Exhibit 4.44.8

LOGO

JOINDER DEED ISSUED BY THE CORPORATE ENTITIES NAMED THE BANK OF NEW YORK MELLON AND CEMEX
ESPAÑA, S.A.

NUMBER SEVEN HUNDRED FOURTEEN

In the city of Madrid, my residence as of the fifth day of April two thousand eleven.

Before me, RAFAEL MONJO CARRIO, Notary of Madrid and its Illustrious College.

APPEARED

MR. JUAN PERLAZA, of British nationality, with majority of age, with domicile located at and for purposes of this deed located at
Calle José Abascal, 45 in Madrid, bearer of valid Passport Number 300919078.

MR. FRANCISCO JAVIER GARCÍA
RUIZ DE MORALES, with majority of age, with domicile in Madrid located at, and for purposes of this deed, calle Hernández de Tejada, number l; bearer of National Identity Document number 9.772.997-K.



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OFFICIAL TRANSLATION, David A. González Vessi, Authorized Translator from English-Spanish,
Spanish-English, Approval Number 861/2010 dated as of January 25, 2010.

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LEGAL PERSONALITY

The first one, in the name and on behalf of THE BANK OF NEW YORK MELLON (hereinafter referred to as the
Bank), entity incorporated in accordance with the laws of the State of New York (United States of America), with its corporate domicile located at One Wall Street, New York, N.Y. 10286, United States of America, and furthermore,
acting on behalf of and for the benefit of the holders of the Senior Secured Notes in the amount of 800 million United States Dollars, with a floating rate, due 2015 and redeemable between the last interest payment date and the final due
date issued in accordance with an Indenture governed under the laws of the State of New York, issued as of
April 5th, 2011 by and between among others, CEMEX
S.A.B. de C.V., a company duly incorporated under the laws of Mexico, as issuer and The Bank of New York Mellon, as trustee (hereinafter referred, together with its amendments or novations the Indenture). Exercising the current
power of attorney, issued by a Notary Public of the State of New York Mr. Danny Lee, dated as of April 5, 2011, copy of which has been delivered to me, and whose original has been duly apostilled in accordance with The Hague Convention of
October 5, 1961, and delivered to me, which document I will make part of this deed by means of a notarial procedure.

The second one, in the name and on behalf of the corporate entity CEMEX ESPAÑA, S.A., entity governed in accordance
with the laws of Spain (in the past known as Compañía Valenciana de Cementos Pórtland, S.A.), and its



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OFFICIAL TRANSLATION, David A. González Vessi, Authorized Translator from English-Spanish,
Spanish-English, Approval Number 861/2010 dated as of January 25, 2010.

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[SEAL OF RAFAEL MONJO CARRIO.- NOTARY PUBLIC OF MADRID]



corporate domicile in Madrid is located at calle Hernández de Tejada, number 1, whose corporate purpose, among others, is the manufacture, commercialization and distribution of all kinds
of sacks, bags and similar articles, made of paper or any other materials, suitable for cement packaging, etc.

It was
incorporated with un-definitive term by means of a deed authorized by a Notary Public, in the city of Valencia, Mr. Juan Bautista Roch Contelles, dated as of April 30, 1917, duly adapted to the current legislation by means of a deed
authorized by a Notary Public, in the city of Valencia, Mr. Antonio Soto Bisquert, dated as of July 13, 1990; the incorporation of the Company was RECORDED in the Commercial Registry of Valencia in Volume 122, Book 28 regarding
corporations, third section, first inscription; and the adaptation was recorded in such Registry in Volume 2854, Book 10, general section, page V2533, inscription 165; furthermore, the bylaws of the Company were restated by means of another public
deed number 6796 authorized by a Notary Public in Madrid, Mr. Antonio Francés y de Mateo, dated as of August 12, 1993, that caused the inscription number 200th.



