. Nevertheless, the Group has expanded testing and inspection service in eastern region since the last quarter of 2016. Gross profit margin for the year rather decreased because service cost for engineer and
supervisors No. SEC. Nor Jor. (Wor) 1/2564 Re: Mutual Recognition of Funds between Hong Kong Special Administrative Region of the People's Republic of China and Thailand We would like to bring your attention to
testing and inspection service in eastern region amounting of 3.87 Million Baht as the Group has expanded the market since the last quarter of 2016. However, service cost for engineer and depreciation has
eastern region increased amounting of 6.70 Million Baht as the Group has expanded the market since the last quarter of 2016. However, service cost for engineer and depreciation has been increased. 6. Other
brokerage, securities dealing or underwriting of investment units All mutual fund supervisors No. SEC. Nor Jor. (Wor) 1/2564 Re: Mutual Recognition of Funds between Hong Kong Special Administrative Region of
supervisors No. SEC. Nor Jor. (Wor) 1/2564 Re: Mutual Recognition of Funds between Hong Kong Special Administrative Region of the People's Republic of China and Thailand We would like to bring your attention to
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