Hemlo Mining Corp. Announces Increased Mineral Resource Estimate for the Hemlo Gold Mine

Original announcement by orestocks on

Company
Hemlo Mining Corp.
Ticker
HMMC
Exchange
TSXV
Region
Ontario, Canada
Primary commodity
Gold
Secondary commodities
None reported
Document categories
Resource update
Extracted
2026-10-01 03:38:33 UTC

Analysis by Minestarters Atlas

Atlas analysis published:

Minestarters Atlas analysis

Summary

Hemlo Mining Corp. announced an updated Mineral Resource Estimate for its Hemlo Gold Mine in Marathon, Ontario, reporting a significant increase in gold resources. Measured & Indicated resources grew by 34% to 4.8 Moz Au, and Inferred resources increased by 39% to 0.9 Moz Au. The growth is attributed to additional drilling, geological reinterpretation, and updated economic assumptions, including a higher gold price and lower cut-off grades.

Reasoning: The updated Mineral Resource Estimate for the Hemlo Gold Mine shows a significant increase in both Measured & Indicated and Inferred gold resources, driven by additional drilling, geological reinterpretation, and updated economic assumptions including a higher gold price and lower cut-off grades. The identification of a new A-Zone also contributes to the growth.

Positive factors

  • Tonnage Growth
  • Contained Metal Growth
  • Category Upgrade
  • QP/CP Signed
  • NI 43-101 Compliant
  • New Zone Identified

Negative factors

  • Cut-off Lowered
  • Gold Price Increase

Low confidence — this extraction should be reviewed alongside the original source.

Facts used in scoring: 19

Classification and evidence

Tonnage Growthpositive

Significant tonnage increase (≥15%) vs prior estimate with grade maintained or improved.

Why it applies: The MRE reports a significant increase in total Measured & Indicated resources to 96.9 Mt and Inferred resources to 12.1 Mt.

Evidence · text

“Measured & Indicated ("M&I") Mineral Resources (100% basis) of 96.9 million tonnes ("Mt") at 1.55 grams per tonne ("g/t") Au for 4.8 million ounces ("Moz") of gold ("Au"); represents an increase of 1.2 Moz, or +34%, compared to the 2025 Report.”

Contained Metal Growthpositive

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

Why it applies: The MRE shows an increase of 1.2 Moz in M&I gold resources (+34%) and 0.242 Moz in Inferred gold resources (+39%) compared to the prior estimate.

Evidence · text

“Measured & Indicated ("M&I") Mineral Resources (100% basis) of ... 4.8 million ounces ("Moz") of gold ("Au"); represents an increase of 1.2 Moz, or +34%, compared to the 2025 Report.”

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: The news release explicitly states that Dr. Raphael Dutaut and Mr. Brian Hartman, both P.Geo., are Qualified Persons responsible for reviewing and approving the scientific and technical information and the MRE.

Evidence · text

“The scientific and technical information in this news release has been reviewed and approved by Dr. Raphael Dutaut, Ph.D., P.Geo., Vice President, Exploration of Hemlo Mining Corp., who is a "Qualified Person" as defined by National Instrument 43-101 – Standards of Disclosure for Mineral Projects ("NI 43-101"). Mr. Brian Hartman, P.Geo., of SLR Consulting (Canada) Ltd., Denver, Colorado, is an independent Qualified Person for the mineral resource estimate disclosed herein, as defined by NI 43-101, and has reviewed and approved the relevant contents of this news release.”

NI 43-101 Compliantpositive

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

Why it applies: The MRE was prepared in accordance with NI 43-101 standards, and a Qualified Person under NI 43-101 has signed off on the estimate.

Evidence · text

“Mr. Hartman is an Independent Qualified Person within the meaning of NI 43-101 (as defined herein). The MRE was prepared in accordance with the Canadian Institute of Mining, Metallurgy and Petroleum ("CIM") Standards on Mineral Resources and Mineral Reserves, adopted by the CIM Council, as amended.”

Cut-off Disclosedpositive

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

Why it applies: The document clearly states the cut-off grades used for both Open Pit (0.28 g/t Au) and Underground (1.8 g/t Au) resources.

Evidence · text

“Open Pit Mineral Resources are reported using a gold cut-off grade of 0.28 g/t. Underground Mineral Resources are reported on a diluted basis using a gold cut-off grade of 1.8 g/t.”

