##### 



Exhibit 
7.1
 Grupo TMM, S.A. and Subsidiaries
COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES UNDER U.S. GAAP
 December 31,2005
    
    
    2004
    
    
    2003
    
    
    2002
    
    
    2001Historical ratio:Fixed charges:Interest costs and amortization on debt
discount or premium in all indebtedness
    
    
    89,652
    
    
    
    97,367
    
    
    
    61,004
    
    
    
    64,337
    
    
    
    53,317Portion of rent expense representative
of interest factor (A)
    
    
    23,730
    
    
    
    16,777
    
    
    
    12,048
    
    
    
    10,225
    
    
    
    17,491Fixed charges
    
    
    113,382
    
    
    
    114,144
    
    
    
    73,052
    
    
    
    74,562
    
    
    
    70,808Earnings:Pretax income from continuing operations
    
    
    (77,654
    )
    
    
    (71,394
    )
    
    
    (123,298
    )
    
    
    (53,300
    )
    
    
    (50,372
    )Less:Minority interest
    
    
    4,455
    
    
    
    2,635
    
    
    
    1,588
    
    
    
    (669
    )
    
    
    4,400Equity investee income/loss
    
    
    752
    
    
    
    885
    
    
    
    (759
    )
    
    
    918
    
    
    
    1,374Fixed charges
    
    
    113,382
    
    
    
    114,144
    
    
    
    73,052
    
    
    
    74,562
    
    
    
    70,808Amortization of capitalized interest
    
    
    86
    
    
    
    345
    
    
    
    345
    
    
    
    345
    
    
    
    345Distributed income of equity investees
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    1274
    
    
    
    Earnings
    
    
    30,607
    
    
    
    39,575
    
    
    
    (50,730
    )
    
    
    22,632
    
    
    
    15,007Ratio of earnings to fixed charges
    
    
    (N/A
    )(B)
    
    
    (N/A
    )(B)
    
    
    (N/A
    )(B)
    
    
    (N/A
    )(B)
    
    
    (N/A
    )(B)
 
 (A)
    
    The Company considered one-third of the rent expense as imputed interest factor.(B)
    
    Due to the registrants loss in 2005, 2004, 2003, 2002 and 2001, the ratio of earnings
to fixed charges was less than 1:1. The registrant must generate additional earnings of $82.8
million, $74.6 million, $123.8 million, $51.9 million and $55.8 million, respectively, to
achieve a coverage ratio of 1:1.Note:
    
    This information reflects discontinued operations figures (see Note 2 of the Financial
Statements).




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Grupo TMM and Subsidiaries
COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES UNDER IFRS
 December 31,2005
    
    
    2004
    
    
    2003
    
    
    2002
    
    
    2001Historical ratio:Fixed charges:Interest costs and amortization on debt
discount or premium in all indebtedness
    
    
    96,037
    
    
    
    89,317
    
    
    
    61,297
    
    
    
    61,632
    
    
    
    54,100Portion of rent expense representative
of interest factor (A)
    
    
    24,176
    
    
    
    17,851
    
    
    
    13,121
    
    
    
    13,511
    
    
    
    19,895Fixed charges
    
    
    120,213
    
    
    
    107,168
    
    
    
    74,418
    
    
    
    75,143
    
    
    
    73,995Earnings:Pretax income from continuing operations
    
    
    (85,495
    )
    
    
    (65,659
    )
    
    
    (120,430
    )
    
    
    (69,073
    )
    
    
    (54,308
    )Less:Minority interest
    
    
    4,188
    
    
    
    2,655
    
    
    
    2,042
    
    
    
    552
    
    
    
    4,199Equity investee (income) loss
    
    
    752
    
    
    
    885
    
    
    
    (759
    )
    
    
    918
    
    
    
    1,374Fixed charges
    
    
    120,213
    
    
    
    107,168
    
    
    
    74,418
    
    
    
    75,143
    
    
    
    73,995Amortization of capitalized interest
    
    
    86
    
    
    
    345
    
    
    
    345
    
    
    
    345
    
    
    
    345Distributed income of equity investees
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    1,274
    
    
    
    Earnings
    
    
    29,864
    
    
    
    38,314
    
    
    
    (46,950
    )
    
    
    6,219
    
    
    
    14,459Ratio of earnings to fixed charges
    
    
    (N/A
    )(B)
    
    
    (N/A
    )(B)
    
    
    (N/A
    )(B)
    
    
    (N/A
    )(B)
    
    
    (N/A
    )(B)
 
 (A)
    
    The Company considered one-third of the rent expense as imputed interest factor.(B)
    
    Due to the registrants loss in 2005, 2004, 2003, 2002 and 2001, the ratio of earnings to
fixed charges was less than 1:1. The registrant must generate additional earnings of $90.3,
$68.9 million, $121.4 million, $68.9 million and $59.5 million , respectively, to achieve a
coverage ratio of 1:1.Note:
    
    This information reflects discontinued operations figures (see Note 2 of the Financial
Statements).