Overview
| Stage | Production |
| Mine Type | Open Pit |
| Commodities |
|
| Mining Method |
|
| Production Start | ...  |
| Mine Life | 2033 |
The Ity mine is one of Endeavour’s cornerstone assets.
Endeavour has accelerated the launch of the construction of a recyanidation circuit at the Ity mine as part of its optimisation initiatives. The additional circuit aims to optimise costs by reducing leaching and detox reagent consumption, improving the quality of the discharge water, and increasing production through higher recovery rates. The recyanidation process reduces cyanide consumption by capturing free cyanide from the plant tailings and recycling it back into the leach circuit while increasing recovery rates.
The recyanidation circuit is expected to be commissioned in mid-2023. |
Source:
p. 24
Endeavour Mining owns 85% of the Ity mine, except 90% owned Le Plaque deposit, with the Government of Cote d'Ivoire owning 10% and SODEMI (a government-owned mining company) owning the remaining 5%.
Contractors
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Summary:
The Ity gold district is located in a Lower Proterozoic – Birimian – domain (named the Ity-Touleupleu Klippe) wedged within the Archean Kenema-Man domain, that forms the southern half of the larger West African Craton. The Ity-Touleupleu Klippe forms a northeast-southwest-trending greenstone belt, approximately 100km long and up to 15km wide. This belt has been formed, deformed and metamorphosed during the Eburnean orogenic cycle.
The Birimian formations comprise meta-sedimentary series (pelites, gresopelites and carbonates) and meta-volcanosediments (ranging from basic to acidic in composition), intruded by a series of granodioritic and dioritic bodies. These formations have been subjected to greenschist to lower amphibolite facies regional metamorphism. Skarns are developed along the contact between carbonate formations and granodioritic intrusive rocks. A thick lateritic profile is developed above the bedrock.
Mineralization at Ity occurs in different geological settings, that can be grouped into at least two main types as identified today:
> Skarns-hosted mineralization, developed as lenses within meta-carbonates proximal to felsic and mafic intrusions.
> Shear zones-related mineralization, associated to moderately to steeply dipping structures impacting different lithologies including metasediments, volcanosediments, felsic volcanites (daaplite) and intrusive rocks (granodiorite and diorite).
Deposits discovered to date in the Ity gold district display either one or ........
Summary:
For CIL operations, the selected mining approach is conventional open pit excavator-truck operation with the production unit operations (drilling, blasting, loading, hauling and dumping) carried out by mining contractors. Contractor mining carried out by mining fleet which has capacity to move 25Mtpa. The mining fleet consists of larger capacity 90 t dump trucks and 120 t class backhoe excavators. The 40 t articulated dump trucks are utilized depending on pit and dump conditions, in particular, during the wet season. Ore and waste production rates are monitored, and material reconciliations are carried out continuously for the pit areas in production.
The production, drilling and blasting operations are carried out on 10 m benches. A quarter bench height (flitch) of 2.5 m is mined in ore to achieve a high degree of selectivity in loading and hauling operations. The highly weathered zone (clays and laterites) and transitional zone with a density below 2.0 t/m3 are amenable to free digging. Emulsion explosive is used in both wet and dry blasting for efficiency.
Various contracts were awarded following a competitive bidding process for parts of the mining operations, and prices are within the industry range and comparable to other operations in Côte d'Ivoire or West Africa. Endeavour contracts the supply of explosives and blasting accessories to an approved explosives supplier, who also provides product mixing equipment and technical blasting advice when ne ........
Source:
p.309-310
Source:
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Flow Sheet:
Summary:
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Production:
| Commodity | Units | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|
Gold
|
koz
| ...... ^ | ...... | ...... | ...... | ...... | 85 | 59 |
All production numbers are expressed as metal in doré.
^ Guidance / Forecast.
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Operational Metrics:
| Metrics | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|
Annual mining capacity
| ...... | | | | | |
|
Annual processing capacity
| ...... | ...... | 5 Mt | 5 Mt | | |
|
Stripping / waste ratio
| ...... | ...... | 1.74 | 1.45 | 2.58 | 3.71 |
|
Ore tonnes mined
| ...... | ...... | 8,571 kt | 5,733 kt | 1,127 kt | 1,410 kt |
|
Waste
| ...... | ...... | 14,898 kt | 8,320 kt | 2,901 kt | 5,237 kt |
|
Total tonnes mined
| ...... | ...... | 23,469 kt | 14,053 kt | 4,028 kt | 6,647 kt |
|
Tonnes processed
| ...... | ...... | 5.35 Mt | 3,693 kt | 1,307 kt | 1,194 kt |
|
Annual processing rate
| ...... | ...... | | | 950 kt | 950 kt |
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Reserves at December 31, 2022:
Cut-off grades for the resources are as follows: at 0.50g/t Au.
Cut-off grades for the reserves are as follows: oxide: 0.50g/t Au to 0.60g/t Au; transitional: 0.40g/t Au to 0.90g/t Au; fresh: 0.40g/t Au to 0.80g/t Au.
| Category | Tonnage | Commodity | Grade | Contained Metal |
|
Proven
|
11.4 Mt
|
Gold
|
0.82 g/t
|
300 koz
|
|
Probable
|
46.5 Mt
|
Gold
|
1.82 g/t
|
2,721 koz
|
|
Proven & Probable
|
57.9 Mt
|
Gold
|
1.62 g/t
|
3,021 koz
|
|
Measured
|
11.7 Mt
|
Gold
|
0.79 g/t
|
298 koz
|
|
Indicated
|
85.3 Mt
|
Gold
|
1.7 g/t
|
4,673 koz
|
|
Measured & Indicated
|
96.9 Mt
|
Gold
|
1.59 g/t
|
4,971 koz
|
|
Inferred
|
17.1 Mt
|
Gold
|
1.59 g/t
|
873 koz
|
Source:
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Corporate Filings & Presentations:
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