Annual Business Update and ESG Report

Projects | Vietnam and Indonesia Production projects Pre sanction projects VIETNAM INDONESIA Vietnam VIỆT NAM PTTEP Vietnam 16–1 (28.5% WI) Average sales volume of crude oil was 13 KBPD in 3M2022 • In 2022, the project has plan to drill 2 development wells in Q3 Q4/2022. Southwest Vietnam Vietnam B & 48/95 (8.5% WI) Vietnam 52/97 (7% WI) • Field Development Plan was approved by Government • The project is currently in the negotiation process on commercial terms to put forward FID, with production capacity approximately 490 MMSCFD Indonesia Natuna Sea A (11.5% WI) Average sales volume of natural gas was 199 MMSCFD in 3M2022 32 32

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