WESTLAKE CORP - Quarter Report: 2019 June (Form 10-Q)

Large accelerated filer

Accelerated filer

Non-accelerated filer

Smaller reporting company

Emerging growth company

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q



☑	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
	For the quarterly period ended	June 30, 2019



☐	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
	For the Transition Period from to

Commission File No. 001-32260

Westlake Chemical Corporation

(Exact name of Registrant as specified in its charter)



Delaware		76-0346924
(State or other jurisdiction of incorporation or organization)		(I.R.S. Employer Identification Number)

2801 Post Oak Boulevard, Suite 600

Houston, Texas 77056

(Address of principal executive offices, including zip code)

(713) 960-9111

(Registrant's telephone number, including area code)

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



Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock	WLK	The New York Stock Exchange

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

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes x No ¨

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

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act) Yes ☐ No x

The number of shares outstanding of the registrant's sole class of common stock as of July 30, 2019 was 128,268,740.

INDEX




Item	Page
PART I. FINANCIAL INFORMATION
1) Financial Statements	1
2) Management's Discussion and Analysis of Financial Condition and Results of Operations	20
3) Quantitative and Qualitative Disclosures about Market Risk	32
4) Controls and Procedures	33

PART II. OTHER INFORMATION
1) Legal Proceedings	33
1A) Risk Factors	34
2) Unregistered Sales of Equity Securities and Use of Proceeds	35
6) Exhibits	36

Table of Contents

PART I. FINANCIAL INFORMATION

Item 1. Financial Statements

WESTLAKE CHEMICAL CORPORATION

CONSOLIDATED BALANCE SHEETS

(Unaudited)



	June 30, 2019			December 31, 2018

	(in millions of dollars, except par values and share amounts)
ASSETS
Current assets
Cash and cash equivalents	$	409		$	753
Accounts receivable, net	1,213			1,037
Inventories	925			1,014
Prepaid expenses and other current assets	48			38
Total current assets	2,595			2,842
Property, plant and equipment, net	6,832			6,595
Operating lease right-of-use assets	381			—
Goodwill	1,079			1,002
Customer relationships, net	559			525
Other intangible assets, net	204			134
Other assets, net	566			504
Total assets	$	12,216		$	11,602
LIABILITIES AND EQUITY
Current liabilities
Accounts and notes payable	$	521		$	507
Accrued and other liabilities	733			676
Total current liabilities	1,254			1,183
Long-term debt, net	2,669			2,668
Deferred income taxes	1,206			1,159
Pension and other post-retirement benefits	334			337
Operating lease liabilities	294			—
Other liabilities	200			179
Total liabilities	5,957			5,526
Commitments and contingencies (Note 15)
Stockholders' equity
Preferred stock, $0.01 par value, 50,000,000 shares authorized; no shares issued and outstanding	—			—
Common stock, $0.01 par value, 300,000,000 shares authorized; 134,651,380 and 134,651,380 shares issued at June 30, 2019 and December 31, 2018, respectively	1			1
Common stock, held in treasury, at cost; 6,382,640 and 6,183,125 shares at June 30, 2019 and December 31, 2018, respectively	(390		)	(382		)
Additional paid-in capital	558			556
Retained earnings	5,600			5,477
Accumulated other comprehensive loss	(50		)	(62		)
Total Westlake Chemical Corporation stockholders' equity	5,719			5,590
Noncontrolling interests	540			486
Total equity	6,259			6,076
Total liabilities and equity	$	12,216		$	11,602

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

Table of Contents

WESTLAKE CHEMICAL CORPORATION

CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited)



	Three Months Ended June 30,						Six Months Ended June 30,
	2019			2018			2019			2018

	(in millions of dollars, except per share data and share amounts)
Net sales	$	2,144		$	2,235		$	4,169		$	4,385
Cost of sales	1,804			1,683			3,530			3,291
Gross profit	340			552			639			1,094
Selling, general and administrative expenses	117			115			233			223
Amortization of intangibles	27			25			54			51
Restructuring, transaction and integration-related costs	2			8			24			15
Income from operations	194			404			328			805
Other income (expense)
Interest expense	(28		)	(31		)	(58		)	(68		)
Other income, net	2			8			11			30
Income before income taxes	168			381			281			767
Provision for income taxes	39			93			70			182
Net income	129			288			211			585
Net income attributable to noncontrolling interests	10			10			20			20
Net income attributable to Westlake Chemical Corporation	$	119		$	278		$	191		$	565
Earnings per common share attributable to Westlake Chemical Corporation:
Basic	$	0.92		$	2.13		$	1.48		$	4.34
Diluted	$	0.92		$	2.12		$	1.47		$	4.31
Weighted average common shares outstanding:
Basic	128,485,182			129,624,291			128,506,712			129,554,528
Diluted	128,850,335			130,306,615			128,881,952			130,249,084

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

Table of Contents

WESTLAKE CHEMICAL CORPORATION

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited)



	Three Months Ended June 30,						Six Months Ended June 30,
	2019			2018			2019			2018

	(in millions of dollars)
Net income	$	129		$	288		$	211		$	585
Other comprehensive income (loss), net of income taxes
Foreign currency translation adjustments
Foreign currency translation	15			(37		)	13			(43		)
Income tax benefit (provision) on foreign currency translation	(2		)	(3		)	(2		)	1
Other comprehensive income (loss), net of income taxes	13			(40		)	11			(42		)
Comprehensive income	142			248			222			543
Comprehensive income attributable to noncontrolling interests, net of tax of $0 and $1 for the three months ended June 30, 2019 and 2018; and net of tax of $1 and $2 for the six months ended June 30, 2019 and 2018, respectively	9			6			19			18
Comprehensive income attributable to Westlake Chemical Corporation	$	133		$	242		$	203		$	525

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

Table of Contents

WESTLAKE CHEMICAL CORPORATION

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY

(Unaudited)



	Common Stock			Common Stock, Held in Treasury
	Number of Shares	Amount		Number of Shares		At Cost			Additional Paid-in Capital			Retained Earnings			Accumulated Other Comprehensive Income (Loss)			Noncontrolling Interests			Total

	(in millions of dollars, except share amounts)
Balances at December 31, 2018	134,651,380	$	1	6,183,125		$	(382	)	$	556		$	5,477		$	(62	)	$	486		$	6,076
Net income	—	—		—		—			—			72			—			10			82
Other comprehensive loss	—	—		—		—			—			—			(2		)	—			(2		)
Shares issued—stock-based compensation	—	—		(124,052	)	11			(8		)	(3		)	—			—			—
Stock-based compensation	—	—		—		—			7			—			—			—			7
Dividends declared	—	—		—		—			—			(33		)	—			—			(33		)
Distributions to noncontrolling interests	—	—		—		—			—			—			—			(8		)	(8		)
Issuance of Westlake Chemical Partners LP common units	—	—		—		—			(2		)	—			—			65			63
Balances at March 31, 2019	134,651,380	1		6,059,073		(371		)	553			5,513			(64		)	553			6,185
Net income	—	—		—		—			—			119			—			10			129
Other comprehensive income (loss)	—	—		—		—			—			—			14			(1		)	13
Common stock repurchased	—	—		342,740		(20		)	—			—			—			—			(20		)
Shares issued—stock-based compensation	—	—		(19,173	)	1			(1		)	—			—			—			—
Stock-based compensation	—	—		—		—			6			—			—			—			6
Dividends declared	—	—		—		—			—			(32		)	—			—			(32		)
Distributions to noncontrolling interests	—	—		—		—			—			—			—			(22		)	(22		)
Balances at June 30, 2019	134,651,380	$	1	6,382,640		$	(390	)	$	558		$	5,600		$	(50	)	$	540		$	6,259

Table of Contents

WESTLAKE CHEMICAL CORPORATION

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY

(Unaudited)



	Common Stock			Common Stock, Held in Treasury
	Number of Shares	Amount		Number of Shares		At Cost			Additional Paid-in Capital			Retained Earnings			Accumulated Other Comprehensive Income (Loss)			Noncontrolling Interests			Total

	(in millions of dollars, except share amounts)
Balances at December 31, 2017	134,651,380	$	1	5,232,875		$	(302	)	$	555		$	4,613		$	7		$	495		$	5,369
Cumulative effect of accounting change	—	—		—		—			—			1			—			—			1
Net income	—	—		—		—			—			287			—			10			297
Other comprehensive income (loss)	—	—		—		—			—			—			(4		)	2			(2		)
Shares issued—stock-based compensation	—	—		(175,143	)	10			(4		)	—			—			—			6
Stock-based compensation	—	—		—		—			4			—			—			—			4
Dividends declared	—	—		—		—			—			(27		)	—			—			(27		)
Distributions to noncontrolling interests	—	—		—		—			—			—			—			(7		)	(7		)
Balances at March 31, 2018	134,651,380	1		5,057,732		(292		)	555			4,874			3			500			5,641
Net income	—	—		—		—			—			278			—			10			288
Other comprehensive loss	—	—		—		—			—			—			(36		)	(4		)	(40		)
Shares issued—stock-based compensation	—	—		(57,967	)	3			(1		)	—			—			—			2
Stock-based compensation	—	—		—		—			4			—			—			—			4
Dividends declared	—	—		—		—			—			(27		)	—			—			(27		)
Distributions to noncontrolling interests	—	—		—		—			—			—			—			(22		)	(22		)
Balances at June 30, 2018	134,651,380	$	1	4,999,765		$	(289	)	$	558		$	5,125		$	(33	)	$	484		$	5,846

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

Table of Contents

WESTLAKE CHEMICAL CORPORATION

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)



	Six Months Ended June 30,
	2019			2018

	(in millions of dollars)
Cash flows from operating activities
Net income	$	211		$	585
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	347			312
Stock-based compensation expense	13			11
Disposition and write-off of property, plant and equipment	27			15
Deferred income taxes	15			45
Other losses, net	16			—
Changes in operating assets and liabilities
Accounts receivable	(119		)	(272		)
Inventories	125			(9		)
Prepaid expenses and other current assets	(8		)	(13		)
Accounts payable	(40		)	(11		)
Accrued and other liabilities	(62		)	(70		)
Other, net	(58		)	(44		)
Net cash provided by operating activities	467			549
Cash flows from investing activities
Acquisition of businesses, net of cash acquired	(314		)	—
Additions to property, plant and equipment	(411		)	(312		)
Additions to investments in unconsolidated subsidiaries	(42		)	(45		)
Other, net	4			3
Net cash used for investing activities	(763		)	(354		)
Cash flows from financing activities
Dividends paid	(65		)	(54		)
Distributions to noncontrolling interests	(30		)	(29		)
Proceeds from notes payable	7			6
Proceeds from issuance of Westlake Chemical Partners LP common units	63			—
Redemption and repayment of notes payable	(5		)	(1,173		)
Repurchase of common stock for treasury	(20		)	—
Other	2			8
Net cash used for financing activities	(48		)	(1,242		)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	—			(2		)
Net decrease in cash, cash equivalents and restricted cash	(344		)	(1,049		)
Cash, cash equivalents and restricted cash at beginning of period	775			1,554
Cash, cash equivalents and restricted cash at end of period	$	431		$	505

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

Table of Contents

WESTLAKE CHEMICAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(in millions of dollars, except share amounts and per share data)

1. Basis of Financial Statements

The accompanying unaudited consolidated interim financial statements were prepared in accordance with the rules and regulations of the Securities and Exchange Commission (the "SEC") for interim periods. Accordingly, certain information and footnotes required for complete financial statements under generally accepted accounting principles in the United States ("U.S. GAAP") have not been included. These interim consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto of Westlake Chemical Corporation (the "Company") included in the annual report on Form 10-K for the fiscal year ended December 31, 2018 (the "2018 Form 10-K"), filed with the SEC on February 20, 2019. These consolidated financial statements have been prepared in conformity with the accounting principles and practices as disclosed in the notes to the consolidated financial statements of the Company for the fiscal year ended December 31, 2018 with the exception of those accounting standards adopted in 2019 as discussed in Note 1.

