Exhibit 12

CELANESE CORPORATION

COMPUTATION OF RATIO EARNINGS TO FIXED CHARGES

	Successor									Predecessor
							Nine Months			Three Months
							Ended			Ended
	Year Ended December 31,						December 31,			March 31,			Year Ended December 31,
	2006			2005			2004			2004			2003			2002
	(In $ millions, except ratio of earnings to combined fixed charges)
Earnings:
Earnings (loss) from continuing operations before tax and minority interest		664			374			(180	)		66			172			160
Less:
Equity in net earnings of affiliates		(86	)		(61	)		(36	)		(12	)		(35	)		(21	)
Plus:
Income distributions from equity investments		109			66			22			16			23			61
Amortization of capitalized interest		3			3			1			2			14			10
Total fixed charges		350			454			333			16			72			89
Total earnings as defined before combined fixed charges		1,040			836			140			88			246			299
Fixed charges:
Interest expense		294			387			300			6			49			55
Capitalized interest		6			4			4			3			3			6
Estimated interest portion of rent expense		36			31			21			7			20			28
Cumulative preferred stock dividends		10			10			—			—			—			—
Guaranteed payment to minority shareholders		4			22			8			—			—			—
Total combined fixed charges		350			454			333			16			72			89
Ratio of earnings to combined fixed charges		3.0			1.8			—			5.5			3.4			3.4
Excess (Deficiency)		690			382			(193	)		72			174			210