Brazil

Mineração Rio do Norte (MRN) Mine

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Categories

Overview

Mine TypeOpen Pit
StatusActive
Commodities
  • Bauxite
Mining Method
  • Truck & Shovel / Loader
Production Start... Lock
Mine Life... Lock
SnapshotMineração Rio do Norte is the largest Brazilian producer and exporter of bauxite.

Mineração Rio do Norte is an integrated system comprised of 4 different plateaus, 2 crushers facilities, 32 km of conveyor belt system, washing and dryer plants, railroad system and a port.

Owners

SourceSource
CompanyInterestOwnershipInvestor's Info
Companhia Brasileira de Alumínio (CBA) 10 % Indirect
Rio Tinto plc 12 % Indirect
South32 Limited 33 % Indirect
Glencore plc. 45 % Indirect
Mineração Rio do Norte S.A. (MRN) (operator) 100 % Direct
Mineração Rio do Norte S.A. (MRN) is a joint venture between affiliates of Rio Tinto (12%), Companhia Brasileira de Alumínio (10%), South32 (33%), and Glencore (45%) for the operation of a bauxite mine in Porto Trombetas in the state of Pará in Brazil.

On December 1, 2023, Glencore closed the transaction to purchase a 45% equity stake in Mineracão Rio do Norte S.A. (“MRN”).

Deposit type

  • Sedimentary
  • Bauxite

Summary:

The bauxites of Trombetas operate the mines of Saracá V, Saracá W and Bela Cruz, where the ore lies at an average depth of 8 meters and is covered with dense vegetation and a layer of overburden made up by organic soil, clay, nodular bauxite and ferruginous laterite.

The bauxites of Trombetas are associated with the plateaus, high areas with relatively plan ridges and elevations between 200 and 160 meters, which were formed from lateritization processes acting on sedimentary rocks (which contained aluminous minerals) from the Paleogene period (about 40 million years).

The mineralization of bauxite occurs at the top of the plateau and is normally covered by a layer of clay, 4 to 10 meters thick. However, near the edges of the plateaus, bauxite might even be outcropping in the soil.

Bauxite is a rock made up of different minerals (gibbsite, kaolinite and quartz), the first being the source of aluminum.

A typical bauxitic profile consists of the following horizons:

- 4 - organic soil with a maximum thickness of 0.5m;
- 3 - yellow clay covering most bauxitic profiles, consisting of kaolinite (80%) and quartz, with a maximum thickness at the center of the plateau, decreasing to its edges;
- 2 - bauxitic layer with an average thickness of 4 m, subdivided into three subhorizons:
- 2c – nodular bauxite;
- 2b – ferruginous laterite;
- 2a – massive to granular bauxite;
- 1 - variegated clay.

Reserves

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Mining Methods

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Comminution

Crushers and Mills

Milling equipment has not been reported.

Processing

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Production

CommodityUnits20222021202020192018201720162015
Bauxite kt  ....  Subscribe  ....  Subscribe  ....  Subscribe11,06013,13414,69816,46216,162
All production numbers are expressed as fines.

Operational metrics

Metrics202120202019201820162015
Annual production capacity  ....  Subscribe  ....  Subscribe18 Mt of bauxite fines18 Mt of bauxite fines18 Mt of bauxite fines18 Mt of bauxite fines

Production Costs

Commodity production costs have not been reported.

Financials

Units202220212020201920182017
Revenue M BRL  ....  Subscribe  ....  Subscribe  ....  Subscribe 1,609   1,723   1,310  
Gross profit M BRL  ....  Subscribe  ....  Subscribe
Pre-tax Income M BRL  ....  Subscribe  ....  Subscribe  ....  Subscribe 183.3   23.6   124.9  
After-tax Income M BRL  ....  Subscribe  ....  Subscribe  ....  Subscribe 143.9   15.9   106.3  
EBITDA M BRL  ....  Subscribe  ....  Subscribe  ....  Subscribe 587.6   464.3   328.1  
Operating Cash Flow M BRL  ....  Subscribe  ....  Subscribe

Heavy Mobile Equipment

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Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required May 20, 2023
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EmployeesContractorsTotal WorkforceYear
...... Subscription required ...... Subscription required ...... Subscription required 2022
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Aerial view:

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