In the opinion of the Company's management, the accompanying unaudited consolidated interim financial statements reflect all adjustments (consisting only of normal recurring adjustments) that are necessary for a fair statement of the Company's financial position as of June 30, 2019, its results of operations for the three and six months ended June 30, 2019 and 2018, and the changes in its cash position for the six months ended June 30, 2019 and 2018.

Results of operations and changes in cash position for the interim periods presented are not necessarily indicative of the results that will be realized for the fiscal year ending December 31, 2019 or any other interim period. The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and the disclosure of contingent assets and liabilities. Actual results could differ from those estimates.

Recent Accounting Pronouncements

Credit Losses (ASU No. 2016-13)

In June 2016, the Financial Accounting Standards Board ("FASB") issued an accounting standards update providing new guidance for the accounting for credit losses on loans and other financial instruments. The new guidance introduces an approach based on expected losses to estimate credit losses on certain types of financial instruments. The standard also modifies the impairment model for available-for-sale debt securities and provides for a simplified accounting model for purchased financial assets with credit deterioration since their origination. The accounting standard will be effective for reporting periods beginning after December 15, 2019 and is not expected to have a material impact on the Company's consolidated financial position, results of operations and cash flows.

Intangibles - Goodwill and Other (ASU No. 2017-04)

In January 2017, the FASB issued an accounting standards update to simplify the subsequent measurement of goodwill. The guidance removes Step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. A goodwill impairment will now be the amount by which a reporting unit's carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. The accounting standard will be effective for reporting periods beginning after December 15, 2019 and is not expected to have a material impact on the Company's consolidated financial position, results of operations and cash flows.

Fair Value Measurement (ASU No. 2018-13)

In August 2018, the FASB issued an accounting standards update to modify the disclosure requirements on fair value measurements. The amendments are effective for periods beginning after December 15, 2019. An entity is permitted to early adopt any removed or modified disclosures and delay adoption of the additional disclosures until the effective date. Most amendments should be applied retrospectively, but certain amendments will be applied prospectively. The Company is in the process of assessing the impact of the standard on the Company's fair value disclosures. However, the standard is not expected to have an impact on the Company's consolidated financial position, results of operations and cash flows.

WESTLAKE CHEMICAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—Continued

(Unaudited)

(in millions of dollars, except share amounts and per share data)

Recently Adopted Accounting Standards

Leases (ASU No. 2016-02)

In February 2016, the FASB issued an accounting standards update on lease accounting that supersedes the previously issued leases guidance. The new standard requires lessees to recognize assets and liabilities for all long-term operating leases. An asset is recognized for the right to use an underlying leased asset and a liability is recognized for the obligation to make payments over the lease term. The standard also requires expanded lease disclosures. The standard requires a modified retrospective adoption approach and allows for the election of certain transition expedients.

The Company adopted the standard January 1, 2019 using the optional transition method which allows entities to recognize a cumulative adjustment to the opening balance sheet in the period of adoption. The Company elected the package of optional transition expedients and was not required to reassess (1) whether any existing contracts are or contain leases, (2) classification of existing leases as operating or capital or (3) whether initial direct costs for existing leases qualify for capitalization under the new accounting standard. The Company did not elect the use of hindsight to determine the lease term when considering lease renewal or termination options. Additionally, the Company elected to continue accounting for existing land easements under its accounting policies that were in effect prior to adoption of the new lease standard.

The following amounts were recorded as a result of adopting the new lease standard on January 1, 2019:



Operating Lease Assets and Liabilities	Balance Sheet Location	Amounts Recorded in the Consolidated Balance Sheet January 1, 2019
Right-of-use assets	Operating lease right-of-use assets	$	421
Current lease liabilities	Accrued and other liabilities	(94		)
Non-current lease liabilities	Operating lease liabilities	(331		)
Deferred rent	Other liabilities	4

2. Financial Instruments

Cash Equivalents

The Company had $50 and $10 of held-to-maturity securities with original maturities of three months or less, primarily consisting of corporate debt securities, classified as cash equivalents at June 30, 2019 and December 31, 2018, 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 $22 and $22 at June 30, 2019 and December 31, 2018. The Company's restricted cash and cash equivalents are 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. Accounts Receivable

Accounts receivable consist of the following:



	June 30, 2019			December 31, 2018
Trade customers	$	1,152		$	969
Related parties	8			6
Allowance for doubtful accounts	(24		)	(23		)
	1,136			952
Federal and state taxes	51			57
Other	26			28
Accounts receivable, net	$	1,213		$	1,037

WESTLAKE CHEMICAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—Continued

(Unaudited)

(in millions of dollars, except share amounts and per share data)

4. Inventories

Inventories consist of the following:



	June 30, 2019		December 31, 2018
Finished products	$	558	$	657
Feedstock, additives, chemicals and other raw materials	212		203
Materials and supplies	155		154
Inventories	$	925	$	1,014

5. Leases

The Company is obligated under various long-term and short-term operating leases for rail cars, buildings, land and other transportation and storage assets. The Company determines whether an arrangement is, or contains, a lease at contract inception. Some of the Company's arrangements contain both lease and non-lease components. For certain transportation equipment leases, the Company accounts for the lease and non-lease components as a single lease component. The Company records right-of-use assets and corresponding lease liabilities for operating leases with terms greater than one year. Operating lease right-of-use assets and liabilities are recorded at the present value of the fixed lease payments over the life of the lease. The majority of the Company's leases do not provide an implicit rate. Therefore, the Company uses its incremental borrowing rate at lease commencement to measure operating lease right-of-use assets and lease liabilities. Certain of the Company's leases provide for renewal and purchase options. Renewal and purchase options are evaluated at lease commencement and included in the lease term if they are reasonably certain to be exercised. Short-term leases are recognized in rental expense on a straight-line basis over the lease term and are not recorded in the consolidated balance sheets. The Company's finance leases are not material to the consolidated financial statements.

Lease related asset and liability balances were as follows:



	June 30, 2019
Operating Leases
Right-of-use assets	$	381

Accrued and other liabilities	$	91
Operating lease liabilities	294
Total operating lease liabilities	$	385

Weighted Average Remaining Term (in years)	7
Weighted Average Lease Discount Rate	3.5		%

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 statement of operations for the three and six months ended June 30, 2019. The components of operating lease expense were as follows:



	Three Months Ended June 30, 2019		Six Months Ended June 30, 2019
Operating lease cost ⁽¹⁾	$	28	$	56
Short-term lease cost	14		28
Total operating lease cost	$	42	$	84

_____________


(1)	Includes fixed lease payments for operating leases recorded in the consolidated balance sheet.

WESTLAKE CHEMICAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—Continued

(Unaudited)

(in millions of dollars, except share amounts and per share data)

Maturities of lease liabilities were as follows at June 30, 2019:



	Operating Leases
2019 (excluding the six months ended June 30, 2019)	$	54
2020	92
2021	71
2022	56
2023	43
Thereafter	147
Total lease payments	463
Less: imputed interest	(78		)
Present value of lease liabilities	$	385

Future lease commitments for operating lease obligations were as follows at December 31, 2018:



	Operating Leases
2019	$	94
2020	89
2021	70
2022	56
2023	42
Thereafter	152
Total lease payments	$	503

6. Goodwill

The gross carrying amounts and changes in the carrying amount of goodwill for the six months ended June 30, 2019 were as follows:



	Olefins Segment		Vinyls Segment		Total
Balances at December 31, 2018	$	30	$	972	$	1,002
Goodwill acquired during the period	—		74		74
Effects of changes in foreign exchange rates	—		3		3
Balances at June 30, 2019	$	30	$	1,049	$	1,079

The Company performed its annual impairment assessment for the Vinyls reporting units during the second quarter of 2019 and did not identify any impairment.

7. Accounts and Notes Payable

Accounts and notes payable consist of the following:



	June 30, 2019		December 31, 2018
Accounts payable—third parties	$	494	$	504
Accounts payable to related parties	1		2
Notes payable	26		1
Accounts and notes payable	$	521	$	507

WESTLAKE CHEMICAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—Continued

(Unaudited)

(in millions of dollars, except share amounts and per share data)

8. Long-Term Debt

Long-term debt consists of the following:



	June 30, 2019							December 31, 2018
	Principal Amount		Unamortized Discount and Debt Issuance Costs			Net Long-term Debt		Principal Amount		Unamortized Discount and Debt Issuance Costs			Net Long-term Debt
3.60% senior notes due 2022 (the "3.60% 2022 Senior Notes")	$	250	$	(1	)	$	249	$	250	$	(1	)	$	249
3.60% senior notes due 2026 (the "3.60% 2026 Senior Notes")	750		(8		)	742		750		(9		)	741
Loan related to tax-exempt waste disposal revenue bonds due 2027	11		—			11		11		—			11
6 ½% senior notes due 2029 (the "6 ½% 2029 GO Zone Senior Notes")	100		(1		)	99		100		(1		)	99
6 ½% senior notes due 2035 (the "6 ½% 2035 GO Zone Senior Notes")	89		(1		)	88		89		(1		)	88
6 ½% senior notes due 2035 (the "6 ½% 2035 IKE Zone Senior Notes")	65		—			65		65		—			65
5.0% senior notes due 2046 (the "5.0% 2046 Senior Notes")	700		(24		)	676		700		(24		)	676
4.375% senior notes due 2047 (the "4.375% 2047 Senior Notes")	500		(9		)	491		500		(9		)	491
3.50% senior notes due 2032 (the "3.50% 2032 GO Zone Refunding Senior Notes")	250		(2		)	248		250		(2		)	248
Total Long-term debt	$	2,715	$	(46	)	$	2,669	$	2,715	$	(47	)	$	2,668

Credit Agreement

The Company has a $1,000 revolving credit facility that is scheduled to mature on July 24, 2023 (the "Credit Agreement"). The Credit Agreement bears interest at either (a) LIBOR plus a spread ranging from 1.00% to 1.75% or (b) Alternate Base Rate plus a spread ranging from 0.00% to 0.75% in each case depending on the credit rating of the Company. At June 30, 2019, the Company had no borrowings outstanding under the Credit Agreement. As of June 30, 2019, the Company had no outstanding letters of credit and borrowing availability of $1,000 under the Credit Agreement. The Credit Agreement contains certain affirmative and negative covenants, including a quarterly total leverage ratio financial maintenance covenant. As of June 30, 2019, 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 thereunder and payments of any outstanding amounts 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 $150 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 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 $25, up to a maximum of $500, subject to certain conditions and if certain lenders agree to commit to such an increase.

As of June 30, 2019, the Company was in compliance with all of its long-term debt covenants.

Unamortized debt issuance costs on long-term debt were $24 and $25 at June 30, 2019 and December 31, 2018, respectively.

On July 17, 2019, the Company closed the public offering of €700 million aggregate principal amount of 1.625% Senior Notes due July 17, 2029 (the "1.625% 2029 Senior Notes"). See Note 18—Subsequent Event for more information.

