Exhibit 12.1

CELANESE CORPORATION
COMPUTATION OF RATIO OF EARNINGS TO COMBINED FIXED CHARGES
AND PREFERRED DIVIDENDS (UNAUDITED)

				Predecessor																				Successor
				Year Ended December 31,																Three Months Ended March 31, 2004				Nine Months Ended December 31, 2004
				2000				2001				2002				2003
				(in $ millions, except ratio of earnings to combined fixed charges)
Earnings:
Earnings (loss) from continuing operations before tax and minority interest				$	184			$	(424	)		$	180			$	196			$	72			$	(174	)
Less:
Equity in net earnings of affiliates					(18	)			(12	)			(21	)			(35	)			(12	)			(36	)
Plus:
Income distributions from equity investments					12				19				61				23				15				22
Amortization of capitalized interest					9				9				10				14				2				6
Total fixed charges					103				104				89				85				16				332
Total earnings as defined before combined fixed charges				$	290			$	(304	)		$	319			$	283			$	93			$	150
Fixed charges:
Interest expense				$	68			$	72			$	55			$	49			$	6			$	300
Capitalized interest					12				4				6				3				3				4
Estimated interest portion of rent expense(1)					23				28				28				33				7				21
Preferred stock dividends					—				—				—				—				—				—
Guaranteed payment to minority shareholders					—				—				—				—				—				7
Total combined fixed charges				$	103			$	104			$	89			$	85			$	16			$	332
Ratio of earnings to combined fixed charges(2)					2.8	x			—				3.6	x			3.3	x			5.8	x			0.5	x

(1)	The estimated interest portion of rental expense is based on the amount of rental expense including discontinued operations for 2000 and excluding discontinued operations for subsequent periods.

(2)	Earnings were insufficient to cover combined fixed charges by $408 million for the year ended December 31, 2001 and $182 million for the nine months ended December 31, 2004.

CELANESE CORPORATION
COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
AND PREFERRED DIVIDENDS (UNAUDITED)

				Successor												Predecessor
				Six Months Ended June 30, 2005				Three Months Ended June 30, 2005				Three Months Ended June 30,2004				Three Months Ended March 31, 2004
Earnings:
Earnings (loss) from continuing operations before tax and minority interest					146				123				(104	)			72
Less:
Equity in net earnings of affiliates					(27	)			(12	)			(18	)			(12	)
Plus :
Income distributions from equity investments					46				10				6				15
Amortization of capitalized interest					3				1				2				2
Total fixed charges					277				84				137				16
Total earnings as defined before combined fixed charges					445				206				23				93
Fixed charges:
Interest expense					244				68				130				6
Capitalized interest					2				1				1				3
Estimated interest portion of rent expense					12				6				6				7
Cumulative undeclared and declared preferred stock dividends					4				2				—				—
Guaranteed payment to minority shareholders					15				7				—				—
Total combined fixed charges					277				84				137				16
Ratio of earnings to combined fixed charges(1)					1.6	x			2.5	x			0.2	x			5.8	x

(1)	Earnings were insufficient to cover combined fixed charges by $114 million for the three months ended June 30, 2004.