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Cash Generated by Operations | 12 Months Ended
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Dec. 31, 2017
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Cash Generated by Operations |
28. | CASH GENERATED BY OPERATIONS
|  | UNITED STATES DOLLAR |
|  | 2017 |  |  | 2016 |  |  | 2015 |
(Loss)/profit from continuing operations |  |  | (20.8 | ) |  |  | 167.9 |  |  |  | (239.6 | )
Mining and income taxation |  |  | 173.2 |  |  |  | 189.5 |  |  |  | 248.5 |
Royalties |  |  | 62.0 |  |  |  | 78.4 |  |  |  | 73.9 |
Interest expense |  |  | 91.2 |  |  |  | 82.5 |  |  |  | 87.8 |
Interest received |  |  | (5.1 | ) |  |  | (7.3 | ) |  |  | (5.9 | )
Amortisation and depreciation |  |  | 748.1 |  |  |  | 671.4 |  |  |  | 591.5 |
Interest expense - environmental rehabilitation |  |  | 12.1 |  |  |  | 10.7 |  |  |  | 11.7 |
Non-cash rehabilitation income |  |  | (13.5 | ) |  |  | (9.7 | ) |  |  | (14.6 | )
Interest received - environmental trust funds |  |  | (0.5 | ) |  |  | (1.0 | ) |  |  | (0.4 | )
Impairment, net of reversal of impairment of investments and assets |  |  | 200.2 |  |  |  | 76.5 |  |  |  | 206.9 |
Write-off of exploration and evaluation assets |  |  | 51.5 |  |  |  | 41.4 |  |  |  | 29.1 |
(Profit)/loss on disposal of assets |  |  | (4.0 | ) |  |  | (48.0 | ) |  |  | 0.1 |
Profit on disposal of investments |  |  | — |  |  |  | (2.3 | ) |  |  | (0.1 | )
Share-based payments |  |  | 26.8 |  |  |  | 14.0 |  |  |  | 10.7 |
Long-term incentive plan expense |  |  | 5.0 |  |  |  | 10.5 |  |  |  | 5.1 |
Payment of long-term incentive plan |  |  | (11.5 | ) |  |  | — |  |  |  | — |
Borrowing costs capitalised |  |  | (22.9 | ) |  |  | (15.1 | ) |  |  | (16.6 | )
Share of results of equity-accounted investees, net of taxation |  |  | (0.3 | ) |  |  | — |  |  |  | 2.4 |
Other |  |  | (5.0 | ) |  |  | (14.0 | ) |  |  | (7.9 | )
Total cash generated by operations |  |  | 1,286.5 |  |  |  | 1,245.4 |  |  |  | 982.6 |
| 1 | Refer note 40 for further details.
| 2 | This relates to the Peruvian copper derivative contracts. Refer note 37 for further details.

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