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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
Phone  ...  Subscription required
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 Life4.4 years (as of Jan 1, 2021)

Owners

Source: p. 50,278
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:

CommodityParameter202120202019201820172016
Zinc Head Grade,  ......  Subscription required  ......  Subscription required  ......  Subscription required1.35
Zinc Concentrate Grade, %  ......  Subscription required  ......  Subscription required  ......  Subscription required50.349.6
Lead Head Grade, %  ......  Subscription required  ......  Subscription required  ......  Subscription required0.43
Lead Concentrate Grade, %  ......  Subscription required  ......  Subscription required  ......  Subscription required45.441.7
Silver Head Grade, g/t  ......  Subscription required  ......  Subscription required  ......  Subscription required172.5
Gold Head Grade, g/t  ......  Subscription required  ......  Subscription required  ......  Subscription required2.47

Production:

CommodityProductUnits202120202019201820172016
Silver Metal koz  ......  Subscription required  ......  Subscription required  ......  Subscription required14,63010,5342,066
Gold Metal oz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Zinc Metal t  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Zinc Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Lead Metal t  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Lead Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Silver Equivalent Metal M oz  ......  Subscription required
Subscription required - Subscription is required.

Operational Metrics:

Metrics202120202019201820172016
Tonnes milled  ......  Subscription required  ......  Subscription required3,492 kt3,492 kt2,218 kt423 kt
Subscription required - Subscription is required.

Reserves at May 31, 2021:
Mineral reserve Cut-off is 196 g/t AgEq for San Julián Veins.
Mineral reserve Cut-off is 119 g/t AgEq for San Julián Disseminated.
Mineral resource Cut-off is 151 g/t AgEq for San Julián Veins.
Mineral resource Cut-off is 109 g/t AgEq for San Julián Disseminated.

CategoryOreTypeTonnage CommodityGradeContained Metal
Probable Veins 5,310 kt Silver 244 g/t 41,616 koz
Probable Disseminated 6,338 kt Silver 162 g/t 32,962 koz
Probable Veins 5,310 kt Gold 1.72 g/t 293 koz
Probable Disseminated 6,338 kt Gold 0.09 g/t 18 koz
Probable Disseminated 6,338 kt Zinc 1.16 % 73 kt
Probable Disseminated 6,338 kt Lead 0.47 % 30 kt
Measured & Indicated Veins 12,060 kt Silver 200 g/t 77,558 koz
Measured & Indicated Disseminated 13,120 kt Silver 152 g/t 64,182 koz
Measured & Indicated Veins 12,060 kt Gold 1.8 g/t 697.09 koz
Measured & Indicated Disseminated 13,120 kt Gold 0.09 g/t 38.2 koz
Measured & Indicated Disseminated 13,120 kt Zinc 1.3 % 170 kt
Measured & Indicated Disseminated 13,120 kt Lead 0.48 % 62 kt
Inferred Veins 7,615 kt Silver 185 g/t 45,364 koz
Inferred Disseminated 3 kt Silver 39 g/t 4 koz
Inferred Veins 7,615 kt Gold 1.4 g/t 342.94 koz
Inferred Disseminated 3 kt Gold 0.05 g/t
Inferred Disseminated 3 kt Zinc 1.62 %
Inferred Disseminated 3 kt Lead 0.27 %

Financials:

Units2022202120202019201820172016
Capital expenditures (planned) M USD  ......  Subscription required
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required83.1   79.1   134.1  
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required366.5   287.2   67.4  
Gross profit M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required176.5   174.7   45.8  
EBITDA M USD  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required

Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jun 21, 2022
....................... Subscription required ....................... Subscription required Subscription required Jun 21, 2022
....................... Subscription required ....................... Subscription required Subscription required Jun 21, 2022
....................... Subscription required ....................... Subscription required Subscription required Jun 21, 2022
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2021
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
Corporate Presentation 2022
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2019
................................... 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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