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Loans and borrowings (Tables)
6 Months Ended
Jun. 30, 2023
Loans and borrowings  
Summary of carrying amounts of the Group's loans and borrowings

    

30 June

    

31 December

    

1 January

US$ thousand

2023

2022

2022

Current

 

  

 

  

 

  

Senior syndicated facility agreement

 

29,590

 

 

Copper purchase agreement

 

493

 

 

Silver purchase agreement

 

12,462

 

 

Promissory note – related party

 

 

786

 

 

42,545

 

786

 

Non-current

 

  

 

  

 

  

Mezzanine debt facility

 

75,663

 

 

Senior syndicated facility agreement

 

165,531

 

 

Copper purchase agreement

 

79,366

 

 

Silver purchase agreement

 

62,802

 

 

 

383,362

 

 

 

425,907

 

786

 

Summary of variation in the copper price used to determine the margin rate as well as the composition of interest payments

LME Copper Price

    

Margin

    

Payment

<$3.40/LB

 

12.00

%  

100% capitalised / 0% cash

>$3.40/lb to $3.85/lb

 

10.00

%  

60% capitalised / 40% cash

>$3.85/lb

 

8.00

%  

0% capitalised / 100% cash

Summary of Copper Stream Percentage under the Copper Purchase Agreement

Time Period

    

Copper Stream Percentage

    

Closing to 1st Anniversary of the Closing Date

 

0

%

1st Anniversary of the Closing Date to 5th Anniversary

 

3% (the “First Stream Percentage”)

5th Anniversary until 33,000 metric tonnes of refined copper delivered to Osisko (the “Threshold Quantity”)

 

4.875% (the “Second-Threshold Stream Percentage”)

Thereafter from the date that the Threshold Quantity has been met

 

2.25% (the “Tail Stream Percentage”)

Summary of Buy-Down Options under the Copper Purchase Agreement

    

Buy-Down Option 1

    

Buy-Down Option 2

    

Buy-Down Amount

$

40 million

$

20 million

Second-Threshold Stream Percentage

 

3.25

%  

 

4.0625

%

Tail Stream Percentage

 

1.50

%  

 

1.875

%

Threshold Quantity

 

23,900 tonnes

 

28,450 tonnes