UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-A

FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES

PURSUANT TO SECTION 12(b) OR 12(g) OF

THE SECURITIES EXCHANGE ACT

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

(Exact name of registrant as specified in its charter)

CEMEX CORP.

Securities to be registered pursuant to Section 12(b) of the Act:

If this form relates to the registration of a class of securities pursuant to Section 12(b) of the Exchange Act and is effective pursuant to General Instruction A.(c) or (e), check the following box. ☒

If this form relates to the registration of a class of securities pursuant to Section 12(g) of the Exchange Act and is effective pursuant to General Instruction A.(d) or (e), check the following box. ☐

If this form relates to the registration of a class of securities concurrently with a Regulation A offering, check the following box. ☐

Securities Act registration statement or Regulation A offering statement file number to which this form relates:

333-296381 and 333-296381-01

Securities to be registered pursuant to Section 12(g) of the Act:

None

INFORMATION REQUIRED IN REGISTRATION STATEMENT

Cemex, S.A.B. de C.V. (“Cemex”) and Cemex Corp. (the “Guarantor” and, together with Cemex, the “Registrants”) have filed with the Securities and Exchange Commission (the “Commission”) pursuant to Rule 424(b) under the Securities Act of 1933, as amended (the “Securities Act”), a prospectus supplement, dated June 2, 2026 (the “Prospectus Supplement”), and the accompanying prospectus, dated June 1, 2026 (the “Base Prospectus”). The Prospectus Supplement relates to the offering of $1,500,000,000 aggregate principal amount of 5.750% Senior Notes due 2036 (the “Notes”) issued by Cemex. The Notes are fully and unconditionally guaranteed by the Guarantor. The Base Prospectus forms a part of the Registrants’ Registration Statement on Form F-3 (File Nos. 333-296381 and 333-296381-01), filed with the Commission on June 1, 2026.

Item 1. Description of Registrant’s Securities to be Registered.

The descriptions under the heading “Description of the Notes” in the Prospectus Supplement and “Description of Debt Securities and Guarantees” in the Base Prospectus are incorporated by reference herein.

Item 2. Exhibits.

SIGNATURE

Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, the registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereto duly authorized.