Investor Update April 2022

Natural Gas Balance: Jan - Dec 2021 Main driver of the Thai economy Supply Gulf of Thailand (62%) Production Sales Ethane/ Propane/ LPG/NGL Petrochemical Feedstock (12%) Others, 58% PTTEP, 42% 2,733 MMSCFD Gas Separation Plant ANAWAN 田田 Onshore (2%) 104 MMSCFD Import (36%) 1,583 MMSCFD Myanmar, 44% LNG, 56% 6 GSPs Total Capacity 2,870 MMSCFD @ Actual Heat Bypass Gas 322 MMSCFD Methane 1,502 MMSCFD Remark: MMSCFD = Million Cubic Feet @ Heating Value 1,000 Btu/ft³ 909 MMSCFD (20%) LPG/NGL Industry Household Transportation (8%) Power (59%) Industry (18%) NGV (3%) ptt 3

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