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Consolidated Statements of Comprehensive Income $ in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 TWD ($) $ / shares | Dec. 31, 2019 USD ($) $ / shares | Dec. 31, 2018 TWD ($) $ / shares | Dec. 31, 2017 TWD ($) $ / shares
Statement [LineItems] |  |  |  |
OPERATING REVENUES | $ 413,182,184 | $ 13,814,182 | $ 371,092,421 | $ 290,441,208
OPERATING COSTS | 348,871,391 | 11,664,038 | 309,929,371 | 237,708,937
GROSS PROFIT | 64,310,793 | 2,150,144 | 61,163,050 | 52,732,271
OPERATING EXPENSES |  |  |  |
Selling and marketing expenses | 5,751,168 | 192,282 | 4,933,602 | 3,308,992
General and administrative expenses | 16,637,887 | 556,265 | 14,618,900 | 12,458,054
Research and development expenses | 18,395,334 | 615,023 | 14,962,799 | 11,746,613
Total operating expenses | 40,784,389 | 1,363,570 | 34,515,301 | 27,513,659
OTHER OPERATING INCOME AND EXPENSES, NET | (268,555) | (8,979) | 371,583 | 108,556
PROFIT FROM OPERATIONS | 23,257,849 | 777,595 | 27,019,332 | 25,327,168
NON-OPERATING INCOME AND EXPENSES |  |  |  |
Other income | 1,359,093 | 45,439 | 1,092,558 | 707,754
Other gains, net | 2,683,989 | 89,735 | 7,874,273 | 6,259,453
Finance costs | (4,203,395) | (140,535) | (3,568,241) | (1,799,494)
Share of the profit or loss of associates and joint ventures | 182,275 | 6,094 | (480,244) | 525,782
Total non-operating income and expenses | 21,962 | 733 | 4,918,346 | 5,693,495
PROFIT BEFORE INCOME TAX | 23,279,811 | 778,328 | 31,937,678 | 31,020,663
INCOME TAX EXPENSE | 5,011,246 | 167,544 | 4,513,369 | 6,523,603
PROFIT FOR THE YEAR | 18,268,565 | 610,784 | 27,424,309 | 24,497,060
Items that will not be reclassified subsequently to profit or loss: |  |  |  |
Remeasurement of defined benefit obligation | (365,262) | (12,212) | (308,180) | 205,344
Unrealized loss on equity instruments at fair value through other comprehensive income | (216,121) | (7,226) | (422,441) |
Share of other comprehensive income (loss) of associates and joint ventures | 1,504,760 | 50,310 | (558,217) | 7,249
Income tax relating to items that will not be reclassified subsequently to profit or loss | (3,816) | (128) | 134,853 | (51,217)
Items that will not be reclassified subsequently to profit or loss | 919,561 | 30,744 | (1,153,985) | 161,376
Items that may be reclassified subsequently to profit or loss: |  |  |  |
Exchange differences on translating foreign operations | (5,202,145) | (173,927) | 227,821 | (5,287,734)
Unrealized gain on available-for-sale financial assets |  |  |  | 224,036
Unrealized loss on investments in debt instruments at fair value through other comprehensive income | (2,052) | (69) | (63,076) |
Share of other comprehensive income (loss) of associates and joint ventures | (85,975) | (2,874) | 136,608 | 264,389
Items that may be reclassified subsequently to profit or loss | (5,290,172) | (176,870) | 301,353 | (4,799,309)
Other comprehensive loss for the year, net of income tax | (4,370,611) | (146,126) | (852,632) | (4,637,933)
TOTAL COMPREHENSIVE INCOME FOR THE YEAR | 13,897,954 | 464,658 | 26,571,677 | 19,859,127
PROFIT FOR THE YEAR ATTRIBUTABLE TO: |  |  |  |
Owners of the Company | 17,060,591 | 570,397 | 26,220,721 | 22,819,119
Non-controlling interests | 1,207,974 | 40,387 | 1,203,588 | 1,677,941
PROFIT FOR THE YEAR | 18,268,565 | 610,784 | 27,424,309 | 24,497,060
TOTAL COMPREHENSIVE INCOME FOR THE YEAR ATTRIBUTABLE TO: |  |  |  |
Owners of the Company | 13,122,185 | 438,722 | 25,620,461 | 18,524,067
Non-controlling interests | 775,769 | 25,936 | 951,216 | 1,335,060
TOTAL COMPREHENSIVE INCOME FOR THE YEAR | $ 13,897,954 | $ 464,658 | $ 26,571,677 | $ 19,859,127
EARNINGS PER SHARE |  |  |  |
Basic | (per share) | $ 4.01 | $ 0.13 | $ 6.18 | $ 5.59
Diluted | (per share) | 3.91 | 0.13 | 6.07 | 5.19
American depositary shares [member] |  |  |  |
EARNINGS PER SHARE |  |  |  |
Basic | (per share) | 8.02 | 0.27 | 12.35 | 11.18
Diluted | (per share) | $ 7.82 | $ 0.26 | $ 12.14 | $ 10.38

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