlorine downstream into VCM and PVC, and increase caustic soda sales. The project is currently targeted for start-up in the second half of 2013.
As of February 15, 2013, we operated 10 building products plants, consisting of eight PVC pipe plants and two profiles plants producing PVC fence, decking, windows and door profiles. The majority of our plants are strategically located near our Calvert City complex and serve customers throughout the middle United States. The combined capacity of our building product plants is 1.1 billion pounds per year.
We believe our current facilities and announced expansions are adequate to meet the requirements of our present and foreseeable future operations.
Headquarters
Our principal executive offices are located in Houston, Texas. Our office space is leased, at market rates, from an affiliate under a lease that expires on December 31, 2014. See Note 16 to the audited consolidated financial statements appearing elsewhere in this Form 10-K and "Certain Relationships and Related Transactions" in our proxy statement to be filed with the SEC within 120 days of December 31, 2012 pursuant to Regulation 14A with respect to our 2013 annual meeting of stockholders (the "Proxy Statement").
 
Item 3. Legal Proceedings
In addition to the matters described under Item 1, "Business—Environmental and Other Regulation," we are involved in various routine legal proceedings incidental to the conduct of our business. We do not believe that any of these routine legal proceedings will have a material adverse effect on our financial condition, results of operations or cash flows.
 
Item 4. Mine Safety Disclosure
Not Applicable.
 


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Executive Officers of the Registrant
James Chao (age 65). Mr. Chao has been our Chairman of the Board since July 2004 and became a director in June 2003. He previously served as our Vice Chairman of the Board since May 1996. Mr. Chao also has responsibility for the oversight of our Vinyls business. Mr. Chao has over 40 years of global experience in the chemical industry. In November 2010, Mr. Chao resigned as the Executive Chairman of Titan Chemicals Corp. Bhd., a position he held since June 2003. Prior to June 2003, he served as Titan's Managing Director. He has served as a Special Assistant to the Chairman of China General Plastics Group and worked in various financial, managerial and technical positions at Mattel Incorporated, Developmental Bank of Singapore, Singapore Gulf Plastics Pte. Ltd. and Gulf Oil Corporation. Mr. Chao, along with his brother Albert Chao, assisted their father T.T. Chao in founding Westlake Chemical Corporation. Mr. Chao received his Bachelor of Science degree from the Massachusetts Institute of Technology and an M.B.A. from Columbia University.
Albert Chao (age 63). Mr. Chao has been our President since May 1996 and a director since June 2003. Mr. Chao has over 35 years of global experience in the chemical industry. In 1985, Mr. Chao assisted his father T.T. Chao and his brother James Chao in founding Westlake Chemical Corporation, where he served as Executive Vice President until he succeeded James as President. He has held positions in the Controller's Group of Mobil Oil Corporation, in the Technical Department of Hercules Incorporated, in the Plastics Group of Gulf Oil Corporation and has served as Assistant to the Chairman of China General Plastics Group and Deputy Managing Director of a plastics fabrication business in Singapore. He was also previously a director of Titan Chemicals Corp. Bhd., a position he resigned from in November 2010. Mr. Chao received a bachelor's degree from Brandeis University and an M.B.A. from Columbia University. Mr. Chao is a trustee of Rice University.
M. Steven Bender (age 56). Mr. Bender has been our Senior Vice President and Chief Financial Officer since February 2008. In addition, Mr. Bender has served as our Treasurer since July 2011, a position he also held from February 2008 until December 2010. From February 2007 to February 2008, Mr. Bender served as our Vice President, Chief Financial Officer and Treasurer and from June 2005 to February 2007, he served as our Vice President and Treasurer. From June 2002 until June 2005, Mr. Bender served as Vice President and Treasurer of KBR, Inc., and from 1996 to 2002 he held the position of Assistant Treasurer for Halliburton Company. Prior to that, he held various financial positions within that company. Additionally, he was employed by Texas Eastern Corporation for over a decade in a variety of increasingly responsible audit, finance and treasury positions. Mr. Bender received a Bachelor of Business Administration from Texas A&M University and an M.B.A. from Southern Methodist University. Mr. Bender is also a Certified Public Accountant.
Robert F. Buesinger (age 56). Mr. Buesinger has been our Senior Vice President, Vinyls since joining us in April 2010. Prior to joining us, Mr. Buesinger served as the General Manager and President of Chevron Phillips Chemical Company L.P.'s Performance Pipe Division from February 2010 to March 2010. From June 2008 to January 2010, Mr. Buesinger held the position of General Manager in the Alpha Olefins and Poly Alpha Olefins business of Chevron Phillips Chemical Company L.P. From April 2005 to May 2008, he served as the President and Managing Director of Chevron Phillips Singapore Chemicals Pte. Ltd. and Asia Region General Manager for Chevron Phillips Chemical Company L.P. Prior to that, he held various technical and sales management positions within that company. Mr. Buesinger holds a B.S. in Chemical Engineering from Tulane University.
Donald M. Condon, Jr. (age 63). Mr. Condon has been our Senior Vice President, Corporate Business Development since June 2012. From July 2008 to May 2012, Mr. Condon served as our Senior Vice President, Olefins and Corporate Business Development and from July 2006 to July 2008, he served as our Senior Vice President, Corporate Planning and Business Development. Prior to joining us, Mr. Condon served as the Managing Director of Titan Chemicals Corp. Bhd. from July 2003 to June 2006 and President & General Manager of Conoco Energy Ventures from 1998 until July 2003. He previously was employed by Conoco and DuPont in a variety of management and executive positions. In 2010, Mr. Condon was named a non-executive director of The Manitowoc Company, Inc. He was also previously a director of Titan Chemicals Corp. Bhd., a position he resigned from in November 2010. Mr. Condon holds a B.B.A. from the University of Wisconsin.
David R. Hansen (age 62). Mr. Hansen has been our Senior Vice President, Administration, since September 1999 and served as Vice President, Human Resources from 1993 to 1999. From August 2003 until July 2004 he was also our Secretary. Prior to joining us in 1990, Mr. Hansen served as Director of Human Resources & Administration for Agrico Chemical Company and held various human resources and administrative management positions within the Williams Companies. He has 30 years of administrative management experience in the oil, gas, energy, chemicals, pipeline, plastics and computer industries. He received his Bachelor of Science degree in Social Science from the University of Utah and has completed extensive graduate work toward an M.S. in Human Resources Management.

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Jeffrey L. Taylor (age 59). Mr. Taylor has been our Senior Vice President, Polyethylene since April 2008. From January 2003 to April 2008, Mr. Taylor served as our Vice President, Polyethylene. Mr. Taylor joined us in March 2002 as Manager, Polyethylene Marketing. Mr. Taylor joined us after a 25-year career with Chevron Phillips Chemical Company where he served as the Vice President, Polyethylene, Americas from 2000 to 2001 and Marketing Manager-Polyethylene from 1999 to 2000. During his career, he has held a variety of sales, marketing, operations and general management assignments. He is a graduate of the University of Delaware with a B.S. in Business Administration and a B.A. in Mathematics.
Andrew Kenner (age 48). Mr. Kenner has been our Vice President, Manufacturing since July 2008. Prior to joining us, Mr. Kenner served as Vice President and General Manager of Valero Energy Corporation's Delaware City Refinery from September 2005 to July 2008. From August 2004 to September 2005, Mr. Kenner held the position of Vice President and General Manager of Valero's Houston Refinery and from August 2003 to August 2004, he served as Operations Director for Valero's Texas City Refinery. Mr. Kenner holds a B.S. in Aerospace Engineering from Texas A&M University and a M.S. in Chemical Engineering from the University of Texas at Austin.
George J. Mangieri (age 62). Mr. Mangieri has been our Vice President and Chief Accounting Officer since February 2007. From April 2000 to February 2007, he was Vice President and Controller. Prior to joining us, Mr. Mangieri served as Vice President and Controller of Zurn Industries, Inc. from 1998 to 2000. He previously was employed as Vice President and Controller for Imo Industries, Inc. in New Jersey, and spent over 10 years in public accounting with Ernst & Young LLP, where he served as Senior Manager. He received his Bachelor of Science degree from Monmouth College and is a Certified Public Accountant.
Lawrence E. (Skip) Teel (age 54). Mr. Teel has been our Vice President, Olefins since July 2012. Mr. Teel joined us in September 2009 as Director, Olefins and Feedstock after a 23-year career with Lyondell Chemical Company where he served as the Vice President, Refining from August 2006 to May 2008. From 2001 to 2006, Mr. Teel held the position of Director, Corporate Planning and Business Development at Lyondell Chemical Company. During his career, he has held a variety of marketing, operations and general management assignments. Mr. Teel received a B.S. in Chemical Engineering from New Mexico State University and an M.S. in Finance from the University of Houston.
Stephen Wallace (age 66). Mr. Wallace has been our Vice President and General Counsel since December 2003 and our Secretary since July 2004. He began his legal career over 25 years ago at the law firm of Baker Botts L.L.P., which he left as a partner in 1993. He subsequently held senior corporate legal positions with Transworld Oil U.S.A., Inc. (1993-1996; 2002-2003), Oman Oil Company Ltd. (1996-1997), and Enron Global Exploration & Production Inc. and its affiliates (1997-2002). Mr. Wallace holds a B.A. from Rice University and a Ph.D. from Cornell University in linguistics, and received his J.D. from the University of Houston.



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PART II

Item 5. Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities
Price Range of Common Stock
As of February 15, 2013, there were 50 holders of record of our common stock. Our common stock is listed on the New York Stock Exchange under the symbol "WLK." Set forth below are the high and low closing prices for our common stock, as reported on the New York Stock Exchange composite tape for the periods indicated and the cash dividends declared in these periods.
 
