Exhibit 12.1

EXHIBIT 12.1—STATEMENT REGARDING COMPUTATION OF FINANCIAL RATIOS

(dollar amounts in millions except per share figures)

		2009			2008			2007			2006			2005
1. NET INCOME/(LOSS) ATTRIBUTABLE TO INNOSPEC INC. AS A PERCENT OF SALES
A	Net income/(loss) attributable to Innospec Inc.	$	6.4		$	12.5		$	29.5		$	11.4		$	(123.7	)
B	Net sales	$	598.5		$	640.5		$	602.4		$	532.1		$	564.8
A % of B			1.1	%		2.0	%		4.9	%		2.1	%		(21.9	)%
2. EFFECTIVE INCOME TAX RATE AS A PERCENT
C	Income taxes	$	11.9		$	6.3		$	18.2		$	20.4		$	4.2
D	Income/(loss) before income taxes	$	18.3		$	18.9		$	47.8		$	31.9		$	(117.9	)
C % of D			65.0	%		33.3	%		38.1	%		63.9	%		(3.6	)%
3. CURRENT RATIO
E	Current assets	$	282.9		$	256.6		$	256.1		$	305.3		$	239.8
F	Current liabilities	$	179.9		$	188.1		$	160.7		$	142.9		$	140.5
E % of F			1.6	%		1.4	%		1.6	%		2.1	%		1.7	%
4. EARNINGS PER SHARE ATTRIBUTABLE TO INNOSPEC INC.
G	Net income/(loss) attributable to Innospec Inc.	$	6.4		$	12.5		$	29.5		$	11.4		$	(123.7	)
H	Basic shares outstanding		23,642			23,595			23,920			24,141			24,737
I	Diluted shares outstanding		24,714			24,391			24,838			25,339			24,737
G/H	Basic earnings per share attributable to Innospec Inc.	$	0.27		$	0.53		$	1.23		$	0.47		$	(5.00	)
G/I	Diluted earnings per share attributable to Innospec Inc.	$	0.26		$	0.51		$	1.19		$	0.45		$	(5.00	)

Shares in thousands, earnings per share attributable to Innospec Inc. in dollars.