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Brazil
Boa Vista Mine

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 Location:
13 km NE from Catalao, Brazil

  Address:
Rodovia BR 050, Km 263, s/nº Fazenda Morro Agudo – Zona Rural
Catalão
Brazil
75701-970
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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
  • Niobium
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life19.8 years (as of Jan 1, 2021)
The Company is responsible for the extraction of niobium from the mine located in Catalão (GO) and is the second largest niobium producer in the world.


Owners

Source: p. 73,110
CompanyInterestOwnership
CMOC Group Ltd. 100 % Indirect

Contractors

Subscription required - Subscription is required.


Deposit Type

  • Breccia pipe / Stockwork


Summary:

Two significant niobium deposits have been defined to date and are named Boa Vista and Morro de Padre deposits. These deposits are hosts by igneous rocks which occur as swarms of thin dikes, forming a stockwork of crosscutting dikes in the upper zone and varying to individual mineralised thicker dikes at depth.

Niobium mineralisation is associated with nelsonite vein which vary in thickness and orientation forming stock work style deposits. Containing magnetite-apatite-carbonate composition economic mineralisation is exclusively associated with the mineral pyrochlore. The nelsonite veins are hosted within a variety of pre-existing lithologies including amphibolite and fenite, a metasomatically altered rock believed to originally comprise phyllite. Phlogopite alteration may also be associated with the carbonatite veins, where it commonly occurs as haloes surrounding the veins and overprinting the fenite. To a lesser extent phlogopite occurs as selvages to the nelsonite veins.

Both the Boa Vista and Morro de Padre deposits occur as pipe-like bodies consisting of sub vertical major feeder structures that permit vertical passage of the deep-seated carbonatite magmas to shallower depths where the dykes split into a complex stockwork of veins and veinlets. The stockwork zones are approximately 270m (N-S) by 350m (E-W) and are considered to be a result of magma degassing in response to reducing confining pressures and the formation of multiple sets of tensional ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The niobium ore from the Boa Vista mine is mined using conventional open-pit mining methods in multiple benches in a confined mine. Operations commence with waste stripping, or the removal of the organic waste soil layer, which covers the economically viable ore to be explored. It is carried out by backhoe loaders, which remove the material and load the waste onto the trucks, which transport and unload the material in the waste dump.

The Boa Vista pit has been mined since 2000 with fresh material reached in 2014. Overall slopes in the oxidized ore are 25 to 30o and bench face angle (BFA) of 65 degrees with 5-m high benches. Fresh rock have overall slopes of 50 to 53o, BFA of 85o and 10-m high benches.


Crushing and Grinding
Source: Subscription required


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Production:

CommodityUnits2022202120202019201820172016
Niobium t  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required8,9578,6746,259
All production numbers are expressed as metal in alloy. ^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202120202019201820172016
Tonnes processed  ......  Subscription required  ......  Subscription required2.09 Mt2.27 Mt
Ore tonnes mined  ......  Subscription required  ......  Subscription required3,190 kt
Annual mining capacity  ......  Subscription required  ......  Subscription required14 Mt
Annual processing capacity  ......  Subscription required  ......  Subscription required3.1 Mt
Subscription required - Subscription is required.

Reserves at December 31, 2021:

CategoryTonnage CommodityGradeContained Metal
Proven & Probable 42.92 Mt Niobium 0.96 % 412 kt
Total Resource 137.41 Mt Niobium 1.05 % 1,443 kt

Financials:

Units2017
Capital expenditures M USD
Revenue M RMB 1,670  
Operating Income M RMB 151.3  
Pre-tax Income M RMB 151.3  
After-tax Income M RMB 149.2  
EBIT M USD
EBITDA M USD



Heavy Mobile Equipment as of September 8, 2016:
HME TypeModelSizeQuantityLeased or
Contractor
Excavator ....................... Subscription required ....................... Subscription required Leased
Excavator ....................... Subscription required ....................... Subscription required Leased
Truck (haul) 35 t ....................... Subscription required Leased
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 12, 2022
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Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2015

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Annual Report 2017
Corporate Presentation 2017
Annual Report 2016
Project Description 2016
Annual Report 2015
Subscription required - Subscription is required.

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