decrease was derived from the engineering service. • Overall gross profit margin increased from 11.9% to 13.8% at the same amount Baht 53 million. 2020 2019 Revenue 382 443 (61) -14% Cost 329 390 Gross

Public Company Limited and its subsidiaries had the operation results for the 3-month period ended 31 March 2020 with the following details: unit: THB million 2020 2019 Change (THB mill.) Change

Power Plant 3.2 3.0 2.8 (6.7%) (12.5%) 6.2 5.8 (6.5%) Gross Profit by Segment 421.6 350.0 398.2 13.8% (5.6%) 887.7 748.2 (15.7%) Gross Profit Margin Quarter 2 Quarter 1 Quarter 2 Change 6-month 6-month

ended 30 June 2018 (2nd quarter of 2018) as follows: Unit :Million Baht Q2/17 Q1/18 Q2/18 Change +/(-) QoQ % YoY % Net Revenue 201.20 206.12 251.20 45.08 21.87 50.00 24.85 Cost of Goods Sold 183.37 180.77

Three Month period ended 30 June 2018 (2nd quarter of 2018) as follows: Unit :Million Baht Q2/17 Q1/18 Q2/18 Change +/(-) QoQ % YoY % Net Revenue 201.20 206.12 251.20 45.08 21.87 50.00 24.85 Cost of Goods

its subsidiary for the first quarter ended 31 March 2019 which the details are as follows: Unit: million Baht For 3-month period (Jan-Mar) 2019 2018 Change % Increase (Decrease) Revenue from sale of

THB 13.4 million or 10.9% and gross profit margin to total revenues was at 15.4%. The Group reported total net profit for the year 2018 at THB 20.6 million, decreased by THB 29.8 million or 59.1% when

-31.00 Net Profit Margin 6.86 1.86 -1.28 -3.14 -168.82 -8.14 -118.66 56.36 16.87 -39.49 -70.07 Unit : Million Baht Q4/59 Q3/60 Q4/60 Change +/(-) 12M/59 12M/60 Change +/(-) 1. The total revenue of Q4/17

-5.67 -31.00 Net Profit Margin 15.29 1.70 -1.28 -2.98 -175.29 -16.57 -108.37 56.05 16.87 -39.18 -69.90 Unit : Million Baht Q4/59 Q3/60 Q4/60 Change +/(-) 12M/59 12M/60 Change +/(-) 1. Net sales of Q4/17

quarter of 2020 ended March 31 , 2020 , the change was more than 20% compared to the results of the same period of the previous year, with the total revenue of 25.64 million. Baht has a net loss of 23.47