Hemlo Mining Corp. Announces Increased Mineral Resource Estimate for the Hemlo Gold Mine
Original announcement by tmx on
- Company
- Hemlo Mining Corp.
- Ticker
- HMMC
- Exchange
- TSX
- Region
- Ontario
- Primary commodity
- Gold
- Secondary commodities
- None reported
- Document categories
- Resource update
- Extracted
- 2026-08-24 05:11:07 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Hemlo Mining Corp. announced an updated Mineral Resource Estimate for its Hemlo Gold Mine, reporting a significant 34% increase in Measured & Indicated gold resources to 4.8 million ounces and a 39% increase in Inferred resources to 0.9 million ounces. This growth is attributed to additional drilling, geological reinterpretation, and updated economic assumptions including a higher gold price and lower cut-off grades. The company plans further drilling to support a comprehensive resource and reserve update in late 2027.
Reasoning: The updated Mineral Resource Estimate for the Hemlo Gold Mine demonstrates substantial growth in both Measured & Indicated and Inferred gold ounces, reflecting successful drilling, geological reinterpretation, and the identification of new mineralized zones. While some growth is attributed to updated economic assumptions and lower cut-off grades, the overall increase and high confidence in the M&I category are positive indicators for the mine's future.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Facts used in scoring: 27
Classification and evidence
Contained Metal Growthpositive
True scale improvement — contained metal ounces/tonnes increased vs prior, accounting for both tonnage and grade changes.
Why it applies: M&I Mineral Resources increased by 1.2 Moz, or +34%, compared to the 2025 Report, and Inferred Mineral Resources increased by 242,000 oz, or +39%.
Evidence · text
“represents an increase of 1.2 Moz, or +34%, compared to the 2025 Report. Underground: 24.9 Mt at 3.53 g/t Au for 2.8 Moz (+40% vs. 2025 Report) Open Pit: 71.9 Mt at 0.87 g/t Au for 2.0 Moz (+25% vs. 2025 Report) Inferred Mineral Resources (100% basis) of 12.1 Mt at 2.22 g/t Au for 0.9 Moz Au; represents an increase of 242,000 oz, or +39%, 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: Mr. Brian Hartman (P. Geo.) of SLR Consulting (Canada) Ltd. is named as the Qualified Person responsible for the Mineral Resource Estimate.
Evidence · text
“The qualified person ("QP") responsible for this Mineral Resource Estimate is Mr. Brian Hartman (P. Geo.) of SLR Consulting (Canada) Ltd.”
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 CIM Standards and Mr. Hartman is an Independent Qualified Person within the meaning of NI 43-101.
Evidence · text
“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. The MRE was prepared under supervision of Brian Hartman, M.Sc., P.Geo., Principal Resource Geologist at SLR Consulting (Canada) Ltd. Mr. Hartman is an Independent Qualified Person within the meaning of NI 43-101 (as defined herein).”
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: The document explicitly states the gold cut-off grades for both Open Pit (0.28 g/t) and Underground (1.8 g/t) 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.”
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: The announcement explicitly states it is an 'updated Mineral Resource Estimate' for the Hemlo Gold Mine.
Evidence · text
“Hemlo Mining Corp. Announces Increased Mineral Resource Estimate for the Hemlo Gold Mine”
Cut-off Lowerednegative
Cut-off grade significantly reduced vs prior estimate — tonnage growth may be artificial inflation.
Why it applies: The resource growth is partly attributed to the 'application of lower cut-off grades' and the sensitivity table shows lower cut-offs for the current $2500/oz gold price compared to the previous $1900/oz gold price.
Evidence · text
“These results reflect the success of recent drilling, enhanced geological reinterpretation, and the application of lower cut-off grades, which have defined larger, more continuous mining areas.”
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 Inferred Mineral Resource component of 12.1 Mt at 2.22 g/t Au for 0.9 Moz Au.
Evidence · text
“Inferred Mineral Resources (100% basis) of 12.1 Mt at 2.22 g/t Au for 0.9 Moz Au”
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: The MRE is intended to 'extend mine life, optimize mining operations, and enhance long-term shareholder value' and will form the foundation of a comprehensive update targeted for the second half of 2027, supporting 'future mine planning'.
Evidence · text
“The MRE advances the Company's multi-year strategy to expand Mineral Resources and Mineral Reserves ("MRMR"), extend mine life, optimize mining operations, and enhance long-term shareholder value.”
Measured Resourcepositive
Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves.
Why it applies: The MRE includes a Measured Mineral Resource component, with 7.18 Mt at 3.60 g/t Au for 832 koz Au (Total Measured).
Evidence · table
“7,180”
Context: Total Underground
Indicated Resourcepositive
Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.
