Document:

Ninth Supplemental Indenture dated as of December 18, 2006

 Exhibit 4.1 
 EXECUTION COPY 
  

 América Móvil, S.A. de C.V.,  
 as Issuer 
 and 
 Radiomóvil Dipsa, S.A. de C.V.,

 as Guarantor 
 to

 The Bank of New York 
 (as
successor to JPMorgan Chase Bank, N.A.), 
 as Trustee 
  

 NINTH
SUPPLEMENTAL INDENTURE 
 Dated as of December 18, 2006 
  

 Ps.8,000,000,000 
 8.46% Senior Notes due 2036 
  

 TABLE OF CONTENTS 
  

					
	 	  	 	  	Page
	 ARTICLE ONE DEFINITIONS
	  	1
			
	 Section 101.
	  	 Provisions of the Base Indenture
	  	1
	 Section 102.
	  	 Definitions
	  	2
		
	 ARTICLE TWO GENERAL TERMS AND CONDITIONS OF THE NOTES
	  	5
			
	 Section 201.
	  	 Designation and Principal Amount
	  	5
	 Section 202.
	  	 Legal Holidays
	  	6
	 Section 203.
	  	 Denominations
	  	6
	 Section 204.
	  	 Computation of Interest
	  	6
	 Section 205.
	  	 Payment Currency
	  	6
	 Section 206.
	  	 Calculation Agent
	  	7
	 Section 207.
	  	 Payment of Additional Amounts
	  	9
	 Section 208.
	  	 Forms Generally
	  	9
	 Section 209.
	  	 Form of Trustee’s Certificate of Authentification
	  	20
	 Section 210.
	  	 Registration of Transfer and Exchange
	  	21
	 Section 211.
	  	 Transfers and Exchanges
	  	22
	 Section 212.
	  	 ISIN Numbers
	  	24
	 Section 213.
	  	 Defeasance
	  	25
	 Section 214.
	  	 Supplemental Indentures with Consent of Holders
	  	26
	 Section 215.
	  	 Maintenance of Office or Agency
	  	26
	 Section 216.
	  	 EuroMTF Listing
	  	27
		
	 ARTICLE THREE MISCELLANEOUS PROVISIONS
	  	27
			
	 Section 301.
	  	 Separability of Invalid Provisions
	  	27
	 Section 302.
	  	 Execution in Counterparts
	  	27
	 Section 303.
	  	 Certain Matters
	  	27

  

 i 

 NINTH SUPPLEMENTAL INDENTURE, dated as of December 18, 2006, among América Móvil, S.A.
de C.V., a sociedad anónima de capital variable organized and existing under the laws of the United Mexican States (“Mexico”) (herein called the “Company”), having its principal office at Lago Alberto 366, Edificio
Telcel I, Piso 2, Colonia Anáhuac, 11320, Mexico, D.F., Mexico, Radiomóvil Dipsa, S.A. de C.V., a sociedad anónima de capital variable organized and existing under the laws of Mexico (herein called the
“Guarantor”), having its principal office at Lago Alberto 366, Edificio Telcel I, Piso 2, Colonia Anáhuac, 11320, Mexico, D.F., Mexico, and The Bank of New York (as successor to JPMorgan Chase Bank, N.A.), a banking corporation duly
organized and existing under the laws of the State of New York, as Trustee (herein called the “Trustee”) to the Indenture, dated as of March 9, 2004, among the Company, the Guarantor and the Trustee (as supplemented by the Fifth
Supplemental Indenture, dated as of December 14, 2004, and the Eighth Supplemental Indenture, dated as of September 29, 2006, herein called the “Base Indenture”). 
 WITNESSETH: 
 WHEREAS, the Base Indenture provides, in Section 301 thereof, for
the issuance from time to time thereunder, in series, of debt Securities of the Company, and Section 901 of the Base Indenture provides for the establishment of the form or terms of Securities issued thereunder through one or more supplemental
indentures; 
 WHEREAS, the Company desires by this Ninth Supplemental Indenture to create a series of Securities to be issuable under the
Base Indenture, as supplemented by this Ninth Supplemental Indenture, and to be known as the Company’s “8.46% Senior Notes Due 2036” (the “Notes”), which are to be initially limited in aggregate principal amount as specified
in this Ninth Supplemental Indenture and the terms and provisions of which are to be as specified in this Ninth Supplemental Indenture; 
 WHEREAS, the Company has duly authorized the execution and delivery of this Ninth Supplemental Indenture to establish the Notes as a series of Securities under the Base Indenture and to provide for, among other things, the issuance of and
the form and terms of the Notes and additional covenants for purposes of the Notes and the Holders thereof; 
 WHEREAS, the Guarantor has
duly authorized the execution and delivery of this Ninth Supplemental Indenture to provide for the Guarantees of the Notes; and 
 WHEREAS,
all things necessary to make this Ninth Supplemental Indenture a valid agreement of the Company and the Guarantor, in accordance with its terms, have been done. 
 NOW, THEREFORE, for and in consideration of the premises and the purchase and acceptance of the Notes by the Holders thereof and for the purpose of setting forth, as provided in the Base Indenture, the form of the
Notes and the terms, provisions and conditions thereof, the Company and the Guarantor covenant and agree with the Trustee as follows: 
 ARTICLE ONE 
 DEFINITIONS 
 Section 101. Provisions of the Base Indenture. 
 Except insofar as herein otherwise expressly provided, all the
definitions, provisions, terms and conditions of the Base Indenture shall remain in full force and effect. The Base Indenture, as supplemented by this Ninth Supplemental Indenture, is in all respects ratified and confirmed, and the 

 
Base Indenture and this Ninth Supplemental Indenture shall be read, taken and considered as one and the same instrument for all purposes and every Holder of
Notes of any series authenticated and delivered under this Ninth Supplemental Indenture shall be bound thereby. 
 Section 102. Definitions.

 For all purposes of this Ninth Supplemental Indenture and the Notes, except as otherwise expressly provided or unless the subject matter or
context otherwise requires: 
 (a) any reference to an “Article” or a “Section” refers to an Article or Section, as the
case may be, of this Ninth Supplemental Indenture; 
 (b) the words “herein”, “hereof and “hereunder” and other words
of similar import refer to this Ninth Supplemental Indenture as a whole and not to any particular Article, Section or other subdivision; 
 (c) all terms used in this Ninth Supplemental Indenture that are defined in the Base Indenture have the meanings assigned to them in the Base Indenture; 
 (d) the term “Securities”, as defined in the Base Indenture and as used in any definition therein, shall be deemed to include or refer to, as applicable, the Notes; 
 (e) the term “Depositary” as used in the Base Indenture and herein shall be deemed to refer, with respect to the Notes (but not with respect to
any other series of Securities), to The Bank of New York, as common depositary for Clearstream, Luxembourg and Euroclear, until a successor Depositary shall have become Depositary pursuant to the applicable provisions of the Base Indenture, and
thereafter “Depositary” shall mean such successor Depositary; 
 (f) the term “Applicable Procedures” as used in the Base
Indenture and herein shall be deemed to refer, with respect to the Notes (but not with respect to any other series of Securities), to the rules and procedures of Clearstream, Luxembourg and Euroclear, to the extent applicable to such transaction and
as in effect from time to time; and 
 (g) the following terms have, with respect to the Notes (but not with respect to any other series of
Securities), the meanings given to them in this Section 102(g). 
 “Agent Member Transferee” has the meaning specified in
Section 211(b) hereof. 
 “Agent Member Transferor” has the meaning specified in Section 211(b) hereof. 
 “Calculation Agent” has the meaning specified in Section 206 hereof. 
 “EuroMTF” has the meaning specified in Section 216 hereof. 
 “Exchange Notes” means the securities with terms substantially identical to the Original Notes (except for the differences provided in the Registration Rights Agreement) issued pursuant to the Exchange
Offer. 
 “Exchange Offer” means an offer made pursuant to an effective registration statement under the Securities Act by the
Company and the Guarantor to exchange the Exchange Notes for the Registrable Notes as required by the Registration Rights Agreement. 
  

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 “Global Note” means a Note that evidences all or part of the Notes and is authenticated and
delivered to, and registered in the name of, the Depositary for such Notes or a nominee thereof. Global Notes shall include Restricted Global Notes, Regulation S Global Notes and Unrestricted Global Notes. 
 “Initial Purchasers” means the initial purchasers of the Notes listed in Schedule 1 to the Purchase Agreement. 
 “Mexican FX Day” means each Monday, Tuesday, Wednesday, Thursday and Friday that is (i) not a day on which banking institutions or foreign
exchange markets in Mexico City generally are authorized or obligated by law, regulation or executive order to close and (ii) a day on which banking institutions and foreign exchange markets in Mexico City are open for business with the general
public. 
 “Original Notes” means all Notes (including any additional notes issued pursuant to Section 201(b) hereof)
other than Exchange Notes. 
 “Owner Transferee” has the meaning specified in Section 211(b) hereof. 
 “Owner Transferor” has the meaning specified in Section 211(b) hereof. 
 “Permitted Holder” means, at any time, any Person who, at such time, is the Holder of at least Ps.50,000,000 in aggregate principal amount of
Notes. 
 “Peso” and “Ps.” mean a Mexican peso or other equivalent unit in such coin or currency of Mexico as at the time
shall be legal tender for the payment of public and private debts. 
 “Predecessor Note” means, with respect to any particular
Note, every previous Note evidencing all or a portion of the same debt as that evidenced by such particular Note; and, for the purposes of this definition, any Note authenticated and delivered under Section 305 of the Base Indenture in exchange
for or in lieu of a mutilated, destroyed, lost or stolen Note shall be deemed to evidence the same debt as the mutilated, destroyed, lost or stolen Note. 
 “Purchase Agreement” means the Purchase Agreement, dated December 7, 2006, by and among the Company, the Guarantor and the Initial Purchasers. 
 “Qualified Institutional Buyer” means a “qualified institutional buyer” as defined in Rule 144A. 
 “Rate Calculation Date” means the second Mexican FX Day immediately preceding an Interest Payment Date, Redemption Date, Stated Maturity or
other Maturity or other payment date for Defaulted Interest pursuant to Section 306 of the Base Indenture, as applicable. Notwithstanding the preceding sentence, if the Rate Calculation Date is not a Business Day, then the Rate Calculation Date
will be the immediately preceding Mexican FX Day (i.e., prior to such second Mexican FX Day) that is a Business Day. 
 “Registered
Notes” means the Exchange Notes and all other Notes sold or otherwise disposed of pursuant to an effective registration statement under the Securities Act. 
 “Registrable Notes” shall have the meaning assigned to it in the Registration Rights Agreement. 
  

 3 

 “Registration Default” means occurrence of any of the events set forth in Section 2(e) of
the Registration Rights Agreement which gives rise to an obligation on the part of the Company to pay additional interest on the Notes in accordance therewith. 
 “Registration Rights Agreement” means the Registration Rights Agreement, dated as of December 18, 2006, among the Company, the Guarantor and the Initial Purchasers, as such agreement may be amended from
time to time. 
 “Regulation S” means Regulation S under the Securities Act. 
 “Regulation S Global Note” has the meaning specified in Section 208 hereof. 
 “Restricted Global Note” has the meaning specified in Section 208 hereof. 
 “Restricted Global Transferred Amount” has the meaning specified in Section 211(b) hereof. 
 “Restricted Notes” means Notes offered and sold in their initial distribution in transactions exempt from the registration requirements of the
Securities Act other than pursuant to Regulation S. 
 “Restricted Period” means the period of 40 consecutive days beginning on and
including the later of (i) the day on which the Original Notes are first offered to persons other than distributors (as defined in Regulation S) in reliance on Regulation S and (ii) the day on which the closing of the offering of the
Original Notes pursuant to the Purchase Agreement occurs. 
 “Restrictive Legends” has the meaning specified in
Section 211(a). 
 “Rule 144A” means Rule 144A under the Securities Act. 
 “Rule 144” means Rule 144 under the Securities Act. 
 “Settlement Rate” means the Peso / Dollar exchange rate (the “FIX FX Rate”) reported by the Banco de México as the average of quotes in the wholesale foreign exchange market in Mexico for
transactions payable in 48 hours on its website on the applicable Rate Calculation Date. In the event that the FIX FX Rate is not so available by 3:00 p.m. (Mexico City time) on any Rate Calculation Date, then the Settlement Rate for such Rate
Calculation Date will be determined by the Calculation Agent by taking the arithmetic mean (such mean, the “Alternative Rate”) of the Peso / Dollar exchange rate for the foreign exchange market in Mexico for transactions payable in 48
hours offered at or about such time on such date by (i) Banco Nacional de México, S.A., Institución de Banca Múltiple, (ii) Banco Inbursa, S.A., Institución de Banca Múltiple, Grupo Financiero Inbursa,
(iii) Bank of America Global FX, (iv) HSBC México, S.A., Institución de Banca Múltiple, Grupo Financiero HSBC and (v) JPMorgan Chase Bank, N.A. (the “Reference Banks”); provided, however, that if
any of the Reference Banks ceases to offer such an exchange rate, that bank will be replaced by the Company, for the purpose of determining the Alternative Rate, with another leading bank or financial institution. In the event that the Calculation
Agent determines, in its sole and absolute discretion, that neither the FIX FX Rate nor the Alternative Rate can be ascertained on a Rate Calculation Date in accordance with the foregoing, the Company will determine the Settlement Rate (and method
of determining the Settlement Rate) in respect of such date in its sole and absolute discretion, taking into consideration all available information that in good faith it deems relevant. 
  

 4 

 “Unrestricted Global Note” has the meaning specified in Section 208 hereof. 
 ARTICLE TWO 
 GENERAL TERMS AND
CONDITIONS OF THE NOTES 
 Section 201. Designation and Principal Amount. 
 (a) There is hereby authorized and established a series of Securities designated the “8.46% Senior Notes due 2036” (the “Notes”),
initially in an aggregate principal amount of Ps.8,000,000,000 (which amount does not include Notes authenticated and delivered upon registration of transfer of, in exchange for, or in lieu of, other Securities of such series pursuant to Sections
304, 305, 906 or 1205 of the Base Indenture), which amount shall be specified in the Company Order for the authentication and delivery of Notes pursuant to Section 303 of the Base Indenture. The principal of the Notes shall be due and payable
at their Stated Maturity. 
 (b) The Company may, from time to time and without the consent of the Holders, issue additional notes, with
Guarantees of the Guarantor duly annexed thereto or endorsed thereon, on terms and conditions identical to those of the Notes (except for issue date, issue price and the date from which interest shall accrue and, if applicable, first be paid), which
additional notes, together with Guarantees of the Guarantor duly annexed thereto or endorsed thereon, shall increase the aggregate principal amount of, and shall be consolidated and form a single series with, the Notes. 
 (c) The Company may issue Exchange Notes, with Guarantees of the Guarantor duly annexed thereto or endorsed thereon, pursuant to an Exchange Offer, in
each case pursuant to a Board Resolution and subject to Section 303 of the Base Indenture, in authorized denominations in exchange for a like principal amount of the Original Notes. Upon any such exchange of Original Notes, the Original Notes
so exchanged shall be canceled in accordance with Section 308 of the Base Indenture and shall no longer be deemed Outstanding for any purpose. The Original Notes and any Exchange Notes shall vote and consent together on all matters as one class
and none of the Original Notes nor the Exchange Notes shall have the right to vote or consent as a class separate from one another on any matter. 
 (d) The Stated Maturity of the Notes shall be December 18, 2036. The Notes shall bear interest at the rate of 8.46% per annum, from December 18, 2006 or from the most recent Interest Payment Date (or, in the case that
Section 202 hereof is applicable, the subsequent Business Day) on which interest has been paid or duly provided for, as the case may be, payable semi-annually on June 18 and December 18, commencing on June 18, 2007, until the
principal thereof is paid or made available for payment; provided, however, that, with respect to any Registrable Notes, if a Registration Default occurs, such Registrable Notes shall bear additional interest as a result thereof (at an
incremental rate per annum of 0.50%), as liquidated damages and not as a penalty, from the day such Registration Default occurs to but not including the first day thereafter that no Registration Default is continuing or such Registrable Notes become
freely transferable under the Securities Act, all in accordance with the provisions of the Registration Rights Agreement, payable semi-annually on the Interest Payment Dates (or, in the case that Section 202 hereof is applicable, the subsequent
Business Day) commencing on the first Interest Payment Date after the day on which such Registration Default occurs; and provided, further, that any amount of interest on any Note which is overdue shall bear interest (to the extent
that payment thereof shall be legally enforceable) at the rate per annum then borne by such Note from the date such amount is due to the day it is paid or made available for payment, and such overdue interest shall be paid as provided in
Section 306 of the Base Indenture. 
  

 5 

 Section 202. Legal Holidays. 
 Section 114 of the Base Indenture is hereby amended and restated with respect to the Notes (but not with respect to any other series of Securities) as follows: 
 “In any case where any Interest Payment Date, Redemption Date, Stated Maturity or other Maturity of the Notes shall not be a Business
Day, then (notwithstanding any other provision of this Indenture or of the Notes) payment of interest, principal or Additional Amounts will not be made on such date, but will be made on the next succeeding Business Day with the same force and effect
as if made on the Interest Payment Date, Redemption Date, Stated Maturity or other Maturity, as the case may be; provided that interest will accrue on the principal of the Notes at the applicable interest rate from the original Interest
Payment Date, Redemption Date, Stated Maturity or other Maturity, as the case may be, to (but excluding) that next Business Day.” 
 Section 203.
Denominations. 
 The Notes shall issued only in denominations of Ps. 1,000,000 and integral multiples of Ps. 100,000 in excess
thereof. 
 Section 204. Computation of Interest. 
 Section 309 of the Base Indenture is hereby amended and restated with respect to the Notes (but not with respect to any other series of Securities) as follows: 
 “Interest on the Notes shall be computed on the basis of the actual number of days during the relevant interest period and a 360-day
year.” 
 Section 205. Payment Currency. 
 (a) Payment of principal, interest, Additional Amounts and any other amounts due in respect of the Notes shall be made, except as provided below, in Dollars, in amounts determined by the Calculation Agent by
translating the corresponding Peso amounts into Dollars at the Settlement Rate on the Rate Calculation Date applicable to the relevant Interest Payment Date, Redemption Date, Stated Maturity or other Maturity or payment date for Defaulted Interest
pursuant to Section 306 of the Base Indenture. 
 (b) Holders of the Notes may
elect to receive payment of principal, interest, Additional Amounts and any other amounts due in respect of the Notes in Pesos. Holders who wish to elect to receive a particular payment of principal, interest, Additional Amounts and any other
amounts due in respect of the Notes in Pesos must notify the principal Paying Agent (initially, the Trustee) no later than the 8th day preceding the
applicable Interest Payment Date, Redemption Date, Stated Maturity or other Maturity (but not earlier than the applicable Regular Record Date or Special Record Date). Any notice referred to in this paragraph must be delivered in accordance with the
provisions of Section 105 of the Base Indenture for notices by Holders to the Trustee or, if the Holder is a common depositary (or nominee) for Clearstream, Luxembourg and Euroclear, pursuant to a “swift message” or similar
communication. The principal Paying Agent shall notify the Company, the Trustee and any other Paying Agent of any elections by Holders to receive payment in Pesos (including the amounts so selected) as soon as reasonably practicable (and in no case
later than 24 hours) after receipt thereof as set forth above. 
 (c) Clause (1) of Section 306 of the Base Indenture is
hereby amended and restated with respect to the Notes (but not with respect to any other series of Securities) as follows: 
  

