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Australia
Siviour Project

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 Location:
14 km W from Arno Bay, South Australia, Australia

  Project Contacts:
36 North Terrace
Kent Town
South Australia, Australia
5067
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  • Overview
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  • Mining
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  • Production
  • Reserves
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Overview

StagePermitting
Mine TypeOpen Pit
Commodities
  • Graphite
Mining Method
  • Truck & Shovel / Loader
Mine Life40 years (as of Jan 1, 2020)
Siviour is the second largest Proven Reserve of graphite globally and the world’s largest reported graphite Reserve outside of Africa.

Renascor is developing a vertically integrated operation within South Australia consisting of a mine, concentrator and downstream manufacturing facility to produce Purified Spherical Graphite (PSG) via eco-friendly chemical purification for sale to anode makers and use in Li-ion batteries for Electric Vehicles.

Renascor is currently updating previous studies to consider substantial increase in Stage 1 PSG production capacity beyond the currently planned 28,000tpa of PSG, as well as additional staged PSG expansions.


Owners

Source: p. 2, 12
CompanyInterestOwnership
Renascor Resources Ltd. 100 % Indirect
The Siviour deposit is located within Mineral Lease (ML) 6495 (granted on 5 April 2019, expiring 4 April 2040) and Exploration Licence 6469 (previously EL5618), held by Ausmin Development Pty Ltd (Ausmin). Renascor, through its wholly-owned subsidiary Eyre Peninsula Minerals Pty Ltd (EPM), acquired 100% of Ausmin and its tenements in 2018.

Contractors

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Deposit Type

  • Metamorphic
  • Sedimentary


Summary:

The graphite mineralisation at Siviour is hosted within Meso-Proterozoic metasedimentary rocks of the Hutchison Group. The mineralisation is within a nominally 30 m-thick band of pelitic schist that occurs within a thick calc-silicate sequence.

Mineralisation hosted within a sequence of micro-gneiss, metasedimentary rocks and schists. The mineralisation is generally tabular, oriented east-west and forms an undulating surface that dips shallowly to the southwest, in the southern area, and more steeply to the north in the northern area. In the west the strike of the mineralisation has been interpreted, from geophysical data, to swing sharply towards the north and in the east is partially dislocated by a fault zone although, again from geophysical data, is anticipated to extend further to the east to Siviour East and Paxtons.

The main zone of mineralisation extends over 2.9 km east-west and 1.6 km north-south. The horizontal width ranges from 550 m within the central area, at the Siviour Prospect, to 125 m south of Buckies.

The Mineral Resource has an average thickness of 21 m (range of 0.45 m to 52 m) and the depth to the top of the mineralised horizons ranges from 1 m to 108 m with an average depth of 40 m.

The geometry of the Siviour Graphite Deposit is generally flat-lying, with thick, flat, gently folded graphite mineralisation sitting from within 5 m to 15 m of surface.


Mining Methods

  • Truck & Shovel / Loader


Summary:

The geometry of the Siviour Graphite Deposit is generally flat-lying, with thick, flat, gently folded graphite mineralisation sitting from within 5 m to 15 m of surface. This orientation facilitates a single shallow mining design that can be mined via conventional open pit mining methods.

The DFS (Graphite Concentrates, 2019) pit optimisation and mining study resulted in a mining schedule conducted in 14 stages mined over a period of 26 years. Mining commences in the southern portion of the orebody to permit mining of a higher-grade corridor in the mine’s first year.

The proposed mining method is conventional truck and shovel open pit bench mining. Free digging in alluvial material makes up around 15% of all overburden, while drill and blast is required for all other lithologies.

Initially, mining will be conducted on a 24-hour basis in order to access high grade ore as soon as possible, before dropping to day-shift only in years 2 and 3. Mining will return to a 24-hour operation in Year 5, coinciding with the process Concentrate plant expanding to 1,650ktpa capacity.

The DFS has adopted a mining fleet comprising a Komatsu PC2000 200t excavator, HD785 haul trucks with a 60m3 standard tub capacity and a Komatsu WA500-7 wheeler loader. Komatsu HD785-7 trucks were selected as they are an efficient match with the PC2000 excavator, with 5 passes required for a full load.

The DFS has assumed that the mining fleet, along with a ........


Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

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Projected Production:

CommodityProductUnitsAvg. AnnualLOM
Graphite USPG kt 281,118
Graphite Fines kt 1,201
Graphite Concentrate kt 1054,394

Operational Metrics:

Metrics
Stripping / waste ratio  ......  Subscription required
Ore tonnes mined, LOM  ......  Subscription required
Tonnes milled, LOM  ......  Subscription required
Annual production capacity  ......  Subscription required
Annual processing capacity  ......  Subscription required
* According to 2020 study.
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Reserves at August 18, 2022:
The Mineral Resource is reported above a 2.3% TGC cut-off grade.

CategoryTonnage CommodityGradeContained Graphite
Proven 15.8 Mt Graphite 8.4 % 1.3 Mt
Probable 35.8 Mt Graphite 6.9 % 2.5 Mt
Proven & Probable 51.5 Mt Graphite 7.4 % 3.8 Mt
Measured 16.8 Mt Graphite 8.6 % 1.4 Mt
Indicated 46 Mt Graphite 7.1 % 3.3 Mt
Inferred 30.7 Mt Graphite 7 % 2.2 Mt
Total Resource 93.5 Mt Graphite 7.3 % 6.9 Mt

Commodity Production Costs:

CommodityUnitsAverage
Credits (by-product) Graphite USD  ......  Subscription required&nbs
Cash costs Graphite USD  ......  Subscription required&nbs
Cash costs Graphite USD  ......  Subscription required *†
Assumed price Graphite USD  ......  Subscription required&nbs
* According to 2020 study / presentation.
† Net of By-Product.
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2020 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M AUD  ......  Subscription required
Working capital $M AUD  ......  Subscription required
Sustaining CapEx $M AUD  ......  Subscription required
Total CapEx $M AUD  ......  Subscription required
Total OpEx $M AUD  ......  Subscription required
Total Taxes $M AUD  ......  Subscription required
Gross revenue (LOM) $M AUD  ......  Subscription required
Net revenue (LOM) $M AUD  ......  Subscription required
EBITDA (LOM) $M AUD  ......  Subscription required
After-tax Cash Flow (LOM) $M AUD  ......  Subscription required
After-tax NPV @ 10% $M AUD  ......  Subscription required
After-tax IRR, %  ......  Subscription required
After-tax payback period, years  ......  Subscription required
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Proposed Heavy Mobile Equipment as of November 11, 2019:
HME TypeModelSizeQuantity
Dozer ....................... Subscription required ....................... Subscription required
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Subscription required - Subscription is required.

Mine Management:

Job TitleNamePhoneEmailProfileRef. Date
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Dec 8, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 8, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 8, 2022
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Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
Year-end Mineral Reserves 2022
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Press Release 2018
Other 2017
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