Expenses The income tax expense of the Group in 3Q2019 was THB 79. 30 million, increased by THB 14. 91 million or 23.15% up from 3Q2018 mainly from higher deferred tax expenses. Income tax expense for 9M2019

Change THB Mn THB Mn THB Mn %QoQ %YoY THB Mn THB Mn %YoY Tax income (expense) (1.1) 14.6 (9.0) N.A. (

% . This is because in 2023, the Company's income tax expenses increased significantly since the Company did not record allowances for expected credit losses from related receivables as deferred tax assets

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

Social Security Scheme to whom the Company and the subsidiary provided the medical services compared to that in the previous year and of the Social Security Office’s partially delayed payments to be made

Quarter 1 /2018. The major part was income from transportation revenue, income from voucher unused from customers and compensation from delayed construction. Cost of Sales and Gross Profit Unit : THB mm

construction projects that are being completed. In some projects, the owners have delayed in the work area handover which prohibit the work. The construction area handover is expected to commence and the work

East zones by Baht 121 million or increased by 31%. In prior year, these zones are facing economic problems. Therefore, during last year, the company delayed sales transaction to several customers in the

previous year. This was mainly due to the decreased in export sales to the Middle East and African zone as these zones are facing economic problems. Therefore, the Company delayed sales transaction to