Rose Lithium-Tantalum Mining Project

Critical Elements Corporation is proposing the construction, operation and decommissioning of an open pit lithium and tantalum mine located approximately 38 kilometres north of Nemaska, in Quebec. As proposed, the project includes the operation of an open pit, waste and tailings impoundment area, an industrial ore processing facility and the option of transforming concentrate off-site. The mine would produce about 4,500 tonnes of ore per day over a 17-year life span. The project would last 26 years in total with the construction and restoration phases.


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.

Latest update

April 17, 2021 — The public comment period on the draft Environmental Assessment Report and draft potential conditions is closed. The Joint Committee is considering comments received in order to finalize the Environmental Assessment Report and potential conditions that will be submitted to the Minister of Environment and Climate Change.


March 5, 2021 — On March 4, 2021, the Minister of Environment and Climate Change has extended the time limit for the issuance of the Environmental Assessment Decision Statement by 90 days.


Key documents

Key documents
Document Number Document Title File Date
39 Draft Potential Conditions PDF (845 KB) March 17, 2021
38 Draft Environmental Assessment Report PDF (10.4 MB) March 17, 2021
17 Summary of the Environmental Impact Statement PDF (4.7 MB) February 18, 2019
18 Étude d'impact environnemental (French Only) - March 19, 2018
11 Final Environmental Impact Statement Guidelines PDF (1.2 MB) December 27, 2012
5 Notice of Environmental Assessment Determination - October 22, 2012
4 Summary of the Project Description of a Designated Project (Revised on September 11, 2012) PDF (2.6 MB) September 6, 2012

List all records


Rose Lithium - Tantalum Mining Project
Impact Assessment Agency of Canada
901-1550, d'Estimauville Avenue
Québec, Quebec G1J 0C1
Telephone: 418-649-6444
Fax: 418-649-6443

  • Location

    • Municipality of Baie-James (Quebec)
  • Nature of Activity

    • Mines and Minerals
  • Assessment Status

    In progress
  • Start Date

  • Proponent

    Criticals Elements Corporation (CEC)
  • Authorities

    • Impact Assessment Agency of Canada
  • Assessment Type

    Environmental assessment under CEAA 2012
  • Reference Number

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