20250916_MEDC_Laporan Informasi dan Fakta Material_31950498_lamp1.pdf

PT Medco Energi Internasional Tbk                          Tel +62-21 2995 3000
The Energy 53rd Fl., SCBD Area Lot 11 A                    Fax +62-21 2995 3001
Jl. Jend. Sudirman, Jakarta 12190                         www.medcoenergi.com
Indonesia




                                     MedcoEnergi Enhances Core South Sumatra Footprint

Jakarta, 16 September 2025 – PT Medco Energi Internasional Tbk (“MedcoEnergi” or the “Company”) announces
it has agreed to acquire a 45% operating interest in the Sakakemang PSC and an 80% operating interest in the
South Sakakemang located in South Sumatra, Indonesia, subject to Government of Indonesia approval.

The Sakakemang PSC has an approved Plan of Development from the Indonesian Government and is adjacent to
the Medco-operated Corridor PSC. The acquisition follows the recent expansion of the Corridor PSC, and the award
of the South Sumatra Amanah exploration PSC to Medco. This expansion also aligns with the Government of
Indonesia’s program to ensure national energy security.

Additionally, in a series of separate transactions, MedcoEnergi has acquired a further interest in PT Transportasi
Gas Indonesia (“TGI”) raising its effective ownership to 40%. TGI transports natural gas from Medco’s Corridor
PSC and other South Sumatra–Jambi suppliers through its pipeline network to buyers in Riau, as well as Batam
and Singapore.

This consolidation of the Medco footprint is consistent with the Company’s strategy of acquiring assets with
significant growth potential, established infrastructure, and strong market access in well-understood regulatory
frameworks.

Roberto Lorato, Chief Executive Officer of MedcoEnergi, stated, “These acquisitions, ~US$90 million in total,
strengthen the Company’s strategic position in South Sumatra and Java’s integrated gas value chain. Our reserve
base and ownership in strategic infrastructure secure access to long-life cash-generating assets and enhance
MedcoEnergi’s role in supporting Indonesia’s energy needs.” (***)

PT Medco Energi Internasional Tbk (“MedcoEnergi”) is a leading Southeast Asian energy and natural resources company listed on the Indonesia Stock
Exchange (MEDC-IDX). MedcoEnergi has three key business segments, Oil & Gas, Power and Copper Mining. MedcoEnergi explores for and produces oil
and gas primarily in Indonesia. The Group operates gas, PV, geothermal and hydro power plants in Indonesia through MedcoEnergi Power and has a non-
consolidated interest in PT Amman Mineral Internasional Tbk which operates a large copper and gold mine.

This document may contain projections, plans, strategies, policies and objectives of MedcoEnergi which should be treated as forward looking statements
within the meaning of applicable law. Forward looking statements, by their nature, involve risks and uncertainties that could cause actual results to differ
materially from those expressed or implied in these statements. The Company does not guarantee that any action taken in reliance on this document will bring
specific results.

                                                      For further information please call:
                           Corporate Secretary | Investor Relations | Tel: (62-21) 2995 3000, Fax: (62-21) 2995 3001
                            Email: corporate.secretary@medcoenergi.com | investor.relations@medcoenergi.com
                                                       Website: www.medcoenergi.com