Mn THB Mn THB Mn %QoQ %YoY THB Mn THB Mn %YoY Fuel materials cost 643.3 811.4 987.0 21.6% 53.4% 1,763.1 2,606.5 47.8% Depreciation and amortisation cost 154.0 169.1 169.3 0.1% 9.9% 461.9 504.2 9.2

of sales and service THB Mn THB Mn THB Mn THB Mn THB Mn % THB Mn THB Mn THB Mn % Fuel materials cost 808.1 811.4 987.0 1,001.8 14.8 1.5% 2,485.6 3,608.3 1,122.7 45.2% Depreciation and amortisation cost

and 2022 are presented below: Cost of sales and service Q3-2022 Q2-2023 Q3-2023 Change 9M-2022 9M-2023 Change THB Mn THB Mn THB Mn %QoQ %YoY THB Mn THB Mn %YoY Fuel materials cost 987.0 808.3 777.3 (3.8

-2023 Q4-2023 Change QoQ 2022 2023 Change YoY THB Mn THB Mn THB Mn THB Mn THB Mn % THB Mn THB Mn THB Mn % Fuel materials cost 905.5 808.3 777.3 779.5 2.2 0.3% 3,608.3 3,270.6 (337.7) (9.4%) Depreciation

Baht 110.9 million. Cost of sales and service Quarter 2 Quarter 1 Quarter 2 Change 6-month 6-month Change (Unit: THB Mn) 2023 2024 2024 %QoQ %YoY 2023 2024 %YoY Fuel materials cost 808.3 716.5 754.0 5.2

2024 %YoY Fuel materials cost 777.3 754.0 850.8 12.8% 9.5% 2,491.1 2,321.3 (6.8%) Depreciation and amortization cost 180.0 195.6 204.8 4.7% 13.8% 531.4 581.9 9.5% Staff cost, repair and maintenance and

whole entire year.  The refinery business had an inventory loss of THB 1,489 million (including lower of cost or market (LCM) THB 689 million) from the sharp decline of crude oil price in the global

quarter, which has led to retail prices at service stations aligning at an appropriate level to the cost of finished oil products. While marketing margin in Q2/2018 was highly affected by the sharp rise in

appreciated. Whereas in 2018 inventory loss was recorded at THB 1,489 million (including lower of cost or market (LCM) THB 689 million) due to the sharp decline of crude oil price in the global market between

the COVID-19 crisis that has spread across various countries in the world. This has caused crude oil price in the global market to sharp deteriorate since late Q1/2020 continuing into Q2/2020