Name of the Project
Eva copper project.

Location
Queensland, Australia.

Client
Copper Mountain Mining Corporation.

Project Description
A feasibility study has demonstrated the quality and size of the Eva copper project.

Mineral reserves (sulphide only) have been estimated at 117.04-million tonnes grading 0.4% copper and 0.07 g/t gold.

The study envisages a moderate sized truck-and-shovel copper/gold openpit mining operation.

The mine plan includes production of 334-million tonnes of ore and waste from the project’s five deposits – Little Eva, Turkey Creek, Bedford, Lady Clayre and Ivy Ann – over an initial mine life of 12 years. Total ore mined is expected to be 117-million tonnes and total waste is expected to be 217-million tonnes, for a waste to ore strip ratio of 1.86:1.

With an overall sulphide copper recovery of 93% and gold recovery of 78%, the project’s average production is expected to be about 90-million pounds of copper a year and 19 000 oz/y of gold, which is equal to 98-million copper equivalent pounds, based on base case metal prices and estimated recoveries. Total copper produced is estimated at 959-million pounds. Ore will be mined using conventional earthmoving equipment and will be transported to a processing plant on haulage roads.

The process plan calls for an average throughput of 28 000 t/d for the first five years and 25 500 t/d for the remaining life-of-mine based on the hardness variability incorporated into the geometallurgical model of the deposit.

The processing plant and tailings management facility will be built on site.

The flowsheet comprises primary crushing, and primary and secondary grinding using a semiautogenous-ball mill circuit, followed by flotation to recover copper and gold in concentrate form. The flotation concentrate will be thickened, filtered and stockpiled for shipping to the Mount Isa smelter, which is located 195 km west of Eva.

Copper production is estimated at 959.26-million pounds and gold production 203 000 oz.

Potential Job Creation
Not stated.

Net Present Value/Internal Rate of Return
The project has an after-tax net present value, at an 8% discount rate, of $256-million and an internal rate of return of 28%.

Value
Development capital is estimated at $350-million.

Duration
Not stated.

Latest Developments
A metallurgical testwork programme is under way and is expected to be completed in early 2019.

Key Contracts and Suppliers
None stated.

On Budget and on Time?
Not stated.

Contact Details for Project Information
Copper Mountain, tel +1604 682 2992 or email Dan@CuMtn.com.