Cut-off Lowerednegative

Cut-off grade significantly reduced vs prior estimate — tonnage growth may be artificial inflation.

Why it applies: The MRE's increases are partly related to updated economic assumptions, including a higher gold price which led to lower cut-off grades (from 0.36 g/t Au to 0.28 g/t Au for Open Pit and 2.4 g/t Au to 1.8 g/t Au for Underground).

Evidence · text

“The increases are mostly related to (i) the updated economic assumptions, including an increase in the long-term gold price from US$1,900/oz in the 2025 Report to US$2,500/oz in the MRE (see Table 4 for sensitivity analysis)”

Dilutive Growthnegative

Tonnage increased but contained metal flat or down — likely from lower cut-off grade, not geological expansion.

Why it applies: A portion of the resource growth is attributed to updated economic assumptions, including a higher gold price and lower cut-off grades, which can incorporate lower-grade material into the resource.

Evidence · text

“The increases are mostly related to (i) the updated economic assumptions, including an increase in the long-term gold price from US$1,900/oz in the 2025 Report to US$2,500/oz in the MRE (see Table 4 for sensitivity analysis)”

Resource Updateneutral

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

Why it applies: The document announces an updated Mineral Resource Estimate for the Hemlo Gold Mine, incorporating new drilling and revised assumptions.

Evidence · text

“Hemlo Mining Corp. Announces Increased Mineral Resource Estimate for the Hemlo Gold Mine”

Inferred Resourcenegative

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

Why it applies: The MRE includes a significant portion of Inferred Mineral Resources (12.1 Mt at 2.22 g/t Au for 0.9 Moz Au), which is a speculative category.

Evidence · text

“Inferred Mineral Resources (100% basis) of 12.1 Mt at 2.22 g/t Au for 0.9 Moz Au”

Measured Resourcepositive

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

Why it applies: The MRE includes Measured Mineral Resources, which is the highest confidence category.

Evidence · text

“Measured & Indicated ("M&I") Mineral Resources (100% basis) of 96.9 million tonnes ("Mt") at 1.55 grams per tonne ("g/t") Au for 4.8 million ounces ("Moz") of gold ("Au")”

Indicated Resourcepositive

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

Why it applies: The MRE includes Indicated Mineral Resources, which provides reasonable geological confidence.

Evidence · text

“Measured & Indicated ("M&I") Mineral Resources (100% basis) of 96.9 million tonnes ("Mt") at 1.55 grams per tonne ("g/t") Au for 4.8 million ounces ("Moz") of gold ("Au")”

Extracted facts

Stored fact records: 19. Some facts used in scoring do not have a stored record.

Resource Estimates (19)

indicatedHemlo Gold Mine · goldTonnes: 71923000Grade: 0.87Grade Unit: g/tContained Metal: 2009Contained Unit: kozView all details
Link to this fact

Identity

Project
Hemlo Gold Mine
Commodity
gold
Region
canada_on
Reported Region
Ontario, Canada
Ticker
HMMC

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Dr. Raphael Dutaut, Mr. Brian Hartman
Resource group id
resource:074c55608062f5186dd6
Deposit or zone
Open Pit
Mining method
combined

Resource Data

Category
indicated
Tonnes
71923000
Grade
0.87
Grade Unit
g/t
Contained Metal
2009
Contained Unit
koz
Cutoff Grade
0.28
Cutoff Unit
g/t Au

Prior Estimate

Resource Date
2025-12-31
Prior Contained Metal
1600
Prior Cutoff Grade
0.36

Lab

Laboratory
ALS Laboratories

Review

Needs Review
No
Historical
No

Dates

Event date
2026-06-25T00:00:00.000Z

Reasoning: The Open Pit Indicated resource shows a significant increase in contained gold, contributing to the overall MRE growth. This is partly due to a lower cut-off grade and higher gold price assumptions, alongside new drilling.

Positive factors

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

Negative factors

  • Cut-off Lowered
  • Gold Price Increase

Evidence · table

“71,923”

Context: 0.87

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: 2009 against 1600 previously

Cut-off Lowerednegative

Cut-off grade significantly reduced vs prior estimate — tonnage growth may be artificial inflation.

