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Mexico
Cozamin Mine

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 Location:
3 km N from Zacatecas, Zacatecas, Mexico
  Address:
Cerro de San Roberto Ejido Hacienda Nueva Morelos
Zacatecas
Zacatecas, Mexico
98100
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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
  • Copper
  • Silver
  • Zinc
  • Lead
Mining Method
  • Longitudinal open stoping
  • Cut & Fill
  • Longhole open stoping
  • Transverse open stoping
  • Paste backfill
  • Backfill
Production Start...
Mine Life2030
The Cozamin Mine is an underground mining operation that commenced in 2006. Cozamin Mine concentrate production is primarily copper with significant by-product silver, lesser amounts of byproduct zinc and lead concentrate and small amounts of by-product gold credits. The copper concentrate is delivered by truck under an agreement to major trading companies in Manzanillo, Mexico. Depending on market conditions the copper concentrate is sold under an annual or multi-year agreement. Similarly, the zinc and lead concentrates are sold under annual tenders or multi-year agreements and delivered by truck to Manzanillo or local Mexican smelters.
Latest NewsCapstone Copper Reports First Quarter 2023 Results     May 3, 2023

Owners

Source: p. 16
CompanyInterestOwnership
Capstone Gold, S.A. De C.V. (operator) 100 % Direct
Capstone Copper Corp. 100 % Indirect
Capstone owns 100% of Cozamin through its subsidiaries Capstone Gold S.A. de C.V. (Capstone Gold; 99.9% ownership) and Capstone Mexico Mining Corp. (0.01% ownership).

Contractors

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Deposit Type

  • Vein / narrow vein
  • Epithermal

Summary:

Deposit Types
All mineralization at Cozamin occurs in veins, and fracture-controlled systems of veinlets. Currently mined mineralization at Cozamin is best described as an intermediate sulphidation system. The copper-rich intermediate sulphidation mineralization is an early phase that is enveloped, overprinted or brecciated by zinc-rich intermediate sulphidation mineralization. The copper veins are inferred to be higher temperature, have significantly fewer vugs and can be massive pyrrhotite-pyrite-chalcopyrite with little gangue. Zinc-rich veins also tend to be sulphide rich, like the copper-rich ones, but with slightly more gangue. Well-banded quartz, or quartzcarbonate veins are inferred to be lower temperature and best classified as low sulphidation. They often have open space filling textures with quartz druse vug linings and typically gold and silver rich with lesser base metals and are generally not being mined today, but were historically important.

This transition from intermediate sulphidation copper-dominant mineralization to intermediate sulphidation zinc-dominant mineralization is thought to be the result of an evolving, telescoped hydrothermal system. Blocks or fragments of massive chalcopyrite-pyrite-pyrrhotite mineralization enveloped by zinc-dominant mineralization are observed in drill core and in mine workings. This telescoping system is closely associated with the district’s largest center of rhyolite flow domes which may be the shallow ex ........

Mining Methods

  • Longitudinal open stoping
  • Cut & Fill
  • Longhole open stoping
  • Transverse open stoping
  • Paste backfill
  • Backfill

Summary:

The Cozamin Mine is entirely mined using underground mining methods. The mine has been operated by Capstone since 2006 and has almost exclusively employed the longitudinal long-hole open stoping (LHOS) mining method for bulk ore extraction over the period. As an operating mine with experience in the LHOS method, the procedures, mine designs, and all required mining equipment and infrastructure required to support the extraction of ore are well understood. A primary component of this Technical Report is to describe the introduction of paste backfill, with delivery of paste underground planned in 2023. With the introduction of paste backfill, rib pillars between longhole stopes will be eliminated. Two variations of longhole stoping will be employed: transverse longhole stoping for ore widths greater than 7 meters and longitudinal longhole stoping for widths less than 7 meters wide. This will maximize the recovery of the reserves for the longhole stoping methods. A primary consideration of this mine plan is to ensure that all waste generated from mining operations remains underground, and this will be achieved by disposing of the waste in the cut and fill stopes, and secondary transverse longhole stopes. The cut and fill mining method will be used in the upper areas of the mine which are closer to the neighboring communities to minimize disturbances caused during blasting operations.

Mining Method and Design
The Cozamin mineral reserve estimate is comprised of s ........

Crushing and Grinding
Source: Subscription required

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Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.

^ Guidance / Forecast.

Production:

CommodityProductUnits2023202220212020201920182017
Copper Payable metal M lbs  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required3535
Silver Payable metal koz  ......  Subscription required ^
Zinc Payable metal M lbs  ......  Subscription required ^
Lead Payable metal M lbs  ......  Subscription required ^
Copper Metal in concentrate M lbs  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required3637
Copper Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required6361
Silver Metal in concentrate koz  ......  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
Zinc Metal in concentrate M lbs  ......  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
Lead Metal in concentrate M lbs  ......  Subscription required  ......  Subscription required
^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202220212020201920182017
Tonnes milled  ......  Subscription required  ......  Subscription required  ......  Subscription required1,146 kt986 kt912 kt
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required1,143 kt989 kt912 kt
Daily milling rate  ......  Subscription required  ......  Subscription required  ......  Subscription required3,140 t2,702 t2,499 t
Daily milling capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required
^ Guidance / Forecast.
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Reserves at January 1, 2023:
The Mineral Reserve is reported at or above a blended cut-off of US$60.54/t NSR for long-hole stoping and US$65.55/t NSR for cut-and-fill mining.

