Exhibit 10.1


                              AMENDED AND RESTATED
                              ACQUISITION AGREEMENT

                                  BY AND AMONG

                              KANSAS CITY SOUTHERN,
                             A DELAWARE CORPORATION,

                                 KARA SUB, INC.,
                             A DELAWARE CORPORATION,

                             KCS INVESTMENT I, LTD.,
                             A DELAWARE CORPORATION

                        KCS ACQUISITION SUBSIDIARY, INC.,
                             A DELAWARE CORPORATION

                          CAYMEX TRANSPORTATION, INC.,
                             A DELAWARE CORPORATION

                                GRUPO TMM, S.A.,
                       A SOCIEDAD ANONIMA ORGANIZED UNDER
                     THE LAWS OF THE UNITED MEXICAN STATES,

                           TMM HOLDINGS, S.A. DE C.V.,
                     A SOCIEDAD ANONIMA DE CAPITAL VARIABLE
             ORGANIZED UNDER THE LAWS OF THE UNITED MEXICAN STATES,

                          TMM MULTIMODAL, S.A. DE C.V.,
                     A SOCIEDAD ANONIMA DE CAPITAL VARIABLE
              ORGANIZED UNDER THE LAWS OF THE UNITED MEXICAN STATES

                                       AND

            GRUPO TRANSPORTACION FERROVIARIA MEXICANA, S.A. DE C.V.,
                     A SOCIEDAD ANONIMA DE CAPITAL VARIABLE
              ORGANIZED UNDER THE LAWS OF THE UNITED MEXICAN STATES


                          DATED AS OF DECEMBER 15, 2004






                                TABLE OF CONTENTS


ARTICLE 1 STOCK PURCHASE.......................................................2
   Section 1.1 Stock Purchase and Escrow.......................................2
   Section 1.2 Stock Purchase Price............................................2
   Section 1.3 Intercompany Account Settlement.................................3
ARTICLE 2 CAPITAL REDUCTION; SUBSIDIARY INVESTMENT.............................4
   Section 2.1 GTFM Capital Reduction; Subsidiary Investment...................4
ARTICLE 3 THE MERGER...........................................................4
   Section 3.1 The Merger......................................................4
ARTICLE 4 CLOSING..............................................................5
   Section 4.1 Closing.........................................................5
   Section 4.2 Actions at Closing..............................................5
   Section 4.3 Conversion of Securities........................................7
ARTICLE 5 REPRESENTATIONS AND WARRANTIES OF SELLERS............................7
   Section 5.1 Organization and Related Matters................................7
   Section 5.2 Authorized Capitalization.......................................8
   Section 5.3 GTFM and GTFM Subsidiaries.....................................10
   Section 5.4 Authority; No Violation........................................10
   Section 5.5 Consents and Approvals.........................................11
   Section 5.6 Financial Statements; Undisclosed Liabilities..................12
   Section 5.7 Contracts......................................................13
   Section 5.8 Intellectual Property Rights...................................14
   Section 5.9 Employee Benefit Matters.......................................14
   Section 5.10 Labor and Other Employment Matters............................16
   Section 5.11 Tax Matters...................................................17
   Section 5.12 Legal Proceedings.............................................19
   Section 5.13 Permits and Compliance........................................19
   Section 5.14 Environmental Matters.........................................20
   Section 5.15 Properties....................................................21
   Section 5.16 Insurance.....................................................21
   Section 5.17 No Other Broker...............................................21
   Section 5.18 No GTFM Material Adverse Effect...............................22
   Section 5.19 Sufficiency of and Title to Assets............................22
   Section 5.20 Information in Filed Documents................................22
   Section 5.21 Affiliate Agreements..........................................22
   Section 5.22 No Loss of Significant Customers..............................23
   Section 5.23 Trading in and Ownership of KCS Common Stock..................23
   Section 5.24 Solvency......................................................23
   Section 5.25 Termination of Option Agreement...............................23
ARTICLE 6 REPRESENTATIONS AND WARRANTIES OF KCS...............................24



   Section 6.1 Organization and Related Matters...............................24
   Section 6.2 Authority; No Violation........................................24
   Section 6.3 Consents and Approvals.........................................26
   Section 6.4 Authorized Capitalization......................................27
   Section 6.5 SEC Filings....................................................27
   Section 6.6 Financial Statements; Undisclosed Liabilities..................28
   Section 6.7 No Other Broker................................................28
   Section 6.8 Information in Filed Documents.................................28
   Section 6.9 No KCS Material Adverse Effect; Other Actions..................29
   Section 6.10 KCS Sub.......................................................29
   Section 6.11 Legal Proceedings.............................................30
   Section 6.12 KCS Capital Resources.........................................30
   Section 6.13 Employee Benefit Matters......................................30
   Section 6.14 Labor and Other Employment Matters............................31
   Section 6.15 Tax...........................................................31
   Section 6.16 Permits and Compliance........................................31
   Section 6.17 Environmental Matters.........................................31
   Section 6.18 Properties....................................................32
ARTICLE 7 COVENANTS AND ADDITIONAL AGREEMENTS.................................32
   Section 7.1 Interim Governance Arrangements; Conduct of Business
               by the GTFM Group..............................................32
   Section 7.2 Conduct of Business by KCS and its Subsidiaries................36
   Section 7.3 Confidentiality................................................37
   Section 7.4 Regulatory Matters; Governing Documents; Third-Party Consents..37
   Section 7.5 Stockholder Approvals..........................................39
   Section 7.6 Tax Matters....................................................40
   Section 7.7 Insurance......................................................41
   Section 7.8 Notification of Certain Matters................................41
   Section 7.9 Further Assurances.............................................41
   Section 7.10 Third-Party Matters...........................................41
   Section 7.11 Efforts of Parties to Close...................................43
   Section 7.12 Expenses......................................................43
   Section 7.13 VAT Contingency Payment.......................................43
   Section 7.14 Financing for Acquisition.....................................45
   Section 7.15 Suspension and Dismissal of Actions; Releases.................45
   Section 7.16 Legal Representation Release..................................47
ARTICLE 8 CONDITIONS..........................................................48
   Section 8.1 Mutual Conditions..............................................48
   Section 8.2 Conditions to the Obligations of KCS...........................48
   Section 8.3 Conditions to the Obligations of Sellers.......................49
ARTICLE 9 TERMINATION.........................................................50
   Section 9.1 Termination....................................................50
   Section 9.2 Survival after Termination.....................................51
ARTICLE 10 INDEMNIFICATION....................................................52



   Section 10.1 Survival of Representations, Warranties and Covenants;
                Exclusive Monetary Remedies...................................52
   Section 10.2 Indemnification by Sellers....................................52
   Section 10.3 Indemnification by KCS........................................55
   Section 10.4 Procedures for Third-Party Claims.............................55
   Section 10.5 Tax Indemnification...........................................57
ARTICLE 11 DEFINITIONS........................................................58
   Section 11.1 Certain Defined Terms.........................................58
ARTICLE 12 MISCELLANEOUS......................................................66
   Section 12.1 Amendments; Waiver............................................66
   Section 12.2 Entire Agreement..............................................66
   Section 12.3 Interpretation................................................67
   Section 12.4 Severability..................................................67
   Section 12.5 Notices.......................................................67
   Section 12.6 Headings......................................................69
   Section 12.7 Binding Effect; Persons Benefiting; No Assignment.............69
   Section 12.8 No Third Party Beneficiaries..................................69
   Section 12.9 Counterparts..................................................69
   Section 12.10 Specific Enforcement.........................................69
   Section 12.11 Governing Law; Dispute Resolution............................69
   Section 12.12 Announcements................................................72
   Section 12.13 Termination Fee..............................................72




                             TABLE OF DEFINED TERMS


         TERM                               PAGE                      SECTION

Acquisition...................................1.......................Preamble
Acquisition Agreement Claims.................42........................7.15(a)
Affiliate....................................54...........................11.1
Affiliate Agreements.........................21...........................5.21
Agreement.....................................1.......................Preamble
Amended By-laws..............................30.........................7.1(a)
Amendment to the Trust Agreement.............58...........................11.1
Ancillary Agreements..........................1.......................Preamble
Applicable Law...............................54...........................11.1
Arbitration..................................43........................7.15(c)
Arbitration Costs............................66..................12.11(d)(iii)
Arbitration Demand...........................65.......................12.11(d)
Arbitrators..................................65....................12.11(d)(i)
Authority Litigation.........................58...........................11.1
Authority Litigation Agreement...............58...........................11.1
Benefit Plan.................................14.........................5.9(a)
Business Day.................................54...........................11.1
Buyer Parties................................40........................7.10(c)
Capital Reduction.............................4.........................2.1(a)
Caymex........................................1.......................Preamble
Certificate of Merger.........................4.........................3.1(a)
CFC..........................................35.........................7.4(d)
Change of Control............................54...........................11.1
Closing.......................................5............................4.1
Closing Date..................................5............................4.1
Closing Escrow................................2.........................1.1(b)
Closing Escrow Agreement......................2.........................1.1(b)
Code.........................................28...........................6.13
Commence.....................................42........................7.15(a)
Concession...................................55...........................11.1
Confidentiality Agreements...................55...........................11.1
Consultant...................................55...........................11.1
Consulting Agreement.........................55...........................11.1
Continuing Affiliate Agreements...........................................5.21
Contracts....................................55...........................11.1
Control......................................55...........................11.1
De Teresa...............................................................5.7(d)
De Teresa Agreements.........................13.........................5.7(d)
Del. G.C.L....................................4.........................3.1(a)
Designated Person............................53....................10.2(a)(ii)



Dismissals...................................56...........................11.1
Disputes.....................................64.......................12.11(a)
Dispute Notice...............................65.......................12.11(c)
Dispute Parties..............................64.......................12.11(a)
Dispute Party................................64.......................12.11(a)
Effective Time................................4.........................3.1(a)
EMVA.........................................20...........................5.17
Encumbrance..................................55...........................11.1
Environmental Laws...........................55...........................11.1
Environmental Permit.........................55...........................11.1
ERISA........................................28...........................6.13
ERISA Affiliate..............................56...........................11.1
Escrow Agent..................................5.........................4.2(a)
Exchange Act.................................56...........................11.1
Expiration Date..............................48........................10.1(a)
FIC..........................................36.........................7.4(e)
FIC Approval.................................36.........................7.4(e)
Final Tax Resolution.........................58....................10.5(e)(iv)
Final Resolution of the
   VAT Claim and Put.........................56...........................11.1
GAAP.........................................56...........................11.1
Governmental Authority.......................56...........................11.1
GTFM..........................................1.......................Preamble
GTFM Assets..................................20...........................5.19
GTFM Benefit Plan............................14.........................5.9(a)
GTFM Business................................57...........................11.1
GTFM Financial Statements....................12............................5.6
GTFM Form 20-F...............................56...........................11.1
GTFM Group...................................57...........................11.1
GTFM Insurance Policies......................19...........................5.16
GTFM Material Adverse Effect.................57...........................11.1
GTFM Shares...................................2.........................1.1(a)
GTFM Sub Note.................................4.........................2.1(b)
GTFM Subsidiaries............................57...........................11.1
GTFM Taxpayer................................57........................10.5(e)
GTFM Trademarks..............................57...........................11.1
GTFM Voting Debt..............................8............................5.2
Hazardous Materials..........................57...........................11.1
HSR Act......................................57...........................11.1
IFRS.........................................57...........................11.1
Income Taxes.................................57...........................11.1
Indemnified Party............................52........................10.4(a)
Indemnity Escrow..............................3.........................1.2(c)
Indemnity Escrow Agreement....................3.........................1.2(c)



Indemnity Escrow Notes........................2.........................1.2(a)
Intellectual Property........................57...........................11.1
Investment Advisers Act......................57...........................11.1
Investment Company Act.......................57...........................11.1
KARA Sub......................................1.......................Preamble
KCS...........................................1.......................Preamble
KCS Acquisition Proposal.....................40........................7.10(c)
KCS Assets...................................58...........................11.1
KCS Board....................................26.........................6.3(c)
KCS Business.................................58...........................11.1
KCS Disclosure Schedule......................22.........Article 6 Introduction
KCS Investment................................1.......................Preamble
KCS Financial Statements.....................26.........................6.6(a)
KCS Indemnitees..............................49........................10.2(a)
KCS Material Adverse Effect..................58...........................11.1
KCS Preferred Stock..........................26............................6.4
KCS Purchasers................................1.......................Preamble
KCS SEC Documents............................25............................6.5
KCS Stockholder Approval.....................24.........................6.3(a)
KCS Stockholder Rights Plan...............................................11.1
KCS Stock Option Plan........................58...........................11.1
KCS Sub.......................................1.......................Preamble
KCS Sub Common Stock..........................4.........................2.1(b)
KCS Sub Note..................................4.........................2.1(b)
KCS Sub Shares................................4.........................2.1(b)
KCS Voting Debt..............................25............................6.4
Knowledge....................................58...........................11.1
Law..........................................58...........................11.1
Legal Representation Release.................47...........................7.16
Losses.......................................49........................10.2(a)
Management Claims............................42........................7.15(a)
Master Trust Agreement.......................21...........................5.25
Merger........................................1.......................Preamble
Mexican Litigation List......................44........................7.15(e)
MM............................................1.......................Preamble
MM Stockholder Approval......................11.........................5.5(a)
MM Subsidiaries..............................58...........................11.1
Net Receivable Amount.........................3.........................1.3(a)
New Series Preferred Stock...................24............................6.4
NOL Value....................................41........................7.13(a)
NYSE.........................................58...........................11.1
Ongoing Litigation Matters...................13.........................5.7(d)
Option Agreement.............................21...........................5.25
Original Acquisition Agreement................1.......................Preamble



Party.........................................1.......................Preamble
Parties.......................................1.......................Preamble
Permits......................................18........................5.13(a)
Permitted Encumbrance........................58...........................11.1
Person.......................................59...........................11.1
Proceedings..................................17...........................5.12
Process Agent................................67.......................12.11(f)
Put..........................................59...........................11.1
Put Agreement................................59...........................11.1
Put Assignment Agreement.....................59...........................11.1
Put Purchase Price...........................59...........................11.1
Reconciliation...............................12............................5.6
Releases.....................................59...........................11.1
Release Resolutions..........................59...........................11.1
Scheduled Contracts..........................12.........................5.7(a)
SEC..........................................59...........................11.1
Securities...................................59...........................11.1
Securities Act...............................59...........................11.1
Securities Laws..............................59...........................11.1
Selected Tax Advisor.........................57...................10.5(e)(iii)
Seller Disclosure Schedule....................7.........Article 5 Introduction
Seller Indemnitees...........................51........................10.3(a)
Seller Material Adverse Effect...............59...........................11.1
Seller Parties...............................39........................7.10(a)
Sellers.......................................7.........Article 5 Introduction
Stock Purchase................................1.......................Preamble
Stock Purchase Price..........................2.........................1.1(a)
Straddle Period..............................38.........................7.6(a)
Subscription Agreement........................4.........................2.1(b)
Subsidiary...................................60...........................11.1
Subsidiary Approvals.........................11.........................5.5(a)
Subsidiary Investment.........................1.......................Preamble
Surviving Company.............................4.........................3.1(a)
Tax..........................................60...........................11.1
Tax Assessment...............................57.....................10.5(e)(i)
Tax Return...................................60...........................11.1
Taxing Authority.............................60...........................11.1
Termination Date.............................48.....................9.1(a)(vi)
TFM..........................................60...........................11.1
Third-Party Claim............................52........................10.4(a)
TMM...........................................1.......................Preamble
TMM Acquisition Proposal.....................39........................7.10(a)
TMM Parties..................................36......................7.4(e)(i)
TMM Stockholder Approval.....................11.........................5.5(a)



TMMH..........................................1.......................Preamble
TMMH Stockholder Approval....................11.........................5.5(a)
Transition Management Team...................31.........................7.1(c)
Transition Managers..........................31.........................7.1(c)
Trust........................................21...........................5.25
UMS...........................................1.......................Preamble
U.S..........................................60...........................11.1
VAT..........................................60...........................11.1
VAT Claim....................................60...........................11.1
VAT Contingency Payment......................41........................7.13(a)
VAT Escrow...................................42........................7.13(a)
VAT Escrow Agreement.........................42........................7.13(a)
VAT Payment..................................60...........................11.1
Volume Weighted Price........................60...........................11.1
Voting Trust.................................60...........................11.1

Exhibit A.........Seller Disclosure Schedule
Exhibit B.........KCS Disclosure Schedule
Exhibit C.........Form of Release Resolutions
Exhibit D.........Certificate of Merger
Exhibit E.........Form of Indemnity Escrow Notes
Exhibit F.........GTFM Resolutions Effecting Capital Reduction
Exhibit G.........Form of GTFM Subordinated Promissory Note
Exhibit H.........Revoked Powers of Attorney
Exhibit I.........New Powers of Attorney
Exhibit J.........Amended By-laws of GTFM and TFM
Exhibit K.........Mexican Litigation List
Exhibit L.........Legal Representation Release
Exhibit M.........Omitted
Exhibit N.........Subscription Agreement
Exhibit O.........Selected Tax Advisor
Exhibit P.........Designated Person






     AMENDED AND RESTATED ACQUISITION  AGREEMENT,  dated as of December 15, 2004
(this "Agreement"),  by and among KANSAS CITY SOUTHERN,  a Delaware  corporation
("KCS"),  KARA Sub, Inc., a Delaware corporation ("KARA Sub"), KCS Investment I,
Ltd., a Delaware  corporation ("KCS  Investment"),  KCS Acquisition  Subsidiary,
Inc.,  a Delaware  corporation  ("KCS  Sub"),  Caymex  Transportation,  Inc.,  a
Delaware corporation  ("Caymex"),  KARA Sub, KCS Investment,  KCS Sub and Caymex
being  subsidiaries of KCS, GRUPO TMM, S.A., a SOCIEDAD ANONIMA  organized under
the laws of the United  Mexican States ("UMS")  ("TMM"),  TMM HOLDINGS,  S.A. de
C.V., a SOCIEDAD ANONIMA DE CAPITAL VARIABLE organized under the laws of the UMS
and a  subsidiary  of TMM  ("TMMH"),  TMM  MULTIMODAL,  S.A. de C.V., a SOCIEDAD
ANONIMA DE  CAPITAL  VARIABLE  organized  under the laws of the UMS ("MM") and a
subsidiary of TMMH and Grupo Transportacion  Ferroviaria Mexicana, S.A. de C.V.,
a  SOCIEDAD  ANONIMA  DE CAPITAL  VARIABLE  organized  under the laws of the UMS
("GTFM")  and  a  subsidiary  of MM  (each,  a  "Party"  and  collectively,  the
"Parties").

     WHEREAS, certain of the Parties entered into an Acquisition Agreement dated
as of April 20, 2003 (the "Original Acquisition Agreement");

     WHEREAS,  disputes with respect to the Original  Acquisition  Agreement and
certain other matters have arisen  between the parties to that agreement and the
Parties desire to amend and restate the Original Acquisition  Agreement in order
to, among other  things,  facilitate  settlement  and final  resolution  of such
disputes;

     WHEREAS,  each of the  Boards of  Directors  of KCS,  TMM,  TMMH and MM has
approved and declared  advisable the  acquisition by KCS of all of MM's interest
in GTFM,  through  (i) the  purchase  by KARA Sub,  KCS  Investment  and  Caymex
(together,  the "KCS  Purchasers")  from MM of all of the capital  stock of GTFM
held by MM (the "Stock  Purchase"),  (ii) the  investment  by MM in KCS Sub (the
"Subsidiary Investment"), and (iii) the merger of KCS Sub with and into KCS (the
"Merger")  upon the  terms  and  subject  to the  conditions  of this  Agreement
(collectively, the Stock Purchase, Subsidiary Investment and the Merger comprise
the "Acquisition"); and

     WHEREAS,  certain  of the  Parties  and other  parties  are  entering  into
ancillary agreements (the "Ancillary  Agreements," identified hereinafter) and a
Consulting  Agreement to carry out certain of the  objectives of this  Agreement
and of the Acquisition.

     NOW,  THEREFORE,  in  consideration  of the  foregoing  and the  respective
representations,   warranties,  covenants  and  agreements  set  forth  in  this
Agreement  and  intending  to be legally  bound  hereby,  the  Parties  agree as
follows:



                                   ARTICLE 1

                                 STOCK PURCHASE

     SECTION 1.1 STOCK PURCHASE AND ESCROW.

     (a) Upon the terms and subject to  satisfaction or waiver of the conditions
set forth in Article 8, at the  Closing  (as  defined in Section  4.1),  the KCS
Purchasers  shall  purchase,  acquire  and  receive  from MM, and MM shall sell,
assign, transfer,  convey and deliver to the KCS Purchasers,  in the proportions
set forth  below,  all GTFM Shares held by MM,  consisting  of 25,500  shares of
Series  "A" fixed  capital  stock of GTFM and  3,842,901  shares  of Series  "A"
variable  capital  stock of GTFM  (collectively,  the  "GTFM  Shares"),  for the
consideration described in Section 1.2 (the "Stock Purchase Price").



                                Shares of GTFM         Shares of GTFM
                                Series A fixed        Series A variable
                 KCS            capital stock          capital stock
             Purchasers        to be purchased        to be purchased
             ----------        ---------------        -----------------

             KARA Sub              12,750                 1,696,201
             KCS Investment        12,750                 1,696,201
             Caymex                 -0-                     450,499
                  Total            25,500                 3,842,901

     (b)  Immediately  following  execution  of  this  Agreement  by  all of the
Parties, the GTFM Shares shall be deposited into an escrow account (the "Closing
Escrow") to be held in  accordance  with the terms and  conditions of the escrow
agreement  entered  into as of the  date of this  Agreement  by  certain  of the
Parties (the "Closing Escrow Agreement").

     SECTION 1.2 STOCK PURCHASE PRICE.

     (a) The Stock Purchase Price to be paid by the KCS Purchasers to MM for the
purchase  of the  GTFM  Shares  shall  be paid by the  delivery  of:  (i) at the
Closing,  $200 million, in immediately  available funds, by wire transfer to the
account designated by TMM by notice to the Escrow Agent (defined below),  with a
copy to KCS, at least  three (3)  business  days prior to the  Closing  Date (as
defined in Section 4.1), (ii) on that date which shall be determined as provided
in Section 7.13, the amount of any VAT  Contingency  Payment which shall then be
due under the terms and  conditions in Section  7.13,  and (iii) at the Closing,
promissory notes of KCS in the aggregate  principal amount of $47 million in the
form set forth in Exhibit E hereto (the "Indemnity Escrow Notes").

     (b)  Immediately  following  execution  of  this  Agreement  by  all of the
Parties,  on behalf of the KCS Purchasers,  KCS shall deposit $100 million,  and
within  five (5)  business  days  after  the



date of this Agreement,  KCS shall deposit the additional  $100 million,  in the
Closing  Escrow to be held in  accordance  with the terms and  conditions of the
Closing Escrow Agreement.

     (c) At the Closing, on behalf of the KCS Purchasers,  KCS shall deposit the
Indemnity Escrow Notes in another escrow account (the "Indemnity  Escrow") to be
held in accordance  with the terms and  conditions of an escrow  agreement  (the
"Indemnity Escrow  Agreement")  entered into as of the date of this Agreement by
certain of the Parties.

     SECTION 1.3 INTERCOMPANY ACCOUNT SETTLEMENT.

     (a) The Parties shall settle the net  intercompany  receivables as follows:
(A) the Parties shall calculate the amount, if any, of open accounts receivables
as of the Closing Date, or if the Closing shall not occur at the end of a month,
at the end of the month  immediately  preceding  the month in which the  Closing
occurs, (i) from TMM, TMM Logistics, S.A. de C.V. or any other Subsidiary of TMM
(other than GTFM or any of the GTFM  Subsidiaries),  on the one hand, to GTFM or
any of the GTFM  Subsidiaries,  on the other hand,  and (ii) from GTFM or any of
the GTFM Subsidiaries,  on the one hand, to TMM, TMM Logistics,  S.A. de C.V. or
any other  Subsidiary of TMM (other than GTFM or any of the GTFM  Subsidiaries),
on the other hand;  (B) the Parties shall  calculate  the absolute  value of the
difference  between the amount determined under clause (i) above, and the amount
determined under clause (ii), above (the "Net Receivable Amount");  and (C) such
Net Receivable Amount shall be paid to the Party with the greater amount of open
accounts  receivables,  within three (3) business days after the Net  Receivable
Amount is finally determined as set forth in this Section 1.3.

     (b) Each Party has the right to audit,  upon  reasonable  written notice to
another Party (or Parties,  in each case) (at the requesting  Party's  expense),
during normal business hours and at the principal office of the other Party such
other Party's records and procedures  relating to the  calculations  required by
this  Section  1.3.  Such  other  Party  shall  reasonably  cooperate  with  the
requesting Party during any such audit.

     (c) Any Party may dispute another Party's computation of the Net Receivable
Amount by notice to the other Party within five (5) business days of the receipt
of the  other  Party's  computation.  In the  event  that any Party (i) fails to
provide any  computation of the Net  Receivable  Amount within five (5) business
days of a written request  therefor or (ii) having been furnished with the other
Party's computation,  fails to provide a notice of dispute within the period set
forth above,  the Party failing to provide the computation or failing to provide
such notice of dispute  shall be deemed to have accepted and may not dispute the
other Party's computation for purposes of this Agreement. In the event that both
Parties  provide a notice of dispute,  the Parties'  respective  representatives
shall meet as promptly as practicable to attempt to agree on the  computation of
the Net Receivable  Amount. If the Parties are unable to agree within forty-five
(45) days  following  such  meeting  on the  computation  of the Net  Receivable
Amount, then the computation of the Net Receivable Amount shall be determined by
arbitration as set forth in Section 12.11 (provided,  that if the Parties agree,
they may appoint a single arbitrator for purposes of this Section 1.3).



                                   ARTICLE 2

                    CAPITAL REDUCTION; SUBSIDIARY INVESTMENT

     SECTION 2.1 GTFM CAPITAL REDUCTION; SUBSIDIARY INVESTMENT.

     (a) GTFM  shall,  effective  at the  Closing  Date,  adopt the  resolutions
attached as Exhibit F to effect,  immediately  prior to the Stock Purchase,  the
capital  reduction  (the  "Capital  Reduction")  under  the Laws of the UMS,  as
specified in such resolutions.

     (b) At the Closing, (i) MM shall exchange the Subordinated  Promissory Note
of GTFM,  received pursuant to the Capital Reduction in the form attached hereto
as Exhibit G (the "GTFM Sub Note") for a subordinated promissory note of KCS Sub
in the principal  amount equal to the principal amount of the GTFM Sub Note (the
"KCS Sub  Note"),  (ii) MM shall  subscribe  for and  purchase  from KCS Sub 100
shares (the "KCS Sub Shares") of KCS Sub common stock,  $.01 par value per share
("KCS Sub Common Stock"),  representing 10% of the issued and outstanding shares
of KCS Sub Common Stock pursuant to the terms and conditions of the Subscription
Agreement  in  the  form  attached  hereto  as  Exhibit  N  (the   "Subscription
Agreement"),  (iii) KCS Sub shall  issue,  sell and  transfer  to MM the KCS Sub
Shares in  consideration  for delivery by MM to KCS Sub of the KCS Sub Note (the
transactions  described  in (i)  through  (iii)  collectively,  the  "Subsidiary
Investment"),  and (iv) the GTFM Sub Note shall be  delivered  to GTFM by KCS or
Subsidiaries  of  KCS in  exchange  for  equity  of  GTFM  as  specified  in the
resolutions attached hereto as Exhibit F.

     (c)  Simultaneously  with the execution of this  Agreement,  MM and KCS Sub
shall enter into the  Subscription  Agreement for the purchase at the Closing by
MM of the KCS Sub Shares. Immediately following execution of this Agreement, the
Subscription  Agreement,  the KCS Sub Shares,  the GTFM Sub Note and the KCS Sub
Note shall be deposited in the Closing Escrow, to be held in accordance with the
terms and conditions of the Closing Escrow Agreement.

                                   ARTICLE 3

                                   THE MERGER

     SECTION 3.1 THE MERGER.

     (a)  Immediately  following  the  Subsidiary  Investment,  KCS Sub shall be
merged with and into KCS in accordance  with the General  Corporation Law of the
State of Delaware ("Del.  G.C.L."). KCS and KCS Sub shall cause the Merger to be
consummated  by causing the Escrow Agent to file a certificate  of merger in the
form  attached  hereto  as  Exhibit D (the  "Certificate  of  Merger")  with the
Secretary of State of the State of  Delaware,  executed in  accordance  with the
relevant  provisions of the Del. G.C.L.  (the date and time of the filing of the
Certificate of Merger being the "Effective  Time").  At the Effective  Time, the
effects of the Merger shall be as provided in the  Certificate of Merger and the
applicable provisions of the Del. G.C.L. As a result of the Merger, the separate
corporate  existence  of KCS Sub  shall  cease  and KCS  shall  continue  as the
surviving corporation of the Merger (the "Surviving Company").

     (b)  Immediately  following  execution  of  this  Agreement  by  all of the
Parties,  (i) KCS and KCS Sub shall  deposit in the  Closing  Escrow the form of
Certificate  of Merger to be executed in accordance  with the Del.  G.C.L.,  and
(ii) KCS shall  deposit in the Closing  Escrow the shares of KCS Common Stock to
be received by MM in the Merger, as provided in Section 4.3.

