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United States
Chino Mine

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 Location:
17 km E from Silver City, New Mexico, United States

  Regional Office:
333 North Central Ave.
Phoenix
Arizona, United States
85004
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Copper
  • Molybdenum
  • Gold
  • Silver
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life2047
In April 2020, operations at Chino were suspended in connection with revised operating plans in response to the COVID-19 pandemic. During 2021, was restarted mining activities at Chino, which has continued to operate at approximately 50% of capacity.


Owners

Source: p. 4
CompanyInterestOwnership
Freeport-McMoRan Inc. 100 % Indirect
Freeport Minerals Corp. (operator) 100 % Direct
Freeport-McMoRan owns 100% of the Chino mine through its wholly-owned subsidiary Freeport Minerals Corp.

Contractors

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Deposit Type

  • Porphyry
  • Skarn


Summary:

The Chino mine is a porphyry copper deposit with adjacent copper skarn deposits. There is leachable oxide, secondary sulfide and millable primary sulfide mineralization. The predominant oxide copper mineral is chrysocolla. Chalcocite is the most important secondary copper sulfide mineral, and chalcopyrite and molybdenite the dominant primary sulfides.


Mining Methods

  • Truck & Shovel / Loader


Summary:

Chino mine is an open-pit copper mining complex that has been in operation since 1910. The available mining fleet consists of eighteen 240-metric-ton haul trucks loaded by three electric shovels with bucket sizes ranging from 31 to 48 cubic meters, which are capable of moving an average of 180,000 metric tons of material per day. The highest bench elevation is 2,250 meters above sea level and the ultimate pit bottom is expected to be 1,508 meters above sea level. The Chino operation encompasses approximately 125,100 acres, comprising 109,000 acres of fee lands and 16,100 acres of unpatented mining claims held on public mineral estate.


Crushing and Grinding


Processing

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Summary:

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Production:
In April 2020, operations at Chino were suspended in connection with revised operating plans in response to the COVID-19 pandemic. During the first quarter 2021, Freeport-McMoRan restarted mining activities.

CommodityUnits2022202120202019201820172016
Copper M lbs  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required173215308
Molybdenum M lbs
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Operational Metrics:

Metrics202220212020201920182017
Daily mining capacity  ......  Subscription required  ......  Subscription required235,000 t235,000 t235,000 t235,000 t
Daily milling capacity  ......  Subscription required  ......  Subscription required36,000 t36,000 t36,000 t36,000 t
Annual production capacity  ......  Subscription required  ......  Subscription required150 M lbs of copper cathode150 M lbs of copper cathode150 M lbs of copper cathode150 M lbs of copper cathode
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Reserves at December 31, 2022:
Mineral Reserves Cut-off grades are: Mill - 0.22 % CuEq; ROM leach - 0.07 % CuEq.
Mineral Resources Cut-off grades are: Mill - 0.13 % CuEq, ROM leach - 0.06 % CuEq.

CategoryOreTypeTonnage CommodityGradeContained MetalRecoverable Metal
Proven & Probable ROM leach 64 Mt Copper 0.24 % B lbs 0.2 B lbs
Proven & Probable Stockpiles 1,782 Mt Copper 0.25 % B lbs 0.3 B lbs
Proven & Probable Sulphide 255 Mt Copper 0.49 % B lbs 2.2 B lbs
Proven & Probable Sulphide 255 Mt Gold 0.04 g/t M oz 0.3 M oz
Proven & Probable Sulphide 255 Mt Silver 0.89 g/t M oz 5.7 M oz
Measured ROM leach 23 Mt Copper 0.2 %
Measured Sulphide 387 Mt Copper 0.32 %
Measured Sulphide 387 Mt Molybdenum 0.02 %
Measured Sulphide 387 Mt Gold 0.03 g/t
Measured Sulphide 387 Mt Silver 0.57 g/t
Indicated ROM leach 4 Mt Copper 0.24 %
Indicated Sulphide 246 Mt Copper 0.35 %
Indicated Sulphide 246 Mt Molybdenum 0.01 %
Indicated Sulphide 246 Mt Gold 0.03 g/t
Indicated Sulphide 246 Mt Silver 0.6 g/t
Inferred ROM leach 6 Mt Copper 0.24 %
Inferred Sulphide 98 Mt Copper 0.32 %
Inferred Sulphide 98 Mt Molybdenum 0.01 %
Inferred Sulphide 98 Mt Gold 0.03 g/t
Inferred Sulphide 98 Mt Silver 0.6 g/t
Total Resource ROM leach 33 Mt Copper 0.22 % 0.2 B lbs
Total Resource Sulphide 731 Mt Copper 0.33 % 5.3 B lbs
Total Resource Sulphide 731 Mt Molybdenum 0.01 % 0.2 B lbs
Total Resource Sulphide 731 Mt Gold 0.03 g/t 0.7 M oz
Total Resource Sulphide 731 Mt Silver 0.59 g/t 13.8 M oz


Pipelines and Water Supply
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Heavy Mobile Equipment as of December 31, 2022:
HME TypeSizeQuantity
Shovel (rope) ....................... Subscription required
Truck (haul) 240 t ....................... Subscription required
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Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Mar 31, 2023
....................... Subscription required ....................... Subscription required Subscription required Mar 31, 2023
....................... Subscription required ....................... Subscription required Subscription required Apr 20, 2023
....................... Subscription required ....................... Subscription required Subscription required Mar 31, 2023
....................... Subscription required ....................... Subscription required Subscription required Mar 31, 2023
....................... Subscription required ....................... Subscription required Subscription required Apr 20, 2023
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Staff:

Total WorkforceYear
Subscription required 2022
Subscription required 2021
Subscription required 2020

Corporate Filings & Presentations:

DocumentYear
Form 10-K 2022
Other 2022
Other 2022
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Form 10-K 2018
Form 10-K 2017
Form 10-K 2016
Form 10-K 2015
Form 10-K 2014
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Subscription required - Subscription is required.

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