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Cote d'Ivoire

Sissingué Mine

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Australia

Sissingué Mine

Location: 31 km NE from Bolona, Cote d'Ivoire

Regional Office:

II Plateaux – Vallons Rue J75/J44 Lot 1438 ilot 145 06 BP 1958
Abidjan
Cote d'Ivoire
06

Contacts:

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Overview

Mine TypeOpen Pit
StatusActive
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Production Start... Lock
Mine Life... Lock
SnapshotPerseus Mining have successfully integrated ore from satellite deposits at Fimbiasso and Bagoé into Sissingué operation, which has effectively prolonged its lifespan until at least March 2026.

Perseus completed construction of infrastructure required to support mining ore from the satellite Fimbiasso East and West pits in the first half of FY23. Mining commenced at Fimbiasso East following this. The first ore from the Fimbiasso pits was transported to the Sissingué mill for processing in late March 2023.

Work to obtain an Exploitation Permit (“EP”) covering the Bagoé exploration permit area continued in FY23. Perseus has lodged all documentation required for assessment of its application for an EP for the Bagoé Project with the Ivorian Department of Mines, Petroleum and Energy and it is currently being assessed.

Owners

SourceSource
CompanyInterestOwnership
Société Minière de Côte d'Ivoire SARL 4 % Indirect
Government of Côte d’Ivoire 10 % Indirect
Perseus Mining Ltd. 86 % Indirect
Perseus Mining Côte d’Ivoire S.A. (operator) 100 % Direct
Perseus owns an 86% interest in Sissingué, with a 10% free carried interest held by the Ivorian government and 4% owned by local interests.

Perseus owns a 86% interest in Perseus Mining Côte d’Ivoire SA, owner of Sissingué Gold Mine.

Contractors

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SourceSource

Deposit type

  • Orogenic
  • Vein / narrow vein

Summary:

Gold deposits at Sissingué are orogenic, greenstone hosted.

The Sissingué Gold Mine main pit mineralisation is structurally controlled and mainly hosted within a granitic stock associated with a network of quartz-carbonate veins and veinlets with associated pyrite and arsenopyrite dissemination. Gold-bearing veins have a dominant NNW to NS trend and are steeply dipping. Disseminated mineralisation is also located in the alternation envelops of the mineralised quartz veins.

Additional mineralisation is seen within interconnecting mineralised felsic dyke complexes that propagate from the main granite stock. These mineralised felsic dyke complexes, also trending NNW, host the mineralisation for the additional pits in the area, namely Binkadi, Bagoé, Western Arm and Boribana.

The Sissingué Deposit occurs in a strongly deformed Birimian greenstone belt intruded by quartz-feldspar felsic dykes and granitoid bodies. Gold mineralisation at Sissingué is associated with the felsic dykes and small granitoid (tonalite) bodies that cross-cut sedimentary rocks. Subsequent hydrothermal activities and metasomatism of the granitoids has led to a sericite-carbonate alteration within the intrusive and the more permeable horizons (sandstones and conglomerates) of the sedimentary rocks, and a low to moderate grade disseminated gold mineralisation. Late-stage high grade Au-As-quartz-carbonate veins exploited the altered and brittle portions of the intrusive and sediments with common occurrences of visible gold.

The gold Mineralisation was domained by its host lithology for modelling (granite, felsic dykes and sediments). Within the dyke domains, mineralised sediments in the alteration halo of the dykes were included to maintain a minimum width of the wireframes and to maintain continuity along strike. Where geological contacts were not clearly controlling the distribution of mineralisation, a grade cut-off of 0.3 g/t Au was used to construct Mineral Resource boundaries and to provide overall geometry to mineralised zones. A minimum of 2 m width was used for the wireframes and samples of grades below the nominal cut-off of 0.3 g/t Au were included where the wireframe would otherwise be less than 2 m wide. Analysis of the global grade distribution shows that there is a natural change in grade population at around 0.3 g/t Au.

The domains trend grid north, extend over 2,500 metres strike and dip steeply to the west and east with horizontal widths varying between 5 to 30 metres for the dyke associated domains and up to 180 metres in width for the granite domains. Domains are interpreted to a maximum vertical depth of 300 metres.

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

CommodityUnits202320222021202020192018
Gold oz  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe79,85335,425
All production numbers are expressed as metal in doré.

Operational metrics

Metrics202320222021202020192018
Annual processing capacity  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe
Stripping / waste ratio  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe2.6 2.2
Ore tonnes mined  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe1,651 kt1,019 kt
Total tonnes mined  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe6,586 kt3,541 kt
Tonnes milled  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe1,530 kt678 kt

Production Costs

CommodityUnits202320222021202020192018
Cash costs Gold USD  ....  Subscribe  ....  Subscribe  ....  Subscribe
Total cash costs Gold USD  ....  Subscribe  ....  Subscribe  ....  Subscribe
All-in sustaining costs (AISC) Gold USD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 746 / oz   520 / oz  

Operating Costs

Currency202320222021202020192018
OP mining costs ($/t mined) USD 4.05  5.58  6  3.92  3.74  3.88  
Processing costs ($/t milled) USD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe

Financials

Units202320222021202020192018
Revenue M AUD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 155.3   24.2  
Pre-tax Income M AUD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 11.1   -23.3  
After-tax Income M AUD  ....  Subscribe  ....  Subscribe  ....  Subscribe

Heavy Mobile Equipment

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Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Nov 27, 2023
....................... Subscription required ....................... Subscription required Subscription required Nov 26, 2023
....................... Subscription required ....................... Subscription required Subscription required Nov 26, 2023
....................... Subscription required ....................... Subscription required Subscription required Nov 27, 2023
....................... Subscription required ....................... Subscription required Subscription required Nov 26, 2023

EmployeesTotal WorkforceYear
...... Subscription required ...... Subscription required 2020
...... Subscription required 2019

Aerial view:

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