Why it applies: 0.28 against 0.36 previously

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

measuredHemlo Gold Mine · goldTonnes: 5095000Grade: 3.4Grade Unit: g/tContained Metal: 557Contained Unit: kozView all details
Link to this fact

Identity

Project
Hemlo Gold Mine
Commodity
gold
Region
canada_on
Reported Region
Ontario, Canada
Ticker
HMMC

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Dr. Raphael Dutaut, Mr. Brian Hartman
Resource group id
resource:c35fb3ac575f30845a40
Deposit or zone
Underground (ex. Interlake)
Mining method
combined

Resource Data

Category
measured
Tonnes
5095000
Grade
3.4
Grade Unit
g/t
Contained Metal
557
Contained Unit
koz
Cutoff Grade
1.8
Cutoff Unit
g/t Au

Prior Estimate

Resource Date
2025-12-31
Prior Cutoff Grade
2.4

Lab

Laboratory
ALS Laboratories

Review

Needs Review
No
Historical
No

Dates

Event date
2026-06-25T00:00:00.000Z

Reasoning: The Measured resource for the Underground (ex. Interlake) area provides high confidence, though the increase is partly influenced by lower cut-off grades and higher gold price assumptions.

Positive factors

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

Negative factors

  • Cut-off Lowered
  • Gold Price Increase

Evidence · table

“5,095”

Context: 3.40

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

Cut-off Lowerednegative

Cut-off grade significantly reduced vs prior estimate — tonnage growth may be artificial inflation.

Why it applies: 1.8 against 2.4 previously

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

indicatedHemlo Gold Mine · goldTonnes: 13676000Grade: 3.42Grade Unit: g/tContained Metal: 1502Contained Unit: kozView all details
Link to this fact

Identity

Project
Hemlo Gold Mine
Commodity
gold
Region
canada_on
Reported Region
Ontario, Canada
Ticker
HMMC

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Dr. Raphael Dutaut, Mr. Brian Hartman
Resource group id
resource:5a3670ee579dfe26186f
Deposit or zone
Underground (ex. Interlake)
Mining method
combined

Resource Data

Category
indicated
Tonnes
13676000
Grade
3.42
Grade Unit
g/t
Contained Metal
1502
Contained Unit
koz
Cutoff Grade
1.8
Cutoff Unit
g/t Au

Prior Estimate

Resource Date
2025-12-31
Prior Cutoff Grade
2.4

Lab

Laboratory
ALS Laboratories

Review

Needs Review
No
Historical
No

Dates

Event date
2026-06-25T00:00:00.000Z

Reasoning: The Indicated resource for the Underground (ex. Interlake) area shows good contained gold, contributing to the overall MRE growth, though influenced by lower cut-off grades and higher gold price assumptions.

Positive factors

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

Negative factors

  • Cut-off Lowered
  • Gold Price Increase

Evidence · table

“13,676”

Context: 3.42

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

Cut-off Lowerednegative

Cut-off grade significantly reduced vs prior estimate — tonnage growth may be artificial inflation.

Why it applies: 1.8 against 2.4 previously

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

measuredHemlo Gold Mine · goldTonnes: 2085000Grade: 4.1Grade Unit: g/tContained Metal: 275Contained Unit: kozView all details
Link to this fact

Identity

Project
Hemlo Gold Mine
Commodity
gold
Region
canada_on
Reported Region
Ontario, Canada
Ticker
HMMC

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Dr. Raphael Dutaut, Mr. Brian Hartman
Resource group id
resource:14610b962ff96bfe7f5d
Deposit or zone
Interlake Claims
Mining method
combined

Resource Data

Category
measured
Tonnes
2085000
Grade
4.1
Grade Unit
g/t
Contained Metal
275
Contained Unit
koz
Cutoff Grade
1.8
Cutoff Unit
g/t Au

Prior Estimate

Resource Date
2025-12-31
Prior Cutoff Grade
2.4

Lab

Laboratory
ALS Laboratories

Review

Needs Review
No
Historical
No

Dates

Event date
2026-06-25T00:00:00.000Z

Reasoning: The Measured resource for the Interlake Claims shows high-grade gold, contributing to the overall MRE, though influenced by lower cut-off grades and higher gold price assumptions.

