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Peru
Caylloma Mine

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 Location:
66 km SE from Espinar, Peru

  Address:
Av. Jorge Chavez 154, piso 5, Miraflores
Lima
Peru
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Silver
  • Gold
  • Lead
  • Zinc
Mining Method
  • Cut & Fill
  • Mechanized Cut & Fill
  • Hydraulic backfill
Mine Life3 years (as of Jan 1, 2021)
Latest NewsFortuna reports 2022 full year record production of 401,878 gold equivalent ounces and issues 2023 annual guidance     January 17, 2023


Owners

Source: p. 14,15,52
CompanyInterestOwnership
Fortuna Silver Mines Inc. 100 % Indirect
Since June 2005, the Caylloma Property has been 100 percent owned by Minera Bateas S.A.C., a Peruvian subsidiary of Fortuna Silver Mines Inc.

Contractors

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Deposit Type

  • Epithermal
  • Vein / narrow vein


Summary:

The Caylloma polymetallic and silver-gold rich veins are characteristic of a typical low sulfidation epithermal deposit according to the classification of Corbett (2002) having formed in a relatively low temperature, shallow crustal environment. The epithermal veins in the Caylloma District are characterized by minerals such as pyrite, sphalerite, galena, chalcopyrite, marcasite, native gold, stibnite, argentopyrite, and various silver sulfosalts (tetrahedrite, polybasite, pyrargyrite, stephanite, stromeyerite, jalpite, miargyrite and bournonite). These are accompanied by gangue minerals such as quartz, rhodonite, rhodochrosite, johannsenite (Mn-pyroxene) and calcite.

Veins in the Caylloma District show structural patterns and controls typical of other vein systems hosted by Tertiary volcanic rocks in the western Peruvian Andean range. The Caylloma District vein system was developed as a set of dilatational structures as a consequence of tension generated during the main compressional event of the Andes. Veins are persistent along strike and dip. Locally, veins are displaced by post-mineral faulting along a north-northwest bearing. Horizontal displacement along these faults is minor and ranges from centimeters up to a few meters. No significant vertical displacement is observed on the structures. The vein system is not affected by any folding.

Three types of hydrothermal alteration have been identified at the Caylloma Mine: (1) quartz- adularia; (2) ........


Mining Methods

  • Cut & Fill
  • Mechanized Cut & Fill
  • Hydraulic backfill


Summary:

The mining method applied in the exploitation of the main vein (Animas) is overhand cut-and-fill using either mechanized, semi-mechanized or conventional extraction methods. All mining is undertaken by contractors in a southwest to northeast direction following the strike of the vein. Production capacity at the mine is 1,500 tpd. The following describes the cut-and-fill mechanized, semi-mechanized, and conventional extraction methods.

Mechanized cut-and-fill
Mechanized mining uses a jumbo drill rig and scoop tram for loading. The ore haulage is performed by trucks. Rock support is applied through rock bolts and shotcrete. The average mining width ranges between 3.5 m and 17 m. Mechanized mining is regarded as only being suitable for the Animas, Animas NE and their associated splays, as well as the Nancy vein based on the geological structure and geotechnical studies. Mechanized cut-and-fill comprises 93 % of mining planned in the LOM.

The mechanized mining sequence includes: drilling (with a jumbo drill rig), blasting, support, loading (with a scoop tram) and haulage.

Semi-mechanized cut-and-fill
Semi-mechanized mining is performed using handheld drilling equipment (jacklegs) and scoops for loading. Ore haulage is performed by truck. Rock support is supplied using rock bolts installed using manual drilling and installation techniques. Semi-mechanized mining is applied to narrow veins with average widths between 0.8 m and 2.0 m.
........


Crushing and Grinding
Source: Subscription required

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Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Production:

CommodityProductUnits2022202120202019201820172016
Silver Metal in concentrate koz  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required9119431,256
Gold Metal in concentrate koz  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Lead Metal in concentrate M lbs  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Zinc Metal in concentrate M lbs  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Silver Equivalent Payable metal oz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Lead Concentrate kt
Zinc Concentrate kt
^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202220212020201920182017
Tonnes milled  ......  Subscription required  ......  Subscription required  ......  Subscription required531,307 t534,773 t529,704 t
Daily milling rate  ......  Subscription required  ......  Subscription required  ......  Subscription required1,488 t1,502 t1,484 t
Daily mining capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required1,430 t of ore1,430 t of ore
Daily milling capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required1,500 t1,500 t1,500 t
^ Guidance / Forecast.
Subscription required - Subscription is required.

Reserves at December 31, 2021:
Mineral Reserves for the Caylloma Mine are reported above NSR breakeven cut-off values based on underground mining methods including; mechanized (breasting) at US$82.79/t; mechanized (uppers) at US$77.33/t; semi-mechanized at US$90.19/t; and a conventional method at US$155.1/t; using assumed metal prices of US$21/oz Ag, US$1,600/oz Au, US$2,000/t Pb and US$2,500/t Zn.

