EXHIBIT 12.1

Celanese Corporation and Subsidiaries
Statement of Computation of Ratio of Earnings to Fixed Charges

	Three Months
	Ended
	March 31,			Year Ended December 31,
	2011			2010			2009			2008			2007			2006
	(In $ millions, except ratios)
Earnings:
Earnings (loss) from continuing operations before tax		180			538			251			433			437			549
Subtract
Equity in net earnings of affiliates		(43	)		(168	)		(99	)		(172	)		(150	)		(162	)
Add
Income distributions from equity investments		73			138			78			183			135			162
Amortization of capitalized interest		1			2			2			2			1			3
Total fixed charges		69			262			268			324			322			350
Total earnings as defined before combined fixed charges		280			772			500			770			745			902
Fixed charges:
Interest expense		55			204			207			261			262			294
Capitalized interest		1			2			2			6			9			6
Estimated interest portion of rent expense		13			53			49			47			41			36
Cumulative preferred stock dividends		—			3			10			10			10			10
Guaranteed payment to minority shareholders		—			—			—			—			—			4
Total combined fixed charges		69			262			268			324			322			350
Ratio of earnings to combined fixed charges		4.0	x		2.9x			1.9x			2.4x			2.3x			2.6x