#1KKK PTTEP Investor Presentation TISCO Energy & Utilities Corporate Day 3 March 2023#2Cautionary Statement Forward-looking Information PTTEP The information, statements, forecasts and projections contained herein reflect the Company's current views with respect to future events and financial performance. These views are based on assumptions subject to various risks. No assurance is given that these future events will occur, or that the Company's assumptions are correct. Actual results may differ materially from those projected. Petroleum Reserves Information In this presentation, the Company discloses petroleum reserves that are not included in the Securities Exchange and Commission of Thailand (SEC) Annual Registration Statement Form 56- 1 under "Supplemental Information on Petroleum Exploration and Production Activities". The reserves data contained in this presentation reflects the Company's best estimates of its reserves. While the Company periodically obtains an independent audit of a portion of its proved reserves, no independent qualified reserves evaluator or auditor was involved in the preparation of reserves data disclosed in this presentation. Unless stated otherwise, reserves are stated at the Company's gross basis. This presentation may contain the terms "proved reserves" and "probable reserves". Unless stated otherwise, the Company adopts similar description as defined by the Society of Petroleum Engineers. Proved Reserves - Proved reserves are defined as those quantities of petroleum which, by analysis of geological and engineering data, can be estimated with reasonable certainty to be commercially recoverable, from a given date forward, from known reservoirs and under current economic conditions, operating methods, and government regulations. Probable Reserves - Probable reserves are defined as those unproved reserves which analysis of geological and engineering data suggests are more likely than not to be recoverable. 2#3KKK PTTEP Company Information#4PTTEP | E&P Flagship of PTT Group 3,969.9 Million shares ~17 PTT 64% Local 19% Institutions Foreign Institutions 14% Retails 3% As of latest book closing Feb 2023 90% Billion USD Of Sales Rev HPO High Performance Organization Governance, GRC Risk Management and Compliance SVC Sustainable Value Creation ~15 USD/BOE Sustainability Yearbook Member S&P Global ESG Score 2022 S&P Global Sustainable 1 Sustainability THSI THAILAND SUSTAINABILITY INVESTMENT 2022 2016-2022 FTSE4Good 2016-2022 Market Capitalization In SET Generated from SEA & ME Competitive Cash Cost 4 MSCI Level "AA" CDP DISCLOSURE INSIGHT ACTION Level "B" PTTEP#5PTTEP Overview | Diversified asset portfolio Oil Rest of the World • Small presence in Kazakstan's Dunga oil field • Small presence in Australia, Mexico for exploration blocks. Africa Oil Book Value of Assets by region Total USD 25.2 billion Growth opportunity • <1% of total sales volume • Key assets include oil fields in Algeria's Bir Sebah and Hassi Bir Rakaiz projects • Large LNG project in Mozambique under development phase • Small presence in Angola oil field block 17/06 Others 2% Middle East 13% Africa 16% Thailand 45% Southeast Asia 24% As of December 2022 Oil 10 Oil Thailand Home Base • 63% of total sales volume • Mainly piped gas business • Key assets: G1/61 (Erawan), G2/61 (Bongkot), Contract 4, and Arthit offshore in the Gulf of Thailand and S1 onshore oil field. Piped Gas Oil Gas/LNG Gas/LNG Middle East Strategic Locations • 15% of total sales volume • Focus Oman and UAE Key assets: Oman Block 61, PDO Block 6, and other exploration blocks and UAE 3 offshore and 2 onshore exploration blocks LO 5 PTTEP Southeast Asia Strategic Locations • 21% of total sales volume mainly from Malaysia and Myanmar with small presence in Vietnam and Indonesia • Production of gas and crude oil • Key assets include Zawtika, Yadana in offshore Myanmar, and SK309/SK311, Block K, Block H in offshore Malaysia.#6PTTEP | Strategy for Sustainable Growth 1 DRIVE VALUE Strengthen E&P and ensure Thailand energy security ☐ Maximize production ☐ ■ Expedite development Monetize discovery Enhance competitiveness of unit cost Expand gas-weighted portfolio and LNG business 2 DECARBONIZE ○ Manage E&P for lower carbon portfolio ○ Execute GHG emission reduction plan ○ Accelerate CCS projects Maximize use of renewable and future energy in operation ○ Pursue emission offsetting and Ocean for life 3 DIVERSIFY Scale-up Al & Robotic Ventures (ARV) ○ Capture gas-to-power and renewable energy opportunity Explore CCUS, H2 and future energy Commercialize in-house technology PTTEP#7KKK PTTEP Business Update#8Highlights 2022 & PTTEP's vital role in Energy Security PTTEP Projects Transition O TH: G1/61, G2/61 • MM: Yadana Operating Performance • New volume from G1/61 • Arthit increase DCQ • Oman B61 full-year volume, 1st Oil HBR New Assets & Discoveries • UAE: Sharjah Area A, Offshore 2 • MY: SK410B, SB412 NET ZER Net Zero 2050 GHG Reduction, Arthit CCS Beyond E&P ARV, Power, CCUS, Future Energy 8 Portfolio Rationalization: Clean exit from Brazil and Angola#9Social & Environmental Contribution in 2022 Govt. Revenues GHG Reduction CO Social & Environment PTTEP 62,000 Million THB paid to • TH Government in form of Income tax Royalties Production bonus Other remunerations 166,352 tCO2e emission reduction in 2022 from company's operations Flare Gas/Flash Gas Recovery Heat Recovery Steam Generator Logistic Fleet Management CO2 Membrane Replacement & Optimization 30.4% achievement against Net Positive Impact on Ocean Biodiversity Ecosystem Services value 20.5% achievement against 50% increase of income of focused communities Ocean Health and Biodiversity Monitoring (Ocean Data Platform) Ramp Up CSR around Ocean Donations and Sponsorships 9#10Key Focus Areas 2023 Strategic alignment with UNSD Goals Drive Value . Max. Production & Energy Security G1/61 Ramp-up and GOT Synergy • SK410B LLB FID · MY Discovery Monetization . Competitive Unit Cost Decarbonize • EP Net Zero 2050 . Arthit CCS FID · GOT CCS Hub Study Emission Offsetting & Ocean for Life CO 10 10 SUSTAINABLE DEVELOPMENT GOALS PTTEP Diversify • Scale-up Al & Robotics Venture • Power and Renewable Opportunity Explore CCUS Future Energy 23454 12#11Business Update | E&P Ө