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Argentina
Amarillo Grande Project

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 Location:
25 km N from Valcheta, Argentina

  Project Contacts:
Sobremonte 579
Mendoza
Argentina
5500
Phone  ...  Subscription required
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  • Overview
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  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
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  • Filings & News

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Overview

StagePreliminary Economic Assessment
Mine TypeOpen Pit
Commodities
  • Uranium
  • Vanadium
Mining Method
  • Truck & Shovel / Loader
Mine Life13 years (as of Jan 1, 2019)
Potential to rank amongst the largest uranium districts in the world with lowest quartile operating cost.


Owners

Source: p. 27
CompanyInterestOwnership
Minera Cielo Azul Ltda (operator) 100 % Direct
Blue Sky Uranium Corp. 100 % Indirect
The Amarillo Grande Project currently includes approximately 100 registered properties with a total area of over 280,000 hectares and is 100% controlled by Blue Sky Uranium through its local wholly owned subsidiary Minera Cielo Azul S.A.

Contractors

Subscription required - Subscription is required.


Deposit Type

  • Sandstone hosted


Summary:

Property Geology
The strata present at the Ivana prospect are continental epiclastic and pyroclastic rocks of the Oligoceneearly Miocene Chichinales Formation that were deposited unconformably over the rocks of the North Patagonian Massif, or over a marine sequence of Arroyo Barbudo Formation and red beds section of Neuquén Group.

The Chichinales Formation has been divided into three members. The lower member, host to the Ivana uranium-vanadium mineralization, is commonly cross-bedded medium to coarse sandstone with silicified logs and fossil-wood debris. The lower Chichinales, at the Ivana prospect, contains layers of coarse, poorly sorted conglomerate, pebbly tuffaceous sandstone and small discontinuous layers and interbeds of mudstone and sandstone with carbonate cement.

The Middle Members contains characteristic paleosols in sequences of siltstone, mudstone and minor layers of fine sandstone. Finally, the Upper member comprises uniform thick sequences of coarse to fine tuffaceous sandstone and siltstone with interstratified mudstone at the bottom and mostly siltstone to fine sandstone at the top (Bjerg, 1997). Regionally some alteration patterns have been defined by diagenetic red beds style oxidation and gray reduction-bleaching in Chichinales sandstone.

Outside the Ivana prospect, the upper part of the Chichinales interfingers with marginal marine sediments of the Bajo del Gualicho formation. Unconsolidated Quaternary deposits consi ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The Ivana operation will consist of surface mining operation delivering mill feed to a nearby processing plant or stockpiles. The annual mining rate will be approximately 4.7 Mtpa (13,000 tpd) consisting of waste material and mill feed. The average strip ratio is approximately 1.1:1. Table 3 presents the potentially excavated tonnages. Mill feed may be delivered directly to the process plant or placed into stockpiles for blending purposes.

Mine Layout
The mine is approximately 3,000 metres long and generally ranges in width from 100m to 400m. The mine wall angles are designed at 30 degrees. The final mine floor will be undulating, however the average mined depth is about 20 metres.

In order to optimally schedule the mining tonnages and to accelerate access to higher grade material, the mine was sub-divided into multiple phases. The higher grades are encountered near the centre of the deposit while lower grades are found along the northwest sides. The initial starter excavation will be located in the central part of the deposit.

Loading and Hauling
Diesel powered hydraulic backhoe excavators with 5 m3 buckets will be used to dig the waste and feed materials. The excavators will load the 31-tonne articulated haul trucks with 4 pass loading. Articulated trucks are assumed due to potential trafficability issues when mining below the groundwater table.

Loading operations will also be supported by a wheel loader with a 5 m3 buck ........


Crushing and Grinding


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityProductUnitsAvg. AnnualLOM
Uranium (U3O8) U3O8 M lbs 1.418
Vanadium Oxide M lbs  ......  Subscription required  ......  Subscription required

Operational Metrics:

Metrics
Stripping / waste ratio 1.05 *
Daily mining rate 13,000 t *
Waste tonnes, LOM 30,100 kt *
Ore tonnes mined, LOM 28,615 kt *
Total tonnes mined, LOM 58,715 kt *
Daily processing rate 6,300 t *
Tonnes processed, LOM 27.7 Mt *
Annual processing rate 2.17 Mt *
Annual mining rate 4.7 Mt *
* According to 2019 study.

Reserves at February 27, 2019:
Inferred Mineral Resource reported at 100 ppm Uranium Cut-off.

CategoryTonnage CommodityGradeContained 
Commodity
Inferred 28,000,000 t Uranium (U3O8) 311 ppm
Inferred 28,000,000 t Vanadium 107 ppm
Inferred 28,000,000 t U3O8 0.037 % 22,700,000 lbs
Inferred 28,000,000 t V2O5 0.019 % 11,500,000 lbs

Commodity Production Costs:

CommodityUnitsAverage
Cash costs U3O8 USD  ......  Subscription required&nbs
Total cash costs U3O8 USD  ......  Subscription required&nbs
Total cash costs U3O8 USD  ......  Subscription required *†
All-in sustaining costs (AISC) U3O8 USD  ......  Subscription required *†
Assumed price U3O8 USD  ......  Subscription required&nbs
Assumed price V2O5 USD  ......  Subscription required&nbs
* According to 2019 study / presentation.
† Net of By-Product.

Operating Costs:

Units2019
OP mining costs ($/t mined) USD 2.26 *
OP mining costs ($/t milled) USD  ......  Subscription required
Processing costs ($/t milled) USD  ......  Subscription required
G&A ($/t milled) USD  ......  Subscription required
Total operating costs ($/t milled) USD  ......  Subscription required
* According to 2019 study.
Subscription required - Subscription is required.

2019 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Pre-Production capital costs $M USD  ......  Subscription required
Sustaining CapEx $M USD  ......  Subscription required
Closure costs $M USD  ......  Subscription required
Total CapEx $M USD  ......  Subscription required
OP OpEx $M USD  ......  Subscription required
Processing OpEx $M USD 180
G&A costs $M USD 49.9
Total OpEx $M USD  ......  Subscription required
Income Taxes $M USD  ......  Subscription required
Royalty payments $M USD  ......  Subscription required
Gross revenue (LOM) $M USD  ......  Subscription required
After-tax Cash Flow (LOM) $M USD  ......  Subscription required
Pre-tax NPV @ 0% $M USD  ......  Subscription required
Pre-tax NPV @ 5% $M USD  ......  Subscription required
Pre-tax NPV @ 10% $M USD  ......  Subscription required
Pre-tax NPV @ 8% $M USD  ......  Subscription required
After-tax NPV @ 0% $M USD  ......  Subscription required
After-tax NPV @ 5% $M USD  ......  Subscription required
After-tax NPV @ 10% $M USD  ......  Subscription required
After-tax NPV @ 8% $M USD  ......  Subscription required
Pre-tax IRR, %  ......  Subscription required
After-tax IRR, %  ......  Subscription required
After-tax payback period, years  ......  Subscription required
Subscription required - Subscription is required.


Proposed Heavy Mobile Equipment as of February 27, 2019:
HME TypeModelSizeQuantity
Crane 40 t ....................... Subscription required
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Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Feb 27, 2019
....................... Subscription required ....................... Subscription required Subscription required Feb 27, 2019
....................... Subscription required ....................... Subscription required Subscription required Feb 27, 2019
....................... Subscription required ....................... Subscription required Subscription required Nov 10, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2019

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2019
................................... Subscription required 2019
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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