Guarantor Disclosures (Tables)

Condensed Consolidating Financial Information as of March 31, 2012


	Westlake Chemical Corporation		Guarantor Subsidiaries		Non- Guarantor Subsidiaries		Eliminations			Consolidated
Balance Sheet
Current assets
Cash and cash equivalents	$	868,944	$	3,563	$	22,635	$	—		$	895,142
Accounts receivable, net		21,593		1,475,952		4,718		(1,057,654	)		444,609
Inventories		—		407,949		14,456		—			422,405
Prepaid expenses and other current assets		183		11,252		2,671		—			14,106
Deferred income taxes		430		19,050		134		—			19,614

Total current assets		891,150		1,917,766		44,614		(1,057,654	)		1,795,876
Property, plant and equipment, net		—		1,255,117		8,439		—			1,263,556
Equity investments		2,708,670		53,978		34,968		(2,751,577	)		46,039
Restricted cash		65,607		—		—		—			65,607
Other assets, net		17,299		156,943		2,285		(17,558	)		158,969

Total assets	$	3,682,726	$	3,383,804	$	90,306	$	(3,826,789	)	$	3,330,047


Current liabilities
Accounts payable	$	1,045,333	$	182,086	$	12,312	$	(1,042,282	)	$	197,449
Accrued liabilities		20,616		107,525		1,745		(15,372	)		114,514

Total current liabilities		1,065,949		289,611		14,057		(1,057,654	)		311,963
Long-term debt		753,694		10,889		11,500		(11,500	)		764,583
Deferred income taxes		—		346,303		708		(6,058	)		340,953
Other liabilities		53		49,431		34		—			49,518
Stockholders' equity		1,863,030		2,687,570		64,007		(2,751,577	)		1,863,030

Total liabilities and stockholders' equity	$	3,682,726	$	3,383,804	$	90,306	$	(3,826,789	)	$	3,330,047

Condensed Consolidating Financial Information as of December 31, 2011


	Westlake Chemical Corporation		Guarantor Subsidiaries		Non-Guarantor Subsidiaries		Eliminations			Consolidated
Balance Sheet
Current assets
Cash and cash equivalents	$	803,320	$	2,517	$	20,064	$	—		$	825,901
Accounts receivable, net		—		1,384,705		949		(978,282	)		407,372
Inventories		—		478,229		12,548		—			490,777
Prepaid expenses and other current assets		363		10,332		1,800		—			12,495
Deferred income taxes		430		19,049		132		—			19,611

Total current assets		804,113		1,894,832		35,493		(978,282	)		1,756,156
Property, plant and equipment, net		—		1,223,073		8,993		—			1,232,066
Equity investments		2,597,598		53,912		35,650		(2,640,419	)		46,741
Restricted cash		96,283		—		—		—			96,283
Other assets, net		17,650		132,968		2,467		(17,510	)		135,575

Total assets	$	3,515,644	$	3,304,785	$	82,603	$	(3,636,211	)	$	3,266,821


Current liabilities
Accounts payable	$	1,005,529	$	210,476	$	3,748	$	(992,719	)	$	227,034
Accrued liabilities		76		120,656		2,392		14,437			137,561

Total current liabilities		1,005,605		331,132		6,140		(978,282	)		364,595
Long-term debt		753,674		10,889		11,500		(11,500	)		764,563
Deferred income taxes		—		336,165		636		(6,010	)		330,791
Other liabilities		53		50,458		49		—			50,560
Stockholders' equity		1,756,312		2,576,141		64,278		(2,640,419	)		1,756,312

Total liabilities and stockholders' equity	$	3,515,644	$	3,304,785	$	82,603	$	(3,636,211	)	$	3,266,821

Condensed Consolidating Financial Information for the Three Months Ended March 31, 2012


	Westlake Chemical Corporation			Guarantor Subsidiaries			Non- Guarantor Subsidiaries			Eliminations			Consolidated
Statement of Operations
Net sales	$	—		$	1,026,332		$	9,843		$	(1,308	)	$	1,034,867
Cost of sales		—			854,987			8,551			(1,308	)		862,230

Gross profit		—			171,345			1,292			—			172,637
Selling, general and administrative expenses		505			24,756			1,751			—			27,012

(Loss) income from operations		(505	)		146,589			(459	)		—			145,625
Interest expense		(12,171	)		(6	)		—			—			(12,177	)
Other income (expense), net		3,534			(1,700	)		(487	)		—			1,347

(Loss) income before income taxes		(9,142	)		144,883			(946	)		—			134,795
(Benefit from) provision for income taxes		(3,173	)		50,231			(76	)		—			46,982
Equity in net income of subsidiaries		93,782			—			—			(93,782	)		—

Net income (loss)	$	87,813		$	94,652		$	(870	)	$	(93,782	)	$	87,813

Comprehensive income (loss)	$	105,019		$	111,344		$	(358	)	$	(110,986	)	$	105,019

