Vanstar Announces Updated Resource Estimate at Nelligan - Growing Gold Resources by 63% with 2.0 Moz Indicated and 3.2 Moz Inferred Resources
Original announcement by tmx on
- Company
- Vanstar Mining Resources Inc.
- Ticker
- VSR
- Exchange
- TSX
- Region
- Quebec, Canada
- Primary commodity
- Gold
- Secondary commodities
- None reported
- Document categories
- Resource update
- Extracted
- 2026-09-13 07:01:07 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Vanstar has announced an updated Mineral Resource Estimate for the Nelligan Project, growing total gold resources by 63% to 5.2 million ounces. The update includes 2.0 Moz of Indicated and 3.2 Moz of Inferred resources, driven by a 92% increase in tonnage and significant resource category conversion.
Reasoning: The update shows substantial growth in total gold metal content and a significant de-risking through the conversion of Inferred resources to Indicated.
Positive factors
- Significant tonnage growth (92%)
- Significant contained metal growth (63%)
- Category upgrade (62% of Inferred converted to Indicated)
- Expansion potential noted along strike and at depth
Negative factors
- Grade decline (15%) due to lower cut-off grade
Facts used in scoring: 3
Classification and evidence
Category Upgradepositive
Resource confidence improved — Inferred upgraded to Indicated, or Indicated to Measured. De-risking signal.
Why it applies: 62% of Inferred Mineral Resources were converted to Indicated category relative to the 2019 estimate.
Evidence · text
“conversion of 62% of Inferred Mineral Resources to an Indicated Mineral Resource category”
Tonnage Growthpositive
Tonnage increase reaching the strong tier vs prior estimate, with grade maintained or improved.
Why it applies: Mineral Resources increased by 92% in tonnage relative to the 2019 estimate.
Evidence · text
“Mineral Resources have increased by 92% in tonnage”
Contained Metal Growthpositive
True scale improvement — contained metal ounces/tonnes increased vs prior, accounting for both tonnage and grade changes.
Why it applies: Overall gain of 63% in metal content relative to the 2019 estimate.
Evidence · text
“overall gain of 63% in metal content”
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: Estimate completed in accordance with NI 43-101 standards.
Evidence · text
“in accordance with the Canadian Institute of Mining, Metallurgy and Petroleum ("CIM") Definition Standards incorporated by reference in National Instrument 43-101”
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: Multiple Qualified Persons (Sandeep Prakash, Oy Leuangthong, etc.) are named and have reviewed/approved the release.
Evidence · text
“Mr. Prakash and Dr. Leuangthong are independent "qualified person", as defined by NI 43-101 (a "QP")”
Extracted facts
Stored fact records: 3. Some facts used in scoring do not have a stored record.
Resource Estimates (3)
indicatedNelligan · goldTonnes: 72200000Grade: 0.85Grade Unit: g/tContained Metal: 1.97Contained Unit: mozView all detailsHide details
Identity
- Project
- Nelligan
- Commodity
- gold
- Region
- canada_qc
- Reported Region
- Quebec, Canada
- Ticker
- VSR
Resource scope
- Estimate type
- resource
- Reporting standards
- ni_43_101
- QP Signed
- Yes
- Qualified person names
- Sandeep Prakash, Oy Leuangthong, Maxime Douëllou, Shana Dickenson, Gilles Laverdière
- Resource group id
- resource:ebe175d9dd6696e6aba1
- Deposit or zone
- Nelligan
Resource Data
- Category
- indicated
- Tonnes
- 72200000
- Grade
- 0.85
- Grade Unit
- g/t
- Contained Metal
- 1.97
- Contained Unit
- moz
- Cutoff Grade
- 0.35
- Cutoff Unit
- g/t Au
Prior Estimate
- Resource Date
- 2022-12-31
Lab
- Laboratory
- ALS
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2023-01-12T00:00:00.000Z
Reasoning: Strong Indicated resource component at a 0.35 g/t cut-off.
Positive factors
- Significant tonnage increase
Evidence · table
“0.85”
Context: 72.2
Tags used in scoring
Indicated Resourcepositive
Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.
Why it applies: category is "indicated"
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: cutoff_grade is stated
QP/CP Signedpositive
Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.
Why it applies: qp_signed is true
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: reporting_standards includes ni_43_101
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: the release compares against a previous estimate
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
inferredNelligan · goldTonnes: 114100000Grade: 0.88Grade Unit: g/tContained Metal: 3238Contained Unit: koz auView all detailsHide details
Identity
- Project
- Nelligan
- Commodity
- gold
- Region
- canada_qc
- Reported Region
- Quebec, Canada
- Ticker
- VSR
Resource scope
- Estimate type
- resource
- Reporting standards
- ni_43_101
- QP Signed
- Yes
- Qualified person names
- Sandeep Prakash, Oy Leuangthong, Maxime Douëllou, Shana Dickenson, Gilles Laverdière
- Resource group id
- resource:8c7af0084cf6ef1f1fdc
- Deposit or zone
- Nelligan
Resource Data
- Category
- inferred
- Tonnes
- 114100000
- Grade
- 0.88
- Grade Unit
- g/t
- Contained Metal
- 3238
- Contained Unit
- koz au
- Cutoff Grade
- 0.35
- Cutoff Unit
- g/t Au
Prior Estimate
- Resource Date
- 2022-12-31
Lab
- Laboratory
- ALS
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2023-01-12T00:00:00.000Z
Reasoning: Large Inferred resource base providing significant upside.
Positive factors
- Large scale inferred resource
Evidence · table
“0.88”
Context: 114.1
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
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
inferredNelligan · goldTonnes: 97000000Grade: 1.02Grade Unit: g/tContained Metal: 3.2Contained Unit: mozHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Nelligan
- Commodity
- gold
- Region
- canada_qc
- Reported Region
- Quebec, Canada
- Ticker
- VSR
Resource scope
- Estimate type
- resource
- Resource group id
- resource:96bf3e21bedddecfa09a
Resource Data
- Category
- inferred
- Tonnes
- 97000000
- Grade
- 1.02
- Grade Unit
- g/t
- Contained Metal
- 3.2
- Contained Unit
- moz
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2019-10-22T00:00:00.000Z
Dates
- Event date
- 2023-01-12T00:00:00.000Z
Reasoning: Historical reference for comparison.
Negative factors
- Stale data
Evidence · text
“97.0 million tonnes grading 1.02 g/t Au for 3.2 million contained ounces”
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
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: the release compares against a previous estimate
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.2 years before this release
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.