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Chile
Gabriela Mistral Mine

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 Location:
106 km S from Calama, Chile
  Address:
Nueva Oriente 2696, Villa Exótica
Calama
Chile
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News
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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Copper
Mining Method
  • Truck & Shovel / Loader
Processing
  • Sulfuric acid (reagent)
  • Crush & Screen plant
  • Heap leach
  • Solvent Extraction & Electrowinning
Mine Life10 years (as of Jan 1, 2015)

Owners

Source: p. 16, 24,351
CompanyInterestOwnership
Codelco Corp. 100 % Indirect
In 1997, Codelco inaugurated the first operation led by Chileans, the Radomiro Tomic mine, then the Gabriela Mistral in 2008.

Codelco Corp. operates seven mine sites (known as “divisiones”): Chuquicamata, Ministro Hales, Radomiro Tomic, Gabriela Mistral, Salvador, Andina, El Teniente, in addition to the Ventanas Smelter and Refinery.
Deposit Type

  • Porphyry

Summary:

Porphyry copper deposit, its main mineralized body is oxidized in a mineralized zone, mainly Chrysocolla, Black and Atacamite oxides in low presence, deposited under sterile coverage of post mineral gravels with an average thickness of 50 m.

Mining Methods

  • Truck & Shovel / Loader

Summary:

Gabriela Mistral in it´s 8th Division operates the largest fleet of autonomous trucks in the world. A fleet of 17 Komatsu 930E4 AT Trucks, allowing to transport 210,000 ton/day of materials.

Crushing and Grinding

Processing

  • Sulfuric acid (reagent)
  • Crush & Screen plant
  • Heap leach
  • Solvent Extraction & Electrowinning

Source: Subscription required

Summary:

The production process involves different stages: crushing (primary, secondary and tertiary), acid curing in drums, heap leaching, tailings disposal, solvent extraction (SX), electro-winning (EW), and the cathodes produced are transported to the Mejillones port.

Recoveries & Grades:

CommodityParameter201920182017
Copper Head Grade, %  ......  Subscription required0.370.43

Production:

CommodityUnits2020201920182017201620152014
Copper t  ......  Subscription required  ......  Subscription required107,247122,737121,712125,009121,012
All production numbers are expressed as cathode.
Subscription required - Subscription is required.

Operational Metrics:

Metrics2019201820172013
Ore tonnes mined 38,180 kdmt39,430 kdmt40,503 kdmt
Daily mining capacity 210,000 t
Annual mining capacity 76 Mt

Reserves at December 31, 2020:

CategoryTonnage CommodityGradeContained Metal
Proven 252 Mt Copper 0.35 % 0.9 Mt
Probable 35 Mt Copper 0.33 % 0.1 Mt
Proven & Probable 287 Mt Copper 0.34 % 1 Mt
Measured 259 Mt Copper 0.34 % 0.9 Mt
Indicated 43 Mt Copper 0.32 % 0.1 Mt
Inferred 107 Mt Copper 0.34 % 0.4 Mt
Total Resource 409 Mt Copper 0.34 % 1.4 Mt

Commodity Production Costs:

CommodityUnits20192018201720162015
C1 cash costs Copper USD  ......  Subscription required 1.92 / lb 1.52 / lb 1.44 / lb 1.6 / lb
Subscription required - Subscription is required.

Financials:

Units202020192018201720162015
Revenue M USD  ......  Subscription required  ......  Subscription required644  901.4   609.6   664.6  
Gross profit M USD  ......  Subscription required  ......  Subscription required102.6  251.9   95.3   97.4  
Pre-tax Income M USD  ......  Subscription required  ......  Subscription required-4.3  121.8   -6.1   2.7  
After-tax Income M USD  ......  Subscription required  ......  Subscription required-1.4  44.1   -7.7   1  
Subscription required - Subscription is required

Heavy Mobile Equipment as of January 1, 2013:
HME TypeModelSizeQuantity
Backhoe ....................... Subscription required
Dozer (crawler) ....................... Subscription required
Dozer (rubber tire) ....................... Subscription required
Drill ....................... Subscription required
Grader ....................... Subscription required
Loader ....................... Subscription required
Shovel 73 cu. yd ....................... Subscription required
Truck (haul) ....................... Subscription required 330 t ....................... Subscription required
Truck (water) ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jun 22, 2021
....................... Subscription required ....................... Subscription required Subscription required Jun 22, 2021
....................... Subscription required ....................... Subscription required Subscription required Jun 22, 2021
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2020
Subscription required 2019
Subscription required 2018
Subscription required 2017
Subscription required 2016
Subscription required 2015
Subscription required 2014

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Corporate Presentation 2018
Annual Report 2017
Corporate Presentation 2017
Annual Report 2016
Corporate Presentation 2016
Financial Review 2016
Annual Report 2015
Other 2013
Subscription required - Subscription is required.

Aerial view:

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