EDM Announces Positive Results of the Dense Media Separation Study
Original announcement by tmx on
- Company
- EDM Resources Inc.
- Ticker
- EDM
- Exchange
- TSX
- Region
- Nova Scotia
- Primary commodity
- Zinc
- Secondary commodities
- Lead
- Document categories
- Metallurgy, Economic study
- Extracted
- 2026-09-19 21:05:10 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
EDM Resources Inc. has announced successful final results from its Dense Media Separation (DMS) pilot plant study at the Scotia Mine. The study demonstrated that DMS pre-concentration can increase zinc feed grades by 18.4% and lead feed grades by 33.5%, with high recoveries of 88.4% for zinc and 99.7% for lead, potentially reducing overall processing costs and improving project NPV.
Reasoning: The DMS pilot plant results demonstrate successful pre-concentration, significantly increasing feed grades and maintaining high recoveries, which directly supports project economics.
Positive factors
- Significant grade increase for both zinc and lead via DMS
- High recoveries achieved in pilot plant (88.4% Zn, 99.7% Pb)
- Potential for reduced processing costs and improved project NPV
- QA/QC supported by SGS Canada P.Eng/QP sign-off
Facts used in scoring: 4
Classification and evidence
High Recoverypositive
Recovery at or above the exceptional band for the commodity and processing route.
Why it applies: Zinc recovery of 88.4% and lead recovery of 99.7% are strong for the reported DMS/flotation route.
Evidence · text
“Recoveries of 88.4% of zinc and 99.7% of lead.”
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: The process involves DMS pre-concentration followed by a flotation circuit.
Evidence · text
“prior to flotation”
QP/CP Signedpositive · Story-specific tag
Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.
Why it applies: Curtis Mohns, P.Eng. from SGS Canada Inc. is named as the Qualified Person.
Evidence · text
“Mr. Curtis Mohns, P.Eng., Senior Metallurgist for SGS Canada Inc. and a Qualified Person as defined under NI43-101, has approved the technical information”
Gravity Routeneutral
Gravity separation forms a material part of the flowsheet.
Why it applies: the document describes a gravity route ("gravity")
Multi-Domain Testedpositive
Variability across ore domains (oxide, transition, fresh) has been addressed.
Why it applies: 2 distinct composites were tested
Extracted facts
Stored fact records: 4. Some facts used in scoring do not have a stored record.
Metallurgical Results (4)
pilot plantScotia Mine · zincRecovery: 88.4 %Head Grade: 3.98Head Grade Unit: %View all detailsHide details
Identity
- Project
- Scotia Mine
- Commodity
- zinc
- Region
- canada_ns
- Reported Region
- Nova Scotia
- Ticker
- EDM
Test Work
- Program Status
- detailed
- Test Type
- pilot plant
- Processing Route
- Dense Media Separation (DMS) prior to flotation
- Sample
- blended-grade mineralized zones, DMS pilot plant operation
Recovery
- Recovery
- 88.4 %
- Recovery Basis
- actual_test
- Head Grade
- 3.98
- Head Grade Unit
- %
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-08-11T00:00:00.000Z
Reasoning: 88.4% recovery in a DMS/flotation circuit is a strong result for pre-concentration.
Positive factors
- High recovery for DMS pre-concentration
Evidence · text
“The mass recovery to the flotation feed (sinks + fines) was 74.7%. The lead and zinc recoveries were 99.7% and 88.4%, respectively. The grades obtained were 0.58% Pb and 4.96% Zn.”
Tags used in scoring
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: processing_route matches the flotation signal
Gravity Routeneutral
Gravity separation forms a material part of the flowsheet.
Why it applies: processing_route matches the gravity signal
Pilot Scale Completepositive
Pilot or demonstration plant testing completed under continuous operation.
Why it applies: test_type names pilot-scale work
pilot plantScotia Mine · leadRecovery: 99.7 %Head Grade: 0.58Head Grade Unit: %View all detailsHide details
Identity
- Project
- Scotia Mine
- Commodity
- lead
- Region
- canada_ns
- Reported Region
- Nova Scotia
- Ticker
- EDM
Test Work
- Program Status
- detailed
- Test Type
- pilot plant
- Processing Route
- Dense Media Separation (DMS) prior to flotation
- Sample
- blended-grade mineralized zones, DMS pilot plant operation
Recovery
- Recovery
- 99.7 %
- Recovery Basis
- actual_test
- Head Grade
- 0.58
- Head Grade Unit
- %
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-08-11T00:00:00.000Z
Reasoning: 99.7% recovery is exceptional for the lead component.
Positive factors
- Near-total recovery of lead
Evidence · text
“The mass recovery to the flotation feed (sinks + fines) was 74.7%. The lead and zinc recoveries were 99.7% and 88.4%, respectively. The grades obtained were 0.58% Pb and 4.96% Zn.”
Tags used in scoring
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: processing_route matches the flotation signal
Gravity Routeneutral
Gravity separation forms a material part of the flowsheet.
Why it applies: processing_route matches the gravity signal
Pilot Scale Completepositive
Pilot or demonstration plant testing completed under continuous operation.
Why it applies: test_type names pilot-scale work
bench-scaleScotia Mine · zincRecovery: 97.3 %View all detailsHide details
Identity
- Project
- Scotia Mine
- Commodity
- zinc
- Region
- canada_ns
- Reported Region
- Nova Scotia
- Ticker
- EDM
Test Work
- Program Status
- scoping
- Test Type
- bench-scale
- Processing Route
- HLS (Heavy Liquid Separation)
- Sample
- high-grade mineralized zones, HLS Test T1
Recovery
- Recovery
- 97.3 %
- Recovery Basis
- actual_test
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-08-11T00:00:00.000Z
Reasoning: HLS is a bench-scale simulation of DMS.
Positive factors
- High HLS recovery
Evidence · text
“For HLS Test T1: At an optimal SG of 3.00, 76.5% of mass was retained, along with 97.3% of zinc and 99.4% of lead”
bench-scaleScotia Mine · leadRecovery: 99.4 %View all detailsHide details
Identity
- Project
- Scotia Mine
- Commodity
- lead
- Region
- canada_ns
- Reported Region
- Nova Scotia
- Ticker
- EDM
Test Work
- Program Status
- scoping
- Test Type
- bench-scale
- Processing Route
- HLS (Heavy Liquid Separation)
- Sample
- high-grade mineralized zones, HLS Test T1
Recovery
- Recovery
- 99.4 %
- Recovery Basis
- actual_test
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-08-11T00:00:00.000Z
Reasoning: HLS is a bench-scale simulation of DMS.
Positive factors
- High HLS recovery
Evidence · text
“For HLS Test T1: At an optimal SG of 3.00, 76.5% of mass was retained, along with 97.3% of zinc and 99.4% of lead”
How Atlas produces this analysis
Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.