Document:

EX-10.4

EXHIBIT 10.4

FORM OF REVOLVING NOTE

$_                                                                                          
                                                 , 200     

FOR VALUE RECEIVED, the undersigned, U-STORE-IT, L.P., a limited partnership formed under the
laws of the State of Delaware (the “Borrower”), hereby promises to pay to the order of
_                                     (the “Lender”), in care of Wachovia Bank, National
Association, as Agent (the “Agent”) at Wachovia Bank, National Association, One Wachovia Center,
301 South College Street, Charlotte, North Carolina 28288, or at such other address as may be
specified in writing by the Agent to the Borrower, the principal sum of
_                               AND _    /100 DOLLARS
($                            ) (or such lesser amount as shall equal the aggregate unpaid
principal amount of Revolving Loans made by the Lender to the Borrower under the Credit Agreement
(as herein defined)), on the dates and in the principal amounts provided in the Credit Agreement,
and to pay interest on the unpaid principal amount owing hereunder, at the rates and on the dates
provided in the Credit Agreement.

The date and amount of each Revolving Loan made by the Lender to the Borrower, and each
payment made on account of the principal thereof, shall be recorded by the Lender on its books and,
prior to any transfer of this Note, endorsed by the Lender on the schedule attached hereto or any
continuation thereof, provided that the failure of the Lender to make any such recordation or
endorsement shall not affect the obligations of the Borrower to make a payment when due of any
amount owing under the Credit Agreement or hereunder.

This Note is one of the Revolving Notes referred to in the Credit Agreement dated as of
November 21, 2006 (as amended, restated, supplemented or otherwise modified from time to time, the
“Credit Agreement”), by and among the Borrower, U-Store-It Trust, the financial institutions party
thereto and their assignees under Section 13.5. thereof (the “Lenders”), the Agent, and the other
parties thereto. Capitalized terms used herein, and not otherwise defined herein, have their
respective meanings given them in the Credit Agreement.

The Credit Agreement provides for the acceleration of the maturity of this Note upon the
occurrence of certain events and for prepayments of Loans upon the terms and conditions specified
therein.

Except as permitted by Section 13.5. of the Credit Agreement, this Note may not be assigned by
the Lender to any Person.

1

THIS NOTE SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF
NORTH CAROLINA APPLICABLE TO CONTRACTS EXECUTED, AND TO BE FULLY PERFORMED, IN SUCH STATE.

The Borrower hereby waives presentment for payment, demand, notice of demand, notice of
non-payment, protest, notice of protest and all other similar notices.

Time is of the essence for this Note.

IN WITNESS WHEREOF, the undersigned has executed and delivered this Revolving Note under seal
as of the date first written above.

U-STORE-IT, L.P.

By: U-Store-It Trust, its sole general partner

By:
                                                                                          

Name:
                                                                                      

Title:
                                                                                      

2

SCHEDULE OF REVOLVING LOANS

This Note evidences Revolving Loans made under the within-described Credit Agreement to the
Borrower, on the dates and in the principal amounts set forth below, subject to the payments and
prepayments of principal set forth below:

	 	 	 	 	 	 	 	 	 
	Date of Loan

	 	Principal Amount of

Loan
	 	Amount Paid or

Prepaid
	 	Unpaid Principal

Amount
	 	

Notation Made By
	 
	 	 	 	 	 	 	 	 

3EX-10.5

EXHIBIT 10.5

FORM OF SWINGLINE NOTE

$20,000,000                                                                                         
                                November 21, 2006

FOR VALUE RECEIVED, the undersigned, U-STORE-IT, L.P., a limited partnership formed under the
laws of the State of Delaware (the “Borrower”), hereby promises to pay to the order of WACHOVIA
BANK, NATIONAL ASSOCIATION (the “Swingline Lender”) at its address at One Wachovia Center, 301
South College Street, Charlotte, North Carolina 28288, or at such other address as may be
specified in writing by the Swingline Lender to the Borrower, the principal sum of TWENTY MILLION
AND NO/100 DOLLARS ($20,000,000) (or such lesser amount as shall equal the aggregate unpaid
principal amount of Swingline Loans made by the Swingline Lender to the Borrower under the Credit
Agreement), on the dates and in the principal amounts provided in the Credit Agreement, and to pay
interest on the unpaid principal amount owing hereunder, at the rates and on the dates provided in
the Credit Agreement.

