Osisko Metals Announces Significant Increase in Mineral Resources at Gaspé Copper

Original announcement by tmx on

Company
Osisko Metals Incorporated
Ticker
OM
Exchange
TSX
Region
Quebec
Primary commodity
Copper
Secondary commodities
Molybdenum, Silver, Zinc
Document categories
Resource update, Drill results
Extracted
2026-09-18 14:58:41 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Osisko Metals announced a significant update to the Mineral Resource Estimate for its Gaspé Copper Project in Eastern Quebec. The updated MRE includes 1.83 billion tonnes of Measured and Indicated resources at 0.27% Cu (0.32% CuEq) and 239 million tonnes of Inferred resources at 0.41% Cu (0.46% CuEq). This represents a 119% increase in contained copper metal in the M&I categories over the previously reported Indicated Resource, establishing Gaspé Copper as one of the largest undeveloped copper-molybdenum deposits in North America. The company plans a 50,000-meter drill program to upgrade Inferred resources and expand the deposit.

Reasoning: The updated Mineral Resource Estimate for Gaspé Copper shows a significant increase in Measured and Indicated resources, with a 119% increase in contained copper metal over the previously reported Indicated Resource. This positions the project as one of North America's largest undeveloped copper-molybdenum deposits, supported by a detailed NI 43-101 compliant estimate and a planned drill program to further upgrade and expand resources.

Positive factors

  • Tonnage Growth
  • Contained Metal Growth
  • Category Upgrade
  • QP/CP Signed
  • NI 43-101 Compliant
  • Maiden Resource (for the updated M&I scale)

Facts used in scoring: 18

Classification and evidence

Cut-off Disclosedpositive

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

Why it applies: A current resource fact retains the disclosed cut-off grade

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: The source explicitly discloses a revised resource estimate

Evidence · text

“updated mineral resource estimate”

Extracted facts

Stored fact records: 18. Some facts used in scoring do not have a stored record.

Resource Estimates (18)

measuredGaspé Copper Project · copperTonnes: 136500000Grade: 0.37Grade Unit: %Contained Metal: 1128Contained Unit: m lbsView all details
Link to this fact

Identity

Project
Gaspé Copper Project
Commodity
copper
Region
canada_qc
Reported Region
Quebec
Ticker
OM

Resource scope

Estimate type
resource
Effective date
2026-01-17T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Pierre-Luc Richard, P.Geo., François Le Moal, P.Eng., Christian Laroche, P.Eng.
Resource group id
resource:d3fd3537d1418d0d8c05
Deposit or zone
Copper Mountain
Mining method
open_pit
Material type
sulphide
Resource basis
gross

Resource Data

Category
measured
Tonnes
136500000
Grade
0.37
Grade Unit
%
Contained Metal
1128
Contained Unit
m lbs
Cutoff Grade
0.16
Cutoff Unit
% CuEq

Prior Estimate

Resource Date
2026-01-17

Metal Equivalent

Metal Eq. Grade
0.42
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-04-14T00:00:00.000Z

Reasoning: This Measured resource for copper contributes to the overall significant increase in high-confidence resources for the project.

Positive factors

  • Measured Resource
  • QP/CP Signed
  • NI 43-101 Compliant

Evidence · table

“0.37”

Context: 136.5

Tags used in scoring

Measured Resourcepositive

Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves.

Why it applies: category is "measured"

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

measuredGaspé Copper Project · molybdenumTonnes: 136500000Grade: 0.014Grade Unit: %Contained Metal: 41.9Contained Unit: m lbsView all details
Link to this fact

Identity

Project
Gaspé Copper Project
Commodity
molybdenum
Region
canada_qc
Reported Region
Quebec
Ticker
OM

Resource scope

Estimate type
resource
Effective date
2026-01-17T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Pierre-Luc Richard, P.Geo., François Le Moal, P.Eng., Christian Laroche, P.Eng.
Resource group id
resource:d3fd3537d1418d0d8c05
Deposit or zone
Copper Mountain
Mining method
open_pit
Material type
sulphide
Resource basis
gross

Resource Data

Category
measured
Tonnes
136500000
Grade
0.014
Grade Unit
%
Contained Metal
41.9
Contained Unit
m lbs
Cutoff Grade
0.16
Cutoff Unit
% CuEq

Prior Estimate

Resource Date
2026-01-17

Metal Equivalent

Metal Eq. Grade
0.42
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-04-14T00:00:00.000Z

Reasoning: This Measured molybdenum resource adds to the overall polymetallic value of the project.

