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WESTLAKE CORP - Annual Report: 2024 (Form 10-K)

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(1)    At our option, we may redeem the notes at any time on or after the specified par call date at a redemption price equal to 100% of the principal amount of the notes being redeemed plus accrued and unpaid interest.
(2)    At our option, we may redeem the notes at any time prior to the specified par call date at a redemption price equal to the greater of (i) 100% of the principal amount of the notes being redeemed plus accrued and unpaid interest and (ii) the sum of the present values of the remaining scheduled payments on the notes being redeemed that would be due if the notes matured on the specified par call date (not including any portion of such payments of interest accrued as of the redemption date), discounted to the redemption date on an annual basis at the applicable comparable government bond rate plus 30 basis points plus accrued and unpaid interest.
(3)    At our option, we may redeem the notes at any time prior to the specified par call date at a redemption price equal to the greater of (i) 100% of the principal amount of the notes being redeemed plus accrued and unpaid interest and (ii) the sum of the present values of the remaining scheduled payments on the notes being redeemed that would be due if the notes matured on the specified par call date (excluding accrued and unpaid interest to the redemption date), discounted to the redemption date on a semi-annual basis at the treasury rate plus 20 to 40 basis points plus accrued and unpaid interest.
(4)    At our option, we may redeem the notes at any time prior to the specified par call date at a redemption price equal to the greater of (i) 100% of the principal amount of the notes being redeemed plus accrued and unpaid interest and (ii) the sum of the present values of the remaining scheduled payments on the notes being redeemed (excluding accrued and unpaid interest to the redemption date), discounted to the redemption date on a semi-annual basis at the treasury rate plus 35 to 45 basis points, plus accrued and unpaid interest.
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(5)    In the event of a redemption of certain bonds (the "GO Zone Bonds") issued by the Louisiana Local Government Environmental Facility and Development Authority (the "Authority") in 2017, we will redeem notes equal in principal amount to the GO Zone Bonds to be redeemed at a redemption price equal to the redemption price of the GO Zone Bonds to be redeemed, plus accrued interest to the redemption date. The GO Zone Bonds are subject to optional redemption by the Authority upon the direction of the Company at any time on or after November 1, 2027, for 100% of the principal amount plus accrued interest to the redemption date.
(6)    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, 2024 was 3.35%.
(7)    The 2026 Term Loan has a 5-year maturity and includes a government rate subsidy. The interest rate on the 2026 Term Loan as of December 31, 2024 was 1.08%.
The holders of the 3.60% 2026 Senior Notes, the 1.625% 2029 Senior Notes, the 3.375% 2030 Senior Notes, the 3.50% 2032 tax-exempt GO Zone Refunding Senior Notes, the 2.875% 2041 Senior Notes, the 5.00% 2046 Senior Notes, the 4.375% 2047 Senior Notes, the 3.125% 2051 Senior Notes and the 3.375% 2061 Senior Notes may require us to repurchase the notes at a price equal to 101% of their principal amount, plus accrued and unpaid interest to, but not including, 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 respective indentures governing these notes).
The indenture governing the 3.60% 2026 Senior Notes, the 1.625% 2029 Senior Notes, the 3.375% 2030 Senior Notes, the 3.50% 2032 tax-exempt GO Zone Refunding Senior Notes, the 2.875% 2041 Senior Notes, the 5.00% 2046 Senior Notes, the 4.375% 2047 Senior Notes, the 3.125% 2051 Senior Notes, and the 3.375% 2061 Senior Notes contains customary events of default and covenants that, among other things and subject to certain exceptions, restrict us and certain of our subsidiaries' ability to (1) incur certain secured indebtedness, (2) engage in certain sale and leaseback transactions and (3) consolidate, merge or transfer all or substantially all of our assets.
As of December 31, 2024, we were in compliance with all of our long-term debt covenants.
Redemption of 0.875% senior notes due 2024
On August 15, 2024, the Company redeemed $300 million aggregate principal amount of its outstanding 0.875% senior notes due August 15, 2024 at a redemption price equal to 100% of the principal amount of the senior notes to be redeemed plus accrued and unpaid interest thereon.
Credit Agreement
On June 9, 2022, we entered into a new $1.5 billion revolving credit facility that is scheduled to mature on June 9, 2027 (the "Credit Agreement") and, in connection therewith, terminated our then existing revolving credit agreement. The Credit Agreement bears interest at either (a) Adjusted Term SOFR (as defined in the Credit Agreement) plus a margin ranging from 1.00% to 1.625% per annum or (b) Alternate Base Rate (as defined in the Credit Agreement) plus a margin ranging from 0.00% to 0.625% per annum, in each case depending on the credit rating of the Company. The Credit Agreement contains certain affirmative and negative covenants, including a quarterly total leverage ratio financial maintenance covenant. As of December 31, 2024, we were in compliance with the total leverage ratio financial maintenance covenant.
The Credit Agreement also contains certain events of default and, if and for so long as certain events of default have occurred and are continuing, any overdue amounts outstanding under the Credit Agreement will accrue interest at an increased rate, the lenders can terminate their commitments to lend thereunder and payments of any outstanding amounts thereunder could be accelerated by the lenders. None of our subsidiaries are required to guarantee our obligations under the Credit Agreement.
The Credit Agreement includes a $150 million sub-limit for letters of credit, and any outstanding letters of credit will be deducted from availability under the facility. The Credit Agreement also provides for a discretionary $50 million commitment for swingline loans to be provided on a same-day basis. We may also increase the size of the facility, in increments of at least $25 million, up to a maximum of $500 million, subject to certain conditions and if certain lenders agree to commit to such an increase.
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Westlake Chemical Partners LP Credit Arrangements
Our subsidiary, Westlake Chemical Finance Corporation, is the lender party to a $600 million revolving credit facility with Westlake Chemical Partners LP ("Westlake Partners") (the "MLP Revolver") that is scheduled to mature on July 12, 2027. As of December 31, 2024, outstanding borrowings under the credit facility totaled $377 million and bore interest at Secured Overnight Financing Rate, as administered by the Federal Reserve Bank of New York ("SOFR") plus the Applicable Margin plus a 0.10% credit spread adjustment. On July 12, 2022, Westlake Partners entered into the Fourth Amendment (the "MLP Revolver Amendment") to the MLP Revolver. The MLP Revolver Amendment, among other things, extended the maturity date to July 12, 2027 and provided for the replacement of LIBOR with SOFR. Borrowings under the MLP Revolver now bear interest at a variable rate of either (a) SOFR plus the Applicable Margin plus a 0.10% credit spread adjustment or, if SOFR is no longer available, (b) the Alternate Base Rate plus the Applicable Margin minus 1.0%. The Applicable Margin under the MLP Revolver varies between 1.75% and 2.75%, depending on the Partnership's Consolidated Leverage Ratio.
Our subsidiary, Westlake Polymers LLC, is the administrative agent to a $600 million revolving credit facility with Westlake Chemical OpCo LP ("OpCo") (the "OpCo Revolver") that is scheduled to mature on July 12, 2027. As of December 31, 2024, outstanding borrowings under the credit facility totaled $23 million and bore interest at SOFR plus the Applicable Margin of 1.75% plus a 0.10% credit spread adjustment. On July 12, 2022, OpCo entered into the Second Amendment (the "OpCo Revolver Amendment") to the OpCo Revolver. The OpCo Revolver Amendment, among other things, extended the maturity date to July 12, 2027 and provided for the replacement of LIBOR with SOFR. Borrowings under the OpCo Revolver now bear interest at a variable rate of either (a) SOFR plus the Applicable Margin plus a 0.10% credit spread adjustment or, if SOFR is no longer available, (b) the Alternate Base Rate plus the Applicable Margin minus 1.0%. The Applicable Margin under the OpCo Revolver is 1.75%.
We consolidate Westlake Partners and OpCo for financial reporting purposes as we have a controlling financial interest. As such, the revolving credit facilities described above between our subsidiaries and Westlake Partners and OpCo are eliminated from the financial statements upon consolidation.
Contractual and Other Obligations
The Company's material cash requirements for contractual and other obligations in the near term (next 12 months) and the long term period (2026 and thereafter) include long-term debt, interest payments, operating leases, pension benefits funding, post-retirement healthcare benefits, purchase obligations, asset retirement obligations and letters of credit.
Debt Obligations and Interest Payments. As of December 31, 2024, we had $6 million debt obligations due within the near term, and debt obligations of $4,639 million due over the long-term period. At December 31, 2024, long-term debt related interest expense of $156 million was due within the near term, and related interest expense of $2,543 million was due over the long-term period. Maturities of our debt consist of $6 million in 2025, $751 million in 2026, $11 million in 2027 and $727 million in 2029. There are no other scheduled maturities of debt in 2025 through 2029. See Note 10, "Long-Term Debt," in the Notes to Consolidated Financial Statements in Item 8 of this Form 10-K for further information on our debt obligations and the expected timing of future principal and interest payments.
Operating Leases. As of December 31, 2024, there was $158 million in operating lease obligations due within the near term, and $881 million due over the long-term period. See Note 6, "Leases," in the Notes to Consolidated Financial Statements in Item 8 of this Form 10-K for further detail of our obligations and the timing of expected future payments.
Pension Benefits Funding and Post-retirement Healthcare Benefits. Pension benefits funding obligations due within the near term were $10 million while post-retirement healthcare benefit payment obligations due within the near term were $7 million as of December 31, 2024. As of December 31, 2024, we had $125 million and $49 million of pension benefit funding and post-retirement healthcare benefit obligations due over the long-term period, respectively. The estimate of the timing of future payments under our defined benefit pension plans which cover certain eligible employees in the United States and non-U.S. countries and our post-retirement healthcare benefits to the employees of certain subsidiaries who meet certain minimum age and service requirements involves the use of certain assumptions, including retirement ages and payout periods. See Note 13, "Employee Benefits," in the Notes to Consolidated Financial Statements in Item 8 of this Form 10-K for further information on our obligations and the timing of expected future payments.
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Purchase Obligations. Purchase obligations include agreements to purchase goods and services that are enforceable and legally binding and that specify all significant terms, including a minimum quantity and price. We are party to various obligations to purchase goods and services, including commitments to purchase various feedstock, utilities, nitrogen, oxygen, product storage, pipeline usage and logistic support, in each case in the ordinary course of our business, as well as various purchase commitments for our capital projects. As of December 31, 2024, we had $2,592 million of enforceable and legally binding purchase commitments due within the near term, and $5,509 million due over the long-term period.
Asset Retirement Obligations. As of December 31, 2024, we had $38 million asset retirement obligations due within the near term, and $34 million due over the long-term period. Asset retirement obligations includes the estimated costs and timing of payments to satisfy our recognized asset retirement obligations. We recognize asset retirement obligations in the period in which the liability becomes probable and reasonably estimable. Initially, the asset retirement obligation is recorded at fair value and capitalized as a component of the carrying value of the long-lived asset to which the obligation relates. See Note 1, "Description of Business and Significant Accounting Policies," in the Notes to Consolidated Financial Statements in Item 8 of this Form 10-K for further detail of our asset retirement obligations.
Letters of Credit. As of December 31, 2024, we had $45 million standby letters of credit, made in the ordinary course of business, maturing within the near term, and no standby letters of credit maturing over the long-term period. We had no letters of credit outstanding under our Credit Agreement.
Critical Accounting Policies and Estimates
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. Our significant accounting policies are summarized in Note 1 to the consolidated financial statements appearing elsewhere in this Form 10-K.
Critical accounting estimates are those estimates made in accordance with the accounting principles generally accepted in the United States ("GAAP") that involve a significant level of estimation uncertainty and have had or are reasonably likely to have a material impact on our financial condition or results of operation. Our more critical accounting estimates include those related to business combinations, fair values, long-lived assets, goodwill, accruals for long-term employee benefits, accounts receivable, income taxes and environmental and legal obligations. Inherent in such estimates are certain key assumptions. 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. We believe the following to be our most critical accounting estimates required for the preparation of our financial statements.
