Aston Bay Files Technical Report for Storm Copper Project Initial Mineral Resource Estimate

Original announcement by tmx on

Company
Aston Bay Holdings Ltd.
Ticker
BAY
Exchange
TSX
Region
Nunavut, Canada
Primary commodity
Copper
Secondary commodities
Silver
Document categories
Resource update
Extracted
2026-09-13 15:01:11 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Aston Bay has filed an initial NI 43-101 Technical Report for the Storm Copper Project, detailing a Mineral Resource Estimate of 8.2 Mt Indicated and 3.3 Mt Inferred at 1.47% Cu and 3.1 g/t Ag respectively. The resource is primarily near-surface and accessible via open-pit mining, with all six deposits remaining open for expansion.

Reasoning: Initial Mineral Resource Estimate (MRE) for the Storm Copper Project establishes a substantial copper-silver resource with high-grade near-surface zones and significant expansion potential.

Positive factors

  • High-grade near-surface copper resource
  • All six deposits remain open
  • Excellent beneficiation potential confirmed by metallurgical testwork
  • Significant growth potential with <5% of copper belt explored

Negative factors

  • Large Inferred component (approx 30% of total tonnage)

Facts used in scoring: 28

Classification and evidence

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: The report is explicitly stated as a National Instrument 43-101 Technical Report.

Evidence · text

“new National Instrument 43-101 ("NI 43-101") Technical Report”

Maiden Resourceneutral

First formal MRE for the project — establishes baseline but typically exploration-stage with high Inferred component. No prior estimate exists, so every change band is not applicable.

Why it applies: The document describes an 'initial Mineral Resource Estimate'.

Evidence · text

“details an initial Mineral Resource Estimate ("MRE")”

QP/CP Signedpositive

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: Yungang Wu, M.Sc., P.Geo. is named as the Qualified Person responsible for the MRE.

Evidence · text

“Yungang Wu, M.Sc., P.Geo. of P&E Mining Consultants Inc. is the Qualified Person”

Extracted facts

Stored fact records: 28. Some facts used in scoring do not have a stored record.

Resource Estimates (28)

indicatedStorm Copper Project · copperTonnes: 712000Grade: 2.07Grade Unit: %View all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
copper
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:591bfac7d5e43e1f4127
Deposit or zone
Chinook
Mining method
combined
Material type
fresh
Resource basis
gross

Resource Data

Category
indicated
Tonnes
712000
Grade
2.07
Grade Unit
%
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: High grade indicated resource in Chinook zone.

Positive factors

  • High grade intercept

Evidence · table

“2.07”

Context: 712

Tags used in scoring

Cut-off Lowerednegative

Cut-off grade reduced beyond the suspicious bound vs prior estimate — tonnage growth may be artificial inflation.

Why it applies: Open pit constrained Mineral Resources are reported within the constraining pit shells, applying a lower cut-off grade of 0.35% Cu.

Evidence · text

“Open pit constrained Mineral Resources are reported within the constraining pit shells, applying a lower cut-off grade of 0.35% Cu.”

Context: Storm Copper Project, Nunavut

Indicated Resourcepositive

Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.

Why it applies: category is "indicated"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

indicatedStorm Copper Project · silverTonnes: 712000Grade: 4.36Grade Unit: g/tView all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
silver
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:591bfac7d5e43e1f4127
Deposit or zone
Chinook
Mining method
combined
Material type
fresh
Resource basis
gross

Resource Data

Category
indicated
Tonnes
712000
Grade
4.36
Grade Unit
g/t
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: Silver byproduct in Chinook zone.

Evidence · table

“4.36”

Context: 712

Tags used in scoring

Cut-off Lowerednegative

Cut-off grade reduced beyond the suspicious bound vs prior estimate — tonnage growth may be artificial inflation.

Why it applies: Open pit constrained Mineral Resources are reported within the constraining pit shells, applying a lower cut-off grade of 0.35% Cu.

Evidence · text

“Open pit constrained Mineral Resources are reported within the constraining pit shells, applying a lower cut-off grade of 0.35% Cu.”

Context: Storm Copper Project, Nunavut

Indicated Resourcepositive

Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.