                                    ARTICLE 4

                                     CLOSING

     SECTION  4.1  CLOSING.  Unless  this  Agreement  shall  have  been  earlier
terminated  in  accordance  with  the  terms  hereof,  the  consummation  of the
transactions  contemplated by this Agreement (the "Closing")  shall,  subject to
the  satisfaction or waiver of the conditions set forth in Article 8, take place
at the  offices  of  Sonnenschein  Nath &  Rosenthal  LLP,  1221  Avenue  of the
Americas, 24th Floor, New York, New York, on the second (2nd) Business Day after
all of the  conditions  set forth in  Article 8 have  been  satisfied  or waived
(other than the conditions that relate to actions to be taken at the Closing) or
at such  other  date,  time and  place as KCS and TMM  shall  mutually  agree in
writing (the date on which the Closing  takes place,  the "Closing  Date").  The
closing of the  Acquisition  is dependent  upon the closing of each of the Stock
Purchase,  the Subsidiary  Investment and the Merger and if any one of the Stock
Purchase,  the  Subsidiary  Investment  or the Merger shall not occur,  then the
Acquisition  shall  not  close  and  all  shares,   consideration,   agreements,
instruments  and other items  shall be released  from or retained in the Closing
Escrow as provided for in the Closing Escrow Agreement or as otherwise agreed in
writing by the Parties.

     SECTION 4.2 ACTIONS AT CLOSING. At the Closing:

     (a) Pursuant to the Closing Escrow  Agreement,  the escrow agent  appointed
pursuant to the Closing Escrow  Agreement (the "Escrow Agent") shall (i) deliver
to MM the  Stock  Purchase  Price,  on behalf  of the KCS  Purchasers,  and (ii)
deliver to the KCS Purchasers,  on behalf of MM, the stock  certificates for the
GTFM Shares, duly endorsed and in proper form to transfer to the KCS Purchasers,
as their interests  appear in Section 1.1(a),  ownership of such shares free and
clear of any and all Encumbrances.

     (b)  Pursuant  to the Closing  Escrow  Agreement,  the Escrow  Agent (i) on
behalf of MM,  shall  deliver to KCS Sub the GTFM Sub Note,  duly  endorsed  for
transfer to KCS Sub free and clear of any and all  Encumbrances,  (ii) on behalf
of KCS Sub,  shall deliver to MM the KCS Sub Note,  (iii) on behalf of MM, shall
deliver to KCS Sub the KCS Sub Note,  duly endorsed for transfer to KCS Sub free
and clear of any and all  Encumbrances,  and (iv) on  behalf  of KCS Sub,  shall
issue and deliver to MM the KCS Sub Shares.

     (c) [Omitted]



     (d)  Pursuant  to the  Closing  Escrow  Agreement,  the Escrow  Agent shall
deliver  the  Certificate  of Merger to KCS for  execution  and filing  with the
Secretary of State of Delaware to effect the Merger,  and at the Effective  Time
shall deliver to MM the shares of KCS Common Stock to which MM shall have become
entitled pursuant to Section 4.3.

     (e) The Indemnity Escrow Notes shall be deposited into the Indemnity Escrow
to be  held  pursuant  to the  terms  and  conditions  of the  Indemnity  Escrow
Agreement.

     (f) The Parties  shall  deliver and receive,  respectively,  the  officers'
certificates referred to in Section 8.2(c) and 8.3(c).

     (g) To the extent in the  possession of, or available to, TMM or MM, or any
of their respective Subsidiaries,  Affiliates, directors, officers, employees or
representatives,  TMM and MM shall,  and TMM shall cause MM to,  deliver to GTFM
all files and books of account,  including business,  financial and tax records,
of GTFM,  including minute books,  stock record books, the agreement relating to
the  Concession and supporting  exhibits and records  relating  thereto and work
papers.  In addition,  each Party shall  deliver to the other Parties such other
documents,  resolutions,  appointments,  powers of attorney and  instruments  of
transfer  necessary or  appropriate  to implement  this Agreement and effect the
transactions  contemplated hereby and by the Ancillary Agreements,  in each case
as may be reasonably requested and in form and substance  reasonably  acceptable
to the requesting Party.

     (h) The  Secretary  of GTFM shall make the  corresponding  notation  in the
Stock Registry Book of GTFM  evidencing the KCS  Purchasers,  as their interests
appear in Section 1.1(a), as the record, legal and beneficial owners of the GTFM
Shares as of the Closing Date.

     (i) All other instruments,  agreements and items held in the Closing Escrow
(including the Releases, the Release Resolutions and the documents necessary for
the  Dismissals)  shall be delivered  to the party  entitled to receive the same
pursuant to the terms of the Closing  Escrow  Agreement and TMM shall deliver to
KCS the Legal Representation Release.

     (j) Sellers shall deliver a copy of resolutions which Sellers and KCS shall
have caused to be adopted by the  shareholders of GTFM and TFM,  effective as of
the Closing,  (i)  accepting  the  resignations  of the  representatives  of TMM
serving on such boards of directors,  (ii) approving the financial statements of
GTFM and TFM for the year ended  December 31, 2003,  (iii) waiving all rights of
first  refusal  to, and  approving,  the  transfer of the GTFM Shares to the KCS
Purchasers, and (iv) electing new directors of GTFM and of TFM.

     (k) Each action  taken at the  Closing  pursuant  to this  Agreement  shall
depend on the  occurrence  of all  actions  required  to be taken at the Closing
pursuant to this Agreement and no action or  transaction  will be deemed to have
taken place,  or document  delivered,  or payment  made,  unless all actions and
transactions  have been  completed  and all  documents  have been  executed  and
delivered;  PROVIDED,  that any agreements that, in accordance with their terms,
are to become  effective  prior to the Closing  Date,  shall be effective to the
extent provided therein.



Each Party shall take all action necessary to cause the Escrow Agent to take all
action  required  under the Closing  Escrow  Agreement to be taken by the Escrow
Agent on such Party's behalf.

     SECTION 4.3 CONVERSION OF SECURITIES.  At the Effective  Time, by virtue of
the Merger and without any other action on the part of any Party:

     (a) the KCS Sub  Shares  shall  be  converted  into  and  exchanged  for an
aggregate of 18,000,000 shares of KCS Common Stock;

     (b) the shares of KCS Sub Common Stock issued and  outstanding  immediately
prior to the Effective Time, other than the KCS Sub Shares, shall be cancelled;

     (c) each share of KCS Common  Stock,  KCS  Preferred  Stock (as  defined in
Section 6.4) and New Series Preferred Stock (as defined in Section 6.4),  issued
and outstanding  immediately prior to the Effective Time shall remain issued and
outstanding as one share of KCS Common Stock, KCS Preferred Stock and New Series
Preferred Stock, respectively, of the Surviving Company;

     (d) each share of KCS Common  Stock and each share of KCS  Preferred  Stock
and New Series  Preferred  Stock that is owned by KCS  immediately  prior to the
Effective  Time as treasury stock shall remain as one share of treasury stock of
the Surviving Company; and

     (e) each  option  to  acquire  KCS  Common  Stock  issued  and  outstanding
immediately  prior to the  Effective  Time shall be  adjusted  as  necessary  to
provide that, at the  Effective  Time,  such option shall be deemed an option to
acquire,  on the same terms and conditions as were applicable under such option,
the  number  of shares of Common  Stock of the  Surviving  Company  equal to the
number of shares of KCS Common Stock subject to such option.

                                   ARTICLE 5

                    REPRESENTATIONS AND WARRANTIES OF SELLERS

     Except  as set  forth  under  the  applicable  sections  in the  disclosure
schedule  attached  as  Exhibit  A to this  Agreement  (the  "Seller  Disclosure
Schedule"), TMM, TMMH and MM ("Sellers"),  jointly and severally,  represent and
warrant to KCS as set forth below. With respect to each such representation,  it
shall be deemed qualified by matters set forth on the Seller Disclosure Schedule
under the corresponding section number, whether or not the representation or any
portion  thereof refers to the Seller  Disclosure  Schedule by use of the phrase
"except  as set forth in the  Seller  Disclosure  Schedule"  or words of similar
import.

     SECTION 5.1 ORGANIZATION AND RELATED MATTERS.

     (a) TMM is a SOCIEDAD  ANONIMA,  duly formed and validly existing under the
laws of the UMS. TMM has the corporate power and authority necessary to carry on
its business in the manner as it is now being  conducted  and to own,  lease and
operate all of its properties and assets.



The copy of TMM's Corporate Charter and Bylaws  previously  provided to KCS is a
complete  and correct copy of such  instrument  as in effect on the date hereof.
Sellers have provided KCS with an English translation of such documents.

     (b) TMMH is a SOCIEDAD ANONIMA DE CAPITAL VARIABLE, duly formed and validly
existing  under the laws of the UMS. TMMH has the corporate  power and authority
necessary to carry on its business in the manner it is now being  conducted  and
to own, lease and operate all of its properties and assets. TMMH is a subsidiary
of TMM,  which  owns all of the issued and  outstanding  capital  stock of TMMH,
except as set forth in Section 5.1 of the Seller Disclosure Schedule.

     (c) MM is a SOCIEDAD ANONIMA DE CAPITAL  VARIABLE,  duly formed and validly
existing  under the laws of the UMS. MM has the  corporate  power and  authority
necessary  to carry on its  respective  business  in the  manner it is now being
conducted and to own, lease and operate all of its properties and assets.  MM is
a subsidiary of TMMH, which owns all of the issued and outstanding capital stock
of MM, except as set forth in Section 5.1 of the Seller Disclosure Schedule.

     (d) GTFM is a SOCIEDAD ANONIMA DE CAPITAL VARIABLE, duly formed and validly
existing  under  the laws of the UMS,  and  each of the GTFM  Subsidiaries  is a
SOCIEDAD  ANONIMA DE CAPITAL  VARIABLE or other  business  entity  duly  formed,
validly  existing and in good  standing  under the laws of the UMS. GTFM has the
corporate  power and authority  necessary to carry on its business in the manner
it is now being  conducted and to own,  lease and operate all of its  properties
and assets.

     (e) Each of TMM, TMMH, MM, GTFM and the GTFM  Subsidiaries is duly licensed
or  qualified  to do  business in each  jurisdiction  in which the nature of the
business  conducted  by it or the  character or location of the  properties  and
assets  owned,  leased or operated by it makes such  qualification  or licensing
necessary,  except in  jurisdictions  where the  failure  to be so  licensed  or
qualified  would  not  individually  or in the  aggregate  have a GTFM  Material
Adverse Effect.

     (f) The copies of the  Corporate  Charter  and Bylaws of each of TMMH,  MM,
GTFM, and of each of the GTFM Subsidiaries, delivered to KCS by TMM prior to the
execution of this Agreement are complete and correct copies of such  instruments
as in effect  immediately  prior to the execution of this  Agreement and Sellers
have provided KCS with English translations of such documents.

     (g) The powers of attorney identified in Exhibit H hereto have been revoked
and  replaced  with new  powers of  attorney,  identified  in  Exhibit I hereto,
effective as of the date of this Agreement.

     SECTION 5.2 AUTHORIZED CAPITALIZATION. The authorized capital stock of GTFM
consists  of (i) 25,500  shares of Series  "A" fixed  capital,  of which  25,500
shares are held by MM, (ii) 3,842,901 shares of Series "A" variable capital,  of
which 3,842,901 shares are held by MM, (iii)



24,500  shares of Series "B" fixed  capital,  of which 24,500 shares are held by
NAFTA Rail, S.A. de C.V., (iv) 3,692,199 shares of Series "B" variable  capital,
of which  3,692,199  shares  are  held by  NAFTA  Rail,  S.A.  de C.V.,  and (v)
2,478,470 shares of Series "L-2" variable  capital,  of which 2,478,470 are held
by TFM.  There are no other shares of capital  stock of GTFM or other  ownership
interests in GTFM  issued,  reserved  for  issuance or  outstanding.  All of the
shares of capital stock of GTFM outstanding are duly authorized, validly issued,
fully paid and  nonassessable  and,  except as set forth in  Section  5.2 of the
Seller Disclosure Schedule, free of any preemptive rights and are not subject to
any voting trust agreement (or similar agreement), or other Contract restricting
or otherwise  relating to the voting,  dividend  rights or  disposition  of such
shares to which GTFM or any of the Sellers is a party or by which GTFM or any of
the  Sellers  is  bound.  Except  as set  forth  in  Section  5.2 of the  Seller
Disclosure  Schedule,  there is no outstanding option,  warrant,  convertible or
exchangeable  security,  right,  subscription,  call,  right of  first  refusal,
legally binding commitment,  preemptive right or other agreement or right of any
kind to which GTFM or the Sellers are a party or are otherwise  bound  entitling
any  Person  to  purchase  or  otherwise  acquire   (including  by  exchange  or
conversion)  from GTFM or any GTFM  Subsidiary  any shares of  capital  stock of
GTFM.  Except  as set  forth in the Put  Agreement  (which  is  currently  being
contested  pursuant  to pending  legal  proceedings),  there are no  outstanding
obligations  of  GTFM  or any of  its  Subsidiaries  to  redeem,  repurchase  or
otherwise  acquire  any of the shares of capital  stock of GTFM or any shares of
capital stock (or other ownership interests) of any of its Subsidiaries. Neither
GTFM nor any GTFM  Subsidiary has outstanding  any bonds,  debentures,  notes or
other  indebtedness  generally having the right to vote (or convertible into, or
exchangeable  for,  Securities having the right to vote) on any matters on which
holders of shares of capital  stock of GTFM may  consent or vote  ("GTFM  Voting
Debt").  There are no options,  warrants,  rights,  convertible or  exchangeable
Securities, "phantom" interests or other ownership interest appreciation rights,
commitments,  Contracts,  arrangements or undertakings of any kind to which GTFM
or any of the GTFM  Subsidiaries is a party or by which any of them is bound (i)
obligating  GTFM or any of the GTFM  Subsidiaries  or any other Person to issue,
deliver  or  sell,  or cause  to be  issued,  delivered  or  sold,  existing  or
additional  shares of capital stock of GTFM or capital stock (or other ownership
interests)  of  any  GTFM  Subsidiary,  or  any  security  convertible  into  or
exercisable  or  exchangeable  for any of the foregoing or for GTFM Voting Debt,
(ii) obligating GTFM or any GTFM Subsidiary or any other Person to issue, grant,
extend or enter into any such option, warrant, call, right, security commitment,
Contract,  arrangement or  undertaking,  (iii) that give any Person the right to
receive any  economic  benefit or right  similar to or derived from the economic
benefits and rights  accruing to holders of the shares of capital  stock of GTFM
or capital stock (or other ownership interests) of any GTFM Subsidiary,  or (iv)
that  give  rise to a  right  to  receive  any  payment  from  GTFM or any  GTFM
Subsidiary  upon the  execution  of this  Agreement or the  consummation  of the
Merger or any of the other transactions contemplated hereby, except as set forth
in  Section  5.2  of  the  Seller  Disclosure   Schedule.   Notwithstanding  the
disclosures  set forth in  Section  5.2 of the  Seller  Disclosure  Schedule  or
otherwise,  the shares of GTFM to be acquired by the KCS  Purchasers  and by KCS
Sub pursuant to this  Agreement  shall be acquired by the KCS Purchasers and KCS
Sub free and clear of any and all Encumbrances,  except for any Encumbrances (y)
created by the KCS  Purchasers  or their  Affiliates  or (z) by operation of law
which does not involve a breach by TMM or any Affiliate of any provision of this
Agreement.



     SECTION 5.3 GTFM AND GTFM SUBSIDIARIES.

     (a)  Section  5.3  of  the  Seller  Disclosure  Schedule  lists  each  GTFM
Subsidiary  and  its  jurisdiction  of  incorporation  or  organization  and the
outstanding  shares of capital stock and other ownership  interests,  if any, of
the GTFM  Subsidiaries,  and the record owner  thereof.  All of the  outstanding
shares of  capital  stock of, or other  equity  interests  in,  each of the GTFM
Subsidiaries  have been validly issued and are fully paid and  nonassessable and
such shares or interests are owned directly or indirectly by GTFM free and clear
of all  Encumbrances  and free of any  restriction on the right to vote, sell or
otherwise dispose of such capital stock or other ownership interests,  except as
set forth in  Section  5.3 of the  Seller  Disclosure  Schedule.  Except for the
capital stock or other ownership interests of the GTFM Subsidiaries as set forth
in Section 5.3 of the Seller Disclosure Schedule, GTFM does not beneficially own
directly or  indirectly  any capital  stock,  membership  interest,  partnership
interest, joint venture interest or other equity interest in any Person.

     (b) Neither GTFM nor any of the GTFM Subsidiaries  engage in or conduct any
business  other  than as set  forth in the GTFM  Form  20-F,  or as set forth in
Section 5.3 of the Seller Disclosure Schedule.  Neither GTFM nor any of the GTFM
Subsidiaries  has  taken  any  action  or  commenced  or  threatened  any  legal
proceeding  for the  administration,  winding-up  or  provisional  winding-up or
dissolution of GTFM or any of the GTFM Subsidiaries or seeking to enter into any
arrangement or composition for the benefit of creditors,  or for the appointment
of a  receiver,  administrator,  administrative  receiver,  trustee  or  similar
officer of any of the  properties,  revenues,  undertakings or assets of GTFM or
any of the  GTFM  Subsidiaries,  nor have any  orders  been  made for any of the
foregoing.

     SECTION 5.4 AUTHORITY; NO VIOLATION.

     (a) TMM, TMMH, MM and GTFM each has full  corporate  power and authority to
execute and deliver this Agreement and the Ancillary Agreements to which it is a
party, to perform its obligations hereunder and thereunder and to consummate the
transactions contemplated hereby and thereby. The execution and delivery of this
Agreement and the Ancillary  Agreements to which any of TMM, TMMH, MM or GTFM is
a party and the consummation of the transactions contemplated hereby and thereby
have  been  duly  and  validly  authorized  by all  requisite  action  on  their
respective  parts, and no other corporate action on the part of TMM, TMMH, MM or
GTFM,  as the case  may be,  is  necessary  to  approve  this  Agreement  or the
Ancillary  Agreements to which it is a party or to authorize or  consummate  the
transactions  contemplated  hereby or  thereby,  other than  approvals  from the
shareholders of TMM, TMMH and MM, to be obtained as provided in Section 5.5. TMM
has  received the opinion of JP Morgan  Securities,  Inc. to the effect that the
consideration  to be received in the  Acquisition is fair from a financial point
of view to TMM. This  Agreement  and the  Ancillary  Agreements to which it is a
party have been duly and validly  executed and  delivered by TMM,  TMMH,  MM and
GTFM (except for those Ancillary  Agreements that are not dated the date hereof,
which  Ancillary  Agreements  shall be duly and validly  executed and  delivered
prior  to the



Closing) and  (assuming  the due  authorization,  execution and delivery of this
Agreement and the Ancillary  Agreements by the other Parties hereto and thereto)
constitute  valid and binding  obligations of TMM, TMMH, MM and GTFM (except for
those Ancillary Agreements that are not dated the date hereof or, by their terms
are  not  effective  at  the  date  hereof,  which  Ancillary  Agreements  shall
constitute  valid  and  binding  obligations  of TMM,  TMMH,  MM and GTFM at the
Closing or the effective date thereof, as the case may be),  enforceable against
TMM,  TMMH,  MM and GTFM in  accordance  with  their  terms,  except  as (i) the
enforceability  thereof may be subject to or limited by bankruptcy,  insolvency,
reorganization,  moratorium  or similar laws relating to or affecting the rights
of creditors  generally and the  availability  of equitable  relief  (whether in
proceedings  at law or in  equity),  and (ii) rights to  indemnification  may be
limited by the Securities Laws and the policies underlying such laws.

     (b) Neither the execution  and delivery of this  Agreement or the Ancillary
Agreements to which it is a party by TMM, TMMH, MM or GTFM nor the  consummation
by TMM,  TMMH,  MM or GTFM of any of the  transactions  contemplated  hereby  or
thereby to be performed by them,  nor  compliance by TMM,  TMMH, MM or GTFM with
any of the terms or provisions hereof or thereof, will (i) violate any provision
of the  Charter  or  Bylaws  of TMM,  TMMH or MM or the  Charter  or  Bylaws  or
comparable  organizational  documents  of GTFM or any GTFM  Subsidiary,  or (ii)
assuming  that the  consents and  approvals  referred to in Section 5.5 are duly
obtained,  (x) violate,  conflict with or require any notice,  filing,  consent,
waiver or approval  under any Applicable Law to which TMM, TMMH, MM, GTFM or the
GTFM Subsidiaries or any of their respective properties, Contracts or assets are
subject,  or (y) violate,  conflict with, result in a breach of any provision of
or the loss of any benefit under,  constitute a default (or an event which, with
or without notice or lapse of time, or both,  would constitute a default) under,
result in the  termination of or a right of termination or  cancellation  under,
accelerate or result in a right of acceleration of the performance  required by,
result in the  creation of any  liability  under,  result in the creation of any
Encumbrance other than any Permitted Encumbrance upon the properties,  Contracts
or assets of TMM, TMMH, MM, GTFM or the GTFM Subsidiaries  under, or require any
notice, approval, waiver or consent under, any note, bond, mortgage,  indenture,
deed of trust,  license,  lease,  agreement or other instrument or obligation to
which TMM,  TMMH,  MM, GTFM or any of the GTFM  Subsidiaries  is a party,  or by
which  TMM,  TMMH,  MM,  GTFM or any of the  GTFM  Subsidiaries  or any of their
properties  or  assets  may be bound or  affected,  except,  in the case of this
clause (ii), would not have or be reasonably  expected to have,  individually or
in the aggregate,  a GTFM Material Adverse Effect or result in an Encumbrance on
the GTFM Shares.

     SECTION 5.5 CONSENTS AND APPROVALS.

     (a) The  affirmative  vote of the holders of a majority of the  outstanding
shares of Series A Shares of TMM (the "TMM Stockholder  Approval"),  is the only
vote of the holders of any Security of TMM  necessary to approve this  Agreement
and the other  transactions  contemplated  by this  Agreement  and the Ancillary
Agreements.  Holders of more than a majority of the outstanding shares of Series
A Shares of TMM have (i) entered into the Voting Trust with respect to 7,841,343
Series A Shares of TMM pursuant to which they have transferred such shares to an
irrevocable  trust for the  purpose of  assuring  that such  shares are voted in
favor of the



TMM  Stockholder  Approval,  and (ii)  entered  into the  Amendment to the Trust
Agreement,  with respect to 574,150 Series A Shares of TMM pursuant to which the
settlors have irrevocably  instructed,  and the trustee under such agreement has
irrevocably agreed, to vote the shares in favor of the TMM Stockholder Approval.
The affirmative vote of the shares subject to the Voting Trust and the Amendment
to the Trust  Agreement,  when it occurs,  will be sufficient to constitute  TMM
Stockholder Approval.  The Voting Trust and Amendment to the Trust Agreement are
valid  and  binding  obligations  of the  signatories  thereto,  enforceable  in
accordance with their terms.  The affirmative  vote of the holders of a majority
of the  outstanding  shares  of  capital  stock of TMMH (the  "TMMH  Stockholder
Approval") is the only vote of the holders of any Security of TMMH  necessary to
approve this Agreement and the other transactions contemplated by this Agreement
and the  Ancillary  Agreements  and the  affirmative  vote of the  holders  of a
majority of the  outstanding  shares of capital stock of MM (the "MM Stockholder
Approval")  is the only vote of the holders of any  Security of MM  necessary to
approve this Agreement and the other transactions contemplated by this Agreement
and the Ancillary Agreements  (collectively,  the "Subsidiary Approvals").  As a
part of the TMM Stockholder Approval, TMM, as holder owning all (but one) of the
shares of TMMH entitled to vote,  will be irrevocably  instructed to irrevocably
vote all such shares in favor of the TMMH Stockholder Approval. As a part of the
TMMH Stockholder Approval,  TMMH, as holder of more than 91% of the shares of MM
entitled to vote, will be irrevocably instructed to irrevocably vote such shares
in favor of the MM Stockholder Approval.

     (b) Except (i) as set forth in Section 5.5(a), in Section 5.5 of the Seller
Disclosure Schedule or in the Ancillary  Agreements,  (ii) the prior approval of
the Mexican  Foreign  Investments  Commission,  (iii)  clearance  by the Mexican
Antitrust Commission,  (iv) notice to the Mexican Ministry of Communications and
Transportation, (v) compliance with and filings under the Securities Laws as may
be required in connection  with this Agreement and the Ancillary  Agreements and
the transactions contemplated hereby and thereby, (vi) any required filings with
the NYSE,  (vii)  the  filing of the  Certificate  of  Merger,  and  (viii)  the
expiration or earlier  termination  of the waiting  period under the HSR Act, no
consents or approvals of, or filings,  declarations  or  registrations  with any
Governmental Authority, any third party or any other Person are necessary on the
part of the Sellers in connection with the execution and delivery by each Seller
of this  Agreement or the  Ancillary  Agreements  to which it is a party and the
consummation  by the  Sellers  of the  Acquisition  and the  other  transactions
contemplated  by this  Agreement  and the Ancillary  Agreements  other than such
consents,  approvals,  filings,  declarations  or  registrations  which  if  not
obtained  would not  reasonably be expected to delay  materially  the Closing or
have a GTFM  Material  Adverse  Effect.  To the best of Sellers'  Knowledge,  no
control  share,  anti-takeover  or similar  statute under the Laws of the UMS is
applicable  to  the  transactions   contemplated  hereby  or  by  the  Ancillary
Agreements.

     SECTION 5.6 FINANCIAL STATEMENTS;  UNDISCLOSED  LIABILITIES.  Except as set
forth in Section  5.6 or Section  5.11 of the Seller  Disclosure  Schedule,  the
audited   consolidated   financial  statements  of  GTFM  and  its  consolidated
Subsidiaries and the audited  consolidated  financial  statements of TFM and its
consolidated  subsidiaries  for the period ended  December 31, 2003,  previously
provided  to KCS  (the  "GTFM  Financial  Statements")  present  fairly,  in all
material respects, in conformity with IFRS applied on a consistent basis (except
as may be indicated in the notes thereto),  the consolidated  financial position
of GTFM and its  consolidated  Subsidiaries  as of the dates  thereof  and their
consolidated  results of  operations  and cash flows for the periods then ended.
The  reconciliation  ("Reconciliation")  to U.S.  GAAP  from  IFRS  of the  GTFM
Financial  Statements  prepared by  PriceWaterhouseCoopers,  provided by GTFM to
KCS,  fairly  presents in all  material  respects all  adjustments  necessary to
reflect the  presentation  of such  financial  statements  on a U.S. GAAP basis.
Except as set forth in the GTFM  Financial  Statements,  neither GTFM nor any of
its  Subsidiaries  has any  liabilities or  obligations  of any nature  (whether
accrued, absolute,  contingent or otherwise) required by IFRS to be set forth on
a consolidated  balance sheet of GTFM and the consolidated  GTFM Subsidiaries or
in  the  notes  thereto  or  which,  individually  or in  the  aggregate,  could
reasonably be expected to have a GTFM Material Adverse Effect.


     SECTION 5.7 CONTRACTS.

     (a) Section 5.7 of the Seller Disclosure Schedule sets forth a complete and
accurate  list  or  description,  as of  the  date  of  this  Agreement,  of all
Contracts:  (i) pursuant to which GTFM or any of the GTFM Subsidiaries is either
obligated  to pay or  entitled  to receive in excess of $10  million in any year
(that is not otherwise  required to be disclosed  pursuant to this Section 5.7),
(ii) that are employment,  management,  consulting or severance  agreements with
any  officer or  director  of GTFM or any of the GTFM  Subsidiaries,  (iii) that
include any noncompetition or nonsolicitation  covenant or any exclusive dealing
or  similar  arrangement  that  limits  the  ability  of GTFM or any of the GTFM
Subsidiaries to compete (geographically or otherwise) in any line of business or
which would so limit the Surviving Company or any of its Subsidiaries  after the
Effective  Time,  (iv)  that  are  trackage  rights  agreements,   interline  or
interchange   agreements   with  other   railroads,   or  (v)  that   constitute
nondisclosure agreements or confidentiality agreements which could reasonably be
expected to have a significant effect on the conduct of the GTFM Business or the
business of the Surviving Company ((i) through (v) collectively,  the "Scheduled
Contracts").

     (b) As of the date of this Agreement,  each of the Scheduled Contracts is a
legal, valid and binding  obligation of GTFM or the GTFM Subsidiaries  (assuming
the due authorization,  execution and delivery by the other Parties thereto) and
is in full force and effect and enforceable in accordance with its terms, except
as such enforceability may be limited by bankruptcy, insolvency, reorganization,
moratorium and similar Laws relating to or affecting  creditors generally and by
the  availability  of equitable  remedies  (whether in  proceedings at law or in
equity).

     (c) As of the  date of this  Agreement,  neither  GTFM  nor any of the GTFM
Subsidiaries  has received  notice of cancellation of or default under or intent
to cancel  or call a default  under  any of the  Scheduled  Contracts.  Assuming
receipt of the consents and  approvals  set forth in Section 5.5, to the best of
the Sellers'  Knowledge,  nothing has occurred  which with or without



notice  or lapse of time or both  would  constitute  a  material  breach of or a
material default under any of the Scheduled Contracts.

     (d) On  and  after  the  Closing  Date,  GTFM,  TFM  and  their  respective
Subsidiaries  shall have no liability or obligation under or with respect to any
agreement or arrangement with Jose Joaquin de Teresa y Polignac ("De Teresa") or
any of its affiliates  (the "De Teresa  Agreements")  other than pursuant to the
ongoing  litigation  matters  identified in Section 5.7 of the Seller Disclosure
Schedule (the "Ongoing Litigation Matters"). Since May 17, 2004 through the date
of this  Agreement,  (i) no amount  has been paid by or on behalf of GTFM or any
GTFM Subsidiary to De Teresa other than for Ongoing Litigation Matters, and (ii)
the amounts paid or payable for the Ongoing Litigation Matters have not exceeded
the amount set forth in Section 5.7(d) of the Seller Disclosure Schedule.

     SECTION 5.8 INTELLECTUAL PROPERTY RIGHTS.

