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Botswana
Tshukudu (T3) Project

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 Location:
179 km SW from Maun, Botswana

  Project Contacts:

P/bag 00427
Botswana
Gaborone
Phone  ...  Subscription required
Fax3935323
EmailEmail
WebsiteWeb
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Overview

StagePermitting
Mine TypeOpen Pit
Commodities
  • Copper
  • Silver
Mining Method
  • Truck & Shovel / Loader
Processing
  • Flotation
Mine Life11.5 years (as of Jan 1, 2019)
Latest NewsMOD Resources backs latest Sandfire takeover offer     June 25, 2019


Owners & OPERATOR

Source:
CompanyInterestOwnership
Sandfire Resources Ltd. 100 % Indirect
Tshukudu Metals Botswana (Pty) Ltd. (operator) 100 % Direct
MOD owns 100% of a UK incorporated company, Metal Capital Limited, which is the 100% owner of Botswana incorporated Tshukudu Metals Botswana (Pty) Ltd, which 100% owns and operates the T3 Copper Project.

Deposit Type

  • Vein / narrow vein
  • Sediment-hosted


Summary:

The copper and silver mineralisation which is the basis for the T3 Mineral Resource is interpreted to be a vein related sediment hosted deposit which is different to other known deposits and mines in the central Kalahari Copper Belt in Botswana.

The Mineral Resource is defined along a >1.5km long strike length and the copper and silver sulphide mineralisation occur in veins and disseminations within host rocks that include mudstone, siltstone, sandstone and marl units considered part of the D’Kar Formation. Footwall to the copper/silver resource is generally defined by low-grade disseminated lead and zinc mineralisation within sediments also considered part of the D’Kar Formation.

Mineralisation is highly continuous and is dominated by chalcopyrite with chalcocite and bornite copper sulphides occurring in lesser amounts. Mineralisation extends from shallow depth (~25 metres below surface) to the limit of drilling to date at ~480 metres vertical depth, well below the planned open pit. Minor malachite and chrysocolla oxide mineralisation occurs near surface between ~25-50 metres depth.

The T3 mineralisation type can be described as a sheeted vein deposit dipping at 20-30 degrees to the northwest with varying widths of disseminated mineralisation around the veins. The deposit may represent multiple stacked, mineralised veins and units, thrusted one upon the other.

This interpretation opens up potential for resource extensions along strike east and west, as well as at depth towards the north and down dip. Drilling continues to test for potential underground extensions at depth across the T3 deposit.


Mining Methods

  • Truck & Shovel / Loader


Summary:

The T3 deposit is proposed to be mined utilising a mining contractor and conventional truck and excavator (backhoe configuration) open pit mining methods, with MOD maintaining orebody definition, quality control and medium to long term mine planning functions and management.

The general mining method is summarised as follows:
• Clearing and stripping of suitable material from all disturbed areas into discrete stockpiles for later use in rehabilitation activities
• Systematic pit mapping to demarcate ore boundaries
• Drilling and blasting of ore and waste on 10 metre benches
• Load and Haul utilising 120-250 tonne excavators and 140 tonne capacity haul trucks mining on ~2.5-metre-high flitches in ore zones and ~3.5-metre-high flitches in bulk waste zones
• Ore will be direct fed to the crusher or placed on stockpiles for future rehandle as required
• Pit dewatering is expected to be minimal and will be managed by a collection of external dewatering and depressurising bores (if required) and in-pit sumps for use within the mining operation.


Crushing and Grinding


Processing

  • Flotation

Flow Sheet: Subscription required

Summary:

The T3 process flowsheet incorporates the following major process operations:
• Primary crushing
• Coarse ore stockpile with reclaim system
• Open circuit semi-autogenous grinding (“SAG”) with ball mill operating in closed circuit
• Rougher flotation
• Rougher concentrate regrind mill
• Cleaner flotation
• Cleaner scavenger flotation
• Final concentrate and flotation tails thickening
• Concentrate filtration
• Fresh water and tailings reclaim water supply
• Reagent preparation and distribution.

The process design criteria incorporated outcomes from the testwork program and mine schedule as well as benchmark data for similar operations. The key criteria selected for the plant design are:
• The mill will process a total of 34.4Mt of ROM ore for 11.5 years
• The annual ROM treatment is 3.0Mtpa with a peak treatment rate of 3.2 Mt/a, at a primary grind size of 80% passing 180µm
• Design availability of 91.5% ........

Recoveries & Grades:

CommodityParameterAvg. LOM
Copper Recovery Rate, % 92.9
Copper Head Grade, % 1
Copper Concentrate Grade, % 30.4
Silver Recovery Rate, % 88
Silver Head Grade, g/t 13.2
Silver Concentrate Grade, g/t 383

Projected Production:

CommodityUnitsAvg. AnnualLOM
Copper M lbs 61702
Silver M oz  ......  Subscription required
All production numbers are expressed as metal in concentrate.

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, LOM  ......  Subscription required
Annual processing capacity  ......  Subscription required
Annual mining rate  ......  Subscription required
* According to 2019 study.
Subscription required - Subscription is required.

Reserves at March 25, 2019:

CategoryTonnage CommodityGradeContained Metal
Probable 34.4 Mt Copper 1 % 342.7 kt
Probable 34.4 Mt Silver 13.2 g/t 14.6 M oz

Commodity Production Costs:

CommodityUnitsAverage
Credits (by-product) Copper USD  ......  Subscription required *
All-in sustaining costs (AISC) Copper USD  ......  Subscription required *†
C1 cash costs Copper USD  ......  Subscription required *
C1 cash costs Copper USD  ......  Subscription required *†
C2 total cash costs Copper USD  ......  Subscription required *†
Pre-tax break-even price Copper USD  ......  Subscription required *
Assumed price Copper USD  ......  Subscription required *
* According to 2019 study / presentation.
† Net of By-Product.
Subscription required - Subscription is required.

Operating Costs:

Units2019
OP mining costs ($/t mined) USD 2.63 *
OP mining costs ($/t milled) USD  ......  Subscription required
Processing costs ($/t milled) USD  ......  Subscription required
Total operating costs ($/t milled) USD  ......  Subscription required
* According to 2019 study.
Subscription required - Subscription is required.

2019 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M USD  ......  Subscription required
Sustaining CapEx $M USD  ......  Subscription required
OP OpEx $M USD  ......  Subscription required
G&A costs $M USD 60
Net revenue (LOM) $M USD  ......  Subscription required
EBITDA (LOM) $M USD  ......  Subscription required
Pre-tax Cash Flow (LOM) $M USD  ......  Subscription required
Pre-tax NPV @ 8% $M USD  ......  Subscription required
Pre-tax IRR, %  ......  Subscription required
Pre-tax payback period, years  ......  Subscription required
Subscription required - Subscription is required.

Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jan 28, 2021
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Subscription required - Subscription is required.

News:

NewsDate
MOD Resources backs latest Sandfire takeover offer June 25, 2019
MOD Resources: T3 Pre-Feasibility Study - Robust, Long Life Copper Mine January 31, 2018

Aerial view:

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