 
High
 
Low
 
Cash Dividends
Declared
Year Ended December 31, 2012
 
 
 
 
 
 
 
4th Quarter
 
$
80.09

 
$
70.00

 
$
3.9375

(1) 
3rd Quarter
 
75.51

 
52.11

 
0.1875

 
2nd Quarter
 
65.62

 
48.68

 
0.0738

 
1st Quarter
 
66.17

 
40.86

 
0.0738

 
Year Ended December 31, 2011
 
 
 
 
 
 
 
4th Quarter
 
$
43.63

 
$
32.31

 
$
0.0738

 
3rd Quarter
 
54.91

 
34.28

 
0.0738

 
2nd Quarter
 
66.18

 
48.76

 
0.0635

 
1st Quarter
 
56.20

 
38.55

 
0.0635

 

______________________________
(1)
On December 12, 2012, we paid a regular quarterly dividend of $0.1875 per share and a special dividend of $3.75 per share.
Our credit facility and the indenture governing our senior notes restrict our ability to pay dividends or other distributions on our equity securities. However, the effectiveness of these restrictions in the indenture governing the senior notes is currently suspended because the senior notes are currently rated investment grade by at least two nationally recognized credit rating agencies. See "Management's Discussion and Analysis of Financial Condition and Results of Operations—Liquidity and Capital Resources—Debt" for additional information.
Issuer Purchases of Equity Securities
The following table provides information on our purchase of equity securities during the quarter ended December 31, 2012:
Period
 
Total Number
of Shares
Purchased
 
Average Price
Paid Per
Share
 
Total Number
of Shares
Purchased as Part
of Publicly
Announced Plans
or Programs (1)
 
Maximum Number
(or Approximate
Dollar Value) of
Shares that
May Yet Be
Purchased Under the
Plans or Programs (1)
October 2012
 

 
$

 

 
$
86,698,000

November 2012
 

 
$

 

 
$
86,698,000

December 2012
 

 
$

 

 
$
86,698,000

Total
 

 
$

 

 
 

______________________________
(1)
On August 22, 2011, we announced the authorization by our Board of Directors of a $100.0 million stock repurchase program. As of December 31, 2012, 284,493 shares of our common stock had been acquired at an aggregate purchase price of approximately $13.3 million. Transaction fees and commissions are not reported in the average price paid per share in the table above. Decisions regarding the amount and the timing of purchases under the program will be influenced by our cash on hand, our cash flow from operations, general market conditions and other factors. The program may be discontinued by our Board of Directors at any time.

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Equity Compensation Plan Information
Securities authorized for issuance under equity compensation plans are as follows:
Plan Category
 
Number of securities 
to be issued upon
exercise of outstanding options,
warrants and rights
(a)
 
Weighted-average
exercise price of
outstanding
options, warrants 
and rights
(b)
 
Number of  securities
remaining available
for future issuance under equity
compensation plans
(excluding securities
reflected in column
(a))
(c)
Equity compensation plans approved by security holders
 
712,320

 
$
31.40

 
3,273,085

Equity compensation plans not approved by security holders
 
N/A

 
N/A

 
N/A

Total
 
712,320

 
$

 
3,273,085

Other information regarding our equity compensation plans is set forth in the section entitled "Executive Compensation" in our Proxy Statement, which information is incorporated herein by reference.

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Item 6. Selected Financial and Operational Data (1) 
 
 
Year Ended December 31,
 
 
2012
 
2011
 
2010
 
2009
 
2008
 
 
(dollars in thousands, except per share and volume data)
Statement of Operations Data:
 
 
 
 
 
 
 
 
 
 
Net sales
 
$
3,571,041

 
$
3,619,848

 
$
3,171,787

 
$
2,325,723

 
$
3,692,353

Gross profit
 
736,960

 
559,006

 
482,683

 
195,128

 
69,368

Selling, general and administrative expenses
 
121,609

 
112,210

 
104,319

 
87,871

 
98,908

Income (loss) from operations
 
615,351

 
446,796

 
378,364

 
107,257

 
(29,540
)
Interest expense
 
(43,049
)
 
(50,992
)
 
(39,875
)
 
(34,957
)
 
(33,957
)
Debt retirement costs
 
(7,082
)
 

 

 

 

Gain from sales of equity securities
 
16,429

 

 

 

 

Other income, net (2)
 
3,520

 
5,628

 
4,471

 
6,453

 
5,475

Income (loss) before income taxes
 
585,169

 
401,432

 
342,960

 
78,753

 
(58,022
)
Provision for (benefit from) income taxes
 
199,614

 
142,466

 
121,567

 
25,758

 
(28,479
)
Net income (loss)
 
$
385,555

 
$
258,966

 
$
221,393

 
$
52,995

 
$
(29,543
)
Earnings (Loss) Per Share Information:(3)
 
 
 
 
 
 
 
 
 
 
Basic
 
$
5.78

 
$
3.89

 
$
3.35

 
$
0.80

 
$
(0.45
)
Diluted
 
$
5.75

 
$
3.87

 
$
3.34

 
$
0.80

 
$
(0.45
)
Weighted average shares outstanding
 
 
 
 
 
 
 
 
 
 
Basic
 
66,289,429

 
65,927,421

 
65,472,875

 
65,323,101

 
65,273,485

Diluted
 
66,641,495

 
66,300,158

 
65,676,664

 
65,421,390

 
65,273,485

Balance Sheet Data (end of period):
 
 
 
 
 
 
 
 
 
 
Cash and cash equivalents
 
$
790,078

 
$
825,901

 
$
630,299

 
$
245,592

 
$
90,239

Marketable securities
 
124,873

 

 

 

 

Restricted cash
 

 
96,283

 
150,288

 
101,149

 
134,432

Working capital (4)
 
1,352,903

 
1,391,561

 
1,152,382

 
701,812

 
586,701

Total assets
 
3,412,196

 
3,266,821

 
2,954,144

 
2,446,356

 
2,286,989

Total debt
 
763,761

 
764,563

 
764,482

 
515,400

 
510,319

Stockholders' equity
 
1,872,256

 
1,756,312

 
1,505,070

 
1,284,982

 
1,239,060

Cash dividends declared per share (5)
 
$
4.2725

 
$
0.2746

 
$
0.2420

 
$
0.2200

 
$
0.2050

Other Operating Data:
 
 
 
 
 
 
 
 
 
 
Cash flow from:
 
 
 
 
 
 
 
 
 
 
Operating activities
 
$
624,054

 
$
362,296

 
$
283,284

 
$
235,522

 
$
186,089

Investing activities
 
(466,971
)
 
(202,785
)
 
(80,275
)
 
(103,186
)
 
(171,952
)
Financing activities
 
(192,906
)
 
36,091

 
181,698

 
23,017

 
51,188

Depreciation and amortization
 
144,541

 
131,397

 
128,732

 
123,199

 
111,926

Capital expenditures
 
386,882

 
176,843

 
81,269

 
99,769

 
172,561

EBITDA (6)
 
772,759

 
583,821

 
511,567

 
236,909

 
87,861

External Sales Volume (millions of
   pounds):
 
 
 
 
 
 
 
 
 
 
Olefins Segment
 
 
 
 
 
 
 
 
 
 
Polyethylene
 
2,230

 
2,272

 
2,320

 
2,211

 
2,231

Styrene, feedstock and other
 
925

 
753

 
938

 
741

 
971

Vinyls Segment
 
 
 
 
 
 
 
 
 
 
PVC, caustic soda and other
 
1,822

 
1,749

 
1,542

 
1,346

 
1,538

Building products
 
423

 
403

 
593

 
613

 
627


______________________________

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(1)
The historical selected financial and operational data should be read together with Item 7, Management's Discussion and Analysis of Financial Condition and Results of Operations, and Item 8, Financial Statements and Supplementary Data included in this Form 10-K.
(2)
Other income, net is composed of interest income, equity income or loss, foreign exchange currency gains or losses, management fee income and other gains and losses.
(3)
As a result of an accounting standards update on earnings per share regarding participating securities that became effective on January 1, 2009, the Company is required to compute basic and diluted earnings per share under the two-class method. Accordingly, the weighted average shares for the year ended December 31, 2008 has been retrospectively adjusted and the loss per share calculation for the year ended December 31, 2008 has also been amended to reflect the new computation. The loss per share for the year ended December 31, 2008 has been adjusted, as necessary.
(4)
Working capital equals current assets less current liabilities.
(5)
Cash dividends declared for the year ended December 31, 2012 includes a special dividend of $3.75 per share paid on December 12, 2012.
(6)
EBITDA (a non-GAAP financial measure) is calculated as net income before interest expense, income taxes, depreciation and amortization. The body of accounting principles generally accepted in the United States is commonly referred to as "GAAP." For this purpose a non-GAAP financial measure is generally defined by the SEC as one that purports to measure historical and future financial performance, financial position or cash flows, but excludes or includes amounts that would not be so adjusted in the most comparable GAAP measures. We have included EBITDA in this Form 10-K because our management considers it an important supplemental measure of our performance and believes that it is frequently used by securities analysts, investors and other interested parties in the evaluation of companies in our industry, some of which present EBITDA when reporting their results. We regularly evaluate our performance as compared to other companies in our industry that have different financing and capital structures and/or tax rates by using EBITDA. EBITDA allows for meaningful company-to-company performance comparisons by adjusting for factors such as interest expense, depreciation and amortization and taxes, which often vary from company to company. In addition, we utilize EBITDA in evaluating acquisition targets. Management also believes that EBITDA is a useful tool for measuring our ability to meet our future debt service, capital expenditures and working capital requirements, and EBITDA is commonly used by us and our investors to measure our ability to service indebtedness. EBITDA is not a substitute for the GAAP measures of earnings or of cash flow and is not necessarily a measure of our ability to fund our cash needs. In addition, it should be noted that companies calculate EBITDA differently and, therefore, EBITDA as presented in this Form 10-K may not be comparable to EBITDA reported by other companies. EBITDA has material limitations as a performance measure because it excludes (1) interest expense, which is a necessary element of our costs and ability to generate revenues because we have borrowed money to finance our operations, (2) depreciation, which is a necessary element of our costs and ability to generate revenues because we use capital assets and (3) income taxes, which is a necessary element of our operations. We compensate for these limitations by relying primarily on our GAAP results and using EBITDA only supplementally. The following table reconciles EBITDA to net income (loss) and to cash flow from operating activities.


