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INVENTORIES (Tables) | 12 Months Ended
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Dec. 31, 2018
INVENTORIES |
Schedule of inventories |
|  | 2017 |  | 2018
Components |  | 447 |  | 429
SIM cards and blank prepaid vouchers |  | 168 |  | 137
Others |  | 69 |  | 218
Total |  | 684 |  | 784
Provision for obsolescence |  |  |  |
Components |  | (24) |  | (38)
SIM cards and blank prepaid vouchers |  | (29) |  | (28)
Others |  | (0) |  | (1)
Total |  | (53) |  | (67)
Net |  | 631 |  | 717
Schedule of movements in the provision for obsolescence |
|  | 2017 |  | 2018
Beginning balance |  | 47 |  | 53
Provision recognised during the year |  | 6 |  | 22
Inventory written off |  | — |  | (8)
Ending balance |  | 53 |  | 67

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