     (a) With respect to all  Intellectual  Property  used in the conduct of the
GTFM  Business,  GTFM or a GTFM  Subsidiary  either  has all  right,  title  and
interest in or valid and binding rights under Contract to use such  Intellectual
Property,  except where the failure to have such rights would not  reasonably be
expected to have a GTFM Material Adverse Effect.  Except as disclosed in Section
5.8 of the Seller Disclosure  Schedule or as would not reasonably be expected to
have a GTFM Material Adverse Effect, (i) all registrations with and applications
to Governmental Authorities in respect of Intellectual Property owned by GTFM or
any GTFM  Subsidiary  are valid and in full force and effect,  (ii) there are no
material restrictions on the direct or indirect transfer of any Contract, or any
interest  therein,  held by GTFM  or any  GTFM  Subsidiary  in  respect  of such
Intellectual  Property,  (iii) to the Knowledge of the Sellers  neither GTFM nor
any GTFM Subsidiary is in default (or with the giving of notice or lapse of time
or both,  would be in default) in any material respect under any Contract to use
such  Intellectual  Property,  and (iv) to the  Knowledge of the  Sellers,  such
Intellectual  Property  owned  by  GTFM  or any  GTFM  Subsidiary  is not  being
infringed by any other Person. Neither GTFM nor any GTFM Subsidiary has received
notice that GTFM or any GTFM  Subsidiary is  infringing in any material  respect
any Intellectual  Property of any other Person, to the Knowledge of Sellers,  no
claim is pending or has been made to such effect that has not been resolved and,
to the  Knowledge  of the  Sellers,  neither  GTFM  nor any GTFM  Subsidiary  is
infringing  any  Intellectual  Property of any other Person the effect of which,
individually  or in the aggregate,  could  reasonably be expected to have a GTFM
Material Adverse Effect. GTFM owns and will own at the Closing, all right, title
and interest in and to that certain  trademark of mixed type registered with the
Mexican  Institute  of  Industrial  Property  under number  53951,  class 37, in
connection with the name "TFM" and its design.

     SECTION 5.9 EMPLOYEE BENEFIT MATTERS.

     (a) Section  5.9 of the Seller  Disclosure  Schedule  sets forth a true and
complete  list  of each  material  pension  plan,  deferred  compensation  plan,
retirement  income plan,  stock option or stock  purchase  plan,  profit sharing
plan, bonus plan or policy, employee group insurance plan, hospitalization plan,
disability  plan or other employee  benefit plan,  program,  policy or practice,



formal or  informal,  funded or  unfunded,  to any  current or former  director,
officer or employee (or to any dependent or beneficiary  thereof) of GTFM or any
GTFM  Subsidiary  under  which GTFM or any GTFM  Subsidiary  has any  present or
future material obligation or liability, whether actual or contingent. Each such
plan,  agreement,  program,  policy and  arrangement  shall be  referred to as a
"Benefit  Plan." Each Benefit Plan is further  designated  in Section 5.9 of the
Seller Disclosure Schedule as either currently or formerly maintained, sponsored
or contributed  to by GTFM or any GTFM  Subsidiary (a "GTFM Benefit Plan") or by
any other entity (in which case such entity is identified). Neither GTFM nor any
GTFM  Subsidiary,  nor to the Knowledge of Sellers,  any other  Person,  has any
express or implied  commitment,  whether legally  enforceable or not, to modify,
change  or  terminate  any GTFM  Benefit  Plan,  other  than with  respect  to a
modification, change or termination required by Applicable Law.

     (b) With respect to each Benefit Plan, GTFM has delivered or made available
to KCS true, current,  correct and complete copies of (i) each Benefit Plan (or,
if not written,  a written  summary of its material  terms),  including all plan
documents,  adoption agreements, trust agreements,  insurance Contracts or other
funding vehicles and all amendments thereto, (ii) any summaries and summary plan
descriptions,  including any summary of material  modifications,  distributed to
Benefit  Plan  participants,  (iii) the most  recent  actuarial  report or other
financial  statement relating to such Benefit Plan, as applicable,  and (iv) all
filings made with any Governmental Authorities with respect to any Benefit Plan.

     (c) Each Benefit Plan has been administered in material compliance with its
terms and all  Applicable  Laws and material  contributions  required to be made
under the  terms of any of the  Benefit  Plans as of the date of this  Agreement
have been timely made or, if not yet due,  have been  properly  reflected in the
GTFM  Financial  Statements.  With  respect to the Benefit  Plans,  no event has
occurred and there exists no condition  or set of  circumstances  in  connection
with  which GTFM could be subject  to any  material  liability  (other  than for
liabilities  to pay  benefits)  under the terms of,  or with  respect  to,  such
Benefit Plans, or any Applicable Law.

     (d) Except as disclosed in Section 5.9 of the Seller  Disclosure  Schedule:
(i) there has been no prohibited  transaction  (within the meaning of Applicable
Law) with respect to any Benefit Plan that could result in material liability to
GTFM or the Surviving  Company,  (ii) subject to compliance with Applicable Law,
each Benefit Plan can be amended, terminated or otherwise discontinued after the
Effective Time in accordance with its terms,  without material  liability (other
than  liability for ordinary  administrative  expenses  typically  incurred in a
termination event), (iii) no suit,  administrative  proceeding,  action or other
litigation  has been  brought or, to the  Knowledge of Sellers,  is  threatened,
against or with respect to any such Benefit Plan, including any audit or inquiry
by any  Governmental  Authority,  (iv)  all  tax,  annual  reporting  and  other
governmental  filings  required  have been  timely  filed  with the  appropriate
Governmental Authority and all notices and disclosures have been timely provided
to   participants,   and  (v)  each  Benefit  Plan  meets  the  requirement  for
deductibility under the Law and regulations of the UMS.



     (e) No Benefit Plan exists,  and no other  payment shall be made that, as a
result of the execution of this Agreement or the  transactions  contemplated  by
this Agreement (whether alone or in connection with a subsequent  event),  could
result in the  payment to any  employee  of the GTFM Group of any money or other
property or could  result in the  increase,  acceleration  or  provision  of any
payments, other rights or benefits to any such employee.

     SECTION 5.10 LABOR AND OTHER EMPLOYMENT MATTERS.

     (a) Sellers have delivered to KCS a complete and accurate list (giving name
and current payroll  compensation)  of each current  employee of each company in
the GTFM Group as of the date of this Agreement.  Except as set forth in Section
5.10 of the Seller  Disclosure  Schedule,  none of the members of the GTFM Group
has any  responsibility  or liability to any of its employees for any delinquent
payments of wages, salaries,  commissions,  bonuses or other direct compensation
for any services  performed for it or amounts  required to be reimbursed to such
employee  or  paid to such  employee  for  mandatory  profit  sharing,  housing,
mandatory  retirement  benefits,  vacation  benefits or social security benefits
required  under the Laws of the UMS in an amount that would have a GTFM Material
Adverse Effect.

     (b) Except as set forth in Section 5.10 of the Seller  Disclosure  Schedule
or as would not reasonably be expected to have a GTFM Material  Adverse  Effect,
each of the  members of the GTFM  Group (i) are in  compliance  in all  material
respects with all Applicable Law respecting labor, employment, immigration, fair
employment practices, terms and conditions of employment, workers' compensation,
occupational  safety,  plant  closings,  wages  and  hours  and  any  other  Law
applicable to any of their employees, and (ii) has withheld all amounts required
by Applicable Law or by agreement to be withheld from the wages,  salaries,  and
other payments to employees, and (iii) is not liable for any arrears of wages or
any Taxes or any penalty for failure to comply with any of the foregoing.

     (c) Except as set forth in Section 5.10 of the Seller  Disclosure  Schedule
or,  with  respect to notices  received  after the date hereof by TMM or any TMM
Subsidiaries,  disclosed  in  writing  to KCS prior to the  Closing,  no current
officer of any member of the GTFM Group has given  written  notice to TMM or any
TMM Subsidiary of such person's termination of employment with the GTFM Group.

     (d) Except as described in Section 5.10 of the Seller Disclosure  Schedule,
the Mexican Railway Workers Union (EL SINDICATO DE TRABAJADORES  FERROCARRILEROS
DE LA REPUBLICA  MEXICANA)  is the only trade union or labor union  representing
any  employees of GTFM or any GTFM  Subsidiary.  Sellers have  provided to KCS a
true and complete copy of the collective bargaining agreement and any amendments
thereof.  Neither  GTFM  nor any of the  GTFM  Subsidiaries  is a  party,  or is
otherwise subject, to any other collective  bargaining  agreement or other labor
union contract applicable to its employees.  There are no material activities or
proceedings by a labor union or representative thereof to organize any employees
of GTFM or any of the GTFM Subsidiaries.  Except as set forth in Section 5.10 of
the Seller Disclosure  Schedule,  there are no pending negotiations between GTFM
or any of the GTFM  Subsidiaries



and any labor union or  representative  thereof  regarding any proposed material
changes to any existing collective  bargaining  agreement and no such collective
bargaining  agreement is subject to expiration or renewal  within one year after
the date hereof or the extension or renewal of such an agreement or the entering
of any such  agreement.  Except  as set  forth  in  Section  5.10 of the  Seller
Disclosure  Schedule,  there are no pending, and none of GTFM or any of the GTFM
Subsidiaries has experienced  since March 31, 2004 any, material labor disputes,
lockouts,  strikes,  slowdowns,  work stoppages,  or threats thereof nor, to the
Knowledge of Sellers, has any event occurred or does any circumstance exist that
would  provide  a  reasonable  basis  for any  such  dispute,  lockout,  strike,
slowdown,  work stoppage or threat thereof.  Except as set forth in Section 5.10
of the Seller  Disclosure  Schedule,  GTFM and the GTFM  Subsidiaries are not in
default  and  have  not  breached  in any  material  respect  the  terms  of any
applicable collective bargaining or other labor union contract, and there are no
material  claims  or  grievances  outstanding  against  GTFM,  any of  the  GTFM
Subsidiaries,  or any of their respective  employees under any such agreement or
contract.

     (e) Except as specified in Section 5.10 of the Seller Disclosure  Schedule,
(i) there are no claims,  disputes or actions  pending,  or to the  Knowledge of
Sellers  threatened,  between GTFM or any of the GTFM  Subsidiaries,  on the one
hand, and any of their  employees,  on the other hand, and (ii) to the Knowledge
of Sellers,  there are no facts or  circumstances  involving  any employee  that
would  form the  basis  of, or give  rise to,  any  cause of  action,  including
unlawful termination based on discrimination of any kind, except in case of such
clause (i) or (ii) as would not reasonably be expected to have,  individually or
in the aggregate, a GTFM Material Adverse Effect.

     SECTION 5.11 TAX MATTERS.

     (a) Except as set forth in Section 5.11 of the Seller  Disclosure  Schedule
or as would not have a GTFM Material Adverse Effect, all Tax Returns and reports
of GTFM and the GTFM Subsidiaries  required to be filed on or before the Closing
Date have been duly and timely filed (taking into account all proper extensions)
with the appropriate  Taxing Authorities and all such Tax Returns were complete,
correct and accurate. All Taxes shown on such Tax Returns as owed by GTFM or the
GTFM Subsidiaries have been paid.

     (b) Except as set forth in Section 5.11 of the Seller Disclosure  Schedule,
neither GTFM nor any of the GTFM Subsidiaries has received any written notice of
deficiency  or  assessment  from any Taxing  Authority  with respect to material
liabilities  for Taxes of GTFM or any of the GTFM  Subsidiaries  which  have not
been paid or  finally  settled.  No claim has ever  been made in  writing  by an
authority in a jurisdiction  where GTFM or any of the GTFM  Subsidiaries  do not
file Tax  Returns  that such  entity is or may be  subject to  taxation  by that
jurisdiction.  Except  as set forth in  Section  5.11 of the  Seller  Disclosure
Schedule,  no  audit  of any  Tax  Return  concerning  GTFM  or any of the  GTFM
Subsidiaries  is  pending,  being  conducted,  or to the  Knowledge  of Sellers,
threatened  to be  instituted  by a Taxing  Authority.  Except  as set  forth in
Section 5.11 of the Seller Disclosure Schedule, neither GTFM nor any of the GTFM
Subsidiaries  has in effect a waiver of any statute of  limitation in respect of
Taxes or agreed to any  extension



of time with respect to a Tax assessment or deficiency that will be in effect as
of the Closing Date.

     (c) Except as set forth in Section 5.11 of the Seller Disclosure  Schedule,
there  are no  liens  for  Taxes  on  any  assets  of  GTFM  or any of the  GTFM
Subsidiaries other than liens for current Taxes (i) not yet due and payable,  or
(ii) that would not have a GTFM Material Adverse Effect.

     (d) Except as set forth in Section 5.11 of the Seller Disclosure  Schedule,
neither GTFM nor any of the GTFM Subsidiaries has any liability for the Taxes of
any other Person as a transferee or successor,  by Contract,  for withholding or
otherwise.

     (e) Except as set forth in Section 5.11 of the Seller Disclosure  Schedule,
there are no Tax sharing or Tax  indemnity  agreements  or similar  arrangements
with respect to or involving  GTFM or any of the GTFM  Subsidiaries,  other than
agreements  among GTFM and the GTFM  Subsidiaries in which GTFM owns directly or
indirectly all equity interest.

     (f) Except as set forth in Section 5.11 of the Seller Disclosure  Schedule,
each of GTFM and the GTFM  Subsidiaries  has complied in all  material  respects
with all applicable  governmental rules relating to the payment,  collection and
withholding of Taxes.

     (g) Except as set forth in Section 5.11 of the Seller Disclosure  Schedule,
there is no Tax  litigation  pending or to the  Knowledge of Sellers  threatened
against GTFM and/or the GTFM Subsidiaries.

     (h) Except as set forth in Section 5.11 of the Seller Disclosure  Schedule,
neither  GTFM nor any of the GTFM  Subsidiaries  will  suffer  any  adverse  tax
consequences  under  the  Laws of the  UMS  from  ceasing,  as a  result  of the
Acquisition, to be members of the TMM consolidated group.

     (i) Except as set forth in Section 5.11 of the Seller Disclosure  Schedule,
during the period from the date of the GTFM Financial  Statements until the date
of this  Agreement,  GTFM  and each of the GTFM  Subsidiaries  (i) have  made no
change in any  accounting  method used for Tax  purposes or in  depreciation  or
amortization  policies,  and have made no election for Tax purposes which is not
consistent with the method, policies and elections made prior to the date of the
GTFM Financial  Statements,  and (ii) have not settled any pending Tax audits or
settled any Tax liability.

     (j) The net operating loss carry forwards of GTFM and the GTFM Subsidiaries
shown on the most recent Tax Returns for GTFM and the GTFM  Subsidiaries are not
subject  to  reduction  as  a  result  of  consummation   of  the   transactions
contemplated  by this  Agreement  and the Ancillary  Agreements  (other than any
reduction in connection with the Final Resolution of the VAT Claim and Put).

     SECTION 5.12 LEGAL PROCEEDINGS.  Except (i) as set forth in Section 5.12 of
the Seller Disclosure Schedule, and (ii) for actions brought or threatened to be
brought by or on behalf of KCS and its Affiliates or their respective  officers,
directors,  employees or agents, including persons named by them as directors or
alternate  directors  of  GTFM  or any  GTFM  Subsidiary,  there  are no  legal,
administrative,   arbitral   or  other   proceedings   (including   disciplinary
proceedings),   claims,   suits,   actions   or   governmental   or   regulatory
investigations  of any  nature  whether in the UMS or  elsewhere  (collectively,
"Proceedings")  that are pending  or, to the  Knowledge  of Sellers,  threatened
against  GTFM  or any of  the  GTFM  Subsidiaries  or  any of  their  respective
directors  or officers (in their  capacities  as such) or the GTFM Assets or the
GTFM Business,  which if determined adversely would have a GTFM Material Adverse
Effect,  or  that  challenge  the  validity  or  propriety  of the  transactions
contemplated  by  this  Agreement  or by any of the  Ancillary  Agreements.  The
Proceedings  set forth in Section 5.10 of the Seller  Disclosure  Schedule under
the heading "List of Direct  Lawsuits  Against GTFM By Former TFM Employees" are
not  reasonably  expected to have a GTFM Material  Adverse  Effect.  There is no
injunction,  order,  judgment  or  decree  imposed  upon GTFM or any of the GTFM
Subsidiaries,  any  material  portion of the GTFM  Assets or the GTFM  Business.
Section  5.12 of the  Seller  Disclosure  Schedule  sets  forth a  complete  and
accurate  list  of all  Proceedings  which  any  of  Sellers,  any  of  Sellers'
Subsidiaries,  or to the  Knowledge  of  Sellers,  any  of  Sellers',  or  their
Subsidiaries',   respective  officers,  directors,  agents  or  representatives,
including  persons  named by TMM as directors or alternate  directors of GTFM or
any GTFM  Subsidiary,  have  filed or caused to be filed  against  KCS,  any KCS
Subsidiary or any of their respective  officers,  directors or stockholders,  in
their capacity as such.

     SECTION 5.13 PERMITS AND COMPLIANCE.

     (a) Except as set forth in Section 5.13 of the Seller Disclosure  Schedule,
GTFM  and  each  of  the  GTFM  Subsidiaries  hold  all  licenses,   franchises,
concessions,  decrees,  permits and authorizations required under Applicable Law
(collectively,  "Permits") to operate the GTFM  Business as currently  conducted
where the failure to hold such Permits  would  reasonably  be expected to have a
GTFM Material Adverse Effect.  Each of GTFM and the GTFM Subsidiaries (i) holds,
and at all times has held,  and at Closing will hold, all Permits for the lawful
ownership,  operation  and use of the GTFM  Assets  and the  conduct of the GTFM
Business,  (ii) has been and is in compliance  with each such Permit,  and (iii)
has not received  notice  asserting  any  violation of any such Permit,  in each
case,  where the failure to hold or comply or such violation would reasonably be
expected to have a GTFM Material Adverse Effect.

     (b)  Except  (i) as set  forth in  Section  5.13 of the  Seller  Disclosure
Schedule,  (ii) for normal examinations  conducted by any Governmental Authority
in the  regular  course of the  business of GTFM and the GTFM  Subsidiaries,  or
(iii) as would  not  reasonably  be  expected  to have a GTFM  Material  Adverse
Effect, since December 31, 2003, no Governmental  Authority has provided written
notice to GTFM or any of the GTFM  Subsidiaries of any threatened  proceeding or
investigation  into  the  business  or  operations  of GTFM  or any of the  GTFM
Subsidiaries or any of their members, officers,  directors or employees in their
capacity as such with GTFM or any of the GTFM Subsidiaries and, to the Knowledge
of the Sellers,  no such



proceedings or investigations  are contemplated.  Except as set forth in Section
5.13 of the  Seller  Disclosure  Schedule,  there is no  unresolved  deficiency,
violation or exception  claimed or asserted by any  Governmental  Authority with
respect to any examination of GTFM or any of the GTFM Subsidiaries.

     (c) Except as set forth in Section 5.13 of the Seller Disclosure  Schedule,
neither GTFM nor any of the GTFM  Subsidiaries is in violation of any Applicable
Laws or orders of any  Governmental  Authority except as would not reasonably be
expected to have a GTFM Material Adverse Effect. No event has occurred or exists
that would (with or without notice or lapse of time) give rise to any obligation
on the part of GTFM or any of the GTFM  Subsidiaries to undertake or to bear all
or any  portion of the cost of any  remedial  action of any nature  which  would
reasonably be expected to have a GTFM Material Adverse Effect.

     (d) Without  limiting the generality of the foregoing,  to the Knowledge of
Sellers no basis exists for  revocation,  material  modification  or termination
prior to the expiration, of the Concession,  except as set forth in Section 5.13
of the Seller Disclosure Schedule.

     SECTION 5.14 ENVIRONMENTAL MATTERS.  Except as set forth in Section 5.14 of
the Seller Disclosure  Schedule,  GTFM and each of the GTFM Subsidiaries (i) are
in compliance  with,  and are not subject to any liability  under,  in each case
with respect to all, applicable  Environmental Laws, (ii) hold all Environmental
Permits  necessary  to  conduct  their  current  operations,  and  (iii)  are in
compliance with their respective Environmental Permits, except where the failure
to hold  or be in  compliance  with  such  Environmental  Permits  would  not be
expected to have a GTFM Material Adverse Effect.  Except as set forth in Section
5.14 of the Seller Disclosure  Schedule,  or as would not reasonably be expected
to have a GTFM  Material  Adverse  Effect,  neither  GTFM  nor  any of the  GTFM
Subsidiaries has received any written notice,  demand,  letter, claim or request
for  information  alleging that GTFM or any of the GTFM  Subsidiaries  may be in
violation of, or liable under,  any  Environmental  Law.  Except as set forth in
Section 5.14 of the Seller Disclosure Schedule, neither GTFM nor any of the GTFM
Subsidiaries (x) has entered into or agreed to any consent decree or order or is
subject to any judgment,  decree or judicial order  relating to compliance  with
Environmental  Laws,  Environmental  Permits  or  the  investigation,  sampling,
monitoring,  treatment,  remediation,  removal or cleanup of Hazardous Materials
and no  investigation,  litigation  or other  proceeding  is pending  or, to the
Knowledge  of  the  Sellers,  threatened,  with  respect  thereto,  or (y) is an
indemnitor  or has assumed  liability  in  connection  with any pending  demand,
notice,  claim,  or other  allegation,  or to the Knowledge of the Sellers,  any
claim threatened,  by or against any third-party relating to any liability under
any  Environmental  Law or relating to any  Hazardous  Materials.  Except as set
forth  in  Section  5.14 of the  Seller  Disclosure  Schedule,  none of the real
property owned or leased or operated by GTFM or any of the GTFM  Subsidiaries is
listed or, to the Knowledge of the Sellers,  proposed for listing on any list of
sites  maintained  by any  Governmental  Authority  requiring  investigation  or
cleanup.



     SECTION 5.15  PROPERTIES.  Section 5.15 of the Seller  Disclosure  Schedule
sets forth a true and complete  list of all real  property and interests in real
property owned or leased by GTFM or any of the GTFM  Subsidiaries  and a summary
of the lease  agreements  with respect thereto (true and correct copies of which
leases have been  provided to KCS) and a true and complete  list of all personal
property,  equipment and fixtures  (other than items having a book value of less
than $1 million individually) owned by GTFM or any of the GTFM Subsidiaries, all
of which  personal  property,  equipment and fixtures are in good  condition and
repair,  normal wear and tear excepted.  Each of GTFM and the GTFM  Subsidiaries
has good  and  marketable  title  to,  or valid  and  enforceable  leasehold  or
concession  interests in, all of its properties and tangible assets necessary to
conduct the GTFM  Business as  currently  conducted  except where the failure to
have such title or  interest  would not  reasonably  be  expected to have a GTFM
Material Adverse Effect. All such property and assets which constitute  personal
property, equipment, and fixtures, are in good condition and repair, normal wear
and tear excepted.  Except as set forth in Section 5.15 of the Seller Disclosure
Schedule, all of such assets and properties, other than assets and properties in
which GTFM or any of the GTFM  Subsidiaries has a leasehold  interest,  are free
and clear of all Encumbrances other than Permitted Encumbrances and Encumbrances
which would not individually or in the aggregate  reasonably be expected to have
a GTFM  Material  Adverse  Effect.  Each of GTFM and the GTFM  Subsidiaries  has
complied in all material  respects with the terms of all leases and  concessions
(including  the  Concession)  to which it is a party  and  under  which it is in
occupancy, and all such leases and concessions (including the Concession) are in
full force and effect.


     SECTION  5.16  INSURANCE.  Section 5.16 of the Seller  Disclosure  Schedule
includes a list of all policies of fire, liability, product liability,  workers'
compensation,  health and other forms of  insurance  in effect as of the date of
this  Agreement  with  respect  to  the  GTFM  Business  (the  "GTFM   Insurance
Policies"), including the named insured(s) and all beneficiaries thereunder, and
true and complete  copies of the GTFM Insurance  Policies have been delivered to
KCS.  Neither  GTFM,  nor any of the  GTFM  Subsidiaries  has been  refused  any
insurance with respect to any aspect of the operations of its business,  nor has
its coverage been rescinded by any insurance carrier to which it has applied for
insurance or with which it has carried  insurance.  No notice of cancellation or
termination  has been received with respect to any such policy.  The  activities
and operations of GTFM and each of the GTFM  Subsidiaries have been conducted in
a manner so as to conform in all material respects to all material provisions of
the GTFM Insurance Policies.


     SECTION  5.17 NO OTHER  BROKER.  Other  than  J.P.  Morgan  Chase and Elek,
Moreno-Valle y Asociados,  S.A. de C.V. ("EMVA"), the fees and expenses of which
have been or will be paid by TMM, no broker,  finder or similar  intermediary is
entitled to any broker's,  finder's or similar fee or other remuneration from or
as a result of  engagement by Sellers or any of their  respective  Affiliates in
connection with this  Agreement,  the Ancillary  Agreements or the  transactions
contemplated hereby or thereby.



     SECTION 5.18 NO GTFM MATERIAL ADVERSE EFFECT.  Since December 31, 2003, (i)
GTFM and the GTFM Subsidiaries  have conducted their respective  businesses only
in the ordinary  course,  consistent with past practice,  except as set forth in
Section 5.18 of the Seller Disclosure Schedule,  and (ii) there has not been (x)
any GTFM  Material  Adverse  Effect  or any  event or  development  that  could,
individually or in the aggregate, reasonably be expected to have a GTFM Material
Adverse  Effect,  or (y) to the Knowledge of Sellers,  any event or  development
that  would,  individually  or in  the  aggregate,  reasonably  be  expected  to
materially  delay or prevent the  consummation of, or the performance by Sellers
or any of their respective  Affiliates,  of any of their obligations under, this
Agreement or any of the Ancillary Agreements, to which any Seller is a party.


     SECTION 5.19 SUFFICIENCY OF AND TITLE TO ASSETS.  GTFM and each of the GTFM
Subsidiaries  owns or licenses,  and upon the  consummation  of the Merger,  the
Surviving Company and its Subsidiaries will own or license, all right, title and
interest in and to all of the  properties,  assets,  Contracts and rights of any
kind,  whether  tangible  or  intangible,   real  or  personal   (including  the
Concession),  necessary  to enable  GTFM,  the GTFM  Subsidiaries  (prior to the
Closing)  and the  Surviving  Company  (after the  Closing)  to conduct the GTFM
Business  as  presently  conducted  (the "GTFM  Assets"),  free and clear of any
Encumbrances other than Permitted  Encumbrances,  except as set forth in Section
5.19 of the Seller Disclosure Schedule.


     SECTION  5.20  INFORMATION  IN  FILED  DOCUMENTS.  None of the  information
regarding any of TMM, TMMH, MM, GTFM or any of the GTFM Subsidiaries supplied or
to be  supplied  by  Sellers  in  writing  prior to the  Closing  expressly  for
inclusion or  incorporation  by reference in any  documents to be filed with any
Governmental  Authority prior to the Closing in connection with the transactions
contemplated  hereby,  including the proxy materials to be filed with the SEC by
KCS  in  connection  with  the  Merger,  will,  at  the  respective  times  such
information is supplied, contain any untrue statement of a material fact or omit
to state a material fact required to be stated  therein or necessary in order to
make the statements therein, in light of the circumstances under which they were
made, not misleading.


     SECTION 5.21 AFFILIATE  AGREEMENTS.  Section 5.21 of the Seller  Disclosure
Schedule sets forth a complete and accurate list or description,  as of the date
of this Agreement,  of all Contracts,  understandings  and arrangements  between
GTFM or any  GTFM  Subsidiary,  on the one  hand,  and TMM or any TMM  Affiliate
(other  than  GTFM and its  Subsidiaries),  on the other  hand  (the  "Affiliate
Agreements") (other than this Agreement,  the Ancillary Agreements and the other
Agreements contemplated herein and therein to be entered into in connection with
the  transactions  contemplated  hereby and thereby) and identifying  those: (i)
Affiliate  Agreements  which shall  continue in effect in accordance  with their
terms after the Closing Date (the "Continuing Affiliate  Agreements"),  and (ii)
Affiliate  Agreements  which shall be terminated as of the Closing Date (in each
case without penalty or obligation to GTFM or any GTFM



Subsidiary). With respect to the Affiliate Agreements, other than the Continuing
Affiliate Agreements,  (w) KCS or a KCS Affiliate shall be entitled to terminate
any or all of those agreements after ninety (90) days following the Closing Date
at its sole  discretion  upon sixty (60) days  notice and without  liability  or
further obligation thereunder, (x) TFM and its Affiliates after the Closing Date
shall be liable under those  agreements only for the contracted basic charge for
services and not for any other charges, expenses, costs, interest, or penalties,
and (y) neither TFM, nor any entity which is after the Closing Date an Affiliate
of TFM, shall be responsible for any charges, payments, expenses, or other costs
incurred under those agreements prior to May 17, 2004.


     SECTION 5.22 NO LOSS OF SIGNIFICANT CUSTOMERS. From January 1, 2004 through
the Business Day immediately preceding the date of this Agreement,  neither GTFM
nor any of the  GTFM  Subsidiaries  has had any  customer  which  has  canceled,
terminated  or failed to renew,  or threatened in writing to do so, any Contract
with such entity which  accounted  for more than $10 million in revenues to such
entity in the year ended December 31, 2003.


     SECTION 5.23 TRADING IN AND OWNERSHIP OF KCS COMMON STOCK.  None of Sellers
or any of their  respective  Affiliates has, during the sixty (60) Business Days
prior to the date hereof,  either  directly or  indirectly,  bought or sold,  or
otherwise  effected any trade in any shares of KCS Common Stock, or any Security
derivative  of KCS Common  Stock and none of Sellers or any of their  respective
Affiliates,  own as of the date of this Agreement any shares of KCS Common Stock
or any security derivative of KCS Common Stock.


     SECTION 5.24 SOLVENCY. No insolvency or bankruptcy  proceedings against TMM
or any of its Subsidiaries are pending as of the last Business Day preceding the
date of this Agreement.


