| $000 | | Dec 31, 2017 | | Dec 31, 2016 | | Dec 31, 2015 | | |||
| | | | | | | | | | | |
| (Loss)/Profit before income taxation | | | (40,349) | | | 26,728 | | | 155,825 | |
| Adjustments for: | | | | | | | | | | |
| Interest received (Note 6) | | | (4,147) | | | (4,735) | | | (4,818) | |
| Finance cost (Note 6) | | | 4,949 | | | 4,949 | | | 4,992 | |
| Share of profits of equity accounted joint venture | | | (113) | | | (129) | | | (268) | |
| Depreciation and amortization | | | 264,415 | | | 210,925 | | | 192,509 | |
| Foreign exchange loss | | | 38,326 | | | 36,134 | | | - | |
| Movement in discounting provision on TVA (Note 3) | | | 12,177 | | | 7,820 | | | - | |
| Recycling of permanent losses on available-for-sale asset | | | - | | | - | | | 3,144 | |
| Unwinding of rehabilitation provision | | | 529 | | | 349 | | | 384 | |
| | | | 275,930 | | | 282,041 | | | 351,768 | |
| Effects of changes in operating working capital items | | | | | | | | | | |
| - Receivables | | | (69,741) | | | (29,287) | | | (7,122) | |
| - Inventories | | | 30,266 | | | 5,484 | | | 12,565 | |
| - Trade and other payables | | | (11,026) | | | 14,712 | | | 12,447 | |
| Cash generated from operations | | | 225,429 | | | 272,950 | | | 369,658 | |
| | | Non-current | | Current | | | | | ||
| | | loans and | | loans and | | | | | ||
| $000 | | borrowings | | borrowings | | Total | | |||
| | | | | | | | | | | |
| At January 1, 2017 | | | 46,707 | | | 8,310 | | | 55,017 | |
| Cash flows: | | | | | | | | | | |
| Lease repayments | | | - | | | (7,228) | | | (7,228) | |
| Non cash flows: | | | | | | | | | | |
| Loans and borrowings classified as non- | | | | | | | | | | |
| current at December 31, 2016 | | | (6,357) | | | 6,357 | | | - | |
| Interest and capital accrued | | | - | | | 157 | | | 157 | |
| At December 31, 2017 1 | | | 40,350 | | | 7,596 | | | 47,946 | |