Exhibit 7.1

Grupo TMM, S.A.B. and Subsidiaries

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
UNDER IFRS

(Amounts in thousands of pesos)



|                                                                                |  |              |           |      |      |  |           |      |  |  |           |      |  |      |            |      |  |  |           | 
|------------------------------------------------------------------------------- |  | ------------ | --------- | ---- | ---- |  | --------- | ---- |  |  | --------- | ---- |  | ---- | ---------- | ---- |  |  | --------- | 
|                                                                                |  | December 31, |          
|                                                                                |  | 2012         |           |      | 2011 |  |           | 2010 |  |  | 2009      |      |  | 2008 |           
|Historical ratio:                                                               |  |              |           |      |      |  |           |      |  |  |           |      |  |      |            |      |  |  |           | 
|Fixed charges:                                                                  |  |              |           |      |      |  |           |      |  |  |           |      |  |      |            |      |  |  |           | 
|Interest costs and amortization on debt discount or premium in all indebtedness |  |              | 987,890   |      |      |  | 1,041,482 |      |  |  | 987,796   |      |  |      | 1,284,215  |      |  |  | 1,017,560 | 
|Portion of rent expense representative of interest factor (A)                   |  |              | 92,045    |      |      |  | 104,447   |      |  |  | 157,385   |      |  |      | 210,309    |      |  |  | 286,533   | 
|                                                                                |  |              |           |      |      |  |           |      |  |  |           |      |  |      |            |      |  |  |           | 
|Fixed charges                                                                   |  |              | 1,079,935 |      |      |  | 1,145,929 |      |  |  | 1,145,181 |      |  |      | 1,494,524  |      |  |  | 1,304,093 | 
|                                                                                |  |              |           |      |      |  |           |      |  |  |           |      |  |      |            |      |  |  |           | 
|Earnings:                                                                       |  |              |           |      |      |  |           |      |  |  |           |      |  |      |            |      |  |  |           | 
|Pretax income from continuing operations                                        |  |              | (772,333  | )    |      |  | 232,643   |      |  |  | (994,964  | )    |  |      | (1,277,892 | )    |  |  | 1,064,306 | 
|Less:                                                                           |  |              |           |      |      |  |           |      |  |  |           |      |  |      |            |      |  |  |           | 
|Non-controlling interest                                                        |  |              | 5,338     |      |      |  | 12,539    |      |  |  | 20,814    |      |  |      | 18,645     |      |  |  | 5,648     | 
|Equity investee (income) loss                                                   |  |              |          |      |      |  |          |      |  |  | 1,719     |      |  |      | 2,581      |      |  |  | 3,665     | 
|Fixed charges                                                                   |  |              | 1,079,935 |      |      |  | 1,145,929 |      |  |  | 1,145,181 |      |  |      | 1,494,524  |      |  |  | 1,304,093 | 
|Less:                                                                           |  |              |           |      |      |  |           |      |  |  |           |      |  |      |            |      |  |  |           | 
|Capitalized interest                                                            |  |              |           |      |      |  |           |      |  |  |           |      |  |      |            |      |  |  | 93,046    | 
|                                                                                |  |              |           |      |      |  |           |      |  |  |           |      |  |      |            |      |  |  |           | 
|Earnings                                                                        |  |              | 302,264   |      |      |  | 1,366,033 |      |  |  | 127,684   |      |  |      | 195,406    |      |  |  | 2,266,040 | 
|                                                                                |  |              |           |      |      |  |           |      |  |  |           |      |  |      |            |      |  |  |           | 
|Ratio of earnings to fixed charges                                              |  |              | (N/A      | )(B) |      |  | 1.19      |      |  |  | (N/A      | )(B) |  |      | (N/A       | )(B) |  |  | 1.74      | 
|                                                                                |  |              |           |      |      |  |           |      |  |  |           |      |  |      |            |      |  |  |           | 



|(A) | The Company considered one-third of the rent expense as imputed interest factor.
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|(B) | Due to the registrants loss in 2012, 2010 and 2009, the ratio of earning to fixed charges was less than 1:1. The registrant must generate additional earnings of
Ps. 777.7 million, Ps. 1,017.5 million, and Ps. 1,299.1 million, respectively to achieve a coverage ratio of 1:1.
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