Document:

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                                                                  Exhibit 10.12

                                           ***Text Omitted and Filed Separately
                                   with the Securities and Exchange Commission.
                                               Confidential Treatment Requested
                                          Under 17 C.F.R. Sections 200.80(b)(4)
                                                                 and 240.24b-2.

                                                                 EXECUTION COPY

                         BP NON-COMPETITION AGREEMENT

                                by and between

                         BP BIOFUELS NORTH AMERICA LLC

                                      and

                             VERENIUM CORPORATION

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                         BP NON-COMPETITION AGREEMENT

   THIS BP NON-COMPETITION AGREEMENT (the "Agreement") is made as of
September 2, 2010 (the "Effective Date"), by and between BP Biofuels North
America LLC, a Delaware limited liability company ("BP") and Verenium
Corporation, a Delaware corporation ("Verenium").

                                   RECITALS

   Verenium and BP have entered into that certain Asset Purchase Agreement
dated as of July 14, 2010 (the "Asset Purchase Agreement"), pursuant to which,
among other things, Verenium will sell to BP, and BP will purchase from
Verenium, all of the assets, rights and properties of Verenium and its
Non-Biofuels Subsidiaries (as defined in the Asset Purchase Agreement) used in
or related to Verenium's lignocellulosic biofuels business and all of the
capital stock of the Biofuels Subsidiaries (as defined in the Asset Purchase
Agreement), but excluding the Excluded Assets (as defined in the Asset Purchase
Agreement) used exclusively in the Enzyme Business (as hereinafter defined); and

   In the interest of protecting the Excluded Assets, the Enzyme Business and
the goodwill associated therewith, Verenium has required as a material
inducement to Verenium entering into the Asset Purchase Agreement and as a
condition precedent to its consummation of the transactions thereunder, that BP
enter into and deliver this Agreement.

   NOW, THEREFORE, for and in consideration of the premises and mutual
covenants contained in this Agreement, to induce the Parties to enter into the
Asset Purchase Agreement and consummate the transactions contemplated thereby,
and for other good and valuable consideration, the receipt and sufficiency of
which are hereby acknowledged by the Parties, Verenium and BP agree as follows:

1. Definitions.

For the purposes of this Agreement, the following terms have the following
meanings:

   1.1 "Affiliate" means any Person that directly, or indirectly through one or
more intermediaries, (a) controls, (b) is controlled by, or (c) is under common
control with, any other Person referred to in this Agreement. As used in this
Section 1.1, "control" means the possession, direct or indirect, of the power
to direct or cause the direction of the management and policies of another
Person, whether through the ownership of voting securities, by contract, or
otherwise. One Person is presumed to control another Person if the first Person
possesses, directly or indirectly, fifty percent (50%) or more of the voting
rights in the second Person entitled to vote at a meeting of shareholders,
members, partners or other equity or ownership interest holders.

   1.2 "Biofuels Affiliates" means, upon the consummation of the transaction
contemplated by the Asset Purchase Agreement, the Biofuels Subsidiaries (as
defined in the Asset Purchase Agreement), their successors and assigns, and any
Affiliate of BP which carries on or conducts any of the LC Business.

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   1.3 "Biomass" means material that originates from any monocotyledonous or
dicotyledonous plant, or an angiosperm, a gymnosperm or a pteridophyte, which
material can be or is intended to be used as a feedstock in the production of
biofuels, including agricultural, food and non-food crops and their residues
and wastes (e.g., normally non-food material from crops such as stalks, leaves,
husks, seed fiber, hulls), forestry residues and wastes (e.g., wood chips,
sawdust, cardboard, pressboard, dead trees, tree branches), municipal solid
waste (e.g., household garbage and paper products), food processing and other
industrial wastes, energy crops (e.g., fast growing trees and grasses grown for
this purpose), including corn stover, switchgrass, and sugar cane bagasse, as
well as trees. Biomass is often significantly composed of cellulose,
hemicelluloses and lignin structures and may also include oil crops and starch
components of crops.

   1.4 "BP" means BP Biofuels North America LLC, a Delaware limited liability
company, or any successor or assign pursuant to Section 11.5.

   1.5 BP License Agreement" means the BP License Agreement between BP and
Verenium, dated the Effective Date, as may be amended in accordance with its
terms.

   1.6 "Confidential Information" means any and all information, data and
technology disclosed and/or provided by any of Verenium or BP or any of their
respective Affiliates, as applicable, and disclosures contemplated hereby,
including, without limitation, any and all methods and/or materials, technical
information, technologies, systems, processes, procedures, know-how, data,
trade secrets (as such are determined under applicable law), samples,
inventions (whether patentable or unpatentable), improvements, methods,
materials and compositions, devices, molecules, genetically engineered
organisms, formulae, illustrations, patent applications, products, works of
authorship, compilations, programs, schematics, designs, drawings, technical
plans, prototypes, production and manufacturing processes and techniques,
research, development activities and plans, specifications, computer programs,
object and source code, databases, passwords, log on identifiers, algorithms,
derivative works, reports, mask works, business and financial data, business
plans, skills and compensation of employees and consultants, pricing, financial
and operational information, information regarding litigation or other
regulatory actions or complaints, marketing plans, customer and supplier
information (including, without limitation, actual or potential customers or
suppliers, customer or supplier lists, and customer or supplier requirements),
regardless of the form in which such information appears, or by which it is
communicated whether in tangible or intangible form, whether or not marked as
confidential or otherwise identified as confidential, and whether or not
stored, compiled or memorialized physically, electronically, graphically,
photographically or in writing, as well as all documents and other information
which contain or reflect or are generated from any of the foregoing.

   1.7 "Disclosing Party" means a Party or its Affiliate that furnishes or
provides access to Confidential Information of such Party or its Affiliate to
another Party or its Affiliate.

   1.8 "Effective Date" means the date as of which this Agreement is made as
set forth in the introductory paragraph.

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   1.9 "Enzyme Business" means the business conducted by Verenium and its
Affiliates as of the Effective Date of research, development, manufacture and
commercialization of enzyme services and products for sale to Third Parties for
use in their businesses, including without limitation, within the biofuels,
specialty industrial processes, food processing and food ingredients, baking
and flour, detergents, cheese and dairy, oil seed processing, pulp and paper,
oil and gas, pharmaceuticals, electronics, diagnostic enzymes, reagents,
transgenic enzymes (non-biofuels), human and animal therapeutic proteins,
prebiotics, probiotics, waste process, water treatment, carbon sequestration,
algae protein expression, non-biofuels fermentation, chemicals, textiles and
animal nutrition and health markets.

   1.10 "Enzyme Improvement Platform Technology" means Gene Site Saturation
Mutagenesis(TM)SM (GSSM(TM)SM) Technology and the Tunable Gene Reassembly(TM)SM
(TGR(TM)SM) Technology, Tailored Multi-Site Combinatorial Assembly (TMSCA) and
procedures, know-how, equipment and computer software related thereto and
developed by Verenium, and the patents and patent applications covering any of
the foregoing as listed and described on Schedule 1.10.

