PT Medco Energi Internasional Tbk : GRI Performance Data 2025

About this update from Pt Medco Energi Internasional Tbk

Value. Focus. Growth. 2025 GRI Performance Data PT Medco Energi Internasional Tbk ‌Contents 1 List of Entities 2 List of Assets Our Approach to Sustainability 3 GRI 2: General Disclosure 2021 3 GRI 2-23 7 GRI 2-24 Pursuing Excellence in Governance 9 GRI 205: Anti-Corruption 2016 9 GRI 205-1 9 GRI 205-2 9 GRI 415: Public Policy 2016 9 GRI 415-1 Driving a Sustainable Future through Climate Action 10 GRI 302: Energy 2016 - Oil & Gas 10 GRI 302-1 10 GRI 302-3 12 GRI 305: Emissions 2016 - Oil & Gas 12 GRI 305-1 13 GRI 305-2 14 GRI 305-3 15 GRI 305-4 15 GRI 305-7 GRI 302: Energy 2016 - Power 18 GRI 302-1 18 GRI 302-3 GRI 305: Emissions 2016 - Power 19 GRI 305-1 19 GRI 305-2 20 GRI 305-3 20 GRI 305-4 20 GRI 305-7 Advancing Our Health and Safety Culture 22 GRI 403: Occupational Health and Safety 2018 22 GRI 403-9 Creating Opportunities for Communities 27 GRI 203: Indirect Economic Impacts 2016 27 GRI 203-1 27 GRI 203-2 30 GRI 413: Local Communities 2016 30 GRI 413-1 37 GRI 410: Security Practices 2016 37 GRI 410-1 Strengthening Our People and Digital Transformation 38 GRI 2: General Disclosure 2021 38 GRI 2-7 40 GRI 401: Employment 2016 40 GRI 401-1 42 GRI 401-2 42 GRI 401-3 GRI 404: Training and Education 2016 42 GRI 404-2 43 GRI 404-3 GRI 405: Diversity and Equal Opportunity 2016 43 GRI 405-1 Appendix GRI Index Pursuing Driving a Advancing Our Creating Strengthening PT Medco Energi Internasional Tbk 1 Our Approach to Excellence in Sustainable Future Health and Safety Opportunities for Our People and Digital 2025 GRI Performance Data Sustainability Governance through Climate Action Culture Communities Transformation Value. Focus. Growth. Pursuing Driving a Advancing Our Creating Strengthening PT Medco Energi Internasional Tbk Our Approach to Excellence in Sustainable Future Health and Safety Opportunities for Our People and Digital 2025 GRI Performance Data Sustainability Our Governance through Climate Action Culture Communities Transformation Value. Focus. Growth. ‌1 GRI Performance Data List of Entities The following is the list of MedcoEnergi asset names and their corresponding legal entities: Name of Assets Name of Legal Entities Oil & Gas Oman KSF Medco LLC Thailand (Bangkok Office) Medco Energi Thailand (Bualuang) Limited Thailand (Field) Medco Energi Thailand (Bualuang) Limited Medco Energi Thailand (E&P) Limited Singapore Office Medco Energi Global Pte Ltd Block A PT Medco E&P Malaka South Sumatra Block PT Medco E&P Indonesia Rimau PT Medco E&P Rimau South Natuna Sea Block B Medco E&P Natuna Ltd Lematang PT Medco E&P Lematang Medco Lematang BV Lematang E&P Limited Tarakan PT Medco E&P Tarakan Madura Offshore Medco Energi Madura Offshore Pty Ltd Sampang Medco Energi Sampang Pty Ltd Bangkanai Medco Energi Bangkanai Ltd Medco Energi Central Kalimantan Ltd Medco Energi Kerendan Limited Corridor Medco E&P Grissik Ltd Medco E&P Corridor S.A.U Sakakemang Medco E&P Sakakemang B.V. Jakarta Office PT Medco Energi Internasional Tbk Palembang Office PT Medco E&P Indonesia Banda Aceh Office PT Medco E&P Malaka Name of Assets Name of Legal Entities Power MEB PT Mitra Energi Batam DEB PT Dalle Energy Batam ELB PT Energi Listrik Batam Sarulla Geothermal PT Medco Geothermal Sarulla TJBPS PT TJB Power Services Cibalapulang Mini-hydro PT Bio Jatropha Indonesia Pusaka Mini-hydro PT Pembangkitan Pusaka Parahiangan MPI Headquarters PT Medco Power Indonesia MPE PT Multidaya Prima Elektrindo EPE PT Energi Prima Elektrika MRPR PT Medco Ratch Power Riau MPSI PT Medcopower Servis Indonesia Sumbawa Solar PV PT Medcopower Solar Sumbawa East Bali Solar PV PT Medcosolar Bali Timur Ijen Geothermal PT Medco Cahaya Geothermal PT Medco Power Geothermal Services Timor-1 PT Medco Power Energi Services Sulut-1 Pursuing Driving a Advancing Our Creating Strengthening PT Medco Energi Internasional Tbk 2 Our Approach to Excellence in Sustainable Future Health and Safety Opportunities for Our People and Digital 2025 GRI Performance Data Sustainability Governance through Climate Action Culture Communities Transformation Value. Focus. Growth. Pursuing Driving a Advancing Our Creating Strengthening PT Medco Energi Internasional Tbk Our Approach to Excellence in Sustainable Future Health and Safety Opportunities for Our People and Digital 2025 GRI Performance Data Sustainability Our Governance through Climate Action Culture Communities Transformation Value. Focus. Growth. ‌2‌ GRI Performance Data List of Assets The list of MedcoEnergi assets in the calculations for all data and information disclosed and assured by KAP PSS - EY, unless otherwise stated in each disclosure item, is as follows: Name of Assets 2023 2024 2025 Oil & Gas 1. Oman KSF 1. Oman KSF 1. Oman KSF 2. Block A 2. Block A 2. Block A 3. South Sumatra Block 1 3. South Sumatra Block 1 3. South Sumatra Block 1 4. Rimau 1 4. Rimau 1 4. Rimau 1 5. South Natuna Sea Block B 5. South Natuna Sea Block B 5. South Natuna Sea Block B 6. Lematang 1 6. Lematang 1 6. Lematang 1 7. Tarakan 7. Tarakan 7. Tarakan 8. Madura Offshore 8. Madura Offshore 8. Madura Offshore 9. Sampang 9. Sampang 9. Sampang 10. Bangkanai 10. Bangkanai 10. Bangkanai 11. Thailand (Field) 11. Thailand (Field) 11. Thailand (Field) 12. Thailand (Bangkok Office) 12. Thailand (Bangkok Office) 12. Thailand (Bangkok Office) 13. Jakarta Office 13. Jakarta Office 13. Jakarta Office 14. Singapore Office 14. Singapore Office 14. Singapore Office 15. Corridor 15. Corridor 15. Corridor 16. Palembang Office 16. Palembang Office 16. Palembang Office 17. Banda Aceh Office 17. Banda Aceh Office 18. Sakakemang Name of Assets 2023 2024 2025 Power 1. MEB 2 1. MEB 2 1. MEB 2 2. DEB 2 2. DEB 2 2. DEB 2 3. ELB 2 3. ELB 2 3. ELB 2 4. Sarulla Geothermal 4. Sarulla Geothermal 4. Sarulla Geothermal 5. TJBPS 5. TJBPS 5. TJBPS 6. Cibalapulang Mini-hydro 6. Cibalapulang Mini-hydro 6. Cibalapulang Mini-hydro 7. Pusaka Mini-hydro 7. Pusaka Mini-hydro 7. Pusaka Mini-hydro 8. MPI Headquarters 8. MPI Headquarters 8. MPI Headquarters 9. MPE 3 9. MPE 3 9. MPE 3 10. EPE 3 10. EPE 3 10. EPE 3 11. Ijen Geothermal 4 11. Ijen Geothermal 4 11. Ijen Geothermal 4 12. MRPR 5 12. MRPR 5 12. MRPR 5 13. MPSI 13. MPSI 13. MPSI 14. Sumbawa Solar PV 14. Sumbawa Solar PV 14. Sumbawa Solar PV 15. West Bali Solar PV 15. East Bali Solar PV 15. East Bali Solar PV 16. Timor-1 16. Timor-1 17. Sulut-1 17. Sulut-1 South Sumatra Block (SSB), Rimau and Lematang represent South Sumatra Region. Mitra Energi Batam (MEB), Dalle Energi Batam (DEB) and Energi Listrik Batam (ELB) represent Batam IPP. Multidaya Prima Elektrindo (MPE) and Energi Prima Elektrika (EPE) represent South Sumatra IPP. PT Medco Power Geothermal Services is included in Ijen Geothermal starting in 2024. Medco Ratch Power Riau (MRPR) represents Riau IPP. Pursuing Driving a Advancing Our Creating Strengthening PT Medco Energi Internasional Tbk Our Approach to Excellence in Sustainable Future Health and Safety Opportunities for Our People and Digital 2025 GRI Performance Data Sustainability Governance through Climate Action Culture Communities Transformation Value. Focus. Growth. ‌3 Our Approach to Sustainability GRI 2 - General Disclosure 2021 Individual Disclosure Items 2025 GRI 2-23: Policy commitment a. Describe its policy commitments for responsible business conduct, including: Corporate MedcoEnergi's commitments to responsible business conduct are defined in policies that govern the Board of Commissioners, Board of Directors, the Senior Leadership and all employees to not only ensure good business conduct but also to achieve safe, effective and efficient business operations in accordance with all applicable laws and regulations. Business conduct management: Our governance is founded on the principles of Transparency, Accountability, Responsibility, Independence and Fairness. The Good Corporate Governance (GCG) guides us on how our organisation should be governed by the MedcoEnergi Board of Commissioners (BoC) and Board of Directors (BoD). By implementing these principles, MedcoEnergi aims to mitigate negative impacts related to poor governance, which could lead to unethical practices, financial mismanagement and diminished stakeholder confidence. The GCG can be accessed at https://www.medcoenergi.com/en/our-sustainability/governance-ethics/good-corporate-governance/ . Employee ethical conduct management: We developed our Code of Conduct (i.e., our Code) based on benchmarks with multinational companies and international leading practices as well as input from relevant corporate divisions. Our Code is based on the corporate values of MedcoEnergi: professional, ethical, open and innovative. Our Code defines the expectations, roles and responsibilities we expect our people to uphold when conducting MedcoEnergi's business. This Code is aligned with international best practices in human rights, personal data privacy, anti-corruption and anti-money laundering. The Code of Supplier is part of our Code. Our Code can be accessed at https://www.medcoenergi.com/en/our-sustainability/governance-ethics/our-code/ . In March 2024, MedcoEnergi launched its Corporate Anti-Money Laundering (AML) policy No COP-AIC-EXC-POL-003 dated 12 March 2024 to strengthen our commitment to prohibit money laundering and