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Fair value measurement - Copper stream embedded derivative, key inputs were used (Details) - Copper stream embedded derivative	Jun. 30, 2023
Spot price
Key inputs used for valuation
Significant unobservable input, asset	8,323
Price volatility
Key inputs used for valuation
Significant unobservable input, asset	26.35
Own credit spread
Key inputs used for valuation
Significant unobservable input, asset	9.49
Average price
Key inputs used for valuation
Significant unobservable input, asset	8,341

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

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- Definition

The value of significant unobservable input used in the measurement of the fair value of assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 13
-IssueDate 2023-01-01
-Paragraph 93
-Subparagraph d
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2023-en-r&anchor=para_93_d&doctype=Standard
-URIDate 2023-03-23

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