Pt Medco Energi Internasional TbkIDX: MEDC

MedcoEnergi January 2026 Investor Presentation

· Issued by PT Medco Energi Internasional Tbk




MEDC‹a›ENERGI

January 2026 Investor Presentation



PT Medco Energi Internasional Tbk (IDX: MEDC, OTCQX: MDCOY) | Jakarta, January 2026



2026 GUIDANCE

Q4 2025

176

Oil: 47 | Gas: 129

1,183

IPP: 887 | Renew: 296

FY 2025

165-170

↑ 6-9% YoY

156

Oil: 43 | Gas: 113

  • Within range

4,550

↑ 4% YoY

4,371

IPP: 3,276 | Renew: 1,095

↑ 2% vs guidance

2P Reserves: Increased to 564 mmboe

Emissions: Joined OGMP 2.0, methane reduced 41%*

2P RLI: Increased to 11.4 years

ESG Rating: MSCI AA | CDP Score B

2C Resources: Increased to 1,023 mmboe

Renewables: Power sales increased 25%

Power Sales (GWh)

Oil & Gas Production (mboepd)

2

* Compared to 2019 Base Year







Company Overview 4

Business Strategy 9

Nine-Month 2025 Highlights 23

2026 Guidance 30

Appendix: 32

Operational, Financial, and ESG

Oyong Platform, Sampang PSC, East Java

3

The following presentation has been prepared by PT Medco Energi Internasional Tbk. ("Company" or "MedcoEnergi") and contains certain projections, plans, business strategies, policies of the Company and industry data in which the Company operates in, which could be treated as forward-looking statements within the meaning of applicable law. Any forward-looking statements, by their nature, involve risks and uncertainties that could prove to be incorrect and cause actual results to differ materially from those expressed or implied in these statements. The Company does not guarantee that any action, which may have been taken in reliance on this document will bring specific results as expected. The Company disclaims any obligation to revise forward-looking statements to reflect future events or circumstances



‌4

Belida Platform, Block B, Riau Islands







52.4%

Market cap1: ~USD 2bn

25.7%

21.9%

Others

Diamond Bridge

Medco Daya Abadi Lestari

Ownership Structure1

~21%

Indonesian gas production2

72%

Production sold under long-term gas contracts

52/48

Mix of indexed price and fixed price sales

220%

TSR 1 January 2020 to 30 September 2025



Ownership, leadership and key metrics



Company Overview





Financial Metrics

Revenue (USD mn) Realized Oil Price (USD/bbl)

2014

751

97.8

2018

1,138

67.8

2024

2,399

78.0

9M25

1,757

68.3

2026

Board of Directors

Realized Gas Price (USD/mmbtu)

5.6

6.4

7.0

7.0

EBITDA (USD mn)

278

523

1,272

946

Capex (USD mn)

334

329

436

297

430

Unit cash cost (USD/BOE)3

15.4

8.7

8.2

8.8

<10

Market cap (USD bn)

194

714

1,701

2,065

Hilmi Panigoro

President Director

Operational Metrics

2014

2018

2024

9M25

2026

Production (mboepd) 56 85 152 150 165 - 170 Gas/Liquids (%) 45/55 61/39 73/27 72/28 70/30

2P Reserves (mmboe) 140 282 493 528

2P Reserves Life Index (Years) 17 10.7 10.4 11.2

5

Roberto Lorato



Chief Executive Officer

Ronald Gunawan

Chief Operating Officer

Anthony R. Mathias



Chief Financial Officer

Amri Siahaan

Chief Administrative Officer

1 30 September 2025

3 Consists of lifting and general & administration cost

2 Source: Direktorat Jenderal Minyak dan Gas Bumi Kementerian ESDM: Semester 1 2024 Statistics Oil & Gas. 2024





Medco has built a diversified energy and natural resources portfolio anchored in Southeast Asia and the Middle East