set out the rules and guidelines for directors, employees and business partners in relation to the prevention of money laundering across our business. This policy can be accessed at https://www.medcoenergi.com/en/our-sustainability/governance-ethics/sustainable-compliance/ . MedcoEnergi's Sustainability Policy outlines our commitments to maintain healthy, safe workplaces built upon a culture of mutual respect and our commitment to respect human rights, which is in line with the UN Guiding Principles for Business and Human Rights and the Voluntary Principles on Security and Human Rights. Our Sustainability Policy can be accessed at https://www.medcoenergi.com/en/our-sustainability/our-approach/sustainability-policy/ . MedcoEnergi's HSE Policy outlines the Company's commitment to continuously improve HSE performance. It aims to achieve zero incidents, injuries and illnesses in all our activities and to protect our employees and stakeholders as well as the environment where we operate. The policy was updated in October 2024 to strengthen environmental governance, including enhanced stakeholder consultation, regular environmental reporting, expanded coverage of environmental dependencies, impacts, risks, and opportunities, and alignment with relevant global environmental treaties and policy objectives. Our HSE Policy can be accessed at https://www.medcoenergi.com/en/our-sustainability/health-safety/hse-policy/ . MedcoEnergi's Oil & Gas' Community Development Policy outlines our commitment to be a leading company in conducting social responsibility initiatives and activities in an ethical and sustainable manner and by listening and acting in response to the needs of the stakeholders wherever we operate. Our Community Development Policy can be accessed at https://www.medcoenergi.com/en/our-sustainability/social-and-communities/creating-opportunities/ . MedcoEnergi's Oil & Gas' Security Policy describes our commitment to providing protection for employees, assets, facilities, operations and its reputation based on the Company's Mission, Vision and Values to secure the working environment as a foundation for sustainable business growth. Our Security Policy can be accessed at https://www.medcoenergi.com/en/our-sustainability/social-and-communities/creating-opportunities/ . The Security Policy was updated in July 2025 with the following amendment/revisions for improvement: MedcoEnergi's Human Rights Policy describes our commitment to respect human rights as set out in the Universal Declaration of Human Rights (UDHR) and other instruments such as the International Labour Organization (ILO) Declaration on Fundamental Principles and Rights at Work, comply with applicable laws of the countries where we operate, promote human rights through the provision of accessible and affordable energy. This policy was signed on 10 January 2024 and can be accessed at https://www.medcoenergi.com/en/our-sustainability/human-rights/ . The authoritative intergovernmental instruments that the commitments reference; Whether the commitments stipulate conducting due diligence; Whether the commitments stipulate applying the precautionary principle; Whether the commitments stipulate respecting human rights PDCA Framework: Adopted the Plan-Do-Check-Adjust (PDCA) method for a more structured and continuously improving security process. MSMS Alignment: Fully aligned with the Medco Security Management System (MSMS) to ensure a consistent, company-wide security approach. Digital Threats: Updated Pillar 4 to specifically cover digital threats and cybersecurity risks, recognizing their growing importance alongside physical security. Pursuing Driving a Advancing Our Creating Strengthening PT Medco Energi Internasional Tbk Our Approach to Excellence in Sustainable Future Health and Safety Opportunities for Our People and Digital 2025 GRI Performance Data Sustainability Governance through Climate Action Culture Communities Transformation Value. Focus. Growth. 4 Individual Disclosure Items 2025 b. Describe its specific policy commitment to respect human rights, including: MedcoEnergi describes its specific commitment to respect human rights in: c. Provide links to the policy commitments if publicly available, or, if the policy commitments are not publicly available, explain the reason for this Links to Policies: Note: We summarise our commitment on Anti-Money Laundering in our website (please see https://www.medcoenergi.com/en/our-sustainability/governance-ethics/sustainable-compliance/ ). Anti-Money Laundering Policy is not publicly available as it is considered an internal company policy. The internationally recognized human rights that the commitment covers; The categories of stakeholders, including at-risk or vulnerable groups, that the organization gives particular attention to in the commitment Code of Conduct Code of Supplier Sustainability Policy Security Policy Community Development Policy Human Rights Policy The internationally recognized human rights principles are stated in the following policies and relevant sections: Code of Conduct , page 16 in the Safe Workplace sub-section Human Rights section: "One of our Company's commitments in doing business ethically includes respecting others who work at and for the Company, treat every individual with respect, and doing our business operations in compliance to the relevant human rights laws wherever MedcoEnergi operates." Code of Supplier key elements bullet 1. "Follow the same ethical standards, including Our Code and the applied Company's policies/ procedures." MedcoEnergi's Sustainability Policy page 1 in the Environmental and Social Development section. "We are committed to complying with all applicable laws and regulations, to respecting human rights in line with the UN Guiding Principles for Business and Human Rights and the Voluntary Principles on Security and Human Rights, and to learning from and applying industry best practice and relevant international standards." MedcoEnergi's Oil & Gas' Security Policy paragraph 3. "MedcoEnergi is committed to complying with relevant laws and regulations, to respecting human rights in line with the UN Guiding Principles on Business and Human Rights and the Voluntary Principles on Security and Human Rights, and to learning from applying industry best practices with International Standards". MedcoEnergi's Oil & Gas' Community Development Policy paragraph 1. "MedcoEnergi is committed to creating a positive impact for the communities in our operational areas by deepening our engagement and empowering the people, creating self-reliant communities that are aligned with the United Nations Sustainable Development Goals". MedcoEnergi's Human Rights Policy , MedcoEnergi is committed to respecting human rights as set out in the Universal Declaration of Human Rights (UDHR) and other instruments such as the International Labour Organization Declaration on Fundamental Principles and Rights at Work. The Human Rights Policy encompasses a Management Framework, Commitments, Grievance Mechanisms, Governance and applies to all MedcoEnergi companies and subsidiaries globally, including all business partners. The policies also mention the categories of stakeholders: Local Labour, Children, Local Communities in Code of Conduct page 16, in the Safe Workplace sub-section Human Rights section. Suppliers, including suppliers of services, equipment, materials and other goods, agents, consultants, contractors, subcontractors and consortium in the Code of Supplier. Local Communities in MedcoEnergi's Sustainability Policy page 1, in the Environmental and Social Development and Local Community Empowerment section. Partnership with security stakeholders in MedcoEnergi's Oil & Gas' Security Policy point 6. Society & local communities and Business partners & their employees in MedcoEnergi's Human Rights Policy page 2, in Our Commitments section. Directors, employees and business partners in relation to the prevention of money laundering across the Company's business. This Policy should be read in conjunction with the Code of Conduct, all relevant Company policies, procedures, and the applicable laws in all countries where the Company operations in the Corporate Anti-Money Laundering Policy page 7. Code of Conduct: https://www.medcoenergi.com/en/our-sustainability/governance-ethics/our-code/ Code of Supplier: https://www.medcoenergi.com/en/our-sustainability/governance-ethics/code-of-supplier/ Sustainability Policy: https://www.medcoenergi.com/en/our-sustainability/our-approach/sustainability-policy/ HSE Policy: https://www.medcoenergi.com/en/our-sustainability/health-safety/hse-policy/ Community Development Policy: https://www.medcoenergi.com/en/our-sustainability/social-and-communities/creating-opportunities/ Security Policy: https://www.medcoenergi.com/en/our-sustainability/social-and-communities/creating-opportunities/ Human Rights Policy: https://www.medcoenergi.com/en/our-sustainability/human-rights/ Corporate Anti-Money Laundering (AML): https://www.medcoenergi.com/en/our-sustainability/governance-ethics/sustainable-compliance/ Pursuing Driving a Advancing Our Creating Strengthening PT Medco Energi Internasional Tbk Our Approach to Excellence in Sustainable Future Health and Safety Opportunities for Our People and Digital 2025 GRI Performance Data Sustainability Governance through Climate Action Culture Communities Transformation Value. Focus. Growth. 