Exhibit 12.1
KOPPERS HOLDINGS INC.
RATIO OF EARNINGS TO FIXED CHARGES
(Dollars in millions, except ratios)
| 2005 | 2006 | 2007 | 2008 | 2009 | Three months ended March 31, 2010 |
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| Earnings: |
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| Income from continuing operations before taxes |
$ | 18.2 | $ | 18.6 | $ | 79.5 | $ | 90.0 | $ | 35.5 | $ | 11.6 | ||||||||||||
| Deduct: Equity earnings net of dividends |
0.1 | (0.3 | ) | (0.2 | ) | (0.6 | ) | (0.8 | ) | — | ||||||||||||||
| Deduct: Pre-tax income of noncontrolling interests |
2.7 | 1.9 | 3.1 | 0.8 | 3.4 | 0.2 | ||||||||||||||||||
| Add: Fixed charges |
59.7 | 69.4 | 55.5 | 53.5 | 71.6 | 10.2 | ||||||||||||||||||
| Earnings as defined |
$ | 75.1 | $ | 86.4 | $ | 132.1 | $ | 143.3 | $ | 104.5 | $ | 21.6 | ||||||||||||
| Fixed charges: |
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| Interest expensed |
$ | 51.7 | $ | 61.3 | $ | 45.9 | $ | 41.4 | $ | 58.7 | $ | 6.9 | ||||||||||||
| Interest capitalized |
— | 0.2 | 0.3 | — | — | — | ||||||||||||||||||
| Other |
— | — | — | 0.4 | 0.5 | — | ||||||||||||||||||
| Rents |
25.7 | 26.1 | 31.1 | 39.0 | 41.5 | 10.8 | ||||||||||||||||||
| Interest factor |
31 | % | 31 | % | 31 | % | 31 | % | 31 | % | 31 | % | ||||||||||||
| Estimated interest component of rent |
8.0 | 8.1 | 9.6 | 12.1 | 12.9 | 3.3 | ||||||||||||||||||
| Total fixed charges |
$ | 59.7 | $ | 69.6 | $ | 55.8 | $ | 53.9 | $ | 72.1 | $ | 10.2 | ||||||||||||
| Ratio of earnings to fixed charges |
1.26 | 1.24 | 2.37 | 2.66 | 1.45 | 2.11 | ||||||||||||||||||
| Preference dividends |
$ | 29.0 | $ | — | $ | — | $ | — | $ | — | $ | — | ||||||||||||
| Ratio of pre-tax income to net income |
1.72 | — | — | — | — | — | ||||||||||||||||||
| Preferred dividend factor |
$ | 49.9 | $ | — | $ | — | $ | — | $ | — | $ | — | ||||||||||||
| Ratio of earnings to combined fixed charges and preference dividends (1) |
— | 1.24 | 2.37 | 2.66 | 1.45 | 2.11 | ||||||||||||||||||
| (1) | Earnings were insufficient to cover combined fixed charges and preference dividends by and $34.5 million in 2005. |