Blue Star Updates its Ulu Gold Project Mineral Resource Estimate

Original announcement by tmx on

Company
Blue Star Gold Corp.
Ticker
BAU
Exchange
TSX
Region
Nunavut, Canada
Primary commodity
Gold
Secondary commodities
None reported
Document categories
Resource update
Extracted
2026-08-20 22:49:17 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Blue Star Gold Corp. announced an updated Mineral Resource Estimate for its Ulu Gold Project in Nunavut, Canada, reporting 2.204 million tonnes at 7.87 g/t gold for 558,000 ounces in the Measured and Indicated categories. The Inferred Mineral Resource increased to 3.263 million tonnes at 4.54 g/t gold for 476,000 ounces, highlighting significant growth potential. The estimate incorporates revised geological interpretations and updated cut-off grades, prepared by independent Qualified Persons in compliance with NI 43-101 standards.

Reasoning: Blue Star Gold Corp. has reported a significant update to its Ulu Gold Project Mineral Resource Estimate, showing substantial growth in both Measured & Indicated and Inferred gold ounces at high average grades. The estimate was prepared by independent Qualified Persons under NI 43-101 standards, indicating high confidence. The disclosed cut-off grades and positive metallurgical outlook further support the project's potential.

Positive factors

  • Contained Metal Growth
  • Tonnage Growth
  • High Grade
  • QP/CP Signed
  • NI 43-101 Compliant
  • Cut-off Disclosed

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

Facts used in scoring: 21

Atlas analysis — Blue Star Gold Corp.: Blue Star Updates its Ulu Gold Project Mineral Resource Estimate. measured 441000 tonnes; indicated 200000 tonnes; inferred 142000 tonnes

Classification and evidence

Resource Updateneutral

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

Why it applies: The document announces an 'update to the Company's Mineral Resource Estimate'.

Evidence · text

“an update to the Company's Mineral Resource Estimate”

Tonnage Growthpositive

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

Why it applies: The CEO comments on 'an increase in Inferred ounces' and the overall 'growth potential' of the project.

Evidence · text

“increase in Inferred ounces, further reinforces the Project's potential for continued Mineral Resource expansion.”

Contained Metal Growthpositive

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

Why it applies: The CEO comments on 'an increase in Inferred ounces' and the overall 'growth potential' of the project.

Evidence · text

“increase in Inferred ounces, further reinforces the Project's potential for continued Mineral Resource expansion.”

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 document states that 'David Burga, P. Geo. (Nunavut #2272) from P&E Mining Consultants Inc. ... are independent Qualified Persons'.

Evidence · text

“The independent Qualified Person for the Mineral Resource Estimate, as defined by NI 43-101, is David Burga, P. Geo. (Nunavut #2272) from P&E Mining Consultants Inc.”

NI 43-101 Compliantpositive

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

Why it applies: The MRE was prepared 'within the parameters of the NI 43-101 Standards of Disclosure for Mineral Projects'.

Evidence · text

“prepared the updated MRE within the parameters of the NI 43-101 Standards of Disclosure for Mineral Projects.”

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 cut-off grades used: '0.8 g/t Au for the conceptual open pit and 2.0 g/t Au for the conceptual underground extraction scenarios'.

Evidence · text

“The MRE is reported at a cut off of 0.8 g/t Au for the conceptual open pit and 2.0 g/t Au for the conceptual underground extraction scenarios.”

Measured Resourcepositive

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

Why it applies: The resource estimate includes a 'Measured' category, which is the highest confidence category.

Evidence · table

“Measured”

Context: Flood

Indicated Resourcepositive

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

Why it applies: The resource estimate includes an 'Indicated' category, which represents reasonable geological confidence.

Evidence · table

“Indicated”

Context: Flood

Inferred Resourcenegative

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

Why it applies: The resource estimate includes an 'Inferred' category, which is a speculative category with lower confidence.

Evidence · table

“Inferred”

Context: Flood

Extracted facts

Stored fact records: 21. Some facts used in scoring do not have a stored record.

Resource Estimates (21)

measuredUlu Gold Project · goldTonnes: 441000Grade: 8.33Grade Unit: g/tContained Metal: 118Contained Unit: kozView all details
Link to this fact

Identity

Project
Ulu Gold Project
Commodity
gold
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAU

Resource Data

Category
measured
Tonnes
441000
Grade
8.33
Grade Unit
g/t
Contained Metal
118
Contained Unit
koz
Cutoff Grade
0.8

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-21T00:00:00.000Z

Reasoning: High-grade Measured Resource in the Flood Zone, pit-constrained, with a 0.8 g/t Au cut-off, indicating strong confidence and economic potential.

