Exhibit 4.14



                                CREDIT AGREEMENT

                                      among

                              CEMEX, S.A. de C.V.,
                                   as Borrower

                                       and

                           CEMEX MEXICO, S.A. de C.V.,
                                  as Guarantor

                                       and

                    EMPRESAS TOLTECA de MEXICO, S.A. de C.V.,
                                  as Guarantor

                                       and

                        The Several Lenders Party Hereto,
                                   as Lenders

                                       and

                       BARCLAYS BANK PLC, NEW YORK BRANCH,
                             as Administrative Agent

                                       and

                                BARCLAYS CAPITAL,
                         THE INVESTMENT BANKING DIVISION
                              OF BARCLAYS BANK PLC,
                   as Joint Lead Arranger and Joint Bookrunner

                                       and

                         CITIGROUP GLOBAL MARKETS INC.,
        as Documentation Agent, Joint Lead Arranger and Joint Bookrunner



                                US$1,200,000,000

                            Dated as of May 31, 2005





                                                   TABLE OF CONTENTS

                                                                                                                Page
                                                                                                                ----


                                                                                                              
ARTICLE I         DEFINITIONS.....................................................................................1

         1.01  Certain Definitions................................................................................1
         1.02  Other Definitional Provisions.....................................................................18
         1.03  Accounting Terms and Determinations...............................................................19

ARTICLE II        THE LOAN FACILITIES............................................................................19

         2.01  Revolving Loans...................................................................................19
         2.02  Interest..........................................................................................23

ARTICLE III       TERMINATION AND REDUCTION OF COMMITMENTS; FEES, TAXES, PAYMENT PROVISIONS......................24

         3.01  Termination or Reduction of Commitments...........................................................24
         3.02  Fees..............................................................................................25
         3.03  Computation of Fees...............................................................................25
         3.04  Taxes.............................................................................................25
         3.05  General Provisions as to Payments.................................................................28
         3.06  Funding Losses....................................................................................29
         3.07  Basis for Determining Interest Rate Inadequate or Unfair..........................................30
         3.08  Capital Adequacy..................................................................................30
         3.09  Illegality........................................................................................31
         3.10  Requirements of Law...............................................................................32
         3.11  Substitute Lenders................................................................................33
         3.12  Sharing of Payments, Etc..........................................................................33

ARTICLE IV        CONDITIONS PRECEDENT...........................................................................34

         4.01  Conditions to Effectiveness.......................................................................34
         4.02  Conditions Precedent to Borrowings and Continuation or
                Conversion of the Loans..........................................................................36

ARTICLE V         REPRESENTATIONS AND WARRANTIES OF THE BORROWER.................................................36

         5.01  Corporate Existence and Power.....................................................................36
         5.02  Power and Authority; Enforceable Obligations......................................................36
         5.03  Compliance with Law and Other Instruments.........................................................37
         5.04  Consents/Approvals................................................................................37
         5.05  Financial Information.............................................................................37
         5.06  Litigation........................................................................................37
         5.07  No Immunity.......................................................................................38
         5.08  Governmental Regulations..........................................................................38
         5.09  Direct Obligations; Pari Passu; Liens.............................................................38
         5.10  Subsidiaries......................................................................................38
         5.11  Ownership of Property.............................................................................38
         5.12  No Recordation Necessary..........................................................................38
         5.13  Taxes.............................................................................................39
         5.14  Compliance with Laws..............................................................................39
         5.15  Absence of Default................................................................................39
         5.16  Full Disclosure...................................................................................40
         5.17  Choice of Law; Submission to Jurisdiction and
                Waiver of Sovereign Immunity.....................................................................40
         5.18  Aggregate Exposure................................................................................40
         5.19  Pension and Welfare Plans.........................................................................40
         5.20  Environmental Matters.............................................................................40
         5.21  Margin Regulations................................................................................41

ARTICLE VI        REPRESENTATIONS AND WARRANTIES OF THE GUARANTORS...............................................42

         6.01  Corporate Existence and Power.....................................................................42
         6.02  Power and Authority; Enforceable Obligations......................................................42
         6.03  Compliance with Law and Other Instruments.........................................................42
         6.04  Consents/Approvals................................................................................43
         6.05  Litigation; Material Adverse Effect...............................................................43
         6.06  No Immunity.......................................................................................43
         6.07  Governmental Regulations..........................................................................43
         6.08  Direct Obligations; Pari Passu....................................................................43
         6.09  No Recordation Necessary..........................................................................43
         6.10  Choice of Law; Submission to Jurisdiction and
                Waiver of Sovereign Immunity.....................................................................44

ARTICLE VII       AFFIRMATIVE COVENANTS..........................................................................44

         7.01  Financial Reports and Other Information...........................................................44
         7.02  Notice of Default and Litigation..................................................................45
         7.03  Compliance with Laws and Contractual Obligations, Etc.............................................45
         7.04  Payment of Obligations............................................................................46
         7.05  Maintenance of Insurance..........................................................................46
         7.06  Conduct of Business and Preservation of Corporate Existence.......................................46
         7.07  Books and Records.................................................................................46
         7.08  Maintenance of Properties, Etc....................................................................46
         7.09  Use of Proceeds...................................................................................47
         7.10  Aggregate Exposure................................................................................47
         7.11  Pari Passu Ranking................................................................................47
         7.12  Transactions with Affiliates......................................................................47
         7.13  Maintenance of Governmental Approvals.............................................................47
         7.14  Measurement Date..................................................................................47
         7.15  Inspection of Property............................................................................47

ARTICLE VIII      NEGATIVE COVENANTS.............................................................................48

         8.01  Financial Conditions..............................................................................48
         8.02  Liens.............................................................................................48
         8.03  Consolidations and Mergers........................................................................50
         8.04  Sales of Assets, Etc..............................................................................51
         8.05  Change in Nature of Business......................................................................51
         8.06  Margin Regulations................................................................................51

ARTICLE IX        OBLIGATIONS OF GUARANTORS......................................................................51

         9.01  The Guaranty......................................................................................51
         9.02  Nature of Liability...............................................................................51
         9.03  Unconditional Obligations.........................................................................51
         9.04  Independent Obligation............................................................................52
         9.05  Waiver of Notices.................................................................................52
         9.06  Waiver of Defenses................................................................................53
         9.07  Bankruptcy and Related Matters....................................................................54
         9.08  No Subrogation....................................................................................55
         9.09  Right of Contribution.............................................................................55
         9.10  General Limitation on Guaranty....................................................................55
         9.11  Covenants of the Guarantors.......................................................................55

ARTICLE X         EVENTS OF DEFAULT..............................................................................56

         10.01  Events of Default................................................................................56
         10.02  Remedies.........................................................................................58
         10.03  Notice of Default................................................................................58
         10.04  Default Interest.................................................................................58

ARTICLE XI        THE ADMINISTRATIVE AGENT.......................................................................59

         11.01  Appointment and Authorization....................................................................59
         11.02  Delegation of Duties.............................................................................59
         11.03  Liability of Administrative Agent................................................................59
         11.04  Reliance by Administrative Agent.................................................................60
         11.05  Notice of Default................................................................................60
         11.06  Credit Decision..................................................................................60
         11.07  Indemnification..................................................................................61
         11.08  Administrative Agent in Individual Capacity......................................................61
         11.09  Successor Administrative Agent...................................................................62

ARTICLE XII       THE JOINT BOOKRUNNERS..........................................................................62

         12.01  The Joint Bookrunners............................................................................62
         12.02  Liability of Joint Bookrunners...................................................................63
         12.03  Joint Bookrunners in their respective Individual Capacities......................................63
         12.04  Credit Decision..................................................................................63

ARTICLE XIII      MISCELLANEOUS..................................................................................64

         13.01  Notices..........................................................................................64
         13.02  Amendments and Waivers...........................................................................64
         13.03  No Waiver; Cumulative Remedies...................................................................65
         13.04  Payment of Expenses, Etc.........................................................................65
         13.05  Indemnification..................................................................................66
         13.06  Successors and Assigns...........................................................................66
         13.07  Right of Set-off.................................................................................68
         13.08  Confidentiality..................................................................................65
         13.09  Use of English Language..........................................................................66
         13.10  Governing Law....................................................................................69
         13.11  Submission to Jurisdiction.......................................................................69
         13.12  Appointment of Agent for Service of Process......................................................70
         13.13  Waiver of Sovereign Immunity.....................................................................70
         13.14  Judgment Currency................................................................................70
         13.15  Counterparts.....................................................................................71
         13.16  USA PATRIOT Act..................................................................................71
         13.17  Severability.....................................................................................71
         13.18  Survival of Agreements and Representations.......................................................71




SCHEDULES

Schedule 1.01(a)        --    Commitments

Schedule 1.01(b)        --    Lending Offices

Schedule 1.01(c)        --    Notice Details

Schedule 5.06           --    Litigation

Schedule 5.10           --    Subsidiaries

Schedule 6.05           --    Litigation

Schedule 8.02(e)(i)     --    Liens

Schedule 8.02(e)(ii)    --    Liens


EXHIBITS

Exhibit A    --    Form of Note

Exhibit B    --    Notice of Borrowing

Exhibit C    --    Form of Notice of Extension/Conversion

Exhibit D    --    Form of Assignment and Assumption Agreement

Exhibit E    --    Form of Opinion of Special New York Counsel to the Borrower
                   and the Guarantors

Exhibit F    --    Form of Opinion of Mexican Counsel to the Borrower and
                   the Guarantors

Exhibit G    --    Mandatory Cost Formula



                                CREDIT AGREEMENT
                                ----------------

         CREDIT AGREEMENT, dated as of May 31, 2005 among CEMEX, S.A. de C.V., a
sociedad anonima de capital variable organized and existing pursuant to the laws
of the United Mexican States (the "Borrower"), CEMEX MEXICO, S.A. de C.V., a
sociedad anonima de capital variable organized and existing pursuant to the laws
of the United Mexican States, EMPRESAS TOLTECA DE MEXICO, S.A. de C.V., a
sociedad anonima de capital variable organized and existing pursuant to the laws
of the United Mexican States (each a "Guarantor" and together, the
"Guarantors"), the several Lenders party hereto, BARCLAYS BANK PLC, NEW YORK
BRANCH, as Administrative Agent, BARCLAYS CAPITAL, THE INVESTMENT BANKING
DIVISION OF BARCLAYS BANK PLC, as Joint Lead Arranger and Joint Bookrunner and
CITIGROUP GLOBAL MARKETS INC., as Documentation Agent, Joint Lead Arranger and
Joint Bookrunner.

                                    RECITALS

         WHEREAS, the Borrower entered into a term credit agreement, dated as of
April 5, 2005 (the "Term Credit Agreement"), among the Borrower, the Guarantors,
the several lenders party thereto, Barclays Bank PLC, as administrative agent,
Barclays Capital, the Investment Banking Division of Barclays Bank PLC, as joint
lead arranger and joint bookrunner and Citigroup Global Markets Inc., as
documentation agent, joint lead arranger and joint bookrunner;

         WHEREAS, the Borrower proposes to terminate the Term Credit Agreement
and enter into a new five-year multi-currency revolving credit facility; and

         WHEREAS, the Guarantors are willing to guaranty all of the Obligations
of the Borrower.

         NOW, THEREFORE, each of the Parties hereto hereby agrees as follows:

                                    ARTICLE I
                                   DEFINITIONS
                                   -----------

         1.01 Certain Definitions. As used in this Agreement, the following
terms shall have the following meanings:

                  "Acquired Subsidiary" means any Subsidiary acquired by the
         Borrower or any other Subsidiary after the date hereof in an
         Acquisition, and any Subsidiaries of such Acquired Subsidiary on the
         date of such Acquisition.

                  "Acquiring Subsidiary" means any Subsidiary of the Borrower or
         any one of its Subsidiaries solely for the purpose of participating as
         the acquiring party in any Acquisition, and any Subsidiaries of such
         Acquiring Subsidiary acquired in such Acquisition.

                  "Acquisition" means any merger, consolidation, acquisition or
         lease of assets, acquisition of securities or business combination or
         acquisition, or any two or more of such transactions, if upon the
         completion of such transaction or transactions, the Borrower or any
         Subsidiary thereof has acquired an interest in any Person who is deemed
         to be a Subsidiary under this Agreement and was not a Subsidiary prior
         thereto.

                  "Adjusted Consolidated Net Tangible Assets" means, with
         respect to any Person, the total assets of such Person and its
         Subsidiaries (less applicable depreciation, amortization and other
         valuation reserves), including any write-ups or restatements required
         under Mexican GAAP (other than with respect to items referred to in
         clause (ii) below), after deducting therefrom (i) all current
         liabilities of such Person and its Subsidiaries (excluding the current
         portion of long-term debt) and (ii) all goodwill, trade names,
         trademarks, licenses, concessions, patents, unamortized debt discount
         and expense and other intangibles, all as determined on a consolidated
         basis in accordance with Mexican GAAP.

                  "Administrative Agent" means Barclays Bank PLC, in its
         capacity as administrative agent for the Lenders, and its successors in
         such capacity.

                  "Administrative Agent's Payment Office" means the
         Administrative Agent's address for payments set forth on the signature
         pages hereof or such other address as the Administrative Agent may from
         time to time specify to the other Parties hereto pursuant to the terms
         of this Agreement.

                  "Affected Lender" has the meaning specified in Section
         3.09(a).

                  "Affiliate" means, in relation to any Person, a Subsidiary of
         that Person or a Holding Company of that Person or any other Subsidiary
         of that Holding Company.

                  "Aggregate Committed Amount" means the aggregate amount of all
         of the Commitments.

                  "Aggregate Exposure" means the Dollar Amount of the aggregate
         principal amount of all Loans outstanding.

                  "Agreement" means this Credit Agreement, as the same may
         hereafter be amended, supplemented or otherwise modified from time to
         time.

                  "Applicable Margin" means, at any date, the applicable margin
         set forth below based upon the Borrower's Consolidated Net Debt/EBITDA
         Ratio (it being understood that measurement of the Consolidated Net
         Debt/EBITDA Ratio as of the most recent Measurement Date is sufficient
         for this purpose):

                                                   Applicable Margin
                                           ------------------------------------
                                           Base
                                           Rate           LIBOR         Euribor
Consolidated Net Debt/EBITDA Ratio         Loans          Loans         Loans
- -------------------------------------------------------------------------------
3.00 to 1 or greater                      0.50%           0.50%          0.50%
Less than 3.00 to 1, but greater
  than or equal to 2.50 to 1              0.45%           0.45%          0.45%
Less than 2.50 to 1, but greater
  than or equal to 2.00 to 1              0.40%           0.40%          0.40%
Less than 2.00 to 1                       0.35%           0.35%          0.35%


         ; provided, however, the initial Applicable margin shall be 0.50%.

                  "Assignee" has the meaning specified in Section 13.06(b).

                  "Assignment and Assumption Agreement" means an assignment and
         assumption agreement in substantially the form of Exhibit D.

                  "Available Commitments" means, as of any date, the Aggregate
         Committed Amount minus the Aggregate Exposure.

                  "Average Aggregate Committed Amount" means, for any
         Utilization Period, the sum of the Aggregate Committed Amount as of the
         end of each day during such Utilization Period, divided by the number
         of days in such Utilization Period.

                  "Average Outstanding Loans" means, for any Utilization Period,
         the sum of the aggregate principal amount of Loans outstanding under
         this Agreement as of the end of each day during such Utilization
         Period, divided by the number of days in such Utilization Period.

                  "Base Rate" means, for any day, the higher of (a) the Prime
         Rate or (b) the Federal Funds Rate plus 1/2% per annum, in each case as
         in effect for such day. Any change in the Prime Rate announced by the
         Reference Banks shall take effect at the opening of business on the day
         specified in the public announcement of such change.

                  "Base Rate Loan" means any Loan made or maintained at a rate
         of interest calculated with reference to the Base Rate.

                  "Bookrunners" or "Joint Bookrunners" means Barclays Capital,
         the Investment Banking Division of Barclays Bank PLC, and Citigroup
         Global Markets Inc., in their capacity as joint bookrunners hereunder,
         and each of their successors in such capacity.

                  "Borrower" has the meaning specified in the preamble hereto.

                  "Borrowing" means the aggregate amount of Loans hereunder to
         be made to the Borrower pursuant to Article II on a particular date by
         each of the Lenders.

                  "Borrowing Request" means a Notice of Borrowing.

                  "Business Day" means any day other than a Saturday or Sunday
         or other day on which commercial banks in New York City are authorized
         or required by law to close and

                  (i) (in relation to any date for payment or lending or
         purchase of, or the determination of an interest rate or rate of
         exchange in relation to, Japanese Yen) a day on which the Tokyo
         interbank market is also open for dealings in Japanese Yen; or


                  (ii) (in relation to any date for payment or lending or
         purchase of, or the determination of an interest rate or rate of
         exchange in relation to, Sterling) a day on which the London interbank
         market is also open for dealings in Sterling; or

                  (iii) (in relation to any date for payment or lending or
         purchase of, or the determination of an interest rate or rate of
         exchange in relation to, Euro), any TARGET Day.

                  "Capital Lease" means, as to any Person, the obligations of
         such Person to pay rent or other amounts under any lease of (or other
         arrangement conveying the right to use) real or personal property, or a
         combination thereof, which obligations are required to be classified
         and accounted for as capital leases on a balance sheet of such Person
         under Mexican GAAP and, for the purposes of this Agreement, the amount
         of such obligations at any time shall be the capitalized amount thereof
         at such time determined in accordance with Mexican GAAP.

                  "Capital Stock" means any and all shares, interests,
         participations or other equivalents (however designed) of capital stock
         of a corporation, any and all equivalent ownership interests in a
         Person (other than a corporation) and any and all warrants, rights or
         options to purchase any of the foregoing.

                  "Commitment" means, with respect to each Lender, the aggregate
         principal Dollar Amount set forth opposite the name of such Lender in
         Schedule 1.01(a) or in any Assignment and Assumption Agreement, as such
         amount may be reduced or increased from time to time in accordance with
         the provisions hereof.

                  "Commitment Fee" has the meaning specified in Section 3.02.

                  "Commitment Percentage" means, with respect to each Lender, a
         fraction (expressed as a decimal) the numerator of which is the
         Commitment of such Lender at such time and the denominator of which is
         the Aggregate Committed Amount at such time. The initial Commitment
         Percentages are set out on Schedule 1.01(a).

                  "Commitment Period" means the period from and including the
         Effective Date to but excluding the earlier of (i) the Termination
         Date, or (ii) the date on which the Commitments terminate in accordance
         with the provisions of this Agreement.

                  "Confidential Information" means information that the Borrower
         or a Guarantor furnishes to the Administrative Agent, the Joint
         Bookrunners or any Lender in a writing designated as confidential, but
         does not include any such information that is or becomes generally
         available to the public or that is or becomes available to the
         Administrative Agent or the Joint Bookrunners or such Lender from a
         source other than the Borrower or a Guarantor that is not, to the best
         of the Administrative Agent's, the Joint Bookrunners' or such Lender's
         knowledge, acting in violation of a confidentiality agreement with the
         Borrower or Guarantor or any other Person.

                  "Consolidated" refers to the consolidation of accounts in
         accordance with Mexican GAAP.

                  "Consolidated Fixed Charges" means, for any period, the sum
         (without duplication) of (a) Consolidated Interest Expense for such
         period and (b) to the extent not included in (a) above, payments during
         such period in respect of the financing costs of financial derivatives
         in the form of equity swaps.

                  "Consolidated Fixed Charge Coverage Ratio" means, for any
         period of four consecutive fiscal quarters, the ratio of (a) EBITDA for
         such period to (b) Consolidated Fixed Charges for such period.

                  "Consolidated Interest Expense" means, for any period, the
         total gross interest expense of the Borrower and its consolidated
         Subsidiaries allocable to such period in accordance with Mexican GAAP.

                  "Consolidated Net Debt" means, at any date, the sum (without
         duplication) of (a) the aggregate amount of all Debt of the Borrower
         and its Subsidiaries at such date, plus (b) to the extent not included
         in Debt, the aggregate amount of all derivative financing in the form
         of equity swaps outstanding at such date (save to the extent cash
         collateralized) minus (c) all Temporary Investments of the Borrower and
         its Subsidiaries at such date.

                  "Consolidated Net Debt / EBITDA Ratio" means, the ratio of (a)
         Consolidated Net Debt to (b) EBITDA for the period of four consecutive
         fiscal quarters immediately preceding, which shall be calculated based
         on the most recently available consolidated financial statements of the
         Borrower and its Subsidiaries as of such date.

                  "Contractual Obligation" means, as to any Person, any
         provision of any security issued by such Person or of any indenture,
         mortgage, deed of trust, loan agreement or other agreement to which
         such Person is a party or by which it or any of its property or assets
         is bound.

                  "Credit Party" means any of the Borrower or the Guarantors.

                  "Debt" of any Person means, without duplication, (i) all
         obligations of such Person for borrowed money, (ii) all obligations of
         such Person evidenced by bonds, debentures, notes or other similar
         instruments, (iii) all obligations of such Person to pay the deferred
         purchase price of property or services, except trade accounts payable
         arising in the ordinary course of business, (iv) all obligations of
         such Person as lessee under Capital Leases, (v) all Debt of others
         secured by a Lien on any asset of such Person, up to the value of such
         asset, as recorded in such Person's most recent balance sheet, (vi) all
         obligations of such Person with respect to product invoices incurred in
         connection with export financing, and (vii) all obligations of such
         Person under repurchase agreements for the stock issued by such Person
         or another Person. For the avoidance of doubt, Debt does not include
         Derivatives. With respect to the Borrower and its subsidiaries, the
         aggregate amount of Debt outstanding shall be adjusted by the Value of
         Debt Currency Derivatives solely for the purposes of calculating the
         Consolidated Net Debt / EBITDA Ratio. If the Value of Debt Currency
         Derivatives is a positive mark-to-market valuation for the Borrower and
         its subsidiaries, then Debt shall decrease accordingly, and if the
         Value of Debt Currency Derivatives is a negative mark-to-market
         valuation for the Borrower and its subsidiaries, then Debt shall
         increase by the absolute value thereof.

                  "Debt Currency Derivatives" means derivatives of the Borrower
         and its subsidiaries related to currency entered into for the purposes
         of hedging exposures under outstanding Debt of the Borrower and its
         subsidiaries, including but not limited to cross-currency swaps and
         currency forwards.

                  "Default" means any condition, event or circumstance which,
         with the giving of notice or lapse of time or both, would, unless cured
         or waived, become an Event of Default.

                  "Defaulting Lender" has the meaning specified in Section
         2.01(d).

                  "Derivatives" means any type of derivative obligations,
         including but not limited to equity forwards, capital hedges,
         cross-currency swaps, currency forwards, interest rate swaps and
         swaptions.

                  "Disbursement Date" means the date on which such Loan is made
         by the Lenders.

                  "Disposition" means, with respect to any property, any sale,
         lease, sale and leaseback, assignment, conveyance, transfer or other
         disposition thereof. The terms "Dispose" and "Disposed of" shall have
         correlative meanings.

                  "Dollar Amount" shall mean, at any time with respect to any
         Loan, (a) with respect to Dollars or an amount denominated in Dollars,
         such amount and (b) with respect to an amount of any Foreign Currency
         or an amount denominated in a Foreign Currency, the equivalent amount
         thereof in Dollars as determined by the Administrative Agent on the
         basis of the Spot Rate as of the most recent Revaluation Date for the
         purchase of Dollars with such Foreign Currency.

                  "Dollars", "$" and "U.S.$" each means the lawful currency of
         the United States.

                  "EBITDA" means, for any period, the sum for the Borrower and
         its Subsidiaries, determined on a consolidated basis of (a) operating
         income (utilidad de operacion), (b) cash interest income and (c)
         depreciation and amortization expense, in each case determined in
         accordance with Mexican GAAP consistently applied for such period. For
         the purposes of calculating EBITDA for any period of four consecutive
         fiscal quarters (each, a "Reference Period") pursuant to any
         determination of the Consolidated Net Debt / EBITDA Ratio (but not
         Consolidated Fixed Charge Coverage Ratio), (i) if at any time during
         such Reference Period the Borrowers or any of its Subsidiaries shall
         have made any Material Disposition, the EBITDA for such Reference
         Period shall be reduced by an amount equal to the EBITDA (if positive)
         attributable to the property that is the subject of such Material
         Disposition for such Reference Period (but when the Material
         Disposition is by way of a lease, income received by the Borrower or
         any of its Subsidiaries under such lease shall be included in EBITDA
         and (ii) if at any time during such Reference Period the Borrower or
         any of its Subsidiaries shall have made any Material Acquisition,
         EBITDA for such Reference Period shall be calculated after giving pro
         forma effect thereto (including the incurrence or assumption of any
         Debt) as if such Material Acquisition had occurred on the first day of
         such Reference Period. Additionally, if since the beginning of such
         Reference Period any Person that subsequently shall have become a
         Subsidiary or was merged or consolidated with the Borrower or any of
         its Subsidiaries as a result of a Material Acquisition occurring during
         such Reference Period shall have made any Disposition or Acquisition of
         property that would have required an adjustment pursuant to clause (i)
         or (ii) above if made by the Borrower or any of its Subsidiaries during
         such Reference Period, EBITDA for such period shall be calculated after
         giving pro forma effect thereto as if such Disposition or Acquisition
         had occurred on the first day of such Reference Period.

                  "Effective Date" has the meaning specified in Section 4.01.

                  "Environmental Action" means any audit procedure, action,
         suit, demand, demand letter, claim, notice of non-compliance or
         violation, notice of liability or potential liability, investigation,
         proceeding, consent order or consent agreement relating in any way to
         any Environmental Law, Environmental Permit or Hazardous Materials or
         arising from alleged injury or threat of injury to health, safety or
         the environment, including (a) by any Governmental Authority for
         enforcement, cleanup, removal, response, remedial or other actions or
         damages and (b) by any Governmental Authority or any third party for
         damages, contribution, indemnification, cost recovery, compensation or
         injunctive relief.

                  "Environmental Law" means any federal, state, local or foreign
         statute, law, ordinance, rule, regulation, technical standard (norma
         tecnica or norma oficial Mexicana), code, order, judgment, decree or
         judicial agency interpretation, policy or guidance relating to
         pollution or protection of the environment, health, safety or natural
         resources, including those relating to the use, handling,
         transportation, treatment, storage, disposal, release or discharge of
         Hazardous Materials.

                  "Environmental Permit" means any permit, approval,
         identification number, license or other authorization required under
         any Environmental Law.

                  "ERISA" means the Employee Retirement Income Security Act of
         1974, as amended, and any successor statute thereto, as interpreted by
         the rules and regulations thereunder, all as the same may be in effect
         from time to time. References to sections of ERISA shall be construed
         also to refer to any successor sections.

                  "ERISA Affiliate" means an entity, whether or not
         incorporated, that is under common control with the Borrower within the
         meaning of Section 4001(a)(14) of ERISA, or is a member of a group that
         includes the Borrower and that is treated as a single employer under
         Sections 414(b) or (c) of the Code.