Business Combinations and Intangible Assets Including Goodwill. We account for business combinations using the acquisition method of accounting, and accordingly, the assets and liabilities of the acquired business are recorded at their fair values at the date of acquisition. The excess of the purchase price over the estimated fair value is recorded as goodwill. Any changes in the estimated fair values of the net assets recorded for acquisitions prior to the finalization of more detailed analysis, but not to exceed one year from the date of acquisition, will change the amount of the purchase price allocable to goodwill. Any subsequent changes to any purchase price allocations that are material to our consolidated financial results will be adjusted in the same period's financial statements, including the effect on earnings of changes in depreciation, amortization or other income effects, if any, as a result of the change to the provisional amounts, calculated as if the accounting had been completed at the acquisition date. All acquisition costs are expensed as incurred and in-process research and development costs are recorded at fair value as an indefinite-lived intangible asset and assessed for impairment thereafter until completion, at which point the asset is amortized over its expected useful life. Separately recognized transactions associated with business combinations are generally expensed subsequent to the acquisition date. The application of business combination accounting requires the use of significant estimates and assumptions. Our estimates of fair value are based upon assumptions we believe to be reasonable, but which are inherently uncertain and unpredictable. The fair value of the customer relationships acquired are estimated by management through a discounted cash flow model using the multi-period excess earnings methodology, which involves the use of significant estimates and assumptions related to revenue growth rates, operating margins, discount rates, and customer attrition rates, among other items. The fair value of the technology and trade names acquired is estimated by management through a discounted cash flow model using the relief from royalty methodology, which involves the use of significant estimates and assumptions related to revenue growth rates, and discount rates. The results of operations of acquired businesses are included in our consolidated financial statements from the acquisition date.
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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 and goodwill and to record marketable securities and pension plan assets. We use all available information to make these fair value determinations, including the engagement of third-party consultants. In addition, we record all pension plan assets and certain marketable securities at fair value. The fair value of these items is determined by quoted market prices or from observable market-based inputs. See Note 15 to the consolidated financial statements appearing elsewhere in this Form 10-K for more information.
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 could 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 United States and global 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 are assessed for impairment by asset group, the lowest level for which identifiable cash flows are largely independent of the cash flows of other groups of 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.
During the fourth quarter of 2023, the Westlake Epoxy business's sales volumes and prices, specifically base epoxy resins in Europe, continued to deteriorate. These lower sales volumes and prices were primarily driven by record exports out of Asia into Europe and North America. In addition, Westlake Epoxy operations in Europe have experienced sustained high energy and power costs. These factors negatively impacted Westlake Epoxy financial results during 2023. The Company identified these developments, along with management's outlook for the Westlake Epoxy business over the foreseeable future, as impairment indicators during the fourth quarter of 2023. Recoverability tests were performed for each of Westlake Epoxy's asset groups to compare the carrying amounts of assets to the net undiscounted cash flow projections of the asset group generated from its use and eventual disposition. The undiscounted cash flow projections were based on historical results, estimates made by management of future market conditions, current and future strategic and operational plans and future financial performance projected through the remaining useful life of the primary asset in the asset group. Based on the recoverability tests, we determined that the carrying amount of the primary assets of Westlake Epoxy's Netherlands asset group is not recoverable, and as such, an impairment loss was recorded in fourth quarter of 2023 to reduce the carrying amount of the asset group to its fair value. See Note 5 in the notes to the consolidated financial statements for further details.
The estimated useful lives of long-lived assets range from one to 40 years. Depreciation and amortization of these assets, including amortization of deferred turnaround costs, under the straight-line method over their estimated useful lives totaled $1,114 million, $1,097 million and $1,056 million in 2024, 2023 and 2022, respectively. If the useful lives of the assets were found to be shorter than originally estimated, depreciation or amortization 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. Total costs deferred on turnarounds were $114 million, $179 million and $178 million in 2024, 2023 and 2022, respectively. As of December 31, 2024, deferred turnaround costs, net of accumulated amortization, totaled $352 million. Amortization in 2024, 2023 and 2022 of deferred turnaround costs was $153 million, $137 million and $80 million, respectively. 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. We commenced the next planned maintenance turnaround at our Petro 1 ethylene facility in the first quarter of 2025.
Additional information concerning long-lived assets and related depreciation and amortization appears in Notes 5 and 7 to the consolidated financial statements appearing elsewhere in this Form 10-K.
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Goodwill. At December 31, 2024, our recorded goodwill was $2,031 million. Goodwill is evaluated for impairment when events or changes in circumstances indicate the fair value of a reporting unit with goodwill has been reduced below its carrying amount, and otherwise at least annually. We perform our annual impairment assessment for both the Performance and Essential Materials and Housing and Infrastructure Products reporting units in the fourth quarter each year. We may elect to perform an optional qualitative assessment to determine whether a quantitative impairment analysis is required. The qualitative assessment considers factors such as macroeconomic conditions, industry and market considerations, cost factors related to raw materials and labor, current and projected financial performance, changes in management or strategy, and market capitalization. Alternatively, we may unconditionally elect to bypass the qualitative assessment and perform a quantitative goodwill impairment assessment in any period.
We performed the quantitative assessment for each of our reporting units within both of our segments during the fourth quarter of 2024. The quantitative analysis compares a reporting unit's fair value to its carrying amount to determine whether goodwill is impaired. The fair values of the reporting units are calculated using both a discounted cash flow methodology and a market value methodology. The discounted cash flow projections are based on a forecast to reflect the cyclicality of the business. The forecast is based on historical results, estimates by management of future market conditions, current and future strategic and operational plans and future financial performance. Significant assumptions used in the discounted cash flow projection include projected sales volumes based on production capacities, future sales prices, EBITDA margin, inclusive of feedstock, energy and power costs and capital expenditures. The future cash flows are discounted to present value using an applicable discount rate. The significant assumptions used in determining the fair value of the reporting unit using the market value methodology include the determination of appropriate market comparables and the estimated multiples of EBITDA a willing buyer is likely to pay. Based on the quantitative tests performed during the fourth quarter of 2024, the fair value of each of the reporting units with goodwill were substantially in excess of the carrying amounts. See Note 7 in the notes to the consolidated financial statements for further details. For all reporting units with goodwill, even if the fair values of the reporting units decreased by 10% from the fair values determined for the quantitative tests, the carrying amounts of the reporting units would not have exceeded their fair values. See Item 1A, "Risk Factors—If our goodwill or other long-lived assets become impaired in the future, we may be required to record non-cash charges to earnings, which could be significant."
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. One of the more significant assumptions relates to the discount rate for measuring benefit obligations. At December 31, 2024, the projected pension benefit obligations for U.S. and non-U.S. plans were calculated using assumed weighted average discount rates of 5.5% and 3.5%, respectively. The discount rates were 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. As a result of the funding relief provided by the enactment of the Bipartisan Budget Act of 2015, no minimum funding requirements are expected during 2025 for the U.S. pension plans. Additional information on the 2025 funding requirements and key assumptions underlying these benefit costs appear in Note 13 to the consolidated financial statements appearing elsewhere in this Form 10-K.
The following table reflects the sensitivity of the benefit obligation of our pension plans to changes in the actuarial assumptions:
2024
U.S. PlansNon-U.S. Plans
(In millions of dollars)
Projected benefit obligation, end of year$464 $554 
Discount rate increases by 100 basis points(36)(72)
Discount rate decreases by 100 basis points42 90 
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A one-percentage point increase or decrease in assumed healthcare trend rates would not have a significant effect on the amounts reported for the healthcare plans.
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.
Income Taxes. We utilize the balance sheet method of accounting for deferred income taxes. Under this 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. Additional information on income taxes appears in Note 16 to the consolidated financial statements appearing elsewhere in this Form 10-K.
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 actual outcomes could differ from our estimates. Additional information about certain legal proceedings and environmental matters appears in Note 21 to the consolidated financial statements appearing elsewhere in this Form 10-K.
Asset Retirement Obligations. We recognize asset retirement obligations in the period in which the liability becomes probable and reasonably estimable. Initially, the asset retirement obligation is recorded at fair value and capitalized as a component of the carrying value of the long-lived asset to which the obligation relates. The liability is recorded at its future value each period, and the capitalized cost is depreciated over the estimated useful life of the related asset. Upon settlement of the liability, a gain or loss is recorded. We have conditional asset retirement obligations for the removal and disposal of hazardous materials from certain of our manufacturing facilities. Additional information on asset retirement obligations appears in Note 1, under Asset Retirement Obligations, to the consolidated financial statements appearing elsewhere in this Form 10-K.
We also have conditional asset retirement obligations that have not been recognized because the fair values of the conditional legal obligations cannot be measured due to the indeterminate settlement date of the obligations. Settlements of the unrecognized conditional asset retirement obligations are not expected to have a material adverse effect on our financial condition, results of operations or cash flows in any individual reporting period.
Recent Accounting Pronouncements
See Note 1 to the consolidated financial statements included in Item 8 of this Form 10-K for a full description of recent accounting pronouncements, including expected date of adoption and estimated effect on results of operations and financial condition.
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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 our other products where pricing is more stable. We use derivative instruments (including commodity swaps, futures, forwards and options) in certain instances to reduce price volatility risk on feedstocks and products.
Based on our open derivative positions at December 31, 2024, a hypothetical $0.10 increase in the price of a gallon of ethane and a hypothetical $0.10 increase in the price of a million British thermal units of natural gas would not have a material impact on our income before income taxes.
Interest Rate Risk
We are exposed to interest rate risk with respect to fixed and variable rate debt. At December 31, 2024, we had $4,627 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 were 1.0% higher at the time of refinancing, our annual interest expense would increase by approximately $46 million. Also, at December 31, 2024, we had $18 million principal amount of variable rate debt outstanding, which represents the 2026 term loans due 2026 and the tax-exempt waste disposal revenue bonds due 2027. We do not currently hedge our variable interest rate debt, but we may do so in the future. The weighted average variable interest rate for our variable rate debt of $18 million as of December 31, 2024 was 2.46%. A hypothetical 100 basis point increase in the average interest rate on our variable rate debt would not result in a material change in the interest expense.
Secured Overnight Financing Rate ("SOFR") is used as a reference rate for borrowings under our revolving line of credit. We did not have any SOFR-based borrowings outstanding at December 31, 2024.
Foreign Currency Exchange Rate Risk
We are exposed to foreign currency exchange rate risk associated with our international operations. However, the effect of fluctuations in foreign currency exchange rates caused by our international operations has not had a material impact on our overall operating results. We may engage in activities to mitigate our exposure to foreign currency exchange risk in certain instances through the use of currency exchange derivative instruments, including forward exchange contracts, cross-currency swaps or spot purchases. A forward exchange contract obligates us to exchange predetermined amounts of specified currencies at a stated exchange rate on a stated date. A cross-currency swap obligates us to make periodic payments in the local currency and receive periodic payments in our functional currency based on the notional amount of the instrument. In January 2018, we entered into foreign exchange hedging contracts designated as net investment hedges with an aggregate notional value of €220 million designed to reduce the volatility in stockholders' equity from changes in currency exchange rates associated with our net investments in foreign operations. In July 2019, we terminated a portion of the foreign exchange hedging contract with a notional value of €70 million. The notional value of the remaining net investment hedges was €150 million at December 31, 2024. The arrangement is scheduled to settle in 2026.
In July 2019, we completed the registered public offering of €700 million aggregate principal amount of the 1.625% 2029 Senior Notes. We designated this euro-denominated debt as a non-derivative net investment hedge of a portion of our net investments in euro functional-currency denominated subsidiaries to offset foreign currency fluctuations.
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Item 8. Financial Statements and Supplementary Data


