Edenor S.A. Announces Additional 9.75% Senior Notes Offering Under Existing Debt Indenture

Edenor S.A. announced that the Notes are being offered as additional debt securities under a second supplemental indenture to a base indenture dated October 24, 2024 (as amended and supplemented from time to time, the "Notes Indenture") among Edenor, as issuer, The Bank of New York Mellon, as trustee (the "Trustee," which term shall include any successor as Trustee under the Notes Indenture) and Banco de Valores S.A., as representative of the Trustee in Argentina, pursuant to which previously issued USD 183,789,286 in aggregate principal amount of 9.75% senior notes due 2030 (the "Initial Notes"). The Notes and the Initial Notes are fungible and will constitute a single series of debt securities, provided that the Notes offered and sold pursuant to Regulation S Notes will have a temporary CUSIP number, ISIN number and Common Code until expiration of the 40-day "distribution compliance period" with respect to the Notes. Upon the issuance of the Notes offered hereby, the outstanding aggregate principal amount of 9.75% senior notes due 2030 will be USD 385,000,000.

Holders of the Notes and the Initial Notes will vote as one class of securities under the Notes Indenture. Unless the context otherwise requires, references herein to the "Notes" include the Notes offered hereby and the Initial Notes. Interest on the Notes offered hereby will be payable semi-annually, in cash, in arrears on April 24 and October 24, of each year commencing on April 24, 2026 until the principal of the Notes is repaid in full.

Interest will accrue from October 24, 2025. The maturity date is October 24, 2030 (the "Maturity Date"), and the principal amount of the Notes will be paid in instalments on the following dates and as further described herein: 33.33% on October 24, 2028, 33.33% on October 24, 2029, and the remainder on the Maturity Date. Prior to the Maturity Date, may, redeem the Notes, in whole or in part, on the terms described under "Description of the Notes--Optional Redemption." In the event of certain developments affecting taxation at any time subsequent to the date of issuance of the Notes, may redeem the Notes, in whole, but not in part, as described under "Description of the Notes--Redemption for Taxation Reasons." The Initial Notes constitute and, upon issuance, the Notes will constitute direct, unconditional, unsecured and unsubordinated obligations and will rank at all times at least pari passu in right of payment with all of other existing and future unsecured and unsubordinated indebtedness (other than obligations preferred by statute or by operation of law, including, without limitation, tax and labor related claims).

The Notes will be subordinated to all of existing and future secured obligations to the extent of the value of the assets securing such obligations, and to all of the existing and future obligations of subsidiaries. Investing in the Notes involves risks. See "Risk Factors" beginning on page 17.

Offering Price: 98.023% plus accrued interest from October 24, 2025. The Notes have not been registered under the U.S. Securities Act of 1933, as amended (the "Securities Act"), or under any state securities laws and are being offered only: (1) to qualified institutional buyers under Rule 144A under the Securities Act ("Rule 144A") and (2) outside the United States in compliance with Regulation S under the Securities Act ("Regulation S"). Prospective purchasers that are qualified institutional buyers are hereby notified that the sellers of the Notes may be relying on the exemption from the provisions of section 5 of the Securities Act provided by Rule 144A.

For a description of certain restrictions on transfer, see "Transfer Restrictions." The Initial Notes constitute and, upon issuance, the Notes will constitute obligaciones negociables simples no convertibles en acciones under the Argentine Negotiable Obligations Law No. 23,576, as amended by Argentine Law No. 23,962 as amended by the Argentine Productive Financing Law N° 27,440 (the "Negotiable Obligations Law"), will be issued and placed in accordance with such law, Argentine Capital Markets Law No.

26,831 as amended by the Argentine Productive Financing Law N° 27,440 (the "Argentine Capital Markets Law"), the General Resolution No. 622/2013, as amended and supplemented (the "CNV Rules"), issued by the Argentine Securities Commission (the Comisión Nacional de Valores, or "CNV") and any other applicable law and/or regulation, and will be entitled to the benefits set forth therein and subject to the procedural requirements thereof, as well as in the Argentine Capital Markets Law and the applicable resolutions of the CNV. In particular, pursuant to Article 29 of the Negotiable Obligations Law, in the event of a default by us in the payment of any amount due under a Note, the holder of such Note will be entitled to institute summary judicial proceedings (juicio ejecutivo) in the Republic of Argentina ("Argentina") to recover payment of any such amount.

The Notes will be offered in Argentina by means of an Argentine prospectus (the "Argentine Prospectus") and an Argentine pricing supplement in the Spanish language (the "Argentine Pricing Supplement"), in accordance with CNV Rules containing substantially the same information as this offering memorandum, other than with respect to the description of U.S. securities and tax laws that are relevant to the Notes, but in a different format, under the Program approved by the CNV through Resolution No. 20,503, dated October 23, 2019 and Resolution No. DI-2022-4APN-GE#CNV, dated April 8, 2022, updated on October 12, 2023 and March 20, 2024, extended on September 26, 2024 through Resolution No.

DI-2024-72-APN-GE#CNV dated September 24, 2024, and further updated on May 21, 2025 (the "Program") and pursuant to the terms and conditions approved by Board of Directors' meetings held on April 22, 2025, June 12, 2025 and September 4, 2025. The CNV authorization means only that the information requirements of the CNV have been satisfied. The CNV has not rendered and will not render any opinion in respect of the accuracy of the information contained in the Argentine Prospectus, in the Argentine Pricing Supplement or in this offering memorandum.

The accuracy of all the information contained herein is responsibility.