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Indonesia Underground Mining Engineering

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Transferring of our open pit mines to underground mine in Indonesia due to its increasing mining depth. Underground mining will occur between +40m and -700m (-700 and below are unexplored areas)


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Zone 3 Mine is chosen for the first underground mining development due to its high level of exploration, completed open pit production and easier access to haul road.

Our mines total resources: abundant reserves with estimated production of 0.9Mt / Annum.Picture16

Coal Qualities: low sulfur, low ash, thermal coal with high calorific value.Picture11

Underground mining aims to:

  • Maximize the utilization of deep coal resource which will maintain and¬†promote economic development.
  • Maintain sustainable coal production with the current open pit productions are close to end.


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