Provision for Environmental Rehabilitation (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Provision For Environmental Rehabilitation [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Disclosure of Rates Used in Calculation of Provision | The following rates were used in the calculation of the provision:
1In 2024, the grouping of the discount rates were updated to reflect the changes in the concentration of the lives of group’s mines. 2In 2025, the discount rates used are per a South African bond yield curve at 30 June 2025, with the period to maturity determined with reference to the life of mine.
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| Reconciliation of the total liability for environmental rehabilitation | The following is a reconciliation of the total provision for environmental rehabilitation:
(a)The change in 2025 is mainly due to the decrease in discount rates which resulted in a significant increase in the net present value of the liability. In 2024, the majority of the change related to the inclusion of the deepening project for Mponeng in its life of mine plan. This increased the number of years and together with higher discount rates resulted in a significant decrease in the net present value of the liability.
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| Disclosure of Future Net Undiscounted Obligation | While the ultimate amount of rehabilitation costs to be incurred in the future is uncertain, the group has estimated that, based on current environmental and regulatory requirements, the total undiscounted cost for the operations, in current monetary terms, is as follows:
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