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Table of Contents

Reconciliation of EBITDA to Net Income (Loss) and
to Cash Flow from Operating Activities
 
 
Year Ended December 31,
 
 
2012
 
2011
 
2010
 
2009
 
2008
 
 
(dollars in thousands)
EBITDA
 
$
772,759

 
$
583,821

 
$
511,567

 
$
236,909

 
$
87,861

Less:
 
 
 
 
 
 
 
 
 
 
(Provision for) benefit from income taxes
 
(199,614
)
 
(142,466
)
 
(121,567
)
 
(25,758
)
 
28,479

Interest expense
 
(43,049
)
 
(50,992
)
 
(39,875
)
 
(34,957
)
 
(33,957
)
Depreciation and amortization
 
(144,541
)
 
(131,397
)
 
(128,732
)
 
(123,199
)
 
(111,926
)
Net income (loss)
 
385,555

 
258,966

 
221,393

 
52,995

 
(29,543
)
Changes in operating assets and liabilities
 
244,683

 
76,898

 
40,134

 
143,813

 
204,818

Equity in loss (income) of joint ventures
 
3,005

 
(427
)
 
(2,212
)
 
(3,818
)
 
(621
)
Deferred income taxes
 
(5,793
)
 
14,114

 
14,153

 
31,207

 
(13,879
)
Write-off of debt issuance costs
 
1,277

 

 

 

 

Impairment of long-lived assets
 

 
1,975

 

 

 

Gain from sales of equity securities
 
(16,429
)
 

 

 

 

Loss from disposition of fixed assets
 
3,886

 
1,375

 
581

 
2,711

 
4,900

Stock-based compensation expense
 
6,127

 
6,391

 
6,164

 
5,638

 
4,178

Amortization of debt issuance costs
 
1,514

 
1,683

 
2,154

 
1,461

 
954

Provision for doubtful accounts
 
229

 
1,321

 
917

 
1,970

 
15,282

Other
 

 

 

 
(455
)
 

Cash flow from operating activities
 
$
624,054

 
$
362,296

 
$
283,284

 
$
235,522

 
$
186,089


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Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations
Overview
We are a vertically integrated manufacturer and marketer of petrochemicals, polymers and fabricated building products. Our two principal business segments are Olefins and Vinyls. We use the majority of our internally-produced basic chemicals to produce higher value-added chemicals and building products.
Consumption of the basic chemicals that we manufacture in the commodity portions of our olefins and vinyls processes has increased significantly since we began operations in 1986. Our olefins and vinyls products are some of the most widely used chemicals in the world and are upgraded into a wide variety of higher value-added chemical products used in many end-markets. Petrochemicals are typically manufactured in large volume by a number of different producers using widely available technologies. The petrochemical industry exhibits cyclical commodity characteristics, and margins are influenced by changes in the balance between supply and demand and the resulting operating rates, the level of general economic activity and the price of raw materials. The cycle is generally characterized by periods of tight supply, leading to high operating rates and margins, followed by a decline in operating rates and margins primarily as a result of significant capacity additions. Due to the significant size of new plants, capacity additions are built in large increments and typically require several years of demand growth to be absorbed.
Beginning in 2009 and continuing through 2012, a cost advantage for ethane-based ethylene producers over naphtha-based ethylene producers allowed a strong export market and higher margins for North American chemical producers, including Westlake. Increased global demand for polyethylene since 2010 has resulted in improved operating margins and cash flow for our Olefins segment. However, some olefins industry consultants predict that a significant increase in worldwide ethylene and ethylene derivative capacity may occur within the next decade, with the largest increases in Asia and North America. As a result, our Olefins segment operating margins may be negatively impacted.
Weakness in the U.S. construction markets, which began in the third quarter of 2006, and the subsequent budgetary constraints in municipal spending, have contributed to lower domestic demand for our vinyls products. In addition, increases in feedstock costs, combined with the industry's inability to sufficiently raise domestic prices for PVC resin and building products in order to offset cost increases, affected our Vinyls segment's operating results in 2010 and 2011. However, since late 2010, the PVC industry has experienced an increase in PVC resin export demand, driven largely by more competitive feedstock and energy cost positions in North America. As a consequence, domestic PVC resin industry operating rates have improved since 2010, largely due to higher PVC resin export shipments. However, looking forward, our Vinyls segment operating rates and margins may continue to be negatively impacted by the slow recovery of U.S. construction markets.
While the economic environment continues to be challenging for our customers, we believe our customer base remains generally healthy. As we continue to manage our business in this environment, including the slowdown in construction activity, we have taken steps designed to address the changes in demand and margins in our Vinyls segment and its resulting impact on our operations by matching production with sales demand and continuing to operate our plants in an efficient manner. We continue to monitor our cost management programs and discretionary capital spending. The impact of the global economic environment has been challenging to our business and, depending on the performance of the global economy in 2013 and beyond, could have a negative effect on our financial condition, results of operations or cash flows.
We purchase significant amounts of ethane and propane feedstock, natural gas, ethylene, chlorine and salt from external suppliers for use in production of basic chemicals in the olefins and vinyls chains. We also purchase significant amounts of electricity to supply the energy required in our production processes. While we have agreements providing for the supply of ethane and propane feedstocks, natural gas, ethylene, chlorine, salt and electricity, the contractual prices for these raw materials and energy vary with market conditions and may be highly volatile. Factors that have caused volatility in our raw material prices in the past, and which may do so in the future include:
the availability of feedstock from shale gas and oil drilling;
shortages of raw materials due to increasing demand;
ethane, propane and liquefied natural gas exports;
capacity constraints due to construction delays, strike action or involuntary shutdowns;
the general level of business and economic activity; and
the direct or indirect effect of governmental regulation.
Significant volatility in raw material costs tends to put pressure on product margins as sales price increases could lag behind raw material cost increases. Conversely, when raw material costs decrease, customers may seek immediate relief in the form of lower sales prices. We currently use derivative instruments to reduce price volatility risk on feedstock commodities and

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lower overall costs. Normally, there is a pricing relationship between a commodity that we process and the feedstock from which it is derived. When this pricing relationship deviates from historical norms, we have from time to time entered into derivative instruments and physical positions in an attempt to take advantage of this relationship.
Our historical results have been significantly affected by our plant production capacity, our efficient use of the capacity and our ability to increase our capacity. Since our inception, we have followed a disciplined growth strategy that focuses on plant acquisitions, new plant construction and internal expansion. We evaluate each expansion project on the basis of its ability to produce sustained returns in excess of our cost of capital and its ability to improve efficiency or reduce operating costs.
As noted above in Item 1A, "Risk Factors," we are subject to extensive environmental regulations, which may impose significant additional costs on our operations in the future. Further, concern about GHG emissions and their possible effects on climate change has led to the enactment of regulations, and to proposed legislation and additional regulations that could affect us in the form of increased cost of feedstocks and fuel, other increased costs of production and decreased demand for our products. While we do not expect any of these enactments or proposals to have a material adverse effect on us in the near term, we cannot predict the longer-term effect of any of these regulations or proposals on our future financial condition, results of operations or cash flows.
Recent Developments
We previously announced an expansion program to increase the ethane-based ethylene capacity of both of the ethylene units at our Lake Charles complex. In January 2013, we commenced the expansion of the Petro 2 ethylene unit. This expansion is expected to be completed in the first quarter of 2013 in conjunction with a planned maintenance turnaround and is expected to increase ethane-based ethylene capacity by approximately 230 - 240 million pounds annually in support of our ethylene integration strategy. The Petro 2 ethylene unit is expected to be down for approximately 60 days for the planned maintenance turnaround. In addition, we plan to expand the ethane-based ethylene capacity of the second ethylene unit at our Lake Charles complex, but we are still evaluating plans for this expansion.
In October 2012, we announced a project to convert the feedstock for our Calvert City ethylene plant from propane to ethane and the planned increase in ethylene capacity from 450 million pounds annually to 630 million pounds annually. This expansion and feedstock conversion project is expected to enhance our vinyl chain integration and leverage low cost ethane being developed in the Marcellus shale area. The ethylene expansion and feedstock conversion project is targeted for start-up in the second quarter of 2014. In addition, we announced an expansion of the existing PVC plant in Calvert City, which should allow us to take advantage of the increased ethylene production at our Calvert City complex and to provide additional PVC resin to meet the growing demands of our global customers. The expansion of the Calvert City PVC plant is expected to increase PVC resin capacity by approximately 200 million pounds annually and is targeted for completion by late 2014.
On July 17, 2012, we issued $250.0 million aggregate principal amount of 3.60% senior notes due 2022 (the "3.60% Notes Due 2022"). On July 30, 2012, we voluntarily redeemed all $250.0 million aggregate principal amount of our outstanding 6 5/8% senior notes due 2016 (the "2016 Notes"), at a redemption price of 102.208% of the principal amount, plus accrued and unpaid interest to the redemption date. We used the net proceeds from the issuance of the 3.60% Notes Due 2022, plus cash on hand, to pay the redemption price of the 2016 Notes. As a result of the early redemption of the 2016 Notes, we recognized $7.1 million in non-operating expense in 2012 consisting primarily of a pre-payment premium of $5.5 million and a write-off of $1.3 million in previously capitalized debt issuance costs.
On March 22, 2012, a fire occurred at the VCM unit at our Geismar vinyls complex, resulting in an unscheduled shut down of our Geismar complex. VCM is an intermediate product used in the production of PVC at that complex. We restarted the PVC and VCM plants at our Geismar complex in late April and mid May, respectively, but operated both plants at reduced capacity until we returned them to normal operations in June 2012. In addition to the lost production resulting from the shut down, we incurred repair costs and unabsorbed fixed manufacturing costs in connection with the shutdown, which negatively impacted our Vinyls segment's income from operations in 2012.


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Results of Operations
Segment Data
 
 
Year Ended December 31,
 
 
2012
 
2011
 
2010
 
 
(dollars in thousands, except per share data)
Net external sales
 
 
 
 
 
 
Olefins
 
 
 
 
 
 
Polyethylene
 
$
1,658,551

 
$
1,772,144

 
$
1,656,203

Styrene, feedstock and other
 
841,427

 
795,698

 
605,009

Total olefins
 
2,499,978

 
2,567,842

 
2,261,212

Vinyls
 
 
 
 
 
 
PVC, caustic soda and other
 
743,275

 
757,314

 
558,156

Building products
 
327,788

 
294,692

 
352,419

Total vinyls
 
1,071,063

 
1,052,006

 
910,575

Total
 
$
3,571,041

 
$
3,619,848

 
$
3,171,787

 
 
 
 
 
 
 
Income (loss) from operations
 
 
 
 
 
 
Olefins
 
$
552,762

 
$
459,266

 
$
460,027

Vinyls
 
85,942

 
4,012

 
(62,429
)
Corporate and other
 
(23,353
)
 
(16,482
)
 
(19,234
)
Total income from operations
 
615,351

 
446,796

 
378,364

Interest expense
 
(43,049
)
 
(50,992
)
 
(39,875
)
Debt retirement costs
 
(7,082
)
 

 

Gain from sales of equity securities
 
16,429

 

 

Other income, net
 
3,520

 
5,628

 
4,471

Provision for income taxes
 
199,614

 
142,466

 
121,567

Net income
 
$
385,555

 
$
258,966

 
$
221,393

Earnings per diluted share
 
$
5.75

 
$
3.87

 
$
3.34

 
 
Year Ended December 31,
 
 
2012
 
2011
 
 
Average Sales
Price
 
Volume
 
Average Sales
Price
 
Volume
Product sales price and volume percentage change
   from prior year
 
 
 
 
 
 
 
 
Olefins
 
-6.9
 %
 
+4.3
%
 
+16.1
%
 
-2.6
 %
Vinyls
 
-3.3
 %
 
+5.1
%
 
+19.2
%
 
-3.7
 %
Company average
 
-5.9
 %
 
+4.5
%
 
+17.0
%
 
-2.9
 %
 
 
Year Ended December 31,
 
 
2012
 
2011
 
2010
Average industry prices (1)
 
 
 
 
 
 
Ethane (cents/lb)
 
13.4

 
25.8

 
20.2

Propane (cents/lb)
 
23.7

 
34.6

 
27.6

Ethylene (cents/lb) (2)
 
56.9

 
55.7

 
44.5

Polyethylene (cents/lb) (3)
 
94.3

 
97.3

 
88.7

Styrene (cents/lb) (4)
 