     SECTION  5.25  TERMINATION  OF OPTION  AGREEMENT.  The Amended and Restated
Option Agreement between MM and The Bank of New York, as Trustee,  dated October
25, 2002, as amended (the "Option  Agreement"),  entered into in connection with
the Logistics  Trust 2000-A (the "Trust")  formed pursuant to the Second Amended
and Restated Master Trust Agreement,  dated as of December 10, 2002 (the "Master
Trust  Agreement"),  between TMM and The Bank of New York, as Trustee,  has been
terminated,  and the Master Trust  Agreement and the  Transaction  Documents (as
defined in the Master Trust Agreement) have been amended, so that as of the date
of this  Agreement and the Closing Date (i) there is and shall be no outstanding
option, warrant, right, subscription,  call, legally binding commitment or other
agreement or right of any kind  entitling any Person  (including The Bank of New
York,  as Trustee of the Trust) to  acquire,  or any other  Encumbrance  arising
under  such  agreements  on,  any  shares  of  capital  stock of GTFM,  (ii) the
provision in Section 6.4 of the Option Agreement  requiring a written  agreement
to be bound by the terms of the Option Agreement and related agreements does not
and shall not apply to the purchase of the GTFM



Shares under this Agreement, and (iii) the purchase of the GTFM Shares hereunder
will be  effective  without  KCS or any  Subsidiary  of KCS  entering  into  any
agreement  to be  bound  by  the  terms  of the  Option  Agreement  and  related
agreements.  MM  has  caused  each  legend  affixed  to any  stock  certificates
evidencing  GTFM Shares  pursuant to the Option  Agreement  to be  cancelled  or
removed,  and MM has  caused  any  annotation  that was  required  by the Option
Agreement  to be placed in the Stock  Registry  Book of GTFM to be  cancelled or
removed.  The Amended and Restated Put Option Agreement  between MM and The Bank
of New York, as Trustee,  dated  October 25, 2002,  as amended,  entered into in
connection  with the Trust has been  terminated,  and the Master Trust Agreement
and the  Transaction  Documents (as defined in the Master Trust  Agreement) have
been amended so that as of the date of this Agreement and the Closing Date there
is and  shall  be no  obligation  of KCS,  the KCS  Purchasers  or any of  their
Affiliates to purchase or otherwise acquire any certificate or other interest in
or related to the Trust.

                                   ARTICLE 6

                      REPRESENTATIONS AND WARRANTIES OF KCS

     Except as set forth in the  disclosure  schedule  attached  as Exhibit B to
this  Agreement  (the "KCS  Disclosure  Schedule"),  KCS hereby  represents  and
warrants to each of the Sellers as follows:

     SECTION 6.1 ORGANIZATION AND RELATED MATTERS.

     (a)  KCS is a  corporation,  duly  formed,  validly  existing  and in  good
standing under the laws of the State of Delaware,  and each of its  Subsidiaries
is a corporation or other business entity duly organized,  validly  existing and
in good standing under the laws of its jurisdiction of organization. KCS has the
corporate power and authority and each of its  Subsidiaries has the corporate or
other  applicable  power and  authority  necessary to carry on their  respective
businesses  in the manner  they are now being  conducted  and to own,  lease and
operate all of their respective properties and assets.

     (b) KCS and  each  of its  respective  Subsidiaries  is  duly  licensed  or
qualified  to do  business  in each  jurisdiction  in which  the  nature  of the
business  conducted  by it or the  character or location of the  properties  and
assets  owned,  leased or operated by it makes such  qualification  or licensing
necessary,  except  in  jurisdictions  where  the  failure  of such  license  or
qualification  would not  individually  or in the aggregate  have a KCS Material
Adverse Effect.

     SECTION 6.2 AUTHORITY; NO VIOLATION.

     (a) Each of KCS,  KARA Sub,  KCS Sub,  KCS  Investment  and Caymex has full
corporate  power and  authority  to execute and deliver this  Agreement  and the
Ancillary  Agreements  to  which  it is a  party,  to  perform  its  obligations
hereunder and thereunder and to consummate the transactions  contemplated hereby
and thereby.  The  execution  and delivery of this  Agreement  and the Ancillary
Agreements  to  which it is a party  and the  consummation  of the  transactions
contemplated  hereby and thereby  have been duly and validly  authorized  by all
requisite



corporate  action on the part of KCS,  KARA Sub,  KCS Sub,  KCS  Investment  and
Caymex  and no other  corporate  action on any of their  parts is  necessary  to
approve this  Agreement or the  Ancillary  Agreements  to which it is a party or
authorize or consummate the transactions contemplated hereby and thereby, except
for obtaining the KCS  Stockholder  Approval as described in Section 6.3. KCS or
its  Affiliates  have taken all  actions  required  to be taken on their part to
approve the  execution,  delivery and  performance by GTFM of this Agreement and
any Ancillary  Agreements to which GTFM is a Party. KCS has received the opinion
of Morgan  Stanley & Co.,  Incorporated,  to the effect that the  Acquisition is
fair from a financial  point of view to KCS.  This  Agreement  and the Ancillary
Agreements  to which it is a party  have  been  duly and  validly  executed  and
delivered by KCS, KARA Sub, KCS Sub, KCS Investment and Caymex (except for those
Ancillary  Agreements  that are not  dated  the  date  hereof,  which  Ancillary
Agreements  shall  be duly  and  validly  executed  and  delivered  prior to the
Closing) and  (assuming  the due  authorization,  execution and delivery of this
Agreement and the Ancillary  Agreements by the other Parties hereto and thereto)
constitute  valid  and  binding  obligations  of KCS,  KARA  Sub,  KCS Sub,  KCS
Investment and Caymex (except for those Ancillary  Agreements that are not dated
the date hereof,  which Ancillary  Agreements shall constitute valid and binding
obligations  of KCS,  KARA  Sub,  KCS Sub,  KCS  Investment  and  Caymex  at the
Closing),  enforceable  against  each of them in  accordance  with their  terms,
except  as (i) the  enforceability  thereof  may be  subject  to or  limited  by
bankruptcy, insolvency,  reorganization,  moratorium or similar laws relating to
or affecting the rights of creditors generally and the availability of equitable
relief  (whether  in  proceedings  at law or in  equity),  and  (ii)  rights  to
indemnification  may  be  limited  by  the  Securities  Laws  and  the  policies
underlying such laws.

     (b) Neither the execution  and delivery of this  Agreement or the Ancillary
Agreements to which it is a party by KCS, KARA Sub, KCS Sub, KCS  Investment and
Caymex nor the consummation by them of the transactions  contemplated  hereby or
thereby to be performed by them, nor compliance by them with any of the terms or
provisions hereof or thereof, will (i) violate any provision of their respective
Certificates  of  Incorporation  or Bylaws,  (ii) assuming that the consents and
approvals  referred to in Section 6.3 are duly obtained,  (x) violate,  conflict
with or require any notice, filing, consent or approval under any Applicable Law
to which KCS or any of its  Subsidiaries or any of its properties,  contracts or
assets are subject,  or (y) violate,  conflict  with,  result in a breach of any
provision of or the loss of any benefit under, constitute a default (or an event
which,  with or without  notice or lapse of time,  or both,  would  constitute a
default)  under,  result  in the  termination  of or a right of  termination  or
cancellation  under,  accelerate  or  result in a right of  acceleration  of the
performance  required by, result in the creation of any liability under,  result
in the creation of any Encumbrance  upon the properties,  contracts or assets of
KCS, KARA Sub, KCS Sub, KCS  Investment or Caymex under,  or require any notice,
approval or consent under, any note, bond, mortgage,  indenture,  deed of trust,
license,  lease, agreement or other instrument or obligation to which KCS or any
of its Subsidiaries is a party, or by which KCS or any of its  Subsidiaries,  or
any of its properties or assets,  may be bound or affected except in the case of
this  clause  (ii) in each case as would not have or  reasonably  be expected to
have a KCS Material Adverse Effect.



     (c) The shares of KCS Common Stock to be issued  pursuant to this Agreement
have been duly  authorized  and, when issued as  contemplated  by this Agreement
will be duly and validly issued,  fully paid and  non-assessable and free of any
pre-emptive  rights (except those provided in the  Stockholders'  Agreement) and
entitled  to  the  benefits  and  rights  set  forth  in  the   Certificate   of
Incorporation of KCS, as in effect at the Effective Time.

     SECTION 6.3 CONSENTS AND APPROVALS.

     (a) The affirmative  vote of the holders of a majority of the votes cast by
the  holders of all  outstanding  shares of KCS Common  Stock and KCS  Preferred
Stock,  voting together as a single class, to approve the issuance of the Common
Stock in  accordance  with the Del.  G.C.L.  and the rules of the NYSE (the "KCS
Stockholder  Approval"),  is the only vote of the holders of any Security of KCS
necessary to approve this Agreement and the other  transactions  contemplated by
this Agreement and the Ancillary Agreements.

     (b) Except (i) as set forth in Section  6.3(a),  (ii) the prior approval of
the Mexican  Foreign  Investments  Commission,  (iii)  clearance  by the Mexican
Competition  Commission,  (iv) notice to the Mexican Ministry of  Communications
and Transportation, (v) compliance with and filings under the Securities Laws as
may be required in connection  with this Agreement and the Ancillary  Agreements
and the transactions  contemplated hereby and thereby, (vi) any required filings
with the NYSE,  (vii) the filing of the  Certificate  of Merger,  and (viii) the
expiration or earlier  termination  of the waiting  period under the HSR Act, no
consents or approvals of, or filings,  declarations  or  registrations  with any
Governmental  Authority,  any third party or any other  Person are  necessary in
connection  with the  execution  and delivery by KCS of this  Agreement  and the
Ancillary  Agreements to which it is a party and the  consummation by KCS of the
Acquisition  or the other  transactions  contemplated  by this Agreement and the
Ancillary Agreements.

     (c) The Board of  Directors  of KCS (the "KCS  Board")  has  approved  this
Agreement,  the Ancillary Agreements,  and the Acquisition  contemplated herein,
including the issuance of more than 15% of the  outstanding  voting stock of KCS
pursuant  to the  Acquisition,  to  ensure  that the  restrictions  on  business
combinations  set forth in Section 203 of the Del. G.C.L.  will not apply to the
Acquisition or to the consummation of the other transactions referred to in this
Agreement and the Ancillary  Agreements  (including  the exercise of pre-emptive
rights under and in accordance with the terms of the  Stockholders'  Agreement).
Prior to Closing, KCS shall take all corporate action necessary to amend the KCS
Stockholder Rights Plan so that the acquisition of the KCS Common Stock pursuant
to this Agreement and the Ancillary Agreements and the transactions contemplated
by this  Agreement and the Ancillary  Agreements  will not constitute a "trigger
event" under the KCS  Stockholder  Rights Plan. To the best of KCS's  Knowledge,
except for Section 203 of the Del.  G.C.L.,  no control share,  anti-takeover or
similar  statute  under the laws of any state in the United States is applicable
to the acquisition of KCS Common Stock contemplated  hereby and by the Ancillary
Agreements.



     SECTION 6.4 AUTHORIZED CAPITALIZATION.  The authorized capital stock of KCS
consists  of  400,000,000  shares of  Common  Stock,  $.01 par value per  share,
840,000  shares of  Preferred  Stock,  $25 par value per share  ("KCS  Preferred
Stock") and 2,000,000 shares of New Series Preferred Stock,  $1.00 par value per
share ("New  Series  Preferred  Stock").  As of March 31,  2004,  there were (i)
62,641,294 shares of KCS Common Stock, 242,170 shares of KCS Preferred Stock and
400,000 shares of 4.25% Redeemable  Cumulative  Convertible  Perpetual Preferred
Stock,  Series C, issued and  outstanding,  (ii) 4,730,485  shares of KCS Common
Stock  reserved for  issuance  pursuant to options  granted  pursuant to the KCS
Stock Option Plan, and (iii) 13,389,120  shares of KCS Common Stock reserved for
issuance  upon  conversion  of  the  4.25%  Redeemable  Cumulative   Convertible
Perpetual  Preferred Stock,  Series C. All of the shares of KCS Common Stock and
KCS Preferred  Stock  outstanding  at the date of this  Agreement are listed for
trading on the NYSE. All of the shares of capital stock of KCS  outstanding  are
duly  authorized,  validly  issued,  fully paid,  nonassessable  and free of any
preemptive  rights and are not subject to any voting trust agreement (or similar
agreement) or other Contract  restricting  or otherwise  relating to the voting,
dividend  rights or disposition  of such shares to which KCS is a party,  except
for  restricted  share  agreements  between KCS and certain of its  officers and
limited stock appreciation rights. Except as set forth in this Agreement,  there
is no outstanding option, warrant,  convertible or exchangeable security, right,
subscription,   call,  right  of  first  refusal,  legally  binding  commitment,
preemptive  right  or other  agreement  or  right  of any  kind to  purchase  or
otherwise  acquire  (including  by exchange or  conversion)  from KCS or any KCS
Subsidiary  any  shares  of  capital  stock  of KCS.  There  are no  outstanding
obligations of KCS or any of its Subsidiaries to redeem, repurchase or otherwise
acquire any of the shares of capital stock of KCS or any shares of capital stock
(or other ownership  interests) of any of its Subsidiaries.  Neither KCS nor any
KCS  Subsidiary  has   outstanding  any  bonds,   debentures,   notes  or  other
indebtedness  generally  having  the  right to vote  (or  convertible  into,  or
exchangeable  for,  Securities having the right to vote) on any matters on which
holders of shares of  capital  stock of KCS may  consent  or vote  ("KCS  Voting
Debt").  There are no options,  warrants,  rights,  convertible or  exchangeable
Securities, "phantom" interests or other ownership interest appreciation rights,
commitments, contracts, arrangements or undertakings of any kind to which KCS or
any of its Subsidiaries is a party or by which any of them is bound,  except for
this  Agreement,  (i)  obligating  KCS or any of its  Subsidiaries  or any other
Person to issue,  deliver  or sell,  or cause to be issued,  delivered  or sold,
existing or additional shares of capital stock of KCS or capital stock (or other
ownership  interests) of its Subsidiaries,  or any security  convertible into or
exercisable  or  exchangeable  for any of the  foregoing or for KCS Voting Debt,
(ii)  obligating  KCS or any of its  Subsidiaries  or any other Person to issue,
grant,  extend or enter into any such option,  warrant,  call,  right,  security
commitment, contract, arrangement or undertaking, (iii) that give any Person the
right to receive any  economic  benefit or right  similar to or derived from the
economic  benefits and rights accruing to holders of the shares of capital stock
of KCS or capital stock (or other ownership  interests) of its Subsidiaries,  or
(iv) that give rise to a right to receive any payment upon the execution of this
Agreement  or the  consummation  of the Merger or any of the other  transactions
contemplated hereby, except as set forth in this Agreement.

     SECTION 6.5 SEC FILINGS.  Since  December 31, 2003,  KCS has filed with the
SEC all  documents  required  to be filed by it under the  Exchange  Act and the
Securities Act and as of



their  requisite  dates (or the dates of any amendments  thereto) such documents
(the "KCS SEC  Documents")  did not contain any untrue  statement  of a material
fact or omit to state a material fact required to be stated therein or necessary
in order to make the  statements  therein  not  misleading  and  complied in all
material  respects with the applicable  requirements of the Exchange Act and the
Securities Act and the applicable rules of the SEC thereunder.


     SECTION 6.6 FINANCIAL STATEMENTS; UNDISCLOSED LIABILITIES.

     (a) Subject to the limitation in Section 6.6(b):

          (i)  the  audited  consolidated  financial  statements  and  unaudited
     interim  financial  statements  of KCS  and its  consolidated  Subsidiaries
     included in the KCS SEC Documents (the "KCS Financial  Statements") present
     fairly,  in all material  respects,  in  conformity  with GAAP applied on a
     consistent  basis  (except as may be indicated in the notes  thereto),  the
     consolidated financial position of KCS and its consolidated Subsidiaries as
     of the dates thereof and their consolidated  results of operations and cash
     flows for the periods  then ended  (subject,  in the case of the  unaudited
     interim financial statements, to normal year-end adjustments), and

          (ii) except as set forth in the KCS  Financial  Statements  or the KCS
     SEC Documents  filed prior to the date of this  Agreement,  neither KCS nor
     any of its  Subsidiaries  has any  liabilities or obligations of any nature
     (whether accrued, absolute, contingent or otherwise) required by GAAP to be
     set forth on a consolidated  balance sheet of KCS and the  consolidated KCS
     Subsidiaries  or in the  notes  thereto  or which,  individually  or in the
     aggregate,  could  reasonably  be expected to have a KCS  Material  Adverse
     Effect.

     (b)  Notwithstanding  the foregoing,  no representation or warranty is made
with respect to any information  regarding GTFM or any GTFM Subsidiary  which is
based upon and in conformity  with  information  provided in writing by GTFM and
included  in, or relied upon with  respect to  information  included in, the KCS
Financial Statements or the KCS SEC Documents.

     SECTION 6.7 NO OTHER BROKER. Other than Morgan Stanley & Co., Incorporated,
whose  fees and  expenses  will be paid by KCS,  no  broker,  finder or  similar
intermediary  is  entitled  to any  broker's,  finder's  or similar fee or other
commission  from or as a result of engagement by KCS or any of its  Subsidiaries
in connection with this Agreement,  the Ancillary Agreements or the transactions
contemplated hereby or thereby.


     SECTION  6.8  INFORMATION  IN  FILED  DOCUMENTS.  None  of the  information
regarding KCS or any of its  Subsidiaries  supplied or to be supplied by KCS for
inclusion in any documents to be filed with any Governmental  Authority prior to
Closing in connection  with the  transactions  contemplated  hereby will, at the
respective  times  such  information  is  supplied  by KCS,  contain  any untrue
statement  of a material  fact or omit to state a material  fact  required to be
stated



therein or necessary in order to make the  statements  therein,  in light of the
circumstances  under  which they were made,  not  misleading;  PROVIDED  that no
representation  is made with respect to any  information  regarding  GTFM or any
GTFM Subsidiary which is based upon and in conformity with information  provided
in writing by GTFM and included  in, or relied upon with respect to  information
included in, documents  referred to in this Section.  Except as set forth in the
KCS SEC Documents filed prior to the date of this Agreement, neither KCS nor any
of its  Subsidiaries  has entered  into any  agreement or  transaction  with any
officer,  director  or other  employee  of KCS or any  Subsidiary  of KCS or any
immediate  family  member  of any such  person  which  would be  required  to be
reported or disclosed in the KCS SEC Documents.


     SECTION 6.9 NO KCS MATERIAL ADVERSE EFFECT; OTHER ACTIONS.

     (a) Since March 31, 2004, (i) KCS and its Subsidiaries have conducted their
respective  businesses  only  in  the  ordinary  course,  consistent  with  past
practice,  (ii) there has not been any KCS Material  Adverse Effect or any event
or  development  that could,  individually  or in the  aggregate,  reasonably be
expected to have a KCS Material  Adverse  Effect,  and (iii) to the Knowledge of
KCS, there has not occurred any event or development that would, individually or
in the  aggregate,  reasonably  be expected to prevent the  consummation  of the
Acquisition or the performance by KCS of its obligations under this Agreement or
any of the Ancillary Agreements to which it is a party.

     (b)  Except as  disclosed  in the KCS SEC  Documents,  there are no ongoing
discussions  regarding,  and neither KCS nor any  Subsidiary  of KCS has entered
into any agreement or understanding regarding:

          (i) a transaction  which,  if  completed,  would result in a Change of
     Control of KCS or a KCS Acquisition Proposal;

          (ii) the sale, lease or other  disposition of all or substantially all
     of the  consolidated  assets of KCS and its Subsidiaries or the creation of
     any material joint ventures; or

          (iii) the issuance of a material  amount of equity  securities  of KCS
     (except as contemplated in this Agreement).

     SECTION 6.10 KCS SUB. The  authorized  capital stock of KCS Sub consists of
1,000  shares of KCS Sub  Common  Stock.  There are 900 shares of KCS Sub Common
Stock issued and  outstanding,  all of which are owned by KCS, free and clear of
all Encumbrances. All of the shares of KCS Sub Common Stock outstanding are duly
authorized, validly issued, fully paid, nonassessable and free of any preemptive
rights and are not subject to any voting trust agreement (or similar  agreement)
or other  contract  restricting  or otherwise  relating to the voting,  dividend
rights of  disposition  of such  shares.  KCS Sub is not a party to any contract
other than this Agreement.  KCS Sub has not conducted any business other than in
connection  with  the



transactions contemplated by this Agreement and the Ancillary Agreements and has
incurred no material indebtedness and has no material assets except as described
in this Agreement.


     SECTION 6.11 LEGAL PROCEEDINGS.

     (a) There are no Proceedings  that are pending or, to the Knowledge of KCS,
threatened  against KCS or any of its  Subsidiaries  or any of their  respective
directors or officers  (in their  capacity as such) or the KCS Assets or the KCS
Business (other than the  Proceedings  referred to in Section 7.15) which (i) if
adversely  determined,  would  have  a KCS  Material  Adverse  Effect,  or  (ii)
challenge  the validity or propriety of the  transactions  contemplated  by this
Agreement or by any of the Ancillary Agreements.

     (b) Section 6.11 of the KCS  Disclosure  Schedule sets forth a complete and
accurate list of all litigation or arbitration  actions,  claims or proceedings,
which KCS, any of its Subsidiaries,  or to the Knowledge of KCS, any of KCS's or
its Subsidiaries'  respective  officers,  directors,  agents or representatives,
including  persons  named by KCS as directors or alternate  directors of GTFM or
any GTFM  Subsidiary,  have  filed or  caused  to be  filed  against  any of the
Sellers, any of the Sellers' Subsidiaries,  or any of their respective officers,
directors or shareholders, in their capacity as such.

     SECTION 6.12 KCS CAPITAL  RESOURCES.  The  information set forth in the KCS
Annual  Report on Form 10-K for the year ended  December 31, 2003 filed with the
SEC accurately sets forth anticipated material capital expenditures  required to
maintain  in good  repair and  working  order the KCS Assets and to provide  for
material additions to KCS property, plant and equipment necessary to conduct the
business  of KCS as  described  in such SEC  Report.  KCS has  access to capital
resources  sufficient to fund such capital expenditures in the amount and at the
time required.


     SECTION 6.13 EMPLOYEE BENEFIT MATTERS.  Each employee benefit plan,  within
the meaning of Section 3(3) of the Employee  Retirement  Income  Security Act of
1974, as amended,  ("ERISA") that is maintained,  administered or contributed to
by KCS or any of its  Subsidiaries  for employees or former employees of KCS and
its  Subsidiaries  has been  maintained  in  compliance  with its  terms and the
requirements  of  any  applicable  statutes,   orders,  rules  and  regulations,
including,  but not limited to, ERISA and the Code. No  prohibited  transaction,
within  the  meaning of Section  406 of ERISA or Section  4975 of the Code,  has
occurred with respect to any such plan, excluding transactions effected pursuant
to a statutory or administrative  exemption. For each such plan which is subject
to the  funding  rules of Section  412 of the Code or Section  302 of ERISA,  no
"accumulated  funding  deficiency,"  as defined in Section 412 of the Code,  has
been incurred, whether or not waived, and the fair market value of the assets of
each such plan (excluding, for these purposes, accrued but unpaid contributions)
exceeds the present value of all benefits  accrued under such plan as determined
using reasonable actuarial assumptions.



     SECTION 6.14 LABOR AND OTHER EMPLOYMENT MATTERS.  There are no existing or,
to the Knowledge of KCS and its  Subsidiaries,  threatened,  labor disputes with
employees of KCS and its Subsidiaries which would be reasonably expected to have
a KCS Material Adverse Effect.


     SECTION 6.15 TAX. KCS and its Subsidiaries  have filed all federal,  state,
local and foreign tax returns which have been required to be filed and have paid
all Taxes shown thereon and all  assessments  received by them or any of them to
the extent that such Taxes have become due and are not being  contested  in good
faith,  except  as  would  not,  individually  or in the  aggregate,  have a KCS
Material  Adverse  Effect.  Except  as  disclosed  in  Section  6.15  of the KCS
Disclosure  Schedule,  there  is no Tax  deficiency  which  has  been  or  might
reasonably  be expected to be asserted or  threatened  against KCS or any of its
Subsidiaries,  except as would not, individually or in the aggregate, have a KCS
Material Adverse Effect.


     SECTION 6.16 PERMITS AND COMPLIANCE.

     (a)  Except as would  not,  individually  or in the  aggregate,  have a KCS
Material Adverse Effect, (i) each of KCS and its Subsidiaries owns, possesses or
has obtained all licenses,  permits,  certificates,  consents, orders, approvals
and other  authorizations  from, and has made all declarations and filings with,
all   federal,   state,   local  and   other   Governmental   Authorities,   all
self-regulatory  organizations  and all courts and other tribunals  necessary to
own or lease,  as the case may be, and to operate its properties and to carry on
its business as conducted as of the date hereof, and (ii) neither KCS nor any of
its Subsidiaries has received notice of any proceeding relating to revocation or
modification of any such license, permit, certificate,  consent, order, approval
or other authorization.

     (b) Except for normal examinations  conducted by any Governmental Authority
in the regular  course of the business of KCS and its  Subsidiaries  or as would
not reasonably be expected to have a KCS Material  Adverse  Effect,  since March
31, 2004, no Governmental Authority has provided written notice to KCS or any of
its Subsidiaries of any threatened proceeding or investigation into the business
or  operations  of  KCS or any of  its  Subsidiaries  or any of  their  members,
officers,  directors or  employees in their  capacity as such with KCS or any of
its Subsidiaries.

     (c)  Neither  KCS  nor  any  of its  Subsidiaries  is in  violation  of any
Applicable  Laws or orders of any  Governmental  Authority,  except as would not
reasonably  be  expected to have a KCS  Material  Adverse  Effect.  No event has
occurred  or exists  that would  (with or without  notice or lapse of time) give
rise  to any  obligation  on the  part  of  KCS  or any of its  Subsidiaries  to
undertake  or to bear all or any portion of the cost of any  remedial  action of
any nature which would  reasonably  be expected to have a KCS  Material  Adverse
Effect.

     SECTION 6.17  ENVIRONMENTAL  MATTERS.  KCS and each of its Subsidiaries (i)
are in  compliance  with,  and are not subject to any liability  under,  in each
case, all applicable



Environmental  Laws, (ii) hold all  Environmental  Permits  necessary to conduct
their  current  operations,  and (iii) are in compliance  with their  respective
Environmental Permits, except where the failure to hold or be in compliance with
such  Environmental  Permits  would not  reasonably  be  expected  to have a KCS
Material  Adverse Effect.  Neither KCS nor any of its  Subsidiaries has received
any written notice,  demand,  letter,  claim or request for information alleging
that KCS or any of its Subsidiaries may be in violation of, or liable under, any
Environmental  Law,  except where the preceding would not reasonably be expected
to have a KCS Material  Adverse Effect.  Neither KCS nor any of its Subsidiaries
(x) has entered  into or agreed to any consent  decree or order or is subject to
any judgment, decree or judicial order relating to compliance with Environmental
Laws,  Environmental  Permits  or  the  investigation,   sampling,   monitoring,
treatment,  remediation,  removal  or  cleanup  of  Hazardous  Materials  and no
investigation, litigation or other proceeding is pending or, to the Knowledge of
KCS and its Subsidiaries,  threatened with respect thereto,  except as would not
reasonably  be  expected to have a KCS  Material  Adverse  Effect,  or (y) is an
indemnitor  or has assumed  liability  in  connection  with any pending  demand,
notice,  claim,  or  other  allegation,  or to  the  Knowledge  of KCS  and  its
Subsidiaries, any claim threatened by or against any third-party relating to any
liability under any  Environmental  Law or relating to any Hazardous  Materials,
except  as would not  reasonably  be  expected  to have a KCS  Material  Adverse
Effect.  None of the real property  owned or leased or operated by KCS or any of
its  Subsidiaries  is listed or, to the  Knowledge of KCS and its  Subsidiaries,
proposed  for  listing  on any  list of  sites  maintained  by any  Governmental
Authority requiring  investigation or cleanup, except as would not reasonably be
expected to have a KCS Material Adverse Effect.


     SECTION  6.18  PROPERTIES.  Each of KCS and its  Subsidiaries  has good and
marketable title to, or valid and enforceable leasehold,  easement or concession
interests in, all of its properties and tangible assets necessary to conduct the
KCS Business as it is currently conducted, except where the failure to have such
title or  interest  would not  reasonably  be  expected  to have a KCS  Material
Adverse Effect. All such property and assets which constitute personal property,
equipment,  and fixtures, are in good condition and repair, normal wear and tear
excepted. Each of KCS and its Subsidiaries has complied in all material respects
with the terms of all  leases and  concessions  to which it is a party and under
which it is in occupancy,  and all such leases and concessions are in full force
and effect,  except in each case as would not  reasonably  be expected to have a
KCS Material Adverse Effect.

                                   ARTICLE 7

                       COVENANTS AND ADDITIONAL AGREEMENTS

     SECTION 7.1  INTERIM  GOVERNANCE  ARRANGEMENTS;  CONDUCT OF BUSINESS BY THE
GTFM GROUP.

     (a) TMM and KCS have  caused  the  By-laws  of GTFM and TFM to be  amended,
effective  upon execution of this  Agreement,  (i) to require that the number of
Directors of GTFM



and TFM shall not exceed,  respectively,  7 and 8 and that all actions  taken by
the Board of Directors of GTFM shall  require the approval of at least 5 members
of such  Board  and all  actions  taken by the Board of  Directors  of TFM shall
require  the  approval  of at least 5 members of such  Board (6, if the  Mexican
government elects a director), and that the tie-breaking vote of the Chairman of
GTFM and of TFM has been  eliminated,  and (ii) to require that 5 members of the
Board of  Directors  of GTFM and of TFM shall be  required  for a quorum for any
meeting of such Board of Directors,  and (iii) as otherwise set forth in Exhibit
J hereto (as so  amended,  the  "Amended  By-laws").  TMM and KCS have taken all
action  required by the  Amended  By-laws and the Laws of the UMS to appoint (A)
Messrs.  Jose  Vicente  Corta  Fernandez  and  Iker  Ignacio  Arriola  Penalosa,
respectively,  as Secretary and Alternate Secretary (PROSECRETARIO) of the Board
of Directors of GTFM and of the Board of  Directors of TFM  (replacing  Romualdo
Segovia and Jose Manuel  Munoz  Arteaga),  and (B)  Messrs.  Jose Manuel  Rincon
Gallardo Puron and Javier Garcia Sabate, as Examiners (COMISARIOS PROPIETARIOS),
and Mario Fernandez Davalos and Carlos Mendez Rodriguez,  as Alternate Examiners
(COMISARIOS SUPLENTES), of GTFM and TFM.

