v3.26.3
Impairment of Non-Financial Assets (Tables)
 12 Months Ended
Jun. 30, 2026
Impairment of Non-Financial Assets [Abstract]  
Impairment of Non-Financial Assets

   
2026
$’000
    
2025
$’000
    
2024
$’000
  
Reversal of impairment/(impairment and write down) of non-financial assets
                  
Property, plant and equipment
                  
Capital works in progress
    
3,621
      
(8,669
)
    
(3,272
)
Exploration and evaluation
    
–
      
–
      
(7,917
)
Land and buildings
    
16,842
      
(16,367
)
    
–
  
Mine properties
    
36,885
      
(43,895
)
    
–
  
Plant and equipment
    
98,665
      
(106,681
)
    
–
  
Total reversal of impairment/(impairment and write down) of non-financial assets
    
156,013
      
(175,612
)
    
(11,189
)
 
(1)
The impairment reversal of $156.0 million for the year ended 30 June 2026 relates to North American Lithium and includes an allocation of $0.4 million to right-of-use assets.
Key Assumptions Used in the Determination of Fair Value less Cost of Disposal
Key assumptions (real)
  
31 December
2025 (1)
    
30 June
2025
  
Spodumene concentrate prices (US$ per tonne)
  

US$986 – US$1,775
    

US$655 – US$1,374
  
Foreign exchange rates (CAD/USD)
    
0.7200
      
0.7332
  
Unit operating costs (C$ per tonne)
  

C$597 – C$1,269
    

C$923 – C$1,231
  
Discount rate (post-tax)
    
10.0
%
    
10.0
%

(1)
 For the half year ended 31 December 2025, the Group identified several indicators of impairment reversal for NAL, which subsequently led to an assessment of the carrying value of the NAL CGU. No indicators of impairment were present as at 30 June 2026 and therefore no impairment testing was performed at the end of the reporting period.