31 March 2018 and 2019, the Group’s other income grew from THB 5.4 Mn to THB 6.3 Mn respectively, an increase of THB 1.0 Mn or 17.9%. This increase was mainly due to higher membership fee income. Cost
items. 1.2 Expenses 1.2.1 Cost of services In Q1/2020, Cost of services was of Bt424.5 million, increased of Bt36.8 million or 9.5%(y-o-y), which was an increase of 1) depreciation and amortization of
Table 1: Overall Financial Performance Unit: million baht Jan-Sep 2018 % Jan-Sep 2019 % Change % YoY Revenue 380.50 100.0% 440.78 100.0% 60.28 15.8% Cost 217.33 57.1% 238.03 54.0% 20.70 9.5% Gross Profit
Installation 3.49 7.92 (4.43) (55.93%) 3 - Construction 1,079.05 645.15 433.90 67.26% 4 - Testing and Inspection 57.22 61.43 (4.21) (6.85%) 5 Cost of sales and services (1,734.66) (1,473.90) 260.76 17.69% Gross
1: Overall Financial Performance Unit: mb Q1 18 % Q1 19 % Change % YoY Revenue 131.45 100.0% 132.54 100.0% 1.09 0.8% Cost 75.00 57.1% 73.41 55.4% (1.59) (2.1%) Gross Profit 56.45 42.9% 59.13 44.6
goods 164.02 156.54 7.48 4.78 Revenue from project works and services 79.26 97.04 (17.78) (18.32) Total Revenue from Sale and Services 243.28 253.58 (10.30) (4.06) Cost of sales of goods 116.61 105.19
- Construction 377.21 156.37 220.84 141.23% 4 - Testing and Inspection 14.60 10.42 4.18 40.12% 5 Cost of sales and services (524.43) (327.53) (196.90) 60.12% Gross Profit 58.50 33.62 24.88 74.00% Other income 2.77
) (21.64) Revenue from project works and services 87.05 79.26 7.79 9.83 Total Revenue from Sale and Services 215.57 243.28 (27.71) (11.39) Cost of sales of goods 92.48 116.61 (24.13) (20.69) Cost of project
sale of goods 179.08 170.35 8.73 5.12 Revenue from project works and services 70.44 75.71 (5.27) (6.96) Total Revenue from Sale and Services 249.52 246.06 3.46 1.41 Cost of sales of goods 127.52 115.75
(Deficit) Unappropriated 363.61 426.45 491.34 Total Shareholders’ Equity 463.61 526.45 591.34 Income Statement Revenue from Sale of Goods and Rendering of Services 466.56 568.04 618.45 Cost of Sale of Goods