• Data Access
  • Your Email  
  • Your Email  
Keep me signed in.
Forgot your password?
Close
  • Forgot Your Password?
  • Enter the email you signed up with and we'll email it to you.
  • Your Email  
Close
Back
MDO
Mining Data Solutions
  • Home
  • Database
  • Subscribe
  • Sign In
  • Sign In
Canada
KSM Project

This page is not tailored to
devices with screen width under 750 px.
 Location:
65 km NW from Stewart, British Columbia, Canada

  Project Contacts:
1235 Main Street
P.O. Box 2536
Smithers
British Columbia, Canada
V0J 2N0
Phone  ...  Subscription required
Fax250-847-4703
EmailEmail
WebsiteWeb
Additional Resources for Suppliers & Investors
Drill results over 30 g/t Au
Stay on top of recent discoveries.
Search drill results by commodity and grade.
Largest mines in the Americas
Mining and mill throughput capaciites.
Full profiles of select mines and projects.
Deepest underground mines
Shaft depth and mill throughput data.
Full profiles of select mines and projects.
Heavy mobile equipment
HME type, model, size and quantity.
Full profiles of select mines and projects.
Permitting and construction projects
Projects at the permitting or construction stage. Full profiles of select projects.
Mines with remote camps
Camp size, mine location and contacts.
Full profiles of select mines and projects.
Mines & projects in Canada
A list of country's mines and projects.
Full profiles of select mines and projects.
  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

Thank you for browsing through mine profiles compiled by the Mining Data Online team.

Would you like to subcribe or schedule a Demo?
  • Name:
     
  • Company:
     
  • Position:
     
  • Phone:
  • Email:
  • Message:

Overview

StagePermitting
Mine TypeOpen Pit
Commodities
  • Gold
  • Copper
  • Silver
  • Molybdenum
Mining Method
  • Truck & Shovel / Loader
Mine Life33 years (as of Jan 1, 2022)
The Kerr-Sulphurets-Mitchell (KSM) is the world's largest undeveloped project by gold and copper resources.

The KSM mine development has been evaluated as a Prefeasibility Study (2022 PFS) using open pit mining of the Mitchell, East Mitchell and Sulphurets deposits. A Preliminary Economic Assessment (2022 PEA) is a stand-alone mine plan that has been undertaken to evaluate a potential future expansion of the KSM mine to the Iron Cap and Kerr deposits after the 2022 PFS mine plan has been completed.
Latest NewsSeabridge to Raise US$150 Million under KSM Net Smelter Royalty Agreement with Sprott Funds to be Used Towards Achieving 'Substantially Started' Status     May 11, 2023


Owners

Source: p. 27,29
CompanyInterestOwnership
Seabridge Gold Inc. 100 % Indirect
All claims and leases are in good standing under the Mining Tenure Act of BC and are recorded as owned 100% by KSMCo.

KSM Mining ULC (KSMCo) is a wholly owned subsidiary of Seabridge Gold Inc.

Contractors

Subscription required - Subscription is required.


Deposit Type

  • Porphyry


Summary:

The KSM deposits display many diagnostic features of porphyry Cu ± Au ± Mo systems. The deposits are centered on intrusive complexes composed of Early Jurassic, Texas Creek suite porphyry stocks and dykes. The Kerr, Mitchell, East Mitchell, and Iron Cap zones display the typical lateral and vertical zoning sequence of alteration assemblages observed in many porphyry systems: deep central potassic alteration, peripheral propylitic alteration, and shallow sericitic alteration. Mineralization is associated with stockwork quartz veinlets and arrays of sheeted quartz veinlets, with vein density decreasing in later intrusive phases. Host rocks may be mineralized for up to several hundred meters from the intrusions. The Kerr, Mitchell, and East Mitchell zones also feature small remnants of advanced argillic alteration. The structurally complex Sulphurets deposit does not feature the same clear alteration zoning patterns observed at the other three deposits, due to its dismembered and fragmental nature. However, the Lower Panel fault block at Sulphurets, which hosts the bulk of the mineralization, features potassic alteration and mineralization typical of porphyry Cu ± Au ± Mo systems.

KerrR Zone
The Kerr Zone is centered on an Early Jurassic, north-south trending, steep westerly dipping, tabular intrusive complex. Drilling demonstrates that the Kerr Zone has an extent of 2,400 m along strike, a width of roughly 800 m, and a vertical extent of at least 2,200 m. The f ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

A PFS-level production schedule, based on an annualized average 195,000 t/d mill feed rate, has been developed for the PFS based on open pit designs at Mitchell, East Mitchell, and Sulphurets deposits areas. The resulting mine life is approximately 33 years.

Mitchell Pit Design
The proposed Mitchell pit will be located within a glacially modified valley and targets a mineral deposit located in the valley floor, resulting in 1,200 m high ultimate slopes.

Recommended inter-ramp slope angles vary from 36° to 53° based on wall orientation, overall wall height, geotechnical domain, and controls on slope stability. Inter-ramp slope heights are limited to 150 m, after which a geotechnical berm (or ramp) with a minimum width of 25 m is required. The inter ramp height limits and geotechnical berms provide flexibility in the mine plan to mitigate potential slope instability; access for slope monitoring installations; and working space for in-pit wells, drains, and other water management infrastructure. All final pit slopes are assumed to be excavated using controlled blasting. Depressurization of the proposed pit slopes requires a combination of vertical wells, horizontal drains, and a dewatering adit with drainage galleries.

Sulphurets Pit Design
The proposed Sulphurets pit will be located on a glacially modified ridge between the Mitchell and Sulphurets valleys. The proposed mine plan would result in ultimate pit slopes with maximum heights ........