   1.11 "LC Business" means the research, development, manufacture and
commercialization (including without limitation to make or have made, use or
have used, practice or have practiced, improve or have improved, import or have
imported, export or have exported, market or have marketed, distribute or have
distributed, license, sell, offer for sale or have sold) of lignocellulosic
ethanol and other lignocellulosic biofuels and lignocellulosic bioproducts,
lignocellulosic butanol and lignocellulosic diesel biofuels, including without
limitation conversion of cell wall sugars and/or cell wall sugar compounds into
biofuels or bioproducts, (which for the avoidance of doubt excludes starch to
biofuels or bioproducts), carried on or conducted by BP and/or any of its
Affiliates.

   1.12 "Party" means either Verenium or BP and they may be referred to
collectively as "Parties." A reference to a "Party" includes that Party's
successors in title and assigns or transferees permitted in accordance with the
terms of this Agreement.

   1.13 "Person" means any individual, corporation, association, partnership
(general or limited), joint venture, trust, estate, limited liability company,
limited liability partnership, unincorporated organization, government (or any
agency or political subdivision thereof) or other legal entity or organization.

   1.14 "Receiving Party" means any Party or its Affiliate that receives or has
access to Confidential Information of the other Party or its Affiliate.

   1.15 "Territory" is defined in Section 3.

   1.16 "Third Party" means a Person other than the Parties to this Agreement
and their respective Affiliates.

   1.17 "Verenium" means Verenium Corporation, a Delaware corporation, or any
successor or assign pursuant to Section 11.5.

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   1.18 "Verenium License Agreement" means the Verenium License Agreement
between BP and Verenium, dated as of the Effective Date, as may be amended in
accordance with its terms.

   1.19 "Verenium Non-Competition Agreement" means the Verenium Non-Competition
between BP and Verenium, dated as of the Effective Date, as may be amended in
accordance with its terms.

2. Non-Disclosure Restrictive Covenant.

   2.1 To protect Verenium's interest in its Confidential Information that
Verenium is retaining, and to protect the goodwill and value of the Excluded
Assets and the Enzyme Business, during the term of Verenium License Agreement
and for 10 years thereafter, each Party in its capacity as a Receiving Party
(on behalf of itself and its Affiliates) shall hold all Confidential
Information of the Disclosing Party in confidence and shall not disclose, use,
copy, publish, distribute, display, disseminate, provide access to or in any
way disburse any Confidential Information, except: (a) as reasonably necessary
to carry out its responsibilities under this Agreement; (b) as otherwise
allowed under this Agreement; or (c) with written consent of the Disclosing
Party. The Receiving Party will use at least the same standard of care as it
uses to protect proprietary or confidential information of its own (but no less
than reasonable care) to ensure that its and its Affiliates' employees, agents,
consultants and other representatives do not disclose or make any unauthorized
use of the Confidential Information of the Disclosing Party.

   2.2 Exceptions. The obligations set forth in Section 2.1 shall not apply to
any portion of Confidential Information which the Receiving Party can prove by
competent evidence:

      2.2.1. is now, or hereafter becomes, through no act or failure to act on
   the part of the Receiving Party or its Affiliates in breach of this
   Agreement, generally known or available;

      2.2.2. is known by the Receiving Party or its Affiliates at the time of
   receiving such information as evidenced by documentation pre-dating
   disclosure to the Receiving Party or its Affiliates by the Disclosing Party;

      2.2.3. is furnished to the Receiving Party by a Third Party that is free
   to disclose to others without breach of any obligation of confidentiality or
   non-disclosure; or

      2.2.4. was independently developed by the Receiving Party or its
   Affiliates without reference to information provided by the Disclosing
   Party, as evidenced by clear documentation.

   2.3 Permitted Disclosures. The Receiving Party and its Affiliates are
expressly authorized to disclose Confidential Information of the Disclosing
Party as expressly permitted by this Agreement or if and to the extent such
disclosure is reasonably necessary in the following instances:

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      2.3.1. exercising the rights and performing the obligations of the
   Receiving Party under this Agreement;

      2.3.2. prosecuting or defending litigation as permitted by this Agreement;

      2.3.3. complying with applicable laws and regulations;

      2.3.4. disclosure to FDA, DOE, USDA or EPA or any comparable or successor
   government agencies worldwide;

      2.3.5. disclosure to employees, agents, consultants and independent
   contractors of the Receiving Party and its Affiliates only on a need-to-know
   basis and solely as necessary in connection with the performance of this
   Agreement, provided that each disclosee must be bound by similar obligations
   of confidentiality and non-use at least as equivalent in scope as those set
   forth in this Section 2 prior to any such disclosure; or

      2.3.6. disclosure to any bona fide potential investor, investment banker,
   acquirer, merger partner, or other potential financial partner; provided
   that in connection with such disclosure, the Disclosing Party shall inform
   each disclosee of the confidential nature of such Confidential Information
   and use reasonable efforts to cause each disclosee to treat such
   Confidential Information as confidential.

   In the event the Receiving Party or any of its Affiliates is required to
make a disclosure of the Disclosing Party's Confidential Information pursuant
to Section 2.3.2 or 2.3.3, it will, except where impracticable, provide the
Disclosing Party at least sufficient prior written notice of any such
disclosure so that the Disclosing Party may seek a protective order or other
appropriate remedy. Notwithstanding the foregoing, the Receiving Party and its
Affiliates shall take all reasonable action to preserve the confidentiality of
the Confidential Information of the Disclosing Party, including, without
limitation, by cooperating with the Disclosing Party to obtain a protective
order or other appropriate remedy.

   2.4 Notice of Non-Permitted Disclosure. If the Receiving Party becomes aware
of any unauthorized use or disclosure of the Confidential Information of the
Disclosing Party, the Receiving Party shall promptly notify the Disclosing
Party in writing.

3. Non-Competition Restrictive Covenant.

To protect Verenium's interest in the Confidential Information that Verenium is
retaining and to protect the goodwill and value of the Excluded Assets and the
Enzyme Business, BP and its Biofuels Affiliates shall not anywhere in the world
(the "Territory"), engage, directly or indirectly, individually or in
association or in combination with any other Person, as proprietor or owner,
officer, director or shareholder (other than as a passive investor in and
holder of less than five percent (5%) of the equity of any publicly traded
corporation), member or manager of any limited liability company, or as an
employee, agent, independent contractor, consultant, advisor, joint venturer,
trustee, licensee, sublicensee, licensor, sublicensor, principal, partner or
otherwise, whether or not for monetary benefit:

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    (a)provide enzyme products or enzyme services acquired by BP as part of the
       Purchased Assets or as assets of the Biofuels Subsidiaries pursuant to
       the Asset Purchase Agreement to the specific specialty industrial
       processes markets set forth and described in Schedule 3(a) to this
       Agreement for a period of five (5) years from the Effective Date, which
       specific specialty industrial processes markets shall not include any
       biofuels or bioproducts markets in whole or in part, and for avoidance
       of doubt BP shall not sell enzyme products directly for use in
       conventional starch to ethanol processes;