Positive factors

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

Negative factors

  • Cut-off Lowered
  • Gold Price Increase

Evidence · table

“2,085”

Context: 4.10

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

Cut-off Lowerednegative

Cut-off grade significantly reduced vs prior estimate — tonnage growth may be artificial inflation.

Why it applies: 1.8 against 2.4 previously

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

indicatedHemlo Gold Mine · goldTonnes: 4087000Grade: 3.8Grade Unit: g/tContained Metal: 499Contained Unit: kozView all details
Link to this fact

Identity

Project
Hemlo Gold Mine
Commodity
gold
Region
canada_on
Reported Region
Ontario, Canada
Ticker
HMMC

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Dr. Raphael Dutaut, Mr. Brian Hartman
Resource group id
resource:465b57435ae27c4d2b83
Deposit or zone
Interlake Claims
Mining method
combined

Resource Data

Category
indicated
Tonnes
4087000
Grade
3.8
Grade Unit
g/t
Contained Metal
499
Contained Unit
koz
Cutoff Grade
1.8
Cutoff Unit
g/t Au

Prior Estimate

Resource Date
2025-12-31
Prior Cutoff Grade
2.4

Lab

Laboratory
ALS Laboratories

Review

Needs Review
No
Historical
No

Dates

Event date
2026-06-25T00:00:00.000Z

Reasoning: The Indicated resource for the Interlake Claims shows good contained gold, contributing to the overall MRE, though influenced by lower cut-off grades and higher gold price assumptions.

Positive factors

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

Negative factors

  • Cut-off Lowered
  • Gold Price Increase

Evidence · table

“4,087”

Context: 3.80

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

Cut-off Lowerednegative

Cut-off grade significantly reduced vs prior estimate — tonnage growth may be artificial inflation.

Why it applies: 1.8 against 2.4 previously

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

measuredHemlo Gold Mine · goldTonnes: 7180000Grade: 3.6Grade Unit: g/tContained Metal: 832Contained Unit: kozView all details
Link to this fact

Identity

Project
Hemlo Gold Mine
Commodity
gold
Region
canada_on
Reported Region
Ontario, Canada
Ticker
HMMC

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Dr. Raphael Dutaut, Mr. Brian Hartman
Resource group id
resource:ea39783d2c7e4fc5f8c4
Mining method
combined

Resource Data

Category
measured
Tonnes
7180000
Grade
3.6
Grade Unit
g/t
Contained Metal
832
Contained Unit
koz
Cutoff Grade
1.8
Cutoff Unit
g/t Au

Prior Estimate

Resource Date
2025-12-31
Prior Contained Metal
2000
Prior Cutoff Grade
2.4

Lab

Laboratory
ALS Laboratories

Review

Needs Review
No
Historical
No

Dates

Event date
2026-06-25T00:00:00.000Z

Reasoning: The Total Underground Measured resource shows good contained gold, contributing to the overall MRE growth, though influenced by lower cut-off grades and higher gold price assumptions.

Positive factors

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

Negative factors

  • Cut-off Lowered
  • Gold Price Increase

Evidence · table

“7,180”

Context: 3.60

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

Contained Metal Declinenegative

Contained metal decreased vs prior despite tonnage growth — grade dilution exceeds volume gain.

Why it applies: 832 against 2000 previously

Cut-off Lowerednegative

Cut-off grade significantly reduced vs prior estimate — tonnage growth may be artificial inflation.

Why it applies: 1.8 against 2.4 previously

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

indicatedHemlo Gold Mine · goldTonnes: 17763000Grade: 3.5Grade Unit: g/tContained Metal: 2000Contained Unit: kozView all details
Link to this fact

Identity

Project
Hemlo Gold Mine
Commodity
gold
Region
canada_on
Reported Region
Ontario, Canada
Ticker
HMMC

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Dr. Raphael Dutaut, Mr. Brian Hartman
Resource group id
resource:7b4af51d7acd3d16dee3
Mining method
combined

Resource Data

Category
indicated
Tonnes
17763000
Grade
3.5
Grade Unit
g/t
Contained Metal
2000
Contained Unit
koz
Cutoff Grade
1.8
Cutoff Unit
g/t Au

Prior Estimate

Resource Date
2025-12-31
Prior Contained Metal
2000
Prior Cutoff Grade
2.4

Lab

Laboratory
ALS Laboratories

Review

Needs Review
No
Historical
No

Dates

Event date
2026-06-25T00:00:00.000Z

Reasoning: The Total Underground Indicated resource shows good contained gold, contributing to the overall MRE growth, though influenced by lower cut-off grades and higher gold price assumptions.

