Annual Business Update and ESG Report

Projects Details | Middle East PTTEP Project Name Status Phase Participating Interest* (%) Sales Vol Gas Sales Vol Liquid Latest Status (MMSCFD) (KBPD) 1 Abu Dhabi Offshore 1 JV Exploration PTTEP 30% [UAE] Eni Abu Dhabi 70% 2 Abu Dhabi Offshore 2 [UAE] JV Exploration PTTEP 30% Being evaluated for petroleum potential to support future exploration, including G&G report Continued drilling the first exploration well Eni Abu Dhabi 70% 3 Abu Dhabi Offshore 3 [UAE] JV Exploration I PTTEP 30% G&G study is on-going Eni Abu Dhabi 70% 4 Sharjah Onshore Area C JV Exploration PTTEP 25% [UAE] Eni Abu Dhabi 50% Completed the acquisition of 25% interest on 1 March 2022 Seismic activity is in progress SNOC 25% 5 PDO Block 6 [Oman] JOC Production 660 ** PTTEP 2% Normal operations Government of Oman 60% Shell 34% TotalEnergies 4% 6 Mukhaizna [Oman] JV Production 94 ** PTTEP 1% Normal operations Occidental 47% OOCEP 20% Indian Oil 17% Mubadala 15% Note: * PTTEP denotes respective PTTEP subsidiaries participating in the project Sales volume represent average volume for 100% of the project during Q1/2022 except for PDO Block 6 and Mukhaizna (Production volume 100%) Status: OP = PTTEP operatorship / JOC = PTTEP joint operatorship/ JV = PTTEP Joint Venture Partner 40

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