vs. total revenue has increased significantly. The main factors behind this unwelcome trend was a jump in fuel (petroleum coke) prices, and increased manufacturing cost of machinery equipment. However

period last year while EBITDA was slightly behind the previous year -5% due to the one shot SG&A costs. Price has generally met expectations and every effort will be Q1 2020 Q1 2019 YoY change YoY % change

2019 which is reduce by 1.55 million baht or reduce by 87.57% the reasons behind the slightly loss in gross margin in Q1, 2020 are lower sales and production of plastic woven bags that create higher cost

cannot generate revenue immediately; some investments are not fully utilized or have not reached an optimal level yet; and some projects are delayed. Thus, costs per unit climbed up at this point; 4

cost of one project affecting a reduction of income of Baht 20.51 million and also the estimation of penalty charge of two projects expected to be delayed affecting a reduction of income of Baht 5.47

Q2/2020. Main reasons were delay to start work of new projects and award schedule was delayed by pandamic issue such as Engineering work in their headquater have been delayed. Additional, main

to control the epidemic situation of COVID–19, causing many customers to change the method of work. As a result, the operation and delivery of the Company's projects were delayed more than usual. In Q2

, the Company delayed sales transaction to several customers in the zones since the Company would like to collect overdue balance from the customers first. Moreover, sales to European countries decreased

Social Security Scheme to whom the Company and the subsidiary provided the medical services compared to that in the previous year and of the Social Security Office’s partially delayed payments to be made

Quarter 1 /2018. The major part was income from transportation revenue, income from voucher unused from customers and compensation from delayed construction. Cost of Sales and Gross Profit Unit : THB mm