%) 100.00% 148.40% Cost of sales (34.89 ) (48.06 ) 13.17 (27.41%) (76.73%) (105.71%) Gross Profit 10.58 19.41 (8.83 ) (45.50%) 23.27% 28.77% Other income 3.02 2.78 0.24 8.53% 6.64% 4.12% Distribution costs

total expenses of 646.45 Million Baht as 174.24 Million Baht decreased from year 2019 which has total expense of 820.69 Million Baht or 21.23 percent by following reasons:  Cost of sales products of

Description Amount % Amount % More (Less) Amount % Average Capacity Utilization 76.47% 75.41% 1.06% Revenue from sales 371,293 100.0% 380,912 100.0% (9,619) (2.5%) Cost of sales (292,720) (78.8%) (319,235

685.84 21.11 3.1% Cost of sales -194.96 -208.31 13.35 -6.4% -617.06 -601.34 -15.72 2.6% Gross profit 30.01 25.36 4.65 18.3% 89.89 84.50 5.39 6.4% Other income 1.45 1.26 0.19 15.2% 3.61 5.15 -1.54 -29.9

159.78 (42.39) (26.53) 87.16 96.05 Cost of sales (88.33) (119.80) 31.47 (26.27) (75.24) (74.98) Gross Profit 29.06 39.98 (10.92) (27.31) 11.91 21.07 Other income 17.30 6.57 10.73 163.32 12.84 3.95

Revenues from sales Revenues from sales 56.46 72.01 (15.55 ) (0.22 ) Other income 1.66 1.96 (0.30 ) (0.15 ) Total Revenue 58.12 73.97 (15.85 ) (0.21 ) Expenses Cost of sales 37.80 64.34 (26.54 ) (0.41

/ (decrease) %change Revenues from sales and Service income 217.59 157.19 60.40 38.42% Other revenues 2.37 0.18 2.19 1,216.67% Total revenues 219.96 157.37 62.59 39.77% Cost of sales and Service income 109.51

mobile business and cost control In 1Q21, core service revenue was Bt32,425mn, decreasing -2%YoY but increasing 1%QoQ from rebounded mobile revenue and robust growth in fixed broadband. Continuous 5G/4G

construction under a concession arrangement 131.3 398.1 215.0 126.1 (88.9) (41.3%) 104.6 870.5 765.9 732.2% Cost of sales and services (788.7) (796.3) (822.9) (788.4) (34.5) (4.2%) (3,324.7) (3,196.3) (128.4

project including operation when the project is operational. Later, the Company has negotiated on terms and conditions. In case to complete the project, PP1 and PP3 inject additional construction cost in