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OFFICIAL TRANSLATION, David A. González Vessi, Authorized Translator from English-Spanish,
Spanish-English, Approval Number 861/2010 dated as of January 25, 2010.

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[SEAL OF RAFAEL MONJO CARRIO.- NOTARY PUBLIC OF MADRID]



The Company changed its corporate domicile to the current domicile by means of public
deed number 1,489 authorized by a Notary Public in Valencia, Mr. Antonio Soto Bisquert, dated as of June 29, 1995, and recorded in the Registry of Commerce of Madrid, Volume 9743 and 9744, section 8th, Book of Corporations, pages 1 and
166, sheet number M-156542 inscriptions first and second.

The corporate name of the Company was changed by resolutions
adopted by the General Shareholders Meeting held as of June twenty-four, two thousand two, which were officially formalized before me, the same date, under public deed number 662, causing the inscription number 122o.

The Company is the current bearer of C.I.F. number: A46004214.

Exercising his corporate authority by means of a power of attorney issued by the Board of Directors of the Company during a meeting held as of March twenty-eighth, two thousand eleven, and officially
formalized before me under public deed number 627 issued as of March twenty-eighth, two thousand eleven, as evidenced in the authorized copy of such deed that I attest to have in front of me.

In accordance with the provisions of article 98 of the Law 24/2001, and further to the Resolution issued by the Director General in
charge of Public Registries and Notary Publics dated as of April 12, 2002, I hereby attest that to my knowledge, such individuals have sufficient corporate authority to execute this public deed in accordance with the terms set forth herein.



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OFFICIAL TRANSLATION, David A. González Vessi, Authorized Translator from English-Spanish,
Spanish-English, Approval Number 861/2010 dated as of January 25, 2010.

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[SEAL OF RAFAEL MONJO CARRIO.- NOTARY PUBLIC OF MADRID]



Such individuals have, in accordance with my knowledge, sufficient legal capacity and
legal standing to issue this Joinder Deed and, for such purposes, said individuals on behalf of the companies which they represent and for all legal purposes, make the following:

STATEMENTS

I. That, in accordance with a contract issued by means of a public deed number 4599 dated as of September 29, 2009 (hereinafter referred to as Pledge Deed), CEMEX, S.A.B. de
C.V., New Sunward Holding B.V. and Sunward Acquisitions N.V. (the later one absorbed by New Sunward Holding B.V. as of October 23, 2009) constituted pledge rights (hereinafter referred to as the Pledges) over their shares of
stock of the company CEMEX España, S.A.

II.That, in accordance with a contract issued by means of a public
deed number 5768 dated as of December 23, 2010 issued by Rafael Monjo Carrio (hereinafter referred to as Extension Pledge Deed), New Sunward Holding B.V. (i) constituted new pledge rights with respect to 905 (nine
hundred five) shares of stock of CEMEX España, S.A. , which were acquired from a minority shareholder; and (ii) extended the Pledges to 426.585.515 newly issued shares of CEMEX España, S.A., which were issued by means of a capital



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OFFICIAL TRANSLATION, David A. González Vessi, Authorized Translator from English-Spanish,
Spanish-English, Approval Number 861/2010 dated as of January 25, 2010.

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[SEAL OF RAFAEL MONJO CARRIO.- NOTARY PUBLIC OF MADRID]



stock increase approved during a General Meeting, and such resolutions were formalized under public number 2.419 issued by Rafael Monjo Carrio as of November 19, 2010. Hereinafter, any
references to the Pledges will include the Pledges, as such term was modified upon the extension of the new shares of stock of Cemex España, S.A. issued during such capital stock increase, and the shares acquired from the minority shareholder
acquired from a minority shareholder, and the new Pledges with the same priority rank as a result of the referred Extension Pledge Deed.

