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Boleo SxEw copper mine

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12 March 2018

Boleo SxEw copper mine

Report summary

The mine started operating in 2015. The initial proposed Boleo project comprised an underground mine, supplemented by production from a series of open pits to feed 3.1Mt/a of ROM ore to a hydro-metallurgical facility designed to produce up to 55kt/a of cathode grade copper, 2.2kt/a of cobalt cathode and 45kt/a of zinc sulphate. The area of the mine was previously exploited for its copper reserves from 1888 until 1972 with approximately 18Mt of ore treated.

Table of contents

  • Key facts
    • Summary
    • The mine started pre-production operations in 2015, with commercial production in 2016. The initial proposed Boleo project comprised an underground mine, supplemented by production from a series of open pits to feed 3.1Mt/a of ROM ore to a hydro-metallurgical facility designed to produce up to 55kt/a of cathode grade copper, 2.2kt/a of cobalt cathode and 45kt/a of zinc sulphate.
    • The area of the mine was previously exploited for its copper reserves from 1888 until 1972 with approximately 18Mt of ore treated. Ore was mined underground from thin seams using labour-intensive methods and a low-level of mechanisation. Ore was sent for direct smelting, and anything under 3% copper was considered waste. No previous attempt was made to remove zinc and cobalt.
    • Key issues
    • A feasibility study for potential production of 100kt/a manganese in the form of a carbonate was scheduled to begin in H1 2011. This study has yet to be undertaken. Manganese production has been excluded from the accompanying analysis until the viability of the proposed extraction process is supported by a technical report.
    • As of October 2011, construction was reported to be underway, and the first stage of surface and underground mining activities had commenced. Production was expected to ramp up over 18 months and first commercial production was originally scheduled for 2013.
    • By end-September 2014, total capital expenditure incurred was $1.751 billion and it was estimated that a further $200 million was required to bring the project to commercial production. These estimates have been includes in the accompanying analysis.
    • The operation commenced commercial production in 2016. In April 2017, the decision was made not to produce manganese at the operation.
  • Location maps
  • Participation
  • Geology
  • Reserves and resources
    • CAPEX
    • Mining
    • Processing
  • Timeline

Tables and charts

This report includes 3 images and tables including:

  • Key facts: Table 1
  • Detailed map
  • Reserves and resources: Table 1

What's included

This report contains:

  • Document

    Boleo SxEw copper mine project

    XLS 543.00 KB

  • Document

    Boleo SxEw copper mine

    PDF 468.75 KB

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