UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 or 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of March 2023

Commission File Number: 001-14946

CEMEX, S.A.B. de C.V.

(Translation of Registrant’s name into English)

Avenida Ricardo Margáin Zozaya #325, Colonia Valle del Campestre,

San Pedro Garza García, Nuevo León 66265, México

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F  ☒            Form 40-F  ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):

Contents

On March 23, 2023, CEMEX, S.A.B. de C.V. (“CEMEX” or the “Company”) informed the Mexican Stock Exchange (Bolsa Mexicana de Valores) that:

At CEMEX’s Ordinary General Shareholders’ Meeting held on March 23, 2023, members of CEMEX’s Board of Directors, as well as members of the Audit, Corporate Practices and Finance, and Sustainability, Climate Action, Social Impact, and Diversity (formerly known as the Sustainability Committee) Committees, were elected as follows:

BOARD OF DIRECTORS

Rogelio Zambrano Lozano, Roger Saldaña Madero, and René Delgadillo Galván were elected, respectively, as Chairman, Secretary, and Alternate Secretary of the Board of Directors of CEMEX, the latter two not being Directors.

AUDIT COMITTEE

EVERARDO ELIZONDO ALMAGUER

FRANCISCO JAVIER FERNÁNDEZ CARBAJAL

GABRIEL JARAMILLO SANINT

CORPORATE PRACTICES AND FINANCE COMMITTEE

FRANCISCO JAVIER FERNÁNDEZ CARBAJAL

ARMANDO GARZA SADA

RODOLFO GARCÍA MURIEL

SUSTAINABILITY, CLIMATE ACTION, SOCIAL IMPACT, AND DIVERSITY COMMITTEE (formerly known as the Sustainability Committee)

ARMANDO J. GARCÍA SEGOVIA

MARCELO ZAMBRANO LOZANO

ISABEL MARÍA AGUILERA NAVARRO

MARÍA DE LOURDES MELGAR PALACIOS

Everardo Elizondo Almaguer, Francisco Javier Fernández Carbajal, and Armando J. García Segovia were appointed Presidents of the Audit Committee, the Corporate Practices and Finance Committee, and the Sustainability, Climate Action, Social Impact, and Diversity Committee (formerly known as the Sustainability Committee) of CEMEX, respectively. The Secretary and Alternate Secretary of CEMEX’s Board of Directors will act as Secretary and Alternate Secretary of the Audit, Corporate Practices and Finance, and Sustainability, Climate Action, Social Impact, and Diversity (formerly known as the Sustainability Committee) Committees without forming part of the aforementioned Committees.

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SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, CEMEX, S.A.B. de C.V. has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

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