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Malaysia
Bau Project

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 Location:
1 km S from Bau, Malaysia

  Project Contacts:
45 Ventnor Ave
West Perth
Western Australia, Australia
6008
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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

StageFeasibility
Mine TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Mine Life4 years (as of Jan 1, 2018)
All aspects of the Bau Project related to deposits Jugan and Bekajang (BYG-Krian) are deemed to be at least to a Pre-feasibility Study of December 2013 level, with some components deemed to be Feasibility Report Study level.

Additional technical work to optimise certain factors related to gold process recovery proceeded the post-Pre-feasibility study, and the expectation is to update the additional study work into the Prefeasibility Study prior to assessing Project financing options.


Owners

Source: p. 5
CompanyInterestOwnership
Besra Gold Inc. 97.8 % Indirect
North Borneo Gold Sdn Bhd (operator) 100 % Direct
The Bau Gold Project JV is managed by Besra Gold Inc. (formally Olympus Pacific Minerals Inc)) ("Besra") through its majority owned subsidiary, North Borneo Gold Sdn Bhd, ('NBG') a Malaysian incorporated company. Through NBG, Besra Gold Inc. controls, directly and indirectly, a 97.8% interest (92.8% on an equity adjusted basis) of the Bau Gold Project. The other Joint Venturers are a Malaysian mining group, Gladioli Enterprises Sdn Bhd (Gladioli).

Contractors

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Deposit Type

  • Sediment-hosted
  • Vein / narrow vein
  • Porphyry
  • Skarn


Summary:

The known deposits in the Bau Goldfield can be characterized by four distinctive gold mineralisation styles that exhibit both lateral and vertical geochemical and mineralogical zonation with respect to the Bau Trend intrusives. In general these styles are:
• Sediment Rock-Hosted Disseminated Gold Deposits, e.g. Jugan; Bukit Sarin;
• Silica replacement (jasperoid) and open space siliceous breccias, e.g. Tai Parit; Bukit Young Pit, Bekajang;
• Mangano-calcite-quartz veins, e.g. Tai Ton; Pejiru, Kapor;
• Magmatic – Hydrothermal porphyry related deposits with/without calc-silicate skarn, e.g. Sirenggok, Sey Seng, Ropih, Arong Bakit, Juala West.

Sirenggok
The Sirenggok deposit lies approximately 1.5km NE of Bau Township. The current resource modelling has outlined an Inferred Resource of 8.346 million tonnes at 1.14 g/t Au for 307,000 ounces at a lower cut-off of 0.5g/t Au.

Jugan
The Jugan Deposit is centred on Jugan Hill, approximately 7 km NE of Bau, within a kilometre of the Bau-Kuching Road. The current measured and indicated resource modelled stands at 17.91 million tonnes at 1.51 g/t Au for 870,500 ounces gold. Inferred resources are 1.77 million tonnes at 1.57 g/t Au for 89,800 ounces gold.

Pejiru Sector
The Pejiru Sector between 5 km and 8 km SW of Bau, comprises four deposits that have been modelled. These are the Pejiru-Bogag, Pejiru Extension, Kapor and Boring deposits. As a result of the current reso ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The mining method is planned as traditional open pit mining utilising hydraulic excavators and in- pit trucks for haulage to ROM, dump or TSF construction. Rock breaking will be a combination of free digging, rip and dig using dozer and drill-andblast depending upon the rock characteristics. Two ramps are designed, one carrying ore and the other waste and positioned relative to ROM and dump/TSF. A surface traffic system has been designed to handle traffic flows.

As the deposit is near surface an open pit mining method is selected. The deposit outcrops on a hill with little or no waste cover, therefore no pre-strip is applicable.

Both contract-mining and owner-operator methods investigated, with contract mining the preferred option at this stage.


Crushing and Grinding
Source: Subscription required

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Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityUnitsAvg. AnnualLOM
Gold oz 116,000463,650
All production numbers are expressed as metal in concentrate.

Operational Metrics:

Metrics
Stripping / waste ratio 1.7 *
Waste tonnes, LOM 18,569,000 t *
Ore tonnes mined, LOM 10,927,500 t *
Daily processing capacity 8,000 t *
Tonnes processed, LOM 10,927,500 t *
Annual processing capacity 2,920,000 t *
* According to 2013 study.

Reserves at November 16, 2018:
The applied cut-off grade of 0.5 Au g/t, used to define boundaries between mineralised and unmineralized domains for the Mineral Resource estimate.

CategoryTonnage CommodityGrade
Proven 3,418,650 t Gold 1.47 g/t
Probable 7,243,920 t Gold 1.81 g/t
Proven & Probable 10,662,570 t Gold 1.7 g/t
Measured 3,405,600 t Gold 1.52 g/t
Indicated 17,879,700 t Gold 1.67 g/t
Measured & Indicated 21,285,300 t Gold 1.64 g/t
Inferred 51,329,000 t Gold 1.32 g/t

2013 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M USD  ......  Subscription required
Sustaining CapEx $M USD  ......  Subscription required
Total CapEx $M USD  ......  Subscription required
Processing OpEx $M USD 196.3
G&A costs $M USD 6
Total OpEx $M USD  ......  Subscription required
Gross revenue (LOM) $M USD  ......  Subscription required
Net 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 @ 8% $M USD  ......  Subscription required
After-tax NPV @ 8% $M USD  ......  Subscription required
Pre-tax IRR, %  ......  Subscription required
After-tax IRR, %  ......  Subscription required
Pre-tax payback period, years  ......  Subscription required
Subscription required - Subscription is required.


Proposed Heavy Mobile Equipment as of December 15, 2013:
HME TypeModelSizeQuantity
Cable bolter ....................... Subscription required
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Subscription required - Subscription is required.

Mine Management:

Job TitleNameEmailRef. Date
....................... Subscription required ....................... Subscription required ....................... Subscription required Jan 23, 2023
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Quarterly Report 2022
................................... Subscription required 2020
Management Discussion & Analysis 2018
Year-end Mineral Reserves 2018
Feasibility Study Report 2013
Subscription required - Subscription is required.

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