III.That, given the improvement in the conditions of the financial markets, it allows Cemex to issue notes to be issued among other things to reduce its debt with financial creditors that are part
of the Creditors Agreement (as such term is defined in the Pledge Deed), CEMEX, S.A.B. de C.V. has requested such financial creditors to make some amendments to the Creditors Agreement for the purpose of increasing the flexibility of the CEMEX Group
to issue notes and to apply the proceeds obtained by such issuances. Such amendments were approved by said financial creditors, and as of December 1, 2009 it was executed an amendment novation agreement that does not extinguish the Creditors
Agreement. As a result of such amendments, it is stated that the creditors of the CEMEX Group, by virtue of the



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OFFICIAL TRANSLATION, David A. González Vessi, Authorized Translator from English-Spanish,
Spanish-English, Approval Number 861/2010 dated as of January 25, 2010.

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[SEAL OF RAFAEL MONJO CARRIO.- NOTARY PUBLIC OF MADRID]



issuance of the notes such as the Indenture, shall be considered as Additional Notes Creditors) and, as a consequence, shall be considered as Secured Parties further to the terms of the
Creditors Agreement, the Pledge Deed and the Extension Pledge Deed, and shall be entitled to obtain the benefits of the Pledges, by means of a joinder of the Pledge Deed and the Extension Pledge Deed in accordance with Clause 16 of the Pledge Deed
and Clause 10 of the Extension Pledge Deed.

IV. That, in accordance with Clause 16 of the Pledge Deed and Clause 10 of
the Extension Pledge Deed, the Secured Parties in which benefit the Guaranty Agent acted, among them the Bank, in its capacity of trustee for the holders of notes issued under the Indenture, may join the Pledge Deed and the Extension Pledge Deed,
and ratify the contents of such deeds, accepting the constituted Pledges in their favor as a guaranty of the corresponding Secured Obligations, my means of appearing before a Notary Public in Madrid, Mr. Rafael Monjo Carrio.

Such joinder agreements shall be formalized by means of a joinder deed, all of which without need of a new consent by the pledgor or the
pledgees, since their consent were granted in accordance with the Creditors Agreement (as such agreement was novated dated as of December 1, 2009 and as of October 25, 2010) and the terms of the Pledge Deed and the Extension Pledge Deed.



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OFFICIAL TRANSLATION, David A. González Vessi, Authorized Translator from English-Spanish,
Spanish-English, Approval Number 861/2010 dated as of January 25, 2010.

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[SEAL OF RAFAEL MONJO CARRIO.- NOTARY PUBLIC OF MADRID]



V. That the Bank hereby expressly state that the joinder agreement referred to in
the foregoing statements is formalized as an execution instrument of the rights granted to the Bank in accordance with the Pledge Deed and the Extension Pledge Deed, in order for the payment obligations related to the Indenture be guaranteed by a
first priority pledge interest over the Shares (as such term is defined in the Pledge Deed), the New Shares and the Acquired Shares (as such terms are defined in the Extension Pledge Deed), concurrently with the remaining Pledges.

VI. That in accordance with the foregoing, the Bank intends to issue this Joinder Deed (hereinafter referred to as the
Deed) in accordance with the following

CLAUSES

FIRST.- JOINDER AGREEMENT TO THE PLEDGE DEED AND THE EXTENSION PLEDGE DEED.

By means of this Deed, the Bank hereby joins, ratify and approve the terms and conditions of the Pledge Deed and the Extension Pledge
Deed, whose entire content the Bank hereby states to know, and such joinder agreement has full value and legal effects, accepting that the payment obligations related to the Indenture be guaranteed by the first priority pledge over the Shares (as
such term is defined in the Pledge Deed), the New Shares and the Acquired Shares (as such terms are defined in the Extension Pledge Deed), concurrently with the remaining Pledges concurrently with the remaining Pledges.



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OFFICIAL TRANSLATION, David A. González Vessi, Authorized Translator from English-Spanish,
Spanish-English, Approval Number 861/2010 dated as of January 25, 2010.