     (b)  During  the  period  from the date of this  Agreement  and  continuing
through the Closing  Date,  except as  expressly  permitted  or required by this
Agreement  (i) no Party shall cause,  or permit any action to be taken to cause,
the Amended  By-laws to be amended,  revoked or repealed  without the consent of
TMM and KCS,  (ii) no Party shall  permit TFM to  establish,  and will take,  or
cause to be taken,  all  action on their  part  necessary  (including  voting or
causing to be voted all the shares of capital  stock of GTFM and TFM) to prevent
TFM from  establishing,  any internal  committees or decision making rules which
have not been  approved in writing by KCS and TMM,  (iii) Sellers shall take, or
cause to be taken,  all action on their  part  necessary  to cause Jose  Vicente
Corta Fernandez and Iker Ignacio Arriola  Penalosa to remain,  respectively,  as
Secretary and Alternate  Secretary  (PROSECRETARIO) of the Board of Directors of
GTFM and TFM,  and (iv)  Sellers and KCS shall take,  or cause to be taken,  all
action on their part  necessary to cause Jose Manuel Rincon  Gallardo  Puron and
Javier Garcia Sabate to remain as Examiners (COMISARIOS PROPIETARIOS), and Mario
Fernandez  Davalos and Carlos Mendez Rodriguez to remain as Alternate  Examiners
(COMISARIOS SUPLENTES), of GTFM and TFM.

     (c)  After  the date of this  Agreement,  KCS  shall  create  a  transition
management team (the "Transition  Management Team") to facilitate the transition
to KCS of ownership  of the GTFM Group at the Closing.  KCS shall have the right
to  designate up to six (6) persons who shall serve until the Closing or earlier
termination  of this  Agreement  (the  "Transition  Managers") and shall pay the
salaries of, and direct  expenses  incurred  by, the  Transition  Managers.  The
management of GTFM and of TFM shall cooperate fully with the Transition Managers
with the goal of ensuring a smooth transition at the Closing Date. To facilitate
the  transition,  the  Transition  Managers  shall  have  access  as  they  deem
reasonably  necessary  to all books,  records,  and  meetings  of the  officers,
directors or other  employees,  agents or  representatives  of TFM and GTFM, and
each of TFM and GTFM shall cause each of their respective  officers,  directors,
and other employees,  agents and  representatives  to provide such access to the
Transition  Managers.  Notwithstanding  the foregoing,  the Transition  Managers
shall function only as observers  with respect to the foregoing,  and shall have
no  authority  to control  or direct the  actions of TFM or



GTFM or any of their  respective  directors,  officers,  employees,  agents,  or
representatives and shall not materially interfere with the normal operations of
TFM or GTFM.

     (d)  During  the  period  from the date of this  Agreement  and  continuing
through the Closing  Date,  except as  expressly  permitted  or required by this
Agreement,  the Sellers  and KCS shall use  commercially  reasonable  efforts to
cause  GTFM and each of its  Subsidiaries  to (x) carry on its  business  in the
ordinary  course  consistent  with past  practice,  subject to the  restrictions
imposed  by court  order  identified  in Section  5.18 of the Seller  Disclosure
Schedule and (y) use commercially  reasonable  efforts to preserve their present
business  organizations  and  relationships  (including  keeping  available  the
present  services of their  employees and preserving  their rights,  franchises,
goodwill and  relations  with their  customers and others with whom they conduct
business).

     (e)  During  the  period  from the date of this  Agreement  and  continuing
through  the  Closing  Date,  neither  TMM nor KCS shall  cause GTFM or any GTFM
Subsidiaries  to take any of the following  actions  without the express written
consent of the other Party:

          (i) amend or agree to amend their  charters  or bylaws (or  comparable
     organizational  documents) except as provided in Section 7.1(a) and (b), or
     merge with or into or  consolidate  with, or agree to merge with or into or
     consolidate with, any other Person,  subdivide or in any way reclassify any
     of their membership interests,  shares or any other ownership interests, or
     change or agree to  change in any  manner  the  rights of their  membership
     interests,  shares  or  any  other  ownership  interests  or  liquidate  or
     dissolve;

          (ii) (x)  issue,  sell,  redeem  or  acquire  any  share or any  other
     ownership  interest  or any  debt  security  in  GTFM  or  any of the  GTFM
     Subsidiaries,  (y) issue, sell or grant any option, warrant, convertible or
     exchangeable  Security,  right,  "phantom"  or  other  ownership  interest,
     subscription,  call,  unsatisfied  preemptive  right or other  agreement or
     right of any kind to purchase or otherwise  acquire  (including by exchange
     or conversion) any shares or any other  ownership  interests in GTFM or any
     of the GTFM  Subsidiaries,  or (z) enter into any Contracts,  agreements or
     arrangements  to issue,  redeem,  acquire  or sell any  shares or any other
     ownership interests in GTFM or any of the GTFM Subsidiaries;

          (iii) refinance existing indebtedness on materially different terms or
     incur  any  additional  indebtedness  for  borrowed  money in excess of $10
     million in the aggregate  (outstanding  at any one time),  or guarantee any
     liability,  obligation  or  indebtedness  (whether or not  currently due or
     payable) of any other Person or incur any GTFM Voting Debt;

          (iv)  except  as  required  by Law or IFRS,  make any  change in their
     accounting methods or practices for Tax or accounting  purposes or make any
     change in depreciation  or  amortization  policies or rates adopted by them
     for Tax or  accounting  purposes  or  make  any  material,  or  change  any
     existing,  Tax  election,  settle  any  pending  audits  or make  voluntary
     disclosure agreements or settle or compromise any Tax liability,  except in
     the case of any  such  liability  to the  extent  reserved  for on the GTFM
     Financial  Statements  or except to the extent such change would not have a
     GTFM Material Adverse Effect;



          (v) make any loan or advance or capital  contribution  to any of their
     Affiliates who are not members of the GTFM Group, or any of their officers,
     directors,  employees,  consultants, agents or other representatives (other
     than  reasonable and customary  travel advances made in the ordinary course
     of business consistent with past practice);

          (vi) sell, transfer,  lease,  license,  offer to sell, abandon or make
     any other  disposition of any of their assets or rights or grant or suffer,
     or  agree  to  grant  or  suffer,  any  Encumbrance  other  than  Permitted
     Encumbrances  on any of their assets or rights,  other than in the ordinary
     course of business  consistent  with past  practice  and not  exceeding  $1
     million in the aggregate;

          (vii) except as expressly permitted pursuant to subsection (xv) below,
     settle any claim,  action or  proceeding  involving any liability for money
     damages or any restrictions upon any of their  operations,  any of the GTFM
     Assets or the GTFM Business, except to the extent such settlement would not
     have a GTFM Material Adverse Effect;

          (viii) create,  renew, amend,  terminate or cancel, any Contract other
     than in the ordinary  course of business  consistent with past practice and
     providing for consideration  payable by or to GTFM or any GTFM Subsidiaries
     equal to or less than $1 million individually;

          (ix) enter into,  amend, or agree to enter into or amend any Contract,
     agreement or  arrangement  or any financial  transaction  with any of their
     officers, directors,  consultants, agents representatives,  (in the case of
     agents and  representatives,  other than in the ordinary course of business
     consistent  with past  practice),  or Affiliates who are not members of the
     GTFM Group; provided, however, that this clause (ix) shall not prohibit the
     performance of Contracts executed prior to the date of this Agreement,  the
     terms  of  which  have  been  disclosed  to KCS in  the  Seller  Disclosure
     Schedule;

          (x)  except  as set  forth  in  Section  2.1(a),  declare  or make any
     dividends or declare or make any other distributions of any kind payable to
     MM or any  Affiliate of MM (in any such case other than any other member of
     the GTFM Group) or to KCS or any Affiliate of KCS;

          (xi)  acquire or agree to  acquire in any manner any equity  interests
     in, or any  business  of,  any  Person or other  business  organization  or
     division thereof, including by way of merger, consolidation, or purchase of
     an equity interest or assets;

          (xii) enter  into,  amend,  modify or renew any Benefit  Plan or other
     written employment,  consulting, severance or similar employment agreements
     or  arrangements,  or grant any  salary or wage  increase  or  increase  in
     severance or termination  pay or increase any employee  benefit or hire any
     new  employee  for a  management  position,  except as may be  required  by
     Applicable Law, or in the ordinary course of business  consistent with past
     practice.

          (xiii) take any action to accelerate any material  rights or benefits,
     or make any material  determinations not in the ordinary course of business
     consistent with past practice,



     under any  collective  bargaining  agreement,  Benefit Plan or  employment,
     indemnification, severance or termination agreement;

          (xiv) make or incur any  capital  expenditures  in excess of those set
     forth in the GTFM 2004 Capital Budget, a copy of which has been provided to
     KCS,  or cease to make  capital  expenditures  in the  ordinary  course  of
     business consistent with past practice;

          (xv) cancel any indebtedness or waive any claims or rights in amounts,
     in each  case,  in excess  of  $500,000  ($10,000  in the case of claims or
     rights against any Affiliate) in the aggregate;

          (xvi)  accrue or pay any  bonuses  to any  employee  of the GTFM Group
     other  than  in the  ordinary  course  of  business  consistent  with  past
     practices,  except as set forth in  Section  7.1 of the  Seller  Disclosure
     Schedule; and

          (xvii)  authorize or agree (by Contract or otherwise) to do any of the
     foregoing.

     (f)  During  the  period  from the date of this  Agreement  and  continuing
through the Closing  Date,  neither  GTFM nor any GTFM  Subsidiary  shall pay or
incur any fees,  expenses or other costs to De Teresa  other than  amounts  with
respect to the Ongoing  Litigation  Matters,  which  amounts shall not aggregate
more than $50,000 per month (on average, computed as of the Closing Date for the
months or  portions  thereof  occurring  during such  period)  without the prior
written consent of KCS.

     SECTION 7.2 CONDUCT OF BUSINESS BY KCS AND ITS SUBSIDIARIES.

     (a)  During  the  period  from the date of this  Agreement  and  continuing
through the Closing  Date,  except as  expressly  permitted  or required by this
Agreement or with the prior  written  consent of TMM,  KCS and its  Subsidiaries
shall take no action that would reasonably be expected to prevent completion of,
or materially  delay,  the  Acquisition,  or change  materially the terms of the
Acquisition to the detriment of Sellers,  and take none of the following actions
if it would  materially  change the economic  benefits of the Acquisition to the
detriment of the Sellers:

          (i) amend  their  charters  or bylaws  (or  comparable  organizational
     documents),  or merge or consolidate  with, any other Person,  subdivide or
     reclassify their common stock or other ownership  interests,  or change the
     rights of their common stock or other  ownership  interests or liquidate or
     dissolve;

          (ii)  issue,  sell or  acquire  any  common  stock or other  ownership
     interest of any of the KCS Subsidiaries;

          (iii) make any loan or advance or capital contribution to any of their
     Affiliates  (other  than any KCS  Subsidiary),  or any of  their  officers,
     directors,  employees,  consultants, agents or other representatives (other
     than in the ordinary course of business consistent with past practice);



          (iv)  declare  or make any  dividends  or  declare  or make any  other
     distributions of any kind on or payable to the holders of its capital stock
     (other than regularly scheduled dividends payable on KCS Preferred Stock or
     New Series Preferred Stock);

          (v) acquire any equity interests in, or assets of any business of, any
     Person; or

          (vi)  authorize or agree to do any of the foregoing.

     SECTION 7.3 CONFIDENTIALITY. The Parties agree, and KCS agrees to cause the
Transition  Managers,  to continue to be bound by and comply with the provisions
set forth in the Confidentiality  Agreements,  and all amendments  thereto,  the
provisions of which are hereby incorporated  herein by reference,  to the extent
such provisions are not in conflict with the terms of this Agreement.

     SECTION 7.4 REGULATORY MATTERS; GOVERNING DOCUMENTS; THIRD-PARTY CONSENTS.

     (a) The Parties shall cooperate with each other and use their  commercially
reasonable efforts promptly to prepare and file all necessary documentation,  to
effect  all  applications,  notices,  petitions  and  filings,  and to obtain as
promptly  as  practicable  all  permits,   consents,   approvals,   waivers  and
authorizations of all Governmental Authorities,  third parties and other Persons
which are necessary or advisable to consummate the transactions  contemplated by
this Agreement and the Ancillary Agreements,  and requests for required consents
under any  contracts,  including  those referred to in Sections 5.5 and 6.3. KCS
and  Sellers  agree  to take all  reasonable  steps  necessary  to  satisfy  any
conditions or requirements  imposed by any Governmental  Authority in connection
with the consummation of the transactions contemplated by this Agreement,  other
than those  conditions or  requirements,  in the aggregate,  the satisfaction of
which are reasonably  likely to result in either a GTFM Material Adverse Effect,
a KCS Material Adverse Effect or a Seller Material  Adverse Effect.  The Parties
agree that, subject to the exclusive authority granted to KCS in Section 7.4(e),
they will consult with each other with respect to the  obtaining of all permits,
consents,  approvals and authorizations of all Governmental  Authorities,  third
parties and other Persons  necessary or advisable to  consummate  the Merger and
the  other  transactions  contemplated  by  this  Agreement  and  the  Ancillary
Agreements and each Party will keep the other Parties  apprised of the status of
matters  relating to  completion  of the  transactions  contemplated  herein and
therein.

     (b) The  Parties  shall  promptly  advise  each  other  Party  hereto  upon
receiving any  communication  from any  Governmental  Authority whose consent or
approval is required for consummation of the  transactions  contemplated by this
Agreement or the Ancillary Agreements.

     (c) Each Party will (i) within five (5)  business  days of the date of this
Agreement take all actions  necessary to make the filings required of such Party
or its  Affiliates  under the HSR Act (which filings shall include a request for
the early  termination of the waiting period under the HSR Act),  (ii) comply at
the  earliest  practicable  date with any  request  for  additional  information



received by such Party or its  Affiliates  from the Federal Trade  Commission or
the Antitrust Division of the Department of Justice pursuant to the HSR Act, and
(iii)  cooperate  with each other Party in  connection  with such other  Party's
filing under the HSR Act and in connection with resolving any  investigation  or
other  inquiry  concerning  the  transactions  contemplated  by  this  Agreement
commenced by either the Federal Trade  Commission  or the Antitrust  Division of
the  Department  of  Justice  or state  attorneys  general.

     (d) If the current authorization issued by the Mexican Antitrust Commission
(COMISION FEDERAL DE COMPETENCIA, the "CFC") shall have expired, KCS shall, in a
timely manner after the date of this Agreement, with the cooperation of TMM, (i)
file before the CFC the notification  required pursuant to Articles 20 and 21 of
the  Mexican  Antitrust  Law  (LEY  FEDERAL  DE  COMPETENCIA  ECONUMICA),  using
commercially  reasonable efforts to assure that the notification is accurate and
complete  and  contains  all  of  the  information   required  pursuant  to  the
regulations  of the  Mexican  Antitrust  Law  (REGLAMENTO  DE LA LEY  FEDERAL DE
COMPETENCIA  ECONOMICA) and other official forms therefor,  and (ii) assure that
any request for any  additional  information  that may be required or  otherwise
solicited by the CFC from KCS or any of its  Affiliates in connection  with such
notification  is  complied  with on a timely  basis.  Sellers  shall  use  their
reasonable best efforts to provide KCS with all information  regarding  Sellers,
GTFM and GTFM  Subsidiaries  requested by KCS, within the time requested by KCS,
in connection  with KCS's  obligations  under this Section  7.4(d).  The Parties
shall  cooperate  with each  other in  connection  with such  Mexican  antitrust
notification and in connection with resolving any investigation or other inquiry
concerning the transactions contemplated by this Agreement,  commenced by either
the CFC directly or as a result of any person filing any claim before the CFC in
connection therewith.

     (e)  If  the  current   authorization  issued  by  the  Foreign  Investment
Commission  ("FIC")  shall have  expired,  KCS shall have  exclusive  authority,
notwithstanding  any other provision of this Agreement,  to seek the approval of
the FIC to the  acquisition  of control of TFM  contemplated  in this  Agreement
("FIC Approval"). Without limiting the generality of the foregoing:

          (i) TMM shall,  and TMM shall assure that its  controlled  Affiliates,
     including TMMH and MM, and their respective employees, officers, directors,
     corporate secretaries, attorneys-in-fact and agents (collectively, the "TMM
     Parties")  shall,  cooperate with KCS to obtain as soon as possible the FIC
     Approval, including using their reasonable best efforts to provide KCS with
     all information  regarding Sellers,  GTFM and GTFM Subsidiaries that may be
     requested  by KCS,  within the time  requested by KCS, in  connection  with
     obtaining FIC Approval.

          (ii) TMM  shall  assure  that  none of the TMM  Parties  initiate  any
     communication,  formal  or  informal,  with  the  FIC or its  directors  or
     employees,  concerning  this  Agreement  or the FIC  Approval  or any other
     matter which could have an adverse effect on obtaining FIC Approval.



          (iii)  TMM  shall  assure  that any  communications  by any of the TMM
     Parties with the FIC  concerning  this  Agreement or the FIC Approval shall
     (i) be made solely at the express  written  request of Jose  Vicente  Corta
     Fernandez or an officer of KCS, and (ii) be made  through  Carlos  Galvan 0
     Duque or EMVA.  TMM shall assure that if the FIC  communicates  with any of
     the TMM  Parties,  that party  shall  promptly  notify Jose  Vicente  Corta
     Fernandez of the communication and shall direct the FIC to communicate with
     Carlos Galvan Duque or EMVA for a response, and that Carlos Galvan Duque or
     EMVA shall  consult with KCS before  responding to the FIC or providing any
     documents or other  information to the FIC concerning this Agreement or the
     FIC Approval.

          (iv) All references in this Section 7.4(e) to  communications  with or
     by the FIC shall include  communications with members of the FIC, including
     officers of the Ministry of Communication and Transport (SCT), the Ministry
     of   Economy,   and  the   Ministry   of  Finance  but  shall  not  include
     communications  in the ordinary course of business of TMM or the GTFM Group
     that do not concern this Agreement or the FIC Approval provided, that if in
     the course of such  communications the subject of this Agreement or the FIC
     Approval is raised,  no discussions  concerning those subjects are held and
     all  inquiries  related to such subjects are referred to Jose Vicente Corta
     Fernandez (unless Jose Vicente Corta Fernandez requests otherwise).

          (v) KCS  shall  keep  TMM  and  EMVA  informed,  on a  current  basis,
     regarding  any  communications  with the FIC and will  provide TMM with any
     materials received from the FIC concerning this Agreement or FIC Approval.

     (f) TMM and KCS shall  cause  GTFM and the GTFM  Subsidiaries  to use their
commercially  reasonable  efforts to obtain the  consents  of the lessor and the
lenders required under the Sublease of Locomotives  identified in Section 5.5 of
the Seller  Disclosure  Schedule,  to the change of control  resulting  from the
Acquisition.

     SECTION 7.5 STOCKHOLDER APPROVALS.

     (a) As soon as practicable following the date of this Agreement, but in any
event within sixty (60) days  following  the date of this  Agreement,  KCS shall
file  with the SEC an  amended  proxy  statement  for a special  meeting  of its
stockholders to be called to obtain the KCS  Stockholder  Approval and shall use
its commercially  reasonable efforts to obtain clearance of such proxy statement
from  the  SEC as soon as  practicable.  Promptly  after  the  definitive  proxy
statement  has been  cleared  by the SEC,  KCS will  call and give  notice  of a
special meeting of its stockholders,  cause a proxy statement and any amendments
thereto to be mailed to its  stockholders,  convene the  special  meeting of its
stockholders,  which KCS shall  endeavor  to hold  within  forty-five  (45) days
following  the mailing of such proxy  statement or the last of any  amendment or
supplement  thereto,  and seek to obtain the approval of its stockholders to the
matters set forth therein as requiring  such  approval,  including  recommending
such approval to its



stockholders, PROVIDED that the KCS Board may withdraw its recommendation of the
Acquisition  if it is advised by counsel to the effect  that  because of a third
party proposal  occurring after the date of the KCS Board's initial  approval of
the  Acquisition,  for the KCS Board to continue to  recommend  the  Acquisition
would be a breach of the KCS Board's fiduciary duties to the KCS stockholders.

     (b)  Within  forty-five  (45) days  following  the date of this  Agreement,
subject to  extension  for such  period of time as is  necessary  to receive any
clearances or approvals in connection with the Corporate Restructure Information
Memorandum  described  below,  TMM shall hold a meeting of its  stockholders  to
obtain the TMM  Stockholder  Approval  and the  shares of  capital  stock of TMM
subject to the Voting  Trust shall be voted at such meeting in  accordance  with
the terms of the Voting  Trust.  The Board of Directors  of TMM shall  recommend
such  approval to the TMM  stockholders.  TMM will provide to KCS a draft of the
relevant Corporate Restructure  Information  Memorandum that TMM must present to
the Mexican Banking and Securities  Commission  (COMISION NACIONAL BANCARIA Y DE
VALORES) and the Mexican  Stock  Exchange  (BOLSA  MEXICANA DE VALORES,  S.A. DE
C.V.) with respect to the approval of this  Agreement for review by KCS prior to
distribution  of such  memorandum  to the  shareholders  of TMM.  TMM  shall not
unreasonably  exclude from such memorandum any information  reasonably requested
by KCS for inclusion therein.

     (c) Immediately  following TMM Stockholder  Approval,  TMM shall obtain the
TMMH Stockholder Approval, and TMMH shall obtain the MM Stockholder Approval.

     SECTION 7.6 TAX MATTERS.

     (a) GTFM shall  prepare or cause to be  prepared  and shall  timely file or
cause to be timely filed all Tax Returns for GTFM and the GTFM  Subsidiaries for
all  periods  ending on or prior to the Closing  Date and for Tax  periods  that
begin  before  the  Closing  Date and end after the  Closing  Date (a  "Straddle
Period").

     (b) After the Closing Date, KCS, GTFM and their respective Subsidiaries, on
the one hand,  and TMM and its  Subsidiaries,  on the other hand,  shall provide
each other with such  cooperation and  information,  to the extent  available to
such Parties,  relating to TMM, GTFM and their  respective  Subsidiaries  as the
Parties may reasonably  request in (i) filing any Tax Return,  (ii)  determining
any  liability  for Taxes or a right to a Tax  refund,  or (iii)  conducting  or
defending any proceeding in respect of Taxes.

     (c) At the Closing,  TMM (to the extent available or in TMM's possession or
the possession of any TMM  Subsidiaries  or any of their  respective  directors,
officers, employees or representatives) shall deliver to GTFM and KCS shall, and
shall cause GTFM and the GTFM  Subsidiaries  to, retain for a period of five (5)
years following the Closing Date, all Tax Returns,  books and records (including
computer  files) of, or with  respect to the  activities  of,  GTFM and the GTFM
Subsidiaries  for all taxable periods from date of  incorporation to the Closing
Date for GTFM and all GTFM Subsidiaries.



     (d) After the  Closing,  KCS shall  control and manage any audit,  contest,
claim,  proceeding  or inquiry with respect to Taxes of GTFM and any of the GTFM
Subsidiaries for any taxable period ending on or before the Closing Date and for
any Straddle Period;  PROVIDED,  that KCS shall promptly provide TMM with notice
and information regarding any such audit, contest, claim, proceeding or inquiry.
KCS shall have the right,  after consultation with TMM, to settle or contest any
such audit, contest, claim, proceeding or inquiry.

     SECTION 7.7 INSURANCE. Each of the Sellers and KCS shall cause GTFM and the
GTFM  Subsidiaries to maintain in effect and pay all premiums due for the period
ending on the Closing Date with respect to any and all fidelity bonds maintained
by them on the date hereof and all GTFM Insurance Policies or procure comparable
replacement policies and bonds (or such replacement coverage as is obtainable on
a commercially  reasonable basis) and maintain such policies and bonds in effect
until the Closing Date.


     SECTION 7.8 NOTIFICATION OF CERTAIN  MATTERS.  Each Party to this Agreement
shall give  prompt  notice to the other  parties,  to the  extent  known by such
Party, of (i) the occurrence,  or failure to occur, of any event or existence of
any  condition  that has caused or could  reasonably be expected to cause any of
the  representations  or warranties of such Party contained in this Agreement to
be untrue or  inaccurate  in any material  respect at any time after the date of
this Agreement, up to and including the Closing Date, or (ii) any failure on its
part to comply with or satisfy, in any material respect, any covenant, condition
or  agreement  to be  complied  with or  satisfied  by  such  Party  under  this
Agreement.


     SECTION 7.9 FURTHER ASSURANCES.  Each Party to this Agreement shall execute
such  documents  and  other  papers  and  perform  such  further  acts as may be
reasonably required to carry out the provisions of this Agreement, the Ancillary
Agreements  and the  transactions  contemplated  hereby  and  thereby.  Upon the
request of the  Sellers or KCS, as the case may be, KCS or the Sellers and their
respective  Affiliates,  as the case may be, shall promptly  execute and deliver
such further  instruments  of  assignment,  transfer,  conveyance,  endorsement,
direction or authorization and other documents as the other Party may reasonably
request  to  effectuate  the  purposes  of  this  Agreement  and  the  Ancillary
Agreements.


     SECTION 7.10 THIRD-PARTY MATTERS.

     (a) From the date of this  Agreement  to the  Effective  Time,  (i) neither
Sellers, nor any of their respective Affiliates, officers, directors, employees,
members,  controlling  shareholders  (which  shall  include for this purpose all
signatories  to any of the  Ancillary  Agreements),  representatives  or agents,
including any investment  banker,  attorney or accountant engaged by any of them
shall,  directly or indirectly  solicit,  encourage or  facilitate  inquiries or
proposals,  or enter  into any  agreement,  with  respect  to,  or  initiate  or
participate in any negotiations or discussions with any Person  concerning,  any
acquisition or purchase of all or a substantial



portion  of the  assets  of, or of any  equity  interest  in,  or any  merger or
business   combination   with,  TMMH,  MM,  GTFM  or  any  of  their  respective
Subsidiaries,  and (ii) TMM shall not enter into any  agreement  with any Person
concerning any  acquisition or purchase of a controlling  equity interest in TMM
by any Competitor (as defined in the  Stockholders'  Agreement  which is part of
the  Ancillary  Agreements)  (each  acquisition,  purchase,  merger or  business
combination, a "TMM Acquisition Proposal"), or furnish any information regarding
a TMM  Acquisition  Proposal  to any such  Person.  Sellers  shall  notify  KCS,
providing full information, within twenty-four (24) hours if any TMM Acquisition
Proposal is received by, any such  information  is requested  from,  or any such
negotiations  or  discussions  are sought to be initiated  with,  TMM, TMMH, MM,
GTFM,  any of  their  respective  Affiliates,  officers,  directors,  employees,
members,  or  controlling  shareholders  (for  purposes  of this  Section  7.10,
collectively,  the  "Seller  Parties"),  or their  representatives  and  agents,
including any investment banker,  attorney or accountant engaged by any of them.
It is understood that any breach of the  restrictions  set forth in this Section
7.10 by any Seller Party or any investment banker,  attorney or other advisor or
representative  of the  Seller  Parties  shall be  deemed to be a breach of this
Section 7.10 by Sellers.

     (b) Sellers shall, and shall cause their respective  Affiliates,  officers,
directors,  employees, members,  shareholders,  representatives and advisors to,
immediately cease or cause to be terminated any existing  activities,  including
discussions or negotiations with any Parties, conducted prior to the date hereof
with respect to any TMM  Acquisition  Proposal and,  subject to the terms of any
existing   confidentiality   agreements,   shall  seek  to  have  all  materials
distributed  to  Persons  in  connection  therewith  by  Sellers or any of their
respective  Affiliates or advisors returned to TMM promptly.  Neither Sellers or
any of their respective Affiliates,  officers,  directors,  employees,  members,
shareholders,  representatives  or  agents,  including  any  investment  banker,
attorney or accountant  engaged by any of them,  shall amend,  modify,  waive or
terminate, or otherwise release any Person from, any standstill, confidentiality
or  similar  agreement  or  arrangement  currently  in effect  relating  to this
Agreement or the  transactions  contemplated  hereby.  Sellers shall cause their
respective Affiliates,  officers, directors,  employees, members,  shareholders,
representatives and agents to comply with the provisions of Sections 7.10(a) and
7.10(b).

     (c) From the date of this Agreement to the Effective Time, neither KCS, nor
any   of   its   respective   Affiliates,    officers,   directors,   employees,
representatives  or  agents,   including  any  investment  banker,  attorney  or
accountant  engaged  by any of  them  shall,  directly  or  indirectly  solicit,
encourage or  facilitate  inquiries or proposals,  or enter into any  agreement,
with respect to, or initiate or participate in any  negotiations  or discussions
with any Person concerning,  any acquisition or purchase of all or substantially
all of the assets of, or a  controlling  equity  interest in, KCS or KCSR or any
merger or business  combination  with KCS or KCSR which,  if  consummated  would
result  in a  Change  of  Control  of  KCS or  KCSR  (each,  a "KCS  Acquisition
Proposal"),  or furnish any information  regarding a KCS Acquisition Proposal to
any such  Person.  KCS shall  notify TMM,  providing  full  information,  within
twenty-four (24) hours if any KCS Acquisition  Proposal is received by, any such
information  is requested  from, or any such  negotiations  or  discussions  are
sought to be initiated  with, KCS, any of its respective  Affiliates,  officers,
directors,  employees  (for  purposes of this Section  7.10,  collectively,  the
"Buyer



Parties"), or their representatives and agents, including any investment banker,
attorney or accountant  engaged by any of them. It is understood that any breach
of the  restrictions  set forth in this  Section  7.10 by any Buyer Party or any
investment  banker,  attorney or other  advisor or  representative  of the Buyer
Parties shall be deemed to be a breach of this Section 7.10 by KCS.

