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Philippines
Rio Tuba Mine

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 Location:
76 km SW from Pulot, Philippines

  Address:
2Nd Floor, Solid Mills Bldg Cnr De La Rosa/Adelantado
Manila
Philippines
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WebsiteWeb
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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Nickel
  • Iron
Mining Method
  • Truck & Shovel / Loader


Owners & OPERATOR

 
CompanyInterestOwnership
Sojitz Corp. 4 % Indirect
PAMCO, Inc. 36 % Indirect
Nickel Asia Corp. 60 % Indirect
Rio Tuba Nickel Mining Corp. (operator) 100 % Direct

Deposit Type

  • Sedimentary


Summary:

The targeted deposit type for all projects is tropical (wet) lateritic nickel and cobalt. Particular emphasis is placed on the definition of reasonable thicknesses (i.e. >4m) of (garnieritic) saprolite.

This style of mineralisation is best developed in areas of moderate topographic gradient over olivine-rich ultramafic cumulates; particularly in areas of relatively higher bedrock fracture density.

Vertical zonation within nickeliferous laterite is distinct, with nickel content generally increasing with depth. Garnierite, the principal saprolite nickel host mineral, is a variety of serpentine, a silicate mineral developed below base of total oxidation in the weathering profile. Overprinted on the saprolite is an iron oxide zone of massive, microscopic scale goethite (limonite) needles termed “ferralite”. This zone is characterized by higher iron and manganese and lower magnesium content than the saprolite (garnierite) horizon. The presence of higher proportions of manganese oxides (“asbolite”) can frequently result in bonanza grades of cobalt (up to 3% locally), which readily incorporates into the asbolite crystal structure. Nickel content is generally lower than in the saprolite.


Mining Methods

  • Truck & Shovel / Loader


Summary:


Crushing and Grinding


Processing



Production:

CommodityUnits201920182017201620152014
Saprolite wmt  ......  Subscription required  ......  Subscription required1,529,5261,921,3512,367,5482,190,463
Limonite wmt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
All production numbers are expressed as ore.
Subscription required - Subscription is required.

Operational Metrics:

Metrics201920182017201620152014
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required3,244,322 wmt3,461,974 wmt3,361,166 wmt
Subscription required - Subscription is required.

Reserves at December 1, 2019:

CategoryTonnage CommodityGradeContained Metal
Proven & Probable 30,816 kwmt Nickel 1.44 % 285.76 kt
Proven & Probable 59,950 kwmt Nickel 1.17 % 490 kt
Proven & Probable 30,816 kwmt Iron 13.56 %
Proven & Probable 59,950 kwmt Iron 33.83 %
Measured & Indicated 35,601 kwmt Nickel 1.51 % 350 kt
Measured & Indicated 61,650 kwmt Nickel 1.19 % 512 kt
Measured & Indicated 35,601 kwmt Iron 14.35 %
Measured & Indicated 61,650 kwmt Iron 33.69 %
Inferred 7,433 kwmt Nickel 1.48 % 72 kt
Inferred 8,872 kwmt Nickel 1.09 % 68 kt
Inferred 7,433 kwmt Iron 13.49 %
Inferred 8,872 kwmt Iron 28.97 %


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Feb 9, 2021
....................... Subscription required ....................... Subscription required Subscription required Feb 9, 2021
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
................................... Subscription required 2018
Annual Report 2016
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Aerial view:

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