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Deposits and prepayments
 3 Months Ended
Sep. 30, 2025
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Deposits and prepayments
Note 7. Deposits and prepayments
The components of deposits and prepaid expenses are as follows:
(in USD thousands)September 30,
2025		June 30,
2025
Current
Prepayments$29,368 $33,015 
Security deposits13,099 12,894 
Computer hardware prepayments10,808 —
Total current deposits and prepaid expenses$53,275 $45,908 
Non-current
Security deposits$30,456 $29,847 
Computer hardware prepayments— 3,068 
Total non-current deposits and prepaid expenses$30,456 $32,916 
Total deposits and prepaid expenses$83,731 $78,824 
Prepayments
The decrease in prepayments was primarily attributable to a reduction in electricity prepayments at the Childress site due to seasonality, partially offset by an increase in insurance renewal prepayments.
Security deposits
Security deposits at September 30, 2025 and June 30, 2025, include deposits paid for expansion projects in British Columbia, Canada, Oklahoma, USA and West Texas, USA.
Computer hardware prepayments
Computer hardware prepayments represent payments made by the Group for the purchase of mining and AI hardware that are yet to be delivered as of September 30, 2025 and June 30, 2025. These prepayments are in accordance with payment schedules set out in relevant purchase agreements with hardware manufacturers.