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Subsidiaries
 12 Months Ended
Jun. 30, 2020
Investments accounted for using equity method [abstract]  
Subsidiaries
29    Subsidiaries
Significant subsidiaries of the Group are those with the most significant contribution to the Group’s net profit or net assets. The Group’s interest in the subsidiaries results are listed in the table below. For a complete list of the Group’s subsidiaries refer to Exhibit 8.1 - List of Subsidiaries.
 
          
Group’s interest
 
Significant subsidiaries
  
Country of
incorporation
   
Principal activity
  
2020

%
   2019
%		 
Coal
        
BHP Billiton Mitsui Coal Pty Ltd
   Australia   Coal mining  
 
80
 
   80 
Hunter Valley Energy Coal Pty Ltd
   Australia   Coal mining  
 
100
 
   100 
Copper
        
BHP Billiton Olympic Dam Corporation Pty Ltd
   Australia   Copper and uranium mining  
 
100
 
   100 
Compañia Minera Cerro Colorado Limitada
   Chile   Copper mining  
 
100
 
   100 
Minera Escondida Limitada
(1)
   Chile   Copper mining  
 
57.5
 
   57.5 
Minera Spence S.A.
   Chile   Copper mining  
 
100
 
   100 
Iron Ore
        
BHP Billiton Iron Ore Pty Ltd
   Australia   Service company  
 
100
 
   100 
BHP Billiton Minerals Pty Ltd
   Australia   Iron ore and coal mining  
 
100
 
   100 
BHP Iron Ore (Jimblebar) Pty Ltd
(2)
   Australia   Iron ore mining  
 
85
 
   85 
BHP (Towage Service) Pty Ltd
   Australia   Towing services  
 
100
 
   100 
Marketing
        
BHP Billiton Freight Singapore Pte Limited
   Singapore   Freight services  
 
100
 
   100 
BHP Billiton Marketing AG
   Switzerland   Marketing and trading  
 
100
 
   100 
BHP Billiton Marketing Asia Pte Ltd
   Singapore   Marketing support and other services  
 
100
 
   100 
Group and Unallocated
        
BHP Billiton Canada Inc.
   Canada   Potash development  
 
100
 
   100 
BHP Billiton Finance BV
   The Netherlands   Finance  
 
100
 
   100 
BHP Billiton Finance Limited
   Australia   Finance  
 
100
 
   100 
BHP Billiton Finance (USA) Ltd
   Australia   Finance  
 
100
 
   100 
BHP Billiton Nickel West Pty Ltd
   Australia   Nickel mining, smelting, refining and administrative services  
 
100
 
   100 
BHP Group Operations Pty Ltd
   Australia   Administrative services  
 
100
 
   100 
WMC Finance (USA) Limited
   Australia   Finance  
 
100
 
   100 
        
 
(1)
 
As the Group has the ability to direct the relevant activities at Minera Escondida Limitada, it has control over the entity. The assessment of the most relevant activity in this contractual arrangement is subject to judgement. The Group establishes the mine plan and the operating budget and has the ability to appoint the key management personnel, demonstrating that the Group has the existing rights to direct the relevant activities of Minera Escondida Limitada.
 
(2)
 
The Group has an effective interest of 92.5 per cent in BHP Iron Ore (Jimblebar) Pty Ltd; however, by virtue of the shareholder agreement with ITOCHU Iron Ore Australia Pty Ltd and Mitsui & Co. Iron Ore Exploration & Mining Pty Ltd, the Group’s interest in the Jimblebar mining operation is 85 per cent, which is consistent with the other respective contractual arrangements at Western Australia Iron Ore.