The date and amount of each Swingline Loan, and each payment made on account of the principal
thereof, shall be recorded by the Swingline Lender on its books and, prior to any transfer of this
Note, endorsed by the Swingline Lender on the schedule attached hereto or any continuation thereof,
provided that the failure of the Swingline Lender to make any such recordation or endorsement shall
not affect the obligations of the Borrower to make a payment when due of any amount owing under the
Credit Agreement or hereunder.

This Note is the Swingline Note referred to in the Credit Agreement dated as of November 21,
2006 (as amended, restated, supplemented or otherwise modified from time to time, the “Credit
Agreement”), by and among the Borrower, U-Store-It Trust, the financial institutions party thereto
and their assignees under Section 13.5. thereof (the “Lenders”), Wachovia Bank, National
Association, as Agent, and the other parties thereto, and evidences Swingline Loans made to the
Borrower thereunder. Terms used but not otherwise defined in this Note have the respective
meanings assigned to them in the Credit Agreement.

The Credit Agreement provides for the acceleration of the maturity of this Note upon the
occurrence of certain events and for prepayments of Swingline Loans upon the terms and conditions
specified therein.

Except as permitted by Section 13.5. of the Credit Agreement, this Note may not be assigned by
the Swingline Lender to any Person.

THIS NOTE SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF
NORTH CAROLINA APPLICABLE TO CONTRACTS EXECUTED, AND TO BE FULLY PERFORMED, IN SUCH STATE.

The Borrower hereby waives presentment for payment, demand, notice of demand, notice of
non-payment, protest, notice of protest and all other similar notices.

Time is of the essence for this Note.

IN WITNESS WHEREOF, the undersigned has executed and delivered this Swingline Note under seal
as of the date first written above.

U-STORE-IT, L.P.

By: U-Store-It Trust, its sole general partner

By:                                                        

Name:                                                

Title:                                                  

1

SCHEDULE OF SWINGLINE LOANS

This Note evidences Swingline Loans made under the within-described Credit Agreement to the
Borrower, on the dates and in the principal amounts set forth below, subject to the payments and
prepayments of principal set forth below:

	 	 	 	 	 	 	 	 	 
	Date of Loan

	 	Principal Amount of

Loan
	 	Amount Paid or

Prepaid
	 	Unpaid Principal

Amount
	 	

Notation Made By
	 
	 	 	 	 	 	 	 	 

2EX-4.1

Kansas City Southern de México, S.A. de C.V.,

as Issuer

Grupo Transportación Ferroviaria Mexicana, S.A. de C.V.,

as Guarantor

and

The Bank of New York,

as Trustee

and

Deutsche Bank Luxembourg S.A.,

as Paying Agent

Second Supplemental Indenture

Dated as of November 21, 2006

101/4% Senior Notes due 2007

1

SECOND SUPPLEMENTAL INDENTURE, dated as of November 21, 2006 (the “Supplemental
Indenture”), among KANSAS CITY SOUTHERN DE MéXICO, S.A. de C.V. (formerly known as TFM, S.A. de
C.V.), a corporation (sociedad anónima de capital variable) organized under the laws of Mexico (the
“Company”), GRUPO KCSM, S.A. de C.V. (formerly known as Grupo Transportación Ferroviaria
Mexicana, S.A. de C.V.), a corporation (sociedad anónima de capital variable) organized under the
laws of Mexico, as Guarantor (the “Guarantor”), THE BANK OF NEW YORK, a New York banking
corporation, as Trustee (the “Trustee”), and DEUTSCHE BANK LUXEMBOURG S.A. (formerly
Bankers Trust Luxembourg S.A.), as Paying Agent (the “Paying Agent”). All capitalized
terms used herein but not defined shall have the meaning set forth in the Indenture (as defined
below), unless otherwise indicated.