WESTLAKE CHEMICAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—Continued

(Unaudited)

(in millions of dollars, except share amounts and per share data)

9. Accumulated Other Comprehensive Income (Loss)

Changes in accumulated other comprehensive income (loss) by component for the six months ended June 30, 2019 and 2018 were as follows:



	Benefits Liability, Net of Tax		Cumulative Foreign Currency Exchange, Net of Tax			Total
Balances at December 31, 2017	$	43	$	(36	)	$	7
Other comprehensive income (loss) before reclassifications	—		(40		)	(40		)
Net other comprehensive income (loss) attributable to Westlake Chemical Corporation	—		(40		)	(40		)
Balances at June 30, 2018	$	43	$	(76	)	$	(33	)

Balances at December 31, 2018	$	27	$	(89	)	$	(62	)
Other comprehensive income (loss) before reclassifications	—		12			12
Net other comprehensive income (loss) attributable to Westlake Chemical Corporation	—		12			12
Balances at June 30, 2019	$	27	$	(77	)	$	(50	)

10. Fair Value Measurements

The Company reports certain assets and liabilities at fair value, which is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (exit price). Under the accounting guidance for fair value measurements, inputs used to measure fair value are classified in one of three levels:

Level 1: Quoted market prices in active markets for identical assets or liabilities.

Level 2: Observable market-based inputs or unobservable inputs that are corroborated by market data.

Level 3: Unobservable inputs that are not corroborated by market data.

The Company has financial assets and liabilities subject to fair value measures. These financial assets and liabilities include cash and cash equivalents, accounts receivable, net, accounts payable and long-term debt, all of which are recorded at carrying value. The amounts reported in the consolidated balance sheets for cash and cash equivalents, accounts receivable, net and accounts payable approximate their fair value due to the short maturities of these instruments.

The carrying and fair values of the Company's long-term debt are summarized in the table below. The Company's long-term debt instruments are publicly-traded. A market approach, based upon quotes from financial reporting services, is used to measure the fair value of the Company's long-term debt. Because the Company's long-term debt instruments may not be actively traded, the inputs used to measure the fair value of the Company's long-term debt are classified as Level 2 inputs within the fair value hierarchy.

WESTLAKE CHEMICAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—Continued

(Unaudited)

(in millions of dollars, except share amounts and per share data)



	June 30, 2019				December 31, 2018
	Carrying Value		Fair Value		Carrying Value		Fair Value
3.60% 2022 Senior Notes	$	249	$	255	$	249	$	248
3.60% 2026 Senior Notes	742		761		741		692
Loan related to tax-exempt waste disposal revenue bonds due 2027	11		11		11		11
6 ½% 2029 GO Zone Senior Notes	99		104		99		106
6 ½% 2035 GO Zone Senior Notes	88		94		88		95
6 ½% 2035 IKE Zone Senior Notes	65		69		65		69
5.0% 2046 Senior Notes	676		721		676		641
4.375% 2047 Senior Notes	491		475		491		417
3.50% 2032 GO Zone Refunding Senior Notes	248		259		248		233

11. Income Taxes

The effective income tax rates were 23.2% and 24.4% for the three months ended June 30, 2019 and 2018, respectively. The effective income tax rate for the three months ended June 30, 2019 was above the statutory rate of 21.0% primarily due to state taxes. The effective income tax rate for the three months ended June 30, 2018 was above the U.S. federal statutory rate of 21.0% primarily due to certain discrete adjustments related to foreign and state corporate rate changes and state and foreign taxes.

The effective income tax rates were 24.9% and 23.7% for the six months ended June 30, 2019 and 2018, respectively. The effective income tax rate for the six months ended June 30, 2019 was above the statutory rate of 21.0% primarily due to state taxes and the tax effect related to charges associated with the write-off of certain assets. The effective income tax rate for the six months ended June 30, 2018 was above the U.S. federal statutory rate of 21.0% primarily due to certain discrete adjustments related to foreign and state corporate rate changes and state and foreign taxes.

12. Earnings and Dividends per Share

Earnings per Share

The Company has unvested restricted stock units outstanding that are considered participating securities and, therefore, computes basic and diluted earnings per share under the two-class method. The computation of basic earnings per share is based upon the weighted average number of shares of common stock outstanding during each period. Diluted earnings per share includes the effects of certain stock options and performance stock units.



	Three Months Ended June 30,						Six Months Ended June 30,
	2019			2018			2019			2018
Net income attributable to Westlake Chemical Corporation	$	119		$	278		$	191		$	565
Less:
Net income attributable to participating securities	(1		)	(2		)	(1		)	(3		)
Net income attributable to common shareholders	$	118		$	276		$	190		$	562

WESTLAKE CHEMICAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—Continued

(Unaudited)

(in millions of dollars, except share amounts and per share data)

The following table reconciles the denominator for the basic and diluted earnings per share computations shown in the consolidated statements of operations:



	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Weighted average common shares—basic	128,485,182		129,624,291		128,506,712		129,554,528
Plus incremental shares from:
Assumed exercise of options and vesting of performance stock units	365,153		682,324		375,240		694,556
Weighted average common shares—diluted	128,850,335		130,306,615		128,881,952		130,249,084

Earnings per common share attributable to Westlake Chemical Corporation:
Basic	$	0.92	$	2.13	$	1.48	$	4.34
Diluted	$	0.92	$	2.12	$	1.47	$	4.31

Excluded from the computation of diluted earnings per share are options to purchase 562,342 and 172,642 shares of common stock for the three months ended June 30, 2019 and 2018, respectively, and 442,076 and 128,892 shares of common stock for the six months ended June 30, 2019 and 2018, respectively. These options were outstanding during the periods reported but were excluded because the effect of including them would have been antidilutive.

Dividends per Share

Dividends per common share for the three and six months ended June 30, 2019 and 2018 were as follows:



	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Dividends per common share	$	0.25	$	0.21	$	0.50	$	0.42

13. Supplemental Information

Other Assets, net

The Company's investment in a joint venture with Lotte Chemical USA Corporation to build an ethylene facility, LACC, LLC, was $225 and $183 at June 30, 2019 and December 31, 2018, respectively.

Accrued and Other Liabilities

Accrued and other liabilities were $733 and $676 at June 30, 2019 and December 31, 2018, respectively. Accrued rebates, which are a component of accrued and other liabilities, were $93 and $125 at June 30, 2019 and December 31, 2018, respectively. Other than the lease liability disclosed in Note 5, no other component of accrued and other liabilities was more than five percent of total current liabilities. Accrued liabilities with related parties were $38 and $54 at June 30, 2019 and December 31, 2018, respectively.

WESTLAKE CHEMICAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—Continued

(Unaudited)

(in millions of dollars, except share amounts and per share data)

Restructuring, Transaction and Integration-related Costs

For the three months ended June 30, 2019, the restructuring, transaction and integration-related costs of $2 primarily consisted of integration-related consulting fees and costs associated with acquisitions.

For the six months ended June 30, 2019, the restructuring, transaction and integration-related costs primarily consisted of restructuring expenses of $19 related to certain Vinyls segment operations and integration-related consulting fees and costs associated with acquisitions of $5. The restructuring expenses consisted of charges associated with the write-off of certain assets.

Other Income, Net

For the three months ended June 30, 2019 and 2018, other income, net of $2 and $8, respectively, primarily consisted of income from unconsolidated subsidiaries and interest income on cash and cash equivalents.

For the six months ended June 30, 2019, other income, net included income from unconsolidated subsidiaries and interest income on cash and cash equivalents of $5 and $5, respectively. For the six months ended June 30, 2018, other income, net included income from unconsolidated subsidiaries, gain on redemption of senior notes and interest income on cash and cash equivalents of $12, $6 and $6, respectively.

Non-cash Investing Activity

The change in capital expenditure accrual resulted in an increase in additions to property, plant and equipment by $9 for the six months ended June 30, 2019. The change in capital expenditure accrual resulted in a decrease in additions to property, plant and equipment by $18 for the six months ended June 30, 2018.

Operating Lease Supplemental Cash Flow

Supplemental cash flow information related to leases was as follows:



	Six Months Ended June 30, 2019
Operating cash flows from operating leases ⁽¹⁾	$	26
Right-of-use assets obtained in exchange for operating lease obligations	2

_____________


(1)	Includes cash paid for amounts included in the measurement of operating lease liabilities recorded in the consolidated balance sheets. For the six months ended June 30, 2019, finance lease related cash flows used for operating and financing activities were not material to the consolidated statement of cash flows.

14. Acquisition

NAKAN^TM

On January 2, 2019, the Company acquired all of the outstanding equity interests in the parent entity of the NAKAN^TMglobal compounding solutions business. NAKAN's products are used in a wide-variety of applications, including in the automotive, building and construction, and medical industries.

The closing purchase price of $249 was paid with available cash on hand. The acquisition is being accounted for under the acquisition method of accounting. The assets acquired and liabilities assumed and the results of operations of NAKAN are included in the Vinyls segment.

NAKAN's net sales and earnings since the acquisition date were not material to the Company's consolidated statement of operations for the six months ended June 30, 2019. The acquisition-related costs recognized in the consolidated statement of operation for the six months ended June 30, 2019 were not material. The pro forma impact of this business combination has not been presented as it is not material to the Company's consolidated statements of operations for the six months ended June 30, 2019 and 2018.

WESTLAKE CHEMICAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—Continued

(Unaudited)

(in millions of dollars, except share amounts and per share data)

The following table summarizes the estimated fair value of identified assets acquired and liabilities assumed at the date of acquisition. The preliminary allocation of consideration transferred is based on management's estimates, judgments and assumptions. When determining the fair values of assets acquired and liabilities assumed, management made significant estimates, judgments and assumptions. These estimates, judgments and assumptions are subject to change upon final valuation and should be treated as preliminary values. Management estimated that consideration paid exceeded the fair value of the net assets acquired. Therefore, goodwill of $40 was recorded. The goodwill recognized is primarily attributable to the expected values to be achieved from the acquisition.

The information below represents the preliminary purchase price allocation:



Cash	$	10
Accounts receivable	53
Inventories	40
Prepaid expenses and other current assets	7
Property, plant and equipment	75
Operating lease right-of-use assets	3
Intangible assets:
Customer relationships (weighted average lives of 17 years)	65
Technology (weighted average lives of 14 years)	40
Trade name (life of 15 years)	25
Other assets	12
Total assets acquired	330
Accounts and notes payable	57
Accrued and other liabilities	18
Deferred income taxes	31
Pension and other post-retirement benefits	4
Operating lease liabilities	3
Other long-term liabilities	8
Total liabilities assumed	121
Total identifiable net assets acquired	209
Goodwill	40
Total purchase consideration	$	249

15. Commitments and Contingencies

The Company is involved in a number of legal and regulatory matters, principally environmental in nature, that are incidental to the normal conduct of its business, including lawsuits, investigations and claims. The outcome of these matters are inherently unpredictable. The Company believes that, in the aggregate, the outcome of all known legal and regulatory matters will not have a material adverse effect on its consolidated financial statements; however, under certain circumstances, if required to recognize costs in a specific period, when combined with other factors, outcomes with respect to such matters may be material to the Company's consolidated statements of operations in such period. The Company's assessment of the potential impact of environmental matters, in particular, is subject to uncertainty due to the complex, ongoing and evolving process of investigation and remediation of such environmental matters, and the potential for technological and regulatory developments. In addition, the impact of evolving claims and programs, such as natural resource damage claims, industrial site reuse initiatives and state remediation programs creates further uncertainty of the ultimate resolution of these matters. The Company anticipates that the resolution of many legal and regulatory matters, and in particular environmental matters, will occur over an extended period of time.

WESTLAKE CHEMICAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—Continued

(Unaudited)

(in millions of dollars, except share amounts and per share data)

The Company and other caustic soda producers were named as defendants in eight purported class action civil lawsuits filed in March, April and July 2019 in the U.S. District Court for the Western District of New York. The lawsuits allege the defendants conspired to fix, raise, maintain and stabilize the price of caustic soda, restrict domestic (U.S.) supply of caustic soda and allocate caustic soda customers. The other defendants named in the lawsuits are Olin Corporation, K.A. Steel Chemicals (a wholly owned subsidiary of Olin), Occidental Petroleum Corporation, Occidental Chemical Corporation d/b/a OxyChem, Shin-Etsu Chemical Co., Ltd., Shintech Incorporated, Formosa Plastics Corporation, and Formosa Plastics Corporation, U.S.A. The lawsuits are filed on behalf of the respective named plaintiffs and a putative class comprised of all persons and entities who purchased caustic soda in the U.S. directly from one or more of the defendants, their parents, predecessors, subsidiaries or affiliates at any time between October 1, 2015 and the present. Plaintiffs seek an unspecified amount of damages and injunctive relief. The Company believes the claims are without merit and intends to defend against them vigorously. 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.

