-35.92 -49.26 Cost of constuction 31.40 63.28 -31.88 -50.38 Cost of services 0.00 3.79 -3.79 -100.00 Administrative expenses 24.98 13.12 11.86 90.40 Finance cost 2.60 3.48 -0.88 -25.29 58.98 83.67 -24.69
with Diamond Brand”, as well as effective cost management having maintained good gross profit margin and increased net profit in 2020. (2) Analysis of Operating Results and Profitability (2.1) Revenues
% Electricity revenue - Availability Payment (AP) - Energy Payment (EP) 2,068 1,062 2,213 2,046 (145) (984) (7%) (48%) Other income 19 27 (8) (30%) Total revenues 3,149 4,286 (1,137) (27%) Cost of sale (1,857
: MB) (MB) % (MB) % Revenue from sales and service 1,417.3 2,017.5 2,179.9 (600.2) (29.7) (762.6) (35.0) Rental income from equipment for lease 58.1 34.3 34.0 23.8 69.4 24.1 70.9 Cost of sales and
% yoy, +6% qoq) and non- mobile enterprise business grew 13% yoy. We continued on with cost optimization while expanding 5G network which resulted in controlled cost of service (+3% yoy, -0.5% qoq) and
forced to close stores Q1 2020 2019 YoY% 2019 QoQ% Revenue from sales 672.4 769.9 -12.7% 803.3 -16.3% Revenue from service - 0.2 - Total revenue from sales & service 672.4 770.1 -12.7% 803.3 -16.3% Cost of
services revenue 41.68 43.82 (2.13) (4.87%) Construction revenue under Concession Agreements1) 60.64 55.33 5.32 9.61% Costs of Sales and Services 619.77 557.14 62.63 11.24% Raw water cost 291.60 247.94 43.67
11.86% Finance cost 19.72 18.41 (1.31) (6.64%) Income tax expenses 17.98 22.21 4.23 23.53% Net profit 70.57 80.50 9.93 14.07% Net profit ratio (ROS) 20.41% 18.98% Earnings per share (Baht) 0.13 0.15 0.02
% Finance cost 35.09 41.36 6.27 17.87% Income tax expenses 37.04 42.24 5.20 14.04% Net profit 139.02 150.12 11.10 7.98% Net profit ratio (ROS) 19.92% 17.25% Earnings per share (Baht) 0.26 0.28 0.02 6.92
212.73 (3.48) (1.64) Cost of construction contracts (521.09) (492.00) 29.09 5.91 (1,082.60) (860.25) 222.35 25.85 Gross profit 42.58 48.31 (5.73) (11.86) 92.89 94.41 (1.52) (1.61) Other income 0.73 0.15