Positive factors

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

Negative factors

  • Cut-off Lowered
  • Gold Price Increase

Evidence · table

“17,763”

Context: 3.50

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

Cut-off Lowerednegative

Cut-off grade significantly reduced vs prior estimate — tonnage growth may be artificial inflation.

Why it applies: 1.8 against 2.4 previously

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

measuredHemlo Gold Mine · goldTonnes: 7180000Grade: 3.6Grade Unit: g/tContained Metal: 832Contained Unit: kozView all details
Link to this fact

Identity

Project
Hemlo Gold Mine
Commodity
gold
Region
canada_on
Reported Region
Ontario, Canada
Ticker
HMMC

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Dr. Raphael Dutaut, Mr. Brian Hartman
Resource group id
resource:ea39783d2c7e4fc5f8c4
Mining method
combined

Resource Data

Category
measured
Tonnes
7180000
Grade
3.6
Grade Unit
g/t
Contained Metal
832
Contained Unit
koz

Prior Estimate

Resource Date
2025-12-31

Lab

Laboratory
ALS Laboratories

Review

Needs Review
No
Historical
No

Dates

Event date
2026-06-25T00:00:00.000Z

Reasoning: The total Measured resource provides high confidence for a portion of the overall MRE.

Positive factors

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

Evidence · table

“7,180”

Context: 3.60

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 Undisclosednegative

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

Why it applies: no cutoff_grade was 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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

indicatedHemlo Gold Mine · goldTonnes: 89686000Grade: 1.39Grade Unit: g/tContained Metal: 4009Contained Unit: kozView all details
Link to this fact

Identity

Project
Hemlo Gold Mine
Commodity
gold
Region
canada_on
Reported Region
Ontario, Canada
Ticker
HMMC

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Dr. Raphael Dutaut, Mr. Brian Hartman
Resource group id
resource:89c78983210a5a2baab4
Mining method
combined

Resource Data

Category
indicated
Tonnes
89686000
Grade
1.39
Grade Unit
g/t
Contained Metal
4009
Contained Unit
koz

Prior Estimate

Resource Date
2025-12-31

Lab

Laboratory
ALS Laboratories

Review

Needs Review
No
Historical
No

Dates

Event date
2026-06-25T00:00:00.000Z

Reasoning: The total Indicated resource provides good confidence for a significant portion of the overall MRE.

Positive factors

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

Evidence · table

“89,686”

Context: 1.39

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

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

indicatedHemlo Gold Mine · goldTonnes: 96866000Grade: 1.55Grade Unit: g/tContained Metal: 4841Contained Unit: kozView all details
Link to this fact

Identity

Project
Hemlo Gold Mine
Commodity
gold
Region
canada_on
Reported Region
Ontario, Canada
Ticker
HMMC

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Dr. Raphael Dutaut, Mr. Brian Hartman
Resource group id
resource:1a323533afb35e89e178
Mining method
combined

Resource Data

Category
indicated
Tonnes
96866000
Grade
1.55
Grade Unit
g/t
Contained Metal
4841
Contained Unit
koz

Prior Estimate

Resource Date
2025-12-31
Prior Contained Metal
3600

Lab

Laboratory
ALS Laboratories

Review

Needs Review
No
Historical
No

Dates

Event date
2026-06-25T00:00:00.000Z

Reasoning: The total Measured & Indicated resource shows a significant increase in contained gold, contributing to the overall MRE growth, though influenced by lower cut-off grades and higher gold price assumptions.