     (d) KCS shall,  and shall cause its KCS  Affiliates,  officers,  directors,
employees,  representatives  and advisors to,  immediately  cease or cause to be
terminated any existing activities,  including  discussions or negotiations with
any  Parties,  conducted  prior  to the  date  hereof  with  respect  to any KCS
Acquisition  Proposal and, subject to the terms of any existing  confidentiality
agreements,  shall  seek  to  have  all  materials  distributed  to  Persons  in
connection  therewith  by KCS or its  Affiliates  or  advisors  returned  to KCS
promptly. Neither KCS nor any of its Affiliates, officers, directors, employees,
representatives  or  agents,   including  any  investment  banker,  attorney  or
accountant engaged by any of them, shall amend, modify,  waive or terminate,  or
otherwise  release any Person from, any standstill,  confidentiality  or similar
agreement or arrangement  currently in effect  relating to this Agreement or the
transactions  contemplated  hereby.  KCS shall cause its  Affiliates,  officers,
directors,  employees,  representatives and agents to comply with the provisions
of Sections 7.10(c) and 7.10(d).

     (e) Nothing set forth in this Section 7.10 shall  preclude the KCS Board or
TMM from  taking any  action in good  faith if it is  advised  by  counsel  that
failure to do so would be a breach of duty to its stockholders.

     SECTION 7.11  EFFORTS OF PARTIES TO CLOSE.  During the period from the date
of this  Agreement  through the Closing  Date,  each party  hereto shall use its
commercially  reasonable  efforts to fulfill  or obtain the  fulfillment  of the
conditions  precedent  to  the  consummation  of the  transactions  contemplated
hereby,  including the execution  and delivery of any  documents,  certificates,
instruments or other papers that are reasonably required for the consummation of
the transactions  contemplated  hereby.  During the period from the date of this
Agreement and continuing  through the Closing,  except as required by Applicable
Law,  no party to this  Agreement  shall  knowingly  take any action  which,  or
knowingly  fail to take any  action  the  failure  of which to be  taken,  could
reasonably  be  expected  to:  (i)  result  in any of  the  representations  and
warranties  set  forth in this  Agreement  on the part of the  party  taking  or
failing to take such action being or becoming  untrue in any  material  respect,
(ii)  result in any  conditions  to the Closing set forth in Article 8 not being
satisfied,  or (iii) result in a violation of any provision of this Agreement or
the Ancillary Agreements.


     SECTION  7.12  EXPENSES.  Except as  expressly  provided  otherwise in this
Agreement,  the Parties  shall each bear their  respective  direct and  indirect
expenses  incurred in connection  with the  negotiation  and preparation of this
Agreement  and  the  consummation  of the  Merger  and  the  other  transactions
contemplated hereby.


     SECTION 7.13 VAT CONTINGENCY PAYMENT.



     (a) On the  later to  occur  of (i) the  Closing  Date,  or (ii) the  Final
Resolution  of the VAT  Claim and Put,  KCS  shall pay the sum of $110  million,
reduced  (but not below zero) by: (i) any cash  payments  required to be made by
KCS, TFM or any of their respective  Affiliates  (including for purposes of this
Section 7.13, GTFM) to any agency of the Mexican  government to obtain the Final
Resolution of the VAT Claim and Put, net of any cash  payments  received by KCS,
TFM or such Affiliates  from any such agency related to the Final  Resolution of
the VAT Claim and Put,  (ii) the NOL Value,  (iii) 67% of the face amount of any
other Tax credits  under the Laws of the UMS which TFM or any of its  Affiliates
is required to apply,  use or relinquish to the Mexican  government  without any
value  received in exchange  therefor  (other than the value  resulting from the
Final  Resolution of the VAT Claim and Put),  to obtain the Final  Resolution of
the VAT Claim and Put,  and (iv) any Taxes  incurred  with  respect to the Final
Resolution of the VAT Claim and Put which are not offset by the NOL Value or the
other Tax credits referred to in Section  7.13(a)(iii),  and (v) the contingency
fees, in an amount of $1,500,000  each (but not any portion of the ongoing legal
fees and  expenses)  to the extent  they are  required to be paid by GTFM or any
GTFM  Subsidiary to (y) Rocha y Asociados,  S.C.,  or Zambrano,  Rocha y Espina,
S.C.  in  connection  with  the  successful  resolution  of the  Put and (z) CEA
Abogados,  S.C., in connection  with the successful  resolution of the VAT Claim
(the "VAT Contingency  Payment").  The VAT Contingency  Payment shall be paid as
follows:  (i) $35 million shall be paid in cash;  (ii) $35 million shall be paid
by  delivery  of that  number of shares of KCS  Common  Stock as,  valued at the
Volume  Weighted  Price,  shall be equal to $35  million,  and (iii) $40 million
shall be paid by  deposit  into  escrow  (the "VAT  Escrow"),  to be held and be
subject to reduction in accordance  with the terms of an escrow  agreement  (the
"VAT Escrow Agreement"), of a note in the principal amount of $40 million, which
shall be  converted at the fifth  anniversary  of the Closing  Date,  or at such
earlier date following the date that is two (2) years after the Final Resolution
of the VAT Claim and Put as KCS may, in its sole  discretion,  deem  appropriate
after consultation with a Tax consultant  knowledgeable  about Mexican Tax Laws,
into that number of shares of KCS Common Stock as, valued at the Volume Weighted
Price, shall be equal to the remaining  principal amount of the VAT Escrow as of
such date. Any reduction in the VAT Contingency Payment pursuant to this Section
7.13(a) shall be made in equal  proportions  in the amounts set forth in clauses
(i) through (iii) in the immediately preceding sentence. KCS may at its election
deliver shares of KCS Common Stock valued at the Volume  Weighted Price, in lieu
of any portion of the cash payment. The term "NOL Value" means 23% of the amount
of any  net  operating  losses  available  to TFM  and  its  Subsidiaries  under
applicable Tax Laws of the UMS which are relinquished to the Mexican  government
by TFM and its Affiliates without any other value received therefor. .

     (b)  KCS  shall  have  the  exclusive  right  to  manage  the  negotiation,
prosecution  and  settlement  of the VAT  Claim  and  any  extensions  or  other
modifications  of the  obligations  under  the Put and in  doing  so  shall  act
prudently  and in good faith.  As used in this section,  "prudently"  shall mean
acting as a reasonably prudent person would act in dealing with its own property
and without regard to the obligation to make the VAT  Contingency  Payment.  TMM
shall,  and shall  use its  reasonable  best  efforts  to cause its  Affiliates,
officers,  directors, agents and attorneys-in-fact to, cooperate with KCS in any
matters  reasonably  required  by KCS in  connection  with  these  negotiations;
PROVIDED  TMM and its  Affiliates  shall not be  required  to pay any amounts or



relinquish  any assets,  Tax credits or other Tax  attributes  or other items of
value.  TMM,  TMMH  and  MM,  hereby  release  KCS,  its  Affiliates,  officers,
directors, agents and attorneys-in-fact from any and all claims, liabilities and
obligations  arising out of or in connection with the negotiations or settlement
with the Federal  Government  of the UMS with  respect to the VAT Claim and Put,
except  for any  breach of the  obligation  to pay the VAT  Contingency  Payment
pursuant to Section 7.13(a) or any breach of its obligations  under this Section
7.13(b).

     SECTION 7.14 FINANCING FOR  ACQUISITION.  In connection  with the financing
for the  Acquisition  (including any amounts due under Section 7.13),  KCS shall
not,  and  shall  cause  its  Subsidiaries  not to,  enter  into  any  financing
arrangements   that   materially  (i)  restrict  the  ability  of  KCS  and  its
Subsidiaries to make any payments required to be made by this Agreement, or (ii)
deny or restrict in any material way any material  rights  granted to TMM or any
of its Subsidiaries under this Agreement or the Ancillary Agreements.

     SECTION 7.15 SUSPENSION AND DISMISSAL OF ACTIONS; RELEASES.

     (a) During the period from the date of this  Agreement  to the Closing Date
or the date of a termination in accordance with Article 9, none of KCS, TMM, any
controlled  Affiliate  of KCS  or  TMM,  or  any  officer,  director,  agent  or
representative  of  KCS  acting  on  behalf  of  KCS,  TMM or  their  respective
controlled Affiliates, including persons named by them as directors or alternate
directors  of GTFM or any  GTFM  Subsidiary,  shall  initiate,  file,  commence,
publicly  threaten  to  initiate,  file  or  commence,  or  continue  to  pursue
(collectively, "Commence") any proceedings previously filed, except as necessary
in the  opinion of their  counsel  to avoid  dismissal  or adverse  ruling or to
preserve or exercise  rights  arising  under this  Agreement,  before any court,
arbitral  panel,  regulatory  body or other  agency or body  which,  directly or
indirectly,  is based upon or arises out of, in whole or in part,  the  Original
Acquisition  Agreement or the  transactions  referred to therein  (collectively,
"Acquisition  Agreement  Claims")  or any claim or  allegation  with  respect to
actions  taken or meetings  held prior to the date of this  Agreement  by, or in
their capacity as, the directors, officers, employees, shareholders or agents of
TMM, KCS, or any Subsidiary of TMM or KCS (collectively, "Management Claims").

     (b) The  Acquisition  Agreement  Claims and the Management  Claims shall be
dismissed, or may be reinstated, as follows:

          (i) If  this  Agreement  is  terminated  in  accordance  with  Section
     9.1(a)(i), then the Acquisition Agreement Claims and the Management Claims,
     and if the termination is in accordance with Section 9.1(a)(vii), then only
     the Acquisition  Agreement Claims, shall be dismissed with prejudice.  Each
     Party shall make all filings necessary, and shall take all steps reasonably
     requested  by the other  Parties,  to effect such  dismissal on the date of
     such termination or as soon thereafter as possible, with each Party to bear
     its own costs and expenses.

          (ii) If the Agreement is terminated other than as described in Section
     7.15(b)(i),  then, upon termination,  the Acquisition  Agreement Claims and
     the Management  Claims which were suspended as described in Section 7.15(a)
     (and



     any other related claims  (whether as  cross-claims  or otherwise))  may be
     Commenced.

          (iii) If the  Agreement is not  terminated,  then on the Closing Date,
     the  Acquisition  Agreement  Claims  and the  Management  Claims  shall  be
     dismissed with prejudice.  Each Party shall make all filings necessary, and
     shall take all steps reasonably  requested by the other Parties,  to effect
     such dismissal on the Closing Date or as soon thereafter as possible,  with
     each Party to bear its own costs and expenses.

     (c) Within ten days after the date of this  Agreement,  the  Parties  shall
cause their  respective  litigation  counsel to inform the American  Arbitration
Association  of the  suspension of  proceedings in the matter styled KANSAS CITY
SOUTHERN AND KARA SUB, INC. V. GRUPO TMM, S.A.; TMM HOLDINGS,  S.A. DE C.V.; AND
TMM  MULTIMODAL,  S.A. DE C.V., No. 50 T 181 00514 03 (the  "Arbitration").  The
Arbitration  shall be held in abeyance,  but not dismissed or terminated,  until
the  Closing  Date.  Immediately  following  Closing  or, if this  Agreement  is
terminated  as  described  in  Section  7.15(b)(i)  on a  basis  which  requires
dismissal  of  Acquisition   Agreement   Claims,   immediately   following  such
termination,  the Parties  shall cause their  respective  litigation  counsel to
request  that the  Arbitration  be  terminated  and shall take all other  action
necessary to have the Arbitration  terminated as promptly as possible,  with the
Parties to bear their own costs and  expenses.  If this  Agreement is terminated
other than as  described  in Section  7.15(b)(i),  then any Party may  reinstate
proceedings in the Arbitration,  request a hearing and,  reinstate or pursue any
claims it may have in such proceeding (whether as a counter-claim or otherwise).

     (d) On the date of this  Agreement,  KCS and TMM,  each on behalf of itself
and its  controlled  Affiliates,  have  entered  into  Releases,  which shall be
deposited  in  the  Closing  Escrow  immediately  following  execution  of  this
Agreement.  The  Releases  shall  become  effective  on the Closing  Date and be
released from the Closing Escrow to the parties  entitled to receive them at the
Closing in accordance with the terms of the Closing Escrow Agreement;  PROVIDED,
that if this  Agreement is  terminated  as described in to Section  7.15(b) on a
basis which requires  dismissal of Acquisition  Agreement  Claims and Management
Claims,  then, at the effective time of such termination,  the Releases relating
to the claims to be dismissed  shall become  effective  and be released from the
Closing  Escrow to the Parties  entitled to receive them. The Parties agree that
the  Releases  shall not release  Sellers from any  indemnification  obligations
under Article 10 of this Agreement.

     (e) Within ten (10) days after  execution  of this  Agreement,  the Parties
will cause their respective litigation counsel to jointly file briefs before any
relevant authority to suspend, except for the Authority Litigation,  any pending
civil  litigation  either as a pre-judgment  measure (MEDIDA  CAUTELAR) or as an
Ordinary  Commercial  Proceeding as described in the "Mexican  Litigation  List"
attached  hereto as  Exhibit K. The  Parties  acknowledge  that the  suspensions
previously  obtained  in those  proceedings  (which  are in  effect  on the date
hereof) will remain in full force and effect during the suspension  period.  The
proceedings  described  in the  "Mexican  Litigation  List"  shall  be  held  in
abeyance, but not dismissed or terminated, until the Closing



Date. Upon Closing, or a termination of this Agreement as referred to in Section
7.15(b)(i),  the  Parties  will cause  their  respective  litigation  counsel to
jointly  request that,  except for the  Authority  Litigation,  the  proceedings
described in the "Mexican  Litigation  List" be terminated  in  accordance  with
Section  7.15(b)(i),  with the Parties to bear their own costs and expenses.  If
for any  reason  this  Agreement  is  terminated,  except for a  termination  in
accordance with Section  9.1(a)(i),  or if any Party  repudiates this Agreement,
then  any  Party  may  reinitiate  the  proceedings  described  in the  "Mexican
Litigation List."

     (f) Except for the Authority Litigation, the Parties agree to suspend after
admission  and  before  service  any  lawsuit  filed by such  Party  before  the
execution  of  this  Agreement  and  not  yet  admitted  and/or  served  on  the
defendant(s)  so  long  as  such  suspension  does  not  imply  the  loss of any
proceeding  rights such as the filing of any  deadline  brief.  Upon  Closing or
termination of this Agreement as referred to in Section 7.15(b)(i),  the Parties
will  cause  their  litigation  counsel  to  request  that such  proceedings  be
terminated  in  accordance  with  Section  7.15(b)(i).  If for any  reason  this
Agreement is terminated  otherwise than in accordance with Section 7.15(b)(i) or
if any Party  repudiates  this  Agreement,  then any Party  may  reinitiate  the
proceeding so admitted and suspended and not yet served.

     (g)  Since  the  "Amparo"  proceedings  in the UMS are  not  subject  to be
suspended by agreement of the Parties, the Parties acknowledge the right of each
Party to file any  briefs  or legal  resources,  such as QUEJA,  RECLAMACIUN  or
REVISIUN in order to preserve their rights against any Amparo  resolution or any
decree or  resolution  entered  into in any  Amparo  proceeding  related  to the
proceedings  described  in  the  "Mexican  Litigation  List,"  and  the  Parties
acknowledge  the right of the Party to file a new  Amparo  complaint  only:  (i)
against resolutions adopted before the Parties filed the suspension briefs after
the execution of this Agreement, and (ii) against those resolutions entered into
after the execution of this  Agreement so long as: (x) they are the  consequence
of the accomplishment of an Amparo  resolution,  or (y) they are entered into in
any appeal related to any proceeding listed in the "Mexican Litigation List."

     (h) At the time of the execution of this Agreement,  KCS and TMM shall take
all action necessary to cause GTFM, TFM and the other GTFM Subsidiaries to adopt
the Release  Resolutions and will not subsequently  take, or permit to be taken,
any action to amend,  repeal,  revoke, or otherwise change, in whole or in part,
such Release Resolutions.

     (i) With  respect to the  Authority  Litigation,  KCS will grant  releases,
which will be independent of the Releases  identified in Section  7.15(d) above,
to those persons identified in the Authority Litigation Agreement.

     SECTION 7.16 LEGAL REPRESENTATION  RELEASE. TMM shall deliver to KCS at the
Closing,  a full and complete release,  in the form attached hereto as Exhibit L
(the  "Legal  Representation  Release"),  of  GTFM,  TFM  and  their  respective
Subsidiaries  of any and all  claims for fees or  expenses  of De Teresa and its
Affiliates other than with respect to the Ongoing Litigation Matters.



                                   ARTICLE 8

                                   CONDITIONS

     SECTION  8.1  MUTUAL  CONDITIONS.  The  obligations  of each  party to this
Agreement to consummate the Acquisition  shall be subject to the satisfaction of
each of the following conditions, unless any such condition is waived by KCS and
TMM:

     (a) No order,  injunction or decree issued by any Governmental Authority of
competent  jurisdiction or other legal  restraint or prohibition  preventing the
consummation  of  the  Acquisition  shall  be  in  effect.  No  statute,   rule,
regulation,  order,  injunction  or decree  shall  have been  enacted,  entered,
promulgated or enforced by any Governmental Authority which prohibits, restricts
in any material manner or makes illegal consummation of the Acquisition;

     (b) Each of the consents,  waivers,  authorizations  and approvals required
from  all  Governmental   Authorities  shall  have  been  obtained  without  the
imposition of conditions or requirements,  in the aggregate, the satisfaction of
which by KCS or its Subsidiaries or TMM or its Subsidiaries is reasonably likely
to result in either a KCS  Material  Adverse  Effect,  a GTFM  Material  Adverse
Effect or a Seller Material Adverse Effect;

     (c) The Common Stock to be issued by KCS pursuant to this  Agreement  shall
have been approved for listing by the NYSE; and

     (d) The Release Resolutions,  the Releases,  the Dismissals,  the Ancillary
Agreements and the Consulting  Agreement  shall be eligible for release from the
Closing Escrow, subject only to the occurrence of the Closing.

     SECTION 8.2 CONDITIONS TO THE OBLIGATIONS OF KCS. The obligations of KCS to
consummate the Acquisition  shall be subject to the  satisfaction of each of the
following conditions, any of which may be waived in writing by KCS:

     (a)  For   purposes  of  this   Section   8.2(a),   the   accuracy  of  the
representations  and warranties of Sellers set forth in this Agreement  shall be
assessed  as of the  date of this  Agreement  and  shall be  assessed  as of the
Closing  Date  with the same  effect  as  though  all such  representations  and
warranties had been made again on and as of the Closing Date (provided, however,
that the  representations  and warranties that speak as of a specific date other
than the date of this  Agreement  shall  speak  only as of such  date)  and such
representations  and  warranties  shall  be true  and  correct  in all  material
respects;

     (b) Sellers shall have performed and complied in all material respects with
all agreements, covenants, obligations and conditions required by this Agreement
to be performed or complied with by them at or prior to the Closing Date;



     (c) TMM, TMMH and MM shall have delivered to KCS a certificate, dated as of
the Closing Date,  signed on their behalves by their  respective  Presidents and
Chief  Financial  Officers  confirming  their  satisfaction  of  the  conditions
applicable to them contained in Sections 8.2(a) and 8.2(b);

     (d)  There  shall  not exist  any  event or  combination  of  events  that,
individually  or in the  aggregate,  will (or would  reasonably  be expected to)
prevent any of the Sellers  from  performing  any of its  material  post-closing
obligations  under this  Agreement,  any Ancillary  Agreement or the  Consulting
Agreement at or after the Effective Time;

     (e) Since  December 31, 2003,  there shall not have been any GTFM  Material
Adverse  Effect  or  any  development  or  combination  of  developments   that,
individually or in the aggregate, has had or is reasonably likely to have a GTFM
Material  Adverse Effect,  of which KCS did not have Knowledge prior to the date
of this Agreement;

     (f) KCS  shall  have  received  copies of all  other  consents,  approvals,
authorizations,  qualifications  and orders of all Governmental  Authorities and
all other Persons party to Contracts  with any member of the GTFM Group that are
required in respect of the transactions to be consummated at the Closing,  other
than those  that if not  obtained  would not  individually  or in the  aggregate
reasonably be expected to have a GTFM Material  Adverse Effect or a KCS Material
Adverse  Effect and such consents and other items shall remain in full force and
effect as of the Closing Date;

     (g) KCS shall have received the KCS Stockholder Approval;

     (h) There  shall not be pending any  insolvency  or  bankruptcy  proceeding
(including  a CONCURSO  MERCANTIL  under the laws of the UMS)  against  TMM, MM,
TMMH, GTFM or TFM; and

     (i) The Legal  Representation  Release  shall have been duly  executed  and
delivered to KCS.

     SECTION 8.3  CONDITIONS TO THE  OBLIGATIONS  OF SELLERS.  The obligation of
Sellers to consummate the  Acquisition  shall be subject to satisfaction of each
of the following conditions, any of which may be waived in writing by TMM:

     (a)  For   purposes  of  this   Section   8.3(a),   the   accuracy  of  the
representations  and  warranties of KCS and the KCS Purchasers set forth in this
Agreement  shall be  assessed  as of the  date of this  Agreement  and  shall be
assessed  as of the  Closing  Date  with  the same  effect  as  though  all such
representations and warranties had been made again on and as of the Closing Date
(provided,  however,  that the representations and warranties that speak as of a
specific date other than the date of this Agreement  shall speak only as of such
date) and such  representations  and warranties shall be true and correct in all
material respects;



     (b) Each of KCS and the KCS Purchasers shall have performed and complied in
all material respects with all agreements, covenants, obligations and conditions
required by this Agreement to be performed or complied with by it at or prior to
the Closing Date;

     (c)  Each of KCS  and the KCS  Purchasers  shall  have  delivered  to TMM a
certificate,  dated as of the  Closing  Date,  signed on its behalf by its Chief
Executive  Officer and Chief Financial  Officer,  confirming the satisfaction of
the conditions contained in Sections 8.3(a) and 8.3(b);

     (d)  There  shall  not exist  any  event or  combination  of  events  that,
individually  or in the  aggregate,  will (or would  reasonably  be expected to)
prevent KCS from performing any of its material  post-Closing  obligations under
this Agreement or any Ancillary Agreement at or after the Effective Time;

     (e) Since  December  31,  2003,  there shall not have been any KCS Material
Adverse  Effect  or  any  development  or  combination  of  developments   that,
individually or in the aggregate,  has had or is reasonably likely to have a KCS
Material  Adverse Effect,  of which TMM did not have Knowledge prior to the date
of this Agreement; and

     (f) TMM  shall  have  received  copies of all  other  consents,  approvals,
authorizations,  qualifications  and orders of all Governmental  Authorities and
all other Persons party to contracts  with KCS or any of its  Subsidiaries  that
are required in respect of the transactions to be consummated at Closing,  other
than those that, if not obtained,  would not,  individually or in the aggregate,
reasonably be expected to have a KCS Material  Adverse  Effect and such consents
and other items shall remain in full force and effect as of the Closing Date.

                                   ARTICLE 9

                                   TERMINATION

     SECTION 9.1 TERMINATION.

     (a) This Agreement may be terminated prior to the Closing as follows:

          (i) by written consent of KCS and TMM;

          (ii)  by  KCS  or TMM if  any  order  of  any  Governmental  Authority
     permanently   restraining,   enjoining   or   otherwise   prohibiting   the
     consummation of the Acquisition shall have become final and  non-appealable
     or if any of the  approvals  of any  Governmental  Authority to perform the
     transactions herein, imposes any condition or requirement, the satisfaction
     of which is  reasonably  likely to result in either a KCS Material  Adverse
     Effect or a GTFM Material Adverse Effect;



          (iii) by KCS if any  condition  to the  obligations  of KCS  hereunder
     becomes incapable of fulfillment  through no fault of KCS and is not waived
     by KCS;

          (iv) by TMM if any condition to the  obligations of Sellers  hereunder
     becomes  incapable  of  fulfillment  through no fault of Sellers and is not
     waived by TMM;

          (v) by KCS if TMM  shall  have  experienced  a Change  of  Control  or
     publicly  announced  any  agreement or intention to complete a  transaction
     which, if completed,  would result in a Change of Control, or by TMM if KCS
     shall  have  experienced  a Change of  Control or  publicly  announced  any
     agreement or intention to complete a transaction which, if completed, would
     result in a Change of Control;

          (vi) by KCS or TMM if the Closing shall not have occurred by the close
     of business  on  December  31,  2005 (the  "Termination  Date");  PROVIDED,
     however,  that  the  Termination  Date  may be  extended  by KCS and TMM by
     written agreement; and

          (vii) by KCS or TMM if KCS shall not have obtained the KCS Stockholder
     Approval  at any  meeting  of its  stockholders  called  for  that  purpose
     (including any adjournments or continuances of such meeting).

     (b) The  termination of this Agreement shall be effectuated by the delivery
by the Party terminating this Agreement to the other Parties of a written notice
of such termination.  If this Agreement so terminates,  it shall become null and
void and have no further force or effect, except as provided in Section 9.2.

     SECTION 9.2 SURVIVAL AFTER TERMINATION.  If this Agreement is terminated in
accordance  with Section 9.1 and the  transactions  contemplated  hereby are not
consummated,  this  Agreement,  each  Ancillary  Agreement  and  the  Consulting
Agreement  (other  than any  Ancillary  Agreement  that this  Agreement  or such
Ancillary  Agreement  provides  shall  become  effective  in the  event  of such
termination)  shall become void and of no further force and effect,  without any
liability on the part of any party  hereto,  except for the  provisions  of this
Section 9.2 and Sections 7.3, 7.12, 7.15, 12.5, 12.11 and 12.13. Notwithstanding
the  foregoing,  nothing in this  Section  9.2 shall  relieve  any Party to this
Agreement of liability  for a breach of any  provision of this  Agreement or any
agreement  made as of the date  hereof or  subsequent  thereto  pursuant to this
Agreement.



                                   ARTICLE 10

                                 INDEMNIFICATION

     SECTION  10.1  SURVIVAL  OF  REPRESENTATIONS,   WARRANTIES  AND  COVENANTS;
EXCLUSIVE MONETARY REMEDIES.

     (a)  All  representations  and  warranties  in  this  Agreement  or in  any
instrument  executed and delivered in  fulfillment of the  requirements  of this
Agreement shall survive the Closing until April 1, 2007 (the "Expiration Date"),
except  that the  representations  and  warranties  of the  Sellers set forth in
Sections  5.10(b)(ii) and 5.10(b)(iii) with respect (in both subsections) to the
payment or  withholding  of Taxes,  and the  representations  and  warranties in
Sections  5.7(d)  and  5.11,  shall  survive  for  the  applicable   statute  of
limitations.  All  representations  and  warranties  of KCS  set  forth  in this
Agreement shall survive the Closing until the Expiration  Date. All covenants or
other agreements in this Agreement shall terminate at the Effective Time, except
the covenants in Sections 7.3, 7.6, 7.9, 7.12,  7.13,  7.14 and 7.15 which shall
survive the Closing indefinitely or for the period of the respective statutes of
limitation relating thereto.

     (b)  Notwithstanding  anything in this Agreement to the contrary,  the sole
and  exclusive  basis on which any Party may  recover  monetary  damages for any
breach of this  Agreement  by any other  Party,  whether  based  upon  breach of
representations and warranties,  breach of any covenant, or otherwise,  shall be
in accordance with the indemnification  provisions set forth in this Article 10,
and subject to the  limitations  and  exclusions  set forth in this  Article 10,
PROVIDED  however,  that such exclusive  remedies for monetary damages shall not
preclude  any  Party  from  pursuing  the  remedies  of  specific   performance,
injunctive  relief,  declaratory  judgment or any other  non-monetary  equitable
remedies available to such Party under Applicable Law.

     (c)  All  Losses  (as   defined   below)  for  which  any  Party  may  seek
indemnification  hereunder shall be net of (i) any insurance recoveries received
by such Party or to which such party is  entitled,  (ii) any amounts  which such
Party has  received  or is  entitled  to receive  from any third party under any
indemnification or other similar agreement,  and (iii) any Tax benefits accruing
to such Party as a result of the Losses.

     SECTION 10.2 INDEMNIFICATION BY SELLERS.

     (a) Subject to the  limitations  contained  in this  Article  10,  Sellers,
jointly and severally,  shall indemnify and hold KCS, the Surviving  Company and
each of their Subsidiaries (including GTFM and the GTFM Subsidiaries),  and each
of  their  respective  officers,  directors,  alternate  directors,   employees,
members,  stockholders,  agents and representatives ("KCS Indemnitees") harmless
from and against all losses, damages, liabilities, claims, demands, obligations,
deficiencies, payments, judgments, settlements, costs and expenses of any nature
whatsoever  (including  the costs and  expenses  of any and all  investigations,
actions,  suits,   proceedings,   demands,   assessments,   judgments,   orders,
settlements  and  compromises  relating  thereto,  and  reasonable   attorneys',
accountants',  experts'  and other fees and  expenses in  connection



therewith)  ("Losses")  resulting  from,  arising out of, or due to, directly or
indirectly, any of the following:

          (i)  Any  inaccuracy  or  misrepresentation  in,  or  breach  of,  any
     representation or warranty of Sellers contained in Article 5 (excluding, to
     avoid  duplication,  those which are the subject of  indemnification  under
     Section  10.5),  in any schedule or exhibit  delivered  hereunder by any of
     Sellers or in any certificates delivered by any of Sellers pursuant to this
     Agreement,  or any breach or nonfulfillment of any covenant or agreement of
     any of Sellers  contained  in this  Agreement,  in any  schedule or exhibit
     delivered  hereunder by any of Sellers or in any certificates  delivered by
     any of  Sellers  pursuant  to this  Agreement,  or any  claims,  causes  of
     actions,  rights  asserted or demands made by any third parties  (including
     any  Governmental  Authority)  arising  from  or  relating  to  any  of the
     foregoing;

          (ii) Any action (other than any actions  relating to the  arrangements
     with  DeTeresa  or which are the  subject  of the  Management  Claims,  the
     Acquisition  Claims or the Authority  Litigation) by or at the direction of
     any Person  released  pursuant to Section 7.15 hereof  (except for Larry M.
     Lawrence and the officers and directors of KCS) or the Authority Litigation
     Agreement,  or any  Designated  Person  that (x)  constituted  a fraud or a
     criminal  act  equivalent  to a felony  under the Laws of the  jurisdiction
     where the act occurred  (including  the burden of proof required under such
     Laws) or (y) occurred  during the period from April 20, 2003 to the date of
     this  Agreement  and  required  the  approval of KCS under the terms of the
     Original  Acquisition  Agreement,  which  approval  was  not  obtained  and
     resulted in Losses to GTFM or any GTFM  Subsidiary in excess of $1 million.
     The term "Designated Person" means any person identified on Exhibit P.

