| 28. | FINANCE COSTS |
| Years Ended December 31 | ||||||||||||
| 2015 | 2016 | 2017 | ||||||||||
| NT$ | NT$ | NT$ | ||||||||||
| (In Millions) | (In Millions) | (In Millions) | ||||||||||
|
Interest expense |
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Corporate bonds |
$ | 3,103.7 | $ | 3,014.7 | $ | 2,563.6 | ||||||
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Bank loans |
74.6 | 291.2 | 766.6 | |||||||||
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Finance leases |
11.7 | — | — | |||||||||
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Others |
0.3 | 0.2 | 0.1 | |||||||||
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| $ | 3,190.3 | $ | 3,306.1 | $ | 3,330.3 | |||||||
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