1 25 May 2020 Subject: Notification on Resolution of the Board of Directors’ Meeting No. 5/2020, Change of Directors and Directors’ Power, Entering into Connected Transaction, Entering into

Discussion and Analysis of Business Operation for Q1/2019 Bangchak Corporation Plc. I 5 Important Events in the Quarter  Important change in accounting policy from the International Financial Reporting

ended 31st December July - Sept 2018 July - Sept 2017 Change % Change Apr - Dec 2018 Apr - Dec 2017 Change % Change Revenue from sales & service 791.59 793.67 -2.08 -0.3% 2,489.75 2,531.58 -41.83 -1.7

of goods 12,923 29,910 (57%) Net foreign exchange gains 216 105 105% Net gain from write-off the expired legal prescription of liabilities 10 119 (91%) Net gain from debt restructuring 0 1 (100

Baht 3rd Quarter 2019 3rd Quarter 2018 % Variance Income Revenue from sale of goods 3,083 8,666 (64%) Net foreign exchange gains 19 113 (83%) Gain from debt restructuring 0 1 (100%) (Reversal of) loss on

greatly contracted by trade impacts and the higher For three months For nine months Consolidated financial statement ended 31st December ended 31st December Oct - Dec 2019 Oct - Dec 2018 Change % Change Apr

the debtors and assessment of both the current and forecast general economic conditions. (in thousand Baht) Allowance for impairment losses 31 December 2019 31 March 2020 Change Consolidated financial

statement ended 30th Sept ended 30th Sept July - Sept 2020 July - Sept 2019 Change % Change Apr - Sept 2020 Apr - Sept 2019 Change % Change Revenue from sales & service 518.91 745.69 -226.78 -30.4% 930.49

Discussion & Analysis Q1/2022 Operating Highlights in Q1/2022 Q1/21 Q1/22 Change +/(-) (THB million) %YoY Operating Revenue 179 198 11% Gross Profit 105 120 14% EBITDA 57 58 2% Net Profit (Loss) for the

Summary Significant Events Operating Highlights in Q1/2023 Q1/22 Q1/23 Change +/(-) (THB million) %YoY Operating Revenue 198 264 33% Gross Profit 120 168 40% EBITDA 58 80 38% Net Profit (Loss) for the