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Long-term provisions (Tables) | 12 Months Ended
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Jun. 30, 2023
Long-term provisions |
Schedule of changes in long-term provisions | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | Environmental | ​ | Other | ​ | Total | ​
​ | ​ | ​ | 2023 | ​ | 2023 | ​ | 2023 | ​
for the year ended 30 June |  |  | Rm |  | Rm |  | Rm | ​
Balance at beginning of year | ​ | ​ | 17 207 | ​ | 808 | ​ | 18 015 |
Capitalised to property, plant and equipment | ​ | ​ | 50 | ​ | — | ​ | 50 |
Reduction in rehabilitation provision capitalised1 |  | ​ | (644) |  | — |  | (644) | ​
Per the income statement |  | ​ | (708) |  | (10) |  | (718) | ​
additional provisions and changes to existing provisions |  | ​ | 121 |  | (1) |  | 120 | ​
reversal of unutilised amounts |  | ​ | (36) |  | — |  | (36) | ​
effect of change in discount rate |  | ​ | (793) |  | (9) |  | (802) | ​
Notional interest |  | ​ | 1 099 |  | 10 |  | 1 109 | ​
Utilised during year (cash flow) |  | ​ | (741) |  | (70) |  | (811) | ​
Translation of foreign operations |  | ​ | 172 |  | 88 |  | 260 | ​
Foreign exchange differences recognised in income statement |  | ​ | 858 |  | 13 |  | 871 | ​
Balance at end of year |  | ​ | 17 293 |  | 839 |  | 18 132 | ​
| 1 | Decrease in rehabilitation provision capitalised in 2023 relates primarily to an increase in discount rates.
Schedule of expected timing of future cash flows for provisions | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | 2023 | ​ | 2022 |
for the year ended 30 June |  | Note |  | Rm |  | Rm |
Expected timing of future cash flows | ​ | ​ |  | ​ |  | ​ | ​
Within one year | ​ | ​ |  | 2 601 |  | 1 465 | ​
One to five years | ​ | ​ |  | 6 060 |  | 5 429 | ​
More than five years | ​ | ​ |  | 9 471 |  | 11 121 | ​
​ | ​ | ​ |  | 18 132 |  | 18 015 | ​
Short-term portion |  | 31 |  | (2 601) |  | (1 465) | ​
Long-term provisions | ​ | ​ |  | 15 531 |  | 16 550 | ​
Estimated undiscounted obligation* | ​ | ​ |  | 114 986 |  | 105 792 | ​
| * | Increase relates mainly to a reassessment of cost estimates and volumes used in the environmental provisions.
Schedule of risk-free rates used to discount the estimated cash flows related to provisions | ​
​ | ​ | ​ | ​ | ​
​ | ​ | 2023 | ​ | 2022
for the year ended 30 June |  | % |  | %
South Africa |  | 8,7 to 10,9 |  | 6,6 to 10,1
Europe |  | 2,0 to 4,0 |  | 0,6 to 2,4
United States of America |  | 2,7 to 5,7 |  | 2,2 to 3,3
Schedule of effect on provisions from changes in the discount rate | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 2023 | ​ | 2022 |
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 |  | ​ | (4 250) |  | (4 405) | ​
amount capitalised to property, plant and equipment |  | ​ | (858) |  | (1 237) | ​
income recognised in income statement |  | ​ | (3 392) |  | (3 168) | ​
Decrease in the discount rate |  | ​ | 5 338 |  | 5 474 | ​
amount capitalised to property, plant and equipment |  | ​ | 1 518 |  | 1 646 | ​
expense recognised in income statement |  | ​ | 3 820 |  | 3 828 | ​

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