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Brazil
Serra Sul Complex (Northern System)

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 Location:
43 km NW from Canaã dos Carajás, Brazil

  Address:
Praia de Botafogo 186 – offices 701-1901
Rio de Janeiro
Brazil
22250-145
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WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Iron Ore
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life2059
Serra Sul mining complex is a part of our Northern System. Its integrated operation includes S11D and S11C deposits, and one beneficiation plant.


Owners

Source: p. 40
CompanyInterestOwnership
Vale S.A. (operator) 100 % Indirect
Serra Sul mine Complex is owned and operated by Vale S.A..

Contractors

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Deposit Type

  • Banded iron formation


Summary:

The main Carajás iron ore deposits are associated with flat-topped elevated plateaus, in general, elevated areas, between 650-800 meters, defined along two main morphological alignments corresponding to Serra Norte and Serra Sul. These alignments materialize the limbs of the Carajás Syncline. The Serra Sul Complex corresponds to the normal limb domain of the Carajás Syncline, characterized by a lower degree of deformation when compared to the inverse limb, which is reflected in the greater continuity of the iron formations. Mineralization The mineralization at Serra Sul is mainly formed from alteration on jaspillites, which constitutes the Carajás ore protolith. The high-grade ore consists of friable hematite, compact hematite, and manganese hematite, which occur in a sub-horizontal tabular layer, which tends to follow the topographical surface, commonly covered by a canga carapace, also considered a mineralized lithotype. Friable hematite (HF) accounts for about 85% of the mineralization. It is essentially composed of hematite, with irregular masses of magnetite, goethite, and limonite inherited from the jaspillitic ore protolith, in addition to kaolin and clay minerals, which occur more locally, from the alteration of volcanic rocks. HF occurs from near the surface to depths greater than 450 m and presents average Fe grades around 68.8%, with relatively low levels of phosphorus, silica, alumina, and loss on ignition. Loss on ignition and phosphorus are generally associa ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The Serra Sul Mining Complex is located in the north of Brazil. The property consists of orebody S11, subdivided on A, B, C, and D. Current production activities are in the S11D mine and the mineral reserves and mineral resources are defined only for the orebodies C and D.

Serra Sul has mined by open pit with berms and benches and uses large truck, shovel equipment and also In Pit Crusher Conveyor (IPCC) mining method.

The mine design includes benches 15 m high, berms 15 m wide, bench face angles from 50 to 85 degrees, according to the lithology in the mine. Ramp access is 40m width with 10% gradient.

The mining method at Serra Sul is open pit. Materials that require drilling and blasting and whose geometry does not favor to IPCC, are mined by normal truck and shovel, otherwise IPCC mining method is applied.

The movement of material is done by electric cable and/or hydraulic excavators into mobile crushers. The mobile crushing plants are equipped with a “sizer” (friable materials) or jaws crushers (compact material). Once the particle is reduced to the appropriate size for the conveyor belt, both the ore and the waste are sent to a transfer house where the conveyors are provided with a mobile head and adjust to transfer the ore onto a belt that takes it to a stockpile and the waste to another belt that sends to spreaders, which build the waste dumps.

Production is carried out by the company´s mine personnel, while contra ........


Crushing and Grinding
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Processing

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Summary:

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Production:

CommodityUnits2022202120202019201820172016
Iron Ore Mt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required58220.4
All production numbers are expressed as fines.
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Operational Metrics:

Metrics202220212020201920182017
Annual processing capacity  ......  Subscription required  ......  Subscription required
Annual ore mining rate  ......  Subscription required  ......  Subscription required
Stripping / waste ratio  ......  Subscription required  ......  Subscription required0.02 0.01 0.01
Ore tonnes mined  ......  Subscription required  ......  Subscription required82,846,725 t73,368,966 t58,025,579 t22,183,561 t
Waste  ......  Subscription required  ......  Subscription required1,632,140 t905,528 t362,718 t11,055 t
Total tonnes mined  ......  Subscription required  ......  Subscription required84,478,866 t74,274,494 t58,388,297 t22,194,616 t
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Reserves at December 31, 2022:

CategoryTonnage CommodityGrade
Proven 1,808 Mt Iron 66.1 %
Probable 2,386 Mt Iron 65.6 %
Proven & Probable 4,193 Mt Iron 65.8 %
Measured 479.9 Mt Iron 66 %
Indicated 388 Mt Iron 64.6 %
Measured & Indicated 867.8 Mt Iron 65.4 %
Inferred 123.5 Mt Iron 64.3 %

Financials:

Units20222021
Growth Capital M USD  ......  Subscription required
Book Value M USD  ......  Subscription required  ......  Subscription required
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Water Supply
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Heavy Mobile Equipment:
HME TypeModelQuantityRef. Date
Drill ....................... Subscription required Apr 8, 2022
Excavator ....................... Subscription required Apr 8, 2022
Shovel (rope) ....................... Subscription required ....................... Subscription required Dec 6, 2018
Truck (haul) ....................... Subscription required Apr 8, 2022
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Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required May 17, 2023
....................... Subscription required ....................... Subscription required Subscription required May 17, 2023
....................... Subscription required ....................... Subscription required Subscription required May 17, 2023
....................... Subscription required ....................... Subscription required Subscription required May 17, 2023
....................... Subscription required ....................... Subscription required Subscription required May 17, 2023
....................... Subscription required ....................... Subscription required Subscription required May 17, 2023
....................... Subscription required ....................... Subscription required Subscription required May 17, 2023
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2021

Corporate Filings & Presentations:

DocumentYear
Form 20-F 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2019
Form 20-F 2018
Form 20-F 2017
Form 20-F 2016
Form 20-F 2015
Form 20-F 2011
Technical Report 2010
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