Positive factors

  • Measured Resource
  • QP/CP Signed
  • NI 43-101 Compliant

Evidence · table

“0.014”

Context: 136.5

Tags used in scoring

Measured Resourcepositive

Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves.

Why it applies: category is "measured"

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

measuredGaspé Copper Project · silverTonnes: 136500000Grade: 1.98Grade Unit: g/tContained Metal: 8.7Contained Unit: mozView all details
Link to this fact

Identity

Project
Gaspé Copper Project
Commodity
silver
Region
canada_qc
Reported Region
Quebec
Ticker
OM

Resource scope

Estimate type
resource
Effective date
2026-01-17T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Pierre-Luc Richard, P.Geo., François Le Moal, P.Eng., Christian Laroche, P.Eng.
Resource group id
resource:d3fd3537d1418d0d8c05
Deposit or zone
Copper Mountain
Mining method
open_pit
Material type
sulphide
Resource basis
gross

Resource Data

Category
measured
Tonnes
136500000
Grade
1.98
Grade Unit
g/t
Contained Metal
8.7
Contained Unit
moz
Cutoff Grade
0.16
Cutoff Unit
% CuEq

Prior Estimate

Resource Date
2026-01-17

Metal Equivalent

Metal Eq. Grade
0.42
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-04-14T00:00:00.000Z

Reasoning: This Measured silver resource adds to the overall polymetallic value of the project.

Positive factors

  • Measured Resource
  • QP/CP Signed
  • NI 43-101 Compliant

Evidence · table

“1.98”

Context: 136.5

Tags used in scoring

Measured Resourcepositive

Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves.

Why it applies: category is "measured"

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

indicatedGaspé Copper Project · copperTonnes: 1697700000Grade: 0.26Grade Unit: %Contained Metal: 9639Contained Unit: m lbsView all details
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Identity

Project
Gaspé Copper Project
Commodity
copper
Region
canada_qc
Reported Region
Quebec
Ticker
OM

Resource scope

Estimate type
resource
Effective date
2026-01-17T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Pierre-Luc Richard, P.Geo., François Le Moal, P.Eng., Christian Laroche, P.Eng.
Resource group id
resource:6cf97e2741a042762997
Deposit or zone
Copper Mountain
Mining method
open_pit
Material type
sulphide
Resource basis
gross

Resource Data

Category
indicated
Tonnes
1697700000
Grade
0.26
Grade Unit
%
Contained Metal
9639
Contained Unit
m lbs
Cutoff Grade
0.16
Cutoff Unit
% CuEq

Prior Estimate

Resource Date
2026-01-17
Prior Contained Metal
4401

Metal Equivalent

Metal Eq. Grade
0.32
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-04-14T00:00:00.000Z

Reasoning: This Indicated copper resource shows significant growth and contributes substantially to the project's overall contained metal, representing a key de-risking step.

Positive factors

  • Indicated Resource
  • Contained Metal Growth
  • QP/CP Signed
  • NI 43-101 Compliant

Evidence · table

“0.26”

Context: 1,697.7

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

Contained Metal Growthpositive

True scale improvement — contained metal ounces/tonnes increased vs prior, accounting for both tonnage and grade changes.

Why it applies: 9639 against 4401 previously

indicatedGaspé Copper Project · copperTonnes: 1834200000Grade: 0.27Grade Unit: %Contained Metal: 10766Contained Unit: m lbsView all details
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Identity

Project
Gaspé Copper Project
Commodity
copper
Region
canada_qc
Reported Region
Quebec
Ticker
OM

Resource scope

Estimate type
resource
Effective date
2026-01-17T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Pierre-Luc Richard, P.Geo., François Le Moal, P.Eng., Christian Laroche, P.Eng.
Resource group id
resource:d89fd3e8a97c23963ffe
Deposit or zone
Copper Mountain
Mining method
open_pit
Material type
sulphide
Resource basis
gross

Resource Data

Category
indicated
Tonnes
1834200000
Grade
0.27
Grade Unit
%
Contained Metal
10766
Contained Unit
m lbs
Cutoff Grade
0.16
Cutoff Unit
% CuEq

Prior Estimate

Resource Date
2026-01-17
Prior Contained Metal
4916

Metal Equivalent

Metal Eq. Grade
0.32
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-04-14T00:00:00.000Z

Reasoning: The combined Measured and Indicated copper resource shows a substantial 119% increase in contained metal over the prior Indicated resource, significantly de-risking the project and establishing it as a major undeveloped deposit.

