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Tropicana

Tropicana comprises a series of open pits and an underground mine located 200km east of Sunrise Dam and 330km east-northeast of Kalgoorlie in Western Australia.

Ownership

70%
AngloGold Ashanti

Workforce
Workforce
608
including contractors
Mineral Resource
Zen rocks
5.35Moz
of gold
Gold production
298Koz
2019: 360Koz
All-in sustaining costs
$1,061/oz
2019: $757/oz
Contribution to group production

10%

Tropicana is a joint venture between AngloGold Ashanti Australia Ltd (70%) which manages the mines, and Regis Resources Ltd (30%).

Open pit and underground mining is carried out by Macmahon under an alliance contract. Open pit mining uses conventional drill and blast and load and haul methods, while underground mining uses jumbo development and mechanised open stoping. Since start-up, ore has been sourced from the Tropicana, Havana, Havana South and Boston Shaker pits. From 2021-2023 the Boston Shaker pit will be the main source of open cut ore while a major cutback of the Havana pit is carried out. Open pit material will be supplemented by approximately 1.2 Mtpa of ore mined from the Boston Shaker underground mine, and stockpiles.

The Tropicana processing plant has achieved a throughput capacity of between 8-9 Mtpa following several upgrades, including the installation of a second ball mill. The processing plant comprises a three-stage crushing circuit, inclusive of energy-efficient high pressure grinding rolls, followed by conventional ball mill grinding and CIL recovery.

Tropicana’s infrastructure includes a gas-fired power station, sealed airstrip, workshops, two borefields, a tailings facility and a modern village complex.

A brief history

  • Open pit mining began during 2012 with first gold production occurring during September 2013.
  • Underground mining commenced in 2019 at Boston Shaker after a positive FS.
  • Tropicana reached the 3Moz produced milestone during the first quarter of 2020.
  • First stoping in the Boston Shaker underground mine occurred in June 2020 and the mine achieved commercial production in September 2020.
  • On 22 April 2021, Regis Resources acquired the 30% stake in Tropicana from IGO.
Map Australia, location of Tropicana

ESG statistics 2020

All injury frequency rate

3.75 per million hours worked
(2019: 3.14)

Community investment

$812m*
(2019: $701m)

Payments to government

$129m
(2019: $95m)

Reportable environmental incidents

0 (2019: 0)

Water use

7,071ML
(2019: 6,801ML)

Water use efficiency

0.81KL/t
(2019: 0.79KL/t)

Energy consumption

4.97PJ
(2019: 5.01PJ)

Energy use intensity

0.56GJ/t
(2019: 0.58GJ/t)

GHG emissions

297kt
(2019: 303kt)

GHG emission intensity

34kg/t CO2e
(2019: 35kg/t CO2e)

Cyanide use

713t
(2019: 773t)

Rehabilitation liabilities

$58m
(2019: $51m)

* Total for Australia region

Related stories

Tropicana implements programme to address sleep disorders

AngloGold Ashanti’s Tropicana gold mine in Australia rolled out a programme based on improving health, safety and productivity outcomes by identifying and supporting people with sleep disorders.

Autonomous drill improves safety at Tropicana

In 2020, AngloGold Ashanti rolled out a $6 million autonomous drill fleet at Tropicana mine. It’s an industry first for hard rock mining and is making working practices safer and increasing operating efficiencies.

Strong Minds, Strong Mines

AngloGold Ashanti Australia rolled out the award-winning Strong Minds, Strong Mines (SMSM) programme across its sites in the second half of 2020 as part of its new Wellbeing@AGAA Strategy.

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