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Burkina Faso
Bouly Mine (Bissa-Bouly Operation)

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 Location:
87 km N from Ouagadougou, Burkina Faso

  Regional Office:
11 BP 1229 CMS OUAGA 11 783 Rue de la Chambre de Commerce
15 618 commune de Ouagadougou Ouaga 2000
Ouagadougou
Burkina Faso
Phone  ...  Subscription required
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Financials
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Processing
  • Heap leach
  • Cyanide (reagent)
Mine Life10 years (as of Jan 1, 2020)


Owners

Source: p. 129, 130
CompanyInterestOwnership
Nord Gold N.V. 90 % Indirect
Bissa Gold SA, which owns the Bouly mine, is 90% owned by Nordgold through High River Gold Mines Ltd. and 10% state owned (under law).

Deposit Type

  • Porphyry
  • Vein / narrow vein


Summary:

Bouly, which lies to the southeast of Bissa, appears to represent a large, low grade goldcopper porphyry.

The bedrock comprises massive non-foliated porphyritic mafic metavolcanics, brecciated by younger porphyritic intrusive dykes and gold is associated with quartz-pyrite-chalcopyrite veinlets with potassic alteration along the vein walls.


Mining Methods

  • Truck & Shovel / Loader


Summary:

Bouly is a single open pit operation.It will benefit from the low cost mining operations due to an excellent average LOM stripping ratio of 0.7 t/t.


Crushing and Grinding


Processing

  • Heap leach
  • Cyanide (reagent)

Source: Subscription required

Summary:

The Bouly deposit represents a large, low-grade gold mineralisation, favourable for heap leach treatment. Bouly is a single open pit operation. The ore is crushed with primary jaw and secondary cone crushers, followed by agglomeration before stacking on HDPE lined pad for irrigation with sodium cyanide leach solution. Bouly utilises mining equipment and jaw crushers similar to that of Bissa, to standardise stock holding and optimise maintenance costs.

Bouly has its own all-season heap leach facilities with final processing stages, including desorption, electro-winning and smelting taking place at the Bissa’s processing plant.

Recoveries & Grades:

CommodityParameter2016
Gold Recovery Rate, %  ......  Subscription required
Gold Head Grade, g/t 0.57
Subscription required - Subscription is required.

Production:

CommodityUnits2019201820172016
Gold koz  ......  Subscription required  ......  Subscription required12428
All production numbers are expressed as metal in doré.
Subscription required - Subscription is required.

Operational Metrics:

Metrics2016
Ore tonnes mined 3,518 kt
Stripping / waste ratio 1.46
Tonnes processed 3,292 kt of ore

Reserves at December 31, 2017:

CategoryOreTypeTonnage CommodityGradeContained Metal
Proven In-Situ (OP) 10,974 kt Gold 0.51 g/t 180 koz
Probable In-Situ (OP) 90,405 kt Gold 0.52 g/t 1,516 koz
Proven & Probable In-Situ (OP) 101,379 kt Gold 0.52 g/t 1,696 koz
Measured In-Situ (OP) 9,940 kt Gold 0.57 g/t 182 koz
Indicated In-Situ (OP) 196,999 kt Gold 0.55 g/t 3,471 koz
Measured & Indicated In-Situ (OP) 206,940 kt Gold 0.55 g/t 3,653 koz
Inferred In-Situ (OP) 58,359 kt Gold 0.59 g/t 1,109 koz
Total Resource In-Situ (OP) 265,299 kt Gold 0.56 g/t 4,762 koz

Financials:

Units2016
Revenue M USD  ......  Subscription required


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required May 18, 2020
....................... Subscription required ....................... Subscription required Subscription required Apr 28, 2020
....................... Subscription required ....................... Subscription required Subscription required May 18, 2020
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2018
................................... Subscription required 2018
Annual Report 2017
Press Release 2017
Integrated Report 2016
Subscription required - Subscription is required.

Aerial view:

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