The Kanmantoo mine is located just out of Adelaide and operated as a series of open pits from 2010 to 2020, producing around 137kt of copper and over 55k oz of gold. Underground mining commenced in May 2023, with commercial production declared in July 2024.

The successful mining ramp up and plant commissioning at the Kanmantoo Copper Mine has established a solid platform for delivery.

The mine is well capitalised with significant infrastructure in place including a 3.6Mtpa processing plant. It is connected to market via Port Adelaide which is only 75km away. At port we transfer ownership and receive 95% of the sales proceeds, helping to keep working capital requirements low.

The successful completion of the Nugent Acceleration Project, together with the recently finished Nugent Decline, provides a robust platform for growth in 2026. The underground operation remains firmly on track to achieve a mining rate of 1.7-1.8 million tonnes per annum in H1 2026, with copper production forecast to increase to 2026 guidance range of 12,750-14,000 tonnes.

Costs are forecast to ease in H2 2026 when increased mining rates drive lower unit operating costs. All-in Sustaining Cost guidance for 2026 of $5.75-6.25/lb payable Cu sold (US$3.80-4.19/lb).

Major capital at Kanmantoo for the period, encompassing the Emily Star and North Kavanagh exploration inclines, along with associated underground and surface drilling, is estimated at $8-10 million.

The Kanmantoo project is approximately 55km from Adelaide. It is connected to market via Port Adelaide which is only 70km away. At port we transfer ownership and receive 95% of the sales proceeds, helping to keep working capital requirements low.

In 2023 a Fraser Institute report ranked South Australia as the ninth most attractive mining investment jurisdiction in the world.

Kanmantoo’s position in the majestic Adelaide Hills also makes Hillgrove an attractive employer of choice, with >95 per cent of our workforce living locally. Our employees have access to:

All of this has resulted in a strong interest in being part of the Kanmantoo underground mine, where we are building a great culture with a mix of experienced mining professionals and local residents entering the mining industry for the first time. If you are interested in learning more about employment opportunities, take a look at our careers page.

Underground mining has ramped up on plan since commencing in May 2023. Ground conditions are very competent which assists in achieving high rates of productivity.

The open pit, which was mined to a depth of 360m, is a key part of the mine’s infrastructure. The ramp inside the pit wall allows for quick, low-cost access to two portals to establish declines to open up multiple working areas in the underground mine.

Lodes are very close to the pit wall with high grade copper being mined a short distance from the portals in the early years of the mine plan.