20250821_MEDC_Laporan Informasi dan Fakta Material_31934263_lamp2.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 Secures Production Period Extension for Bualuang Oil Field in Thailand

Jakarta, August 21, 2025 – PT Medco Energi Internasional Tbk (“MedcoEnergi”) is pleased to announce
that its subsidiaries, Medco Energi Thailand (Bualuang) Limited and Medco Energi Thailand (E&P)
Limited, have received approval from the Government of Thailand for an extension of the production
period for the Bualuang Oil Field (Block B8/38) in the Gulf of Thailand. The production period has been
extended until October 23, 2035, allowing the Company to continue its operations and further strengthen
its commitment to the region.

The Company’s long-term development plan aims to enhance Bualuang's production and maximize asset
value through investment in facility debottlenecking, workovers, development drilling, and near-field
exploration.

Roberto Lorato Director & Chief Executive Officer of MedcoEnergi said, “We are proud to receive this
extension, which underscores our commitment to operational excellence and sustainable development in
Thailand, while rewarding our investment proposition.”

Anastasia Mustika, General Manager of Medco Energi Thailand added, “MedcoEnergi expresses its
gratitude to the Government of Thailand, as well as to all stakeholders, including the Department of
Mineral Fuels, local communities and contractors, for their support and collaboration in making this
extension possible. This achievement reaffirms the Company’s long-term commitment to responsible
energy production.”

The Bualuang production period extension aligns with MedcoEnergi’s strategic priorities to ensure
sustainable growth and strengthen its position as a leading energy company in Southeast Asia.

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 Medco 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