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v3.8.0.1

Events occurred after the reporting date (Tables) | 12 Months Ended
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Dec. 31, 2017
Disclosure of information about modification of lease rates on approval by the parties [Abstract] |
Disclosure of information about modification of lease rates on approval by the parties [Text Block] |
Price US$/MT Li2CO3 |  | Lease payment rate |
$0 - $4,000 |  | 6.8% |
$4,000 - $5,000 |  | 8.0% |
$5,000 - $6,000 |  | 10.0% |
$6,000 - $7,000 |  | 17.0% |
$7,000 - $10,000 |  | 25.0% |
> $10,000 |  | 40.0% |
Price US$/MT KCL |  | Lease payment rate |
$0 - $300 |  | 3.0% |
$300 - $400 |  | 7.0% |
$400 - $500 |  | 10.0% |
$500 - $600 |  | 15.0% |
> $600 |  | 20.0% |

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