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The Bank hereby REQUEST the undersigned Notary Public, to NOTIFY this Joinder
Agreement to WILMINGTON TRUST (LONDON) LIMITED, with domicile located at 6 Broad Street Place, London EC2M 7JH (attention Elaine K. Lockhart), in its capacity of Guaranty Agent, and the undersigned Notary hereby accept such request.

CEMEX España, S.A. hereby appears to this act for the purpose of notifying itself of the contents of such joinder
agreement.

SECOND. - GOVERNING LAW AND JURISDICTION.

2.1 This Deed is governed by the laws of Spain.

2.2 The parties hereto expressly submit themselves to the jurisdiction of the Courts and Tribunals sitting in the capital city of Madrid, to resolve any and all claims related to the enforceability,
interpretation, compliance and execution of this Deed.

TREATMENT OF INFORMATION.- The parties hereto accept the
incorporation of information and the copy of the identification documents to the files of this Notary with the purposes of rendering the notarial activity and to effect notification of information in accordance with the Law of Public Administrations
(Ley de las Administraciones Públicas) and, as the case may be, to the Notary Public that succeeds the undersigned Notary in this city. The parties may exercise their rights of access, rectification, cancelation and opposition before
the undersigned Notary.



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OFFICIAL TRANSLATION, David A. González Vessi, Authorized Translator from English-Spanish,
Spanish-English, Approval Number 861/2010 dated as of January 25, 2010.

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I hereby attest and issue this deed.

And I, the Notary, HEREBY ATTEST:

a. - That I identify the individuals appearing before me by the identification documents described above, which were shown to me.

b. - That on my own judgment, the individuals appearing before me have the capacity and have legal standing to issue this deed.

c. - That the execution of this deed is lawful, and its execution derives to the free will of the individuals appearing before me, which were informed of its contents.

d. - That I read this deed to the individuals appearing before me, and were previously notified of their right to read the deed by
themselves, and such individuals stated to be aware of its contents, and hereby give their consent, all of the foregoing in accordance with article 193 of the Notary Regulations.

e. - That this public instrument is being issued in seven pages of stamp paper for exclusive use of notarial documents, Series 9L,
numbers 1690562, 1690563, 1690564, 1690565, 1690566, 1690567, all of them, I the undersigned Notary hereby attest.



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OFFICIAL TRANSLATION, David A. González Vessi, Authorized Translator from English-Spanish,
Spanish-English, Approval Number 861/2010 dated as of January 25, 2010.

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Signatures of the appearing individuals follow: Signed: RAFAEL MONJO CARRIÓ. Seal
of approval.

IT IS A COPY taken from its original, which is issued for purposes of giving NOTICE
to WILMINGTON TRUST (LONDON) LIMITED, and such party has the right to answer such notice within the two Business Days following the date in which the notarial procedure takes place, in my office located at Calle Esquinza, number 6, and I
hereby issued this deed in seven pages in paper approved by the Notary College of Spain. MADRID, as of
April 5th, two thousand eleven. I ATTEST.



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OFFICIAL TRANSLATION, David A. González Vessi, Authorized Translator from English-Spanish,
Spanish-English, Approval Number 861/2010 dated as of January 25, 2010.

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[SEAL OF RAFAEL MONJO CARRIO.- NOTARY PUBLIC OF MADRID]



CERTIFICATION

The undersigned, DAVID A. GONZALEZ VESSI, Official Translator authorized by the Superior Court of the State of Nuevo Leon, further to Approval number 983/2011 issued as of January 31, 2011, HEREBY
CERTIFIES THAT:

The preceding document is a true and accurate translation from the Spanish language to the English language of a copy of
Public Deed Number 714 issued as of April 5, 2011 by RAFAEL MONJO CARRIÓ, Notary Public residing in the city of Madrid, Spain. This certification is issued for any and all legal purposes.

Monterrey, N.L., as of May 13th, 2011

DAVID A GONZALEZ VESSI