segment. IV Expense First quarter (Unit: Million Baht) 2020 2019 Change Change (%) Selling expenses 92 171 (79) (46) Administrative expenses 381 408 (27) (7) Finance cost 100 99 1 1 Income tax expenses 45
110.47 64.81 (45.67) -41.34% Cost of rendering of services (76.99) (51.03) 25.97 -33.73% Gross profit 33.48 13.78 (19.70) -58.84% Other income 0.60 0.30 (0.29) -49.55% Services expenses (1.29) (1.20) 0.09
performance as follows: 1. The ratio of cost of sales to the sales income increased 9.05 percent and the selling and administrative expenses increased by 18.5 percent compare with the same period last year
qualified opinion in relation to the construction cost reports for construction contracts not prepared in accordance with its accounting policy. Besides, the accounting system and internal controls regarding
(especially China), causing The competition is very high in term of price while the economy is in recession and the company is still losing money from the exchange rate compared to the US dollar (the company's
derived from the management service income and the trading income which was recognized for the first time in year 2018. 2018 2017 Change % Change Revenue 1,672.58 1,580.25 92.32 6% Cost 1,509.05 1,335.73
20,289.88 29,668.73 (9,378.85) (31.61) Other income 741.35 365.86 375.49 102.63 Total revenues 21,031.23 30,034.59 (9,003.36) (29.98) Cost of construction services and sales of construction materials
% 38.0 129.4% Total revenues from sales and services 156.3 100.0% 165.1 100.0% 8.9 5.7% Cost of Rental 115.2 73.7% 8.7 5.3% -106.5 -92.5% Cost of Sales 19.8 12.7% 45.0 27.2% 25.1 126.7% Total cost of sales
total cost of sale respectively. An increasing in cost-of-sale was derived from the rise of average steel-coil price, which the average steel-coil price is in the upward trend since 2016. ZIGA INNOVATION