Why it applies: category is "indicated"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

indicatedStorm Copper Project · copperTonnes: 7073000Grade: 1.41Grade Unit: %View all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
copper
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:3dec69390f7f4d43c492
Deposit or zone
Cyclone
Mining method
combined
Material type
fresh
Resource basis
gross

Resource Data

Category
indicated
Tonnes
7073000
Grade
1.41
Grade Unit
%
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: Large indicated copper resource in Cyclone zone.

Evidence · table

“1.41”

Context: 7,073

Tags used in scoring

Cut-off Lowerednegative

Cut-off grade reduced beyond the suspicious bound vs prior estimate — tonnage growth may be artificial inflation.

Why it applies: Open pit constrained Mineral Resources are reported within the constraining pit shells, applying a lower cut-off grade of 0.35% Cu.

Evidence · text

“Open pit constrained Mineral Resources are reported within the constraining pit shells, applying a lower cut-off grade of 0.35% Cu.”

Context: Storm Copper Project, Nunavut

Indicated Resourcepositive

Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.

Why it applies: category is "indicated"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

indicatedStorm Copper Project · silverTonnes: 7073000Grade: 4.5Grade Unit: g/tView all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
silver
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:3dec69390f7f4d43c492
Deposit or zone
Cyclone
Mining method
combined
Material type
fresh
Resource basis
gross

Resource Data

Category
indicated
Tonnes
7073000
Grade
4.5
Grade Unit
g/t
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: Silver byproduct in Cyclone zone.

Evidence · table

“4.50”

Context: 7,073

Tags used in scoring

Cut-off Lowerednegative

Cut-off grade reduced beyond the suspicious bound vs prior estimate — tonnage growth may be artificial inflation.

Why it applies: Open pit constrained Mineral Resources are reported within the constraining pit shells, applying a lower cut-off grade of 0.35% Cu.

Evidence · text

“Open pit constrained Mineral Resources are reported within the constraining pit shells, applying a lower cut-off grade of 0.35% Cu.”

Context: Storm Copper Project, Nunavut

Indicated Resourcepositive

Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.

Why it applies: category is "indicated"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

indicatedStorm Copper Project · copperTonnes: 444000Grade: 1.45Grade Unit: %View all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
copper
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:840f5c034ec5889f2c83
Deposit or zone
Cyclone
Mining method
combined
Material type
fresh
Resource basis
gross

Resource Data

Category
indicated
Tonnes
444000
Grade
1.45
Grade Unit
%
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: Indicated underground resource in Cyclone.

Evidence · table

“1.45”

Context: 444

Tags used in scoring

Cut-off Lowerednegative

Cut-off grade reduced beyond the suspicious bound vs prior estimate — tonnage growth may be artificial inflation.

Why it applies: Open pit constrained Mineral Resources are reported within the constraining pit shells, applying a lower cut-off grade of 0.35% Cu.

Evidence · text

“Open pit constrained Mineral Resources are reported within the constraining pit shells, applying a lower cut-off grade of 0.35% Cu.”

Context: Storm Copper Project, Nunavut

Indicated Resourcepositive

Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.

Why it applies: category is "indicated"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

indicatedStorm Copper Project · silverTonnes: 444000Grade: 4.42Grade Unit: g/tView all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
silver
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:840f5c034ec5889f2c83
Deposit or zone
Cyclone
Mining method
combined
Material type
fresh
Resource basis
gross

Resource Data

Category
indicated
Tonnes
444000
Grade
4.42
Grade Unit
g/t
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: Silver byproduct in Cyclone underground.

Evidence · table

“4.42”

Context: 444

Tags used in scoring

Cut-off Lowerednegative

Cut-off grade reduced beyond the suspicious bound vs prior estimate — tonnage growth may be artificial inflation.

Why it applies: Open pit constrained Mineral Resources are reported within the constraining pit shells, applying a lower cut-off grade of 0.35% Cu.

Evidence · text

“Open pit constrained Mineral Resources are reported within the constraining pit shells, applying a lower cut-off grade of 0.35% Cu.”

Context: Storm Copper Project, Nunavut

Indicated Resourcepositive

Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.

