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Operating Segment Information (Tables)
 12 Months Ended
Dec. 31, 2019
Text block1 [abstract]  
Reportable Segment Information
Reportable segment information for the years ended December 31, 2017, 2018 and 2019 were as follows:
 
   
                     
   
                     
   
                     
   
                     
   
                     
 
 
  
For the year ended December 31, 2017
 
 
  
Wafer
Fabrication
 
 
New Business
 
 
Subtotal
 
 
Adjustment
and
Elimination
(Note)
 
 
Consolidated
 
 
  
NT$
 
 
NT$
 
 
NT$
 
 
NT$
 
 
NT$
 
 
  
(In Thousands)
 
 
(In Thousands)
 
 
(In Thousands)
 
 
(In Thousands)
 
 
(In Thousands)
 
Operating revenues from external customers
  
$
148,939,836
 
 
$
344,870
 
 
$
149,284,706
 
 
$
—  
 
 
$
149,284,706
 
Operating revenues from sales among intersegments
  
 
—  
 
 
 
13,600
 
 
 
13,600
 
 
 
(13,600
) 
 
 
—  
 
Segment net income (loss), net of tax
  
 
6,728,620
 
 
 
(665,895
) 
 
 
6,062,725
 
 
 
616,504
 
 
 
6,679,229
 
Acquisition of property, plant and equipment
  
 
44,229,488
 
 
 
6,788
 
 
 
44,236,276
 
 
 
—  
 
 
 
44,236,276
 
Depreciation
  
 
50,737,240
 
 
 
227,880
 
 
 
50,965,120
 
 
 
—  
 
 
 
50,965,120
 
Share of profit or loss of associates and joint ventures
  
 
(258,959
) 
 
 
(32,619
) 
 
 
(291,578
) 
 
 
449,415
 
 
 
157,837
 
Income tax expense (benefit)
  
 
1,167,154
 
 
 
3
 
 
 
1,167,157
 
 
 
(174,676
) 
 
 
992,481
 
Impairment loss
  
 
632,207
 
 
 
318,128
 
 
 
950,335
 
 
 
—  
 
 
 
950,335
 
 
   
                     
   
                     
   
                     
   
                     
   
                     
 
 
  
For the year ended December 31, 2018
 
 
  
Wafer
Fabrication
 
 
New Business
 
 
Subtotal
 
 
Adjustment
and
Elimination
(Note)
 
 
Consolidated
 
 
  
NT$
 
 
NT$
 
 
NT$
 
 
NT$
 
 
NT$
 
 
  
(In Thousands)
 
 
(In Thousands)
 
 
(In Thousands)
 
 
(In Thousands)
 
 
(In Thousands)
 
Operating revenues from external customers
  
$
151,023,932
 
 
$
228,639
 
 
$
151,252,571
 
 
$
—  
 
 
$
151,252,571
 
Operating revenues from sales among intersegments
  
 
—  
 
 
 
19,290
 
 
 
19,290
 
 
 
(19,290
) 
 
 
—  
 
Segment net income (loss), net of tax
  
 
2,688,331
 
 
 
(602,809
) 
 
 
2,085,522
 
 
 
1,162,275
 
 
 
3,247,797
 
Acquisition of property, plant and equipment
  
 
19,589,770
 
 
 
305
 
 
 
19,590,075
 
 
 
—  
 
 
 
19,590,075
 
Depreciation
  
 
49,777,242
 
 
 
171,347
 
 
 
49,948,589
 
 
 
—  
 
 
 
49,948,589
 
Share of profit or loss of associates and joint ventures
  
 
(1,201,986
) 
 
 
(23,245
) 
 
 
(1,225,231
) 
 
 
608,566
 
 
 
(616,665
) 
Income tax expense (benefit)
  
 
(456,058
) 
 
 
(2,595
) 
 
 
(458,653
) 
 
 
(671,224
) 
 
 
(1,129,877
) 
Impairment loss
  
 
46,225
 
 
 
—  
 
 
 
46,225
 
 
 
—  
 
 
 
46,225
 
 
   
                     
   
                     
   
                     
   
                     
   
                     
 
 
  
For the year ended December 31, 2019
 
 
  
Wafer
Fabrication
 
 
New Business
 
 
Subtotal
 
 
Adjustment
and
Elimination
(Note)
 
 
Consolidated
 
 
  
NT$
 
 
NT$
 
 
NT$
 
 
NT$
 
 
NT$
 
 
  
(In Thousands)
 
 
(In Thousands)
 
 
(In Thousands)
 
 
(In Thousands)
 
 
(In Thousands)
 