Why it applies: The MRE includes a significant Indicated Mineral Resource component, with 89.686 Mt at 1.39 g/t Au for 4,009 koz Au (Total Indicated).
Evidence · table
“89,686”
Context: Total
Extracted facts
Stored fact records: 27. Some facts used in scoring do not have a stored record.
Resource Estimates (27)
measuredHemlo Gold Mine · goldTonnes: 5095000Grade: 3.4Grade Unit: g/tContained Metal: 557Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- measured
- Tonnes
- 5095000
- Grade
- 3.4
- Grade Unit
- g/t
- Contained Metal
- 557
- Contained Unit
- koz Au
- Cutoff Grade
- 1.8
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Measured resource for the Underground (ex. Interlake) area contributes to the overall significant increase in the Hemlo Gold Mine's M&I resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“3.40”
Context: 5,095
measuredHemlo Gold Mine · goldTonnes: 2085000Grade: 4.1Grade Unit: g/tContained Metal: 275Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- measured
- Tonnes
- 2085000
- Grade
- 4.1
- Grade Unit
- g/t
- Contained Metal
- 275
- Contained Unit
- koz Au
- Cutoff Grade
- 1.8
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Measured resource for the Interlake Claims area contributes to the overall significant increase in the Hemlo Gold Mine's M&I resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“4.10”
Context: 2,085
measuredHemlo Gold Mine · goldTonnes: 7180000Grade: 3.6Grade Unit: g/tContained Metal: 832Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- measured
- Tonnes
- 7180000
- Grade
- 3.6
- Grade Unit
- g/t
- Contained Metal
- 832
- Contained Unit
- koz Au
- Cutoff Grade
- 1.8
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Total Underground Measured resource contributes to the overall significant increase in the Hemlo Gold Mine's M&I resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“3.60”
Context: 7,180
measuredHemlo Gold Mine · goldTonnes: 7180000Grade: 3.6Grade Unit: g/tContained Metal: 832Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- measured
- Tonnes
- 7180000
- Grade
- 3.6
- Grade Unit
- g/t
- Contained Metal
- 832
- Contained Unit
- koz Au
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Total Measured resource contributes to the overall significant increase in the Hemlo Gold Mine's M&I resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“3.60”
Context: 7,180
measuredHemlo Gold Mine · goldTonnes: 1042000Grade: 4.1Grade Unit: g/tContained Metal: 137Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- measured
- Tonnes
- 1042000
- Grade
- 4.1
- Grade Unit
- g/t
- Contained Metal
- 137
- Contained Unit
- koz Au
- Cutoff Grade
- 1.8
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Measured resource for the 'Less: 50% Interlake' category contributes to the overall significant increase in the Hemlo Gold Mine's M&I resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“4.10”
Context: 1,042
measuredHemlo Gold Mine · goldTonnes: 6137000Grade: 3.52Grade Unit: g/tContained Metal: 694Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- measured
- Tonnes
- 6137000
- Grade
- 3.52
- Grade Unit
- g/t
- Contained Metal
- 694
- Contained Unit
- koz Au
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Total Attributable Measured resource contributes to the overall significant increase in the Hemlo Gold Mine's M&I resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“3.52”
Context: 6,137
indicatedHemlo Gold Mine · goldTonnes: 71923000Grade: 0.87Grade Unit: g/tContained Metal: 2009Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- indicated
- Tonnes
- 71923000
- Grade
- 0.87
- Grade Unit
- g/t
- Contained Metal
- 2009
- Contained Unit
- koz Au
- Cutoff Grade
- 0.28
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Indicated Open Pit resource contributes to the overall significant increase in the Hemlo Gold Mine's M&I resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“0.87”
Context: 71,923
indicatedHemlo Gold Mine · goldTonnes: 13676000Grade: 3.42Grade Unit: g/tContained Metal: 1502Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- indicated
- Tonnes
- 13676000
- Grade
- 3.42
- Grade Unit
- g/t
- Contained Metal
- 1502
- Contained Unit
- koz Au
- Cutoff Grade
- 1.8
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Indicated resource for the Underground (ex. Interlake) area contributes to the overall significant increase in the Hemlo Gold Mine's M&I resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“3.42”
Context: 13,676
indicatedHemlo Gold Mine · goldTonnes: 4087000Grade: 3.8Grade Unit: g/tContained Metal: 499Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- indicated
- Tonnes
- 4087000
- Grade
- 3.8
- Grade Unit
- g/t
- Contained Metal
- 499
- Contained Unit
- koz Au
- Cutoff Grade
- 1.8
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Indicated resource for the Interlake Claims area contributes to the overall significant increase in the Hemlo Gold Mine's M&I resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“3.80”
Context: 4,087
