Enel Americas S A : Letter to shareholders – Ordinary and Extraordinary Shareholders’ Meeting – Enel Américas 2026

About this update from Enel Americas S.a.

Santiago, April 2026 Mr. / Mrs. REF: Summons to Ordinary and Extraordinary Shareholders' Meetings To whom it may concern: Pursuant to the provisions of Article 59 of Law No. 18.046, I am hereby pleased to inform you that the Board of Directors has resolved to convene Enel Américas S.A.'s shareholders for an Ordinary Shareholders' Meeting, to be held in a hybrid format, that is to say, both in person and remotely, on April 30, 2026. The meeting will commence at 8:30 a.m. at Roger de Flor No. 2725, Tower 2, Floor 1, Las Condes, Santiago. The purpose of the meeting is to discuss and decide on the following matters: Approving the Annual Report, balance sheet, financial reports, and external auditors' report for the fiscal year ending December 31, 2025; Distributing the year's profits and dividends; Setting the Directors' compensation; Determining the remuneration of the Directors' Committee and establishing its budget for 2026; Reporting on Board expenses and the Annual Management Report of Activities and Expenses of the Directors' Committee; Appointing an external auditing firm governed by Title XXVIII of Law No. 18,045; Appointing private risk classifiers; Approving the investment and financing policy; Presenting the dividend policy and procedures for distributing dividends. Information regarding Board agreements related to acts or contracts governed by Title XVI of Law No. 18,046; Information about processing, printing, and dispatch costs of the information required by Circular No. 1,816 of the Financial Market Commission; Other matters of corporate interest and within the scope of the Ordinary Shareholders' Meeting authority; and Adopting additional necessary agreements for the proper implementation of the resolutions adopted. Furthermore, in accordance with the resolution of the Board of Directors of Enel Américas S.A., an Extraordinary Shareholders' Meeting is scheduled to take place in a hybrid format-both in person and remotely-on April 30, 2026. The meeting will be held immediately after the Ordinary Shareholders' Meeting at Roger de Flor No. 2725, Tower 2, 1 st Floor, Las Condes, Santiago. The purpose of the meeting is to inform shareholders and give them an opportunity to express their opinions on the following matters: Agree to the early cancellation of 4,291,195,581 of its own shares acquired by the Company under the share repurchase program approved at the Extraordinary Shareholders' Meeting of August 28, 2025; as well as agree to the corresponding reduction of the share capital from US$15,799,226,825, divided into 107,279,889,530 registered common shares, all of the same series and without par value, to US$15,327,282,763, divided into 102,988,693,949 registered common shares, all of the same series and without par value. Agree to amend Article Five (permanent) and Article One (transitional) of the bylaws, replacing them with the following: Article Five: The Company's capital amounts to fifteen billion three hundred twenty-seven million two hundred eighty-two thousand seven hundred sixty-three U.S. dollars (US$15,327,282,763). It is divided into one hundred two billion nine hundred eighty-eight million six hundred ninety-three thousand nine hundred forty-nine (102,988,693,949) registered ordinary shares, all of the same series and without par value, subscribed and paid for as specified in the First Transitional Article of these bylaws. " Article One Transitional: The Company's capital totals fifteen billion three hundred twenty-seven million two hundred eighty-two thousand seven hundred sixty-three U.S. dollars (US$15,327,282,763), divided into one hundred two billion nine hundred eighty-eight million six hundred ninety-three thousand nine hundred forty-nine (102,988,693,949) registered ordinary shares, all of the same series and without par value. These shares have been subscribed and will be subscribed, and paid and will be paid, as follows: (a) nine billion seven hundred sixty-three million seventy-eight thousand six hundred ninety-nine U.S. dollars, divided into seventy-six billion eighty-six million three hundred eleven thousand thirty-six shares, fully subscribed and paid. (b) With six billion thirty-six million four hundred nineteen thousand eight hundred forty-five U.S. dollars, corresponding to thirty-one billion one hundred ninety-five million three hundred eighty-seven thousand five hundred twenty-five shares, issued due to the increase in capital approved at the Company's extraordinary shareholders' meeting held on December 18, 2020, which approved the merger by incorporation of EGP Américas SpA into the Company. The merger became effective on April 1, 2021. As a result of the merger, the Company, as the absorbing entity, incorporated EGP Américas SpA, absorbing it and succeeding in all its rights and obligations. The shares issued in the capital increase related to the merger were subscribed for and paid for with