                  "Euro" shall mean the single currency of Participating Member
         States.

                  "Euribor" means, in relation to any Loan in Euro:

                  (a)   the applicable Screen Rate; or

                  (b)   (if no Screen Rate is available for the currency or
                        Interest Period of that Loan) the arithmetic mean of
                        the rates (rounded upwards to four decimal places) as
                        supplied to the Administrative Agent at its request
                        quoted by the Reference Banks to leading banks in the
                        European interbank market,

                  as of approximately 11:00 a.m. (New York City time) on the
Quotation Day for the offering of deposits in Euro and for a period comparable
to the Interest Period for that Loan.

                  "Euribor Business Day" means any day other than a Saturday or
         Sunday or other day on which commercial banks in New York City are
         authorized or required by law to close that is also a TARGET Day.

                  "Euribor Loan" means any Loan made or maintained at a rate of
         interest calculated with reference to Euribor.

                  "Event of Default" has the meaning specified in Section 10.01.

                  "Federal Funds Rate" means, for any relevant day, the
         overnight Federal funds rate as published for such day in the Federal
         Reserve Statistical Release H.15 (519) or any successor publication,
         or, if such rate is not published for any day, the rate for such day
         will be the rate set forth in the daily statistical release designated
         as the Composite 3:30 p.m. Quotation for U.S. Government Securities, or
         any successor publication, published by the Federal Reserve Bank of New
         York (including any such successor, the "Composite 3:30 p.m. Quotation"
         for such day under the caption "Federal Funds Effective Rate"). If on
         any relevant day the appropriate rate for such previous day is not yet
         published in either H.15 (519) or the Composite 3:30 p.m. Quotations,
         the rate for such day will be the arithmetic mean as determined by the
         Administrative Agent of the rates for the last transaction in overnight
         Federal funds arranged prior to 9:00 a.m. (New York City time) on that
         day by each of three leading brokers of recognized standing of Federal
         funds transactions in New York City selected by the Administrative
         Agent.

                  "Federal Reserve Board" means the Board of Governors of the
         Federal Reserve System of the United States.

                  "Fee Letter" means the fee letter entered into by the Borrower
         and the Lenders dated as of April 5, 2005.

                  "Foreign Currency" means each of (a) Euros, (b) Japanese Yen
         and (c) Sterling.

                  "Foreign Financial Institution" means an institution
         registered as a foreign financial institution with the Ministry of
         Finance in the Mexican Banking and Financial Institutions, Pensions,
         Retirement and Foreign Investment Funds Registry for purposes of
         Article 195, Section I of the Mexican Income Tax Law.

                  "Funding Default" means a default by a Lender pursuant to
         Section 2.01(d).

                  "Funding Losses" has the meaning specified in Section 3.06.

                  "Governmental Authority" means any branch of power or
         government or any state, department or other political subdivision
         thereof, or any governmental body, agency, authority (including any
         central bank or taxing or environmental authority), any entity or
         instrumentality (including any court or tribunal) exercising executive,
         legislative, judicial, regulatory, administrative or investigative
         functions of or pertaining to government.

                  "Guarantor" has the meaning specified in the preamble hereto.

                  "Hazardous Materials" means (a) radioactive materials,
         asbestos-containing materials, polychlorinated biphenyls, radon gas and
         (b) any other chemicals, materials or substances designated, classified
         or regulated as hazardous or toxic or as a pollutant or contaminant
         under any applicable Environmental Law.

                  "Holding Company" means, in relation to a company or a
         corporation, any other company or corporation in respect of which it
         is a Subsidiary.

                  "Indemnified Party" has the meaning specified in Section
         13.05.

                  "Interest Payment Date" means (i) with respect to any Base
         Rate Loan, the last day of each March, June, September and December,
         the date of repayment of such Loan and the Termination Date and (ii)
         with respect to any LIBOR Loan, and, if applicable, any Euribor Loan,
         the last day of each Interest Period for such Loan, the date of
         repayment of principal of such Loan and on the Termination Date. If an
         Interest Payment Date falls on a date that is not a Business Day, such
         Interest Payment Date shall be deemed to be the next succeeding
         Business Day, except that in the case of LIBOR Loans or, if applicable,
         Euribor Loans, where the next succeeding Business Day falls in the next
         succeeding calendar month, then on the immediately preceding Business
         Day.

                  "Interest Period" means, with respect to each Borrowing of
         LIBOR Loans, and, if applicable, Euribor Loans, the period (i)
         commencing (A) on the date of such Borrowing or conversion of Base Rate
         Loans into LIBOR Loans and, if applicable, Euribor Loans, or (B) in the
         case of the continuation of LIBOR Loans and, if applicable, Euribor
         Loans, for a further Interest Period, on the last day of the
         immediately preceding Interest Period and (ii) ending one, two, three
         or six months thereafter as stated by the Borrower in the applicable
         Notice of Borrowing or Notice of Continuation/Conversion; provided,
         however, that:

                  (1) any Interest Period which would otherwise end on a day
         which is not a LIBOR Business Day or, if applicable, a Euribor Business
         Day, shall, subject to paragraph (3) below, be extended to the next
         succeeding LIBOR Business Day or, if applicable, the next succeeding
         Euribor Business Day, unless such LIBOR Business Day or, if applicable,
         Euribor Business Day, falls in another calendar month, in which case
         such Interest Period shall end on the immediately preceding LIBOR
         Business Day or, if applicable, Euribor Business Day;

                  (2) any Interest Period which begins on the last LIBOR
         Business Day or, if applicable, Euribor Business Day, of a calendar
         month (or on a day for which there is no numerically corresponding day
         in the calendar month at the end of such Interest Period) shall,
         subject to paragraph (3) below, end on the last LIBOR Business Day or,
         if applicable, Euribor Business Day, of a calendar month;

                  (3) any Interest Period which would otherwise end after the
         last day of the Commitment Period shall end on the last day of the
         Commitment Period; and

                  (4) any Interest Period which would otherwise end after the
         Termination Date shall end on the Termination Date.

                  "Japanese Yen" means the lawful currency of Japan.

                  "Joint Bookrunners Fees" has the meaning specified in Section
         3.02(b).

                  "Lender" means each financial institution designated as such
         on the signature pages hereof, each Assignee which becomes a Lender
         pursuant to Section 13.06(b), each Substitute Lender and each of their
         respective successors or assigns.

                  "Lending Office" means, with respect to any Lender, (a) the
         office or offices of such Lender specified as its "Lending Office" or
         "Lending Offices" in Schedule 1.01(b) or (b) such other office or
         offices of such Lender as it may designate as its Lending Office by
         notice to the Borrower and the Administrative Agent.

                  "LIBOR" means, in relation to any Loan (other than a Loan
         denominated in Euros):

                  (a)    the applicable Screen Rate; or

                  (b)    (if no Screen Rate is available for the currency or
                         Interest Period of that Loan) the arithmetic mean of
                         the rates (rounded upwards to four decimal places) as
                         supplied to the Administrative Agent at its request
                         quoted by the Reference Banks to leading banks in the
                         London interbank market,

         as of approximately 11:00 a.m. (New York City time) on the Quotation
         Day for the offering of deposits in the currency of that Loan and for a
         period comparable to the Interest Period for that Loan.

                  "LIBOR Business Day" means any Business Day on which
         commercial banks are open in London for the transaction of
         international business, including dealings in Dollar deposits in the
         international interbank markets.

                  "LIBOR Loan" means any Loan made or maintained at a rate of
         interest calculated with reference to LIBOR.

                  "Lien" means, with respect to any asset, any mortgage, lien,
         pledge, charge, security interest or encumbrance of any kind in respect
         of such asset. The Borrower or any Subsidiary of the Borrower shall be
         deemed to own, subject to a Lien, any asset that it has acquired or
         holds subject to the interest of a vendor or lessor under any
         conditional sale agreement, Capital Lease or other title retention
         lease relating to such asset, or any account receivable transferred by
         it with recourse (including any such transfer subject to a holdback or
         similar arrangement that effectively imposes the risk of collectability
         on the transferor).

                  "Loans" has the meaning specified in Section 2.01(a) hereof.

                  "Mandatory Cost" means the percentage rate per annum
         calculated by the Administrative Agent in accordance with Exhibit G.

                  "Material Acquisition" any (a) acquisition of property or
         series of related acquisitions of property that constitutes assets
         comprising all or substantially all of an operating unit, division or
         line of business or (b) acquisition of or other investment in the
         Capital Stock of any Subsidiary or any Person which becomes a
         Subsidiary or is merged or consolidated with the Borrower or any of its
         Subsidiaries, in each case, which involves the payment of consideration
         by the Borrower and its Subsidiaries in excess of U.S.$25,000,000 (or
         the equivalent in other currencies).

                  "Material Adverse Effect" means a material adverse effect on
         (a) the business, condition (financial or otherwise), operations,
         performance, properties or prospects of the Borrower and its
         Subsidiaries taken as a whole, (b) the validity or enforceability of
         this Agreement or any of the Notes or the rights and remedies of the
         Administrative Agent or any Lender under this Agreement or any of the
         Notes or (c) the ability of the Borrower and/or the Guarantors to
         perform their Obligations under this Agreement, the Notes, the Fee
         Letter, any Notice of Borrowings, any certificates, waivers, or any
         other agreement delivered pursuant to this Agreement.

                  "Material Debt" means Debt (other than the Loans) of the
         Borrower and/or one or more of its Subsidiaries, arising in one or more
         related or unrelated transactions, in an aggregate principal amount
         outstanding exceeding U.S.$50,000,000 (or the equivalent thereof in
         other currencies).

                  "Material Disposition" means any Disposition of property or
         series of related Dispositions of property that yields gross proceeds
         to the Borrower or any of its Subsidiaries in excess of U.S.$25,000,000
         (or the equivalent in other currencies).

                  "Material Subsidiary" means, at any date, (a) each Subsidiary
         of the Borrower (if any) (i) the assets of which, together with those
         of its Subsidiaries, on a consolidated basis, without duplication,
         constitute 5% or more of the consolidated assets of the Borrower and
         its Subsidiaries as of the end of the then most recently ended fiscal
         quarter for which quarterly financial statements have been prepared or
         (ii) the operating profit of which, together with that of its
         Subsidiaries, on a consolidated basis, without duplication, constitutes
         5% or more of the consolidated operating profit of the Borrower and its
         Subsidiaries for the then most recently ended fiscal quarter for which
         quarterly financial statements have been prepared and (b) each
         Guarantor.

                  "Measurement Date" means any of the dates specified in Section
         7.14.

                  "Mexican GAAP" means, generally accepted accounting principles
         in Mexico as in effect from time to time, except that for purposes of
         Section 8.01, Mexican GAAP shall be determined on the basis of such
         principles in effect on the date hereof and consistent with those used
         in the preparation of the most recent audited financial statements
         referred to in Section 7.01. In the event that any change in Mexican
         GAAP shall occur and such change results in a change in the method of
         calculation of financial covenants, standards or terms in this
         Agreement, then the Borrower and the Administrative Agent agree to
         enter into negotiations in order to amend such provisions of this
         Agreement so as to equitably reflect such change in Mexican GAAP with
         the desired result that the criteria for evaluating the Borrower's
         financial condition shall be the same after such change as if such
         change had not been made. Until such time as such an amendment shall
         have been executed and delivered by the Borrower, the Administrative
         Agent and the Required Lenders, all financial covenants, standards and
         terms in this Agreement shall continue to be calculated or construed as
         if such change in Mexican GAAP had not occurred.

                  "Mexico" means the United Mexican States.

                  "Ministry of Finance" means the Ministry of Finance and
         Public Credit of Mexico.

                  "Notice of Borrowing" has the meaning specified in Section
         2.01(c).

                  "Notice of Extension/Conversion" has the meaning specified in
         Section 2.01(e).

                  "Note" means a promissory note of the Borrower in
         substantially the form of Exhibit A, evidencing the obligation of the
         Borrower to repay the Loans made by a Lender.

                  "Obligations" means, (a) with respect to the Borrower, all of
         its indebtedness, obligations and liabilities to the Lenders, the Joint
         Bookrunners and the Administrative Agent now or in the future existing
         under or in connection with the Transaction Documents, whether direct
         or indirect, absolute or contingent, due or to become due, and (b) with
         respect to each Guarantor, all of its indebtedness, obligations and
         liabilities to the Lenders, the Joint Bookrunners and the
         Administrative Agent now or in the future existing under or in
         connection with the Transaction Documents, in each case whether direct
         or indirect, absolute or contingent, due or to become due.

                  "Obligors" means the Borrower and each Guarantor.

                  "Other Taxes" means any present or future stamp or documentary
         taxes or any other excise or property taxes, charges, imposts, duties,
         fees, or similar levies which arise from any payment made hereunder or
         under the Notes or from the execution, delivery, registration,
         performance or enforcement of, or otherwise with respect to, this
         Agreement or any other Transaction Document and which are imposed,
         levied, collected or withheld by any Governmental Authority.

                  "Participant" has the meaning specified in Section 13.06(d).

                  "Participating Member State" means any member state of the
         European Union that adopts or has adopted the euro as its lawful
         currency in accordance with legislation of the European Union relating
         to Economic and Monetary Union.

                  "Pension Plan" means a "pension plan", as such term is defined
         in Section 3(2) of ERISA, which is subject to Title IV of ERISA (other
         than a multiemployer plan as defined in Section 4001(a)(3) of ERISA),
         and to which any Credit Party or any of its ERISA Affiliates has any
         liability.

                  "Permitted Liens" has the meaning specified in Section 8.02.

                  "Person" means an individual, partnership, corporation,
         business trust, joint stock company, limited liability company, trust,
         unincorporated association, joint venture or other business entity or
         Governmental Authority, whether or not having a separate legal
         personality.

                  "Prime Rate" means the average of the rate of interest
         publicly announced by each of the Reference Banks from time to time as
         its Prime Rate in New York City, the Prime Rate to change as and when
         such designated rate changes. The Prime Rate is not intended to be the
         lowest rate of interest charged by the Administrative Agent or any
         Lender in connection with extensions of credit to debtors of any class,
         or generally.

                  "Process Agent" has the meaning specified in Section 13.12(a).

                  "Qualified Receivables Transaction" means any transaction or
         series of transactions that may be entered into by the Borrower or any
         Subsidiary pursuant to which the Borrower or any Subsidiary may sell,
         convey or otherwise transfer to a Special Purpose Vehicle (in the case
         of a transfer by the Borrower or any other Seller) and any other person
         (in the case of a transfer by a Special Purpose Vehicle), or may grant
         a security interest in, any Receivables Program Assets (whether now
         existing or arising in the future); provided that:

                   (a) no portion of the indebtedness or any other obligations
         (contingent or otherwise) of a Special Purpose Vehicle (i) is
         guaranteed by the Borrower or any other Seller or (ii) is recourse to
         or obligates the Borrower or any other Seller in any way such that the
         requirements for off balance sheet treatment under Financial Accounting
         Standards Bulletin 140 are not satisfied; and

                   (b) the Borrower and the other Sellers do not have any
         obligation to maintain or preserve the financial condition of a Special
         Purpose Vehicle or cause such entity to achieve certain levels of
         operating results.

                  "Quotation Day" means, in relation to any period in which an
         interest rate is to be determined:

                   (a) (if the currency is Sterling) the first day of that
         period;

                   (b) (if the currency is Euro) two TARGET Days before the
         first day of that period; or

                   (c) (for any other currency) two Business Days before the
         first day of that period.

                  "Receivables" means all rights of the Borrower or any other
         Seller to payments (whether constituting accounts, chattel paper,
         instruments, general intangibles or otherwise, and including the right
         to payment of any interest or finance charges), which rights are
         identified in the accounting records of the Borrower or such Seller as
         accounts receivable.

                  "Receivables Documents" means (a) a receivables purchase
         agreement, pooling and servicing agreement, credit agreement,
         agreements to acquire undivided interests or other agreement to
         transfer, or create a security interest in, Receivables Program Assets,
         in each case as amended, modified, supplemented or restated and in
         effect from time to time entered into by the Borrower, another Seller
         and/or a Special Purpose Vehicle, and (b) each other instrument,
         agreement and other document entered into by the Borrower, any other
         Seller or a Special Purpose Vehicle relating to the transactions
         contemplated by the items referred to in clause (a) above, in each case
         as amended, modified, supplemented or restated and in effect from time
         to time.

                  "Receivables Program Assets" means (a) all Receivables which
         are described as being transferred by the Borrower, another Seller or a
         Special Purpose Vehicle pursuant to the Receivables Documents, (b) all
         Receivables Related Assets in respect of such Receivables, and (c) all
         collections (including recoveries) and other proceeds of the assets
         described in the foregoing clauses.

                  "Receivables Program Obligations" means (a) notes, trust
         certificates, undivided interests, partnership interests or other
         interests representing the right to be paid a specified principal
         amount from the Receivables Program Assets and (b) related obligations
         of the Borrower, a Subsidiary of the Borrower or a Special Purpose
         Vehicle (including, without limitation, rights in respect of interest
         or yield hedging obligations, breach of warranty claims and expense
         reimbursement and indemnity provisions).

                  "Receivables Related Assets" means with respect to any
         "Receivables" (i) any rights arising under the documentation governing
         or relating to such Receivables (including rights in respect of liens
         securing such Receivables), (ii) any proceeds of such Receivables,
         (iii) other assets which are customarily transferred or in respect of
         which security interests are customarily granted in connection with
         asset securitization transactions involving accounts receivable.

                  "Reference Banks" means two banks in the London interbank
         market, initially Barclays Bank PLC, and Citibank, N.A..

                  "Regulation T, U, or X" means Regulation T, U, or X,
         respectively, of the Board of Governors of the Federal Reserve System
         as from time to time in effect and any successor to all or a portion
         thereof.

                  "Required Lenders" means, at any time, Lenders (other than
         Defaulting Lenders) whose Total Exposures, when aggregated, equal or
         exceed 50.01% of the Aggregate Committed Amount (or, if the Commitments
         shall have terminated, the Aggregate Exposure) minus the Total Exposure
         of any Defaulting Lender at such time.

                  "Requirement of Law" means, as to any Person, any law,
         ordinance, rule, regulation or requirement of any Governmental
         Authority, in each case applicable to or binding upon such Person or
         any of its property or to which such Person or any of its property is
         subject.

                  "Responsible Officer" of any Person means the Chief Financial
         Officer, the Corporate Planning and Finance Director, the Finance
         Director or the Comptroller of such Person.

                  "Revaluation Date" means each of the following: (a) in
         connection with the making of any Loan, the Business Day which is the
         earliest of the date such Loan is made or the date the rate is set, as
         applicable; (b) in connection with any extension or conversion or
         continuation of an existing Loan, the Business Day that is the earlier
         of the date such Loan is extended, converted or continued, or the date
         the rate is set, as applicable, in connection with any extension,
         conversion or continuation; (c) the date of any reduction of the
         Aggregate Committed Amount; and (d) such additional dates as the
         Administrative Agent or the Required Lenders shall deem necessary.

                  "Screen Rate" means:

                  (a)    in relation to LIBOR, the British Bankers Association
                         Interest Settlement Rate for the relevant currency
                         and period; and

                  (b)    in relation to Euribor, the percentage rate per annum
                         determined by the Banking Federation of the European
                         Union for the relevant period,

                  displayed on the appropriate page of the Reuters screen. If
         the agreed page is replaced or service ceases to be available, the
         Administrative Agent may specify another page or service displaying the
         appropriate rate after consultation with the Borrower and the Lenders.

                  "Seller" means the Borrower and any Subsidiary or other
         affiliate of the Borrower (other than a Subsidiary or affiliate that is
         a Special Purpose Vehicle) which is a party to a Receivables Document.

                  "Special Purpose Vehicle" means a trust, partnership or other
         special purpose person established by the Borrower and/or its
         Subsidiaries to implement a Qualified Receivables Transaction.

                  "Spot Rate" means, on any date, with respect to any Foreign
         Currency, the rate quoted by the Administrative Agent as the spot rate
         for the purchase by the Administrative Agent of such Foreign Currency
         with Dollars through its principal foreign exchange trading office at
         approximately 11:00 a.m. (New York City time) on the date two Business
         Days prior to the date as of which the foreign exchange computation is
         made.

                  "Sterling" means the lawful currency of the United Kingdom.

                  "Subsidiary" means with respect to any Person, any
         corporation, partnership, joint venture, limited liability company,
         trust, estate or other entity of which (or in which) more than 50% of
         (a) in the case of a corporation, the issued and outstanding capital
         stock having ordinary voting power to elect a majority of the board of
         directors of such corporation (irrespective of whether at the time
         capital stock of any other class or classes of such corporation shall
         or might have voting power upon the occurrence of any contingency not
         in the control of such Person), (b) in the case of a limited liability
         company, partnership or joint venture, the interest in the capital or
         profits of such limited liability company, partnership or joint venture
         or (c) in the case of a trust or estate, the beneficial interest in
         such trust or estate, is at the time directly or indirectly owned or
         controlled by (X) such Person, (Y) such Person and one or more of its
         other Subsidiaries or (Z) one or more of such Person's other
         Subsidiaries. For purposes of determining whether a trust formed in
         connection with a Qualified Receivables Transaction is a Subsidiary,
         notes, trust certificates, undivided interests, partnership interests
         or other interests of the type described in clause (a) of the
         definition of Receivables Program Obligations shall be counted as
         beneficial interests in such trust.

                  "Substitute Lender" means a commercial bank or other financial
         institution, acceptable to the Borrower, the Lenders and the
         Administrative Agent, each in its sole discretion, and approved by the
         Joint Bookrunners (including such a bank or financial institution that
         is already a Lender hereunder), which assumes all or a portion of the
         Commitment of a Lender pursuant to the terms of this Agreement.

                  "TARGET" means Trans-European Automated Real-time Gross
         Settlement Express Transfer payment system.

                  "TARGET Day" means any day on which TARGET is open for the
         settlement of payments in Euro.

                  "Taxes" means any and all present or future income, stamp,
         sales or other taxes, levies, imposts, duties, deductions, fees,
         charges or withholdings, and all liabilities with respect thereto
         collected, withheld or assessed by any Governmental Authority,
         excluding, (a) in the case of each Lender the Administrative Agent, and
         any Tax Related Persons, such taxes (including income taxes or
         franchise taxes) as are imposed on or measured by its net income or
         capital by the jurisdiction (or any political subdivision thereof)
         under the laws of which it is organized or maintains a Lending Office
         or its principal office or performs its functions as Administrative
         Agent or as are imposed on such Lender or the Administrative Agent or
         any of their Tax Related Persons (as the case may be) as a result of a
         present or former connection between the Lender, the Administrative
         Agent, or such Tax Related Person and the jurisdiction of the
         Governmental Authority imposing such tax or any political subdivision
         or taxing authority thereof or therein (other than any such connection
         arising solely from the Lender or such Administrative Agent having
         executed, delivered or performed its obligations or received a payment
         under, or enforced, the Transaction Documents) and (b) any taxes,
         levies, imposts, deductions, charges or withholdings to the extent
         imposed by reason of any Lender's or Administrative Agent's failure to
         (i) register as a Foreign Financial Institution with the Ministry of
         Finance and (ii) be a resident (or have a principal office which is a
         resident, if such Lender lends through a branch or agency) for tax
         purposes of a jurisdiction with which Mexico has in effect a treaty for
         the avoidance of double taxation (but only in respect of those taxes
         payable in excess of taxes that would have been payable had such Lender
         complied with those conditions).

                  "Tax Related Person" means any Person whose income is
         realized through, or determined by reference to, the Administrative
         Agent or a Lender[; provided that no Lender shall be deemed a Tax
         Related Person of the Administrative Agent, and the Administrative
         Agent shall not be deemed a Tax Related Person of any Lender].

                  "Temporary Investments" means, at any date, all amounts that
         would, in conformity with Mexican GAAP consistently applied, be set
         forth opposite the caption "cash and cash equivalent" ("efectivo y
         equivalentes de efectivo") or "temporary investments" ("inversiones
         temporales") on a consolidated balance sheet of the Borrower at such
         date.

                  "Term Credit Agreement" has the meaning specified in the
         recitals hereto.

                  "Termination Date" means the date which is the earliest of (a)
         the date five years following the Effective Date, or (b) if no Loans
         are outstanding, the date the Commitments are terminated in accordance
         with this Agreement.

                  "Total Exposure" means at any time, as to any Lender, the
         amount of its Commitment at such time, or, if the Commitments shall
         have terminated, its Total Outstandings at such time.

                  "Total Outstandings" means at any time, as to any Lender, the
         Dollar Amount of the sum of the aggregate outstanding principal amount
         of such Lender's Loans.

                  "Transaction Documents" means a collective reference to this
         Credit Agreement, the Notes, any Assignment and Assumption Agreement,
         the Fee Letter, and all other related agreements and documents issued
         or delivered hereunder or thereunder or pursuant hereto or thereto.

                  "United States" means the United States of America, including
         the States and the District of Columbia, but excluding its territories
         and possessions.

                  "Up-Front Fee" has the meaning specified in Section 3.02(c).

                  "Utilization" means, for any Utilization Period, the
         percentage obtained by dividing the Average Outstanding Loans by the
         Average Aggregate Committed Amount.

                  "Utilization Period" means each calendar quarter, except that
         the initial Utilization Period shall commence on the Effective Date and
         end on June 30, 2005, and the final Utilization Period shall end on the
         Termination Date.

                  "Value of Debt Currency Derivatives" means, on any given date,
         the aggregate mark-to-market value of Debt Currency Derivatives,
         expressed as a positive number (if, on a mark-to-market basis, such
         aggregate amount reflects a net amount owed to the Borrower and its
         subsidiaries) or as a negative number (if, on a mark-to-market basis,
         such aggregate amount reflects a net amount owed by the Borrower and
         its subsidiaries).

                  "Welfare Plan" means a "welfare plan", as such term is
         defined in Section 3(1) of ERISA.

         1.02     Other Definitional Provisions.

                  (a) The terms "including" and "include" are not limiting and
         mean "including but not limited to" and "include but are not limited
         to".

                  (b) The words "hereof", "herein" and "hereunder" and words of
         similar import when used in this Agreement refer to this Agreement as a
         whole and not to any particular provision of this Agreement, and
         Article, Section, paragraph, Schedule and Exhibit references are to
         this Agreement unless otherwise specified.

                  (c) The meanings given to terms defined herein are equally
         applicable to both the singular and plural forms of such terms.

                  (d) In this Agreement, in the computation of periods of time
         from a specified date to a later specified date, the word "from" means
         "from and including" and the words "to" and "until" each means "to but
         excluding". Periods of days referred to in this Agreement shall be
         counted in calendar days unless Business Days, LIBOR Business Days,
         Euribor Business Days or TARGET Days are expressly prescribed.

                  (e) The captions and headings of this Agreement are for
         convenience of reference only and shall not affect the interpretation
         of this Agreement.

