v3.26.3
Tax, Reconciliation of Prima Facie Tax Expense to Income Tax Expense (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Reconciliation of prima facie tax expense to income tax expense [Abstract]      
Profit/(loss) before income tax $ 46,424 $ (249,050) [1] $ (75,696) [1]
Income tax on profit/(loss) before income tax calculated at 30 per cent (2025 and 2024: 30 per cent) $ (13,927) $ 74,715 $ 22,709
Applicable tax rate 30.00% 30.00% 30.00%
Adjust for tax effect of:      
Mining tax $ (2,008) $ 93 $ 49
Non-assessable income 7,088 1,181 12
Non-deductible expenses (34,004) (7,932) (4,456)
Other assessable income 86 0 (1,263)
Other deductible expenses tax adjustment 0 0 999
Prior period adjustments 389 3,809 0
Tax losses and temporary differences not brought to account 43,891 (61,452) (17,817)
Tax rate differential on non-Australian income (3,549) (8,478) (2,577)
Total income tax benefit/(expense) $ (2,034) $ 1,936 [1] $ (2,344) [1]
[1] Refer to Note 2 (a) for details on translation of prior period comparatives to United States dollars to conform with changes in presentation currency.