Positive factors

  • Contained Metal Growth
  • Category Upgrade
  • QP/CP Signed
  • NI 43-101 Compliant

Evidence · table

“0.27”

Context: 1,834.2

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

Contained Metal Growthpositive

True scale improvement — contained metal ounces/tonnes increased vs prior, accounting for both tonnage and grade changes.

Why it applies: 10766 against 4916 previously

inferredGaspé Copper Project · copperTonnes: 238800000Grade: 0.41Grade Unit: %Contained Metal: 2158Contained Unit: m lbsView all details
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Identity

Project
Gaspé Copper Project
Commodity
copper
Region
canada_qc
Reported Region
Quebec
Ticker
OM

Resource scope

Estimate type
resource
Effective date
2026-01-17T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Pierre-Luc Richard, P.Geo., François Le Moal, P.Eng., Christian Laroche, P.Eng.
Resource group id
resource:b54bbce639a585e60e88
Deposit or zone
Copper Mountain
Mining method
open_pit
Material type
sulphide
Resource basis
gross

Resource Data

Category
inferred
Tonnes
238800000
Grade
0.41
Grade Unit
%
Contained Metal
2158
Contained Unit
m lbs
Cutoff Grade
0.16
Cutoff Unit
% CuEq

Prior Estimate

Resource Date
2026-01-17

Metal Equivalent

Metal Eq. Grade
0.46
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-04-14T00:00:00.000Z

Reasoning: This Inferred copper resource adds significant potential for future growth, with a higher grade than the M&I categories, and plans for upgrading with additional drilling.

Positive factors

  • QP/CP Signed
  • NI 43-101 Compliant

Negative factors

  • Inferred Resource

Evidence · table

“0.41”

Context: 238.8

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

inferredGaspé Copper Project · molybdenumTonnes: 238800000Grade: 0.016Grade Unit: %Contained Metal: 82.9Contained Unit: m lbsView all details
Link to this fact

Identity

Project
Gaspé Copper Project
Commodity
molybdenum
Region
canada_qc
Reported Region
Quebec
Ticker
OM

Resource scope

Estimate type
resource
Effective date
2026-01-17T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Pierre-Luc Richard, P.Geo., François Le Moal, P.Eng., Christian Laroche, P.Eng.
Resource group id
resource:b54bbce639a585e60e88
Deposit or zone
Copper Mountain
Mining method
open_pit
Material type
sulphide
Resource basis
gross

Resource Data

Category
inferred
Tonnes
238800000
Grade
0.016
Grade Unit
%
Contained Metal
82.9
Contained Unit
m lbs
Cutoff Grade
0.16
Cutoff Unit
% CuEq

Prior Estimate

Resource Date
2026-01-17

Metal Equivalent

Metal Eq. Grade
0.46
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-04-14T00:00:00.000Z

Reasoning: This Inferred molybdenum resource adds to the polymetallic potential of the project, with plans for future upgrade.

Positive factors

  • QP/CP Signed
  • NI 43-101 Compliant

Negative factors

  • Inferred Resource

Evidence · table

“0.016”

Context: 238.8

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

inferredGaspé Copper Project · silverTonnes: 238800000Grade: 1.88Grade Unit: g/tContained Metal: 14.5Contained Unit: mozView all details
Link to this fact

Identity

Project
Gaspé Copper Project
Commodity
silver
Region
canada_qc
Reported Region
Quebec
Ticker
OM

Resource scope

Estimate type
resource
Effective date
2026-01-17T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Pierre-Luc Richard, P.Geo., François Le Moal, P.Eng., Christian Laroche, P.Eng.
Resource group id
resource:b54bbce639a585e60e88
Deposit or zone
Copper Mountain
Mining method
open_pit
Material type
sulphide
Resource basis
gross

Resource Data

Category
inferred
Tonnes
238800000
Grade
1.88
Grade Unit
g/t
Contained Metal
14.5
Contained Unit
moz
Cutoff Grade
0.16
Cutoff Unit
% CuEq

Prior Estimate

Resource Date
2026-01-17

Metal Equivalent

Metal Eq. Grade
0.46
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-04-14T00:00:00.000Z

Reasoning: This Inferred silver resource adds to the polymetallic potential of the project, with plans for future upgrade.

