Investor Presentaiton

3 CORPORATE GOVERNANCE CONSISTENCY RISING STAR Sustainability Excellence 2021 Sustainability Award Silver Class 2022 S&P Global YEARS •JEGCO GROUP TRIS RATING A Strategic Partner of S&P Global THS THAILAND SUSTAINABILITY INVESTMENT 2022 Member of Dow Jones Sustainability Indices Powered by the S&P Global CSA บาน บ SET National (C Cntrauitlee A Thai Institute of Directors Achieved Rising Star Sustainability Awards by SET EGCO received Rising Sustainability Awards for SET market capitalization of over Baht 100 BN in 2021 Silver Class Distinction in Sustainability Award from S&P Global in 2022 EGCO was rated Silver Class and ranked in the world's top 10 in the category of Electric Utilities from the S&P Global Sustainability Award and was selected in the Sustainability Yearbook 2022 from S&P Global Assessment Rated AA+ with Negative Outlook by TRIS EGCO received AA+ rating with Negative outlook by TRIS rating in 2022 Listed SETTHSI for 8th Consecutive Year EGCO listed THSI (Thailand Sustainability Investment) 2022 for the 8th consecutive year Listed 2022 DJSI for 3rd Consecutive Year EGCO Group listed as DJSI member in emerging markets index in Electric Utilities category for 3rd consecutive year in 2022 Excellent Rating on CGR from IOD EGCO continues to receive an excellent rating on Corporate Governance Report of Thai LISTED COMPANIES (CGR) with a total score of 97 points from a survey by Thai Institute of Directors in 2022 23

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