    (b)in the use, licensing, sublicensing or sale of the enzymes or the Enzyme
       Improvement Platform Technology which were acquired or licensed by BP as
       part of the Purchased Assets (as defined in the Asset Purchase
       Agreement) or as assets of the Biofuels Subsidiaries (as defined in the
       Asset Purchase Agreement) pursuant to the Asset Purchase Agreement for
       application outside of the LC Business for two (2) years from the
       Effective Date; provided, however, this Section 3(b) shall not operate
       or be construed to restrict, prohibit or limit BP and its Affiliates
       from internal research and development; and/or

    (c)in the licensing, sublicensing or sale of the Enzyme Improvement
       Platform Technology which was acquired by BP as part of the Purchased
       Assets or as assets of the Biofuels Subsidiaries pursuant to the Asset
       Purchase Agreement to the specific competitors of Verenium set forth and
       described in Schedule 3(c) to this Agreement for five (5) years from the
       Effective Date; provided, however, this Section 3(c) shall not operate
       or be construed to restrict, prohibit or limit BP and its Affiliates
       from (i) internal research and development, or (ii) collaborating,
       developing, manufacturing or otherwise working with, or receiving
       products or services from, any Person listed on Schedule 3(c) for
       purposes of or use in BP's biofuels business (which for the avoidance of
       doubt, does not include a licensing program of the Enzyme Improvement
       Platform Technology which was acquired by BP as part of the Purchased
       Assets or as assets of the Biofuels Subsidiaries pursuant to the Asset
       Purchase Agreement to a third party).

Notwithstanding the foregoing, the restrictions and limitations set forth in
this Section 3 shall not restrict, prohibit or limit, or be construed to
restrict, prohibit or limit the LC Business or BP's Affiliates with respect to:
(x) the sale of all or substantially all of (i) the LC Business, (ii) the
Purchased Assets and/or the Biofuels Subsidiaries, or (iii) BP's or any
Affiliate's assets; (y) the sale of equity securities of BP or its parent
company by the respective parent company thereof; or (z) the sale or issuance
of equity securities by any Affiliate or direct or indirect parent company of
BP, all in any way or at any time.

4. Employee Solicitation and Hiring Restrictive Covenant.

To protect Verenium's interest in the Confidential Information that Verenium is
retaining and to protect the goodwill and value of the Excluded Assets and the
Enzyme Business, BP and its Biofuels Affiliates shall not for a period of two
(2) years from the Effective Date anywhere in the Territory, individually, or
in association or in combination with any other Person, directly or indirectly,
as proprietor or owner, or officer, director or shareholder of any corporation,
or as a

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member or manager of any limited liability company, or as an employee, agent,
independent contractor, consultant, advisor, joint venturer, trustee, licensee,
principal, partner or otherwise, whether or not for monetary benefit:
(a) solicit, encourage, induce or entice any employee or independent contractor
of Verenium or its Affiliates to terminate or modify such person's or entity's
employment, engagement or business relationship with Verenium or its
Affiliates; or (b) hire, whether as an employee or independent contractor, any
Person who is, or that at any time in the twelve (12) month period prior to the
time of such hire had been, employed or retained by Verenium or its Affiliates;
provided, however, that the foregoing provision shall not apply to (i) any
employee or independent contractor if Verenium or its Affiliates has terminated
such employee or independent contractor; or (ii) any employee or independent
contractor who approaches or contacts BP or any of its Biofuels Affiliates in
response to a general solicitation or advertisement regarding employment with
BP or any of its Biofuels Affiliates.

5. Exceptions For Post-Closing Date Acquisitions.

Notwithstanding anything else contained in this Agreement, the provisions of
Section 3 shall not apply to any activities of any Person acquired (pursuant to
a stock or asset acquisition, merger or other form of transaction) by BP or its
Affiliates where 10% or less of the revenues of the acquired Person is from
activities that would violate Section 3 of this Agreement if engaged in by BP
or its Affiliates during the six-month period preceding the date of such
acquisition and as measured during each six-month period thereafter during the
term of the restrictive covenant in Section 3 of this Agreement.

6. Representations and Warranties.

   6.1 Representations and Warranties of Verenium. Verenium represents and
warrants to BP as of the Effective Date: (a) Verenium (i) is a corporation duly
organized, validly existing and in good standing under the laws of its
incorporating jurisdiction, and (ii) has all requisite corporate power and
authority to enter into this Agreement; and (b) this Agreement is a valid and
binding obligation of Verenium enforceable in accordance with its terms, and
does not conflict with any agreement, instrument or understanding, oral or
written, to which it is a party or by which it may be bound, nor violate in any
material respect any law or regulation of any court, governmental body or
administrative or other agency having jurisdiction over it.

   6.2 BP's Representations and Warranties. BP represents and warrants to
Verenium as of the Effective Date: (a) BP (i) is a limited liability company
duly organized, validly existing and in good standing under the laws of its
jurisdiction of formation, and (ii) has all requisite power and authority to
enter into this Agreement; and (b) this Agreement is a valid and binding
obligation of BP enforceable in accordance with its terms, and does not
conflict with any agreement, instrument or understanding, oral or written, to
which it is a party or by which it may be bound, nor violate in any material
respect any law or regulation of any court, governmental body or administrative
or other agency having jurisdiction over it.

7. Equitable Relief and Cumulative Remedies.

BP acknowledges and agrees that Verenium's remedies at law for breach of any of
the provisions of this Agreement would be inadequate and, in recognition of
this fact, BP agrees that, in the

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event of such breach, in addition to any remedies at law it may have, Verenium,
without posting any bond, shall be entitled to obtain equitable relief in the
form of specific performance, a temporary restraining order, a temporary or
permanent injunction or any other equitable remedy that may be available. BP
further acknowledges that should BP or its Biofuels Affiliates violate any of
the provisions of this Agreement, it will be difficult to determine the amount
of damages resulting to Verenium and that in addition to any other remedies it
may have, Verenium shall be entitled to temporary and permanent injunctive
relief without the necessity of proving damages. The remedies of the Parties
are cumulative and not exclusive, and except as otherwise expressly provided in
this Agreement to the contrary, each Party shall have all rights and remedies
available under this Agreement, at law or in equity.

8. Acknowledgement.

Each of Verenium and BP acknowledge and agree that the covenants and agreements
contained in this Agreement have been negotiated in good faith by the Parties,
are reasonable and are not more restrictive or broader than necessary to
protect the interests of the Parties thereto, and would not achieve their
intended purpose if they were on different terms or for periods of time shorter
than the periods of time provided herein or applied in more restrictive
geographical areas than are provided herein. Each Party further acknowledges
that the other Party would not enter into the Asset Purchase Agreement and the
transactions contemplated thereby in the absence of the covenants and
agreements contained in this Agreement.

9. Separate Covenants.

The covenants contained in this Agreement shall be construed as a series of
separate covenants, one for each of the counties in each of the states of the
United States of America, and one for each geographic subdivision of each
country and each province or state within each such country.

10.Severability.