5 Individual Disclosure Items 2025 d. Report the level at which each of the policy commitments was approved within the organization, including whether this is the most senior level All of our corporate policies are approved by the Chief Executive Officer or at least one of the Board of Directors (BOD) members. The dates of approvals are either stated in the policies or elsewhere on the websites or in the internal documents. These policies were approved by MedcoEnergi's Board of Directors (BoD) and communicated to all employees and relevant external stakeholders through emails, trainings and other forms of familiarisations and engagements: e. Report the extent to which the policy commitments apply to the organization's activities and to its business relationships Code of Conduct : Page 5 - Our Code shall be communicated to, implemented and followed by all stakeholders, including the Board of Commissioners, Board of Directors employees, affiliates, business partners and guests of the Company without any exception and regardless of their geographical locations. Code of Supplier: Paragraph 1 - All of our stakeholders, including suppliers, shall follow this commitment. Paragraph 2 - We expect this standard to be followed by all of our suppliers, including suppliers of services, equipment, materials and other goods, agents, consultants, contractors, subcontractors and consortium or other basis. MedcoEnergi's Sustainability Policy: Paragraph 6 - This policy is mandatory and sets the expectations for all employees and business units managed by Medco Energi Internasional and it should be communicated to and understood by our stakeholders. MedcoEnergi's HSE Policy: Last paragraph - This policy applies to all employees and contractors of the Company and its subsidiaries. MedcoEnergi's Oil & Gas' Community Development Policy: Paragraph 2 - This policy applies to all community development initiatives and activities in all the Company's assets. MedcoEnergi's Oil & Gas' Security Policy: Last paragraph - It is the responsibility of everyone in the Company to comply with this Policy and support its implementation. MedcoEnergi's Human Rights Policy: Paragraph 4 - This commitment in this policy applies to all MedcoEnergi companies and subsidiaries globally, including all business partners from which we expect the same high standards and commitment. Corporate Anti-Money Laundering Policy: Page 7 - This policy applies to the Company's directors and employees although the Company expects that business partners and other performing work or services on behalf of company will comply with this policy Code of Conduct: 4 May 2020 Code of Supplier: 26 December 2022 MedcoEnergi's Sustainability Policy: 8 May 2020 MedcoEnergi's HSE Policy: October 2024 MedcoEnergi's Oil & Gas' Community Development Policy: April 2020 MedcoEnergi's Oil & Gas' Security Policy: July 2025 (update) MedcoEnergi's Human Rights Policy: 10 January 2024 Corporate Anti-Money Laundering: 12 March 2024 Pursuing Driving a Advancing Our Creating Strengthening PT Medco Energi Internasional Tbk Our Approach to Excellence in Sustainable Future Health and Safety Opportunities for Our People and Digital 2025 GRI Performance Data Sustainability Governance through Climate Action Culture Communities Transformation Value. Focus. Growth. 6 Individual Disclosure Items 2025 f. Describe how the policy commitments are communicated to workers, business partners, and other relevant parties Our process for our Code of Conduct commitments requires them to be read, agreed to, and regularly signed by all workers through the annual Statement of Adherence (SoA) and Conflict of Interest (CoI) Declaration. Our process for our Code of Supplier commitments requires them to be read, agreed to, and signed by business partners whenever contracts are signed. The contracts between MedcoEnergi and third parties using MedcoEnergi's standard contracts include clauses that the contractors in countries where MedcoEnergi operates have committed themselves to complying with. This includes all applicable laws and regulations and MedcoEnergi's Business Ethics (Code of Conduct and Code of Supplier). We communicate our policy commitments to the stakeholders through: All our policies are available in English and Indonesian and can be accessed via our respective websites. Code of Conduct & Code of Supplier : Posted in MedcoEnergi's website: Code of Conduct: https://www.medcoenergi.com/en/our-sustainability/governance-ethics/our-code/ Code of Supplier: https://www.medcoenergi.com/en/our-sustainability/governance-ethics/code-of-supplier/ Internal familiarisation and engagements: Annual Statements of Adherence (SoA) - email blast in May 2025 and Conflicts of Interest (CoI) declarations - email blast in October 2025 External familiarisation and engagements: (1) SCM e-Newsletter Q2 & Q3 period for Oil & Gas and Q4 period for Power; (2) Vendor Day (Feb 2025); (3) Contractor Forum (May 2025) MedcoEnergi's Sustainability Policy : Posted in MedcoEnergi's website https://www.medcoenergi.com/en/our-sustainability/our-approach/sustainability-policy/ Internal familiarisation and engagements: (1) Medco 101 training for Leaders (Aug 2025); (2) Field Compliance 2025 Risk Awareness (Aug 2025) (3) Site Visit Audit on MEB DEB & Corridor (Nov 2025) (4) Induction to New Hire (Sep & Dec 2025) External familiarisation and engagements: (1) SCM Vendor Day (Feb 2025); (2) Contractor Forum (May 2025); (3) SCM e-Newsletter Q4 period for Power MedcoEnergi's Oil & Gas' Community Development Policy : Posted in MedcoEnergi's website https://www.medcoenergi.com/en/our-sustainability/social-and-communities/creating-opportunities/ MedcoEnergi's Human Rights Policy : Posted in MedcoEnergi's website: https://www.medcoenergi.com/en/our-sustainability/human-rights/ Internal familiarisation and engagements: (1) Medco 101 (Aug 2025); (2) Human Rights Familiarisation to employees and leaders engagement in Corridor, Onshore, Thailand, Oman and SCM (Apr, May, Jun, Nov, and Dec 2025); (3) The Voluntary Principles on Security and Human Rights (VPSHR) Training (Jul 2025); (4) Induction to New Hire (Sep & Dec 2025); External familiarisation and engagements: (1) SCM Newsletter Q2, Q3, Q4 period for Oil & Gas and Q4 period for Power; (2) Contractor Forum (May 2025); (3) Human Rights Policy Workshop for Vendor (Jun 2025) MedcoEnergi's HSE Policy : Posted in MedcoEnergi's website: https://www.medcoenergi.com/en/our-sustainability/health-safety/hse-policy/ Internal familiarisation and engagements: (1) Tarakan Safety Morning Meeting (Apr 2025); (2) HSEAC MM & Log. (Aug 2025) MedcoEnergi's Oil & Gas' Security Policy : Posted in MedcoEnergi's website: https://www.medcoenergi.com/en/our-sustainability/social-and-communities/creating-opportunities/ Internal familiarisation: Security Monthly Meeting (Jul 2025) Corporate Anti-Money Laundering Policy : Posted in MedcoEnergi's website: https://www.medcoenergi.com/en/our-sustainability/governance-ethics/sustainable-compliance/ Internal familiarisation and engagements: refer to GRI 205-2 External familiarisation and engagements: refer to GRI 205-2 Pursuing Driving a Advancing Our Creating Strengthening PT Medco Energi Internasional Tbk Our Approach to Excellence in Sustainable Future Health and Safety Opportunities for Our People and Digital 2025 GRI Performance Data Sustainability Governance through Climate Action Culture Communities Transformation Value. Focus. Growth. 7 Individual Disclosure Items 2025 GRI 2-24: Embedding policy commitments a. Describe how it embeds each of its policy commitments for responsible business conduct throughout its activities and business relationships, including: i. How it allocates responsibility to implement the commitments across different levels within the organization MedcoEnergi defines a set of standards to govern the conduct of the Board of Commissioners, Board of Directors, and all employees for the good and safety of all parties, as well as to achieve an effective and efficient business operation conducted in accordance with all applicable laws and regulations." This statement aligns with the 2024 Sustainability Report (page 52): "Pursuing Excellence in Our Governance", and the 2024 Annual Report ( pages 98-101 ): "Corporate Governance. pages 8-9 of 20. Further information about both the SRMC and GCG Committees can be found in the 2024 Annual Report, pages 102-103 and 108-109, and the 2024 Sustainability Report, pages 40-41 and 52-53. Meeting notes from the SRMC and GCG Committees are kept internally. https://www.medcoenergi.com/en/our-sustainability/governance-ethics/good-corporate-governance/ . ii. How it integrates the commitments into organizational strategies, operational policies, and operational procedures conduct a series of offline and online Familiarisation on sites, along with human rights policy. Furthermore, we completed the Human Rights e-learning for MTBL (90 employees attended) and Corridor (302 employees attended). We also conducted Familiarisation sessions for 16 Block A vendors. It is part of the BoD's roles and responsibilities to oversee the implementation of the policy commitments. This is stated as follows: MedcoEnergi's Sustainability Manual (October 2022), pages 