At the Matawinie Mine, located 120 km north of Montréal, we are developing our flagship graphite property.  

  • Mine and concentrator to produce approximately 103,000 tpa of graphite concentrate 

  • Responsible, all-electric mining

  • 25-year mine life

  • Access to key infrastructure, including hydroelectricity and road network 

  • Design prioritizing environmental and social considerations

  • Extensive flake graphite mineralization generating 97% pure concentrate

Following a rigorous environmental review, the Québec government issued a ministerial decree authorizing the Matawinie mining project. Our plans incorporate sustainable development measures such as an integrated water management system, co-disposal of mine tailings, progressive site restoration and biodiversity protection, all of which have been acclaimed by government environmental experts. 

From mine development and eco-engineering to metallurgy and project management, NMG has assembled an experienced team to steer the construction and operation of the Matawinie Mine with respect for the environment and our community. 


In accordance with our COLLABORATIVE AND RESPONSIBLE APPROACH, NMG has launched numerous initiatives since the discovery of the Matawinie deposit to align the development of the Matawinie Mine with the realities, concerns, and values of the local community and the Atikamekw First Nation. 

  • More than 100 outreach activities to establish an open and constructive dialogue with local organizations, residents, cottage owners, and members of First Nations.
  • Creation of a monitoring committee to build trust with stakeholders throughout the mine development process and integrate their concerns and expectations into the project design.

  • Consultations as part of the Environmental and Social Impact Assessment and the Bureau d’audiences publiques sur l’environnement review to analyze residents’ perspectives and identify mitigation or improvement measures.

  • Framework and pre-development agreement with the Atikamekw First Nation with a view to signing an Impact and Benefit Agreement.

  • Ongoing dialogue with the community via our open-door office in the heart of the village of Saint-Michel-des-Saints, our Community Relations Manager, and our Indigenous Relations Manager.
  • Voluntary and proactive acquisition program for landowners within a 1-km radius of the mine site. To date, agreements have been reached with all interested parties.

  • Operating hours adapted to the tourism context and optimized site layout.
  • Participation in structuring initiatives, community campaigns, and regional activities in collaboration with local partners.
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Des étudiantes de l'école secondaire prennent la pose avec un intervenant du domaine minier.


We aspire to CREATE VALUE in our communities. That’s why we support local socio-economic development, encourage social dialogue, and collaborate with other organizations to exchange ideas and services. 

NMG has imagined a land integration plan to enhance the area around the mining site and enhance the region’s tourism and educational offering. Plans include 35 kilometers of multi-use trails, a graphite interpretation center with industrial tours, a mine site observation point, a cultural café, and the development of spaces near the project. We have created a non-profit organization, Espace nature Haute-Matawinie, to roll out this structuring project. 

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NMG has pledged to contribute 1% of its net after-tax cash flow from the Matawinie Mine to the COMMUNITY FUND FOR THE FUTURE, which will serve as a catalyst for structuring projects with a social, economic, and environmental scope in Haute-Matawinie. The fund, which will be administered by a fiduciary organization, will promote economic sustainability and community vitality beyond the mine’s operating life. 

An executive is giving a handshake to a young sponsored man.

Through our DONATION AND SPONSORSHIP program, we support the socio-economic development and well-being of our communities, as well as initiatives aligned with our corporate values and sustainable development objectives 


Our Phase1 operations have enabled us to optimize our processes, qualify our products with battery and electric vehicle manufacturers, train our employees, and advance the detailed engineering of our Phase2 commercial facilities. 


Preparatory work on the industrial platform, access road and environmental infrastructure began in 2021. 

  • A nearly 8-km access road now links the mining site directly to Highway 131. The access road was rerouted away from residential zones in response to concerns expressed during community consultations and BAPE sessions.
  • The work is being carried out in accordance with social and natural environmental protection measures, respecting the parameters defined in the government decree and permits.
  • Detailed engineering, procurement activities, construction planning, and electrification development are progressing in parallel.
Information Mine Matawinie


In order to protect the environment and the well-being of the community, NMG has developed an environmental surveillance and monitoring to oversee the construction, operation, and closure activities of the Matawinie Mine. 

We follow-up on and disclose our environmental commitments and conditions via a summary document updated twice a year, in accordance with the analysis and authorization procedure of the Quebec Ministry of the Environment and the Fight against Climate Change. 


Access road construction, civil works for site preparation 


Clearing and preparation of water management infrastructure 


Construction of industrial infrastructure 


Installation of the water treatment plant (commercial phase) and construction of the industrial buildings 


Construction of mining infrastructure; electrical and mechanical works for industrial buildings 


Facilities commissioning 

NMG wants to ensure a harmonious cohabitation with the community and our stakeholders. We recognize that our activities can generate impacts, both negative and positive, and propose concrete tools to ensure a feedback mechanism with stakeholders. 

  • This field is for validation purposes and should be left unchanged.

Since 2017, a MONITORING COMMITTEE, composed of local citizens, members of First Nations, business representatives and local organizations, has been assisting NMG in the development of the Matawinie project. It ensures that the implementation of the project respects the milieu, minimizes environmental impacts, and integrates the concerns and expectations of the community. 

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Isabelle Levasseur

Manager Community Relations

Kelly LeBlanc

Manager Indigenous Relations


NMG is committed to maximizing the local and regional benefits associated with the development of our projects, through training, employment, and business opportunities, particularly as set out in our pre-development agreement with the Atikamekw First Nation and the collaboration and benefit sharing agreement with the municipality of Saint-Michel-des-Saints. 

To this end, procurement is managed through a centralized process that strives to ensure compliance with NMG’s environmental, quality, and health and safety programs. 


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