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Construction|Engineering|flotation|Gold|Mining|PROJECT|Resources|Systems|Underground|Drilling|Bearing|Operations
Construction|Engineering|flotation|Gold|Mining|PROJECT|Resources|Systems|Underground|Drilling|Bearing|Operations
construction|engineering|flotation|gold|mining|project|resources|systems|underground|drilling|bearing|operations

Cariboo gold project, Canada

Image of flakes of gold from Cariboo gold project

Photo by Osisko Development Corp

5th September 2025

By: Sheila Barradas

Creamer Media Research Coordinator & Senior Deputy Editor

     

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Name of the Project
Cariboo gold project.

Location
British Columbia, Canada.

Project Owner/s
North American gold development company Osisko Development Corp.

Project Description
The project is envisioned as a traditional under­ground operation using mechanised longhole open stoping to extract ore from gold-bearing vein corridors – a complicated network of mineralised quartz veins predominantly hosted within unmineralised sandstone.

Underground mining will target five mineralised zones along 4 400 m of strike, accessed by two ramps – the currently operational Cow portal and the new Valley portal. 

Each zone includes several vein systems extending to a vertical depth of about 650 m. 

The April 2025 optimised feasibility study estimates average production of about 190 000 oz/y of gold over a ten-year mine life, and 202 000 oz over the first five years. Peak throughput is put at 4 900 t/d. 

The feasibility study proposes ore beneficiation to be exclusively completed at the mine site complex. This would produce saleable gold doré from a gravity concentrate and about 66 t/d of high-grade flotation concentrate averaging about 133 g/t gold.

Significant opportunities exist to potentially enhance project economics and extend the life-of-mine through conversion of mineral resources adjacent to mineral reserves through infill drilling.

Potential Job Creation
The optimised feasibility study shows strong support for local employment, with up to 613 direct jobs expected to be created during peak construction and 525 permanent jobs during operations.

Net Present Value/Internal Rate of Return
Using a base case gold price of $2 400/oz, the feasibility study estimates a net present value, at a 5% discount rate, of $943-million and an internal rate of return of 22.1%, with payback from commercial production estimated at 2.8 years.

Capital Expenditure
Initial capital costs are estimated at $881-million.

Planned Start/End Date
The feasibility study envisages first gold in the second half of 2027, assuming construction starts in the third quarter of 2025, and subject to progress on ongoing project financing discussions.

Latest Developments
None stated.

Key Contracts, Suppliers and Consultants
BBA Engineering (optimised feasibility study).

Contact Details for Project Information
Osisko Development Corp, tel + 1 514 940 0685 or email info@osiskodev.com/ir@osiskodev.com.
 

Edited by Martin Zhuwakinyu
Creamer Media Senior Deputy Editor

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