indicatedHemlo Gold Mine · goldTonnes: 17763000Grade: 3.5Grade Unit: g/tContained Metal: 2000Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- indicated
- Tonnes
- 17763000
- Grade
- 3.5
- Grade Unit
- g/t
- Contained Metal
- 2000
- Contained Unit
- koz Au
- Cutoff Grade
- 1.8
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Total Underground Indicated resource contributes to the overall significant increase in the Hemlo Gold Mine's M&I resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“3.50”
Context: 17,763
indicatedHemlo Gold Mine · goldTonnes: 89686000Grade: 1.39Grade Unit: g/tContained Metal: 4009Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- indicated
- Tonnes
- 89686000
- Grade
- 1.39
- Grade Unit
- g/t
- Contained Metal
- 4009
- Contained Unit
- koz Au
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Total Indicated resource contributes to the overall significant increase in the Hemlo Gold Mine's M&I resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“1.39”
Context: 89,686
indicatedHemlo Gold Mine · goldTonnes: 2044000Grade: 3.8Grade Unit: g/tContained Metal: 249Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- indicated
- Tonnes
- 2044000
- Grade
- 3.8
- Grade Unit
- g/t
- Contained Metal
- 249
- Contained Unit
- koz Au
- Cutoff Grade
- 1.8
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Indicated resource for the 'Less: 50% Interlake' category contributes to the overall significant increase in the Hemlo Gold Mine's M&I resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“3.80”
Context: 2,044
indicatedHemlo Gold Mine · goldTonnes: 87643000Grade: 1.33Grade Unit: g/tContained Metal: 3760Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- indicated
- Tonnes
- 87643000
- Grade
- 1.33
- Grade Unit
- g/t
- Contained Metal
- 3760
- Contained Unit
- koz Au
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Total Attributable Indicated resource contributes to the overall significant increase in the Hemlo Gold Mine's M&I resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“1.33”
Context: 87,643
indicatedHemlo Gold Mine · goldTonnes: 71923000Grade: 0.87Grade Unit: g/tContained Metal: 2009Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- indicated
- Tonnes
- 71923000
- Grade
- 0.87
- Grade Unit
- g/t
- Contained Metal
- 2009
- Contained Unit
- koz Au
- Cutoff Grade
- 0.28
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Measured & Indicated Open Pit resource contributes to the overall significant increase in the Hemlo Gold Mine's M&I resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“0.87”
Context: 71,923
indicatedHemlo Gold Mine · goldTonnes: 18771000Grade: 3.41Grade Unit: g/tContained Metal: 2059Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- indicated
- Tonnes
- 18771000
- Grade
- 3.41
- Grade Unit
- g/t
- Contained Metal
- 2059
- Contained Unit
- koz Au
- Cutoff Grade
- 1.8
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Measured & Indicated resource for the Underground (ex. Interlake) area contributes to the overall significant increase in the Hemlo Gold Mine's M&I resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“3.41”
Context: 18,771
indicatedHemlo Gold Mine · goldTonnes: 6172000Grade: 3.9Grade Unit: g/tContained Metal: 774Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- indicated
- Tonnes
- 6172000
- Grade
- 3.9
- Grade Unit
- g/t
- Contained Metal
- 774
- Contained Unit
- koz Au
- Cutoff Grade
- 1.8
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Measured & Indicated resource for the Interlake Claims area contributes to the overall significant increase in the Hemlo Gold Mine's M&I resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“3.90”
Context: 6,172
indicatedHemlo Gold Mine · goldTonnes: 24943000Grade: 3.53Grade Unit: g/tContained Metal: 2832Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- indicated
- Tonnes
- 24943000
- Grade
- 3.53
- Grade Unit
- g/t
- Contained Metal
- 2832
- Contained Unit
- koz Au
- Cutoff Grade
- 1.8
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Total Underground Measured & Indicated resource contributes to the overall significant increase in the Hemlo Gold Mine's M&I resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“3.53”
Context: 24,943
indicatedHemlo Gold Mine · goldTonnes: 96866000Grade: 1.55Grade Unit: g/tContained Metal: 4841Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- indicated
- Tonnes
- 96866000
- Grade
- 1.55
- Grade Unit
- g/t
- Contained Metal
- 4841
- Contained Unit
- koz Au
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Total Measured & Indicated resource contributes to the overall significant increase in the Hemlo Gold Mine's M&I resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“1.55”
Context: 96,866
indicatedHemlo Gold Mine · goldTonnes: 3086000Grade: 3.9Grade Unit: g/tContained Metal: 387Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- indicated
- Tonnes
- 3086000
- Grade
- 3.9
- Grade Unit
- g/t
- Contained Metal
- 387
- Contained Unit
- koz Au
- Cutoff Grade
- 1.8
