Exhibit 12.1
KOPPERS HOLDINGS INC.
RATIO OF EARNINGS TO FIXED CHARGES
(Dollars in millions, except ratios)
| 2006 | 2007 | 2008 | 2009 | 2010 | Nine months ended September 30, 2011 | |||||||||||||||||||
Earnings: | ||||||||||||||||||||||||
Income from continuing operations before taxes | $ | 18.6 | $ | 79.5 | $ | 90.0 | $ | 35.5 | $ | 73.8 | $ | 78.5 | ||||||||||||
Deduct: Equity earnings net of dividends | (0.3 | ) | (0.2 | ) | (0.6 | ) | (0.8 | ) | — | 0.2 | ||||||||||||||
Deduct: Pre-tax income of noncontrolling interests | 1.9 | 3.1 | 0.8 | 3.4 | 0.5 | 0.6 | ||||||||||||||||||
Add: Fixed charges | 69.4 | 55.5 | 53.5 | 71.6 | 40.3 | 30.7 | ||||||||||||||||||
Earnings as defined | $ | 86.4 | $ | 132.1 | $ | 143.3 | $ | 104.5 | $ | 113.6 | $ | 108.4 | ||||||||||||
Fixed charges: | ||||||||||||||||||||||||
Interest expensed | $ | 61.3 | $ | 45.9 | $ | 41.4 | $ | 58.7 | $ | 27.1 | $ | 20.3 | ||||||||||||
Interest capitalized | 0.2 | 0.3 | — | — | — | — | ||||||||||||||||||
Other | — | — | 0.4 | 0.5 | — | — | ||||||||||||||||||
Rents | 26.1 | 31.1 | 39.0 | 41.5 | 42.5 | 33.6 | ||||||||||||||||||
Interest factor | 31 | % | 31 | % | 31 | % | 31 | % | 31 | % | 31 | % | ||||||||||||
Estimated interest component of rent | 8.1 | 9.6 | 12.1 | 12.9 | 13.2 | 10.4 | ||||||||||||||||||
Total fixed charges | $ | 69.6 | $ | 55.8 | $ | 53.9 | $ | 72.1 | $ | 40.3 | $ | 30.7 | ||||||||||||
Ratio of earnings to fixed charges | 1.24 | 2.37 | 2.66 | 1.45 | 2.82 | 3.53 | ||||||||||||||||||