11.93 29.77 (17.84) (59.93) Gross Profit Margin (%) 25.43 26.46 Net Profit Margin (%) 5.27 11.72 Remark: 1) Net profit margin is calculated from the net profit attributable to equity holders of the parent

50.28 25.89% Gross profit margin 15.47% 13.76% Other income 5.33 4.73 Selling expenses 3.36 9.99 (6.63) -66.39% Administrative expenses 111.43 108.51 2.92 2.69% Earnings before interest and tax 135.08

taxation 233,778 (45,408) 615% 11,621 61,038 -81% Margin 27% -7% 4% 13% Profit / (Loss) for the period 191,233 (113,896) 268% (12,024) 31,706 -138% Margin 22% -17% -4% 7% Portion of the Companies

challenges associated with COVID-19, OSP delivered Q2’20 Net profit* at THB 804 million, +13.2% YoY with net profit* margin of 13.6%, +230 bps YoY. 1H’20 Net profit* was at THB 1,730 million, +8.2% YoY, with

% of net profit margin comparing with Q2 2016. Apart from the additional costs of SBT’s impairment, the increment of gross and net profit was mostly caused by the improvement of products’ spread margin

MTHB or 4.8% of net profit margin comparing with Q3 2016. Apart from the additional costs of SBT’s liquidation, the increment of gross and net profit was mostly caused by the improvement of products

ratio of cost contract work to revenue from contract work was 86.78%, or a gross profit margin of 13.22%. While the first quarter of 2018, the cost of contract work was 237.73 million Baht which was 97.10

cost contract work to revenue from contract work was 86.78%, or a gross profit margin of 13.22%. While the first quarter of 2018, the cost of contract work was 237.73 million Baht which was 97.10% of

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