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Mexico
Cienega Mine

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 Location:
206 km NW from Durango, Durango, Mexico
  Address:
Guadalupe Patoni No. 333, Colonia Del Maestro, Dom. Conocido Ciénega de Ntra. Señora
Santiago Papasquiaro
Durango, Mexico
34240
Phone  ...  Subscription required
Fax01-(674)-864-60-13
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News
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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Gold
  • Silver
  • Zinc
  • Lead
Mining Method
  • Longhole open stoping
Processing
  • Flotation
  • Leaching plant / circuit
Production Start...
Mine Life4.2 years (as of Jan 1, 2021)

Owners

Source: p. 54, 278
CompanyInterestOwnership
Fresnillo plc. 100 % Indirect

Contractors

Subscription required - Subscription is required.

Deposit Type

  • Epithermal
  • Vein / narrow vein

Summary:

The La Ciénega gold-silver veins are low-sulfidation, epithermal-type deposits related to a rhyolitic flow-dome complex. Ore deposits in the La Ciénega district consist of a series of subparallel, northwest– southeast-trending veins which are hosted in andesitic and rhyolitic rocks that belong to the Tertiary-age Upper and Lower Volcanic sequences. The veins are vertical to steeply dipping structures which consist of quartz, generally containing gold-silver and less than 10 percent combined lead, zinc, and copper sul-fide, and sulfosalt minerals. Supergene enrichment is present in the upper parts of the known ore shoots.

Mining Methods

  • Longhole open stoping

Summary:

Ciénega is a gold-silver mine located near the small community of Nuestra Señora de la Ciénega. Long-hole open stoping mining method is utilized at Ciénega.

Crushing and Grinding

Processing

  • Flotation
  • Leaching plant / circuit

Source: Subscription required

Summary:

The ore from mine is processed at Cienega flotation and leaching plant.

Recoveries & Grades:

CommodityParameter2021202020192018201720162015
Gold Head Grade, g/t  ......  Subscription required  ......  Subscription required  ......  Subscription required1.651.821.842.07
Silver Head Grade, g/t  ......  Subscription required  ......  Subscription required  ......  Subscription required164.4151.5143.5129
Zinc Head Grade, %  ......  Subscription required  ......  Subscription required  ......  Subscription required0.830.9810.8
Zinc Concentrate Grade, %  ......  Subscription required  ......  Subscription required  ......  Subscription required47.25052.251.1
Lead Head Grade, %  ......  Subscription required  ......  Subscription required  ......  Subscription required0.60.740.680.61
Lead Concentrate Grade, %  ......  Subscription required  ......  Subscription required  ......  Subscription required37.138.337.739.5

Production:

CommodityProductUnits2021202020192018201720162015
Gold Metal oz  ......  Subscription required  ......  Subscription required  ......  Subscription required66,86971,94772,85185,662
Silver Metal oz  ......  Subscription required  ......  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  ......  Subscription required  ......  Subscription required
Zinc Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Lead Metal t  ......  Subscription required  ......  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  ......  Subscription required
Silver Equivalent Metal M oz  ......  Subscription required
Subscription required - Subscription is required.

Operational Metrics:

Metrics202120202019201820172016
Tonnes milled  ......  Subscription required  ......  Subscription required1,329 kt1,324 kt1,302 kt1,275 kt
Daily milling capacity  ......  Subscription required  ......  Subscription required4 kt4 kt4 kt4 kt
Annual milling capacity  ......  Subscription required  ......  Subscription required1,340 kt1,340 kt1,340 kt1,340 kt
Subscription required - Subscription is required.

Reserves at May 31, 2021:
The cut-off grades for the Ciénega reserve vary between 240 and 326 g/t AgEq
The cut-off grade for Ciénega’s mineral resources varies between 200 and 284 g/t AgEq.

CategoryTonnage CommodityGradeContained Metal
Probable 5,402 kt Gold 1.9 g/t 331 koz
Probable 5,402 kt Silver 199 g/t 34,604 koz
Probable 5,402 kt Zinc 1.22 % 66 kt
Probable 5,402 kt Lead 0.83 % 45 kt
Proven & Probable 5,402 kt Gold 1.9 g/t 331 koz
Proven & Probable 5,402 kt Silver 199 g/t 34,604 koz
Proven & Probable 5,402 kt Zinc 1.22 % 66 kt
Proven & Probable 5,402 kt Lead 0.83 % 45 kt
Measured & Indicated 10,786 kt Gold 3.16 g/t 1,096 koz
Measured & Indicated 10,786 kt Silver 227 g/t 78,692 koz
Measured & Indicated 10,786 kt Zinc 1.9 % 205 kt
Measured & Indicated 10,786 kt Lead 1.27 % 137 kt
Inferred 8,705 kt Gold 1.97 g/t 551.27 koz
Inferred 8,705 kt Silver 227 g/t 63,402 koz
Inferred 8,705 kt Zinc 1.14 % 99 kt
Inferred 8,705 kt Lead 0.63 % 55 kt

Commodity Production Costs:

CommodityUnits202120202019201820172016
Cash costs Gold USD  ......  Subscription required†  ......  Subscription required†  ......  Subscription required† 25.9 / oz† -163.7 / oz† -217.19 / oz†
All-in sustaining costs (AISC) Gold USD  ......  Subscription required†  ......  Subscription required†  ......  Subscription required† 1,414 / oz† 691.43 / oz† 428 / oz†
† Net of By-Product.
Subscription required - Subscription is required.

Operating Costs:

Units2021202020192018201720162015
Total operating costs ($/t milled) USD 86.176.778.370.866.555.563

Financials:

Units2022202120202019201820172016
Capital expenditures (planned) M USD  ......  Subscription required
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 72.9   46.5   32.7  
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 187.1   198.3   185  
Gross profit M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 79.2   97.1   100.1  
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 20, 2022
....................... Subscription required ....................... Subscription required Subscription required Jun 20, 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
Subscription required Subscription required Subscription required 2016
Subscription required Subscription required Subscription required 2015

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2019
Annual Report 2018
Annual Report 2017
Annual Report 2016
Corporate Presentation 2016
Other 2016
Annual Report 2015
Corporate Presentation 2015
Annual Report 2014
Year-end Mineral Reserves 2014
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Aerial view:

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