utilization, which was partially offset by a lower cost of the copper (Table 2). Furthermore, as the majority of factory burden costs are fixed, whereas total production volume decreased, which resulted in a

baht from the previous quarter. Administrative and Selling Expenses Selling, general, and administrative expense amounted to Bt421.8 million in 3Q19, or 13.7% of sales, a decrease from Bt463.7 million in

to the increase in the cost of services of Baht 19.40 million and increase in transportation cost of Baht 2.67 million. (2.3) Selling and Administrative Expenses Description Year 2019 Year 2018

expenses 3,757.13 2,934.63 28.03 1,169.12 16.75 32.90 Doubtful accounts 134.62 (162.19) (183.00) (75.02) (181.40) (172.95) Operating profit before income tax expenses 6,212.04 5,209.30 19.25 1,328.01 47.44

December 31, CONSOLIDATED Change (BAHT'000) 2017 2016 Amount % Interest income 14,844,465 14,869,138 (24,673) (0.2) Interest expenses 4,216,027 4,436,088 (220,061) (5.0) Interest income, net 10,628,438

year ended December 31, CONSOLIDATED Change (BAHT'000) 2017 2016 Amount % Interest income 14,844,465 14,869,138 (24,673) (0.2) Interest expenses 4,216,027 4,436,088 (220,061) (5.0) Interest income, net

4,125 4,059 66 1.6 Cost of service 2,451 2,362 89 3.8 Selling and administrative expenses 312 296 16 5.4 Finance cost 305 482 (177) -36.7 Interest expense from the MRT Purple Line Project 99 112 (13

mentioned above. • Selling expenses Selling expenses reduced from last year quarter by 12% mainly due to sale volume reduced by 7% and average delivery expenses cost per ton reduced by 5% due to reduction in

762.6 340.3 422.3 124.1 Administrative expenses (88.0) (102.8) (14.8) (14.4) Finance costs (26.3) (109.8) (83.5) (76.0) Profit before income tax 648.3 127.7 520.6 407.7 Tax income (expense) (54.8) 4.9

Administrative expenses 19,894,925 40,087,363 38,857,317 Net foreign exchange loss - - 32,502 Total expenses 23,346,650 128,259,620 242,525,064 Profit (loss) before finance costs and income tax (7,286,689