 6 

 “(1) The Company may elect to make payment of any Defaulted Interest to the Persons
in whose names the Notes (or their respective Predecessor Notes) are registered at the close of business on a Special Record Date for the payment of such Defaulted Interest, which shall be fixed in the following manner. The Company shall notify the
Trustee in writing of the amount of Defaulted Interest proposed to be paid on each Note and the date of the proposed payment, and at the same time the Company shall make arrangements satisfactory to the Trustee for the deposit with the Trustee of an
amount of money equal to the aggregate amount proposed to be paid in respect of such Defaulted Interest prior to the time of the proposed payment, such money when deposited to be held in trust for the benefit of the Persons entitled to such
Defaulted Interest as in this Clause provided. Thereupon the Trustee shall fix a Special Record Date for the payment of such Defaulted Interest which shall be not more than 20 days and not less than 15 days prior to the date of the proposed payment
and not less than 15 days after the receipt by the Trustee of the notice of the proposed payment. The Trustee shall promptly notify the Company of such Special Record Date and, in the name and at the expense of the Company, shall cause notice of the
proposed payment of such Defaulted Interest and the Special Record Date therefor to be mailed, first-class postage prepaid, to each Holder of Securities of such series at his address as it appears in the Security Register, not less than 15 days
prior to such Special Record Date. Notice of the proposed payment of such Defaulted Interest and the Special Record Date therefor having been so mailed, such Defaulted Interest shall be paid to the Persons in whose names the Notes (or their
respective Predecessor Notes) are registered at the close of business on such Special Record Date and shall no longer be payable pursuant to the following Clause (2).” 
 Section 206. Calculation Agent. 
 (a) As long as any Notes are outstanding, the Company shall
maintain a calculation agent for calculating the Settlement Rate in respect of the Notes (the “Calculation Agent”). The Calculation Agent shall determine the Settlement Rate applicable to the Notes in accordance with Section 205
hereof and the Dollars to be paid per Ps. 1,000,000 principal amount of Notes. 
 The Calculation Agent shall notify, in writing the Company,
the Trustee and any Paying Agent of each Settlement Rate and the Dollar amounts to be paid per Ps. 1,000,000 principal amount of Notes as soon a reasonably practicable after determination thereof (and in no case later than one Business Day prior to
the applicable Interest Payment Date, Redemption Date, Stated Maturity or other Maturity or payment date for Defaulted Interest pursuant to Section 306 of the Base Indenture). In addition, the Calculation Agent shall provide or publish,
promptly after determination thereof (and in no case later than one Business Day prior to the applicable Interest Payment Date, Redemption Date, Stated Maturity or other Maturity or other payment date), the Settlement Rate and the Dollar amounts to
be paid per Ps.1,000,000 principal amount of Notes in the same manner as for giving notice to Holders of the Notes pursuant to Section 106 of the Base Indenture and, for so long as any Notes are admitted to listing on the Official List of the
Luxembourg Stock Exchange and trading on the EuroMTF and rules of the Luxembourg Stock Exchange so require, in a newspaper with general circulation in Luxembourg or on the website of the Luxembourg Stock Exchange (www.bourse.lu). 
 The determinations of the Calculation Agent shall, in the absence of manifest error, be conclusive for all purposes and binding on the Company and on the
Holders of the Notes. 
 (b) The Company hereby appoints The Bank of New York as the initial Calculation Agent with respect to the Notes, and
The Bank of New York hereby accepts such appointment in such capacity and its obligations as set forth in this Ninth Supplemental Indenture upon the terms and conditions set forth in this Ninth Supplemental Indenture. 
  

 7 

 (c) The Company hereby agrees to pay the Calculation Agent its fees and expenses as agreed upon
separately in writing. 
 (d) The Calculation Agent accepts its obligations set forth herein upon the terms and conditions hereof, including
the following terms and conditions (to all of which the Company agrees); 
 (i) in acting under this Ninth Supplemental
Indenture and in connection with the Notes, the Calculation Agent, acting as agent for the Company, does not assume any obligation toward, or any relationship of agency or trust for or with, any of the Holders of the Notes; 
 (ii) unless herein otherwise specifically provided, any order, certificate, notice, request or communication from the Company made or
given under any provision of this Ninth Supplemental Indenture shall be sufficient if signed by any person whom the Calculation Agent reasonably believes to be a duly authorized officer or attorney-in-fact of the Company; 
 (iii) the Calculation Agent shall be obligated to perform only such duties as are set forth specifically herein, in the Notes or in this
Ninth Supplemental Indenture and any duties necessarily incidental thereto; 
 (iv) the Calculation Agent shall be protected
and shall incur no liability for or in respect of any action taken or omitted to be taken or anything suffered by it in reliance upon any provision contained in the Notes, this Ninth Supplemental Indenture or any information supplied to it by an
officer of the Company; 
 (v) the Calculation Agent shall incur no liability hereunder except for loss sustained by reason of
its or its employees’ or agents’ gross negligence, willful misconduct or bad faith; 
 (vi) the Calculation Agent
shall not be required to expend or risk its own funds or otherwise incur any financial liability in the performance of any of its duties hereunder, or in the exercise of any of its rights or powers; 
 (vii) the Calculation Agent may consult with counsel of its own choice and the advice of such counsel or any Opinion of Counsel shall be
full and complete authorization and protection in respect of any action taken, suffered or omitted by it hereunder in good faith and reliance thereon; 
 (viii) the Calculation Agent makes no representations as to the validity or sufficiency of this Ninth Supplemental Indenture; and 
 (ix) the Calculation Agent shall in no event be liable for special, indirect or consequential loss or damage of any kind whatsoever
(including, without limitation, lost profits), even if the Calculation Agent has been advised of the likelihood of such loss or damage and regardless of the form of action. 
 (e) The Company shall have the right to remove the Calculation Agent from such capacity at its discretion. The Company shall appoint a bank, trust
company, investment banking firm or other financial institution to act as the successor Calculation Agent to The Bank of New York or any of its successors in that capacity in the event that: 
  

	 	(i)	any acting Calculation Agent is unable or unwilling to act; 

  

 8 

	 	(ii)	any acting Calculation Agent fails to comply with its obligations under this Ninth Supplemental Indenture; or 

  

	 	(iii)	the Company proposes to remove the Calculation Agent. 

 Section 207.
Payment of Additional Amounts. 
 Clauses (i) through (v) of Section 1009 of the Base Indenture are hereby amended and
restated with respect to the Notes (but not with respect to any other series of Securities) as follows: 
 “(i) that any
such taxes, duties, assessments or other governmental charges would not have been imposed but for (A) a connection between the Holder and Mexico other than the ownership or holding of such Security or the mere receipt of payments with respect
to such Security or (B) failure by the Holder or any other Person to comply with any certification, identification or other reporting requirement concerning the nationality, residence, identity or connection with Mexico of the Holder or any
beneficial owner of such Security if compliance is required by law, regulation or by an applicable income tax treaty to which Mexico is a party, as a precondition to exemption from, or reduction in the rate of, the tax, assessment or other
governmental charge and we have given the Holders at least 30 days’ notice prior to the first payment date with respect to which such certification, identification or reporting requirement is required to the effect that Holders will be required
to provide such information and identification; 
 (ii) of any such taxes, duties, assessments or other governmental charges
with respect to a Security presented for payment more than 15 days after the date on which such payment became due and payable or the date on which payment thereof is duly provided for and notice thereof given to Holders, whichever occurs later,
except to the extent that the Holder of such Security would have been entitled to such Additional Amounts on presenting such Security for payment on any date during such 15-day period; 
 (iii) of estate, inheritance, gift or other similar taxes, assessments or other governmental charge imposed with respect to a Security;

 (iv) any tax, duty, assessment or other governmental charge payable otherwise than by deduction or withholding from
payments on any series of Securities; 
 (v) any payment on a Security to a Holder who is a fiduciary or partnership or a
person other than the sole beneficial owner of any such payment, to the extent that a beneficiary or settlor with respect to such fiduciary, a member of such a partnership or the beneficial owner of such payment would not have been entitled to the
Additional Amounts had such beneficiary, settlor, member or beneficial owner been the Holder of such Security; and 
 (vi) any
tax, duty, assessment or governmental charge imposed on a payment to a Holder and required to be made pursuant to any law implementing or complying with, or introduced in order to conform to, any European Union Directive on the taxation of
savings.” 
 Section 208. Forms Generally. 
 The Notes and the Guarantees annexed thereto or endorsed thereon shall be in substantially the forms set forth in this Section 208, with such appropriate insertions, omissions, substitutions and other variations
as are required or permitted by this Ninth Supplemental Indenture, and may have such letters, numbers or other marks of identification and such legends or endorsements placed 

  

 9 

 
thereon as may be required to comply with the rules of any securities exchange or as may, consistently herewith, be determined by the officers executing such
Notes, as evidenced by their execution thereof, with Guarantees duly annexed thereto or endorsed thereon. 
 Upon their original issuance,
Notes offered and sold to Qualified Institutional Buyers in accordance with Rule 144A shall be issued in the form of one or more Global Notes in definitive, fully registered form, with Guarantees annexed thereto or endorsed thereon, without coupons,
substantially in the form set forth in this Section 208, with such applicable legends as provided herein (each, a “Restricted Global Note”). Such Restricted Global Notes shall be registered in the name of the Depositary, or its
nominee, and deposited with the Trustee, at its Corporate Trust Office, as custodian for the Depositary, duly executed by the Company, with Guarantees duly annexed thereto or endorsed thereon, and authenticated by the Trustee as hereinafter
provided. The aggregate amount of any Restricted Global Notes may from time to time be increased or decreased by adjustments made on the records of the Trustee, as custodian for the Depositary, as provided in Section 211 hereof. 
 Upon their original issuance, Notes offered and sold in reliance on Regulation S shall initially be issued in the form of one or more Global Notes in
definitive, fully registered form, with Guarantees annexed thereto or endorsed thereon, without coupons, substantially in the form set forth in this Section 208, with such applicable legends as provided herein (each, a “Regulation S Global
Note”). Such Regulation S Global Notes shall be registered in the name of the Depositary, or its nominee, and deposited with the Trustee, at its Corporate Trustee Office, as custodian for the Depositary, duly executed by the Company, with
Guarantees duly annexed thereto or endorsed thereon, and authenticated by the Trustee as hereinafter provided. After such time as the applicable Restricted Period shall have terminated, each such Regulation S Global Note shall be referred to herein
as an “Unrestricted Global Note”. The aggregate principal amount of any Regulation S Global Note or any Unrestricted Global Note may from time to time be increased or decreased by adjustments made on the records of the Trustee, as
custodian for the Depositary, as provided in Section 211 hereof. 
 For all purposes of this Ninth Supplemental Indenture, the term
“Restricted Notes” shall include all Notes, together with Guarantees of the Guarantor annexed thereto or endorsed thereon, issued upon registration or transfer of, in exchange for or in lieu of, Restricted Notes except as otherwise
provided in Section 211 hereof. 
 (a) Form of Face of Note. 
 [INCLUDE IF NOTE IS A GLOBAL NOTE — THIS IS A GLOBAL NOTE WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO, AS SUPPLEMENTED BY THE
NINTH SUPPLEMENTAL INDENTURE HEREINAFTER REFERRED TO, AND IS REGISTERED IN THE NAME OF, THE BANK OF NEW YORK AS COMMON DEPOSITARY (THE “COMMON DEPOSITARY”), OR CLEARSTREAM BANKING, SOCIÉTÉ ANONYMÉ AND EUROCLEAR BANK
S.A./N.V. OR A NOMINEE OF THE COMMON DEPOSITARY, WHICH MAY BE TREATED BY AMÉRICA MÓVIL, S.A. DE C.V., THE TRUSTEE AND ANY AGENT THEREOF AS OWNER AND HOLDER OF THIS NOTE FOR ALL PURPOSES. UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN
PART FOR REGISTERED NOTES IN DEFINITIVE REGISTERED FORM IN THE LIMITED CIRCUMSTANCES REFERRED TO IN THE INDENTURE, AS SUPPLEMENTED BY THE NINTH SUPPLEMENTAL INDENTURE, THIS GLOBAL NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE COMMON
DEPOSITARY TO A NOMINEE OF THE COMMON DEPOSITARY OR BY A NOMINEE OF THE COMMON DEPOSITARY TO THE COMMON DEPOSITARY OR ANOTHER NOMINEE OF THE COMMON DEPOSITARY OR BY THE COMMON DEPOSITARY OR ANY NOMINEE OF THE COMMON DEPOSITORY TO A SUCCESSOR
DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY.] 
  

 10 

 [INCLUDE IF NOTE IS A RESTRICTED GLOBAL NOTE (UNLESS, PURSUANT TO SECTION 208 OF THE
NINTH SUPPLEMENTAL INDENTURE, THE COMPANY DETERMINES AND CERTIFIES TO THE TRUSTEE THAT THE LEGEND MAY BE REMOVED) — NEITHER THIS GLOBAL NOTE OR ANY BENEFICIAL INTEREST HEREIN NOR THE GUARANTEE HEREOF HAS BEEN REGISTERED UNDER THE U.S.
SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”). NEITHER THIS GLOBAL NOTE OR ANY BENEFICIAL INTEREST HEREIN NOR THE GUARANTEE HEREOF MAY BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED EXCEPT (1) TO A PERSON WHOM THE
SELLER REASONABLY BELIEVES IS A QUALIFIED INSTITUTIONAL BUYER WITHIN THE MEANING OF RULE 144A UNDER THE SECURITIES ACT PURCHASING FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A QUALIFIED INSTITUTIONAL BUYER OR BUYERS IN A TRANSACTION MEETING THE
REQUIREMENTS OF RULE 144A, (2) IN AN OFFSHORE TRANSACTION COMPLYING WITH RULE 903 OR RULE 904 OF REGULATION S UNDER THE SECURITIES ACT, (3) PURSUANT TO AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT PROVIDED BY RULE 144 THEREUNDER
(IF AVAILABLE) OR (4) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT (PROVIDED THAT AS A CONDITION TO REGISTRATION OF TRANSFER OF THIS GLOBAL NOTE, AMÉRICA MÓVIL, S.A. DE C.V. OR THE TRUSTEE MAY
REQUIRE DELIVERY OF ANY DOCUMENTS OR OTHER EVIDENCE THAT IT, IN ITS DISCRETION, DEEMS NECESSARY OR APPROPRIATE TO EVIDENCE COMPLIANCE WITH THE EXEMPTION REFERRED TO IN CLAUSE (3) ABOVE), AND, IN EACH CASE, IN ACCORDANCE WITH ALL APPLICABLE
SECURITIES LAWS OF THE STATES OF THE UNITED STATES AND OTHER JURISDICTIONS. 
 [INCLUDE IF NOTE IS A REGULATION S GLOBAL NOTE
(UNLESS, PURSUANT TO SECTION 208 OF THE NINTH SUPPLEMENTAL INDENTURE, THE COMPANY DETERMINES AND CERTIFIES TO THE TRUSTEE THAT THE LEGEND MAY BE REMOVED) — THIS NOTE HAS NOT BEEN REGISTERED UNDER THE U.S. SECURITIES ACT OF
1933, AS AMENDED (THE “SECURITIES ACT”), AND MAY NOT BE OFFERED, SOLD OR DELIVERED IN THE UNITED STATES OR TO, OR FOR THE ACCOUNT OR BENEFIT OF, ANY U.S. PERSON, UNLESS SUCH NOTE IS REGISTERED UNDER THE SECURITIES ACT OR AN EXEMPTION FROM
THE REGISTRATION REQUIREMENTS THEREOF IS AVAILABLE. THE FOREGOING SHALL NOT APPLY FOLLOWING THE EXPIRATION OF 40 DAYS FROM THE LATER OF (i) THE DATE ON WHICH THIS NOTE WAS FIRST OFFERED AND (ii) THE DATE OF ISSUANCE OF THIS NOTE.]

 AMÉRICA MÓVIL, S.A. DE C.V. 
 8.46% SENIOR NOTES DUE 2036 
 [If Restricted Global Note — ISIN Number: XS0278906440 
 Common Code Number: 027890644] 
 [If Regulation S Global Note —
ISIN Number: XS0278859771 
 Common Code Number: 027885977] 
  

							
	No.	  		  		  	Ps.

 América Móvil, S.A. de C.V. (herein called the “Company”, which term
includes any successor Person under the Indenture hereinafter referred to, as supplemented by the Ninth Supplemental 

  

 11 

 
Indenture hereinafter referred to), a sociedad anónima de capital variable organized and existing under the laws of the United Mexican States
(“Mexico”), for value received, hereby promises to pay to
                                        , or
registered assigns, the principal sum of                      Pesos [if the Note is a Global Note, then insert — or such
other principal amount (which, when taken together with the principal amounts of all other Outstanding Notes, shall initially equal Ps.8,000,000,000 in the aggregate; provided, however, that the Company may from time to time or at any time,
without the consent of the Holders of the Notes, issue additional notes, with Guarantees of the Guarantor duly annexed thereto or endorsed thereon, with terms and conditions identical to those of the Notes, which additional notes, together with
Guarantees of the Guarantor duly annexed thereto or endorsed thereon, shall increase the aggregate principal amount of, and shall be consolidated and form a single series with, the Notes) as may be set forth in the records of the Trustee hereinafter
referred to in accordance with the Indenture (as supplemented by the Ninth Supplemental Indenture), on December 18, 2036 (unless earlier redeemed, in which case, on the applicable Redemption Date) and to pay interest thereon from [if
Note is originally issued on the date hereof, then insert — December 18, 2006] or from the most recent Interest Payment Date to which interest has been paid or duly provided for, as the case may be, semi-annually on June 18 and
December 18 in each year, commencing on June 18, 2007 at the rate of 8.46% per annum, until the principal hereof is paid or made available for payment, provided [if the Note is a Registrable Note, then insert —
that, upon the occurrence of a Registration Default in accordance with the Registration Rights Agreement, the per annum interest rate borne by this Note shall increase by adding 0.50% thereto, as liquidated damages and not as a penalty, for the
period from the first day on which such Registration Default occurs to but not including the first day thereafter until no Registration Default is continuing or such Registrable Notes become freely transferable under the Securities Act, all in
accordance with the provisions of the Registration Rights Agreement, and in which case the Company shall provide notice to the Trustee of such increase in interest rate, and shall cause the Trustee to provide appropriate notice thereof to the Holder
of this Note; and provided, further,] that any amount of interest on this Note which is overdue shall bear interest (to the extent that payment thereof shall be legally enforceable) at the rate per annum then borne by this Note from
the date such amount is due to but not including the day it is paid or made available for payment, and such overdue interest shall be paid as provided in Section 306 of the Indenture. 
 Payment of principal, interest, Additional Amounts and any other amounts due in respect of the Notes shall be made in Dollars or, subject to certain
conditions as set forth in the reverse hereof, Pesos. 
 The interest so payable, and punctually paid or duly provided for, on any Interest
Payment Date shall, as provided in the Indenture, as supplemented by the Ninth Supplemental Indenture, be paid to the Person in whose name this Note (or one or more Predecessor Notes) is registered at the close of business on the Regular Record Date
for such interest, which shall be June 1 or December 1 (whether or not a Business Day), as the case may be, next preceding such Interest Payment Date [if the Note is a Registrable Note, then insert —, provided that any
accrued and unpaid interest (including additional interest as a result of any Registration Default, if applicable) on this Note upon the issuance of an Exchange Note in exchange for this Note shall cease to be payable to the Holder hereof and shall
be payable instead on the next Interest Payment Date for such Exchange Note to the Holder thereof on the related Regular Record Date]. Any such interest not so punctually paid or duly provided for shall forthwith cease to be payable to the Holder on
the relevant Regular Record Date and may either be paid to the Person in whose name this Note (or one or more Predecessor Notes) is registered at the close of business on a Special Record Date for the payment of such Defaulted Interest to be fixed
by the Trustee, notice whereof shall be given to Holders of the Note not less than 15 days prior to such Special Record Date, or be paid at any time in any other lawful manner not inconsistent with the requirements of any securities exchange on
which the Note may be listed, and upon such notice as may be required by such exchange, all as more fully provided in the Indenture, as supplemented by the Ninth Supplemental Indenture. Interest on this Note shall be computed on the basis set forth
in the Indenture, as supplemented by the Ninth Supplemental Indenture. 
  

