Mining Intelligence and News

Cadoux Project

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Mine TypeOpen Pit
  • Aluminum
  • Alumina
Mining Method
  • Truck & Shovel / Loader
Mine Life... Lock
SnapshotThe 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.


Cadoux Ltd. 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.



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Deposit type

  • Metamorphic hosted


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 generally thicker up to roughly 20 m than the lower zone (‘high’ K2O – K2OCD=2) which is up to approximately 10 m thick.

The mineralisation is close to horizontal, dipping on average about 1° towards 070°. The strike extent is roughly 1 km and across strike width is roughly 500 m for the bulk northern/central part of the deposit, with the total north south dimension being ~1.4 km including the un-mineralised central/south portion (see plan view diagram in body of report). The combined thickness of the mineralisation zones is greatest in the north-eastern part of the deposit (~15 m to 25 m), thinning
to the northwest (~4m) and southwest (~4 m to 12 m).



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Mining Methods


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Crushers and Mills

Milling equipment has not been reported.



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

Operational metrics

Annual ore mining rate  ....  Subscribe
Annual processing rate  ....  Subscribe
* According to 2021 study.

Production Costs

C1 cash costs Alumina USD  ....  Subscribe
Assumed price Alumina USD  ....  Subscribe
* According to 2021 study / presentation.

Project Costs

MetricsUnitsLOM Total
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Closure costs $M USD  ......  Subscribe
Total CapEx $M USD  ......  Subscribe
Gross revenue (LOM) $M USD  ......  Subscribe
After-tax Cash Flow (LOM) $M USD  ......  Subscribe
After-tax NPV @ 8% $M USD  ......  Subscribe
After-tax IRR, %  ......  Subscribe
After-tax payback period, years  ......  Subscribe

Required Heavy Mobile Equipment


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Mine Management

Job TitleNamePhoneProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Apr 8, 2021
....................... Subscription required ....................... Subscription required ........... Subscription required Dec 1, 2023

Aerial view:


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