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OTHER INVESTMENTS - Narratives (Details) | Jun. 30, 2023 | Jun. 30, 2022
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Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [table] |  |
Marketability unobservable inputs rate | 15.30% | 16.50%
Minority discounts unobservable input rate | 17.00% | 17.00%
Rand Refinery Proprietary Limited ("Rand Refinery") | Level 3 of fair value hierarchy [member] |  |
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [table] |  |
Percentage of interest held | 11.30% |

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