decrease in revenue of Q3-2017 due to the increase in doubtful debt in Q4-2017. As the result, the profit of the Q4-2017 was decreased. Comparing to the profit of the Q4-2017 and the Q4-2016, it found that

development expenses. For the year 2018, SAAM Group presented gross profit of THB 50.94 million, representing gross profit margin of 71.22%, a THB 0.41 million or 0.57% decrease from the previous year (2017

. This was due to revenue from sales was increased slightly and a decrease in unit price. In addition, the increase in cost of sales and erection’s cost was affected to decrease in gross profit. (5

margin decreased from the previous year mainly due to a decrease in gross profit from services and development business from additional related costs in developing renewable energy business overseas in

result of the decrease in gross profit and expenses of new accounting standard adoption as mentioned above; however, the Company is still able to control service and administrative expenses and decrease

Company has more advertising in various media in order to publicize and promote the content, resulting in a decrease in net profit ratio (ROS) from 16.24% in 2017 to 16.00% in 2018. The total expense to

the business since 2017 and the fact that the Thai Baht value appreciated against US Dollar, the Company had loss on exchange rate, resulting in a decrease in net profit ratio (ROS) from 19.92% in the

profit was down, caused by more unplanned outage than the previous year. Banpong: Unit : Million Baht 2017 2016 Change Increase (Decrease) Amount % Electricity revenue 1,149 - 1,149 100% Other income

decrease in net profit ratio (ROS) from 17.16% in the nine-month period of 2018 to 15.74% in the same period of 2019. The total expense to total revenue ratio increased from 13.55% in the nine-month period

exchange rate, resulting in a decrease in net profit ratio (ROS) from 16.00% in 2018 to 14.78% in 2019. The total expense to total revenue ratio increased from 13.32% in 2018 to 17.46% in 2019. 1. Overview