Bayhorse Silver Submits Silver/Copper/Antimony Concentrate Samples From Its Bayhorse Silver Mine To Allihies Engineering For Antimony Leach Testing
Original announcement by tmx on
- Company
- Bayhorse Silver Inc
- Ticker
- BHS
- Exchange
- TSX
- Region
- Oregon, USA
- Primary commodity
- Silver
- Secondary commodities
- Copper, Antimony, Zinc, Gold, Lead
- Document categories
- Metallurgy
- Extracted
- 2026-08-21 05:22:43 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Bayhorse Silver has submitted flotation concentrate samples from its Bayhorse Silver Mine to Allihies Engineering for proprietary antimony leaching testing. If successful, this hydrometallurgical process could improve recoveries of silver, copper, and zinc while providing a cost-effective way to recover antimony, a strategic mineral.
Reasoning: The company is testing a new hydrometallurgical route to treat refractory concentrate, which could unlock significant value from antimony and improve silver/copper recoveries.
Positive factors
- Potential to unlock value from refractory antimony/silver/copper/zinc mineralization
- Use of proprietary ASL technology to avoid costly roasting
- Antimony is a strategic/critical mineral in the US
- Potential to significantly improve historical cost-benefit calculations
Negative factors
- Mineralization is refractory in nature
- Metallurgical testing is currently at the sample submission stage (not yet results-bearing for this specific test)
Facts used in scoring: 4
Classification and evidence
Refractory Orenegative
Ore requires oxidation/pressure treatment before recovery — a processing and recovery risk.
Why it applies: The document explicitly states the dominant mineralization is refractory in nature.
Evidence · text
“The dominant Bayhorse mineralization is primarily tetrahedrite... and is refractory in nature.”
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: The company mentions a standard flotation processing facility (mill) in Idaho.
Evidence · text
“The Company has established an up to 60 ton/day mill and standard flotation processing facility”
Extracted facts
Stored fact records: 4. Some facts used in scoring do not have a stored record.
Metallurgical Results (4)
Fact 1silverRecovery: 86.7 %Head Grade: 985Head Grade Unit: g/tHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- BHS
Test Work
- Sample
- 2020 Ore-Sorter select sample
Recovery
- Recovery
- 86.7 %
- Head Grade
- 985
- Head Grade Unit
- g/t
- Conc. Grade
- 9700
- Conc. Grade Unit
- g/t
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2020-01-01T00:00:00.000Z
Dates
- Event date
- 2025-10-16T00:00:00.000Z
Reasoning: Historical ore-sorter test result showing high silver grade in concentrate.
Positive factors
- High grade concentrate
Evidence · text
“In 2020, the Company conducted a metallurgical test on a 200 kg mined sample... head grade of 985 g/t (28.8 oz/t) silver”
Fact 2copperRecovery: 86.7 %Head Grade: 1.16Head Grade Unit: %Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- copper
- Ticker
- BHS
Test Work
- Sample
- 2020 Ore-Sorter select sample
Recovery
- Recovery
- 86.7 %
- Head Grade
- 1.16
- Head Grade Unit
- %
- Conc. Grade
- 10
- Conc. Grade Unit
- %
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2020-01-01T00:00:00.000Z
Dates
- Event date
- 2025-10-16T00:00:00.000Z
Reasoning: Historical ore-sorter test result showing copper enrichment in concentrate.
Positive factors
- Significant copper enrichment in concentrate
Evidence · text
“head grade of 985 g/t (28.8 oz/t) silver, 1.16% copper and 1.87% zinc”
Fact 3zincRecovery: 86.7 %Head Grade: 1.87Head Grade Unit: %Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- zinc
- Ticker
- BHS
Test Work
- Sample
- 2020 Ore-Sorter select sample
Recovery
- Recovery
- 86.7 %
- Head Grade
- 1.87
- Head Grade Unit
- %
- Conc. Grade
- 18
- Conc. Grade Unit
- %
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2020-01-01T00:00:00.000Z
Dates
- Event date
- 2025-10-16T00:00:00.000Z
Reasoning: Historical ore-sorter test result showing zinc enrichment in concentrate.
Positive factors
- Significant zinc enrichment in concentrate
Evidence · text
“head grade of 985 g/t (28.8 oz/t) silver, 1.16% copper and 1.87% zinc”
Fact 4antimonyHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- antimony
- Ticker
- BHS
Test Work
- Sample
- 2020 Ore-Sorter select sample
Recovery
- Conc. Grade
- 12
- Conc. Grade Unit
- %
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2020-01-01T00:00:00.000Z
Dates
- Event date
- 2025-10-16T00:00:00.000Z
Reasoning: Historical ore-sorter test result showing antimony in concentrate.
Positive factors
- Antimony present in concentrate
Evidence · text
“resulting in a silver grade of 9,700 g/t, 10% copper, 18% zinc and 12% antimony”
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.