 12 

 Payment of the principal of and interest on this Note shall be made at the office of the Trustee or
agency of the Company in the Borough of Manhattan, New York City, New York and, if and for so long as the Notes are admitted to listing on the Official List of the Luxembourg Stock Exchange and trading on the EuroMTF, the alternative market of the
Luxembourg Stock Exchange, at the office of the paying agent in Luxembourg, in each case maintained for such purpose and at any other office or agency maintained by the Company for such purpose, against surrender of this Note in the case of any
payment due at the Maturity of the principal thereof; provided, however, that at the option of the Company payment of interest may be made by check mailed to the address of the Person entitled thereto as such address shall appear in the
Securities Register; and provided, further, that all payments of the principal of and interest on this Note, the Permitted Holders of which have given wire transfer instructions to the Trustee, the Company, or its agent at least 8 Business
Days prior to the applicable payment date, shall be required to be made by wire transfer of immediately available funds to the accounts specified by such Permitted Holders in such instructions. [If the Note is a Global Note, then insert
— Notwithstanding the foregoing, payment of any amount payable in respect of a Global Note shall be made in accordance with the Applicable Procedures of Clearstream, Luxembourg and Euroclear.] 
 Reference is hereby made to the further provisions of this Note set forth on the reverse hereof, which further provisions shall for all purposes have the
same effect as if set forth at this place. 
 Unless the certificate of authentication hereon has been executed by the Trustee referred to on
the reverse hereof by manual signature, this Note shall not be entitled to any benefit under the Indenture or the Ninth Supplemental Indenture or be valid or obligatory for any purpose. 
 IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed under its corporate seal. 
 Dated: 
  

			
	AMÉRICA MÓVIL, S.A. DE C.V.
		
	By:	 	  

	Name:	 	
	Title:	 	
		
	By:	 	  

	Name:	 	
	Title:	 	

 (b) Form of Reverse of Note. 
 This Note is a duly authorized issue of securities of the Company (herein collectively called the “Notes”), issued under an Indenture, dated as
of March 9, 2004, as supplemented by the Fifth Supplemental Indenture, dated as of December 14, 2004, and the Eighth Supplemental Indenture, dated as of September 29, 2006 (the “Indenture”, which term shall have the meaning
assigned to it in such 

  

 13 

 
instrument), and as further supplemented by the Ninth Supplemental Indenture dated as of December 18, 2006 (the “Ninth Supplemental
Indenture”), among the Company, Radiomóvil Dipsa, S.A. de C.V., a sociedad anónima de capital variable organized and existing under the laws of Mexico (herein called the “Guarantor”, which term includes any
successor Person under the Indenture) and The Bank of New York (as successor to JPMorgan Chase Bank, N.A.), as Trustee (herein called the “Trustee”, which term includes any successor trustee under the Indenture), and reference is hereby
made to the Indenture, as supplemented by the Ninth Supplemental Indenture, for a statement of the respective rights, limitations of rights, duties and immunities thereunder of the Company, the Guarantor, the Trustee and the Holders of the Notes and
of the terms upon which the Notes are, and are to be, authenticated and delivered. This Note is one of the series designated on the face hereof. 
 Additional notes on terms and conditions identical to those of this Note (except for issue date, issue price and the date from which interest shall accrue and, if applicable, first be paid) may be issued by the Company without the consent
of the Holders of the Notes. The amount evidenced by such additional Notes shall increase the aggregate principal amount of, and shall be consolidated and form a single series with, the Notes. 
 Payment of principal, interest, Additional Amounts and any other amounts due in respect of the Notes shall be made, except as provided below, in Dollars,
in amounts determined by the Calculation Agent by translating the corresponding Peso amounts into Dollars at the Settlement Rate on the Rate Calculation Date applicable to the relevant Interest Payment Date, Redemption Date, Stated Maturity or other
Maturity or payment date for Defaulted Interest pursuant to Section 306 of the Base Indenture. 
 For the purposes of translating Peso
amounts into Dollars: 
 “Mexican FX Day” means each Monday, Tuesday, Wednesday, Thursday and Friday that is
(i) not a day on which banking institutions or foreign exchange markets in Mexico City generally are authorized or obligated by law, regulation or executive order to close and (ii) a day on which banking institutions and foreign exchange
markets in Mexico City are open for business with the general public. 
 “Rate Calculation Date” means the second
Mexican FX Day immediately preceding an Interest Payment Date, Redemption Date, Stated Maturity or other Maturity or other payment date for Defaulted Interest pursuant to Section 306 of the Indenture, as applicable. Notwithstanding the
preceding sentence, if the Rate Calculation Date is not a Business Day, then the Rate Calculation Date will be the immediately preceding Mexican FX Day (i.e., prior to such second Mexican FX Day) that is a Business Day. 
 “Settlement Rate” means the Peso / Dollar exchange rate (the “FIX FX Rate”) reported by the Banco de México as
the average of quotes in the wholesale foreign exchange market in Mexico for transactions payable in 48 hours on its website on the applicable Rate Calculation Date. In the event that the FIX FX Rate is not so available by 3:00 p.m. (Mexico City
time) on any Rate Calculation Date, then the Settlement Rate for such Rate Calculation Date will be determined by the Calculation Agent by taking the arithmetic mean (such mean, the “Alternative Rate”) of the Peso / Dollar exchange rate
for the foreign exchange market in Mexico for transactions payable in 48 hours offered at or about such time on such date by (i) Banco Nacional de México, S.A., Institución de Banca Múltiple, (ii) Banco Inbursa, S.A.,
Institución de Banca Múltiple, Grupo Financiero Inbursa, (iii) Bank of America Global FX, (iv) HSBC México, S.A., Institución de Banca Múltiple, Grupo Financiero HSBC and (v) JPMorgan Chase Bank,
N.A. (the “Reference Banks”); provided, however, that if any of the Reference Banks ceases to offer such 

  

 14 

 
an exchange rate, that bank will be replaced by the Company, for the purpose of determining the Alternative Rate, with another leading bank or financial
institution. In the event that the Calculation Agent determines, in its sole and absolute discretion, that neither the FIX FX Rate nor the Alternative Rate can be ascertained on a Rate Calculation Date in accordance with the foregoing, the Company
will determine the Settlement Rate (and method of determining the Settlement Rate) in respect of such date in its sole and absolute discretion, taking into consideration all available information that in good faith it deems relevant. 
 Holders of the Notes may elect to receive payment of principal, interest, Additional Amounts and
any other amounts due in respect of the Notes in Pesos. Holders who wish to elect to receive a particular payment of principal, interest, Additional Amounts and any other amounts due in respect of the Notes in Pesos must notify the principal Paying
Agent no later than the 8th day preceding the applicable Interest Payment Date, Redemption Date, Stated Maturity or other Maturity or payment date for
Defaulted Interest pursuant to Section 306 of the Indenture (but not earlier than the applicable Regular Record Date or Special Record Date). 
 In any case where any Interest Payment Date, Redemption Date, Stated Maturity or other Maturity of the Notes shall not be a Business Day, then payment of interest, principal or Additional Amounts 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, Redemption Date, Stated Maturity or other Maturity, as the case may be; provided that interest will accrue
on the principal of the Notes at the applicable interest rate from the original Interest Payment Date, Redemption Date, Stated Maturity or other Maturity, as the case may be, to (but excluding) that next Business Day. 
 If an Event of Default with respect to Notes shall occur and be continuing, the principal of all of the Notes may be declared due and payable in the
manner and with the effect provided in the Indenture, as supplemented by the Ninth Supplemental Indenture. 
 All payments of principal and
interest in respect of the Notes shall be made after withholding or deduction for any present or future taxes, duties, assessments or governmental charges of whatever nature imposed, levied, collected, withheld or assessed by or on behalf of Mexico
or any authority therein or thereof having power to tax (“Mexican Taxes”). In the event of any withholding or deduction for any Mexican Taxes, the Company shall pay such additional amounts (“Additional Amounts”) as will result in
receipt by the Holders of Notes on the respective due dates of such amounts as would have been received by them had no such withholding or deduction (including for any Mexican Taxes payable in respect of Additional Amounts) been required, except
that no such Additional Amounts shall be payable with respect to any payment on a Note to the extent: 
 (i) that any such
taxes, duties, assessments or other governmental charges would not have been imposed but for (A) a connection between the Holder and Mexico other than the ownership or holding of such Note or the mere receipt of payments with respect to such
Note or (B) failure by the Holder or any other Person to comply with any certification, identification or other reporting requirement concerning the nationality, residence, identity or connection with Mexico of the Holder or any beneficial
owner of such Note if compliance is required by law, regulation or by an applicable income tax treaty to which Mexico is a party, as a precondition to exemption from, or reduction in the rate of, the tax, assessment or other governmental charge and
we have given the Holders at least 30 days’ notice prior to the first payment date with respect to which such certification, identification or reporting requirement is required to the effect that Holders will be required to provide such
information and identification; 
  

 15 

 (ii) of any such taxes, duties, assessments or other governmental charges with respect to
a Note presented for payment more than 15 days after the date on which such payment became due and payable or the date on which payment thereof is duly provided for and notice thereof given to Holders, whichever occurs later, except to the extent
that the Holder of such Note would have been entitled to such Additional Amounts on presenting such Note for payment on any date during such 15-day period; 
 (iii) of estate, inheritance, gift or other similar taxes, assessments or other governmental charge imposed with respect to a Note; 
 (iv) any tax, duty, assessment or other governmental charge payable otherwise than by deduction or withholding from payments on any series
of Notes; 
 (v) any payment on a Note to a Holder who is a fiduciary or partnership or a person other than the sole
beneficial owner of any such payment, to the extent that a beneficiary or settlor with respect to such fiduciary, a member of such a partnership or the beneficial owner of such payment would not have been entitled to the Additional Amounts had such
beneficiary, settlor, member or beneficial owner been the Holder of such Note; and 
 (vi) any tax, duty, assessment or
governmental charge imposed on a payment to a Holder and required to be made pursuant to any law implementing or complying with, or introduced in order to conform to, any European Union Directive on the taxation of savings. 
 For purposes of the provisions described in Clause (i) above, the term “Holder” of any Note means the direct nominee of any beneficial
owner of such Note, which holds such beneficial owner’s interest in such Note. Notwithstanding the foregoing, the limitations on the Company’s obligation to pay Additional Amounts set forth in Clause (i)(B) above shall not apply if
(a) the provision of information, documentation or other evidence described in such Clause (i)(B) would be materially more onerous, in form, in procedure or in the substance of information disclosed, to a Holder or beneficial owner of a Note
(taking into account any relevant differences between U.S. and Mexican law, regulation or administrative practice) than comparable information or other reporting requirements imposed under U.S. tax law (including the United States - Mexico Income
Tax Treaty), regulations (including proposed regulations) and administrative practice or (b) Rule 3.25.15 is in effect, unless the provision of the information, documentation or other evidence described in such Clause (i)(B) is expressly
required by statute, regulation, rule or administrative practice in order to apply Rule 3.25.15 and the Company cannot obtain such information, documentation or other evidence on its own through reasonable diligence and the Company otherwise would
meet the requirements for application of Rule 3.25.15. In addition, such Clause (i)(B) shall not be construed to require that a non-Mexican pension or retirement fund or a non-Mexican financial institution or any other Person register with the
Ministry of Finance and Public Credit for the purpose of establishing eligibility for an exemption from or reduction of Mexican withholding tax. [If the Note is a Global Note, then insert — Persons who hold a beneficial interest
in the Global Note through S.D. Indeval S.A. de C.V., Institución para el Depósito de Valores (“Indeval”), may be required to certify as to their residency in accordance with procedures established by Indeval.]

 The Company shall provide the Trustee with the constancia or other relevant documentation, if any, (which may consist of certified
copies of such documentation) satisfactory to the Trustee evidencing the payment of Mexican Taxes in respect of which the Company has paid any Additional Amounts. Copies of such documentation shall be made available to the Holders of the Notes or
the Paying Agent, as applicable, upon request therefor. 
  

 16 

 The Company shall pay all stamp, issue, registration, documentary or other similar duties, if any, which
may be imposed by Mexico or any governmental entity or political subdivision therein or thereof, or any taxing authority of or in any of the foregoing, with respect to the Indenture or the Ninth Supplemental Indenture or the issuance of the Notes.

 All references herein, in the Indenture, the Ninth Supplemental Indenture, the Notes or the Guarantees to principal or interest or any
other amount payable in respect of any Note shall be deemed to include all Additional Amounts, if any, payable in respect of such principal, interest or other amount payable, unless the context otherwise requires, and express mention of the payment
of Additional Amounts in any provision hereof shall not be construed as excluding reference to Additional Amounts in those provisions hereof where such express mention is not made. 
 In the event that Additional Amounts actually paid with respect to the Notes pursuant to the preceding paragraphs are based on rates of deduction or
withholding of withholding taxes in excess of the appropriate rate applicable to the Holder of such Notes, and, as a result thereof such Holder is entitled to make claim for a refund or credit of such excess from the authority imposing such
withholding tax, then such Holder shall, by accepting such Notes, be deemed to have assigned and transferred all right, title, and interest to any such claim for a refund or credit of such excess to the Company. However, by making such assignment,
the Holder makes no representation or warranty that the Company shall be entitled to receive such claim for a refund or credit and incurs no other obligation with respect thereto. 
 All references in the Indenture, the Ninth Supplemental Indenture, the Notes and the Guarantees to the Stated Maturity of the principal in respect of any
Note shall be deemed to mean and include the Redemption Date, and all such references to principal, interest or Additional Amounts shall be deemed to mean and include any amount payable in respect hereof pursuant to Section 1010 of the
Indenture. 
 The Notes are subject to redemption, upon not less than 30 nor more than 60 days’ notice by mail, at any time as a whole
but not in part, at the election of the Company, at a cash price equal to the sum of (A) the principal amount of the Notes being redeemed, (B) accrued and unpaid current interest thereon to but not including the date fixed for redemption,
and (C) any Additional Amounts which would otherwise be payable up to but not including the date fixed for redemption, if, as a result of any amendment to, or change in, the laws (or any laws, rules, or regulations thereunder) of Mexico or any
political subdivision or taxing authority thereof or therein affecting taxation or any amendment to or change in an official interpretation, administration or application of such laws, rules, or regulations (including a holding by a court of
competent jurisdiction), which amendment or change of such laws, rules, or regulations becomes effective after December 7, 2006, the Company would be obligated, after making reasonable endeavors to avoid such requirement, to pay Additional
Amounts in excess of the Additional Amounts that the Company would be obligated to pay if payments made on the Notes were subject to withholding or deduction of Mexican Taxes at the rate of 4.9%. 
 The Indenture, as supplemented by the Ninth Supplemental Indenture, permits, with certain exceptions as therein provided, the amendment thereof and the
modification of the rights and obligations of the Company and the Guarantor, on the one hand, and the rights of the Holders of the Notes, on the other hand, at any time by the Company, the Guarantor and the Trustee with the consent of the Holders of
a majority in principal amount of the Notes at the time Outstanding. The Indenture also contains provisions (i) permitting the Holders of a majority in principal amount of the Notes at the time Outstanding, on behalf of the Holders of all
Notes, to waive compliance by the Company with certain provisions of the Indenture, as supplemented by the Ninth Supplemental Indenture, and (ii) permitting the Holders of a majority in principal amount of the Notes at the time Outstanding, on
behalf of the Holders of all Notes, to waive certain past defaults under the Indenture, as supplemented by the Ninth 

  

 17 

 
Supplemental Indenture, and their consequences. Any such consent or waiver by the Holder of this Note shall be conclusive and binding upon such Holder and
upon all future Holders of this Note and of any Note issued upon the registration of transfer hereof or in exchange herefor or in lieu hereof, whether or not notation of such consent or waiver is made upon this Note. 
 As provided in and subject to the provisions of the Indenture, as supplemented by the Ninth Supplemental Indenture, the Holder of this Note shall not
have the right to institute any proceeding with respect to the Indenture or the Ninth Supplemental Indenture, or for the appointment of a receiver or trustee, or for any other remedy thereunder, unless such Holder shall have previously given the
Trustee written notice of a continuing Event of Default with respect to the Notes, the Holders of not less than 25% in principal amount of the Notes at the time Outstanding shall have made written request to the Trustee to institute proceedings in
respect of such Event of Default as Trustee and offered the Trustee indemnity reasonably satisfactory to it, and the Trustee shall not have received from the Holders of a majority in principal amount of Notes at the time Outstanding a direction
inconsistent with such request, and shall have failed to institute any such proceeding, for 60 days after receipt of such notice, request and offer of indemnity. The foregoing shall not apply to any suit instituted by the Holder of this Note for the
enforcement of any payment of principal hereof or any interest hereon on or after the respective due dates expressed herein. 
 No reference
herein to the Indenture or the Ninth Supplemental Indenture and no provision of this Note or of the Indenture or the Ninth Supplemental Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay the
principal of and any interest on this Note at the times, place and rate, and in the coin or currency, herein prescribed. 
 As provided in
the Indenture, as supplemented by the Ninth Supplemental Indenture and subject to certain limitations therein set forth (including, without limitation, the restrictions on transfer under Sections 208 and 211 of the Ninth Supplemental Indenture), the
transfer of this Note is registrable in the Security Register, upon surrender of this Note for registration of transfer at the office of the Trustee or agency of the Company in any place where the principal of and any interest on this Note are
payable, duly endorsed by, or accompanied by a written instrument of transfer in form satisfactory to the Company, the Guarantor and the Security Registrar duly executed by, the Holder thereof or his attorney duly authorized in writing, and
thereupon one or more new Notes of this series and of like tenor, of authorized denominations and for the same aggregate principal amount, shall be issued to the designated transferee or transferees. 
 The Notes are issuable only in registered form without coupons in denominations of Ps. 1,000,000 and integral multiples of Ps. 100,000 in excess thereof.
As provided in the Indenture, as supplemented by Ninth Supplemental Indenture, and subject to certain limitations therein set forth, Notes are exchangeable for a like aggregate principal amount of Notes of like tenor of a different authorized
denomination, as requested by the Holder surrendering the same. 
 No service charge shall be made for any such registration of transfer or
exchange, but the Company or the Trustee may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. 
 Prior to due presentment of this Note for registration of transfer, the Company, the Guarantor, the Trustee and any agent of the Company, the Guarantor or of the Trustee may treat the Person in whose name this Note is
registered as the owner hereof for all purposes, whether or not this Note is overdue, and neither the Company, the Guarantor, the Trustee nor any such agent shall be affected by notice to the contrary. 
  

 18 

 [If the Note is a Global Note, then insert — This Note is a Global Note and is subject to the
provisions of the Indenture and the Ninth Supplemental Indenture relating to Global Notes, including the limitations in Section 211 of the Ninth Supplemental Indenture on transfers and exchanges of Global Notes.] 
 This Note, the Guarantees and the Indenture and the Ninth Supplemental Indenture shall be governed by, and construed in accordance with, the laws of the
State of New York. 
 All terms used in this Note which are defined in the Indenture, as supplemented by the Ninth Supplemental Indenture,
shall have the meanings assigned to them in the Indenture, as supplemented by the Ninth Supplemental Indenture. 
 ABBREVIATIONS 

The following abbreviations, when used in the inscription of the face of this Note, shall be construed as though they were written out in full
according to applicable laws or regulations: 
  

									
	 TEN COM -
	 	as tenants in common	  	UNIF GIFT MIN ACT—	  	  
	  	
		 		  		  	(Cust)	  	
					
	TEN ENT -	 	as tenants by the entireties	  	Custodian	  	  
	  	under Uniform
		 		  		  	(Minor)	  	
					
	JT TEN -	 	as joint tenants with right of	  	Gifts to Minors Act	  	  
	  	
		 	survivorship and not as tenants in common	  		  	(State)	  	

 Additional abbreviations may also be used 
 though not in the above list. 
  

