percentage of sales, gross profit margin improved from 7.2% in Q1 2018 to 8.9% in Q1 2019, driven by cost reduction measures and improved efficiency and increases of gross profit from tooling sales in Q1 2019

million or equivalent to 45.23% and gross profit margin from sales was 22.70%. Reversal of Allowance for Doubtful Accounts In the 2nd quarter of 2019, the Company reversed allowance for doubtful accounts

date of investment in January 2019. The proportion of revenue from sales increased by Baht 39.26 million or equivalent to 45.23% and gross profit margin from sales was 22.70%. Reversal of Allowance for

total revenue in this quarter was from project The Diplomat 39 which was a low profit-margin generating project. The Company took over it as a complete-built project when revenue was ready to be

lower average selling price due to fewer big projects & price competition, and then lower gross profit margin. 5. Cost from the water management business for the quarter 1/2018 was 77.82% of income in 1.2

main customers in Saudi Arabia. Sales from South Africa zone increased by Baht 11 million from main customers in Peru and Chili. Gross profit margin decreased 9% and Net profit decreased 22%, main reason

115.58 million, the decrease from the same period of previous year by Baht 0.92 million or 0.79 percent, due to the decrease in gross profit margin of 0.09 percent and increase in selling and

previous year. Gross profit for the first six months of 2018 was Baht 1,179.40 million, a decrease by Baht 422 million or 26.35% from the same period of last year; however, gross profit margin essentially

selling price due to fewer big projects & price competition while the prices of plastic raisin rose, and then caused lower gross profit margin. 4. Cost from the water management business for the quarter 3

period of last year; however, gross profit margin improved from 7.88% in 9M 2017 to 7.99% in 9M 2018. 2 Other income The Company and its subsidiaries had other income of Baht 1,290.68 million, increased by