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Florence Copper in situ copper recovery facility, US

30th October 2020

By: Sheila Barradas

Creamer Media Research Coordinator & Senior Deputy Editor

     

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Name of the Project
Florence Copper in situ copper recovery (ISCR) facility.
 
Location
Arizona, in the US.

Project Owner/s
Florence Copper Incorporated, a wholly owned subsidiary of Taseko Mines.

Project Description
The Florence deposit contains 2.5-billion pounds of copper in 345-million tons of probable reserves.

The project proposes to build and operate an ISCR facility and produce an average of 55-million pounds of copper a year for the first six years and 85-million pounds a year for the life-of-mine.

The full commercial life of the project is expected to be 20 years.

ISCR is an extraction method used for selected mineral deposit conditions as an alternative to openpit or underground mining methods.

The ISCR process uses a mild solution of 99.5% water and 0.5% acid that slowly dissolves copper in the bedrock. The diluted solution is pumped under low pressure through injection wells to dissolve the copper within the copper oxide zone.

Copper-rich solution is pumped to the surface through recovery wells for processing into pure copper cathode sheets.

The in situ process will occur from 122 m to 366 m below ground in a bedrock layer beneath the lower aquifer unit from where local drinking water supplies are withdrawn.

Potential Job Creation
Not stated.

Net Present Value/Internal Rate of Return
The project has a pretax net present value, at a 7.5% discount rate, of $920-million and an internal rate of return of 44%, with a payback of 2.3 years.

Capital Expenditure
The project has an initial capital expenditure of $227-million.

Planned Start /End Date
The company is targeting to have all necessary final permits for the project in early 2021.

Latest Developments
While discussions with potential lenders and finance providers for the development of the Florence copper project remain ongoing, Taseko is also exploring the sale of a minority interest in the project to help develop the commercial operation.

The company has said that discussions with interested parties are “advanced” and that a sale could fund a “significant” portion of the capital required for the project.

Taseko aims to have a committed financing package in place before the receipt of its final permits. The company still requires one key permit to advance to production, which it expects to receive by early 2021.

Key Contracts, Suppliers and Consultants
None stated.

Contact Details for Project Information
Florence Copper Incorporated manager of communications and public affairs Stacy Gramazio, tel +1 520 374 3984 or email stacygramazio@florencecopper.com.

Edited by Creamer Media Reporter

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