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Financial instruments (Tables) | 12 Months Ended
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Jun. 30, 2024
Disclosure of detailed information about financial instruments [abstract] |
Financial Asset or Liability by Currency | At the end of the reporting period, the Group’s exposure to foreign currency risk was as follows (denominated in US Dollars):
| Financial assets |  | Financial liabilities |
| 30 June 2024 |  | 30 June 2023 |  | 30 June 2024 |  | 30 June 2023 |
| US$’000 |  | US$’000 |  | US$’000 |  | US$’000 |
US dollars | 442,127 |  |  | 96,888 |  |  | 56,720 |  |  | 32,619 |  |
Canadian dollars | 112,639 |  |  | 124,549 |  |  | 1,265 |  |  | 37,390 |  |
| 554,766 |  |  | 221,437 |  |  | 57,985 |  |  | 70,009 |  |
Sensitivity Analysis for Types of Market Risk and Interest Rate Risk | The following table illustrates sensitivities to the Group’s exposure to changes in exchange rates. The table indicates the impact on how profit and equity values reported at the end of the reporting period would have been affected by changes in the relevant risk variables that management considers to be reasonably possible. These sensitivities assume that the movement in a particular variable is independent of other variables, each scenario assumes no change to other variables.
| Strengthened |  | Weakened |
30 June 2024 | Change % |  | Effect on profit before tax US$’000 |  | Effect on equity US$’000 |  | Change % |  | Effect on profit before tax US$’000 |  | Effect on equity US$’000 |
US dollar | 10 | % |  | 45,350 |  |  | 45,350 |  |  | 10 | % |  | (55,427) |  |  | (55,427) |  |
Canadian dollar | 10 | % |  | 18,115 |  |  | 18,115 |  |  | 10 | % |  | (18,251) |  |  | (18,251) |  |
Australian dollar | 10 | % |  | (62,606) |  |  | (62,606) |  |  | 10 | % |  | 76,179 |  |  | 76,179 |  |
A reasonably possible change of 100 basis points ("bp") in interest rates at the reporting date would have increased (decreased) profit or loss by the amounts shown below:
30 June 2024 |  | 100 bp increase US$’000 |  | 100 bp decrease US$’000 |
Term deposit |  | 425 |  |  | (425) |  |
Remunerated bank account |  | 897 |  |  | (897) |  |
Cash flow sensitivity (net) |  | 1,322 |  |  | (1,322) |  |
Remaining Contractual Maturity for Financial Instrument Liabilities | The following table details the Group’s remaining contractual maturity for its financial instruments and other liabilities. The table presents the undiscounted cash flows of financial liabilities based on the earliest date on which the financial liabilities are required to be paid. The table includes both interest and principal cash flows disclosed as remaining contractual maturities and therefore these totals may differ from their carrying amount in the consolidated statement of financial position.
| Weighted average contractual interest rate |  | 1 year or less |  | Between 1 and 2 years |  | Between 2 and 5 years |  | Over 5 years |  | Remaining contractual maturities |
30 June 2024 | % |  | US$’000 |  | US$’000 |  | US$’000 |  | US$’000 |  | US$’000 |
Trade and other payables | - |  |  | 24,780 |  |  | - |  |  | - |  |  | - |  |  | 24,780 |  |
Lease liabilities | - |  |  | 371 |  |  | 261 |  |  | 516 |  |  | 2,869 |  |  | 4,017 |  |
Total non-derivatives |  |  | 25,151 |  |  | 261 |  |  | 516 |  |  | 2,869 |  |  | 28,797 |  |
| Weighted average contractual interest rate |  | 1 year or less |  | Between 1 and 2 years |  | Between 2 and 5 years |  | Over 5 years |  | Remaining contractual maturities |
30 June 2023 | % |  | US$’000 |  | US$’000 |  | US$’000 |  | US$’000 |  | US$’000 |
Trade and other payables | - |  |  | 13,541 |  |  | - |  |  | - |  |  | - |  |  | 13,541 |  |
Lease liabilities | - |  |  | 335 |  |  | 326 |  |  | 446 |  |  | 2,270 |  |  | 3,377 |  |
Total non-derivatives |  |  | 13,876 |  |  | 326 |  |  | 446 |  |  | 2,270 |  |  | 16,918 |  |
Disclosure of Financial Assets at Fair Value Through Profit or Loss | Financial assets at fair value through profit or loss
| Consolidated |
| 30 June 2024 |  | 30 June 2023 |
| US$’000 |  | US$’000 |
Current assets |  |  |  |
Electricity financial asset | 6,530 |  |  | - |  |
Reconciliation |  |  |  |
Reconciliation of the fair values at the beginning and end of the current and previous financial period are set out below: |
Opening fair value | - |  |  | - |  |
Additions | 28,332 |  |  | - |  |
Financial asset realized | (18,354) |  |  | - |  |
Unrealized loss | (3,448) |  |  | - |  |
Closing fair value | 6,530 |  |  | - |  |

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