be in effect from 1 December 2560 (2017) onwards. Notified this 31st day of October 2017. (Mr. Voravidh Champeeratana) Chairman Securities and Exchange Commission

130 million Baht (99%) effect from high of work volume. Selling and administration expenses amount 30 million Baht increased by 2 million Baht from same period last year. Profit / (Loss) For Q1/2019 the

by 130 million Baht (99%) effect from high of work volume. Selling and administration expenses amount 30 million Baht increased by 2 million Baht from same period last year. Profit / (Loss) For Q1/2019

negative effect from strengthen THB against USD. * Note Please find further information in the consolidated financial statements. 2 Gross profit margin = Gross Profit (Total Sales – Costs of Sales) to Sales

%. Revenue increased from revenue from Sales Baht 171.68 million, increased 13.80 million Baht by 8.73%, it effect still from sales in material product group due to fluctuations in global markets from US and

) Profit attributable to owner of the Company 1,952.31 2,131.87 (179.56) (8.4) The effect of exchange rate - Gain (loss) on foreign exchange - the Company and subsidiaries (223.68) (174.79) (48.89) (28.0

standard in 3rd quarter 2017. 4. The effect from impairment of investment in subsidiaries Bath 4.04 million. This transaction was loss recognize in 3rd quarter 2018 when the liquidation completed. Please be

from the same quarter of last year in the amount of Baht 2.24 million due to the effect from timing difference of taxable income and expenses. Please be informed accordingly. Yours sincerely (Mr. Wichai

of the effect of the pandemic of COVID-19 virus. Net Profit (Loss) of Company’s operation Net Profit (Loss) of the group of the Company’s operation for the quarter ended March 31, 2020 comparing with

million decreased from Baht 289.69 million in the year 2019 or decreased by 6.03%. Revenue decreased from revenue from Sales Baht 160.41 million, decreased 11.45 million Baht by 6.66%, it effect still from