Positive factors

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

Negative factors

  • Cut-off Lowered
  • Gold Price Increase

Evidence · text

“Measured & Indicated ("M&I") Mineral Resources (100% basis) of 96.9 million tonnes ("Mt") at 1.55 grams per tonne ("g/t") Au for 4.8 million ounces ("Moz") of gold ("Au")”

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

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: 4841 against 3600 previously

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

measuredHemlo Gold Mine · goldTonnes: 6137000Grade: 3.52Grade Unit: g/tContained Metal: 694Contained Unit: kozView all details
Link to this fact

Identity

Project
Hemlo Gold Mine
Commodity
gold
Region
canada_on
Reported Region
Ontario, Canada
Ticker
HMMC

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Dr. Raphael Dutaut, Mr. Brian Hartman
Resource group id
resource:d215be83bc7d5398e5f1
Mining method
combined
Resource basis
attributable

Resource Data

Category
measured
Tonnes
6137000
Grade
3.52
Grade Unit
g/t
Contained Metal
694
Contained Unit
koz

Prior Estimate

Resource Date
2025-12-31

Lab

Laboratory
ALS Laboratories

Review

Needs Review
No
Historical
No

Dates

Event date
2026-06-25T00:00:00.000Z

Reasoning: The total attributable Measured resource provides high confidence for a portion of the overall MRE, considering the 50% NPI royalty on Interlake Claims.

Positive factors

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

Evidence · table

“6,137”

Context: 3.52

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 Undisclosednegative

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

Why it applies: no cutoff_grade was 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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

indicatedHemlo Gold Mine · goldTonnes: 87643000Grade: 1.33Grade Unit: g/tContained Metal: 3760Contained Unit: kozView all details
Link to this fact

Identity

Project
Hemlo Gold Mine
Commodity
gold
Region
canada_on
Reported Region
Ontario, Canada
Ticker
HMMC

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Dr. Raphael Dutaut, Mr. Brian Hartman
Resource group id
resource:cc2a13a0788dcf74f157
Mining method
combined
Resource basis
attributable

Resource Data

Category
indicated
Tonnes
87643000
Grade
1.33
Grade Unit
g/t
Contained Metal
3760
Contained Unit
koz

Prior Estimate

Resource Date
2025-12-31

Lab

Laboratory
ALS Laboratories

Review

Needs Review
No
Historical
No

Dates

Event date
2026-06-25T00:00:00.000Z

Reasoning: The total attributable Indicated resource provides good confidence for a significant portion of the overall MRE, considering the 50% NPI royalty on Interlake Claims.

Positive factors

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

Evidence · table

“87,643”

Context: 1.33

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

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

inferredHemlo Gold Mine · goldTonnes: 3988000Grade: 0.57Grade Unit: g/tContained Metal: 73Contained Unit: kozView all details
Link to this fact

Identity

Project
Hemlo Gold Mine
Commodity
gold
Region
canada_on
Reported Region
Ontario, Canada
Ticker
HMMC

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Dr. Raphael Dutaut, Mr. Brian Hartman
Resource group id
resource:39f4375200d3acffc935
Deposit or zone
Open Pit
Mining method
combined

Resource Data

Category
inferred
Tonnes
3988000
Grade
0.57
Grade Unit
g/t
Contained Metal
73
Contained Unit
koz
Cutoff Grade
0.28
Cutoff Unit
g/t Au

Prior Estimate

Resource Date
2025-12-31
Prior Contained Metal
120
Prior Cutoff Grade
0.36

Lab

Laboratory
ALS Laboratories

Review

Needs Review
No
Historical
No

Dates

Event date
2026-06-25T00:00:00.000Z

Reasoning: The Open Pit Inferred resource shows a decline in contained gold despite a lower cut-off grade and higher gold price, indicating a reduction in this category's potential.

Positive factors

  • QP/CP Signed
  • NI 43-101 Compliant

Negative factors

  • Inferred Resource
  • Contained Metal Decline
  • Cut-off Lowered
  • Gold Price Increase

Evidence · table

“3,988”

Context: 0.57

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

Contained Metal Declinenegative

Contained metal decreased vs prior despite tonnage growth — grade dilution exceeds volume gain.

Why it applies: 73 against 120 previously

Cut-off Lowerednegative

Cut-off grade significantly reduced vs prior estimate — tonnage growth may be artificial inflation.