77.0

 
71.9

 
62.7

Caustic ($/short ton) (5)
 
607.5

 
547.5

 
365.4

Chlorine ($/short ton) (6)
 
264.8

 
330.2

 
322.9

PVC (cents/lb) (7)
 
55.3

 
52.0

 
43.3


______________________________

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(1)
Industry pricing data was obtained through IHS Chemical. We have not independently verified the data.
(2)
Represents average North American spot prices of ethylene over the period as reported by IHS Chemical.
(3)
Represents average North American contract prices of polyethylene low density film over the period as reported by IHS Chemical.
(4)
Represents average North American contract prices of styrene over the period as reported by IHS Chemical.
(5)
Represents average North American acquisition prices of caustic soda (diaphragm grade) over the period as reported by IHS Chemical.
(6)
Represents average North American contract prices of chlorine (into chemicals) over the period as reported by IHS Chemical.
(7)
Represents average North American contract prices of PVC over the period as reported by IHS Chemical. During the first quarter of 2012, IHS Chemical made a 23 cents per pound non-market downward adjustment to PVC resin prices. For comparability, we adjusted both prior year periods' PVC resin price downward by 23 cents per pound consistent with the IHS Chemical non-market adjustment.
Summary
For the year ended December 31, 2012, we had net income of $385.6 million, or $5.75 per diluted share, on net sales of $3,571.0 million. This represents an increase in net income of $126.6 million, or $1.88 per diluted share, from 2011 net income of $259.0 million, or $3.87 per diluted share, on net sales of $3,619.8 million. Net sales for the year ended December 31, 2012 decreased $48.8 million to $3,571.0 million compared to net sales for 2011 of $3,619.8 million, primarily due to lower sales prices for most of our major products, offset by higher sales volumes of feedstock, building products and caustic. Income from operations was $615.4 million for the year ended December 31, 2012 as compared to $446.8 million for 2011, an increase of $168.6 million. Income from operations benefited mainly from a significant decrease in feedstock and energy costs. Industry ethane prices decreased 48.1% and industry propane prices decreased 31.5% in 2012 as compared to 2011. The 2011 income from operations was negatively impacted by the lost production, lost sales and higher operating costs associated with four separate events: an unscheduled outage at one of our ethylene units in Lake Charles caused by a weather related power supply failure from a third party power provider, the turnaround of our Calvert City facility, the closure of our Springfield, Kentucky PVC pipe production facility and higher operating costs resulting from a reduction in our ethylene operating rates in Lake Charles in the first quarter of 2011 due to a fire at a third party storage facility in Mont Belvieu.
2012 Compared with 2011
Net Sales. Net sales decreased by $48.8 million, or 1.3%, to $3,571.0 million in 2012 from $3,619.8 million in 2011. This decrease was mainly attributable to lower sales prices for most of our major products, offset by higher feedstock, building products and caustic sales volumes as compared to 2011. Average sales prices for 2012 decreased by 5.9% as compared to 2011. Overall sales volume increased by 4.5% in 2012 as compared to 2011.
Gross Profit. Gross profit margin percentage increased to 20.6% in 2012 from 15.4% in 2011. The improvement in gross profit margin percentage was predominantly due to significantly lower feedstock and energy costs, which were only partially offset by lower sales prices. Our raw material costs in both segments normally track industry prices, which experienced a decrease of 48.1% for ethane and 31.5% for propane in 2012 as compared to 2011. Sales prices decreased an average of 5.9% for 2012 as compared to 2011.
Selling, General and Administrative Expenses. Selling, general and administrative expenses increased $9.4 million, or 8.4%, in 2012 as compared to 2011. The increase was mainly attributable to expenses associated with our terminated proposal to acquire Georgia Gulf Corporation and an increase in payroll and related labor costs, including incentive compensation, partially offset by a decrease in the facility fee for our senior secured revolving credit facility.
Interest Expense. Interest expense decreased by $8.0 million to $43.0 million in 2012 from $51.0 million in 2011, largely due to increased capitalized interest on major capital projects in 2012 and lower interest rates for the 3.60% Notes Due 2022 as compared to the 2016 Notes. Debt balances during 2012 remained relatively unchanged compared to 2011.
Debt Retirement Costs. We recognized $7.1 million in non-operating expense in 2012 consisting primarily of a pre-payment premium of $5.5 million and a write-off of $1.3 million in previously capitalized debt issuance costs as a result of the early redemption of the 2016 Notes.
Gain from Sales of Equity Securities. We liquidated our holdings of available-for-sale securities, including shares of Georgia Gulf Corporation common stock, in the second and third quarters of 2012. As a result of the dispositions, we recognized a gain of $16.4 million in non-operating income in 2012.

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Other Income, Net. Other income, net decreased by $2.1 million to $3.5 million in 2012 from $5.6 million in 2011, as lower equity in income from our joint ventures and higher foreign exchange currency losses were partially offset by higher interest income in 2012.
Income Taxes. The effective income tax rate was 34.1% in 2012 as compared to 35.5% in 2011. The effective income tax rate for 2012 was below the U.S. federal statutory rate of 35.0% primarily due to the domestic manufacturing deduction and state income tax credits, offset by state income taxes. The effective income tax rate for 2011 was above the U.S. federal statutory rate of 35.0% primarily due to state income taxes, offset by state tax credits and the domestic manufacturing deduction.
Olefins Segment
Net Sales. Net sales decreased by $67.8 million, or 2.6%, to $2,500.0 million in 2012 from $2,567.8 million in 2011 as higher feedstock sales volumes were more than offset by lower sales prices for most of our major products. Average sales prices for the Olefins segment decreased by 6.9% in 2012 as compared to 2011, while average sales volumes increased by 4.3% in 2012 as compared to 2011.
Income from Operations. Income from operations was $552.8 million in 2012 as compared to $459.3 million in 2011. This increase was mainly attributable to higher olefins integrated product margins as compared to 2011. Margins improved as a result of significantly lower feedstock and energy costs, which were only partially offset by lower sales prices. Trading activity for 2012 resulted in a loss of $11.6 million as compared to a gain of $2.0 million for 2011. Results for 2011 were negatively impacted by lost ethylene production, repair costs and unabsorbed fixed manufacturing costs incurred in connection with the unscheduled outage at one of our ethylene units in Lake Charles and the fire at a third party storage facility at Mont Belvieu.
Vinyls Segment
Net Sales. Net sales increased by $19.1 million, or 1.8%, to $1,071.1 million in 2012 from $1,052.0 million in 2011. This increase was primarily attributable to higher building products and caustic sales prices and sales volumes, partially offset by lower PVC resin sales prices as compared to 2011. Average sales prices for the Vinyls segment decreased by 3.3% in 2012 as compared to 2011, while average sales volumes increased by 5.1% in 2012 as compared to 2011.
Income from Operations. Income from operations was $85.9 million in 2012, an increase of $81.9 million when compared to the 2011 income from operations of $4.0 million. This increase was predominantly driven by lower feedstock and energy costs and higher caustic and building products sales volumes as compared to 2011. The income from operations for 2012 was negatively impacted by an unscheduled shut down of our Geismar vinyls complex and lower operating rates at that complex as a result of operational issues related to a March 2012 fire at the complex. We expensed approximately $10.5 million of costs associated with that event in 2012. The Vinyls segment's operating results for 2011 were negatively impacted by the turnaround at the Calvert City facility and the closure of the Springfield PVC pipe facility.
2011 Compared with 2010
Net Sales. Net sales increased by $448.0 million, or 14.1%, to $3,619.8 million in 2011 from $3,171.8 million in 2010. This increase was mainly driven by higher sales prices for all major products and higher sales volume for PVC resin, partially offset by lower building products and ethylene sales volume as compared to 2010. Average sales prices for 2011 increased by 17.0% as compared to 2010. Overall sales volume decreased by 2.9% in 2011 as compared to 2010, primarily caused by lower building products sales volume attributable to weakness in the U.S. construction markets.
Gross Profit. Gross profit margin percentage improved slightly to 15.4% in 2011 from 15.2% in 2010. The improvement in gross profit percentage was primarily due to improved Vinyls margins resulting from higher PVC resin, building products and caustic sales prices and higher PVC resin sales volume, mostly offset by higher feedstock costs, the unscheduled Lake Charles outage, the Calvert City turnaround, the closure of our Springfield PVC pipe facility and the fire at a third-party storage facility in Mont Belvieu. Our raw material costs in both segments normally track industry prices, which experienced an increase of 27.7% for ethane and 25.4% for propane in 2011 as compared to 2010. Average sales prices for 2011 increased by 17.0% as compared to 2010.
Selling, General and Administrative Expenses. Selling, general and administrative expenses increased $7.9 million, or 7.6%, in 2011 as compared to 2010. The increase was mainly attributable to an increase in payroll and related labor costs, including incentive compensation, partially offset by a decrease in legal and consulting fees.
Interest Expense. Interest expense increased by $11.1 million to $51.0 million in 2011 from $39.9 million in 2010, primarily due to higher average debt outstanding for 2011 as a result of the issuance of our senior notes in July 2010 and December 2010.

