Aging analysis of accounts receivable, net:
| As of December 31, | ||||||||
| 2016 | 2017 | |||||||
| NT$ | NT$ | |||||||
| (In Thousands) | (In Thousands) | |||||||
|
Neither past due nor impaired |
$ | 18,516,739 | $ | 15,496,207 | ||||
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Past due but not impaired: |
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|
£ 30 days |
3,018,482 | 4,268,772 | ||||||
|
31 to 60 days |
630,762 | 444,401 | ||||||
|
61 to 90 days |
513,702 | 138,178 | ||||||
|
91 to 120 days |
183,572 | 124,332 | ||||||
|
³ 121 days |
38,204 | 404,527 | ||||||
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Subtotal |
4,384,722 | 5,380,210 | ||||||
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Total |
$ | 22,901,461 | $ | 20,876,417 | ||||
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