Exhibit 12.1

KOPPERS HOLDINGS INC.

RATIO OF EARNINGS TO FIXED CHARGES

(Dollars in millions, except ratios)

	2010			2011			2012			2013			2014			Twelve Months Ended December 31, 2015
Earnings:
Income (loss) from continuing operations    before taxes	$	73.8		$	52.5		$	100.6		$	77.0		$	(5.9	)	$	(80.1	)
Deduct: Equity earnings net of dividends	0.0				0.2			0.8			0.8			(1.6	)		(3.1	)
Deduct: Pre-tax income of noncontrolling    interests		0.5			0.9			2.0		0.0			0.0			0.0
Add: Fixed charges		40.3			40.8			41.6			39.4			51.8			64.6
Earnings as defined	$	113.6		$	92.2		$	139.4		$	115.6		$	47.5		$	(12.4	)
Fixed charges:
Interest expensed	$	27.1		$	27.2		$	27.9		$	26.8		$	39.1		$	50.7
Other	0.0			0.0			0.0				0.4		1.3				0.0
Rents		42.5			43.8			44.3			39.4			36.7			44.7
Interest factor		31	%		31	%		31	%		31	%		31	%		31	%
Estimated interest component of rent		13.2			13.6			13.7			12.2			11.4		$	13.9
Total fixed charges	$	40.3		$	40.8		$	41.6		$	39.4		$	51.8		$	64.6
Ratio of earnings to fixed charges(1)		2.82			2.26			3.35			2.93			0.92			(0.19	)

(1) In 2015, earnings did not cover fixed charges by $77.0 million.