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
- Extracted
- 2026-08-21 07:33:16 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
EDM Resources Inc. has announced positive results from its Dense Media Separation (DMS) pilot plant study at the Scotia Mine. The study demonstrated that DMS can pre-concentrate ore, increasing zinc and lead feed grades by 18.4% and 33.5% respectively, while maintaining high recoveries.
Reasoning: The DMS pilot plant successfully demonstrated significant grade upgrades (18.4% Zn, 33.5% Pb) and high recoveries (88.4% Zn, 99.7% Pb), which directly supports project economics through cost reduction and increased throughput.
Positive factors
- Significant grade increase for both primary and secondary metals
- High recoveries achieved via DMS pre-concentration
- Potential for significant reduction in processing costs and waste
- Pilot plant results validate bench-scale HLS tests
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 and lead recoveries in the DMS pilot plant (88.4% and 99.7%) are very high for a pre-concentration step.
Evidence · text
“The lead and zinc recoveries were 99.7% and 88.4%, respectively.”
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: The process involves DMS followed by a grinding and flotation circuit.
Evidence · text
“A DMS plant could be added prior to the Flotation Circuit in the existing processing building.”
Extracted facts
Stored fact records: 4. Some facts used in scoring do not have a stored record.
Metallurgical Results (4)
pilot plantzincRecovery: 88.4 %Head Grade: 4.96Head Grade Unit: %View all detailsHide details
Identity
- Commodity
- zinc
- Ticker
- EDM
Test Work
- Program Status
- detailed
- Test Type
- pilot plant
- Processing Route
- Dense Media Separation (DMS) prior to flotation
- Sample
- DMS pilot plant operation (sinks + fines)
Recovery
- Recovery
- 88.4 %
- Head Grade
- 4.96
- Head Grade Unit
- %
Lab
- Laboratory
- SGS
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-08-11T00:00:00.000Z
Reasoning: 88.4% recovery at a significantly higher grade (4.96% vs original head grade) is a strong economic signal.
Positive factors
- High recovery for a pre-concentration step
- Significant grade upgrade
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.”
pilot plantleadRecovery: 99.7 %Head Grade: 0.58Head Grade Unit: %View all detailsHide details
Identity
- Commodity
- lead
- Ticker
- EDM
Test Work
- Program Status
- detailed
- Test Type
- pilot plant
- Processing Route
- Dense Media Separation (DMS) prior to flotation
- Sample
- DMS pilot plant operation (sinks + fines)
Recovery
- Recovery
- 99.7 %
- Head Grade
- 0.58
- Head Grade Unit
- %
Lab
- Laboratory
- SGS
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-08-11T00:00:00.000Z
Reasoning: 99.7% recovery is exceptional for a pre-concentration stage.
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.”
gravityzincRecovery: 97.3 %View all detailsHide details
Identity
- Commodity
- zinc
- Ticker
- EDM
Test Work
- Program Status
- detailed
- Test Type
- gravity
- Sample
- HLS Test T1 (bench-scale)
Recovery
- Recovery
- 97.3 %
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-08-11T00:00:00.000Z
Reasoning: Bench-scale HLS results provide the technical basis for the pilot plant success.
Positive factors
- High recovery in bench-scale testing
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”
gravityleadRecovery: 99.4 %View all detailsHide details
Identity
- Commodity
- lead
- Ticker
- EDM
Test Work
- Program Status
- detailed
- Test Type
- gravity
- Sample
- HLS Test T1 (bench-scale)
Recovery
- Recovery
- 99.4 %
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-08-11T00:00:00.000Z
Reasoning: Bench-scale HLS results provide the technical basis for the pilot plant success.
Positive factors
- High recovery in bench-scale testing
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.