Overview
| Stage | Production |
| Mine Type | Open Pit |
| Commodities |
|
| Mining Method |
|
| Production Start | ...  |
| Mine Life | 2027 |
Yanacocha is South America's largest gold mine.
First copper production is expected from Yanacocha Sulfides in 2026. |
Source:
p. 1, 5
Yanacocha is owned by Minera Yanacocha S.R.L. (“Yanacocha” or “MYSRL”).
In 2022, Newmont Corp. completed the acquisition of the remaining interest in Minera Yanacocha S.R.L., including Buenaventura's 43.65% interest and Sumitomo Corporation's 5% interest.
Contractors
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Summary:
Yanacocha is an epithermal type deposit of high sulfidation hosted in volcanic rock formations. Gold is associated with ironoxides and pyrite.
The Yanacocha property consists of the following open pit mines: the La Quinua Complex, Cerro Yanacocha, the Carachugo Complex and Maqui Maqui.
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.
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 mines material from the Yanacocha Layback and Yanacocha Pinos, which has had limited mining operations in recent years and will finish mining operations in 2022.
The Carachugo leach pad processes oxide material from the Quecher Main project.
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 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|
Gold
|
koz
| ...... | ...... | ...... | 515 | 535 | 655 | 918 |
|
Silver
|
koz
| | ...... | ...... | ...... | ...... | ...... | |
All production numbers are expressed as metal in doré.
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Operational Metrics:
| Metrics | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|
Total tonnes mined
| ...... | ...... | 52,704 k tons | 53,242 k tons | 62,449 k tons | 90,326 k tons |
|
Ore tonnes mined
| ...... | ...... | 38,245 k tons | 29,862 k tons | 26,866 k tons | 31,897 k tons |
|
Waste
| ...... | ...... | 14,459 k tons | 23,380 k tons | 35,583 k tons | 58,429 k tons |
|
Tonnes processed
| ...... | ...... | 39,871 k tons | 31,436 k tons | 29,755 k tons | 36,476 k tons |
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Reserves at December 31, 2021:
Open Pit Reserves: Gold cut-off grades for oxide leach material not less than 0.07 gram per tonne and refractory mill material not less than 1.45 gram per tonne.
Underground reserves: Gold cut-off grades for oxide mill material not less than 2.10 gram per tonne and refractory mill material varies with level of copper and silver credits.
| Category | Tonnage | Commodity | Grade | Contained Metal |
|
Proven & Probable
|
178,578 kt
|
Gold
|
1.1 g/t
|
6,290 koz
|
|
Proven & Probable
|
192,405 kt
|
Silver
|
13.85 g/t
|
85,940 koz
|
|
Proven & Probable
|
112,366 kt
|
Copper
|
0.61 %
|
1,519 M lbs
|
|
Measured & Indicated
|
116,261 kt
|
Gold
|
0.64 g/t
|
2,376 koz
|
|
Measured & Indicated
|
99,318 kt
|
Silver
|
14.03 g/t
|
44,791 koz
|
|
Measured & Indicated
|
98,150 kt
|
Copper
|
0.38 %
|
818 M lbs
|
|
Inferred
|
192,016 kt
|
Gold
|
0.87 g/t
|
5,394 koz
|
|
Inferred
|
31,743 kt
|
Silver
|
15.9 g/t
|
16,222 koz
|
|
Inferred
|
40,117 kt
|
Copper
|
0.37 %
|
331 M lbs
|
Corporate Filings & Presentations:
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