WHEREAS, the Company, the Guarantor, the Trustee, and the Paying Agent are parties to that
certain Indenture, dated as of June 16, 1997 (the “Indenture”), as supplemented by the
First Supplemental Indenture, dated as of May 21, 2002, among the Company, the Guarantor, the
Trustee, and the Paying Agent, pursuant to which the Company issued its 101/4% Senior Notes due 2007
(the “Notes”);

WHEREAS, pursuant to section 9.02 of the Indenture, the Trustee, with the consent of Holders
of a majority in principal amount of the Notes outstanding, may enter into supplemental indentures
for the purpose of amending and deleting certain provisions of the Indenture;

WHEREAS, the Company, the Guarantor, the Trustee and the Paying Agent desire to amend the
Indenture, to delete and amend certain provisions contained therein and in the Notes;

WHEREAS, pursuant to an Offer to Purchase and Related Solicitation of Consents dated October
23, 2006 (the “Offer to Purchase”), the Company offered to purchase all outstanding Notes
and solicited consents to the amendments to the Indenture and the Notes described herein (the
“Amendments”);

WHEREAS, Holders of at least a majority in principal amount of the Notes outstanding have
consented to the Amendments by tendering and not withdrawing their Notes and by delivering the
related consents pursuant to the terms of the Offer to Purchase;

WHEREAS, by entering into this Supplemental Indenture, the Company, the Guarantor, the Trustee
and the Paying Agent have consented to amend the Indenture and the Notes in accordance with the
Amendments;

NOW, THEREFORE, in consideration of the foregoing and for other good and valuable
consideration, the receipt of which is hereby acknowledged by the Company, the Guarantor, the
Trustee, and the Paying Agent, the Company, the Guarantor, the Trustee and the Paying Agent hereby
agree for the benefit of the Company and the equal and ratable benefit of all the Holders of the
Notes as follows:

ARTICLE ONE

AMENDMENTS

SECTION 1.01. Amendments to the Indenture. Effective on the Optional Early Settlement Date
(as defined in the Offer to Purchase), the Indenture is amended as set forth herein.

(a) Section 1.01 of the Indenture is hereby amended by deleting in their entirety the
following definitions:

“Adjusted Consolidated Net Assets”

“Adjusted Consolidated Net Income”

“Asset Sale”

“Average Life”

“Capital Contribution Agreement”

“Change of Control”

“Consolidated EBITDA”

“Consolidated Interest Expense”

“Excess Proceeds”

“Guaranteed Indebtedness”

“Interest Coverage Ratio”

“Management Services Agreements”

“Net Cash Proceeds”

“Offer to Purchase”

“Permitted Investment”

“Permitted Liens”

“Public Equity Offering”

“Released Indebtedness”

“Restricted Payments”

“Registration”

“Temporary Cash Investment”

“Tex-Mex Railway”

“Transaction Date”

(b) Each of the following sections of the Indenture is hereby amended by deleting it in its
entirety and replacing it in lieu thereof with “[Intentionally Deleted.]”:

	 	 	 
	Section 4.03

Section 4.04

	 	Limitation on Indebtedness.

Limitation on Restricted Payments.

	 	 	 	Section 4.05 Limitation on Dividends and Other Payment Restrictions
Affecting Restricted Subsidiaries.

	 	 	 	Section 4.06 Limitation on the Issuance and Sale of Capital Stock of
Restricted Subsidiaries.

