Innospec (IOSP) 10-K 2015 FY Annual report

Exhibit 12.1

EXHIBIT 12.1 – STATEMENT REGARDING COMPUTATION OF FINANCIAL RATIOS

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

		2015			2014			2013			2012			2011
1. NET INCOME ATTRIBUTABLE TO INNOSPEC INC. AS A PERCENTAGE OF SALES
	A          Net income attributable to Innospec Inc.	$	119.5		$	84.1		$	77.8		$	66.9		$	47.1
	B          Net sales	$	1012.3		$	960.9		$	818.8		$	776.4		$	774.4
	A % of B		11.8	%		8.8	%		9.5	%		8.6	%		6.1	%
2. EFFECTIVE TAX RATE AS A PERCENTAGE
	C          Income taxes	$	32.8		$	26.8		$	15.0		$	26.4		$	3.1
	D          Income before income taxes	$	152.3		$	110.9		$	92.8		$	93.3		$	50.2
	C % of D		21.5	%		24.2	%		16.2	%		28.3	%		6.2	%
3. CURRENT RATIO
	E          Current assets	$	458.7		$	414.2		$	407.4		$	296.6		$	320.3
	F          Current liabilities	$	206.1		$	222.9		$	155.6		$	147.3		$	146.0
	Ratio of E to F		2.2			1.9			2.6			2.0			2.2
4. EARNINGS PER SHARE ATTRIBUTABLE TO INNOSPEC INC.
	G          Net income attributable to Innospec Inc.	$	119.5		$	84.1		$	77.8		$	66.9		$	47.1
	H          Basic shares outstanding		24,107			24,391			23,651			23,187			23,568
	I            Diluted shares outstanding		24,612			24,878			24,156			23,850			24,520
	G/H      Basicearnings per share attributable to Innospec Inc.	$	4.96		$	3.45		$	3.29		$	2.89		$	2.00
	G/I        Dilutedearnings per share attributable to Innospec Inc.	$	4.86		$	3.38		$	3.22		$	2.81		$	1.92

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