The Parties agree that construction of this Agreement shall be in favor of its
reasonable nature, legality and enforceability, and that any construction
causing unenforceability shall yield to a construction permitting
enforceability. It is agreed that the restrictive covenants and provisions of
this Agreement are severable, and that if any single covenant or provision or
multiple covenants or provisions should be found unenforceable, the entire
Agreement and remaining covenants and provisions shall not fail but shall be
construed as enforceable without any severed covenant or provision in
accordance with the tenor of this Agreement. The Parties specifically agree
that no covenant or provision of this Agreement shall be invalidated because of
overbreadth insofar as the Parties acknowledge the scope of the covenants and
provisions contained herein to be reasonable and necessary for the protection
of each of Verenium and BP. However, should a court or any other trier of fact
or law determine not to enforce any covenant or provision of this Agreement as
written due to overbreadth or otherwise, then the Parties agree that said
covenant or provision shall be enforced to the extent reasonable, with the
court or such trier to make any necessary revisions to said covenant or
provision to permit its enforceability and that any such limitation on the
enforceability of any such covenant or provision shall not effect the
enforceability of any other covenant or provision of this Agreement.

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11.General Provisions.

   11.1 Governing Law. This Agreement will be governed and construed in
accordance with the laws of the State of New York, United States of America, to
the exclusion of both its principles and rules on conflicts of laws and the
provisions of the United Nations Convention on Contracts for the International
Sale of Goods.

   11.2 Submission to Jurisdiction. Each Party hereby: (a) agrees to the
personal jurisdiction of any federal or state court located in New York, New
York with respect to any claim or cause of action arising under or relating to
this Agreement; (b) waives any objection based on forum non conveniens and
waives any objection to venue of any such suit, action or proceeding;
(c) waives personal service of any and process upon it; and (d) consents that
any services of process be made by registered or certified mail (postage
prepaid, return receipt requested) directed to it at its address stated in
Section 11.9 and service so made will be complete when received. Nothing in
this Section 11.2 will affect the rights of the Parties to serve legal process
in any other manner permitted by law.

   11.3 Waiver of Trial by Jury. EACH OF THE PARTIES HERETO HEREBY IRREVOCABLY
AND UNCONDITIONALLY WAIVES ANY RIGHT IT MAY HAVE TO TRIAL BY JURY IN CONNECTION
WITH ANY LITIGATION ARISING OUT OF OR RELATING TO THIS AGREEMENT OR ANY OF THE
OTHER RESTRICTIVE COVENANTS CONTEMPLATED HEREBY.

   11.4 Independent Contractors. The Parties shall perform their obligations
under this Agreement as independent contractors, and nothing in this Agreement
is intended or will be deemed to constitute a partnership, agency or
employer-employee relationship among the Parties. None of the Parties will have
any right, power or authority to assume, create, or incur any expense,
liability, or obligation, express or implied, on behalf of any other Party.

   11.5 Assignment. Neither this Agreement nor any rights or obligations
hereunder may be assigned or otherwise transferred directly or indirectly
(including without limitation by merger including by or through merger of a
subsidiary, sale of stock, sale of assets, transfer by operation of law or
change in control or otherwise), by any Party without the prior written consent
of BP (in the case of any assignment or transfer by Verenium), or Verenium (in
the case of any assignment or transfer by BP), which consent shall not be
unreasonably withheld. This Agreement shall be binding upon successors and
permitted assigns of the Parties.

   11.6 Entire Agreement; Amendment; Waiver. This Agreement, together with all
exhibits attached hereto which are hereby incorporated by reference, the Asset
Purchase Agreement, the BP License Agreement, the Verenium License Agreement,
the Verenium Non-Competition Agreement and the other agreements by or among the
Parties expressly referred to herein or in the Asset Purchase Agreement, the
terms and conditions of which are herby incorporated by reference, constitutes
and contains the entire understanding and agreement of the Parties respecting
the subject matter hereof and cancels and supersedes any and all prior and
contemporaneous negotiations, correspondence, understandings, and agreements
between the Parties, whether oral or written, regarding the subject matter
hereof. No waiver, modification, or amendment of any provision of this
Agreement will be valid or effective unless

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made in writing and signed by a duly authorized officer of each of the Parties.
A waiver by a Party of any of the terms and conditions of this Agreement in any
instance will not be deemed or construed to be a waiver of such term or
condition for the future, or of any subsequent breach hereof.

   11.7 Further Assurances. Each Party agrees that, subsequent to the execution
and delivery of this Agreement and without any additional consideration, it
will execute and deliver any further legal instruments and perform any acts
which are or may become reasonably necessary to effectuate the purposes of this
Agreement.

   11.8 No Third Party Beneficiaries. This Agreement is neither expressly or
impliedly made for the benefit of any Third Party.

   11.9 Notices. Any notice to be given under this Agreement shall be in
writing and shall be considered to be given and received in all respects when
hand delivered, upon written confirmation of delivery after being sent by
prepaid express or courier delivery service, upon confirmation of receipt when
sent by facsimile transmission or three days after deposited in the United
States mail, certified mail, postage prepaid, return receipt requested, in each
case addressed as follows, or to such other address as shall be designated by
notice duly given:

<TABLE>
<S>                                       <C>
If to Verenium:                           If to BP:

Verenium Corporation                      BP Biofuels North America LLC
55 Cambridge Parkway                      Attention: Director of Business Development
Cambridge, MA 02142                       150 West Warrenville Road
Attention: Chief Legal Officer and Chief  Naperville, IL 60563
Financial Officer                         Fax: (630) 836-5855
Fax: (617) 674-5353
</TABLE>

   11.10 Interpretation.

      (a) Captions, Headings and Recitals. The captions and headings of clauses
   contained in this Agreement preceding the text of the articles, sections,
   subsections and paragraphs hereof are inserted solely for convenience and
   ease of reference only and shall not constitute any part of this Agreement,
   or have any effect on its interpretation or construction. The recitals
   appearing at the beginning of this Agreement are incorporated into this
   terms and conditions in full by this reference thereto.

      (b) Singular and Plural. All references in this Agreement to the singular
   shall include the plural where applicable, and all references to gender
   shall include both genders.

      (c) Articles, Sections and Subsections. Unless otherwise specified,
   references in this Agreement to any article shall include all sections,
   subsections, and paragraphs in such article; references in this Agreement to
   any section shall include all subsections and paragraphs in such sections;
   and references in this Agreement to any subsection shall include all
   paragraphs in such subsection.

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      (d) Ambiguities. Ambiguities and uncertainties in this Agreement, if any,
   shall not be interpreted against any Party, irrespective of which Party may
   be deemed to have caused the ambiguity or uncertainty to exist.

      (e) English Language. This Agreement has been prepared in the English
   language and the English language shall control its interpretation. In
   addition, all notices required or permitted to be given hereunder, and all
   written, electronic, oral or other communications between the Parties
   regarding this Agreement shall be in the English language.

   11.11 Counterparts. This Agreement may be executed simultaneously in
counterparts, including by transmission of facsimile or PDF copies of signature
pages to the Parties or their representative legal counsel, any one of which
need not contain the signature of more than one Party but both such
counterparts taken together will constitute one and the same agreement.

                    [Remainder of Page Intentionally Blank]

                                      11

<PAGE>

   IN WITNESS WHEREOF, the Parties hereto have caused this Agreement to be
executed by their respective duly authorized officers, effective as of the
Effective Date.