 (c) Form of Guarantee. 
 GUARANTEE

 OF 
 RADIOMÓVIL DIPSA,
S.A. DE C.V. 
 Radiomóvil Dipsa, S.A. de C.V., a corporation (sociedad anónima de capital variable) organized and
existing under the laws of Mexico (the “Guarantor”), hereby fully and unconditionally guarantees (such guarantee being referred to herein as the “Guarantee”), in accordance with the terms of the Indenture, dated as of
March 9, 2004, as supplemented by the Fifth Supplemental Indenture, dated as of December 14, 2004, and the Eighth Supplemental Indenture, dated as of September 29, 2006 (the “Indenture”, which term shall have the meaning
assigned to it in such instrument), and as further supplemented by the Ninth Supplemental Indenture, dated as of December 18, 2006 (the “Ninth Supplemental Indenture”), among América Móvil, S.A. de C.V., the Guarantor
and The Bank of New York (as successor to JPMorgan Chase Bank, N.A.), as Trustee, the full and punctual payment when due, whether at maturity, upon redemption, by acceleration or otherwise, of the principal of, interest on, and any other amounts due
under the Notes and all other obligations of the Company under the Indenture, as supplemented by the Ninth Supplemental Indenture, in each case in Dollars or, subject to the terms and 

  

 19 

 
conditions set forth in the Notes, Pesos pursuant to the terms and conditions of the Notes. Capitalized terms used but not defined herein shall have the
respective meanings given to them in the Indenture, as supplemented by the Ninth Supplemental Indenture. 
 The obligations of the Guarantor
to the Holders and to the Trustee pursuant to this Guarantee and the Indenture, as supplemented by the Ninth Supplemental Indenture, shall be limited to the maximum amount as shall, after giving effect to all other liabilities (fixed and contingent)
of the Guarantor, result in the obligations of the Guarantor under the Guarantees not constituting a fraudulent conveyance or fraudulent transfer under applicable law. 
 The obligations of the Guarantor to the Holders and to the Trustee pursuant to this Guarantee and the Indenture, as supplemented by the Ninth Supplemental Indenture, are expressly set forth, to the extent and in the
manner provided, in Article Eleven of the Indenture, as supplemented by the Ninth Supplemental Indenture, and reference is hereby made to the Indenture, as supplemented by the Ninth Supplemental Indenture, for the precise terms of the Guarantee
therein made. 
 This Guarantee shall not be valid or obligatory for any purpose until the certificate of authentication on the Notes upon
which this Guarantee is noted shall have been executed by the Trustee under the Indenture, as supplemented by the Ninth Supplemental Indenture, by the manual signature of one of its authorized signatories. 
 This Guarantee shall be governed by, and construed in accordance with, the laws of the State of New York. 
 This Guarantee is subject to release upon the terms set forth in the Indenture, as supplemented by the Ninth Supplemental Indenture. 
 IN WITNESS WHEREOF, the Guarantor has caused this Guarantee to be duly executed. 
  

			
	RADIOMÓVIL DIPSA, S.A. de C.V.,
		
	By:	 	  

	Name:	 	
	Title:	 	
		
	By:	 	  

	Name:	 	
	Title:	 	

 Section 209. Form of Trustee’s Certificate of Authentification 
 The Trustee’s certificate of authentification shall be in substantially the following form: 
 This is one of the Notes referred to in the within mentioned Indenture, as supplemented by the Ninth Supplemental Indenture. 
  

 20 

 Dated: 
  

			
	 The Bank of New York (as successor to
 JPMorgan Chase Bank, N.A.),
as Trustee

		
	By:	 	  

		 	Authorized Officer

 Section 210. Registration of Transfer and Exchange. 
 (a) Transfers and exchanges pursuant to Section 304 of the Base Indenture shall, with respect to the Notes (but not with respect to any other series
of Securities), be subject to the terms and conditions of Section 211 of this Ninth Supplemental Indenture. 
 (b) Clause (2) of
Section 304 of the Base Indenture is hereby amended and restated with respect to the Notes (but not with respect to any other series of Securities) as follows: 
 “(2) Notwithstanding any other provision in this Indenture or the Notes, no Global Notes may be exchanged in whole or in part for
Notes registered, and no transfer of a Global Note in whole or in part may be registered, in the name of any Person other than the Depositary or a nominee thereof unless (A) the Depositary has notified the Company that it is unwilling or unable
to continue as Depositary for such Global Security and a successor Depositary is not appointed within 90 days, (B) there shall have occurred and be continuing an Event of Default with respect to such Global Note or (C) a request for
certificates has been made by the Company upon 60 days’ prior written notice given to the Trustee in accordance with the Applicable Procedures and a copy of such notice has been received by the Company from the Trustee. Any Global Note
exchanged pursuant to Clause (A) above shall be so exchanged in whole and not in part and any Global Note exchanged pursuant to Clause (B) or (C) above may be exchanged in whole or from time to time in part as directed by the
Depositary. Any Note issued in exchange for a Global Note or any portion thereof shall be a Global Note, provided that any such Note so issued that is registered in the name of a Person other than the Depositary or a nominee thereof shall not
be a Global Note.” 
 (c) Clause (5) of Section 304 of the Base Indenture is hereby amended and restated with respect to the
Notes (but not with respect to any other series of Securities) as follows: 
 “(5) None of Clearstream Banking,
Société Anonyme (“Clearstream, Luxembourg”) or Euroclear Bank S.A./N.V. (“Euroclear”) or any members of, or participants in (“Agent Members”), Clearstream, Luxembourg or Euroclear, or any Person on whose
behalf Agent Members may act, shall have any rights under this Indenture with respect to any Global Note, or under any Global Note, and the Depositary or such nominee, as the case may be, may be treated by the Company, the Trustee and any agent of
the Company or the Trustee as the absolute owner and holder of such Global Note for all purposes whatsoever. Notwithstanding the foregoing, nothing herein shall prevent the Company, the Trustee or any agent of the Company or the Trustee from giving
effect to any written certification, proxy or other authorization furnished by the Depositary or such nominee, as the case may be, or impair, as between the Depositary, Clearstream, Luxembourg, Euroclear, their respective Agent Members and any other
person on whose behalf an Agent Member may act, the operation of customary practices of such Persons governing the exercise of the rights of a holder of any Note.” 
  

 21 

 Section 211. Transfers and Exchanges 
 (a) Restricted Notes. Restricted Notes shall be subject to the restrictions on transfer (the “Transfer Restrictions”) provided in the
applicable legend(s) (the “Restrictive Legends”) required to be set forth on the face of each Restricted Note pursuant to Section 208, unless compliance with the Transfer Restrictions shall be waived by the Company and the Guarantor
in writing delivered to the Trustee. 
 The Transfer Restrictions shall cease and terminate with respect to any particular Restricted Note
upon receipt by the Company and the Guarantor of evidence satisfactory to them (which may include an opinion of independent counsel experienced in matters of U.S. federal securities law) that, as of the date of determination, such Restricted Note
(a) has been transferred by the Holder thereof pursuant to Rule 144, (b) has been sold pursuant to an effective registration statement under the Securities Act, or (c) has been transferred (i) in a transaction satisfying all the
requirements of Rule 903 or 904 (as applicable) of Regulation S or (ii) pursuant to Rule 144A, and receipt by the Trustee of an Officer’s Certificate certifying that the Company and the Guarantor have received such evidence which may
include an opinion of counsel stating that the Transfer Restrictions have ceased and terminated with respect to such Note. All references in the preceding sentence to any regulation, rule or provision thereof shall be deemed also to refer to any
successor provisions thereof. In addition, the Company and the Guarantor may terminate the Transfer Restrictions with respect to any particular Restricted Note in such other circumstances as they determine are appropriate for this purpose and shall
deliver to the Trustee an opinion of counsel, if any, and Officer’s Certificate certifying that the Transfer Restrictions have ceased and terminated with respect to such Note. 
 At the request of the Holder and upon the surrender of such Restricted Notes, together with Guarantees of the Guarantor annexed thereto or endorsed
thereon, to the Trustee or Security Registrar for exchange in accordance with the provisions of this Section 211, any Restricted Note as to which the Transfer Restrictions shall have terminated in accordance with the preceding paragraph shall
be exchanged for a new Note of like aggregate principal amount, but without the Restrictive Legends. Any Restricted Note as to which the Restrictive Legends shall have been removed pursuant to this paragraph (and any Note issued upon registration of
transfer of, exchange for or in lieu of such Restricted Note) shall thereupon cease to be a “Restricted Note” for all purposes of this Ninth Supplemental Indenture. 
 The Company shall notify the Trustee in writing of the effective date of any registration statement registering any Restricted Notes under the Securities
Act and shall ensure that any opinion of counsel received by it in connection with the removal of any Restrictive Legend is also addressed to the Trustee. The Trustee shall not be liable for any action taken or omitted to be taken by it in good
faith and without negligence on its part in accordance with such notice or any opinion of counsel. 
 As used in this Section 211(a),
the term “transfer” encompasses any sale, pledge, transfer or other disposition of any Notes referred to herein. 
 (b)
Transfers Between Global Notes 
 (i) Restricted Global Note to Regulation S Global Note. If the owner of a
beneficial interest (an “Owner Transferor”) in a Restricted Global Note wishes at any time to transfer such beneficial interest to a Person (an “Owner Transferee”) who wishes to take delivery thereof in the form of a beneficial
interest in a Regulation S Global Note, such transfer may be effected, subject to the Applicable Procedures, only in accordance with the provisions of this Section 211(b)(i). 

  

 22 

 
Upon receipt by the Trustee, as Security Registrar, at the Corporate Trust Office of (1) written instructions given in accordance with the Applicable
Procedures from the Agent Member, whose account is to be debited (an “Agent Member Transferor”) with respect to the Restricted Global Note, directing the Trustee, as Security Registrar, to credit or cause to be credited to a specified
account of another Agent Member (an “Agent Member Transferee”) (which shall be an account of Euroclear or Clearstream, Luxembourg or both) a beneficial interest in a Regulation S Global Note in a principal amount equal to the beneficial
interest in the Restricted Global Note to be so transferred (the “Restricted Global Transferred Amount”), (2) a written order given in accordance with the Applicable Procedures containing information regarding the account of the Agent
Member Transferee to be credited with, and the Agent Member Transferor to be debited by, the Restricted Global Transferred Amount, and (3) a certificate in substantially the form set forth in Annex A hereto given by the Owner Transferor, the
Trustee, as Security Registrar, shall instruct the Depositary to reduce the principal amount of the Restricted Global Note, and to increase the principal amount of the Regulation S Global Note, by the Restricted Global Transferred Amount, and to
credit, or cause to be credited to, the account of the Agent Member Transferee a beneficial interest in the Regulation S Global Note, and to debit, or cause to be debited to, the account of the Agent Member Transferor a beneficial interest in the
Restricted Global Note, in each case having a principal amount equal to the Restricted Global Transferred Amount. 
 (ii)
Restricted Global Note to Unrestricted Global Note. If an Owner Transferor wishes at any time to transfer a beneficial interest in a Restricted Global Note to an Owner Transferee who wishes to take delivery thereof in the form of a beneficial
interest in an Unrestricted Global Note, such transfer may be effected, subject to the Applicable Procedures, only in accordance with this Section 211(b)(ii). Upon receipt by the Trustee, as Security Registrar, at the Corporate Trust Office of
(1) written instructions given in accordance with the Applicable Procedures from the Agent Member Transferor directing the Trustee, as Security Registrar, to credit or cause to be credited to a specified account of an Agent Member Transferee
(which may but need not be an account of Euroclear or Clearstream, Luxembourg or both) a beneficial interest in the Unrestricted Global Note in a principal amount equal to the Restricted Global Transferred Amount, (2) a written order given in
accordance with the Applicable Procedures containing information regarding the account of the Agent Member Transferee to be credited with, and the account of the Agent Member Transferor to be debited for, the Restricted Global Transferred Amount,
and (3) a certificate in substantially the form set forth in Annex B hereto given by the Owner Transferor, the Trustee, as Security Registrar, shall instruct the Depositary to reduce the principal amount of the Restricted Global Note, and to
increase the principal amount of the Unrestricted Global Note, by the Restricted Global Transferred Amount, and to credit, or cause to be credited to, the account of the Agent Member Transferee a beneficial interest in the Unrestricted Global Note,
and to debit, or cause to be debited to, the account of the Agent Member Transferor a beneficial interest in the Restricted Global Note, in each case having a principal amount equal to the Restricted Global Transferred Amount. 
 (iii) Regulation S Global Note or Unrestricted Global Note to Restricted Global Note. If an Owner Transferor wishes at any time to
transfer a beneficial interest in a Regulation S Global Note or an Unrestricted Global Note to an Owner Transferee who wishes to take delivery thereof in the form of a beneficial interest in a Restricted Global Note, such transfer may be effected,
subject to the Applicable Procedures, only in accordance with this Section 211(b)(iii). Upon receipt by the Trustee, as Security Registrar, at the Corporate Trust Office of (1) written instructions given in accordance with the Applicable
Procedures from the Agent Member Transferor, directing the Trustee, as Security Registrar, to credit, or cause to be credited to, a specified account of an Agent Member Transferee a beneficial interest in the Restricted Global Note in a principal
amount equal to that of the beneficial interest in the Regulation S Global Note 

  

 23 

 
or Unrestricted Global Note to be so transferred, (2) a written order given in accordance with the Applicable Procedures containing information
regarding the account of the Agent Member Transferee to be credited with, and the account of the Agent Member Transferor (which, in the case of a beneficial interest in the Regulation S Global Note, must be an account of Euroclear or Clearstream,
Luxembourg or both) to be debited for, such beneficial interest, and (3) with respect to a transfer of a beneficial interest in the Regulation S Global Note (but not the Unrestricted Global Note), a certificate in substantially the form set
forth in Annex C hereto given by the Owner Transferor, the Trustee, as Security Registrar, shall instruct the Depositary to reduce the principal amount of the Regulation S Global Note or Unrestricted Global Note, as the case may be, and increase the
principal amount of the Restricted Global Note, by the principal amount of the beneficial interest in the Regulation S Global Note or Unrestricted Global Note to be so transferred, and to credit, or cause to be credited to, the account of the Agent
Member Transferee such beneficial interest in the Restricted Global Note, and to debit, or cause to be debited to, the account of the Agent Member Transferor such beneficial interest in the Regulation S Global Note or Unrestricted Global Note, as
the case may be. 
 (c) In case of any transfer or exchange the procedures and requirements for which are not addressed in detail in this
Section 211, such transfer or exchange shall be subject to such procedures and requirements as may be reasonably prescribed by the Company, the Guarantor and the Trustee from time to time and, in the case of a transfer or exchange invoking a
Global Note, the Applicable Procedures. 
 (d) Notwithstanding the foregoing, during the period of two years after the Closing Date (as
defined in the Purchase Agreement), the Company and the Guarantor shall not, and shall not permit any of their Affiliates that are Subsidiaries to, purchase or agree to purchase or otherwise acquire any Restricted Notes, whether as beneficial owner
or otherwise (except as agent on behalf of and for the account of customers in the ordinary course of business as a securities broker in unsolicited broker’s transactions) unless, immediately upon any such purchase, the Company, the Guarantor
or any such Affiliate shall submit such Restricted Notes to the Trustee for cancellation. The Company and the Guarantor further agree to ask their Affiliates that are not Subsidiaries to agree not to purchase or otherwise acquire any Restricted
Notes, whether as beneficial owner or otherwise, except as permitted in the preceding sentence. 
 Section 212. ISIN Numbers. 
 (a) Section 310 of the Base Indenture is hereby amended and restated with respect to the Notes (but not with respect to any other series of
Securities) as follows: 
 “The Company, in issuing the Notes, may use an “ISIN” number, and, if so, the
Trustee shall use an “ISIN” number in notices of redemption as a convenience to Holders; provided that any such notice may state that no representation is made as to the correctness of such number either as printed on the Notes or
as contained in any notice of a redemption and that reliance may be placed only on the other identification numbers printed on the Notes, and any such redemption shall not be affected by any defect in or omission of such number. The Company shall
promptly notify the Trustee in writing of any change in the “ISIN” number. The Company may also use a “Common Code” number.” 
 (b) Clause (5) of Section 1202 of the Base Indenture is hereby amended and restated with respect to the Notes (but not with respect to any other series of Securities) as “(5) applicable “ISIN”
number”. 
  

 24 

 Section 213. Defeasance. 
 (a) Clause (a) of Section 1304 of the Base Indenture is hereby amended and restated with respect to the Notes (but not with respect to any other series of Securities) as follows: 
 “The Company shall irrevocably have deposited or caused to be deposited with the Trustee (or another trustee satisfying the
requirements of Section 609 who shall agree to comply with the provisions of this Article Thirteen applicable to it) as trust funds in trust for the purpose of making the following payments, specifically pledged as security for, and dedicated
solely to, the benefit of the Holders of the Notes, an amount in Pesos sufficient, in the opinion of a nationally recognized firm of independent public accountants expressed in a written certification thereof delivered to the Trustee, to pay and
discharge, and which shall be applied by the Trustee (or other qualifying trustee) to pay and discharge, the principal of and each installment of interest on the Outstanding Notes on the Stated Maturity of such principal or interest (including,
without limitation, any additional Amounts or other amounts due in respect of the Notes) in accordance with the terms of this Indenture and of the Notes. Before such a deposit, the Company may make arrangements satisfactory to the Trustee for the
redemption of the Notes at a future date in accordance with any redemption provisions relating to the Notes, which shall be given effect in applying the foregoing.” 
 (b) Section 1305 of the Base Indenture is hereby amended and restated with respect to the Notes (but not with respect to any other series of Securities) as follows: 
 “Subject to the provisions of the last two paragraphs of Section 1003, all money deposited with the Trustee (or other qualifying
trustee, collectively, for purposes of this Section 1305, the “Trustee”) pursuant to Section 1304 in respect of the Outstanding Notes shall be held in trust and applied by the Trustee, in accordance with the provisions of the
Notes and this Indenture, to the payment, either directly or through any Paying Agent (but not including the Company acting as its own Paying Agent) as the Trustee may determine, to the Holders of the Notes, of all sums due and to become due thereon
in respect of principal and interest (including, without limitation, any Additional Amounts or other amounts due in respect of the Notes), but such money need not be segregated from other funds except to the extent required by law. 
 Anything in this Article Thirteen to the contrary notwithstanding, the Trustee shall deliver or pay to the Company from time to time upon
Company Request any money held by it as provided in Section 1304 which, in the opinion of a nationally recognized firm of independent public accountants expressed in a written certification thereof delivered to the Trustee, are in excess of the
amount thereof which would then be required to be deposited to effect an equivalent defeasance or covenant defeasance.” 
 (c)
Section 1306 of the Base Indenture is hereby amended and restated with respect to the Notes (but not with respect to any other series of Securities) as follows: 
 “If the Trustee or any Paying Agent is unable to apply any money in accordance with Section 1304 by reason of any legal
proceeding or by reason of any order or judgment of any court or governmental authority enjoining, restraining or otherwise prohibiting such application, the Company’s or the Guarantor’s obligations under this Indenture and the Notes and
the Guarantees shall be revived and reinstated as though no deposit had occurred pursuant to Section 1304, until such time as the Trustee or such Paying Agent is permitted to apply all such money in accordance with Section 1304;
provided that, if either the Company or the Guarantor has made any payment of principal of or interest on the Notes and the Guarantees because of the 

  

 25 

 
reinstatement of its obligations, the Company or the Guarantor, as the case may be, shall be subrogated to the rights of the Holders of the Notes and the
Guarantees to receive such payment from the money held by the Trustee or such Paying Agent.” 
 Section 214. Supplemental Indentures with
Consent of Holders 
 Clause (1) of Section 902 of the Base Indenture is hereby amended and restated with respect to the Notes
(but not with respect to any other series of Securities) as follows: 
 “(1) change the Stated Maturity of the principal
of, or any installment of principal of or interest on, any Note, or reduce the principal amount thereof or the rate of interest thereon, or reduce the amount of the principal of any Note that would be due and payable upon a declaration of
acceleration of the Maturity thereof pursuant to Section 502 of the Indenture, or modify in any way the Company’s obligation to pay Additional Amounts pursuant to Section 1009 of the Indenture or change any Place of Payment where, or
the coin or currency in which, any Note or any interest thereon is payable, or change the method for determining payments of principal, interest, Additional Amounts and other amounts in respect of the Notes, or impair the right to institute suit for
the enforcement of any such payment on or after the Stated Maturity thereof (or, in the case of redemption, on or after the Redemption Date), or change the terms and conditions of the obligations of the Guarantor under the Guarantees to make due and
punctual payment of the principal or interest in respect of the Notes, or” 
 Section 215. Maintenance of Office or Agency 
 (a) With respect to any Notes that are not in the form of a Global Note, the Company shall maintain in the Borough of Manhattan, New York an office or
agency, in each case, in accordance with Section 1002 of the Base Indenture. 
 (b) If and for so long as the Notes are listed on the
Luxembourg Stock Exchange and trading on the EuroMTF, the alternative market of the Luxembourg Stock Exchange (the “EuroMTF”), the Company shall maintain pursuant to Section 1002 of the Base Indenture an office or agency in Luxembourg
where the Notes may be presented or surrendered for payment, where the Notes may be surrendered for registration of transfer or exchange and where notices and demands to or upon the Company in respect of the Notes and the Base Indenture, as
supplemented by this Ninth Supplemental Indenture, may be served. The Company has initially appointed The Bank of New York (Luxembourg) S.A. as the Paying Agent and the agent for such transfers and exchanges and for such notices and demands in
Luxembourg with respect to the Notes. The Bank of New York (Luxembourg) S.A. has its main offices at Aerogolf Center, 1A Hoehenhof, L- 1736 Senningerberg, Luxembourg. 
 If for any reason The Bank of New York (Luxembourg) S.A. shall not continue as the Paying Agent or agent for such transfers and exchanges and for such notices and demands in Luxembourg with respect to the Notes and
the Notes remain listed on the Luxembourg Stock Exchange for trading on the EuroMTF, the Company shall appoint a substitute Paying Agent or agent in Luxembourg, in accordance with the rules then in effect of the Luxembourg Stock Exchange and the
provisions of the Base Indenture, as supplemented by this Ninth Supplemental Indenture, and the Notes. Following the appointment of a substitute Paying Agent or agent in Luxembourg, the Company shall give the Holders of the Notes notice of such
appointment pursuant to Section 105 of the Base Indenture. 
  

