What is the Marban Alliance Project

Carried out by O3 Mining, The Marban Alliance Project is a gold mining development project.

  • The project is located in the western portion of the province of Quebec, Canada, midway between the towns of Val-d’Or and Malartic ;
  • Current studies project a mine life of 9.6 years ;
  • Average annual production of 161,000 ounces ;
  • Estimated resources for Marban Alliance are 2.6 million ounces of gold.

To learn more about Marban Alliance

O3 Mining

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Community Investment Program

In keeping with our corporate values and mission, O3 Mining is committed to bringing long-term benefits to our host communities, thereby contributing to the prosperity of the regions where we operate.

Consult the full program

Listening to the community

As part of its commitment to respecting and collaborating with the community, O3 Mining wishes to maintain harmonious and constructive relations. The Responsible Exploration Program describes the company’s practices for avoiding and limiting potential impacts on the community and the environment.

Responsible Exploration Program


To ensure that best practices and corrective solutions are implemented as quickly and transparently as possible, O3 Mining has set up a process for handling requests and reports.

Requests and reports

Marban Alliance
an evolving project

Three pillars of the evolution of the project :

Technical optimisations

Public contributions

Environmental assessments

Useful Links

Discover our selection of additional resources to learn more about the Marban Alliance project.

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