Why it applies: 0.28 against 0.36 previously

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

inferredHemlo Gold Mine · goldTonnes: 5810000Grade: 2.81Grade Unit: g/tContained Metal: 525Contained Unit: kozView all details
Link to this fact

Identity

Project
Hemlo Gold Mine
Commodity
gold
Region
canada_on
Reported Region
Ontario, Canada
Ticker
HMMC

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Dr. Raphael Dutaut, Mr. Brian Hartman
Resource group id
resource:80f0f30da3246a237cd9
Deposit or zone
Underground (ex. Interlake)
Mining method
combined

Resource Data

Category
inferred
Tonnes
5810000
Grade
2.81
Grade Unit
g/t
Contained Metal
525
Contained Unit
koz
Cutoff Grade
1.8
Cutoff Unit
g/t Au

Prior Estimate

Resource Date
2025-12-31
Prior Contained Metal
540
Prior Cutoff Grade
2.4

Lab

Laboratory
ALS Laboratories

Review

Needs Review
No
Historical
No

Dates

Event date
2026-06-25T00:00:00.000Z

Reasoning: The Underground (ex. Interlake) Inferred resource shows good grade, contributing to the overall MRE, though influenced by lower cut-off grades and higher gold price assumptions.

Positive factors

  • QP/CP Signed
  • NI 43-101 Compliant

Negative factors

  • Inferred Resource
  • Cut-off Lowered
  • Gold Price Increase

Evidence · table

“5,810”

Context: 2.81

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

Contained Metal Declinenegative

Contained metal decreased vs prior despite tonnage growth — grade dilution exceeds volume gain.

Why it applies: 525 against 540 previously

Cut-off Lowerednegative

Cut-off grade significantly reduced vs prior estimate — tonnage growth may be artificial inflation.

Why it applies: 1.8 against 2.4 previously

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

inferredHemlo Gold Mine · goldTonnes: 2330000Grade: 3.58Grade Unit: g/tContained Metal: 268Contained Unit: kozView all details
Link to this fact

Identity

Project
Hemlo Gold Mine
Commodity
gold
Region
canada_on
Reported Region
Ontario, Canada
Ticker
HMMC

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Dr. Raphael Dutaut, Mr. Brian Hartman
Resource group id
resource:c32606f3a9a3d716ac12
Deposit or zone
Interlake Claims
Mining method
combined

Resource Data

Category
inferred
Tonnes
2330000
Grade
3.58
Grade Unit
g/t
Contained Metal
268
Contained Unit
koz
Cutoff Grade
1.8
Cutoff Unit
g/t Au

Prior Estimate

Resource Date
2025-12-31
Prior Cutoff Grade
2.4

Lab

Laboratory
ALS Laboratories

Review

Needs Review
No
Historical
No

Dates

Event date
2026-06-25T00:00:00.000Z

Reasoning: The Interlake Claims Inferred resource shows good grade, contributing to the overall MRE, though influenced by lower cut-off grades and higher gold price assumptions.

Positive factors

  • QP/CP Signed
  • NI 43-101 Compliant

Negative factors

  • Inferred Resource
  • Cut-off Lowered
  • Gold Price Increase

Evidence · table

“2,330”

Context: 3.58

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

Cut-off Lowerednegative

Cut-off grade significantly reduced vs prior estimate — tonnage growth may be artificial inflation.

Why it applies: 1.8 against 2.4 previously

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

inferredHemlo Gold Mine · goldTonnes: 8140000Grade: 3.03Grade Unit: g/tContained Metal: 793Contained Unit: kozView all details
Link to this fact

Identity

Project
Hemlo Gold Mine
Commodity
gold
Region
canada_on
Reported Region
Ontario, Canada
Ticker
HMMC

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Dr. Raphael Dutaut, Mr. Brian Hartman
Resource group id
resource:4d179cff0e17312971e1
Mining method
combined

Resource Data

Category
inferred
Tonnes
8140000
Grade
3.03
Grade Unit
g/t
Contained Metal
793
Contained Unit
koz
Cutoff Grade
1.8
Cutoff Unit
g/t Au

Prior Estimate

Resource Date
2025-12-31
Prior Contained Metal
540
Prior Cutoff Grade
2.4

Lab

Laboratory
ALS Laboratories

Review

Needs Review
No
Historical
No

Dates

Event date
2026-06-25T00:00:00.000Z

Reasoning: The Total Underground Inferred resource shows a significant increase in contained gold, contributing to the overall MRE growth, though influenced by lower cut-off grades and higher gold price assumptions.