Positive factors

  • QP/CP Signed
  • NI 43-101 Compliant

Negative factors

  • Inferred Resource

Evidence · table

“1.88”

Context: 238.8

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

indicatedGaspé Copper Project · copperTonnes: 2342000000Grade: 0.23Grade Unit: %Contained Metal: 12000Contained Unit: m lbsView all details
Link to this fact

Identity

Project
Gaspé Copper Project
Commodity
copper
Region
canada_qc
Reported Region
Quebec
Ticker
OM

Resource scope

Estimate type
resource
Effective date
2026-01-17T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Pierre-Luc Richard, P.Geo., François Le Moal, P.Eng., Christian Laroche, P.Eng.
Resource group id
resource:ee42803ed039e3c53102
Deposit or zone
Copper Mountain
Mining method
open_pit
Material type
sulphide
Resource basis
gross

Resource Data

Category
indicated
Tonnes
2342000000
Grade
0.23
Grade Unit
%
Contained Metal
12000
Contained Unit
m lbs
Cutoff Grade
0.09
Cutoff Unit
% CuEq

Prior Estimate

Resource Date
2026-01-17

Metal Equivalent

Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-04-14T00:00:00.000Z

Reasoning: This M&I copper resource at a lower cut-off grade demonstrates the project's potential for a larger tonnage profile, contributing to overall contained metal.

Positive factors

  • Indicated Resource
  • Contained Metal Growth
  • QP/CP Signed
  • NI 43-101 Compliant

Evidence · table

“0.23”

Context: 2,342

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

indicatedGaspé Copper Project · molybdenumTonnes: 2342000000Grade: 0.014Grade Unit: %View all details
Link to this fact

Identity

Project
Gaspé Copper Project
Commodity
molybdenum
Region
canada_qc
Reported Region
Quebec
Ticker
OM

Resource scope

Estimate type
resource
Effective date
2026-01-17T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Pierre-Luc Richard, P.Geo., François Le Moal, P.Eng., Christian Laroche, P.Eng.
Resource group id
resource:ee42803ed039e3c53102
Deposit or zone
Copper Mountain
Mining method
open_pit
Material type
sulphide
Resource basis
gross

Resource Data

Category
indicated
Tonnes
2342000000
Grade
0.014
Grade Unit
%
Cutoff Grade
0.09
Cutoff Unit
% CuEq

Prior Estimate

Resource Date
2026-01-17

Metal Equivalent

Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-04-14T00:00:00.000Z

Reasoning: This M&I molybdenum resource at a lower cut-off grade contributes to the polymetallic potential of the project.

Positive factors

  • Indicated Resource
  • QP/CP Signed
  • NI 43-101 Compliant

Evidence · table

“0.014”

Context: 2,342

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

inferredGaspé Copper Project · copperTonnes: 287000000Grade: 0.36Grade Unit: %Contained Metal: 2264Contained Unit: m lbsView all details
Link to this fact

Identity

Project
Gaspé Copper Project
Commodity
copper
Region
canada_qc
Reported Region
Quebec
Ticker
OM

Resource scope

Estimate type
resource
Effective date
2026-01-17T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Pierre-Luc Richard, P.Geo., François Le Moal, P.Eng., Christian Laroche, P.Eng.
Resource group id
resource:b9ec00aad36c419e5b41
Deposit or zone
Copper Mountain
Mining method
open_pit
Material type
sulphide
Resource basis
gross

Resource Data

Category
inferred
Tonnes
287000000
Grade
0.36
Grade Unit
%
Contained Metal
2264
Contained Unit
m lbs
Cutoff Grade
0.09
Cutoff Unit
% CuEq

Prior Estimate

Resource Date
2026-01-17

Metal Equivalent

Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-04-14T00:00:00.000Z

Reasoning: This Inferred copper resource at a lower cut-off grade indicates additional potential for resource expansion and future upgrade.

