EXHIBIT 12.1



Statement of Computation of Ratio of Earnings to Fixed Charges



|                                                                                                         |  |                                |         |      |   |         |      |  |   |        |   |  |      |        |   |  |   |        |  
|-------------------------------------------------------------------------------------------------------- |  | ------------------------------ | ------- | ---- | - | ------- | ---- |  | - | ------ | - |  | ---- | ------ | - |  | - | ------ | -
|                                                                                                         |  | For the year ended December 31 |        
|                                                                                                         |  | 2005                           |         | 2004 |   |         | 2003 |  |   | 2002   |   |  | 2001 |       
|Earnings:                                                                                                |  |                                |         |      |   |         |      |  |   |        |   |  |      |        |   |  |   |        |  
|Income (loss) before income taxes, minority interest, and cumulative effect of accounting change         |  | $                              | 75,238  |      | $ | (16,139 | )    |  | $ | (1,496 | ) |  | $    | 11,268 |   |  | $ | (4,639 | )
|Add (less): Equity earnings (loss)                                                                       |  |                                | 1,560   |      |   | 267     |      |  |   | (789   | ) |  |      | (2,403 | ) |  |   | (3,131 | )
|Add: Dividends                                                                                           |  |                                |        |      |   |        |      |  |   | 150    |   |  |      | 2,828  |   |  |   | 1,054  |  
|                                                                                                         |  |                                |         |      |   |         |      |  |   |        |   |  |      |        |   |  |   |        |  
|Sub-total:                                                                                               |  |                                | 76,798  |      |   | (15,872 | )    |  |   | (2,135 | ) |  |      | 11,693 |   |  |   | (6,716 | )
|Add: Total fixed charges (per below)                                                                     |  |                                | 46,214  |      |   | 31,638  |      |  |   | 17,945 |   |  |      | 11,255 |   |  |   | 12,581 |  
|Less: Interest capitalized                                                                               |  |                                | 1,301   |      |   | 436     |      |  |   | 152    |   |  |      | 212    |   |  |   | 336    |  
|                                                                                                         |  |                                |         |      |   |         |      |  |   |        |   |  |      |        |   |  |   |        |  
|Total earnings (loss) before income taxes, minority interest, and cumulative effect of accounting change |  | $                              | 121,711 |      | $ | 15,330  |      |  | $ | 15,658 |   |  | $    | 22,736 |   |  | $ | 5,529  |  
|                                                                                                         |  |                                |         |      |   |         |      |  |   |        |   |  |      |        |   |  |   |        |  
|Fixed Charges:                                                                                           |  |                                |         |      |   |         |      |  |   |        |   |  |      |        |   |  |   |        |  
|Interest expense, including interest capitalized                                                         |  | $                              | 43,187  |      | $ | 29,226  |      |  | $ | 15,958 |   |  | $    | 9,939  |   |  | $ | 11,374 |  
|Portion of rental expense representative of the interest factor                                          |  |                                | 3,027   |      |   | 2,412   |      |  |   | 1,987  |   |  |      | 1,316  |   |  |   | 1,207  |  
|                                                                                                         |  |                                |         |      |   |         |      |  |   |        |   |  |      |        |   |  |   |        |  
|Total fixed charges                                                                                      |  | $                              | 46,214  |      | $ | 31,638  |      |  | $ | 17,945 |   |  | $    | 11,255 |   |  | $ | 12,581 |  
|                                                                                                         |  |                                |         |      |   |         |      |  |   |        |   |  |      |        |   |  |   |        |  
|Ratio of Earnings to Fixed Charges                                                                       |  |                                | 2.6     |      |   | (a      | )    |  |   | (a     | ) |  |      | 2.0    |   |  |   | (a     | )
|                                                                                                         |  |                                |         |      |   |         |      |  |   |        |   |  |      |        |   |  |   |        |  

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|(a) | For fiscal years 2004, 2003 and 2001 earnings were insufficient to cover fixed charges by $16,308, $2,287 and $7,052, respectively.
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