         1.03   Accounting Terms and Determinations.  All accounting and
financing terms not specifically defined herein shall be construed in
accordance with Mexican GAAP.

                                   ARTICLE II
                               THE LOAN FACILITIES
                               -------------------

         2.01  Revolving Loans.

         (a) Commitment. During the Commitment Period, subject to the terms and
    conditions hereof, each Lender, severally and not jointly with any other
    Lender, agrees to make revolving credit loans in Dollars and/or in Foreign
    Currencies (as specified by the Borrower) (the "Loans") to the Borrower from
    time to time in an aggregate principal Dollar Amount at any one time
    outstanding not to exceed such Lender's Commitment; provided that (i) with
    regard to the Lenders collectively, the aggregate principal amount of Loans
    outstanding at any one time shall not exceed the Aggregate Committed Amount,
    and (ii) with regard to each Lender individually, the aggregate principal
    Dollar Amount of such Lender's Commitment Percentage of all the Loans
    outstanding at any time shall not exceed the Commitment of such Lender.
    Loans may consist of Base Rate Loans, LIBOR Loans, Euribor Loans, or a
    combination thereof, as the Borrower may request, and may be repaid, prepaid
    and reborrowed in accordance with the provisions hereof; provided that (A)
    Loans denominated in Japanese Yen or Sterling shall consist solely of LIBOR
    Loans, subject to Section 3.07 and Section 3.09, (B) Loans denominated in
    Euro shall consist solely of Euribor Loans, subject to Section 3.07 and
    Section 3.09, and (C) if any Loan shall be made on the Effective Date or
    within three (3) Business Days thereafter such Loan may be a LIBOR Loan or
    Euribor Loan only if the Borrower delivers to the Administrative Agent a
    funding indemnity letter in form and substance satisfactory to the
    Administrative Agent.

         (b) Loans and Borrowings. Each Loan shall be made as part of a
    Borrowing consisting of Loans made by the Lenders ratably in accordance with
    their Commitment Percentage. The failure of any Lender to make any Loan
    required to be made by it shall not relieve any other Lender of its
    obligations hereunder; provided that the Commitments of the Lenders are
    several and no Lender shall be responsible for any other Lender's failure to
    make Loans as required.

         (c) Revolving Loan Borrowings.

             (i) Requests for Borrowings. (A) To request a Borrowing, the
    Borrower shall notify the Administrative Agent of such request by telephone,
    not later than 12:00 p.m., New York City time, (1) in the case of a request
    for a Base Rate Loan denominated in Dollars, on the Business Day prior to
    the day the Borrower designates therein as the Disbursement Date, and (2) in
    the case of a request for a LIBOR Loan or Euribor Loan, on the fourth LIBOR
    Business Day or Euribor Business Day, as applicable, prior to the
    Disbursement Date. Each such telephonic Borrowing request shall be
    irrevocable and shall be confirmed promptly by hand delivery or facsimile to
    the Administrative Agent of a written notice (the "Notice of Borrowing") in
    the form attached as Exhibit B approved by the Administrative Agent and
    signed by a duly authorized representative of the Borrower. Each such
    telephonic request and written Notice of Borrowing shall specify the
    following information in compliance with this Section 2.01:

                         (1)  that a Loan is requested;

                         (2)  the requested Disbursement Date, which shall be a
                              Business Day;

                         (3)  the currency and the aggregate principal amount to
                              be borrowed; and

                         (4)  whether the Borrowing shall be composed of Base
                              Rate Loans, LIBOR Loans, Euribor Loans, or a
                              combination thereof, and if LIBOR Loans or Euribor
                              Loans are requested, the Interest Period(s)
                              therefor.

                       (B) If the Borrower shall fail to specify in any such
                  Notice of Borrowing (i) an applicable Interest Period in
                  the case of a LIBOR Loan or Euribor Loan, then such notice
                  shall be deemed to be a request for an Interest Period of
                  one (1) month, (ii) the type of Loan requested, then such
                  notice shall be deemed to be a request for a LIBOR Loan
                  hereunder, provided, however, that if the notice requests
                  Euro, then such notice shall be deemed to be a request for
                  a Euribor Loan hereunder, or (iii) the currency requested,
                  then such notice shall be deemed to be a request for a
                  Loan in Dollars.

                       (C) Not later than 1:00 p.m. New York City time on
                  the Business Day on which the Notice of Borrowing is
                  received, the Administrative Agent shall promptly advise
                  each Lender of the details thereof and shall advise each
                  Lender of the amount of such Lender's Loan to be made as
                  part of the requested Borrowing.

             (ii) Minimum Amounts. Each Loan shall be in a minimum aggregate
    principal Dollar Amount of $5,000,000, in the case of LIBOR Loans or Euribor
    Loans, or $1,000,000 (or the remaining Aggregate Committed Amount, if less),
    in the case of Base Rate Loans, and integral multiples of $1,000,000 in
    excess thereof.

             (iii) Exchange Rate. For purposes of determining availability
    hereunder, the rate of exchange for any Foreign Currency shall be the Spot
    Rate.

         (d) Funding of Borrowings. Each Lender shall make each Loan to be made
    by it hereunder on the Disbursement Date by wire transfer of immediately
    available funds by 1:00 p.m., New York City time, to the account held by the
    Administrative Agent for such purpose most recently designated by it by
    notice to the Lenders. The Administrative Agent will make such Loans
    available to the Borrower by promptly crediting on the same day the amounts
    so received, in like funds, to the account designated by the Borrower in the
    applicable Notice of Borrowing (the "Funding Account"). Unless the
    Administrative Agent shall have received notice from a Lender, prior to the
    time of any Borrowing, that such Lender will not make available to the
    Administrative Agent such Lender's share of such Borrowing, the
    Administrative Agent may, but shall not be required to, assume that such
    Lender has made such share available on such date in accordance with Section
    2.01(c) and may in its sole discretion, but shall not be required to, in
    reliance upon such assumption, make available to the Borrower a
    corresponding amount. If any Lender either does not make its share of the
    applicable Borrowing available to the Administrative Agent or delays in
    doing so past 4:00 p.m., New York City time, on the Disbursement Date (such
    Lender (until it makes such share available) hereinafter referred to as a
    "Defaulting Lender"), then the Administrative Agent shall immediately notify
    the Borrower of such default. If the Administrative Agent has, in its sole
    discretion, made available to the Borrower an amount corresponding to such
    Defaulting Lender's share of the Borrowing, then the Defaulting Lender and
    the Borrower jointly and severally agree to pay to the Administrative Agent
    forthwith on demand such corresponding amount with interest thereon, on each
    day from and including the date such amount is made available to the
    Borrower to but excluding the date of payment to the Administrative Agent,
    at:

               (i)  in the case of the Defaulting Lender, the Federal Funds
                    Rate; or

               (ii) in the case of the Borrower, the interest rate applicable to
                    Base Rate Loans.

    If, with respect to the immediately preceding sentence, the Borrower pays
    such amount to the Administrative Agent, then the Defaulting Lender shall
    indemnify and hold harmless the Borrower from and against such amount, and
    if such Defaulting Lender pays such amount to the Administrative Agent, then
    such amount shall constitute such Defaulting Lender's Loan included in such
    Borrowing. If the Administrative Agent, in its discretion, does not make
    available to the Borrower an amount corresponding to the Defaulting Lender's
    share of the Borrowing then (x) the Defaulting Lender shall indemnify and
    hold harmless the Borrower from and against such amount as well as any and
    all losses, liabilities (including liabilities for penalties), actions,
    suits, judgments, demands, costs, and expenses (including reasonable fees
    and disbursements for counsel including allocated cost of internal counsel)
    resulting from any failure on the part of the Defaulting Lender to provide,
    or from any delay in providing, the Administrative Agent with such
    Defaulting Lender's pro rata share of the Borrowing, but no Lender shall be
    so liable for any such failure on the part of or caused by any other Lender
    or the Administrative Agent or the Borrower, and (y) such share of the
    applicable Borrowing that was not made available shall (until made
    available) be disregarded for purposes of calculating the Commitment Fee
    pursuant to Section 3.02 and in the event such share has not been
    disregarded for such purposes, any amount paid by the Borrower in respect of
    such share shall be reimbursed to the Borrower by the applicable Defaulting
    Lender with interest thereon at the Federal Funds Rate for each day from and
    including the date such share of the Commitment Fee was paid by the Borrower
    to but excluding the date of reimbursement by the Defaulting Lender. The
    Administrative Agent, upon notice by the Borrower that such reimbursement is
    due from the applicable Defaulting Lender, shall notify such Defaulting
    Lender of the amount of the reimbursement due, including interest thereon,
    and shall forward such amount to the Borrower upon receipt from the
    Defaulting Lender. The Administrative Agent shall not, however, be liable to
    the Borrower for any failure by any Defaulting Lender to reimburse the
    Borrower for any amounts in respect of such Commitment Fee.

         (e) Extension and Conversion. The Borrower shall have the option, on
    any Business Day, to extend existing Loans into a subsequent permissible
    Interest Period or to convert Loans denominated in Dollars into Loans of
    another interest rate type or to convert Loans in Foreign Currencies into
    Dollars or to convert Loans in Dollars into Foreign Currencies; provided,
    however, that (i) Loans in Foreign Currencies may be converted into Dollars
    and Loans in Dollars may be converted into Foreign Currencies only on the
    last day of the Interest Period applicable thereto, (ii) except as provided
    in Section 3.06, LIBOR Loans and Euribor Loans may be converted into Base
    Rate Loans only on the last day of the Interest Period applicable thereto
    unless the Borrower agrees to pay all Funding Losses, (iii) LIBOR Loans and
    Euribor Loans may be extended, and Base Rate Loans may be converted into
    LIBOR Loans or Euribor Loans, only if the conditions in Section 4.02 have
    been satisfied, (iv) Loans extended as, or converted into, LIBOR Loans or
    Euribor Loans shall be subject to the terms of the definition of "Interest
    Period" set forth in Section 1.01 and shall be in such minimum amounts as
    provided in Section 2.01(c)(ii), and (v) any request for extension or
    conversion of a LIBOR Loan or Euribor Loan that shall fail to specify an
    Interest Period shall be deemed to be a request for an Interest Period of
    one month. Each such extension or conversion shall be effected by the
    Borrower by giving a written notice (or telephone notice promptly confirmed
    in writing) (a "Notice of Extension/Conversion") to the Administrative Agent
    prior to 10:00 a.m., New York City time, on the LIBOR Business Day of or the
    Euribor Business Day of, as applicable, in the case of the conversion of a
    LIBOR Loan or Euribor Loan into a Base Rate Loan, and on the third LIBOR
    Business Day prior to or the third Euribor Business Day prior to, as
    applicable, in the case of the extension of a LIBOR Loan as, or conversion
    of a Base Rate Loan into, a LIBOR Loan or the extension of a Euribor Loan
    as, or conversion of a Base Rate Loan into, a Euribor Loan, the date of the
    proposed extension or conversion, substantially in the form of Exhibit C
    hereto, specifying (A) the date of the proposed extension or conversion, (B)
    the Loans to be so extended or converted, (C) the types of Loans into which
    such Loans are to be converted, (D) if appropriate, the applicable Interest
    Periods with respect thereto, and (E) the currency of such Loans. Each
    Notice of Extension/Conversion shall be irrevocable and shall constitute a
    representation and warranty by the Borrower of the matters specified in
    Sections 4.02(a) through (d). So long as there is no Default or Event of
    Default, in the event the Borrower does not request extension or conversion
    of any LIBOR Loan or Euribor Loan in accordance with this Section, or any
    such conversion or extension is not required by this Section, then such
    LIBOR Loan or Euribor Loan shall be continued as a Base Rate Loan at the end
    of each Interest Period applicable thereto, until the Borrower selects an
    alternate Interest Period or converts such Loans to LIBOR Loans or Euribor
    Loans. It is hereby understood and agreed that such failure by the Borrower
    to request such extension or conversion resulting in the automatic
    conversion of a LIBOR Loan or a Euribor Loan into a Base Rate Loan shall
    also constitute a representation and warranty by the Borrower of the matters
    specified in Sections 4.02(a) through (d). In the event any LIBOR Loans or
    Euribor Loans are not permitted to be converted into another LIBOR Loan or
    Euribor Loan hereunder, such LIBOR Loans or Euribor Loans shall
    automatically be converted to Base Rate Loans at the end of the applicable
    Interest Period with respect thereto. The Administrative Agent shall give
    each Lender notice as promptly as practicable of any such proposed extension
    or conversion affecting any Loan.

         (f) Repayment. The principal amount of all Loans shall be due and
    payable in full on the Termination Date in the same currency denomination as
    the Loan was made or if different converted into and outstanding.

         (g) Voluntary Prepayment. Loans may be repaid in whole or in part
    without premium or penalty in the same currency denomination as the Loan was
    made or if different converted into and outstanding; provided that (i) Loans
    may be prepaid only upon five (5) Business Days' prior written notice to the
    Administrative Agent, (ii) prepayments of LIBOR Loans or Euribor Loans must
    be accompanied by payment of any Funding Losses under Section 3.06, and
    (iii) partial prepayments shall be in minimum principal Dollar Amounts of
    $10,000,000.

         (h) Mandatory Prepayment. If on any date the Administrative Agent
    notifies the Borrower that the Aggregate Exposure (determined as of the most
    recent Revaluation Date) shall exceed 103% of the Aggregate Committed
    Amount, the Borrower shall as soon as practicable, but in any event no later
    than five Business Days after receipt of such notice, prepay the outstanding
    principal amount of any Loans owing by the Borrower in an aggregate amount
    sufficient to reduce such sum to an amount not to exceed 100% of the
    Aggregate Committed Amount on such date together with any interest accrued
    to the date of such prepayment on the aggregate principal amount of the
    Borrowing prepaid. The Administrative Agent shall give prompt notice of any
    prepayment required under this Section 2.01(h) to the Borrower, and shall
    provide prompt notice to the Borrower of any such notice of required
    prepayment the Administrative Agent receives from any Lender. Any such
    prepayment shall be allocated at the Lender's discretion.

         (i) Revolving Notes. Each Lender's Commitment Percentage of the Loans
    shall be evidenced by a duly executed revolving note in favor of such Lender
    in the form of Exhibit A attached hereto.

         (j) Maximum Number of LIBOR Loans and Euribor Loans. The Borrower will
    be limited to a maximum number of ten (10) LIBOR Loans and Euribor Loans
    outstanding at any time. For purposes hereof, LIBOR Loans and Euribor Loans
    with separate or different Interest Periods will be considered as separate
    LIBOR Loans, or, as applicable, Euribor Loans even if their Interest Periods
    expire on the same date.

          2.02   Interest.

         (a) Base Rate Loans. Each Base Rate Loan shall bear interest at a rate
    per annum equal to the Base Rate plus the Applicable Margin.

         (b) LIBOR Loans. (i) Each LIBOR Loan (other than LIBOR Loans
    denominated in Sterling) shall bear interest at a rate per annum equal to
    LIBOR plus the Applicable Margin. (ii) Each LIBOR Loan denominated in
    Sterling shall bear interest at a rate per annum equal to LIBOR plus the
    Applicable Margin, plus Mandatory Costs, if any.

         (c) Euribor Loans. Each Euribor Loan shall bear interest at a rate per
    annum equal to Euribor plus the Applicable Margin, plus Mandatory Costs, if
    any.

         (d) Default Interest. Notwithstanding the foregoing, if any principal
    of, or interest on, any Loan or any fee or other amount payable by the
    Borrower hereunder is not paid when due, whether at stated maturity, upon
    acceleration, by mandatory prepayment or otherwise, such overdue amount
    shall bear interest, after as well as before judgment, at a rate per annum
    equal to (i) in the case of overdue principal of any Loan, 2% plus the rate
    otherwise applicable to such Loan as provided above or (ii) in the case of
    any other amount, 2% plus the rate applicable to Base Rate Loans as provided
    in Section 2.02(a).

         (e) Payment of Interest. Accrued interest on each Loan shall be payable
    in arrears on each Interest Payment Date for such Loan and upon termination
    of the Commitments; provided that (i) in the event of any repayment or
    prepayment of any Loan, accrued interest on the principal amount repaid or
    prepaid shall be payable on the date of such repayment or prepayment and
    (ii) in the event of any conversion of any LIBOR Loan or Euribor Loan prior
    to the end of the Interest Period therefore, accrued interest on such Loan
    shall be payable on the effective date of such conversion. Interest with
    respect to each Loan shall be paid in the currency in which such Loan is
    denominated.

         (f) Computation. All interest hereunder shall be computed on the basis
    of a year of 360 days, except that (i) interest computed by reference to the
    Base Rate at times when the Base Rate is based on the Prime Rate shall be
    computed on the basis of a year of 365 days (or 366 days in a leap year) and
    (ii) where the interest is to accrue in respect of any amount denominated in
    Sterling, interest shall be computed on the basis of a year of 365 days, and
    in each case shall be payable for the actual number of days elapsed
    (including the first day but excluding the last day). The applicable Base
    Rate, LIBOR or Euribor shall be determined by the Administrative Agent, and
    such determination shall be conclusive absent manifest error.

                                  ARTICLE III
                          TERMINATION AND REDUCTION OF
                  COMMITMENTS; FEES, TAXES, PAYMENT PROVISIONS
                  --------------------------------------------

         3.01  Termination or Reduction of Commitments.

         (a) Mandatory Termination. The Commitments shall terminate on the
    Termination Date.

         (b) Voluntary Termination. Upon at least five Business Days' notice to
    the Administrative Agent and the Joint Bookrunners, but no sooner than six
    months after the Effective Date, the Borrower may terminate the existing
    Commitments; provided, however, that the existing Commitments may not be
    terminated so long as (i) any Loan is outstanding or (ii) any interest, fee
    or expenses remain unpaid.

         3.02  Fees.

         (a) Commitment Fee. The Borrower agrees to pay to the Administrative
    Agent, quarterly in arrears for each Utilization Period, for the account of
    the Lenders ratably in accordance with their Commitment Percentage a
    commitment fee (the "Commitment Fee") (i) if the Utilization is greater than
    or equal to 50%, at the rate of 30% of the Applicable Margin per annum for
    the relevant Utilization Period on the average Available Commitments for the
    Utilization Period or (ii) if the Utilization is less than 50%, at the rate
    of 40% of the Applicable Margin per annum for the relevant Utilization
    Period on the average Available Commitments for the Utilization Period. The
    Commitment Fee shall accrue from the Effective Date to the Termination Date
    and shall be payable in arrears on the last day in each of March, June,
    September, and December and on the Termination Date provided that if any day
    is not a Business Day, then the Commitment Fee shall be payable on the next
    succeeding Business Day.

         (b) Joint Bookrunners Fees. The Borrower will pay to the Joint
    Bookrunners, for the sole account of the Joint Bookrunners, the arrangement
    fees (the "Joint Bookrunners Fees") and other fees in the amounts and at the
    times agreed to by the Joint Bookrunners and the Borrower in the Fee Letter.

         (c) Up-Front Fee. The Borrower will pay to the Administrative Agent,
    for the account of the Lenders, an up-front fee (the "Up-front Fee") as
    agreed to by the Borrower and the Joint Bookrunners.

         3.03  Computation of Fees. All fees calculated on a per annum basis
    shall be computed on the basis of a year of 360 days and paid for the actual
    number of days elapsed.

         3.04  Taxes.

         (a) Any and all payments by the Borrower or a Guarantor, as the case
    may be, to any Lender, the Joint Bookrunners or the Administrative Agent
    under this Agreement and the other Transaction Documents shall be made free
    and clear of, and without deduction or withholding for or on account of, any
    Taxes. In addition, the Borrower shall promptly pay all Other Taxes.

         (b) Except as otherwise provided in Section 3.04(c), the Borrower and
    the Guarantors jointly and severally agree to indemnify and hold harmless
    each Lender and the Administrative Agent for the full amount of Taxes or
    Other Taxes (without duplication) excluding in each case United States
    backup withholding Taxes imposed because of payee underreporting (including
    any Taxes or Other Taxes (without duplication) imposed by any jurisdiction
    on amounts payable under this Section 3.04) paid by or assessed against any
    Lender or the Administrative Agent in respect of any sum payable hereunder
    and any liability (including penalties, interest, additions to tax and
    expenses) arising therefrom or with respect thereto, whether or not such
    Taxes or Other Taxes were correctly or legally asserted, except to the
    extent that such penalties, interest, additions to tax or expenses are
    incurred solely as a result of any gross negligence or willful misconduct of
    such Lender or Administrative Agent, as the case may be. Payment under this
    indemnification shall be made within 30 days after the date any Lender or
    the Administrative Agent makes written demand therefor, setting forth in
    reasonable detail the basis and calculation of such amounts (such written
    demand shall be presumed correct, absent significant error).

         (c) If the Borrower or the Guarantors, as the case may be, shall be
    required by law to deduct or withhold any Taxes or Other Taxes from or in
    respect of any sum payable hereunder to any Lender or the Administrative
    Agent, then:

               (i) the sum payable shall be increased as necessary so that after
         making all required deductions and withholdings (including deductions
         and withholdings applicable to additional sums payable under this
         Section 3.04, but excluding in each case United States backup
         withholding Taxes imposed because of payee underreporting) such Lender
         or the Administrative Agent receives an amount equal to the sum it
         would have received had no such deductions or withholdings been made;
         provided, that, the Borrower shall not be required to increase any
         amounts payable to such Lender or the Administrative Agent to the
         extent such increased amounts would be in excess of the amounts that
         would have been payable to such Lender or the Administrative Agent had
         such Lender or Administrative Agent complied with the requirements of
         Section 3.04(f) or to the extent provided in Section 3.04(g);

               (ii) the Borrower or the Guarantors, as the case may be, shall
         make such deductions and withholdings; and

               (iii) the Borrower or the Guarantors, as the case may be, shall
         pay the full amount deducted or withheld to the relevant taxing
         authority or other authority in accordance with applicable law.

         (d) Within 30 days after the date of any payment by the Borrower or the
    Guarantors, as the case may be, of Taxes or Other Taxes, the Borrower or the
    Guarantors, as the case may be, shall furnish to the Administrative Agent
    the original or a certified copy of a receipt evidencing payment thereof or
    other evidence of payment reasonably satisfactory to the Administrative
    Agent.

         (e) If the Borrower or the Guarantors, as the case may be, is required
    to pay additional amounts to the Administrative Agent or any Lender pursuant
    to Section 3.04(c) other than amounts related to the withholding of Mexican
    tax at the rate applicable to interest payments received by foreign
    financial institutions registered with the Secretaria de Hacienda y Credito
    Publico as a Foreign Financial Institution for the purposes of Article 195,
    Section I of the Mexican Income Tax law, then the Administrative Agent or
    such Lender shall, upon reasonable request by the Borrower or the
    Guarantors, use reasonable efforts (consistent with legal and regulatory
    restrictions) to change the jurisdiction of its Lending Office, issuing
    office, or office for receipt of payments by the Borrower and Guarantors
    hereunder, as the case may be, so as to eliminate or reduce the obligation
    of the Borrower or the Guarantors, as the case may be, to pay any such
    additional amounts which may thereafter accrue or to indemnify the
    Administrative Agent or such Lender in the future, if such change in the
    reasonable judgment of the Administrative Agent or such Lender is not
    otherwise disadvantageous to such Lender.

         (f) Each Lender and the Administrative Agent shall, from time to time
    at the request of the Borrower or the Administrative Agent (as the case may
    be), promptly furnish to the Borrower and the Administrative Agent (as the
    case may be), such forms, documents or other information (which shall be
    accurate and complete) as may be reasonably required to establish any
    available exemption from, or reduction in the amount of, applicable Taxes;
    provided, however, that none of any Lender or the Administrative Agent shall
    be obliged to disclose information regarding its tax affairs or computations
    to the Borrower in connection with this paragraph (f), it being understood
    that the identity of any Person shall not be considered for these purposes
    as information regarding its tax affairs or computations. Each of the
    Borrower and the Administrative Agent shall be entitled to rely on the
    accuracy of any such forms, documents or other information furnished to it
    by any Person and shall have no obligation to make any additional payment or
    indemnify any Person for any Taxes, interest or penalties that would not
    have became payable by such Person had such documentation been accurate.

         (g) In the case of an assignment, transfer, grant of a participation,
    designation of a new Lending Office [or Administrative Agent's Payment
    Office or appointment of a successor Administrative Agent], the Borrower and
    Guarantors shall not be required to pay or increase any amounts, pursuant to
    this Section 3.04 following such event, in excess of the amounts the
    Borrower and Guarantors were required to pay or increase immediately prior
    to such an event, except to the extent such event occurs pursuant to Section
    3.11 or to the extent of increases in such amounts resulting from a change
    in applicable law occurring after such event.

         (h) If the Administrative Agent or any Lender receives a refund or
    credit in respect of Taxes or Other Taxes as to which it has been
    indemnified by the Borrower or a Guarantor, as the case may be, pursuant to
    Section 3.04(b) and such refund or credit is directly and clearly
    attributable to this Agreement, it shall notify the Borrower or such
    Guarantor, as the case may be, of the amount of such refund or credit and
    shall return to the Borrower or such Guarantor, as the case may be, such
    refund or the benefit of such credit; provided, however, that (A) the
    Administrative Agent or such Lender, as the case may be, shall not be
    obligated to make any effort to obtain such refund or credit or to provide
    the Borrower or the Guarantors with any information on or justification for
    the arrangement of its tax affairs or otherwise disclose to the Borrower,
    the Guarantors or any other Person any information that it considers to be
    proprietary or confidential, and (B) the Borrower or such Guarantor, as the
    case may be, upon the request of the Administrative Agent or such Lender, as
    the case may be, shall return the amount of such refund or the benefit of
    such credit to the Administrative Agent or such Lender, as the case may be,
    if the Administrative Agent or such Lender, as the case may be, is required
    to repay the amount of such refund or the benefit of such credit to the
    relevant authorities within six years of the date the Borrower or such
    Guarantor, as the case may be, is paid such amount by the Administrative
    Agent or such Lender, as the case may be.

         (i) The agreements in this Section 3.04 shall survive the termination
    of this Credit Agreement and the payment of the Borrower's Obligations.

         3.05  General Provisions as to Payments.

         (a) All payments to be made by the Borrower or the Guarantors, as the
    case may be, shall be made without set-off, counterclaim or other defense.
    Except as otherwise expressly provided herein, all payments by the Borrower
    shall be made to the Administrative Agent for the account of the Lenders at
    the Administrative Agent's Payment Office, and shall be made in Dollars and
    in immediately available funds, no later than 3:30 p.m. (New York City time)
    on the dates specified herein. The Administrative Agent will promptly
    distribute to each Lender its Commitment Percentage (or other applicable
    share as expressly provided herein) of each payment in like funds as
    received. Any payment received by the Administrative Agent later than 3:30
    p.m. (New York City time) shall be deemed to have been received on the
    following Business Day and any applicable interest or fee shall continue to
    accrue until such following Business Day.