Environmental. As of June 30, 2019 and December 31, 2018, the Company had reserves for environmental contingencies totaling approximately $49 and $54, 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.

Calvert City Proceedings. For several years, the Environmental Protection Agency (the "EPA") has been conducting remedial investigation and feasibility studies at the Company's Calvert City, Kentucky facility pursuant to the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 ("CERCLA"). As the current owner of the Calvert City facility, the Company was named by the EPA as a potentially responsible party ("PRP") along with Goodrich Corporation ("Goodrich") and its successor-in-interest, PolyOne Corporation ("PolyOne"). On November 30, 2017, the EPA published a draft Proposed Plan, incorporating by reference an August 2015 draft Remedial Investigation ("RI") report, an October 2017 draft Feasibility Study ("FS") report and a new Technical Impracticability Waiver document dated December 19, 2017. On June 18, 2018, the EPA published an amendment to its Proposed Plan. The amended Proposed Plan describes a final remedy for the onshore portion of the site comprised of a containment wall, targeted treatment and supplemental hydraulic containment. The amended Proposed Plan also describes an interim approach to address the contamination under the river that would include recovery of any mobile contaminants by an extraction well along with further study of the extent of the contamination and potential treatment options. The EPA's estimated cost of implementation is $107, with an estimated $1 to $3 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, 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. 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 PolyOne. These agreements are the subject of further litigation as 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 PolyOne, and that predecessor assumed Goodrich's indemnification obligations relating to preexisting contamination. In 2003, litigation arose among the Company, Goodrich and PolyOne with respect to the allocation of the cost of remediating contamination at the site. The parties settled this litigation in December 2007 and the case was dismissed. In the settlement, the parties agreed that, among other things: (1) PolyOne would pay 100% of the costs (with specified exceptions), net of recoveries or credits from third parties, incurred with respect to environmental issues at the Calvert City site from August 1, 2007 forward; and (2) either the Company or PolyOne might, from time to time in the future (but not more than once every five years), institute an arbitration proceeding to adjust that percentage. In May 2017, PolyOne filed a demand for arbitration. In this proceeding, PolyOne sought to readjust the percentage allocation of future costs and to recover approximately $11 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 PolyOne made payment in full at the beginning of the arbitration hearing.

WESTLAKE CHEMICAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—Continued

(Unaudited)

(in millions of dollars, except share amounts and per share data)

On July 10, 2018, PolyOne 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 PolyOne's suit. On February 13, 2019, PolyOne appealed those decisions to the U.S. Court of Appeals for the Sixth Circuit. Oral argument in that appeal is scheduled for August 1, 2019.

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 PolyOne was responsible for 100% of the allocable costs at issue in the proceeding and that PolyOne would remain responsible for 100% of the costs to operate the existing groundwater remedy at the Calvert City site. This determination is subject to further litigation.

At this time, the Company is not able to estimate the impact, if any, that the issuance of the final award in the arbitration proceeding, or any subsequent judicial proceeding, could have on the Company's consolidated financial statements either in the current period or in later periods. Any cash expenditures that the Company might incur in the future with respect to the remediation of contamination at the Calvert City complex would likely be spread out over an extended period. As a result, the Company believes it is unlikely that any remediation costs allocable to it will be material in terms of expenditures made in any individual reporting period.

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, the Company may be subject to reasonably possible loss contingencies related to environmental matters in the range of $65 to $130.

16. Segment Information

The Company operates in two principal operating segments: Olefins and Vinyls. These segments are strategic business units that offer a variety of different products. The Company manages each segment separately as each business requires different technology and marketing strategies.



	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Net external sales
Olefins
Polyethylene	$	345	$	387	$	682	$	756
Styrene, feedstock and other	132		95		254		229
Total Olefins	477		482		936		985
Vinyls
PVC, caustic soda and other	1,319		1,396		2,626		2,754
Building products	348		357		607		646
Total Vinyls	1,667		1,753		3,233		3,400
	$	2,144	$	2,235	$	4,169	$	4,385

Intersegment sales
Olefins	$	74	$	112	$	166	$	232
Vinyls	1		1		1		1
	$	75	$	113	$	167	$	233

WESTLAKE CHEMICAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—Continued

(Unaudited)

(in millions of dollars, except share amounts and per share data)



	Three Months Ended June 30,						Six Months Ended June 30,
	2019			2018			2019			2018
Income (loss) from operations
Olefins	$	82		$	158		$	119		$	321
Vinyls	129			271			230			537
Corporate and other	(17		)	(25		)	(21		)	(53		)
	$	194		$	404		$	328		$	805

Depreciation and amortization
Olefins	$	36		$	33		$	71		$	67
Vinyls	138			120			272			238
Corporate and other	2			3			4			7
	$	176		$	156		$	347		$	312

Other income (loss), net
Olefins	$	1		$	1		$	3		$	3
Vinyls	2			4			6			16
Corporate and other	(1		)	3			2			11
	$	2		$	8		$	11		$	30

Provision for (benefit from) income taxes
Olefins	$	18		$	36		$	27		$	73
Vinyls	22			69			45			130
Corporate and other	(1		)	(12		)	(2		)	(21		)
	$	39		$	93		$	70		$	182

Capital expenditures
Olefins	$	37		$	26		$	62		$	48
Vinyls	169			128			346			258
Corporate and other	2			4			3			6
	$	208		$	158		$	411		$	312

A reconciliation of total segment income from operations to consolidated income before income taxes is as follows:



	Three Months Ended June 30,						Six Months Ended June 30,
	2019			2018			2019			2018
Income from operations	$	194		$	404		$	328		$	805
Interest expense	(28		)	(31		)	(58		)	(68		)
Other income, net	2			8			11			30
Income before income taxes	$	168		$	381		$	281		$	767



	June 30, 2019		December 31, 2018
Total assets
Olefins	$	2,057	$	2,024
Vinyls	9,766		8,879
Corporate and other	393		699
	$	12,216	$	11,602

WESTLAKE CHEMICAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—Continued

(Unaudited)

(in millions of dollars, except share amounts and per share data)

17. Westlake Chemical Partners LP

In 2014, the Company formed Westlake Chemical Partners LP ("WLKP") to operate, acquire and develop ethylene production facilities and related assets. Also in 2014, WLKP completed its initial public offering of 12,937,500 common units.

On March 29, 2019, WLKP purchased an additional 4.5% newly issued limited partner interest in Westlake Chemical OpCo LP ("OpCo") for approximately $201 and completed a private placement of 2,940,818 common units at a price of $21.40 per common unit for total proceeds of approximately $63. TTWF LP, the Company's principal stockholder and a related party, acquired 1,401,869 units out of 2,940,818 common units issued in the private placement.

At June 30, 2019, WLKP had a 22.8% limited partner interest in OpCo, and the Company retained a 77.2% limited partner interest in OpCo and a significant interest in WLKP through the Company's ownership of WLKP's general partner, 40.1% of limited partner interest (consisting of 14,122,230 common units) and incentive distribution rights.

18. Subsequent Event

On July 17, 2019, the Company closed the public offering of €700 million aggregate principal amount of 1.625% 2029 Senior Notes. The Company received approximately $779 of net proceeds from the offering. The 1.625% 2029 Senior Notes will accrue interest from July 17, 2019 at a rate of 1.625% per annum, payable annually in arrears on July 17 of each year, beginning July 17, 2020. The terms of the 1.625% 2029 Senior Notes contain covenants that, among other things and subject to certain exceptions, restrict the Company's and certain of its subsidiaries' ability to incur certain secured indebtedness, engage in certain sale and leaseback transactions and consolidate, merge or transfer all or substantially all of its assets.

Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations

This discussion and analysis should be read in conjunction with information contained in the accompanying unaudited consolidated interim financial statements of Westlake Chemical Corporation ("Westlake" or the "Company") and the notes thereto and the consolidated financial statements and notes thereto of Westlake Chemical Corporation included in Westlake Chemical Corporation's Annual Report on Form 10-K for the fiscal year ended December 31, 2018 (the "2018 Form 10-K"). The following discussion contains forward-looking statements. Please read "Forward-Looking Statements" for a discussion of limitations inherent in such statements.

We are a vertically integrated global manufacturer and marketer of chemicals, polymers and building products. Our two principal operating segments are Olefins and Vinyls. We use the majority of our internally-produced basic chemicals to produce higher value-added chemicals and building products.

Consumption of the basic chemicals that we manufacture in the commodity portions of our olefins and vinyls processes has increased significantly since we began operations in 1986. Our olefins and vinyls products are some of the most widely used chemicals in the world and are upgraded into a wide variety of higher value-added chemical products used in many end-markets. Petrochemicals are typically manufactured in large volume by a number of different producers using widely available technologies. The petrochemical industry exhibits cyclical commodity characteristics, and margins are influenced by changes in the balance between supply and demand and the resulting operating rates, the level of general economic activity and the price of raw materials. The cycle is generally characterized by periods of tight supply, leading to high operating rates and margins, followed by a decline in operating rates and margins primarily as a result of excess new capacity additions. Due to the significant size of new plants, capacity additions are built in large increments and typically require several years of demand growth to be absorbed.

Table of Contents

Ethane-based ethylene producers have in the recent past experienced a cost advantage over naphtha-based ethylene producers during periods of higher crude oil prices. This cost advantage has resulted in a strong export market for polyethylene and other ethylene derivatives and has benefited operating margins and cash flows for our Olefins segment during such periods. However, we have seen a significant reduction in the cost advantage enjoyed by North American ethane-based ethylene producers due to lower crude oil prices from the third quarter of 2014 through the second quarter of 2019, which has resulted in reduced prices and lower margins for our Olefins segment. Further, our Olefins segment has experienced lower profitability in recent periods due to new ethylene and polyethylene capacity additions in North America and Asia that have led to additional supply and lower prices of ethylene and polyethylene. Looking forward, new ethylene and polyethylene capacity additions in North America, Asia and the Middle East will add additional supply and may continue to contribute to periods of lower profitability in our Olefins segment.

Since late 2010, the PVC industry in the U.S. has experienced an increase in PVC resin exports, driven largely by more competitive feedstock and energy cost positions in the U.S. As a consequence, the U.S. PVC resin industry operating rates have improved since 2010. In addition, our 2014 acquisition of Vinnolit Holdings GmbH and its subsidiary companies, an integrated global leader in specialty PVC resins, has contributed to improved operating margins and cash flows for our Vinyls segment. The acquisition of Axiall Corporation ("Axiall") in 2016 contributed to a significant increase in our chlor-alkali and PVC resin production capacities. Westlake is the second-largest chlor-alkali producer and the second-largest PVC producer in the world. Globally, there were large chlor-alkali capacity additions between 2008 and 2015 resulting in excess capacity and lower industry operating rates which exerted downward pressure on caustic soda pricing. From 2015 through the end of 2018, the capacity additions have been outpaced by an increase in demand driven by improving economic growth and U.S. producers' competitive export position, which has resulted in improved operating rates and caustic soda pricing.

Since the end of 2018, the uncertainties surrounding international trade have impacted both domestic and export prices for our products. Depending on the performance of the global economy, the potential changes in international trade and tariffs policies and the trend of crude oil prices in the remainder of 2019 and beyond, our financial condition, results of operations or cash flows could be negatively or positively impacted.

