Guinea

Kouroussa Mine

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Categories

Overview

Mine TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Production Start... Lock
Mine Life... Lock
ShapshotCommissioning at Kouroussa commenced early May 2023.

On 17 March, 2024, by formal notice to Hummingbird Resources PLC, Corica elected to suspend all works under contract at Kouroussa due to the Company's substantial breaches under the Contract.

As of April 16, 2024, Hummingbird Resources plc entered a short-term contract with the West African contractor ETASI, to enhance their already active support fleet and accelerate mining activity at Kouroussa.

Hummingbird is in discussions with additional operators and contractors, alongside the ongoing discussions with Corica, to maximise the full range of mining activities required to reach full commercial production as soon as possible.

Owners

SourceSource
CompanyInterestOwnership
Government of Guinea 15 % Indirect
Hummingbird Resources plc 85 % Indirect
Hummingbird Resources plc acquired the Kouroussa gold mine in September 2020. Now Hummingbird Resources plc owns 85% of the project. The Government of Guinea is expected to hold up to a 35% interest under the relevant mining code (15% free carry and 20% right to purchase).

Contractors

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Deposit type

  • Vein / narrow vein
  • Breccia pipe / Stockwork

Summary:

The Republic of Guinea is located in the southern part of the West African craton. Guinea has a rich and varied mining potential with reserves estimated of several billion tonnes of bauxite and iron ore, plus gold, diamonds, and base metals. The gold ore occurs as secondary (alluvium beds and terraces of rivers) or primary (veins, quartz veins) deposits. The major gold deposits are located in the Birimian Domain in Upper Guinea, and current annual production is about 8 to 10 tons of gold, divided between small-scale miners and industrial companies. The four main known gold metallogenic areas of Guinea include (i) the Siguiri Basin of Upper Guinea (Kankan, Siguiri, Kouroussa, Mandiana) and Dinguiraye; there are lateritic and/or saprolitic deposits or indications of gold-bearing quartz veins and stockworks; (ii) the Siguiri Basin of savanna Guinea (Kankan, Siguiri, Kouroussa, Mandiana); (iii) the Kouroufing (Mamou and Kerouané) and Beyla areas located in the southeast also have auriferous quartz veins; and (iv) primary deposits of N’Zérékoré sheet NZE-Q2 (Au), coordinates 8° 12’ to 8° 08’ W longitude and 7° 40’ N latitude (Kogota-Guipo), hosted in amphibolite gneisses; Au and Ag of 1.25 to 2.1 g/t and 3.45 to 41.3 g/t, respectively. The primary deposit NZE-zone Q3 (Au) has coordinates 8° 26’59’’ longitude W and 7° 37’30’’ latitude N; the orebody is characterized by tuffites with hematite. These lithologies are located in Lower Proterozoic and Archean domains. In these areas, there are faults observed and/or interpreted, as well as kimberlite veins and pipes. The genesis of these gold deposits remains poorly understood compared to others in the West African region. Future research work on these deposits should be oriented on the model, type, and genesis (tectonic setting, host environment, texture and mineralogy of ore, age of host rocks and ore, source and composition of ore-forming fluids, hydrothermal alteration and zoning, structural setting, etc.) to assist their interpretation. The regional geology and metallogeny of gold resources in Guinea will be discussed, including the challenges to better understand these gold-bearing resources.

Reserves

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Mining Methods

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Comminution

Crushers and Mills

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Processing

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Production

CommodityUnitsAvg. Annual (Projected)
Gold oz 100,000
All production numbers are expressed as metal in doré.

Production Costs

Commodity production costs have not been reported.

Heavy Mobile Equipment

Fleet data has not been reported.

Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 16, 2023
....................... Subscription required ....................... Subscription required Subscription required Oct 16, 2023
....................... Subscription required ....................... Subscription required Subscription required Oct 16, 2023

Aerial view:

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