Ecopetrol acquisitions, on the record

Word for word“On August 20, 2021, Ecopetrol acquired 569,472,561 shares of ISA, equivalent to 51.4% of its outstanding shares, for which Ecopetrol paid the agreed price of COP 14,236,814 million or COP 25,000 per share to the Ministry of Finance and Public Credit.” 20-F for 2023

Word for word“Oleoducto Bicentenario merged with Cenit, as evidenced in public deed No. 4660 of December 21, 2023 of Notary 21 of Bogotá, and filed in the commercial registry on December 28, 2023.” 20-F for 2023

Word for word“In January 2021, Ecopetrol S.A. divested its 50% equity share in Savia Perú as the result of a competitive bidding process led jointly with its partner Korea National Oil Corporation (“KNOC”).” 20-F for 2023

Word for word“This increase was partially offset by (i) lower expenses related to the updating of processes, resulting from new legal, tax and environmental provisions, and (ii) the profit from the sale of the Casanare, Estero, Garcero, Orocue and Corocora fields in 2022.” 20-F for 2023

Word for word“In addition, in connection with Ecopetrol’s unconventional resources strategy outside Colombia, in 2019 we formed a joint venture (JV) with Occidental Petroleum Corp. (“Occidental Petroleum”) for the development of approximately 97,000 acres in the Midland Basin, within the Permian Basin, Texas, by which we acquired 49% of Rodeo Midland Basin LLC (“Rodeo JV”).” 20-F for 2023

Word for word“Throughout 2022, Invercolsa completed the integration of its operations into the Ecopetrol Group, in connection with the increase in stake completed by Ecopetrol in November 2019.” 20-F for 2023

Word for word“On August 20, 2021, we acquired 51.4% of the outstanding shares of ISA from the Ministry of the Treasury and Public Credit ( Ministerio de Hacienda y Crédito Público or “MHCP” for its acronym in Spanish), through which we expect to reposition ourselves along the energy value chain by offering services such as electricity transmission and aligning ourselves with the market trends towards decarbonization and electrification.” 20-F for 2024

Word for word“On February 5, 2025, Ecopetrol acquired the remaining 45% of its participation in the CPO-09 Block of Repsol Colombia Oil & Gas Limited (“Repsol”), for an amount of USD 452 million, making it the holder of 100% of the participation interest in the block, a strategic asset in the Piedemonte Llanero.” 20-F for 2024

Word for word“On July 22, 2024, a share purchase agreement was executed among Oleoducto Central S.A. (“Ocensa”), as purchaser, and Talisman Colombia Holdco Limited, as seller, by means of which Ocensa acquired 100% of the shares of C.I. Repsol Ductos Colombia S.A.S., which is now known as Ocensa Ductos S.A.S.” 20-F for 2024

Word for word“On December 16, 2024, the respective General Shareholders’ Meetings of both Ocensa and Ocensa Ductos approved the merger of Ocensa Ductos S.A.S. and Ocensa, with Ocensa resulting the surviving entity.” 20-F for 2024

Word for word“On December 28, 2023, Oleoducto Bicentenario merged with Cenit Transporte y Logística de Hidrocarburos S.A.S., with Oleoducto Bicentenario ceasing to exist and all of its assets and liabilities, rights and obligations being assumed by Cenit Transporte y Logística de Hidrocarburos S.A.S.” 20-F for 2024

Word for word“In 1974, we acquired the Cartagena Refinery (as defined below), which had been in operation since 1957.” 20-F for 2024

Word for word“On July 7, 2025, Ecopetrol acquired 100% of the shares of Wind Autogeneración S.A.S., from Enel S.A.S.” 20-F for 2025

Word for word“On July 22, 2025, the merger by absorption between Oleoducto Central S.A. – Ocensa (surviving entity) and Ocensa Ductos S.A.S. (absorbed entity) was registered with the Bogotá Chamber of Commerce.” 20-F for 2025

Word for word“On November 13, 2025, Ecopetrol S.A. closed the transaction with Statkraft European Wind and Solar Holding AS (“Statkraft”) for the acquisition of one company engaged in the development and operation of Statkraft’s portfolio in Colombia, and other nine companies which own solar or wind projects.” 20-F for 2025

Word for word“Sale of the Company’s 51% equity interest in IE Garanhuns to Axia Nordeste.” 20-F for 2025

Word for word“On April 23, 2026, Ecopetrol announced that it entered into a Share Purchase Agreement with Jive, Yellowstone and Bloco Somah Printemps Quantum, which together constitute a group of significant shareholders holding approximately 26% of the outstanding common shares of the Brazilian company Brava Energia S.A. (B3: BRAV3) (“Brava”), for the acquisition by Ecopetrol S.A., or one of its affiliates or subsidiaries within the Ecopetrol Group, of 120,813,490 shares of Brava, representing approximately 26% of Brava’s share capital.” 20-F for 2025