Exhibit 12.1

CHAPARRAL STEEL COMPANY

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

(dollar amounts in thousands)



|                                                                  |  |                    |         |      |   |         |  |      |         |  |      |        |   |  |   |          |  
|----------------------------------------------------------------- |  | ------------------ | ------- | ---- | - | ------- |  | ---- | ------- |  | ---- | ------ | - |  | - | -------- | -
|                                                                  |  | Year Ended May 31, |        
|                                                                  |  | 2007               |         | 2006 |   | 2005    |  | 2004 |         |  | 2003 |       
|Earnings:                                                         |  |                    |         |      |   |         |  |      |         |  |      |        |   |  |   |          |  
|Income (loss) from continuing operations before income taxes      |  | $                  | 406,730 |      | $ | 239,346 |  | $    | 120,210 |  | $    | (8,997 | ) |  | $ | (100,580 | )
|Fixed charges                                                     |  |                    | 32,668  |      |   | 32,530  |  |      | 47,871  |  |      | 50,211 |   |  |   | 51,867   |  
|Amortization of capitalized interest                              |  |                    | 1,703   |      |   | 1,703   |  |      | 1,703   |  |      | 1,703  |   |  |   | 1,703    |  
|                                                                  |  |                    |         |      |   |         |  |      |         |  |      |        |   |  |   |          |  
|Total earnings (loss)                                             |  | $                  | 441,101 |      | $ | 273,579 |  | $    | 169,784 |  | $    | 42,917 |   |  | $ | (47,010  | )
|                                                                  |  |                    |         |      |   |         |  |      |         |  |      |        |   |  |   |          |  
|                                                                  |  |                    |         |      |  
|Fixed charges:                                                    |  |                    |         |      |   |         |  |      |         |  |      |        |   |  |   |          |  
|Interest expense                                                  |  | $                  | 30,481  |      | $ | 30,805  |  | $    | 47,275  |  | $    | 49,597 |   |  | $ | 51,027   |  
|Net amortization of debt discounts, premiums and issuance expense |  |                    | 1,324   |      |   | 1,210   |  |      |        |  |      |       |   |  |   |         |  
|Interest factor included in rents                                 |  |                    | 863     |      |   | 515     |  |      | 596     |  |      | 614    |   |  |   | 840      |  
|                                                                  |  |                    |         |      |   |         |  |      |         |  |      |        |   |  |   |          |  
|Fixed charges                                                     |  | $                  | 32,668  |      | $ | 32,530  |  | $    | 47,871  |  | $    | 50,211 |   |  | $ | 51,867   |  
|                                                                  |  |                    |         |      |   |         |  |      |         |  |      |        |   |  |   |          |  
|Ratio of earnings to fixed charges                                |  |                    | 13.50x  |      |   | 8.41x   |  |      | 3.55x   |  |      |       |   |  |   |         |  
|                                                                  |  |                    |         |      |  
|Deficiency of earnings to cover fixed charges                     |  | $                  |        |      | $ |        |  | $    |        |  | $    | 7,294  |   |  | $ | 98,877   |