72/28

12/4

Onshore/Offshore

% of Gas/Liquids Producing Assets

41,052

Tonnes

Copper Cathode

44,792

Oz

Gold Refined

Smelter & Refining Production

5281

1,0231

MMBOENet 2P Reserves

Net Contingent

MMBOE Resources

Oil & Gas

Production Guidance

155-160

mboepd

11.21

Years

Reserves Life Index



6 1 Nine-Month 2025 results, excluding Sakakemang which closed Nov 7, 2025

3,1882

26%2

GWh IPP Power Sold

Renewable Mix

Installed Capacity

Power

Sales Guidance

4,300

GWh IPP Power Sold

Ijen Geothermal

35 MW

East Bali Solar PV

25 MWp

Phase 1

Operating in 2025

6 Gas-Fired IPPs 2

Operated

Operated Geothermal IPPs

2

Solar PV IPPs



2 Nine-Month 2025 results

Production Guidance

228

Mlbs Copper

90

Koz Gold

~21%

23.44

32.74

Medco's Ownership Stake in Amman Mineral, Market Cap ~USD 31.4bn3

Blb

Copper Reserves

Moz

Gold Reserves

Copper & Gold Mining



3 As of 30 September 2025, IPO Market Cap ~USD 7.4bn

4 JORC reserves as of 31 Dec 2024







Three core business lines

Oil & Gas Power Copper & Gold Mining

OTCQX Listing Launched sponsored ADR on OTCQX: MDCOY Southeast Asia Reaching new heights Acquired operatorship of Growing horizons Oman acquisition, Corridor & Natuna new GSAs

2025

2025

2025

Expanding Sumatra footprint First renewable contract

Copper investment Jointly acquired Amman Mineral Nusa Tenggara copper and gold mine

Power business Secured full control of Medco Power and established our 3 core business lines

expansion Acquired Ophir plc with producing assets

in Indonesia, Thailand, and Vietnam

2019

Corridor PSC

2022

2023

2022

2023

Sakakemang and TGI acquisition

Energy for growth Further 24% Corridor PSC acquisition Going public PT Medco Energi Internasional Tbk IPO on IDX: MEDC

1994

1980

Signed Sarulla IPP, the world's largest single geothermal contract

2013

1995

2015

2016

LNG entry

2016

2017

Step change in offshore capability

2021

Building the future

Obtained 20 years

Regional ESG leadership Received MSCI ESG Rating A

Going public

PT Amman Mineral Internasional Tbk IPO on IDX: AMMN

In the beginning

Company founded

7 by Arifin Panigoro

First acquisition

Acquired operatorship in Rimau and South Sumatra PSCs

Built DSLNG, the first Indonesian midstream LNG facility

Acquired operatorship of South Natuna Sea Block B PSC

extension of

Senoro-Toili PSC





Delivering value through accretive Oil & Gas acquisitions and investments in Power and Mining

Diverse energy mix of Oil & Gas, Clean Power, and Copper & Gold Mining Assets





Mexico Yemen

Thailand

Bualuang, Thailand

Block

South Natuna

Simenggaris

Onshore Receiving

Tarakan

West Bangkanai

A Sea Block B

Facility, Singapore Bangkanai

Sarulla Geothermal Samosir Geothermal

Riau Gas-fired Bonjol Geothermal

Corridor

South Sumatra Region

Beluga

DEB, MEB &

ELB Gas-fired

North Sokang

Kalimantan

Sulawesi

Donggi-Senoro LNG

Tanzania

Oman

Sakakemang South Sakakemang

Amanah

EPE & MPE Gas-fired

The Energy Building

Java

Sampang

Madura

Senoro-Toili

Papua



Cibalapulang Mini-hydro Pusaka Mini-hydro



Ijen Geothermal

East and West

Bali Solar PVs

Sumbawa

Solar PV

Batu Hijau

Elang

Production Development Exploration

Gas Pipeline

West Natuna Transportation System Grissik-Batam-Singapore

Grissik-Duri

Installed Development Exploration

Production Development Exploration



8

Oil & Gas Power Copper & Gold Mining



‌9 Bualuang Platform, Thailand







Building diversification and resilience for the long term







Expanding successful Oil & Gas business model to support growing energy demand

Investing in Clean & Renewable Power and in Copper & Gold Mining to capture long-term

growth

ESG leadership and committed to long-term decarbonization

Energy for Growth

Enhancing shareholder returns through disciplined investment, dividends

and deleveraging

10