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Tansim open pit lithium mine project, Canada

On the unceded territory of Long Point First Nation, the project is part of the wider objective of creating a "lithium pole" in Abitibi-Témiscamingue and in Nord-du-Québec. The first nation officially asked the government to suspend the project.


The Tansim open pit lithium mine project is located on the unceded ancestral territory of the community of Long Point First Nation (LPFN) of the Anicinabe First Nation, which counts over 800 members. This territory is included in the municipality of Moffet in Témiscamingue, in the province of Quebec, in Canada [1].

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Basic Data
Name of conflict:Tansim open pit lithium mine project, Canada
State or province:Témiscamingue, Québec
Location of conflict:Moffet municipality
Accuracy of locationHIGH (Local level)
Source of Conflict
Type of conflict. 1st level:Mineral Ores and Building Materials Extraction
Type of conflict. 2nd level:Water access rights and entitlements
Wetlands and coastal zone management
Mineral ore exploration
Tailings from mines
Pollution related to transport (spills, dust, emissions)
Specific commodities:Lithium
Project Details and Actors
Project details

Located 82 kilometres south‐west of Sayona’s Authier project, Tansim hosts pegmatites at the Viau and Viau‐Dallaire prospects which were first identified in the 1950s. These deposits remained little explored until Sayona’s involvement in the project in January 2018. Since then, Sayona has consolidated and expanded the project claims so that they now represent the largest contiguous tenure any company has ever assembled in the area: includes 350 claims covering more than 20,250 hectares along the north shore of Lake Simar [3] [8].

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Project area:20,250
Level of Investment for the conflictive projectN/A
Type of populationRural
Affected Population:800 (Community of Long Point First Nation of the Anishinabe people)
Start of the conflict:12/05/2021
Company names or state enterprises:Sayona Mining Limited from Australia - Mother company
Sayona Québec inc. from Canada - Subsidiary company
Relevant government actors:Ministère de l'Environnement et de la Lutte contre les changements climatiques (MELCC)
Ministère de l’Énergie et des Ressources naturelles (MERN)
Environmental justice organizations (and other supporters) and their websites, if available:Conseil de Long Point First Nation
Conflict & Mobilization
IntensityMEDIUM (street protests, visible mobilization)
Reaction stagePREVENTIVE resistance (precautionary phase)
Groups mobilizing:Indigenous groups or traditional communities
Community of Long Point First Nation of the Anishinabe people
Forms of mobilization:Public campaigns
Environmental ImpactsPotential: Air pollution, Biodiversity loss (wildlife, agro-diversity), Food insecurity (crop damage), Global warming, Loss of landscape/aesthetic degradation, Noise pollution, Soil contamination, Soil erosion, Oil spills, Surface water pollution / Decreasing water (physico-chemical, biological) quality, Groundwater pollution or depletion, Large-scale disturbance of hydro and geological systems, Reduced ecological / hydrological connectivity, Mine tailing spills
Socio-economical ImpactsPotential: Displacement, Loss of livelihood, Loss of traditional knowledge/practices/cultures, Specific impacts on women, Violations of human rights, Land dispossession, Loss of landscape/sense of place
Project StatusPlanned (decision to go ahead eg EIA undertaken, etc)
Conflict outcome / response:Under negotiation
Do you consider this an environmental justice success? Was environmental justice served?:Not Sure
Sources & Materials

[1] Sayona Mining, Carte Tansim
[click to view]

[2] Sayona Mining, Communiqué de presse, 29 septembre 2021
[click to view]

[3] Gouvernement du Québec, Ministère de l’Énergie et des Ressources naturelles, GESTIM Plus : Gestion des titres miniers
[click to view]

[4] Long Point First Nation, Communiqué de presse, Exploration Minière de Sayona au Témiscamingue : Long Point First Nation Demande la Suspension Immédiate du Projet Tansim, 13 mai 2021
[click to view]

[5] Pétition Stop the Sayona Lithium Mine on Lac Simard
[click to view]

[6] CBC; Electric cars are booming. But what are the environmental costs of all those batteries?; 28 May 2021
[click to view]

[7] Radio Canada; La Première Nation de Long Point s’inquiète des possibles impacts du projet minier Tansim; 30 octobre 2021
[click to view]

[click to view]

[9] Sayona Quebec; Projet Tansim
[click to view]

Mining Watch - 13 May 2021

Sayona Mining Exploration in Témiscamingue: Long Point First Nation Asks Government to Immediately Suspend the Tansim Project
[click to view]

Long Point First Nation Demande la Suspension Immédiate du Projet Tansim

Mardi 18 mai 2021
[click to view]

CBC Radio - Electric cars are booming. But what are the environmental costs of all those batteries?

May 28, 2021

The EV surge comes with environmental trade-offs, but some Canadian upstarts are doing things differently

Jennifer Van Evra
[click to view]

GM 60480

[click to view]

Financial Post - As lithium booms again, new players hope to avoid 'horror' show of predecessors

Gabriel Friedman

July 21, 2021
[click to view]

Related media links to videos, campaigns, social network petition - STOP THE SOYONA LITHIUM MINE ON LAC SIMARD - LONG POINT FIRST NATION
[click to view]

Meta information
Contributor:Rodrigue Turgeon, co-porte-parole Comité citoyen de protection de l'esker (CCPE), Marc Nantel, porte-parole Regroupement Vigilance Mines de l'Abitibi et du Témiscamingue (REVIMAT)
Last update27/10/2021
Conflict ID:5681
Legal notice / Aviso legal
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