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6-K

Loma Negra Compania Industrial Argentina Sociedad Anonima (LOMA)

6-K 2024-10-29 For: 2024-10-29
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Added on April 12, 2026

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

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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 October, 2024

Commission File Number: 001-38262

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LOMA NEGRA COMPAÑÍA INDUSTRIAL ARGENTINA SOCIEDAD ANÓNIMA (Exact Name of Registrant as Specified in its Charter)

LOMA NEGRA CORPORATION (Translation of Registrant’s name into English)

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Cecilia Grierson 355, 4th Floor<br><br>Zip Code C1107CPG – Capital Federal<br><br>Republic of Argentina
(Address of principal executive offices)

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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):

This Form 6-K for Loma Negra Compañía Industrial Argentina Sociedad Anónima (or the “Company”) contains:

Exhibit 1:Relevant Event

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Loma Negra Compañía Industrial Argentina Sociedad Anónima
Date: October 29, 2024 By: /s/ Marcos I. Gradin
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Name: Marcos I. Gradin
Title: Chief Financial Officer

lnhr-archivosumariocdnce

City of Buenos Aires, October 29, 2024 Messrs. Comisión Nacional de Valores (CNV) Messrs. Bolsas y Mercados Argentinos S.A. (BYMA) Messrs. Mercado Abierto Electrónico S.A. (MAE) Ref.: LOMA NEGRA C.I.A.S.A. – Relevant Event Dear Sirs, We are writing in order to comply with section 2, Chapter I, Title XII of the Argentine National Securities Commission (Comisión Nacional de Valores) Rules (2013 revised version). Following the information provided in the Relevant Event dated November 7, 2022, Loma Negra C.I.A.S.A. (the “Company”) informs that it has been notified of Resolution No. 357/2024 issued by the Argentine Secretary of Industry and Commerce (Secretaría de Industria y Comercio)(the “Resolution”), which closed the investigation, based on the prior opinion of the Argentine Antitrust Commission (the “CNDC” as per its acronym in Spanish). The CNDC determined that the Company did not engage in anti-competitive behavior. The Resolution is final and binding. Sincerely, Marcos I. Gradin Investor Relations Officer LOMA NEGRA C.I.A.S.A.