-month period ended 30 June Change % Change 2 / 5 Operating results by business for the three-month period ended 30 June 2019 • Decrease in gross profit was mainly derived from the following reasons: 1

(“the Group”) as follow: Q3-2019 Q2-2020 Q3-2020 9M-2019 9M-2020 Change THB Mn THB Mn THB Mn %QoQ %YoY THB Mn THB Mn %YoY Sales of goods and services 1,142.7 1,139.5 1,182.8 3.8% 3.5% 3,399.0 3,438.0 1.1

-2021 6M-2020 6M-2021 Change THB Mn THB Mn THB Mn %QoQ %YoY THB Mn THB Mn %YoY Sales of goods and services 1,139.5 1,214.9 1,284.4 5.7% 12.7% 2,255.2 2,499.3 10.8% Revenue from finance lease under power

(“the Group”) as follow: Q3-2020 Q2-2021 Q3-2021 9M-2020 9M-2021 Change THB Mn THB Mn THB Mn %QoQ %YoY THB Mn THB Mn %YoY Sales of goods and services 1,182.8 1,284.4 1,362.8 6.1% 15.2% 3,438.0 3,862.1

subsidiaries (“the Group”) as follow: Q2-2019 Q1-2020 Q2-2020 6M-2019 6M-2020 Change THB Mn THB Mn THB Mn %QoQ %YoY THB Mn THB Mn %YoY Sales of goods and services 1,145.8 1,115.7 1,139.5 2.1% (0.5%) 2,256.3

to be recognized in 2018. (Unit : Million Baht) 2018 2017 Change % Change Operating revenue 406.54 351.36 55.18 15.70% Operating cost 337.23 293.88 Gross profit 69.31 57.49 11.83 20.58% Gross profit

receivable under finance lease, Financial Performance of the Group 2 Sales and service income for the period ended 31 March 2021 and 2020 are presented below: Sales and service income Q1-2021 Q1-2020 Change

-2022 Balance by Quarter Change Topic Q2-22 Q1-22 Q2-21 Q1-22 VS Q1-22 Q2-22 VS Q2-21 (Million Baht: MB) (MB) % (MB) % Total revenue 1,711.8 1,399.2 2,081.2 312.6 22.3 (369.4) (17.7) Total operating

Change Million Baht % Million Baht % Million Baht % Sales revenue - net 406.55 91.50% 361.42 91.88% (45.13) -12.49 % Revenue from contract works 32.46 7.31% 26.40 6.71% (6.06) -22.96% Revenue from service

/ year 2016 Quarter 3 / year 2017 Change Million Baht % Million Baht % Million Baht % Sales revenue - net 321.11 92.14% 288.17 93.39% -32.94 -10.26% Revenue from contract works 23.25 6.67% 16.90 5.48