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Finance Costs | 12 Months Ended
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Dec. 31, 2017
Text block1 [abstract] |
Finance Costs |
28. | FINANCE COSTS
|  | Years Ended December 31 |
|  | 2015 |  |  | 2016 |  |  | 2017 |
|  | NT$ |  |  | NT$ |  |  | NT$ |
|  | (In Millions) |  |  | (In Millions) |  |  | (In Millions) |
Interest expense |  |  |  |  |  |  |  |  |  |  |  |
Corporate bonds |  | $ | 3,103.7 |  |  | $ | 3,014.7 |  |  | $ | 2,563.6 |
Bank loans |  |  | 74.6 |  |  |  | 291.2 |  |  |  | 766.6 |
Finance leases |  |  | 11.7 |  |  |  | — |  |  |  | — |
Others |  |  | 0.3 |  |  |  | 0.2 |  |  |  | 0.1 |
|  | $ | 3,190.3 |  |  | $ | 3,306.1 |  |  | $ | 3,330.3 |

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