8-10 of 20, within the Sustainability Governance section: Structure & Oversight, and Roles & Responsibilities. Code of Conduct (page 5): There are various divisions in the organisation with day-to-day responsibilities for implementing each of the policy commitments. This is officially stated in the following documents: MedcoEnergi's Sustainability Manual (October 2022), pages 10-20 of 20, within the Sustainability Governance section: Structure & Oversight, and Roles & Responsibilities for cross-functional divisions, and Appendix E (page 18 of 20) for ESG Governance. To support MedcoEnergi's best interests, Our Code must be communicated to, implemented by, and followed by all stakeholders, including the Board of Commissioners, Board of Directors, employees, affiliates, business partners, and guests of the Company, without exception and regardless of their geographical locations (CoC, page 5). The MedcoEnergi Sustainability Policy commitments are formally discussed in regular Sustainability and Risk Management Committee (SRMC) meetings, while the Code of Conduct and Code of Supplier are formally discussed in regular Good Corporate Governance (GCG) Committee meetings. Information about the SRMC is provided in the MedcoEnergi Sustainability Manual, Discussions and engagements about responsible business conduct between different levels or divisions in the organisation are held for cross-functional teams, employees, and business partners. The activities and outcomes are reported to the GCG (Good Corporate Governance) Committee (for BoC and BoD) by the Audit and Integrity Compliance (AIC) Division. The Corporate Ethics and Compliance Committee (CECC) was established in October 2024 to ensure objective and fair processes in addressing all reported incidents, and to align with legal requirements, industry standards and international best practices. All allegation reports received through whistleblowing channels were promptly followed up by applying the principles of trust, impartiality and protection. MedcoEnergi determined appropriate and consistent disciplinary actions in accordance with our procedures for addressing allegation reports. These procedures involved a thorough review by the Ethics and Compliance Committee, consisting of the Board of Directors (BoD) level, Senior Vice President Business Support, the Head of Corporate A&IC, HR, Legal and other relevant functions, as deemed necessary. This information can be accessed at: We have an Enterprise Risk Management (ERM) policy in place (MEI-CRM-GL-001 dated 1 July 2022), which is aligned with our policies. All risks considered across the universe of risk categories reflect how responsible business conduct is implemented. Our policies align with the following economic, environmental, social and human rights impact assessments: The Sustainability Policy was defined based on the initial materiality assessment in 2018 and confirmed through a double materiality assessment in 2022. The human rights assessments for the corporate level were conducted in 2022, and the results were used to establish our standalone human rights policy. The Human Rights Impact Assessment (HRIA) for Block A and JOB Tomori was conducted in 2023 and finalised in January 2024. The HRIA was conducted as part of lenders' request to meet Equator Principles 4/EP4 requirements. As a follow-up to the Human Rights Impact Assessment (HRIA) in 2024, we launched respectful workplace policy which is an internal policy and c. As part of the annual Performance Management System (PMS) cycle, we incorporate sustainability-related key performance indicators (KPIs) into our Team Performance Contracts (TPCs). We align TPC outcomes with our reward programmes, including salary reviews and performance incentives. The Sustainability Assessment Guidelines for Projects December 2020 and updated in December 2024, as well as Sustainability Assessment Guidelines for Operations November 2022 documents show how Medco Oil & Gas identifies, assesses, and manages environmental and social risks across all stages in the projects and operations. We implement our Operational Excellence Management System (OEMS), Anti Bribery Management System (ABMS), HSE Management System, Social Management System (SMS), Medco Security Management System (MSMS), and Contractor HSE Management System (CHSEMS). These include internal audits to monitor compliance with policy commitments. We also monitor compliance with the policy commitments through our Sustainability Assessment for projects and operations. Pursuing Driving a Advancing Our Creating Strengthening PT Medco Energi Internasional Tbk Our Approach to Excellence in Sustainable Future Health and Safety Opportunities for Our People and Digital 2025 GRI Performance Data Sustainability Governance through Climate Action Culture Communities Transformation Value. Focus. Growth. 8 Individual Disclosure Items 2025 iii. How it implements its commitments with and through its bu siness relationships Our procurement practices apply pre-qualification processes, bidding criteria, or screening criteria consistent with the expectations stipulated in MedcoEnergi's Code of Conduct in the section entitled "Respecting Our Stakeholders", sub-section "Our Business Partners" and Code of Supplier. Contracts between MedcoEnergi and third parties using MedcoEnergi's standard contracts include clauses that the contractors in countries where MedcoEnergi operates have committed themselves to complying with. This includes all applicable laws and regulations and MedcoEnergi's Business Ethics (Code of Conduct and Code of Supplier). Our business processes consider the Code of Conduct's and Code of Supplier's commitments whenever we determine whether to initiate, continue, or terminate a business relationship. The latest contract template, incorporating a standalone Human Rights Policy and Sustainability Policy, was first implemented in July 2024. iv. Training that the organization provides on implementing the commitments MedcoEnergi provides various capability building and engagement sessions on implementing policy commitments: Note: The Gada Pratama Training programme is designed for new security guards and candidates. Programmes to upgrade employees' skills and transition assistance refer to GRI 404-2. Code of Conduct training refers to GRI 205-2 e through apprentice inductions and Medco 101 - for New Leaders. Code of Supplier through engagements with business partners on Vendor Day. The security training related to human rights training refers to GRI 410 through Gada Pratama Training. Pursuing Driving a Advancing Our Creating Strengthening PT Medco Energi Internasional Tbk Our Approach to Excellence in Sustainable Future Health and Safety Opportunities for Our People and Digital 2025 GRI Performance Data Sustainability Governance through Climate Action Culture Communities Transformation Value. Focus. Growth. ‌9 Pursuing Excellence in Governance GRI 205: Anti-Corruption 2016 Individual Disclosure Items Type of Entity 2023 2024 2025 Value % Value % Value % GRI 205-1: Operations assessed for risks related to corruption a. Total number and percentage of operations assessed for risks related to corruption (based on Fraud Risk Assessment workshops) Oil & Gas 1 13 100% 13 100% 13 93% 2 Power 10 71% 3 10 63% 4 10 63% 4 b. Significant risks related to corruption identified through the risk assessment Corporate 2023 : Corporate crime liability risk, procure to pay fraud risk, conflict of interest risk, OFAC violations risk and other sanction compliance violation, and business ethics violation. 2024 : Corporate crime liability risk, procure to pay fraud risk, conflict of interest risk, OFAC violations risk and other sanction compliance violation, business ethics violation, risk of intellectual property infringement/misappropriation and risk of workplace conflict and harassment. 2025 : Corporate crime liability, Procure-to-Pay (P2P) fraud risk, Conflict of Interest, Risk of OFAC & Other Sanction Compliance violation, Business Ethics violation, Risk of Harassment, and Risk of Falsifying, Misleading and Fraudulent or Manipulated Company's Data/Information. GRI 205-2: Communication and training on anti-corruption policies and procedures a. Total number and percentage of governance body members that the organization's anti- corruption policies and procedures have been communicated to (based on email communication to governance body members) Corporate 13 100% 13 100% 13 100% b. Total number and percentage of employees that the organization's anti-corruption policies and procedures have been communicated to (based on email communication to employees regarding anti-corruption policies and procedures) Oil & Gas 2,597 100% 2,526 100% 2,458 100% Power 901 100% 1,013 100% 1,037 100% The data includes Oil & Gas Domestic and International. This figure is based on 14 assets, reflecting the inclusion of the Singapore Office in the 2025 scope of assurance. This number is based on 14 assets because the exclusion of Medco Sumbawa Gas due to PT Amman Mineral Internasional Tbk (AMMN) acquired 100% of the shares of PT Medco Sumbawa Gas from PT Medco Power Indonesia (MEDP). This number is based on 16 assets due to several conditions: Due to West Bali Solar PV (MSBB) Project completion and its transition to operational phase as per 