Supply Chain Safety: Western Powers Race for Domestic Mineral Sovereignty
Original announcement by tmx on
- Company
- Hercules Metals
- Ticker
- BIG
- Exchange
- TSX
- Region
- Idaho
- Primary commodity
- Copper
- Secondary commodities
- Silver, Molybdenum
- Document categories
- Drill results, Resource update, Other
- Extracted
- 2026-09-13 14:45:01 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Hercules Metals reported significant copper and silver mineralization at its Leviathan porphyry system in Idaho. The drill results showed increasing grades at depth, coinciding with a newly identified magnetotelluric anomaly that suggests potential for expansion.
Reasoning: Hercules Metals reported significant copper-silver intercepts at its Leviathan porphyry system, with grades increasing at depth and a new MT anomaly suggesting expansion potential.
Positive factors
- significant copper mineralization
- increasing grades at depth
- linked to magnetotelluric anomaly
- expansion potential into new zones
Facts used in scoring: 4
Classification and evidence
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: The northern cluster of drill holes terminated in increasing grades at depth, linked to a newly identified magnetotelluric anomaly representing a potential expansion target.
Evidence · text
“linked to a newly identified magnetotelluric anomaly that represents a potential northeast expansion target”
Extracted facts
Stored fact records: 4. Some facts used in scoring do not have a stored record.
Drill Results (4)
HER-25-17Leviathan · copperGrade: 0.6Grade Unit: %Intercept: 420 mView all detailsHide details
Identity
- Hole ID
- HER-25-17
- Project
- Leviathan
- Commodity
- copper
- Region
- usa_id
- Reported Region
- usa_id
- Ticker
- BIG
Geometry
- Grade
- 0.6
- Grade Unit
- %
- Intercept
- 420 m
Classification
- Sample Type
- drill
- Group ID
- HER-25-17:0-420
- Mining Method
- open_pit
QA/QC
- QP Signed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-06T00:00:00.000Z
Reasoning: 420m intercept at 0.60% Cu is a significant width for a porphyry system.
Positive factors
- significant copper mineralization
Evidence · text
“420 metres grading 0.60% copper”
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
HER-25-17Leviathan · silverGrade: 6Grade Unit: g/tIntercept: 420 mView all detailsHide details
Identity
- Hole ID
- HER-25-17
- Project
- Leviathan
- Commodity
- silver
- Region
- usa_id
- Reported Region
- usa_id
- Ticker
- BIG
Geometry
- Grade
- 6
- Grade Unit
- g/t
- Intercept
- 420 m
Classification
- Sample Type
- drill
- Group ID
- HER-25-17:0-420
- Mining Method
- open_pit
QA/QC
- QP Signed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-06T00:00:00.000Z
Reasoning: 6 g/t silver reported alongside copper.
Positive factors
- silver credits
Evidence · text
“6 g/t silver”
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
HER-25-17Leviathan · copperGrade: 1.38Grade Unit: %Intercept: 113 mView all detailsHide details
Identity
- Hole ID
- HER-25-17
- Project
- Leviathan
- Commodity
- copper
- Region
- usa_id
- Reported Region
- usa_id
- Ticker
- BIG
Geometry
- Grade
- 1.38
- Grade Unit
- %
- Intercept
- 113 m
Classification
- Sample Type
- drill
- Group ID
- HER-25-17:0-420
- Mining Method
- open_pit
QA/QC
- QP Signed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-06T00:00:00.000Z
Reasoning: 113m at 1.38% Cu is a strong high-grade component of the main intercept.
Positive factors
- high-grade sub-interval
Evidence · text
“113 metres of 1.38% copper”
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
HER-25-17Leviathan · silverGrade: 14Grade Unit: g/tIntercept: 113 mView all detailsHide details
Identity
- Hole ID
- HER-25-17
- Project
- Leviathan
- Commodity
- silver
- Region
- usa_id
- Reported Region
- usa_id
- Ticker
- BIG
Geometry
- Grade
- 14
- Grade Unit
- g/t
- Intercept
- 113 m
Classification
- Sample Type
- drill
- Group ID
- HER-25-17:0-420
- Mining Method
- open_pit
QA/QC
- QP Signed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-06T00:00:00.000Z
Reasoning: 14 g/t silver in the high-grade sub-interval.
Positive factors
- silver credits
Evidence · text
“14 g/t silver”
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
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.