Verenium Corporation                     BP Biofuels North America LLC

By:                                      By:
     ----------------------------------       ---------------------------------
     Name:  Carlos A. Riva
     Title:   President and Chief             Name:  Susan A. Ellerbusch
     Executive Officer                        Title:   President

                [Signature Page - BP Non-Competition Agreement]

<PAGE>

                                 Schedule 1.10
                    Enzyme Improvement Platform Technology

[To Be Provided]

                [Signature Page - BP Non-Competition Agreement]

<PAGE>

                                 Schedule 3(a)
                    Specialty Industrial Processes Markets

Chemical Processes
Agricultural Processes
Petroleum Processes
Human Health and Nutrition
Animal Health and Nutrition
Waste Treatment Processes
Carbon Sequestration Processes

                                       2

<PAGE>

                                 Schedule 3(c)
                      Competitors of the Enzyme Business

[...***...]Additional Notes Supplement dated as of March 8, 2011

 Exhibit 4.5 
 Execution Version 
  

 
  

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

as Guarantor 
 and

 The Bank of New York Mellon (as successor to JP Morgan Chase Bank), 

as Trustee 
  

 
 ADDITIONAL
NOTES SUPPLEMENT 
 Dated as of March 8, 2011 
 To 
 FOURTH SUPPLEMENTAL INDENTURE 

Dated as of November 3, 2004 
  

 
 5.750% Senior
Notes due 2015 
  
  

 

  

 ADDITIONAL NOTES SUPPLEMENT, dated as of March 8, 2011 (this “Additional Notes
Supplement”), to the Fourth Supplemental Indenture, dated as of November 3, 2004 (the “Fourth Supplemental Indenture”), among América Móvil, S.A.B. de C.V., a sociedad anónima bursátil de capital
variable organized and existing under the laws of the United Mexican States (“Mexico”) (the “Company”), having its principal office at Lago Zurich 245, Edificio Telcel, Colonia Granada Ampliación, Delegación
Miguel Hidalgo, 11529, México D.F., México, Radiomóvil Dipsa, S.A. de C.V., a sociedad anónima de capital variable organized and existing under the laws of Mexico (the “Guarantor”), having its principal
office at Lago Zurich 245, Edificio Telcel, Colonia Granada Ampliación, Delegación Miguel Hidalgo, 11529, México D.F., México and The Bank of New York Mellon (as successor to JPMorgan Chase Bank), a corporation duly
organized and existing under the laws of the State of New York authorized to conduct a banking business, as Trustee (the “Trustee”), to the Indenture, dated as of March 9, 2004, among the Company, the Guarantor and the Trustee (the
“Base Indenture”). 
 W I T N E S S E T H: 
 WHEREAS, the Company, the Guarantor and the Trustee have executed the Base Indenture on March 9, 2004 and the Fourth Supplemental Indenture on November 3, 2004 in connection with the
Company’s original issuance of U.S.$500,000,000 5.750% Senior Notes due 2015 (the “Initial Notes”); 
 WHEREAS,
the Company desires to issue an additional U.S.$238,814,000 aggregate principal amount of its 5.750% Senior Notes due 2015 (the “Additional Notes”) in connection with its exchange offer for any and all outstanding 5.50% Senior Notes due
2015 of Teléfonos de México, S.A.B. de C.V.; 
 WHEREAS, Section 201 of the Fourth Supplemental Indenture
provides for the issuance from time to time thereunder of additional notes by the Company with terms and conditions identical to those of the Initial Notes (except for the issue date, the date from which interest shall accrue and first be paid, the
inclusion of legends restricting transfer and registration rights and, until the exchange offer under the Registration Rights Agreement (as defined below) has been completed or a shelf registration statement has been filed, CUSIP and ISIN numbers
and fungibility for trading purposes), which additional notes will be consolidated and form a single series with the Initial Notes; 
 WHEREAS, the Company has duly authorized the execution and delivery of this Additional Notes Supplement to create and issue the Additional Notes under the Fourth Supplemental Indenture and the Base
Indenture; 
 WHEREAS, the Guarantor has duly authorized the execution and delivery of this Additional Notes Supplement to
provide for its Guarantees of the Additional Notes; 
 WHEREAS, pursuant to Section 201 of the Fourth Supplemental
Indenture, the Company, the Guarantor and the Trustee are authorized to execute and deliver this Additional Notes Supplement, without the consent of any Holder; and 

  

 WHEREAS, all things necessary to make this Additional Notes Supplement, together with the
Base Indenture and the Fourth Supplemental Indenture, a valid agreement of the Company and the Guarantor, in accordance with their terms, have been done. 
 NOW, THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, the Company, the Guarantor and the Trustee mutually covenant
and agree for the equal and ratable benefit of the holders of the Additional Notes as follows: 
 SECTION 1. Unless otherwise
defined in this Additional Notes Supplement, terms defined in the Fourth Supplemental Indenture are used herein as therein defined. 
 SECTION 2. The following terms have the meanings given to them in this Section 2: 
 “Registration Default” means the 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 Additional Notes in accordance therewith. 
 “Registration Rights Agreement” means
the Registration Rights Agreement, dated as of March 8, 2011, among the Company, the Guarantor and Merrill Lynch, Pierce, Fenner & Smith Incorporated, as Dealer Manager, as such agreement may be amended from time to time. 

SECTION 3. Except insofar as otherwise expressly provided in this Additional Notes Supplement, all the definitions, provisions, terms and
conditions of the Base Indenture and the Fourth Supplemental Indenture shall remain in full force and effect. The Base Indenture and the Fourth Supplemental Indenture, as supplemented by this Additional Notes Supplement, are in all respects ratified
and confirmed, and the Base Indenture, the Fourth Supplemental Indenture and this Additional Notes Supplement shall be read, taken and considered as one and the same instrument for all purposes with respect to the Additional Notes. 

SECTION 4. The Additional Notes are being originally issued by the Company on the date hereof in an aggregate principal amount of
U.S.$238,814,000, which, together with the Guarantor’s Guarantees (in substantially the form attached as Exhibit B hereto) duly annexed thereto, shall increase the aggregate principal amount of, and shall be consolidated and form a single
series with, the Initial Notes. The Additional Notes will vote together with the Initial Notes as from March 8, 2011. 

SECTION 5. The Stated Maturity of the Additional Notes shall be January 15, 2015. The Additional Notes shall bear interest at the
rate of 5.750% per annum from March 8, 2011. 
 SECTION 6. The Additional Notes shall be issued in fully registered
certificated global form without coupons, and in minimum denominations of U.S.$100,000 and integral multiples of U.S.$1,000 in excess thereof. The Additional Notes and the Trustee’s certificate of authentication shall be substantially in the
form of Exhibit A hereto. 