THAILAND G1/61 Erawan Currently producing at 210 MMSCFD. In 2022, drilled additional 77 wells and installed 8 WHPs. 1st ramp-up to 400 MMSCFD target mid 2023. G2/61 Bongkot Currently producing at 200 MMSCFD. Preparing for remaining transition Block B16 and B17 in Mar-23 to PSC. MTJDA Granted additional exploration area and PSC extension to 2039. Currently supplying 33 MMSCFD to Thailand. Participating in 24th Gulf of Thailand Bid Round Seeking progress in OCA MALAYSIA SB412 New block awarded from MBR 2021 - Started seismic processing. SK410B LLB FEED in progress. Estimated production rate ~1000 MMSCFD. FID plan in 2023. Additional discovery in the area from Paprika-1 well. MYANMAR Yadana Operate normally. Possibility to extend PSC beyond 2028. Zawtika Operate normally. Maintain production with new phase 1D. I 11 PTTEP UAE e Sharjah Onshore Area A and C acquired 25% stake Offshore 1 and 3 currently being evaluated for petroleum potential Offshore 2 made sizable gas discovery approx. 2.5-3.5 TCF ALGERIA HBR 1st Oil production commenced with daily production ~13 KBPD. O MOZAMBIQUE MZA1 Site re-access pending security situation. 1st Cargo is estimated in 2027. BRAZIL/ANGOLA Portfolio Rationalization Divestment from Brazil and Angola#12Business Update | Beyond E&P Gas To Power The project is currently on the preparation process. Timeline is delay due to local situation in Myanmar. CARIVA Green e-methanol MoU with 5 multinational companies on a 'Green Methanol Value Chain Collaboration' which will explore the feasibility of establishing a green e-methanol pilot plant. Δ AI AND Received "The National Innovation Awards" from Thailand's National Innovation Agency (NIA). ROBOTICS • MOU with AEROTHAI to develop and test data connectivity between VENTURES ARV's unmanned aircraft systems, flight-operations and fleet- management systems and AEROTHAI's UAS traffic management system ROVULA SKYLLER ⚫ ZEAQUEST delivered subsea pipeline maintenance and exploration projects in the Gulf of Thailand and the Gulf of Martaban. • The NAUTILUS technology is now ready for commercial services and was awarded "The Spotlight on New Technology" award from OTC Asia 2022 in Malaysia. • Signed an agreement with HMC Polymers for the inspection of flares and confined spaces (silo) for plastic pellets, using UAV technology and digital platforms • Created and developed Digital Twin technology MoU with Thammasat University Hospital to provide CARIVA's digital health screening tools and digital data collection solution. Successfully developed and deployed National Digital Corporate Identity (NCID) solution, which leverages innovations in Digital-ID and e-documents พิธีลงนามบันทึกควา ลงร่วมบิด วันน งชาติ ประจําปี 2565 www.donssul bind Bridging Identity, Network and Data varuna • Cooperated with PTT in research and development of carbon stock assessment technologies for the forestry sector • Aims to collect 1 million tons of carbon credits by 2030. MoU with more than 10 agencies to accelerate the development and dissemination of City Data Digital Platform and lead to integration of city data analytics into the forecasting, planning, monitoring, and problem solving of the cities CCS for PTT Group's GHG Reduction MoU with PTT Group companies to conduct a feasibility study on the application of CCS under the concept of CCS Hub Model. → bedrock CCS as a Service PTTEP Renewable Energy Electrolysis to H Biogenic CO₂ Methanol Synthesis to E-Methanol CH,OH Marine Transportation PTTEP GC Gesc Northern powerplant Central Industria Collaborates with INPEX and JGC to explore Complex the potential development of a CCS project in Thailand 12 B MED Eastern Southern Industrial powerplants Complex Selected CO2 sources#13Business Update | SD & ESG EP Net Zero 2050 Announced Zero GHG Emission Target or EP Net Zero in year 2050 Q4/2022 Highlights Collaboration PTTEP Ocean Data Platform (Launched in October) CLEAN & FRIENDLY OPERATION gudouinwuchnia noorwo Renovated Sea Turtle Exhibition and Hatchery Building for the Royal Thai Navy Sea Turtle Conservation Center, Sattahip Awards LCSB ง ตลับ รบกวนระบบและ กระ การ 80610 12.00 Outstanding award under LCSI project of 2022 from TGO PITEP uan dan ahsouens die sunhou PTT Expo Puchon Fic Congiory Limited E2050 PTTEP WEasunudurinioanaanonusiouto insalderamal wwwwwandelsu uoreneaners msrends PTTEP นามบันทึกข้อตกลงความร่วมมือ Participated in ADIPEC 2022, UAE. PTTEP exhibits the decarbonization technologies that will support the company and Thailand to achieve net-zero GHG emissions. MOU with Department of Fisheries and 3 partners for implementation of a project on the use of petroleum platform jackets as artificial habitat (reefs) for sustainable fisheries in the GoT MOU with Mae Fah Luang Foundation and ARV to collaborate on preserving and restoring natural resources to increase forest density and increase CO2 absorption rate of community forests. SET AWARDS 207 3 SET Awards 2022 Sustainability Awards of Honor Best Investor Relations Awards Best Innovative Company Awards INTERNAT GREEN INTERNATIONAL GREEN APPLE CSR World Leader 2022 The Green Organization for the H.T.M.S. Underwater Learning Site Project Global MIKE Award 2022 Gold Level of Most Innovative Knowledge Enterprise Award 13 SCAN ME PTTEP OCEAN DATA PLATFORM OCEAN HEALTH & BIODIVERSITY MONITORING RAMP UP CSR AROUND OCEAN PTTEP Guardian of the Ocean Example: Meteorological & Oceanographic Data (MET-OCEAN) PSB Songkhla O O Koh Mannai Greater Bongkot OUT North M 1000 Arthit Greater Bongkot Parameters • Air & Seawater Temperature (°C) • Humidity (%) Atmospheric pressure (Pa) • Wind Speed (m/s) • Wind Direction (360°) Turbidity (NTV) • Dissolved Oxygen (mg/l) • Salinity (psu) • Transparency (m.)