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Botswana
Motheo T3 Project (Motheo A4 Expansion Project)

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 Location:
86 km NE from Ghanzi, Botswana

  Project Contacts:
Unit 6B, Tau Mall Plot 8624
Ghanzi
Botswana
Phone  ...  Subscription required
Fax+267 651 1938
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
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  • Filings & News

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Overview

StageConstruction
Mine TypeOpen Pit
Commodities
  • Copper
  • Silver
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life12.5 years (as of Jan 1, 2020)
Motheo Copper Mine:
• 5.2Mtpa Processing Facility;
• T3 Open Pit Development;
• A4 Open Pit Development.

Following the award of the Mining License in early July 2021, project construction and development progressed well during the year 2022. Key developments included:
- Completion of all 752 rooms in the Motheo Mine Village;
- Award of the Electrical and Instrumentation installation contract (final process plant contract);
- Erection and back-fill of the primary crusher lower retaining wall;
- Completion of Reclaim tunnel and SAG Mill concrete foundations;
- Completion of Mine Administration Office and Clinic buildings;
- Tailings Storage Facility Bulk fill for walls 50% complete and basin lining commenced;
- Majority of the process plant equipment including the SAG Mill components all delivered to site during the year;
- Structural, Mechanical and Piping (SMP) contractor mobilised and approximately 10% completed by the end of the financial year.


Owners

Source: p. 1
CompanyInterestOwnership
Sandfire Resources Ltd. 100 % Indirect
The Project is held through in-country subsidiary Tshukudu Metals Botswana (Pty) Ltd. Tshukudu Metals Botswana (Pty) Limited (Tshukudu Metals), a wholly owned subsidiary of Sandfire.

Contractors

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Deposit Type

  • Vein / narrow vein
  • Sediment-hosted


Summary:

The T3 deposit occurs within the Ghanzi-Chobe belt in Western Botswana. The stratigraphy in this belt comprises the basal Kgwebe Formation volcanic lithofacies unconformably overlain by the Ghanzi Group sedimentary lithofacies.

The Ghanzi Group is a dominantly siliciclastic marine sedimentary group comprising (in successively higher stratigraphic order) the Kuke, N’gwako Pan, D’Kar and Mamuno Formation sedimentary lithofacies. The Ghanzi Group is an overall fining-upwards succession of sedimentary lithofacies, with sandstone and conglomerates of the Kuke Formation overlain by arkose, siltstone, shale and limestone of the N’Gwako Pan, D’Kar and Mamuno Formations.

The T3 deposit is focused on a NE-SW trending periclinal anticline with a core of N’Gwako Pan Formation that is overlain by a succession of D’Kar Formation sediments. The axial region of the anticline has been breached along a moderately northwest dipping brittle-ductile thrust zone such that moderately northwest dipping D’Kar Formation lithofacies in the hanging-wall of the thrust zone rest with angular contact upon sub-horizontal lithofacies in the footwall.

The T3 Mineral Resource has been defined along an approximate 2km long strike length and 720m downdip and mineralisation remains open at depth. Mineralisation strikes and dips parallel to a 20 30 degree north-west dipping thrust zone, and is considered to be a structurally hosted, epigenetic deposit that formed synchronous with r ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

It is proposed that T3 will be mined by a mining contractor, utilising a conventional truck and shovel (excavator) method with Sandfire maintaining orebody definition, quality control and medium to long-term mine planning functions and management.

The bench heights and equipment selection were reviewed in parallel with the dilution modelling and confirmed the 2.5 m flitch height for ore mining with blasting on 10 m benches.

Grade control drilling is proposed from 20 m vertical intervals in advance of mining with angled holes perpendicular to the orebody using RC drilling methods to minimise contamination.

In general terms, the mining method is:
• Clearing and stripping of suitable material from all disturbed areas into discrete stockpiles for later use in rehabilitation activities;
• Grade control drilling and systematic pit mapping to demarcate ore boundaries;
• Drilling and blasting of ore and waste on 10m benches using choked or semi-choked blasting methods to reduce dilution;
• Load and Haul utilising 250-tonne excavators and 140-tonne class haul trucks mining on ~2.5m high flitches in ore zones and ~3.5m high flitches in bulk waste zones;
• Direct dump of run-of-mine (RoM) ore delivered to the crusher or placed on stockpiles for future rehandle as required;
• Pit dewatering will be managed by a collection of internal and external dewatering and de pressurising bores and in-pit sumps for use within the mining ........


Crushing and Grinding
Source: Subscription required

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Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityProductUnitsAvg. AnnualLOM
Copper Metal in concentrate M lbs 66731
Copper Concentrate kt 100
Silver Metal in concentrate M oz  ......  Subscription required

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
Plant annual capacity  ......  Subscription required
* According to 2020 study.
Subscription required - Subscription is required.

Reserves at September 15, 2020:
The Indicated and Inferred Mineral Resource estimate for T3, at a 0.3% Cu cut-off.

CategoryTonnage CommodityGradeContained Metal
Probable 39.9 Mt Copper 0.9 % 360 kt
Probable 39.9 Mt Silver 12.2 g/t 15.6 M oz
Indicated 48.8 Mt Copper 0.92 % 446 kt
Indicated 48.8 Mt Silver 12.5 g/t 19.6 M oz
Inferred 4.5 Mt Copper 0.74 % 34 kt
Inferred 4.5 Mt Silver 14.7 g/t 2.1 M oz
Total Resource 53.3 Mt Copper 0.9 % 480 kt
Total Resource 53.3 Mt Silver 12.7 g/t 21.8 M oz

Commodity Production Costs:

CommodityUnitsAverage
Credits (by-product) Copper USD  ......  Subscription required&nbs
All-in sustaining costs (AISC) Copper USD  ......  Subscription required *†
C1 cash costs Copper USD  ......  Subscription required&nbs
C1 cash costs Copper USD  ......  Subscription required *†
Pre-tax break-even price Copper USD  ......  Subscription required&nbs
Assumed price Copper USD  ......  Subscription required&nbs
Assumed price Silver USD  ......  Subscription required&nbs
* According to 2020 study / presentation.
† Net of By-Product.
Subscription required - Subscription is required.

Operating Costs:

Units2020
OP mining costs ($/t mined) USD 2.76 *
OP mining costs ($/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 2020 study.
Subscription required - Subscription is required.

2020 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M USD  ......  Subscription required
Gross revenue (LOM) $M USD  ......  Subscription required
EBITDA (LOM) $M USD  ......  Subscription required
Pre-tax Cash Flow (LOM) $M USD  ......  Subscription required
After-tax Cash Flow (LOM) $M USD  ......  Subscription required
Pre-tax NPV @ 7% $M USD  ......  Subscription required
After-tax NPV @ 7% $M USD  ......  Subscription required
Pre-tax IRR, %  ......  Subscription required
After-tax IRR, %  ......  Subscription required
Pre-tax payback period, years  ......  Subscription required
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Heavy Mobile Equipment as of April 20, 2022:
HME TypeModelSizeLeased or
Contractor
Dozer ....................... Subscription required Leased
Excavator ....................... Subscription required 250 t Leased
Loader ....................... Subscription required Leased
Truck (dump) ....................... Subscription required 150 t Leased
Truck (haul) ....................... Subscription required Leased
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 24, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 24, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 24, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 24, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2021

Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
Corporate Presentation 2022
Corporate Presentation 2022
Financial Review 2022
Other 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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