         (b) Except and to the extent otherwise specifically provided herein,
    whenever any payment to be made hereunder is due on a day which is not a
    Business Day, the date for payment thereof shall be extended to the
    immediately following Business Day and, if interest is stated to be payable
    in respect thereof, interest shall continue to accrue to such immediately
    following Business Day.

         (c) Unless the Administrative Agent shall have received notice from the
    Borrower prior to the date on which any payment is due to the Lenders
    hereunder that the Borrower will not make such payment in full, the
    Administrative Agent may assume that the Borrower has made such payment in
    full to the Administrative Agent on such date and the Administrative Agent
    may (but shall not be so required), in reliance upon such assumption, cause
    to be distributed to each Lender, as the case may be, on such due date an
    amount equal to the amount then due to such Lender. If and to the extent
    that the Borrower shall not have made such payment, each Lender shall repay
    to the Administrative Agent forthwith on demand such amount distributed to
    such Lender together with accrued interest thereon, for each day from the
    date such amount is distributed to such Lender until the date such Lender
    repays such amount to the Administrative Agent, at the Federal Funds Rate;
    provided, however, that if any amount remains unpaid by any Lender for more
    than five Business Days after the Administrative Agent has made a demand for
    such amount, such Lender shall, commencing on the day next following such
    fifth Business Day, pay interest to the Administrative Agent at a rate per
    annum equal to the Federal Funds Rate plus 1%, and, provided further, that
    if any such amount remains unpaid by any Lender for more than ten Business
    Days, such Lender shall, commencing on the day next following such tenth
    Business Day, pay interest to the Administrative Agent at a rate per annum
    equal to the Federal Funds Rate plus 2.00%.

         (d) Currency of account.

             (i) Subject to paragraphs (ii) through (v) below, Dollars are the
    currency of account and payment for any sum due from parties under any
    Transaction Document.

             (ii) A repayment of an Obligation or a part of an Obligation shall
    be made in the currency in which that Obligation is denominated on its due
    date.

             (iii) Each payment of interest shall be made in the currency in
    which the sum in respect of which the interest is payable was denominated
    when that interest accrued.

             (iv) Each payment in respect of costs, expenses or Taxes shall be
    made in the currency in which the costs, expenses or Taxes are incurred.

             (v) Any amount expressed to be payable in a currency other than
    Dollars shall be paid in that other currency.

         (e) Change of currency.

             Unless otherwise prohibited by law or regulation, if more than
    one currency or currency unit are at the same time recognized by the
    central bank of any country as the lawful currency of that country, then:

             (A)      any reference in the Transaction Documents
                      to, and any Obligations arising under the
                      Transaction Documents in, the currency of
                      that country shall be translated into, or
                      paid in, the currency or currency unit of
                      that country as agreed by the Administrative
                      Agent and the Borrower; and

             (B)      any translation from one currency or
                      currency unit to another shall be at the
                      official rate of exchange recognized by the
                      central bank for the conversion of that
                      currency or currency unit into the other,
                      rounded up or down by the Administrative
                      Agent (acting reasonably).

         If a change in any currency of a country occurs, this Agreement will,
to the extent the Administrative Agent and the Borrower deem necessary, be
amended to comply with any generally accepted conventions and market practice in
the relevant interbank market and otherwise to reflect the change in currency.

         3.06  Funding Losses. If the Borrower makes any payment of principal
with respect to any LIBOR Loan or Euribor Loan on any day other than the last
day of the Interest Period applicable thereto, or if the Borrower fails to
borrow any LIBOR Loans or Euribor Loans after notice has been given to any
Lender in accordance with Section 2.01 or to convert or continue a Loan as a
LIBOR Loan or Euribor Loan after a Notice of Extension/Conversion has been
delivered by the Borrower pursuant to Section 2.01(e), or if the Borrower fails
to prepay any LIBOR Loans or Euribor Loans after notice has been given pursuant
to Section 2.01, the Borrower shall reimburse each Lender within 15 days after
demand for any resulting loss or expense incurred by it, including any loss
incurred in obtaining, liquidating or reemploying deposits bearing interest by
reference to LIBOR or Euribor from third parties ("Funding Losses"), provided
such Lender shall have delivered to the Borrower a certificate setting forth in
reasonable detail the computations for the amount of such loss or expense, which
certificate shall be conclusive in the absence of manifest error.

         3.07  Basis for Determining Interest Rate Inadequate or Unfair. If on
or prior to the first day of any Interest Period for any LIBOR Loan or Euribor
Loan:

         (a) the Administrative Agent determines that by reason of circumstances
    affecting the London interbank market or the European interbank market, as
    the case may be, reasonably adequate means do not exist for ascertaining
    LIBOR or Euribor applicable to such Interest Period or that deposits in
    Dollars (in the applicable amounts) are not being offered in the London
    interbank market or the European interbank market, as the case may be, for
    such Interest Period, or

         (b) the Required Lenders advise the Administrative Agent that LIBOR or
    Euribor as determined by the Administrative Agent will not adequately and
    fairly reflect the cost to any Lender of making or maintaining its Loan for
    such Interest Period,

         (c) then the Administrative Agent shall forthwith give notice thereof
    to the Borrower and the Lenders. In the event of any such determination or
    advice, until the Administrative Agent shall have notified the Borrower and
    the Lenders that the circumstances giving rise to such notice no longer
    exist, any request by the Borrower for a Loan of the affected amount or
    Interest Period, or a conversion to or continuation of a Loan of the
    affected amount or Interest Period shall be deemed rescinded and such
    request shall instead be considered a request for a Base Rate Loan. Each
    determination by the Administrative Agent hereunder shall be conclusive
    absent manifest error.

         3.08  Capital Adequacy.

         If any Lender has determined, after the date hereof, that the adoption
or the becoming effective of, or any change in, or any change by any
Governmental Authority, central bank, or comparable agency charged with the
interpretation or administration thereof in the interpretation or administration
of, any applicable law, rule, or regulation regarding capital adequacy, or
compliance by such Lender with any request or directive regarding capital
adequacy (whether or not having the force of law) of any such authority, central
bank, or comparable agency, has or would have the effect of increasing such
Lender's cost of maintaining its Commitment or making or maintaining any Loans
or reducing the rate of return on such Lender's capital or assets as a
consequence of its commitments or obligations hereunder to a level below that
which such Lender could have achieved but for such adoption, effectiveness,
change, or compliance (taking into consideration such Lender's policies with
respect to capital adequacy), then, upon notice from such Lender to the
Borrower, the Borrower shall be obligated to pay to such Lender such additional
amount or amounts as will compensate such Lender for such increased cost or
reduction in amount received. Each determination by any such Lender of amounts
owing under this Section shall, absent manifest error, be conclusive and binding
on the parties hereto. The relevant Lender will, upon request, provide a
certificate in reasonable detail as to the amount of such increased cost or
reduction in amount received and method of calculation.

         Upon any Lender's making a claim for compensation under this Section
3.08, (i) such Lender shall use commercially reasonable efforts (consistent with
legal and regulatory restrictions) to change the jurisdiction of its Lending
Office or assign its rights and obligations hereunder to another of its offices,
branches or affiliates so as to eliminate or reduce any such additional payment
by the Borrower which may thereafter accrue, if such change is not otherwise
disadvantageous to such Lender, and (ii) the Borrower may replace such Lender in
accordance with Section 3.11.

         3.09  Illegality.

         (a) Notwithstanding any other provision herein, if the adoption of or
    any change in any Requirement of Law or in the interpretation or application
    thereof occurring after the Effective Date shall make it unlawful for any
    Lender to make or maintain any Commitment or any Loan as contemplated by
    this Agreement, then such Lender, together with Lenders giving notice under
    Section 3.07, shall be an "Affected Lender" and by written notice to the
    Borrower and to the Administrative Agent:

              (i) such Lender may declare that such Loans will not thereafter
         (for the duration of such unlawfulness or impossibility) be made by
         such Lender hereunder, whereupon, in the case of any request for a
         LIBOR Loan or a Euribor Loan, as to such Lender, such request shall
         only be deemed a request for a Base Rate Loan (unless it should also be
         illegal for the Affected Lender to provide a Base Rate Loan, in which
         case such Loan shall bear interest at a commensurate rate to be agreed
         upon by the Administrative Agent and the Affected Lender, and so long
         as no Event of Default shall have occurred and be continuing, the
         Borrower), unless such declaration shall be subsequently withdrawn;

              (ii) such Lender may require that all outstanding LIBOR Loans and
         Euribor Loans, made by it be converted to Base Rate Loans, in which
         event all such LIBOR Loans and Euribor Loans shall be automatically
         converted to Base Rate Loans as of the effective date of such notice as
         provided in paragraph (b) below; and

              (iii) if it is also illegal for the Affected Lender to make Base
         Rate Loans, such Lender may declare all amounts owed to them by the
         Borrower to the extent of such illegality to be due and payable;
         provided, however, the Borrower has the right, with the consent of the
         Administrative Agent to find an additional Lender to purchase the
         Affected Lenders' rights and obligations.

In the event any Lender shall exercise its rights under (i) or (ii) above with
respect to any Loans, all payments and prepayments of principal that would
otherwise have been applied to repay the LIBOR Loans or the Euribor Loans that
would have been made by such Lender or the converted LIBOR Loans or the
converted Euribor Loans of such Lender shall instead be applied to repay the
Base Rate Loans made by such Lender in lieu of, or resulting from the
conversion, of such LIBOR Loans or Euribor Loans.

         (b) For purposes of this Section 3.09, a notice to the Borrower by any
    Lender shall be effective as to each such Loan, if lawful, on the last day
    of the Interest Period currently applicable to such Loan; in all other cases
    such notice shall be effective on the date of receipt by the Borrower.

         3.10  Requirements of Law.

         If, after the date hereof, the adoption of or any change in any
Requirement of Law or in the interpretation or application thereof applicable to
any Lender, or compliance by any Lender with any request or directive (whether
or not having the force of law) from any central bank or other Governmental
Authority, in each case made subsequent to the Effective Date (or, if later, the
date on which such Lender becomes a Lender):

          (a) shall impose, modify, or hold applicable any reserve, special
    deposit, compulsory loan, or similar requirement against assets held by,
    deposits or other liabilities in or for the account of, advances, loans, or
    other extensions of credit by, or any other acquisition of funds by, any
    office of such Lender that is not otherwise included in the determination of
    LIBOR or Euribor hereunder; or

          (b) shall impose on such Lender any other condition (excluding any tax
    of any kind whatsoever);

and the result of any of the foregoing is to increase the cost to such Lender,
by an amount that such Lender reasonably deems to be material, of making,
converting into, continuing, or maintaining LIBOR Loans or Euribor Loans or to
reduce any amount receivable hereunder in respect thereof, then, in any such
case, upon notice delivered to the Borrower from such Lender, through the
Administrative Agent, in accordance herewith, the Borrower shall be obligated to
promptly pay such Lender, upon its demand, any additional amounts necessary to
compensate such Lender for such increased cost or reduced amount receivable;
provided that, in any such case, the Borrower may elect to convert the LIBOR
Loans and Euribor Loans made by such Lender hereunder to Base Rate Loans by
giving the Administrative Agent at least one (1) Business Day's notice of such
election. If any Lender becomes entitled to claim any additional amounts
pursuant to this Section, it shall provide notice thereof to the Borrower,
promptly upon occurrence of such event, but in any case within three (3) days
from the date of such event, through the Administrative Agent, certifying (x)
that one of the events described in this paragraph (a) has occurred and
describing in reasonable detail the nature of such event, (y) as to the
increased cost or reduced amount resulting from such event and (z) as to the
additional amount demanded by such Lender and a reasonably detailed explanation
of the calculation thereof. Such a certificate as to any additional amounts
payable pursuant to this subsection submitted by such Lender, through the
Administrative Agent, to the Borrower shall be conclusive and binding on the
parties hereto in the absence of manifest error. This covenant shall survive the
termination of this Agreement and the payment of the Loans and all other amounts
payable hereunder. If any Lender becomes aware of a proposed change in any
Requirement of Law that would entitle it to claim any additional amounts
pursuant to this Section it shall promptly, upon the Lender becoming aware of
such event, provide notice to the Borrower through the Administrative Agent.

         3.11  Substitute Lenders. If any Lender has demanded compensation (or
if the Borrower is required to increase amounts payable hereunder) pursuant to
Sections 3.04, 3.08, or 3.10 or has exercised its rights pursuant to Section
3.09(a)(iii), and such Lender does not waive its right to future additional
compensation pursuant to Sections 3.04, 3.08 or 3.10, the Borrower shall have
the right (i) to replace such Lender with a Substitute Lender or Substitute
Lenders that shall succeed to the rights of such Lender under this Agreement
upon execution of an Assignment and Assumption Agreement and payment by the
Borrower of the related processing fee of U.S.$3,500 to the Administrative
Agent; or (ii) to remove such Lender, reduce the Commitments by the amount of
the Commitment of such Lender, and adjust the Commitment Percentage of each
Lender such that the percentage of each other Lender shall be increased to
equal the percentage equivalent of a fraction. The numerator of which is the
Commitment of such other Lender and the denominator of which is the Commitments
of the Lenders minus the Commitments of the Lender who demanded payment
pursuant to Sections 3.04, 3.08 or 3.10 or exercised its rights pursuant to
Section 3.09(a)(iii); provided, however, that such Lender shall not be replaced
or removed hereunder until such Lender has been repaid in full all amounts owed
to it pursuant to this Agreement and the other Transaction Documents (including
Sections 3.06 and 3.08) unless any such amount is being contested by the
Borrower in good faith.

         3.12  Sharing of Payments, Etc.

         (a) If, other than as expressly provided elsewhere herein, any Lender
    shall obtain on account of the Obligations owing to it any payment (whether
    voluntary, involuntary, through the exercise of any right of set-off, or
    otherwise) in excess of its Commitment Percentage of payments on account of
    the Obligations obtained by all the Lenders (an "excess payment"), such
    Lender shall forthwith (i) notify the Administrative Agent of such fact,
    and (ii) purchase from the other Lenders such participations in such
    Obligations owing to them as shall be necessary to cause such purchasing
    Lender to share the excess payment ratably with each of them; provided,
    however, that if all or any portion of such excess payment is thereafter
    recovered from the purchasing Lender, such purchase shall to that extent be
    rescinded and each other Lender shall repay to the purchasing Lender the
    purchase price paid therefor, together with an amount equal to such paying
    Lender's Commitment Percentage (according to the proportion of (A) the
    amount of such paying Lender's required repayment to (B) the total amount
    so recovered from the purchasing Lender) of any interest or other amount
    paid or payable by the purchasing Lender in respect of the total amount so
    recovered. The Administrative Agent will keep records (which shall be
    conclusive and binding in the absence of demonstrable error) of
    participations purchased pursuant to this Section 3.12 and will in each
    case notify the Lenders following any such purchases.

         (b) If any Lender shall commence any action or proceeding in any court
    to enforce its rights hereunder after consultation with the other Lenders
    and, as a result thereof or in connection therewith, it shall receive any
    excess payment, then such Lender shall not be required to share any portion
    of such excess payment with any Lender which has the legal right to, but
    does not, join in any such action or proceeding or commence and diligently
    prosecute a separate action or proceeding to enforce its rights in another
    court.

         (c) The Borrower agrees that any Lender so purchasing a participation
    from another Lender pursuant to this Section 3.12 may exercise all its
    rights of set-off with respect to such participation as fully as if such
    Lender were the direct creditor of the Borrower in the amount of such
    participation.

                                   ARTICLE IV
                              CONDITIONS PRECEDENT
                              --------------------

         4.01  Conditions to Effectiveness. The obligations of the Lenders under
this Agreement are subject to the satisfaction or waiver of the following
conditions precedent (the date on which all such conditions precedent are
satisfied or waived being the "Effective Date"):

         (a) Agreement. The Administrative Agent shall have received
    counterparts of this Agreement duly executed by each party hereto and there
    shall have been delivered to the Administrative Agent for the account of
    each Lender a Note executed by the Borrower.

         (b) Opinions of Borrower's and each Guarantor's Counsel. The
    Administrative Agent shall have received (i) the opinion of Skadden, Arps,
    Slate, Meagher & Flom LLP, New York counsel to the Borrower and the
    Guarantors, in substantially the form of Exhibit E, and (ii) the opinion of
    Lic. Ramiro G. Villareal Morales, Mexican counsel to the Borrower, in
    substantially the form of Exhibit F.

         (c) Opinion of Counsel to the Administrative Agent. The Administrative
    Agent shall have received (i) a favorable opinion of Ritch, Heather y
    Mueller, S.C., special Mexican counsel to the Administrative Agent and the
    Lenders, and (ii) the opinion of Sullivan & Cromwell LLP, New York counsel
    to the Lenders.

         (d) Governmental Approvals. The Administrative Agent shall have
    received certified copies of any and all necessary approvals,
    authorizations, or consents of, or notices to, or registrations with any
    Governmental Authority required for the Borrower and each Guarantor to
    enter into, or perform its obligations under, the Transaction Documents.

         (e) Organizational Documents of the Borrower and the Guarantors. The
    Administrative Agent shall have received certified copies of (i) the acta
    constitutiva and estatutos sociales in effect on the Effective Date of the
    Borrower and each Guarantor, (ii) the powers-of-attorney of each Person
    executing any Transaction Document on behalf of the Borrower and each
    Guarantor, together with specimen signatures of such Person and (iii) all
    documents evidencing other necessary corporate action and governmental
    approvals, if any, with respect to the authorization for the execution,
    delivery and performance of each such Transaction Document and the
    transactions contemplated hereby and thereby. All certificates shall state
    that the resolutions or other information referred to in such certificates
    have not been amended, modified, revoked or rescinded as of the date of
    such certificates (which shall not be earlier than five Business Days
    before the Effective Date).

         (f) Agent for Service of Process. The Administrative Agent shall have
    received a power of attorney, notarized under Mexican law, granted by the
    Borrower and each Guarantor to the Process Agent in respect of the
    Transaction Documents together with evidence that the Process Agent has
    accepted its appointment as Process Agent pursuant to Section 13.12.

         (g) Fees and Expenses. The Borrower shall have paid all fees and
    expenses owing to the Lenders, the Joint Bookrunners and the Administrative
    Agent to the extent of and payable on or before the Effective Date of the
    Agreement, and all other fees and expenses owing hereunder and under the
    Fee Letter to the extent due and payable on or before the Effective Date of
    the Agreement.

         (h) No Default. No Default or Event of Default shall have occurred and
    be continuing either prior to or after giving effect to the transactions
    contemplated on the Effective Date, and the Borrower and each Guarantor
    shall have provided a certificate from a Responsible Officer of the
    Borrower to such effect to the Administrative Agent.

         (i) Representations and Warranties. The representations and warranties
    of the Borrower and of each Guarantor contained in this Agreement and each
    other Transaction Document shall be true on and as of the Effective Date,
    and the Borrower and each Guarantor shall have provided a certificate to
    such effect to the Administrative Agent.

         (j) No Material Adverse Effect. No Material Adverse Effect shall have
    occurred since December 31, 2004 and there shall have occurred no
    circumstance and/or event of a financial, political or economic nature in
    Mexico that has a reasonable likelihood of having a material adverse effect
    on the ability of the Borrower or the Guarantors to perform their
    obligations under this Agreement and the other Transaction Documents; for
    the avoidance of doubt, the fact that the Borrower has acquired the shares
    of RMC Group p.l.c. shall not itself be deemed to have been a Material
    Adverse Effect.

         (k) Other Documents. The Administrative Agent shall have received such
    other certificates, powers of attorney and other documents and undertakings
    relating to the authority for, and the execution, delivery and validity of,
    the Transaction Documents, as may be reasonably requested by the
    Administrative Agent or any Lender through the Administrative Agent.

         (l) Fees, Costs and Expenses under the Term Credit Agreement. The
    Borrower shall have paid all accrued and unpaid fees payable under the Term
    Credit Agreement to the extent due and payable on or before the Effective
    Date of this Agreement.

         (m) Term Credit Agreement. The Term Credit Agreement shall have been
    cancelled or terminated in accordance with its respective terms; any
    promissory notes issued thereunder shall have been cancelled or returned to
    the Borrower; and all outstanding indebtedness for money borrowed under the
    Term Credit Agreement shall have been, or will be simultaneously with the
    Borrowings hereunder, repaid in full. The parties hereto agree that a
    Notice of Borrowing may be given under this Agreement simultaneously to
    repay all outstanding obligations under the Term Credit Agreement.

         4.02  Conditions Precedent to Borrowings and Continuation or Conversion
of the Loans. The obligation of any Lender to make a Loan on the occasion
of any Borrowing or to continue or convert any Loan is subject to the
satisfaction of the following conditions:

         (a) Notices. In the case of Borrowings, continuance or conversion of
    Loans, the Administrative Agent shall have received a Notice of Borrowing
    or a Notice of Extension/Conversion as required by Section 2.01(c) or
    2.01(e), respectively;

         (b) Availability. Immediately after such Borrowing or the continuation
    or conversion of any Loan, the Total Outstandings for such Lender shall not
    exceed the Commitment of such Lender;

         (c) No Default. Immediately before and after giving effect to such
    Borrowing or the continuation or conversion of any Borrowing, no Default or
    Event of Default shall have occurred and be continuing and such Borrowing
    or continuation or conversion of any Loan will not cause or result in a
    Default or Event of Default; and

         (d) Representations and Warranties. The representations and warranties
    of the Borrower contained in this Agreement and in each other Transaction
    Document and of each Guarantor contained in this Agreement shall be true
    and correct in all material respects on and as of the date of any Borrowing
    or continuation or conversion of any Loan.

                                   ARTICLE V
                 REPRESENTATIONS AND WARRANTIES OF THE BORROWER
                 ----------------------------------------------

         The Borrower represents and warrants that:

         5.01  Corporate Existence and Power. .

         (a) The Borrower is a corporation (sociedad anonima de capital
    variable) duly incorporated, validly existing and in good standing under
    the laws of Mexico and has all requisite corporate power and authority
    (including all governmental licenses, permits and other approvals except
    for such licenses, permits and approvals the absence of which will not have
    a Material Adverse Effect) to own its assets and carry on its business as
    now conducted and as proposed to be conducted.

         (b) All of the outstanding stock of the Borrower has been validly
    issued and is fully paid and non-assessable.

         5.02  Power and Authority; Enforceable Obligations.

         (a) The execution, delivery and performance by the Borrower of each
    Transaction Document to which it is or will be a party, and the
    consummation of the transactions contemplated hereby and thereby, are
    within the Borrower's corporate powers and have been duly authorized by all
    necessary corporate action pursuant to the estatutos sociales of the
    Borrower.

         (b) This Agreement and the other Transaction Documents to which the
    Borrower is a party have been duly executed and delivered by the Borrower
    and constitute the legal, valid and binding obligations of the Borrower
    enforceable in accordance with their respective terms, except as
    enforceability may be limited by applicable concurso mercantil, bankruptcy,
    insolvency, reorganization, moratorium or similar laws affecting creditors'
    rights generally or general equity principles.

         5.03  Compliance with Law and Other Instruments. The execution,
delivery of and performance under this Agreement and each of the other
Transaction Documents to which the Borrower is a party and the consummation of
the transactions herein or therein contemplated, and compliance with the terms
and provisions hereof and thereof, do not and will not (a) conflict with, or
result in a breach or violation of, or constitute a default under, or result in
the creation or imposition of any Lien upon the assets of the Borrower pursuant
to, any Contractual Obligation of the Borrower or (b) result in any violation
of the estatutos sociales of the Borrower or any provision of any Requirement
of Law applicable to the Borrower.

         5.04  Consents/Approvals. No order, permission, consent, approval,
license, authorization, registration or validation of, or notice to or filing
with, or exemption by, any Governmental Authority or third party is required to
authorize, or is required in connection with, the execution, delivery and
performance by the Borrower of this Agreement and the other Transaction
Documents to which the Borrower is a party or the taking of any action
contemplated hereby or by any other Transaction Document.

         5.05  Financial Information. The consolidated balance sheet of the
Borrower and its Subsidiaries as at December 31, 2004, and the related
consolidated statements of income and cash flows of the Borrower and its
Subsidiaries for the fiscal year then ended, accompanied by an opinion of KPMG
Cardenas Dosal, S.C., independent public accountants, and the consolidated
balance sheet of the Borrower and its Subsidiaries as at March 31, 2005, and
the related consolidated statements of income and cash flows of the Borrower
and its Subsidiaries for the three months then ended, duly certified by the
chief financial officer of the Borrower, copies of which have been furnished to
each Lender, fairly present, subject, in the case of said balance sheet as at
March 31, 2005, and said statements of income and cash flows for the three
months then ended, to year-end audit adjustments, the consolidated financial
condition of the Borrower and its Subsidiaries as at such dates and the
consolidated results of the operations of the Borrower and its Subsidiaries for
the periods ended on such dates, all in accordance with Mexican GAAP,
consistently applied.

         5.06  Litigation. Except as set forth in Schedule 5.06, there is no
pending or threatened action, suit, investigation, litigation or proceeding,
including any Environmental Action, affecting the Borrower or any of its
Subsidiaries before any court, Governmental Authority or arbitrator that (a)
would be reasonably likely to have a Material Adverse Effect or (b) purports to
affect the legality, validity or enforceability of any Transaction Document or
the consummation of the transactions contemplated thereby, and there has been
no adverse change in the status, or financial effect on the Borrower or any of
its Subsidiaries, of the litigation described in Schedule 5.06.

         5.07  No Immunity. The Borrower is subject to civil and commercial law
with respect to its obligations under this Agreement and each other Transaction
Document to which it is a party and the execution, delivery and performance of
this Agreement or any such other Transaction Document by the Borrower
constitute private and commercial acts rather than public or governmental acts.
Under the laws of Mexico neither the Borrower nor any of its property has any
immunity from jurisdiction of any court or any legal process (whether through
service or notice, attachment prior to judgment or attachment in aid of
execution).

         5.08  Governmental Regulations. The Borrower is not, and is not
controlled by, (a) an "investment company" within the meaning of the United
States Investment Company Act of 1940, as amended or (b) a "holding company",
or of a "subsidiary company" of a "holding company", or an "affiliate" of a
"holding company" or of a "subsidiary" of a "holding company", within the
meaning of the Public Utility Holding Company Act of 1935, as amended.

         5.09  Direct Obligations; Pari Passu; Liens.

         (a) (i) This Agreement constitutes a direct, unconditional
    unsubordinated and unsecured obligation of the Borrower, and (ii) the
    Loans, when made, will constitute direct, unconditional unsubordinated and
    unsecured obligations of the Borrower.

         (b) The obligations of the Borrower under this Agreement and the Loans
    rank and will rank in priority of payment at least pari passu with all
    other senior unsecured Debt of the Borrower.

         (c) There are no Liens on the property of the Borrower or any of its
    Subsidiaries other than Permitted Liens.