	 	 	 	Section 4.07 Limitation on the Issuances of Guarantees by Restricted
Subsidiaries.

	 	 	 	Section 4.08 Limitation on Transactions with Stockholders and
Affiliates.

	 	 	 
	Section 4.09

Section 4.10

Section 4.11

	 	Limitation on Liens.

Limitation on Sale-Leaseback Transactions.

Limitation on Asset Sales.

	 	 	 	Section 4.12 Repurchase of Securities upon a Change of Control.

	 	 	 
	Section 4.13

Section 4.14

Section 4.15

Section 4.18

Section 4.19

	 	Existence.

Payment of Taxes and Other Claims.

Maintenance of Properties and Insurance.

Commission Reports and Reports to Holders.

Waiver of Stay, Extension or Usury Laws.

(c) Section 5.01 of the Indenture is hereby amended by deleting it in its entirety and
replacing it with the following:

“Neither the Company nor the Guarantor will consolidate with, merge with or into, or sell,
convey, transfer, lease or otherwise dispose of all or substantially all of its property and assets
(as an entirety or substantially an entirety in one transaction or a series of related
transactions) to any Person or permit any Person to merge with or into the Company or the Guarantor
(other than a merger, consolidation, sale, transfer or lease solely between the Guarantor and the
Company) unless: (i) the Company or the Guarantor shall be the continuing Person, or the Person
(if other than the Company or the Guarantor) formed by such consolidation or into which the Company
or the Guarantor is merged or that acquired or leased such property and assets of the Company or
the Guarantor shall be a corporation organized and validly existing under the laws of Mexico, the
United States of America or any jurisdiction of either such country and shall expressly assume, by
a supplemental indenture, executed and delivered to the Trustee, all of the obligations of the
Company or the Guarantor, as the case may be, on all of the Securities or the Securities
Guarantees, as the case may be, and under this Indenture; (ii) immediately after giving effect to
such transaction, no Default or Event of Default shall have occurred and be continuing; and
(iii) the Company delivers to the Trustee an Opinion of Counsel stating that such consolidation,
merger or transfer and such supplemental indenture complies with this provision and that all
conditions precedent provided for herein relating to such transaction have been complied with.”

(d) Section 6.01(c) of the Indenture is hereby amended by deleting it in its entirety and
replacing it with the following:

“the Company or the Guarantor, as the case may be, defaults in the performance of or breaches
the provisions of Article Five;”

(e) Section 9.03 of the Indenture is hereby amended by deleting it in its entirety and
replacing it with the following:

“Until an amendment or waiver becomes effective, a consent to it by a Holder is a continuing
consent by the Holder and every subsequent Holder of a Security or portion of a Security that
evidences the same debt as the Security of the consenting Holder, even if notation of the consent
is not made on any Security. An amendment, supplement or waiver shall become effective on receipt
by the Trustee of written consents from the Holders of the requisite percentage in principal amount
of the outstanding Securities.

The Company may, but shall not be obligated to, fix a record date for the purpose of
determining the Holders entitled to consent to any amendment, supplement or waiver. If a record
date is fixed, then, notwithstanding the last sentence of the immediately preceding paragraph,
those persons who were Holders at such record date (or their duly designated proxies) and only
those persons shall be entitled to consent to such amendment, supplement or waiver or to revoke any
consent previously given, whether or not such persons continue to be Holders after such record
date. No such consent shall be valid or effective for more than 90 days after such record date.

After an amendment, supplement or waiver becomes effective, it shall bind every Holder unless
it is of the type described in any of clauses (i) through (vi) of Section 9.02. In case of an
amendment or waiver of the type described in clauses (i) through (vi) of Section 9.02, the
amendment or waiver shall bind each Holder who has consented to it and every subsequent Holder of a
Security that evidences the same indebtedness as the Security of the consenting Holder.”