  
 2 

 SECTION 7. The terms and provisions of the Additional Notes, the form of which is set forth
in Exhibit A hereto, shall constitute, and are hereby expressly made, a part of this Additional Notes Supplement and, to the extent applicable, the Company, the Guarantor and the Trustee, by their execution and delivery of this Additional Notes
Supplement, expressly agree to such terms and provisions and to be bound thereby. 
 SECTION 8. The transfer certificates for
transfers from (i) Restricted Global Note to Regulation S Global Note, (ii) Restricted Global Note to Unrestricted Global Note and (iii) Regulation S Global Note or Unrestricted Global Note to Restricted Global Note shall be
substantially in the form of Exhibits C, D and E hereto, respectively. 
 SECTION 9. This Additional Notes Supplement shall be
governed by, and construed in accordance with, the law of the State of New York. The parties hereto ratify the provisions of Sections 113 and 115 of the Base Indenture with respect to this Additional Notes Supplement, as if such provisions were set
forth in their entirety herein. 
 SECTION 10. This Additional Notes Supplement may be executed in any number of counterparts,
each of which so executed shall be an original, but all of them together represent the same agreement. 
 SECTION 11. The
Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Additional Notes Supplement or for or in respect of the recitals contained herein, all of which recitals are made by the Company and
the Guarantor. 
 [Signature page follows] 

  
 3 

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

					
	AMÉRICA MÓVIL, S.A.B. DE C.V.,
		 	as Issuer
		
	By:	 	/s/ Carlos José García Moreno Elizondo
		 	Name:	 	Carlos José García Moreno Elizondo
		 	Title:	 	Chief Financial Officer
		
	By:	 	/s/ Alejandro Cantú Jiménez
		 	Name:	 	Alejandro Cantú Jiménez
		 	Title:	 	General Counsel
	
	RADIOMÓVIL DIPSA, S.A. DE C.V.,
		 	as Guarantor
		
	By:	 	/s/ Fernando Benjamín Ocampo Carapia
		 	Name:	 	Fernando Benjamín Ocampo Carapia
		 	Title:	 	Chief Financial Officer
		
	By:	 	/s/ Alejandro Cantú Jiménez
		 	Name:	 	Alejandro Cantú Jiménez
		 	Title:	 	General Counsel
	
	THE BANK OF NEW YORK MELLON,
		 	 as Trustee, Security Registrar, Principal Paying
 Agent and Transfer Agent

		
	By:	 	/s/ Erika Walker
		 	Name:	 	Erika Walker
		 	Title:	 	Vice President

 [Signature Page to
Additional Notes Supplement for 2015 Notes] 

  

 EXHIBIT A 
 FORM OF ADDITIONAL NOTE 
 [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
FURTHER SUPPLEMENTED BY THE FOURTH SUPPLEMENTAL INDENTURE HEREINAFTER REFERRED TO, AND IS REGISTERED IN THE NAME OF THE DEPOSITARY OR A NOMINEE OF THE DEPOSITARY, WHICH MAY BE TREATED BY AMÉRICA MÓVIL, S.A.B. DE C.V., THE TRUSTEE AND
ANY AGENT THEREOF AS OWNER AND HOLDER OF THIS NOTE FOR ALL PURPOSES.] 
 [INCLUDE IF NOTE IS A GLOBAL NOTE AND THE DEPOSITARY
IS THE DEPOSITORY TRUST COMPANY – UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY TO AMÉRICA MÓVIL, S.A.B. DE C.V. OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR
PAYMENT, AND ANY CERTIFICATE ISSUED IN EXCHANGE FOR THIS CERTIFICATE OR ANY PORTION HEREOF IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (AND
ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON OTHER THAN THE
DEPOSITORY TRUST COMPANY OR A NOMINEE THEREOF IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN. 
 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 FURTHER SUPPLEMENTED BY THE FOURTH
SUPPLEMENTAL INDENTURE, THIS GLOBAL NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY
SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY.] 
 [INCLUDE IF NOTE IS A RESTRICTED GLOBAL
NOTE (UNLESS, PURSUANT TO SECTION 203 OF THE FOURTH SUPPLEMENTAL INDENTURE, THE COMPANY DETERMINES AND CERTIFIES TO THE TRUSTEE THAT THE LEGEND MAY BE REMOVED – NONE OF THIS GLOBAL NOTE, ANY BENEFICIAL INTEREST HEREIN OR THE GUARANTEE
HEREOF HAS BEEN REGISTERED UNDER THE U.S. SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”). NONE OF THIS GLOBAL NOTE, ANY BENEFICIAL INTEREST HEREIN OR THE GUARANTEE 

  
 A-1

 
HEREOF MAY BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED EXCEPT (1) TO A PERSON WHO 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 IN COMPLIANCE WITH RULE 903 OR RULE
904 OF REGULATION S UNDER THE SECURITIES ACT, (3) PURSUANT TO AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT (IF AVAILABLE) OR (4) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT. AS A CONDITION TO
REGISTRATION OF TRANSFER OF THIS GLOBAL NOTE IN ACCORDANCE WITH CLAUSE (3) ABOVE, AMÉRICA MÓVIL, S.A.B. 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 SUCH CLAUSE (3), 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 203 OF THE FOURTH SUPPLEMENTAL INDENTURE, THE COMPANY
DETERMINES AND CERTIFIES TO THE TRUSTEE THAT THE LEGEND MAY BE REMOVED – NONE OF THIS GLOBAL NOTE, ANY BENEFICIAL INTEREST HEREIN OR THE GUARANTEE HEREOF HAS 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 THIS GLOBAL NOTE IS REGISTERED UNDER THE SECURITIES ACT OR AN EXEMPTION FROM THE
REGISTRATION REQUIREMENTS THEREOF IS AVAILABLE.] 

  
 A-2

 AMÉRICA MÓVIL, S.A.B. DE C.V. 

5.750% Senior Notes due 2015 
 [If Restricted Global Note – CUSIP Number: 02364W AY1 / ISIN Number: US02364WAY12 / Common Code: 059844709] 
 [If Regulation S Global Note – CUSIP Number: P0280A ED9 / ISIN Number: USP0280AED92 / Common Code: 059844806] 

 

			
	 No. [R- ][S- ]
	  	U.S.$ [•]

América Móvil, S.A.B. de C.V. (herein called the “Company”, which term includes any successor Person under the
Indenture hereinafter referred to, as further supplemented by the Fourth Supplemental Indenture hereinafter referred to), a corporation (sociedad anónima bursátil de capital variable) organized and existing under the laws of the
United Mexican States (“Mexico”), for value received, hereby promises to pay to Cede & Co., as nominee for The Depository Trust Company, or registered assigns, the principal sum of [•] Dollars or such other principal amount
(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 further supplemented by the Fourth Supplemental Indenture, on January 15, 2015 (unless earlier redeemed, in
which case, on the applicable Redemption Date), and to pay interest thereon from March 8, 2011 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
January 15 and July 15 in each year, commencing on July 15, 2011 at the rate of 5.750% per annum, until the principal hereof is paid or made available for payment, provided 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. 
 The interest so payable, and punctually paid or duly provided for, on any Interest Payment Date shall, as provided in such Indenture and the Fourth 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 30 or 

  
 A-3

 
December 31 (whether or not a Business Day), as the case may be, next preceding such Interest Payment Date, 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 Notes not less than 10 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 or Fourth Supplemental Indenture. Interest on this Note shall be computed on the basis set forth in the Indenture and Fourth Supplemental Indenture. 

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, maintained for such purpose and at any other office or agency maintained by the Company for such purpose, in such coin or currency of the United States of America as at the time of payment is legal tender for
payment of public and private debts against surrender of this Note in the case of any payment due at the Maturity of the principal thereof (other than any payment of interest that first becomes payable on a day other than an Interest Payment Date);
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 10 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. Notwithstanding the foregoing, payment of any amount payable in respect of a Global Note shall be made in accordance
with the Applicable Procedures of the Depositary. 
 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 and Fourth Supplemental Indenture or be valid or obligatory for any purpose. 