1 January 2024 all employee of MSBB transferred to East Bali Solar PV (MSBT). The inclusion of PT Medco Power Energi Services and PT Medco Power Geothermal Services. Individual Disclosure Items Type of Entity 2023 2024 2025 Value % Value % Value % c. Total number and percentage of business partners that the organization's anti-corruption policies and procedures have been communicated to Oil & Gas 693 100% 655 100% 772 100% Power 1,615 100% 2,181 100% 2,852 100% d. Total number and percentage of governance body members that have received training on anti-corruption (based on online participative training through the Statement of Adherence forms) Corporate 13 100% 13 100% 13 100% e. Total number and percentage of employees that have received training on anti-corruption Light Education (Oil & Gas) 2,597 100% 2,526 100% 2,458 100% Light Education (Power) 901 100% 1,013 100% 1,037 100% Participative Training (Oil & Gas) 2,534 97.57% 2,491 98.61% 2,424 98.62% Participative Training (Power) 900 99.89% 1,012 99.90% 1,037 100% Intensive Training 5 (Oil & Gas) 707 27.22% 590 23.36% 282 11.23% Intensive Training 6 (Power) 265 29.41% 505 49.85% 366 35.29% Light education through emails sent to employees Participative training in both Oil & Gas and Power through the Statement of Adherence forms Intensive training in both Oil & Gas and Power through face-to-face trainings, online trainings, and Ethics Liaison Officer sessions GRI 415: Public Policy 2016 Individual Disclosure Items 2023 2024 2025 GRI 415-1: Political Contribution a. Total monetary value of financial and in-kind political contributions made directly and indirectly by the organization by country and recipient/beneficiary MedcoEnergi does not support any political party and does not make contributions or donations to any political party or affiliated organisation in any location MedcoEnergi operates. b. If applicable, how the monetary value of in-kind contributions was estimated Not Applicable In 2025, in addition to the permanent employees which has been reported in the table, Medco E&P Oil and Gas Domestic & International has delivered trainings on anti-corruption to a total of 2,883 participants (consists of employees and third party contractors, and one participant can join multiple anti-corruption trainings). These numbers are not assured by KAP PSS - EY. In 2025, in addition to the permanent employees which has been reported in the table, Medco Power has delivered trainings on anti-corruption to a total of 499 participants (consists of employees and third party contractors, and one participant can join multiple anti-corruption trainings). These numbers are not assured by KAP PSS - EY. Pursuing Driving a Advancing Our Creating Strengthening PT Medco Energi Internasional Tbk Our Approach to Excellence in Sustainable Future Health and Safety Opportunities for Our People and Digital 2025 GRI Performance Data Sustainability Governance through Climate Action Culture Communities Transformation Value. Focus. Growth. ‌10 Driving a Sustainable Future through Climate Action GRI 302: Energy 2016 - Oil & Gas 1 Individual Disclosure Items 2023 2024 2025 GRI 302-1: Energy consumption within the organization a. Total fuel consumption within the organization from non-renewable sources, in gigajoules, and including fuel types used 38,296,845.28 a 34,899,653.31 b 32,563,539.14 b,c Compressed Natural Gas (CNG) Natural gas Gasoline Aviation gasoline Jet fuel (kerosene) Diesel Fuel oil Crude oil b. Total fuel consumption within the organization from renewable sources, in gigajoules, and including fuel types used 264,406.66 a 332,816.77 b 312,416.61 b,d Gasohol 91/95 (E10) Gasohol (E20) Diesel (B7) Biodiesel (B30) Biodiesel (B35) Solar energy Gasohol (E5) Diesel (B7) Biodiesel (B30) Biodiesel (B35) Solar energy Gasohol (E5) Diesel (B7) Biodiesel (B30) Biodiesel (B35) Biodiesel (B40) Solar Energy c. In gigajoules, the total: i. Electricity consumption; 177,400.20 e 246,981.54 f 283,910.96 f,h ii. Heating consumption; - - - iii. Cooling consumption; - - - iv. Steam consumption - 487,971.87 g 657,521.79 g,i d. In gigajoules, the total: i. Electricity sold; - - - ii. Heating sold; - - - iii. Cooling sold; - - - iv. Steam sold - - - e. Total energy consumption within the organization, in gigajoules 38,738,652.13 a,e 35,967,423.49 b,f,g 33,817,388.51 b,c,d,f,g,h,i Individual Disclosure Items 2023 2024 2025 f. Standards, methodologies, assumptions, and/or calculation tools used 2023-2024 : American Petroleum Institute (API) Compendium 2009 The GHG Protocol for Corporate Accounting and Reporting Standard from WBCSD and WRI 2004 ISO 14064-1:2006 regarding specification with guidance at the organisation level for quantification and reporting of greenhouse gas emissions and removals James G. Speight, Natural Gas (Second Edition), Gulf Professional Publishing, 2019 2025 : American Petroleum Institute (API) Compendium 2009 The GHG Protocol for Corporate Accounting and Reporting Standard from WBCSD and WRI 2004 ISO 14064-1:2018 regarding specification with guidance at the organisation level for quantification and reporting of greenhouse gas emissions and removals James G. Speight, Natural Gas (Second Edition), Gulf Professional Publishing, 2019 g. Source of the conversion factors used Internal calculation with reference to API Compendium 2009 and Intergovernmental Panel on Climate Change (IPCC) Guidelines for National Greenhouse Gas Inventories - Volume 2 2006. GRI 302-3: Energy intensity a. Energy intensity ratio for the organization 2.88 a,e 2.86 b,f,g 2.84 b,c,d,f,g,h,i,j b. Organization-specific metric (the denominator) chosen to calculate the ratio GJ/TOE HC product (Gigajoules per Tonne of Oil Equivalent of Hydrocarbon product) c. Types of energy included in the intensity ratio; whether fuel, electricity, heating, cooling, steam, or all Fuel (renewable and non-renewable) and electricity Fuel (renewable and non- renewable), electricity and steam d. Whether the ratio uses energy consumption within the organization, outside of it, or both Within the organisation 1 Additional remarks for GRI 302: Energy - Oil & Gas in 2025 can be found on page 1 1 . Pursuing Driving a Advancing Our Creating Strengthening PT Medco Energi Internasional Tbk Our Approach to Excellence in Sustainable Future Health and Safety Opportunities for Our People and Digital 2025 GRI Performance Data Sustainability Governance through Climate Action Culture Communities Transformation Value. Focus. Growth. ‌11 Additional remarks for GRI 302: Energy - Oil & Gas GRI Asterisk Remarks Statement from MedcoEnergi GRI 302-1 and 302-3 a Scope of assets The list of assets in 2023- International : Oman KSF, Thailand and Singapore Office; Domestic : Rimau, South Sumatra Block, Lematang, Tarakan, Block A, Bangkanai, Palembang Office, South Natuna Sea Block B, Sampang, Madura Offshore, Corridor and Jakarta Office. Malaysia Office is not included starting 2023, due to stop operating in November 2022. b Scope of assets The list of assets in 2024-2025- International : Oman KSF, Thailand and Singapore Office; Domestic : Rimau, South Sumatra Block, Lematang, Tarakan, Block A, Bangkanai, Palembang Office, Banda Aceh Office, South Natuna Sea Block B, Sampang, Madura Offshore, Corridor and Jakarta Office. c Justification for the decrease in energy consumption from non-renewable sources Lower fuel gas consumption mostly attributed to operational improvements and several GHG emission reduction projects. d Justification for the decrease in energy consumption from renewable sources Lower biodiesel fuel consumption in 2025 mainly driven by less drilling activities in Madura Offshore. e List of assets The list of assets in 2023 that consume energy from purchased electricity consist of Palembang Office, Bangkanai, South Sumatra Block, Tarakan, South Natuna Sea Block B, Sampang, Thailand, Oman KSF, Singapore Office, Jakarta Office and Corridor. f List of assets The list of assets in 2024-2025 that consume energy from purchased electricity consist of Rimau, South Sumatra Block, Lematang, Tarakan, Block A, Bangkanai, Palembang Office, Banda Aceh Office, South Natuna Sea Block B, Sampang, Thailand, Oman KSF, Singapore Office, Jakarta Office and Corridor. g List of assets In 2024-2025, the asset that consume energy from purchased steam is Oman KSF. h Justification on the increase in purchased electricity consumption Full year implementation of power conversion to national grid in Lematang. i Justification on the increase in purchased steam consumption Higher purchased steam consumption for steam flood operation in Oman KSF. j Justification on the decrease in energy intensity Lower fuel gas consumption mostly attributed to operational improvements and several GHG emission reduction projects. Pursuing Driving a Advancing Our Creating Strengthening PT Medco Energi Internasional Tbk Our Approach to Excellence in Sustainable Future Health and Safety Opportunities for Our People and Digital 2025 GRI Performance Data Sustainability Governance through Climate Action Culture Communities Transformation Value. Focus. Growth. ‌12 GRI 305: Emissions 2016 - Oil & Gas 1 Individual Disclosure Items Type of Entity 2023 2024 2025 GRI 305-1: Direct (Scope 1) GHG emissions a. Gross direct (Scope 1) GHG emissions in metric tons of CO 2 equivalent Oil & Gas 