5.79 1,074.58 (7.61) Service income 45.58 50.83 11.52 122.00 140.02 Other income 18.54 20.71 11.68 15.35 (25.88) Total revenues 1,163.59 1,234.62 6.10 1,211.93 (1.84) Cost of sales and services 959.24

Don Mueang Branch incurring high cost compared to revenues. The company closed down the branch at the end of May. This will put an end to such high selling expense. Administrative Expenses (Admin.) Apr

expense due to the cost of business in both domestic land transportation business and hemodialysis solution distribution business for the 9 months period. The company did not have these expenses during 2017

Service 202.07 100.78 101.29 100.51 - Fabrication and Other service 93.22 119.78 (26.56) (22.17) Cost of construction contracts (561.51) (368.25) 193.26 52.48 Gross profit 50.32 46.09 4.22 9.15 Other income

income 12.10 33.79 25.95 19.66 38.05 53.45 EXPENSES (136.22) (135.94) (20.06) (1,227.94) (156.28) (1,363.88) Cost of sales electricity (39.29) (43.80) - - (39.29) (43.80) Cost of sales and services (0.60

119.78 2.53 117.25 4,634.39 Cost of construction contracts (368.25) (333.53) 34.72 10.41 Gross profit 46.09 41.01 5.08 12.38 Other income 2.70 0.27 2.43 910.24 Administrative expenses (21.86) (16.63) 5.23

cost) (meaning total expenses from the standalone financial statements net loss on sales of investment, loss on sales of leasehold right and fuel expense) divided by ASK.

2017 increased 13.38 percent from year 2016, due to higher sale volume, higher raw material cost and expense from major overhaul in the beginning of year 2017. Comparing to 4th quarter, cost of goods

percent from the same period of last year affected by foreign exchange volatility during the Covid-19 pandemic in first quarter that lead to accumulated loss on exchange rate. 2. Cost of goods sold and

. Interest expense projects had been stopped for cost recognition when the first unit was transferred. Please be informed accordingly. Yours truly, (Mr. Surasak Mandaeng) Chief Financial Officer