Sustainable Development

ASEAN CG Scorecard 2020 Asset ESG Corporate Awards 2020 Thailand Best Employer Brand Awards 2021

SET Awards 2020 ASEAN CG Scorecard 2019 “Excellent” level of CGR 2020 DJSI member for the 7th consecutive year Asia Responsible Enterprise Awards 2020 National Innovation Awards 2020 2020 Role Model Organization Award on Human Rights LESS Award Letter of Recognition 2020 Asia-Pacific Stevie Awards 2020 FTSE4Good Index Series Zero Accident Campaign 2020 Award – Silver level 3G Best Social Empowerment Award 15th ASIAN ESG Award 2019 – The Best of Asia The NACC Integrity Award Golden Peacock Award: Winner Award Global CSR award 2020: Platinum Winner Thailand Best Employer Brand Awards 2020

SET Awards 2019 2019 Thailand Sustainability Investment PADMAMITR+ Awards 2019 An Excellent Level of CG Practices Thailand Energy Awards 2019 2019 Role Model Organization Award on Human Rights DJSI member BAZNAS award 2019: Best CSR Organizer FTSE4Good Index Series for 4th consecutive year Board of the Year Award 2018 The 9th Asian Excellence Award 2019 Stevie Awards 2019: Silver Class Asia Responsible Enterprise Awards 2019 Global CSR Summit and Awards 2019 The NACC Integrity Awards PTTEP’s Petroleum Development Support Base certified with ISO 45001 3G Best CSR Campaign 2019 Best Community Development and Overall CSR Awards Asian Corporate Governance Award 2019 Global CSR Award 2019: Platinum Winner Best Practice Awards 2019 Green Office Award 2561: Excellent Level (G-Gold)

PTTEP receives Sustainability Report Award 2018 in Excellence Category PTTEP Receives Best Investor Relations Accolade at the SET Awards 2018 PTTEP wins 2 awards from ASEAN CG Scorecard PTTEP Receives Top CSR Advocates at Asia Corporate Excellence & Sustainability Awards 2018 PTTEP receives SET Sustainability Award and Thailand Sustainability Investment Award 2018 PTTEP Myanmar Asset certified to ISO 22301 Business Continuity Management System Fifth consecutive year of PTTEP as Dow Jones Sustainability Indices (DJSI) member PTTEP remains constituent member of “FTSE4Good Index Series” for the 3rd consecutive year PTTEP honored with 3 awards from Asian Excellence Awards 2018 PTTEP certified as member of Private Sector Collective Action Coalition against Corruption (CAC) for second consecutive term PTTEP receives 2 CSR Awards from the Asia Responsible Enterprise Awards 2018 PTTEP receives Stevie Award PTTEP’s CSR Initiatives Win Three Awards at 10th Annual Global CSR Summit 2018 and Awards and the Global Good Governance Awards 2018 Sixth consecutive year of PTTEP receiving Asia’s Icon on Corporate Governance Award PTTEP receives award for supporting Pedestrian and Cyclist Safe Zones in Ranong PTTEP receives the Green Office Award in Excellence Level (G-Gold) PTTEP receives 3 awards at the Asia regional level from the Asset Magazine

PTTEP receives Sustainability Report Award 2017 PTTEP was recognized as 2017 Thomson Reuters Top 100 Global Energy Leader PTTEP received Best use of multimedia for IR from IR Magazine PTTEP receives Outstanding Investor Relations and Innovative Company Awards from SET Awards 2017 PTTEP recognized as global leader in sustainable water and climate management PTTEP receives SET’s Thailand Sustainability Investment Award 2017 PTTEP receives 2 National Occupational Safety and Health Awards for third consecutive year PTTEP receives 2017 LESS Award Letter of Recognition from TGO PTTEP becomes first Thai organization to receive 2017 Global Duty of Care Award PTTEP listed as the Dow Jones Sustainability Indices (DJSI) member for the fourth consecutive year PTTEP receives the runner-up of Duty of Care Awards 2017 PTTEP becomes a constituent of FTSE4Good Emerging Index 2017 PTTEP honored with 3 awards from Asian Excellence Awards 2017 PTTEP’s CSR projects in Indonesia and Songkhla honored with Stevie Award PTTEP Indonesia wins Platinum Award for Best Community Program at the 9th Annual Global CSR Summit 2017 PTTEP receives Thailand Corporate Excellence Awards 2016 PTTEP awarded the RobecoSAM Gold Class Sustainability Award 2017 PTTEP becomes a constituent of FTSE4Good Emerging Index 2016

PTTEP received 4 awards from the Asset Magazine PTTEP receives an Outstanding Sustainability Report Award 2016 PTTEP is honored with the SPE Distinguished Corporate Support Award PTTEP received 3 awards for excellence in safety, health and environmental management in petroleum operations PTTEP listed on sustainability index DJSI for three consecutive years PTTEP receives Best CFO Award from the Investment Analysts Association PTTEP Wins 2 National Occupational Safety and Health Awards PTTEP honored with 3 awards from Hong Kong’s Corporate Governance Asia Magazine PTTEP’s CSR project in Myanmar honored with Stevie Award PTTEP awarded Platinum Award on PTTEP’s free healthcare center project PTTEP received Asia’s Best CFO from the Corporate Treasurer PTTEP wins BG Group’s Gold Hard Hat Award PTTEP receives ISO 22301 certification for Business Continuity Management System PTTEP receives Corporate Governance Asia Recognition Award - THE BEST OF ASIA

PTTEP receives two CG awards from The ASEAN Capital Market Forum PTTEP the first and only company in Southeast Asia listed in CDP’s Climate A List PTTEP receives Best Investor Relations Awards from SET PTTEP receives 4 awards from Board of the Year 2015 PTTEP receives recognition plaque “Thailand Sustainability Investment 2015” PTTEP received 2 awards for excellent level of health, safety and environmental management in petroleum operations PTTEP becomes a DJSI listed company for two consecutive years PTTEP receives Thailand’s Top Corporate Brands 2015 for the third time PTTEP receives Certificate of ESG100 Company PTTEP receives Honorary Member Award from TBCSD PTTEP receives Best Regional Cash Management Solution Award from the Asset Magazine PTTEP received 4 awards from the “5th Asian Excellence Awards 2015 PTTEP Receives Awards in PTT Group Operational Excellence Award 2015 PTTEP receives Thailand Quality Class (TQC) Award for second consecutive year PTTEP receives SPE Thailand E&P Awards 2014 PTTEP receives 3 awards from IAA Awards 2014 PTTEP received a plaque of honor from Prime Minister Prayuth Chan-ocha for becoming a DJSI listed company PTTEP receives 3 distinguish awards from the successfully launch of Hybrid Bonds PTTEP receives Charta Peduli 2014 for its free clinic in Indonesia