Index to Consolidated Financial Statements
Page
Consolidated Financial Statements:
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.
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MANAGEMENT'S REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING
The management of Westlake 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 purposes in accordance with generally accepted accounting principles.
Westlake management assessed the effectiveness of the Company's internal control over financial reporting as of December 31, 2024. 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 (2013). Based on its assessment, Westlake's management has concluded that the Company's internal control over financial reporting was effective as of December 31, 2024 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, 2024 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 Corporation

Opinions on the Financial Statements and Internal Control over Financial Reporting

We have audited the accompanying consolidated balance sheets of Westlake Corporation and its subsidiaries (the "Company") as of December 31, 2024 and 2023, and the related consolidated statements of operations, of comprehensive income, of changes in stockholders' equity and of cash flows for each of the three years in the period ended December 31, 2024, including the related notes (collectively referred to as the "consolidated financial statements"). We also have audited the Company's internal control over financial reporting as of December 31, 2024, based on criteria established in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 2024 and 2023, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2024 in conformity with accounting principles generally accepted in the United States of America. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2024, based on criteria established in Internal Control—Integrated Framework (2013) issued by the COSO.

Basis for Opinions

The Company's management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in Management's Report on Internal Control over Financial Reporting appearing under Item 8. Our responsibility is to express opinions on the Company's consolidated financial statements and on the Company's internal control over financial reporting based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects.

Our audits of the consolidated financial statements included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.

Definition and Limitations of Internal Control over Financial Reporting

A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally 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.

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

Critical Audit Matters

The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that (i) relates to accounts or disclosures that are material to the consolidated financial statements and (ii) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Goodwill Impairment Assessment—North American Chlorovinyls Reporting Unit

As described in Notes 1 and 7 to the consolidated financial statements, the Company's goodwill balance was $ million as of December 31, 2024, of which a portion relates to the North American Chlorovinyls reporting unit. Management tests goodwill for impairment at least annually, or when events or changes in circumstances indicate the fair value of a reporting unit with goodwill has been reduced below its carrying amount. The fair values of the reporting units, including the North American Chlorovinyls reporting unit, were determined using both a discounted cash flow methodology and a market value methodology. Significant assumptions used in the discounted cash flow projection include projected sales volumes based on production capacities, future sales prices, net income before interest expense, income taxes, depreciation and amortization ("EBITDA") margin, inclusive of feedstock, energy and power costs, capital expenditures and the discount rate. Significant assumptions used in determining the fair value of the reporting units using the market value methodology included the determination of appropriate market comparables and the estimated multiples of EBITDA a willing buyer is likely to pay.

The principal considerations for our determination that performing procedures relating to the goodwill impairment assessment of the North American Chlorovinyls reporting unit is a critical audit matter are (i) the significant judgment by management when developing the fair value estimate of the reporting unit; (ii) a high degree of auditor judgment, subjectivity, and effort in performing procedures and evaluating management's significant assumptions related to future sales prices and discount rate; and (iii) the audit effort involved the use of professionals with specialized skill and knowledge.

Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the consolidated financial statements. These procedures included testing the effectiveness of controls relating to management's goodwill impairment assessment, including controls over the valuation of the North American Chlorovinyls reporting unit. These procedures also included, among others (i) testing management's process for developing the fair value estimate; (ii) evaluating the appropriateness of the discounted cash flow and market value methodologies used by management; (iii) testing the completeness and accuracy of underlying data used in the methodologies; and (iv) evaluating the reasonableness of the significant assumptions used by management related to future sales prices and discount rate. Evaluating management's assumptions related to future sales prices involved evaluating whether the assumptions used by management were reasonable considering (i) the current and past performance of the reporting unit; (ii) the consistency with external market and industry data; and (iii) whether the assumptions were consistent with evidence obtained in other areas of the audit. Professionals with specialized skill and knowledge were used to assist in evaluating (i) the appropriateness of the discounted cash flow and market value methodologies and (ii) the reasonableness of the discount rate assumption.

/s/
February 25, 2025

We have served as the Company's auditor since 1986, which includes periods before the Company became subject to SEC reporting requirements.
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WESTLAKE CORPORATION
CONSOLIDATED BALANCE SHEETS

December 31,
20242023
(in millions of dollars, except
par values and share amounts)
ASSETS
Current assets
Cash and cash equivalents$ $ 
Accounts receivable, net  
Inventories  
Prepaid expenses and other current assets  
Total current assets  
Property, plant and equipment, net  
Operating lease right-of-use assets  
Goodwill  
Customer relationships, net  
Other intangible assets, net  
Equity method investments  
Other assets, net  
Total assets$ $ 
LIABILITIES AND EQUITY
Current liabilities
Accounts payable$ $ 
Accrued and other liabilities  
Current portion of long-term debt, net  
Total current liabilities  
Long-term debt, net  
Deferred income taxes  
Pension and other post-retirement benefits  
Operating lease liabilities  
Other liabilities  
Total liabilities  
Commitments and contingencies (Note 21)
Stockholders' equity
Preferred stock, $ par value, shares authorized; shares
issued and outstanding
  
Common stock, $ par value, shares authorized; and
shares issued at December 31, 2024 and 2023, respectively
  
Common stock, held in treasury, at cost; and shares
at December 31, 2024 and 2023, respectively
()()
Additional paid-in capital  
Retained earnings  
Accumulated other comprehensive loss()()
Total Westlake Corporation stockholders' equity  
Noncontrolling interests  
Total equity  
Total liabilities and equity$ $ 
The accompanying notes are an integral part of these consolidated financial statements.
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WESTLAKE CORPORATION
CONSOLIDATED STATEMENTS OF OPERATIONS

Year Ended December 31,
202420232022
(in millions of dollars,
except per share data and share amounts)
Net sales$ $ $ 
Cost of sales   
Gross profit   
Selling, general and administrative expenses   
Impairment of goodwill and long-lived assets
   
Amortization of intangibles   
Restructuring, transaction and integration-related costs   
Income from operations   
Other income (expense)
Interest expense()()()
Other income, net   
Income before income taxes   
Provision for income taxes
   
Net income   
Net income attributable to noncontrolling interests   
Net income attributable to Westlake Corporation$ $ $ 
Earnings per common share attributable to Westlake Corporation:
Basic$ $ $ 
Diluted$ $ $ 
Weighted average common shares outstanding:
Basic   
Diluted   
The accompanying notes are an integral part of these consolidated financial statements.
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WESTLAKE CORPORATION
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

Year Ended December 31,
202420232022
(in millions of dollars)
Net income$ $ $ 
Other comprehensive income (loss), net of income taxes
Pension and other post-retirement benefits
Pension and other post-retirement benefits reserves adjustment () 
Income tax benefit (provision) on pension and other post-retirement benefits ()() 
Foreign currency translation adjustments
Foreign currency translation() ()
Income tax benefit (provision) on foreign currency translation() ()
Other comprehensive loss, net of income taxes
()()()
Comprehensive income   
Comprehensive income attributable to noncontrolling interests,
net of tax of $, $ and $ for 2024, 2023 and 2022, respectively
   
Comprehensive income attributable to Westlake Corporation$ $ $ 
The accompanying notes are an integral part of these consolidated financial statements.

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WESTLAKE CORPORATION
CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY

Common StockCommon Stock,
Held in Treasury
Number of
Shares
AmountNumber of
Shares
At CostAdditional
Paid-in
Capital
Retained
Earnings
Accumulated Other Comprehensive
Income (Loss)
Noncontrolling InterestsTotal
(in millions of dollars, except share amounts)
Balances at December 31, 2021 $  $()$ $ $()$ $ 
Net income— — — — —  —   
Other comprehensive loss
— — — — — — ()()()
Common stock repurchased
— —  ()— — — — ()
Shares issued—stock-based compensation
— — () ()— — —  
Stock-based compensation— — — —  — — —  
Dividends declared— — — — — ()— — ()
Distributions to noncontrolling interests
— — — — — — — ()()
Noncontrolling interests— — — —  ()— ()()
Balances at December 31, 2022 $  $()$ $ $()$ $ 
Net income— — — — —  —   
Other comprehensive loss
— — — — — — () ()
Common stock repurchased
— —  ()— — — — ()
Shares issued—stock-based compensation
— — () ()— — —  
Stock-based compensation— — — —  — — —  
Dividends declared— — — — — ()— — ()
Distributions to noncontrolling interests
— — — — — — — ()()
Balances at December 31, 2023 $  $()$ $ $()$ $ 
Net income— — — — —  —   
Other comprehensive loss
— — — — — — ()()()
Common stock repurchased
— —  ()— — — — ()
Shares issued—stock-based compensation
— — () ()— — —  
Stock-based compensation— — — —  — — —  
Dividends declared— — — — — ()— — ()
Distributions to noncontrolling interests
— — — — — — — ()()
Balances at December 31, 2024 $  $()$ $ $()$ $ 
The accompanying notes are an integral part of these consolidated financial statements.
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WESTLAKE CORPORATION
CONSOLIDATED STATEMENTS OF CASH FLOWS
Year Ended December 31,
202420232022
(in millions of dollars)
Cash flows from operating activities
Net income$ $ $ 
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization   
Stock-based compensation expense   
Loss from disposition and write-off of property, plant and equipment   
Impairment of goodwill and long-lived assets
   
Deferred income taxes()()()
Other (gains) losses, net
()() 
Changes in operating assets and liabilities, net of effect of business acquisitions
Accounts receivable   
Inventories() ()
Prepaid expenses and other current assets()() 
Accounts payable()()()
Accrued and other liabilities()  
Other, net()()()
Net cash provided by operating activities   
Cash flows from investing activities
Acquisition of businesses, net of cash acquired  ()
Additions to investments in unconsolidated subsidiaries()()()
Additions to property, plant and equipment()()()
Other, net   
Net cash used for investing activities()()()
Cash flows from financing activities
Distributions to noncontrolling interests()()()
Dividends paid()()()
Proceeds from exercise of stock options
   
Repayment of senior notes
() ()
Repurchase of common stock for treasury()()()
Other, net  ()
Net cash used for financing activities
()()()
Effect of exchange rate changes on cash, cash equivalents and restricted cash
() ()
Net increase (decrease) in cash, cash equivalents and restricted cash
()  
Cash, cash equivalents and restricted cash at beginning of the year   
Cash, cash equivalents and restricted cash at end of the year$ $ $ 
The accompanying notes are an integral part of these consolidated financial statements.
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WESTLAKE CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(in millions of dollars, except share amounts and per share data)