The Mineral Resource is reported above a net smelter return of US$59/t.

CategoryTonnage CommodityGradeContained Metal
Probable 10,210 kt Copper 1.65 % 168 kt
Probable 10,210 kt Silver 43.44 g/t 14,258 koz
Probable 10,210 kt Zinc 0.54 % 55 kt
Probable 10,210 kt Lead 0.29 % 29 kt
Measured & Indicated 19,664 kt Copper 1.58 % 311 kt
Measured & Indicated 19,664 kt Silver 46.9 g/t 29,662 koz
Measured & Indicated 19,664 kt Zinc 1.08 % 212 kt
Measured & Indicated 19,664 kt Lead 0.41 % 81 kt
Inferred 12,283 kt Copper 0.72 % 88 kt
Inferred 12,283 kt Silver 38.3 g/t 15,123 koz
Inferred 12,283 kt Zinc 1.97 % 242 kt
Inferred 12,283 kt Lead 0.83 % 102 kt

Commodity Production Costs:

CommodityUnits2023202220212020201920182017
Credits (by-product) Copper USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required -0.94 / lb   -0.5 / lb  
All-in sustaining costs (AISC) Copper USD  ......  Subscription required†  ......  Subscription required†  ......  Subscription required†  ......  Subscription required† 1.5 / lb†   1.9 / lb†  
C1 cash costs Copper USD  ......  Subscription required ^†  ......  Subscription required†  ......  Subscription required†  ......  Subscription required†  ......  Subscription required† 0.75 / lb†   1.16 / lb†  
All-in costs Copper USD 1.9 / lb†  
^ Guidance / Forecast.
† Net of By-Product.
Subscription required - Subscription is required.

Operating Costs:

Units2021202020192018201720162015
Total operating costs ($/t milled) USD 43.942.748.549.450.541.742.4

Financials:

Units2023202220212020201920182017
Capital expenditures (planned) M USD  ......  Subscription required
Sustaining costs M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 20.1   18.1  
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 121.2   108.4  
Operating Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 39.7   39.5  
Pre-tax Income M USD  ......  Subscription required
After-tax Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 24.4   28.2  
EBIT M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 39.8   39.2  
EBITDA M USD  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required

Water Supply
Source: Subscription required

- subscription is required.

Heavy Mobile Equipment as of January 1, 2023:
HME TypeModelSizeQuantityLeased or
Contractor
Backhoe ....................... Subscription required ....................... Subscription required
Drill ....................... Subscription required 16 ft ....................... Subscription required
Drill ....................... Subscription required 16 ft ....................... Subscription required
Drill (long hole) ....................... Subscription required ....................... Subscription required
Drill (long hole) ....................... Subscription required ....................... Subscription required
Drill (long hole) ....................... Subscription required ....................... Subscription required
Drill (long hole) ....................... Subscription required ....................... Subscription required
Jumbo ....................... Subscription required Leased
Load-Haul-Dump (LHD) ....................... Subscription required 4.6 cu. m ....................... Subscription required
Load-Haul-Dump (LHD) ....................... Subscription required Leased
Raise boring rig ....................... Subscription required ....................... Subscription required
Rock bolter ....................... Subscription required ....................... Subscription required
Rock bolter ....................... Subscription required Leased
Scaler ....................... Subscription required ....................... Subscription required
Scissor Lift ....................... Subscription required ....................... Subscription required
Scissor Lift ....................... Subscription required ....................... Subscription required
Telescopic Handler ....................... Subscription required ....................... Subscription required
Telescopic Handler ....................... Subscription required ....................... Subscription required
Truck (haul) ....................... Subscription required ....................... Subscription required
Truck (haul) 7 cu. m ....................... Subscription required Leased
Truck (haul) 14 cu. m ....................... Subscription required Leased
Truck (underground) ....................... Subscription required 18 cu. m ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jan 1, 2023
....................... Subscription required ....................... Subscription required Subscription required Jan 1, 2023
....................... Subscription required ....................... Subscription required Subscription required May 22, 2023
....................... Subscription required ....................... Subscription required Subscription required May 22, 2023
....................... Subscription required ....................... Subscription required Subscription required May 22, 2023
....................... Subscription required ....................... Subscription required Subscription required May 22, 2023
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2017
Subscription required 2016

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2023
Quarterly Report 2023
Technical Report 2023
Annual Information Form 2022
Corporate Presentation 2022
Corporate Presentation 2022
Management Discussion & Analysis 2022
Press Release 2022
Press Release 2022
................................... 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
Annual Information Form 2018
Management Discussion & Analysis 2018
Press Release 2018
Technical Report 2018
Annual Information Form 2017
Management Discussion & Analysis 2017
Press Release 2017
Press Release 2017
Annual Information Form 2016
Management Discussion & Analysis 2016
Annual Information Form 2015
Management Discussion & Analysis 2015
Annual Information Form 2014
Corporate Presentation 2014
Management Discussion & Analysis 2014
Technical Report 2014
Subscription required - Subscription is required.

News:

NewsDate
Capstone Copper Reports First Quarter 2023 Results May 3, 2023

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