(f) Section 13.07 of the Indenture is hereby amended by deleting it in its entirety and
replacing it with the following:

“If an Interest Payment Date, Redemption Date, Stated Maturity or date of maturity of any
Security shall not be a Business Day, then payment of principal of premium, if any, or interest
on such Security, as the case may be, need not be made on such date, but may be made on the next
succeeding Business Day with the same force and effect as if made on the Interest Payment Date,
or Redemption Date, or at the Stated Maturity or date of maturity of such Security; provided
that no interest shall accrue for the period from and after such Interest Payment Date,
Redemption Date, Stated Maturity or date of maturity, as the case may be.”

ARTICLE TWO

MISCELLANEOUS

SECTION 2.01. Relation to Existing Indenture. This Supplemental Indenture constitutes an
integral part of the Indenture in respect of the Notes but shall not modify, and or otherwise
affect the Indenture insofar as it relates to any other series of notes or affect in any manner the
terms or conditions of the notes of any other series.

SECTION 2.02. Guaranty. The Guarantor agrees that the Guarantee shall remain in full force
and effect notwithstanding any failure to endorse on each Note a notation of such Guarantee.

SECTION 2.03. Construction. For all purposes of this Supplemental Indenture, except as
otherwise herein expressly provided or unless the context otherwise requires: (i) the terms and
expressions used herein shall have the same meanings as corresponding terms and expressions used in
the Indenture; and (ii) the words “herein,” “hereof” and “hereby” and other words of similar import
used in this Supplemental Indenture refer to this Supplemental Indenture as a whole and not to any
particular Section hereof.

SECTION 2.04. Trustee Acceptance. The Trustee accepts the amendment of the Indenture
effected by this Supplemental Indenture, as hereby amended, but only upon the terms and conditions
set forth in the Indenture, as hereby amended, including the terms and provisions defining and
limiting the liabilities and responsibilities of the Indenture Trustee in the performance of its
duties and obligations under the Indenture, as hereby amended. Without limiting the generality of
the foregoing; the Trustee has no responsibility for the correctness of the recitals of fact herein
contained which shall be taken as the statements of the Company, and makes no representations as to
the validity or sufficiency of this Supplemental Indenture.

SECTION 2.05. Indenture Ratified. Except as expressly amended hereby, the Indenture is in
all respects ratified and confirmed and all the terms, conditions and provisions thereof shall
remain in full force and effect.

SECTION 2.06. Parties Bound. This Supplemental Indenture shall form a part of the
Indenture for all purposes, and every holder of the Notes heretofore or hereafter authenticated and
delivered shall be bound hereby. Upon the execution and effectiveness of this Supplemental
Indenture, the Indenture and the Notes theretofore issued shall be deemed to be modified and
amended in accordance with this Supplemental Indenture and the respective rights, limitation of
rights, obligations, duties and immunities under the Indenture of the Company, the Guarantor, the
Trustee, and the Paying Agent and the Holders of the Notes shall thereafter be determined,
exercised and enforced thereunder subject in all respects to such modifications and amendments, and
all the terms and conditions of this Supplemental Indenture shall be and be deemed to be part of
the terns and conditions of the Indenture and the Notes theretofore issued for any and all
purposes.

SECTION 2.07. Successors and Assignees. This Supplemental Indenture shall be binding upon
and inure to the benefit of the parties hereto and their respective successors and assigns.

SECTION 2.08. Counterparts. This Supplemental Indenture may be executed in any number of
counterparts (including facsimile copies), each of which when so executed shall be deemed to be an
original, and all of such counterparts shall together constitute one and the same instrument.
Delivery of an executed counterpart of a signature page by telecopier shall be as effective as
delivery of a manually executed counterparts thereof.

SECTION 2.09. Severability. In case any provision in this Supplemental Indenture shall be
invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining
provisions shall not in any way be affected or impaired thereby.

