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Olympic Dam growth projects, Australia

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5th December 2025

By: Sheila Barradas

Creamer Media Research Coordinator & Senior Deputy Editor

     

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Name of the Project
Olympic Dam growth projects.

Location
In the far north of South Australia.

Project Owner/s
Multinational mining company BHP.

Project Description
BHP is investing in a series of growth-enabling projects at its Olympic Dam copper mine to strengthen the foundations of underground mining productivity and continue building its world-class copper province.

The growth projects include:

  • an underground access tunnel into the Southern Mine Area. The decline will improve access to the underground mine and streamline the transportation of materials and 
  • equipment.
  • a new backfill system to deliver paste fill through underground pipes to new areas of the 
  • mine.
  • expanding ore pass capacity, streamlining ore handling and reducing haulage distances, supported by new locomotives and an extended underground electric rail network.
  • the installation of a new oxygen plant to improve smelter performance and support increasing copper concentrate smelting rates from 80 t/h to 85 t/h.

Potential Job Creation
The project is expected to create almost 200 construction jobs throughout the project development.

Net Present Value/Internal Rate of Return
Not disclosed.

Capital Expenditure
A$840-million.

Planned Start/End Date
Not stated.

Latest Developments
None stated.

Key Contracts, Suppliers and Consultants
None stated.

Contact Details for Project Information
BHP, tel +61 39 415 4020.

Edited by Martin Zhuwakinyu
Creamer Media Senior Deputy Editor

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