Gwalia
Leonora, Western Australia
~$567 Million*
Value
13 months (to May 2026)
Duration
Genesis Minerals
Client
Macmahon has been operating at the Gwalia Gold mine in Leonora, Western Australia, since March 2021 with an initial contract value of $500 Million. In April 2025, the existing contract was terminated and a new contract established to include the nearby Ulysses Gold Mine for a 13-month period.
The scope of work for both projects includes all underground and mine development and production services and all other associated works.
The Gwalia mine is one of Australia’s oldest underground gold mines. The mine was originally established in 1897 by Herbert Hoover, who later became President of the United States.
* $500M (2021-2025 initial contract term), $67M (2025 – new contract Gwalia and Ulysses)
Macmahon focuses on retaining their graduates and this has been demonstrated in the training opportunities I have been afforded thus far. There are countless opportunities for me to add value and improve how I contribute to the business.
Janice Pandian
Graduate Mining Engineer
What We Do
We provide world-class mining and infrastructure contracting services
Surface Mining
Macmahon’s mining services has established a strong reputation within the resources sector, with surface mining operations in Australia and Southeast Asia.
Surface Mining
Underground Mining
Our underground mining capabilities range from total mine development and production to specialised services to meet the short and long-term requirements of our clients.
Underground Mining
Mining Support Services
Macmahon offers a wide range of civil construction, engineering and business improvement consulting services for projects both above and below ground.
Mining Support Services
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