Name of the Project
McPhillamys gold project.

Location
Central Tablelands of New South Wales, Australia.

Project Owner/s
Regis Resources, through its wholly owned subsidiary LFB Resources NL.

Project Description
The project has a mineral resource of 70-million tonnes grading 1 g/t gold for 2.26-million ounces comprising 61-million tonnes at 1 g/t for 2.07-million ounces in the indicated category and eight-million tonnes at 0.7 g/t for 190 000 oz in the inferred category.

The project is planned as a conventional openpit gold operation with 9.4 years of processing. 

The June 2026 prefeasibility study (PFS) envisages treating 60.6-million tonnes of ore at an average 6.4-million tonnes a year, with capacity of up to about seven-million tonnes a year, depending on ore type. 

Average yearly gold production is estimated at 189 800 oz, with total life-of-mine production estimated at 1.73-million ounces.

Mining will use conventional drill, blast, load and haul methods. The process flowsheet includes two-stage crushing, closed-circuit high-pressure grinding rolls, primary ball milling, two vertical regrind mills, preleach thickening, carbon-in-leach processing, cyanide detoxification and tailings filtration, as well as elution, electrowinning and smelting.

The alternative development pathway uses filtered tailings co-disposed with mine waste in an integrated waste landform. 

The PFS assumes contract mining, as well as build, own, operate and maintain electricity infrastructure; water will be supplied under a water offtake deed.

Potential Job Creation
Earlier company estimates indicated about 480 mine-construction jobs, 260 operational jobs and 120 water-pipeline construction jobs. The June 2026 PFS provides no revised employment estimate.

Net Present Value/Internal Rate of Return
At the PFS base case gold price of A$4 000/oz, the estimated after-tax net present value, at a 5.5% discount rate, is A$1.13-billion and the internal rate of return 21.8%, with a payback of 3.7 years.

Capital Expenditure
Total preproduction capital is estimated at A$1.077-billion, including A$1-billion in construction costs and A$77-million in capitalised preproduction operating costs. 

Planned Start/End Date
Regis is targeting a final investment decision in the first half of 2028, subject to the required approvals, an updated definitive feasibility study and board approval. 

Latest Developments
Regis is progressing the integrated waste landform and original valley-fill tailings storage facility pathways. 

Studies and field surveys are under way, covering the integrated waste landform, water pipeline and electricity line. 

Secretary’s Environmental Assessment Requirements were issued in December 2025 and federal Controlled Action decisions were received in March 2026.

Key Contracts, Suppliers and Consultants
None named. 

Contact Details for Project Information
Regis Resources, tel +61 8 9442 2200 or email enquiries@regisresources.com.