  
 A-4

 IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed. 

Dated: March 8, 2011 
  

			
	AMÉRICA MÓVIL, S.A.B. DE C.V.
		
	By:	 	 
		 	Name:
		 	Title:
		
	By:	 	 
		 	Name:
		 	Title:

 This is one of the Notes
referred to in the within mentioned Indenture. 
 Dated: March 8, 2011 

 

			
	THE BANK OF NEW YORK MELLON,
		 	as Trustee
		
	By:	 	 
		 	Authorized Officer

  
 A-5

 [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 and as previously
supplemented by the First Supplemental Indenture dated as of March 9, 2004, the Second Supplemental Indenture dated as of March 9, 2004 and the Third Supplemental Indenture dated as of April 27, 2004 (herein called the
“Indenture”, which term shall have the meaning assigned to it in such instrument), as further supplemented by the Fourth Supplemental Indenture dated as of November 3, 2004, as supplemented on March 8, 2011 by the Additional
Notes Supplement (the “Fourth Supplemental Indenture”), among the Company, Radiomóvil Dipsa, S.A. de C.V., a corporation (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 Mellon (as successor to JPMorgan Chase Bank), as Trustee (the “Trustee”, which term includes any successor trustee
under the Indenture), and reference is hereby made to the Indenture, as further supplemented by the Fourth 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 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. 

In the event of redemption of this Note in part only, a new Note of this series and of like tenor for the unredeemed portion hereof shall
be issued in the name of the Holder hereof upon the cancellation hereof. 
 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 further supplemented by the Fourth 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 

  
 A-6

 
other than the ownership or holding of such Note and 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; 

(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; and 
 (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. 
 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 

  
 A-7

 
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. 
 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. 

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 Fourth Supplemental Indenture or the issuance of the Notes. 

All references herein, in the Indenture, the Fourth Supplemental Indenture, the Notes or the Guarantees, to principal, premium, if any,
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, premium, 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 Fourth Supplemental Indenture, the Notes and the Guarantees to principal in respect of any Note
shall be deemed to mean and include any Redemption Price or Repurchase Price payable in respect of such Note pursuant to any redemption or repurchase right hereunder (and all such references to the Stated Maturity of the principal in respect of any
Note shall be deemed to mean and include the Redemption Date with respect to any such Redemption Price and the Repurchase Date with respect to any such Repurchase Price), and all such references to principal, premium, 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: 

  
 A-8

 (i) 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 on or after the date of the Fourth Supplemental Indenture, 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 10%; and 
 (ii) in whole or in part, at a Redemption Price equal to the greater of (A) 100% of the principal amount of such Notes and (B) the sum of the present values of the remaining scheduled payments
of principal and interest thereon (exclusive of interest accrued to the date of redemption) discounted to the Redemption Date on a semiannual basis (assuming a 360-day year consisting of twelve 30-day months) at, in each case, the Treasury Rate plus
25 basis points, plus, in the case of (A) and (B), accrued interest on the principal amount of such Notes to (but not including) the date of redemption. 
 For purposes of Clause (ii) above, the following terms shall have the specified meanings: 
 “Treasury Rate” means, with respect to any Redemption Date, the rate per annum equal to the semiannual equivalent yield to maturity or interpolated maturity (on a day count basis) of the
Comparable Treasury Issue, assuming a price for the Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable Treasury Price for such Redemption Date. 

“Comparable Treasury Issue” means the United States Treasury security or securities selected by an Independent Investment
Banker as having an actual or interpolated maturity comparable to the remaining term of the Notes to be redeemed that would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate
debt securities of a comparable maturity to the remaining term of such notes. 
 “Independent Investment Banker” means
one of the Reference Treasury Dealers appointed by the Company. 
 “Comparable Treasury Price” means, with respect to
any Redemption Date, (x) the average of the Reference Treasury Dealer Quotations for such Redemption Date, after excluding the highest and lowest such Reference Treasury Dealer Quotation or (y) if the Trustee obtains fewer than four such
Reference Treasury Dealer Quotations, the average of all such quotations. 

  
 A-9

 “Reference Treasury Dealer” means each of Citigroup Global Markets Inc. and Credit
Suisse First Boston LLC or their Affiliates which are primary United States government securities dealers and two other leading primary United States government securities dealers in New York City reasonably designated by the Company; provided,
however, that if any of the foregoing shall cease to be a primary United States government securities dealer in New York City (a “Primary Treasury Dealer”), the Company shall substitute therefor another Primary Treasury Dealer. 

“Reference Treasury Dealer Quotation” means, with respect to each Reference Treasury Dealer and any Redemption Date, the
average, as determined by the Trustee, of the bid and asked prices for the Comparable Treasury Issue (expressed in each case as a percentage of its principal amount) quoted in writing to the Trustee by such Reference Treasury Dealer at 3:30 pm New
York time on the third Business Day preceding such Redemption Date. 
 The Indenture, as further supplemented by the Fourth
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 further supplemented by the Fourth 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 further supplemented by the Fourth
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 further supplemented by the Fourth Supplemental Indenture, the Holder of this Note shall not have the right to institute any proceeding with respect to the Indenture or the Fourth
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 premium and interest hereon on or
after the respective due dates expressed herein. 

  
 A-10

 No reference herein to the Indenture or the Fourth Supplemental Indenture and no provision
of this Note or of the Indenture or the Fourth Supplemental Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay the principal of and any premium and interest on this Note at the times, place and
rate, and in the coin or currency, herein prescribed. 
 As provided in the Indenture, as further supplemented by the Fourth
Supplemental Indenture and subject to certain limitations therein set forth (including, without limitation, the restrictions on transfer under Sections 202 and 203 of the Fourth 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 premium and 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 U.S.$100,000 and integral multiples of U.S.$1,000 in excess thereof. As provided in the Indenture, as further
supplemented by the Fourth 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. 

This Note is a Global Note and is subject to the provisions of the Indenture and the Fourth Supplemental Indenture relating to Global
Notes, including the limitations in Section 203 of the Fourth Supplemental Indenture on transfers and exchanges of Global Notes. 
 This Note, the Guarantees and the Indenture and the Fourth 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 further supplemented by the Fourth Supplemental Indenture, shall have
the meanings assigned to them in the Indenture, as further supplemented by the Fourth Supplemental Indenture. 
  