 26 

 Section 216. EuroMTF Listing 
 The Company shall use its reasonable best efforts to have the Notes admitted to listing on the Official List of the Luxembourg Stock Exchange and trading on the EuroMTF. 
 ARTICLE THREE 
 MISCELLANEOUS
PROVISIONS 
 Section 301. Separability of Invalid Provisions 
 In case any one or more of the provisions contained in this Ninth Supplemental Indenture should be invalid, illegal or unenforceable in any respect, such invalidity, illegality or unenforceability shall not affect any
other provisions contained in this Ninth Supplemental Indenture, and to the extent and only to the extent that any such provision is invalid, illegal or unenforceable, this Ninth Supplemental Indenture shall be construed as if such provision had
never been contained herein. 
 Section 302. Execution in Counterparts 
 This Ninth Supplemental Indenture may be simultaneously executed and delivered in any number of counterparts, each of which when so executed and delivered
shall be deemed to be an original, and such counterparts shall together constitute but one and the same instrument. 
 Section 303. Certain
Matters 
 The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Ninth
Supplemental Indenture or for or in respect of the recitals contained herein, all of which are made solely by the Company and the Guarantor. 
  

 27 

 IN WITNESS WHEREOF, the parties hereto have caused this Ninth Supplemental Indenture to be duly executed
on their respective behalves, all as of the day and year first written above. 
  

			
	 AMÉRICA MÓVIL, S.A. DE C.V.,
as Issuer

		
	By:	 	  

	Name:	 	
	Title:	 	
		
	By:	 	  

	Name:	 	
	Title:	 	

  

			
	 RADIOMÓVIL DIPSA, S.A. DE C.V.,
as Guarantor

		
	By:	 	  

	Name:	 	
	Title:	 	
		
	By:	 	  

	Name:	 	
	Title:	 	

  

			
	THE BANK OF NEW YORK (AS SUCCESSOR TO JPMORGAN CHASE BANK, N.A.),
	 as Trustee, Principal Paying Agent and
Calculation Agent

		
	 By:
	 	 

	Name:	 	KAREN FERRY
	Title:	 	VICE PRESIDENT

  

			
	THE BANK OF NEW YORK (LUXEMBOURG) S.A.
		 	as Luxembourg Paying Agent
		
	By:	 	  

	Name:	 	
	Title:	 	

 IN WITNESS WHEREOF, the parties hereto have caused this Ninth Supplemental Indenture to be duly executed
on their respective behalves, all as of the day and year first written above. 
  

			
	 AMÉRICA MÓVIL, S.A. DE C.V.,
as Issuer

		
	 By:
	 	 

	Name:	 	Carlos José Garcia Moreno Elizondo
	Title:	 	Attorney-in-fact
		
	 By:
	 	 

	Name:	 	Alejandro Cantú Jiménez
	Title:	 	Attorney-in-fact

  

			
	 RADIOMÓVIL DIPSA, S.A. DE C.V.,
as Guarantor

		
	By:	 	 

	Name:	 	Daniel Hajj Aboumrad
	Title:	 	Attorney-in-fact
		
	By:	 	 

	Name:	 	Alejandro Cantú Jiménez
	Title:	 	Attorney-in-fact

  

			
	 THE BANK OF NEW YORK (AS
 SUCCESSOR-IN-INTEREST TO JPMORGAN CHASE BANK),

		 	as Trustee, Principal Paying Agent and Calculation Agent
		
	By:	 	  

	Name:	 	
	Title:	 	
	
	THE BANK OF NEW YORK (LUXEMBOURG) S.A.
		 	as Luxembourg Paying Agent
		
	By:	 	  

	Name:	 	
	Title:	 	

 IN WITNESS WHEREOF, the parties hereto have caused this Ninth Supplemental Indenture to be duly executed
on their respective behalves, all as of the day and year first written above. 
  

			
	 AMÉRICA MÓVIL, S.A. DE C.V.,
as Issuer

		
	By:	 	  

	Name:	 	
	Title:	 	
		
	By:	 	  

	Name:	 	
	Title:	 	
	
	 RADIOMÓVIL DIPSA, S.A. DE C.V.,
as Guarantor

		
	By:	 	  

	Name:	 	
	Title:	 	
		
	By:	 	  

	Name:	 	
	Title:	 	
	
	THE BANK OF NEW YORK (AS SUCCESSOR TO JPMORGAN CHASE BANK, N.A.),
		 	as Trustee, Principal Paying Agent and Calculation Agent
		
	By:	 	  

	Name:	 	
	Title:	 	

  

					
	THE BANK OF NEW YORK (LUXEMBOURG) S.A.
		 	as Luxembourg Paying Agent and Listing Agent
		
	By:	 	 

	Name:	 	Peter Bun	 	    Murielle Antoine
	Title:	 	Assistant Vice-President	 	    Vice-President
			
		 		 	

 FORM OF TRANSFER CERTIFICATE 
 FOR TRANSFER FROM RESTRICTED GLOBAL 
 NOTE TO REGULATION S GLOBAL NOTE 

 (Transfers pursuant to § 210(b)(i) 
 of the Supplemental Indenture) 
 The Bank of New York 
 (as successor to JPMorgan Chase Bank, N.A.), 
     as Trustee 
  

	 	Re:	8.46% Senior Notes due 2036 of 

 América
Móvil, S.A. de C.V. (the “Notes”) 
 Reference is hereby made to the Ninth Supplemental Indenture, dated as of
December 18, 2006 (the “Supplemental Indenture”), among América Móvil, S.A. de C.V., as Issuer, Radiomóvil Dipsa, S.A. de C.V., as Guarantor, and The Bank of New York (as successor to JPMorgan Chase Bank, N.A.),
as Trustee. Capitalized terms used but not defined herein shall have the meanings given to them in the Supplemental Indenture. 
 This letter
relates to Ps.                      principal amount of Notes which are evidenced by one or more Restricted Global Notes (ISIN No.
                    ; Common Code No.
                    ) and held with the Depositary in the name of [INSERT NAME OF TRANSFEROR] (the “Transferor”). The Transferor has
requested a transfer of such beneficial interest in the Notes to a person who shall take delivery thereof in the form of an equal principal amount of Notes evidenced by one or more Regulation S Global Notes (ISIN No:
                    ; Common Code No.
                    ). 
 In
connection with such request and in respect of such Notes, the Transferor does hereby certify that such transfer has been effected pursuant to and in accordance with Rule 903 or Rule 904 (as applicable) under the Securities Act or Rule 144, and
accordingly the Transferor does hereby further certify that: 
 (i) If the transfer is being effected pursuant to Rule 903 and Rule 904:

  

	 	(1)	the offer of the Notes was not made to a person in the United States; 

  

	 	(2)	either: 

  

	 	(A)	at the time the buy order was originated, the transferee was outside the United States or the Transferor and any person acting on its behalf reasonably believed that the transferee
was outside the United States, or 

  

	 	(B)	the transaction was executed in, on or through the facilities of a designated offshore securities market and neither the Transferor nor any person acting on its behalf knows that
the transaction was pre-arranged with a buyer in the United States; 

  

	 	(3)	no directed selling efforts have been made in contravention of the requirements of Rule 903(b) or 904(b) of Regulation S, as applicable; 

  

 A-1 

	 	(4)	the transaction is not part of a plan or scheme to evade the registration requirements of the Securities Act; and 

  

	 	(5)	upon completion of the transaction, the beneficial interest being transferred as described above is to be held through Euroclear or Clearstream, Luxembourg or both.

 (ii) If the transfer is being effected pursuant to Rule 144, the Notes are being transferred in a transaction permitted by
Rule 144. 
 This certificate and the statements contained herein are made for your benefit and the benefit of the Company, the Guarantor and
the underwriters or initial purchasers, if any, of the initial offering of such Notes being transferred. Terms used in this certificate and not otherwise defined in the Supplemental Indenture have the meanings set forth in Regulation S or Rule 144.

  

			
	[Insert Name of Transferor]
		
	By:	 	  

	Name:	 	
	Title:	 	

 Dated 
  

			
	cc:	  	América Móvil, S.A. de C.V.
		  	Radiomóvil Dipsa, S.A. de C.V.

  

 A-2 

 ANNEX B 
 FORM OF TRANSFER CERTIFICATE 
 FOR TRANSFER FROM RESTRICTED GLOBAL 
 NOTE TO UNRESTRICTED GLOBAL NOTE 
 (Transfers Pursuant to § 210(b)(ii) 
 of the Supplemental Indenture) 
 The Bank of New York 
 (as successor to JPMorgan Chase Bank, N.A.),

     as Trustee 
  

	 	Re:	8.46% Senior Notes due 2036 of 

 América
Móvil, S.A. de C.V. (the “Notes”) 
 Reference is hereby made to the Ninth Supplemental Indenture, dated as of
December 18, 2006 (the “Supplemental Indenture”), among América Móvil, S.A. de C.V., as Issuer, Radiomóvil Dipsa, S.A. de C.V., as Guarantor, and The Bank of New York (as successor to JPMorgan Chase Bank, N.A.),
as Trustee. Capitalized terms used but not defined herein shall have the meanings given to them in the Supplemental Indenture. 
 This letter
relates to Ps.                      principal amount of Notes which are evidenced by one or more Regulation S Global Notes (ISIN No.
                    ; Common Code No.
                    ) and held with the Depositary in the name of [INSERT NAME OF TRANSFEROR] (the “Transferor”). The Transferor has
requested a transfer of such beneficial interest in the Notes to a person that shall take delivery thereof in the form of an equal principal amount of Notes evidenced by one or more Unrestricted Global Notes (ISIN No.
                    ; Common Code No.
                    ). 
 In
connection with such request and in respect of such Notes, the Transferor does hereby certify that such transfer has been effected pursuant to and in accordance with either (i) Rule 903 or Rule 904 (as applicable) under the Securities Act, or
(ii) Rule 144, and accordingly the Transferor does hereby further certify that: 
  

	 	(i)	If the transfer has been effected pursuant to Rule 903 and Rule 904: 

  

	 	(1)	the offer of the Notes was not made to a person in the United States; 

  

	 	(2)	either: 

  

	 	(A)	at the time the buy order was originated, the transferee was outside the United States or the Transferor and any person acting on its behalf reasonably believed that the transferee
was outside the United States, or 

  

	 	(B)	the transaction was executed in, on or through the facilities of a designated offshore securities market and neither the Transferor nor any person acting on its behalf knows that
the transaction was prearranged with a buyer in the United States; 

  

	 	(3)	no directed selling efforts have been made in contravention of the requirements of Rule 903(b) or 904(b) of Regulation S, as applicable; and 

  

 B-1 

	 	(4)	the transaction is not part of a plan or scheme to evade the registration requirements of the Securities Act. 

  

	 	(ii)	If the transfer has been effected pursuant to Rule 144, the Notes have been transferred in a transaction permitted by Rule 144. 

 This certificate and the statements contained herein are made for your benefit and the benefit of the Company, the Guarantor and the underwriters or
initial purchasers, if any, of the Notes being transferred. Terms used in this certificate and not otherwise defined in the Supplemental Indenture have the meanings set forth in Regulation S under the Securities Act. 
  

			
	 [Insert Name of Transferor]

		
	By:	 	  

	Name:	 	
	Title:	 	

 Dated: 
  

			
	cc:	  	América Móvil, S.A. de C.V.
		  	Radiomóvil Dipsa, S.A. de C.V.

  

 B-2 

 ANNEX C 
 FORM OF TRANSFER CERTIFICATES 
 FOR TRANSFER FROM REGULATION S GLOBAL 
 NOTE OR UNRESTRICTED GLOBAL NOTE 
 TO
RESTRICTED GLOBAL NOTE 
 (Transfers Pursuant to § 210(b)(iii) 
 of the Supplemental Indenture) 
 [Transferor Certificate] 
 The Bank of New York 
 (as successor to JPMorgan Chase Bank, N.A),

     as Trustee 
  

	 	Re:	8.46% Senior Notes due 2036 of 

 América
Móvil, S.A. de C.V. (the “Notes”) 
 Reference is hereby made to the Ninth Supplemental Indenture, dated as of
December 18, 2006 (the “Supplemental Indenture”), among América Móvil, S.A. de C.V., as Issuer, Radiomóvil Dipsa, S.A. de C.V., as Guarantor, and The Bank of New York (as successor to JPMorgan Chase Bank, N.A.),
as Trustee. Capitalized terms used but not defined herein shall have the meanings given to them in the Supplemental Indenture. 
 This letter
relates to Ps.                      principal amount of Notes which are evidenced by one or more Regulation S Global Notes (ISIN No.
                    ; Common Code No.
                    ) and held with the Depositary in the name of [INSERT NAME OF TRANSFEROR] (the “Transferor”). The Transferor has
requested a transfer of such beneficial interest in the Notes to a person that shall take delivery thereof (the “Transferee”) in the form of an equal principal amount of Notes evidenced by one or more Restricted Global Notes (ISIN No.
                    ; Common Code No.
                    ). 
 In
connection with such request and in respect of such Notes, the Transferor does hereby certify that: 
 (1) such transfer is being effected in
accordance with all applicable securities laws of any state of the United States or any other jurisdiction; 
 (2) the Notes are being
transferred in accordance with Rule 144A to a transferee whom the Transferor reasonably believes is a qualified institutional buyer within the meaning of Rule 144A and is purchasing the Notes for its own account or any account with respect to which
the transferee exercises sole investment discretion, in each case in a transaction meeting the requirements of Rule 144A; and 
 (3) it has
notified the transferee that it has relied on Rule 144A as a basis for the exemption from the registration requirements of the Securities Act used in connection with the transfer. 
  

 C-1 

 This certificate and the statements contained herein are made for your benefit and the benefit of the
Company, the Guarantor and the underwriters and initial purchasers, if any, of the Notes being transferred. 
  

			
	[Insert Name of Transferor]
		
	By:	 	  

	Name:	 	
	Title:	 	

 Dated 
  

			
	cc:	  	América Móvil, S.A. de C.V.
		  	Radiomóvil Dipsa, S.A. de C.V.

  

 C-2Registration Rights Agreement dated as of December 18, 2006

 Exhibit 4.3 
 EXECUTION COPY 
  

 REGISTRATION RIGHTS AGREEMENT 
 Dated as of December 18, 2006 
 among 
 AMÉRICA MÓVIL, S.A. de
C.V., 
 RADIOMÓVIL DIPSA, S.A. de C.V. 
 and 
 HSBC SECURITIES (USA) INC. 
 and 
 UBS SECURITIES LLC, 
 as Representatives of the Initial Purchasers 
  

  

 1 

 REGISTRATION RIGHTS AGREEMENT dated as of December 18, 2006 (the “Agreement”) is
entered into by and among América Móvil, S.A. de C.V. (the “Company”), a sociedad anónima de capital variable organized under the laws of the United Mexican States (“Mexico”),
Radiomóvil Dipsa, S.A. de C.V. (the “Guarantor”), a sociedad anónima de capital variable, organized under the laws of Mexico, and HSBC Securities (USA) Inc. and UBS Securities LLC, as representatives (the
“Representatives”), of the initial purchasers named in Schedule I to the Purchase Agreement referred to below (the “Initial Purchasers”). 
 The Company, the Guarantor and the Representatives are parties to the Purchase Agreement dated December 7, 2006 (the “Purchase
Agreement”), which provides for the sale by the Company to the Initial Purchasers of Ps.8,000,000,000 aggregate principal amount of the 8.46% Senior Notes Due 2036 (the “Notes”). The Notes will be guaranteed as to the
payment of principal, premium, if any, interest and other amounts pursuant to the Indenture (as defined below) by the Guarantor (the “Guarantees”). As an inducement to the Initial Purchasers to enter into the Purchase Agreement, the
Company and the Guarantor have agreed to provide to the Initial Purchasers and their direct and indirect transferees the registration rights set forth in this Agreement. The execution and delivery of this Agreement is a condition to the closing
under the Purchase Agreement. 
 In consideration of the foregoing, the parties hereto agree as follows: 
 1. Definitions. As used in this Agreement, the following terms shall have the following meanings: 
 “Business Day” means any day that is not a Saturday, Sunday or other day on which commercial banks in New York City or
Mexico City are authorized or required by law, regulation or executive order to remain closed. 
 “Closing
Date” shall have the meaning set forth in the Purchase Agreement. 
 “CNBV” means the Mexican
Comisión Nacional Bancaria y de Valores (National Banking and Securities Commission). 
 “Company” shall have the meaning set forth in the preamble and shall also include the Company’s successors. 
 “EuroMTF” means the EuroMTF, the alternative market of the Luxembourg Stock Exchange. 
 “Exchange Act” means the U.S. Securities Exchange Act of 1934, as amended. 
 “Exchange Dates” shall have the meaning set forth in Section 2(a)(ii) hereof. 
  