Mineral Resources are reported at an NSR cut-off grade of US$65/t for veins classified as wide (Animas, Animas NE, Nancy, San Cristobal veins) and US$135/t for veins classified as narrow (all other veins) based on the same parameters used for Mineral Reserves.

CategoryTonnage CommodityGradeContained Metal
Proven 234 kt Silver 101 g/t 0.8 M oz
Proven 234 kt Gold 0.3 g/t 2 koz
Proven 234 kt Lead 2.38 %
Proven 234 kt Zinc 2.96 %
Probable 2,933 kt Silver 83 g/t 7.8 M oz
Probable 2,933 kt Gold 0.19 g/t 18 koz
Probable 2,933 kt Lead 2.55 %
Probable 2,933 kt Zinc 3.76 %
Proven & Probable 3,167 kt Silver 84 g/t 8.6 M oz
Proven & Probable 3,167 kt Gold 0.2 g/t 20 koz
Proven & Probable 3,167 kt Lead 2.53 %
Proven & Probable 3,167 kt Zinc 3.7 %
Measured 724 kt Silver 97 g/t 2.3 M oz
Measured 724 kt Gold 0.34 g/t 8 koz
Measured 724 kt Lead 1.79 %
Measured 724 kt Zinc 3.24 %
Indicated 1,994 kt Silver 82 g/t 5.3 M oz
Indicated 1,994 kt Gold 0.24 g/t 15 koz
Indicated 1,994 kt Lead 1.61 %
Indicated 1,994 kt Zinc 3.09 %
Measured & Indicated 2,718 kt Silver 86 g/t 7.5 M oz
Measured & Indicated 2,718 kt Gold 0.26 g/t 23 koz
Measured & Indicated 2,718 kt Lead 1.65 %
Measured & Indicated 2,718 kt Zinc 3.13 %
Inferred 3,809 kt Silver 116 g/t 14.2 M oz
Inferred 3,809 kt Gold 0.59 g/t 73 koz
Inferred 3,809 kt Lead 2.03 %
Inferred 3,809 kt Zinc 3.5 %

Commodity Production Costs:

CommodityUnits2022202120202019201820172016
Total cash costs (sold) Silver Equivalent USD  ......  Subscription required
Total cash costs Silver Equivalent USD  ......  Subscription required  ......  Subscription required 7.64 / oz   7.73 / oz  
Total cash costs Silver USD -35.38 / oz†   -34.56 / oz†   -6.78 / oz†  
All-in sustaining costs (sold) Silver Equivalent USD  ......  Subscription required&nbs  ......  Subscription required
All-in sustaining costs (AISC) Silver Equivalent USD  ......  Subscription required  ......  Subscription required 11.7 / oz   11.2 / oz  
All-in sustaining costs (AISC) Silver USD -13.04 / oz†   4.34 / oz†  
All-in costs Silver Equivalent USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 11.7 / oz   11.2 / oz  
All-in costs Silver USD -13.04 / oz†   6.74 / oz†  
^ Guidance / Forecast.
† Net of By-Product.
Subscription required - Subscription is required.

Operating Costs:

Units2021202020192018201720162015
UG mining costs ($/t milled) USD 34.73841.341.440.435.3
Processing costs ($/t milled) USD  ......  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
Subscription required - Subscription is required.

Financials:

Units2022202120202019201820172016
Capital expenditures (planned) M USD  ......  Subscription required
Sustaining costs M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 14.7   9.6   7.6  
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 16.4   11.7   11.7  
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 89.1   88.1   67.1  
Operating Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 22.9   62.4   16.5  
Pre-tax Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 29.2   57.8   17.2  
After-tax Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 18.5   40.6   12.8  
EBITDA M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 37   39   25.2  
Subscription required - Subscription is required



Proposed Heavy Mobile Equipment as of March 8, 2019:
HME TypeModelSizeQuantity
Bolter ....................... Subscription required
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Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Mar 27, 2022
....................... Subscription required ....................... Subscription required Subscription required Mar 27, 2022
....................... Subscription required ....................... Subscription required Subscription required Mar 27, 2022
....................... Subscription required ....................... Subscription required Subscription required Mar 27, 2022
....................... Subscription required ....................... Subscription required Subscription required Mar 27, 2022
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
Press Release 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Management Discussion & Analysis 2018
Press Release 2018
Press Release 2018
Corporate Presentation 2017
Financial Review 2017
Management Discussion & Analysis 2017
Technical Report 2017
Form 40-F 2016
Management Discussion & Analysis 2016
Management Discussion & Analysis 2014
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News:

NewsDate
Fortuna reports 2022 full year record production of 401,878 gold equivalent ounces and issues 2023 annual guidance January 17, 2023

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