Prominent Hill

Prominent Hill reliably produces one of the highest grades of copper concentrate on the market. A high-quality, dependable asset, it has delivered on its annual production guidance for the past six years for some of the lowest production costs in the world

A key part of our Global Copper strategy, the Prominent Hill mine’s ongoing success has helped us to grow sustainably and explore new areas of investment. The Antakirinja Matu-Yankunytjatjara peoples are the traditional owners of the land.

Learn more about Where We Work


Product: High-quality copper concentrate (containing gold and silver)
Underground mining production rate: ~4.0Mtpa
Mine life: ~15 years
Location: 650km north-west of Adelaide, 130km south-east of the town of Coober Pedy.
Mining method: Underground open stoping mine (Ankata and Malu mine areas, Wira Shaft mine expansion in construction)
Processing method: Conventional crushing, grinding and flotation processing plant

Current resource and reserves



  • 2009 - Malu open pit mine commissioned
  • 2012 - Ankata Underground Mine Expansion commissioned
  • 2015 - Malu Underground Mine Expansion commissioned
  • 2017 - Expansion of the underground operation with new northern decline (Liru)
  • 2018 - Malu open pit safely closed after more than 100 Mt of ore was mined over 10 years
  • 2019 - Underground ramp up to 4.0Mt
    • Prominent Hill Expansion Study commenced
    • Premiers Award for Explorer’s Challenge
  • 2020 - Premier’s Award for Community
  • 2021 - Wira Shaft Mine Expansion investment approved


Going Beyond at Prominent Hill

Our Prominent Hill team are consistently recognised for their mining innovation and the value they create for their stakeholders. We know that to be successful and sustainable, we need to invest in upskilling our people and thinking differently about mining.

Prominent Hill represents a unique opportunity for our team to go beyond what’s possible to find new ways to create value and better ways to mine safely and efficiently.

Case study: Prominent Hill Explorers Challenge

Exploration teams typically take around one year to generate one deposit model.

In 2019, Prominent Hill, in partnership with Unearthed, ran an online crowdsourcing competition that called on global innovators to test the limits of geology and data science by developing ground-breaking approaches to mineral exploration and unearthing new exploration target.

For the Explorer Challenge, over 1,000 innovators generated not one, but 37 valid models over three months.

We know that to achieve real breakthroughs, we need to think about, and design mines, very differently and collaborate widely.

Learn more about How We Work.

Prominent Hill Explorers Challenge

Working at Prominent Hill

If you want to be a part of a high-performing team at one of the highest-quality copper assets in the world, learn more about Working With Us.



Latest News at Prominent Hill