Marban Gold Mine Project

Agnico Eagle Mines Limited is proposing the construction, operation, decommissioning and restoration of a new open-pit gold mine located in the Dubuisson Sector of Val-d'Or, in Quebec. As proposed, the Marban Gold Mine Project would involve the operation of an open pit, waste rock and overburden stockpiles, and management and mine water treatment infrastructure. No ore processing or tailings storage facilities would be built on the Marban site. The project would have a maximum ore production capacity of 23,300 tonnes per day and a 9-year life span.

Please note that the proponent for this project was previously O3 Mining Inc. (2022 to March 18, 2025).

Latest update

October 29, 2026 — The Impact Assessment Agency of Canada decided that an impact assessment for the designated project is required and has issued its Impact Assessment Decision with Reasons.

At a glance

Planning

Planning

In progress 92/180 days

Key documents

Comment periods

Impact Statement

Impact Statement

Not started 0/1095 days
Impact Assessment

Impact Assessment

Not started 0/300 days
Decision Making

Decision Making

Not started 0/30 days
Post Decision

Post Decision phase is an ongoing process

If approved, the project may proceed to construction as federal authorizations and permits are issued, and as conditions and other requirements are met.

Post Decision

Not started

Participate

Contacts

Marban Gold Mine Project
Impact Assessment Agency of Canada
901-1550 Estimauville Avenue
Québec QC G1J 0C1
Telephone: 418-649-6444
Email: marban@iaac-aeic.gc.ca

Media Relations
Impact Assessment Agency of Canada
160 Elgin Street, 22nd Floor
Ottawa ON K1A 0H3
Email: media@iaac-aeic.gc.ca


Disclaimer

This map is for illustrative purposes. The markers represent the approximate locations based on available data. More than one marker may be identified for a given assessment.

  • Location

    • Val-d'Or (Quebec)

  • Nature of activity

    • Mines and Minerals

  • Assessment status

    In progress

  • Start date

    2022-12-01

  • Proponent

    Agnico Eagle Mines Limited

  • Authorities

    • Impact Assessment Agency of Canada

  • Assessment type

    Planning Phase for Impact Assessment

  • Reference number

    84117

Nearby assessments

...within 200 kilometres
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