Non-GAAP Financial Measures

The body of accounting principles generally accepted in the United States is commonly referred to as "GAAP." For this purpose, a non-GAAP financial measure is generally defined by the Securities and Exchange Commission ("SEC") as one that purports to measure historical or future financial performance, financial position or cash flows that (1) excludes amounts, or is subject to adjustments that have the effect of excluding amounts, that are included in the most directly comparable measure calculated and presented in accordance with GAAP in the statement of income, balance sheet or statement of cash flows (or equivalent statements) of the registrant; or (2) includes amounts, or is subject to adjustments that have the effect of including amounts, that are excluded from the most directly comparable measure so calculated and presented. In this report, we disclose non-GAAP financial measures, primarily earnings before interest, taxes, depreciation and amortization ("EBITDA"). EBITDA is calculated as net income before interest expense, income taxes, depreciation and amortization. The non-GAAP financial measures described in this Form 10-Q are not substitutes for the GAAP measures of earnings and cash flows.

EBITDA is included in this Form 10-Q because our management considers it an important supplemental measure of our performance and believes that it is frequently used by securities analysts, investors and other interested parties in the evaluation of companies in our industry, some of which present EBITDA when reporting their results. We regularly evaluate our performance as compared to other companies in our industry that have different financing and capital structures and/or tax rates by using EBITDA. In addition, we utilize EBITDA in evaluating acquisition targets. Management also believes that EBITDA is a useful tool for measuring our ability to meet our future debt service, capital expenditures and working capital requirements, and EBITDA is commonly used by us and our investors to measure our ability to service indebtedness. EBITDA is not a substitute for the GAAP measures of earnings or of cash flows and is not necessarily a measure of our ability to fund our cash needs. In addition, it should be noted that companies calculate EBITDA differently and, therefore, EBITDA as presented for us may not be comparable to EBITDA reported by other companies. EBITDA has material limitations as a performance measure because it excludes interest expense, depreciation and amortization, and income taxes.

A reconciliation of EBITDA to net income, income from operations and net cash provided by operating activities is included in the Results of Operations section below.

Recent Developments

On July 17, 2019, we closed the public offering of €700 million aggregate principal amount of the 1.625% 2029 Senior Notes. The Company received approximately $779 million of net proceeds from the offering. See "Liquidity and Capital Resources—Debt" for more information.

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Results of Operations



	Three Months Ended June 30,						Six Months Ended June 30,
	2019			2018			2019			2018

	(dollars in millions, except per share data)
Net external sales
Olefins
Polyethylene	$	345		$	387		$	682		$	756
Styrene, feedstock and other	132			95			254			229
Total Olefins	477			482			936			985
Vinyls
PVC, caustic soda and other	1,319			1,396			2,626			2,754
Building products	348			357			607			646
Total Vinyls	1,667			1,753			3,233			3,400
Total	$	2,144		$	2,235		$	4,169		$	4,385

Income (loss) from operations
Olefins	$	82		$	158		$	119		$	321
Vinyls	129			271			230			537
Corporate and other	(17		)	(25		)	(21		)	(53		)
Total income from operations	194			404			328			805
Interest expense	(28		)	(31		)	(58		)	(68		)
Other income, net	2			8			11			30
Provision for income taxes	39			93			70			182
Net income	129			288			211			585
Net income attributable to noncontrolling interests	10			10			20			20
Net income attributable to Westlake Chemical Corporation	$	119		$	278		$	191		$	565
Diluted earnings per share	$	0.92		$	2.12		$	1.47		$	4.31
EBITDA ⁽¹⁾	$	372		$	568		$	686		$	1,147

_____________


(1)	See "Reconciliation of EBITDA to Net Income, Income from Operations and Net Cash Provided by Operating Activities" below.

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	Three Months Ended June 30, 2019				Six Months Ended June 30, 2019
	Average Sales Price		Volume		Average Sales Price		Volume
Product sales price and volume percentage change from prior-year period
Olefins	-21.2	%	+20.1	%	-22.3	%	+17.3	%
Vinyls	-8.3	%	+3.5	%	-6.0	%	+1.0	%
Company	-11.1	%	+7.0	%	-9.6	%	+4.7	%

Average Industry Prices ⁽¹⁾
	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Average domestic prices
Ethane (cents/lb) ⁽²⁾	7.1		9.7		8.5		9.1
Propane (cents/lb) ⁽³⁾	12.8		20.7		14.3		20.5
Ethylene (cents/lb) ⁽⁴⁾	13.7		14.8		15.4		19.2
Polyethylene (cents/lb) ⁽⁵⁾	63.0		73.7		61.5		73.7
Styrene (cents/lb) ⁽⁶⁾	80.8		93.0		79.8		95.6
Caustic soda ($/short ton) ⁽⁷⁾	697		795		707		772
Chlorine ($/short ton) ⁽⁸⁾	175		175		175		168
PVC (cents/lb) ⁽⁹⁾	68.2		67.5		68.5		67.3

Average export prices
Polyethylene (cents/lb) ⁽¹⁰⁾	42.8		59.0		43.4		60.3
Caustic soda ($/short ton) ⁽¹¹⁾	344		661		363		659
PVC (cents/lb) ⁽¹²⁾	35.0		37.4		35.5		38.4

_____________


(1)	Industry pricing data was obtained through IHS Markit ("IHS"). We have not independently verified the data.


(2)	Average Mont Belvieu spot prices of purity ethane over the period.


(3)	Average Mont Belvieu spot prices of non-TET propane over the period.


(4)	Average North American spot prices of ethylene over the period.


(5)	Average North American Net Transaction prices of polyethylene low density GP-Film grade over the period.


(6)	Average North American contract prices of styrene over the period.

(7)

Average USGC-CSLi index values for caustic soda over the period. As stated by IHS, "the caustic soda price listing represents the USGC-CSLi values. USGC-CSLi does not reflect contract price discounts, implementation lags, caps or other adjustments factors. Additionally, it is not intended to represent a simple arithmetic average of all market transactions occurring during the month. Rather, the USGC-CSLi is most representative of the month-to-month caustic soda price movement for contract volumes of liquid 50% caustic soda rather than the absolute value of contract prices at a particular point in time. It is intended to serve only as a benchmark."


(8)	Average North American contract prices of chlorine over the period. Effective January 1, 2019, IHS made a non-market average downward adjustment of $172.50 per short ton to chlorine prices. For comparability, we adjusted the prior period's chlorine price downward by $172.50 per short ton consistent with the IHS non-market adjustment.


(9)	Average North American contract prices of pipe grade polyvinyl chloride ("PVC") over the period. As stated by IHS, "the contract resin prices posted reflect an "index" or "market" for prices before discounts, rebates, incentives, etc."


(10)	Average North American export price for low density polyethylene GP-Film grade over the period.


(11)	Average North American low spot export prices of caustic soda over the period..


(12)	Average North American spot export prices of PVC over the period.

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Reconciliation of EBITDA to Net Income, Income from Operations and Net Cash Provided by Operating Activities

The following table presents the reconciliation of EBITDA to net income, income from operations and net cash provided by operating activities, the most directly comparable GAAP financial measures, for each of the periods indicated.



	Three Months Ended June 30,						Six Months Ended June 30,
	2019			2018			2019			2018

	(dollars in millions)
Net cash provided by operating activities	$	320		$	324		$	467		$	549
Changes in operating assets and liabilities and other	(191		)	(7		)	(241		)	81
Deferred income taxes	—			(29		)	(15		)	(45		)
Net income	129			288			211			585
Less:
Other income, net	2			8			11			30
Interest expense	(28		)	(31		)	(58		)	(68		)
Provision for income taxes	(39		)	(93		)	(70		)	(182		)
Income from operations	194			404			328			805
Add:
Depreciation and amortization	176			156			347			312
Other income, net	2			8			11			30
EBITDA	$	372		$	568		$	686		$	1,147

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Summary

For the quarter ended June 30, 2019, net income attributable to Westlake was $119 million, or $0.92 per diluted share, on net sales of $2,144 million. This represents a decrease in net income attributable to Westlake of $159 million, or $1.20 per diluted share, compared to the second quarter of 2018 net income attributable to Westlake of $278 million, or $2.12 per diluted share, on net sales of $2,235 million. Income from operations for the second quarter of 2019 was $194 million, a $210 million decrease from income from operations of $404 million for the second quarter of 2018. The decreases in net income and income from operations versus the prior-year period were primarily due to lower sales prices for our major products resulting from ongoing international trade uncertainties and slower global economic growth. The decrease in sales prices for our major products was partially offset by lower feedstock and purchased ethylene costs, lower fuel costs and higher polyethylene sales volumes. Net sales for the second quarter of 2019 decreased by $91 million compared to net sales for the second quarter of 2018, mainly due to lower sales prices for our major products, partially offset by an increase in sales volumes for polyethylene and styrene and the contribution from NAKAN, which was acquired in January 2019. Restructuring, transaction and integration-related costs in the second quarter of 2019 were $2 million, or $0.01 per diluted share.

For the six months ended June 30, 2019, net income attributable to Westlake was $191 million, or $1.47 per diluted share, on net sales of $4,169 million. This represents a decrease in net income attributable to Westlake of $374 million, or $2.84 per diluted share, compared to the six months ended June 30, 2018 net income attributable to Westlake of $565 million, or $4.31 per diluted share, on net sales of $4,385 million. Income from operations for the six months ended June 30, 2019 was $328 million, a $477 million decrease from income from operations of $805 million for the six months ended June 30, 2018. The decreases in net income and income from operations were primarily due to lower margins resulting from lower sales prices for our major products, partially offset by lower feedstock and purchased ethylene costs and higher polyethylene sales volumes. Net sales for the six months ended June 30, 2019 decreased by $216 million compared to net sales for the six months ended June 30, 2018, mainly due to lower sales prices for our major products, partially offset by an increase in sales volumes for polyethylene and styrene and the contribution from NAKAN. Restructuring, transaction and integration-related costs for the six months ended June 30, 2019 were $24 million, or $0.17 per diluted share.

RESULTS OF OPERATIONS

Second Quarter 2019 Compared with Second Quarter 2018

Net Sales. Net sales decreased by $91 million, or 4%, to $2,144 million in the second quarter of 2019 from $2,235 million in the second quarter of 2018, primarily attributable to lower sales prices for our major products, partially offset by higher sales volumes for polyethylene and styrene and the contribution from NAKAN. Average sales prices for the second quarter of 2019 decreased by 11% as compared to the second quarter of 2018. Overall sales volume increased by 7% for the second quarter of 2019 as compared to the second quarter of 2018.

Gross Profit. Gross profit margin percentage decreased to 16% in the second quarter of 2019 from 25% in the second quarter of 2018. The second quarter of 2019 gross profit margin decreased primarily due to lower sales prices for our major products (resulting in lower margins), partially offset by lower feedstock and purchased ethylene costs, lower fuel costs and higher polyethylene sales volumes, as compared to the second quarter of 2018.

Selling, General and Administrative Expenses. Selling, general and administrative expenses increased by $2 million to $117 million in the second quarter of 2019 as compared to $115 million in the second quarter of 2018. This increase was mainly due to selling, general and administrative expenses related to NAKAN, partially offset by lower employee compensation and professional consulting fees.

Amortization of Intangibles. Amortization expense was $27 million in the second quarter of 2019, which was comparable to $25 million in the second quarter of 2018.

Restructuring, Transaction and Integration-related Costs. Restructuring, transaction and integration-related costs of $2 million in the second quarter of 2019 were lower as compared to $8 million in the second quarter of 2018, primarily due to lower acquisition-related consulting and severance costs.

