Overview
| Stage | Production |
| Mine Type | Open Pit |
| Commodities |
|
| Mining Method |
|
| Production Start | ...  |
| Mine Life | 2027 |
Yanacocha is one of the South America's largest gold mine.
The Yanacocha Complex mined material from the Yanacocha Layback and Yanacocha Pinos, which has had limited mining operations in recent years, finished mining operations in 2022. The Maqui Maqui operations mined material from multiple mines that are no longer in operation. The Yanacocha Gold Mill ceased current operations in February 2021 and has been placed into care and maintenance. It will be repurposed for use as part of the Yanacocha Sulfides project. The Carachugo leach pad processes oxide material from Quecher Main. |
| Latest News | Normet concrete sprayer, mixer set for Newmont’s Yanacocha Sulfides project April 28, 2023 |
Source:
p. 42
Yanacocha is owned by Minera Yanacocha S.R.L. (“Yanacocha” or “MYSRL”).
In 2022, Newmont Corp., completed the acquisition of Compañia de Minas Buenaventura S.A.A.'s 43.65% non-controlling interest and Summit Global Management II VB's, a subsidiary of Sumitomo, 5% non-controlling interest in Yanacocha. At December 31, 2022, Newmont holds 100% ownership interest in Yanacocha
Contractors
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Deposit Type
- Epithermal
- Volcanic hosted
Summary:
Yanacocha is an epithermal type deposit of high sulfidation hosted in volcanic rock formations. Gold is associated with ironoxides and pyrite.
The Yanacocha gold district is a 10x4km zone of altered rocks within a belt of tertiary volcanics that extends the whole length of Peru. Andesitic domes and dome complexes have been silicified and leached by epithermal gold-bearing solutions in at least nine distinct deposits. The mineralised sequences, which can also contain significant amounts of silver, are flanked by extensive argillitic alteration, and subsequent events have created siliceous breccia pipes with localised high gold grades.
Summary:
The Yanacocha property began production in 1993 and consists of the following open pit mines: the La Quinua Complex, the Yanacocha Complex, the Carachugo Complex and Maqui Maqui.
The La Quinua Complex mined material from the La Quinua Sur and the Tapado Oeste Layback and finished mining operations in 2021.
The Yanacocha Complex mined material from the Yanacocha Layback and Yanacocha Pinos, which has had limited mining operations in recent years, finished mining operations in 2022.
The Maqui Maqui operations mined material from multiple mines that are no longer in operation.
The Carachugo leach pad processes oxide material from Quecher Main.
Yanacocha’s available mining fleet consists of two shovels, four excavators, one loader and 31 haul trucks, each with 233-tonne payload.
Source:
Summary:
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Production:
| Commodity | Units | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|
Gold
|
koz
| ...... ^ | ...... | ...... | ...... | ...... | 515 | 535 |
|
Silver
|
koz
| | | | ...... | ...... | ...... | ...... |
All production numbers are expressed as metal in doré.
^ Guidance / Forecast.
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Operational Metrics:
| Metrics | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|
Total tonnes mined
| ...... | ...... | ...... | 52,704 k tons | 53,242 k tons | 62,449 k tons |
|
Ore tonnes mined
| ...... | ...... | ...... | 38,245 k tons | 29,862 k tons | 26,866 k tons |
|
Waste
| ...... | ...... | ...... | 14,459 k tons | 23,380 k tons | 35,583 k tons |
|
Tonnes processed
| ...... | ...... | ...... | 39,871 k tons | 31,436 k tons | 29,755 k tons |
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Reserves at December 31, 2022:
Open Pit Reserves: Gold cut-off grades for oxide leach material not less than 0.12 gram per tonne and refractory mill material not less than 1.26 gram per tonne.
Underground reserves: Gold cut-off grades for oxide mill material not less than 2.63 gram per tonne and refractory mill material varies with level of copper and silver credits.
| Category | Tonnage | Commodity | Grade | Contained Metal |
|
Proven & Probable
|
158,800 kt
|
Gold
|
1.13 g/t
|
5,780 koz
|
|
Proven & Probable
|
189,800 kt
|
Silver
|
14.22 g/t
|
86,770 koz
|
|
Proven & Probable
|
111,100 kt
|
Copper
|
0.63 %
|
1,530 M lbs
|
|
Measured & Indicated
|
135,100 kt
|
Gold
|
0.63 g/t
|
2,740 koz
|
|
Measured & Indicated
|
127,200 kt
|
Silver
|
11.56 g/t
|
47,290 koz
|
|
Measured & Indicated
|
101,300 kt
|
Copper
|
0.37 %
|
830 M lbs
|
|
Inferred
|
193,100 kt
|
Gold
|
0.87 g/t
|
5,380 koz
|
|
Inferred
|
33,000 kt
|
Silver
|
15.38 g/t
|
16,310 koz
|
|
Inferred
|
39,700 kt
|
Copper
|
0.37 %
|
320 M lbs
|
Mine Management:
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