Lyondell Chemical (LYO) S-3ASR Automatic shelf registration

Exhibit 12.1

LYONDELLBASELL INDUSTRIES N.V.

STATEMENT SETTING FORTH DETAIL FOR COMPUTATION OF

RATIO OF EARNINGS TO FIXED CHARGES

	Successor						Predecessor
	For the Nine Months Ended								For the Year Ended
			May 1		May 1		January 1,
			through		through		through
	September 30,		December 31,		September 30,		April 30,		December 31,			December 31,			December 31,		December 31,
Millions of dollars, except ratio data	2011		2010		2010		2010		2009			2008			2007		2006
Income (loss) from continuing operations before income taxes	$	3,498	$	1,686	$	1,096	$	7,383	$	(4,283	)	$	(8,191	)	$	940	$	630
Deduct income (loss) from equity investments		183		86		56		84		(181	)		38			162		130
Add distributions of earnings from equity investments		162		34		28		18		26			98			148		44
Earnings adjusted for equity investments.		3,477		1,634		1,068		7,317		(4,076	)		(8,131	)		926		544
Fixed charges:
Interest expense, gross		495		545		314		713		1,795			2,476			353		332
Portion of rentals representative of interest		68		56		43		35		104			183			24		17
Total fixed charges before capitalized interest		563		601		357		748		1,899			2,659			377		349
Capitalized interest		1		2		2		4		35			13			3		1
Total fixed charges including capitalized interest		564		603		359		752		1,934			2,672			380		350
Earnings before fixed charges	$	4,041	$	2,237	$	1,427	$	8,069	$	(2,142	)	$	(5,459	)	$	1,306	$	894
Ratio of earnings to fixed charges(a)		7.16		3.71		3.97		10.73		—			—			3.44		2.55

(a) For the years 2009 and 2008, earnings were insufficient to cover fixed charges by $4,076 million and $8,131 million, respectively.