 

  
 A-11

 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

survivorship and not as tenants in

common
	  	Gifts to Minors Act_______________
	  	
		
		  	(State)

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

  
 A-12

 EXHIBIT B 
 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 and as previously supplemented by the First Supplemental Indenture dated
as of March 9, 2004, the Second Supplemental Indenture dated as of March 9, 2004 and the Third Supplemental Indenture dated as of April 27, 2004 (herein called the “Indenture”, which term shall have the meaning assigned to
it in such instrument), as further supplemented by the Fourth Supplemental Indenture, dated as of November 3, 2004, as supplemented on March 8, 2011 by the Additional Notes Supplement (the “Fourth Supplemental Indenture”), among
América Móvil, S.A.B. de C.V., the Guarantor and The Bank of New York Mellon (as successor to JPMorgan Chase Bank), as Trustee, the full and punctual payment when due, whether at maturity, upon redemption, by acceleration or otherwise,
of the principal of, premium, if any, and interest on, and any other amounts due under the Notes and all other obligations of the Company under the Indenture, as further supplemented by the Fourth Supplemental Indenture. Capitalized terms used but
not defined herein shall have the respective meanings given to them in the Indenture, as further supplemented by the Fourth Supplemental Indenture. 
 The obligations of the Guarantor to the Holders and to the Trustee pursuant to this Guarantee and the Indenture, as further supplemented by the Fourth 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 further supplemented by the Fourth Supplemental Indenture, are expressly set forth, to the extent and in the manner provided, in Article Eleven of the Indenture, as further supplemented by the Fourth Supplemental Indenture, and
reference is hereby made to such Indenture, as further supplemented by the Fourth 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

  
 B-1

 
Trustee under the Indenture, as further supplemented by the Fourth 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 further supplemented by the Fourth Supplemental
Indenture. 

  
 B-2

 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:

  
 B-3

 EXHIBIT C 
 FORM OF TRANSFER CERTIFICATE 
 FOR TRANSFER FROM RESTRICTED GLOBAL

 NOTE TO REGULATION S GLOBAL NOTE 
 (Transfers pursuant to § 203(b)(i) 
 of the Fourth Supplemental
Indenture) 
 The Bank of New York Mellon (as successor to JPMorgan Chase Bank) 
     as Trustee 
  

	 	Re:	5.750% Senior Notes due 2015 of 

	 	 	América Móvil, S.A.B. de C.V. (the “Notes”) 

 Reference is hereby made to the Additional Notes Supplement, dated as of March 8, 2011 (the “Additional Notes Supplement”), to the Fourth Supplemental Indenture, dated as of
November 3, 2004 (the “Supplemental Indenture”), among América Móvil, S.A.B. de C.V., as Issuer (the “Issuer”), Radiomóvil Dipsa, S.A. de C.V., as Guarantor (the “Guarantor”) and The Bank of
New York Mellon (as successor to JPMorgan Chase Bank), as Trustee (the “Trustee”), to the Indenture dated as of March 9, 2004 among the Issuer, the Guarantor and the Trustee. Capitalized terms used but not defined herein shall have
the meanings given to them in the Additional Notes Supplement. 
 This letter relates to
U.S.$          principal amount of Notes which are evidenced by one or more Restricted Global Notes (CUSIP No.: 02364W AY1; ISIN No.: US02364WAY12) 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 (CUSIP No.: P0280A ED9; Common Code: 059844806; ISIN No.: USP0280AED92), which amount, immediately after such transfer, is to be held with the Depositary. 

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; 

  
 C-1

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

 

	 	(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 with the Depositary 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 Issuer, the Guarantor and the initial purchasers, if any, of the initial offering of such Notes being transferred. Terms used in this certificate and not otherwise defined in the Additional Notes Supplement
have the meanings set forth in Regulation S or Rule 144. 
  

			
	[Insert Name of Transferor]
		
	By:	 	 
		 	Name:
		 	Title:

 Dated: 

 

	cc:	América Móvil, S.A.B. de C.V. 

	 	Radiomóvil Dipsa, S.A. de C.V. 

  
 C-2

 EXHIBIT D 
 FORM OF TRANSFER CERTIFICATE 
 FOR TRANSFER FROM RESTRICTED GLOBAL

 NOTE TO UNRESTRICTED GLOBAL NOTE 
 (Transfers Pursuant to § 203(b)(ii) 
 of the Fourth Supplemental
Indenture) 
 The Bank of New York Mellon (as successor to JPMorgan Chase Bank) 
     as Trustee 
  

	 	Re:	5.750% Senior Notes due 2015 of 

	 	 	América Móvil, S.A.B. de C.V. (the “Notes”) 

 Reference is hereby made to the Additional Notes Supplement, dated as of March 8, 2011 (the “Additional Notes Supplement”), to the Fourth Supplemental Indenture, dated as of
November 3, 2004 (the “Supplemental Indenture”), among América Móvil, S.A.B. de C.V., as Issuer (the “Issuer”), Radiomóvil Dipsa, S.A. de C.V., as Guarantor (the “Guarantor”) and The Bank of
New York Mellon (as successor to JPMorgan Chase Bank), as Trustee (the “Trustee”), to the Indenture dated as of March 9, 2004 among the Issuer, the Guarantor and the Trustee. Capitalized terms used but not defined herein shall have
the meanings given to them in the Additional Notes Supplement. 
 This letter relates to
U.S.$         principal amount of Notes which are evidenced by one or more Restricted Global Notes (CUSIP No.: 02364W AY1; ISIN No.: US02364WAY12) 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 (CUSIP 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 pre-arranged with a buyer in the United States; 

  
 D-1

 (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 
 (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 Issuer, the Guarantor and the initial purchasers, if any, of the initial offering of such Notes being transferred. Terms used in this certificate and not otherwise
defined in the Additional Notes Supplement 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.B. de C.V. 

	 	Radiomóvil Dipsa, S.A. de C.V. 

  
 D-2

 EXHIBIT E 
 FORM OF TRANSFER CERTIFICATES 
 FOR TRANSFER FROM REGULATION S GLOBAL

 NOTE OR UNRESTRICTED GLOBAL NOTE 
 TO RESTRICTED GLOBAL NOTE 
 (Transfers Pursuant to § 203(b)(iii)

 of the Fourth Supplemental Indenture) 
 [Transferor Certificate] 
 The Bank of New York Mellon (as successor to JPMorgan Chase
Bank) 
     as Trustee 
  

	 	Re:	5.750% Senior Notes due 2015 of 

	 	 	América Móvil, S.A.B. de C.V. (the “Notes”) 

 Reference is hereby made to the Additional Notes Supplement, dated as of March 8, 2011 (the “Additional Notes Supplement”), to the Fourth Supplemental Indenture, dated as of
November 3, 2004 (the “Supplemental Indenture”), among América Móvil, S.A.B. de C.V., as Issuer (the “Issuer”), Radiomóvil Dipsa, S.A. de C.V., as Guarantor (the “Guarantor”) and The Bank of
New York Mellon (as successor to JPMorgan Chase Bank), as Trustee (the “Trustee”), to the Indenture dated as of March 9, 2004 among the Issuer, the Guarantor and the Trustee. Capitalized terms used but not defined herein shall have
the meanings given to them in the Additional Notes Supplement. 
 This letter relates to
U.S.$         principal amount of Notes which are evidenced by one or more [Regulation S Global Notes (CUSIP No.: P0280A ED9; Common Code: 059844806; ISIN No.: USP0280AED92)] [Unrestricted Global Notes
(CUSIP 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 (CUSIP No.: 02364W AY1; ISIN No.: US02364WAY12). 

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. 

  
 E-1

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

			
	[Insert Name of Transferor]
		
	By:	 	 
		 	Name:
		 	Title:

 Dated: 

 

	cc:	América Móvil, S.A.B. de C.V. 

	 	Radiomóvil Dipsa, S.A. de C.V. 

  
 E-2

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