Brazil

Mineracao Corumbaense Reunida(MCR) Operation

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Categories

Overview

Mine TypeOpen Pit & Underground
Commodities
  • Iron Ore
  • Manganese
Mining Method
  • Truck & Shovel / Loader
  • Room-and-pillar
Production Start... Lock
Mine Life2060
ShapshotMineração Corumbaense Reunida (MCR) operations include two mines in Corumbá, in Mato Grosso do Sul: Santa Cruz, for iron ore, and Urucum, the only underground manganese mine in operation in the region.

In April 2022, Vale entered into a binding agreement with J&F Mineração Ltda. (“J&F”) for the sale of of all the shares issued by Mineração Corumbaense Reunida S.A., Mineração Mato Grosso S.A., International Iron Company, Inc. and Transbarge Navegación Sociedad Anónima, which hold Vale's iron ore, manganese ore and logistics assets in the Midwestern System. The agreed enterprise value of the transaction is approximately US$1.2 billion for the assets. At closing, we expect to receive approximately US$150 million, in addition to transferring to J&F the obligations related to the take-or-pay logistics contracts, subject to the consent of the applicable counterparties, and other liabilities existing in the transferred assets.
Related AssetsCorumba Mine, Urucum Mine

Owners

SourceSource
CompanyInterestOwnership
Mineracao Corumbaense Reunida S.A. (operator) 100 % Direct
J&F Mineração Ltda. 100 % Indirect
On April 6, 2022, Vale S.A. signed a binding agreement for the sale, to J&F Mineração Ltda., controlled by J&F Investimentos S.A., of all the shares issued by Mineração Corumbaense Reunida S.A., Mineração Mato Grosso S.A., International Iron Company, Inc. and Transbarge Navegación Sociedad Anónima, which hold Iron Ore, Manganese Ore and Logistics assets.

Deposit type

  • Banded iron formation

Summary:

Hematite ore type, which generates lump ore predominantly. Iron grade of 62% on average. High-grade manganese ore (an average content of 46% manganese grade).

The manganese and iron deposits of the Morro do Uruclun are located about 25 kilometers south of the city of Corumba, Mato Grosso, Brazil.

The deposits of both manganese and iron occur in the Jacadigo series, of unknown but probably late pre-Cambrian or early Paleozoic age. This has been subdivided into the Urucum, the Corrego das Pedras, and the Band' Alta formations. The Urucum formation, between 400 and 500-meters thick, consists of continental deposits of arkose and conglomerate. It grades upward into the Corrego das Pedras formation, about 95 meters thick, in which ferruginous arkose at the base grades upward into ferruginous sandstone and ferruginous jasper. Above the Corrego daa Pedras formation is the Band' Alta formation, at least 300 meters in thickness, which contains the deposits of manganese and iron. At the base of the Band' Alta is a widespread bed of the manganese oxide cryptomelane. This is overlain by banded siliceous hematite, which makes up the greater part of the formation but is interbedded, about 40 meters or more above the base, with other lenticular beds or cryptomelnns, and, higher in the section, with lenticular beds of clastic rocks, including siltstone, sandstone, and, rarely, conglomerate. The formation is cut off at the top by an erosion surface.

The Corumba formation consists of calcareous shales and argillites, sandy shales, black, well-bedded limestone, gray limestone and dolomite, andwhlte dolomite. It extends at least 200 kilometers westward from Corumba into Bolivia, 100 kilometers to the south, more than 100 kilometers to the north, and an unknown distance to the east.

In many localities the Corumba formation has been marmorized. Although this recrystallization has been attributed to metamorphic effects of the intrusive granite which crops out near Fazenda do Urucum, it is more probably the result of dynamic stresses induced during the complex deformation of the area. There is no known evidence to prove or even strongly indicate that the granite is intrusive into the Corumba formation.

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

Production data for 2022 cannot be published due to a change in ownership of the Operation.
CommodityUnits2021202020192018201720162015
Iron Ore Mt 0000002.52.42.34.5
Manganese Mt 0000000.70.70.70.7
All production numbers are expressed as lump & fines.

Production Costs

Commodity production costs have not been reported.

Heavy Mobile Equipment

Fleet data has not been reported.

Personnel

Mine Management

Source Source
Job TitleNameProfileRef. Date
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