1.
ethylene production facilities at the Company's Lake Charles, Louisiana site, ethylene production facility at the Company's Calvert City, Kentucky site and a 200-mile common carrier ethylene pipeline that runs from Mont Belvieu, Texas to the Company's Longview, Texas site. As of December 31, 2024, the Company held a % limited partner interest in OpCo and a controlling interest in Westlake Partners. The operations of Westlake Partners are consolidated in the Company's financial statements.% interest in RS Cogen.
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WESTLAKE CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
, $ and $ for the years ended December 31, 2024, 2023 and 2022, respectively. Repair and maintenance costs are charged to operations as incurred. Gains and losses on the disposition or retirement of fixed assets are reflected in the consolidated statement of operations when the assets are sold or retired.Plant and equipment
-
Other
-
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WESTLAKE CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
. Deferred turnaround costs are presented as a component of other assets, net. The cash outflows related to these costs are included in operating activities in the consolidated statement of cash flows.
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WESTLAKE CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
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WESTLAKE CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
and $ of asset retirement obligations recorded as accrued and other liabilities and other liabilities, respectively. As of December 31, 2023, the Company had $ asset retirement obligations recorded as accrued and other liabilities and had $ of asset retirement obligations recorded as other liabilities.
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WESTLAKE CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
 $ $ 
Estimated fair value of warranty liability assumed in acquisition
   Warranty provisions   Warranty claims paid()()()
Ending balance, December 31,
$ $ $ 
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WESTLAKE CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
2.
and $ of held-to-maturity securities with original maturities of three months or less, primarily consisting of corporate debt securities, classified as cash equivalents at December 31, 2024 and December 31, 2023, respectively. The Company's investments in held-to-maturity securities were held at amortized cost, which approximates fair value.
Restricted Cash and Cash Equivalents
The Company had restricted cash and cash equivalents of $ and $ at December 31, 2024 and 2023, respectively. The Company's restricted cash and cash equivalents are primarily related to balances that are restricted for payment of distributions to certain of the Company's current and former employees and are reflected primarily in other assets, net in the consolidated balance sheets.
3.
 $ Related parties  Allowance for credit losses()()  Federal and state taxes  Other  Accounts receivable, net$ $ 
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WESTLAKE CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
4.
 $ Feedstock, additives, chemicals and other raw materials  Materials and supplies  Inventories$ $ 
5.
 $ Buildings and improvements  Plant and equipment  Other    Less: Accumulated depreciation    Construction in progress  Property, plant and equipment, net$ $ 
Depreciation expense on property, plant and equipment of $, $ and $ is included primarily in cost of sales in the consolidated statements of operations for the years ended December 31, 2024, 2023 and 2022, respectively.
Westlake Epoxy
During the fourth quarter of 2023, the Westlake Epoxy business's sales volumes and prices, specifically base epoxy resins in Europe, continued to deteriorate primarily driven by record exports out of Asia into Europe and North America and sustained high energy and power costs in Europe. The Company identified these developments, along with management's outlook for the Westlake Epoxy business over the foreseeable future, as impairment indicators during the fourth quarter of 2023. The Company performed a quantitative impairment analysis of Westlake Epoxy's long-lived assets along with the annual goodwill impairment assessment during the fourth quarter of 2023.
Long-Lived Assets Impairment in 2023
Recoverability tests were performed for each of Westlake Epoxy's asset groups in 2023 to compare the carrying amounts to the net undiscounted cash flow projections of the respective asset groups. Based on the recoverability tests performed, the Company determined that the carrying amount of the primary assets of the Westlake Epoxy Netherlands asset group was not recoverable. The fair value of the asset group was calculated using a discounted cash flow methodology and a non-cash impairment charge of $, related to the Company's base epoxy resin business in the Netherlands, was recognized within the Performance and Essential Materials segment to reduce the carrying amount of the asset group to its fair value. The long-lived assets impairment in 2023 within the Westlake Epoxy Netherlands asset group consists of non-cash charges of $ in property, plant and equipment, $ in operating lease right-of-use assets, $ in customer relationships, $ in other intangible assets, and $ in other assets. The long-lived assets impairment charge was reported in impairment of goodwill and long-lived assets on the 2023 consolidated statements of operations.
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WESTLAKE CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
6.
 $ Accrued and other liabilities$ $ Operating lease liabilities  
Total operating lease liabilities
$ $ Weighted Average Remaining Term (in years)Weighted Average Lease Discount Rate % %
The Company's operating lease cost is comprised of payments related to operating leases recorded in the consolidated balance sheet and short-term rental payments for leases that are not recorded in the consolidated balance sheet. Variable operating lease cost was not material to the consolidated statements of operations for the years ended December 31, 2024, 2023, and 2022.
 $ $ Short-term lease cost   
Total operating lease cost
$ $ $ 
_____________________________
(1)Includes fixed lease payments for operating leases recorded in the consolidated balance sheet.
 
2026
 
2027
 
2028
 
2029
 Thereafter 
Total lease payments
 
Less: imputed interest
()
Present value of lease liabilities
$ 
Related Party Leases
The Company leases certain assets under operating leases with related parties. Right-of-use assets and the associated operating lease liabilities for related party operating leases were approximately $ and $ as of December 31, 2024 and December 31, 2023, respectively. The Company recognized operating lease cost for fixed lease payments to related parties of $ and $ for the years ended December 31, 2024 and 2023, respectively.
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WESTLAKE CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
7.
 $ $ Measurement period adjustment   
Impairment of goodwill
() ()Effects of changes in foreign exchange rates   Balance at December 31, 2023   Less:
Less:
Credit Agreement
On June 9, 2022, the Company entered into a new $ revolving credit facility that is scheduled to mature on June 9, 2027 (the "Credit Agreement") and, in connection therewith, terminated the Company's then existing revolving credit agreement. The Credit Agreement bears interest at either (a) Adjusted Term SOFR (as defined in the Credit Agreement) plus a margin ranging from % to % per annum or (b) Alternate Base Rate (as defined in the Credit Agreement) plus a margin ranging from % to % per annum, in each case depending on the credit rating of the Company. The Credit Agreement contains certain affirmative and negative covenants, including a quarterly total leverage ratio financial maintenance covenant. As of December 31, 2024, the Company was in compliance with the total leverage ratio financial maintenance covenant. The Credit Agreement also contains certain events of default and, if and for so long as certain events of default have occurred and are continuing, any overdue amounts outstanding under the Credit Agreement will accrue interest at an increased rate, the lenders can terminate their commitments to lend thereunder and payments of any outstanding amounts thereunder could be accelerated by the lenders. None of the Company's subsidiaries are required to guarantee the obligations of the Company under the Credit Agreement.
The Credit Agreement includes a $ sub-limit for letters of credit, and any outstanding letters of credit will be deducted from availability under the facility. The Credit Agreement also provides for a discretionary $ commitment for swingline loans to be provided on a same-day basis. The Company may also increase the size of the facility, in increments of at least $, up to a maximum of $, subject to certain conditions and if certain lenders agree to commit to such an increase.
As of December 31, 2024, the Company had borrowings and no letters of credit outstanding, and had borrowing availability of $, under the Credit Agreement.
Redemption of 0.875% Senior Notes due 2024
On August 15, 2024, the Company redeemed $ aggregate principal amount of its outstanding % senior notes due August 15, 2024 at a redemption price equal to % of the principal amount of the senior notes to be redeemed plus accrued and unpaid interest thereon.
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WESTLAKE CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
aggregate principal amount of the % 2026 Senior Notes and $ aggregate principal amount of the % 2046 Senior Notes. In March 2017, the Company commenced registered exchange offers to exchange the % 2026 Senior Notes and the % 2046 Senior Notes for new notes that are identical in all material respects to the % 2026 Senior Notes and the % 2046 Senior Notes, except that the offer and issuance of the new Securities and Exchange Commission-registered notes have been registered under the Securities Act of 1933, as amended (the "Securities Act"). The exchange offers expired on April 24, 2017, and approximately % of the % 2026 Senior Notes and % of the % 2046 Senior Notes were exchanged. The % 2026 Senior Notes that were not exchanged in the % 2026 Senior Notes exchange offer have not been registered under the Securities Act or any state securities laws and may not be offered or sold in the U.S. absent registration or an applicable exemption from registration requirements or a transaction not subject to the registration requirements of the Securities Act or any state securities law.
Revenue Bonds
In December 1997, the Company 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 $ principal amount of tax-exempt waste disposal revenue bonds in order to finance the Company's 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. The interest rate on the waste disposal revenue bonds at December 31, 2024 and 2023 was % and %, respectively.
1.625% Senior Notes due 2029
On July 17, 2019, the Company completed the registered public offering of € million aggregate principal amount of the % 2029 Senior Notes. The Company received approximately $ of net proceeds from the offering. The % 2029 Senior Notes accrue interest from July 17, 2019 at a rate of % per annum, payable annually in arrears on July 17 of each year, beginning July 17, 2020. The Company may optionally redeem the % 2029 Senior Notes in accordance with the terms of the % 2029 Senior Notes. The Company designated this euro-denominated debt as a non-derivative net investment hedge of a portion of the Company's net investments in euro functional-currency denominated subsidiaries to offset foreign currency fluctuations.
3.375% Senior Notes due 2030
On June 12, 2020, the Company completed the registered public offering of $ aggregate principal amount of the % 2030 Senior Notes. There is no sinking fund and no scheduled amortization of the % 2030 Senior Notes prior to maturity. The % 2030 Senior Notes accrue interest from June 12, 2020 at a rate of % per annum, payable semi-annually in arrears on June 15 and December 15 of each year, beginning December 15, 2020. The Company may optionally redeem the % 2030 Senior Notes in accordance with the terms of the % 2030 Senior Notes.
3.50% 2032 GO Zone Refunding Bonds
In November 2017, the Louisiana Local Government Environmental Facility and Development Authority (the "Authority") completed the remarketing of $ aggregate principal amount of % tax-exempt revenue refunding bonds due November 1, 2032 (the "% 2032 GO Zone Bonds"), the net proceeds of which were used to redeem $ aggregate principal amount of the Authority's 6 ¾% tax-exempt revenue bonds due November 1, 2032 issued by the Authority under the GO Zone Act in December 2007. In connection with the remarketing of the % 2032 GO Zone Bonds, the Company issued $ aggregate principal amount of the % 2032 GO Zone Refunding Senior Notes. The % 2032 GO Zone Bonds are subject to optional redemption by the Authority upon the direction of the Company at any time on or after November 1, 2027, for % of the principal amount plus accrued interest.
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WESTLAKE CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
aggregate principal amount of the % 2041 Senior Notes. The Company may optionally redeem the % 2041 Senior Notes at any time and from time to time prior to February 15, 2041 (six months prior to the maturity date) for a redemption price equal to the greater of (i) % of the principal amount plus accrued and unpaid interest and (ii) the sum of the present values of the remaining scheduled payments on the % 2041 Senior Notes being redeemed that would be due if the % 2041 Senior Notes matured on February 15, 2041, discounted to the redemption date on a semi-annual basis, plus basis points, and plus accrued and unpaid interest. In addition, the Company may optionally redeem the % 2041 Senior Notes at any time on or after February 15, 2041 for % of the principal amount plus accrued and unpaid interest.
4.375% Senior Notes due 2047
In November 2017, the Company completed the registered public offering of $ aggregate principal amount of the % 2047 Senior Notes. The % 2047 Senior Notes are unsecured and mature on November 15, 2047. There is no sinking fund and no scheduled amortization of the % 2047 Senior Notes prior to maturity. The Company may optionally redeem the % 2047 Senior Notes in accordance with the terms of the % 2047 Senior Notes.
3.125% Senior Notes due 2051
In August 2021, the Company completed the registered public offering of $ aggregate principal amount of the % 2051 Senior Notes. The Company may optionally redeem the % 2051 Senior Notes at any time and from time to time prior to February 15, 2051 (six months prior to the maturity date) for a redemption price equal to the greater of (i) % of the principal amount plus accrued and unpaid interest and (ii) the sum of the present values of the remaining scheduled payments on the % 2051 Senior Notes being redeemed that would be due if the % 2051 Senior Notes matured on February 15, 2051, discounted to the redemption date on a semi-annual basis, plus basis points, and plus accrued and unpaid interest. In addition, the Company may optionally redeem the % 2051 Senior Notes at any time on or after February 15, 2051 for % of the principal amount plus accrued and unpaid interest.
3.375% Senior Notes due 2061
In August 2021, the Company completed the registered public offering of $ aggregate principal amount of the % 2061 Senior Notes. The Company may optionally redeem the % 2061 Senior Notes at any time and from time to time prior to February 15, 2061 (six months prior to the maturity date) for a redemption price equal to the greater of (i) % of the principal amount plus accrued and unpaid interest and (ii) the sum of the present values of the remaining scheduled payments on the % 2061 Senior Notes being redeemed that would be due if the % 2061 Senior Notes matured on February 15, 2061, discounted to the redemption date on a semi-annual basis, plus basis points, and plus accrued and unpaid interest. In addition, the Company may optionally redeem the % 2061 Senior Notes at any time on or after February 15, 2061 for % of the principal amount plus accrued and unpaid interest.
The holders of the % 2026 Senior Notes, the % 2029 Senior Notes, the % 2030 Senior Notes, the % 2032 GO Zone Refunding Senior Notes, the % 2041 Senior Notes, the % 2046 Senior Notes, the % 2047 Senior Notes, the % 2051 Senior Notes and the % 2061 Senior Notes may require the Company to repurchase the notes at a price equal to % of their principal amount, plus accrued and unpaid interest to, but not including, 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 respective indentures governing these notes).
The indenture governing the % 2026 Senior Notes, the % 2029 Senior Notes, the % 2030 Senior Notes, the % 2032 GO Zone Refunding Senior Notes, the % 2041 Senior Notes, the % 2046 Senior Notes, the % 2047 Senior Notes, the % 2051 Senior Notes, and the % 2061 Senior Notes (together, the "Notes") contains customary events of default and covenants that, among other things and subject to certain exceptions, restrict the Company and certain of the Company's subsidiaries' ability to (1) incur certain secured indebtedness, (2) engage in certain sale and leaseback transactions and (3) consolidate, merge or transfer all or substantially all of its assets. The Notes are unsecured and none of the Company's subsidiaries have guaranteed any series of the Notes.
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WESTLAKE CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
%-owned joint venture, entered into loan agreements for a maximum total limit of approximately $. The interest rate on these loans at December 31, 2024 was %. The unsecured loans include a government rate subsidy and have staggering 36 months maturities over a period. The balance outstanding under these loans was approximately $ at December 31, 2024.
As of December 31, 2024, the Company was in compliance with all of its long-term debt covenants.
The weighted average interest rate on all long-term debt was % at December 31, 2024 and % at December 31, 2023. Unamortized debt issuance costs on long-term debt were $ and $ at December 31, 2024 and 2023, respectively.
in 2025, $ in 2026, $ in 2027, and $ in 2029. There are no other scheduled maturities of debt in 2025 through 2029.
11.
, $ and $ for the years ended December 31, 2024, 2023 and 2022, respectively.
Common Stock
Each share of common stock entitles the holder to vote on all matters on which holders are permitted to vote, including the election of directors. There are no cumulative voting rights. Accordingly, holders of a majority of the total votes entitled to vote in an election of directors will be able to elect all of the directors standing for election. Subject to preferences that may be applicable to any outstanding preferred stock, the holders of the common stock will share equally on a per share basis any dividends when, as and if declared by the Board of Directors out of funds legally available for that purpose. If the Company is liquidated, dissolved or wound up, the holders of the Company's common stock will be entitled to a ratable share of any distribution to stockholders, after satisfaction of all the Company's liabilities and of the prior rights of any outstanding class of the Company's preferred stock. The Company's common stock has no preemptive or conversion rights or other subscription rights. There are no redemption or sinking fund provisions applicable to the Company's common stock.
Preferred Stock
The Company's charter authorizes the issuance of shares of preferred stock. The Company's Board of Directors has the authority, without stockholder approval, to issue preferred shares from time to time in one or more series, and to fix the number of shares and terms of each such series. The Board may determine the designations and other terms of each series including dividend rates, whether dividends will be cumulative or non-cumulative, redemption rights, liquidation rights, sinking fund provisions, conversion or exchange rights and voting rights.
Stock Repurchase Program
In November 2014, the Company's Board of Directors approved a $ share repurchase program (the "2014 Program"). In November 2015, the Company's Board of Directors approved the expansion of the 2014 Program by an additional $. In August 2018, the Company's Board of Directors approved the expansion of the 2014 Program by an additional $. In August 2022, the Company's Board of Directors approved the further expansion of the existing 2014 Program by an additional $. During the year ended December 31, 2024, shares of the Company's common stock were repurchased for an aggregate purchase price of $ under the 2014 Program. The number of shares repurchased by the Company under the 2014 Program was , and for the years ended December 31, 2024, 2023 and 2022, respectively. As of December 31, 2024, the Company had repurchased a total of shares of its common stock for an aggregate purchase price of approximately $.
Any shares repurchased under the 2014 Program are held by the Company as treasury stock and may be used for general corporate purposes, including for the 2013 Omnibus Incentive Plan. In 2014, the Company began delivering treasury shares to employees and non-employee directors for options exercised, for the settlement of restricted stock units and for the settlement of performance stock units. The cost of treasury shares delivered is determined using the specific identification method.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
12.
 $()$()
Net other comprehensive income (loss) attributable to Westlake Corporation
 ()()Balances at December 31, 2022 ()()
Net other comprehensive income (loss) attributable to Westlake Corporation
() ()Balances at December 31, 2023 ()()
Net other comprehensive income (loss) attributable to Westlake Corporation
 ()()Balances at December 31, 2024$ $()$()
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
13.
% of their annual eligible compensation, subject to an annual plan limit in line with the annual elective contribution limit as determined by the Internal Revenue Service. The Company matches its employee's contribution up to a certain percentage of such employee's compensation, per the terms of the plan. The Company may, at its discretion and per the terms of the plan, make an additional non-matching contribution in an amount as the Board of Directors may determine. For the years ended December 31, 2024, 2023 and 2022, the Company recorded approximately $, $ and $, respectively, to expense for these contributions.
Further, within the plan, the Company also makes an annual retirement contribution to substantially all employees of certain subsidiaries. The Company's contributions to the plan are determined as a percentage of employees' pay. For the years ended December 31, 2024, 2023 and 2022, the Company charged approximately $, $ and $, respectively, to expense for these contributions.
Non-U.S. Plans
The Company has defined contribution plans in several countries covering eligible employees of the Company. The Company's contributions to the plans are based on applicable laws in each country and eligibility of employees of certain subsidiaries for the annual retirement contribution. Contributions to the Company's non-U.S. defined contribution plans are made by both the employee and the Company. For the years ended December 31, 2024, 2023 and 2022, the Company charged approximately $, $ and $, respectively, to expense for its contributions to these plans. For the years ended December 31, 2024, 2023 and 2022, the Company charged an additional $, $ and $, respectively, to expense related to the annual retirement contributions to these plans.
Defined Benefit Plans
U.S. Plans
The Company has noncontributory defined benefit pension plans that cover certain eligible salaried and wage employees of certain subsidiaries. However, eligibility and benefits for the Company's plans have been frozen. Benefits for salaried employees under these plans are based primarily on years of service and employees' pay before the freeze date and benefits for wage employees are based upon years of service and a fixed amount determined at the time when benefits were frozen. The Company recognizes the years of service prior to the Company's acquisition of the subsidiary's facilities for purposes of determining eligibility and benefit levels for certain employees of the subsidiary. The measurement date for these plans is December 31.
Non-U.S. Plans
The Company has defined benefit pension plans covering current and former employees associated with the Company's operations. Several non-U.S. pension plans are unfunded and have no plan assets. These pension plans are closed to new participants. Benefits for employees for these plans are based primarily on employees' pay near retirement. The measurement date for the non-U.S. plans is December 31.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
 $ $ $ Service cost    Interest cost    Actuarial loss (gain) ()()() Benefits paid()()()()Settlements () ()Foreign exchange effects ()  Benefit obligation, end of year$ $ $ $ Change in plan assetsFair value of plan assets, beginning of year$ $ $ $ Actual return    Employer contribution    Benefits paid()()()()Administrative expenses paid() () Settlements () ()Foreign exchange effects ()  Fair value of plan assets, end of year$ $ $ $ Funded status, end of year$()$()$()$()
The actuarial loss (gain) in the benefit obligation for the periods presented is primarily driven by discount rate assumption changes.
 $ $ $ Current liabilities()()()()Noncurrent liabilities()()()()Net amount recognized$()$()$()$())$ $()$ Prior service credit()()()()
Total before tax (1)
$()$ $()$ 
______________________________
(1)After-tax totals for pension benefits were a gain of $ and a loss of $ for 2024 and 2023, respectively, and are reflected in stockholders' equity as accumulated other comprehensive income (loss).
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
% and, as such, are exempt from the Pension Protection Act's benefit restrictions. )$()$()$()Accumulated benefit obligation()()()()Fair value of plan assets     $ $ $ $ $ Administrative expenses      Interest cost      Expected return on plan assets()()()()()()Net amortization() ()()  Net periodic benefit cost (gain) $()$ $ $ $()$()
Other changes in plan assets and benefit obligation recognized in other comprehensive income (OCI)
Net loss (gain) emerging$()$()$()$ $ $()

