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Long-term provisions (Tables) | 12 Months Ended
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Jun. 30, 2025
Long-term provisions |
Schedule of changes in long-term provisions | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | Environmental | ​ | Other | ​ | Total | ​
​ | ​ | ​ | 2025 | ​ | 2025 | ​ | 2025 | ​
for the year ended 30 June |  |  | Rm |  | Rm |  | Rm | ​
Balance at beginning of year | ​ | ​ | 16 524 | ​ | 694 | ​ | 17 218 |
Capitalised to property, plant and equipment | ​ | ​ | 264 | ​ | — | ​ | 264 |
Reduction in rehabilitation provision capitalised |  | ​ | (212) |  | — |  | (212) | ​
Per the income statement |  | ​ | (2 769) |  | (38) |  | (2 807) | ​
additional provisions and changes to existing provisions |  | ​ | (3 167) |  | (28) |  | (3 195) | ​
reversal of unutilised amounts |  | ​ | (7) |  | (11) |  | (18) | ​
effect of change in discount rate |  | ​ | 405 |  | 1 |  | 406 | ​
Notional interest |  | ​ | 1 161 |  | 6 |  | 1 167 | ​
Utilised during year (cash flow) |  | ​ | (629) |  | (140) |  | (769) | ​
Translation of foreign operations |  | ​ | (7) |  | 4 |  | (3) | ​
Foreign exchange differences recognised in income statement |  | ​ | (220) |  | (1) |  | (221) | ​
Balance at end of year |  | ​ | 14 112 |  | 525 |  | 14 637 | ​
​
Schedule of risk-free rates used to discount the estimated cash flows related to provisions | ​
​ | ​ | ​ | ​ | ​
​ | ​ | 2025 | ​ | 2024
for the year ended 30 June |  | % |  | %
South Africa |  | 7,2 – 10,5 |  | 8,1 – 10,9
Europe |  | 2,0 – 2,9 |  | 2,0 – 3,6
United States of America (for USD denominated provisions) |  | 3,5 – 4,4 |  | 3,2 – 5,4
Schedule of effect on provisions from changes in the discount rate | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 2025 | ​ | 2024 |
for the year ended 30 June |  | Rm |  | Rm |
A 1% point change in the discount rate would have the following effect on the long-term provisions recognised |  | ​ |  |  |  | ​
Increase in the discount rate |  | ​ | (1 991) |  | (2 185) | ​
amount capitalised to property, plant and equipment |  | ​ | (666) |  | (917) | ​
income recognised in income statement |  | ​ | (1 325) |  | (1 268) | ​
Decrease in the discount rate |  | ​ | 2 432 |  | 2 802 | ​
amount capitalised to property, plant and equipment |  | ​ | 808 |  | 1 375 | ​
expense recognised in income statement |  | ​ | 1 624 |  | 1 427 | ​
Schedule of expected timing of future cash flows for provisions | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  |  |  | 2025 |  | 2024
for the year ended 30 June | ​ | Note | ​ | Rm | ​ | Rm
Expected timing of future cash flows | ​ | ​ | ​ | ​ | ​ | ​
Within one year | ​ | ​ |  | 1 688 |  | 2 822
One to five years |  | ​ |  | 1 427 |  | 2 915
Five to ten years¹ |  | ​ |  | 2 967 |  | 2 208
More than ten years² | ​ | ​ | ​ | 8 555 | ​ | 9 273
​ | ​ | ​ | ​ | 14 637 | ​ | 17 218
Short-term portion | ​ | 30 | ​ | (1 688) | ​ | (2 822)
Long-term provisions | ​ | ​ | ​ | 12 949 | ​ | 14 396
Estimated undiscounted obligation* | ​ | ​ |  | 85 097 |  | 109 845
| 1 | Relates largely to the rehabilitation of coal mining, oil and gas sites in South Africa.
| 2 | Relates largely to the plugging and abandonment of gas wells in Mozambique, as well as remediation of soil and ground water contamination in South Africa.
| * | Decrease relates mainly to a reassessment of cost estimates based on optimised water treatment cost as a result of enhanced evaporating technology and other enhancements.

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