Interest Expense. Interest expense decreased by $3 million to $28 million in the second quarter of 2019 from $31 million in the second quarter of 2018, primarily as a result of lower average debt outstanding in the second quarter of 2019 as compared to the second quarter of 2018. The lower average debt balance in the second quarter of 2019 was mainly due to the redemption of senior notes in May 2018. See "Liquidity and Capital Resources—Debt" below for further discussion of our indebtedness.

Other Income, Net. Other income, net decreased by $6 million to $2 million in the second quarter of 2019 from $8 million in the second quarter of 2018. The decrease was primarily attributable to lower income from unconsolidated subsidiaries.

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Income Taxes. The effective income tax rate was 23.2% for the second quarter of 2019 as compared to 24.4% for the second quarter of 2018. The effective tax rate in the second quarter of 2019 was lower as compared to the second quarter of 2018 primarily due to lower state and foreign taxes.

Olefins Segment

Net Sales. Net sales for the Olefins segment decreased by $5 million, or 1%, to $477 million in the second quarter of 2019 from $482 million in the second quarter of 2018. The decrease was mainly due to lower sales prices for our major products, partially offset by higher polyethylene and styrene sales volumes. Average sales prices for the Olefins segment decreased by 21% in the second quarter of 2019 as compared to the second quarter of 2018 primarily due to increased olefins production from new industry capacity. Overall sales volumes for the Olefins segment increased by 20% in the second quarter of 2019 as compared to the second quarter of 2018.

Income from Operations. Income from operations for the Olefins segment decreased by $76 million to $82 million in the second quarter of 2019 from $158 million in the second quarter of 2018. This decrease in income from operations was primarily due to lower sales prices and margins for our major products as a result of increased olefins production from new industry capacity. Higher polyethylene sales volumes, lower feedstock and fuel costs and lower impacts from turnaround activity partially offset the lower sales prices and margins. Trading activity for the second quarter of 2019 resulted in a loss of approximately $7 million as compared to a gain of $1 million for the second quarter of 2018.

Vinyls Segment

Net Sales. Net sales for the Vinyls segment decreased by $86 million, or 5%, in the second quarter of 2019 due to lower sales prices for our major products, partially offset by the contributions from NAKAN, as compared to the prior-year period. Average sales prices for the Vinyls segment decreased by 8% in the second quarter of 2019, as compared to the second quarter of 2018, as high global inventories for caustic soda and lower domestic ethylene costs continued to impact prices. Overall sales volumes for the Vinyls segment increased by 4% in the second quarter of 2019 as compared to the second quarter of 2018.

Income from Operations. Income from operations for the Vinyls segment decreased by $142 million to $129 million in the second quarter of 2019 from $271 million in the second quarter of 2018. This decrease in income from operations was primarily due to lower sales prices for caustic soda and lower margins for PVC resin resulting from slower global economic growth and ongoing international trade uncertainties.

Six Months Ended June 30, 2019 Compared with Six Months Ended June 30, 2018

Net Sales. Net sales decreased by 216 million, or 5%, to $4,169 million for the six months ended June 30, 2019 from $4,385 million for the six months ended June 30, 2018, primarily attributable to lower sales prices for our major products, partially offset by higher sales volumes for polyethylene and styrene and the contribution from NAKAN. Average sales prices for the six months ended June 30, 2019 decreased by 10% as compared to the six months ended June 30, 2018. Overall sales volume increased by 5% for the six months ended June 30, 2019 as compared to the six months ended June 30, 2018.

Gross Profit. Gross profit margin percentage decreased to 15% for the six months ended June 30, 2019 from 25% in the six months ended June 30, 2018. The gross profit margin decreased primarily due to lower sales prices for our major products (resulting in lower margins), partially offset by lower feedstock and purchased ethylene costs and higher polyethylene sales volumes, as compared to the six months ended June 30, 2018.

Selling, General and Administrative Expenses. Selling, general and administrative expenses increased by $10 million to $233 million for the six months ended June 30, 2019 as compared to $223 million in the six months ended June 30, 2018. This increase was mainly due to selling, general and administrative expenses related to NAKAN, partially offset by lower employee compensation.

Amortization of Intangibles. Amortization expense was $54 million for the six months ended June 30, 2019, which was comparable to $51 million for the six months ended June 30, 2018.

Restructuring, Transaction and Integration-related Costs. Restructuring, transaction and integration-related costs of $24 million for the six months ended June 30, 2019 were higher as compared to $15 million for the six months ended June 30, 2018. The restructuring, transaction and integration-related costs for the 2019 period primarily consisted of restructuring expenses of $19 million and acquisition and integration-related costs of $5 million. The restructuring expenses represent charges associated with the write-off of certain assets.

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Interest Expense. Interest expense decreased by $10 million to $58 million for the six months ended June 30, 2019 from $68 million for the six months ended June 30, 2018, primarily as a result of lower average debt outstanding for the six months ended June 30, 2019 as compared to the six months ended June 30, 2018. The lower average debt balance for the six months ended June 30, 2019 was mainly due to the redemption of senior notes in May 2018 and in February 2018. See "Liquidity and Capital Resources—Debt" below for further discussion of our indebtedness.

Other Income, Net. Other income, net decreased by $19 million to $11 million for the six months ended June 30, 2019 from $30 million for the six months ended June 30, 2018. The decrease was primarily attributable to lower income from unconsolidated subsidiaries. Additionally, a net gain of $6 million was recognized in the first half of 2018 on the redemption of the senior notes.

Income Taxes. The effective income tax rate was 24.9% for the first six months of 2019 as compared to 23.7% for the first six months of 2018. The effective tax rate for the six months ended June 30, 2019 was higher as compared to the six months ended June 30, 2018 primarily due to tax effects related to charges associated with the write-off of certain assets.

Olefins Segment

Net Sales. Net sales for the Olefins segment decreased by $49 million, or 5%, to $936 million for the six months ended June 30, 2019 from $985 million for the six months ended June 30, 2018. The decrease was mainly due to lower sales prices for our major products, partially offset by higher polyethylene and styrene sales volumes. Average sales prices for the Olefins segment decreased by 22% for the six months ended June 30, 2019 as compared to the six months ended June 30, 2018 primarily due to increased olefins production from new industry capacity and the sharp drop in global crude oil prices in late 2018. Overall sales volumes for the Olefins segment increased by 17% in the six months ended June 30, 2019 as compared to the six months ended June 30, 2018.

Income from Operations. Income from operations for the Olefins segment decreased by $202 million to $119 million for the six months ended June 30, 2019 from $321 million for the six months ended June 30, 2018. This decrease in income from operations was primarily due to the lower sales prices and margins for our major products, partially offset by higher polyethylene sales volumes and lower feedstock costs. Trading activity for the six months ended June 30, 2019 resulted in a loss of approximately $11 million as compared to a gain of $2 million for the six months ended June 30, 2018.

Vinyls Segment

Net Sales. Net sales for the Vinyls segment decreased by $167 million, or 5%, due to lower sales prices for our major products, partially offset by the contributions from NAKAN, as compared to the prior-year period. Average sales prices for the Vinyls segment decreased by 6% in the first six months of 2019, as compared to the first six months of 2018, as high global inventories for caustic soda continued to impact prices, which, combined with the decline in global oil prices in late 2018, lowered the global production cost for PVC resin and, therefore, resulted in lower global PVC sales prices. Overall sales volumes for the Vinyls segment increased by 1% in the first six months of 2019 as compared to the first six months of 2018.

Income from Operations. Income from operations for the Vinyls segment decreased by $307 million to $230 million in the first six months of 2019 from $537 million in the first six months of 2018. This decrease in income from operations was primarily due to lower caustic soda sales prices and lower margins for PVC resin.

CASH FLOW DISCUSSION FOR THE SIX MONTHS ENDED JUNE 30, 2019 AND 2018

Cash Flows

Operating Activities

Operating activities provided cash of $467 million in the first six months of 2019 compared to cash provided by operating activities of $549 million in the first six months of 2018. The $82 million decrease in cash flows from operating activities was mainly due to the decrease in income from operations during the first six months of 2019 as compared to the first six months of 2018, partially offset by a decrease in working capital requirements. The decrease in income from operations was primarily due to lower sales prices for our major products and other factors as discussed in the "Summary" above. Changes in components of working capital, which we define for purposes of this cash flow discussion as accounts receivable, net, inventories, prepaid expenses and other current assets, less accounts and notes payable and accrued and other liabilities, used cash of $104 million in the first six months of 2019, compared to $375 million of cash used in the first six months of 2018, a favorable change of $271 million. The favorable changes were primarily due to changes in accounts receivable and inventories. The changes in accounts receivable and inventories were primarily the result of lower sales prices and lower inventory costs in the first six months of 2019, as compared to the first six months of 2018.

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Investing Activities

Net cash used for investing activities during the first six months of 2019 was $763 million as compared to net cash used for investing activities of $354 million in the first six months of 2018. Higher investing activities were primarily due to acquisitions for $314 million, net of cash acquired. Capital expenditures were $411 million in the first six months of 2019 compared to $312 million in the first six months of 2018. Capital expenditures in the first six months of 2019 and 2018 were primarily related to expansion projects, projects to improve production capacity or reduce costs, maintenance and safety projects and environmental projects at our various facilities. We spent $42 million and $35 million in the first six months of 2019 and 2018, respectively, to fund the construction costs of the ethylene plant of our joint venture LACC, LLC. Additionally, we invested $10 million in other unconsolidated subsidiaries in the first six months of 2018.

Financing Activities

Net cash used for financing activities during the first six months of 2019 was $48 million as compared to net cash used by financing activities of $1,242 million in the first six months of 2018. In the first six months of 2019, we received proceeds of $63 million from the issuance of WLKP common units. The remaining activities during the first six months of 2019 were primarily related to the $65 million payment of cash dividends, the $30 million payment of cash distributions to noncontrolling interests, repurchases of our common stock (under the 2014 Program) of $20 million, proceeds of $7 million from the issuance of short-term notes payable and $5 million for the repayment of short-term notes payable. The financing activities during the first six months of 2018 were mainly related to the repayment of notes payable of $1,173 million, of which $704 million was used for the redemption of the 2021 Notes in February 2018, $461 million was used for the redemption of the 2023 Notes in May 2018 and the remaining balance was used for the repayment of short-term notes payable. The remaining activities during the first six months of 2018 were primarily related to the $54 million payment of cash dividends, the $29 million payment of cash distributions to noncontrolling interests and proceeds from issuance of short-term notes payable to banks.

LIQUIDITY AND CAPITAL RESOURCES

Liquidity and Financing Arrangements

Our principal sources of liquidity are from cash and cash equivalents, cash from operations, short-term borrowings under the Credit Agreement and our long-term financing.

In November 2014, our Board of Directors authorized a $250 million stock repurchase program (the "2014 Program"). In November 2015, our Board of Directors approved the expansion of the 2014 Program by an additional $150 million. In August 2018, our Board of Directors approved the further expansion of the existing 2014 Program by an additional $150 million. As of June 30, 2019, we had repurchased 5,905,219 shares of our common stock for an aggregate purchase price of approximately $355 million under the 2014 Program. During the six months ended June 30, 2019, 342,740 shares of our common stock were repurchased under the 2014 Program. Purchases under the 2014 Program may be made either through the open market or in privately negotiated transactions. Decisions regarding the amount and the timing of purchases under the 2014 Program will be influenced by our cash on hand, our cash flow from operations, general market conditions and other factors. The 2014 Program may be discontinued by our Board of Directors at any time.

On July 17, 2019, we closed the public offering of €700 million aggregate principal amount of the 1.625% 2029 Senior Notes. We intend to use the net proceeds from this offering for general corporate purposes.

