Overview
Stage | Construction |
Mine Type | Open Pit |
Commodities |
|
Mining Method |
|
Mine Life | 10 years (as of Jan 1, 2021) |
In 2022, Largo Inc. will start a series of expansions of the vanadium plant and implementation of new processing plants for Ilmenite and pigment generation. These expansions and implementation will extend to 2032 as described below: -Phase 1: Ilmenite Concentration Plant 150 kt/y + TiO2 Pigment Processing Plant 30kt/year. Construction period is scheduled for 2022-2023; -Phase 2: TiO2 Pigment Processing Plant + Vanadium Trioxide Plant Expansions (2024- 2025); -Phase 3: TiO2 Pigment Processing + Ilmenite Concentration Plant Expansions (2026- 2028) + Site preparation for GAN and NAN (roads/access and pre-stripping); -Phase 4: V2O5 Expansion Second Kiln (2029-2032) with start of mining operations at GAN and NAN.
The Life-of-mine (LOM) comprises of 20 years of operation, starting with Campbell Pit until 2032, where GAN and NAN Deposits start mining, with both lasting until 2041.
The Largo Inc. completed the construction of its ilmenite plant in Q3 2023. |
Source:
p. 10,26
Maracas Menchen Expansion (as a part of Maracas Menchen operation) is owned 100% by Largo Vanádio S.A., which is controlled 99.94% directly and indirectly by Largo. The remaining shares of Largo Vanádio S.A. are owned by Companhia Baiana de Pesquisa Mineral, an entity controlled by the Brazilian State of Bahia.
Contractors
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Deposit Type
- Magmatic
- Intrusion related
Summary:
The Maracás Project is Vanadiferous Titano-Magnetite (VTM) deposit.
The NNE-striking, ~70° ESE-dipping Paleoproterozoic Rio Jacaré Intrusion occurs throughout the 40 km long Maracás Project exploration permits. Along the strike of the Rio Jacaré Intrusion within the property, several discrete deposits or areas containing vanadium-rich titanomagnetite bodies have been defined, namely the Gulçari A (Campbell) deposit, the Gulçari A North (GAN) deposit, Gulçari B deposit (currently part of GAN), the Sao Jose deposit (SJO), the Novo Amparo (NAO) deposit and the Novo Amparo North (NAN) deposit. Each of these deposits are located at various stratigraphic heights within the Rio Jacaré Intrusion, and thus occur within different cyclic units.
The Gulçari A deposit (also referred to Campbell Pit) is hosted in the lower parts of the Upper Zone of the Rio Jacaré Intrusion, between cyclic units C1 and C6, with magnetite mineralization hosted predominantly within the C3 unit. This C3 unit comprises medium to coarse-grained gabbro containing lenses of magnetitite, magnetite-pyroxenite and pyroxenite. These lenses are interpreted to pinch out along strike (i.e. in a N-S direction), and it is within this C3 unit that the largest concentrations of vanadium-rich magnetite known on the property are found (Brito, 1984). This magnetite deposit extends for approximately 350 m along strike, is up to 150 m wide and has been intersected in drilling to vertical depths of at least 300 m, ........
Summary:
The Maracás Menchen operation consists of the currently operating Maracás Menchen Mine (Campbell Pit) and includes two the most advanced and explored GAN and NAN deposits.
Leading up to the depletion of the Campbell Pit, the Company is planning on executing the overall LOM plan and will initiate mining at the GAN and NAN deposits commencing in 2032. The LOM plan anticipates that GAN and NAN will extend the mine life of the overall operation by an additional 10 years, with all current deposits being depleted in 2041.
Mining will be conducted using conventional open pit methods (drill-blast-load-haul), by third-party contractor. The mine plan adopted a 5% dilution for GAN and NAN Deposits, with 95% mining recovery.
Novo Amparo Norte (NAN) will be mined by open pit methods and will occupy an estimated area of 240.0 ha. The pit is expected to reach a depth of 170.0 meters below surface. Service roads will be established that will serve as access for people, equipment, vehicles, and production flow to the main mine complex. The main road that will connect the NAN mine to the main mine complex will also be built considering the GAN deposit and its location within the overall project. This road is expected to extend for 6.5 km from the main mine complex and will occupying 36 ha.
Gulçari A Norte will be mined by open pit methods and will occupy an estimated area of 333.0 ha and reach a vertical depth of 210.0 m below surface. Service ro ........
Source:
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Flow Sheet:
Summary:
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Source:
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Projected Production:
Commodity | Units | Avg. Annual |
V2O5
|
kt
| 15,610 |
All production numbers are expressed as flake & powder.
Operational Metrics:
Metrics | |
Annual ore mining rate
| ...... |
Annual production capacity
| ...... |
* According to 2021 study.
Reserves at October 10, 2021:
A cut-off grade of 0.3% V2O5 head is applied in V2O5 Mineral Resource.
Mineral Resources and Reserves are given for GAN and NAN Deposits. Mining at the GAN and NAN deposits commencing in 2032.
Mineral Resources are reported inclusive of Mineral Reserves.
Category | Tonnage | Commodity | Grade | Contained Metal |
Proven & Probable
|
42.51 Mt
|
Titanium dioxide
|
7.77 %
|
3,304,858 t
|
Proven & Probable
|
42.51 Mt
|
V2O5
|
0.47 %
|
198,763 t
|
Measured & Indicated
|
44.26 Mt
|
Titanium dioxide
|
8.32 %
|
3,681 kt
|
Measured & Indicated
|
44.26 Mt
|
V2O5
|
0.62 %
|
276.2 kt
|
Inferred
|
10.42 Mt
|
Titanium dioxide
|
8.03 %
|
837 kt
|
Inferred
|
10.42 Mt
|
V2O5
|
0.66 %
|
68.5 kt
|
Operating Costs:
| Units | 2021 |
OP mining costs ($/t mined)
|
USD
| 1.68 * |
* According to 2021 study.
Corporate Filings & Presentations:
Document | Year |
...................................
|
2023
|
...................................
|
2023
|
...................................
|
2022
|
Mine Operations Plan
|
2021
|
Press Release
|
2021
|
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