Ecopetrol Announces the Convening of Bondholders' Meetings for Domestic Public Debt Bonds on August 18

Ecopetrol S.A. (BVC: ECOPETROL; NYSE: EC ) (the "Company" or "Ecopetrol") announces that, in connection with the merger by absorption between Ecopetrol S.A., as the surviving company, and Parque Solar Portón del Sol S.A.S., as the absorbed company (the "Merger"), approved by Ecopetrol's General Shareholders' Meeting on March 27, 2026, the Company is convening the holders of its local bonds to consider the Merger through General Bondholders' Meetings, in compliance with the regulations applicable to securities issuers, particularly Article 6.4.1.1.42 of Decree 2555 of 2010.

For this purpose, Alianza Valores Fiduciaria S.A. and Itaú Fiduciaria Colombia S.A., acting as legal representatives of the holders of Ecopetrol's outstanding local bond issuances (the "Bondholders' Representatives"), at the Company's request and pursuant to Article 6.4.1.1.18 of Decree 2555 of 2010, have issued the first notices of call for the General Bondholders' Meetings corresponding to the 2010 and 2013 issuances, through notices published in the newspaper La República , as set forth below:

2010 Outstanding Bond Issuance Alianza Valores Fiduciaria S.A. hereby gives notice that it has convened a meeting of bondholders to be held on August 18, 2026, at 2:00 p.m. (Bogotá, D.C. time). Bondholders may attend the meeting either (i) in person, at Carrera 37 No. 24-24, Centro de Innovación Bogotá, Bogotá , D.C., Colombia, or (ii) virtually, via videoconference through the electronic platform of Colombia's Central Securities Depository (Depósito Centralizado de Valores de Colombia — Deceval S.A.). The meeting is being convened in accordance with Article 19 of Law 222 of 1995 and Decree 398 of 2020 of Colombia. The link for virtual attendance is set forth below: https://asambleadebonosecopetrol2010.azurewebsites.net

The outstanding 2010 issuance, Series A, consisting of CPI-linked bonds denominated in Colombian pesos, has the following characteristics: Issuance Placement Date Maturity Date Term (Years) Coupon Rate Outstanding Amount (COP million) COC04CBVP023 Dec. 1, 2010 Dec. 1, 2040 30 CPI + 4.90% 284,300

Agenda Verification of quorum. Review and approval of the agenda. Delegation to the Bondholders' Representatives for the appointment of the Chairperson and Secretary of the meeting, in accordance with Section 4.3.3 of Chapter I, Title I, Part III of Legal Circular 006 of 2025 issued by the Superintendencia Financiera de Colombia (Colombian Financial Superintendence). Appointment of the committee responsible for approving the minutes of the meeting. Presentation of Ecopetrol's report regarding the proposed Merger. Report on the opinion issued by Alianza Fiduciaria S.A., in its capacity as Legal Representative of the Holders of the Domestic Public Debt Bonds issued in 2010. Reading of the opinion issued by Fitch Ratings Colombia S.A.S. Vote and decision by the bondholders with respect to the proposed Merger.

2013 Outstanding Bond Issuance Itaú Fiduciaria Colombia S.A. hereby gives notice that it has convened a meeting of bondholders to be held on August 18, 2026, at 3:30 p.m. (Bogotá, D.C. time). Bondholders may attend the meeting either (i) in person at Carrera 37 No. 24-24, Centro de Innovación Bogotá , Bogotá, D.C., Colombia, or (ii) virtually, via videoconference through the electronic platform of Colombia's Central Securities Depository (Depósito Centralizado de Valores de Colombia — Deceval S.A.). The meeting is convened in accordance with Article 19 of Law 222 of 1995 and Decree 398 of 2020 of Colombia. The link for virtual attendance is set forth below: https://asambleadebonosecopetrol2013.azurewebsites.net

The outstanding 2013 CPI-linked bond issuance denominated in Colombian pesos has the following characteristics: Issuance Placement Date Maturity Date Term (Years) Coupon Rate Outstanding Amount (COP million) COC04CBVP007 Aug. 27, 2013 Aug. 27, 2028 15 CPI + 4.90% 347,500 COC04CBVP007 Aug. 27, 2013 Aug. ...