 2 

 “Exchange Offer” means the exchange offer by the Company and the
Guarantor of Exchange Notes for Registrable Notes pursuant to Section 2(a) hereof. 
 “Exchange Offer
Registration” means a registration under the Securities Act effected pursuant to Section 2(a) hereof. 
 “Exchange Offer Registration Statement” means an exchange offer registration statement on Form F-4 (or, if applicable, on another appropriate form) and all amendments and supplements to such registration statement, in each
case including the Prospectus contained therein, all exhibits thereto and any document incorporated by reference therein. 
 “Exchange Notes” means 8.46% Senior Notes Due 2036 issued by the Company under the Indenture containing terms substantially identical to the Notes (except that (i) interest thereon shall accrue from the last date to
which interest has been paid or duly provided for on the Notes or, if no such interest has been paid or duly provided for, from the Closing Date, (ii) the transfer restrictions and legends relating to restrictions on ownership and transfer
thereof as a result of the issuance of the Notes without registration under the Securities Act shall be eliminated, and (iii) the 8.46% Senior Notes Due 2036 shall be represented by one or more global Exchange Notes in book-entry form unless
exchanged for Exchange Notes in definitive certificated form under the limited circumstances provided in the Indenture) to be offered to Holders of Registrable Notes in exchange for Registrable Notes pursuant to the Exchange Offer. 
 “Free Writing Prospectus” means each free writing prospectus (as defined in Rule 405 under the Securities Act) prepared
by or on behalf of the Company or used or referred to by the Company in connection with the offer or sale of the Notes or the Exchange Notes. 
 “Guarantee” shall have the meaning set forth in the preamble to this Agreement. 
 “Guarantor” shall have the meaning set forth in the preamble and shall also include Guarantor’s successors. 
 “Holder” means any of the Initial Purchasers, for so long as it owns any Registrable Notes, and each of its successors, assigns and direct and indirect transferees who become owners of Registrable
Notes under the Indenture; provided that for purposes of Sections 4 and 5 of this Agreement, the term “Holders” shall include Participating Broker-Dealers. 
 “Initial Purchasers” shall have the meaning set forth in the preamble. 
  

 3 

 “Indenture” means collectively (i) the Indenture dated as of
March 9, 2004 among the Company, the Guarantor and J.P. Morgan Chase Bank, as trustee, as supplemented by the Fifth Supplemental Indenture, dated as of December 14, 2004, and the Eighth Supplemental Indenture, dated as of
September 29, 2006, and as further supplemented by the Ninth Supplemental Indenture dated as of December 18, 2006 among the Company, the Guarantor and The Bank of New York (as successor to J.P. Morgan Chase Bank, N.A.), as trustee,
relating to the Notes, in each case, as amended from time to time in accordance with the terms thereof. 
 “Issuer
Information” shall have the meaning set forth in Section 5(a) hereof. 
 “Majority Holders”
means the Holders of a majority of the aggregate principal amount of outstanding Registrable Notes; provided that, whenever the consent or approval of Holders of a specified percentage of Registrable Notes is required hereunder, Registrable
Notes or Exchange Notes owned directly or indirectly by the Company or any of its affiliates (as such term is defined in Rule 405 under the 1933 Act) shall not be counted in determining whether such consent or approval was given by the Holders of
such required percentage or amount. 
 “Participating Broker-Dealers” shall have the meaning set forth in
Section 4(a) hereof. 
 “Person” means an individual, partnership, limited liability company,
corporation, trust or unincorporated organization, or a government or agency or political subdivision thereof. 
 “Prospectus” means the prospectus included in a Registration Statement, including any preliminary prospectus, and any such prospectus as amended or supplemented by any prospectus supplement, including a prospectus
supplement with respect to the terms of the offering of any portion of the Registrable Notes covered by a Shelf Registration Statement, and by all other amendments and supplements to such prospectus, and in each case including any document
incorporated by reference therein. 
 “Purchase Agreement” shall have the meaning set forth in the preamble.

 “Registrable Notes” means all of the Notes; provided that the Notes shall cease to be Registrable
Notes when (i) a Registration Statement with respect to such Notes shall have become effective under the Securities Act and such Notes shall have been disposed of pursuant to such Registration Statement, (ii) such Notes shall have been
sold pursuant to Rule 144 (or any similar provision then in force, but not Rule 144A) under the Securities Act, (iii) such Notes shall have 

  

 4 

 
ceased to be outstanding, (iv) such Notes have been exchanged for Exchange Notes which have been registered pursuant to the Exchange Offer Registration
Statement upon consummation of the Exchange Offer unless, in the case of any Exchange Notes referred to in this clause (iv), such Exchange Notes are held by a Participating Broker-Dealer or otherwise are not freely tradable without any limitations
or restrictions under the Securities Act (in which case such Exchange Notes will be deemed to be Registrable Notes until the earlier of (A) the expiration of the period specified in Section 4(b) hereof and (B) such time as such
Exchange Notes are sold to a purchaser in whose hands such Exchange Notes are freely tradeable without any limitations or restrictions under the Securities Act) or (v) such Notes are eligible to be sold pursuant to Rule 144(k). 
 “Registration Expenses” means any expenses and costs incident to performance of or compliance by the Company and the
Guarantor with this Agreement, including without limitation: (i) all SEC or National Association of Securities Dealers, Inc. registration and filing fees, (ii) all fees and expenses incurred in connection with compliance with state
securities or blue sky laws in jurisdictions designated pursuant to Section 3(e) hereof (including reasonable and documented fees and disbursements of counsel for any Underwriters or Holders in connection with blue sky qualification of any
Exchange Notes or Registrable Notes), (iii) all expenses of any Persons in preparing or assisting in preparing, word processing, printing and distributing any Registration Statement, any Prospectus, any Free Writing Prospectus and any
amendments or supplements thereto, any underwriting agreements, securities sales agreements or other similar agreements and any other documents relating to the performance of and compliance with this Agreement, (iv) any rating agency fees,
(v) all fees and disbursements relating to the qualification of the Indenture under applicable securities laws, (vi) the fees and disbursements of the Trustee and its counsel, (vii) the fees and disbursements of U.S. and Mexican and
other counsel to the Company and Guarantor, and, in the case of a Shelf Registration Statement, the reasonable and documented fees and expenses of one U.S. counsel and, if applicable, one Mexican counsel, for the Holders, the Underwriters and the
Initial Purchasers (which counsel shall be Simpson Thacher & Bartlett LLP and Mijares, Angoitia, Cortés y Fuentes, S.C. or such other counsel as may be selected by the Majority Holders and which counsel may also be counsel for the
Initial Purchasers), (viii) all fees relating to the listing of Exchange Notes or Registrable Notes on the Luxembourg Stock Exchange for trading on the EuroMTF, (ix) the fees and disbursements of the independent public accountants of the
Company and the Guarantor; however, the term “Registration Expenses” shall exclude fees and expenses of counsel for the Underwriters (other than fees and expenses set forth in clauses (ii) and (vii) above) or the Holders and
underwriting discounts and commissions and transfer taxes, if any, relating to the sale or disposition of Registrable Notes by a Holder. 
  

 5 

 “Registration Statement” means any registration statement of the Company
and the Guarantor that covers any of the Exchange Notes or Registrable Notes pursuant to the provisions of this Agreement and all amendments and supplements to any such registration statement, including post-effective amendments, in each case
including the Prospectus contained therein, all exhibits thereto and any document incorporated by reference therein. 
 “SEC” means the U.S. Securities and Exchange Commission. 
 “Securities Act” means
the U.S. Securities Act of 1933, as amended from time to time. 
 “Shelf Effectiveness Period” shall have the
meaning set forth in Section 2(b) hereof. 
 “Shelf Registration” means a registration effected pursuant
to Section 2(b) hereof. 
 “Shelf Registration Statement” means a “shelf” registration
statement of the Company and the Guarantor that covers all the Registrable Notes (but no other securities unless approved by the Holders whose Registrable Notes are to be covered by such Shelf Registration Statement) on an appropriate form under
Rule 415 under the Securities Act, or any similar rule that may be adopted by the SEC, and all amendments and supplements to such registration statement, including post-effective amendments, in each case including the Prospectus contained therein,
all exhibits thereto and any document incorporated by reference therein. 
 “Trust Indenture Act” means the
U.S. Trust Indenture Act of 1939, as amended from time to time, or any rules, regulations and forms promulgated thereunder. 
 “Trustee” means the Trustee with respect to the Notes under the Indenture. 
 “Underwriter” shall have the meaning set forth in Section 3 hereof. 
 “Underwritten
Offering” means an offering in which Registrable Notes are sold to an Underwriter for reoffering to the public. 
 For purposes of
this Agreement, (i) all references in this Agreement to any Registration Statement, preliminary prospectus or Prospectus or any amendment or supplement to any of the foregoing shall be deemed to include the version filed with the SEC pursuant
to its EDGAR; (ii) all references in this Agreement to financial statements and schedules and other information which is “contained”, “included” or “stated” in any Registration Statement or Prospectus (or other
similar references) shall be deemed to 

  

 6 

 
mean and include all such financial statements and schedules and other information which is incorporated or deemed to be incorporated by reference in such
Registration Statement or Prospectus, as the case may be; (iii) all references in this Agreement to amendments or supplements to any Registration Statement or Prospectus shall be deemed to mean and include the filing of any document under the
Exchange Act which is incorporated or deemed to be incorporated by reference in such Registration Statement or Prospectus, as the case may be; (iv) all references in this Agreement to Rule 144, Rule 144A or Rule 405 under the Securities Act,
and all references to any sections or subsections thereof or terms defined therein, shall include any successor provisions thereto; and (v) all references in this Agreement to “days” (but not to Business Days) means calendar days.

 For purposes of this Agreement, all references to the “Notes”, the “Exchange Notes”, or the “Registrable
Notes” shall be deemed to include the related Guarantees of such Notes by the Guarantor pursuant to the Indenture, except where otherwise indicated or the context otherwise requires. 
 2. Registration Under the Securities Act. (a) To the extent not prohibited by any applicable law or applicable interpretations of the staff
of the SEC and except in the circumstances contemplated by Section 2(b)(i) below, the Company and the Guarantor shall use their reasonable best efforts to (i) cause to be filed with the SEC an Exchange Offer Registration Statement covering
an offer to the Holders to exchange all the Registrable Notes for Exchange Notes as soon as practicable following the Closing Date, (ii) cause such Exchange Offer Registration Statement to become effective under the Securities Act as soon as
practicable following filing with the SEC, and (iii) have such Registration Statement remain effective until the earlier of (A) 120 days after the closing of the Exchange Offer and (B) such time as all Participating Broker-Dealers no
longer own any Registrable Notes. The Company and the Guarantor shall commence the Exchange Offer promptly after the Exchange Offer Registration Statement is declared effective by the SEC and use their reasonable best efforts to complete the
Exchange Offer not later than 60 days after such effective date. For purposes of this Agreement, the Exchange Offer shall be deemed completed upon the earlier to occur of (i) the Company and the Guarantor having exchanged the Exchange Notes for
all outstanding Registrable Notes (other than those held by Holders that are ineligible to participate in the Exchange Offer) pursuant to the Exchange Offer and (ii) the Company and the Guarantor having exchanged, pursuant to the Exchange
Offer, Exchange Notes for all Registrable Notes that have been properly tendered and not withdrawn before the expiration of the Exchange Offer; provided, however, that the Company and the Guarantor may, in their discretion, accept tenders of
Registrable Notes for Exchange Notes subsequent to the date the Company and the Guarantor consummate the Exchange Offer with respect to Registrable Notes tendered as of the date of initial consummation, and the Exchange Offer shall be deemed to have
been consummated notwithstanding any such extension of the tender period. 
  

 7 

 The Company and the Guarantor shall commence the Exchange Offer by mailing the related Prospectus,
appropriate letters of transmittal and other accompanying documents to each Holder stating, in addition to such other disclosures as are required by applicable law: 
 (i) that the Exchange Offer is being made pursuant to this Agreement and that all Registrable Notes validly tendered and not properly
withdrawn will be accepted for exchange; 
 (ii) the dates of acceptance for exchange (which shall be a period of at least 20
Business Days from the date such notice is mailed) (the “Exchange Dates”); 
 (iii) that any Registrable Note
not tendered will remain outstanding and continue to accrue interest but will not retain any rights under this Agreement; 
 (iv) that any Holder electing to have a Registrable Note exchanged pursuant to the Exchange Offer will be required to surrender such Registrable Note, together with the appropriate letters of transmittal, to the institution and at the
address (located in New York City) and in the manner specified in the notice, prior to the close of business on the last Exchange Date; and 
 (v) that any Holder will be entitled to withdraw its election, not later than the close of business on the last Exchange Date, in the manner specified in such notice. 
 As a condition to participating in the Exchange Offer, a Holder will be required to represent to the Company and the Guarantor that (i) any Exchange
Notes to be received by it will be acquired in the ordinary course of its business, (ii) at the time of the commencement of the Exchange Offer it has no arrangement or understanding with any Person to participate in the distribution (within the
meaning of the Securities Act) of the Exchange Notes in violation of the provisions of the Securities Act, (iii) it is not an “affiliate” (within the meaning of Rule 405 under Securities Act) of the Company or the Guarantor and
(iv) if such Holder is a broker-dealer, that it will receive Exchange Notes for its own account in exchange for Registrable Notes that were acquired as a result of market-making or other trading activities, and that it will deliver, to the
extent required by applicable law or regulation or SEC pronouncement, a Prospectus in connection with any resale of such Exchange Notes. 
 As soon as practicable after the last Exchange Date, the Company and the Guarantor shall: 
 (i) accept for exchange
Registrable Notes or portions thereof validly tendered and not properly withdrawn pursuant to the Exchange Offer; and 
  

 8 

 (ii) deliver, or cause to be delivered, to the Trustee for cancellation all Registrable
Notes or portions thereof so accepted for exchange by the Company and issue, and cause the Trustee to promptly authenticate and deliver to each Holder, Exchange Notes equal in principal amount to the principal amount of the Registrable Notes
surrendered by such Holder. 
 The Company and the Guarantor shall use their reasonable best efforts to complete the Exchange Offer as
provided above and shall comply with the applicable requirements of the Securities Act, the Exchange Act and other applicable laws and regulations in connection with the Exchange Offer. 
 (b) In the event that (i) the Company and the Guarantor determine that the Exchange Offer Registration provided for in Section 2(a) above is
not permitted or may not be completed as soon as practicable after the last Exchange Date because it would violate any applicable law or applicable interpretations of the Staff of the SEC, or because the Exchange Notes received by Holders are not or
would not be, upon receipt, transferable by each such holder without need for further compliance with Section 5 of the Securities Act (except for the requirement to deliver a Prospectus in connection with any resale by a Participating
Broker-Dealer), (ii) the Exchange Offer is not for any other reason completed by November 30, 2007 or (iii) upon completion of the Exchange Offer any of the Initial Purchasers shall so request in connection with any offering or sale
of Registrable Notes initially purchased by it pursuant to the Purchase Agreement, the Company and the Guarantor shall use their reasonable best efforts to cause to be filed as soon as practicable after such determination, date or request, as the
case may be, a Shelf Registration Statement providing for the sale of all the Registrable Notes by the Holders thereof and to have such Shelf Registration Statement become effective under the Securities Act. 
 If the Company and the Guarantor receive reasonable advance notice that they will be required to file a Shelf Registration Statement pursuant to clause
(iii) of the preceding paragraph, the Company and the Guarantor shall use their reasonable best efforts to file and have become effective under the Securities Act both an Exchange Offer Registration Statement pursuant to Section 2(a) with
respect to all Registrable Notes and a Shelf Registration Statement (which may be a combined Registration Statement with the Exchange Offer Registration Statement) with respect to offers and sales of Registrable Notes held by the Initial Purchasers
after completion of the Exchange Offer. 
 The Company and the Guarantor agree to use their reasonable best efforts to keep the Shelf
Registration Statement continuously effective until expiration of the period referred to in Rule 144(k) under the Securities Act with respect to the Registrable Notes or such shorter period that will terminate when all the Registrable Notes covered
by the Shelf Registration Statement have been sold pursuant to the Shelf Registration Statement (the “Shelf Effectiveness Period”). The Company and the Guarantor further agree to supplement or amend the Shelf Registration Statement,
the 

  

 9 

 
related Prospectus and any Free Writing Prospectus if required by the rules, regulations or instructions applicable to the registration form used by the
Company and the Guarantor for such Shelf Registration Statement or by the Securities Act or by any other rules and regulations thereunder for shelf registration or if reasonably requested by a Holder of Registrable Notes with respect to information
relating to such Holder, and to use their reasonable best efforts to cause any such amendment to become effective and such Shelf Registration Statement, Prospectus or Free Writing Prospectus, as the case may be, to become usable as soon as
thereafter practicable. The Company and the Guarantor agree to furnish to the Holders of Registrable Notes copies of any such supplement or amendment promptly after its being used or filed with the SEC. 
 (c) The Company and the Guarantor shall pay all Registration Expenses in connection with the registration provided in Sections 2(a) and 2(b). Each Holder
shall pay all underwriting discounts and commissions and transfer taxes, if any, relating to the sale or disposition of such Holder’s Registrable Notes pursuant to the Shelf Registration Statement. 
 (d) An Exchange Offer Registration Statement pursuant to Section 2(a) hereof will not be deemed to have become effective unless it has been declared
effective by the SEC. A Shelf Registration Statement pursuant to Section 2(b) hereof will not be deemed to have become effective unless it has been declared effective by the SEC or is automatically effective upon filing with the SEC as provided
by Rule 462 under the Securities Act. Any obligation to file with the SEC a Shelf Registration Statement pursuant to Section 2(b) hereof will be deemed to be satisfied if the Company has previously filed a registration statement with the SEC
that may be used without limitation or restriction for the purposes contemplated by Section 2(b). 
 (e) In the event that either the
Exchange Offer is not completed or the Shelf Registration Statement, if required hereby, has not become effective under the Securities Act on or prior to November 30, 2007 (December 31, 2007 solely in the case of a Shelf Registration Statement
pursuant to Section 2(b)(iii) above), the interest rate on the Registrable Notes will be increased by 0.50% per annum until the Exchange Offer is completed or the Shelf Registration Statement, if required hereby, become effective under the
Securities Act or the Notes become freely tradable under the Securities Act, at which time the increased interest shall cease to accrue. 
 If the Shelf Registration Statement has become effective under the Securities Act and thereafter
either ceases to be effective or the Prospectus contained therein ceases to be usable at any time during the Shelf Effectiveness Period, and such failure to remain effective or usable exists for more than 30 days (whether or not consecutive) in any
12-month period (two suspensions not to exceed 30 days each in any 365-day period in the case of a Suspension described in Section 3), then the interest rate on the Registrable Notes will be increased by 0.50% per annum commencing on the
31st day in such 12-month period and ending on such date that the Shelf Registration Statement has again become effective under the Securities Act or the

  

 10 

 
Prospectus again becomes usable, at which time the increased interest shall cease to accrue; provided, however, that if the Prospectus ceases to be
usable because audited financial statements are required to be filed with the SEC and incorporated by reference in the Shelf Registration Statement to comply with the undertaking of the Company and the Guarantor pursuant to Item 512(a)(4) of
Regulation S-K (or any successor provision), such a suspension shall not be a suspension for purposes of the foregoing provision unless and to the extent its duration exceeds 60 days. 
 3. Registration Procedures. In connection with their obligations pursuant to Sections 2(a) and 2(b) hereof, the Company and the Guarantor shall as
expeditiously as possible: 
 (a) prepare and file with the SEC a Registration Statement on the appropriate form under the Securities Act,
which form (i) shall be selected by the Company, (ii) shall, in the case of a Shelf Registration, be available for the sale of the Registrable Notes by selling Holders thereof and (iii) shall comply as to form in all material respects
with the requirements of the applicable form and include all financial statements and other information required by the SEC to be filed therewith; and use their reasonable best efforts to cause such Registration Statement to become effective and
remain effective for the applicable period in accordance with Section 2 hereof; 
 (b) prepare and file with the SEC such amendments and
post-effective amendments to each Registration Statement as may be necessary to keep such Registration Statement effective for the applicable period in accordance with Section 2 hereof and cause each Prospectus to be supplemented by any
required prospectus supplement and, as so supplemented, to be filed pursuant to Rule 424 under the Securities Act; and keep each Prospectus current during the period described in Section 4(3) of and Rule 174 under the Securities Act that is
applicable to transactions by brokers or dealers with respect to the Registrable Notes or Exchange Notes; 
 (c) to the extent any Free
Writing Prospectus is used, file with the SEC any Free Writing Prospectus that is required to be filed by the Company or the Guarantor with the SEC in accordance with the Securities Act and to retain any Free Writing Prospectus not required to be
filed; 
 (d) in the case of a Shelf Registration, furnish to each Holder of Registrable Notes, to U.S. counsel for the Initial Purchasers,
to counsel for such Holders and to each Underwriter of an Underwritten Offering of Registrable Notes, if any, without charge, as many copies of each Prospectus, including each preliminary Prospectus or Free Writing Prospectus, and any amendment or
supplement thereto as they may reasonably request, in order to facilitate the sale or other disposition of the Registrable Notes thereunder; and the Company and the Guarantor consent to the use of such Prospectus, preliminary Prospectus or Free
Writing Prospectus and any amendment or supplement thereto in accordance with applicable law by each of the selling Holders of Registrable Notes and any such Underwriters in connection with the 

