##### 



Exhibit 12


CELANESE HOLDINGS LLC


COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
(UNAUDITED)


|                                                                         |                                              |                                          |     |     |                    |  |     |     |  
|------------------------------------------------------------------------ | -------------------------------------------- | ---------------------------------------- | --- | --- | ------------------ |  | --- | --- | -
|                                                                         |                                              | Three Months Ended                       |     |     | Three Months Ended | 
|                                                                         |                                              | March 31, 2006                           |     |     | March 31, 2005     | 
|                                                                         |                                              |                                          |     |     |                    | 
|                                                                         |                                              | (In $ millions, except ratio of earnings |    
|                                                                         |                                              | to combined fixed charges)               |    
|Earnings:                                                                |                                              |                                          |     |     |                    |  |     |    
|Earnings from continuing operations before tax and minority
    interest |                                              |                                          | 175 |     |                    |  | 47  |    
|Less:                                                                    |                                              |                                          |     |     |                    |  |     |    
|                                                                         | Equity in net earnings of affiliates         |                                          |     | (21 | )                  |  |     | (15 | )
|Plus:                                                                    |                                              |                                          |     |     |                    |  |     |    
|                                                                         | Income distributions from equity investments |                                          |     | 17  |                    |  |     | 36  |  
|                                                                         | Amortization of capitalized interest         |                                          |     | 1   |                    |  |     | 1   |  
|                                                                         | Total fixed charges                          |                                          |     | 72  |                    |  |     | 155 |  
|                                                                         |                                              |                                          |     |     |                    | 
|Total earnings as defined before combined fixed charges                  |                                              |                                          | 244 |     |                    |  | 224 |    
|                                                                         |                                              |                                          |     |     |                    | 
|Fixed charges:                                                           |                                              |                                          |     |     |                    |  |     |    
|Interest expense                                                         |                                              |                                          | 61  |     |                    |  | 140 |    
|Capitalized interest                                                     |                                              |                                          | 1   |     |                    |  | 1   |    
|Estimated interest portion of rent expense                               |                                              |                                          | 9   |     |                    |  | 6   |    
|Guaranteed payment to minority shareholders                              |                                              |                                          | 1   |     |                    |  | 8   |    
|                                                                         |                                              |                                          |     |     |                    | 
|Total combined fixed charges                                             |                                              |                                          | 72  |     |                    |  | 155 |    
|                                                                         |                                              |                                          |     |     |                    | 
|Ratio of earnings to combined fixed charges                              |                                              |                                          | 3.4 |     |                    |  | 1.4 |