          (iii) Penalties and other termination  payments  aggregating more than
     $1 million  (including  any punitive,  special,  exemplary or other similar
     damages not incurred as a result of a wrongful  act by KCS)  required to be
     paid by the GTFM Group to terminate  any Contract (x) which was required to
     be,  but was  not,  identified  in  Section  5.7 of the  Seller  Disclosure
     Schedule and (y) which is actually  terminated  prior to the eighteen  (18)
     month  anniversary  of the Closing Date;  PROVIDED,  that prior to any such
     termination,  KCS  shall  give  notice  to the  Sellers  of its  desire  to
     terminate  the  Contract  and the  Sellers  shall  have the  right at their
     expense to  negotiate  with the other  parties to such  Contract  as to the
     termination of any such Contract, but the exercise of such right by Sellers
     shall not prejudice or prevent the exercise by KCS of its rights under this
     subsection (iii);

          (iv) Claims against TMM or any of its Affiliates for any breach in the
     performance  during the two year period  following  the Closing Date of any



     obligation of TMM or any of its Affiliates  under any Continuing  Affiliate
     Agreement; and

          (v)  Any  litigation,   arbitration,   mediation  or  other  adversary
     proceeding  brought  against any KCS  Indemnitee by De Teresa or any of its
     Affiliates,  other  than  for  fees or  expenses  incurred  in the  Ongoing
     Litigation Matters which do not exceed the amounts  contemplated in Section
     5.7(d).

     (b) Sellers'  indemnification  obligations under Section 10.2(a)(i) for any
inaccuracy or misrepresentation  in, or breach of any representation or warranty
regarding  GTFM  or  its  Subsidiaries,   except  for  the  representations  and
warranties set forth in Sections 5.7, 5.11 and 5.21,  shall be limited to 51% of
Losses  and  then  only to the  extent  such 51% of  Losses  amount  to,  in the
aggregate,  $5 million or more; PROVIDED, that for the purpose of computing this
limitation on Sellers' indemnification obligations, (i) Losses shall be computed
without regard to whether such Losses resulted in a GTFM Material Adverse Effect
(i.e.,  if a  representation  or warranty is qualified by GTFM Material  Adverse
Effect or words of similar import and, giving effect to any such  qualification,
there has been a breach of such representation or warranty, then the computation
of Losses as a result of such  breach  shall take  effect of the full  amount of
such Losses and not solely the amount that exceeded an amount that resulted in a
GTFM Material Adverse Effect), (ii) Losses shall exclude all Losses with respect
to any single  matter where the amount of the Losses  arising out of such matter
is less than  $50,000  (PROVIDED,  that in computing  such  amount,  all matters
arising  out of the same set of  facts  or  substantially  the same set of facts
shall  be  aggregated),  (iii) to the  extent  that the  calculation  of  Losses
depends,  in  whole  or in  part,  on any  matters  relating  to  the  financial
statements  of any  member of the GTFM  Group,  such  calculation  shall be made
exclusively  by  reference  to IFRS  and to  financial  statements  prepared  in
accordance  with IFRS, and (iv) Losses which could be subject to the limitations
of this subsection (b) but which also constitute  Losses that are not subject to
such  limitations,  shall be  deemed  not  subject  to the  limitations  in this
subsection (b).

     (c) Any claim against  Sellers for  indemnification  for Losses (except for
those relating to Taxes,  or the matters  referred to in Sections  10.2(a)(iii),
(iv) and (v) and any  Losses  arising  out of or  resulting  from any  action or
omission on the part of any Seller or its Affiliate that involved a crime, fraud
or willful  misconduct,) shall be satisfied  exclusively out of, and the maximum
aggregate  liability of all the Sellers for such Losses shall be limited to, the
assets held in the Indemnity  Escrow;  provided,  at KCS's  election,  any claim
against  Sellers for  indemnification  for Losses may be  satisfied  from assets
remaining in the Indemnity  Escrow.  Any claim for  indemnification  against the
assets in the Indemnity Escrow, unless such claim is not contested by TMM, shall
be made by KCS by instituting  arbitration  proceedings  in accordance  with the
dispute resolution procedures set forth in Section 12.11; PROVIDED, no more than
two (2) such  arbitration  proceedings  may be  instituted  and no such claim or
arbitration proceeding may be instituted later than April 1, 2007.



     (d)  Any  claim  for  indemnification  pursuant  to  Article  10  by a  KCS
Indemnitee  other than KCS shall be brought  only by and  through  KCS,  and not
directly by such other KCS Indemnitee.

     SECTION 10.3 INDEMNIFICATION BY KCS.

     (a)  Subject to the  limitations  contained  in this  Article 10, KCS shall
indemnify  and hold harmless  Sellers,  each of their  Subsidiaries  and each of
their respective officers, directors,  alternate directors,  employees, members,
stockholders, agents and representatives ("Seller Indemnitees") from and against
all Losses  resulting  from,  arising out of, or due to, directly or indirectly,
any  inaccuracy or  misrepresentation  in, or breach of, any  representation  or
warranty of KCS  contained  in Article 6, in any  schedule or exhibit  delivered
hereunder  by KCS or in any  certificates  delivered  by KCS  pursuant  to  this
Agreement,  or any breach or  nonfulfillment of any covenant of KCS contained in
this Agreement,  in any schedule or exhibit delivered hereunder by KCS or in any
certificates delivered by KCS pursuant to this Agreement,  or any claims, causes
of actions,  rights asserted or demands made by any third parties (including any
Governmental Authority) arising from or relating to any of the foregoing.

     (b)  KCS's  indemnification  obligations  under  this  Article  10 shall be
limited  to Losses  which  amount  to, in the  aggregate,  $10  million or more,
provided   that  for  the  purpose  of  computing   this   limitation  or  KCS's
indemnification  obligations,  Losses  shall be  calculated  without  regard  to
whether  such  Losses  involved  a  KCS  Material  Adverse  Effect  (i.e.,  if a
representation  or warranty is qualified by KCS Material Adverse Effect or words
of similar import and, giving effect to any such qualification, there has been a
breach of such  representation or warranty,  then the computation of Losses as a
result of such  breach  shall take  effect of the full amount of such Losses and
not solely the amount that  exceeded an amount that  resulted in a KCS  Material
Adverse Effect).  The limitation set forth in the first sentence of this Section
10.3(b) shall not be applicable to any Losses  arising out of or resulting  from
any  action or  omission  on the part of KCS or its  Affiliate  that  involved a
crime,  fraud or willful  misconduct.  Losses shall also exclude all Losses with
respect to any single matter where the amount of the Losses  arising out of such
matter are less than  $50,000  (provided,  that in computing  such  amount,  all
matters  arising out of the same set of facts or  substantially  the same set of
facts shall be aggregated).

     (c) Any claim for  indemnification  pursuant to this Article 10 by a Seller
Indemnitee  other  than TMM shall be  brought  only by and  through  TMM and not
directly by such other Seller Indemnitee.

     SECTION 10.4 PROCEDURES FOR THIRD-PARTY CLAIMS.

     (a) In order for a Person (the  "Indemnified  Party") to be entitled to any
indemnification  provided for under Section 10.2 or 10.3 in respect of,  arising
out of or involving a claim made by any Person  (other than another Party or its
Affiliate)  against  the  Indemnified  Party  (a  "Third-Party   Claim"),   such
Indemnified  Party  must  notify  the  indemnifying  party  in  writing  of  the
Third-Party  Claim promptly (but in any event not later than the second Business
Day in the case



of any litigation, arbitration or other adversary proceedings) following receipt
by such Indemnified Party of written notice of the Third-Party Claim;  PROVIDED,
however,   that  failure  to  give  such  notification   shall  not  affect  the
indemnification  provided  hereunder except to the extent the indemnifying party
shall have been actually  materially  prejudiced  (including with respect to the
defense of such Third Party-Claim) as a result of such failure.  Thereafter, the
Indemnified  Party  shall  deliver to the  indemnifying  party,  as  promptly as
practicable  following the Indemnified  Party's receipt  thereof,  copies of all
notices and documents (including court papers) received by the Indemnified Party
relating  to the  Third-Party  Claim that are not  separately  addressed  to the
indemnifying party.

     (b) If a  Third-Party  Claim is made  against  an  Indemnified  Party,  the
indemnifying  party shall be entitled to participate in the defense thereof and,
if it so chooses,  to assume the defense  thereof with  counsel  selected by the
indemnifying  party;  provided,  however,  that such  counsel is not  reasonably
objected to by the Indemnified Party.  Should the indemnifying party so elect to
assume the defense of a Third-Party  Claim, the indemnifying  party shall not be
liable to the Indemnified  Party for any reasonable legal expenses  subsequently
incurred by the Indemnified Party in connection with the defense thereof. If the
indemnifying  party assumes such defense,  the Indemnified  Party shall have the
right to participate in the defense  thereof and to employ  counsel,  at its own
expense,  separate from the counsel employed by the indemnifying party, it being
understood  that the  indemnifying  party shall control such defense;  PROVIDED,
however, that the indemnifying party shall bear the reasonable fees and expenses
of such  separate  counsel (i) if the  Parties to any such action or  proceeding
(including  impleaded  parties) include other Parties and representation of both
Parties would, in the reasonable  opinion of counsel for the Indemnified  Party,
be  inappropriate  due to a conflict of  interest,  or (ii) if the  indemnifying
party shall not have  employed  counsel  (other than counsel that is  reasonably
objected  to by the  Indemnified  Party)  within a  reasonable  time  after  the
Indemnified  Party has given notice of the institution of a Third-Party Claim in
compliance with Section 10.4(a).  The indemnifying party shall be liable for the
reasonable fees and expenses of counsel  employed by the  Indemnified  Party for
any period  during  which the  indemnifying  party has not  assumed  the defense
thereof,  PROVIDED,  however, that such counsel is not reasonably objected to by
the indemnifying party. If the indemnifying party chooses to defend or prosecute
a Third-Party Claim, all the Indemnified  Parties shall cooperate in the defense
or prosecution  thereof at the indemnifying  party's  expense.  Such cooperation
shall  include the  retention and (upon the  indemnifying  party's  request) the
provision  to the  indemnifying  party  of  records  and  information  that  are
reasonably relevant to such Third-Party Claim, and making employees available on
a mutually convenient basis to provide additional information and explanation of
any material provided  hereunder.  If the indemnifying party assumes the defense
of a Third-Party Claim, the Indemnified Party shall not admit any liability with
respect to, or settle,  compromise or discharge,  such Third-Party Claim without
the  indemnifying  party's prior  written  consent  (which  consent shall not be
unreasonably withheld or delayed). If the indemnifying party assumes the defense
of a Third-Party  Claim,  the  Indemnified  Party shall agree to any settlement,
compromise or discharge of a Third-Party  Claim that the indemnifying  party may
recommend and that by its terms obligates the indemnifying party to pay the full
amount of the  liability  in  connection  with  such  Third-Party  Claim,  which



releases the Indemnified  Party  completely in connection with such  Third-Party
Claim and that would not otherwise  materially  adversely affect the Indemnified
Party.

     SECTION 10.5 TAX INDEMNIFICATION.

     (a) Sellers shall,  jointly and  severally,  indemnify and hold each of the
KCS  Indemnitees  harmless  from and  against  51% of all Taxes  and  associated
penalties,  interest  and  similar  charges  of GTFM and the  GTFM  Subsidiaries
relating  to  periods  ending  prior to the  Closing  Date and that  part of any
Straddle  Period  ending on the  Closing  Date and which  exceed the amounts set
forth on the Tax Returns and reports  filed by GTFM or its  Affiliates  for such
periods which GTFM or any GTFM Subsidiary  becomes  obligated to pay pursuant to
this Section 10.5.

     (b) Sellers' indemnification  obligations under this Section 10.5 shall not
be  limited  to the  assets  held in the  Indemnity  Escrow  or the VAT  Escrow;
PROVIDED,  however,  that at the election of KCS, to the extent assets remain in
the Indemnity Escrow or the VAT Escrow, Sellers' indemnification obligations may
be satisfied therefrom.

     (c) None of the KCS Indemnitees,  GTFM or any GTFM Subsidiaries  shall make
any payment to any of the  Sellers or any other  Person or Persons on account of
any  adjustment  to any Tax  item of GTFM or the GTFM  Subsidiaries  for any Tax
period ending prior to the Closing  Date, or any portion of any Straddle  Period
ending on the  Closing  Date,  regardless  of whether  any such  payments  would
otherwise be payable  pursuant to any agreement  among any of the Sellers,  GTFM
and the GTFM  Subsidiaries  or any other  Person or Persons,  or pursuant to any
provision of Applicable Law relating to Tax consolidation or otherwise.

     (d) KCS shall  indemnify  and hold  Sellers  harmless  from and against all
Taxes of GTFM and the GTFM  Subsidiaries for periods beginning after the Closing
Date and the portion of any Straddle Period beginning after the Closing Date, as
to which  Sellers have no  indemnification  obligations  to the KCS  Indemnitees
under this Section 10.5.

     (e)  (i) In the event that any Mexican  governmental taxing authority shall
     assert  that  Taxes  are due (a "Tax  Assessment")  from  GTFM or any  GTFM
     Subsidiary  (the "GTFM  Taxpayer")  with  respect to any period  covered by
     Sellers'  indemnification  obligations  under this Section 10.5, GTFM shall
     give written notice thereof to TMM and shall consult with an advisor chosen
     by GTFM which is knowledgeable about Tax Laws of the UMS.

          (ii)  Following such  consultation,  GTFM shall give written notice to
     TMM of  GTFM's  determination,  including  the  reasons  therefor,  to pay,
     contest,  or pay and contest the Tax  Assessment.  If the Tax Assessment is
     $10,000 or more, the procedure set forth below in clauses (iii) through (v)
     of this Section 10.5(e) shall be followed. For Tax Assessments of less than
     $10,000, TMM shall be bound by GTFM's determination, without resort to that
     procedure or to arbitration pursuant to Section 12.11.

          (iii) If TMM  disagrees  with GTFM's  determination,  TMM shall advise
     GTFM in writing within ten (10) days after the notice from GTFM.  Following
     receipt of a notice of disagreement



     from TMM, GTFM shall promptly  consult with one of the advisors  identified
     in Exhibit O (a "Selected Tax Advisor") as to whether GTFM's  determination
     is reasonable  from the  perspective of the GTFM Taxpayer.  If the Selected
     Tax Advisor agrees that GTFM's  determination  was reasonable,  then Seller
     shall have an  indemnification  obligation  pursuant  to Section  10.5 with
     respect to such  matter and shall pay (or  advance,  in the case of payment
     and contest) 51% of the Tax Assessment upon demand from KCS.

          (iv) If the Selected Tax Advisor disagrees with GTFM's  determination,
     GTFM may consult another  Selected Tax Advisor.  If the second Selected Tax
     Advisor  agrees with GTFM's  determination,  then Sellers'  indemnification
     obligations  shall be as set forth above in subsection (iii). If the second
     Selected Tax Advisor  disagrees  with GTFM,  then Sellers'  indemnification
     obligations pursuant to this Section 10.5 with respect to such matter shall
     arise only when the Tax  Assessment  is finally  judicially  affirmed  by a
     final judgment  resolving the complaint (QUEJA) of a constitutional  appeal
     (aMPARO)  (a "Final  Tax  Resolution")  If the Tax  Assessment  is  finally
     judicially  rejected by a Final Tax Resolution,  then any amount of the Tax
     Assessment  paid or  advanced  by TMM  shall be  returned  to TMM  promptly
     following receipt thereof by GTFM from the Taxing Authority.

          (v) The  procedure  set  forth in this  Section  10.5(e)  shall be the
     exclusive  procedure  followed by the Parties  for  resolution  of disputes
     among the Parties  regarding Tax  Assessments,  and shall be in lieu of the
     dispute resolution  procedure set forth in Section 12.11. The Parties shall
     bear their own expenses  incurred under this Section  10.5(e),  except that
     the fees and expenses of the Selected Tax Advisors shall be borne by GTFM.

                                   ARTICLE 11

                                   DEFINITIONS

     SECTION  11.1  CERTAIN  DEFINED  TERMS.  As  used in  this  Agreement,  the
following terms shall have the following meanings:

     "Affiliate" shall mean any Person that directly,  or indirectly through one
or more  intermediaries,  Controls,  is Controlled by or is under common Control
with the Person specified.

     "Agreement"  shall  have the  meaning  set  forth in the  preamble  to this
Agreement.

     "Amendment  to  the  Trust   Agreement"  means  the  Amended  and  Restated
Irrevocable  Trust  Agreement  F-410 dated as of December 14,  2001,  among Jose
Francisco  Serrano Segovia,  Ramon Serrano Segovia,  Teresa Serrano Segovia,  as
settlors,  and GE Capital Bank, S.A.,  Instituciun de Banca Multiple, GE Capital
Grupo Financiero,  as trustee,  with the appearance of Citibank,  N.A., and with
the acknowledgement and agreement of TMM, TMMH and MM.

     "Ancillary  Agreements" shall mean the following agreements entered into as
of the date of this Acquisition  Agreement:  (i) Stockholders'  Agreement by and
among KCS, TMM,



TMMH and MM and certain other parties,  (ii) Registration Rights Agreement among
KCS,  TMM,  TMMH and MM and  certain  other  parties,  (iii) the  Marketing  and
Services Agreement;  (iv) the Releases,  (v) the Closing Escrow Agreement,  (vi)
the  Indemnity  Escrow  Agreement,  (vii) the VAT Escrow  Agreement,  (viii) the
Authority Litigation Agreement,  (ix) the Put Assignment Agreement,  and (x) the
agreement  between TMM and KCS relating to cooperation with respect to the Final
Resolution of the Vat Claim and Put.

     "Applicable Law" shall mean any Law applicable to KCS, TMM, TMMH, MM or any
of  their  respective  Affiliates,   properties,  assets,  officers,  directors,
employees or agents, as the case may be.

     "Authority  Litigation"  shall have the meaning set forth in the  Authority
Litigation Agreement.

     "Authority  Litigation  Agreement" shall mean that certain  agreement dated
contemporaneously   herewith  among  the  Parties   relating  to  the  Authority
Litigation claims.

     "Business Day" shall mean any day that is not a Saturday, a Sunday or other
day on which banks are required or  authorized by law to be closed in the United
States or the UMS.

     "Certificate  of Merger" shall have the meaning set forth in Section 3.1 of
this Agreement.

     "Change of Control" shall mean, with respect to such Person, the occurrence
of any of the  following  prior to the  Closing  Date:  (a) any Person or Group,
other than a Subsidiary or any employee  benefit plan (or any related  trust) of
such Person or a Subsidiary  of such  Person,  becomes the  beneficial  owner of
voting  Securities  representing 20% or more of the combined voting power of all
voting  Securities of such Person,  (b) the  individuals  who, as of the date of
this Agreement, constitute the board of directors of such Person (the "Incumbent
Directors")  cease for any reason to  constitute  at least 75% of the members of
such  board  of  directors   unless,  at  least  75%  of  the  individuals  then
constituting  such board of directors were nominated upon the  recommendation of
at least 75% of the Incumbent Directors or other directors so nominated,  or (c)
approval  by the  stockholders  of such  Person of any of the  following:  (1) a
merger, reorganization or consolidation  ("Consolidation") with respect to which
the  individuals and entities who were the respective  beneficial  owners of the
stock and voting Securities of the Person  immediately before such Consolidation
do not, after such Consolidation, beneficially own, directly or indirectly, more
than 80% of the  combined  voting power of the voting  Securities  of the Person
resulting from such  Consolidation in substantially the same proportion as their
ownership   immediately  before  such   Consolidation,   (2)  a  liquidation  or
dissolution  of such  Person,  or (3) the  sale or other  disposition  of all or
substantially all of the assets of such Person.

     "Code" shall mean the Internal  Revenue Code of 1986,  as amended,  and the
rules and regulations promulgated thereunder.

     "Concession"  shall mean the concession  title from the Mexican  government
held by TFM to provide  freight  transportation  services over its rail lines in
the UMS.



     "Confidentiality  Agreements"  shall  mean the  Confidentiality  Agreements
dated as of November 9, 2002,  by and  between KCS and TMM,  and all  amendments
thereto.

     "Consultant" shall mean the Company owned by Jose Francisco Serrano Segovia
that has entered into the Consulting Agreement with KCS.

     "Consulting Agreement" shall mean that agreement between Consultant and KCS
dated as of the date hereof.

     "Contracts" shall mean all written or oral contracts, agreements, evidences
of  indebtedness,  guarantees,  leases and  executory  commitments  to which any
member of the GTFM Group is a party (jointly or severally,  in whole or in part,
with  others  or  solely)  or by which  any of the GTFM  Assets  are  bound,  or
otherwise related to the GTFM Business.

     "Control" shall mean the ability  whether  directly or indirectly to direct
the affairs of another by means of ownership of assets or voting Securities,  or
by contract.

     "Designated Person" shall have the meaning set forth in Section 10.2(a)(ii)
of this Agreement.

     "Dismissals" shall mean the dismissals or terminations that are required in
accordance with the terms of this Agreement, of the Acquisition Agreement Claims
and the  Management  Claims  referred  to in Section  7.15(a),  the  Arbitration
referred  to in  Section  7.15(c)  and the  litigation  matters  referred  to in
Sections 7.15(e) and (f).

     "Encumbrance"  shall mean any lien,  pledge,  mortgage,  security interest,
claim,  charge,  easement,  limitation,  commitment,  encroachment,  restriction
(other  than a  restriction  on  transferability  imposed  by  federal  or state
securities laws) or other encumbrance of any kind or nature whatsoever  (whether
absolute or contingent).

     "Environmental Laws" shall mean any and all U.S. and Mexican federal, state
and local statutes,  laws,  regulations,  ordinances or rules in existence on or
prior to the Closing Date relating to (i) the  protection of the  environment or
natural  resources,  occupational  safety  and  health,  (ii) the  effect of the
environment or Hazardous Materials on human health, (iii) emissions,  discharges
or releases of Hazardous Materials into the environment, including, ambient air,
surface water,  groundwater or land, or (iv) otherwise  relating to the handling
of Hazardous  Materials or the  investigation,  clean-up or other remediation or
analysis thereof.

     "Environmental  Permit"  shall mean any  permit,  approval,  identification
number,   license  and  other   authorization   required  under  any  applicable
Environmental Law, including any  administratively  complete application that is
sufficient  to  serve  as an  authorization  for  an  activity  regulated  under
Environmental Law.



     "ERISA Affiliate" shall mean any Person who is in the same controlled group
of  corporations  or who is under common control with KCS (within the meaning of
Section 414 of the Code).

     "Exchange Act" shall mean the Securities  Exchange Act of 1934, as amended,
and the rules and regulations of the SEC thereunder.

     "Final  Resolution of the VAT Claim and Put" shall mean any  combination of
settlements,  resolutions,  agreements or other legal actions which collectively
result in KCS or any  Affiliate  or GTFM or any GTFM  Subsidiary  receiving  the
shares of TFM owned by the Mexican government, without any appeal or other claim
having been  brought  within one hundred  eighty  (180) days  thereafter  by any
governmental agency or other person, and the favorable  cancellation of the 1997
Tax audit  carried out by the Mexican Tax  Administration  Service  (SERVICIO DE
ADMINISTRACIUN  TRIBUTARIA)  as a result of which no additional Tax liability is
imposed in  connection  with the  amortization  or deduction of the value of the
Concession and Concession  related assets and the  termination or dismissal with
prejudice,  as applicable,  of all litigation  relating to the VAT Claim and the
Put, or which is  otherwise  agreed to in writing by KCS,  provided KCS receives
the consideration provided for in such written agreement.

     "GAAP" shall mean generally accepted  accounting  principles,  consistently
applied,  as used in the  United  States of America as in effect at the time any
applicable  financial  statements  were or are prepared or any act requiring the
application of GAAP was or is performed.

     "Governmental  Authority" shall mean any United States,  Mexican or foreign
government,  any  state or  other  political  subdivision  thereof,  any  entity
exercising  executive,  legislative,   judicial,  regulatory  or  administrative
functions of or pertaining to government,  including the SEC or any other United
States,  Mexican or foreign government  authority,  agency,  department,  board,
commission  or  instrumentality  of the United  States,  any state of the United
States or any political subdivision thereof or any foreign jurisdiction, and any
court,  tribunal or  arbitrator(s)  of  competent  jurisdiction,  and any United
States,  Mexican or foreign  governmental  or  non-governmental  self-regulatory
organization, agency or authority (including the NYSE).

     "GTFM Business" shall mean the business and operations of the GTFM Group in
the manner in which the same have been conducted  prior to the date hereof,  are
currently  being  conducted and are  currently  proposed by the GTFM Group to be
conducted, whether conducted by GTFM or any of its Subsidiaries.

     "GTFM Financial  Statements" shall mean those financial statements referred
to in Section 5.6.

     "GTFM  Form 20-F"  shall  mean the Annual  Report on Form 20-F for the year
ended December 31, 2003 filed by GTFM with the SEC.

     "GTFM Group" shall mean GTFM and the GTFM Subsidiaries, collectively.



     "GTFM  Material  Adverse  Effect" shall mean a change,  event or occurrence
that has had, or is reasonably  likely to have, a material adverse effect on the
business,  assets,  properties,  liabilities,  financial condition or results of
operations  of the GTFM Group taken as a whole  other than any change,  event or
occurrence resulting from (i) changes in the railroad industry in the UMS or the
United  States  generally,  (ii) changes in general  economic  conditions in the
United States or the UMS or the securities  markets in general,  (iii) terrorist
activities or the  commencement  or escalation of any war or armed  hostilities,
which do not  disproportionately  affect the GTFM Group, or (iv)  performance of
this Agreement in accordance with its terms.

     "GTFM  Subsidiaries"  shall  mean all of the  Subsidiaries  of GTFM  except
Mexrail, Inc. and its Subsidiaries.

     "GTFM Trademarks" shall mean all trademarks of GTFM and its Subsidiaries.

     "Hazardous  Materials"  shall mean (i) any petroleum,  petroleum  products,
byproducts or breakdown  products,  radioactive  materials,  asbestos-containing
materials or polychlorinated biphenyls, or (ii) any chemical,  material or other
substance  defined or  regulated  as toxic or  hazardous  or as a  pollutant  or
contaminant or waste under any applicable Environmental Law.

     "HSR  Act"  means   Section  7A  of  the  Clayton  Act  (Title  II  of  the
Hart-Scott-Rodino  Antitrust Improvements Act of 1976, as amended) and the rules
and regulations promulgated thereunder.

     "IFRS" shall mean International Financial Reporting Standards, consistently
applied  as used in the UMS as in  effect at the time any  applicable  financial
statements were or are prepared or any act requiring compliance with IFRS was or
is performed.

     "Income  Taxes"  shall  mean all  Taxes,  charges,  fees,  levies  or other
assessments imposed by any Taxing Authority and based on or measured solely with
respect to income or profits,  including  any  interest,  penalties or additions
attributable or imposed with respect thereto.

     "Intellectual   Property"   shall  mean  all  patents  and  patent  rights,
trademarks  and  trademark  rights,  trade names and trade name rights,  service
marks and service mark  rights,  service  names and service  name rights,  brand
names, inventions copyrights and copyright rights,  processes,  formulae,  trade
dress,  business and product names, logos,  slogans,  trade secrets,  industrial
models,  processes,  designs,  methodologies,  computer programs  (including all
source codes) and related documentation,  technical information,  manufacturing,
engineering and technical  drawings,  know-how and all pending  applications for
and registrations of patents, trademarks, service marks and copyrights.

     "Investment  Advisers Act" shall mean the Investment  Advisers Act of 1940,
as amended, and the rules and regulations of the SEC thereunder.

     "Investment  Company Act" shall mean the Investment Company Act of 1940, as
amended, and the rules and regulations of the SEC thereunder.



     "KCS Assets" shall mean the properties, assets, contracts and rights of any
kind, whether tangible or intangible, real or personal,  necessary to enable KCS
(prior to the Closing) and the Surviving  Company (after the Closing) to conduct
the KCS Business as presently conducted.

     "KCS Business" shall mean the  consolidated  business and operations of KCS
and its  Subsidiaries  in the manner in which the same have been conducted prior
to the date hereof,  are currently being conducted and are currently proposed by
KCS and its Subsidiaries to be conducted, whether conducted by KCS or any of its
Subsidiaries.

     "KCS  Disclosure  Schedule"  shall  have  the  meaning  set  forth  in  the
introduction to Article 6 of this Agreement.

     "KCS Material Adverse Effect" shall mean a change, event or occurrence that
has had,  or is  reasonably  likely to have,  a material  adverse  effect on the
business,  assets,  properties,  liabilities,  financial condition or results of
operations of KCS and its Subsidiaries,  taken as a whole other than any change,
event or occurrence  resulting from (i) changes in the railroad  industry in the
United  States  generally,  (ii) changes in general  economic  conditions in the
United States or the securities markets in general,  (iii) terrorist  activities
or the commencement or escalation of any war or armed hostilities,  which do not
disproportionately  affect KCS or its Subsidiaries,  or (iv) performance of this
Agreement in accordance with its terms.

