| 11 | OPERATING PROFIT |
Operating profit is stated after charging the following items:
| 2017 | 2016 | 2015 | ||||||||||
| RMB million | RMB million | RMB million | ||||||||||
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Amortization of intangible assets (note 17) |
142 | 129 | 85 | |||||||||
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Depreciation of property, plant and equipment (note 18) |
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– owned |
7,065 | 6,388 | 5,350 | |||||||||
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– leased (finance leases) |
6,302 | 5,563 | 4,972 | |||||||||
|
Depreciation of investment properties (note 19) |
12 | 11 | 4 | |||||||||
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Amortization of long-term deferred assets included in other non-current assets |
402 | 394 | 388 | |||||||||
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Amortization of prepayments for land use right |
45 | 63 | 60 | |||||||||
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Consumption of flight equipment spare parts |
1,131 | 1,198 | 974 | |||||||||
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Auditors’ remuneration |
19 | 18 | 17 | |||||||||
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Subsidy income (note 6) |
(4,941 | ) | (4,531 | ) | (4,131 | ) | ||||||
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Gain on disposal of a subsidiary (note 6) |
(1,754 | ) | — | (41 | ) | |||||||
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