Why Minto Is Adding a Gravity Circuit Its Last Operator Turned Off
Original announcement by cruxinvestor on
- Company
- Selkirk Copper Mines
- Ticker
- SCMI
- Exchange
- Unavailable
- Region
- Yukon
- Primary commodity
- Copper
- Secondary commodities
- Gold, Silver
- Document categories
- Metallurgy
- Extracted
- 2026-09-03 15:20:31 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Selkirk Copper intends to add two gravity concentrators to its restart circuit at the former Minto mine to capture gold and silver that were previously bypassed due to a third-party stream. Management expects this change to increase gold and silver recoveries by approximately 10% each.
Reasoning: The company is planning to add gravity recovery to capture precious metals previously lost to a third-party stream, which could significantly improve project economics.
Positive factors
- removal of precious metal stream increases company exposure
- planned gravity circuit addition to boost gold/silver recovery
- completed metallurgical test work supports the change
Negative factors
- no capital cost or decision date stated for new equipment
- intent to add equipment is not a firm commitment
Facts used in scoring: 3
Classification and evidence
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: The article discusses changes to a processing plant/mill circuit.
Evidence · text
“Minto's mill averaged a copper recovery”
High Recoverypositive
Recovery at or above the exceptional band for the commodity and processing route.
Why it applies: Historical copper recovery of 91% is high for a mill route.
Evidence · text
“copper recovery of around 91%”
Extracted facts
Stored fact records: 3. Some facts used in scoring do not have a stored record.
Metallurgical Results (3)
Fact 1copperRecovery: 91 %View all detailsHide details
Identity
- Commodity
- copper
- Ticker
- SCMI
Test Work
- Sample
- Minto mill life-of-mine average
Recovery
- Recovery
- 91 %
- Recovery Basis
- actual_test
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-03T00:00:00.000Z
Reasoning: Historical life-of-mine average copper recovery.
Positive factors
- high recovery attributed to coarse-grained sulfide minerals
Evidence · text
“Minto's mill averaged a copper recovery of around 91% over the life of the mine”
gravitygoldRecovery: 10 %View all detailsHide details
Identity
- Commodity
- gold
- Ticker
- SCMI
Test Work
- Program Status
- detailed
- Test Type
- gravity
- Sample
- Proposed gravity circuit addition
Recovery
- Recovery
- 10 %
- Recovery Basis
- actual_test
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-03T00:00:00.000Z
Reasoning: Expected incremental recovery increase from adding gravity concentrators.
Positive factors
- potential 10% recovery increase
Evidence · text
“would probably raise gold and silver recovery by about 10% each”
gravitysilverRecovery: 10 %View all detailsHide details
Identity
- Commodity
- silver
- Ticker
- SCMI
Test Work
- Program Status
- detailed
- Test Type
- gravity
- Sample
- Proposed gravity circuit addition
Recovery
- Recovery
- 10 %
- Recovery Basis
- actual_test
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-03T00:00:00.000Z
Reasoning: Expected incremental recovery increase from adding gravity concentrators.
Positive factors
- potential 10% recovery increase
Evidence · text
“would probably raise gold and silver recovery by about 10% each”
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.