Positive factors

  • QP/CP Signed
  • NI 43-101 Compliant

Negative factors

  • Inferred Resource

Evidence · table

“0.36”

Context: 287

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

inferredGaspé Copper Project · molybdenumTonnes: 287000000Grade: 0.014Grade Unit: %View all details
Link to this fact

Identity

Project
Gaspé Copper Project
Commodity
molybdenum
Region
canada_qc
Reported Region
Quebec
Ticker
OM

Resource scope

Estimate type
resource
Effective date
2026-01-17T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Pierre-Luc Richard, P.Geo., François Le Moal, P.Eng., Christian Laroche, P.Eng.
Resource group id
resource:b9ec00aad36c419e5b41
Deposit or zone
Copper Mountain
Mining method
open_pit
Material type
sulphide
Resource basis
gross

Resource Data

Category
inferred
Tonnes
287000000
Grade
0.014
Grade Unit
%
Cutoff Grade
0.09
Cutoff Unit
% CuEq

Prior Estimate

Resource Date
2026-01-17

Metal Equivalent

Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-04-14T00:00:00.000Z

Reasoning: This Inferred molybdenum resource at a lower cut-off grade contributes to the polymetallic potential of the project.

Positive factors

  • QP/CP Signed
  • NI 43-101 Compliant

Negative factors

  • Inferred Resource

Evidence · table

“0.014”

Context: 287

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

indicatedPine Point project · zincTonnes: 49500000Historical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Project
Pine Point project
Commodity
zinc
Region
northwest territories
Reported Region
Northwest Territories
Ticker
OM

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
Resource group id
resource:af62d90c1fa854680b09

Resource Data

Category
indicated
Tonnes
49500000

Metal Equivalent

Metal Eq. Grade
5.52
Metal Eq. Unit
% ZnEq

Review

Needs Review
Yes
Review Reason
historical_restatement
Historical
Yes
Historical Source Date
2024-06-25T00:00:00.000Z

Dates

Event date
2026-04-14T00:00:00.000Z

Reasoning: This is a restatement of a previously announced resource estimate for a separate project, providing no new information in this document.

Positive factors

  • NI 43-101 Compliant

Negative factors

  • Stale Data Re-release

Evidence · text

“Indicated Mineral Resources of 49.5 Mt averaging 5.52% ZnEq and Inferred Mineral Resources of 8.3 Mt averaging 5.64% ZnEq (in compliance with NI 43-101). For more information, see Osisko Metals ' June 25, 2024 news release entitled "Osisko Metals releases Pine Point mineral resource estimate: 49.5 million tonnes of indicated resources at 5.52% ZnEq"”

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 Undisclosednegative

High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff_grade was stated

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

inferredPine Point project · zincTonnes: 8300000Historical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Project
Pine Point project
Commodity
zinc
Region
northwest territories
Reported Region
Northwest Territories
Ticker
OM

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
Resource group id
resource:5e03755398f1c2703ad5

Resource Data

Category
inferred
Tonnes
8300000

Metal Equivalent

Metal Eq. Grade
5.64
Metal Eq. Unit
% ZnEq

Review

Needs Review
Yes
Review Reason
historical_restatement
Historical
Yes
Historical Source Date
2024-06-25T00:00:00.000Z

Dates

Event date
2026-04-14T00:00:00.000Z

Reasoning: This is a restatement of a previously announced Inferred resource estimate for a separate project, providing no new information in this document.

Positive factors

  • NI 43-101 Compliant

Negative factors

  • Stale Data Re-release
  • Inferred Resource

Evidence · text

“Indicated Mineral Resources of 49.5 Mt averaging 5.52% ZnEq and Inferred Mineral Resources of 8.3 Mt averaging 5.64% ZnEq (in compliance with NI 43-101). For more information, see Osisko Metals ' June 25, 2024 news release entitled "Osisko Metals releases Pine Point mineral resource estimate: 49.5 million tonnes of indicated resources at 5.52% ZnEq"”

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 Undisclosednegative

High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff_grade was stated

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

indicatedGaspé Copper Project · molybdenumTonnes: 1697700000Grade: 0.017Grade Unit: %Contained Metal: 631.3Contained Unit: m lbsView all details
Link to this fact

Identity

Project
Gaspé Copper Project
Commodity
molybdenum
Region
canada_qc
Reported Region
Quebec
Ticker
OM

Resource scope

Estimate type
resource
Effective date
2026-01-17T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Pierre-Luc Richard, P.Geo., François Le Moal, P.Eng., Christian Laroche, P.Eng.
Resource group id
resource:6cf97e2741a042762997
Deposit or zone
Copper Mountain
Mining method
open_pit
Material type
sulphide
Resource basis
gross

Resource Data

Category
indicated
Tonnes
1697700000
Grade
0.017
Grade Unit
%
Contained Metal
631.3
Contained Unit
m lbs
Cutoff Grade
0.16
Cutoff Unit
% CuEq

Prior Estimate

Resource Date
2026-01-17

Metal Equivalent

Metal Eq. Grade
0.32
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-04-14T00:00:00.000Z

Reasoning: This Indicated molybdenum resource adds to the overall polymetallic value and confidence of the project.