         5.10  Subsidiaries. As of March 31, 2005, all Material Subsidiaries of
the Borrower are listed on Schedule 5.10, without giving effect to the
acquisition of RMC Group p.l.c.

         5.11  Ownership of Property. (a) Except as, in the aggregate, could not
reasonably be expected to have a Material Adverse Effect, each of the Borrower
and its Subsidiaries has title in fee simple to, or a valid leasehold interest
in, all its real property, and good title to, or a valid leasehold interest in,
all its other property, and none of such property is subject to any Lien except
Permitted Liens and (b) each Credit Party maintains insurance as required by
Section 7.05.

         5.12  No Recordation Necessary.

         (a) This Agreement and the Notes are in proper legal form under the
    law of Mexico for the enforcement thereof against the Borrower under the
    law of Mexico. To ensure the legality, validity, enforceability or
    admissibility in evidence of this Agreement and each other Transaction
    Document in Mexico, it is not necessary that this Agreement or any other
    Transaction Document be filed or recorded with any Governmental Authority
    in Mexico or that any stamp or similar tax be paid on or in respect of this
    Agreement or any other document to be furnished under this Agreement,
    unless such stamp or similar taxes have been paid by the Borrower;
    provided, however, that in the event any legal proceedings are brought in
    the courts of Mexico, an official Spanish translation of the documents
    required in such proceedings, including this Agreement, would have to be
    approved by the court after the defendant is given an opportunity to be
    heard with respect to the accuracy of the translation, and proceedings
    would thereafter be based upon the translated documents.

         (b) It is not necessary (i) in order for the Administrative Agent or
    any Lender to enforce any rights or remedies under the Transaction
    Documents or (ii) solely by reason of the execution, delivery and
    performance of this Agreement by the Administrative Agent or any Lender,
    that the Administrative Agent or such Lender be licensed or qualified with
    any Mexican Governmental Authority or be entitled to carry on business in
    Mexico.

         5.13  Taxes.

         (a) Each Obligor has filed all material tax returns which are required
    to be filed by it and has paid all taxes due pursuant to such returns or
    pursuant to any material assessment received by the Borrower, except where
    the same may be contested in good faith by appropriate proceedings and as
    to which such Obligor maintains reserves to the extent it is required to do
    so by law or pursuant to Mexican GAAP. The charges, accruals and reserves
    on the books of each Obligor in respect of taxes or other governmental
    charges are, in the opinion of the Borrower, adequate.

         (b) Except for tax imposed by way of withholding on interest, fees and
    commissions remitted from Mexico, there is no tax (other than taxes on, or
    measured by, income or profits), levy, impost, deduction, charge or
    withholding imposed, levied, charged, assessed or made by or in Mexico or
    any political subdivision or taxing authority thereof or therein either (i)
    on or by virtue of the execution or delivery of this Agreement or any of
    the other Transaction Documents or (ii) on any payment to be made by the
    Borrower pursuant to this Agreement or any of the other Transaction
    Documents. The Borrower and each Guarantor is permitted to pay any
    additional amounts payable pursuant to Section 3.04.

         5.14   Compliance with Laws. The Borrower and its Subsidiaries are in
compliance in all material respects with all applicable Requirements of Law
(including with respect to the licenses, certificates, permits, franchises, and
other governmental authorizations necessary to the ownership of their
respective properties or to the conduct of their respective businesses,
antitrust laws or Environmental Laws and the rules and regulations and laws
with respect to social security, workers' housing funds, and pension funds
obligations), except where the failure to so comply would not have a Material
Adverse Effect.

         5.15   Absence of Default. No Default or Event of Default has occurred
and is continuing.

         5.16  Full Disclosure. All information heretofore furnished by the
Borrower to the Administrative Agent, the Joint Bookrunners or any Lender for
purposes of or in connection with this Agreement or any transaction
contemplated hereby (other than projections and other "forward-looking"
information that have been prepared on a reasonable basis and in good faith by
the Borrower) is, and all such information hereafter furnished by the Borrower
to the Administrative Agent, the Joint Bookrunners or any Lender will be, true
and accurate in all material respects on the date as of which such information
is stated or certified and does not omit to state any material fact necessary
in order to make the statements contained herein or therein, taken as a whole,
not misleading. The Borrower has disclosed to the Lenders in writing any and
all facts which may have a Material Adverse Effect.

         5.17  Choice of Law; Submission to Jurisdiction and Waiver of Sovereign
Immunity. In any action or proceeding involving the Borrower arising out of or
relating to this Agreement in any Mexican court or tribunal, any Lender, the
Joint Bookrunners and the Administrative Agent would be entitled to the
recognition and effectiveness of the choice of law, submission to jurisdiction
and waiver of sovereign immunity provisions of Sections 13.10, 13.11 and 13.13.

         5.18  Aggregate Exposure. The Aggregate Exposure does not exceed the
Aggregate Committed Amount.

         5.19 Pension and Welfare Plans. During the consecutive twelve-month
period prior to the date of the execution and delivery of this Agreement and
prior to the date of any Borrowing hereunder, no steps have been taken to
terminate any Pension Plan, and no contribution failure has occurred with
respect to any Pension Plan sufficient to give rise to a Lien under Section
302(f) of ERISA. No condition exists or event or transaction has occurred with
respect to any Pension Plan which would reasonably be expected to result in the
incurrence by any Credit Party, any of its Subsidiaries, or any its ERISA
Affiliates of any material liability (other than liabilities incurred in the
ordinary course of maintaining the Pension Plan), fine or penalty. No Credit
Party, nor any of its Subsidiaries, has any contingent liability with respect
to any post-retirement benefit under a Welfare Plan which would reasonably be
expected to have a Material Adverse Effect, other than liability for
continuation coverage described in Part 6 of Title I of ERISA.

         5.20  Environmental Matters.

         Except as would not have or be reasonably expected to have a Material
Adverse Effect:

         (a) Each of the properties owned or leased by a Credit Party or any of
    its Subsidiaries (the "Real Properties") and all operations at the Real
    Properties are in compliance with all applicable Environmental Laws, and
    there is no violation of any Environmental Law with respect to the Real
    Properties or the businesses operated by the Credit Parties or any of their
    Subsidiaries (the "Businesses"), and there are no conditions relating to
    the Businesses or Real Properties that would reasonably be expected to give
    rise to liability under any applicable Environmental Laws.

         (b) No Credit Party has received any written notice of, or inquiry
    from any Governmental Authority regarding, any violation, alleged
    violation, non-compliance or liability regarding Hazardous Materials or
    compliance with Environmental Laws with regard to any of the Real
    Properties or the Businesses, nor, to the knowledge of a Credit Party or
    any of its Subsidiaries, is any such notice being threatened.

         (c) Hazardous Materials have not been transported or disposed of from
    the Real Properties, or generated, treated, stored or disposed of at, on or
    under any of the Real Properties or any other location, in each case by, or
    on behalf or with the permission of, a Credit Party or any of its
    Subsidiaries in a manner that would give rise to liability under any
    applicable Environmental Laws.

         (d) No judicial proceeding or governmental or administrative action is
    pending or, to the knowledge of a Credit Party or any of its Subsidiaries,
    threatened, under any Environmental Law to which a Credit Party or any of
    its Subsidiaries is or will be named as a party, nor are there any consent
    decrees or other decrees, consent orders, administrative orders or other
    orders, or other administrative or judicial requirements outstanding under
    any Environmental Law with respect to a Credit Party or any of its
    Subsidiaries, the Real Properties or the Businesses.

         (e) There has been no release (including disposal) or to the
    Borrower's knowledge, threat of release of Hazardous Materials at or from
    the Real Properties, or arising from or related to the operations of a
    Credit Party or any of its Subsidiaries in connection with the Real
    Properties or otherwise in connection with the Businesses where such
    release constituted a violation of, or would give rise to liability under,
    any applicable Environmental Laws.

         (f) None of the Real Properties contains any Hazardous Materials at,
    on or under the Real Properties in amounts or concentrations that, if
    released, constitute a violation of, or could give rise to liability under,
    Environmental Laws.

         (g) No Credit Party, nor any of its Subsidiaries, has assumed any
    liability of any Person (other than another Credit Party or one of its
    Subsidiaries) under any Environmental Law.

         (h) This Section 5.20 constitutes the only representations and
    warranties of the Credit Parties with respect to any Environmental Law or
    Hazardous Substance.

         5.21  Margin Regulations. No part of the proceeds of the Loans
hereunder will be used, directly or indirectly, for the purpose of purchasing
or carrying any "margin stock" within the meaning of Regulation U, or for the
purpose of purchasing or carrying or trading in any securities. If requested by
any Lender or the Administrative Agent, the Borrower will furnish to the
Administrative Agent and each Lender a statement to the foregoing effect in
conformity with the requirements of FR Form U-1 referred to in said Regulation
U. No indebtedness being reduced or retired out of the proceeds of the Loans
hereunder was or will be incurred for the purpose of purchasing or carrying any
margin stock within the meaning of Regulation U or any "margin security" within
the meaning of Regulation T. "Margin stock" within the meaning of Regulation U
does not constitute more than 25% of the value of the consolidated assets of
the Borrower and its Subsidiaries. Neither the execution and delivery hereof by
the Borrower, nor the performance by it of any of the transactions contemplated
by this Agreement (including the direct or indirect use of the proceeds of the
Loans) will violate or result in a violation of the Securities Act of 1933, as
amended, or the Securities Exchange Act of 1934, as amended, or regulations
issued pursuant thereto, or Regulation T, U, or X.

                                  ARTICLE VI
                REPRESENTATIONS AND WARRANTIES OF THE GUARANTORS
                ------------------------------------------------

         Each of the Guarantors separately represents and warrants that:

         6.01 Corporate Existence and Power.

         (a) Such Guarantor is a corporation (sociedad anonima de capital
   variable) duly incorporated, validly existing and in good standing under the
   laws of Mexico and has all requisite corporate power and authority
   (including all governmental licenses, permits and other approvals except for
   such licenses, permits and approvals the absence of which will not have a
   Material Adverse Effect) to own its assets and carry on its business as now
   conducted and as proposed to be conducted.

         (b) All of the outstanding stock of such Guarantor has been validly
   issued and is fully paid and non-accessible.

         6.02 Power and Authority; Enforceable Obligations.

         (a) The execution, delivery and performance by such Guarantor of each
   Transaction Document to which it is or will be a party, and the consummation
   of the transactions contemplated hereby and thereby, are within such
   Guarantor's corporate powers and have been duly authorized by all necessary
   corporate action pursuant to the estatutos sociales of such Guarantor.

         (b) This Agreement and the other Transaction Documents to which such
   Guarantor is a party have been duly executed and delivered by such Guarantor
   and constitute legal, valid and binding obligations of such Guarantor
   enforceable in accordance with their respective terms, except as
   enforceability may be limited by applicable concurso mercantil, bankruptcy,
   insolvency, reorganization, moratorium or similar laws affecting creditors'
   rights generally or general equity principals.

         6.03 Compliance with Law and Other Instruments. The execution,
delivery and performance of this Agreement and any of the other Transaction
Documents to which such Guarantor is a party and the consummation of the
transactions herein or therein contemplated, and compliance with the terms and
provisions hereof and thereof, do not and will not (a) conflict with, or result
in a breach or violation of, or constitute a default under, or result in the
creation or imposition of any Lien upon the assets of such Guarantor pursuant
to, any Contractual Obligation of such Guarantor or (b) result in any violation
of the estatutos sociales of such Guarantor or any provision of any Requirement
of Law applicable to such Guarantor.

         6.04 Consents/Approvals. No order, permission, consent, approval,
license, authorization, registration or validation of, or notice to or filing
with, or exemption by, any Governmental Authority or third party is required to
authorize, or is required in connection with, the execution, delivery and
performance by such Guarantor of this Agreement and the other Transaction
Documents to which such Guarantor is a party or the taking of any action
contemplated hereby or by any other Transaction Document.

         6.05 Litigation; Material Adverse Effect. Except as set forth in
Schedule 6.05, there is no pending or threatened action, suit, investigation,
litigation or proceeding, including any Environmental Action, affecting the
Borrower or any of its Subsidiaries before any court, Governmental Authority or
arbitrator that (i) would be reasonably likely to have a Material Adverse
Effect or (ii) purports to affect the legality, validity or enforceability of
any Transaction Document or the consummation of the transactions contemplated
thereby, and there has been no adverse change in the status, or financial
effect on the Borrower or any of its Subsidiaries, of the litigation described
in Schedule 6.05.

         6.06 No Immunity. Such Guarantor is subject to civil and commercial
law with respect to its obligations under this Agreement and each other
Transaction Document to which it is a party and the execution, delivery and
performance of this Agreement or any such other Transaction Document by such
Guarantor constitute private and commercial acts rather than public or
governmental acts. Under the laws of Mexico neither such Guarantor nor any of
its property has any immunity from jurisdiction of any court or any legal
process (whether through service or notice, attachment prior to judgment or
attachment in aid of execution).

         6.07 Governmental Regulations. Such Guarantor is not, and is not
controlled by, (a) an "investment company" within the meaning of the United
States Investment Company Act of 1940, as amended or (b) a "holding company",
or a "subsidiary company" of a "holding company", or an "affiliate" of a
"holding company" or of a "subsidiary" of a "holding company", within the
meaning of the Public Utility Holding Company Act of 1935, as amended.

         6.08 Direct Obligations; Pari Passu.

(a)     This Agreement constitutes a direct, unconditional unsubordinated and
        unsecured obligation of such Guarantor.

(b)     The obligations of such Guarantor under this Agreement rank and will
        rank in priority of payment at least pari passu with all other senior
        unsecured Debt of such Guarantor.

         6.09 No Recordation Necessary. This Agreement is in proper legal form
under the law of Mexico for the enforcement thereof against such Guarantor
under the law of Mexico. To ensure the legality, validity, enforceability or
admissibility in evidence of this Agreement and each other Transaction Document
in Mexico, it is not necessary that this Agreement or any other Transaction
Document be filed or recorded with any Governmental Authority in Mexico or that
any stamp or similar tax be paid on or in respect of this Agreement or any
other document to be furnished under this Agreement unless such stamp or
similar taxes have been paid by the Borrower or the Guarantors; provided,
however, that in the event any legal proceedings are brought in the courts of
Mexico, an official Spanish translation of the documents required in such
proceedings, including this Agreement, would have to be approved by the court
after the defendant is given an opportunity to be heard with respect to the
accuracy of the translation, and proceedings would thereafter be based upon the
translated documents.

         6.10 Choice of Law; Submission to Jurisdiction and Waiver of Sovereign
Immunity. In any action or proceeding involving such Guarantor arising out of
or relating to this Agreement in any Mexican court or tribunal, the Lenders,
the Joint Bookrunners and the Administrative Agent would be entitled to the
recognition and effectiveness of the choice of law, submission to jurisdiction
and waiver of sovereign immunity provisions of Sections 13.10, 13.11 and 13.13.

                                  ARTICLE VII
                             AFFIRMATIVE COVENANTS
                             ---------------------

         The Borrower covenants and agrees that for so long as any Obligation
under this Agreement or any other Transaction Document remains unpaid or any
Lender has any Commitment hereunder:

         7.01 Financial Reports and Other Information. The Borrower will
deliver to the Administrative Agent (with a copy for each Lender):

         (a) as soon as available and in any event within 120 days after the
   end of each fiscal year of the Borrower, a copy of the annual audit report
   for such year for the Borrower and its Subsidiaries containing consolidated
   and consolidating balance sheets of the Borrower and its Subsidiaries, as of
   the end of such fiscal year and consolidated statements of income and cash
   flows of the Borrower and its Subsidiaries, for such fiscal year, in each
   case accompanied by an opinion acceptable to the Required Lenders by KPMG
   Cardenas Dosal, S.C. or other independent public accountants of recognized
   standing acceptable to the Required Lenders, together with (i) a certificate
   of such accounting firm to the Lenders stating that in the course of the
   regular audit of the business of the Borrower and its Subsidiaries, which
   audit was conducted by such accounting firm in accordance with Mexican GAAP,
   such accounting firm has obtained no knowledge that a Default or Event of
   Default has occurred and is continuing, or if, in the opinion of such
   accounting firm a Default or Event of Default has occurred and is
   continuing, a statement as to the nature thereof and (ii) a certificate of a
   Responsible Officer of the Borrower, stating that no Default or Event of
   Default has occurred and is continuing or, if a Default or Event of Default
   has occurred and is continuing, a statement as to the nature thereof and the
   action that the Borrower has taken and proposes to take with respect
   thereto; provided that in the event of any change in the Mexican GAAP used
   in the preparation of such financial statements, the Borrower shall also
   provide, for informational purposes only, a statement of reconciliation
   conforming such financial statements to Mexican GAAP consistent with those
   applied in the preparation of the financial statements referred to in
   Section 5.05 and provided further that all such documents will be prepared
   in English; and

         (b) as soon as available and in any event within 60 days after the end
   of each of the first three quarters of each fiscal year of the Borrower,
   consolidated balance sheets of the Borrower and its Subsidiaries, as of the
   end of such quarter and consolidated statements of income and cash flows of
   the Borrower and its Subsidiaries for the period commencing at the end of
   the previous fiscal year and ending with the end of such quarter, duly
   certified (subject to year-end audit adjustments) by any Responsible Officer
   of the Borrower as having been prepared in accordance with Mexican GAAP and
   together with a certificate of a Responsible Officer of the Borrower, as to
   compliance with the terms of this Agreement and stating that no Default or
   Event of Default has occurred and is continuing or, if a Default or Event of
   Default has occurred and is continuing, a statement as to the nature thereof
   and the action that the Borrower has taken and proposes to take with respect
   thereto; provided that in the event of any change in the Mexican GAAP used
   in the preparation of such financial statements, the Borrower shall also
   provide, for informational purposes only, a statement of reconciliation
   conforming such financial statements to Mexican GAAP consistent with those
   applied in the preparation of the financial statements referred to in
   Section 5.05 and provided further that all such documents will be prepared
   in English; and

         (c) Together with the financials delivered pursuant to Section 7.01(b)
   with respect to the fiscal quarter ended June 30, 2005 only, a schedule of
   all Material Subsidiaries of the Borrower, after giving effect to the
   acquisition of RMC Group p.l.c.

         7.02 Notice of Default and Litigation. The Borrower will furnish to
the Administrative Agent (and the Administrative Agent will notify each
Lender):

         (a) as soon as practicable and in any event within five days after the
   occurrence of each Default or Event of Default continuing on the date of
   such statement, a statement of the chief financial officer of the Borrower
   setting forth details of such Default or Event of Default and the action
   that the Borrower has taken and proposes to take with respect thereto; and

         (b) promptly after the commencement thereof, notice of all litigation,
   actions, investigations and proceedings before any court, Governmental
   Authority or arbitrator affecting the Borrower or any of its Subsidiaries of
   the type described in Section 5.06 or the receipt of written notice by the
   Borrower or any of its subsidiaries of potential liability or responsibility
   for violation, or alleged violation of any federal, state or local law, rule
   or regulation (including Environmental Laws) the violation of which could
   reasonably be expected to have a Material Adverse Effect.

         7.03 Compliance with Laws and Contractual Obligations, Etc. The
Borrower will comply, and cause each of its Subsidiaries to comply, in all
material respects, with all applicable Requirements of Law (including with
respect to the licenses, approvals, certificates, permits, franchises, notices,
registrations and other governmental authorizations necessary to the ownership
of its respective properties or to the conduct of its respective business,
antitrust laws or Environmental Laws and laws with respect to social security
and pension funds obligations) and all material Contractual Obligations, except
where the failure to so comply could not reasonably be expected to have a
Material Adverse Effect.

         7.04 Payment of Obligations. The Borrower will pay and discharge, and
cause each of its Subsidiaries to pay and discharge, before the same shall
become delinquent, (a) all taxes, assessments and governmental charges or
levies assessed, charged or imposed upon it or upon its property and (b) all
lawful claims that, if unpaid, might by law become a Lien upon its property,
except where the failure to make such payments or effect such discharges could
not reasonably be expected to have a Material Adverse Effect; provided,
however, that neither the Borrower nor any of its Subsidiaries shall be
required to pay or discharge or cause to be paid or discharged any such tax,
assessment, charge or claim that is being contested in good faith and by proper
proceedings and as to which appropriate reserves are being maintained, unless
and until any Lien resulting therefrom attaches to its property and becomes
enforceable against its other creditors.

         7.05 Maintenance of Insurance. The Borrower will maintain, and cause
each of its Subsidiaries to maintain, insurance with reputable insurance
companies or associations in such amounts and covering such risks as is usually
carried by companies of established reputation engaged in similar businesses
and owning similar properties in the same general areas in which the Borrower
or such Subsidiary operates.

         7.06 Conduct of Business and Preservation of Corporate Existence. The
Borrower will continue to engage in business of the same general type as now
conducted by the Borrower and will preserve and maintain, and cause each of its
Material Subsidiaries to preserve and maintain, its corporate existence, rights
(charter and statutory), licenses, consents, permits, notices or approvals and
franchises deemed material to its business; provided that neither the Borrower
nor any of its Subsidiaries shall be required to maintain its corporate
existence in connection with a merger or consolidation in compliance with
Section 8.03; and provided, further that neither the Borrower nor any of its
Subsidiaries shall be required to preserve any right or franchise if the
Borrower or any such Subsidiary shall in its good faith judgment, determine
that the preservation thereof is no longer in the best interests of the
Borrower or such Subsidiary, as the case may be, and that the loss thereof
could not reasonably be expected to have a Material Adverse Effect.

         7.07 Books and Records. The Borrower will keep, and cause each of its
Subsidiaries to keep, proper books of record and account, in which full and
correct entries shall be made of all financial transactions and the assets and
business of the Borrower and each such Subsidiary in accordance with Mexican
GAAP, consistently applied.

         7.08 Maintenance of Properties, Etc. The Borrower will:

         (a) maintain and preserve, and cause each of its Subsidiaries to
   maintain and preserve, all of its properties that are used or useful in the
   conduct of its business in good working order and condition, ordinary wear
   and tear excepted, and

         (b) maintain, preserve and protect all intellectual property and all
   necessary governmental and third party approvals, franchises, licenses and
   permits, material to the business of the Borrower or its Subsidiaries,
   provided neither paragraph (a) nor this paragraph (b) shall prevent the
   Borrower or any of its Subsidiaries from discontinuing the operation and
   maintenance of any of its properties or allowing to lapse certain approvals,
   licenses or permits which discontinuance is desirable in the conduct of its
   business and which discontinuance could not, individually or in the
   aggregate, reasonably be expected to have a Material Adverse Effect.

         7.09 Use of Proceeds. The Borrower will use the proceeds of all Loans
made hereunder for general corporate purposes (including the repayment of
existing indebtedness).

         7.10 Aggregate Exposure. The Borrower will ensure that at no time
shall the Aggregate Exposure of the Lenders exceed the Aggregate Committed
Amount then in effect.

         7.11 Pari Passu Ranking. The Borrower will ensure that at all times
the Obligations of the Borrower and each of the Guarantors under the
Transaction Documents constitute unconditional general obligations of such
Obligor ranking in priority of payment at least pari passu with all other
senior unsecured, unsubordinated Debt of such Obligor.

         7.12 Transactions with Affiliates. The Borrower will conduct, and
cause each of its Subsidiaries to conduct, all transactions otherwise permitted
under this Agreement with any of its Affiliates on terms that are commercially
reasonable and no less favorable to the Borrower or such Subsidiary than it
would obtain in a comparable arm's-length transaction with a Person not an
Affiliate.

         7.13 Maintenance of Governmental Approvals. The Borrower will maintain
in full force and effect at all times all approvals of and filings with any
Governmental Authority or third Party required under applicable law for the
conduct of its business (including, without limitation, antitrust laws or
Environmental Laws) and the performance of the Obligors' obligations hereunder
and under the other Transaction Documents by the Borrower and/or the
Guarantors, as applicable, and for the validity or enforceability hereof and
thereof, except where failure to maintain any such approvals or filings could
not reasonably be expected to have a Material Adverse Effect.

         7.14 Measurement Date. The Borrower shall provide to the
Administrative Agent a certificate of a Responsible Officer detailing the
latest twelve month total Consolidated Net Debt/EBITDA Ratio as soon as
practicable, but in no event later than five Business Days after the
consolidated financial statements of the Borrower and its Subsidiaries are
delivered pursuant to Section 7.01 (each such date a "Measurement Date").

         7.15 Inspection of Property. At any reasonable time during normal
business hours and from time to time with at least ten Business Days prior
notice, or at any time if a Default or Event of Default shall have occurred and
be continuing, permit the Administrative Agent or any of the Lenders or any
agents or representatives thereof to examine and make abstracts from the
records and books of account of, and visit the properties of, each of the
Borrower or the Guarantors, and to discuss the affairs, finances and accounts
of the Borrower or such Guarantor with any of its officers or directors and
with its independent certified public accountants. All expenses associated with
such inspection shall be borne by the inspecting Lenders; provided that if a
Default or an Event of Default shall have occurred and be continuing, any
expenses associated with such inspection shall be borne jointly and severally
by the Borrower and the Guarantors.

                                  ARTICLE VIII
                               NEGATIVE COVENANTS
                               ------------------

         The Borrower covenants and agrees that for so long as any Obligation
under this Agreement or any other Transaction Document remains unpaid or any
Lender has any Commitment hereunder:

         8.01 Financial Conditions.

         (a) The Borrower shall not permit the Consolidated Net Debt / EBITDA
   Ratio at any time to exceed 3.5 to 1.

         (b) The Borrower shall not permit the Consolidated Fixed Charge
   Coverage Ratio for any period of four consecutive fiscal quarters to be less
   than 2.5 to 1.

         (c) Concurrently with the delivery by the Borrower of any financial
   statements pursuant to Section 7.01, the Borrower shall deliver to the
   Administrative Agent (with a copy to each Lender) a certificate from a
   Responsible Officer containing all information and calculations necessary
   for determining compliance by the Borrower with Sections 8.01 (a) and (b)
   above.

