| 15 | Property, plant and equipment |
| Buildings RMB’000 |
Plant and machinery RMB’000 |
Vehicles and other equipment RMB’000 |
Total RMB’000 |
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| As at 1 January 2016 |
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| Cost |
3,813,839 | 40,630,644 | 1,903,931 | 46,348,414 | ||||||||||||
| Accumulated depreciation |
(2,216,300 | ) | (27,279,363 | ) | (1,495,393 | ) | (30,991,056 | ) | ||||||||
| Impairment loss |
(279,099 | ) | (640,897 | ) | (54,043 | ) | (974,039 | ) | ||||||||
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| Net book amount |
1,318,440 | 12,710,384 | 354,495 | 14,383,319 | ||||||||||||
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| Year ended 31 December 2016 |
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| Opening net book amount |
1,318,440 | 12,710,384 | 354,495 | 14,383,319 | ||||||||||||
| Additions |
195 | 149,691 | 16,826 | 166,712 | ||||||||||||
| Disposals |
(1,300 | ) | (33,660 | ) | (2,173 | ) | (37,133 | ) | ||||||||
| Reclassification |
(4,192 | ) | (5,573 | ) | 9,765 | — | ||||||||||
| Transferred from construction in progress (Note 17) |
28,652 | 757,157 | 42,782 | 828,591 | ||||||||||||
| Transferred from investment property (Note 16) |
11,587 | — | — | 11,587 | ||||||||||||
| Charge for the year |
(94,189 | ) | (1,467,424 | ) | (62,934 | ) | (1,624,547 | ) | ||||||||
| Impairment loss |
— | (247,058 | ) | (7,184 | ) | (254,242 | ) | |||||||||
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| Closing net book amount |
1,259,193 | 11,863,517 | 351,577 | 13,474,287 | ||||||||||||
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| As at 31 December 2016 |
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| Cost |
3,841,570 | 41,025,426 | 1,924,313 | 46,791,309 | ||||||||||||
| Accumulated depreciation |
(2,303,278 | ) | (28,330,684 | ) | (1,511,509 | ) | (32,145,471 | ) | ||||||||
| Impairment loss |
(279,099 | ) | (831,225 | ) | (61,227 | ) | (1,171,551 | ) | ||||||||
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| Net book amount |
1,259,193 | 11,863,517 | 351,577 | 13,474,287 | ||||||||||||
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| Year ended 31 December 2017 |
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| Opening net book amount |
1,259,193 | 11,863,517 | 351,577 | 13,474,287 | ||||||||||||
| Additions |
— | 1,231 | 1,694 | 2,925 | ||||||||||||
| Disposals |
(736 | ) | (14,029 | ) | (1,659 | ) | (16,424 | ) | ||||||||
| Reclassification |
(22,337 | ) | 20,519 | 1,818 | — | |||||||||||
| Transferred from construction in progress(Note 17) |
3,631 | 1,085,101 | 43,484 | 1,132,216 | ||||||||||||
| Transferred to investment property (Note 16) |
(24,489 | ) | — | — | (24,489 | ) | ||||||||||
| Transferred to lease prepayments and other assets (Note 14) |
(9,066 | ) | — | — | (9,066 | ) | ||||||||||
| Charge for the year |
(83,803 | ) | (1,423,511 | ) | (67,528 | ) | (1,574,842 | ) | ||||||||
| Impairment loss |
— | (118,179 | ) | — | (118,179 | ) | ||||||||||
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| Closing net book amount |
1,122,393 | 11,414,649 | 329,386 | 12,866,428 | ||||||||||||
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| As at 31 December 2017 |
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| Cost |
3,641,220 | 41,661,819 | 1,907,177 | 47,210,216 | ||||||||||||
| Accumulated depreciation |
(2,239,728 | ) | (29,299,129 | ) | (1,516,564 | ) | (33,055,421 | ) | ||||||||
| Impairment loss |
(279,099 | ) | (948,041 | ) | (61,227 | ) | (1,288,367 | ) | ||||||||
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| Net book amount |
1,122,393 | 11,414,649 | 329,386 | 12,866,428 | ||||||||||||
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In the year ended 31 December 2017, the amount of depreciation expense charged to cost of sales and selling and administrative expense were RMB 1,565,465 thousands and RMB 9,377 thousands, respectively (2016: RMB 1,616,117 thousands and RMB 8,430 thousands, respectively; 2015: RMB 1,706,595 thousands and RMB 2,172 thousands, respectively).
During the year ended 31 December 2017, the Group made impairment provision of RMB 118,179 thousands against these property, plant and equipment which will be redundant and replaced by new facilities (2016: RMB 254,242 thousands).