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Canada
Porcupine Operation (Borden Mine, Hollinger Mine, Hoyle Pond Mine)

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 Location:
6 km E from Timmins, Ontario, Canada

  Address:
4315 Gold Mine Road
P.O. Box 70
South Porcupine
Ontario, Canada
P0N 1H0
Phone  ...  Subscription required
Fax+1-705-235-6551
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit / Underground
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
  • Mechanized Cut & Fill
  • Longhole stoping
Processing
  • Gravity separation
  • Concentrate leach
  • Agitated tank (VAT) leaching
  • Carbon in pulp (CIP)
  • Solvent Extraction & Electrowinning
  • Cyanide (reagent)
Porcupine, consists of the Hollinger open pit and Hoyle pond underground operations, located in the city of Timmins, Ontario, as well as the Borden underground operation, located near the town of Chapleau, Ontario.


Owners

Source: p. 76
CompanyInterestOwnership
Newmont Corp. 100 % Indirect

Deposit Type

  • Breccia pipe / Stockwork
  • Vein / narrow vein


Summary:

The Porcupine mines are situated in the Porcupine Camp in Archean rocks of the western Abitibi Greenstone belt in the Canadian Shield. These consist of ultramafic and mafic volcanic rocks of the Keewatin subgroup overlain by sedimentary rocks of the Timiskaming group. The lands lie adjacent and to the north of the regionally significant Porcupine Destor Fault. Gold mineralization is found in a number of different structural settings and consists of continuous quartz carbonate veins, quartz tourmaline veins, quartz stockworks and gold associated with disseminated sulphides.


Mining Methods

  • Truck & Shovel / Loader
  • Mechanized Cut & Fill
  • Longhole stoping


Summary:

Currently, approximately 60% of the gold comes from the Hoyle Pond underground mine, where mechanized cut and fill and longhole mining methods are used to extract the ore, and the remaining ore comes from the Hollinger Open Pit mine. The Dome Underground mine ceased operations in 2017.


Crushing and Grinding


Processing

  • Gravity separation
  • Concentrate leach
  • Agitated tank (VAT) leaching
  • Carbon in pulp (CIP)
  • Solvent Extraction & Electrowinning
  • Cyanide (reagent)

Source: Subscription required

Summary:

Gold is recovered using a combination of gravity concentration and cyanidation techniques. The circuit consists of primary, secondary and tertiary crushing, rod/ball mill grinding, gravity concentration, cyanide leaching, carbon-in-pulp gold recovery, stripping, electro winning and refining.

Recoveries & Grades:

CommodityParameter2018201720162015201420132012
Gold Recovery Rate, %  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Gold Head Grade, g/t 2.362.812.642.372.452.282.12
Subscription required - Subscription is required.

Production:

CommodityUnits201920182017201620152014
Gold koz  ......  Subscription required  ......  Subscription required272277274300
All production numbers are expressed as metal in doré.
Subscription required - Subscription is required.

Operational Metrics:

Metrics201820172016201520142013
Tonnes milled  ......  Subscription required  ......  Subscription required3,491 kt4,015,000 t4,166,800 t4,231,700 t
Daily milling capacity  ......  Subscription required  ......  Subscription required12,000 t
Daily milling rate  ......  Subscription required  ......  Subscription required11,000 t11,420 t11,590 t
Subscription required - Subscription is required.

Reserves at December 31, 2019:

CategoryOreTypeTonnage CommodityGradeContained Metal
Proven In-Situ (OP) 11,900 kt Gold 1.5 g/t 570 koz
Proven In-Situ (UG) 600 kt Gold 10.53 g/t 200 koz
Proven Total 12,500 kt Gold 1.92 g/t 770 koz
Probable In-Situ (OP) 32,700 kt Gold 1.04 g/t 1,100 koz
Probable In-Situ (UG) 4,300 kt Gold 6.89 g/t 950 koz
Probable Total 37,000 kt Gold 1.72 g/t 2,050 koz
Proven & Probable In-Situ (OP) 44,600 kt Gold 1.16 g/t 1,670 koz
Proven & Probable In-Situ (UG) 4,900 kt Gold 7.33 g/t 1,150 koz
Proven & Probable Total 49,500 kt Gold 1.77 g/t 2,820 koz
Measured In-Situ (OP) 2,700 kt Gold 1.17 g/t 100 koz
Measured In-Situ (UG) 100 kt Gold 6.28 g/t 20 koz
Measured Total 2,800 kt Gold 1.33 g/t 120 koz
Indicated In-Situ (OP) 248,400 kt Gold 0.89 g/t 7,130 koz
Indicated In-Situ (UG) 700 kt Gold 4.34 g/t 110 koz
Indicated Total 249,100 kt Gold 0.9 g/t 7,240 koz
Measured & Indicated In-Situ (OP) 251,100 kt Gold 0.9 g/t 7,230 koz
Measured & Indicated In-Situ (UG) 800 kt Gold 4.58 g/t 130 koz
Measured & Indicated Total 251,900 kt Gold 0.91 g/t 7,360 koz
Inferred In-Situ (OP) 108,200 kt Gold 0.7 g/t 2,430 koz
Inferred In-Situ (UG) 1000 kt Gold 5.78 g/t 180 koz
Inferred Total 109,200 kt Gold 0.74 g/t 2,610 koz

Commodity Production Costs:

CommodityUnits2019201820172016201520142013
Total cash costs (sold) Gold USD  ......  Subscription required†
Total cash costs Gold USD  ......  Subscription required† 754 / oz† 688 / oz† 776 / oz† 647 / oz† 717 / oz†
All-in sustaining costs (sold) Gold USD  ......  Subscription required†
All-in sustaining costs (AISC) Gold USD  ......  Subscription required† 979 / oz† 898 / oz† 1,078 / oz† 906 / oz† 1,034 / oz†
† Net of By-Product.
Subscription required - Subscription is required.

Operating Costs:

Units2016201520142013
OP mining costs ($/t mined) USD 4.945.56
UG mining costs ($/t mined) USD  ......  Subscription required  ......  Subscription required
Combined mining costs ($/t milled) USD  ......  Subscription required  ......  Subscription required
Processing costs ($/t milled) USD  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Financials:

Units2019201820172016201520142013
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 97   80   96  
Sustaining costs M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 67  
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 315   379   407  
Operating Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required -1   92   163  
Subscription required - Subscription is required


Heavy Mobile Equipment as of December 31, 2010:
HME TypeModelQuantity
Backhoe & Rock Breaker 1
Dozer 2
Excavator 2
Grader 2
Loader 3
Shovel 1
Truck (haul) ....................... Subscription required 12
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2020
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2020
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2020
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2020
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2020
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2020
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2020
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2020
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2018
Subscription required 2017

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2018
................................... Subscription required 2018
Annual Information Form 2017
Annual Report 2017
Press Release 2017
Press Release 2017
Annual Report 2016
Form 40-F 2016
Annual Report 2015
Year-end Mineral Reserves 2015
Year-end Mineral Reserves 2014
Annual Report 2013
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Aerial view:

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