operating expenses in Q1–2021 increased from Q1–2020 and decreased from Q4–2020 at a similar rate with an increase or decrease in revenue each quarter, mainly due to the change rate in the cost that increases

service Cost of sales and service for the period ended 30 June 2020 and 2019 are presented below: Q2-2019 Q1-2020 Q2-2020 6M-2019 6M-2020 Change THB Mn THB Mn THB Mn %QoQ %YoY THB Mn THB Mn %YoY Fuel

completed. 4 Cost of sales and service Cost of sales and service for the period ended 30 September 2020 and 2019 are presented below: Q3-2019 Q2-2020 Q3-2020 9M-2019 9M-2020 Change THB Mn THB Mn THB Mn %QoQ

also decrease in line with the fuel material cost of natural gas. Q2-2020 Q1-2021 Q2-2021 6M-2020 6M-2021 Change THB Mn THB Mn THB Mn %QoQ %YoY THB Mn THB Mn %YoY Revenue from construction under a

30 September 2021 and 2020 are presented below: Q3-2020 Q2-2021 Q3-2021 9M-2020 9M-2021 Change THB Mn THB Mn THB Mn %QoQ %YoY THB Mn THB Mn %YoY Fuel materials cost 515.9 583.3 643.3 10.3% 24.7

improvement at Baht 1 million from cancellation of leasehold office building in the beginning of the year.  Finance cost In Q3/2019, finance cost was no change from the prior year same period.  Profit for the

, liabilities and shareholders’ equity of the Company’s group as follows: Impacted Items to the Companies Group Estimated as at 30 December 2017 Cost Basis (Before Change) Revaluation Basis (After Change

the Year Ended 31 December (YoY) Cost of sales Consolidated financial statements Change Increase/(Decrease) For Year Ended 31 December 2017 2018 THB mm % THB mm % THB mm % Raw material and packaging

and the Reversal of loss on devaluation of inventories. Another key factor in reduction in Cost of Goods Sold is the change in estimated useful lives of fixed assets as disclosed in the Note to

ended 31 Mar 2020 (3M YoY) Cost of sales Consolidated financial statements Change Increase/(Decrease) For the three months ended 31 March 2019 2020 THB mm % THB mm % THB mm % Raw material and packaging