#14KKK PTTEP Financial Results#15Financial Results | Q4/22 and FY2022 QoQ 664 YOY YTD PTTEP Unit: million USD 1,999 Net Profit P/L from normal operation 417 417 321 1,211 P/L from non-operating items 706 723 723 2,647 513 1,479 Profit from Normal Operations Sales Volume -42 -192 -268 -306 -306 -648 Q3/22 Q4/22 Q4/21 Q4/22 2021 2022 +5% +19% +12% Algeria HBR 1st sale, Bongkot G1/61, Oman Block 61, Arthit G1/61, Oman Block 61, Arthit +23% -2% Average Selling Price Higher gas price offset with lower liquid price Unit Cost +2% Major Non-operating items (in million USD) Q3/22 Q4/22 Oil Price Hedging +94 -2 Impairment Asset Write-off -95 -205 Brazil Others Moz. / Angola -58 Montara/Oman B61 15 +13% Higher gas and liquid price -1% Higher gas and liquid price -1% Q4/21 Q4/22 +5 -2 2021 2022 -284 -186 -328 -300 -183 Moz./ Yetagun -205 Moz. / Angola -58 Montara/Oman B61 Moz./ Brazil / Yetagun Moz./ Brazil / Angola +342 Bargain Purchase of Oman B61 -58 Montara/Oman B61#16Financial Results | Volume and Price UNIT: BOED 500,456 Volume Mix 400,000 468,130 478,323 78,318 416,141 74,053 75,191 420,965 Gas Liquid Rest of World 55,993 67,360 300,000 97,987 98,715 101,076 27% 28% 95,766 Other SEA 97,980 200,000 73% 72% Thailand & 324,151 295,362 302,056 MTJDA 100,000 264,382 255,625 Q3 2022 Q4 2022 Product Price 2021 2022 Q3 22 Q4 22 Q4 21 Revenue Mix Gas ($/MMBTU) 5.69 6.27 6.18 6.70 5.81 Liquid ($/BBL) 66.70 94.89 97.94 85.40 76.17 50% 46% Weighted Avg. ($/BOE) 43.49 53.39 53.68 52.76 46.87 Avg. Dubai ($/BBL) 69.39 96.38 96.68 84.77 78.27 50% 54% Avg. HSFO ($/BBL) 64.42 62.44 74.44 62.44 71.38 (High Sulphur Fuel Oil) Q3 2022 Q4 2022 Note: Include sales volume from ADNOC Gas Processing (AGP) Exclude Oman Block 61 deemed sales volume from tax payment by government 16 PTTEP#17Financial Results | Unit Cost Unit: $/BOE 40 28.52 28.36 ** 28.82 29.32 ** 29.51 30 Cash Cost Unit Cost 20 13.25 14.56 14.50 15.22 Х 15.66 X ✗ 10 2021 2022 Q3 22 Q4 22 Q4 21 DD&A 15.27 13.80 14.32 14.10 13.85 Finance Cost 1.33 1.37 1.42 1.21 1.31 Royalties 3.49 4.02 3.88 3.78 3.69 G&A 2.22 2.46 1.66 3.36 3.05 Exploration Expenses 0.54* 0.42 0.95 0.16 0.51 Operating Expenses 5.67 6.29 6.59 6.71 7.10 Lifting Cost 4.13 4.42 4.50 4.64 4.33 * Note: Exclude Exploration assets write-off in Brazil for 2021 ** Exclude Montara Class action settlement All Unit Cost shown above exclude costs related to new business The formulas for calculating ratios are provided in the supplementary section for your reference 17 PTTEP#18Financial Results | Cashflows & Financial Position Cashflow & Financial Position Cash flow from operations (Before tax) 6,270 2,559 Beginning cash (Dec-21) Unit: million USD Inflow Outflow Tax paid 1,611 CAPEX Debt Dividend repayment/ 1,892 paid issuance & Others 819 EBITDA Margin 75% 968 Note: Net of adjustment for the effect of exchange rate changes on cash and cash equivalents 3,539 Unit: million USD 23,445 25,168 Total Assets Other Liabilities 6,923 7,820 4,094 3,833 PTTEP Interest-bearing Debt Equity 12,428 13,515 Dec-21 Ending cash Dec-22 (Dec-22) Debt Profile 2021 2022 2021 2022 Debt to Equity 0.33 0.28 Average Cost of Debt 3.38% p.a. 3.99% p.a Debt to EBITDA 0.80 0.56 Average Loan Life 12.7 Yrs 15.2 Yrs 18 Interest Rates 100% Fixed rate#19Financial Results | Dividends Schedule for 2H2022 Dividend Payment 10.00 XD Date 14 February 2023 8.00 PTTEP Unit: THB per share 1H 2H 9.25 6.00 5.00 6.00 5.00 5.00 4.25 4.25 4.00 3.75 3.25 3.00 Record 2.75 2.75 15 February 2023 2.00 4.25 Date 2.25 1.50 1.75 2.00 1.50 0.00 2017 2018 2019 2020 2021 2022 Payment Payout Ratio 24 April 2023 % of Net Profit 88 55 49 77 Date 50 50 53 % of Profit from Normal Operation 63 51 53 53 71 41 40 40 19#20Guidance Sales Volume (KBOED) Outlook Q1 2023 FY 2023 ~472 ~470 Ratings Gas Price ~6.7 ~6.1 (US$/MMBTU) BBB+ Stable Unit Cost (US$/BOE) Profitability (EBITDA Margin) * Based on Dubai oil price in 2023 at 85-90 $/BBL ~27-28 70-75% 20 20 BBB+ Stable TRIS RATING STANDARD & POOR'S RATINGS SERVICES MCGRAW HILL FINANCIAL BBB stand-alone rating MOODY'S Baa2 stand-alone rating Fitch Ratings BBB stand-alone rating PTTEP AAA Stable Baa1 Stable#21Thank you and Q&A +66 2 537 4000 [email protected] http://www.pttep.com A KKKI PTTEP#22KKKI PTTEP Supplementary Information Reserves • Profit and Loss Statement 23 22 24 Five-year Investment Budget 25 Debt Profile 26 • Key Financial Ratios 27 • E&P Portfolio 28-30 Thailand, Myanmar, Malaysia 28 Middle East 29 Africa 30 Beyond E&P 31-32 SD/ESG 33-35 Thailand Energy Market 36-37 Project Information 38-47 Organization Structure 48 Ratios and Formulas 49 Conversion Table 50#23Reserves MMBOE Reserves Life 2022 by Geography 2,500 2,286 Domestic International 10.7 Years 2,123 2,286 2,000 844 1,622 1,442 773 48% 6.8 Years 1,500 51% 548 52% 49% 1,000 P1 P1 + P2 1,350 1,442 500 1,074 2020 2021 2022 Proved (P1) Probable (P2) 5-Year Average Proved Reserves Replacement Ratio (RRR) 2020 1.5X 2021 1.9X 2022 2.0X 2022 by Product Type Gas Liquid 2,286 28% 1,442 25% 72% 75% P1 P1 + P2 Based on average production per day of natural gas, condensate, and crude oil (including LPG) of 585 KBOED for the year ended December 31, 2022 Figures include reserves from equity method As of December 2022 23 23 PTTEP#24Profit and Loss Statement Total Revenues Sales (1) Sales Volume (BOED) (2) Sales Price (US$/BOE) Gain from a bargain purchase Others (3) Total Expenses Unit: million USD 2022 2021 %YTD Q4 22 Q3 22 %QoQ Q421 % YoY PTTEP 9,660 7,314 32% 2,697 2,617 3% 1,989 36% 9,270 6,731 38% 2,469 2,388 3% 1,867 32% 468,130 416,141 12% 500,456 478,323 5% 420,965 19% 53.39 43.49 23% 52.76 53.68 (2%) 46.87 13% 342 (100%) (8) 100% 390 241 62% 228 229 (0.1%) 130 98% 7,681 6,118 26% 2,294 1,936 18% 1,671 37% Major Expenses: Operating expenses Exploration expenses G&A DD&A Loss on financial instruments 1,110 861 29% 321 300 7% 275 17% 72 226 (68%) 8 42 (81%) 20 (60%) 578 355 63% 293 80 >100% 125 >100% 2,363 2,202 7% 650 631 3% 420 55% 184 234 (21%) 100 100% 7 >100% Impairment loss on assets 300 183 64% 205 95 >100% 183 12% Income tax expenses 2,061 1,287 60% 487 468 4% 448 9% Share of profit (loss) from associates and JV 20 15 33% 14 (17) >100% 3 >100% Net profit 1,999 1,211 65% 417 664 (37%) 321 30% Profit (Loss) from normal operation 2,647 1,479 79% 723 706 2% 513 41% Profit (Loss) from non-operating items (648) (268) (>100%) (306) (42) (>100%) (192) (59%) Non-operating items breakdown: Oil price hedging (186) (284) 35% 94 (>100%) 5 (>100%) Note: Tax from effect of FX Effect from FX and others Impairment loss Montara mediation agreement on Class Action Exploration assets write-off Gain from a bargain purchase / Reversal of contingent liab. (1) Include Oman Block 61 deemed sales revenues from tax payment by government (2) Exclude Oman Block 61 deemed sales volume from tax