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Brazil
Salobo Mine

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 Location:
159 km SW from Maraba, Brazil

  Address:
Terminal Distante
Carraro
Brazil
68516-000
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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Copper
  • Gold
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life2053
The Salobo III copper project, approved in October 2018 by the Board of Directors, is a brownfield expansion of Salobo operations, increasing processing throughput capacity. The project encompasses a third concentrator line and will use Salobo’s existing infrastructure. Salobo III is expected to produce an average copper volume of approximately 50 ktpy in the first 5 years, 42 ktpy in the first 10 years and 36 ktpy throughout the life of mine. Start-up is scheduled for the second half of 2022 with a ramp up of 15 months. In 2021, the project achieved 85% of the physical progress completion, with civil works nearly complete, electro mechanical assembly well advanced and the main substation commissioned energized.


Owners

Source: p. 86, 88
CompanyInterestOwnership
Vale S.A. 100 % Indirect
Salobo Metais S.A. (operator) 100 % Direct

Contractors

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Deposit Type

  • IOCG


Summary:

There appear to be two classes of copper–gold deposits in the Carajás region. The first roup includes Cu–Au–(W–Bi–Sn) deposits which contain quartz veins, and may or may not have associated iron oxides and are genetically related to the cooling of Palaeoproterozoic (ca. 1.88 Ga) granites. The second group includes iron oxide Cu–Au (±U–rare earth elements) deposits (e.g., Salobo, Sossego, Cristalino, 118 and Igarapé Bahia) that may be related to more alkaline rocks, including the ca. 2.57 Ga alkaline complexes of the Carajás belt (e.g., Estrela Complex, Old Salobo Granite) and the base metal mineralization-associated 1.88 Ga intrusives. The second group of deposits are commonly referred to as iron oxide copper gold deposits (IOCG). Global examples of IOCG deposits include Olympic Dam in Australia, Candelaria–Punta del Cobre in Chile, and Sossego in Brazil.

Mineralization at the Salobo deposit is hosted by upper greenschist to lower amphibolite metamorphosed rocks of the Igarapé Salobo Group. The group thickness varies from 300–600 m in the Project area, and may be weathered to depths of 30–100 m. The rocks strike approximately N70°W and have a subvertical dip.

The major host units are biotite (BDX) and magnetite schists (XMT). Granitic intrusions (GR) occur adjacent to the north and southern sides of the BDX and XMT, and a series of much younger diorite dykes (DB) cross-cut the mineralization forming barren zones.

The Salobo deposit extends ove ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Salobo mine utilizes standard open pit methods, developed in 15 m benches, with trucks and shovels. After drilling and blasting the material, cable shovels, large front-end loaders and hydraulic excavators are used to load this material. A fleet of 240 t and 360 t trucks are used to haul the waste material to waste dumps proximal to the pit or ore material to the primary crusher. Lower grade ore is stockpiled for later processing.

The mine planning objective is to mine the ore sequentially in mining phases, considering the largest possible vertical spacing between phases. The plan is to provide an approximately steady annual production of 36.0 million tonnes to the mill. Initial production from the expansion is expected in January 2022.

The Salobo bulk mining operations primarily utilize large electric (rope) shovels for ore and waste production. Hydraulic shovels are used for the oxide saprolite and transition material where a lower ground pressure is required. Wheel loaders are used for miscellaneous clean up jobs and for backup of the shovels when needed.


Crushing and Grinding
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Processing

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Summary:

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Production:

CommodityUnits2021202020192018201720162015
Copper kt  ......  Subscription required  ......  Subscription required  ......  Subscription required193193176155
Gold koz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
All production numbers are expressed as metal in concentrate.
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Operational Metrics:

Metrics202120202019201820172016
Ore tonnes mined  ......  Subscription required  ......  Subscription required48,468 kt50,963 kt61,573 kt57,279 kt
Annual processing capacity  ......  Subscription required  ......  Subscription required24 Mt24 Mt24 Mt
Annual production capacity  ......  Subscription required  ......  Subscription required197,000 t of copper metal in concentrate197,000 t of copper metal in concentrate197,000 t of copper metal in concentrate
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Reserves at December 31, 2021:
Cut-off grade for Mineral Reserves and Mineral Resources is 0.25% CuEq.

Estimated consolidated copper ore reserves include 206.1 million dry metric tons of stockpile.

CategoryTonnage CommodityGrade
Proven 231 M dmt Copper 0.69 %
Proven 231 M dmt Gold 0.4 g/t
Probable 902.4 M dmt Copper 0.6 %
Probable 902.4 M dmt Gold 0.34 g/t
Proven & Probable 1,133 M dmt Copper 0.62 %
Proven & Probable 1,133 M dmt Gold 0.35 g/t
Measured 30.2 M dmt Copper 0.39 %
Measured 30.2 M dmt Gold 0.17 g/t
Indicated 439.4 M dmt Copper 0.49 %
Indicated 439.4 M dmt Gold 0.25 g/t
Measured & Indicated 469.7 M dmt Copper 0.48 %
Measured & Indicated 469.7 M dmt Gold 0.24 g/t
Inferred 268.9 M dmt Copper 0.5 %
Inferred 268.9 M dmt Gold 0.3 g/t

Commodity Production Costs:

CommodityUnits202120202019201820172016
Cash costs Copper USD 3,112 / t   3,275 / t   3,182 / t  
Cash costs (sold) Copper USD  ......  Subscription required†  ......  Subscription required†  ......  Subscription required† 747 / t†   1,009 / t†  
† Net of By-Product.
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Financials:

Units2022202120202019201820172016
Capital expenditures (planned) M USD  ......  Subscription required
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Growth Capital M USD 2.9   0.1  
Sustaining costs M USD 123.1   77   150.3  
EBITDA M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 882   924  
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Pipelines
TypeMaterialDiameterLengthDescription


Heavy Mobile Equipment as of December 31, 2019:
HME TypeModelSizeQuantity
Bulldozer ....................... Subscription required
Bulldozer ....................... Subscription required
Bulldozer ....................... Subscription required
Bulldozer ....................... Subscription required
Bulldozer ....................... Subscription required
Drill ....................... Subscription required ....................... Subscription required
Drill ....................... Subscription required 5.5 inch ....................... Subscription required
Drill ....................... Subscription required 12.25 inch ....................... Subscription required
Drill ....................... Subscription required 12.25 inch ....................... Subscription required
Drill ....................... Subscription required 6.5 inch ....................... Subscription required
Excavator ....................... Subscription required 38 cu. yd ....................... Subscription required
Loader ....................... Subscription required 33 cu. yd ....................... Subscription required
Shovel ....................... Subscription required 63 cu. yd ....................... Subscription required
Shovel (rope) ....................... Subscription required 42 cu. yd ....................... Subscription required
Truck (haul) ....................... Subscription required 240 t ....................... Subscription required
Truck (haul) ....................... Subscription required 360 t ....................... Subscription required
Truck (haul) ....................... Subscription required 320 t ....................... Subscription required
Truck (haul) ....................... Subscription required 240 t ....................... Subscription required
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Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jun 1, 2022
....................... Subscription required ....................... Subscription required Subscription required Jun 1, 2022
....................... Subscription required ....................... Subscription required Subscription required Jun 1, 2022
....................... Subscription required ....................... Subscription required Subscription required Jun 1, 2022
....................... Subscription required ....................... Subscription required Subscription required Jun 1, 2022
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Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Financial Review 2018
Form 20-F 2018
Form 20-F 2017
Form 20-F 2016
Form 20-F 2015
Press Release 2015
Technical Report 2015
Form 20-F 2014
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