Impairment of inventory is shown as below:
| 2017 | 2016 | |||||||
| RMB million | RMB million | |||||||
|
At January 1 |
144 | 110 | ||||||
|
Provision for impairment of inventories |
110 | 44 | ||||||
|
Provision written off in relation to disposal of inventories |
(28 | ) | (10 | ) | ||||
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At December 31 |
226 | 144 | ||||||
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