2023
U.S. PlansNon-U.S. Plans
Level 1Level 2Level 3TotalLevel 1Level 2Level 3Total
Cash and common stock:
Cash and cash equivalents$ $ $ $ $ $ $ $ 
Collective investment trust and mutual funds—Equity securities:
Large-cap funds (1)
        
Small-cap funds (2)
        
International funds (3)
        
Collective investment trust and mutual funds—Fixed income:
Bond funds (4)
        
Short-term investment funds        
Group insurance contract        
$ $ $ $ $ $ $ $ 
______________________________
(1)Substantially all of the assets of these funds are invested in large-cap U.S. companies. The remainder of the assets of these funds is invested in cash reserves.
(2)Substantially all of the assets of these funds are invested in small-cap U.S. companies. The remainder of the assets of these funds is invested in cash reserves.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
The Company's funding policy for its U.S. plans is consistent with the minimum funding requirements of federal law and regulations. Based on preliminary estimates, the Company expects to make contributions of approximately $ and $ for the U.S. and Non-U.S. pension plans, respectively, in 2025.
Multi-employer Plans
Non-U.S. Plans
The Company participates in multi-employer plans, Pensionskasse der Mitarbeiter der Hoechst-Gruppe VVaG and Pensionskasse der Wacker-Chemie GmbH VVaG, which provide benefits to certain of the Company's employees in Germany. These multi-employer plans are closed to new participants. The plans provide fixed, monthly retirement payments on the basis of the credits earned by the participating employees. To the extent that the plans are underfunded, future contributions to the plans may increase and may be used to fund retirement benefits for employees related to other employers. The benefit obligations are covered up to a certain salary threshold by contributions made by the Company and employees to the plans. Contributions to the Company's multi-employer plans are expensed as incurred.
Other Post-retirement Benefits
In the U.S., the Company provides post-retirement healthcare and life insurance benefits for certain employees and their dependents who meet minimum age and service requirements. The Company has the right to modify or terminate some of these benefits. The Company has a post-retirement plan in Canada which is unfunded and provides medical and life insurance benefits for certain employees and their dependents. The Company also has an unfunded post-retirement benefit plan in the Netherlands.
)$ $()$()Noncurrent liabilities()()()()Net amount recognized$()$()$()$()
Estimated Future Benefit Payments
 $ Year 2  Year 3  Year 4  Year 5  Years 6 to 10  
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
14.
term and vest ratably on an annual basis over a period. Outstanding restricted stock units and performance stock units vest at the end of a one to period. In accordance with accounting guidance related to share-based payments, stock-based compensation expense for all stock-based compensation awards is based on estimated grant-date fair value. The Company recognizes these stock-based compensation costs net of a forfeiture rate and on a straight-line basis over the requisite service period of the award for only those shares expected to vest. For the years ended December 31, 2024, 2023 and 2022, the total recognized stock-based compensation expense related to equity awards issued under the 2013 Plan was $, $ and $, respectively. $ Granted  Exercised() Cancelled() Outstanding at December 31, 2024 $ $ Exercisable at December 31, 2024 $ $  - $ 
$ - $
 
$ - $
 
$ - $
 
$ - $
 
The aggregate intrinsic value in the table above represents the total pretax intrinsic value (the difference between the Company's closing stock price on the last trading day of the year and the exercise price, multiplied by the number of in-the-money options) that would have been received by the option holders had all option holders exercised their options on December 31, 2024. This amount changes based on the fair market value of the Company's common stock. For the years ended December 31, 2024, 2023 and 2022, the total intrinsic value of options exercised was $, $ and $, respectively.
As of December 31, 2024, $ of total unrecognized compensation cost related to stock options is expected to be recognized over a weighted-average period of years. Income tax benefits of $, $ and $ were realized from the exercise of stock options during the years ended December 31, 2024, 2023 and 2022, respectively.
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(in millions of dollars, except share amounts and per share data)
 $ $ Risk-free interest rate % % %Expected life in yearsExpected volatility % % %Expected dividend yield % % % $ Granted  Vested() Forfeited() Non-vested at December 31, 2024 $ 
As of December 31, 2024, there was $ of unrecognized stock-based compensation expense related to non-vested restricted stock units. This cost is expected to be recognized over a weighted-average period of years. The total fair value of restricted stock units that vested during the years ended December 31, 2024, 2023 and 2022 was $, $ and $, respectively.
Performance stock unit payout is based on the greater of the average annual economic-value added results for the Company (equal to net operating profit after tax less a capital charge based upon the weighted average cost of capital) and relative total shareholder return as compared to a peer group of companies. The units have payouts that range from to percent of the target award.
 $ Granted  Vested() Forfeited() Non-vested at December 31, 2024 $ 
As of December 31, 2024, there was $ of unrecognized stock-based compensation expense related to non-vested performance stock units. This cost is expected to be recognized over a weighted-average period of years. The total fair value of performance stock units that vested during the years ended December 31, 2024, 2023 and 2022 was $, $ and $, respectively.
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(in millions of dollars, except share amounts and per share data)
 % % %Expected life in yearsExpected volatility of Westlake Corporation common stock % % %Expected volatility of peer companies
% - %
% - %
% - %
Average correlation coefficient of peer companiesGrant date fair value$ $ $ 
Westlake Chemical Partners LP Awards
The Company's wholly-owned subsidiary and the general partner of Westlake Partners, Westlake Chemical Partners GP LLC ("Westlake Partners GP"), maintains a unit-based compensation plan for directors and employees of Westlake Partners GP and Westlake Partners.
The Westlake Partners 2014 Long-term Incentive Plan ("Westlake Partners 2014 Plan") permits various types of equity awards including but not limited to grants of phantom units and restricted units. Awards granted under the Westlake Partners 2014 Plan may be settled with Westlake Partners units or in cash or a combination thereof. Compensation expense for these awards was not material to the Company's consolidated financial statements for the years ended December 31, 2024, 2023 and 2022.
15.
 $ $ $ 
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
16.
 $ $ Foreign () $ $ $  $ $ State   Foreign   
Total current
   DeferredFederal()()()State ()()Foreign()()()
Total deferred
()()()Total provision for (benefit from) income taxes$ $ $  $ $ State income tax provision, net of federal income tax effect   Foreign income tax rate differential () Noncontrolling interests()()()Change in valuation allowance   U.S. federal research and development credits()()()
Uncertain Income Tax Positions
   
