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Capital management (Tables) | 12 Months Ended
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Dec. 31, 2017
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Summary of Capital Structure | The capital structure of the Group consists of debts (which includes the borrowings and trade and other payables, less cash and bank balances) and equity attributable to equity holders of the parent (comprising issued capital and reserves).
|  | 31.12.2016 |  |  | 31.12.2017 |  |  | 31.12.2017 |
|  | RMB’000 |  |  | RMB’000 |  |  | US$’000 |
Interest-bearing loans and borrowings (current and non-current) (Note 16(b)) |  |  | 910,406 |  |  |  | 1,626,341 |  |  |  | 256,951 |
Trade and other payables (current and non-current) (Note 28) |  |  | 6,981,815 |  |  |  | 7,624,496 |  |  |  | 1,204,616 |
Less: Cash and bank balances (Note 23) |  |  | (4,052,957 | ) |  |  | (6,029,207 | ) |  |  | (952,572 | )
Net debts |  |  | 3,839,264 |  |  |  | 3,221,630 |  |  |  | 508,995 |
Equity attributable to equity holders of the parent |  |  | 7,683,834 |  |  |  | 8,347,562 |  |  |  | 1,318,855 |
Total capital and net debts |  |  | 11,523,098 |  |  |  | 11,569,192 |  |  |  | 1,827,850 |

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