payment by government (3) Consisted of Revenue from Pipeline, Gain from FX, Forward Contract, and Gain from Oil price Hedging, Gain from reversal of Oman Block 61 Contingent Liabilities (15) (10) (50%) 12 (13) >100% 1 >100% (89) 12 (>100%) (53) (28) (89%) (15) (>100%) (300) (183) (64%) (205) (95) (>100%) (183) (129) (100%) (129) (100%) (12%) (100%) (145) 100% 71 342 (>100%) 71 100% 100% 24#25Five-year Investment Budget PTTEP 2023-2027 E&P Budget 29.1 bnUS$ CAPEX 18.1 bnUS$ OPEX 11 bnUS$ in KBOED Production CAGR +6.3% 787 800 750 757 722 Sales Volume 700 648 581 600 535 510 531 550 468 470 11 11 24 Africa 500 11 6 9 56 56 67 67 69 53 400 100 109 106 119 Middle East Other SEA 99 99 300 200 295 309 343 359 347 340 Thailand &MTJDA 100 0 OPEX 2023 Exploration Budget 223 mus$ MUS$ CAPEX 193 mUS$ 30 mUS$ 2022 2023 2024 2025 2026 2027 MMUSD 7,000 6,127 6,447 6,000 5,969 5,481 11 wells in Malaysia Investment 5,000 4,819 2,216 5,076 2,176 2,112 4,000 2,329 OPEX 2,389 1,041 2,144 971 779 CAPEX 3,000 317 293 (Dev & Pre-sanction 80 projects (3)) 2,000 5 wells in Thailand 1,000 2,350 2,835 2,980 3,190 3,078 2,639 CAPEX (Producing projects (4)) 0 1 well in Oman 2022 2023 2024 2025 2026 2027 Note: (1) Subject to site re-entering and resume construction timing (2) Subject to regulatory approval and FID timing (3) Development & Pre-sanction projects include Mozambique LNG, SK410B, and Southwest Vietnam (4) Including exploration and appraisal in all projects and head office CAPEX, and new businesses Key Project G2/61: March Capacity 700 MMSCFD (Apr 22: 200 MMSCFD Mar'23: 500 MMSCFD) G1/61: April Full Capacity 800 MMSCFD Start-up 25 Southwest Vietnam: 2H (2) MZA1 LNG: 1H (1) HBR (Full phase): 2H (2) SK410B: 2H (2) SK405B: 1H (2)#26Debt Profile USD Millions 700 600 500 400 300 200 100 0 2023 As of December 2022 2024 2025 182 2026 2027 Unit: USD Millions or equivalent after cross currency swap 2028 648 2029 26 26 379 350 2030 2031 2032 179 2033-2041 2042 2043-2058 490 2059 650 PTTEP#27Key Financial Ratios EBITDA Margin PTTEP Q3 2022 Q4 2022 76% 73% Profitability Ratios (%) Return on Equity 15% 15% Net Profit Margin 21% 21% Debt to Equity 0.33 0.28 Leverage Ratios (Times) Debt to EBITDA 0.62 0.56 Liquidity Ratio (Times) 27 Current Ratio 1.96 1.72#28E&P Portfolio | Thailand, Myanmar, Malaysia Myanmar Production Zawtika (WI 80%) • Production Volume gas 326 MMSCFD (12M2022) Yadana (WI 37.1%) • Production Volume gas 734 MMSCFD (12M2022) Exploration M3 (WI 100%) • Pending development Malaysia Production Block K (WI Kikeh 56%, SNP 22.4%, GK 7.2%) • Production Volume crude 27 KBPD and gas 26 MMSCFD (12M2022) Block H (WI Rotan 56%, Others 42%) • Production Volume gas 270 MMSCFD (12M2022) SK309 and SK311 (WI 42-59.5%) Including East Patricia field • Production Volume gas 214 MMSCFD, and crude 16 KBPD (12M2022) Exploration • SK410B (LLB), SK417, SK314A, SK438, SK405B • PM415, PM407 PTTEP Thailand Myanmar S1 Sinphuhom E5 M3 Thailand Yadana Zawtika B8/32 & 9A MD7 G1/61 (Erawan) Arthit Contract 4 Bongkot & G2/61 MTJDA Sabah H Sabah K SK410B SK417 Malaysia SK438 PM415 SK405B PM407 SK314A SK309& SK311 Production G1/61 Erawan (WI 60%) • FY2022 daily gas production 210 MMSCFD Ramp-up in progress to 800 MMSCFD in Apr 2024 • Sole investment 100% G2/61 Bongkot (WI 100%) • Block B15 Transition completed. ⚫ Block B16 and Block B17 will be transferred in March 2023 with a production target ramping up from 200 to 700 MMSCFD. Bongkot (WI 66.67%) • Production volume gas 715 MMSCFD and condensate 19 KBPD (12M2022) • Remaining transition Block B16 and B17 to G2/61 in Mar 2023 at 500 MMSCFD Arthit (WI 80%) • Production Volume gas 304 MMSCFD and condensate 16 KBPD (12M2022) Contract 4 (WI 60%) • Production Volume gas 417 MMSCFD and condensate 16 KBPD (12M2022) S1 (WI 100%) • Production Volume crude oil 26 KBPD (12M2022) MTJDA (WI 50%) • Production Volume gas 300 MMSCFD (12M2022) Supplying to Thailand at least 30 MMSCFD Production Exploration 28#29E&P Portfolio | Middle East UAE Abu Dhabi Offshore 1 Abu Dhabi Offshore 3 AGP PDO (Block 6) UAE OMAN PTTEP Sharjah Onshore Area C OLNG Production Block 6 (PDO) (WI 2%) • Largest asset covering around 1/3 of the country. Average oil production volume of 661 KBPD (12M2022) Operated by Petroleum Development of Oman Block 53 (WI 1%) • Largest single onshore producing field in Oman. Average oil production volume of 92 KBPD (12M2022) • Operated by Occidental (WI 47%) Block 61 (WI 20%) • Largest tight gas development in Middle East • Gas and condensate daily production rate of 1,500 MMSCFD • and 60,000 BPD (12M2022). Operated by BP (WI 40%) Exploration Onshore Block 12 (WI 20%) • Operated by Total E&P Oman (WI 80%) Midstream OMAN LNG (WI 2%) • The only LNG facility in Oman. Operated by Government of Oman (WI 51%) Oman Onshore Oman Block 61 OMAN Block 12 Exploration Abu Dhabi Offshore 1, 2, 3 (WI 30%) • High potential prospective resources with significant sizeable discoveries Operated by ENI (WI 70%) Sharjah Onshore Area A (WI 25%) . Completely signed a Farm-in/Farm-out Agreement . Operated by ENI (WI 50%) Sharjah Onshore Area C (WI 25%) • High gas & condensate potential with the possibility of • integrating with surrounding fields Operated by ENI (WI 50%) Midstream ADNOC Gas Processing (WI 2%) • AGP is one of the largest gas processing complexes in the world (total capacity of 8 BCFD) • JV: 3 plants with capacity of 1.2 BCFD • ADNOC: 2 plants with capacity of 6.9 BCFD • Essential to Abu Dhabi and UAE economy • Sizable volume of Propane, Butane and Naphtha • Operated by ADNOC (WI 68%) Abu Dhabi Offshore 2 Production phase Exploration phase Midstream 29 20 Mukhaizna (Block 53)#30E&P Portfolio | Africa Algeria Production 433a&416b (WI 35%) • Oil production consisting of block 433a, 416b • Operated by PVEP (WI 40%) Average Daily Production volume of crude at 16 KBPD Hassi Bir Rekaiz (WI 49%) • HBR oil filed consisting of block 443a, 424a and 415ext ⚫ 1st Oil in June 2022 and started delivering sales volume in Q4/2022. • Operated by Groupment (WI 51%) • Average Daily Production volume of crude at 13 KBPD Angola Development Block 17/06 (WI 2.5%) • FID in July 2022 for Begonia offshore oil field in the Lower Congo Basin. . Operated by Total Energies (WI 30%) • Divestment in progress