4,223,200.48 a 3,738,219.65 b 3,739,915.72 b,c JOB Tomori 2 79,542.55 76,689.48 76,843.86 b. Breakdown of gross direct (Scope 1) GHG emissions by type of source for Oil & Gas in metric tons of CO 2 equivalent* i. Gross direct (Scope 1) GHG emissions from combustion; Oil & Gas 3,835,109.15 3,360,378.45 3,171,554.18 d ii. Gross direct (Scope 1) GHG emissions from flaring; Oil & Gas 317,246.99 312,829.22 466,449.45 e iii. Gross direct (Scope 1) GHG emissions from venting; Oil & Gas 28,092.93 23,000.46 21,214.86 f iv. Gross direct (Scope 1) GHG emissions from process (feedstock) emissions; Oil & Gas 2,154.81 863.64 621.71 g v. Gross direct (Scope 1) GHG emissions from fugitives Oil & Gas 40,596.59 41,147.88 80,075.52 h c. Gases included in the calculation Oil & Gas CO 2 , CH 4 , N 2 O, HFCs d. Gross direct and percentage of gross direct (Scope 1) GHG emissions from CH 4 for Oil & Gas i. Gross direct (Scope 1) GHG emissions from CH 4 in metric tons of CO 2 equivalent; Oil & Gas 98,520.42 a 88,938.97 b 97,379.12 b,i ii. Percentage of gross direct (Scope 1) GHG emissions from CH 4 Oil & Gas 2.33% 2.38% 2.60% e. Biogenic CO 2 emissions in metric tons of CO 2 equivalent Oil & Gas 18,887.01 a 23,924.14 b 22,200.05 b,j f. Base year for the calculation, if applicable, including: i. The rationale for choosing it; Oil & Gas MedcoEnergi has selected 2019 as our base year as the data is the best representation of MedcoEnergi's normal operations and production before the pandemic. ii. Emissions in the base year; Oil & Gas 5,419,585.82 tCO 2 e iii. The context for any significant changes in emissions that triggered recalculations of base year emissions Oil & Gas Not Applicable Additional remarks for GRI 305: Emissions - Oil & Gas in 2025 can be found on page 16-17. Joint Operating Body Pertamina - Medco E&P Tomori Sulawesi (JOB Tomori) is a non-operating asset, therefore the numbers reflect 30% MedcoEnergi's working interest and these numbers are not assured by KAP PSS - EY. Individual Disclosure Items Type of Entity 2023 2024 2025 g. Source of the emission factors and the global warming potential (GWP) rates used, or a reference to the GWP source Oil & Gas Source of emissions factors: Internal calculation with reference to American Petroleum Institute (API) Compendium 2009, United States Environmental Protection Agency Air Pollutant-42 (US EPA AP-42) and Intergovernmental Panel on Climate Change (IPCC) Guidelines for National Greenhouse Gas Inventories - Volume 2 2006. Source of GWP rates: IPCC Fourth Assessment Report h. Consolidation approach for emissions Oil & Gas Operational Control i. Standards, methodologies, assumptions, and/or calculation tools used Oil & Gas 2023-2024 : API Compendium 2009 US EPA AP-42 IPCC Guidelines for National Greenhouse Gas Inventories - Volume 2 2006 The GHG Protocol for Corporate Accounting and Reporting Standard from WBCSD and WRI 2004 EPA Mandatory Greenhouse Gas Reporting 2016 US EPA Greenhouse Gas Inventory Guidance 2016 ISO 14064-1:2006 regarding specification with guidance at the organisation level for quantification and reporting of greenhouse gas emissions and removals James G. Speight, Natural Gas (Second Edition), Gulf Professional Publishing, 2019 2025 : API Compendium 2009 US EPA AP-42 IPCC Guidelines for National Greenhouse Gas Inventories - Volume 2 2006 The GHG Protocol for Corporate Accounting and Reporting Standard from WBCSD and WRI 2004 EPA Mandatory Greenhouse Gas Reporting 2016 US EPA Greenhouse Gas Inventory Guidance 2016 ISO 14064-1:2018 regarding specification with guidance at the organisation level for quantification and reporting of greenhouse gas emissions and removals James G. Speight, Natural Gas (Second Edition), Gulf Professional Publishing, 2019 *) Notes: Source of emissions for combustion includes stationary combustion, mobile combustion, thermal oxidizer, incinerator, and waste heat boiler from Medco AirGHG tools Source of emissions for venting includes venting from storage tanks, loading operations, workover acitivity, and specific venting emissions from pneumatic devices and chemical injection pump from Medco AirGHG tools Source of emission for process (feedstock) includes dehydration and sulphur recovery unit from Medco AirGHG tools Source of emissions for fugitive emissions includes fugitive emissions of CO 2 and CH 4 , fugitive emissions of HFCs, and aerobic waste water treatment from Medco AirGHG tools Pursuing Driving a Advancing Our Creating Strengthening PT Medco Energi Internasional Tbk Our Approach to Excellence in Sustainable Future Health and Safety Opportunities for Our People and Digital 2025 GRI Performance Data Sustainability Governance through Climate Action Culture Communities Transformation Value. Focus. Growth. ‌13 Individual Disclosure Items Type of Entity 2023 2024 2025 GRI 305-2: Energy indirect (Scope 2) GHG emissions a. Gross location-based energy indirect (Scope 2) GHG emissions in metric tons of CO 2 equivalent Oil & Gas 26,354.18 k 72,584.14 l,m 91,863.09 l,m,o,q b. If applicable, gross market-based energy indirect (Scope 2) GHG emissions in metric tons of CO 2 equivalent Oil & Gas 26,354.18 k,p 60,359.02 l,m,q 72,226.99 m,o,q c. If available, the gases included in the calculation; whether CO 2 , CH 4 , N 2 O, HFCs, PFCs, SF 6 , NF 3 , or all Oil & Gas CO 2 CO 2 , CH 4 , N 2 O d. Base year for the calculation, if applicable, including: i. the rationale for choosing it Oil & Gas MedcoEnergi has selected 2019 as our base year as the data is the best representation of MedcoEnergi's normal operations and production before the pandemic. ii. Emissions in the base year Oil & Gas 587.62 n tCO e 2 iii. The context for any significant changes in emissions that triggered recalculations of base year emissions Oil & Gas Not Applicable e. Source of the emission factors and the global warming potential (GWP) rates used, or a reference to the GWP source Oil & Gas 2023 : Source of emissions factors: API Compendium 2009 Indonesia: GHG Emissions Factor of Electricity System Year 2021, Directorate General of Electricity, Ministry of Energy and Mineral Resources of the Republic of Indonesia Oman: The International Financial Institution (IFI) Dataset of Default Grid Factors v.3.0, United Nations Framework Convention on Climate Change (UNFCCC) Thailand: CO 2 Emissions per kilowatt-hour (kWh), Energy Policy and Planning Office, Ministry of Energy of the Kingdom of Thailand Singapore: Electricity Grid Emission Factor and Upstream Fugitive Methane Emission Factor, Energy Market Authority of the Republic of Singapore Individual Disclosure Items Type of Entity 2023 2024 2025 2024-2025 : Source of emissions factors: API Compendium 2009 IPCC Guidelines for National Greenhouse Gas Inventories - Volume 2 2006 Indonesia: GHG Emissions Factor of Electricity System Year 2021, Directorate General of Electricity, Ministry of Energy and Mineral Resources of the Republic of Indonesia Oman: The IFI Dataset of Default Grid Factors v.3.0, United Nations Framework Convention on Climate Change (UNFCCC) Thailand: CO 2 Emissions per kWh, Energy Policy and Planning Office, Ministry of Energy of the Kingdom of Thailand Singapore: Electricity Grid Emission Factor and Upstream Fugitive Methane Emission Factor, Energy Market Authority of the Republic of Singapore Scope 2 market-based emissions of South Sumatra Block, Lematang and Bangkanai are calculated using the emission factor from Renewable Energy Certificates (RECs) Source of GWP rates: IPCC Fourth Assessment Report f. Consolidation approach for emissions Oil & Gas Operational Control g. Standards, methodologies, assumptions, and/or calculation tools used Oil & Gas 2023-2024 : API Compendium 2009 The GHG Protocol for Corporate Accounting and Reporting Standard from WBCSD and WRI 2004 ISO 14064-1:2006 regarding specification with guidance at the organisation level for quantification and reporting of greenhouse gas emissions and removals GHG Protocol Scope 2 Guidance, an amendment to the GHG Protocol Corporate Accounting and Reporting Standard, published by WBCSD and WRI, 2015 2025 : API Compendium 2009 The GHG Protocol for Corporate Accounting and Reporting Standard from WBCSD and WRI 2004 ISO 14064-1:2018 regarding specification with guidance at the organisation level for quantification and reporting of greenhouse gas emissions and removals GHG Protocol Scope 2 Guidance, an amendment to the GHG Protocol Corporate Accounting and Reporting Standard, published by WBCSD and WRI, 2015 Pursuing Driving a Advancing Our Creating Strengthening PT Medco Energi Internasional Tbk Our Approach to Excellence in Sustainable Future Health and Safety Opportunities for Our People and Digital 2025 GRI Performance Data Sustainability Governance through Climate Action Culture Communities Transformation Value. Focus. Growth. ‌14 Individual Disclosure Items Type of Entity 2023 2024 2025 GRI 305-3: Other indirect (Scope 3) GHG emissions a. Gross other indirect (Scope 3) GHG emissions in metric tons of CO 2 equivalent Gross other indirect (Scope 3) GHG emissions in metric tons of CO 2 equivalent Oil & Gas Not Applicable 24,971,600.20 r,s 23,070,187.16 r,s,u i. Scope 3 Category 3: Fuel and energy related activities (not included in Scope 1 or Scope 2) Oil & Gas 50,447.12 r,t 50,804.25 r,t,v ii. Scope 3 Category 10: Processing of sold