PT Medco Energi Internasional Tbk : MedcoEnergi Reduces Methane Emissions Through Nitrogen Gas Blanketing at the Corridor Block

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PT Medco Energi Internasional Tbk Tel +62-21 2995 3000 The Energy 53 rd Fl., SCBD Area Lot 11 A Fax +62-21 2995 3001 Jl. Jend. Sudirman, Jakarta 12190 https://www.medcoenergi.com Indonesia MedcoEnergi Reduces Methane Emissions Through Nitrogen Gas Blanketing at the Corridor Block MedcoEnergi implemented nitrogen blanketing at storage tanks at its Suban facility in the Corridor Block, South Sumatra It is expected to reduce around 1,100 tCO ₂ e per year, mainly from methane The initiative aligns with MedcoEnergi's commitment under OGMP 2.0 Jakarta, 3 February 2026 - PT Medco Energi Internasional Tbk (MedcoEnergi), through its subsidiary Medco E&P Grissik Ltd., has strengthened its methane-reduction efforts by implementing nitrogen gas blanketing at oil and gas storage tanks at the Suban Facility, Corridor Block, South Sumatra, as part of its efforts to reduce methane emissions and improve operational efficiency. The system has the potential to reduce greenhouse gas emissions by around 1,100 tCO ₂ e per year, primarily from methane. This demonstrates that emissions reduction initiatives can be effectively integrated with operational performance. This initiative is aligned with MedcoEnergi's participation in the Oil & Gas Methane Partnership (OGMP) 2.0, a global framework that promotes transparency and accuracy in methane emission measurement and reporting. Through this participation, MedcoEnergi aligns with global energy companies that prioritize data accountability and strong emissions governance. "Our commitment goes beyond emission reduction to ensuring that emissions are measured, managed, and reported in a credibly," Ronald added. "Methane reduction is not only about technology or compliance, but about responsible and sustainable operations," said MedcoEnergi Director & Chief Operating Officer, Ronald Gunawan. "This initiative proves that practical field actions can deliver measurable environmental impact while strengthening energy resilience." MedcoEnergi has successfully exceeded its 2025 emission reduction target and remains on track to achieve its 2030 interim target. The Company will continue expanding low-emission and energy-efficient technologies as part of its commitment to achieving Net Zero Emissions for Scope 1 and 2 by 2050 and Scope 3 by 2060. (***). PT MedcoEnergi 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 PT Medco Power Indonesia 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: [email protected] | [email protected] Website: www.medcoenergi.com

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