estimate completion 2023 Bir Seba ALGERIA Block 17/06 Production Development Hassi Bir Rekaiz ANGOLA 30 MOZAMBIQUE MZA1 PTTEP Mozambique Development Area 1 (WI 8.5%) • High quality reservoirs capable up to 200 MMSCFD per well • Construction phase for LNG facility with capacity 13.1 MTPA (2 trains). • Currently under Force Majeure due to local security situation . Operated by TotalEnergies (WI 26.5%)#31Beyond E&P Decarbonization New Energies Corporate Venture Capital (CVC) Technology Enabler Carbon Capture & Utilization (CCU) CO₂-to-Methanol Value-added Technology H Carbon Capture & Storage (CCS) Initiative Support Decarbonization Demand HYDROGEN H2 Hydrogen/ Power-to-X DGE PTTEP Advanced Technology In-house Tech Act now for Future Energy/Fuel Commercialize in-house technology Power Business . Gas-to-Power AI AND ROBOTICS VENTURES • Renewables Al & Robotic Foundation for new energies Growth in Technology Business 31#32AI AND ROBOTICS VENTURES VENTURES BUILDER ARV is a Ventures Builder principally engaged in the research, development and provision of solutions using Artificial Intelligence and Robotics technologies, as well has ventures ideation, incubation, development and commercialization. BUSINESS UNITS ARV has successfully spun-off start-ups into separate legal entities focused on further commercialization and development of their respective deep-tech domains. ROVULA Unmanned Robotic Technologies and Data Analytics for Marine, Offshore and Underwater Assets SKYLLER Al-driven and Autonomous Aerial Drone Technologies, Operations and Data Analytics for Various Industries and Operations varuna One-Stop Agriculture and Climate Technology Solutions 金龙 CARIVA Health Solutions Platform that Simplifies Data Access, Manage Security and Accelerates the Creation of Digital Health Solutions bind Bridging Identity, Network and Data Software Solutions for Security, Privacy, and Data Controlling in the Web 3.0 > bedrock Geospatial Location Intelligence Platform and Al Technology to provide advanced location insights XGATEWAY Unmanned Surface Vehicle for Hydrographic Survey and Surveillance XPLORER Autonomous Underwater Vehicle for Subsea Pipeline Inspection NAUTILUS Underwater Robotic System for Inspection, Repair & Maintenance of Subsea Pipelines XSPECTOR IA cloud-based data management platform specifically tailored for subsea inspection and survey operations JOINT VENTURES ROVULA HORRUS Autonomous Nested Drone Systems for Asset Inspection, Surveillance and Mapping SKYLLER PLAFORM Data Platform for Fleet Management, Data Visualization and Analytics SKYLLER AI ML Al-Assisted anomalies detection for fast and accurate decision making UAV LOGISITIC DELIVERY Drone Delivery Solutions for intra-city, long range and remote delivery of critical cargo and parts MAKARA JOINT VENTURES SKYLLER AiANG SPRAYER UAV UAV for blanket and precision- spraying services for various crops SMART FOREST Green Area management platform and carbon credit solution KANNA Carbon Farming and nature Based climate action MAKARA Data management platform with satellite analytics JOINT VENTURES VARUNA HEALTH APPLICATIONS Variety of completed health applications for Health and wellness solutions HARDWARE SOLUTIONS Seamless integrate to software with loT and Robotics solutions BUILDING BLOCKS Data management and software API platforms for building the custom-made digital health solutions. JOINT VENTURES CARIVA Digital Corporate ID Automatic and Seamless Verification of Digital Signature with with E-Power of Attorney and National Identities of the Singers in any corporate transactions with global interoperability $177 TRUSTME Secured Wallet that keeps all identities and personal data JOINT VENTURES BIND CITY DIGITAL DATA PLAFORM Platform to supporting cities to operate urban infrastructure components and services efficiently with data connectivity MUNICIPAL TAX PLATFORM One-stop tax collection & valuation intelligent system to facilitate citizens for submission of online petition form, payment check and status tracking BUILDING PERMIT PLATFORM The integration of Al and GIS to streamline rive accurate, quick and convenient permission processes for officer and citizen ASSET MANAGEMENT PLATFORM Allows government offices to monitor, review and update assets' status for informed evaluation and decision making JOINT VENTURES BEDROCK ZEAQUEST S2 ROBOTICS aerosky SKYVIV SKY VISUAL IMAGING VENTURE ATI 32 32 B-MED#33EP Net Zero PTTEP 2020 Base Year 2030 30% GHG Intensity* Reduction 2040 50% GHG Intensity Reduction 2050 NET ZERO Greenhouse Gas Emissions E&P, Operational Control SCOPE 1 & 2 用白 *Intensity refers to GHG released in Tonne CO2e per thousand tonnes of hydrocarbon production 33#34Sustainability Initiatives 13 CLIMATE ACTION Decarbonization GHG Intensity Reduction Target 30% By 2030 (2020 base year) Net Zero By 2050 PROGRESS GHG Emission Reduction More than 166,000 TCO₂e Reduction from Jan Dec 2022 12 CONSUMPTION RESPONSIBLE AND PRODUCTION Circular Model Zero Waste to Landfill by 2030 ≥50% of Main Structure Reuse by 2030 ♦PROGRESS◆ Waste to Landfill 2020 2025 Zero Hazardous waste to landfill Zero Industrial waste to landfill 2030 Zero waste to landfill Fugitive & Vent Leak monitoring and preventing Energy Efficiency & Renewable Energy Improve energy efficiency and use more renewable energy Process Optimization Improve & optimize process efficiency Smart Logistics Logistics operation efficiency improvement Flare/Flash Gas Recovery Recover flare/flash gas to production process Production Well Management E&P Portfolio Management 14 WATER LIFE BELOW Ocean for Life PTTEP Net Positive Impact of Biodiversity & Ecosystem Services in Offshore Operations vs baseline by 2030 ≥50% Increase in Local community income vs baseline by 2030 PROGRESS Ocean Health & Biodiversity Monitoring 5 ocean current mappers deployed from offshore assets WHP Jacket Reuse Conduct a feasibility study for the reuse of Wellhead Platform (WHP) jacket in addition to the reuse of Wellhead Platform (WHP) topside Upcycling High Volume Waste Oil sludge conversion to Graphene: Completed lab scale unit fabrication Sand to Zeolite: Completed prototype study result to turn sand waste from petroleum production at Zawtika project to nano silica and zeolite with good