Condensed Consolidating Financial Information for the Three Months Ended March 31, 2011


	Westlake Chemical Corporation			Guarantor Subsidiaries			Non- Guarantor Subsidiaries			Eliminations			Consolidated
Statement of Operations
Net sales	$	—		$	859,951		$	8,146		$	(845	)	$	867,252
Cost of sales		—			692,240			8,273			(845	)		699,668

Gross profit (loss)		—			167,711			(127	)		—			167,584
Selling, general and administrative expenses		1,012			24,749			1,186			—			26,947

(Loss) income from operations		(1,012	)		142,962			(1,313	)		—			140,637
Interest expense		(12,909	)		(11	)		—			—			(12,920	)
Other income (expense), net		3,196			(2,715	)		726			—			1,207

(Loss) income before income taxes		(10,725	)		140,236			(587	)		—			128,924
(Benefit from) provision for income taxes		(3,518	)		49,146			(248	)		—			45,380
Equity in net income of subsidiaries		90,751			—			—			(90,751	)		—

Net income (loss)	$	83,544		$	91,090		$	(339	)	$	(90,751	)	$	83,544

Comprehensive income	$	84,352		$	91,365		$	194		$	(91,559	)	$	84,352

Condensed Consolidating Financial Information for the Three Months Ended March 31, 2012


	Westlake Chemical Corporation			Guarantor Subsidiaries			Non- Guarantor Subsidiaries			Eliminations			Consolidated
Statement of Cash Flows
Cash flows from operating activities
Net income (loss)	$	87,813		$	94,652		$	(870	)	$	(93,782	)	$	87,813
Adjustments to reconcile net income (loss) to net cash (used for) provided by operating activities
Depreciation and amortization		400			34,593			801			—			35,794
Deferred income taxes		(48	)		779			60			—			791
Net changes in working capital and other		(93,790	)		(12,415	)		(1,918	)		93,782			(14,341	)

Net cash (used for) provided by operating activities		(5,625	)		117,609			(1,927	)		—			110,057

Cash flows from investing activities
Additions to property, plant and equipment		—			(64,871	)		(31	)		—			(64,902	)
Proceeds from disposition of assets		—			—			3			—			3
Proceeds from repayment of loan to affiliate		—			—			167			—			167
Purchase of investments		—			(2,961	)		—			—			(2,961	)
Settlements of derivative instruments		—			511			—			—			511

Net cash (used for) provided by investing activities		—			(67,321	)		139			—			(67,182	)

Cash flows from financing activities
Intercompany financing		44,883			(49,242	)		4,359			—			—
Dividends paid		(4,914	)		—			—			—			(4,914	)
Proceeds from exercise of stock options		480			—			—			—			480
Utilization of restricted cash		30,800			—			—			—			30,800

Net cash provided by (used for) financing activities		71,249			(49,242	)		4,359			—			26,366
Net increase in cash and cash equivalents		65,624			1,046			2,571			—			69,241
Cash and cash equivalents at beginning of period		803,320			2,517			20,064			—			825,901

Cash and cash equivalents at end of period	$	868,944		$	3,563		$	22,635		$	—		$	895,142

Condensed Consolidating Financial Information for the Three Months Ended March 31, 2011


	Westlake Chemical Corporation			Guarantor Subsidiaries			Non- Guarantor Subsidiaries			Eliminations			Consolidated
Statement of Cash Flows
Cash flows from operating activities
Net income (loss)	$	83,544		$	91,090		$	(339	)	$	(90,751	)	$	83,544
Adjustments to reconcile net income (loss) to net cash (used for) provided by operating activities
Depreciation and amortization		438			31,727			851			—			33,016
Deferred income taxes		508			7,146			(238	)		—			7,416
Net changes in working capital and other		(90,716	)		(83,535	)		184			90,751			(83,316	)

Net cash (used for) provided by operating activities		(6,226	)		46,428			458			—			40,660

Cash flows from investing activities
Additions to property, plant and equipment		—			(28,748	)		(60	)		—			(28,808	)
Proceeds from disposition of assets		—			630			—			—			630
Proceeds from repayment of loan to affiliate		—			—			167			—			167
Settlements of derivative instruments		—			(222	)		—			—			(222	)

Net cash (used for) provided by investing activities		—			(28,340	)		107			—			(28,233	)

Cash flows from financing activities
Intercompany financing		18,201			(18,076	)		(125	)		—			—
Dividends paid		(4,218	)		—			—			—			(4,218	)
Proceeds from exercise of stock options		4,820			—			—			—			4,820
Utilization of restricted cash		11,175			—			—			—			11,175

Net cash provided by (used for) financing activities		29,978			(18,076	)		(125	)		—			11,777
Net increase in cash and cash equivalents		23,752			12			440			—			24,204
Cash and cash equivalents at beginning of period		611,158			53			19,088			—			630,299

Cash and cash equivalents at end of period	$	634,910		$	65		$	19,528		$	—		$	654,503