product Oil & Gas 1,841,562.30 r 1,886,165.10 r,w iii. Scope 3 Category 11: Use of sold product Oil & Gas 23,079,590.78 r 21,133,217.80 r,x b. If available, the gases included in the calculation; whether CO 2 , CH 4 , N 2 O, HFCs, PFCs, SF 6 , NF 3 , or all Oil & Gas Not Applicable CO 2 , CH 4 , N 2 O c. Other indirect (Scope 3) GHG emissions categories and activities included in the calculation Oil & Gas 2023: Not Applicable 2024-2025: Categories Included: Category 3 (Fuel- and Energy-Related Activities Not Included in Scope 1 or Scope 2) Category 10 (Processing of Sold Product) Category 11 (Use of Sold Product) d. Source of the emission factors and the global warming potential (GWP) rates used, or a reference to the GWP source Oil & Gas 2023 : Not Applicable 2024-2025: Source of emissions factors: Internal calculation with reference to GHG Protocol for Corporate Value Chain (Scope 3) Accounting and Reporting Standard from WBCSD & WRI (2011), GHG Protocol for Technical Guidance for Calculating Scope 3 Emissions (Version 1.0) from WBCSD & WRI (2013), and Intergovernmental Panel on Climate Change (IPCC) Guidelines for National Greenhouse Gas Inventories - Volume 2 2006 UK Government GHG Conversion Factors for Company Reporting from Department for Business, Energy & Industrial Strategy and Department for Environment Food & Rural Affairs, 2022 Individual Disclosure Items Type of Entity 2023 2024 2025 UK Government GHG Conversion Factors for Company Reporting from Department for Business, Energy & Industrial Strategy and Department for Environment Food & Rural Affairs, 2021 UK Government GHG Conversion Factors for Company Reporting from Department for Business, Energy & Industrial Strategy and Department for Environment Food & Rural Affairs, 2017 Emissions from Oil and Gas Operations in Net Zero Transitions from International Energy Agency (IEA), 2023 Intergovernmental Panel on Climate Change (IPCC) Guidelines for National Greenhouse Gas Inventories - Volume 4 2006 Emission intensity from downstream value chain companies Source of GWP rates: IPCC Fourth Assessment Report e. Standards, methodologies, assumptions, and/or calculation tools used Oil & Gas 2023 : Not Applicable 2024 : The GHG Protocol for Corporate Accounting and Reporting Standard from WBCSD and WRI, 2004 The GHG Protocol for Corporate Value Chain (Scope 3) Accounting and Reporting Standard from WBCSD and WRI, 2011 The GHG Protocol for Technical Guidance for Calculating Scope 3 Emissions (Version 1.0) from WBCSD and WRI, 2013 Estimating Petroleum Industry Value Chain (Scope 3) Greenhouse Gas Emissions from Ipieca and API, 2016 American Petroleum Institute (API) Compendium 2009 GHG Emissions related to category 10 and 11 are calculated based on product sold and considering an estimated destination of use, based on buyer's information, buyer's publication and literature data (World Oil Final Consumption per Product from IEA, 2022) 2025 : The GHG Protocol for Corporate Accounting and Reporting Standard from WBCSD and WRI, 2004 The GHG Protocol for Corporate Value Chain (Scope 3) Accounting and Reporting Standard from WBCSD and WRI, 2011 The GHG Protocol for Technical Guidance for Calculating Scope 3 Emissions (Version 1.0) from WBCSD and WRI, 2013 Estimating Petroleum Industry Value Chain (Scope 3) Greenhouse Gas Emissions from Ipieca and API, 2016 American Petroleum Institute (API) Compendium 2009 GHG Emissions related to category 10 and 11 are calculated based on product sold and considering an estimated destination of use, based on buyer's information, buyer's publication and literature data (World Oil Final Consumption per Product from IEA, 2023) Pursuing Driving a Advancing Our Creating Strengthening PT Medco Energi Internasional Tbk Our Approach to Excellence in Sustainable Future Health and Safety Opportunities for Our People and Digital 2025 GRI Performance Data Sustainability Governance through Climate Action Culture Communities Transformation Value. Focus. Growth. ‌15 Individual Disclosure Items Type of Entity 2023 2024 2025 GRI 305-4: GHG emissions intensity a. GHG emissions intensity ratio for the organization i. Scope 1 Oil & Gas 314.49 a 297.76 b 314.22 b,c,z JOB Tomori 1 71.13 70.01 69.57 ii. Scope 1 + Scope 2 Oil & Gas 316.45 a,k 302.57 b,l,m 320.29 b,c,l,m,o,q,y,z b. Organization-specific metric (the denominator) chosen to calculate the ratio Oil & Gas tCO 2 e/1000 TOE HC product (tonnes of carbon dioxide equivalent per 1,000 Tonnes of Oil Equivalent of Hydrocarbon product) c. Types of GHG emissions included in the intensity ratio; whether Direct (Scope 1), energy indirect (Scope 2), and/or other indirect (Scope 3) Oil & Gas Direct (Scope 1) GHG emission sources Direct (Scope 1) + Energy indirect (Scope 2) GHG emission sources d. Gases included in the calculation; whether CO 2 , CH 4 , N 2 O, HFCs, PFCs, SF 6 , NF 3 , or all Oil & Gas CO 2 , CH 4 , N 2 O, HFCs GRI 305-7: Nitrogen oxides (NO x ), sulfur oxides (SO x ), and other significant air emissions a. Significant air emissions, in tonnes, for each of the following: i. NO x (tonne/year); Oil & Gas 5,958.34 a 5,652.53 b 5,433.40 b,aa ii. SO x (tonne/year); Oil & Gas 698.37 a 598.22 b 428.77 b,ab iii. Persistent organic pollutants (POP); Oil & Gas Not Applicable iv. Volatile organic compounds (VOC, tonne/year); Oil & Gas 1,289.48 a 1,214.47 b 1,268.91 b,ac v. Hazardous air pollutants (HAP); Oil & Gas Not Applicable vi. Particulate matter (PM, tonne/ year); Oil & Gas 261.50 a 247.13 b 229.60 b,ad vii. Other standard categories of air emissions identified in relevant regulations Oil & Gas Not Available b. Source of the emissions factors used Oil & Gas Internal calculation with reference to American Petroleum Institute (API) Compendium 2009 and United States Environmental Protection Agency Air Pollutant-42 (US EPA AP-42). Individual Disclosure Items Type of Entity 2023 2024 2025 c. Standards, methodologies, assumptions, and/or calculation tools used Oil & Gas 2023-2024 : API Compendium 2009 US EPA AP-42 The GHG Protocol for Corporate Accounting and Reporting Standard from WBCSD and WRI 2004 ISO 14064-1:2006 regarding specification with guidance at the organisation level for quantification and reporting of greenhouse gas emissions and removals Minister of Environment of the Republic of Indonesia Regulation Number 12 Year 2012 regarding Guidelines for Calculation of Emissions for Oil and Gas Industry Activities 2025 : API Compendium 2009 US EPA AP-42 The GHG Protocol for Corporate Accounting and Reporting Standard from WBCSD and WRI 2004 ISO 14064-1:2018 regarding specification with guidance at the organisation level for quantification and reporting of greenhouse gas emissions and removals Minister of Environment of the Republic of Indonesia Regulation Number 12 Year 2012 regarding Guidelines for Calculation of Emissions for Oil and Gas Industry Activities 1 Joint Operating Body Pertamina - Medco E&P Tomori Sulawesi (JOB Tomori) is a non-operating asset, therefore the numbers reflect 30% MedcoEnergi's working interest and these numbers are not assured by KAP PSS - EY. Pursuing Driving a Advancing Our Creating Strengthening PT Medco Energi Internasional Tbk Our Approach to Excellence in Sustainable Future Health and Safety Opportunities for Our People and Digital 2025 GRI Performance Data Sustainability Governance through Climate Action Culture Communities Transformation Value. Focus. Growth. ‌16 Additional remarks for GRI 305: Emissions - Oil & Gas GRI Asterisk Remarks Statement from MedcoEnergi GRI 305-1, 305-4, and 305-7 a Scope of assets The list of assets that calculate GHG Scope 1 Emissions in 2023 - International : Oman KSF and Thailand; Domestic : Rimau, South Sumatra Block, Lematang, Bangkanai, Tarakan, Block A, South Natuna Sea Block B, Sampang, Madura Offshore, Corridor and Jakarta Office. b Scope of assets The list of assets that calculate GHG Scope 1 Emissions in 2024-2025 - International : Oman KSF and Thailand; Domestic : Rimau, South Sumatra Block, Lematang, Bangkanai, Tarakan, Block A, Palembang Office, Banda Aceh Office,South Natuna Sea Block B, Sampang, Madura Offshore, Corridor and Jakarta Office. c Justification for the increase in GHG Scope 1 emissions Higher gas flaring in South Natuna Sea Block B. d Justification for decrease in GHG Scope 1 combustion emissions Lower mostly attributed to implementation of fuel optimization projects and natural production decline from several assets. e Justification for the increase in GHG Scope 1 flaring emissions Higher gas flaring in South Natuna Sea Block B. f Justification for the decrease in GHG Scope 1 venting emissions Lower primarily attributed to natural production decline from several assets. g Justification for the decrease in GHG Scope 1 process emissions Lower primarily attributed to natural production decline in South Sumatra Block. h Justification for the increase in GHG Scope 1 fugitive emissions Higher emission from refrigerant in South Natuna Sea Block B. i Justification for the increase in methane emissions Higher gas flaring in South Natuna Sea Block B. j Justification for the decrease in biogenic CO 2 emissions Lower biodiesel fuel consumption mainly driven by less drilling activities in Madura Offshore. GRI 305-2 and GRI 305-4 k List of assets The list of assets in 2023 that consume energy from