Why it applies: category is "indicated"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

indicatedStorm Copper Project · copperTonnes: 7785000Grade: 1.47Grade Unit: %View all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
copper
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:be869c0b012e2d4b0b22
Mining method
combined
Resource basis
gross

Resource Data

Category
indicated
Tonnes
7785000
Grade
1.47
Grade Unit
%
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: High grade indicated resource in Chinook zone. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • High grade intercept

Evidence · table

“1.47”

Context: 7,785

Tags used in scoring

Indicated Resourcepositive

Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.

Why it applies: category is "indicated"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

indicatedStorm Copper Project · silverTonnes: 7785000Grade: 4.49Grade Unit: g/tView all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
silver
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:be869c0b012e2d4b0b22
Mining method
combined
Resource basis
gross

Resource Data

Category
indicated
Tonnes
7785000
Grade
4.49
Grade Unit
g/t
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: High grade indicated resource in Chinook zone. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • High grade intercept

Evidence · table

“4.49”

Context: 7,785

Tags used in scoring

Indicated Resourcepositive

Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.

Why it applies: category is "indicated"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

inferredStorm Copper Project · copperTonnes: 135000Grade: 1.45Grade Unit: %View all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
copper
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:b65f4721bff29fba5fde
Deposit or zone
Chinook
Mining method
combined
Material type
fresh
Resource basis
gross

Resource Data

Category
inferred
Tonnes
135000
Grade
1.45
Grade Unit
%
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: High grade indicated resource in Chinook zone. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • High grade intercept

Evidence · table

“1.45”

Context: 135

Tags used in scoring

Inferred Resourcenegative

Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.

Why it applies: category is "inferred"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

inferredStorm Copper Project · silverTonnes: 135000Grade: 2.86Grade Unit: g/tView all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
silver
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:b65f4721bff29fba5fde
Deposit or zone
Chinook
Mining method
combined
Material type
fresh
Resource basis
gross

Resource Data

Category
inferred
Tonnes
135000
Grade
2.86
Grade Unit
g/t
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: High grade indicated resource in Chinook zone. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • High grade intercept

Evidence · table

“2.86”

Context: 135

Tags used in scoring

Inferred Resourcenegative

Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.

Why it applies: category is "inferred"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

inferredStorm Copper Project · copperTonnes: 505000Grade: 0.65Grade Unit: %View all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
copper
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:01f0e4b2e490e479f4e5
Deposit or zone
Cirrus
Mining method
combined
Material type
fresh
Resource basis
gross

Resource Data

Category
inferred
Tonnes
505000
Grade
0.65
Grade Unit
%
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: High grade indicated resource in Chinook zone. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • High grade intercept

Evidence · table

“0.65”

Context: 505

Tags used in scoring

Inferred Resourcenegative

Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.

Why it applies: category is "inferred"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

inferredStorm Copper Project · silverTonnes: 505000Grade: 1.29Grade Unit: g/tView all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
silver
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:01f0e4b2e490e479f4e5
Deposit or zone
Cirrus
Mining method
combined
Material type
fresh
Resource basis
gross

Resource Data

Category
inferred
Tonnes
505000
Grade
1.29
Grade Unit
g/t
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: High grade indicated resource in Chinook zone. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • High grade intercept

Evidence · table

“1.29”

Context: 505

Tags used in scoring

Inferred Resourcenegative

Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.

Why it applies: category is "inferred"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

inferredStorm Copper Project · copperTonnes: 791000Grade: 1.07Grade Unit: %View all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
copper
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:0544a5674d2a3902bb76
Deposit or zone
Corona
Mining method
combined
Material type
fresh
Resource basis
gross

Resource Data

Category
inferred
Tonnes
791000
Grade
1.07
Grade Unit
%
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: High grade indicated resource in Chinook zone. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • High grade intercept

Evidence · table

“1.07”

Context: 791

Tags used in scoring

Inferred Resourcenegative

Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.

Why it applies: category is "inferred"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

inferredStorm Copper Project · silverTonnes: 791000Grade: 1.53Grade Unit: g/tView all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
silver
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:0544a5674d2a3902bb76
Deposit or zone
Corona
Mining method
combined
Material type
fresh
Resource basis
gross

Resource Data

Category
inferred
Tonnes
791000
Grade
1.53
Grade Unit
g/t
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: High grade indicated resource in Chinook zone. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • High grade intercept

Evidence · table

“1.53”

Context: 791

Tags used in scoring

Inferred Resourcenegative

Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.

