Profit 134.81 91.09 48.00% Net Profit 33.82 12.10 179.50% Statement of comprehensive income for the three month periods ended (Unit: Million Baht) Quarter 1/2021 % Quarter 1/2020 % QoQ (%) Sales 1,371.05
148.64 154.11 148.23 5.88 3.97 Profit before share loss from investment in joint venture and income tax 19.89 21.82 17.21 22.22 (5.01) (22.55) Share of loss from investment in joint venture (1.00) (0.86
5.52 14.57 Profit before share loss from investment in joint venture and income tax 2.90 2.83 2.87 2.60 0.27 10.54 Share of loss from investment in joint venture - (1.53) - - - - Profit before income tax
(4.72) Gross Profit 49,306 48,521 785 1.62 Reversal of allowance for doubtful accounts 6,167 4,687 1,480 31.58 Other income 1,266 5,417 (4,151) (76.63) Profit before Expenses 56,739 58,625 (1,886) (3.22
3.11 8.87 Profit before share loss from investment in joint venture and income tax 1.48 2.17 1.29 2.34 (1.05) (44.87) Share of loss from investment in joint venture 0.00 (0.52) 0.00 0.00 0.00 N/A Profit
% Operating profit 13.71 45.77 95.81 598.83% 109.33% 84.58 141.58 67.39% Net foreign exchange gain/(loss) (0.16) 1.66 (1.41) 781.25% -184.94% (0.51) 0.25 -149.02% Other income 1.22 1.69 0.77 -36.89% -54.44
water management business 38.34 9.35 310.05 Selling expenses 13.57 16.52 (17.86) Administrative expenses 20.88 17.30 20.69 Finance cost 6.65 4.55 46.15 Profit before income tax income (expenses) 9.41
investment in joint venture and income tax 12.38 19.89 9.38 17.21 (7.83) (45.50) Share of loss from investment in joint venture 0.00 (1.00) 0.00 0.00 0.00 N/A Profit before income tax 12.38 18.89 9.38 17.21
(29,149) (27,835) 1,314 (4.72) Gross Profit 49,306 48,521 785 1.62 Reversal of allowance for doubtful accounts 6,167 4,687 1,480 31.58 Other income 1,266 5,417 (4,151) (76.63) Profit before Expenses 56,739
other income. Net profit margin was at 4.2% . Revenues The structure of revenues for the year ended 31 December 2019 and 2018 are as follows; Unit: THB million Y2019 Y2018 % Change 1. Revenue from sales