SECTION 2.10. Headings. The headings of the Articles and Sections of this Supplemental
Indenture have been inserted for convenience of reference only and are not to be considered part of
this Supplemental Indenture and shall in no way modify or restrict any of the terms or provisions
hereof.

SECTION 2.11. Governing Law; Submission to Jurisdiction; Agent for Service. The Notes and
this Indenture will be governed by the laws of the State of New York. Each of the parties hereto
hereby submits to the jurisdiction of the U.S. federal and New York state courts located in the
Borough of Manhattan, City and State of New York for purposes of all legal actions and proceedings
instituted in connection with the Notes and this Indenture, and the Company and the Guarantor
hereby waive any objection which they may now have or hereafter have to the laying of venue of any
such action or proceeding and any right to which they may be entitled on account of place of
residence or domicile. The Company and the Guarantor have appointed CT Corporation System, 111
Eighth Avenue, New York, New York 10011, as the Company’s and the Guarantor’s authorized agent upon
which process may be served in any such action.

SECTION 2.12. Currency Indemnity. U.S. dollars are the sole currency of account and
payment for all sums payable by the Company or the Guarantor under or in connection with the Notes,
including damages. Any amount received or recovered in a currency other than U.S. dollars (whether
as a result of, or of the enforcement of, a judgment or order of a court of any jurisdiction, in
the winding-up or dissolution of the Company or the Guarantor or otherwise) by any Holder in
respect of any sum expressed to be due to it from the Company or the Guarantor shall only
constitute a discharge to the Company or the Guarantor to the extent of the dollar amount which the
recipient is able to purchase with the amount so received or recovered in that other currency on
the date of that receipt or recovery (or, if it is not practicable to make that purchase on that
date, on the first date on which it is practicable to do so). If that dollar amount is less than
the dollar amount expressed to be due to the recipient under any Note, the Company and the
Guarantor shall indemnify the recipient against any loss sustained by it as a result. In any
event, the Company and the Guarantor shall indemnify the recipient against the cost of making any
such purchase. For the purposes of this Section 2.12, it will be sufficient for the Holder to
certify in a satisfactory manner (indicating the sources of information used) that it would have
suffered a loss had an actual purchase of U.S. dollars been made with the amount so received in
that other currency on the date of receipt or recovery (or, if a purchase of U.S. dollars on such
date had not been practicable, on the first date on which it would have been practicable, it being
required that the need for a change of date be certified in the manner mentioned above). These
indemnities constitute a separate and independent obligation from the Company’s and the Guarantor’s
other obligations, shall give rise to a separate and independent cause of action, shall apply
irrespective of any indulgence granted by any Holder and shall continue in full force and effect
despite any other judgment, order, claim or proof for a liquidated amount in respect of any sum due
under any Note.

IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly
executed as of the date first above written.

KANSAS CITY SOUTHERN de MÉXICO, S.A. de C.V.

By:   /s/ Patrick J. Ottensmeyer

Name: Patrick J. Ottensmeyer

Title: Chief Financial Officer and

	 	 	 	Attorney-in-Fact

By:   /s/ Paul J. Weyandt

Name: Paul J. Weyandt

Title: Interim Treasurer and Attorney-in-Fact

GRUPO KCSM, S.A. de C.V.

By:   Patrick J. Ottensmeyer

Name: Patrick J. Ottensmeyer

Title: Chief Financial Officer and

	 	 	 	Attorney-in-Fact

By:   Paul J. Weyandt

Name: Paul J. Weyandt

Title: Interim Treasurer and Attorney-in-Fact

THE BANK OF NEW YORK, as Trustee

By:   /s/ Luis Perez

Name: Luis Perez

Title: Assistant Vice President

2

DEUTSCHE BANK LUXEMBOURG S.A., as Paying Agent

By:   /s/ Wanda Camacho

Name: Wanda Camacho

Title: Vice President

By:   /s/ Richard L. Buckwalter

Name: Richard L. Buckwalter

Title: Vice President

3

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