Impairment losses on financial assets for the years ended December 31, 2016 and 2017 were as follows:
| 2016 | 2017 | |||||||
| (in millions of Won) | ||||||||
|
Bad debt expenses on trade accounts and notes receivable |
￦ | 165,150 | 173,694 | |||||
|
Other bad debt expenses (*1) |
50,225 | 100,920 | ||||||
|
Impairment loss on available-for-sale financial assets |
248,404 | 123,214 | ||||||
|
Less: Recovery of allowance for other bad debt accounts |
(12,658 | ) | (2,743 | ) | ||||
|
Less: Recovery of impairment loss on held-to-maturity financial assets |
(38 | ) | (20 | ) | ||||
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|
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| ￦ | 451,083 | 395,065 | ||||||
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| (*1) | Other bad debt expenses are mainly related to other receivables and loans. |