moisture absorption rate =4 34 Conducting a pilot-scale seagrass plantation study in Koh Tean, Surat Thani Ramp Up CSR around Ocean Flagship Projects Phetchaburi Prachuap Chumphon Surat Thani Songkhla • 4 Aquatic Animal Hatchery Learning Samut Songkhram Rayong Nakhon Si Thammarat Pattani Centers Established (Phetchaburi, Prachuap Khiri Khan, Samut Songkhram & Rayong) • 12.8 km² Conservation Area & Fish Home 2 Sea Turtle Exhibition and Hatchery Building for the Royal Thai Navy Sea Turtle Conservation Center (Chonburi and Songkhla)#35ESG Disclosure & Ratings Human Social Development Resource S&P Global Ratings 100 80 AAA HESS Economic Human Rights ESG Climate & Disclosure Environment Health & Safety MSCI equinor Innovation & Technology Supply Chain Governance, Risk Management & Compliance ESG Ratings MOODY'S A 60 TotalEnergies Woodside PTTEP HESS REPSOL AA Woodside PTTEP 1 REPSOL A bo Santos TotalEnergies eni 2 en equinor bp Chevron 40 Santos PetroChina ExxonMobil 20 20 PTTER BBB BB B CCC ExxonMobil Chevron PetroChina HESS Woodside equinor PTTEP eni bp A- B B- ESG Standards GRI Global Reporting Initiative Reporting Standards (GRI Standards) Oil and Gas Sector Disclosures (OGSD) # CDP DISCLOSURE INSIGHT ACTION 0-10 SUSTAINALYTICS a Morningstar company As of December 2022 Source: S&P Global, MSCI, Moody's, CDP, SUSTAINALYTICS' websites equinor REPSOL 35 TotalEnergies HESS PTTEP bp 10-20 REPSOL TotalEnergies ExxonMobil 20-30 Chevron D D- 30-40 bp HESS equinor REPSOL PTTEP eni TotalEnergies Woodside Chevron ExxonMobil Santos 5 No Response Chevron Woodside PetroChina ExxonMobil Santos 40+ PetroChina#36VALUE CHAIN OVERVIEW Thailand Energy Market Natural Gas Supply Natural Gas Consumption FY 2020 FY 2021 11M 2022 Domestic Domestic Domestic MMSCFD Myanmar LNG 4,294 Myanmar LNG 4,726 Myanmar LNG 4,699 0 1,000 2,000 3,000 4,000 5,000 FY 2020 FY 2021 11M 2022 MMSCFD Electricity Industry GSP NGV 4,184 Electricity Industry GSP NGV 4,395 Electricity Industry GSP NGV 4,368 0 1,000 2,000 3,000 4,000 5,000 11M 2022 Thailand's Oil and Gas Demand 12M 2022 Thailand Petroleum Production Crude Oil & Condensate ~ 1.0 m BOE/D Domestic 13% Imports 87% ~ Natural Gas 0.7 m BOE/D Domestic Imports 62% 38% % by Petroleum Type and Area Onshore 10% FY2020 FY2021 11M 2022 Electricity Generation PTTEP GWH 53% 3% 17% 17% 10% 199,514 54% 2% 17% 16% 11% 209,717 55% 2% 18% 14% 10% 206,034 Natural Gas Imported Hydro Electricity Renewable Energy Coal & Lignite Midstream Gas: operated by PTT Gas 74% Offshore 90% Transmission Pipelines Gas Separation Plants Liquid 26% % Production by Company PTTEP 59% Others 41% 36 Downstream Oil: PTT participates through subsidiaries Petrochemicals Oil and gas marketing Refineries#37Thailand Energy Market | Oil & Gas Balance Oil Balance*** Maintains stability supply through adequate refining capacity Import (88%) 1024 KBD Gulf of Thailand (52%) Indigenous (12%) 143 KBD Natural Gas Balance**** Main driver of the Thailand economy Onshore (3%) SALES PRODUCTION SUPPLY Source: PTT Note: * ** Imported Refined Petroleum Products 59 KBD Crude/ Condensate 965 KBD Total Refining Capacity in Thailand 1,242 KBD Crude/ Condensate 129 KBD PTT's Associated Refineries 770 KBD (TOP, PTTGC, IRPC) Crude Export 14 KBD Other Refineries 472 KBD (SPRC, ESSO, BCP) Refined Products 1,067 KBD * Refined Products 173 KBD Domestic 935 KBD ** Export 187 KBD Refined product from refineries = 990 KBD, including domestic supply of LPG from GSPs and Petrochemical Plants = 77 KBD Included Inventory *** Information as of 9M 2022 **** Information as of 9M 2022 MMSCFD @ Heating Value 1,000 Btu/ft³ 37 Others 39% PTTEP 61% 2,232 MMSCFD Bypass Gas 200 MMSCFD 6 Gas Separation Plants Total Capacity 2,870 MMSCFD Import (45%) LNG 64% Myanmar 36% @Actual Heat 110 MMSCFD 1,929 MMSCFD 804 MMSCFD (18%) Petrochemical Ethane Propane Feedstock LPG (11%) NGL Industry Household LPG Transportation NGL (7%) Methane 1,251 MMSCFD Power (659%) Industry (20%) NGV (3%)#38Projects Details | Thailand 1 Arthit 2 B6/27 Sales Vol Gas Sales Vol Liquid Project Name Status Phase Participating Interest* (%) Latest Status (MMSCFD) (KBPD) OP Production PTTEP Chevron 80% 294 16 Ensure gas delivery at the highest DCQ 20% MOECO 4% OP gp Production PTTEP 100% PTTEP Prepare for decommissioning activities Pending the Final Decommissioning Plan (FDP) and Decommissioning Cost Estimation (DCE) approval from DMF 3 B8/32 & 9A JV Production PTTEP 25.01% 48 11 Normal operations Chevron 51.66% MOECO 16.71% KrisEnergy 4.63% Palang Sophon 2% OP Production 4 Bongkot PTTEP 66.67% 687 19 TotalEnergies 33.33% • Infill drilling for BKT Sole investment Maintain production level as planned Carry out non-transferred asset decommissioning • JV Production 5 Contract 4 (Pailin) PTTEP 60% 402 16 Ensure gas delivery at DCQ Chevron 35% MOECO 5% JV Production 6 E5 PTTEP 20% 7 Maximize gas deliverability level at CDC. ExxonMobil 80% Note: ** PTTEP denotes respective PTTEP subsidiaries participating in the project Sales volume represent average volume for 100% of the project during 12M2022 *** Status: OP PTTEP operatorship/JOC = PTTEP joint operatorship/ JV = PTTEP Joint Venture Partner **** DCQ Daily Contractual Quantity 38 38#39Projects Details | Thailand Project Name Status Phase Participating Interest* (%) Sales Vol Gas (MMSCFD) Sales Vol Liquid (KBPD) 7 G4/43 JV Production 1 2 PTTEP 21.375% Chevron 51% MOECO 21.25% Palang Sophon 6.375% 8 G4/48 JV Production 1 PTTEP 5% Chevron 71.25% MOECO 23.75% 9 L53/43 & L54/43 OP Production PTTEP 100% 0.8 • 10 10 PTTEP 1 11 S1 OP Production PTTEP 100% Ho OP Production 8 PTTEP 100% 0.2 Crude: 26 KBPD LPG: 177 MTon/Day 12 Sinphuhorm OP Production 97 0.3 PTTEP Apico 55% 35% ExxonMobil 10% OP Production 13 L22/43 PTTEP 100% Note: * ** *** PTTEP denotes respective PTTEP subsidiaries participating in the project Sales volume represent average volume for 100% of the project during 12M2022 Status: OP = PTTEP operatorship / JOC = PTTEP joint operatorship/ JV = PTTEP Joint Venture Partner 39 89 . Latest Status PTTEP Deliver production volumes as nominated from the buyer and oil production as planned Decommissioning activities in progress Normal operations In process to preparing drilling campaign in 2023 Maintain production plateau Completed 