| Contractor | Contract | Description | Ref. Date | Source |
|
Empire Southwest
|
Equipment procurement or fabrication
|
Carlota has developed a strong relationship with the dealer, Empire Cat, who supplied the Cat 6015B.
|
Sep 30, 2023
|
|
Summary:
The Miami-Globe mining district in eastern Arizona is known for economically large-scale porphyry Cu, Au, and Mo deposits, such as the Miami-Inspiration and the Cu Resolution.
The area is built of igneous, metamorphic and sedimentary rocks of various ages from the early Proterozoic to the Tertiary.
The Carlota deposit is formed by the surface mineralization of copper oxides in the proterozoic Pinal Schist. Chrysocolla is a dominant ore mineral and usually occurs as coatings, crusts and filling in fractures and heavily desintegrated rock masses.
Reserves at December 31, 2014
| Category | Tonnage | Commodity | Grade | Contained Metal |
|
Measured
|
1,230 kt
|
Copper
|
0.53 %
|
6,521 t
|
|
Indicated
|
3,657 kt
|
Copper
|
0.42 %
|
15,358 t
|
|
Measured & Indicated
|
4,887 kt
|
Copper
|
0.45 %
|
21,879 t
|
|
Inferred
|
159 kt
|
Copper
|
0.47 %
|
751 t
|
Summary:
Copper ore extraction by the Carlota mine is by conventional methods typical for open-pit metals mines, i.e. the ore is mined by blasting and then is transported by haulage trucks.
In 2023, access work was commenced while in the Q4 2024, ore was mined from the Cactus open pit - Phase III, allowing the mine life to be extended to 2028.
Lower production by the Carlota mine in 2024 is due to the stripping carried out in the Cactus pit according to the adopted plan, to gain access to the new ore zone.
Heavy Mobile Equipment
| HME Type | Model |
|
Excavator
|
Caterpillar 6015B
|
|
Loader
|
Caterpillar 993K
|
|
Truck (haul)
|
Caterpillar 785
|
Comminution
Crushers and Mills
Milling equipment has not been reported.
Processing
- Sulfuric acid (reagent)
- Heap leach
- Solvent Extraction & Electrowinning
Summary:
Due to the nature of the oxide ore, it is processed using the heap leach, solvent-extraction and electrowinning method.
The excavated material is subjected to a heap leaching process using a sulphuric acid solution. The copper-enriched solution obtained after leaching is directed to the extraction (SX) and electrowinning (EW) nodes.
The end product is electrolytic copper in the form of cathodes.
Summary:
Carlota mine do not release water to the environment at all.
Engineering solutions ensure separation of contaminated water from clean water. Rainwater that has been in contact with the mine is captured and then used in technological processes.
Commodity Production
As of 2024, lower production by the Carlota mine according to the adopted plan.
| Commodity | Units | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 |
|
Copper
|
kt
| 2.6 | 3.9 | 4.1 | 5.4 | 5 | 4.4 | 3.2 |
All production numbers are expressed as cathode.
Production Costs
Commodity production costs have not been reported.
Mine Financials
| | Units | 2021 |
|
Revenue
|
M PLN
| 209 |
|
Pre-tax Income
|
M PLN
| 93 |
|
After-tax Income
|
M PLN
| 93 |
|
Operating Cash Flow
|
M PLN
| 11 |
Personnel
| Job Title | Name | Profile | Ref. Date |
|
Environmental Manager
|
Mauricio Acevedo Vidal
|
|
May 21, 2025
|
|
General Manager
|
Brock Johnston
|
|
May 21, 2025
|
|
Sr. General Manger / Head of Operations
|
John Haynes
|
|
May 21, 2025
|
|
Sr. Mine Engineer
|
Patricia Ann R.
|
|
May 26, 2025
|
| Employees | Year |
|
66
|
2024
|
|
62
|
2023
|
|
65
|
2022
|
|
66
|
2021
|
|
69
|
2020
|
|
64
|
2019
|
|
56
|
2018
|