Overview
Stage | Production |
Mine Type | Open Pit |
Commodities |
|
Mining Method |
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Production Start | ... |
Mine Life | 2033 |
The Abujar Project is an open-pit mine, sources feed for the mill from two deposits, AG and APG. The processing plant comprises a conventional SAG milling circuit, gravity and carbon in leach processing.
Tietto commenced mining operations in October 2022 and poured first gold at the Abujar Gold Mine in January 2023, becoming its maiden operation. Tietto declared commercial production at Abujar in July 2023.
Since commencement, ore processed at Abujar has primarily been mined from the AG open pit. Mining in APG starts in 2026. A scoping study has been completed on the APG deposit considering heap leach which indicates potential upside. |
Latest News | Tietto Minerals: Takeover bid heats up for Aussie gold explorer April 15, 2024 |
Source:
p. 5
Company | Interest | Ownership |
Government of Côte d’Ivoire
|
10 %
|
Indirect
|
Tietto Minerals Ltd.
|
88 %
|
Indirect
|
Tietto (TIE) has an 88% interest in the Abujar Gold Project with its local partners having a two percent interest. The Government of Côte d’Ivoire is entitled to a free-carried 10% interest in the Project on commencement of mining.
On October 30th, 2023, Tietto Minerals was presented with an acquisition proposal by Zhaojin Capital (Hong Kong) Limited, which is a subsidiary of Zhaojin Mining Industry Company Limited. The offer was to purchase all of the shares in Tietto Minerals Limited.
Contractors
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Deposit Type
- Vein / narrow vein
- Mesothermal
Summary:
The Abujar Deposit is located within a NNE-SSW orientated body of granitoid migmatite and is hosted within in an interpreted regional shear structure. This is then enclosed within two mica granite bodies of similar interpreted orientation which are regionally referred to as granodiorites. The lithologies of Proterozoic age which are present inside the Project include:
- Migmatitic granitoids (Eburnean) associated with syntectonic granites; they can belong to either the metamorphic or the magmatic domain depending on the intensity of melting. They occur in the central portion of the property;
- Metamorphosed rhyolite (Eburnean) of pyroclastic origin. They occur as relics within two mica granites and consist mainly of quartz phenocrysts inside glass. They are found as light coloured banks showing mainly muscovite corresponding most probably to pyroclastic rhyolitic flows;
Schists are divided into two groups:
- Argillic schist: are always weathered with mottled texture and crosscut by quartz veins; and
- Two-mica (+ staurolite and andalusite) schist: - consist of biotite and muscovite with minor andalusite, which is a common mineral of contact metamorphism. This rock occurs at the contact with two-mica granite bodies in the central area of the property.
Two styles of deformation are interpreted to be present within the drill cores at Abujar; these include both ductile deformation and brittle deformation. The gold mineralisation is interp ........
Summary:
The Project sources feed for the mill from two deposits, AG and APG. The AG deposit provides the majority of value to the operation and the AG Open Pit comprises several open pits, all within 1km to 2km of the plant site and a number of satellite pits located along strike to the north and south.
The mining method for the extraction of ore is to be selective open cut mining, utilising hydraulic excavators and trucks. A mining bench height of 10 metres is used, with loading on 2.5 metres flitches to minimise ore loss and dilution.
Since commencement, ore processed at Abujar has primarily been mined from the AG open pit. Mining has focused on AG Main stages 1, 2 and 3 with some contributions from AG South stage 1 pit. AG Main open pit stage 4 and stage 5 cutbacks are due to be completed in 2024 and 2025 respectively, whereafter mining will move on to AG South cutback pits. Mining in APG starts in 2026. The APG open pit is approximately 9km from the processing plant, the current LOMP assumes ore to be transported from APG to the existing Abujar processing plant. Waste is taken to primary large waste dumps located to the west, East and South of the AG Main Pit, as well as to several supplementary waste dumping locations across the Abujar lease.
Vertical mining advance has been capped based at 60m per annum based on operating experience and minimum mining width for a “good-bye” cut is approximately 30m.
In August 2023, Tietto reported tha ........
Source:
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Flow Sheet:
Summary:
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Source:
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Production:
Commodity | Units | 2023 | Avg. Annual (Projected) | LOM (Projected) |
Gold
|
koz
| ...... ^ | 170 | 1,530 |
All production numbers are expressed as metal in doré.
^ Guidance / Forecast.
Operational Metrics:
Metrics | 2023 |
Annual processing capacity
| ...... |
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Reserves at June 30, 2023:
Ore Reserves: Marginal cut-off grades for AG: Oxide 0.29 g/t Au, Transition 0.30 g/t Au and Fresh 0.31 g/t Au. Marginal cut-off grades for APG: Oxide 0.31 g/t Au, Transition 0.32 g/t Au and Fresh 0.34 g/t Au (as greater haulage distance to AG ROM pad).
Mineral Resources as at 31st March 2023 Reported at 0.25 g/t Au cut off within pit shells; and 1.1 g/t Au cut off below the pit shells for AG; and 0.3 g/t Au cut off within pit shells, and 1.1 g/t Au cut off below the pit shells.
Mineral Resources are reported inclusive of Mineral Reserves.
Category | Tonnage | Commodity | Grade | Contained Metal |
Proven
|
12.1 Mt
|
Gold
|
1.12 g/t
|
0.43 M oz
|
Probable
|
24.6 Mt
|
Gold
|
1.17 g/t
|
0.92 M oz
|
Proven & Probable
|
36.7 Mt
|
Gold
|
1.15 g/t
|
1.36 M oz
|
Measured
|
39 Mt
|
Gold
|
1.2 g/t
|
1.45 M oz
|
Indicated
|
12.3 Mt
|
Gold
|
1.2 g/t
|
0.49 M oz
|
Measured & Indicated
|
50.9 Mt
|
Gold
|
1.2 g/t
|
1.94 M oz
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Inferred
|
73 Mt
|
Gold
|
0.8 g/t
|
1.9 M oz
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Total Resource
|
124 Mt
|
Gold
|
1 g/t
|
3.83 M oz
|
Commodity Production Costs:
| Commodity | Units | 2023 |
All-in sustaining costs (AISC)
|
Gold
|
USD
|
......
|
^ Guidance / Forecast.
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HME Type | Model | Size | Quantity | Status | Leased or Contractor | Ref. Date | Source |
Backhoe
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110 t
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.......................
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Required
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Oct 5, 2021
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p.70
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Required
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Oct 5, 2021
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p.70
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Required
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Oct 5, 2021
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p.148
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Required
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Oct 5, 2021
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p.71
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Excavator
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.......................
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Existing
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Jan 8, 2024
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Required
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Oct 5, 2021
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p.148
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Required
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Oct 5, 2021
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p.71
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Required
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Oct 5, 2021
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p.148
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.......................
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.......................
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Required
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Oct 5, 2021
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p.148
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.......................
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.......................
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.......................
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Required
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Oct 5, 2021
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p.148
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.......................
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.......................
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Required
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Oct 5, 2021
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p.70
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- Subscription is required.
Corporate Filings & Presentations:
Document | Year |
...................................
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2024
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...................................
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2023
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...................................
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2023
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...................................
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2023
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...................................
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2022
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Feasibility Study Report
|
2021
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Press Release
|
2021
|
- Subscription is required.
News:
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