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INVESTMENTS IN REHABILITATION AND OTHER FUNDS - Environmental obligations (Details) - ZAR (R) R in Millions | 12 Months Ended
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Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2023
Changes in investments in rehabilitation obligation funds movement [abstract] |  |  |
Investment in Guardrisk Cell Captive | R 1,002.8 | R 912.5 | R 789.7
Balance at the beginning of the year | 912.5 | 789.7 |
Contributions | 0.0 | 38.3 |
Growth | 90.3 | 84.5 | R 50.5
Investments in rehabilitation and other funds | 1,002.8 | 912.5 |
Environmental rehabilitation |  |  |
Changes in investments in rehabilitation obligation funds movement [abstract] |  |  |
Investments in rehabilitation and other funds | 765.0 | 697.5 |
Directors’ and officers’ insurance |  |  |
Changes in investments in rehabilitation obligation funds movement [abstract] |  |  |
Investments in rehabilitation and other funds | 118.4 | 108.5 |
Other funds |  |  |
Changes in investments in rehabilitation obligation funds movement [abstract] |  |  |
Investments in rehabilitation and other funds | R 119.4 | R 106.5 |

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- Definition The amount of non-current financial assets measured at fair value through profit or loss that were designated as such upon initial recognition or subsequently. [Refer: Financial assets at fair value through profit or loss, designated upon initial recognition or subsequently] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2025-01-01 -Paragraph 8 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2025-en-r&anchor=para_8_a&doctype=Standard -URIDate 2025-03-27 + Details
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