Exhibit 12.1

WESTLAKE CHEMICAL CORPORATION

STATEMENT SETTING FORTH DETAIL FOR COMPUTATION OF

RATIO OF EARNINGS TO FIXED CHARGES

(thousands of dollars)

	Six Months Ended June 30, 2011			2010			2009			2008			2007			2006
Earnings before Income Taxes		256,123			342,960			78,753			(58,022	)		158,957			282,549
Fixed Charges		32,970			54,886			50,836			52,031			34,507			31,782
Amortization of Capitalized Interest		—			—			—			—			—			—
Equity Distributions		—			—			—			—			—			—
Capitalized Interest		(97	)		(22	)		(123	)		(3,198	)		(2,181	)		(3,593	)
Equity Investment (Income) Loss		(1,552	)		(2,212	)		(3,818	)		(621	)		(2,796	)		(1,766	)
Earnings		287,444			395,612			125,648			(9,810	)		188,487			308,972
Interest Expense		25,722			39,875			34,957			33,957			18,422			16,519
Capitalized Interest		97			22			123			3,198			2,181			3,593
Amortization of Debt Issue Costs		863			2,154			1,461			954			760			850
Portion of Rentals		6,288			12,835			14,295			13,922			13,144			10,820
Fixed Charges		32,970			54,886			50,836			52,031			34,507			31,782
Ratio of Earnings to Fixed Charges		8.7			7.2			2.5			—	(1)		5.5			9.7

(1) Earnings for 2008 were insufficient to cover fixed charges by $61.8 million.