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

Company’s cost of goods sold was Bt. 23,811.03 million or 96.83% of sale revenues which decreased from 94.80% in year 2017, and the gross margin decreased from 5.20% in 2017 to 3.17% in 2018. The decrease of

improvement was mostly a result of lower prices of raw materials this year and improvement of production reliability. Financial Ratios Q3 2019 Q3 2018 Gross profit margin 28.6% 20.2% Net profit margin 22.0

margin 25.3% 18.1% Net profit margin 17.6% 11.9% Debt to Equity ratio 0.17 0.10 Earnings per share 0.66 0.46 ROA 13.1% 11.0% ROE 14.0% 10.9% Gross profit margin = Gross Profit (Total Sales – Costs of Sales

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

No. WHAUP-CS014-2562 1 8 August 2019 Re Share Acquisition in Duong River Surface Water Plant JSC in Vietnam Dear President The Stock Exchange of Thailand WHA Utilities and Power Public Company

are located on and/or fixed on the exterior or in the interior of the area of the buildings and structures of CentralFestival Pattaya Beach shopping mall or on the surface of the buildings and

in the gross profit margin that expanded from 15.3% in the third quarter of 2018 to 16.4% in the third quarter of 2019 and more efficient cost management that caused selling and administrative expense

THB 40.7 million or 24.9% and gross profit margin to total revenues was at 15.0%. The Group reported total net profit for the year 2017 at THB 50.4 million, decreased by THB 32.9 million or 39.5% when