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v3.23.2

Remeasurement Items affecting operating profit - Assumptions (Details) | 12 Months Ended
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Jun. 30, 2023 R / $ $ / kJ $ / bbl R / T $ / gal | Jun. 30, 2022 R / $ $ / gal $ / bbl R / T $ / kJ | Jun. 30, 2021 R / $ $ / kJ $ / bbl $ / gal R / T
Impairment assumptions |  |  |
Period over which management has projected cash flows | 5 years |  |
Long-term average crude oil price (Brent) | 88.02 | 93.24 | 70.09
Long-term average ethane price | $ / gal | 0.4233 | 0.4315 | 0.3718
Long-term average ammonia price | R / T | 9,046.19 | 10,173.00 | 5,297.00
Long-term average refining margin | 12.34 | 12.23 | 9.67
Long-term average exchange rate | R / $ | 17.40 | 15.95 | 14.57
Future oil price period (in years) | 5 years | 5 years | 5 years
Future ammonia price period (in years) | 5 years | 5 years | 5 years
Future exchange rate period (in years) | 5 years | 5 years | 5 years
Future ethane price period (in years) | 10 years | 10 years | 10 years
South Africa |  |  |
Impairment assumptions |  |  |
Long-term average Southern African gas purchase price (real) | $ / kJ | 0.00001093 | 0.00000894 | 0.00000841
Growth rate - long-term Producer Price Index | 5.50% | 5.50% | 5.50%
Weighted average cost of capital | 15.20% | 14.41% | 14.03%
United States |  |  |
Impairment assumptions |  |  |
Growth rate - long-term Producer Price Index | 2.00% | 2.00% | 2.00%
Weighted average cost of capital | 9.07% | 8.13% | 7.70%
Europe |  |  |
Impairment assumptions |  |  |
Growth rate - long-term Producer Price Index | 2.00% | 2.00% | 2.00%
Europe | Minimum |  |  |
Impairment assumptions |  |  |
Weighted average cost of capital | 9.07% | 8.13% | 7.70%
Europe | Maximum |  |  |
Impairment assumptions |  |  |
Weighted average cost of capital | 10.68% | 9.57% | 9.05%

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