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Mexico
San Julián Mine

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 Location:
166 km NE from Guamúchil, Chihuahua, Mexico
  Regional Office:
Calzada Legaria, No. 549, Torre 2 Colonia 10 de abril, Delegación Miguel Hidalgo
México
Mexico, Mexico
11250
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WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Financials
  • Personnel
  • Filings & News
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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Silver
  • Gold
  • Zinc
  • Lead
Mining Method
  • Backfill
Processing
  • Flotation
  • Leaching plant / circuit
  • Cyanide (reagent)
Mine Life3.6 years (as of Jan 1, 2020)

Owners

Source: p. 58,256
CompanyInterestOwnership
Fresnillo plc. 100 % Indirect
Deposit Type

  • Vein / narrow vein
  • Epithermal

Summary:

The San Julián project comprises a series of silver-gold veins as well as disseminated ore.

The new San Julian mine in construction displays a silver resource of 200 Moz in two different types of ore bodies: (i) typical low sulphidation epithermal veins and (ii) disseminated sulphides in subvolcanic and volcanic felsic rocks. Exploration strategy involved early recognition of Cienega-style characteristics providing confidence in the geologic model, and persistence when evaluating the non-typical disseminated mineralization.

Mining Methods

  • Backfill

Summary:

San Julián is an underground mine which develop ore veins and disseminated ore body.

There are three parallel sequence areas of disseminated ore body mined by 16 m x 25 m x 20 m (WxHxD) stopes units with subsequent backfill.

Crushing and Grinding

Processing

  • Flotation
  • Leaching plant / circuit
  • Cyanide (reagent)

Source: Subscription required

Summary:

The San Julián project includes construction of two plants:
1) a dynamic leaching plant to treat ore from the veins;
2) a flotation plant with 6,000 tpd capacity to process ore from the disseminated body.

Recoveries & Grades:

CommodityParameter20202019201820172016
Zinc Head Grade, %  ......  Subscription required  ......  Subscription required1.35
Zinc Concentrate Grade, %  ......  Subscription required  ......  Subscription required50.349.6
Lead Head Grade, %  ......  Subscription required  ......  Subscription required0.43
Lead Concentrate Grade, %  ......  Subscription required  ......  Subscription required45.441.7
Silver Head Grade, g/t  ......  Subscription required  ......  Subscription required172.5
Gold Head Grade, g/t  ......  Subscription required  ......  Subscription required2.47

Production:

CommodityProductUnits20202019201820172016
Silver Metal koz  ......  Subscription required  ......  Subscription required14,63010,5342,066
Gold Metal oz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Zinc Metal t  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Zinc Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Lead Metal t  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Lead Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Operational Metrics:

Metrics20202019201820172016
Tonnes milled  ......  Subscription required3,492 kt3,492 kt2,218 kt423 kt
Subscription required - Subscription is required.

Reserves at May 31, 2020:
Mineral reserve Cut-off is 196 g/t AgEq for San Julián Veins.
Mineral reserve Cut-off is 133 g/t AgEq for San Julián Disseminated.
Mineral resource Cut-off is 137 g/t AgEq for San Julián Veins.
Mineral resource Cut-off is 104 g/t AgEq for San Julián Disseminated.

CategoryOreTypeTonnage CommodityGradeContained Metal
Probable Veins 3,489 kt Silver 204 g/t 22,833 koz
Probable Disseminated 7,953 kt Silver 167 g/t 42,781 koz
Probable Veins 3,489 kt Gold 1.77 g/t 199 koz
Probable Disseminated 7,953 kt Gold 0.09 g/t 23 koz
Probable Disseminated 7,953 kt Zinc 1.14 % 91 kt
Probable Disseminated 7,953 kt Lead 0.46 % 36 kt
Measured & Indicated Veins 9,855 kt Silver 145 g/t 45,917 koz
Measured & Indicated Disseminated 14,984 kt Silver 158 g/t 76,300 koz
Measured & Indicated Veins 9,855 kt Gold 1.61 g/t 509 koz
Measured & Indicated Disseminated 14,984 kt Gold 0.09 g/t 44 koz
Measured & Indicated Disseminated 14,984 kt Zinc 1.28 % 192 kt
Measured & Indicated Disseminated 14,984 kt Lead 0.47 % 71 kt
Inferred Veins 12,384 kt Silver 162 g/t 64,322 koz
Inferred Disseminated 0.003 kt Silver 41 g/t 3 koz
Inferred Veins 12,384 kt Gold 1.27 g/t 507 koz
Inferred Disseminated 0.003 kt Gold 0.05 g/t
Inferred Disseminated 0.003 kt Zinc 1.62 %
Inferred Disseminated 0.003 kt Lead 0.22 %

Financials:

Units202120202019201820172016
Capital expenditures (planned) M USD  ......  Subscription required
Capital expenditures M USD  ......  Subscription required  ......  Subscription required83.1  79.1   134.1  
Revenue M USD  ......  Subscription required  ......  Subscription required366.5  287.2   67.4  
Gross profit M USD  ......  Subscription required  ......  Subscription required176.5  174.7   45.8  
Subscription required - Subscription is required

Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required May 17, 2021
....................... Subscription required ....................... Subscription required Subscription required May 17, 2021
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2020
Subscription required Subscription required Subscription required 2019
Subscription required Subscription required Subscription required 2018
Subscription required Subscription required Subscription required 2017

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2020
................................... Subscription required 2019
Annual Report 2018
Annual Report 2017
Other 2017
Annual Report 2016
Subscription required - Subscription is required.

Aerial view:

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