of the parent 114.60 130.21 (15.61) (11.99) Gross Profit Margin (%) 26.58 27.86 Net Profit Margin (%) 11.04 12.65 Remark: 1) Net profit margin is calculated from the net profit attributable to equity

contract revenue was 85.43%, or a gross profit margin of 14.57%. While in year of 2018, the cost of contract was 767.93 million Baht which was 95.04% of contract revenue, or a gross profit margin of 4.96

same period of the last year which showed 14.47 million Baht, which was mainly caused by COVID-19 situation. Cost of Goods Sold/service and Gross Profit Margin The company recorded cost of goods sold of

by 2.91 million Baht or 17.11% from the same period of the last year which showed 17.01 million Baht, which was mainly caused by COVID-19 situation. Cost of Goods Sold/service and Gross Profit Margin

Profit - attributable to equity holders of the parent 14.56 24.26 (9.70) (39.98) Gross Profit Margin (%) 24.51 27.10 Net Profit Margin (%) 6.70 9.88 Unit: million Baht For 6-month period (Jan-Jun) 2020

- attributable to equity holders of the parent 24.15 30.57 (6.42) (21.00) Gross Profit Margin (%) 25.20 30.30 Net Profit Margin (%) 9.60 12.30 Unit: million Baht For 9-month period (Jan-Sep) 2019 2018 Change

- attributable to equity holders of the parent 24.26 41.84 (17.58) (42.02) Gross Profit Margin (%) 27.10 31.79 Net Profit Margin (%) 9.88 16.42 Unit: million Baht For 6-month period (Jan-Jun) 2019 2018 Change

the increase in the gross profit margin that expanded from 14.5% in the second quarter of 2018 to 16.5% in the second quarter of 2019 and more efficient cost management that caused selling and

was 42.95 million Baht which had a Gross Profit Margin of 25.42%, decreasing from the same period of previous year which had a Gross Profit Margin of 27.72%. This decrease in Gross Profit Margin was

% 116.70 100.00% -29.59 -20.22% Gross Profit / Margin 43.91 30.02% 31.00 26.56% Net Profit / Margin 15.68 10.72% 5.30 4.54% Revenue from sales and services The Company’s sales and services revenue is reduced