2023. Core operating profit (defined as Earnings before Interests and Taxes exclude interest income, gain (loss) on exchange rate and other irregular items) reached Baht 618.2 million in Q3 2023; a 5.6

reversal of deferred tax assets. Financial Ratios Q2 2020 Q2 2019 Gross profit margin 18.9% 20.7% Net profit margin 8.5% 14.3% Debt to Equity ratio 0.18 0.10 Earnings per share 0.26 0.57 ROA 6.1% 12.2% ROE

: The Company had profit for the 2nd quarter ended June 30, 2020 in the amount of Baht 6.83 million (earnings per share of Baht 0.68), compared to the same quarter of last year which had profit of Baht

profit of Baht 6 million; an increase of Baht 68 million in term of profit compared to Q2/2019, which has a net loss of Baht 62 million. According to the declining of contract revenue, most major projects

and Baht 15,302.6 million. Increased by Baht 256.3 million or 1.7% from increase in net profit resulting to increase in unappropriated retained earnings. Please be informed accordingly, Yours sincerely

170.45 142.90 27.54 Gross profit margin 15.33% 13.51% 1.82% Other income 4.77 3.67 1.09 Selling expenses 2.66 4.73 (2.07) Administrative expenses 80.76 84.95 (4.19) Earnings before interest and tax 91.79

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

0.06 -6.81 -3.63 Gross Margin 28.25 10.73 25.35 14.62 136.25 -2.90 -10.27 Admin Expenses 10.85 11.10 33.92 22.82 205.59 23.07 212.63 Selling Expenses 3.84 3.36 9.18 5.82 173.21 5.34 139.06 Net Profit

Profit /(Loss) 12.63 -0.97 -19.08 -18.10 1,862.55 -31.71 -251.05 Gross Profit Margin (%) 13.09 5.61 12.30 6.69 119.37 -0.79 -6.04 Unit : Million Baht Q1/17 Q4/17 Q1/18 Change +/(-) QoQ % YoY % Current

2,097.62 1,600.35 Selling & Administrative Expense 127.83 116.99 Finance Costs 24.24 22.96 Net Profit 101.40 (18.95) Earnings per share (Baht) 0.25 (0.047) The company will explain the cause of change as