We believe that our sources of liquidity as described above are adequate to fund our normal operations and ongoing capital expenditures. Funding of any potential large expansions or any potential acquisitions would likely necessitate and therefore depend on our ability to obtain additional financing in the future. We may not be able to access additional liquidity at cost effective interest rates due to the volatility of the commercial credit markets.

Cash and Cash Equivalents

As of June 30, 2019, our cash and cash equivalents totaled $409 million. In addition, we have the Credit Agreement available to supplement cash if needed, as described under "Debt" below.

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Debt

As of June 30, 2019, our indebtedness totaled $2.7 billion. See Note 8 to the consolidated financial statements appearing elsewhere in this Form 10-Q for a discussion of our long-term indebtedness. Defined terms used in this section have the definitions assigned to such terms in Note 8 to the consolidated financial statements included in Item 1 of this Form 10-Q.

Our ability to make payments on our indebtedness and to fund planned capital expenditures will depend on our ability to generate cash in the future, which is subject to general economic, financial, competitive, legislative, regulatory and other factors that are beyond our control. Based on our current level of operations and unless we were to undertake a new expansion or large acquisition, we believe our cash flows from operations, available cash and available borrowings under the Credit Agreement will be adequate to meet our normal operating needs for the foreseeable future.

Credit Agreement

On July 24, 2018, we entered into a new $1 billion revolving credit facility that is scheduled to mature on July 24, 2023 (the "Credit Agreement") and, in connection therewith, terminated the existing $1 billion revolving credit facility that was scheduled to mature on August 23, 2021 (the "Prior Credit Agreement"). The Credit Agreement bears interest at either (a) LIBOR plus a spread ranging from 1.00% to 1.75% or (b) Alternate Base Rate plus a spread ranging from 0.00% to 0.75% in each case depending on the credit rating of the Company. At June 30, 2019, we had no borrowings outstanding under the Credit Agreement. As of June 30, 2019, we had outstanding letters of credit totaling $0 million and borrowing availability of $1,000 million under the Credit Agreement. The Credit Agreement contains certain affirmative and negative covenants, including a quarterly total leverage ratio financial maintenance covenant. As of June 30, 2019, 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 thereunder and payments of any outstanding amounts 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.

In connection with our entry into the Credit Agreement and termination of the Prior Credit Agreement on July 24, 2018, all guarantees by our subsidiaries of our payment obligations under the 4.375% 2047 Senior Notes, the 3.60% 2022 Senior Notes, the 3.60% 2026 Senior Notes and the 5.0% 2046 Senior Notes were released.

GO Zone Bonds and IKE Zone Bonds

In November 2017, the Louisiana Local Government Environmental Facility and Development Authority (the "Authority") completed the offering of $250 million aggregate principal amount of 3.50% tax-exempt revenue refunding bonds due November 1, 2032 (the "Refunding Bonds"), the net proceeds of which were used to redeem $250 million aggregate principal amount of the Authority's 6 ¾% tax-exempt revenue bonds due November 1, 2032 issued by the Authority under the Gulf Opportunity Zone Act of 2005 (the "GO Zone Act") in December 2007. In connection with the issuance of the Refunding Bonds, we issued $250 million of the 3.5% 2032 GO Zone Refunding Senior Notes. The Refunding 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 plus accrued interest.

In July 2010, the Authority completed the reoffering of $100 million of the 6 ½% 2029 GO Zone Bonds. In connection with the reoffering of the 6 ½% 2029 GO Zone Bonds, we issued $100 million of the 6 ½% 2029 GO Zone Senior Notes. In December 2010, the Authority issued $89 million of the 6 ½% 2035 GO Zone Bonds. In connection with the issuance of the 6 ½% 2035 GO Zone Bonds, we issued $89 million of the 6 ½% 2035 GO Zone Senior Notes. In December 2010, the Authority completed the offering of $65 million of the 6 ½% 2035 IKE Zone Bonds under Section 704 of the Emergency Economic Stabilization Act of 2008 (the "IKE Zone Act"). In connection with the issuance of the 6 ½% 2035 IKE Zone Bonds, we issued $65 million of the 6 ½% 2035 IKE Zone Senior Notes.

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The 6 ½% 2029 GO Zone Bonds are subject to optional redemption by the Authority upon the direction of the Company at any time prior to August 1, 2020 for 100% of the principal plus accrued interest and a discounted "make whole" payment. On or after August 1, 2020, the 6 ½% 2029 GO Zone Bonds are subject to optional redemption by the Authority upon the direction of the Company for 100% of the principal plus accrued interest. The 6 ½% 2035 GO Zone Bonds and the 6 ½% 2035 IKE Zone Bonds are subject to optional redemption by the Authority upon the direction of the Company at any time prior to November 1, 2020 for 100% of the principal plus accrued interest and a discounted "make whole" payment. On or after November 1, 2020, the 6 ½% 2035 GO Zone Bonds and the 6 ½% 2035 IKE Zone Bonds are subject to optional redemption by the Authority upon the direction of the Company for 100% of the principal plus accrued interest.

3.60% Senior Notes due 2026 and 5.0% Senior Notes due 2046

In August 2016, we completed the private offering of $750 million aggregate principal amount of our 3.60% 2026 Senior Notes and $700 million aggregate principal amount of our 5.0% 2046 Senior Notes. In March 2017, the Company commenced registered exchange offers to exchange the 3.60% 2026 Senior Notes and the 5.0% 2046 Senior Notes for new notes that are identical in all material respects to the 3.60% 2026 Senior Notes and the 5.0% 2046 Senior Notes, except that the offer and issuance of the new Securities and Exchange Commission ("SEC")-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 99.97% of the 3.60% 2026 Senior Notes and 100% of the 5.0% 2046 Senior Notes were exchanged. The notes that were not exchanged in the exchange offers 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.

3.60% Senior Notes due 2022

In July 2012, we issued $250 million aggregate principal amount of the 3.60% 2022 Senior Notes. We may optionally redeem the 3.60% 2022 Senior Notes at any time and from time to time prior to April 15, 2022 (three months prior to the maturity date) for 100% of the principal plus accrued interest and a discounted "make whole" payment. On or after April 15, 2022, we may optionally redeem the 3.60% 2022 Senior Notes for 100% of the principal plus accrued interest. The holders of the 3.60% 2022 Senior Notes may require us to repurchase the 3.60% 2022 Senior Notes at a price of 101% of their principal amount, plus accrued and unpaid interest to the date of repurchase, upon the occurrence of both a "change of control" and, within 60 days of such change of control, a "below investment grade rating event" (as such terms are defined in the indenture governing the 3.60% 2022 Senior Notes).

4.375% Senior Notes due 2047

In November 2017, we completed the registered public offering of $500 million aggregate principal amount of 4.375% Senior Notes due November 15, 2047. We may optionally redeem the 4.375% 2047 Senior Notes at any time and from time to time prior to May 15, 2047 (six months prior to the maturity date) for 100% of the principal plus accrued interest and a discounted "make whole" payment. On or after May 15, 2047, we may optionally redeem the 4.375% 2047 Senior Notes for 100% of the principal amount plus accrued interest. The holders of the 4.375% 2047 Senior Notes may require us to repurchase the 4.375% 2047 Senior Notes at a price of 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 indenture governing the 4.375% 2047 Senior Notes).

Revenue Bonds

In December 1997, we entered into a loan agreement with a public trust established for public purposes for the benefit of the Parish of Calcasieu, Louisiana. The public trust issued $11 million principal amount of tax-exempt waste disposal revenue bonds in order to finance our construction of waste disposal facilities for an ethylene plant. The waste disposal revenue bonds expire in December 2027 and are subject to redemption and mandatory tender for purchase prior to maturity under certain conditions. Interest on the waste disposal revenue bonds accrues at a rate determined by a remarketing agent and is payable quarterly. The interest rate on the waste disposal revenue bonds at June 30, 2019 was 2.00% and at December 31, 2018 was 1.85%.

1.625% Senior Notes due 2029

On July 17, 2019, we closed the public offering of €700 million aggregate principal amount of the 1.625% 2029 Senior Notes. The Company received approximately $779 million of net proceeds from the offering. The 1.625% 2029 Senior Notes will accrue interest from July 17, 2019 at a rate of 1.625% per annum, payable annually in arrears on July 17 of each year, beginning July 17, 2020.

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The indenture and supplemental indebtedness governing the 3.60% 2026 Senior Notes, the 5.0% 2046 Senior Notes, the 3.60% 2022 Senior Notes, the 4.375% 2047 Senior Notes and the 1.625% 2029 Senior Notes contain customary events of default and covenants that will restrict us and certain of our subsidiaries' ability to (1) incur certain secured indebtedness, (2) engage in certain sale-leaseback transactions and (3) consolidate, merge or transfer all or substantially all of its assets.

As of June 30, 2019, we were in compliance with all of our long-term debt covenants.

Westlake Chemical Partners LP Credit Arrangements

Our subsidiary, Westlake Chemical Finance Corporation, is the lender party to a $600 million revolving credit facility with WLKP, originally entered into on April 29, 2015. The revolving credit facility is scheduled to mature on April 29, 2021. Borrowings under the revolver bear interest at LIBOR plus a spread ranging from 2.0% to 3.0% (depending on WLKP's consolidated leverage ratio), payable quarterly. WLKP may pay all or a portion of the interest on any borrowings in kind, in which case any such amounts would be added to the principal amount of the loan. As of June 30, 2019, outstanding borrowings under the credit facility totaled $377 million and bore interest at the LIBOR rate plus 2.0%.

Our subsidiary, Westlake Polymers LLC, is the administrative agent to a $600 million revolving credit facility with OpCo. As of June 30, 2019, outstanding borrowings under the credit facility totaled $23 million and bore interest at the LIBOR rate plus 2.0%, which is accrued in arrears quarterly.

We consolidate WLKP 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 WLKP and OpCo are eliminated upon consolidation.

Off-Balance Sheet Arrangements

None.

FORWARD-LOOKING STATEMENTS

The Private Securities Litigation Reform Act of 1995 provides safe harbor provisions for forward-looking information. Certain of the statements contained in this report are forward-looking statements. All statements, other than statements of historical facts, included in this report that address activities, events or developments that we expect, project, believe or anticipate will or may occur in the future are forward-looking statements. Forward-looking statements can be identified by the use of words such as "believes," "intends," "may," "should," "could," "anticipates," "expected" or comparable terminology, or by discussions of strategies or trends. Although we believe that the expectations reflected in such forward-looking statements are reasonable, we cannot give any assurances that these expectations will prove to be correct. Forward-looking statements relate to matters such as:


•	future operating rates, margins, cash flows and demand for our products;


•	industry market outlook, including the price of crude oil;


•	production capacities;


•	currency devaluation;


•	our ability to borrow additional funds under our credit agreement;


•	our ability to meet our liquidity needs;


•	our ability to meet debt obligations under our debt instruments;


•	our intended quarterly dividends;


•	future capacity additions and expansions in the industries in which we compete;


•	results of acquisitions, including our acquisition of NAKAN;


•	timing, funding and results of capital projects, such as the construction of the LACC plant and associated facilities;


•	pension plan obligations, funding requirements and investment policies;


•	compliance with present and future environmental regulations and costs associated with environmentally related penalties, capital expenditures, remedial actions and proceedings, including any new laws, regulations or treaties that may come into force to limit or control carbon dioxide and other greenhouse gas emissions or to address other issues of climate change;


•	effects of pending legal proceedings; and

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•	timing of and amount of capital expenditures.

