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Australia
Cadoux Project

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 Location:
10 Km NE from Cadoux, Western Australia, Australia

  Project Contacts:
Unit 8-9, 88 Forrest Street
Cottesloe
Western Australia, Australia
6011
Phone  ...  Subscription required
Fax+61-8-9463-1426
EmailEmail
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StagePermitting
Mine TypeOpen Pit
Commodities
  • Aluminum
  • Alumina
Mining Method
  • Truck & Shovel / Loader
Mine Life25 years (as of Jan 1, 2020)
The Company’s integrated HPA production consists of two operating sites: one being the mining and beneficiation of feedstock at Cadoux and second the refining of feedstock for HPA production at Kwinana.


Owners

Source: p. 29
CompanyInterestOwnership
FYI Resources Limited 100 % Indirect
Kokardine Kaolin Pty Ltd. (KKPL) (operator) 100 % Direct
FYI Resources Ltd, listed on the ASX, is the head company which holds 100% of the shares in the subsidiary Kokardine Kaolin Pty Ltd (KKPL). All HPA project development activities are accounted through KKPL thus all assets such as tenements, fixed assets and intellectual property are held in KKPL. Commercial contracts with regard to the development, construction and operation of the project are executed by KKPL.

Contractors

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Deposit Type

  • Metamorphic hosted


Summary:

The project area is underlain by weathered granitoid Archaean rock of the Yilgarn Granites is the likely parent material for the kaolin. Here, deep weathering of the feldspathic and ferromagnesian minerals within the metamorphosed granitic has resulted in the formation of kaolinite. There is no outcrop but recognizable granitoid fragmental rocks are sometimes present just below surface. The crust of the overburden comprises gravel and sands over reddish to off-white clay. White kaolin underlies the overburden followed by weathered, partial oxidized and then fresh granitoids at depth.

The recent drilling at the property has revealed a weathering profile which is very common in Western Australia with the granitoid rocks, deeply weathered forming a leached, kaolinized zone under a lateritic crust. Analysis at the Laboratory shows particle size distributions are typical of “primary style” kaolin clays produced from weathered granites. The crust of overburden comprises gravel and sands over reddish to off-white clay to an average depth of 5 m. White kaolin then averages approximately 16 m before orange to yellow sandy and mottled clays are intersected which are followed by recognisable rounded granitoid material. The thickness of the kaolin profile varies from less than 1 m to a maximum of 22 m. Fresh granitoids are found at depths of between 10 m and 30 m. All kaolin resources are within 4 m to 11 m of the surface.

The upper low K2O zone (K2OCD= 1) is genera ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Conventional open pit mining is adopted due to the shallow depth of the orebody and is suitable for free digging and hard ripping (i.e. no drilling and blasting). Backfilling will minimise the disturbance footprint of the small operation and the environmental impact. The adopted mining method has the following steps:

• overburden is excavated with trucks and an excavator until the top of the orebody is exposed, with some areas potentially requiring hard ripping;
• the exposed ore is mined with trucks and an excavator then hauled either directly to mill or a Run of Mine (ROM) stockpile for future processing;
• overburden and rejects are placed back into the previously excavated sections of the pit as soon as they become available for backfilling. (i.e. have enough stand off from the mining face and are completely exposed at the bottom).

The primary Cadoux site layout mine design was based on the optimal production pit-shell. The mine scheduling design and the size of the anticipated mining fleet with considerations for:

• minimum mining width;
• bench height;
• berm and batter configuration;
• haul road width;
• backfilling;
• sizing of mining fleet; and
• operational flexibility.

Where sensible, the bench height is 5m. Near the bottom of the pit, the bench height was reduced to 1 m to be able to selectively mine the ore along the ore/waste boundary. The 5 m wide berms were designed every 2 ben ........


Crushing and Grinding


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityUnitsAvg. Annual
Alumina t 10,000
All production numbers are expressed as powder.

Operational Metrics:

Metrics
Annual processing rate  ......  Subscription required
Annual ore mining rate  ......  Subscription required
* According to 2021 study.
Subscription required - Subscription is required.

Reserves at March 11, 2020:
Ore Reserve Estimate above 7.06% Al2O3 cut-off grade.

CategoryTonnage CommodityGrade
Proven 290 kdmt Al2O3 24.9 %
Proven 290 kdmt Fe2O3 1.1 %
Proven 290 kdmt K2O 0.5 %
Proven 290 kdmt Titanium dioxide 0.8 %
Probable 2,914 kdmt Al2O3 24.8 %
Probable 2,914 kdmt Fe2O3 1.1 %
Probable 2,914 kdmt K2O 0.6 %
Probable 2,914 kdmt Titanium dioxide 0.9 %
Proven & Probable 3,205 kdmt Al2O3 24.8 %
Proven & Probable 3,205 kdmt Fe2O3 1.1 %
Proven & Probable 3,205 kdmt K2O 0.5 %
Proven & Probable 3,205 kdmt Titanium dioxide 0.9 %
Measured 480.5 kdmt Al2O3 23.56 %
Measured 480.5 kdmt Fe2O3 1.24 %
Measured 480.5 kdmt K2O 1.18 %
Indicated 5,743 kdmt Al2O3 23.36 %
Indicated 5,743 kdmt Fe2O3 1.19 %
Indicated 5,743 kdmt K2O 1.09 %
Inferred 5,046 kdmt Al2O3 21.45 %
Inferred 5,046 kdmt Fe2O3 0.59 %
Inferred 5,046 kdmt K2O 0.91 %
Total Resource 11,269 kdmt Al2O3 22.51 %
Total Resource 11,269 kdmt Fe2O3 0.92 %
Total Resource 11,269 kdmt K2O 1.02 %

Commodity Production Costs:

CommodityUnitsAverage
C1 cash costs Alumina USD  ......  Subscription required&nbs
Assumed price Alumina USD  ......  Subscription required&nbs
* According to 2021 study / presentation.
Subscription required - Subscription is required.

2021 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Working capital $M USD  ......  Subscription required
Closure costs $M USD  ......  Subscription required
Total CapEx $M USD  ......  Subscription required
Gross revenue (LOM) $M USD  ......  Subscription required
After-tax Cash Flow (LOM) $M USD  ......  Subscription required
After-tax NPV @ 8% $M USD  ......  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 April 8, 2021:
HME TypeSizeLeased or
Contractor
Excavator 75 t Leased
....................... Subscription required ....................... Subscription required Leased
Subscription required - Subscription is required.

Mine Management:

Job TitleNamePhoneProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Apr 8, 2021
....................... Subscription required ....................... Subscription required ....................... Subscription required Apr 8, 2021
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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