PTTEP Energy Project Overview

Projects Details | Myanmar, Malaysia, Other SEA (as of September 2022) 1 Project Name Status Phase Participating Interest* (%) Sales Vol Gas (MMSCFD) Sales Vol Liquid (KBPD) Malaysia Block K - Kikeh - Siakap-North Petai field (SNP) OP (Kikeh & SNP) Production PTTEP Kikeh 56% JV (GK) 26 ** 30 ** SNP GK 22.4% 7.17% - - Gumusut-Kakap field (GK) 2 Malaysia SK309 and SK311 OP Production PTTEP 42-59.5% 200 ** 18* 3 Malaysia Block H OP Production PTTEP 42-56% 260 ** 4 Malaysia - Other projects OP Exploration PTTEP 42.5 - 80% (varied by permits) 5 Yadana (Myanmar) JV Production 737 PTTEPI 37.1% Chevron MOGE 41.1% 21.8% 6 Zawtika: M9 & a part of M11 (Myanmar) OP Production 310 PTTEP Myanma Oil and Gas Enterprise (MOGE) 80% 20% Note: * PTTEP denotes respective PTTEP subsidiaries participating in the project Sales volume represent average volume for 100% of the project during 9M2022 except Malaysia (Production volume 100%) / For Block K, gross production is net off unitization Status: OP = PTTEP operatorship/JOC = PTTEP joint operatorship/ JV = PTTEP Joint Venture Partner 38 38 . . • Latest Status The inspection and maintenance were completed as planned Completed drilling wells in GK as part of field development Prepare for drilling in Kikeh in Q4/2022 PTTEP In the process drilling of 4 new infill wells on West Patricia Ensure gas delivery at DCQ Preparing for exploration wells drilling in early 2023 SK410B: Additional drilling completed in Sep 2022 and under result evaluation. For LLB, expect FID 2023. SK417 Planning and preparing for the drilling of appraisal well SK405B Sirung Pre-Development Study is ongoing SK438 Well planning in progress : SK314A Drilling preparation SB412 Preparing for exploration activities and focusing on seismic activity Operatorship transfer completed in July 2022 as planned On the development process of Phase 1D to maintain production level In the process of additional wellhead platform construction Reparation of onshore pipeline leakage was completed, caused 2-week interruption on gas imported to Thailand

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