Why it applies: category is "inferred"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

inferredStorm Copper Project · copperTonnes: 532000Grade: 1.77Grade Unit: %View all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
copper
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:6b9fb4186d8820318368
Deposit or zone
Cyclone
Mining method
combined
Material type
fresh
Resource basis
gross

Resource Data

Category
inferred
Tonnes
532000
Grade
1.77
Grade Unit
%
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: High grade indicated resource in Chinook zone. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • High grade intercept

Evidence · table

“1.77”

Context: 532

Tags used in scoring

Inferred Resourcenegative

Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.

Why it applies: category is "inferred"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

inferredStorm Copper Project · silverTonnes: 532000Grade: 6.48Grade Unit: g/tView all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
silver
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:6b9fb4186d8820318368
Deposit or zone
Cyclone
Mining method
combined
Material type
fresh
Resource basis
gross

Resource Data

Category
inferred
Tonnes
532000
Grade
6.48
Grade Unit
g/t
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: High grade indicated resource in Chinook zone. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • High grade intercept

Evidence · table

“6.48”

Context: 532

Tags used in scoring

Inferred Resourcenegative

Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.

Why it applies: category is "inferred"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

inferredStorm Copper Project · copperTonnes: 189000Grade: 1.33Grade Unit: %View all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
copper
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:c83aa26438dafb2e539b
Deposit or zone
Lightning Ridge
Mining method
combined
Material type
fresh
Resource basis
gross

Resource Data

Category
inferred
Tonnes
189000
Grade
1.33
Grade Unit
%
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: High grade indicated resource in Chinook zone. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • High grade intercept

Evidence · table

“1.33”

Context: 189

Tags used in scoring

Inferred Resourcenegative

Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.

Why it applies: category is "inferred"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

inferredStorm Copper Project · silverTonnes: 189000Grade: 5.17Grade Unit: g/tView all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
silver
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:c83aa26438dafb2e539b
Deposit or zone
Lightning Ridge
Mining method
combined
Material type
fresh
Resource basis
gross

Resource Data

Category
inferred
Tonnes
189000
Grade
5.17
Grade Unit
g/t
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: High grade indicated resource in Chinook zone. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • High grade intercept

Evidence · table

“5.17”

Context: 189

Tags used in scoring

Inferred Resourcenegative

Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.

Why it applies: category is "inferred"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

inferredStorm Copper Project · copperTonnes: 756000Grade: 1.48Grade Unit: %View all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
copper
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:5dd2445ca7e127c89dd2
Deposit or zone
Thunder
Mining method
combined
Material type
fresh
Resource basis
gross

Resource Data

Category
inferred
Tonnes
756000
Grade
1.48
Grade Unit
%
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: High grade indicated resource in Chinook zone. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • High grade intercept

Evidence · table

“1.48”

Context: 756

Tags used in scoring

Inferred Resourcenegative

Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.

Why it applies: category is "inferred"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

inferredStorm Copper Project · silverTonnes: 756000Grade: 2.04Grade Unit: g/tView all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
silver
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:5dd2445ca7e127c89dd2
Deposit or zone
Thunder
Mining method
combined
Material type
fresh
Resource basis
gross

Resource Data

Category
inferred
Tonnes
756000
Grade
2.04
Grade Unit
g/t
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: High grade indicated resource in Chinook zone. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • High grade intercept

Evidence · table

“2.04”

Context: 756

Tags used in scoring

Inferred Resourcenegative

Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.

Why it applies: category is "inferred"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

inferredStorm Copper Project · copperTonnes: 2908000Grade: 1.27Grade Unit: %View all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
copper
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:99634d35c159ed29069f
Mining method
combined
Resource basis
gross

Resource Data

Category
inferred
Tonnes
2908000
Grade
1.27
Grade Unit
%
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: High grade indicated resource in Chinook zone. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • High grade intercept

Evidence · table

“1.27”

Context: 2,908

Tags used in scoring

Inferred Resourcenegative

Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.

