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

of the Securities Exchange Act of 1934

For the month of September 2025

Commission File Number: 001-13464

Telecom Argentina S.A.

(Translation of registrant’s name into English)

General Hornos, No. 690, 1272

Buenos Aires, Argentina

(Address of principal executive offices)

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

Form 20-F x           Form 40-F ¨

Telecom Argentina S.A.

TABLE OF CONTENTS

Item

1. English translation of letter dated September 23, 2025, to the Argentine Securities & Exchange Commission (Comisión Nacional de Valores)

FREE TRANSLATION   Buenos Aires, September 23, 2025   Comisión Nacional de Valores

Re.: Relevant Matter

Dear Sirs,

I am writing to you as Responsible for Market Relations of Telecom Argentina S.A. (“Telecom Argentina” or the “Company”), located at General Hornos 690, City of Buenos Aires, to inform you that today, in connection with the loan agreement (the "Loan") entered into between the Company and the Bank of China Limited (Panama Branch) (“BoC”) on September 19, 2025, the Company received from BoC a disbursement for an amount of RMB 530,000,000 (five hundred and thirty million Renminbi), maturing in September 2028.

Sincerely,

Telecom Argentina S.A.

/s/Luis Fernando Rial Ubago

Responsible for Market Relations

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.

		Telecom Argentina S.A.
Date:	September 23, 2025	By:	/s/ Luis Fernando Rial Ubago
			Name:	Luis Fernando Rial Ubago
			Title:	Responsible for Market Relations