Exhibit 12.1

EXHIBIT 12.1 – STATEMENT REGARDING COMPUTATION OF FINANCIAL RATIOS

(in millions except financial ratios, share and per share data)

		2012			2011			2010			2009			2008
1. NET INCOME ATTRIBUTABLE TO INNOSPEC INC. AS A PERCENTAGE OF SALES
	A          Net income attributable to Innospec Inc.	$	68.3		$	48.9		$	73.7		$	6.4		$	12.5
	B          Net sales	$	776.4		$	774.4		$	683.2		$	598.5		$	640.5
	A % of B		8.8	%		6.3	%		10.8	%		1.1	%		2.0	%
2. EFFECTIVE TAX RATE AS A PERCENTAGE
	C          Income taxes	$	26.9		$	3.7		$	(3.0	)	$	11.9		$	6.3
	D          Income before income taxes	$	95.2		$	52.6		$	70.7		$	18.3		$	18.9
	C % of D		28.3	%		7.0	%		-4.2	%		65.0	%		33.3	%
3. CURRENT RATIO
	E          Current assets	$	296.6		$	320.3		$	321.9		$	282.9		$	256.6
	F          Current liabilities	$	147.3		$	146.0		$	158.9		$	179.9		$	188.1
	Ratio of E to F		2.0			2.2			2.0			1.6			1.4
4. EARNINGS PER SHARE ATTRIBUTABLE TO INNOSPEC INC.
	G          Net income attributable to Innospec Inc.	$	68.3		$	48.9		$	73.7		$	6.4		$	12.5
	H          Basic shares outstanding		23,187			23,568			23,756			23,642			23,595
	I            Diluted shares outstanding		23,850			24,520			24,814			24,714			24,391
	G/H      Basicearnings per share attributable to Innospec Inc.	$	2.95		$	2.07		$	3.10		$	0.27		$	0.53
	G/I        Dilutedearnings per share attributable to Innospec Inc.	$	2.86		$	1.99		$	2.97		$	0.26		$	0.51

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