Goodwill impairment
   
Change in state apportionment and tax rates
 ()()Other, net()()()
Total income tax expense (benefit)
$ $ $ 
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
 $ Credit carryforward  Operating lease liabilities  Accruals  Pension  Inventories  Research and experimental expenditures  Other  Deferred taxes assets—total  Property, plant and equipment()()Intangibles()()Operating lease right-of-use asset()()Turnaround costs()()Consolidated partnerships()()Equity method investments()()Other()()Deferred tax liabilities—total()()Valuation allowance()()Total net deferred tax liabilities$()$()Balance sheet classificationsNoncurrent deferred tax asset$ $ Noncurrent deferred tax liability()()Total net deferred tax liabilities$()$()
At December 31, 2024, the Company had federal, foreign and state net operating loss carryforwards ("NOLs") of approximately $, $ and $, respectively. The federal NOL and certain foreign and state NOLs do not expire, while certain other foreign and state NOLs expire in varying amounts between 2025 and 2044. The federal NOL and certain state NOLs are subject to limitations on an annual basis. At December 31, 2024, the Company had various federal and state credit carryforwards of $ and $, respectively, which either do not expire or expire in varying amounts between 2027 and 2039. Management believes the Company will realize the benefit of a portion of the net operating loss and credit carryforwards before they expire, but to the extent that the full benefit may not be realized, a valuation allowance has been recorded. The valuation allowance increased by $ primarily due to continuing operations of Westlake's base epoxy resin business in the Netherlands, which generated deferred tax assets including net operating loss carryforwards that are not expected to be realized. To the extent the Company's base epoxy resin business continues to generate significant net operating losses in the future, a valuation allowance against the associated deferred tax asset generated may continue to be required.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
for the revaluation of state deferred tax assets and deferred tax liabilities associated with the change in corporate state income tax and apportionment rates resulting from this change. The Company will continue to evaluate the impact of these tax law changes.
The Company's total gross unrecognized tax benefits were $, $ and $ as of December 31, 2024, 2023 and 2022, respectively. The changes in the gross unrecognized tax benefits in 2024 and 2023 were primarily related to additions to the tax positions. The changes in gross unrecognized tax benefit in 2022 was primarily related to the acquisition of Westlake Epoxy on February 1, 2022. If recognized, the majority of the gross unrecognized tax benefit would favorably affect the effective tax rate. The Company recognizes interest and penalties related to unrecognized tax benefits in income tax expense. Interest and penalties related to unrecognized tax benefits accrued at the end of each respective period were $, $, and $. The Company does not anticipate that there will be a material change in the total amount of unrecognized tax benefits in the next 12 months. The potential changes, ultimate resolution and timing of payment for remaining matters continues to be uncertain.
The Company files income tax returns in the U.S. federal jurisdiction, various states and foreign jurisdictions. The Company is no longer subject to examinations by tax authorities before the year 2017.
On October 8, 2021, the Organization for Economic Co-operation and Development (the "OECD")/G20 Inclusive Framework on Base Erosion and Profit Shifting released a statement indicating that its members had agreed to a Two Pillar Solution to Address the Tax Challenges Arising from the Digitalisation of the Economy. Pillar One aims to reallocate a taxpayer's residual profits to the market jurisdictions with which the taxpayer has a nexus. Pillar Two aims to establish a minimum global tax rate of 15%, assessed through a top-up tax imposed on a country-by-country basis. Pillar One targets multinational companies with global annual revenue exceeding €20 billion and profit-to-revenue ratio of more than 10%. Based on the current threshold requirements, the Company does not expect to be subject to Pillar One. On December 20, 2021, the OECD released the Pillar Two model rules providing a framework for implementing a 15% minimum tax, also referred to as the Global Anti-Base Erosion ("GloBE") rules, on earnings of multinational companies with consolidated annual revenue exceeding €750 million.
On December 12, 2022, European Union (EU) member states agreed to adopt the 15% minimum tax under the Pillar Two model rules to be enacted into the member states' domestic tax laws by December 31, 2023, with an effective date beginning in 2024. As of December 31, 2024, a handful of EU member states have yet to comply. Outside of the EU, several other jurisdictions that the Company operates in have enacted legislation consistent with the GloBE rules, while other foreign countries continue to debate adoption and timing to adopt. The Company's global footprint includes operations within the EU, as well as other non-EU jurisdictions that have enacted GloBE related legislation, such as Canada, Japan, South Korea, Vietnam, the UK, Singapore, and Switzerland. At this time, the Company anticipates qualifying for at least one safe harbor in the majority of jurisdictions in which it operates. For those jurisdictions where a safe harbor was not met, the impact is anticipated to be immaterial. The Company will continue to closely monitor Pillar Two developments and evaluate the potential impact to the Company as more foreign countries enact legislation, and as new information and guidance becomes available. The impacts of Pillar Two are recorded in 2024, the first year in which the rules take effect.
17.
 $ $ Less:Net income attributable to participating securities   
Net income attributable to common stockholders
$ $ $ 
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
   Plus incremental shares from:Assumed exercise of options and vesting of performance stock units   Weighted average common shares—diluted   Earnings per common share attributable to Westlake Corporation:Basic$ $ $ Diluted$ $ $ 
Excluded from the computation of diluted earnings per share for the years ended December 31, 2024, 2023 and 2022 are options to purchase , and shares of common stock, respectively. These options were outstanding during the periods reported but were excluded because the effect of including them would have been antidilutive.
 $ $ 
18.
and $ at December 31, 2024 and 2023, respectively. Deferred turnaround costs, net of accumulated amortization, included in other assets, net were $ and $ at December 31, 2024 and 2023, respectively.
Accrued and Other Liabilities
Accrued and other liabilities were $ and $ at December 31, 2024 and 2023, respectively. Accrued rebates and accrued operating lease liability, which are components of accrued and other liabilities, were $ and $ at December 31, 2024 and $ and $ at December 31, 2023, respectively. No other component of accrued and other liabilities was more than five percent of total current liabilities. Accrued liabilities with related parties were $ and $ at December 31, 2024 and 2023, respectively.
Non-cash Investing Activity
Capital expenditure related liabilities, included in accounts payable and accrued and other liabilities, were $, $, and $ at December 31, 2024, 2023, and 2022, respectively.
A non-cash charge of $ related to asset retirement obligations was recognized for the year ended December 31, 2024.
Restructuring, Transaction and Integration-related Costs
For the years ended December 31, 2024, 2023 and 2022, the restructuring, transaction and integration-related costs were $, $ and $, respectively. The costs in 2024 are restructuring and integration costs primarily consisted of plant mothballing, employee severance and separation expenses as further discussed below. The costs in 2023 are restructuring and integration costs primarily related to plant closures resulting from the Company's manufacturing footprint optimization efforts. The 2022 expenses primarily consist of integration-related consulting fees, restructuring expenses and costs associated with the Company's acquisition of Westlake Epoxy in 2022, as further discussed below, and other acquisitions in previous years.
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(in millions of dollars, except share amounts and per share data)
related to mothballing of the Units, which consisted of charges for environmental remediation and other plant mothballing expenses of approximately $ and of employee severance and separation expenses of approximately $. The Company continues to operate the liquid epoxy resin (LER) and bisphenol A (BPA) units at the Pernis facility.
Westlake Epoxy Acquisition in 2022
On February 1, 2022, the Company completed its acquisition of Hexion's global epoxy business ("Westlake Epoxy") for total consideration of $. The assets acquired and liabilities assumed and the results of operations of the Westlake Epoxy business are included in the Performance and Essential Materials segment. The purchase accounting adjustments for the year ended December 31, 2023 resulted in a $ increase in goodwill. The intangible assets that have been acquired are being amortized over periods of to years, except for certain intangible assets that were subject to impairment in 2023 as discussed in Note 5.
Other Income, Net
For the year ended December 31, 2024, other income, net included interest income, proceeds from a sale of land and income from unconsolidated subsidiaries of $, $ and $, respectively. For the year ended December 31, 2023, other income, net included interest income, insurance recoveries and income from unconsolidated subsidiaries of $, $ and $, respectively. For the year ended December 31, 2022, other income, net included interest income, income from pension and post-retirement plans and income from unconsolidated subsidiaries of $, $ and $, respectively.
 $ $ Right-of-use assets obtained in exchange for operating lease obligations   
______________________________
(1)    Includes cash paid for amounts included in the measurement of operating lease liabilities recorded in the consolidated balance sheets.
Cash Flow Information
Year Ended December 31,
202420232022
Cash paid for:
Interest paid, net of interest capitalized$ $ $ 
Income taxes paid
   