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Measured & Indicated resource for the 'Less: 50% Interlake' category contributes to the overall significant increase in the Hemlo Gold Mine's M&I resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“3.90”
Context: 3,086
indicatedHemlo Gold Mine · goldTonnes: 93780000Grade: 1.48Grade Unit: g/tContained Metal: 4454Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- indicated
- Tonnes
- 93780000
- Grade
- 1.48
- Grade Unit
- g/t
- Contained Metal
- 4454
- Contained Unit
- koz Au
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Total Attributable Measured & Indicated resource contributes to the overall significant increase in the Hemlo Gold Mine's M&I resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“1.48”
Context: 93,780
inferredHemlo Gold Mine · goldTonnes: 3988000Grade: 0.57Grade Unit: g/tContained Metal: 73Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- inferred
- Tonnes
- 3988000
- Grade
- 0.57
- Grade Unit
- g/t
- Contained Metal
- 73
- Contained Unit
- koz Au
- Cutoff Grade
- 0.28
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Inferred Open Pit resource contributes to the overall significant increase in the Hemlo Gold Mine's Inferred resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“0.57”
Context: 3,988
inferredHemlo Gold Mine · goldTonnes: 5810000Grade: 2.81Grade Unit: g/tContained Metal: 525Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- inferred
- Tonnes
- 5810000
- Grade
- 2.81
- Grade Unit
- g/t
- Contained Metal
- 525
- Contained Unit
- koz Au
- Cutoff Grade
- 1.8
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Inferred resource for the Underground (ex. Interlake) area contributes to the overall significant increase in the Hemlo Gold Mine's Inferred resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“2.81”
Context: 5,810
inferredHemlo Gold Mine · goldTonnes: 2330000Grade: 3.58Grade Unit: g/tContained Metal: 268Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- inferred
- Tonnes
- 2330000
- Grade
- 3.58
- Grade Unit
- g/t
- Contained Metal
- 268
- Contained Unit
- koz Au
- Cutoff Grade
- 1.8
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Inferred resource for the Interlake Claims area contributes to the overall significant increase in the Hemlo Gold Mine's Inferred resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“3.58”
Context: 2,330
inferredHemlo Gold Mine · goldTonnes: 8140000Grade: 3.03Grade Unit: g/tContained Metal: 793Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- inferred
- Tonnes
- 8140000
- Grade
- 3.03
- Grade Unit
- g/t
- Contained Metal
- 793
- Contained Unit
- koz Au
- Cutoff Grade
- 1.8
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Total Underground Inferred resource contributes to the overall significant increase in the Hemlo Gold Mine's Inferred resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“3.03”
Context: 8,140
inferredHemlo Gold Mine · goldTonnes: 12128000Grade: 2.22Grade Unit: g/tContained Metal: 866Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- inferred
- Tonnes
- 12128000
- Grade
- 2.22
- Grade Unit
- g/t
- Contained Metal
- 866
- Contained Unit
- koz Au
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Total Inferred resource contributes to the overall significant increase in the Hemlo Gold Mine's Inferred resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“2.22”
Context: 12,128
inferredHemlo Gold Mine · goldTonnes: 1165000Grade: 3.58Grade Unit: g/tContained Metal: 134Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- inferred
- Tonnes
- 1165000
- Grade
- 3.58
- Grade Unit
- g/t
- Contained Metal
- 134
- Contained Unit
- koz Au
- Cutoff Grade
- 1.8
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Inferred resource for the 'Less: 50% Interlake' category contributes to the overall significant increase in the Hemlo Gold Mine's Inferred resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“3.58”
Context: 1,165
inferredHemlo Gold Mine · goldTonnes: 10963000Grade: 2.08Grade Unit: g/tContained Metal: 732Contained Unit: koz AuView all detailsHide details
Identity
- Project
- Hemlo Gold Mine
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- HMMC
Resource Data
- Category
- inferred
- Tonnes
- 10963000
- Grade
- 2.08
- Grade Unit
- g/t
- Contained Metal
- 732
- Contained Unit
- koz Au
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-06-25T00:00:00.000Z
Reasoning: This Total Attributable Inferred resource contributes to the overall significant increase in the Hemlo Gold Mine's Inferred resource base.
Positive factors
- Significant increase in M&I and Inferred gold ounces (1.2 Moz M&I, 0.24 Moz Inferred).
- Incorporation of additional drilling data and geological reinterpretation.
- Identification of new A-Zone with exploration potential.
- High M&I percentage (88.9%) indicates strong geological confidence.
- NI 43-101 compliant and QP signed off.
- Cut-off grades and economic assumptions are clearly disclosed.
Negative factors
- Resource growth partially driven by higher gold price assumption (US$2,500/oz vs US$1,900/oz previously) and lower cut-off grades.
Evidence · table
“2.08”
Context: 10,963
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.