Why it applies: category is "inferred"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

inferredStorm Copper Project · silverTonnes: 2908000Grade: 2.82Grade Unit: g/tView all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
silver
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:99634d35c159ed29069f
Mining method
combined
Resource basis
gross

Resource Data

Category
inferred
Tonnes
2908000
Grade
2.82
Grade Unit
g/t
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: High grade indicated resource in Chinook zone. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • High grade intercept

Evidence · table

“2.82”

Context: 2,908

Tags used in scoring

Inferred Resourcenegative

Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.

Why it applies: category is "inferred"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

inferredStorm Copper Project · copperTonnes: 426000Grade: 1.53Grade Unit: %View all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
copper
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:2058219f928e7f7ad9c1
Deposit or zone
Cyclone
Mining method
combined
Material type
fresh
Resource basis
gross

Resource Data

Category
inferred
Tonnes
426000
Grade
1.53
Grade Unit
%
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: High grade indicated resource in Chinook zone. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • High grade intercept

Evidence · table

“1.53”

Context: 426

Tags used in scoring

Inferred Resourcenegative

Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.

Why it applies: category is "inferred"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

inferredStorm Copper Project · silverTonnes: 426000Grade: 5.07Grade Unit: g/tView all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
silver
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:2058219f928e7f7ad9c1
Deposit or zone
Cyclone
Mining method
combined
Material type
fresh
Resource basis
gross

Resource Data

Category
inferred
Tonnes
426000
Grade
5.07
Grade Unit
g/t
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: High grade indicated resource in Chinook zone. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • High grade intercept

Evidence · table

“5.07”

Context: 426

Tags used in scoring

Inferred Resourcenegative

Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.

Why it applies: category is "inferred"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

indicatedStorm Copper Project · copperTonnes: 8229000Grade: 1.47Grade Unit: %View all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
copper
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:2e01fa743c5a11c845fa
Deposit or zone
Global
Mining method
combined
Material type
fresh
Resource basis
gross

Resource Data

Category
indicated
Tonnes
8229000
Grade
1.47
Grade Unit
%
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: High grade indicated resource in Chinook zone. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • High grade intercept

Evidence · table

“1.47”

Context: 8,229

Tags used in scoring

Indicated Resourcepositive

Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.

Why it applies: category is "indicated"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

indicatedStorm Copper Project · silverTonnes: 8229000Grade: 4.48Grade Unit: g/tView all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
silver
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:2e01fa743c5a11c845fa
Deposit or zone
Global
Mining method
combined
Material type
fresh
Resource basis
gross

Resource Data

Category
indicated
Tonnes
8229000
Grade
4.48
Grade Unit
g/t
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: High grade indicated resource in Chinook zone. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • High grade intercept

Evidence · table

“4.48”

Context: 8,229

Tags used in scoring

Indicated Resourcepositive

Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.

Why it applies: category is "indicated"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

inferredStorm Copper Project · copperTonnes: 3334000Grade: 1.3Grade Unit: %View all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
copper
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:93ed0a9b16753a7ab424
Deposit or zone
Global
Mining method
combined
Material type
fresh
Resource basis
gross

Resource Data

Category
inferred
Tonnes
3334000
Grade
1.3
Grade Unit
%
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: High grade indicated resource in Chinook zone. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • High grade intercept

Evidence · table

“1.30”

Context: 3,334

Tags used in scoring

Inferred Resourcenegative

Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.

Why it applies: category is "inferred"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

inferredStorm Copper Project · silverTonnes: 3334000Grade: 3.11Grade Unit: g/tView all details
Link to this fact

Identity

Project
Storm Copper Project
Commodity
silver
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAY

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Yungang Wu
Resource group id
resource:93ed0a9b16753a7ab424
Deposit or zone
Global
Mining method
combined
Material type
fresh
Resource basis
gross

Resource Data

Category
inferred
Tonnes
3334000
Grade
3.11
Grade Unit
g/t
Cutoff Grade
0.35
Cutoff Unit
%

Prior Estimate

Resource Date
2025-02-07

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS

Review

Needs Review
No
Historical
No

Dates

Event date
2025-04-17T00:00:00.000Z

Reasoning: High grade indicated resource in Chinook zone. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • High grade intercept

Evidence · table

“3.11”

Context: 3,334

Tags used in scoring

Inferred Resourcenegative

Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.

Why it applies: category is "inferred"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

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.