Nouveau Monde Graphite lease milestone: design and ESG notes for mine planners
Reviewed by Joe Ashwell

First reported on MINING.com
30 Second Briefing
Nouveau Monde Graphite has secured Mining Lease No. 1057 from Quebec’s Ministry of Natural Resources and Forests for its Matawinie project, granting rights to mine the Metawinie graphite deposit about 120 km north of Montreal. The open-pit operation is planned to produce up to 106,000 tonnes of graphite concentrate per year, positioning it as the largest graphite mine in the G7, and follows a 2021 BAPE environmental and social impact authorisation plus an Impact Benefit Agreement with the Atikamekw First Nation of Manawan. Construction-phase measures include onsite water reuse, biodiversity protection and co-disposal of tailings and waste rock, although MiningWatch Canada has raised concerns over reported heavy metal concentrations in nearby waterways.
Technical Brief
- Environmental and social impact authorisation was granted in 2021 by Quebec’s BAPE public hearings board.
- Construction-phase controls include onsite water reuse to limit freshwater abstraction and manage contact water volumes.
- Biodiversity protection commitments imply habitat management and disturbance minimisation around the Metawinie footprint during early works.
- Co-disposal of tailings and waste rock is planned, affecting geochemical behaviour, seepage pathways and long-term stability design.
- An Impact Benefit Agreement embeds Atikamekw First Nation participation in environmental monitoring and the project’s monitoring committee.
- MiningWatch Canada cites reported elevated heavy metal concentrations in nearby waterways, signalling potential need for tighter water-quality monitoring.
Our Take
Nouveau Monde Graphite already features in coverage of Canada–Italy critical minerals ties, where an offtake-linked investment by Eni signals that regulatory de-risking at Matawinie and the Bécancour battery material plant directly underpins European supply-chain strategies for graphite.
Our database shows Matawinie as one of the few Canadian critical-mineral mines fast-tracked through the federal Major Projects Office, so the Quebec mining lease (no. 1057) further narrows residual permitting risk and should make it easier for NMG to unlock additional public finance from entities like Export Development Canada and the Canada Infrastructure Bank cited in earlier pieces.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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