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Australia
Katanning Project

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 Location:
36 km NE from Katanning, Western Australia, Australia

  Project Contacts:
Level 4, 251 St. Georges Terrace
Perth
Australia
WA 6000
Phone  ...  Subscription required
Fax+61-8-9220-9820
EmailEmail
WebsiteWeb
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  • Overview
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Overview

StagePre-Feasibility
Mine TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Mine Life11 years (as of Jan 1, 2022)


Owners

Source: p. 52
CompanyInterestOwnership
Ausgold Limited 100 % Indirect
The reported resources are all from 100% owned Ausgold Exploration Pty Ltd Mining Tenements (wholly owned subsidiary of Ausgold Limited), which include M70/210, M70/211, E70/2928 and M 70/488.

Contractors

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Deposit Type

  • Vein / narrow vein
  • Metamorphic


Summary:

The project includes 2 main deposit areas, comprising Jinkas in the north, and Dingo in the south. The Jinkas area is subdivided into a set of named mineralised zones including Jinkas Hangingwall, Jinkas Footwall-White Dam, Jackson, and Olympia lodes.

The majority of the project area is overlain by residual clays, with outcrop mostly limited to remnants of lateritic duricrust on topographic highs.

Gold mineralisation is hosted by medium to coarse-grained mafic gneisses, which dip at around 30° - 45° towards grid east (68°). These units represent Archaean greenstones metamorphosed to granulite facies.

The mineralised gneissic units are interlayered with barren quartz-monzonite sills up to approximately 120 m thick and are cross-cut by several Proterozoic dolerite dykes that post-date mineralisation and granulite metamorphism.

Gold predominantly occurs as free gold associated with disseminated pyrrhotite and magnetite, with lesser amounts of pyrite and chalcopyrite and traces of molybdenite. Thin remnant quartz veins are associated with higher grade zones.

The gold mineralisation at the KGP is localised along its eastern boundary by a regionally significant thrust fault-bound block which extends over at least 17 km of strike length. Thrust faults also define the eastern and western boundaries of the rocks hosting the gold mineralisation. The gold mineralisation is localised into three laterally continuous lodes which exten ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The Project will be mined by open pit mining methods using conventional mining equipment. The final pit design is based on the Ore Reserve. The selected mining method, design and extraction sequence are tailored to suit orebody characteristics, minimise dilution and ore loss, defer waste movement, minimise rates of vertical mining advance, utilise planned processing plant capacity and expedite free cash generation – all in a safe manner.

The open pit scheduling is based on realistic mining productivity, with readily achievable mining rates and consistent material movements. The mining operating costs are based on contractors' budgeted quotes for drilling, blasting, loading and haulage, and were reviewed using first principles.

Whittle open pit optimisations were completed using the resource model created by Ausgold. The model was built with block dimensions approximating an SMU of 2.5 m by 2.5 m by 2.5 m and therefore includes sufficient dilution and ore loss for this level of study.

Pit optimisation, excluding Inferred Mineral Resource material and applying a 0.6 g/t Au cut-off grade, produced a pit shell containing 36.5 Mt of mill feed at an average grade of 1.30 g/t Au.

Pit shell selection considered both the overall project value and the current design capacity of the tailings storage facility (TSF). Based on this, the 0.85 revenue factor (RF=0.85) pit shell was selected for the pit design; however, the larger RF=1 pit shel ........


Crushing and Grinding
Source: Subscription required

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Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityUnitsAvg. AnnualLOM
Gold koz 1051,160
All production numbers are expressed as metal in doré.

Operational Metrics:

Metrics
Stripping / waste ratio  ......  Subscription required
Waste tonnes, LOM  ......  Subscription required
Ore tonnes mined, LOM  ......  Subscription required
Total tonnes mined, LOM  ......  Subscription required
Tonnes processed  ......  Subscription required
Annual processing capacity  ......  Subscription required
Annual mining rate  ......  Subscription required
* According to 2022 study.
Subscription required - Subscription is required.

Reserves at May 25, 2022:
Ore Reserves are calculated using a cut-off grade of 0.60 g/t Au.
The Mineral Resource is reported at a lower cut-off grade of 0.6 g/t Au and above 150 m RL (approximately 220 m depth). The underground Mineral Resource is reported at a 1.8 g/t Au cut-off grade and beneath 150 m RL.
Ore Reserves are calculated using a cut-off grade of 0.60 g/t Au.

CategoryTonnage CommodityGradeContained Metal
Probable 32 Mt Gold 1.25 g/t 1.28 M oz
Measured 19,039,000 t Gold 1.31 g/t 800,000 oz
Indicated 26,841,000 t Gold 1.14 g/t 984,000 oz
Inferred 9,540,000 t Gold 1.03 g/t 370,000 oz
Total Resource 55,980,000 t Gold 1.21 g/t 2,160,000 oz

Commodity Production Costs:

CommodityUnitsAverage
All-in sustaining costs (AISC) Gold AUD  ......  Subscription required&nbs
C1 cash costs Gold AUD  ......  Subscription required&nbs
C2 total cash costs Gold AUD  ......  Subscription required&nbs
C3 fully allocated costs Gold AUD  ......  Subscription required&nbs
Assumed price Gold AUD  ......  Subscription required&nbs
* According to 2022 study / presentation.
Subscription required - Subscription is required.

Operating Costs:

Units2022
OP mining costs ($/t milled) AUD 28.5 *
Processing costs ($/t milled) AUD  ......  Subscription required
G&A ($/t milled) AUD  ......  Subscription required
* According to 2022 study.
Subscription required - Subscription is required.

2022 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Pre-Production capital costs $M AUD  ......  Subscription required
Sustaining CapEx $M AUD  ......  Subscription required
Closure costs $M AUD  ......  Subscription required
OP OpEx $M AUD  ......  Subscription required
Processing OpEx $M USD 557.4
Refining and transportation $M AUD  ......  Subscription required
G&A costs $M AUD 119.2
Total OpEx $M AUD  ......  Subscription required
Total Taxes $M AUD  ......  Subscription required
Royalty payments $M AUD  ......  Subscription required
Gross revenue (LOM) $M AUD  ......  Subscription required
Operating margin (LOM) $M AUD  ......  Subscription required
EBITDA (LOM) $M AUD  ......  Subscription required
Pre-tax Cash Flow (LOM) $M AUD  ......  Subscription required
After-tax Cash Flow (LOM) $M AUD  ......  Subscription required
Pre-tax NPV @ 5% $M AUD  ......  Subscription required
After-tax NPV @ 5% $M AUD  ......  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 August 12, 2022:
HME TypeSizeQuantity
Excavator 200 t ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNamePhoneProfileRef. Date
....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Aug 29, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 29, 2022
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
Pre-Feasibility Study Report 2022
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Subscription required - Subscription is required.

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