     "KCS Stockholder Rights Plan" shall mean the Rights Agreement,  dated as of
September  19,  1995,  between KCS and Harris  Trust & Savings  Bank,  as Rights
Agent.

     "KCS Stock  Option  Plan" shall mean the 1991  Amended and  Restated  Stock
Option and Performance Award Plan, as amended and restated effective November 7,
2002.

     "Knowledge" of (a) KCS shall mean actual knowledge after reasonable inquiry
of Michael Haverty,  Ronald Russ, Gerald Davies, Larry Lawrence,  Jay Nadlman or
any other  executive  officer of KCS, and (b) TMM,  TMMH or MM shall mean actual
knowledge  after  reasonable  inquiry by Jose Segovia  Serrano,  Javier  Segovia
Serrano,  Juan Fernandez Galeazzi,  Jacinto Marina Cortes, Mario Mohar Ponce, or
any executive officer of TMM, TMMH or MM.

     "Law"  shall  mean any U.S.,  Mexican or  foreign  federal,  state or local
statute, law (whether statutory or common law), ordinance,  rule, administrative
interpretation,   regulation,  order,  writ,  injunction,  directive,  judgment,
decree,  policy,  guideline or other requirement or arbitration award or finding
(including   those  of  the  NYSE  or  any  other   applicable   self-regulatory
organization).

     "Losses"  shall  have the  meaning  set forth in  Section  10.2(a)  of this
Agreement.

     "MM Subsidiaries" shall mean GTFM and the GTFM Subsidiaries.

     "NYSE" shall mean the New York Stock Exchange, Inc.



     "Permitted  Encumbrance"  shall  mean  (i)  liens  reflected  in  the  GTFM
Financial  Statements,  (ii)  liens  imposed  by  operation  of law  and not for
borrowed  money,  such  as  materialmen's,  mechanics',  workers',  repairmen's,
employees',  carriers',  vendors'  warehousemen's  and other like liens that are
insignificant,  individually and in the aggregate,  to the operation of the GTFM
Business,  and (iii) liens  incurred in the ordinary  course of business and not
for borrowed money that are insignificant, individually and in the aggregate, to
the operation of the GTFM Business.

     "Person" shall mean any individual, firm, corporation, partnership (limited
or general),  limited liability company,  joint venture,  association,  trust or
other entity.

     "Put"  shall  mean the  right  (currently  being  contested  through  legal
proceedings)  of the Federal  Government of the United  Mexican States under the
Put Agreement to compel purchase of the shares of TFM held by the government.

     "Put Agreement" shall mean the Agreement between the Federal  Government of
the United Mexican States, GTFM, TMM and KCS, dated June 9, 1997.

     "Put  Assignment  Agreement"  shall mean the  Agreement of  Assignment  and
Assumption of Rights,  Duties and Obligations among TMM, KCS and TFM dated as of
the date of this Agreement.

     "Put Purchase Price" shall mean the purchase price for the 20% of TFM stock
held by the Federal  Government of the United Mexican States,  as defined in the
Put Agreement and calculated under the Twenty-Sixth Clause of the Stock Purchase
Agreement.

     "Releases" shall mean the mutual Release agreements,  dated the date hereof
(which shall become effective at the Closing or as otherwise  specified therein)
between KCS,  TMM,  certain of their  respective  Affiliates  and other  parties
identified therein.

     "Release  Resolutions"  shall mean the  resolutions,  in the form  attached
hereto as Exhibit C, adopted by the  respective  Boards of Directors  identified
therein.

     "SEC" shall mean the Securities and Exchange Commission,  and any successor
thereto.

     "Securities" shall mean any securities as defined in the Securities Act.

     "Securities Act" shall mean the Securities Act of 1933, as amended, and the
rules and regulations of the SEC thereunder.

     "Securities  Laws" shall mean the  Securities  Act, the  Exchange  Act, the
Investment Company Act, the Investment  Advisers Act, all applicable state "blue
sky" laws, all applicable Mexican and foreign securities laws, and the rules and
regulations promulgated thereunder.



     "Seller Material  Adverse Effect" shall mean a change,  event or occurrence
that has had, or is reasonably  likely to have, a material adverse effect on the
business,  assets,  properties,  liabilities,  financial condition or results of
operations  of Sellers and their  Subsidiaries,  taken as a whole other than any
change,  event or occurrence resulting from (i) changes in the railroad industry
in the United States generally,  (ii) changes in general economic  conditions in
the  United  States  or the  securities  markets  in  general,  (iii)  terrorist
activities or the  commencement  or escalation of any war or armed  hostilities,
which do not disproportionately  affect a Seller or any of its Subsidiaries,  or
(iv) performance of this Agreement in accordance with its terms.

     "Subsidiary"  of a Person  shall mean any other Person more than 50% of the
voting  stock  (or of any  other  form of other  voting  or  controlling  equity
interest  in the  case  of a  Person  that is not a  corporation)  of  which  is
beneficially  owned by the Person  directly  or  indirectly  through one or more
other Persons.

     "Tax" and  "Taxes"  shall mean all U.S.  and Mexican  federal,  provincial,
territorial,  state,  municipal,  local, foreign or other taxes, imposts, rates,
levies,  assessments,  contributions and other similar charges (and all interest
and  penalties  thereon  and  additions  thereto  imposed  by  any  Governmental
Authority),  including  all income,  excise,  franchise,  gains,  capital,  real
property, goods and services,  transfer,  value added, gross receipts,  windfall
profits,  severance,  ad valorem,  personal  property,  production,  sales, use,
license,  stamp,  documentary stamp,  mortgage recording,  employment,  payroll,
social  security  (IMSS),  housing,  unemployment,   disability,   estimated  or
withholding taxes, housing fund (Infonavit), retirement fund contributions (SAR)
and all customs and import duties.

     "Tax  Return"  shall  mean  any and  all  returns,  reports,  declarations,
information statements,  schedules or other documents required to be provided by
GTFM or any of its  Subsidiaries  with  respect  to  Taxes  to any  Governmental
Authority or Tax authority or agency, whether U.S., Mexican or foreign.

     "Taxing  Authority" shall mean any government  authority,  U.S., Mexican or
other, having jurisdiction over the assessment,  determination,  collection,  or
other imposition of Taxes.

     "TFM" shall mean TFM, S.A. de C.V.

     "U.S." means the United States of America.

     "VAT" means the Mexican value added tax.

     "VAT Claim" means TFM's claim  against the Mexican  Treasury for the refund
of a VAT payment in the original  principal amount of 2,111,111,790  pesos, plus
indexation and interest.

     "VAT Payment" means the shares or cash compensation  received by TFM or its
designee from the Mexican government on the VAT Claim.



     "Volume  Weighted  Price" means the average trading price per share for KCS
Common  Stock on the NYSE,  as reported on  Bloomberg  (VAP  function),  for the
twenty (20) consecutive trading days immediately  preceding the later of (i) the
Closing  Date, or (ii) the date of the public  announcement  by KCS of the Final
Resolution of the VAT Claim and Put.

     "Voting Trust" means the  irrevocable  Trust Agreement dated as of December
15, 2004, among Jose Francisco  Serrano Segovia,  Ramon Serrano Segovia,  Teresa
Serrano Segovia,  and Servicios Directivos Servia, S.A. de C.V., as settlors and
beneficiaries,  and Ixe Banco,  S.A.,  Instituciun de Banca Multiple,  Ixe Grupo
Financiero,  Division  Fiduciaris,  as  trustee,  with the  acknowledgement  and
agreement of TMM, TMMH and MM.

                                   ARTICLE 12

                                  MISCELLANEOUS

     SECTION 12.1 AMENDMENTS; WAIVER. This Agreement may not be amended, altered
or modified  except by written  instrument  executed by KCS and TMM. KCS and TMM
may amend this Agreement without notice to or the consent of any other Party and
any  third  party.  Any  agreement  on the part of KCS and TMM to waive  (i) any
inaccuracies  in any  representation  and  warranty  contained  herein or in any
document,  certificate or writing delivered  pursuant hereto, or (ii) compliance
with any of the agreements,  covenants or conditions  contained herein, shall be
valid  only if set forth in an  instrument  in  writing  signed on behalf of the
party  against  whom  the  waiver  is to be  effective.  No  such  waiver  shall
constitute  a waiver of, or estoppel  with respect to, any  subsequent  or other
inaccuracy,  breach or failure to strictly  comply with the  provisions  of this
Agreement. Any delay or omission on the part of KCS or TMM to exercise any right
hereunder  shall not in any manner impair the exercise of any right  accruing to
it hereafter.


     SECTION  12.2  ENTIRE  AGREEMENT.  This  Agreement  (including  the  Seller
Disclosure Schedule, the KCS Disclosure Schedule, any other exhibits, schedules,
certificates,  lists and documents  referred to herein, and any other agreements
or  documents  executed  by the  Parties  simultaneously  herewith  or  pursuant
thereto),   the  Ancillary   Agreements,   the  Consulting   Agreement  and  the
Confidentiality  Agreements shall constitute the entire agreement of the Parties
with  respect to the  subject  matter  hereof and thereof and to the extent this
Agreement  (as  defined  in this  Section  12.2) is in  conflict  with any prior
agreements  or  understandings,  written  and  oral,  among  the  Parties,  this
Agreement shall prevail.  Upon Closing, the following agreements shall be deemed
terminated  notwithstanding  any provisions  therein to the contrary:  Letter of
Intent,  dated  August  28,  1995,  between  TMM  and  KCS;  the  Joint  Venture
Implementation  Agreement,  dated  September  7, 1995,  between TMM and KCS; the
undated Letter of Understanding between TMM and KCS; the Shareholders  Agreement
dated as of May 1997, by and among KCS, Caymex,  Grupo Servia, S.A. de C.V., TMM
and MM; Management  Services  Agreements between KCS and TFM, dated May 9, 1997,
and between TMM and TFM, dated May 9, 1997 (as such agreements have been amended
and extended from time to time).



     SECTION 12.3 INTERPRETATION.

     (a) The Recitals, Exhibits and Schedules to this Agreement are incorporated
by  reference  into,  and are  deemed  to be part  of,  this  Agreement.  When a
reference is made in this  Agreement to Sections,  Exhibits or  Schedules,  such
reference shall be to a Section of or an Exhibit or a Schedule to this Agreement
unless otherwise indicated. The table of contents and headings contained in this
Agreement  are for  reference  purposes only and shall not affect in any way the
meaning or  interpretation  of this  Agreement.  Whenever  the words  "include,"
"includes" or "including" are used in this Agreement, they shall be deemed to be
followed by the words "without  limitation."  The word "shall" when used in this
Agreement is a word of mandate,  construed as "must."  Unless  expressly  stated
otherwise,  all references to "Dollars" or "$" in this Agreement shall mean U.S.
dollars.

     (b) Each of the Seller Disclosure  Schedule and the KCS Disclosure Schedule
shall set forth items the disclosure of which is necessary or appropriate either
in response to an express disclosure requirement contained in a provision hereof
or as an exception to one or more of such Party's  representations or warranties
or one or more of its covenants contained in this Agreement, in each case making
reference  to  the  particular  subsection  of  this  Agreement  requiring  such
disclosure or to which such exception is being taken.

     (c) This  Agreement is written in the English  language.  The Parties waive
any rights they may have under  Applicable  Law to have this Agreement or any of
the Ancillary  Agreements  made in any language other than English;  PROVIDED to
the extent that any such waiver  shall not be valid under  Applicable  Law,  the
Parties agree that in case of any ambiguity or contradiction between the English
language  version of this Agreement and any translation into any other language,
that the English language version shall control.

     SECTION 12.4 SEVERABILITY. Any term or provision of this Agreement which is
invalid or unenforceable in any jurisdiction shall, as to that jurisdiction,  be
ineffective  to the  extent  of  such  invalidity  or  unenforceability  without
rendering  invalid or  unenforceable  the remaining terms and provisions of this
Agreement or affecting  the  validity or  enforceability  of any of the terms or
provisions of this Agreement in any other jurisdiction. If any provision of this
Agreement is so broad as to be unenforceable, the provision shall be interpreted
to be only so broad as is enforceable.

     SECTION 12.5 NOTICES.  Unless otherwise  provided  herein,  all notices and
other communications  hereunder shall be in writing and shall be deemed given if
(a)  delivered  in  person,   (b)   transmitted   by  facsimile   (with  written
confirmation),   or  (c)   delivered  by  an  express   courier   (with  written
confirmation)  to the  Parties  at the  following  addresses  (or at such  other
address for a Party as shall be specified by like notice):



         If to Sellers:

         Grupo TMM, S.A.,
         Avenida de la Cuspide, No. 4755
         Colonia Parques del Pedregal
         14010 Mexico, D.F.
         Attention:  Corporate Secretary

         CT Corporation
         111 Eighth Avenue
         New York, New York 10011

         With a copy (which shall not constitute notice) to:

         Milbank, Tweed, Hadley & McCloy LLP
         One Chase Manhattan Plaza
         New York, New York 10005
         Attention:  Thomas C. Janson, Esq.


         If to KCS:

         By U.S. Mail:
         Kansas City Southern
         P.O. Box 219335
         Kansas City, MO 64121-9335
         Attention:  Senior Vice President and General Counsel

         By Delivery Service:
         Kansas City Southern
         427 West 12th Street
         Kansas City, MO 64105
         Attention:  Senior Vice President and General Counsel

         With a copy (which shall not constitute notice) to:

         Sonnenschein Nath & Rosenthal LLP
         4520 Main Street, Suite 1100
         Kansas City, MO 64111
         Attention:  John F. Marvin, Esq.

Any Party hereto may from time to time change its address for notices under this
Section 12.5 by giving at least ten (10) days' notice of such changed address to
the other Parties hereto.



     SECTION 12.6 HEADINGS. The headings herein are for convenience only, do not
constitute a part of this  Agreement  and shall not be deemed to limit or affect
any of the provisions of this Agreement.

     SECTION  12.7 BINDING  EFFECT;  PERSONS  BENEFITING;  NO  ASSIGNMENT.  This
Agreement  shall  inure to the  benefit of and be binding  upon the  Parties and
their  respective  successors  and assigns.  No  provision of this  Agreement is
intended or shall be  construed  to confer upon any entity or Person  other than
the Parties and their  respective  successors  and permitted  assigns any right,
remedy or claim under or by reason of this  Agreement or any part  hereof.  This
Agreement  may not be assigned by any of the Parties  without the prior  written
consent of the other Parties.

     SECTION 12.8 NO THIRD PARTY  BENEFICIARIES.  This Agreement is intended for
the benefit of the Parties hereto and their respective  permitted successors and
assigns and is not for the benefit of, nor may any  provision of this  Agreement
be enforced by, any other Person.

     SECTION 12.9  COUNTERPARTS.  This  Agreement may be executed in two or more
counterparts,  each  original or facsimile of which shall be deemed an original,
but all of which taken together shall constitute one and the same agreement,  it
being understood that all of the Parties need not sign the same counterpart.

     SECTION 12.10 SPECIFIC ENFORCEMENT.  The Parties acknowledge and agree that
irreparable  damage would occur in the event that any of the  provisions of this
Agreement  were not performed in accordance  with their  specific  terms or were
otherwise  breached.  It is  accordingly  agreed that each of the Parties hereto
shall be entitled to an injunction or injunctions to prevent or cure breaches of
the  provisions of this Agreement by the other and to enforce  specifically  the
terms and  provisions  of this  Agreement,  this being in  addition to any other
remedy to which they may be  entitled by law or equity.  The Parties  agree that
each  Party  shall have the right to apply for any of the  prejudgment  measures
(MEDIDAS  CAUTELARES)  to  which  the  Parties  may be  entitled  to  under  the
applicable  law of the UMS to prevent or cure breaches of the provisions of this
Agreement  and  to  enforce  specifically  the  terms  and  provisions  of  this
Agreement.  The Parties agree that actions with respect to any such  prejudgment
measures  (MEDIDAS  CAUTELARES)  may be instituted in any local or federal civil
courts of the UMS which has proper  jurisdiction  to enforce  those  prejudgment
measures (MEDIDAS CAULTELARES).

     SECTION 12.11 GOVERNING LAW; DISPUTE RESOLUTION.

     (a)  Resolution  of any and  all  disputes  between  KCS and one or more of
Sellers  (each of KCS, on the one hand,  and one or more of the Sellers,  on the
other hand, a "Dispute Party" and together,  the "Dispute Parties") arising from
or in connection  with this Agreement  (except those to be resolved  pursuant to
Section 10.5(e)),  the Ancillary Agreements or any transactions  contemplated by
this  Agreement or the Ancillary  Agreements,  whether based on contract,  tort,
common  law,  equity,  statute,  regulation,  order or  otherwise,  ("Disputes")
including Disputes arising in connection with claims by third persons,  shall be
exclusively  governed by and settled in accordance  with the  provisions of this
Section  12.11;  PROVIDED,  that the foregoing  shall not



preclude  equitable or other judicial relief to enforce the provisions hereof or
to preserve the status quo pending resolution of Disputes hereunder.

     (b) THIS AGREEMENT,  THE LEGAL RELATIONS BETWEEN THE PARTIES HERETO AND THE
ADJUDICATION AND ENFORCEMENT  THEREOF,  SHALL BE GOVERNED BY AND INTERPRETED AND
CONSTRUED IN ACCORDANCE WITH THE  SUBSTANTIVE  LAWS OF THE STATE OF DELAWARE AND
THE FEDERAL LAWS OF THE UNITED STATES OF AMERICA,  WITHOUT  REGARD TO APPLICABLE
CHOICE OF LAW PROVISIONS.

     (c) As to any  Dispute  which is not  resolved  in the  ordinary  course of
business,  the Dispute  Parties  shall  first  attempt in good faith to promptly
resolve any Dispute by negotiations  between  executives.  Either of the Dispute
Parties may initiate this procedure by delivery of written notice of the Dispute
(the  "Dispute  Notice")  to the other.  Not later than  twenty  (20) days after
delivery of the Dispute Notice, one executive of one of the Dispute Parties with
authority  to settle  the  Dispute  shall meet with one  executive  of the other
Dispute  Party with  authority to settle the Dispute at a reasonably  acceptable
time  and  place,  and  thereafter  as such  executives  shall  deem  reasonably
necessary.  The executives shall exchange  relevant  information and endeavor to
resolve the Dispute.  Prior to any such meeting,  each Dispute Party's executive
shall advise the other as to any  individuals  who will attend such meeting with
the  executive.  All  negotiations  pursuant to this Section  12.11(c)  shall be
confidential  and shall be treated as  compromise  negotiations  for purposes of
Rule 408 of the Federal  Rules of Evidence  and  similarly  under other local or
foreign rules of evidence.

     (d) Each Dispute  Party  hereby  agrees to submit all Disputes not resolved
pursuant to Section  12.11(c) to final and binding  arbitration in New York, New
York. Either Dispute Party may initiate such arbitration by delivery of a demand
therefor (the  "Arbitration  Demand") to the other Dispute Party not sooner than
sixty (60) days after the date of delivery of the  Dispute  Notice but  promptly
thereafter;  PROVIDED,  that if a Dispute  Party  rejects  participation  in the
procedures provided under Section 12.11(c), the other Dispute Party may initiate
arbitration  at such earlier  time as such  rejection  shall  become  reasonably
apparent,  and,  whenever  arbitration  is  initiated,  may seek recovery of any
damages or expenses arising from such rejection,  including  attorney's fees and
expenses,  Arbitration  Costs (as defined below) in connection with  arbitration
hereunder.

          (i) Three (3) Arbitrators shall be appointed (the "Arbitrators"),  one
     of whom shall be appointed  by KCS, one by TMM, and the third of whom,  who
     shall act as the chairman of the arbitral  tribunal,  shall be appointed by
     the first two (2)  Arbitrators  within ten (10)  Business Days of the first
     two (2) Arbitrators  confirmation by the American Arbitration  Association.
     Each Party agrees that Sellers shall be considered  jointly as one side for
     the purposes of  constitution  of the arbitration  tribunal  hereunder.  If
     either  Dispute  Party  fails to  appoint  an  Arbitrator  within  ten (10)
     Business  Days of a request in writing by the other  Dispute Party to do so
     or if the first two  Arbitrators  cannot  agree on the  appointment  of the
     third Arbitrator within ten (10) Business Days of their confirmation by the
     American Arbitration  Association,  then such



     Arbitrator  shall be appointed by the American  Arbitration  Association in
     accordance  with  its  Commercial   Arbitration   Rules.  As  soon  as  the
     arbitration  tribunal has been convened, a hearing date shall be set within
     fifteen (15) days thereafter; PROVIDED, that the Arbitrators may extend the
     date of the  hearing  upon  request  of any  Dispute  Party  to the  extent
     necessary to insure that such Dispute Party is given a reasonable period of
     time to prepare for the hearing. Written submittals in the English language
     shall be presented and exchanged by both Dispute  Parties five (5) Business
     Days before the hearing date.  At such time the Dispute  Parties shall also
     exchange  copies of all  documentary  evidence upon which they will rely at
     the  arbitration  hearing and a list of the  witnesses  whom they intend to
     call  to  testify  at  the  hearing.   The  Arbitrators  shall  make  their
     determination as promptly as practicable after conclusion of the hearing.

          (ii)  The  arbitration  shall be  conducted  in the  English  language
     pursuant to the Commercial  Arbitration  Rules of the American  Arbitration
     Association.  Notwithstanding  the foregoing,  (A) each Dispute Party shall
     have the right to audit the books and  records of the other  Dispute  Party
     that are  reasonably  related to the Dispute;  (B) each Dispute Party shall
     provide to the other,  reasonably in advance of any hearing,  copies of all
     documents which a Dispute Party intends to present in such hearing; (C) all
     hearings  shall  be  conducted  on  an  expedited  schedule;  and  (D)  all
     proceedings shall be confidential,  except that either Dispute Party may at
     its expense make a stenographic record thereof.

          (iii) The  Arbitrators  shall  endeavor to complete  all  hearings not
     later than one  hundred  twenty  (120) days after their  tribunal  has been
     convened,  and  shall  make  a  final  award  as  promptly  as  practicable
     thereafter.   Such  award  shall  be  communicated,   in  writing,  by  the
     Arbitrators to the Dispute Parties,  and shall contain specific findings of
     fact and  conclusions of law in accordance with the governing law set forth
     in Section 12.11(b) of this Agreement.  Any award of such Arbitrators shall
     be final and binding  upon the Parties to this  Agreement  and shall not be
     attacked  by any of the Parties to this  Agreement  in any court of law and
     may be enforced in any court having  jurisdiction,  including expressly the
     courts of the State of New York,  United States of America,  and the courts
     of the Federal District of Mexico. Any such award shall include appropriate
     instructions  to the Escrow Agent under the Closing Escrow  Agreement.  The
     Arbitrators  shall  apportion  all costs and  expenses of the  arbitration,
     including the Arbitrators' fees and expenses,  fees and expenses of experts
     and fees and  expenses of  translators  ("Arbitration  Costs")  between the
     prevailing and  non-prevailing  Dispute Party as the Arbitrators shall deem
     fair and reasonable. In circumstances where (A) a Dispute has been asserted
     or  defended  against  on  grounds  that the  Arbitrators  deem  manifestly
     unreasonable,   or  (B)  the  non-prevailing  Dispute  Party  has  rejected
     participation  in procedures  under Section  12.11(c),  the Arbitrators may
     assess all Arbitration Costs against the  non-prevailing  Dispute Party and
     may include in the award the prevailing Dispute Party's attorney's fees and
     expenses in  connection  with any and all  proceedings  under this  Section
     12.11. Notwithstanding the foregoing, in no event may the Arbitrators award
     multiple or punitive damages.

     (e)  Pursuant  to  an  agreement  of  the  Parties  hereto  or  a  judicial
determination that a Dispute is not subject to final and binding  arbitration as
set forth in Section 12.11, KCS and each of Sellers  irrevocably agrees that any
legal action or  proceeding  against it with respect to



this  Agreement and any  transaction  contemplated  by this  Agreement  shall be
brought only in the courts of the State of New York, or of Federal courts of the
United States of America  sitting in New York,  and by execution and delivery of
this  Agreement,  KCS and each of Sellers  irrevocably  submits to the venue and
jurisdiction of each such court and irrevocably  waives any objection or defense
such Party may have to venue or personal  jurisdiction in any such court for the
purpose of  resolving  any claim,  dispute,  cause of action  arising  out of or
related to this Agreement  (including any claim that the suit or action has been
brought in an  inconvenient  forum and any right to which it may become entitled
on  account of place of  residence  or  domicile),  the  alleged  breach of this
Agreement, the enforcement of the terms of this Agreement, the Acquisition,  the
Ancillary  Agreements  and the other terms  contemplated  hereby and thereby.  A
final judgment in any suit,  action or proceeding shall be conclusive and may be
enforced in any court where jurisdiction over the Parties may be had or in which
the Parties are subject to service of process.

     (f) Each of the Parties  irrevocably  appoints CT Corporation (the "Process
Agent"),  at 111  Eighth  Avenue,  New  York,  New  York  10011  (212-894-8940),
respectively,  as its agent and true and  lawful  attorney-in-fact  in its name,
place and stead to accept on behalf of each of the Parties and their  respective
properties and revenues,  service of copies of the summons and complaint and any
other process which may be served in any such suit, action or proceeding brought
in the State of New York,  and each of the Parties hereto agrees that failure of
the  Process  Agent to give any notice of any such  service of process to any of
the Parties  hereto  shall not impair or affect the  validity of such service or
the enforcement of any judgment based thereon.

     SECTION  12.12  ANNOUNCEMENTS.  KCS and TMM shall  consult  with each other
before issuing, and provide each other the opportunity to review, comment on and
concur with,  any press release or other public  statement  with respect to this
Agreement, the Acquisition,  the Ancillary Agreements and the other transactions
contemplated  hereby  and  thereby,  except as either  Party  may  determine  is
otherwise  required by Applicable Law, judicial or administrative  action or any
requirement of the NYSE or any other applicable self-regulatory organization.

     SECTION 12.13  TERMINATION FEE. In the event of (i) a termination  pursuant
to  Section  9.1(a)(v),  the Party  experiencing  the  Change of  Control  shall
promptly after a demand  therefor remit to the Party  terminating in immediately
available funds the sum of Eighteen  Million Dollars  ($18,000,000),  and (ii) a
termination  pursuant to Section  9.1(a)(iii)  or  9.1(a)(iv) as a result of the
failure of the stockholders of KCS or of TMM to approve the Acquisition if at or
prior to the meeting of such stockholders to approve the Acquisition,  the Board
of Directors of KCS, in the case of the KCS stockholders'  meeting, or the Board
of Directors of TMM, in the case of the TMM  stockholders'  meeting,  shall have
failed  to  recommend  or  shall  have   withdrawn   and  not   reinstated   its
recommendation of, the Acquisition,  then the Party whose stockholders shall not
have approved the Acquisition shall remit to the other Party, if the other Party
elects  to  terminate  and  promptly  after a demand  therefor,  in  immediately
available funds, the sum of Eighteen Million Dollars ($18,000,000).  The receipt
of any sums  pursuant to this  Section  12.13 shall not preclude or diminish any
other rights a Party may have under this Agreement.



     IN WITNESS  WHEREOF,  the Parties have caused this Agreement to be executed
as of the date first above written.

                                   KANSAS CITY SOUTHERN


                                   By:  /s/ Michael R. Haverty
                                        ---------------------------------
                                   Name:    Michael R. Haverty
                                   Title:   Chairman, President & CEO


                                   KARA Sub, Inc.


                                   By:  /s/ Ronald G. Russ
                                        ---------------------------------
                                   Name:    Ronald G. Russ
                                   Title:   Vice President


                                   KCS INVESTMENT I, LTD.


                                   By:  /s/ Ronald G. Russ
                                        ---------------------------------
                                   Name:    Ronald G. Russ
                                   Title:   Vice President



                                   KCS ACQUISITION SUBSIDIARY, INC.


                                   By:  /s/ Ronald G. Russ
                                        ---------------------------------
                                   Name:    Ronald G. Russ
                                   Title:   Vice President


                                   CAYMEX TRANSPORTATION, INC.


                                   By:  /s/ Jay M. Nadlman
                                        ---------------------------------
                                   Name:    Jay M. Nadlman
                                   Title:   Vice President and Secretary


                                   GRUPO TMM, S.A.


                                   By:  /s/ Jose Francisco Serrano Segovia
                                        ---------------------------------
                                   Name:    Jose Francisco Serrano Segovia
                                   Title:   Attorney in Fact


                                   By:  /s/ Javier Segovia Serrano
                                        ---------------------------------
                                   Name:    Javier Segovia Serrano
                                   Title:   Attorney in Fact


                                   TMM HOLDINGS, S.A. de C.V.


                                   By:  /s/ Jose Francisco Serrano Segovia
                                        ---------------------------------
                                   Name:    Jose Francisco Serrano Segovia
                                   Title:   Attorney in Fact


                                   By:  /s/ Javier Segovia Serrano
                                        ---------------------------------
                                   Name:    Javier Segovia Serrano
                                   Title:   Attorney in Fact



                                   TMM MULTIMODAL, S.A. de C.V.


                                   By:  /s/ Jose Francisco Serrano Segovia
                                        ---------------------------------
                                   Name:    Jose Francisco Serrano Segovia
                                   Title:   Attorney in Fact


                                   By:  /s/ Javier Segovia Serrano
                                        ---------------------------------
                                   Name:    Javier Segovia Serrano
                                   Title:   Attorney in Fact


                                   GRUPO TRANSPORTACION FERROVIARIA
                                   MEXICANA, S.A. de C.V.


                                   By:  /s/ Jose Francisco Serrano Segovia
                                        ---------------------------------
                                   Name:    Jose Francisco Serrano Segovia
                                   Title:   Attorney in Fact


                                   By:  /s/ Javier Segovia Serrano
                                        ---------------------------------
                                   Name:    Javier Segovia Serrano
                                   Title:   Attorney in Fact