Property Size and Location

Comprised of 534 individual mineral claims covering a total area of approximately 23,230 hectares approximately 1,100 km northeast of Quebec City, Quebec


100% owned by Quest.

Project Economics



Initial Capex

$1.631 billion


$1.416 billion


5.3 years

Project Logistics

Materials mined at Strange Lake, physically upgraded by a floatation concentrator located on site, trucked to Nain for shipment via the St. Lawrence River to Bécancour. The upgraded mineral concentrate will be processed at Quest’s proposed hydrometallurgical plant at Bécancour, Quebec, and then separated into individual rare earth oxides


Separated rare earth oxides


The Strange Lake project will employ a total of 689 employees, comprised of 306 employees at the mine site, 342 at the processing plant in southern Québec and 41 for general administration

Project Revenue

The project will generate on average $758 million of
revenue per year, comprised of 78% from the sale of
heavy rare earths and yttrium

Cash Operating Costs

Average $357 million per year, $232 per/t milled.

Mine Type

Simple Open Pit

Projected Mine Life

30 years


Project Location

Strange Lake Map


Quest Rare Minerals Ltd. is pleased to announce the completion of its PEA, Quest’s revised and substantially improved development plan for its Strange Lake Rare Earth Project

Quest remains convinced that this Made in Canada project has the potential to provide an important base for establishing a major new North American industrial sector of global importance, and helps to address the market demand for a non-Chinese supply of these critical elements.

- The development plan outlined in the PEA significantly reduces required capital expenditure, simplifies the process flow sheet, and reduces the project environmental footprint, all of which enhances the long-term viability of the project.

Preliminary Economic Results
  PEA Results Summary
PEA Results Presentation
PEA Results Conference Call
43-101 Report, PEA Results (April 9, 2014)
43-101 Report, Updated Mineral Resource Estimate (March 8, 2017)

Strange Lake Project Preliminary Economic Assessment Highlights

The technical information contained in this presentation relating to the Strange Lake Rare Earth Project has been reviewed and approved by Mr. Peter Cashin, P. Geo., President and CEO of Quest, a qualified person for the purposes of National Instrument 43-101 Standards of Disclosure for Mineral Projects. For additional information on the Strange Lake Rare Earth Project, see the technical report entitled “NI 43-101 Technical Report on the Preliminary Economic Assessment (PEA) for the Strange Lake Property Quebec, Canada” dated April 9, 2014, as amended on June 26, 2014 with an effective date of April 9, 2014 for the preliminary economic assessment study and an effective date of August 31, 2012 for the Resource Estimate (the “2014 Technical Report”).  The 2014 Technical Report is available under the Corporation’s profile on SEDAR at www.sedar.com.”

Mineral Resources

In October 2012, Quest revised its resource estimate, doubling the tonnage for Strange Lake, B-Zone REE deposit

“The mineral resources at B Zone occur near to surface and are amenable to conventional open pit mining methods. An economic cut-off base case grade of 0.5% TREO was considered appropriate for reporting the mineral resources.

Indicated Mineral Resources are estimated at 278.13 Mt at 0.93% TREO. Inferred Mineral Resources are estimated at 214.35 Mt at 0.85% TREO. Table 1.1 shows a breakdown of the mineral resource estimate above a 0.50% TREO cut-off grade.


Table 1.1 - B Zone Mineral Resources above 0.50% TREO Cut-off Grade

Mineral resources which are not mineral reserves do not have demonstrated economic viability. The estimate of mineral resources may be materially affected by environmental, permitting, legal, title, taxation, sociopolitical, marketing, or other relevant issues. However, it is Micon’s opinion, the author of the 2014 Technical Report, that no known environmental, permitting, legal, title, taxation, socio-economic, marketing or political issues exist that would adversely affect the mineral resources presented above.

The quantity and grade of reported inferred resources in this estimation are conceptual in nature and there has been insufficient exploration to define these inferred resources as an indicated or measured mineral resource and it is uncertain if further exploration will result in upgrading them to an indicated or measured mineral resource category.

The preliminary economic assessment contain in the 2014 Technical Report is preliminary in nature; it includes inferred mineral resources that are considered too speculative geologically to have the economic considerations applied to them that would enable them to be categorized as mineral reserves, and there is no certainty that the preliminary economic assessment will be realized.

The effective date of the mineral resource estimate is August 31, 2013. The estimate was disclosed in the previously filed Technical Report dated December 14, 2013, a copy of which is available under Quest’s profile on SEDAR.”