are presented below: Cost of sales and service Q2-2022 Q1-2023 Q2-2023 Change 6M-2022 6M-2023 Change THB Mn THB Mn THB Mn %QoQ %YoY THB Mn THB Mn %YoY Fuel materials cost 811.4 905.5 808.3 (10.7%) (0.4
service income and the trading income which was recognized for the first time in year 2018. 9 Months 9 Months 2018 2017 Change % Change Revenue 1,233.10 1,111.90 121.20 11% Cost 1,117.51 941.45 Gross profit
of Baht 7,475.35 million, representing 96.07% of total revenues, an increase of 1.16% or Baht 85.61 million from last year. Cost of construction services and sales of construction materials In Q1 2019
Project Management, Supply and Installation of the M&E Systems for the MRT Blue Line Extension Project at the project inception. Cost of construction services and sales of construction materials The Company
23.63% or Baht 6,863.03 million from the same period of the prior year. Construction revenue decreased because Xayaburi Hydroelectric Power Project is now close to project completion. Cost of construction
period. Cost of construction services and sales of construction materials The Company and its subsidiaries registered cost of construction services and sales of construction materials amounting to Baht
of the plant and machineries from an independent engineering expert. The effect of such change in the estimated useful lives of assets to the depreciation charge during the quarter is as below; Unit
: Million Baht) 2018 2017 Change Change (%) Cost of real estate sold 1,926 2,227 (301) (14) Cost of rentals and services 205 196 9 5 Total cost of sales 2,131 2,423 (292) (12) Total cost of sales in the first
2018 Change Change (%) Cost of real estate sold 6,180 9,519 (3,339) (35) Cost of hotel business 761 637 124 19 Cost of rental office building business 142 178 (36) (20) Total cost of sales 7,083 10,334
estimation of cost causing loss in such project due to various factors i.e. change of materials suppliers causing higher cost, extension of contract causing higher fixed cost as well as its underestimate cost