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Finance income and costs (Tables)

6 Months Ended

Jun. 30, 2023

Finance income and costs

Summary of finance income and costs

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​	​	​	​	​	​	​
​		​		Six months ended 30 June
US$ thousand	​	Note	​	2023		2022
Finance income
Income from marketable securities		​		5,330		365
Foreign exchange gain		​		130		—
Total finance income		​		5,460		365
​	​	​	​	​	​	​
Finance costs		​
Interest expense under the effective interest rate method on:		​
– Loans and borrowings		​		(2,324)		—
– Other financial liabilities		​		(7,762)		(9,830)
– Lease liabilities		​		(41)		—
Amortisation of discount on convertible promissory note		​		—		(8)
Total finance costs		​		(10,127)		(9,838)
​	​	​	​	​	​	​
Net change in fair value measurements of financial assets and liabilities
Change in fair value of:
– Warrant liability		22		(13,624)		726
– Embedded derivative – copper and silver stream agreements		22		4,789		—
– Embedded derivative – mezzanine debt facility		22		(723)		—
– Embedded derivative – conversion option		22		—		7
Total net change in fair value of financial instruments		​		(9,558)		733
​	​	​	​	​	​	​
Net finance costs		​		(14,225)		(8,740)

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The tabular disclosure of finance income and costs.

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