Operating revenues from external customers
  
$
148,123,306
 
 
$
78,335
 
 
$
148,201,641
 
 
$
—  
 
 
$
148,201,641
 
Segment net income (loss), net of tax
  
 
6,156,681
 
 
 
(442,365
) 
 
 
5,714,316
 
 
 
(1,
138
,
066
) 
 
 
4,57
6
,
250
 
Acquisition of property, plant and equipment
  
 
16,518,483
 
 
 
—
 
 
 
16,518,483
 
 
 
—
 
 
 
16,518,483
 
Acquisition of intangible assets
  
 
2,443,593
 
 
 
—
 
 
 
2,443,593
 
 
 
—
 
 
 
2,443,593
 
Cash payments for the principal portion of the lease liability
  
 
614,845
 
 
 
18,643
 
 
 
633,488
 
 
 
—
 
 
 
633,488
 
Depreciation
  
 
47,038,876
 
 
 
134,005
 
 
 
47,172,881
 
 
 
—
 
 
 
47,172,881
 
Share of profit or loss of associates and joint ventures
  
 
733,044
 
 
 
—
 
 
 
733,044
 
 
 
(617,715
) 
 
 
115,329
 
Income tax expense (benefit)
  
 
(414,104
) 
 
 
20,974
 
 
 
(393,130
) 
 
 
62
3
,
476
 
 
 
23
0
,
346
 
Impairment loss
  
 
33,160
 
 
 
84,974
 
 
 
118,134
 
 
 
—
 
 
 
118,134
 
 
 
  
As of December 31, 2018
 
 
  
Wafer
Fabrication
 
  
New Business
 
  
Subtotal
 
  
Adjustment
and
Elimination
(Note)
 
 
Consolidated
 
 
  
NT$
 
  
NT$
 
  
NT$
 
  
NT$
 
 
NT$
 
 
  
(In Thousands)
 
  
(In Thousands)
 
  
(In Thousands)
 
  
(In Thousands)
 
 
(In Thousands)
 
Segment assets
  
$
363,529,040
 
  
$
1,263,368
 
  
$
364,792,408
 
  
$
(2,195,179
) 
 
$
362,597,229
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
 
 
 
 
Segment liabilities
  
$
157,000,054
 
  
$
1,068,722
 
  
$
158,068,776
 
  
$
130,970
 
 
$
158,199,746
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
 
 
 
 
 
 
  
As of December 31, 2019
 
 
  
Wafer
Fabrication
 
  
New Business
 
  
Subtotal
 
  
Adjustment
and
Elimination
(Note)
 
 
Consolidated
 
 
  
NT$
 
  
NT$
 
  
NT$
 
  
NT$
 
 
NT$
 
 
  
(In Thousands)
 
  
(In Thousands)
 
  
(In Thousands)
 
  
(In Thousands)
 
 
(In Thousands)
 
Segment assets
  
$
369,189,983
 
  
$
924,149
 
  
$
370,114,132
 
  
$
(3,
852
,4
39
) 
 
$
366,
261
,
693
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
 
 
 
 
Segment liabilities
  
$
161,955,970
 
  
$
1,157,878
 
  
$
163,113,848
 
  
$
23
3,
930
 
 
$
163,
347
,
77
8
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
 
 
 
 
 
Geographic Information, Non-current Assets
 
(2)
Geographic information
Non-current
assets
 
 
  
As of December 31,
 
 
  
2018
 
  
2019
 
 
  
NT$
 
  
NT$
 
 
  
(In Thousands)
 
  
(In Thousands)
 
Taiwan
  
$
90,046,190
 
  
$
73,481,714
 
Singapore
  
 
16,881,746
 
  
 
15,191,880
 
China (includes Hong Kong)
  
 
73,627,957
 
  
 
63,622,327
 
USA
  
 
31,919
 
  
 
70,498
 
Europe
  
 
155,489
 
  
 
24,383
 
Japan
  
 
232
 
  
 
12,265,769
 
Others
  
 
—  
 
  
 
3,309
 
 
  
 
 
 
  
 
 
 
Total
  
$
180,743,533
 
  
$
164,659,880
 
 
  
 
 
 
  
 
 
 
Individual Customers Accounting for at least 10% of Operating Revenues
Individual customers accounting for at least 10% of operating revenues for the years ended December 31, 2017, 2018 and 2019 were as follows:
 
 
  
For the years ended December 31,
 
 
  
2017
 
  
2018
 
  
2019
 
 
  
NT$
 
  
NT$
 
  
NT$
 
 
  
(In Thousands)
 
  
(In Thousands)
 
  
(In Thousands)
 
Customer A from wafer fabrication segment
  
$
15,632,722
 
  
$
15,357,470
 
  
$
17,576,293