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Other Income, Net. Other income, net increased by $1.1 million to $5.6 million in 2011 from $4.5 million in 2010, mainly due to higher interest income earned from higher cash balances and higher equity in income from our joint ventures, partially offset by foreign exchange currency losses.
Income Taxes. The effective income tax rate was 35.5% in 2011 as compared to 35.4% in 2010. The effective income tax rate for 2011 was above the statutory rate of 35.0% primarily due to state income taxes, offset by state tax credits and the domestic manufacturing deduction. The effective income tax rate for 2010 was above the statutory rate of 35.0% primarily due to state income taxes, offset by state tax credits and the domestic manufacturing deduction.
Olefins Segment
Net Sales. Net sales increased by $306.6 million, or 13.6%, to $2,567.8 million in 2011 from $2,261.2 million in 2010. This increase was primarily due an increase in sales prices for all major products, partially offset by lower ethylene and polyethylene sales volumes. Average sales prices for the Olefins segment increased by 16.1% in 2011 as compared to 2010, while average sales volumes decreased by 2.6% in 2011 as compared to 2010.
Income from Operations. Income from operations was $459.3 million in 2011 as compared to $460.0 million in 2010 as higher polyethylene and styrene sales prices were mostly offset by higher feedstock costs as compared to 2010. In addition, income from operations for 2011 was negatively impacted by the unscheduled outage at one of our ethylene units in Lake Charles and the fire at a third-party storage facility at Mont Belvieu. Trading activity for 2011 resulted in a gain of $2.0 million as compared to a gain of $0.1 million for 2010. Results for 2010 were negatively impacted by the unscheduled outage at one of our ethylene units in Lake Charles caused by severe weather.
Vinyls Segment
Net Sales. Net sales increased by $141.4 million, or 15.5%, to $1,052.0 million in 2011 from $910.6 million in 2010. This increase was primarily driven by higher sales prices for all major products and an increase in sales volume for PVC resin, partially offset by lower building products sales volume as compared to 2010. Average sales prices for the Vinyls segment increased by 19.2% in 2011 as compared to 2010, while average sales volumes decreased by 3.7% in 2011 as compared to 2010, primarily caused by lower building products sales volume.
Income (Loss) from Operations. Income from operations improved by $66.4 million to $4.0 million in 2011 as compared to a loss from operations of $62.4 million in 2010. This change was primarily attributable to improved caustic, PVC resin and building products margins and higher PVC resin sales volume as compared to 2010, partially offset by the negative impact of the turnaround at our Calvert City facility and the closure of our Springfield PVC pipe facility. PVC resin sales volume benefited from a stronger export market in 2011. In addition, income from operations benefited from a change in the intersegment market pricing methodology used to account for intersegment sales of ethylene. Additional information appears in Note 19 to the audited consolidated financial statements appearing elsewhere in this Form 10-K. Overall, Vinyls margins remained under pressure in 2011 due to the continued weakness in the U.S. construction markets and budgetary constraints in municipal spending.
Cash Flows
Operating Activities
Operating activities provided cash of $624.1 million in 2012 compared to $362.3 million in 2011. The $261.8 million increase in cash flows from operating activities was mainly due to an increase in income from operations and a decrease in working capital requirements, as compared to 2011. Income from operations increased by $168.6 million in 2012 as compared to 2011 primarily as a result of higher olefins and vinyls integrated product margins. Changes in components of working capital, which we define for purposes of this cash flow discussion as net accounts receivable, inventories, prepaid expenses and other current assets, less accounts payable and accrued liabilities, provided cash of $115.5 million in 2012, compared to $44.4 million of cash used in 2011, a favorable change of $159.9 million. This change was mainly due to a decrease in inventory and accounts receivable during 2012 primarily attributable to lower feedstock costs and lower average sales prices.
Operating activities provided cash of $362.3 million in 2011 compared to $283.3 million in 2010. The $79.0 million increase in cash flows from operating activities was primarily due to an increase in income from operations and a decrease in working capital requirements, as compared to 2010, partially offset by higher income taxes paid. Income from operations increased by $68.4 million in 2011 as compared to 2010 primarily as a result of improved caustic margins, higher PVC resin and PVC pipe sales prices and higher PVC resin sales volume. Changes in components of working capital used cash of $44.4 million in 2011, compared to $85.8 million of cash used in 2010, a favorable change of $41.4 million. This change was primarily the result of an increase in inventory during the 2011 period that was smaller than the increase in inventory during the 2010 period. Income taxes paid was $126.3 million in 2011 as compared to $108.2 million in 2010.

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Investing Activities
Net cash used for investing activities during 2012 was $467.0 million as compared to net cash used of $202.8 million in 2011. Capital expenditures were $386.9 million in 2012 compared to $176.8 million in 2011. The higher capital expenditures in 2012 were largely attributable to the construction of the new chlor-alkali plant at our Geismar facility, the expansion of the ethylene unit at our Lake Charles complex and the feedstock conversion and ethylene furnaces modernization projects at our Calvert City complex. Capital expenditures in 2011 were mainly incurred on the construction of the new Geismar chlor-alkali plant and the expansion of the ethylene unit at our Lake Charles complex. The remaining capital expenditures in 2012 and 2011 primarily related to projects to improve production capacity or reduce costs and maintenance, safety and environmental projects at our various facilities. We expect to incur capital expenditures related to environmental compliance, including equipment replacement and upgrades to maintain compliance, of approximately $10.0 million and $13.0 million in 2013 and 2014, respectively. The expected 2013 and 2014 capital expenditures are relatively higher than the amounts we have actually spent related to environmental compliance in recent years in large part due to new EPA regulations such as the PVC MACT rules and increasingly stringent requirements associated with environmental permits. Construction of assets pending sale-leaseback and proceeds received from the sale of certain of these assets totaled $4.3 million and $2.3 million, respectively, in 2012 and pertained to transportation equipment. Purchases of securities in 2012 totaled $127.8 million and were comprised of short-term commercial paper and shares of Georgia Gulf Corporation common stock. We received aggregate proceeds of $47.7 million from the sale of all our available-for-sale equity securities in 2012.
Net cash used for investing activities during 2011 was $202.8 million as compared to net cash used of $80.3 million in 2010. Capital expenditures were $176.8 million in 2011 compared to $81.3 million in 2010. The higher capital expenditures in 2011 were largely attributable to the construction of the new chlor-alkali plant at our Geismar facility, the expansion of the ethylene unit at our Lake Charles complex and expenditures related to other capital projects to improve production capacity or reduce costs at our various facilities. The remaining capital expenditures in 2011 and capital expenditures in 2010 primarily related to maintenance, safety and environmental projects. Purchases of equity securities, primarily comprised of shares of Georgia Gulf Corporation common stock, and other investments totaled $30.3 million in 2011.
Financing Activities
Net cash used for financing activities during 2012 was $192.9 million as compared to net cash provided of $36.1 million in 2011. The 2012 activity was primarily related to a $285.5 million payment of cash dividends, which included a special dividend payment of approximately $250.6 million, $10.8 million of repurchases of shares of our common stock and $2.2 million of debt issuance costs associated with the issuance of the 3.60% Notes Due 2022. Net cash used for financing activities was partially offset by proceeds of $248.8 million from the issuance of the 3.60% Notes Due 2022, which was offset by the optional redemption of $250.0 million aggregate principal amount of the 2016 Notes. In addition, we received proceeds of $10.4 million from the exercise of stock options and a $96.4 million draw-down of our restricted cash for use for eligible capital expenditures in 2012. As of December 31, 2012, we had drawn down all of our restricted cash. The 2011 activity was mainly related to the draw-down of our restricted cash and the receipt of proceeds from the exercise of stock options, partially offset by the payment of cash dividends.
Net cash provided by financing activities during 2011 was $36.1 million as compared to net cash provided of $181.7 million in 2010. The 2011 activity was primarily related to a $54.2 million draw-down of our restricted cash for use for eligible capital expenditures and proceeds of $5.3 million from the exercise of stock options. Net cash provided by financing activities was partially offset by the $18.3 million payment of cash dividends, $2.5 million of repurchases of shares of our common stock and fees incurred in connection with the amendment and restatement of our revolving credit facility in 2011. The 2010 activity was primarily related to a $197.3 million draw-down of our restricted cash, partially offset by the payment of cash dividends and debt issuance costs associated with the issuance of our senior notes in July 2010 and December 2010.
Liquidity and Capital Resources
Liquidity and Financing Arrangements
Our principal sources of liquidity are from cash and cash equivalents, cash from operations, short-term borrowings under our revolving credit facility and our long-term financing. As we continue to manage our business through the current economic environment, we have maintained our focus on cost control and various initiatives designed to preserve cash and liquidity.
In October 2012, we announced a project to convert the feedstock for our Calvert City ethylene plant from propane to ethane and the planned increase in ethylene capacity from 450 million pounds annually to 630 million pounds annually. The ethylene expansion and feedstock conversion project is targeted for start-up in the second quarter of 2014. In addition, we announced an expansion of the existing PVC plant in Calvert City, which should allow us to take advantage of the increased ethylene production at our Calvert City complex and to provide additional PVC resin to meet the growing demands of our global customers. The expansion of the Calvert City PVC plant is expected to increase PVC resin capacity by approximately

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200 million pounds annually and is targeted for completion by late 2014. These projects are currently estimated to cost in the range of $210.0 million to $240.0 million in the aggregate. Further, in December 2011, we announced plans to perform a major modernization of the ethylene furnaces at our Calvert City complex. We currently expect the modernization to be completed by mid-2013. This capital project is currently estimated to cost approximately $40.0 million.
In April 2011, we announced an expansion program to increase the ethane-based ethylene capacity of both of the ethylene units at our Lake Charles complex. We currently expect to complete the expansion of one of the two ethylene units in the first quarter of 2013. This expansion is currently estimated to cost in the range of $110.0 million to $145.0 million. The additional capacity from this expansion is expected to provide ethylene for existing internal uses.
In August 2010, we announced that we intend to proceed with the previously announced plans for the construction of a new chlor-alkali plant at our Geismar facility. The project is currently estimated to cost in the range of $370.0 million to $420.0 million and is targeted for start-up in the second half of 2013.
These capital projects are expected to be funded with cash on hand, cash flow from operations, and, if necessary, borrowings under our revolving credit facility and other external financing. As of December 31, 2012, we had incurred a total cost of approximately $362.3 million on these capital projects.
In August 2011, our Board of Directors authorized a stock repurchase program totaling $100.0 million. As of December 31, 2012, we had repurchased 284,493 shares of our common stock for an aggregate purchase price of approximately $13.3 million under this program. We did not repurchase any shares under this program during the three months ended December 31, 2012. Purchases under this program may be made either through the open market or in privately negotiated transactions. Decisions regarding the amount and the timing of purchases under the program will be influenced by our cash on hand, our cash flow from operations, general market conditions and other factors. The program may be discontinued by our Board of Directors at any time.
We believe that our sources of liquidity as described above will be adequate to fund our normal operations and ongoing capital expenditures. Funding of any potential large expansions or any potential acquisitions may depend on our ability to obtain additional financing in the future. We may not be able to access additional liquidity at cost effective interest rates due to the volatility of the commercial credit markets.
Cash, Cash Equivalents, Current Marketable Securities and Restricted Cash
As of December 31, 2012, our cash, cash equivalents and current marketable securities totaled $915.0 million. We had no restricted cash balance at December 31, 2012. In addition, we have a revolving credit facility available to supplement cash if needed, as described under "Debt" below.
Debt
As of December 31, 2012, our long-term debt, including current maturities, totaled $763.8 million, consisting of $250.0 million principal amount of 3.60% Notes Due 2022 (less the unamortized discount of $1.1 million), $100.0 million of 6 ½% senior notes due 2029, $250.0 million of 6 ¾% senior notes due 2032, $89.0 million of 6 ½% senior notes due 2035 (the "6 ½% GO Zone Senior Notes Due 2035"), $65.0 million of 6 ½% senior notes due 2035 (the "6 ½% IKE Zone Senior Notes Due 2035") (collectively, but excluding the 3.60% Notes Due 2022, the "Senior Notes") and a $10.9 million loan from the proceeds of tax-exempt waste disposal revenue bonds (supported by an $11.3 million letter of credit). The 6 ½% senior notes due 2029, the 6 ¾% senior notes due 2032, the 6 ½% GO Zone Senior Notes Due 2035 and the 6 ½% IKE Zone Senior Notes Due 2035 evidence and secure our obligations to the Louisiana Local Government Environmental Facility and Development Authority (the "Authority"), a political subdivision of the State of Louisiana, under four loan agreements relating to the issuance of $100.0 million, $250.0 million, $89.0 million and $65.0 million aggregate principal amount of the Authority's tax-exempt revenue bonds, respectively. As of December 31, 2012, debt outstanding under the tax-exempt waste disposal revenue bonds bore interest at a variable rate. As of December 31, 2012, we were in compliance with all of the covenants with respect to the 3.60% Notes Due 2022, the Senior Notes, our waste disposal revenue bonds and our revolving credit facility.
Revolving Credit Facility
We have a $400.0 million senior secured revolving credit facility. The facility includes a provision permitting us to increase the size of the facility, up to four times, in increments of at least $25.0 million each (up to a maximum of $150.0 million) under certain circumstances if certain lenders agree to commit to such an increase.
The facility allows us to borrow up to (1) 85% of the net amount of eligible accounts receivable, plus (2) the lesser of (a) 70% of the value of the lower of cost or market of eligible inventory, or (b) 85% of the appraised net orderly liquidation value of all eligible inventory, plus (3) 100% of cash held in an account with the agent under the credit facility and subject to a

