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Geographical and product analysis (Tables) | 6 Months Ended
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Jun. 30, 2018
Disclosure Of Geographical Areas [Abstract] |
Disclosure Of Sales Revenue By Destination Explanatory |
|  | Six months |  | Adjusted six months |  | Six months |  | Adjusted six months
|  | to 30 June |  | to 30 June |  | to 30 June |  | to 30 June
|  | 2018 |  | 2017(b) |  | 2018 |  | 2017(b)
Consolidated sales revenue by destination(a) |  | % |  | % |  | US$m |  | US$m
China |  | 44.9 |  | 43.6 |  | 8,946 |  | 8,414
Asia (excluding China and Japan) |  | 11.6 |  | 13.2 |  | 2,316 |  | 2,546
United States of America |  | 15.7 |  | 13.9 |  | 3,117 |  | 2,683
Japan |  | 10.1 |  | 12.2 |  | 2,019 |  | 2,363
Europe (excluding UK) |  | 8.5 |  | 7.8 |  | 1,700 |  | 1,498
Canada |  | 3.2 |  | 2.7 |  | 634 |  | 525
Australia |  | 1.8 |  | 1.8 |  | 353 |  | 350
UK |  | 0.9 |  | 1.1 |  | 173 |  | 219
Other |  | 3.3 |  | 3.7 |  | 656 |  | 721
Consolidated sales revenue |  | 100.0 |  | 100.0 |  | 19,914 |  | 19,319
The financial information by business unit and the geographic analysis of sales by destination satisfy the disclosure requirements of IFRS 8 ‘Operating Segments’ for interim financial statements and also provide additional voluntary disclosure which the Group considers is useful to the users of the financial statements.
| (a) | Consolidated sales revenue by geographical destination is based on the ultimate country of destination of the product, if known. If the eventual destination of the product sold through traders is not known then revenue is allocated to the location of the product at the time when the risks and rewards of ownership are transferred. Rio Tinto is domiciled in both the UK and Australia.
| (b) | The 30 June 2017 comparatives above have been amended to correct the allocation of revenues by region. The most significant impacts are an increase in the amount allocated to Japan by US$177 million and a decrease to Other Asia (which excludes China and Japan) of US$158 million. There is no impact on the total consolidated sales revenue.
Consolidated sales revenue by product |
|  | Six months to 30 June 2018 |  |  | Six months to June 2017 |
|  | Revenue from contracts with customers |  |  | Other revenue(a) |  |  | Consolidated sales revenue |  |  | Consolidated sales revenue(b) |
Consolidated sales revenue by product |  | US$m |  |  | US$m |  |  | US$m |  |  | US$m |
Iron Ore |  |  | 9,669 |  |  |  | (61 | ) |  |  | 9,608 |  |  |  | 9,594 |
Aluminium |  |  | 6,027 |  |  |  | 38 |  |  |  | 6,065 |  |  |  | 5,270 |
Copper |  |  | 1,077 |  |  |  | 5 |  |  |  | 1,082 |  |  |  | 730 |
Coal |  |  | 835 |  |  |  | 5 |  |  |  | 840 |  |  |  | 1,533 |
Industrial minerals |  |  | 1,067 |  |  |  | - |  |  |  | 1,067 |  |  |  | 975 |
Gold |  |  | 228 |  |  |  | - |  |  |  | 228 |  |  |  | 186 |
Diamonds |  |  | 323 |  |  |  | - |  |  |  | 323 |  |  |  | 340 |
Other |  |  | 701 |  |  |  | - |  |  |  | 701 |  |  |  | 691 |
Consolidated sales revenue |  |  | 19,927 |  |  |  | (13 | ) |  |  | 19,914 |  |  |  | 19,319 |
Share of equity accounted unit sales and intra-subsidiary/equity accounted unit sales |  |  |  |  |  |  |  |  |  |  | 1,293 |  |  |  | 589 |
Gross sales revenue |  |  |  |  |  |  |  |  |  |  | 21,207 |  |  |  | 19,908 |
(a) | Certain of the Group’s products may be provisionally priced at the date revenue is recognised. The change in value of the provisionally priced receivables is based on relevant forward market prices and is included in ‘Other revenue’ above. In the prior year there was no equivalent requirement under IAS 18 to separate out such provisional price movements and therefore this was not separately disclosed.
(b) | Presentation of comparative consolidated sales revenue is in accordance with the previous standard IAS 18 ‘Revenue Recognition’. No material measurement or recognition differences on comparative information were identified between IAS 18 and the current standard IFRS 15.

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