We have based these statements on assumptions and analyses in light of our experience and perception of historical trends, current conditions, expected future developments and other factors we believe were appropriate in the circumstances when the statements were made. Forward-looking statements by their nature involve substantial risks and uncertainties that could significantly impact expected results, and actual future results could differ materially from those described in such statements. While it is not possible to identify all factors, we continue to face many risks and uncertainties. Among the factors that could cause actual future results to differ materially are the risks and uncertainties discussed under "Risk Factors" in the 2018 Form 10-K and those described from time to time in our other filings with the SEC including, but not limited to, the following:


•	general economic and business conditions;


•	the cyclical nature of the chemical and building products industries;


•	the availability, cost and volatility of raw materials and energy;


•	uncertainties associated with the United States, European and worldwide economies, including those due to political tensions and unrest in the Middle East and elsewhere;


•	current and potential governmental regulatory actions in the United States and other countries and political unrest in other areas;


•	industry production capacity and operating rates;


•	the supply/demand balance for our products;


•	competitive products and pricing pressures;


•	instability in the credit and financial markets;


•	access to capital markets;


•	terrorist acts;


•	operating interruptions (including leaks, explosions, fires, weather-related incidents, mechanical failure, unscheduled downtime, labor difficulties, transportation interruptions, spills and releases and other environmental risks);


•	changes in laws or regulations, including trade policies;


•	technological developments;


•	foreign currency exchange risks;


•	our ability to implement our business strategies; and


•	creditworthiness of our customers.

Many of such factors are beyond our ability to control or predict. Any of the factors, or a combination of these factors, could materially affect our future results of operations and the ultimate accuracy of the forward-looking statements. These forward-looking statements are not guarantees of our future performance, and our actual results and future developments may differ materially from those projected in the forward-looking statements. Management cautions against putting undue reliance on forward-looking statements or projecting any future results based on such statements or present or prior earnings levels. Every forward-looking statement speaks only as of the date of the particular statement, and we undertake no obligation to publicly update or revise any forward-looking statements.

Item 3. Quantitative and Qualitative Disclosures about Market Risk

Commodity Price Risk

A substantial portion of our products and raw materials are commodities whose prices fluctuate as market supply and demand fundamentals change. Accordingly, product margins and the level of our profitability tend to fluctuate with changes in the business cycle. We try to protect against such instability through various business strategies. Our strategies include ethylene product feedstock flexibility and moving downstream into the olefins and vinyls products where pricing is more stable. We use derivative instruments in certain instances to reduce price volatility risk on feedstocks and products. Based on our open derivative positions at June 30, 2019, a hypothetical $0.10 increase in the price of a gallon of ethane would have increased our income before income taxes by $20 million.

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Interest Rate Risk

We are exposed to interest rate risk with respect to fixed and variable rate debt. At June 30, 2019, we had $2,704 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 $27 million. Also, at June 30, 2019, we had $11 million principal amount of variable rate debt outstanding, which represents the tax-exempt waste disposal revenue bonds. We do not currently hedge our variable interest rate debt, but we may do so in the future. The average variable interest rate for our variable rate debt of $11 million as of June 30, 2019 was 2.00%. 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.

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 hedging arrangements designated as net investment hedges with an aggregate notional value of 220 million euros to reduce the volatility in stockholders' equity from changes in currency exchange rates associated with our net investments in foreign operations. The arrangement is scheduled to mature in 2026.

Item 4. Controls and Procedures

We carried out an evaluation, under the supervision and with the participation of our management, including our President and Chief Executive Officer and our Executive Vice President and Chief Financial Officer, of the effectiveness of our disclosure controls and procedures pursuant to Rules 13a-15 or 15d-15 under the Securities Exchange Act of 1934 as of the end of the period covered by this report. Based upon that evaluation, our President and Chief Executive Officer and our Executive Vice President and Chief Financial Officer concluded that our disclosure controls and procedures are effective with respect to (i) the accumulation and communication to our management, including our Chief Executive Officer and our Chief Financial Officer, of information required to be disclosed by us in the reports that we submit under the Exchange Act, and (ii) the recording, processing, summarizing and reporting of such information within the time periods specified in the SEC's rules and forms.

There were no changes in our internal control over financial reporting that occurred during the three months ended June 30, 2019 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II. OTHER INFORMATION

Item 1. Legal Proceedings

The 2018 Form 10-K, filed on February 20, 2019, contained a description of various legal proceedings in which we are involved. See below and Note 15 to the unaudited consolidated financial statements within this Quarterly Report on Form 10-Q for description of certain of those proceedings, which information is incorporated by reference herein.

We and other caustic soda producers were named as defendants in eight purported class action civil lawsuits filed in March, April and July 2019 in the U.S. District Court for the Western District of New York. The lawsuits allege the defendants conspired to fix, raise, maintain and stabilize the price of caustic soda, restrict domestic (U.S.) supply of caustic soda and allocate caustic soda customers. The other defendants named in the lawsuits are Olin Corporation, K.A. Steel Chemicals (a wholly owned subsidiary of Olin), Occidental Petroleum Corporation, Occidental Chemical Corporation d/b/a OxyChem, Shin-Etsu Chemical Co., Ltd., Shintech Incorporated, Formosa Plastics Corporation, and Formosa Plastics Corporation, U.S.A. The lawsuits are filed on behalf of the respective named plaintiffs and a putative class comprised of all persons and entities who purchased caustic soda in the U.S. directly from one or more of the defendants, their parents, predecessors, subsidiaries or affiliates at any time between October 1, 2015 and the present. Plaintiffs seek an unspecified amount of damages and injunctive relief. We believe the claims are without merit and intend to defend against them vigorously. At this time, we are not able to estimate the impact, if any, that these lawsuits could have on our consolidated financial statements either in the current period or in future periods.

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From time to time, we receive notices or inquiries from government entities regarding alleged violations of environmental laws and regulations pertaining to, among other things, the disposal, emission and storage of chemical substances, including hazardous wastes. Item 103 of the SEC's Regulation S-K requires disclosure of certain environmental matters when a governmental authority is a party to the proceedings and the proceedings involve potential monetary sanctions, unless we reasonably believe such sanctions would not exceed $100,000.

•

In May 2013, an amendment to an existing consent order agreed to by the West Virginia Department of Environmental Protection and a predecessor of Axiall required that it, among other things, pay a penalty in the amount of $449,000 and continue certain corrective actions associated with discharges of hexachlorocyclohexane (commonly referred to as BHC) from the Natrium facility's effluent discharge outfalls. The penalty was paid and corrective actions required are on-going per a December 2018 agreement to extend the compliance date under the amended consent order. The amended consent order also imposes stipulated penalties for exceedances of the facility's interim effluent discharge limits, which penalties we believe may, in the aggregate, reach or exceed $100,000.

•

During September 2010, our vinyls facilities in Lake Charles and Plaquemine each received a Consolidated Compliance Order and Notice of Potential Penalty, alleging violations of various requirements of those facilities' air permits, based largely on self-reported permit deviations related to record-keeping violations. We have been negotiating a possible global settlement of these and several other matters with the Louisiana Department of Environmental Quality ("LDEQ"). In May 2018, we reached an agreement in principal with the LDEQ to resolve these consolidated enforcement matters for a penalty of $162,500. The settlement agreement is being prepared and when finalized will be subject to public comment and approval by the Louisiana Attorney General.

•

For several years, the Environmental Protection Agency (the "EPA") has been conducting an enforcement initiative against petroleum refineries and petrochemical plants with respect to emissions from flares. On April 21, 2014, we received a Clean Air Act Section 114 Information Request from the EPA which sought information regarding flares at the Calvert City facility and certain Lake Charles facilities. The EPA has informed us that the information provided leads the EPA to believe that some of the flares are out of compliance with applicable standards. The EPA has indicated that it is seeking a consent decree that would obligate us to take corrective actions relating to the alleged noncompliance. We believe the resolution of these matters may require the payment of a monetary sanction in excess of $100,000.

•

Regional offices of the EPA have investigated, and in some cases inspected, our compliance with Risk Management Program requirements under the Clean Air Act at our Natrium and Geismar facilities. We have reached an agreement in principle with the EPA to resolve the alleged Risk Management Program Violations at the Natrium facility for a total penalty of $174,626, some portion of which may be offset by a Supplement Environmental Project, which is under evaluation. Resolution of the Geismar matter remains pending and we believe may require the payment of a monetary sanction in excess of $100,000.

•

On November 24, 2014, we entered into an agreed order with the Kentucky Energy and Environmental Cabinet ("KEEC") regarding our Kentucky Pollutant Discharge Elimination System permit limits for hexachlorobenzene and mercury at our Calvert City, Kentucky facility. We and the KEEC entered into a new agreed order under which we will be subject to new interim discharge limits for hexachlorobenzene in addition to accompanying stipulated penalties for exceedances of those interim discharge limits, which penalties we believe may, in the aggregate, reach or exceed $100,000.

We do not believe that the resolution of any or all of these matters will have a material adverse effect on our financial condition, results of operations or cash flows.

Item 1A. Risk Factors

For a discussion of risk factors, please read Item 1A, "Risk Factors" in the 2018 Form 10-K. There have been no material changes from those risk factors.

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Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

The following table provides information on our purchase of equity securities during the quarter ended June 30, 2019.



Period	Total Number of Shares Purchased ⁽¹⁾	Average Price Paid Per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs ⁽²⁾	Maximum Number (or Approximate Dollar Value) of Shares that May Yet Be Purchased Under the Plans or Programs ⁽²⁾
April 2019	197	$	77.89	—	$	214,872,000
May 2019	342,832	$	58.35	342,740	$	194,872,000
June 2019	—	$	—	—	$	194,872,000
	343,029	$	58.36	342,740

_____________


(1)	Includes 197 and 92 shares withheld in April 2019 and May 2019, respectively, in satisfaction of withholding taxes due upon the vesting of restricted stock units granted to our employees under the 2013 Plan.

(2)

In November 2014, our Board of Directors authorized a $250 million stock repurchase program (the "2014 Program"). In November 2015, our Board of Directors approved the expansion of the 2014 Program by an additional $150 million. In August 2018, our Board of Directors approved the further expansion of the existing 2014 Program by an additional $150 million. As of June 30, 2019, 5,905,219 shares of our common stock had been acquired at an aggregate purchase price of approximately $355 million under the 2014 Program. Transaction fees and commissions are not reported in the average price paid per share in the table above. Decisions regarding the amount and the timing of purchases under the 2014 Program will be influenced by our cash on hand, our cash flows from operations, general market conditions and other factors. The 2014 Program may be discontinued by our Board of Directors at any time.

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Item 6. Exhibits



Exhibit No.		Exhibit Index

4.1		Twelfth Supplemental Indenture (including the form of the Notes), dated as of July 17, 2019, between Westlake Chemical Corporation and The Bank of New York Mellon Trust Company, N.A., as trustee (incorporated by reference to Exhibit 4.2 to Westlake's Current Report on Form 8-K, filed on July 17, 2019, File No. 1-32260).

4.2		Paying Agency Agreement dated as of July 17, 2019, between Westlake Chemical Corporation and The Bank of New York Mellon, London Branch, as paying agent (incorporated by reference to Exhibit 4.4 to Westlake's Current Report on Form 8-K, filed on July 17, 2019, File No. 1-32260).

31.1†		Rule 13a – 14(a) / 15d – 14(a) Certification (Principal Executive Officer)

31.2†		Rule 13a – 14(a) / 15d – 14(a) Certification (Principal Financial Officer)

32.1#		Section 1350 Certification (Principal Executive Officer and Principal Financial Officer)

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

______________________________


†	Filed herewith.


#	Furnished herewith.

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SIGNATURES

Pursuant to the requirements 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 CHEMICAL CORPORATION

Date:	August 6, 2019	By:	/S/ ALBERT CHAO
			Albert Chao
			President and Chief Executive Officer (Principal Executive Officer)

Date:	August 6, 2019	By:	/S/ M. STEVEN BENDER
			M. Steven Bender
			Executive Vice President and Chief Financial Officer (Principal Financial Officer)