Copper producer Austral Resources Australia Ltd. has cleared the largest procurement hurdle in its Rocklands copper project refurbishment, confirming the arrival of a 4.75-megawatt semi-autogenous grinding (SAG) mill at its Queensland site.
The oversized components were hauled roughly 1,700 kilometres along public roads to reach Austral’s Eastern Operations near Cloncurry. Securing the equipment domestically allowed the company to sidestep the steeper capital costs and lengthy lead times associated with sourcing a mill from overseas.
The mill forms the centrepiece of a redesigned front-end processing circuit developed earlier this year with CMD Consulting and engineered through a FEED study by GR Engineering Services.
Under the simplified flowsheet, the single SAG mill replaces Rocklands’ legacy three-stage cone crushing circuit, a move designed to cut operational risk, lower capital intensity, and align the plant with conventional global copper concentrator standards.
Austral Chairman David Newling said getting the equipment to site removes the single biggest supply chain risk from the rebuild schedule.
“Being able to source an as-new mill in New South Wales was a positive outcome for us, avoiding the higher cost and longer lead time of buying one from overseas,” Newling said.
“The team has done a great job securing the approvals and managing the logistics to get the mill to site. We’ve made a significant investment to purchase this equipment and bring it to Rocklands, and we’re keen to get it installed, get it spinning and our feedstock ready as we bring Rocklands back into production.”
Austral plans to appoint a construction management contractor before the end of 2026 to oversee front-end plant modifications alongside internal teams, keeping the Rocklands facility on track to resume production in the second half of 2027.