Crushing and Grinding
Source: Subscription required

- subscription is required.


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityProductUnitsAvg. AnnualLOM
Gold Metal in conc./ doré koz 1,02733,900
Gold Metal in doré koz 10,521
Copper Metal in concentrate M lbs  ......  Subscription required  ......  Subscription required
Silver Metal in conc./ doré koz  ......  Subscription required  ......  Subscription required
Silver Metal in doré koz  ......  Subscription required
Molybdenum Metal in concentrate M lbs  ......  Subscription required  ......  Subscription required
Molybdenum Concentrate kt  ......  Subscription required
Copper-Gold Concentrate kt  ......  Subscription required

Operational Metrics:

Metrics
Ore tonnes mined  ......  Subscription required
Stripping / waste ratio  ......  Subscription required
Daily ore mining rate  ......  Subscription required
Waste tonnes, LOM  ......  Subscription required
Total tonnes mined, LOM  ......  Subscription required
Daily processing rate  ......  Subscription required
Tonnes processed, LOM  ......  Subscription required
Annual processing rate  ......  Subscription required
Mining scale, tpd  ......  Subscription required
Processing scale, tpd  ......  Subscription required
* According to 2022 study.
Subscription required - Subscription is required.

Reserves at May 26, 2022:
Mineral Reserves are reported at NSR cut-offs that vary between of Cdn$11/t and Cdn$25/t using the following assumptions: metal prices of US$1300/oz Au, US$3.00/lb Cu, US$20/oz Ag, and US$ 9.70/lb Mo at a currency exchange rate of 0.79 US$ per 1.00 Cdn$; Copper concentrate terms are 96% payable Cu; 97.8% payable Au; 90% payable Ag, molybdenum concentrate terms are 99% payable.

CategoryTonnage CommodityGradeContained Metal
Proven & Probable 2,292 Mt Gold 0.64 g/t 47.3 M oz
Proven & Probable 2,292 Mt Copper 0.14 % 7,320 M lbs
Proven & Probable 2,292 Mt Silver 2.2 g/t 160 M oz
Proven & Probable 2,292 Mt Molybdenum 76 ppm 385 M lbs
Measured & Indicated 5,356,700 kt Gold 0.51 g/t 88,360 koz
Measured & Indicated 5,356,700 kt Copper 0.16 % 19,420 M lbs
Measured & Indicated 5,356,700 kt Silver 2.4 g/t 413,680 koz
Measured & Indicated 5,356,700 kt Molybdenum 63 ppm 742 M lbs
Inferred 5,684,700 kt Gold 0.36 g/t 65,643 koz
Inferred 5,684,700 kt Copper 0.28 % 35,150 M lbs
Inferred 5,684,700 kt Silver 2.2 g/t 405,832 koz
Inferred 5,684,700 kt Molybdenum 33 ppm 415 M lbs

Commodity Production Costs:

CommodityUnitsAverage
Cash costs Gold USD  ......  Subscription required *†
All-in costs Gold USD  ......  Subscription required *†
Assumed price Molybdenum USD  ......  Subscription required&nbs
Assumed price Copper USD  ......  Subscription required&nbs
Assumed price Silver USD  ......  Subscription required&nbs
Assumed price Gold USD  ......  Subscription required&nbs
* According to 2022 study / presentation.
† Net of By-Product.
Subscription required - Subscription is required.

Operating Costs:

Units2022
OP mining costs ($/t milled) USD 3.31 *
Processing costs ($/t milled) USD  ......  Subscription required
G&A ($/t milled) USD  ......  Subscription required
Total operating costs ($/t milled) USD  ......  Subscription required
* According to 2022 study.
Subscription required - Subscription is required.

2022 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M USD  ......  Subscription required
Sustaining CapEx $M USD  ......  Subscription required
Total CapEx $M USD  ......  Subscription required
Total OpEx $M USD  ......  Subscription required
Income Taxes $M USD  ......  Subscription required
Mining Taxes $M USD  ......  Subscription required
Total Taxes $M USD  ......  Subscription required
Royalty payments $M USD  ......  Subscription required
Gross revenue (LOM) $M USD  ......  Subscription required
Net revenue (LOM) $M USD  ......  Subscription required
Pre-tax Cash Flow (LOM) $M USD  ......  Subscription required
After-tax Cash Flow (LOM) $M USD  ......  Subscription required
Pre-tax NPV @ 5% $M USD  ......  Subscription required
Pre-tax NPV @ 8% $M USD  ......  Subscription required
After-tax NPV @ 5% $M USD  ......  Subscription required
After-tax NPV @ 8% $M USD  ......  Subscription required
Pre-tax IRR, %  ......  Subscription required
After-tax IRR, %  ......  Subscription required
Pre-tax payback period, years  ......  Subscription required
After-tax payback period, years  ......  Subscription required
Subscription required - Subscription is required.


Proposed Heavy Mobile Equipment as of August 8, 2022:
HME TypeSizeQuantity
Dozer 430 kW ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNamePhoneProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Aug 8, 2022
....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Aug 8, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 16, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 16, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2022

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
Preliminary Economic Assessment 2022
Press Release 2022
................................... Subscription required 2020
Pre-Feasibility Study Report 2016
Subscription required - Subscription is required.

News:

NewsDate
Seabridge to Raise US$150 Million under KSM Net Smelter Royalty Agreement with Sprott Funds to be Used Towards Achieving 'Substantially Started' Status May 11, 2023

Subscription required - Subscription is required.

Terms of Use Privacy Policy © 2017-2023 MDO Data Online Inc.