CEPU 6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

Report of Foreign Private Issuer

Pursuant to Rule 27a-16 or 15d-16

under the Securities Exchange Act of 1934

For the month of April, 2025

Commission File Number: 001-38376

Central Puerto S.A.

(Exact name of registrant as specified in its charter)

Port Central S.A.

(Translation of registrant’sname into English)

Avenida Thomas Edison 2701

C1104BAB Buenos Aires

Republic of Argentina

+54 (11) 4317-5000

(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 [X] 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):

Yes [_] No [X]

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):

Yes [_] No [X]

CENTRALPUERTO S.A

BUENOSAIRES, March 31, 2025

Note:CPSA-GG-N-0124/25-AL

COMISIÓN NACIONALDE VALORES

Deputy Management of Issuing Companies

25 de Mayo 175

City of Buenos Aires

To Management of Issuing Companies

BOLSAS Y MERCADOS ARGENTINOSS.A.

Sarmiento 299

City of Buenos Aires

To 3 MERCADOS S.A.

Paraguay 777

City of Rosario

Subject:Material news

Dear Mr./Mrs.,

It is a pleasure to contact you in my capacity as Head of Market Relations of Central Puerto S.A. (“CPSA” or the “Company”) in compliance with Section 4, subsection a) of Chapter II, Title II of CNV Regulations (restated text 2023 as amended) so as to inform you that today, the Board of Directors at its Meeting decided to call the Company’s Shareholders to hold a remote Special Shareholders’ Meeting on first call on May 22, 2025 at 2 p.m., through an application permitting to hold it under the legal requirements so as to consider the corporate reorganization process of Split-off-Merger with Ecogas Inversiones S.A., the Merger of CP Renovables S.A., and the amendment to the corporate purpose so that the Company can ensure different obligations.

Yours sincerely,

Leonardo Marinaro

Head of Market Relations

CENTRALPUERTO S.A.

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.