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control agreement with the agent, minus (4) such reserves as the agent may establish. Advances on inventory are limited to $325.0 million. The facility includes a $400.0 million sub-limit for letters of credit, and any outstanding letters of credit will be deducted from availability under the facility.
At December 31, 2012, we had no borrowings outstanding under the revolving credit facility. Any borrowings under the facility will bear interest at either LIBOR plus a spread ranging from 1.75% to 2.25% or a base rate plus a spread ranging from 0.25% to 0.75%. The revolving credit facility also requires an unused commitment fee of 0.375% per annum. All interest rates under the facility are subject to monthly grid pricing adjustments based on prior month average daily loan availability. The revolving credit facility matures on September 16, 2016. As of December 31, 2012, we had outstanding letters of credit totaling $16.2 million and borrowing availability of $383.8 million under the revolving credit facility.
Our revolving credit facility requires us to maintain a minimum fixed charge coverage ratio of 1.0:1 for successive 30-day periods after any date on which the borrowing availability under the facility is less than the greater of (1) 12.5% of the commitments under the facility and (2) $50.0 million, until the borrowing availability exceeds the greater of the amount in clause (1) and the amount in clause (2) for a 30-day period.
In order to make acquisitions or investments, our revolving credit facility provides that (1) we must maintain a minimum borrowing availability of at least the greater of $100.0 million or 25% of the total bank commitments under our revolving credit facility or (2) we must maintain a minimum borrowing availability of at least the greater of $70.0 million or 17.5% of the total bank commitments under our revolving credit facility and meet a minimum fixed charge coverage ratio of 1.0:1 under our revolving credit facility. However, we may make specified distributions up to an aggregate of $25.0 million and specified acquisitions up to an aggregate of $25.0 million if either we maintain a minimum borrowing availability of at least the greater of $70.0 million or 17.5% of the total bank commitments under our revolving credit facility or we meet the minimum fixed charge coverage ratio of 1.0:1 under our revolving credit facility. Notwithstanding the foregoing, we may make (1) investments up to $200.0 million in one or more joint ventures that own feedstock, raw material and ethylene pipeline, storage and fractionating facilities and (2) additional investments up to $55.0 million in Suzhou Huasu Plastics Co., Ltd. The revolving credit facility contains other customary covenants and events of default that impose significant operating and financial restrictions on us. These restrictions, among other things, provide limitations on the occurrence of additional indebtedness and our ability to create liens, to engage in certain affiliate transactions and to engage in sale-leaseback transactions.
3.60% Senior Notes due 2022 and 6 5/8% Senior Notes due 2016
On July 17, 2012, we issued $250.0 million aggregate principal amount of the 3.60% Notes Due 2022, the net proceeds of which, together with cash on hand, were used, on July 30, 2012 to redeem all $250.0 million principal amount of the 2016 Notes, at the redemption price of 102.208% of the principal amount, plus accrued and unpaid interest to the redemption date. As a result of the early redemption of the 2016 Notes, we recognized $7.1 million in non-operating expense in the third quarter of 2012 consisting primarily of a pre-payment premium of $5.5 million and a write-off of $1.3 million in previously capitalized debt issuance costs.
The 3.60% Notes Due 2022 are unsecured and were issued with an original issue discount of $1.2 million. There is no sinking fund and no scheduled amortization of the 3.60% Notes Due 2022 prior to maturity. We may optionally redeem the 3.60% Notes Due 2022 at any time and from time to time prior to April 15, 2022 (three months prior to the maturity date) for 100% of the principal plus accrued interest and a discounted "make whole" payment. On or after April 15, 2022, we may optionally redeem the 3.60% Notes Due 2022 for 100% of the principal plus accrued interest. The holders of the 3.60% Notes Due 2022 may require us to repurchase the 3.60% Notes Due 2022 at a price of 101% of their principal amount, plus accrued and unpaid interest to the date of repurchase, upon the occurrence of both a "change of control" and, within 60 days of such change of control, a "below investment grade rating event" (as such terms are defined in the indenture governing the 3.60% Notes Due 2022). All of our domestic subsidiaries that guarantee other indebtedness of ours or of another guarantor of the 3.60% Notes Due 2022 in excess of $5.0 million are guarantors of the 3.60% Notes Due 2022.
The indenture governing the 3.60% Notes Due 2022 contains customary events of default and covenants that will restrict our and certain of our subsidiaries' ability to (1) incur certain secured indebtedness, (2) engage in certain sale-leaseback transactions and (3) consolidate, merge or transfer all or substantially all of our assets.
GO Zone Bonds
In December 2010, the Authority completed the offering of $89.0 million of 6 ½% tax-exempt revenue bonds due November 1, 2035 under the Gulf Opportunity Zone Act of 2005 (the "GO Zone Act"). The bonds are subject to optional redemption by the Authority upon the direction of the Company at any time prior to November 1, 2020 for 100% of the principal plus accrued interest and a discounted "make whole" payment. On or after November 1, 2020, the bonds are subject to optional redemption by the Authority upon the direction of the Company for 100% of the principal plus accrued interest.

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In July 2010, the Authority completed the reoffering of $100.0 million of 6 ½% tax-exempt revenue bonds due August 1, 2029 under the GO Zone Act. The bonds are subject to optional redemption by the Authority upon the direction of the Company at any time prior to August 1, 2020 for 100% of the principal plus accrued interest and a discounted "make whole" payment. On or after August 1, 2020, the bonds are subject to optional redemption by the Authority upon the direction of the Company for 100% of the principal plus accrued interest.
In December 2007, the Authority issued $250.0 million of 6 ¾% tax-exempt revenue bonds due November 1, 2032 under the GO Zone Act. The bonds are subject to optional redemption by the Authority upon the direction of the Company at any time prior to November 1, 2017 for 100% of the principal plus accrued interest and a discounted "make whole" payment. On or after November 1, 2017, the bonds are subject to optional redemption by the Authority upon the direction of the Company for 100% of the principal plus accrued interest.
Each series of the bonds is subject to redemption and the holders may require the bonds to be repurchased upon a change of control or a change in or loss of the current tax status of the bonds. In addition, the bonds are subject to optional redemption by the Authority upon the direction of the Company if certain events have occurred in connection with the operation of the projects for which the bond proceeds may be used, including if the Company has determined that the continued operation of any material portion of the projects would be impracticable, uneconomical or undesirable for any reason.
In connection with each offering of the bonds, we entered into a loan agreement with the Authority pursuant to which we agreed to pay all of the principal, premium, if any, and interest on the bonds and certain other amounts to the Authority. The net proceeds from the offerings were lent by the Authority to us. We used the proceeds to expand, refurbish and maintain certain of our facilities in the Louisiana Parishes of Calcasieu and Ascension. The bonds are unsecured and rank equally in right of payment with other existing and future unsecured senior indebtedness. All domestic restricted subsidiaries that guarantee other debt of ours or of another guarantor of the Senior Notes in excess of $5.0 million are guarantors of the bonds. As of December 31, 2012, we had drawn all the proceeds from the 6 ½% bonds due 2029, 6 ¾% bonds due 2032 and 6 ½% bonds due 2035.
IKE Zone Bonds
In December 2010, the Authority completed the offering of $65.0 million of 6 ½% tax-exempt revenue bonds due November 1, 2035 under Section 704 of the Emergency Economic Stabilization Act of 2008. The bonds are subject to optional redemption by the Authority upon the direction of the Company at any time prior to November 1, 2020 for 100% of the principal plus accrued interest and a discounted "make whole" payment. On or after November 1, 2020, the bonds are subject to optional redemption by the Authority upon the direction of the Company for 100% of the principal plus accrued interest. The bonds are subject to redemption, repurchase by the holders upon a change of control or a change in or loss of the current tax status of the bonds and optional redemption by the Authority under terms substantially similar to the terms for the GO Zone Bonds.
In connection with the offering of the bonds, we entered into a loan agreement with the Authority pursuant to which we agreed to pay all of the principal, premium, if any, and interest on the bonds and certain other amounts to the Authority. The net proceeds from the offering were lent by the Authority to us. We used the proceeds to expand, refurbish and maintain certain of our facilities in the Louisiana Parish of Calcasieu. The 6 ½% IKE Zone Senior Notes Due 2035 are unsecured and rank equally in right of payment with other existing and future unsecured senior indebtedness. All domestic restricted subsidiaries that guarantee other debt of ours or of another guarantor of the Senior Notes in excess of $5.0 million are guarantors of the 6 ½% IKE Zone Senior Notes Due 2035. As of December 31, 2012, we had drawn all the proceeds from the 6 ½% IKE Zone Senior Notes Due 2035.
The indentures governing the Senior Notes contain customary covenants and events of default. Accordingly, these agreements generally impose significant operating and financial restrictions on us. These restrictions, among other things, provide limitations on incurrence of additional indebtedness, the payment of dividends, certain investments and acquisitions and sales of assets. However, the effectiveness of certain of these restrictions is currently suspended because the Senior Notes are currently rated investment grade by at least two nationally recognized credit rating agencies. The most significant of these provisions, if it were currently effective, would restrict us from incurring additional debt, except specified permitted debt (including borrowings under our credit facility), when our fixed charge coverage ratio is below 2.0:1. These limitations are subject to a number of important qualifications and exceptions, including, without limitation, an exception for the payment of our regular quarterly dividend of up to $0.20 per share (currently $0.1875 per share). If the restrictions were currently effective, distributions in excess of $100.0 million would not be allowed unless, after giving pro forma effect to the distribution, our fixed charge coverage ratio is at least 2.0:1 and such payment, together with the aggregate amount of all other distributions after January 13, 2006, is less than the sum of 50% of our consolidated net income for the period from October 1, 2003 to the end of the most recent quarter for which financial statements have been filed, plus 100% of net cash proceeds received after

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October 1, 2003 as a contribution to our common equity capital or from the issuance or sale of certain securities, plus several other adjustments.
Revenue Bonds
In December 1997, we entered into a loan agreement with a public trust established for public purposes for the benefit of the Parish of Calcasieu, Louisiana. The public trust issued $10.9 million principal amount of tax-exempt waste disposal revenue bonds in order to finance our construction of waste disposal facilities for an ethylene plant. The waste disposal revenue bonds expire in December 2027 and are subject to redemption and mandatory tender for purchase prior to maturity under certain conditions. Interest on the waste disposal revenue bonds accrues at a rate determined by a remarketing agent and is payable quarterly. The interest rate on the waste disposal revenue bonds at December 31, 2012 and 2011 was 0.30% and 0.20%, respectively.
Our ability to make payments on our indebtedness and to fund planned capital expenditures will depend on our ability to generate cash in the future, which is subject to general economic, financial, competitive, legislative, regulatory and other factors that are beyond our control. Based on our current level of operations, we believe our cash flow from operations, available cash and available borrowings under our revolving credit facility will be adequate to meet our normal operating needs for the foreseeable future.
Contractual Obligations and Commercial Commitments
In addition to long-term debt, we are required to make payments relating to various types of obligations. The following table summarizes our minimum payments as of December 31, 2012 relating to long-term debt, operating leases, pension benefits funding, post-retirement healthcare benefits, unconditional purchase obligations and interest payments for the next five years and thereafter. The amounts do not include deferred charges, liabilities for uncertain tax positions and other items classified in other liabilities in the consolidated balance sheet due to the uncertainty of the future payment schedule.
 