Positive factors

  • Indicated Resource
  • QP/CP Signed
  • NI 43-101 Compliant

Evidence · table

“0.017”

Context: 1,697.7

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

indicatedGaspé Copper Project · silverTonnes: 1697700000Grade: 1.54Grade Unit: g/tContained Metal: 84.1Contained Unit: mozView all details
Link to this fact

Identity

Project
Gaspé Copper Project
Commodity
silver
Region
canada_qc
Reported Region
Quebec
Ticker
OM

Resource scope

Estimate type
resource
Effective date
2026-01-17T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Pierre-Luc Richard, P.Geo., François Le Moal, P.Eng., Christian Laroche, P.Eng.
Resource group id
resource:6cf97e2741a042762997
Deposit or zone
Copper Mountain
Mining method
open_pit
Material type
sulphide
Resource basis
gross

Resource Data

Category
indicated
Tonnes
1697700000
Grade
1.54
Grade Unit
g/t
Contained Metal
84.1
Contained Unit
moz
Cutoff Grade
0.16
Cutoff Unit
% CuEq

Prior Estimate

Resource Date
2026-01-17

Metal Equivalent

Metal Eq. Grade
0.32
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-04-14T00:00:00.000Z

Reasoning: This Indicated silver resource adds to the overall polymetallic value and confidence of the project.

Positive factors

  • Indicated Resource
  • QP/CP Signed
  • NI 43-101 Compliant

Evidence · table

“1.54”

Context: 1,697.7

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

indicatedGaspé Copper Project · molybdenumTonnes: 1834200000Grade: 0.017Grade Unit: %Contained Metal: 673.2Contained Unit: m lbsView all details
Link to this fact

Identity

Project
Gaspé Copper Project
Commodity
molybdenum
Region
canada_qc
Reported Region
Quebec
Ticker
OM

Resource scope

Estimate type
resource
Effective date
2026-01-17T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Pierre-Luc Richard, P.Geo., François Le Moal, P.Eng., Christian Laroche, P.Eng.
Resource group id
resource:d89fd3e8a97c23963ffe
Deposit or zone
Copper Mountain
Mining method
open_pit
Material type
sulphide
Resource basis
gross

Resource Data

Category
indicated
Tonnes
1834200000
Grade
0.017
Grade Unit
%
Contained Metal
673.2
Contained Unit
m lbs
Cutoff Grade
0.16
Cutoff Unit
% CuEq

Prior Estimate

Resource Date
2026-01-17

Metal Equivalent

Metal Eq. Grade
0.32
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-04-14T00:00:00.000Z

Reasoning: The combined Measured and Indicated molybdenum resource adds significant polymetallic value to the project.

Positive factors

  • Contained Metal Growth
  • QP/CP Signed
  • NI 43-101 Compliant

Evidence · table

“0.017”

Context: 1,834.2

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

indicatedGaspé Copper Project · silverTonnes: 1834200000Grade: 1.57Grade Unit: g/tContained Metal: 92.8Contained Unit: mozView all details
Link to this fact

Identity

Project
Gaspé Copper Project
Commodity
silver
Region
canada_qc
Reported Region
Quebec
Ticker
OM

Resource scope

Estimate type
resource
Effective date
2026-01-17T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Pierre-Luc Richard, P.Geo., François Le Moal, P.Eng., Christian Laroche, P.Eng.
Resource group id
resource:d89fd3e8a97c23963ffe
Deposit or zone
Copper Mountain
Mining method
open_pit
Material type
sulphide
Resource basis
gross

Resource Data

Category
indicated
Tonnes
1834200000
Grade
1.57
Grade Unit
g/t
Contained Metal
92.8
Contained Unit
moz
Cutoff Grade
0.16
Cutoff Unit
% CuEq

Prior Estimate

Resource Date
2026-01-17

Metal Equivalent

Metal Eq. Grade
0.32
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-04-14T00:00:00.000Z

Reasoning: The combined Measured and Indicated silver resource adds significant polymetallic value to the project.

Positive factors

  • Contained Metal Growth
  • QP/CP Signed
  • NI 43-101 Compliant

Evidence · table

“1.57”

Context: 1,834.2

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

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.