Company has a gross margin for the year 2018 in total of 1,729.9 million Baht or equal to 30.5 percent of the sales revenue. This was due to the fact that the Company recognized costs of production, such as

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

the same period of the previous year. The decrease was a result of the extra revenue from additional construction work of Xayaburi project recognized in Q2 2016. However, the gross profit margin for the

service Revenue from engineering service increased by Baht 104.62 million, due to following reasons: 1. Engineering business has entered into construction service 2. Revenue recognized from large project of

, or 224.88%, in Q3’19; and increased by Baht 12.11 million, or 42.72%, in the nine-month period. This resulted from the recognized share of loss from the investment in the associate companies that

separately from revenue from sales (financing component separation) at the amount of Baht 22.47 million and then gradually recognized as revenue for each period until maturity date. 3. Selling and

considered a post-employment benefits plan amendment. The effect of the change is recognized past service costs as expenses in the income statement . The Company and its subsidiaries recognize the increase in

Q2’19; and decreased by Baht 16.82 million, or 40.82%, in the six-month period. This resulted from the recognized share of loss from the investment in the associate companies that decreased by Baht 13.38

from cost reduction of employee cost and office supplies. Non-Recurring Item In Q2’2018, the company recognized insurance claim revenue for business interruption due to the fire incident on November 27

of Baht 15.91 million from annual salary adjustment. The Company also recognized loss from foreign exchange rate more at the amount Baht 12.04 million when compared to the same quarter of 2017. 3.5