3 exploration wells drilling in Q4/2022. Started EOR GSE field wide injection. The progress of production optimization and long-term development are on-going according to proposed business plan and work plan's activities. Maximize gas deliverability level at CDC. In process to preparing drilling campaign in 2023 Production suspended Pending drilling results to determine further production/development plans#40Projects Details | Thailand Sales Vol Gas Sales Vol Liquid Project Name Status Phase 14 MTJDA Participating Interest* (%) Latest Status (MMSCFD) (KBPD) JOC Production 285 9 PTTEP CPOC 50% Normal operations 50% 15 G9/43 OP Exploration PTTEP 100% 16 G1/61 (Erawan) OP Production 145 PTTEP Mubadala 60% 40% Condensate: 3 KBPD Crude: 4 KBPD • 17 G2/61 (Bongkot) OP Production 138 5 PTTEP 100% Note: * PTTEP denotes respective PTTEP subsidiaries participating in the project Sales volume represent average volume for 100% of the project during 12M2022 Status: OP PTTEP operatorship/JOC = PTTEP joint operatorship/ JV = PTTEP Joint Venture Partner 40 40 • Activity suspended Completely installed all 8 WHPS All 6 rigs are in operations On-going drilling activities on existing and new platforms On-going drilling activities on existing and new platforms PTTEP#41Projects Details | Southeast Asia Project Name Malaysia Block K 1 - Kikeh - Siakap-North Petai field (SNP) - Gumusut-Kakap field (GK) Participating Interest* (%) Sales Vol Gas (MMSCFD) Sales Vol Liquid (KBPD) Status Phase OP (Kikeh & SNP) Production PTTEP JV (GK) 2 Malaysia SK309 and SK311 OP Production PTTEP 3 Malaysia Block H OP Production PTTEP 4 Malaysia - Other projects OP Exploration PTTEP Kikeh 56% SNP 22.4% GK 7.17% 27** 26 ** 42-59.5% 214 ** 16 ** 42-56% 270 ** 42.5 -80% (varied by permits) 5 Yadana (Myanmar) OP Production 717 PTTEPI Chevron MOGE 37.1% 41.1% 21.8% 6 Zawtika: M9 & a part of M11 (Myanmar) OP Production 317 PTTEP 80% Myanma Oil and 20% Gas Enterprise (MOGE) Note: PTTEP denotes respective PTTEP subsidiaries participating in the project *** Sales volume represent average volume for 100% of the project during 12M2022 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 41 . Latest Status PTTEP The inspection and maintenance were completed as planned The Project commenced production from GK field development phase 3 Completed drilling at 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 completed as plan SB412 Started the 3D seismic reprocessing. Major activities completed as plan On the development process of Phase 1D to maintain production level In the process of additional wellhead platform construction#42Projects Details | Southeast Asia | Project Name Status Phase 7 Myanmar M3 OP Exploration PTTEP Participating Interest* (%) Sales Vol Gas (MMSCFD) Sales Vol Liquid (KBPD) Latest Status 100% Pending for Final Investment Decision (FID) 8 Vietnam 9-2 JOC Production PTTEP 25% 12 3 Started drilling the first development well Vietnam Oil and 50% Gas Group Pharos Energy 25% 9 Vietnam 16-1 JOC Production 4 12 PTTEP 28.5% Completed drilling of 2 development wells Vietnam Oil and 41% Gas Group Pharos Energy 28.5% OPECO 2% 10 10 Vietnam B & 48/95 JV Exploration PTTEP 8.5% Final Investment Decision (FID) planned in 2023 Vietnam Oil and 65.88% Gas Group MOECO 25.62% 11 Vietnam 52/97 JV Exploration PTTEP 7% Final Investment Decision (FID) planned in 2023 Vietnam Oil and 73.4% Gas Group MOECO 19.6% 12 Natuna Sea A (Indonesia) JV Production 172 1 PTTEP 11.5% Completed drilling of 2 development wells Harbour Energy 28.67% KUFPEC 33.33% Petronas 15% Pertamina 11.5% Note: * PTTEP denotes respective PTTEP subsidiaries participating in the project *** Sales volume represent average volume for 100% of the project during 12M2022 Status: OP = PTTEP operatorship/JOC = PTTEP joint operatorship/ JV = PTTEP Joint Venture Partner 42 PTTEP#43Projects Details | Middle East Sales Vol Gas Sales Vol Liquid Project Name Status Phase Participating Interest* (%) Latest Status (MMSCFD) (KBPD) 1 Abu Dhabi Offshore 1 JV Exploration PTTEP 30% G&G study is ongoing (UAE) Eni 70% 2 Abu Dhabi Offshore 2 JV Exploration PTTEP 30% In progress of appraisal well drilling (UAE) Eni 70% 3 Abu Dhabi Offshore 3 (UAE) JV Exploration PTTEP 30% G&G study is on-going Eni 70% 4 Sharjah Onshore Area C JV Exploration PTTEP 25% Seismic processing in progress (UAE) Eni 50% SNOC 25% 5 Sharjah Onshore Area A (UAE) JV Exploration PTTEP 25% Completion of the acquisition on December 23, 2022 Eni 50% SNOC 25% 6 Oman Block 6 (PDO) JOC Production 661 ** PTTEP 2% Normal operations Government of Oman 60% Shell 34% TotalEnergies 4% Note: ** *** PTTEP denotes respective PTTEP subsidiaries participating in the project Sales volume represent average volume for 100% of the project during 12M2022 except for PDO Block 6 and Mukhaizna (Production volume 100%) Status: OP PTTEP operatorship/JOC = PTTEP joint operatorship/ JV = PTTEP Joint Venture Partner 43 PTTEP#44Projects Details | Middle East Project Name Status Phase Participating Interest* (%) Sales Vol Gas Sales Vol Liquid Latest Status (MMSCFD) (KBPD) 7 Oman Block 53 JV M Production 92 ** PTTEP 1% Normal operations Occidental 47% OOCEP 20% Indian Oil 17% Mubadala 15% 8 Oman Onshore Block 12 JV Exploration PTTEP 20% Total E&P Oman Block 80% G&G study is on-going Plan for exploration wells drilling in 2023-2024 12 B.V. 9 Oman Block 61 JV Production PTTEP 20% 1,497 59 59 • Normal operations BP 40% Makarim Gas 30% Development LLC Petronas 10% Note: PTTEP denotes respective PTTEP subsidiaries participating in the project Sales volume represent average volume for 100% of the project during 12M2022 Status: OP = PTTEP operatorship/JOC = PTTEP joint operatorship/ JV = PTTEP Joint Venture Partner 44 PTTEP#45Projects Details | Rest of the World | Project Name Status Phase 1 PTTEP Australasia Participating Interest* (%) Sales Vol Gas (MMSCFD) Sales Vol Liquid (KBPD) OP Exploration PTTEP 90%-100% 2 Mozambique Area 1 JV Development PTTEP 8.5% TotalEnergies, Mitsui, 26.5%,20% ENH, OVL 15%, 10% OVRL & Oil India, 10%, 10% Bharat 3 Algeria 433a & 416b JOC Production GBRS 16 ** 35% (Bir Seba) PetroVietnam 40% Sonatrach 25% 4 Algeria Hassi Bir Rekaiz OP Production GHBR 49% 2 (daily production Sonatrach 51% 13KBPD) OP Exploration PTTEP 