| b. | Segment revenue and operating results |
| Foundry | Others | Total | ||||||||||
| NT$ | NT$ | NT$ | ||||||||||
| (In Millions) | (In Millions) | (In Millions) | ||||||||||
|
Year ended December 31, 2015 |
||||||||||||
|
Net revenue from external customers |
$ | 842,690.2 | $ | 807.2 | $ | 843,497.4 | ||||||
|
Income (loss) from operations |
320,833.2 | (785.4 | ) | 320,047.8 | ||||||||
|
Share of profits (loss) of associates and joint venture |
4,582.0 | (385.6 | ) | 4,196.4 | ||||||||
|
Income tax expense (benefit) |
47,646.5 | (1.8 | ) | 47,644.7 | ||||||||