Contingent liabilities (Details) Tsh in Thousands |
1 Months Ended | 3 Months Ended | 9 Months Ended | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
May 31, 2026
USD ($)
|
May 31, 2026
TZS (Tsh)
|
May 31, 2025
USD ($)
|
May 31, 2025
TZS (Tsh)
|
Sep. 30, 2026
USD ($)
|
Sep. 30, 2025
USD ($)
|
Mar. 31, 2022
USD ($)
|
Mar. 31, 2022
TZS (Tsh)
|
Sep. 30, 2026
USD ($)
|
Sep. 30, 2025
USD ($)
|
Sep. 30, 2026
TZS (Tsh)
|
Dec. 31, 2025
USD ($)
|
Jul. 30, 2024
USD ($)
|
Jul. 30, 2024
TZS (Tsh)
|
Dec. 31, 2023
USD ($)
|
|
| Disclosure of contingent liabilities [line items] | |||||||||||||||
| Other current provisions | $ 3,197,497 | $ 3,197,497 | $ 3,438,235 | Tsh 8,430,000 | |||||||||||
| Interest paid | 4,278,974 | 4,278,974 | |||||||||||||
| Withholding tax expense | 211,425 | $ 0 | 386,534 | $ 0 | |||||||||||
| VAT payable | 70,225 | 70,225 | $ 12,684 | $ 266,524 | |||||||||||
| Tax contingent liability | |||||||||||||||
| Disclosure of contingent liabilities [line items] | |||||||||||||||
| Unpaid taxes | $ 705,779 | Tsh 1,860,000 | |||||||||||||
| Interest on unpaid taxes | $ 281,580 | Tsh 740,000 | 68,063 | 179,690 | |||||||||||
| Penalty on unpaid taxes | $ 5,430,000 | Tsh 14,330,000 | |||||||||||||
| Kabanga Nickel Company Ltd | |||||||||||||||
| Disclosure of contingent liabilities [line items] | |||||||||||||||
| Other current provisions | $ 3,440,000 | ||||||||||||||
| Interest paid | $ 4,680,000 | $ 4,680,000 | Tsh 12,360,000 | ||||||||||||
| Withholding tax expense | $ 186,271 | Tsh 491,760 | |||||||||||||