 
Payment Due by Period
 
 
Total
 
2013
 
2014-2015
 
2016-2017
 
Thereafter
 
 
(dollars in millions)
Contractual Obligations
 
 
 
 
 
 
 
 
 
 
Long-term debt
 
$
763.8

 
$

 
$

 
$

 
$
763.8

Operating leases
 
99.8

 
19.5

 
31.6

 
22.6

 
26.1

Pension benefits funding
 
3.3

 
2.1

 
1.2

 

 

Post-retirement healthcare benefits
 
16.4

 
1.8

 
4.0

 
4.1

 
6.5

Unconditional purchase obligations
 
299.8

 
77.2

 
78.3

 
40.7

 
103.6

Interest payments
 
758.3

 
42.4

 
84.8

 
84.8

 
546.3

Total
 
$
1,941.4

 
$
143.0

 
$
199.9

 
$
152.2

 
$
1,446.3

Other Commercial Commitments
 
 
 
 
 
 
 
 
 
 
Standby letters of credit
 
$
16.2

 
$
16.2

 
$

 
$

 
$

Long-Term Debt. Long-term debt consists of the 3.60% Notes Due 2022, 6 ½% senior notes due 2029, the 6 ¾% senior notes due 2032, the 6 ½% GO Zone Senior Notes Due 2035 and the 6 ½% IKE Zone Senior Notes Due 2035 and the tax-exempt waste disposal revenue bonds.
Operating Leases. We lease various facilities and equipment under noncancelable operating leases (primarily related to rail car leases and land) for various periods.
Pension Benefits Funding. We have noncontributory defined benefit pension plans that cover certain eligible salaried and wage employees of one subsidiary. We expect to contribute approximately $2.1 million and $1.2 million in 2013 and 2014, respectively, for plan years 2012 and 2013. Funding requirements for our defined benefit pension plans have not been determined for plan years 2014 and beyond. Due to the uncertainty of the funding, no amounts with respect to such plan years have been included in the table above. Long-term liabilities for pension benefits were $23.0 million as of December 31, 2012. See the discussion in Note 8 to the consolidated financial statements for more information.
Post-retirement Healthcare Benefits. We provide post-retirement healthcare benefits to the employees of two subsidiaries who meet certain minimum age and service requirements. See the discussion in Note 8 to the consolidated financial statements for more information.

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Unconditional Purchase Obligations. We are party to various unconditional obligations, primarily to purchase goods and services, including commitments to purchase various utilities, feedstock, nitrogen, oxygen, product storage and pipeline usage. We also have various purchase commitments for our capital projects and for materials, supplies and services incident to the ordinary conduct of business which may not be unconditional and are not reflected in the table above.
Interest Payments. Interest payments are based on interest rates in effect at December 31, 2012 and assume contractual amortization payments.
Standby Letters of Credit. This includes (1) our obligation under an $11.3 million letter of credit issued in connection with the $10.9 million tax-exempt waste disposal revenue bonds and (2) other letters of credit totaling $4.9 million issued to support obligations under our insurance programs, including workers' compensation claims and other commercial obligations.
Off-Balance Sheet Arrangements
None.
Critical Accounting Policies
Critical accounting policies are those that are important to our financial condition and require management's most difficult, subjective or complex judgments. Different amounts would be reported under different operating conditions or under alternative assumptions. We have evaluated the accounting policies used in the preparation of the accompanying consolidated financial statements and related notes and believe those policies are reasonable and appropriate.
We apply those accounting policies that we believe best reflect the underlying business and economic events, consistent with GAAP. Our more critical accounting policies include those related to revenue recognition, long-lived assets, accruals for long-term employee benefits, inventories, accounts receivable, income taxes and environmental and legal obligations. Inherent in such policies are certain key assumptions and estimates. We periodically update the estimates used in the preparation of the financial statements based on our latest assessment of the current and projected business and general economic environment. Our significant accounting policies are summarized in Note 1 to the audited consolidated financial statements appearing elsewhere in this Form 10-K. We believe the following to be our most critical accounting policies applied in the preparation of our financial statements.
Long-Lived Assets. Key estimates related to long-lived assets include useful lives, recoverability of carrying values and existence of any retirement obligations. Such estimates could be significantly modified. The carrying values of long-lived assets could be impaired by significant changes or projected changes in supply and demand fundamentals (which would have a negative impact on operating rates or margins), new technological developments, new competitors with significant raw material or other cost advantages, adverse changes associated with the U.S. and world economies, the cyclical nature of the chemical and refining industries and uncertainties associated with governmental actions.
We evaluate long-lived assets for potential impairment indicators whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable, including when negative conditions such as significant current or projected operating losses exist. Our judgments regarding the existence of impairment indicators are based on legal factors, market conditions and the operational performance of our businesses. Actual impairment losses incurred could vary significantly from amounts estimated. Long-lived assets assessed for impairment are grouped at the lowest level for which identifiable cash flows are largely independent of the cash flows of other assets and liabilities. Additionally, future events could cause us to conclude that impairment indicators exist and that associated long-lived assets of our businesses are impaired. Any resulting impairment loss could have a material adverse impact on our financial condition and results of operations.
The estimated useful lives of long-lived assets range from three to 35 years. Depreciation and amortization of these assets, including amortization of deferred turnaround costs, under the straight-line method over their estimated useful lives totaled $144.5 million, $131.4 million and $128.7 million in 2012, 2011 and 2010, respectively. If the useful lives of the assets were found to be shorter than originally estimated, depreciation charges would be accelerated.
We defer the costs of planned major maintenance activities, or turnarounds, and amortize the costs over the period until the next planned turnaround of the affected unit. In 2012, we completed a turnaround at our styrene plant in Lake Charles. In 2011, we completed a major turnaround at our Calvert City facility. Total costs deferred on these turnarounds were $16.5 million in 2012 and $8.4 million in 2011. There were no planned major maintenance activities in 2010. Amortization in 2012, 2011 and 2010 of previously deferred turnaround costs was $17.0 million, $14.7 million and $15.0 million, respectively. As of December 31, 2012, deferred turnaround costs, net of accumulated amortization, totaled $29.1 million. Expensing turnaround costs as incurred would likely result in greater variability of our quarterly operating results and would adversely affect our financial position and results of operations.

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Additional information concerning long-lived assets and related depreciation and amortization appears in Notes 5 and 6 to the audited consolidated financial statements appearing elsewhere in this Form 10-K.
Fair Value Estimates. We develop estimates of fair value to allocate the purchase price paid to acquire a business to the assets acquired and liabilities assumed in an acquisition, to assess impairment of long-lived assets, goodwill and intangible assets and to record equity securities, derivative instruments and pension plan assets. We use all available information to make these fair value determinations, including the engagement of third-party consultants. At December 31, 2012, our recorded goodwill was $30.0 million, all of which was associated with the acquisition of our Longview facilities. In addition, we record all equity securities, derivative instruments and pension plan assets at fair value. The fair value of these items is determined by quoted market prices or from observable market-based inputs. See Notes 8 and 12 to the consolidated financial statements for more information.
Long-Term Employee Benefit Costs. Our costs for long-term employee benefits, particularly pension and postretirement medical and life benefits, are incurred over long periods of time and involve many uncertainties over those periods. The net periodic benefit cost attributable to current periods is based on several assumptions about such future uncertainties and is sensitive to changes in those assumptions. It is our responsibility, often with the assistance of independent experts, to select assumptions that represent the best estimates of those uncertainties. It is also our responsibility to review those assumptions periodically and, if necessary, adjust the assumptions to reflect changes in economic or other factors.
Accounting for employee retirement plans involves estimating the cost of benefits that are to be provided in the future and attempting to match, for each employee, that estimated cost to the period worked. To accomplish this, we rely extensively on advice from actuaries, and we make assumptions about inflation, investment returns, mortality, employee turnover and discount rates that ultimately impact amounts recorded. Changes in these assumptions may result in different expense and liability amounts. Two of the more significant assumptions relate to the discount rate for measuring benefit obligations and the expected long-term rate of return on plan assets. At December 31, 2012, the projected pension benefit obligation was calculated using an assumed weighted average discount rate of 3.3%. The discount rate was determined using a benchmark pension discount curve and applying spot rates from the curve to each year of expected benefit payments to determine the appropriate discount rate. The return on asset assumption of 7.0% is based on historical asset returns, anticipated future performance of the investments and financial markets and input from our third-party independent actuary and the pension fund trustee. As a result of the strong returns on plan assets that occurred during 2012 and the funding relief provided in the Moving Ahead for Progress in the 21st Century Act, we expect funding requirements for the pension plans to decrease in 2013. Additional information on the 2013 funding requirements and key assumptions underlying these benefit costs appear in Note 8 to the audited consolidated financial statements appearing elsewhere in this Form 10-K.
Assumed healthcare trend rates do not have a significant effect on the amounts reported for the healthcare plans because benefits for participants are capped at a fixed amount.
While we believe that the amounts recorded in the consolidated financial statements appearing elsewhere in this Form 10-K related to these retirement plans are based on the best estimates and judgments available, the actual outcomes could differ from these estimates.
Allowance for Doubtful Accounts. In our determination of the allowance for doubtful accounts, and consistent with our accounting policy, we estimate the amount of accounts receivable that we believe are unlikely to be collected and we record an expense of that amount. Estimating this amount requires us to analyze the financial strength of our customers, and, in our analysis, we combine the use of historical experience, our accounts receivable aged trial balance and specific collectibility analysis. We review our allowance for doubtful accounts quarterly. Balances over 90 days past due and accounts determined by our analysis of financial strength of customers to be high risk are reviewed individually for collectibility. By its nature, such an estimate is highly subjective and it is possible that the amount of accounts receivable that we are unable to collect may be different than the amount initially estimated.
Income Taxes. We utilize the liability method of accounting for income taxes. Under the liability method, deferred tax assets or liabilities are recorded based upon temporary differences between the tax basis of assets and liabilities and their carrying values for financial reporting purposes. Deferred tax expense or benefit is the result of changes in the deferred tax assets and liabilities during the period. Valuation allowances are recorded against deferred tax assets when it is considered more likely than not that the deferred tax assets will not be realized.
Environmental and Legal Obligations. We consult with various professionals to assist us in making estimates relating to environmental costs and legal proceedings. We accrue an expense when we determine that it is probable that a liability has been incurred and the amount is reasonably estimable. While we believe that the amounts recorded in the accompanying consolidated financial statements related to these contingencies are based on the best estimates and judgments available, the

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actual outcomes could differ from our estimates. Additional information about certain legal proceedings and environmental matters appears in Note 18 to the audited consolidated financial statements appearing elsewhere in this Form 10-K.
Recent Accounting Pronouncements
See Note 1 to the audited consolidated financial statements for a full description of recent accounting pronouncements, including expected dates of adoption and estimated effects on results of operations and financial condition, which is incorporated herein by reference.
 