  

 11 

 
offering and sale of the Registrable Notes covered by and in the manner described in such Prospectus, preliminary Prospectus or Free Writing Prospectus or
any amendment or supplement thereto in accordance with applicable law; 
 (e) use their reasonable best efforts to register or qualify the
Registrable Notes under all applicable state securities or blue sky laws of such jurisdictions as a majority of the Holders of Registrable Notes covered by a Registration Statement shall reasonably request in writing by the time the applicable
Registration Statement has become effective under the Securities Act; cooperate with the Holders in connection with any filings required to be made with the National Association of Securities Dealers, Inc.; and do any and all other acts and things
that may be reasonably necessary or advisable to enable each Holder to complete the disposition in each such jurisdiction of the Registrable Notes owned by such Holder; provided that neither the Company nor the Guarantor shall be required to
(i) qualify as a foreign corporation or other entity or as a dealer in securities in any such jurisdiction where it would not otherwise be required to so qualify, (ii) file any general consent to service of process in any such jurisdiction
or (iii) subject itself to taxation in any such jurisdiction if it is not otherwise so subject; 
 (f) in the case of a Shelf
Registration, notify each Holder of Registrable Notes, counsel for such Holders and counsel for the Initial Purchasers promptly and, if requested by any such Holder or counsel, confirm such advice in writing (i) when a Registration Statement
has become effective and when any post-effective amendment thereto has been filed and becomes effective, when any Free Writing Prospectus has been filed or any amendment or supplement to the Prospectus or any Free Writing Prospectus has been filed,
(ii) of any request by the SEC or any state securities authority for amendments and supplements to a Registration Statement, Prospectus or any Free Writing Prospectus or for additional information after the Registration Statement has become
effective, (iii) of the issuance by the SEC or any state securities authority of any stop order suspending the effectiveness of a Registration Statement or the initiation of any proceedings for that purpose, including the receipt by the Company
of any notice of objection of the SEC to the use of a Shelf Registration Statement or any post-effective amendment thereto pursuant to Rule 401(g)(2) under the Securities Act, (iv) if, between the effective date of a Registration Statement and
the closing of any sale of Registrable Notes covered thereby, the representations and warranties of the Company and the Guarantor contained in any underwriting agreement, securities sales agreement or other similar agreement, if any, relating to an
offering of such Registrable Notes cease to be true and correct in all material respects or if the Company receives any notification with respect to the suspension of the qualification of the Registrable Notes for sale in any jurisdiction or the
initiation of any proceeding for such purpose (to the extent that such agreement provides for such notice), (v) of the happening of any event during the period a Shelf Registration Statement is effective that makes any statement made in such
Registration Statement or the related Prospectus or any Free Writing Prospectus untrue in any material respect or that requires the making of any changes in such Registration 

  

 12 

 
Statement or Prospectus or any Free Writing Prospectus in order to make the statements therein not misleading and (vi) of any determination by the
Company or the Guarantor that a post-effective amendment to a Registration Statement or any amendment or supplement to the Prospectus or any Free Writing Prospectus would be appropriate; 
 (g) use their reasonable best efforts to obtain the withdrawal of any order suspending the effectiveness of a Registration Statement or, in the case of a
Shelf Registration, the resolution of any objection of the SEC pursuant to Rule 401(g)(2), including by filing an amendment to such Shelf Registration Statement on the proper form, at the earliest possible moment and provide immediate notice to each
Holder of the withdrawal of any such order; 
 (h) use all reasonable efforts to obtain the consent or approval of each Mexican or U.S.
governmental agency or authority, whether federal or state that may be required to effect the Exchange Offer and the offering and sale of Exchange Notes; 
 (i) in the case of a Shelf Registration, furnish to each Holder of Registrable Notes, without charge, at least one conformed copy of each Registration Statement and any post-effective amendment thereto (without any
documents incorporated therein by reference or exhibits thereto, unless requested); 
 (j) in the case of a Shelf Registration, cooperate
with the selling Holders of Registrable Notes to facilitate the timely preparation and delivery of certificates representing Registrable Notes to be sold and not bearing any restrictive legends and enable such Registrable Notes to be issued in such
denominations and registered in such names (consistent with the provisions of the Indenture) as the selling Holders may reasonably request at least one Business Day prior to the closing of any sale of Registrable Notes; 
 (k) in the case of a Shelf Registration, upon the occurrence of any event contemplated by Section 3(f)(v) hereof, use their reasonable best efforts
to prepare and file with the SEC a supplement or post-effective amendment to a Registration Statement or the related Prospectus or any Free Writing Prospectus or any document incorporated therein by reference or file any other required document so
that, as thereafter delivered (or, to the extent permitted by law, made available) to purchasers of the Registrable Notes, such Prospectus or Free Writing Prospectus, as the case may be, will not contain any untrue statement of a material fact or
omit to state a material fact required to be stated therein or necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading; and the Company and the Guarantor shall notify the Holders of
Registrable Notes to suspend use of the Prospectus or any Free Writing Prospectus as promptly as practicable after the occurrence of such an event, and such Holders hereby agree to suspend use of the Prospectus or any Free Writing Prospectus, as the
case may be, until the Company and the Guarantor have amended or supplemented the Prospectus or the Free Writing Prospectus, as the case may be, to correct such misstatement or omission; 
  

 13 

 (l) if reasonably requested by the Initial Purchasers or Holders and their respective counsel, a
reasonable time prior to the filing of any Registration Statement, any Prospectus, any Free Writing Prospectus, any amendment to a Registration Statement or amendment or supplement to a Prospectus or a Free Writing Prospectus or of any document that
is to be incorporated by reference into a Registration Statement, a Prospectus or a Free Writing Prospectus after initial filing of a Registration Statement (and prior to the completion of an Exchange Offer in the case of an Exchange Offer
Registration Statement), provide copies of such document to the Initial Purchasers and U.S. counsel for the Initial Purchasers (and, in the case of a Shelf Registration Statement, to the Holders of Registrable Notes and their counsel) and make such
of the representatives of the Company and the Guarantor as shall be reasonably requested by the Initial Purchasers or such counsel (and, in the case of a Shelf Registration Statement, the Holders of Registrable Notes or their counsel) available for
discussion of such document; and, in such event, the Company and the Guarantor shall not, at any time after initial filing of a Registration Statement, use or file any Prospectus, any Free Writing Prospectus, any amendment of or supplement to a
Registration Statement or a Prospectus or a Free Writing Prospectus, or any document that is to be incorporated by reference into a Registration Statement, a Prospectus or a Free Writing Prospectus, of which the Initial Purchasers and such counsel
(and, in the case of a Shelf Registration Statement, the Holders of Registrable Notes and their counsel) shall not have previously been advised and furnished a copy or to which the Initial Purchasers or such counsel (and, in the case of a Shelf
Registration Statement, the Holders or their counsel) shall reasonably and timely object; 
 (m) obtain CUSIP and ISIN numbers for all
Exchange Notes or Registrable Notes, as the case may be, not later than the effective date of a Registration Statement, and provide the Trustee with printed or word-processed certificates for the Exchange Notes or Registrable Notes, as the case may
be, in a form eligible for deposit with the Depositary; 
 (n) take all reasonable action necessary to ensure that the Exchange Notes, at the
time of the consummation of the Exchange Offer (or as soon as reasonably practicable thereafter), are admitted to listing on the Luxembourg Stock Exchange and trading on the EuroMTF; 
 (o) cause the Indenture to be qualified under the Trust Indenture Act in connection with the registration of the Exchange Notes or Registrable Notes, as
the case may be; cooperate with the Trustee and the Holders to effect such changes to the Indenture as may be required for the Indenture to be so qualified in accordance with the terms of the Trust Indenture Act; and execute, and use their
reasonable best efforts to cause the Trustee to execute, all documents as may be required to effect such changes and all other forms and documents required to be filed with the SEC to enable the Indenture to be so qualified in a timely manner;

  

 14 

 (p) in the case of a Shelf Registration, make available for inspection by a representative of Holders of
Registrable Notes that confirm to the Company and the Guarantor that it is their current intention to sell Registrable Notes pursuant to a Shelf Registration (an “Inspector”), any Underwriter participating in any disposition
pursuant to such Shelf Registration Statement, and counsel and accountants designated by the Holders, at reasonable times and in a reasonable manner, all pertinent financial and other records, documents and properties of the Company and the
Guarantor as may be reasonably requested by any such Inspector, Underwriter, counsel or accountant in connection with a Shelf Registration Statement, and cause the respective officers, directors and employees of the Company and the Guarantor to
supply such information; provided that if any such information is identified in writing by the Company and the Guarantor as being confidential or proprietary, each Person receiving such information shall use such Person’s reasonable best
efforts to protect the confidentiality of such information to the extent such action is otherwise not inconsistent with, an impairment of or in derogation of the substantial and necessary rights and interests of any Inspector, Holder or Underwriter;

 (q) if reasonably requested by any Holder of Registrable Notes covered by a Registration Statement, promptly incorporate in a Prospectus
supplement or post-effective amendment such information with respect to such Holder as such Holder reasonably requests to be included therein and make all required filings of such Prospectus supplement or such post-effective amendment as soon as the
Company has received notification of the matters to be incorporated in such filing; and 
 (r) in the case of a Shelf Registration, enter
into such customary agreements and take all such other actions in connection therewith (including those requested by the Holders of a majority in principal amount of the Registrable Notes being sold) in order to expedite or facilitate the
disposition of such Registrable Notes including, but not limited to, an Underwritten Offering and in such connection, (i) to the extent possible, make such representations and warranties to the Holders and any Underwriters of such Registrable
Notes with respect to the business of the Company and the Guarantor and their respective subsidiaries, the Registration Statement, Prospectus, any Free Writing Prospectus and documents incorporated by reference or deemed incorporated by reference,
if any, in each case, in form, substance and scope as are customarily made by issuers to underwriters in underwritten offerings and confirm the same if and when requested, (ii) obtain opinions of counsel to the Company and the Guarantor (which
counsel and opinions, in form, scope and substance, shall be reasonably satisfactory to the Holders and such Underwriters and their respective counsel) addressed to each selling Holder and Underwriter of Registrable Notes, covering the matters
customarily covered in opinions requested in underwritten offerings, (iii) subject to receipt of the documentation to the extent required by Statement of Auditing Standard No. 72 (or successor pronouncements), obtain 

  

 15 

 
“comfort” letters from the independent certified public accountants of the Company and the Guarantor (and, if necessary, any other certified public
accountant of any subsidiary of the Company and the Guarantor, or of any business acquired by the Company and the Guarantor for which financial statements and financial data are or are required to be included in the Registration Statement) addressed
to each selling Holder and Underwriter of Registrable Notes, such letters to be in customary form and covering matters of the type customarily covered in “comfort” letters in connection with underwritten offerings, including but not
limited to financial information contained or incorporated by reference in any preliminary Prospectus, Prospectus or Free Writing Prospectus, (iv) deliver such documents and certificates as may be reasonably requested by the Holders of a
majority in principal amount of the Registrable Notes being sold or the Underwriters, and which are customarily delivered in underwritten offerings, to evidence the continued validity of the representations and warranties of the Company and the
Guarantor made pursuant to clause (i) above and to evidence compliance with any customary conditions contained in an underwriting agreement. 
 In the case of a Shelf Registration Statement, the Company and the Guarantor may require each Holder of Registrable Notes to furnish to the Company or the Guarantor, as the case may be, such information regarding such Holder and the
proposed disposition by such Holder of such Registrable Notes as the Company or the Guarantor may from time to time reasonably request in writing. 
 In the case of any Registration Statement, each Holder of Registrable Notes agrees that, upon receipt of any notice from the Company or the Guarantor to the effect of the happening of any event of the kind described in
Section 3(f)(iii) or 3(f)(iv) hereof or that the Prospectus included in any Registration Statement cannot be used for any other reason, such Holder will forthwith discontinue disposition of Registrable Notes pursuant to such Registration
Statement until such Holder’s receipt of the copies of the supplemented or amended Prospectus and any Free Writing Prospectus contemplated by Section 3(k) hereof and, if so directed by the Company and the Guarantor, such Holder will
deliver to the Company and the Guarantor all copies in its possession, other than permanent file copies then in such Holder’s possession, of the Prospectus and any Free Writing Prospectus covering such Registrable Notes that is current at the
time of receipt of such notice. The Company and the Guarantor may give any such notice only twice during any 365-day period and any such suspensions shall not exceed 30 days for each suspension and there shall not be more than two suspensions in
effect during any 365-day period; provided, however, that if the Prospectus ceases to be usable because audited financial statements are required to be filed with the SEC and incorporated by reference in the Shelf Registration Statement to
comply with the undertaking of the Company and the Guarantor pursuant to Item 512(a)(4) of Regulation S-K (or any successor provision), such a suspension shall not be a suspension for purposes of the foregoing provision unless and to the extent
its duration exceeds 60 days. 
 If the Company and the Guarantor shall give any such notice to suspend the disposition of Registrable Notes
pursuant to any Registration Statement, the 

  

 16 

 
Company and the Guarantor shall extend the period during which the Registration Statement shall be maintained effective pursuant to this Agreement by the
number of days during the period from and including the date of the giving of such notice to and including the date when the Holders shall have received copies of the supplemented or amended Prospectus or any Free Writing Prospectus necessary to
resume such dispositions. 
 The Holders of Registrable Notes covered by a Shelf Registration Statement who desire to do so may sell such
Registrable Notes in an Underwritten Offering. In any such Underwritten Offering, the investment banker or investment bankers and manager or managers (the “Underwriters”) that will administer the offering will be selected by the
Majority Holders of the Registrable Notes included in such offering. 
 4. Participation of Broker-Dealers in Exchange Offer.
(a) The Staff of the SEC has taken the position that any broker-dealer that receives Exchange Notes for its own account in the Exchange Offer in exchange for Notes that were acquired by such broker-dealer as a result of market-making or other
trading activities (a “Participating Broker-Dealer”) may be deemed to be an “underwriter” within the meaning of the Securities Act and must deliver a prospectus meeting the requirements of the Securities Act in connection
with any resale of such Exchange Notes. 
 The Company and the Guarantor understand that it is the Staff’s position that if the
Prospectus contained in the Exchange Offer Registration Statement includes a plan of distribution containing a statement to the above effect and the means by which Participating Broker-Dealers may resell the Exchange Notes, without naming the
Participating Broker-Dealers or specifying the amount of Exchange Notes owned by them, such Prospectus may be delivered by Participating Broker-Dealers to satisfy their prospectus delivery obligation under the Securities Act in connection with
resales of Exchange Notes for their own accounts, so long as the Prospectus otherwise meets the requirements of the Securities Act. 
 (b) In
light of the above, and notwithstanding the other provisions of this Agreement, the Company and the Guarantor agree to amend or supplement the Prospectus contained in the Exchange Offer Registration Statement, as would otherwise be contemplated by
Section 3(k), for a period of up to 120 days after the last Exchange Date (as such period may be extended pursuant to the penultimate paragraph of Section 3 of this Agreement), if requested by the Initial Purchasers or by one or more
Participating Broker-Dealers, in order to expedite or facilitate the disposition of any Exchange Notes by Participating Broker-Dealers consistent with the positions of the Staff recited in Section 4(a) above. The Company and the Guarantor
further agree that Participating Broker-Dealers shall be authorized to deliver such Prospectus during such period in connection with the resales contemplated by this Section 4. 
  

 17 

 (c) The Initial Purchasers shall have no liability to the Company, the Guarantor or any Holder with
respect to any request that they may make pursuant to Section 4(b) above. 
 5. Indemnification and Contribution. (a) The
Company and the Guarantor, jointly and severally, agree to indemnify and hold harmless the Initial Purchasers and each Holder, their respective affiliates, directors and officers and each Person, if any, who controls the Initial Purchasers or any
Holder within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act, from and against any and all losses, claims, damages and liabilities (including, without limitation, legal fees and other expenses incurred in
connection with any suit, action or proceeding or any claim asserted, as such fees and expenses are incurred), joint or several, that arise out of, or are based upon, (1) any untrue statement or alleged untrue statement of a material fact
contained in any Registration Statement or any omission or alleged omission to state therein a material fact required to be stated therein or necessary in order to make the statements therein not misleading, or (2) any untrue statement or
alleged untrue statement of a material fact contained in any Prospectus, any Free Writing Prospectus or any “issuer information” (“Issuer Information”) filed or required to be filed pursuant to Rule 433(d) under the
Securities Act, or any omission or alleged omission to state therein a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading, in each case except insofar as such
losses, claims, damages or liabilities arise out of, or are based upon, any untrue statement or omission or alleged untrue statement or omission made in reliance upon and in conformity with any information furnished to the Company or the Guarantor
in writing or to any selling Holder by or on behalf of such Person expressly for use therein. In connection with any Underwritten Offering permitted by Section 3, the Company and the Guarantor, jointly and severally, will also indemnify the
Underwriters, their directors and officers and each Person who controls such Underwriters (within the meaning of the Securities Act and the Exchange Act) to the same extent as provided above with respect to the indemnification of the Holders, if
requested in connection with any Registration Statement, any Prospectus, any Free Writing Prospectus or any Issuer Information. Notwithstanding the preceding sentences of this Section 5(a), with respect to any such untrue statement in or
omission from a preliminary Prospectus, the indemnity agreement contained in this Section 5(a) shall not inure to the benefit of any Holder to the extent that the sale to the Person asserting any such loss, claim, damage or liability was an
initial resale by such Holder and any such loss, claim, damage or liability of or with respect to such Holder results from the fact that both (i) a copy of the final Prospectus (excluding any documents incorporated by reference therein) was not
sent or given to such Person at or prior to the written confirmation of the sale of such Exchange Notes to such Person and (ii) the untrue statement in or omission from such preliminary Prospectus was corrected in the final Prospectus unless,
in either case, such failure to deliver the final Prospectus was a result of non-compliance by the Company with the provisions of Section 3 hereof. 
  