         8.02 Liens. The Borrower shall not, and shall not permit any of its
Subsidiaries to, directly or indirectly, create, incur, assume or permit to
exist any Lien on or with respect to any property or asset of the Borrower or
any Subsidiary, whether now owned or held or hereafter acquired, other than the
following Liens ("Permitted Liens"):

         (a) Liens for taxes, assessments and other governmental charges the
   payment of which is being contested in good faith by appropriate proceedings
   promptly initiated and diligently conducted and for which adequate reserves
   or other appropriate provision, if any, as shall be required by Mexican GAAP
   shall have been made;

         (b) statutory Liens of landlords and Liens of carriers, warehousemen,
   mechanics and materialmen incurred in the ordinary course of business for
   sums not yet due or the payment of which is being contested in good faith by
   appropriate proceedings promptly initiated and diligently conducted and for
   which such reserves or other appropriate provision, if any, as shall be
   required by Mexican GAAP shall have been made;

         (c) Liens incurred or deposits made in the ordinary course of business
   in connection with workers' compensation, unemployment insurance and other
   types of social security;

         (d) any attachment or judgment Lien, unless the judgment it secures
   shall not, within 60 days after the entry thereof, have been discharged or
   execution thereof stayed pending appeal, or shall not have been discharged
   within 60 days after the expiration of any such stay;

         (e) Liens existing on the date of this Agreement (other than liens
   with respect to the acquisition of RMC Group p.l.c.) that are described in
   Schedule 8.02(e)(i) hereto and liens existing as of March 31, 2005
   (including liens with respect to the acquisition of RMC Group p.l.c.) that
   are described in Schedule 8.02(e)(ii) hereto;

         (f) any Lien on property acquired by the Borrower after the date
   hereof that was existing on the date of acquisition of such property;
   provided that such Lien was not incurred in anticipation of such
   acquisition, and any Lien created to secure all or any part of the purchase
   price, or to secure Debt incurred or assumed to pay all or any part of the
   purchase price, of property acquired by the Borrower or any of its
   Subsidiaries after the date hereof; provided, further, that (A) any such
   Lien permitted pursuant to this clause (f) shall be confined solely to the
   item or items of property so acquired (including, in the case of any
   Acquisition of a corporation through the acquisition of 51% or more of the
   voting stock of such corporation, the stock and assets of any Acquired
   Subsidiary or Acquiring Subsidiary) and, if required by the terms of the
   instrument originally creating such Lien, other property which is an
   improvement to, or is acquired for specific use with, such acquired
   property; and (B) if applicable, any such Lien shall be created within nine
   months after, in the case of property, its acquisition, or, in the case of
   improvements, their completion;

         (g) any Lien renewing, extending or refunding any Lien permitted by
   clause (f) above; provided that the principal amount of Debt secured by such
   Lien immediately prior thereto is not increased or the maturity thereof
   reduced and such Lien is not extended to other property;

         (h) any Liens created on shares of capital stock of the Borrower or
   any of its Subsidiaries solely as a result of the deposit or transfer of
   such shares into a trust or a special purpose vehicle (including any entity
   with legal personality) of which such shares constitute the sole assets;
   provided that (A) any shares of Subsidiary stock held in such trust,
   corporation or entity could be sold by the Borrower; and (B) proceeds from
   the deposit or transfer of such shares into such trust, corporation or
   entity and from any transfer of or distributions in respect of the
   Borrower's or any Subsidiary's interest in such trust, corporation or entity
   are applied as provided under Section 8.04; and provided, further that such
   Liens may not secure Debt of the Borrower or any Subsidiary (unless
   permitted under another clause of this Section 8.02);

         (i) any Liens on securities securing repurchase obligations in respect
   of such securities;

         (j) any Liens in respect of any Receivables Program Assets which are
   or may be sold or transferred pursuant to a Qualified Receivables
   Transaction; and

         (k) in addition to the Liens permitted by the foregoing clauses (a)
   through (j), Liens securing Debt of the Borrower and its Subsidiaries (taken
   as a whole) not in excess of 5% of the Adjusted Consolidated Net Tangible
   Assets of the Borrower and its Subsidiaries;

unless, in each case, the Borrower has made or caused to be made effective
provision whereby the Obligations hereunder are secured equally and ratably
with, or prior to, the Debt secured by such Liens (other than Permitted Liens)
for so long as such Debt is so secured.

         8.03 Consolidations and Mergers. None of the Guarantors nor the
Borrower shall, in one or more related transactions, (x) consolidate with or
merge into any other Person or permit any other Person to merge into it or (y),
directly or indirectly, transfer, convey, sell, lease or otherwise dispose of
all or substantially all of its properties or assets to any Person, unless,
with respect to any transaction described in clause (x) or (y), immediately
after giving effect to such transaction:

         (a) the Person formed by any such consolidation or merger, if it is
   not the Borrower or such Guarantor, or the Person that acquires by transfer,
   conveyance, sale, lease or other disposition all or substantially all of the
   properties and assets of the Borrower or such Guarantor (any such Person, a
   "Successor") (i) shall be a corporation organized and validly existing under
   the laws of its place of incorporation, which in the case of a Successor to
   the Borrower shall be Mexico, the United States, Canada, France, Belgium,
   Germany, Italy, Luxembourg, the Netherlands, Portugal, Spain, Switzerland or
   the United Kingdom, or any political subdivision thereof, (ii) in the case
   of a Successor to the Borrower, shall expressly assume, pursuant to a
   written agreement in form and substance satisfactory to the Required
   Lenders, the Obligations of the Borrower pursuant to this Agreement and the
   performance of every covenant on part of the Borrower to be performed and
   observed and (iii) in the case of a Successor to any Guarantor, shall
   expressly assume, pursuant to a written agreement in form and substance
   satisfactory to the Required Lenders, the performance of every covenant of
   this Agreement on part of such Guarantor to be performed and observed;

         (b) in the case of any such transaction involving the Borrower or any
   Guarantor, the Borrower or such Guarantor, or the Successor of any thereof,
   as the case may be, shall expressly agree to indemnify each Lender and the
   Administrative Agent against any tax, levy, assessment or governmental
   charge payable by withholding or deduction thereafter imposed on such Lender
   and/or the Administrative Agent solely as a consequence of such transaction
   with respect to payments under the Transaction Documents;

         (c) immediately after giving effect to such transaction, including for
   purposes of this clause (c) the substitution of any Successor to the
   Borrower for the Borrower or the substitution of any Successor to a
   Guarantor for such Guarantor and treating any Debt or Lien incurred by the
   Borrower or any Successor to the Borrower, or by a Guarantor of the Borrower
   or any Successor to such Guarantor, as a result of such transactions as
   having been incurred at the time of such transaction, no Default or Event of
   Default shall have occurred and be continuing; and

         (d) the Borrower shall have delivered to the Administrative Agent an
   officer's certificate and an opinion of counsel, each stating that such
   consolidation, merger, conveyance, transfer or lease and, if a written
   agreement is required in connection with such transaction, such written
   agreement comply with the relevant provisions of this Article VIII and that
   all conditions precedent provided for in this Agreement relating to such
   transaction have been complied with.

         8.04 Sales of Assets, Etc. The Borrower will not, and will not permit
any of its Material Subsidiaries to, sell, lease or otherwise dispose of any of
its assets (including the capital stock of any Subsidiary), other than (a)
inventory, trade receivables and assets surplus to the needs of the business of
the Borrower or any Subsidiary sold in the ordinary course of business and (b)
assets not used, usable or held for use in connection with cement operations
and related operations, unless the proceeds of the sale of such assets are
retained by the Borrower or such Subsidiary, as the case may be, and, as
promptly as practicable after such sale (but in any event within 180 days of
such sale), the proceeds are applied to (i) expenditures for property, plant
and equipment usable in the cement industry or related industries; (ii) the
repayment of senior Debt of the Borrower or any of its Subsidiaries, whether
secured or unsecured; or (iii) investments in companies engaged in the cement
industry or related industries.

         8.05 Change in Nature of Business. The Borrower shall not make, or
permit any of its Material Subsidiaries to make, any material change in the
nature of its business as carried on at the date hereof.

         8.06 Margin Regulations. The Borrower shall not use any part of the
proceeds of the Loans for any purpose which would result in any violation
(whether by the Borrower, the Administrative Agent or the Lenders) of
Regulation T, U or X of the Federal Reserve Board or to extend credit to others
for any such purpose. The Borrower shall not engage in, or maintain as one of
its important activities, the business of extending credit for the purpose of
purchasing or carrying any margin stock (as defined in such regulations).

                                   ARTICLE IX
                           OBLIGATIONS OF GUARANTORS
                           -------------------------

         9.01 The Guaranty. Each of the Guarantors jointly and severally hereby
unconditionally and irrevocably guarantees (as a primary obligor and not merely
as surety) payment in full as provided herein of all Obligations payable by the
Borrower to each Lender, the Administrative Agent and the Joint Bookrunners
under this Agreement and the other Transaction Documents and the Fee Letter, as
and when such amounts become payable (whether at stated maturity, by
acceleration or otherwise).

         9.02 Nature of Liability. The obligations of the Guarantors hereunder
are guarantees of payment and shall remain in full force and effect until all
Obligations of the Borrower have been validly, finally and irrevocably paid in
full and all Commitments have been terminated, and shall not be affected in any
way by the absence of any action to obtain such amounts from the Borrower or by
any variation, extension, waiver, compromise or release of any or all
Obligations from time to time therefor. Each Guarantor waives all requirements
as to promptness, diligence, presentment, demand for payment, protest and
notice of any kind with respect to this Agreement and the other Transaction
Documents.

         9.03 Unconditional Obligations. Notwithstanding any contrary
principles under the laws of any jurisdiction other than the State of New York,
the obligations of each of the Guarantors hereunder shall be unconditional,
irrevocable and absolute and, without limiting the generality of the foregoing,
shall not be impaired, terminated, released, discharged or otherwise affected
by the following:

         (a) the existence of any claim, set-off or other right which either of
   the Guarantors may have at any time against the Borrower, the Administrative
   Agent, any Lenders or any other Person, whether in connection with this
   transaction or with any unrelated transaction;

         (b) any invalidity or unenforceability of this Agreement or any other
   Transaction Document relating to or against the Borrower or either of the
   Guarantors for any reason;

         (c) any provision of applicable law or regulation purporting to
   prohibit the payment by the Borrower of any amount payable by the Borrower
   under this Agreement or any of the other Transaction Documents or the
   payment, observance, fulfillment or performance of any other Obligations;

         (d) any change in the name, purposes, business, capital stock
   (including the ownership thereof) or constitution of the Borrower;

         (e) any amendment, waiver or modification of any Transaction Document
   in accordance with the terms hereof and thereof; or

         (f) any other act or omission to act or delay of any kind by the
   Borrower, the Administrative Agent, the Lenders or any other Person or any
   other circumstance whatsoever which might otherwise constitute a legal or
   equitable discharge of or defense to either of the Guarantors' obligations
   hereunder.

         9.04 Independent Obligation. The obligations of each of the Guarantors
hereunder are independent of the Borrower's obligations under the Transaction
Documents and of any guaranty or security that may be obtained for the
Obligations. The Administrative Agent and the Lenders may neglect or forbear to
enforce payment hereunder, under any Transaction Document or under any guaranty
or security, without in any way affecting or impairing the liability of each
Guarantor hereunder. The Administrative Agent or the Lenders shall not be
obligated to exhaust recourse or take any other action against the Borrower or
under any agreement to purchase or security which the Administrative Agent or
the Lenders may hold before being entitled to payment from the Guarantors of
the obligations hereunder or proceed against or have resort to any balance of
any deposit account or credit on the books of the Administrative Agent or the
Lenders in favor of the Borrower or each of the Guarantors. Without limiting
the generality of the foregoing, the Administrative Agent or the Lenders shall
have the right to bring suit directly against either of the Guarantors, either
prior or subsequent to or concurrently with any lawsuit against, or without
bringing suit against, the Borrower and/or the other Guarantor.

         9.05 Waiver of Notices. Each of the Guarantors hereby waives notice of
acceptance of this ARTICLE IX and notice of any liability to which it may
apply, and waives presentment, demand for payment, protest, notice of dishonor
or nonpayment of any such liability, suit or the taking of other action by the
Administrative Agent or the Lenders against, and any other notice, to the
Guarantors.

         9.06 Waiver of Defenses. To the extent permitted by New York law and
notwithstanding any contrary principles under the laws of any other
jurisdiction, each of the Guarantors hereby waives any and all defenses to
which it may be entitled, whether at common law, in equity or by statute which
limits the liability of, or exonerates, guarantors or which may conflict with
the terms of this ARTICLE IX, including failure of consideration, breach of
warranty, statute of frauds, merger or consolidation of the Borrower, statute
of limitations, accord and satisfaction and usury. Without limiting the
generality of the foregoing, each of the Guarantors consents that, without
notice to such Guarantor and without the necessity for any additional
endorsement or consent by such Guarantor, and without impairing or affecting in
any way the liability of such Guarantor hereunder, the Administrative Agent and
the Lenders may at any time and from time to time, upon or without any terms or
conditions and in whole or in part, (a) change the manner, place or terms of
payment of, and/or change or extend the time or payment of, renew or alter, any
of the Obligations, any security therefor, or any liability incurred directly
or indirectly in respect thereof, and this ARTICLE IX shall apply to the
Obligations as so changed, extended, renewed or altered; (b) exercise or
refrain from exercising any right against the Borrower or others (including the
Guarantors) or otherwise act or refrain from acting, (c) settle or compromise
any of the Obligations, any security therefor or any liability (including any
of those hereunder) incurred directly or indirectly in respect thereof or
hereof, and may subordinate the payment of all or any part thereof to the
payment of any such liability (whether due or not) of the Borrower to creditors
of the Borrower other than the Administrative Agent and the Lenders and the
Guarantors, (d) apply any sums by whomsoever paid or howsoever realized, other
than payments of the Guarantors of the Obligations, to any liability or
liabilities of the Borrower under the Transaction Documents or any instruments
or agreements referred to herein or therein, to the Administrative Agent and
the Lenders regardless of which of such liability or liabilities of the
Borrower under the Transaction Documents or any instruments or agreements
referred to herein or therein remain unpaid; (e) consent to or waive any breach
of, or any act, omission or default under the Obligations or any of the
instruments or agreements referred to in this Agreement and the other
Transaction Documents, or otherwise amend, modify or supplement the Obligations
or any of such instruments or agreements, including the Transaction Documents;
and/or (f) request or accept other support of the Obligations or take and hold
any security for the payment of the Obligations or the obligations of the
Guarantors under this ARTICLE IX, or allow the release, impairment, surrender,
exchange, substitution, compromise, settlement, rescission or subordination
thereof. Furthermore, each of the Guarantors hereby waives to the extent
permitted by law any right to which it may be entitled to under Articles 2830,
2836, 2842, 2845, 2846, 2848 and 2849 of the Mexican Federal Civil Code and
related Articles contained in the Civil Codes of the States in Mexico. The
Guarantors further expressly waive the benefits of order, excusion y division
contained in Articles 2814, 2815, 2817, 2818, 2820, 2821, 2822, 2823, 2837,
2838, 2840, 2841 and other related Articles of the Mexican Federal Civil Code
and related Articles contained in other Civil Codes of the States of Mexico.
The Guarantors hereby represent that the terms of each such provision of each
such civil code are known in form and substance to each such Guarantor.

         9.07 Bankruptcy and Related Matters.

         (a) So long as any of the Obligations remain outstanding, each of the
   Guarantors shall not, without the prior written consent of the
   Administrative Agent (acting with the consent of the Required Lenders),
   commence or join with any other Person in commencing any bankruptcy,
   liquidation, reorganization, concurso mercantil or insolvency proceedings
   of, or against, the Borrower.

         (b) If acceleration of the time for payment of any amount payable by
   the Borrower under this Agreement or the Notes is stayed upon the
   insolvency, bankruptcy, reorganization, concurso mercantil or any similar
   event of the Borrower or otherwise, all such amounts otherwise subject to
   acceleration under the terms of this Agreement shall nonetheless be payable
   by the Guarantors hereunder forthwith on demand by the Administrative Agent
   made at the request of the Lenders.

         (c) The obligations of each of the Guarantors under this ARTICLE IX
   shall not be reduced, limited, impaired, discharged, deferred, suspended or
   terminated by any proceeding or action, voluntary or involuntary, involving
   the bankruptcy, insolvency, concurso mercantil, receivership,
   reorganization, marshalling of assets, assignment for the benefit of
   creditors, readjustment, liquidation or arrangement of the Borrower or
   similar proceedings or actions or by any defense which the Borrower may have
   by reason of the order, decree or decision of any court or administrative
   body resulting from any such proceeding or action. Without limiting the
   generality of the foregoing, the Guarantors' liability shall extend to all
   amounts and obligations that constitute the Obligations and would be owed by
   the Borrower but for the fact that they are unenforceable or not allowable
   due to the existence of any such proceeding or action.

         (d) Each of the Guarantors acknowledges and agrees that any interest
   on any portion of the Obligations which accrues after the commencement of
   any proceeding or action referred to above in Section 9.07(c) (or, if
   interest on any portion of the Obligations ceases to accrue by operation of
   law by reason of the commencement of said proceeding or action, such
   interest as would have accrued on such portion of the Obligations if said
   proceedings or actions had not been commenced) shall be included in the
   Obligations, it being the intention of the Guarantors, the Administrative
   Agent, and the Lenders that the Obligations which are to be guaranteed by
   the Guarantors pursuant to this ARTICLE IX shall be determined without
   regard to any rule of law or order which may relieve the Borrower of any
   portion of such Obligations. The Guarantors will take no action to prevent
   any trustee in bankruptcy, receiver, debtor in possession, assignee for the
   benefit of creditors or similar person from paying the Administrative Agent,
   or allowing the claim of the Administrative Agent, for the benefit of the
   Administrative Agent, and the Lenders, in respect of any such interest
   accruing after the date of which such proceeding is commenced, except to the
   extent any such interest shall already have been paid by the Guarantors.

         (e) Notwithstanding anything to the contrary contained herein, if all
   or any portion of the Obligations are paid by or on behalf of the Borrower,
   the obligations of the Guarantors hereunder shall continue and remain in
   full force and effect or be reinstated, as the case may be, in the event
   that all or any part of such payment(s) are rescinded or recovered, directly
   or indirectly, from the Administrative Agent and/or the Lenders as a
   preference, preferential transfer, fraudulent transfer or otherwise, and any
   such payments which are so rescinded or recovered shall constitute
   Obligations for all purposes under this ARTICLE IX, to the extent permitted
   by applicable law.

         9.08 No Subrogation. Notwithstanding any payment or payments made by
any of the Guarantors hereunder or any set-off or application of funds of any
of the Guarantors by the Administrative Agent or any Lender, no Guarantor shall
be entitled to be subrogated to any of the rights of the Administrative Agent
or any Lender against the Borrower or any other Guarantor or any collateral
security or guarantee or right of offset held by the Administrative Agent or
any Lender for the payment of the Obligations, nor shall any Guarantor seek or
be entitled to seek any contribution or reimbursement from the Borrower or any
other Guarantor in respect of payments made by such Guarantor hereunder, until
all amounts owing to the Administrative Agent and the Lenders by the Borrower
on account of the Obligations shall have been indefeasibly paid in full in
cash. If any amount shall be paid to any Guarantor on account of such
subrogation rights at any time when all of the Obligations shall not have been
indefeasibly paid in full in cash, such amount shall be held by such Guarantor
in trust for the Administrative Agent and the Lenders, segregated from other
funds of such Guarantor, and shall, forthwith upon receipt by such Guarantor,
be turned over to the Administrative Agent in the exact form received by such
Guarantor (duly indorsed by such Guarantor to the Administrative Agent, if
required), to be applied against the Obligations, whether matured or unmatured,
in such order as the Administrative Agent may determine.

         9.09 Right of Contribution. Subject to Section 9.08, each Guarantor
hereby agrees that to the extent that a Guarantor shall have paid more than its
proportionate share of any payment made hereunder, such Guarantor shall be
entitled to seek and receive contribution from and against any other Guarantor
hereunder who has not paid its proportionate share of such payment. The
provisions of this Section 9.09 shall in no respect limit the obligations and
liabilities of any Guarantor to the Administrative Agent, the Joint Bookrunners
and the Lenders, and each Guarantor shall remain liable to the Administrative
Agent, the Joint Bookrunners and the Lenders for the full amount guaranteed by
such Guarantor hereunder.

         9.10 General Limitation on Guaranty. In any action or proceeding
involving any applicable corporate law, or any applicable bankruptcy,
insolvency, reorganization, concurso mercantil or other law affecting the
rights of creditors generally, if the obligations of any Guarantor under this
Section 9.10 would otherwise, taking into account the provisions of Section
9.09, be held or determined to be void, invalid or unenforceable, or
subordinated to the claims of any other creditors, on account of the amount of
its liability under Section 9.01, then, notwithstanding any other provision
hereof to the contrary, the amount of such liability shall, without any further
action by such Guarantor, any Lender, the Administrative Agent or any other
Person, be automatically limited and reduced to the highest amount that is
valid and enforceable and not subordinated to the claims of other creditors as
determined in such action or proceeding.

         9.11 Covenants of the Guarantors. Each Guarantor hereby covenants and
agrees that, so long as any Obligations under this Agreement and any other
Transaction Document remains unpaid or any Lender has any Commitment hereunder,
it shall comply with the covenants contained or incorporated by reference in
this Agreement to the extent applicable to it as a Subsidiary of the Borrower.

                                   ARTICLE X
                               EVENTS OF DEFAULT
                               -----------------

         10.01 Events of Default. The following specified events shall
constitute "Events of Default" for the purposes of this Agreement:

         (a) Payment Defaults. The Borrower shall (i) fail to pay any principal
   of any Loan when due in accordance with the terms hereof or (ii) fail to pay
   any interest on any Loan, any fee or any other amount payable under this
   Agreement or any Note within three Business Days after the same becomes due
   and payable; or

         (b) Representation and Warranties. Any representation or warranty made
   by the Borrower herein or in any other Transaction Document or made by
   either Guarantor herein or which is contained in any certificate, document
   or financial or other statement furnished at any time under or in connection
   with this Agreement or any other Transaction Document, as applicable, shall
   prove to have been incorrect in any material respect on or as of the date
   made if such failure shall remain unremedied for 30 days after the earlier
   of the date on which (i) the chief financial officer of the Borrower or such
   Guarantor, as the case may be, becomes aware of such incorrectness or (ii)
   written notice thereof shall have been given to the Borrower by the
   Administrative Agent; or

         (c) Specific Defaults. The Borrower or a Guarantor, as applicable,
   shall fail to perform or observe any term, covenant or agreement contained
   in Section 7.01, 7.02(a), 7.06 (with respect to the Borrower's and each
   Guarantor's existence only), 7.11 or 7.15 or ARTICLE VIII; or

         (d) Other Defaults. The Borrower or a Guarantor, as applicable, shall
   fail to perform or observe any term, covenant or agreement contained in this
   Agreement, the Notes, the Fee Letter, any Notice of Borrowings, any
   certificates, waivers, or any other agreement delivered pursuant to this
   Agreement (other than as provided in paragraphs (a) and (c) above) and such
   failure shall continue unremedied for a period of 30 days after the earlier
   of the date on which (i) the chief financial officer of the Borrower becomes
   aware of such failure or (ii) written notice thereof shall have been given
   to the Borrower by the Administrative Agent at the request of any Lender; or

         (e) Defaults under Other Agreements. The occurrence of a default or
   event of default under any indenture, agreement or instrument relating to
   any Material Debt of the Borrower or any of its Subsidiaries, and (unless
   any principal amount of such Material Debt is otherwise due and payable)
   such default or event of default results in the acceleration of the maturity
   of any principal amount of such Material Debt prior to the date on which it
   would otherwise become due and payable; or

         (f) Voluntary Bankruptcy. The Borrower or any Material Subsidiary
   shall commence a voluntary case or other proceeding seeking liquidation,
   reorganization, concurso mercantil or other relief with respect to itself or
   its debts under any bankruptcy, insolvency, reorganization or other similar
   law now or hereafter in effect or seeking the appointment of a trustee,
   receiver, liquidator, custodian or other similar official of it or any
   substantial part of its property, or shall consent to any such relief or to
   the appointment of or taking possession by any such official in an
   involuntary case or other proceeding commenced against it, or shall make a
   general assignment for the benefit of creditors, or shall fail generally to
   pay its debts as they become due, or shall take any corporate action to
   authorize any of the foregoing or the equivalent thereof under Mexican law
   (including the Ley de Concursos Mercantiles); or

         (g) Involuntary Bankruptcy. An involuntary case or other proceeding
   shall be commenced against the Borrower or any Material Subsidiary seeking
   liquidation, reorganization or other relief with respect to it or its debts
   under any bankruptcy, insolvency, concurso mercantil or other similar law
   now or hereafter in effect (including but not limited to the Ley de
   Concursos Mercantiles) or seeking the appointment of a trustee, receiver,
   liquidator, custodian or other similar official of it or any substantial
   part of its property, and such involuntary case or other proceeding shall
   remain undismissed and unstayed for a period of 60 consecutive days; or an
   order for relief shall be entered against the Borrower or any Material
   Subsidiaries under any bankruptcy, insolvency suspension de pagos or other
   similar law as now or hereafter in effect; or

         (h) Monetary Judgment. A final judgment or judgments or order or
   orders not subject to further appeal for the payment of money in an
   aggregate amount in excess of U.S.$50,000,000 shall be rendered against the
   Borrower and/or any of its one or more Subsidiaries of the Borrower that are
   neither discharged nor bonded in full within 30 days thereafter; or

         (i) Pari Passu. The Obligations of the Borrower under this Agreement
   or of any Guarantor under this Agreement shall fail to rank at least pari
   passu with all other senior unsecured Debt of the Borrower or such
   Guarantor, as the case may be; or

         (j) Validity of Agreement. The Borrower shall contest the validity or
   enforceability of any Transaction Document or shall deny generally the
   liability of the Borrower under any Transaction Documents or either
   Guarantor shall contest the validity of or the enforceability of their
   guarantee hereunder or any obligation of either Guarantor under ARTICLE IX
   hereof shall not be (or is claimed by either Guarantor not to be) in full
   force and effect;

         (k) Governmental Authority. Any governmental or other consent,
   license, approval, permit or authorization which is now or may in the future
   be necessary or appropriate under any applicable Requirement of Law for the
   execution, delivery, or performance by the Borrower or either Guarantor of
   any Transaction Document to which it is a party or to make such Transaction
   Document legal, valid, enforceable and admissible in evidence shall not be
   obtained or shall be withdrawn, revoked or modified or shall cease to be in
   full force and effect or shall be modified in any manner that would have an
   adverse effect on the rights or remedies of the Administrative Agent or the
   Lenders; or

         (l) Expropriation, Etc. Any Governmental Authority shall condemn,
   nationalize, seize or otherwise expropriate all or any substantial portion
   of the property of, or capital stock issued or owned by, the Borrower or
   either Guarantor or take any action that would prevent the Borrower or
   either Guarantor from performing its obligations under this Agreement, the
   Notes, the Fee Letter, any Notice of Borrowings, any certificates, waivers,
   or any other agreement delivered pursuant to this Agreement; or

         (m) Moratorium; Availability of Foreign Exchange. A moratorium shall
   be agreed or declared in respect of any Debt of the Borrower or either
   Guarantor or any restriction or requirement not in effect on the date hereof
   shall be imposed, whether by legislative enactment, decree, regulation,
   order or otherwise, which limits the availability or the transfer of foreign
   exchange by the Borrower or either Guarantor for the purpose of performing
   any material obligation under this Agreement, the Notes, the Fee Letter, any
   Notice of Borrowings, any certificates, waivers, or any other agreement
   delivered pursuant to this Agreement; or

         (n) Change of Ownership or Control. The beneficial ownership (within
   the meaning of Rule 13d-3 promulgated by the Securities and Exchange
   Commission under the Securities Exchange Act of 1934, as amended) of 20% or
   more in voting power of the outstanding voting stock of the Borrower or
   either Guarantor is acquired by any Person; provided that the acquisition of
   beneficial ownership of capital stock of the Borrower or either Guarantor by
   Lorenzo H. Zambrano or any member of his immediate family shall not
   constitute an Event of Default.

