Investor Update April 2022

PTT Group Clean & Green Strategic Execution ES G 2012 Base year Continue execution in GHG reduction and initiate carbon price application to enable green investment Aim to achieve Carbon Neutrality By 2050, and Net Zero By 2065 (align with "National Energy Plan") 2018 2021 Optt Group 2030 GOAL Aim to reduce GHG emission ptt 15% from 2020 Group 2030 STRATEGIC DIRECTION to achieve GHG reduction and manage carbon intensity CO2 Scope 1+2 (Direct and Indirect Greenhouse Gas Emissions) Scope 3 (Other Indirect Greenhouse Gas Emission) Enabler Review and adjust price to ensure meeting GHG reduction target Apply Carbon Price in Investment Decision Process As Hidden Price in Feasibility Study 20 USD per ton CO₂e Process Optimization & Energy Efficiency (All facilities) CO2 Renewable Energy in Operations (All facilities) Biofuel/Low Carbon Product BIOFUEL (OR, GC, IRPC, TOP, INI) ptt ircular Economy CO₂ Utilization and Storage (PTTEP, PTT) Reforestation & Community GHG Project (CSR) Circular Economy (GC, IRPC) Renewable/New Energy Investment Financial & investment Mechanism R&D Partnership (PTT, GPSC) Carbon Neutral Framework Carbon Exchange Platform I Carbon Credit Offset Electric Mobility (PTT) 54

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