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Key developments - Kensington litigation settlement (Details) - Kensington $ in Thousands, oz in Millions |  | 1 Months Ended |
--- | --- | --- | ---
Mar. 28, 2024 USD ($) oz | Apr. 30, 2024 USD ($) | Mar. 31, 2025 USD ($)
Key Developments |  |  |
Consideration to be received | $ 6,750 |  | $ 3,750
Consideration received |  | $ 3,000 |
Subjected cap of ounces of gold for net smelter return royalty | oz | 2 |  |
Period from January 1, 2024 through to December 31, 2026 |  |  |
Key Developments |  |  |
Rate of net smelter returns for payment of royalty (in percent) | 1.25% |  |
Period from January 1, 2027 |  |  |
Key Developments |  |  |
Rate of net smelter returns for payment of royalty (in percent) | 1.50% |  |

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