purchased electricity consist of Palembang Office, Bangkanai, South Sumatra Block, Tarakan, South Natuna Sea Block B, Sampang, Thailand, Oman KSF, Singapore Office, Jakarta Office, and Corridor. l List of assets The list of assets in 2024-2025 that consume energy from purchased electricity consist of Rimau, South Sumatra Block, Lematang, Tarakan, Block A, Bangkanai, Palembang Office, Banda Aceh Office, South Natuna Sea Block B, Sampang, Thailand, Oman KSF, Singapore Office, Jakarta Office, and Corridor. m List of assets Starting from 2024, the asset that consume energy from purchased steam is Oman KSF. n GHG Scope 2 base year emission accounting approach Figure is accounted for location-based and market-based. o Justification for the increase in location-based GHG Scope 2 emission Higher purchased steam consumption for steam flood operation in Oman KSF. p Disclosure of market-based GHG Scope 2 emissions In 2023: Rawa and Ramba (Corridor) use emission factor derived from API Compendium 2009 for both location-based and market-based method. Market-based emission number using the same approach as the location-based emissions, as no RECs have been procured and no government-published residual mix emission factors are currently available. q Disclosure of market-based GHG Scope 2 emissions In 2024-2025: MedcoEnergi purchased Renewable Energy Certificates (RECs) for Bangkanai, South Sumatra Block and Lematang. Rawa and Ramba (Corridor) use emission factor derived from API Compendium 2009 for both location-based and market-based method. Assets that did not purchase RECs are Rimau, Tarakan, Block A, Palembang Office, Banda Aceh Office, South Natuna Sea Block B, Sampang, Thailand, Oman KSF, Singapore Office and Jakarta Office which use its respective location-based emission factor due to unavailability of residual mix emission factor published by the government. Oman KSF's purchased steam uses emission factor derived from stationary combustion approach based on IPCC v.2 2006 for both location-based and market-based method. Pursuing Driving a Advancing Our Creating Strengthening PT Medco Energi Internasional Tbk Our Approach to Excellence in Sustainable Future Health and Safety Opportunities for Our People and Digital 2025 GRI Performance Data Sustainability Governance through Climate Action Culture Communities Transformation Value. Focus. Growth. 17 GRI Asterisk Remarks Statement from MedcoEnergi GRI 305-3 r Consolidation approach for emissions Operational Control. s List of Assets The list of assets that calculate GHG Scope 3 Emissions starting in 2024 - International : Oman KSF, Thailand and Singapore Office; Domestic : Rimau, South Sumatra Block, Lematang, Bangkanai, Tarakan, Block A, Palembang Office, Banda Aceh Office, South Natuna Sea Block B, Sampang, Madura Offshore, Corridor and Jakarta Office. Oman KSF is not included in Category 10 & 11 calculation due to the production belonging to Petroleum Development Oman (PDO). t Calculation approach of GHG Scope 3 Category 3 GHG Scope 3 Category 3 includes well-to-tank emission for purchased fuel, electricity, steam, and the transmission and distribution losses of purchased electricity. GHG Scope 3 Category 3 from purchased electricity including transmission and distribution losses are calculated using location-based method. GHG Scope 3 Category 3 from purchased steam is calculated using location-based method. The calculation does not include transmission and distribution losses due to on-site steam generated by a third-party company. u Justification for the decrease in Scope 3 emmisions Lower gas sales mainly due to natural production decline from several asset. v Justification for the increase in Scope 3 (Category 3) emissions Higher purchased electricity mostly attributed to full year implementation of power conversion to national grid in Lematang and higher purchased steam consumption for steam flood operation in Oman KSF. w Justification for the increase in Scope 3 (Category 10) emissions Higher oil lifting mostly due to higher oil production mainly from South Natuna Sea Block B. x Justification for the decrease in Scope 3 (Category 11) emissions Lower gas sales mainly due to natural production decline from several asset. GRI 305-4 y Calculation approach of GHG Scope 1+2 Intensity Total Scope 1 + 2 emission intensity metrics calculated using scope 2 market-based method. z Justification for the increase in GHG Intensity Scope 1 and Scope 1+2 Higher GHG intensity primarily due to lower production in several assets as a result of natural production decline. GRI 305-7 aa Justification for the decrease in NO x emission Lower fuel gas consumption mainly driven by implementation of GHG emission reduction projects and power conversion to national grid in Lematang. ab Justification for the decrease in SO x emission Lower H 2 S composition in acid gas burned in Suban (Corridor). ac Justification for the increase in VOC emission Higher fugitive emissions align with higher production in South Natuna Sea Block B. ad Justification for the decrease PM emission Lower drilling fuel consumption in Corridor. Pursuing Driving a Advancing Our Creating Strengthening PT Medco Energi Internasional Tbk Our Approach to Excellence in Sustainable Future Health and Safety Opportunities for Our People and Digital 2025 GRI Performance Data Sustainability Governance through Climate Action Culture Communities Transformation Value. Focus. Growth. ‌18 Individual Disclosure Items 2023 2024 2025 GRI 302-1: Energy consumption within the organization a. Total fuel consumption within the organization from non-renewable sources, in gigajoules, and including fuel types used 25,226,144.25 a 24,567,004.39 a 26,603,346.61 b,c Gasoline Diesel Natural gas b. Total fuel consumption within the organization from renewable sources, in gigajoules, and including fuel types used 570.08 a 434.40 a 3,522.52 b,d Biodiesel (B30) Biodiesel (B35) Solar energy Biodiesel (B35) Solar energy Biodiesel (B40) Solar Energy Hydropower c. In gigajoules, the total: i. Electricity consumption; 6,070.45 a 6,674.70 a 17,550.86 b,e ii. Heating consumption; - - - iii. Cooling consumption; - - - iv. Steam consumption - - - d. In gigajoules, the total: i. Electricity sold; 10,132,680.47 a 10,005,930.07 a 12,270,750.05 b ii. Heating sold; - - - iii. Cooling sold; - - - iv. Steam sold - - - e. Total energy consumption within the organization, in gigajoules 15,100,104.31 a 14,568,183.42 a 15,668,893.59 b,f f. Standards, methodologies, assumptions, and/or calculation tools used 2023-2024 : The GHG Protocol for Corporate Accounting and Reporting Standard from WBCSD and WRI 2004 ISO 14064-1:2006 regarding specification with guidance at the organisation level for quantification and reporting of greenhouse gas emissions and removals 2025 : The GHG Protocol for Corporate Accounting and Reporting Standard from WBCSD and WRI 2004 ISO 14064-1:2018 regarding specification with guidance at the organisation level for quantification and reporting of greenhouse gas emissions and removals g. Source of the conversion factors used Intergovernmental Panel on Climate Change (IPCC) Guidelines for National Greenhouse Gas Inventories - Volume 2 2006 GRI 302: Energy 2016 - Power Individual Disclosure Items 2023 2024 2025 GRI 302-3: Energy intensity a. Energy intensity ratio for the organization 5.36 a 5.23 a 4.72 b b. Organization-specific metric (the denominator) chosen to calculate the ratio GJ/MWh (Gigajoules per MegaWatt Hour) c. Types of energy included in the intensity ratio; whether fuel, electricity, heating, cooling, steam, or all Fuel (renewable and non-renewable) and electricity d. Whether the ratio uses energy consumption within the organization, outside of it, or both Within the organisation Additional remarks for GRI 302: Energy - Power GRI Asterisk Remarks Statement from MedcoEnergi GRI 302-1 and 302-3 a List of assets The list of assets in 2023 - 2024 - ELB, EPE, MPE, MEB, DEB, MRPR, Cibalapulang Mini-hydro, Pusaka Mini-hydro and MPI Headquarters. b List of assets The list of assets in 2025 -ELB, EPE, MPE, MEB, DEB, MRPR, Cibalapulang Mini-hydro, Pusaka Mini-hydro, East Bali Solar PV (limited to operational vehicles, as other emission sources are not yet under it's operational control), Ijen Geothermal (Ijen) and MPI Headquarters. c Justification for the increase in non-re-newable energy consumption within the organisation in 2025 The increase of non-renewable energy consumption is mainly due to increasing amount of electricity production and natural gas consumption. d Justification for the increase in renewable energy consumption within the organisation in 2025 The increase in renewable energy consumption is mainly driven by higher internal use of self-generated electricity from hydropower plants in Cibalapulang Mini-hydro and Pusaka Mini-hydro. e Justification for the increase in electricity consumption within the organisation in 2025 The increase of electricity consumption is mainly due to higher imported electricity at MRPR associated with increased engine outages. f Justification for the increase in energy consumption within the organisation in 2025 The increase of energy consumption is mainly due to increasing amount of electricity production and natural gas consumption.

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