Item 7A. Quantitative and Qualitative Disclosures about Market Risk
Commodity Price Risk
A substantial portion of our products and raw materials are commodities whose prices fluctuate as market supply and demand fundamentals change. Accordingly, product margins and the level of our profitability tend to fluctuate with changes in the business cycle. We try to protect against such instability through various business strategies. Our strategies include ethylene product feedstock flexibility and moving downstream into the olefins and vinyls products where pricing is more stable. We use derivative instruments in certain instances to reduce price volatility risk on feedstocks and products. Based on our open derivative positions at December 31, 2012, a hypothetical $0.10 increase in the price of a gallon of ethane would have increased our income before taxes by $4.1 million, a hypothetical $0.10 increase in the price of a gallon of propane would have decreased our income before taxes by $0.8 million and a hypothetical $0.10 increase in the price of a pound of ethylene would have decreased our income before taxes by $12.0 million. Additional information concerning derivative commodity instruments appears in Notes 11 and 12 to the consolidated financial statements.
Interest Rate Risk
We are exposed to interest rate risk with respect to fixed and variable rate debt. At December 31, 2012, we had variable rate debt of $10.9 million outstanding. All of the debt outstanding under our revolving credit facility (none was outstanding at December 31, 2012) and our loan relating to the tax-exempt waste disposal revenue bonds are at variable rates. We do not currently hedge our variable interest rate debt, but we may do so in the future. The average variable interest rate for our variable rate debt of $10.9 million as of December 31, 2012 was 0.30%. A hypothetical 100 basis point increase in the average interest rate on our variable rate debt would increase our annual interest expense by approximately $0.1 million. Also, at December 31, 2012, we had $754.0 million aggregate principal amount of fixed rate debt. We are subject to the risk of higher interest cost if and when this debt is refinanced. If interest rates are 1% higher at the time of refinancing, our annual interest expense would increase by approximately $7.5 million.


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Item 8.
Financial Statements and Supplementary Data

Index to Consolidated Financial Statements

 
Page
 
 
Management's Report on Internal Control over Financial Reporting
Report of Independent Registered Public Accounting Firm
Consolidated Financial Statements:
 
Consolidated Balance Sheets as of December 31, 2012 and 2011
Consolidated Statements of Operations for the Years Ended December 31, 2012, 2011 and 2010
Consolidated Statements of Comprehensive Income for the Years Ended
   December 31, 2012, 2011 and 2010
Consolidated Statements of Changes in Stockholders' Equity for the Years Ended
   December 31, 2012, 2011 and 2010
Consolidated Statements of Cash Flows for the Years Ended December 31, 2012, 2011 and 2010
Notes to Consolidated Financial Statements
Financial Statement Schedule II—Valuation and Qualifying Accounts
Financial statement schedules not included in this Form 10-K have been omitted because they are not applicable or because the required information is shown in the financial statements or notes thereto.


MANAGEMENT'S REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING
The management of Westlake Chemical Corporation is responsible for establishing and maintaining adequate internal control over financial reporting. Westlake'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 reporting purposes in accordance with U.S. generally accepted accounting principles.
Westlake management assessed the effectiveness of the Company's internal control over financial reporting as of December 31, 2012. In making this assessment, management used the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission in Internal Control—Integrated Framework. Based on its assessment, Westlake's management has concluded that the Company's internal control over financial reporting was effective as of December 31, 2012 based on those criteria.
PricewaterhouseCoopers LLP, the independent registered public accounting firm that audited the financial statements included in this Annual Report on Form 10-K, has also audited the effectiveness of internal control over financial reporting as of December 31, 2012 as stated in their report that appears on the following page.

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
To the Board of Directors and Stockholders
of Westlake Chemical Corporation:
In our opinion, the consolidated financial statements listed in the accompanying index present fairly, in all material respects, the financial position of Westlake Chemical Corporation and its subsidiaries at December 31, 2012 and 2011, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2012 in conformity with accounting principles generally accepted in the United States of America. In addition, in our opinion, the financial statement schedule listed in the accompanying index presents fairly, in all material respects, the information set forth therein when read in conjunction with the related consolidated financial statements. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2012, based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). The Company's management is responsible for these financial statements and financial statement schedule, for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management's Report on Internal Control over Financial Reporting. Our responsibility is to express opinions on these financial statements, on the financial statement schedule, and on the Company's internal control over financial reporting based on our integrated audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements are free of material misstatement and whether effective internal control over financial reporting was maintained in all material respects. Our audits of the financial statements included examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.
A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company's internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company's assets that could have a material effect on the financial statements.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ PricewaterhouseCoopers LLP
Houston, Texas
February 22, 2013

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WESTLAKE CHEMICAL CORPORATION
CONSOLIDATED BALANCE SHEETS


 

 
December 31,

 
2012
 
2011

 
(in thousands of dollars, except
par values and share amounts)
ASSETS
 
 
 
 
Current assets
 
 
 
 
Cash and cash equivalents
 
$
790,078

 
$
825,901

Marketable securities
 
124,873

 

Accounts receivable, net
 
400,159

 
407,372

Inventories
 
399,298

 
490,777

Prepaid expenses and other current assets
 
14,700

 
12,495

Deferred income taxes
 
22,305

 
19,611

Total current assets
 
1,751,413

 
1,756,156

Property, plant and equipment, net
 
1,510,048

 
1,232,066

Equity investments
 
43,736

 
46,741

Restricted cash
 

 
96,283

Other assets, net
 
 
 
 
Intangible assets, net
 
48,292

 
49,063

Deferred charges and other assets, net
 
58,707

 
86,512

Total other assets, net
 
106,999

 
135,575

Total assets
 
$
3,412,196

 
$
3,266,821

 
 
 
 
 
LIABILITIES AND STOCKHOLDERS' EQUITY
 
 
 
 
Current liabilities
 
 
 
 
Accounts payable
 
$
217,050

 
$
227,034

Accrued liabilities
 
181,460

 
137,561

Total current liabilities
 
398,510

 
364,595

Long-term debt
 
763,761

 
764,563

Deferred income taxes
 
326,290

 
330,791

Other liabilities
 
51,379

 
50,560

Total liabilities
 
1,539,940

 
1,510,509

Commitments and contingencies (Notes 7 and 18)
 


 


Stockholders' equity
 
 
 
 
Preferred stock, $0.01 par value, 50,000,000 shares authorized; no shares
   issued and outstanding
 

 

Common stock, $0.01 par value, 150,000,000 shares authorized; 67,187,224
   and 66,601,909 shares issued at December 31, 2012 and 2011, respectively
 
672

 
666

Common stock, held in treasury, at cost; 284,493 and 69,816 shares
   at December 31, 2012 and 2011, respectively
 
(13,302
)
 
(2,518
)
Additional paid-in capital
 
496,254

 
467,796

Retained earnings
 
1,399,472

 
1,299,438

Accumulated other comprehensive loss
 
(10,840
)
 
(9,070
)
Total stockholders' equity
 
1,872,256

 
1,756,312

Total liabilities and stockholders' equity
 
$
3,412,196

 
$
3,266,821



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

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Table of Contents
WESTLAKE CHEMICAL CORPORATION
CONSOLIDATED STATEMENTS OF OPERATIONS



 
Year Ended December 31,

 
2012
 
2011
 
2010

 
(in thousands of dollars,
except share amounts and per share data)
Net sales
 
$
3,571,041

 
$
3,619,848

 
$
3,171,787

Cost of sales
 
2,834,081

 
3,060,842

 
2,689,104

Gross profit
 
736,960

 
559,006

 
482,683

Selling, general and administrative expenses
 
121,609

 
112,210

 
104,319

Income from operations
 
615,351

 
446,796

 
378,364

Other income (expense)
 
 
 
 
 
 
Interest expense
 
(43,049
)
 
(50,992
)
 
(39,875
)
Debt retirement costs
 
(7,082
)
 

 

Gain from sales of equity securities
 
16,429

 

 

Other income, net
 
3,520

 
5,628

 
4,471

Income before income taxes
 
585,169

 
401,432

 
342,960

Provision for income taxes
 
199,614

 
142,466

 
121,567

Net income
 
$
385,555

 
$
258,966

 
$
221,393

 
 
 
 
 
 
 
Earnings per common share:
 
 
 
 
 
 
Basic
 
$
5.78

 
$
3.89

 
$
3.35

Diluted
 
$
5.75

 
$
3.87

 
$
3.34

 
 
 
 
 
 
 
Weighted average shares outstanding:
 
 
 
 
 
 
Basic
 
66,289,429

 
65,927,421

 
65,472,875

Diluted
 
66,641,495

 
66,300,158

 
65,676,664

 
 
 
 
 
 
 
Dividends per common share
 
$
4.2725

 
$
0.2746

 
$
0.2420



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

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WESTLAKE CHEMICAL CORPORATION
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME


 
 
Year Ended December 31,
 
 
2012
 
2011
 
2010
 
 
(in thousands of dollars)
Net income
 
$
385,555

 
$
258,966

 
$
221,393

Other comprehensive (loss) income, net of income taxes
 
 
 
 
 
 
Pension and other post-retirement benefits liability
 
 
 
 
 
 
Pension and other post-retirement reserves
   adjustment (excluding amortization)
 
(4,301
)
 
(6,620
)