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Burkina Faso
Youga Mine (Youga Operation)

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 Location:
180 km SE from Ougadougou, Burkina Faso

  Regional Office:
S08 BP 11197, Ouagadougoy 08
Burkina Faso
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
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  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life2031
Avesoro Holdings Ltd., a private equity firm, acquired the mine in December 2018. Mine operations data has not been publicly available since then.


Owners

Source: p. 4
CompanyInterestOwnership
Government of Burkina Faso 10 % Direct
Avesoro Holdings Ltd 90 % Indirect
Burkina Mining Company SA 90 % Direct
On February 29, 2016, the Endeavour Mining Corp announced and completed the sale of its non-core Youga Mine to MNG Gold for $25.3 million.

Youga was acquired by the Avesoro Resources Inc. on 18 December 2017.

Avesoro Resources was delisted at TSX in January 2020.

Contractors

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Deposit Type

  • Mesothermal
  • Breccia pipe / Stockwork
  • Vein / narrow vein


Summary:

The gold deposits within the Youga, Ouaré and Balogo properties can be described as epigenetic, mesothermal (“lode”) gold deposits, demonstrating a strong structural control and relationship to regional scale shear zones. Similar deposits can be found in other areas of the late Proterozoic Birimian terranes of West Africa.

At Youga and Ouaré, gold mineralisation is intimately associated with pervasive silicification, quartz veining and sulphidation (predominantly pyrite), although sulphide content is extremely low (generally <1%).

The majority of the Youga gold deposits are hosted within the Tarkwaian sandstones, while Ouaré is hosted along the sheared contact between mafic volcanics to the north and quartz-feldspar porphyritic rocks to the south.

Within the Youga deposit, there are two distinct styles of mineralisation:
• Moderately to weakly silicified arkose with quartz stockwork veining and pyrite is the predominant sulphide which generally grades between 0.5 g/t and 2 g/t
• Intensely silicified arkose with abundant quartz veins and more diverse sulphides which generally grades >3 g/t.

The Ouaré mineralisation is on the Bitou 2 Exploration Permit and has been delineated in three zones, along a strike length of 2 km.

At the Ouaré Main zone, mineralisation occurs as quartz veins within shear zones at the contacts between felsic and mafic volcanics. Orpailleur workings have been developed along mineralised str ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The proposed method of mining for Youga and Ouaré is a conventional open pit method using drilling and blasting, loading with excavators, and hauling with articulated dump trucks. The ore will be extracted by small hydraulic excavator (30 t to 40 t) to maximise selectivity where the orebody is narrow, and the waste will be loaded by slightly larger hydraulic excavators (70 t to 80 t) to allow for higher productivity.

There is potential for additional Mineral Resources to be exploited by open pit mining methods, although this is dependent on improved project economics and/or reclassification of the Inferred Resources through additional drilling. Consideration of underground mining has not been necessary at this stage of the Project, although if mineralisation were found to continue at depths beyond economic open pit limits then this could be considered in the future.

The evaluation of Youga and Ouaré assumes that the ore will be transported to the main processing facility at Youga. The optimal production rate is therefore constrained by the capacity of this plant, which is nominally set at 1.1 Mt/year. However, provision is made for the addition of an oxygen plant in January 2018, which will increase the plant throughput by 8% to 1.2 Mt/a.


Crushing and Grinding
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Processing

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Summary:

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Production:

CommodityUnits20182017201620152014
Gold oz 110,199115,32144,40368,22376,561
All production numbers are expressed as metal in doré.
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Operational Metrics:

Metrics20182017201620152014
Tonnes milled 1,237,149 t1,199,577 t1,119,197 t1,064 kt991 kt
Plant annual capacity 1.12 Mt1.12 Mt
Total tonnes mined 8,026 kt4,993 kt
Ore tonnes mined 1,335 kt1,161 kt
Waste 6,684 kt3,562 kt
Stripping / waste ratio 5 3.1

Reserves at December 31, 2018:
Mineral Reserve Cut-off grade: 0.70 g/t Au.
Mineral Resource Cut-off grade: 0.55 g/t Au.

CategoryOreTypeTonnage CommodityGradeContained Metal
Proven In-Situ (OP) 0.02 Mt Gold 5.98 g/t 3.5 koz
Probable Stockpiles 0.22 Mt Gold 1.15 g/t 8.3 koz
Probable In-Situ (OP) 6.16 Mt Gold 1.65 g/t 327.6 koz
Proven & Probable Stockpiles 0.22 Mt Gold 1.15 g/t 8.3 koz
Proven & Probable In-Situ (OP) 6.18 Mt Gold 1.67 g/t 331.1 koz
Measured In-Situ (OP) 0.02 Mt Gold 6.38 g/t 3.7 koz
Indicated In-Situ (OP) 10.84 Mt Gold 1.59 g/t 553.5 koz
Measured & Indicated In-Situ (OP) 10.85 Mt Gold 1.6 g/t 557.2 koz
Inferred In-Situ (OP) 5.9 Mt Gold 1.46 g/t 277 koz

Commodity Production Costs:

CommodityUnits2015
Cash costs (sold) Gold USD 856 / oz  
All-in sustaining costs (AISC) Gold USD 913 / oz  

Operating Costs:

Units20172015
OP mining costs ($/t mined) USD 1.713.86
Processing costs ($/t milled) USD  ......  Subscription required
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Heavy Mobile Equipment as of January 1, 2019:
HME TypeModelQuantityStatus
Backhoe ....................... Subscription required ....................... Subscription required Existing
Dozer (crawler) ....................... Subscription required ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Drill ....................... Subscription required ....................... Subscription required Existing
Grader ....................... Subscription required ....................... Subscription required Existing
Loader (FEL) ....................... Subscription required ....................... Subscription required Existing
Truck (fuel / lube) ....................... Subscription required ....................... Subscription required Existing
Truck (haul) ....................... Subscription required ....................... Subscription required Existing
Truck (service) ....................... Subscription required Existing
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Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Nov 7, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 7, 2022
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Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2016

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
Press Release 2018
Technical Report 2018
Corporate Presentation 2017
Corporate Presentation 2017
Technical Report 2017
Corporate Presentation 2016
Corporate Presentation 2015
Management Discussion & Analysis 2015
Other 2015
Technical Report 2014
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