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v3.10.0.1

Group income statement - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Consolidated operations |  |  |
Consolidated sales revenue | $ 40,522 | $ 40,030 | $ 33,781
Net operating costs (excluding items shown separately) | (27,115) | (26,983) | (26,799)
Impairment charges | (132) | (796) | (249)
Net gains on consolidation and disposal of interests in businesses | 4,622 | 2,344 | 515
Exploration and evaluation costs | (488) | (445) | (497)
Profit/(loss) relating to interests in undeveloped projects | 278 | (15) | 44
Operating profit | 17,687 | 14,135 | 6,795
Share of profit after tax of equity accounted units | 513 | 339 | 321
Profit before finance items and taxation | 18,200 | 14,474 | 7,116
Finance items |  |  |
Net exchange gains/(losses) on US external debt and intragroup balances | 704 | (601) | 611
Net (losses)/gains on derivatives not qualifying for hedge accounting | (57) | 33 | (24)
Finance income | 249 | 141 | 89
Finance costs | (552) | (848) | (1,111)
Amortisation of discount | (377) | (383) | (338)
Net finance income (expense) | (33) | (1,658) | (773)
Profit before taxation | 18,167 | 12,816 | 6,343
Taxation | (4,242) | (3,965) | (1,567)
Profit after tax for the year | 13,925 | 8,851 | 4,776
– attributable to owners of Rio Tinto (net earnings) | 13,638 | 8,762 | 4,617
– attributable to non-controlling interests | $ 287 | $ 89 | $ 159
Basic earnings per share | $ 793.2 | $ 490.4 | $ 256.9
Diluted earnings per share | $ 787.6 | $ 486.9 | $ 255.3

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