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Peru
Yauli Operation (Andaychagua Mine, Carahuacra Mine, Carahuacra Norte Mine, San Cristobal Mine, Ticlio Mine)

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 Location:
27 km E from San Mateo, Peru

  Regional Office:
Av. Manuel Olguín 373, Santiago de Surco
Lima
Peru
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  • Overview
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  • Geology
  • Mining
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  • Costs & Financials
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  • Filings & News

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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Zinc
  • Lead
  • Copper
  • Silver
  • Gold
Mining Method
  • Cut & Fill
  • Overhand Cut & Fill
  • Underhand Cut & Fill
  • Sub-level stoping
  • Cemented backfill
  • Hydraulic backfill
Production Start...
Mine Life7 years (as of Jan 1, 2021)
The Yauli operating unit constists of four underground mines: San Cristóbal, Carahuacra, Andaychagua and Ticlio, whose extracted ore is treated in two concentrator plants, Victoria and Andaychagua, with an installed capacity of 8,650 tpd. The Mahr Tunnel Plant with a capacity of 2,750 tpd is in care & maintenance.


Owners

Source: p. 7
CompanyInterestOwnership
Glencore plc. 23.3 % Indirect
Volcan Compañía Minera S.A.A. is a subsidiary of Glencore AG, which is a subsidiary of Glencore Plc., a company domiciled in Switzerland, hereinafter the Parent, owner of 63% of common class A voting shares and an economic interest of 23%, excluding treasury shares. The Company and Subsidiaries engaged in the mining sector operate the mining units of Yauli, Animon, Alpamarca, Cerro and Oxidos in the departments of Cerro de Pasco, Junín and Lima.

Contractors

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Deposit Type

  • Vein / narrow vein
  • Manto
  • Porphyry
  • Epithermal
  • Skarn


Summary:

The Yauli unit region shows mineralization related to polymetallic epithermal systems, replacement bodies and polymetallic vein systems, as well as porphyry mineralization and skarns, thus indicating the great potential of the area.

There are two types of deposits in the San Cristobal district, veins and mantoso Veins are roughly perpendicular to the axis of the Chumpe Anticline and mantos are emplaced along the Mitu volcanic rocks-Paria limestone contact.

The San Cristobal Vein system is made up of two main mineral-bearing structures, the San Cristobal Main Vein and the Siberia 1 Vein, The Oyama-Triunfo Vein, which is located on the northeast limb of the anticline, appears to be an extension of the San Cristobal Main Vein, Both veins are separated on the surface by Chumpe lake and no underground workings exist below the area that permit a clear correlation.

The San Cristobal Main Vein extends all the way along the San Cristobal fault, considering the Oyama-Triunfo Vein as its extension. The Siberia 1 Vein is located in the axial zone of the anticline# At present the San Cristobal mine is working in the San Cristobal Main Vein.

The newly found Ticlio Cu-Au porphyry prospect is a single granodiorite intrusion showing a pronounced zonation pattern with respect to mineralization and alteration. Its central part is characterized by the occurrence of high density quartz-magnetite±K-feldspar stockwork. The zone rimming the core shows stro ........


Mining Methods

  • Cut & Fill
  • Overhand Cut & Fill
  • Underhand Cut & Fill
  • Sub-level stoping
  • Cemented backfill
  • Hydraulic backfill


Summary:

(Translated from Spanish by Google Translate)
Currently, four underground mines operate: San Cristóbal, Carahuacra, Andaychagua and Ticlio, whose extracted ore is treated in two concentrator plants, Victoria and Andaychagua, with an installed capacity of 8,650 tpd. The Mahr Tunnel Plant with a capacity of 2,750 tpd is in care & maintenance.

The main mining methods used are Sub-level Stoping and Over Cut and Fill, while the Under Cut and Fill and SARC methods are also applied in some areas.

San Cristobal Mine
There was a 1% increase in the Zn head grade. However, the law was reduced head of the other metals: 7% in Pb, 9% in Cu, 8% in Ag, due to the delays in the primary developments of 2020 as a consequence of covid-19, which caused the pits scheduled for 2021 had a lag in their exploitation, mainly in the Split 658 vein, the main contributor in volume and grade.

Ore production was 48% higher than in 2020, the results of production of fines in zinc, lead and silver were above in relation to 2020 in 53%, 38% and 36%, respectively.

Sub-level stoping is utilized as a primary mining method.

Exploration was directed towards the lateral areas of the Ramal Piso 722 veins, vein 658 and Split 658 vein at levels 820, 1320 and 1420, with favorable results.

Andaychagua Mine
There was an increase in the head grades of Zn in 20%, Pb in 21% and Cu in 23%, due to the planned contribution of the Salvadora minerali ........


Crushing and Grinding
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Processing

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Summary:

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Production:

CommodityProductUnits202120202019201820172016
Zinc Metal in concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required147146165
Zinc Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required289290319
Lead Metal in concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Lead Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Copper Metal in concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Copper Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Silver Metal in concentrate M oz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Gold Metal in concentrate koz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
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Operational Metrics:

Metrics202120202019201820172016
Ore tonnes mined  ......  Subscription required  ......  Subscription required3,199 kt3,201 kt3,563 kt3,623 kt
Tonnes processed  ......  Subscription required  ......  Subscription required3,170 kt3,212 kt3,585 kt3,657 kt
Daily processing capacity  ......  Subscription required  ......  Subscription required11,400 t11,400 t11,400 t11,400 t
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Reserves at December 31, 2021:

CategoryTonnage CommodityGradeContained Metal
Proven & Probable 16.5 Mt Zinc 5.4 % 887 kt
Proven & Probable 16.5 Mt Lead 0.9 % 153 kt
Proven & Probable 16.5 Mt Copper 0.1 % 24 kt
Proven & Probable 16.5 Mt Silver 2.9 oz/t 47 M oz
Total Resource 69.7 Mt Zinc 5.6 % 3,922 kt
Total Resource 69.7 Mt Lead 1 % 720 kt
Total Resource 69.7 Mt Copper 0.2 % 138 kt
Total Resource 69.7 Mt Silver 3.3 oz/t 230 M oz

Operating Costs:

Units2021202020192018201720162015
Combined mining costs ($/t milled) USD 43.344.438.239.438.937.236.1
Processing costs ($/t milled) USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Total operating costs ($/t milled) USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
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Financials:

Units202120202019201820172016
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 92.2   94.2   64.8  
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Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jul 7, 2022
....................... Subscription required ....................... Subscription required Subscription required Jul 11, 2022
....................... Subscription required ....................... Subscription required Subscription required Jul 7, 2022
....................... Subscription required ....................... Subscription required Subscription required Jul 7, 2022
....................... Subscription required ....................... Subscription required Subscription required Jul 11, 2022
....................... Subscription required ....................... Subscription required Subscription required Jul 7, 2022
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Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Management Discussion & Analysis 2018
Annual Report 2017
Management Discussion & Analysis 2017
Annual Report 2016
Management Discussion & Analysis 2016
Annual Report 2015
Management Discussion & Analysis 2014
Other 1970
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