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 September, 2021

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

1. Press release dated September 30, 2021, announcing that CEMEX, S.A.B. de C.V. (NYSE:CX) will host the second part of its 2021 CEMEX Day on Thursday October 7, 2021, which is expected to contain relevant information on CEMEX’s business.

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.

		CEMEX, S.A.B. de C.V.
		(Registrant)
Date: September 30, 2021	By:	/s/ Rafael Garza Lozano
		Name: Rafael Garza Lozano Title:   Chief Comptroller

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EXHIBIT INDEX

EXHIBIT NO.	DESCRIPTION
1.	Press release dated September 30, 2021, announcing that CEMEX, S.A.B. de C.V. (NYSE:CX) will host the second part of its 2021 CEMEX Day on Thursday October 7, 2021, which is expected to contain relevant information on CEMEX’s business.

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