the absorbed Company's assets. These shares were issued and delivered to the shareholders of EGP Américas SpA in accordance with the exchange ratio approved at the meeting. (c) minus two hundred seventy-one thousand seven hundred nineteen U.S. dollars, which is equivalent to one million eight hundred nine thousand thirty-one registered common shares, all of the same series and without par value. These shares correspond to the number of shares for which dissenting shareholders exercised the right of withdrawal from Enel Américas S.A., prior to the Company's payment for their shares during the approval of the merger of EGP Américas SpA into Enel Américas S.A., as agreed at the Extraordinary Shareholders' Meeting held on December 18, 2020. These shares were automatically reduced for not being sold within one year of their acquisition; (d) minus four hundred seventy-one million nine hundred forty-four thousand sixty-two U.S. dollars (US$471,944,062), equivalent to four billion two hundred ninety-one million one hundred ninety-five thousand five hundred eighty-one (4,291,195,581) registered ordinary shares, all of the same series and without par value, which correspond to the number of treasury shares acquired by the Company through the share buyback program approved at the Extraordinary Shareholders' Meeting held on August 28, 2025, which were canceled early through the agreement of the Extraordinary Shareholders' Meeting dated April 30, 2026. Regarding the agreements made at the Meeting under points 1 and 2 above: (i) to authorize the Board of Directors, in broad terms, to resolve and implement all aspects, modalities, actions, and details that may arise regarding the amendments to the bylaws and other agreements adopted at the Meeting; and (ii) grant powers to the Company's executives and/or attorneys to legalize the Meeting's agreements, make the required filings with the Financial Market Commission and other relevant entities, carry out any other necessary procedures to implement these agreements, and report one or more of the Meeting's agreements as a material fact. To issue a consolidated text of the bylaws that accounts for the modifications made thereto; and To adopt any other necessary or appropriate agreements to implement the decisions made by the Board. PUBLICATION OF FINANCIAL STATEMENTS AND OTHER DOCUMENTS The Company's Financial Statements as of December 31, 2025, are already published on Enel Americas S.A.'s website, https://www.enelamericas.com , in the 'Investors' section. We hereby inform you that, in accordance with the provisions of Article 54, last paragraph, and Article 75, both of Law No. 18.046, the Annual Report for the fiscal year ending December 31, 2025, which includes the external auditors' report and the Company's audited Financial Statements, has already been published on Enel Américas S.A.'s website, https://www.enelamericas.com in the 'Investors' section. Furthermore, we inform the shareholders that, in compliance with the provisions of Article 59 of Law No. 18,046, they may obtain full copies of the documents supporting the various options submitted for their vote at Roger de Flor 2725, Tower 2, 1st floor, Las Condes, Santiago, between 9:00 a.m. and 6:00 p.m. The aforementioned documents are already published on Enel Americas S.A.'s website at https://www.enelamericas.com in the "Investors" section. PARTICIPATION IN THE MEETING AND POWER QUALIFICATION Shareholders registered in the Company's Shareholders' Register as of midnight on the fifth business day prior to the date set for the meeting will have the right to participate in the Meetings. In the event that shareholders are unable to attend, they may designate another individual to represent them at the Meetings, regardless of whether that individual is a shareholder or not. A power of attorney form is available on the Company's official website and must be submitted at the designated dates and locations as detailed in the following paragraph. The Ordinary and Extraordinary Shareholders' Meetings of Enel Américas S.A. are scheduled to take place at Roger de Flor No. 2725, Tower 2, 1st floor, Las Condes, Santiago. These meetings will be conducted in a hybrid format, accommodating both in-person and remote attendance. The Company provides an electronic system for remote participation and voting that complies with prevailing regulatory standards. A detailed guide outlining all procedures and mechanisms for remote participation, including the authorization of powers of attorney, will be made available on the Company's official website at https://www.enelamericas.com in the "Investors" section, no fewer than 10 days before the meetings. The qualification of powers will be conducted remotely on April 27, 28, and 29, 2026, until 2:00 PM, in accordance with the procedure and methodology, which will be made available to shareholders via the Company's website. I look forward to your valuable participation in the meetings. Yours sincerely. Chief Executive Officer

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