Idemitsu Australia Resources Pty Ltd (IAR) is a foreign-owned private company that generates its revenue from the provision of coal. The company employs 475 people across its operations in Australia and is headquartered in Brisbane.

Idemitsu Australia’s ultimate parent is the Japanese-based petroleum provider, Idemitsu Kosan Co Ltd.


Idemitsu Australia Resources Pty Ltd (IAR) is involved in the exploration, mining and distribution of coal in Australia. The company’s current operations include:

  • Muswellbrook Coal Company (MCC) - is engaged in underground coal mining and truck and shovel multi-seam coal mine activities.
  • Boggabri Coal Mine - the open-cut coal operation is 80% owned by the company’s wholly-owned subsidiary, Boggabri Coal Pty Ltd.  
  • Ensham Resources - is 85% owned by Bligh Coal Limited (a wholly-owned subsidiary of Idemitsu Australia) and includes an underground mine and 5 open-cut coal mining pits.
  • Tarrawonga JV - the company holds a 30% stake in the joint venture located in New South Wales.      

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