         10.02 Remedies. If any Event of Default has occurred and is
continuing, the Administrative Agent shall, at the request of, or may, with the
consent of, the Required Lenders:

         terminate the Commitments and/or declare by notice to the Borrower the
   principal amount of all outstanding Loans to be forthwith due and payable,
   whereupon such principal amount, together with accrued interest thereon and
   any fees and all other Obligations accrued hereunder, shall become
   immediately due and payable, without presentment, demand, protest or other
   notice of any kind, all of which are hereby expressly waived; provided,
   however, that in the case of any Event of Default specified in Section
   10.01(f) or (g), without notice or any other act by the Lenders, the
   Commitments shall be automatically terminated and the Loans (together with
   accrued interest thereon) and all other Obligations of the Borrower
   hereunder shall become immediately due and payable without presentment,
   demand, protest or other notice of any kind, all of which are hereby waived
   by the Borrower;

         10.03 Notice of Default. The Administrative Agent shall give notice to
the Borrower of any event occurring under Section 10.01(a), (b), (c) or (d)
promptly upon being requested to do so by any Lender and shall thereupon notify
all the Lenders thereof.

         10.04 Default Interest. In the event of default by the Borrower in the
payment on the due date of any sum due under this Agreement, the Borrower shall
pay interest on demand on such sum from the date of such default to the day of
actual receipt of such sum by the Administrative Agent (as well after as before
judgment) at the rate specified in Section 2.02(d). So long as the default
continues, the default interest rate shall be recalculated on the same basis at
intervals of such duration as the Administrative Agent may select, provided
that the amount of unpaid interest at the above rate accruing during the
preceding period (or such longer period as may be the shortest period permitted
by applicable law for the capitalization of interest) shall be added to the
amount in respect of which the Borrower is in default.

                                   ARTICLE XI
                            THE ADMINISTRATIVE AGENT
                            ------------------------

         11.01 Appointment and Authorization. Each Lender hereby irrevocably
designates and appoints Barclays Bank PLC as the Administrative Agent of such
Lender under this Agreement, and each Lender hereby irrevocably authorizes the
Administrative Agent to take such action on its behalf under the provisions of
this Agreement and each other Transaction Document and to exercise such powers
and perform such duties as are expressly delegated to the Administrative Agent
by the terms of this Agreement or any other Transaction Document, together with
such other powers as are reasonably incidental thereto. Notwithstanding any
provision to the contrary contained elsewhere in this Agreement or in any other
Transaction Document, the Administrative Agent shall not have any duties or
responsibilities, except those expressly set forth herein, nor shall the
Administrative Agent have or be deemed to have any fiduciary relationship with
any Lender, and no implied covenants, functions, responsibilities, duties,
obligations or liabilities shall be read into this Agreement or any other
Transaction Document or otherwise exist against the Administrative Agent.

         11.02 Delegation of Duties. The Administrative Agent may execute any
of its duties under this Agreement or any other Transaction Document by or
through agents, employees or attorneys-in-fact and shall be entitled to advice
of counsel concerning all matters pertaining to such duties. The Administrative
Agent shall not be responsible for the negligence or misconduct of any agent or
attorney-in-fact that it selects with reasonable care.

         11.03 Liability of Administrative Agent. Neither the Administrative
Agent nor any of its officers, directors, employees, agents, attorneys-in-fact
or Affiliates shall be (a) liable for any action taken or omitted to be taken
by it or any such Person under or in connection with this Agreement or any
other Transaction Document or the transactions contemplated hereby (except for
its or such Person's own gross negligence or willful misconduct), or (b)
responsible in any manner to any of the Lenders for any recital, statement,
representation or warranty made by the Borrower, the Guarantors or any officer
thereof contained in this Agreement or in any other Transaction Document, or in
any certificate, report, statement or other document referred to or provided
for in, or received by the Administrative Agent under or in connection with,
this Agreement or any other Transaction Document, or for the validity,
effectiveness, genuineness, enforceability or sufficiency of this Agreement or
any other Transaction Document, or for any failure of the Borrower, the
Guarantors or any other party to any Transaction Document to perform its
obligations hereunder or thereunder. Except as otherwise expressly stated
herein, the Administrative Agent shall not be under any obligation to any
Lender to ascertain or to inquire as to the observance or performance of any of
the agreements contained in, or conditions of, this Agreement or any other
Transaction Document, or to inspect the properties, books or records of the
Borrower or the Guarantors.

         11.04 Reliance by Administrative Agent.

         (a) The Administrative Agent shall be entitled to rely, and shall be
   fully protected in relying, upon any writing, resolution, notice, consent,
   certificate, affidavit, letter, telegram, facsimile, telex or teletype
   message, statement, order or other document or telephone conversation
   believed by it in good faith to be genuine and correct and to have been
   signed, sent or made by the proper Person or Persons, and upon advice and
   statements of legal counsel, independent accountants and other experts
   selected by the Administrative Agent. The Administrative Agent shall be
   fully justified in failing or refusing to take any action under this
   Agreement or any other Transaction Document unless it shall first receive
   such advice or concurrence of the Required Lenders as it deems appropriate
   and, if it so requests, it shall first be indemnified to its satisfaction by
   the Lenders against any and all liability and expense which may be incurred
   by it by reason of failing to take, taking or continuing to take any such
   action. The Administrative Agent shall in all cases be fully protected in
   acting, or in refraining from acting, under this Agreement or any other
   Transaction Document in accordance with a request or consent of the Required
   Lenders (or when expressly required hereby, all the Lenders) and such
   request and any action taken or failure to act pursuant thereto shall be
   binding upon all the Lenders.

         (b) For purposes of determining compliance with the conditions
   specified in Section 4.01, each Lender that has executed this Agreement
   shall be deemed to have consented to, approved or accepted or to be
   satisfied with, each document or other matter sent by the Administrative
   Agent to such Lender for consent, approval, acceptance or satisfaction on or
   before the Effective Date.

         11.05 Notice of Default. The Administrative Agent shall not be deemed
to have knowledge or notice of the occurrence of any Default or Event of
Default (except with respect to defaults in the payment of principal, interest
and fees required to be paid to the Administrative Agent for the account of the
Lenders) unless the Administrative Agent shall have received written notice
from a Lender or the Borrower referring to this Agreement and describing such
Default or Event of Default and stating that such notice is a "Notice of
Default". The Administrative Agent shall promptly notify the Lenders of its
receipt of any such notice. The Administrative Agent shall take such action
with respect to such Default or Event of Default as may be requested by the
Required Lenders; provided, however, that unless and until the Administrative
Agent has received any such request, the Administrative Agent may (but shall
not be obligated to) take such action, or refrain from taking such action, with
respect to such Default or Event of Default as it shall deem advisable or in
the best interest of the Lenders.

         11.06 Credit Decision. Each Lender expressly acknowledges that neither
the Administrative Agent nor any of its Affiliates, officers, directors,
employees, agents or attorneys-in-fact has made any representation or warranty
to it, and that no act by the Administrative Agent hereafter taken, including
any review of the affairs of the Borrower, the Guarantors, or any of their
Affiliates, shall be deemed to constitute any representation or warranty by the
Administrative Agent to any Lender. Each Lender acknowledges to the
Administrative Agent that it has, independently and without reliance upon the
Administrative Agent or any other Lender, and based on such documents and
information as it has deemed appropriate, made its own appraisal of and
investigation into the business, prospects, operations, property, financial and
other condition and creditworthiness of the Borrower, the Guarantors, and their
Affiliates and all applicable Lender regulatory laws relating to the
transactions contemplated hereby, and made its own decision to enter into this
Agreement. Each Lender also acknowledges that it will, independently and
without reliance upon the Administrative Agent or any other Lender, and based
on such documents and information as it shall deem appropriate at the time,
continue to make its own credit analysis, appraisals and decisions in taking or
not taking action under this Agreement and the other Transaction Documents, and
to make such investigations as it deems necessary to inform itself as to the
business, prospects, operations, property, financial and other condition and
creditworthiness of the Borrower or the Guarantors. Except for notices, reports
and other documents expressly herein required to be furnished to the Lenders by
the Administrative Agent, the Administrative Agent shall not have any duty or
responsibility to provide any Lender with any credit or other information
concerning the business, prospects, operations, property, financial and other
condition or creditworthiness of the Borrower or the Guarantors which may come
into the possession of the Administrative Agent or any of its Affiliates,
officers, directors, employees, agents or attorneys-in-fact.

         11.07 Indemnification. Whether or not the transactions contemplated
hereby are consummated, the Lenders agree to indemnify upon demand the
Administrative Agent and its Affiliates, directors, officers, agents and
employees (to the extent not reimbursed by the Borrower and without limiting
the obligation of the Borrower to do so), ratably according to the respective
amounts of their Commitment Percentages in effect on the date the cause for
indemnification arose, from and against any and all claims, liabilities,
obligations, losses, damages, penalties, actions, judgments, suits, costs,
expenses or disbursements of any kind whatsoever which may at any time
(including at any time following the payment of the Obligations or the
Termination Date) be imposed on, incurred by or asserted against the
Administrative Agent (or any of its Affiliates, directors, officers, agents and
employees) in any way relating to or arising out of this Agreement or any other
Transaction Document, or any documents contemplated by or referred to herein or
the transactions contemplated hereby or any action taken or omitted by the
Administrative Agent under or in connection with any of the foregoing;
provided, however, that no Lender shall be liable for the payment of any
portion of such claims, liabilities, obligations, losses, damages, penalties,
actions, judgments, suits, costs, expenses or disbursements to the extent it
results from the gross negligence or willful misconduct of the Administrative
Agent or its Affiliates, directors, officers, agents or employees. Without
limitation of the foregoing, each Lender shall reimburse the Administrative
Agent upon demand for its ratable share of any reasonable and documented costs
or out-of-pocket expenses (including legal fees) incurred by the Administrative
Agent in connection with the preparation, execution, modification, amendment or
enforcement (whether through negotiations, legal proceedings or otherwise) of,
or legal advice in respect of rights or responsibilities under, this Agreement,
any other Transaction Document, or any document contemplated by or referred to
herein, to the extent that the Administrative Agent is not reimbursed for such
expenses by or on behalf of the Borrower.

         11.08 Administrative Agent in Individual Capacity. Barclays Bank PLC
may make loans to, issue letters of credit for the account of, accept deposits
from and generally engage in any kind of banking, trust, financial advisory,
underwriting or other business with the Borrower, the Guarantors or any of
their Affiliates as though Barclays Bank PLC were not the Administrative Agent
hereunder and without notice to or consent of the Lenders. The Lenders
acknowledge that, pursuant to such activities, Barclays Bank PLC or its
Affiliates may receive information regarding the Borrower, the Guarantors and
their Affiliates (including information that may be subject to confidentiality
obligations in favor of the Borrower or the Guarantors) and acknowledge that
the Administrative Agent shall be under no obligation to provide such
information to them. With respect to the Obligations, Barclays Bank PLC shall
have the same rights and powers under this Agreement as any other Lender and
may exercise the same as though it were not the Administrative Agent, and the
terms "Lender" and "Lenders" include Barclays Bank PLC in its individual
capacity.

         11.09 Successor Administrative Agent. The Administrative Agent may,
and at the request of the Required Lenders shall, resign as Administrative
Agent upon 30 days' notice to the Lenders and the Borrower. If the
Administrative Agent resigns under this Agreement, the Required Lenders shall
appoint from among the Lenders a successor agent for the Lenders, which
appointment shall be subject to the approval of the Borrower, such approval not
to be unreasonably withheld (unless a Default or Event of Default shall have
occurred and be continuing, in which case such approval shall not be required).
If no successor agent is appointed prior to the effective date of the
resignation of the Administrative Agent, the Administrative Agent may appoint,
after consulting with the Lenders and the Borrower, a successor agent from
among the Lenders. Upon the acceptance of its appointment as successor agent
hereunder, such successor agent shall succeed to all the rights, powers and
duties of the retiring Administrative Agent and the term "Administrative Agent"
shall mean such successor agent effective upon its appointment, and the
retiring Administrative Agent's rights, powers and duties as Administrative
Agent shall be terminated, without any other or further act on the part of such
retiring Administrative Agent. After any retiring Administrative Agent's
resignation hereunder as Administrative Agent, the provisions of this ARTICLE
XI and Sections 13.04 and 13.05 shall inure to its benefit as to any actions
taken or omitted to be taken by it while it was Administrative Agent under this
Agreement. If no successor Administrative Agent has accepted the appointment as
Administrative Agent by the date which is 30 days following a retiring
Administrative Agent's notice of resignation, the retiring Administrative
Agent's resignation shall nevertheless thereupon become effective and either
the Borrower or the retiring Administrative Agent may, on behalf of the
Lenders, appoint a successor Administrative Agent, which shall be a commercial
bank organized or licensed under the laws of the United States or of any State
thereof and having a combined capital and surplus of at least U.S.$400,000,000.

                                  ARTICLE XII
                             THE JOINT BOOKRUNNERS
                             ---------------------

         12.01 The Joint Bookrunners. The Borrower hereby confirms the
designation of Barclays Capital, the Investment Banking Division of Barclays
Bank PLC, and Citigroup Global Markets Inc., as arrangers and Joint Bookrunners
for this revolving credit facility. The Joint Bookrunners assume no
responsibility or obligation hereunder for servicing, enforcement or collection
of the Obligations, or any duties as agent for the Lenders. The title "Joint
Bookrunner" or "Book-runner" implies no fiduciary responsibility on the part of
the Joint Bookrunners to the Administrative Agent, or the Lenders and the use
of either such title does not impose on the Joint Bookrunners any duties or
obligations under this Agreement except as may be expressly set forth herein.

         12.02 Liability of Joint Bookrunners. Neither the Joint Bookrunners
nor any of their respective officers, directors, employees, agents,
attorneys-in-fact or Affiliates shall be (a) liable for any action lawfully
taken or omitted to be taken by them or any such Person under or in connection
with this Agreement or any other Transaction Document (except for such Joint
Bookrunner's own gross negligence or willful misconduct), or (b) responsible in
any manner to any Lender for any recital, statement, representation or warranty
made by the Borrower or any officer thereof, contained in this Agreement or in
any other Transaction Document, or in any certificate, report, statement or
other document referred to or provided for in, or received by the Arrangers
under or in connection with, this Agreement or any other Transaction Document
or for the validity, effectiveness, genuineness, enforceability or sufficiency
of this Agreement or any other Transaction Document or for any failure of the
Borrower or any other party to any other Transaction Document to perform its
obligations hereunder or thereunder. Except as otherwise expressly stated
herein, the Joint Bookrunners shall not be under any obligation to any Lender
to ascertain or to inquire as to the observance or performance of any of the
agreements contained in, or conditions of, this Agreement or any other
Transaction Document, or to inspect the properties, books or records of the
Borrower.

         12.03 Joint Bookrunners in their respective Individual Capacities.
Each of Barclays Capital, the Investment Banking Division of Barclays Bank PLC
and its Affiliates, and Citigroup Global Markets Inc. and its Affiliates may
make loans to, accept deposits from and generally engage in any kind of
business with the Borrower or any of its Affiliates as though they were not the
Joint Bookrunners hereunder.

         12.04 Credit Decision. Each Lender expressly acknowledges that neither
the Joint Bookrunners nor any of their respective Affiliates, officers,
directors, employees, agents or attorneys-in-fact have made any representation
or warranty to it, and that no act by the Joint Bookrunners hereafter taken,
including any review of the affairs of the Borrower or the Guarantors, shall be
deemed to constitute any representation or warranty by the Joint Bookrunners to
any Lender. Each Lender acknowledges to the Joint Bookrunners that it has,
independently and without reliance upon the Joint Bookrunners, and based on
such documents and information as it has deemed appropriate, made its own
appraisal of and investigation into the business, prospects, operations,
property, financial and other condition and creditworthiness of the Borrower or
the Guarantors and their Affiliates and made its own decision to enter into
this Agreement. Each Lender also acknowledges that it will, independently and
without reliance upon the Joint Bookrunners, and based on such documents and
information as it shall deem appropriate at the time, continue to make its own
credit analysis, appraisals and decisions in taking or not taking action under
this Agreement and the other Transaction Documents, and to make such
investigations as it deems necessary to inform itself as to the business,
prospects, operations, property, financial and other condition and
creditworthiness of the Borrower or the Guarantors. The Joint Bookrunners shall
not have any duty or responsibility to provide any Lender with any information
concerning the business, prospects, operations, property, financial and other
condition or creditworthiness of the Borrower which may come into the
possession of the Joint Bookrunners or any of their respective officers,
directors, employees, agents, attorneys-in-fact or Affiliates.

                                  ARTICLE XIII
                                 MISCELLANEOUS
                                 -------------

         13.01 Notices.

         (a) Except as otherwise expressly provided herein, all notices,
   requests, demands or other communications to or upon any party hereunder
   shall be in writing (including facsimile transmission) and shall be sent by
   an overnight courier service, transmitted by facsimile or delivered by hand
   to such party: (i) in the case of the Borrower, the Guarantors, the Joint
   Bookrunners or the Administrative Agent, at its address or facsimile number
   set forth on Schedule 1.01(c) or at such other address or facsimile number
   as such party may designate by notice to the other parties hereto and (ii)
   in the case of any Lender, at its address or facsimile number set forth in
   Schedule 1.01(b) or at such other address or facsimile number as such Lender
   may designate by notice to the Borrower, the Joint Bookrunners and the
   Administrative Agent.

         (b) Unless otherwise expressly provided for herein, each such notice,
   request, demand or other communication shall be effective (i) if sent by
   overnight courier service or delivered by hand, upon delivery, (ii) if given
   by facsimile, when transmitted to the facsimile number specified pursuant to
   paragraph (a) above and confirmation of receipt of a legible copy thereof is
   received, or (iii) if given by any other means, when delivered at the
   address specified pursuant to paragraph (a) above; provided, however, that
   notices to the Administrative Agent under ARTICLE II, III, IV or XI shall
   not be effective until received.

         13.02 Amendments and Waivers. No amendment or waiver of any provision
of this Agreement, and no consent to any departure by the Borrower or any
Guarantor from the terms of this Agreement, shall in any event be effective
unless the same shall be in writing, consented to by the Borrower or the
applicable Guarantors, as the case may be, and acknowledged by the
Administrative Agent (which shall be a purely ministerial action), and signed
or consented to by the Required Lenders, and then such amendment, waiver or
consent shall be effective only in the specific instance and for the specific
purpose for which given; provided, however, that no amendment, waiver or
consent shall:

         (a)   (i) except as specifically provided herein, increase or decrease
   the Commitment of any Lender;

               (ii) extend the maturity of any of the Obligations, extend the
         time of payment of interest thereon, or extend the Termination Date;

               (iii) forgive any Obligation, reduce the principal amount of the
         Obligations, reduce the rate of interest thereon, reduce the amount or
         change the method of calculation of any Fee hereunder, or change the
         provisions of Section 3.05(a);

in each case without the consent of the Borrower and each Lender directly
affected thereby;

         (b)   (i) amend, modify or waive any provision of this Section 13.02;

               (ii) change the percentage specified in the definition of
         Required Lenders or the number of Lenders which shall be required for
         the Lenders or any of them to take any action under this Agreement; or

               (iii) amend, modify or waive any provision of Section 4.01; or

               (iv) amend, modify or waive any provision of Section 13.06;

in each case without the consent of the Borrower and all the Lenders;

         (c) amend, modify or waive any provision of ARTICLE XI without the
   written consent of the Administrative Agent; and

         (d) amend, modify or waive any provision of ARTICLE XII without the
   consent of the Joint Bookrunners.

         13.03 No Waiver; Cumulative Remedies. No failure to exercise and no
delay in exercising, on the part of the Administrative Agent or any Lender, any
right, remedy, power or privilege hereunder or under any other Transaction
Document shall operate as a waiver thereof; nor shall any single or partial
exercise of any right, remedy, power or privilege hereunder or thereunder
preclude any other or further exercise thereof or the exercise of any other
right, remedy, power or privilege. The rights and remedies herein provided are
cumulative and not exclusive of any rights or remedies provided by law.

         13.04 Payment of Expenses, Etc. The Borrower agrees to pay on demand

         (a) all reasonable and documented out-of-pocket costs and expenses
   (including reasonable legal fees and disbursements of special Mexican and
   New York counsel to the Administrative Agent), syndication (including
   printing, distribution and bank meetings), travel, telephone and duplication
   expenses and other reasonable and documented costs and out of- pocket
   expenses in connection with the arrangement, documentation, negotiation and
   closing of the Transactions Documents, subject to the maximum amount set
   forth in a letter agreement between the Borrower and the Joint Bookrunners;

         (b) all reasonable and documented out-of-pocket costs and expenses
   incurred by the Administrative Agent in connection with any amendment to,
   waiver of, or consent to any Transaction Document or the transactions
   contemplated hereby, including the reasonable fees and reasonable and
   documented out-of-pocket expenses of special Mexican and New York counsel to
   the Administrative Agent; and

         (c) all reasonable and documented, out-of-pocket costs and expenses
   incurred by the Administrative Agent or any Lender in connection with the
   enforcement of and/or preservation of any rights under this Agreement or any
   other Transaction Document (whether through negotiations, legal proceedings
   or otherwise), including the reasonable fees and reasonable and documented
   out-of-pocket expenses of special Mexican and New York counsel to the
   Administrative Agent and such Lender.

         13.05 Indemnification. The Borrower agrees to indemnify and hold
harmless the Joint Bookrunners, the Administrative Agent and each Lender and
each of their Affiliates and their officers, directors, employees, agents and
advisors (each, an "Indemnified Party") from and against any and all claims,
damages, losses, liabilities and expenses (including reasonable fees and
expenses of counsel and the allocated cost of in-house counsel), but excluding
taxes that may be incurred by or asserted or awarded against any Indemnified
Party, in each case arising out of or in connection with or by reason of
(including in connection with any investigation, litigation or proceeding or
preparation of a defense in connection therewith) (a) the Transaction
Documents, any of the transactions contemplated herein or the actual or
proposed use of the proceeds of the Loans or (b) or any Environmental Action
relating in any way to the Borrower or any of its Subsidiaries, except to the
extent such claim, damage, loss, liability or expense is found in a final,
non-appealable judgment by a court of competent jurisdiction to have resulted
from such Indemnified Party's gross negligence or willful misconduct. In the
case of an investigation, litigation or other proceeding to which the indemnity
in this Section 13.05 applies, such indemnity shall be effective whether or not
such investigation, litigation or proceeding is brought by the Borrower, its
directors, shareholders or creditors or an Indemnified Party or any other
Person or any Indemnified Party is otherwise a party thereto and whether or not
the transactions contemplated hereby are consummated. The Borrower and each
Guarantor also agrees not to assert any claim against the Joint Bookrunners,
the Administrative Agent, any Lender, any of their Affiliates, or any of their
respective directors, officers, employees, attorneys and agents, on any theory
of liability, for special, indirect, consequential or punitive damages arising
out of or otherwise relating to the Transaction Documents, any of the
transactions contemplated herein or the actual or proposed use of the proceeds
of the Transaction Documents. Neither the Joint Bookrunner, the Administrative
Agent, nor any Lender shall be deemed to have any fiduciary relationship with
the Borrower or any Guarantor.

         13.06  Successors and Assigns.

         (a) The provisions of this Agreement shall be binding upon the
   Borrower, the Guarantors, their successors and assigns and shall inure to
   the benefit of the Joint Bookrunners, the Administrative Agent and the
   Lenders and their respective successors and assigns, except that the
   Borrower and the Guarantors may not assign or otherwise transfer any of
   their rights or obligations under this Agreement without the prior written
   consent of all Lenders except pursuant to the terms of this Agreement.

         (b) Any Lender may at any time, and any Lender, if demanded by the
   Borrower pursuant to Section 2.01(d) or Section 3.09 upon at least five
   Business Days' notice to such Lender and the Administrative Agent, shall,
   assign to one or more commercial banks either (i) registered as a Foreign
   Financial Institution and a resident (or having its principal office as a
   resident, if lending through a branch or agency) for tax purposes in a
   jurisdiction that is a party to an income tax treaty to avoid double
   taxation with Mexico on the date of such assignment, qualified to receive
   the benefits of said treaty or (ii) organized and existing under the laws of
   Mexico on the date of such assignment (each an "Assignee") all, or a
   proportionate part of all, of its Commitment and its rights and obligations
   under this Agreement and the Notes, and such Assignee shall assume such
   rights and obligations, pursuant to an Assignment and Assumption Agreement
   executed by such Assignee and such transferor Lender, with (and subject to)
   the subscribed consent of the Borrower and the Administrative Agent (which
   consents shall not be unreasonably withheld or delayed, and if a Default or
   Event of Default has occurred and is continuing, the consent of the Borrower
   shall not be required); provided, however, that if an Assignee is an
   Affiliate of such transferor Lender, which Affiliate is registered as a
   Foreign Financial Institution and meets the tax residence and qualification
   requirements of clause (ii) above and, at the time of such assignment, the
   additional amounts payable with respect to Taxes to such Assignee will not
   exceed such amounts payable to the transferor Lender, no such consent shall
   be required; and provided further that, in the case of an assignment of only
   part of such rights and obligations, the Assignee shall acquire a Total
   Exposure of not less than U.S.$3,000,000 and integral multiples of
   U.S.$1,000,000 in excess thereof. Upon execution and delivery of an
   Assignment and Assumption Agreement and payment by the Assignee to the
   transferor Lender of an amount equal to the purchase price agreed between
   such transferor Lender and such Assignee, such Assignee shall be a Lender
   party to this Agreement and shall have all the rights and obligations of a
   Lender with a Commitment as set forth in such instrument of assumption (in
   addition to any Commitment previously held by it), and the transferor Lender
   shall be released from its obligations hereunder to a corresponding extent
   (except to the extent the same arose prior to the assignment), and no
   further consent or action by any party shall be required. Upon the
   consummation of any assignment pursuant to this paragraph (b), the
   transferor Lender, the Administrative Agent and the Borrower shall make
   appropriate arrangements so that a new Note is issued to the Assignee at the
   expense of the Assignee. In connection with any such assignment (other than
   a transfer by a Lender to one of its Affiliates), the transferor Lender (or
   in the case of Section 3.10, the Borrower), without prejudice to any claims
   the Borrower may have against any Defaulting Lender, shall pay to the
   Administrative Agent an administrative fee for processing such assignment in
   the amount of U.S.$3,500.