19.
billion pounds per year of ethylene production capacity. See Note 8 for details of the Company's transactions with LACC.
The Company leases office space for management and administrative services from an affiliate of the Company's principal stockholder. For the year ended December 31, 2024, the Company incurred lease payments of approximately $. For each of the years ended December 31, 2023 and 2022, the Company incurred lease payments of approximately $.
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(in millions of dollars, except share amounts and per share data)
% equity interest, transports natural gas liquid feedstocks to the Company's Lake Charles complex through its pipeline. The Company accounts for its investments in Cypress Interstate Pipeline L.L.C. under the equity method of accounting. The investment in Cypress Interstate Pipeline L.L.C. at December 31, 2024 and 2023 was $ and $, respectively. For the years ended December 31, 2024, 2023 and 2022, the Company incurred pipeline lease service fees of approximately $, $ and $, respectively, payable to this joint venture for usage of the pipeline. The amounts due to this joint venture were $ at December 31, 2024 and 2023.
The Company owns an approximately % equity interest in both YNCORIS GmbH & Co. KG (formerly known as InfraServ Knapsack GmbH & Co. KG) and InfraServ Gendorf GmbH & Co. KG (collectively "Infraserv"). The Company accounts for its investments in Infraserv under the equity method of accounting. The Company has service agreements with these entities, including contracts to provide electricity, technical and leasing services to certain of the Company's production facilities in Germany. The investment in Infraserv was $ and $ at December 31, 2024 and 2023, respectively. For the years ended December 31, 2024, 2023 and 2022, the Company incurred charges aggregating approximately $, $ and $, respectively, for these services. The amounts accrued for these related parties were approximately $ and $ at December 31, 2024 and 2023, respectively.
In conjunction with the Westlake Epoxy acquisition, the Company acquired % equity interest in Westlake UV Coatings (Shanghai) Co., Ltd. (formerly known as Hexion UV Coatings Co., LTD). The investment in Westlake UV Coatings (Shanghai) Co., Ltd. was $ and $ at December 31, 2024 and 2023, respectively. The Company accounts for its investments in Westlake UV Coatings (Shanghai) Co., Ltd. under the equity method of accounting.
Dividends received from equity method investments were $, $ and $ for the years ended December 31, 2024, 2023 and 2022, respectively.
One of the Company's directors served as Chairman and Chief Executive Officer of American Air Liquide, Inc. and Executive Vice President of the Air Liquide Group ("Air Liquide") until July 2024. The Company purchased oxygen, nitrogen and utilities and leased cylinders from various affiliates of Air Liquide aggregating approximately $, $ and $ for the years ended December 31, 2024, 2023 and 2022, respectively. The Company also sold certain utilities to Air Liquide aggregating approximately $, $ and $ during the years ended December 31, 2024, 2023, 2022, respectively. The amounts payable to Air Liquide were $ at December 31, 2023, and the amounts receivable from Air Liquide were $ and $ at December 31, 2024, and 2023, respectively.
20.
common units. Most recently, on March 29, 2019, Westlake Partners purchased an additional % newly issued limited partner interests in OpCo and completed a private placement of common units. TTWF LP, the Company's principal stockholder and a related party, acquired units out of the common units issued in the private placement. At December 31, 2024, Westlake Partners had a % limited partner interest in OpCo, and the Company retained a % limited partner interest in OpCo and a significant interest in Westlake Partners through the Company's ownership of Westlake Partners' general partner, % of the limited partner interests (consisting of common units) and incentive distribution rights.
On October 4, 2018, Westlake Partners and Westlake Partners GP, the general partner of Westlake Partners, entered into an Equity Distribution Agreement with UBS Securities LLC, Barclays Capital Inc., Citigroup Global Markets Inc., Deutsche Bank Securities Inc., RBC Capital Markets, LLC, Merrill Lynch, Pierce, Fenner & Smith Incorporated and Wells Fargo Securities, LLC to offer and sell Westlake Partners' common units, from time to time, up to an aggregate offering amount of $. This Equity Distribution Agreement was amended on February 28, 2020 to reference a new shelf registration for utilization under this agreement. No common units had been issued under this program as of December 31, 2024.
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(in millions of dollars, except share amounts and per share data)
21.
in single damages from the defendants, in addition to treble damages and attorney's fees. The plaintiffs in the putative class for such indirect purchasers seek approximately $ in single damages from the defendants, in addition to treble damages (if permitted under applicable state law) and injunctive relief. In December 2023, the Court denied the direct purchaser plaintiffs' motion for class certification and the Second Circuit subsequently denied the direct purchaser plaintiffs' motion for an interlocutory appeal for that ruling. The Company recorded an estimated liability in the amount of $ in 2023 in connection with its entry into a settlement agreement with the direct purchaser plaintiffs. However, in June 2024, the Court declined preliminary approval of the settlement and rejected certification of a settlement class. As a result, the Company terminated the settlement agreement and reversed the $ recorded liability. In July 2024, the direct purchaser plaintiffs filed an amended motion for preliminary approval of the settlement, which the Court denied on October 29, 2024. The Court denied the indirect purchaser plaintiffs' motion for class certification in December 2024. The direct purchaser plaintiffs have a pending petition in the Second Circuit requesting leave to appeal the Court's October 2024 order, and the indirect purchaser plaintiffs have a pending petition regarding the Court's December 2024 order. Beginning in October 2020, similar class action proceedings were also filed in Canada before the Superior Court of Québec as well as before the Federal Court. These proceedings seek the certification or authorization of a class action on behalf of all residents of Canada who purchased caustic soda (including, in one of the cases, those who merely purchased products containing caustic soda) from October 1, 2015 through the present or such date deemed appropriate by the court. On December 10, 2021, the Superior Court of Québec stayed its proceedings until after a final certification decision is released in the Federal Court proceedings. At this time, the Company is not able to estimate the impact, if any, that these lawsuits could have on the Company's consolidated financial statements either in the current period or in future periods.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
 million with interest compounding daily from January 1, 2020 and continuing until payment in full, as provided by Dutch law, resulting from artificially lowered prices for ethylene and ethylene derivatives during the specified period. SCE is also seeking reimbursement of costs related to the proceeding plus statutory interest. The Company and other ethylene consumers were also named as defendants in a civil lawsuit filed by Stichting Ethylene Claims ("Stichting") in November 2023 in the District Court of Amsterdam, the Netherlands, following the European Commission Decision. Stichting is a foundation under Dutch Law that claims to represent various parties asserting injury by the same alleged conduct of defendants, seeking a declaratory judgment establishing that the Company and other defendants are jointly and severally liable for an unspecified amount of damages. The Company and certain of its subsidiaries, including Westlake Germany GmbH & Co. KG, Westlake Vinnolit GmbH & Co. KG and Westlake Vinnolit Holdings GmbH, along with other ethylene consumers, were also named as defendants in a civil lawsuit filed by BASF SE and BASF Antwerpen N.V. (together "BASF") in December 2024 in the District Court of Munich, Germany, following the same European Commission decision. BASF seeks alleged damages of € million from the defendants, plus statutory interest accruing from the date of each relevant transaction (amounting to approximately € billion as of December 31, 2024), due to an alleged cartel-induced undercharge for certain ethylene sales to the defendants and third parties during the period identified in the European Commission's Decision and for 24 months thereafter. The Company and certain of its subsidiaries, including Westlake Germany GmbH & Co. KG, Westlake Vinnolit GmbH & Co. KG and Westlake Vinnolit Holdings GmbH, along with other ethylene consumers, were also named as defendants in a civil lawsuit filed by Total Energies Petrochemicals France and TotalEnergies Petrochemicals & Refining SA (together "Total") in February 2025 in the District Court of Amsterdam, the Netherlands, following the European Commission Decision. Total seeks alleged damages of €625 million from the defendants, plus statutory interest accruing from the date of each relevant transaction, due to an alleged cartel-induced undercharge for certain ethylene sales to the defendants and third parties during the period identified in the European Commission's Decision and for 24 months thereafter. Additionally, Total seeks a declaratory judgment establishing that the Company and other defendants are jointly and severally liable for unspecified amount of damages relating to the effect of the alleged cartel-induced undercharges on Total's polyethylene sales. At this time, the Company is not able to estimate the impact, if any, that the SCE lawsuit, the Stichting lawsuit, the BASF lawsuit and/or the Total lawsuit could have on the Company's consolidated financial statements either in the current period or in future periods.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
for the damages awarded to Triad Hunter. The court subsequently denied Triad Hunter's request to enjoin further solution mining from one of the brine fields at the Natrium Plant. On September 12, 2023, final judgment was entered in the amount of $ with interest accruing at the rate of % from the date the judgment was rendered, as provided by law. The Company appealed the verdict and sought a stay of execution pending appeal on October 30, 2023. The intermediate appellate court affirmed, and the Company filed its notice of appeal to the Ohio Supreme Court on December 13, 2024.
Brazilian Contractual Indemnification Lawsuit. In July 2012, PPG Industries, Inc. ("PPG") entered into an agreement to separate various assets and liabilities of its commodity chemicals business, which were transferred to a subsidiary of Eagle Spinco, Inc., a wholly owned subsidiary of PPG ("Eagle Spinco"). The separation and the post separation contractual relationship between PPG and Eagle Spinco are generally set forth in that certain Separation Agreement dated as of July 18, 2012, by and between PPG and Eagle Spinco (the "Separation Agreement"). In January 2013, Eagle Spinco merged with Georgia Gulf Corporation to create Axiall Corporation ("Axiall"), which the Company later acquired in August 2016. Eagle Spinco is currently a wholly owned indirect subsidiary of the Company.
In May 2024, a trial court in Manaus, Brazil issued a decision awarding damages to Brazilian company Di Gregorio Navegacao, Ltda ("Di Gregorio") in a lawsuit filed by Di Gregorio against PPG relating to an explosion on November 9, 1998 that destroyed the M/V DG Harmony and her cargo, which included PPG-owned calcium hypochlorite (the "Lawsuit"). The decision awarded damages to Di Gregorio in the approximate amount of R$ million (Brazilian real), plus a monetary adjustment and interest since April 3, 2006 (based on Selic), as well as % for legal fees and a small procedural fine. The parties to the lawsuit are waiting on the trial court's accounting department to release the aggregate judgment amount. On June 14, 2024, PPG filed an appeal of the decision in the Amazonas Court of Appeals in Manaus, Brazil. The Amazonas Court of Appeals issued a decision affirming in part the trial court's decision. PPG is expected to appeal to the Brazilian Superior Court of Justice. PPG asserts that the Company and certain of its subsidiaries are responsible for any judgment in the Di Gregorio lawsuit.
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WESTLAKE CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
and $, respectively, most of which was classified as noncurrent liabilities. The Company's assessment of the potential impact of these environmental contingencies is subject to considerable uncertainty due to the complex, ongoing and evolving process of investigation and remediation, if necessary, of such environmental contingencies, and the potential for technological and regulatory developments.
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WESTLAKE CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
, with an estimated $ to $ in annual operation and maintenance ("O&M") costs. In September 2018, the EPA published the Record of Decision ("ROD") for the site, formally selecting the preferred final and interim remedies outlined in the amended Proposed Plan. In October 2018, the EPA issued Special Notice letters to the PRPs for the remedial design phase of work under the ROD. In April 2019, the PRPs and the EPA entered into an administrative settlement agreement and order on consent for remedial design. In October 2019, the PRPs received special notice letters for the remedial action phase of work at the site. The Company, jointly with the other PRPs, submitted a good faith offer response in December 2019. On September 17, 2020, the EPA and the Department of Justice filed a proposed consent decree for the remedial action with the U.S. District Court for the Western District of Kentucky. On November 16, 2020, the Department of Justice filed a motion to approve and enter the consent decree. On January 28, 2021, the Court granted the unopposed motion to enter the consent decree, which became effective the same day. The Company's allocation of liability for remedial and O&M costs at the Calvert City site, if any, is governed by a series of agreements between the Company, Goodrich and Avient. These agreements and the associated litigation are described below.
In connection with the 1990 and 1997 acquisitions of the Goodrich chemical manufacturing complex in Calvert City, Goodrich agreed to indemnify the Company for any liabilities related to preexisting contamination at the complex. For its part, the Company agreed to indemnify Goodrich for post-closing contamination caused by the Company's operations. The soil and groundwater at the complex, which does not include the Company's nearby PVC facility, had been extensively contaminated by Goodrich's operations. In 1993, Goodrich spun off the predecessor of Avient, and that predecessor assumed Goodrich's indemnification obligations relating to preexisting contamination. In 2003, litigation arose among the Company, Goodrich and Avient 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) Avient would pay % 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; and (2) either the Company or Avient might, from time to time in the future (but not more than once every five years), institute an arbitration proceeding to adjust that percentage. In May 2017, Avient filed a demand for arbitration. In this proceeding, Avient sought to readjust the percentage allocation of future costs and to recover approximately $ from the Company in reimbursement of previously paid remediation costs. The Company's cross demand for arbitration seeking unreimbursed remediation costs incurred during the relevant period was dismissed from the proceedings when Avient paid such costs in full at the beginning of the arbitration hearing.
On July 10, 2018, Avient sued the Company in the U.S. District Court for the Western District of Kentucky and sought to invalidate the arbitration provisions in the parties' 2007 settlement agreement and enjoin the arbitration it had initiated in 2017. On July 30, 2018, the district court refused to enjoin the arbitration and, on January 15, 2019, the court granted the Company's motion to dismiss Avient's suit. On February 13, 2019, Avient appealed those decisions to the U.S. Court of Appeals for the Sixth Circuit. The court of appeals issued an opinion and final order on September 6, 2019, affirming the district court.
The arbitration hearing began in August 2018 and concluded in December 2018. On May 22, 2019, the arbitration panel issued its final award. It determined that Avient was responsible for % of the allocable costs at issue in the proceeding and that Avient would remain responsible for % of the costs to operate the existing groundwater remedy at the Calvert City site. In August 2019, Avient filed a motion to vacate before the U.S. District Court for the Western District of Kentucky, seeking to invalidate the final award under the Federal Arbitration Act. On February 11, 2020, the U.S. District Court for the Western District of Kentucky denied Avient's motion to vacate and affirmed the arbitration final award. Avient did not file a notice of appeal before the March 10, 2020 deadline to contest the court's decision. Accordingly, the final award was affirmed, and the arbitration proceeding is fully and finally resolved.
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WESTLAKE CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
, for which Avient claims the Company is totally liable. On September 30, 2023, the court issued an order denying without prejudice the parties' cross motions for summary judgment and set a 30-day deadline for the parties to refile and provide additional briefing on specific aspects of the arguments before the court. The parties each refiled and provided additional briefing by the deadline. On September 30, 2024 the district court issued an order granting the Company's request for summary judgment. The arbitration proceeding remains stayed because Avient filed an appeal of the district court's order with the U.S. Court of Appeals for the Sixth Circuit Court of Appeals. Briefing before the Sixth Circuit has been scheduled through March 2025. The Company disputes Avient's claims and at this time, the Company believes it is unlikely that any remediation costs allocable to it would result in material expenditures in any individual reporting period.
Sulphur Brine Dome. The Company owns and operates salt solution-mining caverns at the Sulphur Brine Dome in Sulphur, Louisiana. The Louisiana Department of Energy and Natural Resources ("LDENR") issued Compliance Order No. IMD 2022-027 and several supplements to that order, the latest in October 2023, in response to pressure anomaly events in two of the Company's brine caverns. These brine caverns were not active, operating wells but were under ongoing, post-operational monitoring requirements. The compliance order and supplements thereto have required the Company to undertake various activities related to response planning, monitoring, investigation and mitigation of potential impacts in the event of future cavern pressure anomalies or failures. Since December 2022, continuous brine injection has maintained cavern pressure while the Company continues to pursue active monitoring, studies, groundwater monitoring, modeling and other activities under the compliance order and supplements. In September 2023, the Office of Conservation issued an emergency declaration as a conservative step to ensure ample resources are available to the government in its response and management of the evolving circumstances at the Sulphur Brine Dome. In June 2024, the Company's cavern experienced a pressure event. As a result, the cavern required increased rates of brine injection, which ultimately restored cavern pressure but leveled out at a higher injection rate to maintain cavern stability. Citing the recent pressure event, LDENR ordered the Company to begin construction of a dome-wide containment structure, the planning for which was already underway pursuant to the existing compliance order and supplements thereto. The capital costs and expenditures required to comply with the compliance orders and supplements have been and will continue to be incurred. In response to these orders, the Company reserved approximately $ in connection with monitoring wells and other remedial activities. At this time, the Company is unable to estimate the impact, if any, that other ongoing expenditures or future injunctive relief ordered by the government could have on the Company's consolidated financial statements either in the current period or in future periods.
In April 2023, Yellow Rock LLC ("Yellow Rock") filed a petition in the 14th Judicial District Court of Calcasieu Parish, Louisiana alleging negligence and breach of duties related to the well operations and response activities the Company undertook in connection with the compliance orders issued by the LDENR. In November 2024, Yellow Rock filed an amended petition naming additional defendants, including PPG, Lonquist & Co. LLC and Lonquist Field Services, LLC, and asserting allegations that the defendants' operations of assets at the Sulphur Brine Dome interfered with and prevented Yellow Rock's development of oil and gas assets including specifically an alleged damages in excess of $. At this time, the Company is not able to estimate the impact that this lawsuit could have on the Company's consolidated financial statements either in the current period or in future periods.
Environmental Remediation: Reasonably Possible Matters. The Company's assessment of the potential impact of environmental contingencies is subject to considerable uncertainty due to the complex, ongoing and evolving process of investigation and remediation, if necessary, of such environmental contingencies, and the potential for technological and regulatory developments. As such, in addition to the amounts currently reserved for contingencies that are probable and reasonably estimable as discussed above, the Company may be subject to reasonably possible loss contingencies related to environmental matters in the range of $ to $.
Other Commitments
, which included approximately $ in 2025, $ in 2026, $ in 2027, $ in 2028, $ in 2029, and $ thereafter.
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WESTLAKE CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
22.
principal operating segments, which are the Company's reportable segments, Performance and Essential Materials and Housing and Infrastructure Products. These segments are strategic business units that each offer a variety of different materials and products. The Company manages each segment separately as each business requires different technology and marketing strategies. The operating results of each segment are reviewed by the Company's Chief Executive Officer, the chief operating decision maker ("CODM"). The CODM evaluates segment performance based on income from operations. The CODM reviews each segment's actual and forecasted income from operations to allocate resources and assess performance.
The Company's Performance and Essential Materials segment manufactures and markets polyethylene, styrene monomer, ethylene co-products, PVC, VCM, ethylene dichloride ("EDC"), chlor-alkali (chlorine and caustic soda), chlorinated derivative products and epoxy resins. The Company's ethylene production is used in the Company's polyethylene, styrene and VCM operations. In addition, the Company sells ethylene and ethylene co-products, primarily propylene, crude butadiene, pyrolysis gasoline and hydrogen, to external customers. The Company's primary North American manufacturing facilities are located in its Calvert City, Kentucky; Lake Charles, Plaquemine and Geismar, Louisiana; Longview and Deer Park, Texas; Lakeland, Florida and Argo, Illinois sites. The Company's primary European facilities are located in Germany and the Netherlands. The Company produces ethylene and polyethylene at its facilities in Lake Charles, Louisiana; Calvert City, Kentucky and Longview, Texas. The Company produces chlorine, caustic soda, VCM, EDC, PVC, hydrogen and chlorinated derivative materials at its facilities in Lake Charles, Plaquemine and Geismar, Louisiana; Calvert City, Kentucky; Natrium, West Virginia; Longview, Washington; Beauharnois, Quebec; Aberdeen, Mississippi and in Germany. Epoxy resins primarily comprise of Epoxy Specialty Resins and Base Epoxy Resins and Intermediaries. Epoxy Specialty Resins are produced at manufacturing facilities in Duisburg and Esslingen in Germany; Argo and Lakeland in the United States; one plant in Spain and one plant in South Korea. Base Epoxy Resins and Intermediaries are produced at Company's facilities plants in Pernis, the Netherlands and Deer Park, United States. In addition, the Company also has other manufacturing facilities and product development facilities in North America, Europe and Asia.
The Housing and Infrastructure Products segment manufactures and markets products including residential siding, trim and mouldings, stone, roofing, windows, outdoor living products, PVC pipe and fittings and PVC compounds. As of December 31, 2024, the Company owned or leased manufacturing facilities in North America, Europe and Asia. The Company's North American PVC facilities within the Performance and Essential Materials segment supply most of the PVC required for the building products and pipes and fittings plants. The raw materials for stone, roofing and accessories, windows, shutters and specialty tool products are externally purchased. PVC required for the PVC compounds plants is either internally sourced from Company's North American or Asian facilities or externally purchased at market prices based on the location of the plants.
single customer accounted for 10% or more of net sales for the years ended December 31, 2024, 2023 or 2022.
The accounting policies of the individual segments are the same as those described in Note 1.
 $ $ Essential Materials   Total Performance and Essential Materials   Housing and Infrastructure ProductsHousing Products   Infrastructure Products   Total Housing and Infrastructure Products   
Total reportable segments and consolidated
$ $ $ 
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
 $ $ Housing and Infrastructure Products   
Total reportable segments
$ $ $ 
Significant segment expenses
Performance and Essential Materials
Raw material, energy, manufacturing and logistics costs$ $ $ 
Depreciation and amortization
   
