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v3.23.1

Operating Segments Information - Summary of Segment Information (Detail) $ in Thousands, $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 TWD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 TWD ($) | Dec. 31, 2020 TWD ($) | Dec. 31, 2022 USD ($)
Disclosure of operating segments [line items] |  |  |  |  |
Operating revenue | $ 670,872,643 | $ 21,831,196 | $ 569,997,133 | $ 476,978,710 |
Interest income | 654,747 | 21,306 | 542,329 | 520,783 |
Interest expense | (3,989,134) | (129,812) | (2,798,935) | (3,437,228) |
Depreciation and amortization | (55,451,889) | (1,804,487) | (54,524,277) | (51,259,065) |
Share of the profit or loss of associates and joint ventures | 1,185,377 | 38,574 | 899,700 | 547,612 |
Impairment loss | (388,775) | (12,652) | (126,766) | (992,273) |
Segment profit before income tax | 81,763,628 | 2,660,711 | 80,193,769 | 35,768,798 |
Expenditures for segment assets | 75,800,574 | 2,466,664 | 74,417,541 | 59,024,201 |
Investments accounted for using the equity method | 14,679,346 |  | 16,996,600 | 12,806,673 | $ 477,688
Contract assets | 5,731,173 |  | 5,607,209 | 4,782,904 | 186,501
Packaging segment [member] |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
Operating revenue | 303,947,502 | 9,890,905 | 272,543,899 | 218,666,071 |
Interest income | 109,148 | 3,551 | 61,141 | 133,160 |
Interest expense | (2,150,382) | (69,977) | (1,604,107) | (2,244,280) |
Depreciation and amortization | (33,509,358) | (1,090,444) | (34,384,500) | (32,333,229) |
Share of the profit or loss of associates and joint ventures | 779,474 | 25,365 | 737,650 | 362,133 |
Impairment loss | (64,257) | (2,092) | (86,997) | (218,600) |
Segment profit before income tax | 51,824,438 | 1,686,445 | 41,581,126 | 17,476,440 |
Expenditures for segment assets | 45,936,563 | 1,494,844 | 48,531,368 | 38,643,303 |
Investments accounted for using the equity method | 10,341,203 |  | 12,744,756 | 9,146,344 | 336,518
Contract assets | 4,869,541 |  | 4,735,181 | 3,641,244 | 158,462
Testing segment [member] |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
Operating revenue | 55,960,182 | 1,821,028 | 49,978,736 | 47,271,074 |
Interest income | 84,562 | 2,752 | 88,874 | 79,821 |
Interest expense | (463,043) | (15,068) | (405,648) | (564,269) |
Depreciation and amortization | (14,901,939) | (484,931) | (13,819,080) | (14,189,024) |
Share of the profit or loss of associates and joint ventures | 81,627 | 2,656 | 66,107 | 99,670 |
Impairment loss | (105,169) | (3,422) | (39,769) | (773,673) |
Segment profit before income tax | 14,626,156 | 475,957 | 11,998,938 | 10,277,760 |
Expenditures for segment assets | 21,765,965 | 708,297 | 16,773,513 | 14,275,397 |
Investments accounted for using the equity method | 1,643,940 |  | 1,896,372 | 1,340,307 | 53,496
Contract assets | 861,632 |  | 872,028 | 1,141,660 | 28,039
EMS segment [member] |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
Operating revenue | 301,966,818 | 9,826,450 | 239,488,267 | 204,690,669 |
Interest income | 418,507 | 13,619 | 301,072 | 275,766 |
Interest expense | (1,029,128) | (33,489) | (629,584) | (443,519) |
Depreciation and amortization | (4,654,383) | (151,461) | (4,336,266) | (2,877,546) |
Share of the profit or loss of associates and joint ventures | 324,276 | 10,553 | 95,943 | 85,809 |
Impairment loss | (219,349) | (7,138) |  |  |
Segment profit before income tax | 14,368,179 | 467,562 | 8,528,675 | 8,438,766 |
Expenditures for segment assets | 6,188,401 | 201,380 | 7,654,560 | 5,614,409 |
Investments accounted for using the equity method | 2,694,203 |  | 2,355,472 | 2,320,022 | $ 87,674
All other segments [member] |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
Operating revenue | 8,998,141 | 292,813 | 7,986,231 | 6,350,896 |
Interest income | 42,530 | 1,384 | 91,242 | 32,036 |
Interest expense | (346,581) | (11,278) | (159,596) | (185,160) |
Depreciation and amortization | (2,386,209) | (77,651) | (1,984,431) | (1,859,266) |
Segment profit before income tax | 944,855 | 30,747 | 18,085,030 | (424,168) |
Expenditures for segment assets | 1,909,645 | 62,143 | 1,458,100 | 491,092 |
Inter-group revenues [member] | Packaging segment [member] |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
Operating revenue | 6,940,878 | 225,867 | 7,244,889 | 10,436,168 |
Inter-group revenues [member] | Testing segment [member] |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
Operating revenue | 524,387 | 17,064 | 339,619 | 435,587 |
Inter-group revenues [member] | EMS segment [member] |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
Operating revenue | 35,533,226 | 1,156,304 | 27,825,073 | 21,472,775 |
Inter-group revenues [member] | All other segments [member] |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
Operating revenue | 9,080,132 | 295,481 | 7,527,260 | 7,234,303 |
Inter-group revenues [member] | Adjustments and Eliminations [member] |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
Operating revenue | (52,078,623) | (1,694,716) | (42,936,841) | (39,578,833) |
Operating segment [member] |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
Operating revenue | 722,951,266 | 23,525,911 | 612,933,974 | 516,557,543 |
Operating segment [member] | Packaging segment [member] |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
Operating revenue | 310,888,380 | 10,116,771 | 279,788,788 | 229,102,239 |
Operating segment [member] | Testing segment [member] |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
Operating revenue | 56,484,569 | 1,838,092 | 50,318,355 | 47,706,661 |
Operating segment [member] | EMS segment [member] |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
Operating revenue | 337,500,044 | 10,982,754 | 267,313,340 | 226,163,444 |
Operating segment [member] | All other segments [member] |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
Operating revenue | $ 18,078,273 | $ 588,294 | $ 15,513,491 | $ 13,585,199 |

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