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Mozambique
Balama Central Project

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 Location:
47 km SW from Montepuez, Mozambique

  Project Contacts:
Edificio Solar das Acacias, Avenida Julius Nyerere 4000, Loja 05
Cidade de Maputo
Mozambique
Phone  ...  Subscription required
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News

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Overview

StagePermitting
Mine TypeOpen Pit
Commodities
  • Graphite
Mining Method
  • Truck & Shovel / Loader
Processing
  • Flotation
Mine Life27 years (as of Jan 1, 2018)
Latest NewsBattery Minerals to help deliver ‘revolution in electric vehicles’ with Balama     December 13, 2018


Owners

Source: p. 37
CompanyInterestOwnership
Battery Minerals Ltd. 100 % Indirect
Suni Resources SA. 100 % Direct
The lease is currently held by Suni Resources a wholly owned subsidiary of Battery Minerals.

Deposit Type

  • Metamorphic


Summary:

The Balama Central comprises two prospects named Lennox and Byron which are composed of relatively simple geology with interpreted steeply dipping northwest host lithologies. The graphite forms as a result of high grade (amphibolite) metamorphism of organic carbonaceous matter.


Mining Methods

  • Truck & Shovel / Loader


Summary:

Mining at Balama Central will be completed with standard truck and excavator methods. Drill and blast of the fresh material will be required. Pit designs for Lennox and Byron were based on Whittle pit optimisations for each deposit considering project specific unit costs, prices, recoveries and geotechnical inputs. The pit optimisations were constrained within the limits of the Indicated Resources for each deposit. The current design for the Lennox pit extends to a depth of approximately 90m, whilst the current design for Byron pit extends to a depth of approximately 135m deep. Each pit will have a single waste dump, located to the east of each excavation. Pit ramps will be oriented to ensure that both ore and waste haulage distances are minimized. Long-term ore stockpiles will be located between each pit and the ROM pad.

A mining schedule was completed based on the processing plant target production of ~58 ktpa of TGC concentrate at 96% TGC and practical mining constraints. A 75% ramp-up was applied in the first year. To enhance early cashflow, the target feed grade to the plant will average 12.5% TGC. This is maintained for 29 years before reducing.

The cut-off grade was determined through the application of project unit operating costs and recoveries. The recoveries were determined by deposit scale geometallurgical assessment of samples representative of the variable lithology types, oxidation and TGC% grade ranges. The marginal cut off estimated to be 3.4% TGC for the weathered material, and 2.9% TGC for the fresh material. An elevated cut-off grade of 6% TGC was selected as it produced sufficient mine life.

Material between the marginal cut-off and 6% TGC will be placed on a mineralised waste dump, separate from the main waste dumps.

The Mineral Resource to Ore Reserve conversion is 74% based on Probable Ore Reserves over Indicated Mineral Resources at a 6% TGC cut-off grade.


Crushing and Grinding


Processing

  • Flotation

Flow Sheet: Subscription required

Summary:

The Balama Central process plant will process run of mine (ROM) ore at an average rate of 480,000tpa at over 12.5% TGC to produce 58,000 tpa of dry graphite concentrate with a grade of +96% total graphitic carbon (TGC). The flowsheet has been developed based on the results of extensive test work performed on various samples. Battery Minerals expects that the Balama Central process plant will comprise of the following:

• ROM pad, designated stockpile areas and ability to blend ore on pad.
• Primary jaw crusher and crushed ore stockpile (COS).
• Primary closed-circuit rod mill.
• Rougher flotation.
• Concentrate regrinding and concentrate cleaning.
• Concentrate filtration.
• Concentrate drying, screening, and bagging.
• Tails thickening and disposal.
• Water and Air services.
• Reagents.

Recoveries & Grades:

CommodityParameterAvg. LOM
Graphite Recovery Rate, %  ......  Subscription required
Graphite Head Grade, % 12.5
Graphite Concentrate Grade, %  ......  Subscription required
Subscription required - Subscription is required.

Projected Production:

CommodityUnitsAvg. Annual
Graphite kt 58
All production numbers are expressed as concentrate.

Operational Metrics:

Metrics
Stripping / waste ratio  ......  Subscription required
Ore tonnes mined, LOM  ......  Subscription required
Total tonnes mined, LOM  ......  Subscription required
Tonnes processed, LOM  ......  Subscription required
Annual processing rate  ......  Subscription required
Annual mining rate  ......  Subscription required
* According to 2018 study.
Subscription required - Subscription is required.

Reserves at December 4, 2018:

CategoryTonnage CommodityGradeContained Graphite
Probable 19.66 Mt Graphite 11.06 % 2.17 Mt
Indicated 32.9 Mt Graphite 10.2 % 3.36 Mt

Commodity Production Costs:

CommodityUnitsAverage
C1 cash costs Graphite USD  ......  Subscription required *
Assumed price Graphite USD  ......  Subscription required *
* According to 2018 study / presentation.
Subscription required - Subscription is required.

2018 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Pre-Production capital costs $M USD  ......  Subscription required
Net revenue (LOM) $M USD  ......  Subscription required
Pre-tax IRR, %  ......  Subscription required
Subscription required - Subscription is required.

Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 23, 2019
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2018
................................... Subscription required 2018
Subscription required - Subscription is required.

News:

NewsDate
Battery Minerals to help deliver ‘revolution in electric vehicles’ with Balama December 13, 2018

Aerial view:

Subscription required - Subscription is required.

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