| 8. | Inventories |
Details of inventories as of December 31, 2017 and 2016 are as follows:
| (In millions of won) | ||||||||||||||||||||||||
| December 31, 2017 | December 31, 2016 | |||||||||||||||||||||||
| Acquisition cost |
Write-down | Carrying amount |
Acquisition cost |
Write-down | Carrying amount |
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Merchandise |
￦ | 251,463 | (7,488 | ) | 243,975 | 232,871 | (6,913 | ) | 225,958 | |||||||||||||||
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Finished goods |
1,889 | (557 | ) | 1,332 | 1,931 | (363 | ) | 1,568 | ||||||||||||||||
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Work-in-process |
1,906 | (956 | ) | 950 | 2,895 | (347 | ) | 2,548 | ||||||||||||||||
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Raw materials and supplies |
29,395 | (3,249 | ) | 26,146 | 31,141 | (1,369 | ) | 29,772 | ||||||||||||||||
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| ￦ | 284,653 | (12,250 | ) | 272,403 | 268,838 | (8,992 | ) | 259,846 | ||||||||||||||||
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The amount of the inventory write-downs and write-off of inventories charged to statement of income are as follows:
| (In millions of won) | ||||||||||||
| 2017 | 2016 | 2015 | ||||||||||
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Charged to cost of products that have been resold |
￦ | 6,079 | 3,751 | 1,983 | ||||||||
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Write-off upon sale |
(2,820 | ) | (1,299 | ) | (2,095 | ) | ||||||
There are no significant reversals of inventory write-downs for the periods presented.