100% 5 Mariana Oil Sands Ho (Canada) 6 Barreirinhas AP1 JV M (Brazil) Note: * ** *** Exploration PTTEP 25% Shell 65% Mitsui E&P 10% PTTEP denotes respective PTTEP subsidiaries participating in the project Sales volume represent average volume for 100% of the project during 12M2022 except for Algeria 433a & 416b (production volume) Status: OP=PTTEP operatorship/JOC = PTTEP joint operatorship/ JV = PTTEP Joint Venture Partner 45 Latest Status PTTEP Cash Maple (AC/RL7) and Oliver (AC/RL12): Defining proper direction in order to increase development opportunities Tenacious and Oliver: Well abandonment in progress Other exploration projects: G&G studies The roject is still under Force Majeure and suspension. Plan to resume construction activities after security and safety restored Completed drilling of 5 infilled wells and 2 wells are on-going • Started production from new wells in Q4/2022 1st oil production on June 1, 2022, with daily production rate 13 KBPD Continue remaining drilling and construction work of phase 1 and initiative works Reclamation activities in progress to return the area to Canadian government Divestment is in progress#46Projects Details | Rest of the World PTTEP Project Name Status Phase Participating Interest* (%) Sales Vol Gas (MMSCFD) Sales Vol Liquid (KBPD) Latest Status 7 Brazil BM-ES-23 JV Exploration PTTEP 20% Divestment is in progress Petrobras 65% INPEX 15% 8 Mexico block 12 (2.4) JV M Exploration PTTEP 20% Evaluating the remaining petroleum potential Petronas 60% Ophir Mexico 20% 9 Mexico block 29 (2.4) JV Exploration PTTEP 16.67% Pre-development study in progress Repsol 30% PC Carigali Mexico Wintershal DEA 28.33% 25% 10 Block 17/06 (Angola) JV Pre-development PTTEP 2.5% In process of SPA to sell all interest, the completion expected by mid-2023 TotalEnergies 30% Sonangol 30% SSI 27.5% Acrep 5% Falcon Oil 5% 11 Dunga (Kazakhstan) JV Production 2 12 PTTEP 20% Normal operations TotalEnergies OOCEP 60% 20% Note: * *** PTTEP denotes respective PTTEP subsidiaries participating in the project Sales volume represent average volume for 100% of the project during 12M2022 Status: OP = PTTEP operatorship / JOC = PTTEP joint operatorship/ JV = PTTEP Joint Venture Partner 46#47Projects Details | Rest of the World Project Name Status Phase Participating Interest* (%) Sales Vol Gas (MMSCFD) Sales Vol Liquid (KBPD) 1 Oman LNG Shareholder Production N/A N/A PTTEP 2% Government of 51% Oman Shell 30% TotalEnergies 5.54% Korea LNG 5% Mitsubishi 2.77% Mitsui 2.77% Itochu 0.92% 2 ADNOC Gas Processing (AGP) [UAE] JV ✓ Production N/A N/A PTTEP 2% ADNOC 68% Shell 15% TotalEnergies 15% Note: * PTTEP denotes respective PTTEP subsidiaries participating in the project Sales volume represent average volume for 100% of the project during 12M2022 *** Status: OP = PTTEP operatorship/JOC = PTTEP joint operatorship/ JV = PTTEP Joint Venture Partner 47 117 Normal Operations Total capacity 10.4 MTPA Normal Operations Total capacity 8 BCFD Latest Status PTTEP#48Organization Structure Corporate Governance and Sustainable Development Committee Audit Committee Internal Audit E&P Legal Division Board of Directors Nominating and Remuneration Committee Chief Executive Officer Risk Management Committee Safety, Security, Health and Environment Division Branding, Communications, and Knowledge Intelligence Division Corporate Secretary and Assurance Division PTTEP Engineering, Development, 自自自由自自自自 Geosciences, Strategy and Technology and Finance and Domestic International Operations Subsurface, and Sustainable Carbon Accounting Production Production Support Group Exploration and Maintenance Growth Group Solutions Group Group Asset Group Asset Group Group Group 48#49Ratios and Formula Oil and Gas Reserves Reserves Replacement Ratio Reserves Life Index (Year) 5-Yr Additional Proved Reserves / 5-Yr Production Volume Profitability Success Ratio Sales Revenue Lifting Cost ($/BOE) Cash Cost ($/BOE) Unit Cost ($/BOE) EBITDA EBITDA Margin Return on Assets (ROA) Return on Equity (ROE) Total debt Net debt Debt to Equity Net Debt to Equity Leverage Total Debt to Capital Total Debt to EBITDA Net Debt to EBITDA EBITDA Interest Coverage Ratio Proved Reserves / Production Volume Number of wells with petroleum discovery / Total number of exploration and appraisal wells Sales + Revenue from pipeline transportation (Operating Exp. - Transportation Cost - Stock Variation - Other expenses not related to lifting) / Production Volume (Operating Exp. + Exploration Exp. + G&A + Royalties + Finance Cost) / Sales Volume (Operating Exp. + Exploration Exp. + G&A + Royalties + Finance Cost + DD&A) / Sales Volume (Sales + Revenue from pipeline transportation) - (Operating expenses + Exploration expenses + Administrative expenses + Petroleum royalties and remuneration + Management's remuneration) EBITDA / Sales Revenue Trailing-12-month net income/Average assets between the beginning and the end of the 12-month period Trailing-12-month net income / Average shareholders' equity between the beginning and the end of the 12-month period Short-term loans from financial institution + Current portion of long-term debts + Bonds + Long-term loans from financial institution Total debt-Liquidity Total debt/ Shareholders' equity Net debt / Shareholders' equity Total debt / (Total debt + Shareholders' equity) Total debt / Trailing-12-month EBITDA Net debt / Trailing-12-month EBITDA Trailing-12-month EBITDA / Trailing-12-month Interest Expenses & Amortization of Bond Issuing Cost 49 PTTEP#50Conversion Table Crude Oil To Convert Tonnes (metric) Kilolitres Barrels US Gallons Tonnes/year From Multiply by Tonnes (metric) 1 1.165 7.33 307.86 Kilolitres 0.8581 1 6.2898 264.17 Barrels 1.1364 0.159 1 42 US Gallons Barrels/day 0.00325 0.0038 0.0235 1 49.8 Natural Gas and LNG To Convert Billion cubic metres NG Billion cubit feet NG Million tonnes oil Million tonnes Trillion BTU MBOE equivalent LNG From Multiply by 1 billion cubic metres NG 1 35.315 0.86 0.735 34.121 5.883 1 billion cubic feet NG 0.028 1 0.024 0.021 0.966 0.167 1 million tonnes oil equivalent 1.163 41.071 1 0.855 39.683 6.842 1 million tonnes LNG 1.36 48.028 1.169 1 46.405 8.001 1 trillion BTU 0.029 1.035 0.025 0.022 1 0.172 1 MBOE 0.17 6.003 0.146 0.125 58 1 50 PTTEP