         (c) Nothing herein shall prohibit any Lender from pledging or
   assigning any Note to any Federal Reserve Bank of the United States in
   accordance with applicable law and without compliance with the foregoing
   provisions of this Section 13.06; provided, however, that such pledge or
   assignment shall not release such Lender from its obligations hereunder.

         (d) Any Lender may, without any consent of the Borrower, the
   Administrative Agent or any other third party at any time grant to one or
   more banks or other institutions (i) registered as a Foreign Financial
   Institution and (ii) resident (or having its principal office as a resident,
   if lending through a branch or agency) for tax purposes in a jurisdiction
   that is a party to an income tax treaty to avoid double taxation with Mexico
   on the date of such assignment and qualified to receive the benefits of said
   treaty and having (at the time such Lender or financial institution becomes
   a Participant) a withholding tax rate under such treaty applicable to
   payments hereunder no higher than that applicable to payments to such Lender
   (each a "Participant") participating interests in its Commitment or any or
   all of its Loans. In the event of any such grant by a Lender of a
   participating interest to a Participant, whether or not upon notice to the
   Borrower and the Administrative Agent, such Lender shall remain responsible
   for the performance of its obligations hereunder, and the Borrower and the
   Administrative Agent shall continue to deal solely and directly with such
   Lender in connection with such Lender's rights and obligations under this
   Agreement. Any agreement pursuant to which any Lender may grant such a
   participating interest shall provide that such Lender shall retain the sole
   right and responsibility to enforce the obligations of the Borrower
   hereunder, including the right to approve any amendment, modification or
   waiver of any provision of this Agreement; provided, however, that such
   participation agreement may provide that such Lender will not agree to any
   modification, amendment or waiver of this Agreement extending the maturity
   of any Obligation in respect of which the participation was granted, or
   reducing the rate or extending the time for payment of interest thereon or
   reducing the principal thereof, or reducing the amount or basis of
   calculation of any fees to accrue in respect of the participation, without
   the consent of the Participant. The Borrower agrees that each Participant
   shall, to the extent provided in its participation agreement, be entitled to
   the benefits of Sections 3.04, 3.06 and 3.10 with respect to its
   participating interest as if it were a Lender named herein; provided,
   however, that the Borrower shall not be required to pay any greater amounts
   pursuant to such Sections than it would have been required to pay but for
   the sale to such Participant of such Participant's participation interest.
   An assignment or other transfer which is not permitted by paragraph (b) or
   (c) above shall be given effect for purposes of this Agreement only to the
   extent of a participating interest granted in accordance with this paragraph
   (d).

         (e) Any Lender may, in connection with any assignment or participation
   or proposed assignment or participation pursuant to this Section 13.06,
   disclose to the Assignee or Participant or proposed Assignee or Participant,
   any information relating to the Borrower furnished to such Lender by or on
   behalf of the Borrower; provided that, prior to any such disclosure, the
   Assignee or Participant or proposed Assignee or Participant shall agree to
   preserve the confidentiality of any Confidential Information relating to the
   Borrower received by it from such Lender.

         13.07 Right of Set-off. In addition to any rights and remedies of the
Lenders provided by law, each such Lender shall have the right, without prior
notice to the Borrower or the Guarantors, any such notice being expressly
waived by the Borrower and the Guarantors to the extent permitted by applicable
law, upon any amount becoming due and payable by the Borrower or the Guarantors
hereunder (whether at the stated maturity, by acceleration or otherwise) to
set-off and appropriate and apply against such amount any and all deposits
(general or special, time or demand, provisional or final), in any currency,
and any other credits, indebtedness or claims, in any currency, in each case
whether direct or indirect, absolute or contingent, matured or unmatured, at
any time held or owing by such Lender, or any branch or agency thereof to or
for the credit or the account of the Borrower or the Guarantors. Each Lender
agrees promptly to notify the Borrower, or such Guarantor, as the case may be,
and the Administrative Agent after any such set-off and application made by
such Lender, provided that the failure to give such notice shall not affect the
validity of such set-off and application.

         13.08 Confidentiality. Neither the Administrative Agent nor any Lender
shall disclose any Confidential Information to any other Person without the
prior written consent of the Borrower, other than (a) to the Administrative
Agent's, or such Lender's Affiliates and their officers, directors, employees,
agents and advisors and, as contemplated by Section 13.06(e), to actual or
prospective Assignees and Participants, and then only on a confidential basis,
(b) as required by any law, rule or regulation (including as may be required in
connection with an audit by the Administrative Agent's, or such Lender's
independent auditors, and as may be required by any self-regulating
organizations) or as may be required by or necessary in connection with any
judicial process and (c) as requested by any state, federal or foreign
authority or examiner regulating banks or banking.

         13.09 Use of English Language. All certificates, reports, notices and
other documents and communications given or delivered pursuant to this
Agreement shall be in the English language (other than the documents required
to be provided pursuant to Section 4.01(e)(iii), Section 7.01 and Section 7.02
which shall be in the English language or in the Spanish language accompanied
by an English translation or summary). Except in the case of the laws of, or
official communications of, Mexico, the English language version of any such
document shall control the meaning of the matters set forth therein.

         13.10 GOVERNING LAW. THIS AGREEMENT AND THE OTHER TRANSACTION
DOCUMENTS SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAW OF THE
STATE OF NEW YORK.

         13.11 Submission to Jurisdiction

         (a) Each of the parties hereto hereby irrevocably and unconditionally
   submits to the non-exclusive jurisdiction of the United States District
   Court for the Southern District of New York and of any New York State court
   located in the Borough of Manhattan in New York City and any appellate court
   thereof for purposes of any suit, legal action or proceeding arising out of
   or relating to this Agreement, any other Transaction Document or the
   transactions contemplated hereby, and each of the parties hereto hereby
   irrevocably agrees that all claims in respect of such suit, action or
   proceeding may be heard and determined in such federal or New York State
   court and, with respect to the Borrower and the Guarantors, as well as in
   the competent court of their own corporate domicile.

         (b) Each of the parties hereto hereby irrevocably waives, to the
   fullest extent it may effectively do so, any objection that it may now or
   hereafter have to the laying of venue of any such suit, action or proceeding
   in any such federal or New York State court and irrevocably waives, to the
   fullest extent permitted by law, the defense of an inconvenient forum to the
   maintenance of any such suit, action or proceeding.

         (c) Each of the parties hereto irrevocably waives the right to object,
   with respect to such claim, suit, action or proceeding brought in any such
   court, that such court does not have jurisdiction over it.

         (d) Each of the parties hereto agrees, to the fullest extent it may
   effectively do so under applicable law, that a final judgment in any suit,
   action or proceeding of the nature referred to in paragraph (a) above
   brought in any such court shall be conclusive and binding upon such party
   and may be enforced in other jurisdictions by suit on the judgment or in any
   manner provided by law.

         (e) EACH OF THE PARTIES HERETO HEREBY IRREVOCABLY WAIVES ANY AND ALL
   RIGHT TO TRIAL BY JURY IN ANY SUIT, ACTION OR PROCEEDING OR COUNTERCLAIM
   ARISING OUT OF OR RELATING TO ANY OF THE TRANSACTIONS CONTEMPLATED BY THIS
   AGREEMENT OR THE ACTIONS OF ANY ARRANGER, THE ADMINISTRATIVE AGENT OR ANY
   LENDER IN THE NEGOTIATION, ADMINISTRATION, PERFORMANCE OR ENFORCEMENT
   THEREOF.

         13.12 Appointment of Agent for Service of Process.

         (a) The Borrower and each Guarantor hereby irrevocably appoints CT
   Corporation System, with an office on the date hereof at 111 Eighth Avenue,
   13th Floor, New York, New York 10011, as its agent (the "Process Agent") to
   receive on behalf of itself and its property, service of copies of the
   summons and complaint and any other process which may be served in any such
   action or proceeding brought in any New York State or federal court sitting
   in New York City. Such service may be made by delivering a copy of such
   process to the Borrower or any Guarantor, as the case may be, in care of the
   Process Agent at its address specified above, and the Borrower and each
   Guarantor, as the case may be, hereby authorizes and directs the Process
   Agent to accept such service on its behalf. The appointment of the Process
   Agent shall be irrevocable until the appointment of a successor Process
   Agent. The Borrower and each Guarantor, further agrees to promptly appoint a
   successor Process Agent in New York City prior to the termination for any
   reason of the appointment of the initial Process Agent.

         (b) Nothing in Section 13.11 or in this Section 13.12 shall affect the
   right of any party hereto to serve process in any manner permitted by law or
   limit any right that any party hereto may have to enforce in any lawful
   manner a judgment obtained in one jurisdiction in any other jurisdiction.

         13.13 Waiver of Sovereign Immunity. To the extent that the Borrower or
a Guarantor has or hereafter may acquire any immunity from jurisdiction of any
court or from any legal process (whether through service or notice, attachment
prior to judgment, attachment in aid of execution, or otherwise) with respect
to itself or its property, the Borrower or the Guarantor, as the case may be,
hereby irrevocably waives such immunity in respect of its obligations hereunder
to the extent permitted by applicable law. Without limiting the generality of
the foregoing, the Borrower and each Guarantor agrees that the waivers set
forth in this Section 13.13 shall have force and effect to the fullest extent
permitted under the Foreign Sovereign Immunities Act of 1976 of the United
States and are intended to be irrevocable for purposes of such Act.

         13.14 Judgment Currency.

         (a) All payments made under this Agreement and the other Transaction
   Documents shall be made in Dollars unless specified otherwise herein. If for
   the purposes of obtaining judgment in any court it is necessary to convert a
   sum due from the Borrower in one currency ("Currency X") into another
   currency ("Currency Y"), the parties hereto agree to the fullest extent that
   they may legally and effectively do so that the rate of exchange used shall
   be that at which in accordance with normal banking procedures (based on
   quotations from four major dealers in the relevant market) the
   Administrative Agent or each Lender, as the case may be, could purchase
   Currency X with Currency Y at or about 11:00 a.m. (New York City time) on
   the Business Day preceding that on which final judgment is given.

         (b) The Obligations in respect of any sum due to any Lender or the
   Administrative Agent hereunder or under any other Transaction Document
   shall, to the extent permitted by applicable law notwithstanding any
   judgment expressed in a currency other than the applicable Currency X, be
   discharged only to the extent that on the Business Day following receipt by
   such Lender or the Administrative Agent of any sum adjudged to be so due in
   Currency Y such Lender or the Administrative Agent may in accordance with
   normal banking procedures purchase Currency X with Currency Y. If the amount
   of Currency X so purchased is less than the sum originally due to such
   Lender or the Administrative Agent, the Borrower and each of the Guarantors
   agree, to the fullest extent it may legally do so, as a separate obligation
   and notwithstanding any such judgment, to indemnify such Lender or the
   Administrative Agent against such resulting loss.

         13.15 Counterparts. This Agreement may be executed in any number of
counterparts and by the different parties hereto in separate counterparts, each
of which when so executed shall be deemed to be an original and all of which
taken together shall constitute one and the same agreement. Delivery of an
executed counterpart of a signature page to this Agreement by facsimile shall
be effective as delivery of a manually executed counterpart of this Agreement.

         13.16 USA PATRIOT Act. The Lenders, to the extent that they are
subject to the requirements of the USA PATRIOT Act (Title III of Pub. L. 107-56
(signed into law October 26, 2001)) (the "Act"), hereby notify the Borrower
that pursuant to the requirements of the Act, it is required to obtain, verify
and record information that identifies the Borrower, which information includes
the name and address of the Borrower and other information that will allow the
Lenders to identify the Borrower in accordance with the Act.

         13.17 Severability. Any provision of this Agreement which is
prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction,
be ineffective to the extent of such prohibition or unenforceability without
invalidating the remaining provisions hereof or affecting the validity or
enforceability of such provision in any other jurisdiction, and the remaining
portion of such provision and all other remaining provisions hereof will be
construed to render them enforceable to the fullest extent permitted by law.

         13.18 Survival of Agreements and Representations.

         (a) All representations and warranties made herein or in any other
   Transaction Document shall survive the execution and delivery of this
   Agreement and the consummation of the transactions contemplated hereby.

         (b) The covenants and agreements contained in Sections 3.04, 3.05,
   3.06, 3.07, 3.08, 13.04, 13.05, 13.08, 13.09, 13.11, 13.12 and 13.14, and
   the obligations of the Lenders under Section 11.07, shall survive the
   termination of the Commitments and the payment of all Obligations and, in
   the case of any Lender that may assign any interest in its Commitment or
   obligations hereunder, with respect to matters occurring before such
   assignment, shall survive the making of such assignment to the extent any
   claim arising thereunder relates to any period prior to such assignment,
   notwithstanding that such assigning Lender may cease to be a "Lender"
   hereunder.



THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31, 2005.



CEMEX, S.A. DE C.V.,
as Borrower

By       /s/ Hector Vela
         ---------------------------------------------
         Name:    Hector Vela
         Title:   Attorney-in-fact






THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.



CEMEX MEXICO, S.A. DE C.V.,
as Guarantor

By       /s/ Hector Vela
         ---------------------------------------------
         Name:    Hector Vela
         Title:   Attorney-in-fact








THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.



EMPRESAS TOLTECA DE MEXICO, S.A. DE C.V.,
as Guarantor

By       /s/ Hector Vela
         ---------------------------------------------
         Name:    Hector Vela
         Title:   Attorney-in-fact







THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.



BARCLAYS CAPITAL, THE INVESTMENT BANKING DIVISION OF
BARCLAYS BANK PLC,
as Joint Lead Arranger and Joint Bookrunner

By       /s/ Vidal H. Ramirez
         ---------------------------------------------
         Name:    Vidal H. Ramirez
         Title:   Director








THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.



CITIGROUP GLOBAL MARKETS INC., as Documentation
Agent, Joint Lead Arranger and Joint Bookrunner

By       /s/ Carlos A. Corona
         ---------------------------------------------
         Name:    Carlos A. Corona
         Title:   Director






THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.



CITIBANK, N.A. NASSAU, BAHAMAS BRANCH
as a Lender

By       /s/ Leslie Munroe
         ---------------------------------------------
         Name:    Leslie Munroe
         Title:   Attorney-in-fact








THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.



BARCLAYS BANK PLC, NEW YORK BRANCH,
as Administrative Agent and Lender

By       /s/ Vidal H. Ramirez
         ---------------------------------------------
         Name:    Vidal H. Ramirez
         Title:   Director







THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.



BANCO SANTANDER CENTRAL HISPANO, S.A., NEW YORK
BRANCH,
as a Lender

By       /s/ Ruben Perez-Romo
         ---------------------------------------------
         Name:    Ruben Perez-Romo
         Title:   Vice President
                  Global Corporate Banking




By       /s/ Dom J. Rodriguez
         ---------------------------------------------
         Name:    Dom J. Rodriguez
         Title:   Vice President - Relationship
                  Manager
                  Global Corporate Banking





THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.



THE BANK OF NOVA SCOTIA
as a Lender

By       /s/ Tim Lorimer
         ---------------------------------------------
         Name:    Tim Lorimer
         Title:   Vice President, International
                  Corporate and Commercial Banking






THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.



BANCO BILBAO VIZCAYA ARGENTARIA, S.A. - NEW YORK
BRANCH
as a Lender

By       /s/ Jay Levit
         ---------------------------------------------
         Name:    Jay Levit
         Title:   Vice President




By       /s/ John Martini
         ---------------------------------------------
         Name:    John Martini
         Title:   Vice President







THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.


BNP PARIBAS PANAMA BRANCH,
as a Lender

By       /s/ Raul Ardito-Barletta
         ---------------------------------------------
         Name:    Raul Ardito-Barletta
         Title:   Executive Vice President


BNP PARIBAS PANAMA BRANCH,
as a Lender

By       /s/ Nair Gonzalez
         ---------------------------------------------
         Name:    Nair Gonzalez
         Title:   Senior Vice President






THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.



CALYON NEW YORK BRANCH,
as a lender

By       /s/ Pierre Debray
         ---------------------------------------------
         Name:    Pierre Debray
         Title:   Managing Director




By       /s/ David Rigaud
         ---------------------------------------------
         Name:    David Rigaud
         Title:   Director







THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.



ING BANK N.V., acting through its Curacao branch,
as a lender

By       /s/ Zulia, A.C.
         ---------------------------------------------
         Name:    Zulia, A.C.
         Title:   Senior Management Transaction
                  Processing




By       /s/ Felipa-Ventura, A.A.
         ---------------------------------------------
         Name:    Felipa-Ventura, A.A.
         Title:   Manager Credit Administration






THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.



WACHOVIA BANK, NATIONAL ASSOCIATION
as a lender

By       /s/ Kathleen H. Reedy
         ---------------------------------------------
         Name:    Kathleen H. Reedy
         Title:   Managing Director






THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.



FORTIS BANK S.A./N.V., Connecticut Branch
as a lender

By       /s/ Douglas Riahi
         ---------------------------------------------
         Name:    Douglas Riahi
         Title:   Managing Director




By       /s/ Steven Silverstein
         ---------------------------------------------
         Name:    Steven Silverstein
         Title:   Vice President






THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.



HSBC BANK PLC SURCUSAL EN ESPANA,
as a lender

By       /s/ Illegible
         ---------------------------------------------
         Name:  Illegible
         Title: Illegible






THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.



THE ROYAL BANK OF SCOTLAND PLC,
as a lender

By       /s/ Inaki Basterreche
         ---------------------------------------------
         Name:    Inaki Basterreche
         Title:   Senior Director


By       /s/ Antonio Casteleiro
         ---------------------------------------------
         Name:    Antonio Casteleiro
         Title:   Director






THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.


SOCIETE GENERALE,
as a lender


By       /s/ Alejandro Garcia
         ---------------------------------------------
         Name:    Alejandro Garcia
         Title:   Vice President






THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.



BANK OF AMERICA, N.A.,
as a lender

By       /s/ Mauricio Rebolledo
         ---------------------------------------------
         Name:    Mauricio Rebolledo
         Title:   Managing Director






THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.



The BANK OF TOKYO-MITSUBISHI, LTD.,
as a lender

By       /s/ Pamela D. Price
         ---------------------------------------------
         Name:    Pamela D. Price
         Title:   Vice President & Manager







THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.



JPMORGAN CHASE BANK, N.A.
as a lender

By       /s/ Linda M. Meyer
         ---------------------------------------------
         Name:    Linda M. Meyer
         Title:   Vice President








THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.


SANPAOLO IMI S.P.A.
as a lender


By       /s/ Joshua Koenig
         ---------------------------------------------
         Name:    Joshua Koenig
         Title:   Vice President




By       /s/ Renato Carducci
         ---------------------------------------------
         Name:    Renato Carducci
         Title:   General Manager






THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.



BANCA MONTE DEI PASCHI DI SIENA S.P.A.
as a lender

By       /s/ Romeo C. Cella
         ---------------------------------------------
         Name:    Romeo C. Cella
         Title:   Senior Vice President & General
                  Manager




By       /s/ Brian R. Landy
         ---------------------------------------------
         Name:    Brian R. Landy
         Title:   Vice President






THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.



CAJA MADRID MIAMI AGENCY,
as a lender

By       /s/ Javier Guzman
         ---------------------------------------------
         Name:    Javier Guzman
         Title:   Deputy General Manager




By       /s/ Gema Gamez
         ---------------------------------------------
         Name:    Gema Gamez
         Title:   Head of Capital Markets






THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.



COMERICA BANK,
as a lender

By       /s/ Juan Carlos Sanchez
         ---------------------------------------------
         Name:    Juan Carlos Sanchez
         Title:   Vice President






THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.



KBC BANK N.V. NEW YORK BRANCH,
as a lender

By       /s/ Stefano Snozzi
         ---------------------------------------------
         Name:    Stefano Snozzi
         Title:   First Vice President




By       /s/ Robert Snauffer
         ---------------------------------------------
         Name:    Robert Snauffer
         Title:   First Vice President






THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.



MORGAN STANLEY BANK
as a lender

By       /s/ Daniel Twenge
         ---------------------------------------------
         Name:    Daniel Twenge
         Title:   Vice President






THIS PAGE IS A SIGNATURE PAGE TO THE CREDIT AGREEMENT, DATED AS OF MAY 31,
2005.



BAYERISCHE LANDESBANK
as a lender

By       /s/ Illegible
         ---------------------------------------------
         Name:   Illegible
         Title:  Illegible




By       /s/ Donna M. Quilty
         ---------------------------------------------
         Name:    Donna M. Quilty
         Title:   Vice President






                                                                      EXHIBIT G
                                                            TO CREDIT AGREEMENT


                             Mandatory Cost Formula

1.   The Mandatory Cost is an addition to the interest rate to compensate
Lenders for the cost of compliance with (a) the requirements of the Bank of
England and/or the Financial Services Authority (or, in either case, any other
authority which replaces all or any of its functions) or (b) the requirements of
the European Central Bank.

2.   For the purposes of this Exhibit G:

"Additional Cost Rate" has the meaning provided in paragraph 3 below;

"Eligible Liabilities" has the meaning provided from time to time under
or pursuant to the Bank of England Act 1998 or (as may be appropriate) by the
Bank of England;

"Fees Rules" means the rules on periodic fees contained in the FSA
Supervision Manual or such other law or regulation as may be in force from time
to time in respect of the payment of fees for the acceptance of deposits;

"Fee Tariffs" means the fee tariffs specified in the Fees Rules under
the activity group A.1 Deposit acceptors (ignoring any minimum fee or zero rated
fee required pursuant to the Fees Rules but taking into account any applicable
discount rate);

"Special Deposits" has the meaning given to it from time to time under
or pursuant to the Bank of England Act 1998 or (as may be appropriate) by the
Bank of England; and

"Tariff Base" has the meaning given to it in, and will be calculated in
accordance with, the Fees Rules.

3.   On the first day of each Interest Period (or as soon as possible
thereafter) the Administrative Agent shall calculate, as a percentage rate, a
rate (the "Additional Cost Rate") for each Lender, in accordance with the
paragraphs set out below. The Mandatory Cost will be calculated by the
Administrative Agent as a weighted average of the Lenders' Additional Cost Rates
(weighted in proportion to the percentage participation of each Lender in the
relevant Loan) and will be expressed as a percentage rate per annum.

4.   The Additional Cost Rate for any Lender lending from a Lending
Office in a Participating Member State will be the percentage notified by that
Lender to the Administrative Agent. This percentage will be certified by that
Lender in its notice to the Administrative Agent to be its reasonable
determination of the cost (expressed as a percentage of that Lender's
participation in all Loans made from that Lending Office) of complying with the
minimum reserve requirements of the European Central Bank in respect of loans
made from that Lending Office.

5.   The Additional Cost Rate for any Lender lending from a Lending
Office in the United Kingdom will be calculated by the Administrative Agent as
follows:

in relation to a Loan denominated in Sterling:

                   AB+C(B-D)+E x 0.01
                   ------------------   percent per annum
                      100 - (A+C)


in relation to a Loan in any currency other than Sterling:

                    E x 0.01
                   -----------   percent per annum
                      300

     Where:

         A        is the percentage of Eligible Liabilities (assuming these to
                  be in excess of any stated minimum) which that Lender is from
                  time to time required to maintain as an interest free cash
                  ratio deposit with the Bank of England to comply with cash
                  ratio requirements.

         B        is the percentage rate of interest (excluding the Applicable
                  Margin and the Mandatory Cost and, if the Loan is an Unpaid
                  Sum, the additional rate of interest specified in paragraph
                  (a) of Section 2.10 (Default Interest)) payable for the
                  relevant Interest Period on the Loan.

         C        is the percentage (if any) of Eligible Liabilities which that
                  Lender is required from time to time to maintain as interest
                  bearing Special Deposits with the Bank of England.

         D        is the percentage rate per annum payable by the Bank of
                  England to the Administrative Agent on interest bearing
                  Special Deposits.

         E        is designed to compensate Lenders for amounts payable under
                  the Fees Rules and is calculated by the Administrative Agent
                  as being the average of the most recent rates of charge
                  supplied by the Reference Banks to the Administrative Agent
                  pursuant to paragraph 7 below and expressed in pounds per
                  (pound)1,000,000.

6.   In application of the above formula, A, B, C and D will be included in the
formula as percentages (i.e. 5 per cent. will be included in the formula as 5
and not as 0.05). A negative result obtained by subtracting D from B shall be
taken as zero. The resulting figures shall be rounded to four decimal places.

7.   If requested by the Administrative Agent, each Reference Bank shall, as
soon as practicable after publication by the Financial Services Authority,
supply to the Administrative Agent, the rate of charge payable by that
Reference Bank to the Financial Services Authority pursuant to the Fees Rules
in respect of the relevant financial year of the Financial Services Authority
(calculated for this purpose by that Reference Bank as being the average of the
Fee Tariffs applicable to that Reference Bank for that financial year) and
expressed in pounds per Sterling 1,000,000 of the Tariff Base of that Reference
Bank.

8.   Each Lender shall supply any information required by the Administrative
Agent for the purpose of calculating its Additional Cost Rate. In particular,
but without limitation, each Lender shall supply the following information on
or prior to the date on which it becomes a Lender:

the jurisdiction of its Lending Office; and

any other information that the Administrative Agent may reasonably require for
such purpose.

         Each Lender shall promptly notify the Administrative Agent of any
         change to the information provided by it pursuant to this paragraph.

9.    The percentages of each Lender for the purpose of A and C above and the
rates of charge of each Reference Bank for the purpose of E above shall be
determined by the Administrative Agent based upon the information supplied to
it pursuant to paragraphs 7 and 8 above and on the assumption that, unless a
Lender notifies the Administrative Agent to the contrary, each Lender's
obligations in relation to cash ratio deposits and Special Deposits are the
same as those of a typical Lender from its jurisdiction of incorporation with a
Lending Office in the same jurisdiction as its Lending Office.

10.    The Administrative Agent shall have no liability to any person if such
determination results in an Additional Cost Rate which over or under
compensates any Lender and shall be entitled to assume that the information
provided by any Lender or Reference Bank pursuant to paragraphs 3, 7 and 8
above is true and correct in all respects.

11.    The Administrative Agent shall distribute the additional amounts received
as a result of the Mandatory Cost to the Lenders on the basis of the Additional
Cost Rate for each Lender based on the information provided by each Lender and
each Reference Bank pursuant to paragraphs 3, 7 and 8 above.

12.    Any determination by the Administrative Agent pursuant to this Exhibit G
in relation to a formula, the Mandatory Cost, an Additional Cost Rate or any
amount payable to a Lender shall, in the absence of manifest error, be
conclusive and binding on all Parties.

13.    The Administrative Agent may from time to time, after consultation with
the Borrower and the Lenders, determine and notify to all parties to the
Agreement any amendments which are required to be made to this Exhibit G in
order to comply with any change in law, regulation or any requirements from
time to time imposed by the Bank of England, the Financial Services Authority
or the European Central Bank (or, in any case, any other authority which
replaces all or any of its functions) and any such determination shall, in the
absence of manifest error, be conclusive and binding on all parties to the
Agreement.