Total cost of sales
$ $ $ 
Selling, general and administrative expenses
   
Depreciation and amortization
   
Impairment of goodwill and long-lived assets
   
Restructuring, transaction and integration-related costs
   
Total selling, general and administrative expenses
$ $ $ 
Housing and Infrastructure Products
Raw material, energy, manufacturing and logistics costs$ $ $ 
Depreciation and amortization
   
Total cost of sales
$ $ $ 
Selling, general and administrative expenses
   
Depreciation and amortization
   
Restructuring, transaction and integration-related costs
   
Total selling, general and administrative expenses
$ $ $ 
Income from operations
Performance and Essential Materials$ $ $ Housing and Infrastructure Products   
Total reportable segments
$ $ $ Depreciation and amortizationPerformance and Essential Materials$ $ $ Housing and Infrastructure Products   
Total reportable segments
   Corporate and other   
Consolidated
$ $ $ Other income, netPerformance and Essential Materials$ $ $ Housing and Infrastructure Products   
Total reportable segments
   Corporate and other   
Consolidated
$ $ $ 
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WESTLAKE CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
(in millions of dollars, except share amounts and per share data)
 $()$ Housing and Infrastructure Products   
Total reportable segments
   Corporate and other()  
Consolidated
$ $ $ 
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Exhibit No.Exhibit Index
10.1
10.2
10.3
10.4
10.5
10.6
10.7
10.8
10.9
10.10
10.11
10.12+
10.13+
10.14+
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Exhibit No.Exhibit Index
10.15
10.16+
10.17+
10.18+
10.19+
10.20+
19†
21†
23.1†
31.1†
31.2†
32.1††
97
101.INS†XBRL Instance Document-The instance document does not appear in the interactive data file because its XBRL tags are embedded within the Inline XBRL document.
101.SCH†
XBRL Taxonomy Extension Schema Document.
101.CAL†
XBRL Taxonomy Extension Calculation Linkbase Document.
101.DEF†
XBRL Taxonomy Extension Definition Linkbase Document.
101.LAB†
XBRL Taxonomy Extension Label Linkbase Document.
101.PRE†
XBRL Taxonomy Extension Presentation Linkbase Document.
104
Cover Page Interactive Data File-The cover page interactive data file does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document and contained in Exhibit 101.

______________________________
†    Filed herewith.
††    Furnished herewith.
+    Management contract, compensatory plan or arrangement.
* On February 18, 2022, Westlake Chemical Corporation changed its corporate name to Westlake Corporation. Accordingly, filings made prior to such date were made under the name Westlake Chemical Corporation.
Item 16. Form 10-K Summary.
None.
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SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
WESTLAKE CORPORATION
Date:February 25, 2025
/S/    JEAN-MARC GILSON
Jean-Marc Gilson, President and Chief Executive Officer
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.
SignatureTitleDate
/S/    JEAN-MARC GILSON
President, Chief Executive Officer and Director
   (Principal Executive Officer)
February 25, 2025
Jean-Marc Gilson
/S/    M. STEVEN BENDER
Executive Vice President and Chief Financial
  Officer (Principal Financial Officer)
February 25, 2025
M. Steven Bender
/S/    JEFFREY A. HOLY
Vice President and Chief Accounting Officer
  (Principal Accounting Officer)
February 25, 2025
Jeffrey A. Holy
/S/    JAMES CHAO
Senior Chairman of the Board of Directors
February 25, 2025
James Chao
/S/    ALBERT CHAO
Executive Chairman of the Board of Directors
February 25, 2025
Albert Chao
/S/    CATHERINE T. CHAO
DirectorFebruary 25, 2025
Catherine T. Chao
/S/    DAVID T. CHAO
DirectorFebruary 25, 2025
David T. Chao
/S/    JOHN T. CHAO
DirectorFebruary 25, 2025
John T. Chao
/S/    ROGER A. CREGG
DirectorFebruary 25, 2025
Roger A. Cregg
/S/    MICHAEL J. GRAFF
DirectorFebruary 25, 2025
Michael J. Graff
/S/    KIMBERLY S. LUBEL
DirectorFebruary 25, 2025
Kimberly S. Lubel
/S/    MARK A. MCCOLLUM
DirectorFebruary 25, 2025
Mark A. McCollum
/S/    R. BRUCE NORTHCUTT
DirectorFebruary 25, 2025
R. Bruce Northcutt
/S/    CAROLYN C. SABAT
DirectorFebruary 25, 2025
Carolyn C. Sabat
/S/    JEFFREY W. SHEETS
DirectorFebruary 25, 2025
Jeffrey W. Sheets
115

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