for loss of production cost which increased comparing to the compensation of Baht 8.19 million of 2nd quarter of year 2018. DEMCO Public Company Limited Details of the costs involving to the WTGs

. Details of the costs involving to the WTGs foundation improvement for Huay Bong 2&3 Wind Farm as at March 31, 2018 are as shown in the table. Description Estimated total improvement cost (as of year 2017

 are as shown in the table.  D       Description  Estimated  total  improvement  cost  (as of year  2017)  Estimate  and cost  for  accounting  recorded  In Q1‐Q2 2018  Estimated  total  improvement

from compensation for loss of production cost which increased comparing to the compensation of Baht 18.18 million of 3rd quarter of year 2018. DEMCO Public Company Limited Details of the costs involving

efficiency through improvements in gross margin rates, as well as continuing to focus on cost efficiency For stores expansion in the second quarter, the company opened 1 new store of HomePro at Charansanitwong

slightly better performance in Hotel Business. A decrease in cost of sales and services, and an increase in SG&A and employee benefit expenses linked with the closure plan of Dusit Thani Bangkok Hotel, was

) 2022 2023 Increase (Decrease) %YoYAmount % Amount % Revenue from sales and services 14,388.23 99.95% 13,518.71 99.96% (869.53) (6.04%) Cost of sales and services 13,159.06 91.41% 12,337.37 91.22% (821.69

amount of 808.01 million Baht, decrease of 32.27% from year 2017 which had revenue from contact work amount of 1,193.03 million Baht due to investment slowdown of most projects in the market. 2. Cost of

. 2. The Cost of sales and services of the Company increases THB 132.13 million or 400.57% due from following reasons; Page 2 of 2 2.1) Cost of selling of fan increase THB 31.94 million due to the

loss of revenue recognition from design engineering. 2. Cost of contract work In the first quarter of 2019, the Company and its subsidiaries had cost of contract work amount of 120.28 million Baht, the