Positive factors

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

Negative factors

  • Inferred Resource
  • Cut-off Lowered
  • Gold Price Increase

Evidence · table

“8,140”

Context: 3.03

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

Contained Metal Growthpositive

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

Why it applies: 793 against 540 previously

Cut-off Lowerednegative

Cut-off grade significantly reduced vs prior estimate — tonnage growth may be artificial inflation.

Why it applies: 1.8 against 2.4 previously

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

inferredHemlo Gold Mine · goldTonnes: 12128000Grade: 2.22Grade Unit: g/tContained Metal: 866Contained Unit: kozView all details
Link to this fact

Identity

Project
Hemlo Gold Mine
Commodity
gold
Region
canada_on
Reported Region
Ontario, Canada
Ticker
HMMC

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Dr. Raphael Dutaut, Mr. Brian Hartman
Resource group id
resource:fbd6693c5049d407a733
Mining method
combined

Resource Data

Category
inferred
Tonnes
12128000
Grade
2.22
Grade Unit
g/t
Contained Metal
866
Contained Unit
koz

Prior Estimate

Resource Date
2025-12-31
Prior Contained Metal
658

Lab

Laboratory
ALS Laboratories

Review

Needs Review
No
Historical
No

Dates

Event date
2026-06-25T00:00:00.000Z

Reasoning: The total Inferred resource shows a significant increase in contained gold, contributing to the overall MRE growth, though influenced by lower cut-off grades and higher gold price assumptions.

Positive factors

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

Negative factors

  • Inferred Resource
  • Cut-off Lowered
  • Gold Price Increase

Evidence · text

“Inferred Mineral Resources (100% basis) of 12.1 Mt at 2.22 g/t Au for 0.9 Moz Au”

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

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: 866 against 658 previously

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

inferredHemlo Gold Mine · goldTonnes: 10963000Grade: 2.08Grade Unit: g/tContained Metal: 732Contained Unit: kozView all details
Link to this fact

Identity

Project
Hemlo Gold Mine
Commodity
gold
Region
canada_on
Reported Region
Ontario, Canada
Ticker
HMMC

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Dr. Raphael Dutaut, Mr. Brian Hartman
Resource group id
resource:4060d03170cb631f7d6f
Mining method
combined
Resource basis
attributable

Resource Data

Category
inferred
Tonnes
10963000
Grade
2.08
Grade Unit
g/t
Contained Metal
732
Contained Unit
koz

Prior Estimate

Resource Date
2025-12-31

Lab

Laboratory
ALS Laboratories

Review

Needs Review
No
Historical
No

Dates

Event date
2026-06-25T00:00:00.000Z

Reasoning: The total attributable Inferred resource shows a significant increase in contained gold, contributing to the overall MRE growth, though influenced by lower cut-off grades and higher gold price assumptions.

Positive factors

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

Negative factors

  • Inferred Resource
  • Cut-off Lowered
  • Gold Price Increase

Evidence · table

“10,963”

Context: 2.08

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

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

inferredHemlo Gold Mine · goldTonnes: 635000Grade: 3.43Grade Unit: g/tContained Metal: 70000Contained Unit: ozView all details
Link to this fact

Identity

Project
Hemlo Gold Mine
Commodity
gold
Region
canada_on
Reported Region
Ontario, Canada
Ticker
HMMC

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Dr. Raphael Dutaut, Mr. Brian Hartman
Resource group id
resource:1e8b8441dc0e3f13a656
Deposit or zone
A-Zone
Mining method
combined

Resource Data

Category
inferred
Tonnes
635000
Grade
3.43
Grade Unit
g/t
Contained Metal
70000
Contained Unit
oz
Cutoff Grade
1.8
Cutoff Unit
g/t Au

Prior Estimate

Resource Date
2025-12-31

Lab

Laboratory
ALS Laboratories

Review

Needs Review
No
Historical
No

Dates

Event date
2026-06-25T00:00:00.000Z

Reasoning: The newly identified A-Zone contributes a significant amount of high-grade Inferred gold resource, representing new exploration potential for the mine.

Positive factors

  • New Zone Identified
  • QP/CP Signed
  • NI 43-101 Compliant

Negative factors

  • Inferred Resource

Evidence · text

“"A-Zone" (newly identified by the Company's Lead Director, Dr. Robert Quartermain) included in the Inferred MRE; 635,000 tonnes at 3.43 g/t Au for 70,000 oz Au”

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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.