2018 gross profit margin was mainly driven by the adoption of economies of scale and efficient control of production cost. 2. Selling expenses In year 2018, the Company incurred selling expenses of Baht

percent with gross profit margin of 35.5 percent (35.9 percent in Q1/2018). The increase of gross profit was the result of low overhead cost due to high production volume and Sales increasing.  Sales

economies of scale and efficient control of production cost. 3. Selling expenses In Q3/2018, the Company incurred selling expenses of Baht 5.99 million, rising year-on-year by Baht 2.04 million or 51.65

Baht 96.16 million from first-time adoption of TFRS 16 Leases. For trade accounts receivable, the Company set up additional allowance for doubtful accounts of Baht 9.25 million from first-time adoption

equivalent to 60.9% of total sales, lower than Q2’2016, which had total cost of sales 62.7% of total sales due to efficient cost management and higher cost efficiency from better utilization of production

in the amount of 15.97 million baht or 5.47 percent as a result of the company adjusting the marketing policy to expand the market share by adjusting the sales price decreased And increased trade

81.93 million of 1st quarter of year 2018. Sales and administrative expenses (Special entry) was Baht 18.59 million result from compensation for loss of production cost which increased comparing to the

for loss of production cost which increased comparing to the compensation of Baht 8.19 million of 2nd quarter of year 2018. DEMCO Public Company Limited Details of the costs involving to the WTGs

from compensation for loss of production cost which increased comparing to the compensation of Baht 18.18 million of 3rd quarter of year 2018. DEMCO Public Company Limited Details of the costs involving

production capacity to be in line with a slowdown in inventory turnover from sales revenue setbacks. This reduction in production capacity is expected to affect fixed cost allocation and marginally increase