 18 

 (b) Each Holder agrees, severally and not jointly, to indemnify and hold harmless the Company, the
Guarantor, the Initial Purchasers and the other selling Holders, their respective affiliates, the directors of the Company and the Guarantor, each officer of the Company and the Guarantor who signed the Registration Statement and each Person, if
any, who controls the Company, the Guarantor, any Initial Purchaser and any other selling Holder within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act to the same extent as the indemnity set forth in
Section 5(a) above, but only with respect to any losses, claims, damages or liabilities that arise out of, or are based upon, any untrue statement or omission or alleged untrue statement or omission made in reliance upon and in conformity with
any information relating to such Holder furnished to the Company or the Guarantor in writing by such Holder expressly for use in any Registration Statement, any Prospectus and any Free Writing Prospectus and, subject to the limitation set forth
immediately preceding this clause, shall reimburse such Persons for any legal or other expenses reasonably incurred by them in connection with investigating or defending any loss, claim, damage, liability or action in respect thereof. 
 (c) If any suit, action, proceeding (including any governmental or regulatory investigation), claim or demand shall be brought or asserted against any
Person in respect of which indemnification may be sought pursuant to either Section (a) or (b) above, such Person (the “Indemnified Person”) shall promptly notify the Person against whom such indemnification may be sought
(the “Indemnifying Person”) in writing; provided that the failure to notify the Indemnifying Person shall not relieve it from any liability that it may have under this Section 5 except to the extent that it has been
materially prejudiced (through the forfeiture of substantive rights or defenses) by such failure; and provided, further, that the failure to notify the Indemnifying Person shall not relieve it from any liability that it may have to an
Indemnified Person otherwise than under this Section 5. If any such proceeding shall be brought or asserted against an Indemnified Person and it shall have notified the Indemnifying Person thereof, the Indemnifying Person shall retain counsel
reasonably satisfactory to the Indemnified Person to represent the Indemnified Person and any others entitled to indemnification pursuant to this Section 5 that the Indemnifying Person may designate in such proceeding and shall pay the fees and
expenses of such counsel related to such proceeding, as incurred. In any such proceeding, any Indemnified Person shall have the right to retain its own counsel, but the fees and expenses of such counsel shall be at the expense of such Indemnified
Person unless (i) the Indemnifying Person and the Indemnified Person shall have mutually agreed to the contrary; (ii) the Indemnifying Person has failed within a reasonable time to retain counsel reasonably satisfactory to the Indemnified
Person; (iii) the Indemnified Person shall have reasonably concluded that there may be legal defenses available to it that are different from or in addition to those available to the Indemnifying Person; or (iv) the named parties in any
such proceeding (including any impleaded parties) include both the Indemnifying Person and the Indemnified Person and representation of both parties by the same counsel would be inappropriate due to actual or potential differing interests between
them. It is understood and agreed that the 

  

 19 

 
Indemnifying Person shall not, in connection with any proceeding or related proceeding in the same jurisdiction, be liable for the fees and expenses of more
than one separate firm (in addition to any local counsel) for all Indemnified Persons, and that all such fees and expenses shall be reimbursed as they are incurred. Any such separate firm (x) for the Initial Purchasers, their respective
affiliates, directors and officers and any control Persons of each of the Initial Purchasers shall be jointly designated in writing by the Initial Purchasers, (y) for any Holder, its affiliates, directors and officers and any control Persons of
such Holder shall be designated in writing by the Majority Holders and (z) in all other cases shall be designated in writing by the Company. The Indemnifying Person shall not be liable for any settlement of any proceeding effected without its
written consent, but if settled with such consent or if there be a final judgment for the plaintiff, the Indemnifying Person agrees to indemnify each Indemnified Person from and against any loss or liability by reason of such settlement or judgment.
Notwithstanding the foregoing sentence, if at any time an Indemnified Person shall have requested that an Indemnifying Person reimburse the Indemnified Person for fees and expenses of counsel as contemplated by this Section 5(c), the
Indemnifying Person shall be liable for any settlement of any proceeding effected without its written consent if (i) such settlement is entered into more than 30 days after receipt by the Indemnifying Person of such request and (ii) the
Indemnifying Person shall not have reimbursed the Indemnified Person in accordance with such request prior to the date of such settlement. No Indemnifying Person shall, without the written consent of the Indemnified Person, effect any settlement of
any pending or threatened proceeding in respect of which any Indemnified Person is or could have been a party and indemnification could have been sought hereunder by such Indemnified Person, unless such settlement (A) includes an unconditional
release of such Indemnified Person, in form and substance reasonably satisfactory to such Indemnified Person, from all liability on claims that are the subject matter of such proceeding and (B) does not include any statement as to or any
admission of fault, culpability or a failure to act by or on behalf of any Indemnified Person. 
 (d) If the indemnification provided for in
Sections (a) and (b) above is unavailable to an Indemnified Person or insufficient in respect of any losses, claims, damages or liabilities referred to therein, then each Indemnifying Person under such Section, in lieu of indemnifying such
Indemnified Person thereunder, shall contribute to the amount paid or payable by such Indemnified Person as a result of such losses, claims, damages or liabilities (i) in such proportion as is appropriate to reflect the relative benefits
received by the Company and the Guarantor from the offering of the Notes and the Exchange Notes, on the one hand, and by the Holders from receiving Notes or Exchange Notes registered under the Securities Act, on the other hand, or (ii) if the
allocation provided by clause (i) is not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative benefits referred to in clause (i) but also the relative fault of the Company and the Guarantor on
the one hand and the Holders on the other in connection with the statements or omissions that resulted in such losses, claims, damages or liabilities, as well as any other relevant equitable 

  

 20 

 
considerations. The relative fault of the Company and the Guarantor on the one hand and the Holders on the other shall be determined by reference to, among
other things, whether the untrue or alleged untrue statement of a material fact or the omission or alleged omission to state a material fact relates to information supplied by the Company and the Guarantor or by the Holders and the parties’
relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission. 
 (e) The Company, the
Guarantor and the Holders agree that it would not be just and equitable if contribution pursuant to this Section 5 were determined by pro rata allocation (even if the Holders were treated as one entity for such purpose) or by any other
method of allocation that does not take account of the equitable considerations referred to in Section 5(d) above. The amount paid or payable by an Indemnified Person as a result of the losses, claims, damages and liabilities referred to in
Section 5(d) above shall be deemed to include, subject to the limitations set forth above, any legal or other expenses incurred by such Indemnified Person in connection with any such action or claim. Notwithstanding the provisions of this
Section 5, in no event shall a Holder be required to contribute any amount in excess of the amount by which the total price at which the Notes or Exchange Notes sold by such Holder exceeds the amount of any damages that such Holder has
otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission. No Person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled
to contribution from any Person who was not guilty of such fraudulent misrepresentation. 
 (f) The remedies provided for in this
Section 5 are not exclusive and shall not limit any rights or remedies that may otherwise be available to any Indemnified Person at law or in equity. 
 (g) The indemnity and contribution provisions contained in this Section 5 shall remain operative and in full force and effect regardless of (i) any termination of this Agreement, (ii) any investigation
made by or on behalf of the Initial Purchasers or any Holder, their respective affiliates or any Person controlling each of the Initial Purchasers or any Holder, or by or on behalf of the Company or the Guarantor, their respective affiliates or the
officers or directors of or any Person controlling the Company or the Guarantor, (iii) acceptance of any of the Exchange Notes and (iv) any sale of Registrable Notes pursuant to a Shelf Registration Statement. 
 6. General. 
 (a) Rule 144 and Rule
144A. For so long as the Company is subject to the reporting requirements of Section 13 or 15 of the Exchange Act, the Company covenants that it will file all reports required to be filed by it under Section 13(a) or 15(d) of the
Exchange Act and the rules and regulations adopted by the SEC thereunder and that if it ceases to be so required to file such reports, it will upon the request of any Holder or beneficial owner of Registrable Notes (i) make publicly available
such 

  

 21 

 
information (including, without limitation, the information specified in Rule 144(c)(2) under the Securities Act) as is necessary to permit sales
pursuant to Rule 144 under the Securities Act, (ii) deliver or cause to be delivered, promptly following a request by any Holder or beneficial owner of Registrable Notes or any prospective purchaser or transferee designated by such Holder
or beneficial owner, such information (including, without limitation, the information specified in Rule 144A(d)(4) under the Securities Act) as is necessary to permit sales pursuant to Rule 144A under the Securities Act, and
(iii) take such further action that is reasonable in the circumstances, in each case to the extent required from time to time to enable such Holder to sell its Registrable Notes without registration under the Securities Act within the
limitation of the exemptions provided by (A) Rule 144 under the Securities Act, as such Rule may be amended from time to time, (B) Rule 144A under the Securities Act, as such Rule may be amended from time to time, or (C) any
similar rules or regulations hereafter adopted by the SEC. Upon the request of any Holder or beneficial owner of Registrable Notes, the Company will deliver to such Holder a written statement as to whether it has complied with such requirements.

 (b) Specific Performance. The Company and the Guarantor acknowledge that there would be no adequate remedy at law if the Company
and the Guarantor failed to perform any of their obligations in this Agreement (including, without limitation, their obligations under Sections 2(a) and 2(b) hereof) and that any such failure may result in material irreparable injuries to the
Initial Purchasers and the Holders from time to time of the Registrable Notes and that it will not be possible to measure damages for such injuries precisely, and, accordingly the Company and the Guarantor agree that the Initial Purchasers and such
Holders, in addition to any other remedy to which they may be entitled at law or in equity, shall be entitled to compel specific performance of the obligations of the Company and the Guarantor under this Agreement in accordance with the terms and
conditions of this Agreement, in any U.S. federal or New York court located in New York City. 
 (c) No Inconsistent Agreements. The
Company and the Guarantor represent, warrant and agree that (i) the rights granted to the Holders hereunder do not in any way conflict with and are not inconsistent with the rights granted to the holders of any other outstanding securities
issued or guaranteed by the Company and the Guarantor under any other agreement and (ii) neither the Company nor the Guarantor has not entered into, or on or after the date of this Agreement will enter into, any agreement that is inconsistent
with the rights granted to the Holders of Registrable Notes in this Agreement or otherwise conflicts with the provisions hereof. 
 (d)
Amendments and Waivers. The provisions of this Agreement, including the provisions of this sentence, may not be amended, modified or supplemented, and waivers or consents to departures from the provisions hereof may not be given unless the
Company and the Guarantor have obtained the written consent of Holders of at least a majority in aggregate principal amount of the outstanding Registrable Notes affected by such amendment, modification, supplement, waiver or 

  

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consent; provided that no amendment, modification, supplement, waiver or consent to any departure from the provisions of Section 5 hereof shall
be effective as against any Holder of Registrable Notes unless consented to in writing by such Holder. Any amendments, modifications, supplements, waivers or consents pursuant to this Section 6(d) shall be by a writing executed by each of the
parties hereto. 
 (e) Notices. All notices and other communications provided for or permitted hereunder shall be made in writing by
hand-delivery, registered first-class mail, telex, telecopier, or any courier guaranteeing overnight delivery (i) if to a Holder, at the most current address given by such Holder to the Company by means of a notice given in accordance with the
provisions of this Section 6(e), which address initially is, with respect to the Initial Purchasers, the address set forth in the Purchase Agreement; (ii) if to the Company and the Guarantor, initially at the Company’s address set
forth in the Purchase Agreement and thereafter at such other address, notice of which is given in accordance with the provisions of this Section 6(e); and (iii) to such other persons at their respective addresses as provided in the
Purchase Agreement and thereafter at such other address, notice of which is given in accordance with the provisions of this Section 6(e). All such notices and communications shall be deemed to have been duly given: at the time delivered by
hand, if personally delivered; five Business Days after being deposited in the mail, postage prepaid, if mailed; when answered back, if telexed; when receipt is acknowledged, if telecopied; and on the next Business Day if timely delivered to an air
courier guaranteeing overnight delivery. Copies of all such notices, demands or other communications shall be concurrently delivered by the Person giving the same to the Trustee, at the address specified in the Indenture. 
 (f) Successors and Assigns. This Agreement shall inure to the benefit of and be binding upon the successors, assigns and transferees of each of
the parties, including, without limitation and without the need for an express assignment, subsequent Holders; provided that nothing herein shall be deemed to permit any assignment, transfer or other disposition of Registrable Notes in
violation of the terms of the Purchase Agreement or the Indenture. If any transferee of any Holder shall acquire Registrable Notes in any manner, whether by operation of law or otherwise, such Registrable Notes shall be held subject to all the terms
of this Agreement, and by taking and holding such Registrable Notes such Person shall be conclusively deemed to have agreed to be bound by and to perform all of the terms and provisions of this Agreement and such Person shall be entitled to receive
the benefits hereof. The Initial Purchasers (in their capacity as Initial Purchasers) shall have no liability or obligation to the Company and the Guarantor with respect to any failure by a Holder to comply with, or any breach by any Holder of, any
of the obligations of such Holder under this Agreement. 
 (g) Third-Party Beneficiaries. Each Holder shall be a third-party
beneficiary to the agreements made hereunder between the Company and the Guarantor, on the one hand, and the Initial Purchasers, on the other hand, and shall have the right to enforce such agreements directly to the extent it deems such enforcement
necessary or advisable to protect its rights or the rights of other Holders hereunder. 
  

 23 

 (h) Purchases and Sales of Notes. The Company and the Guarantor shall not, and shall use their
reasonable best efforts to cause their affiliates (as defined in Rule 405 under the Securities Act) not to, purchase and then resell or otherwise transfer any Registrable Notes. 
 (i) Counterparts. This Agreement may be executed in any number of counterparts and by the 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. 
 (j) Jurisdiction, Venue and Service of Process. Each of the parties hereto hereby submits
to the jurisdiction of any U.S. federal or New York state court in New York City or to the courts of its own corporate domicile, in respect of actions brought against it as a defendant, in any legal suit, action or proceeding based on or arising
under this Agreement and agrees that all claims in respect of such suit or proceeding may be determined in any such court. Each of the Company and the Guarantor waives, to the extent permitted by law, the defense of an inconvenient forum or
objections to personal jurisdiction with respect to the maintenance of such legal suit, action or proceeding. Each of the Company and the Guarantor hereby designates and appoints CT Corporation System, 111 Eighth Avenue, 13th Floor, New York, New York 10011 (the “Process Agent”), as its authorized agent, upon whom process may be served in any such legal suit,
action or proceeding based on or arising under this Agreement, it being understood that the designation and appointment of CT Corporation System as such authorized agent shall become effective immediately without any further action on the part of
the Company or the Guarantor. Such appointment shall be irrevocable to the extent permitted by applicable law and subject to the appointment of a successor agent in the United States on terms substantially similar to those contained in this
Section 6(j). If the Process Agent shall cease to act as agent for service of process, the Company and the Guarantor shall each appoint, without unreasonable delay, another such agent, and notify the holders of such appointment. Each of the
Company and the Guarantor represents to the holders that it has notified the Process Agent of such designation and appointment and that the Process Agent has accepted the same in writing. Each of the Company and the Guarantor hereby authorizes and
directs the Process Agent to accept such service. Each of the Company and the Guarantor further agrees that service of process upon the Process Agent and written notice of said service to such party shall be deemed in every respect effective service
of process upon the Company, in any such legal suit, action or proceeding. Nothing herein shall affect the right of any holder or any person controlling any holder to serve process in any other manner permitted by law. 
 (k) Additional Amounts. If any amounts to be received by the Initial Purchasers or the Holders under this Agreement are subject to any present or
future 

  

 24 

 
taxes, assessments, deductions, withholdings, governmental charges or charges of any nature imposed or levied by or on behalf of Mexico or any political
subdivision thereof or taxing authority therein (“Mexican Taxes”), then the Company and the Guarantor shall, jointly and severally, pay to the Initial Purchasers and the Holders, an additional amount so that the Initial Purchasers
and the Holders, shall retain, after taking into consideration all such Mexican Taxes, an amount equal to the amounts owed to them under this Agreement as if such amounts had not been subject to Mexican Taxes. If any Mexican Taxes are collected by
deduction or withholding, the Company and the Guarantor shall, upon request provide to the Initial Purchasers and the Holders, copies of documentation evidencing the transmittal to the proper authorities of the amount of Mexican Taxes deducted or
withheld. Notwithstanding the preceding sentences of this Section 6(k), any withholding or deduction of Mexican Taxes in respect of payments under the Notes (as opposed to amounts to be received by the Initial Purchasers or the Holders under
this Agreement) shall be subject to the gross-up provisions of the Notes and the Indenture. 
 (l) Judgment Currency. The Company and
the Guarantor, jointly and severally, shall indemnify the Initial Purchasers and the Holders against any loss incurred by them as a result of any judgment or order against the Company or the Guarantor being given or made and expressed and paid in a
currency (“Judgment Currency”) other than U.S. dollars and as a result of any variation as between (i) the rate of exchange at which the U.S. dollar amount is converted into the Judgment Currency for the purpose of such
judgment or order and (ii) the spot rate of exchange in New York, New York at which the Initial Purchasers on the date of payment of such judgment or order are able to purchase U.S. dollars with the amount of the Judgment Currency actually
received by the Initial Purchasers. The foregoing indemnity shall constitute a separate and independent obligation of the Company and the Guarantor and shall continue in full force and effect notwithstanding any such judgment or order as aforesaid.
The term “spot rate of exchange” shall include any premiums and costs of exchange payable in connection with the purchase of, or conversion into, U.S. dollars. 
 (m) Headings. The headings in this Agreement are for convenience of reference only, are not a part of this Agreement and shall not limit or otherwise affect the meaning hereof. 
 (n) Severability. The remedies provided herein are cumulative and not exclusive of any remedies provided by law. If any term, provision, covenant
or restriction of this Agreement is held by a court of competent jurisdiction to be invalid, illegal, void or unenforceable, the remainder of the terms, provisions, covenants and restrictions set forth herein shall remain in full force and effect
and shall in no way be affected, impaired or invalidated, and the parties hereto shall use their reasonable best efforts to find and employ an alternative means to achieve the same or substantially the same result as that contemplated by such term,
provision, covenant or restriction. It is hereby stipulated and declared to be the intention of the parties that they would have executed the remaining terms, provisions, covenants and restrictions without including any of such that may be hereafter
declared invalid, illegal, void or unenforceable. 
  

 25 

 (o) Governing Law. This Agreement shall be governed by and construed in accordance with the laws
of the State of New York. 
 (p) Miscellaneous. This Agreement contains the entire agreement between the parties relating to the
subject matter hereof and supersedes all oral statements and prior writings with respect thereto. If any term, provision, covenant or restriction contained in this Agreement is held by a court of competent jurisdiction to be invalid, void or
unenforceable or against public policy, the remainder of the terms, provisions, covenants and restrictions contained herein shall remain in full force and effect and shall in no way be affected, impaired or invalidated. The Company, the Guarantor
and the Initial Purchasers shall endeavor in good faith negotiations to replace the invalid, void or unenforceable provisions with valid provisions the economic effect of which comes as close as possible to that of the invalid, void or unenforceable
provisions. 
  

 26 

 IN WITNESS WHEREOF, the parties have executed this Agreement as of the date first written above.

  

			
	Very truly yours,
	
	AMÉRICA MÓVIL, S.A. de C.V.
		
	By:	 	 /s/ Carlos José García Moreno Elizondo

	Name:	 	Carlos José García Moreno Elizondo
	Title:	 	Attorney-in-fact
		
	By:	 	 /s/ Alejandro Cantú Jiménez

	Name:	 	Alejandro Cantú Jiménez
	Title:	 	Attorney-in-fact

  

			
	RADIOMÓVIL DIPSA, S.A. de C.V.
		
	By:	 	 /s/ Daniel Hajj Aboumrad

	Name:	 	Daniel Hajj Aboumrad
	Title:	 	Attorney-in-fact
		
	By:	 	 /s/ Alejandro Cantú Jiménez

	Name:	 	Alejandro Cantú Jiménez
	Title:	 	Attorney-in-fact

  

			
	HSBC SECURITIES (USA) INC.
		
	By	 	 /s/ Andrew Lazerus

	Name:	 	Andrew Lazerus
	Title:	 	Senior Vice President

  

			
	UBS SECURITIES LLC
		
	By	 	 /s/ Marcelo Delmar

	Name:	 	Marcelo Delmar
	Title:	 	Managing Director
		 	Latin American – Debt Capital Markets
		
	By	 	 /s/ Antonio Castaño

	Name:	 	Antonio Castaño
	Title:	 	Executive Director

  

 27 

 For themselves and as Representatives of the other Initial Purchasers. 
  

 28

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