....................................................................................................................................... 7 Solar energy .................................................................................................................................................... 8 Other income and fixed cost

closed from nationwide restriction. SIM & Device margin was marginally negative at -0.5%, down from +2.7% in 2Q21 due to decline in high margin devices sale. Cost & Expense Cost of service in 3Q21 was

%, compared to +1.2% in 4Q20 due to decline in high margin devices sale from seasonality. Cost & Expense Cost of service for 1Q21 was Bt21,126mn, increasing 3.9%YoY and 3.4%QoQ from network OPEX following 5G/4G

due to 1) sales decrease; 2) higher cost per unit as a result of lower utilization rate; 3) higher depreciation; 4) higher excise tax and sugar tax following the Excise Act, B.E. 2560; 5) sales

/Litre, lowered by 5% YoY, a result from lubricant product’s rising cost compared to their stagnant price, combined with slight dips in retail marketing margin. Marketing margin decreased 1% QoQ, from

lease income 2,567 2,504 (3) 45 2,564 2,549 15 1% Deferred income (expense) tax (87) 22 1 - (86) 22 (108) (491%) Profit (Loss) before the effects of foreign exchange and lease income 2,480 2,526 (2) 45

the new iPhone13 in the previous quarter. However, the sales margin grew from +0.9% in 4Q21 to +1.4% in 1Q22 due to an increased sales mix of higher-margin handsets. Cost & Expense In 1Q22, the cost of

49.34 17.69% Finance cost 49.11 68.10 18.99 38.67% Income tax expenses 48.04 57.52 9.48 19.73% Net profit 181.71 202.58 20.87 11.49% Net profit ratio (ROS) 17.16% 15.74% Earnings per share (Baht) 0.34

% Finance cost 18.41 36.80 18.39 99.89% Income tax expenses 22.21 28.27 6.06 27.29% Net profit 80.50 95.26 14.76 18.34% Net profit ratio (ROS) 18.98% 20.67% Earnings per share (Baht) 0.13 0.16 0.03 23.08

, kitchen utensils and space usage expense of production unit. Major part of cost of sales is raw materials. 2019 vs 201812M 2019 vs 201812M 70 84 271 329 Q4/18 Q4/19 2018 2019 27.6% 29.3% +20% +21% • Selling