Positive factors

  • High Grade
  • Measured Resource
  • QP/CP Signed
  • NI 43-101 Compliant
  • Cut-off Disclosed

Evidence · table

“8.33”

Context: 441

indicatedUlu Gold Project · goldTonnes: 200000Grade: 6.95Grade Unit: g/tContained Metal: 45Contained Unit: kozView all details
Link to this fact

Identity

Project
Ulu Gold Project
Commodity
gold
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAU

Resource Data

Category
indicated
Tonnes
200000
Grade
6.95
Grade Unit
g/t
Contained Metal
45
Contained Unit
koz
Cutoff Grade
0.8

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-21T00:00:00.000Z

Reasoning: High-grade Indicated Resource in the Flood Zone, pit-constrained, with a 0.8 g/t Au cut-off, indicating good confidence and economic potential.

Positive factors

  • High Grade
  • Indicated Resource
  • QP/CP Signed
  • NI 43-101 Compliant
  • Cut-off Disclosed

Evidence · table

“6.95”

Context: 200

inferredUlu Gold Project · goldTonnes: 142000Grade: 4.32Grade Unit: g/tContained Metal: 20Contained Unit: kozView all details
Link to this fact

Identity

Project
Ulu Gold Project
Commodity
gold
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAU

Resource Data

Category
inferred
Tonnes
142000
Grade
4.32
Grade Unit
g/t
Contained Metal
20
Contained Unit
koz
Cutoff Grade
0.8

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-21T00:00:00.000Z

Reasoning: Strong-grade Inferred Resource in the Flood Zone, pit-constrained, with a 0.8 g/t Au cut-off, indicating future potential but lower confidence.

Positive factors

  • High Grade
  • QP/CP Signed
  • NI 43-101 Compliant
  • Cut-off Disclosed

Negative factors

  • Inferred Resource

Evidence · table

“4.32”

Context: 142

indicatedUlu Gold Project · goldTonnes: 2000Grade: 8.04Grade Unit: g/tContained Metal: 1Contained Unit: kozView all details
Link to this fact

Identity

Project
Ulu Gold Project
Commodity
gold
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAU

Resource Data

Category
indicated
Tonnes
2000
Grade
8.04
Grade Unit
g/t
Contained Metal
1
Contained Unit
koz
Cutoff Grade
0.8

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-21T00:00:00.000Z

Reasoning: High-grade Indicated Resource in the NTK Zone, pit-constrained, with a 0.8 g/t Au cut-off, contributing to the overall resource.

Positive factors

  • High Grade
  • Indicated Resource
  • QP/CP Signed
  • NI 43-101 Compliant
  • Cut-off Disclosed

Evidence · table

“8.04”

Context: 2

inferredUlu Gold Project · goldTonnes: 90000Grade: 4.07Grade Unit: g/tContained Metal: 12Contained Unit: kozView all details
Link to this fact

Identity

Project
Ulu Gold Project
Commodity
gold
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAU

Resource Data

Category
inferred
Tonnes
90000
Grade
4.07
Grade Unit
g/t
Contained Metal
12
Contained Unit
koz
Cutoff Grade
0.8

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-21T00:00:00.000Z

Reasoning: Strong-grade Inferred Resource in the NTK Zone, pit-constrained, with a 0.8 g/t Au cut-off, indicating future potential.

Positive factors

  • High Grade
  • QP/CP Signed
  • NI 43-101 Compliant
  • Cut-off Disclosed

Negative factors

  • Inferred Resource

Evidence · table

“4.07”

Context: 90

indicatedUlu Gold Project · goldTonnes: 25000Grade: 14.54Grade Unit: g/tContained Metal: 12Contained Unit: kozView all details
Link to this fact

Identity

Project
Ulu Gold Project
Commodity
gold
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAU

Resource Data

Category
indicated
Tonnes
25000
Grade
14.54
Grade Unit
g/t
Contained Metal
12
Contained Unit
koz
Cutoff Grade
0.8

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-21T00:00:00.000Z

Reasoning: Exceptional-grade Indicated Resource in the NFN Zone, pit-constrained, with a 0.8 g/t Au cut-off, showing very high economic potential.

Positive factors

  • High Grade
  • Indicated Resource
  • QP/CP Signed
  • NI 43-101 Compliant
  • Cut-off Disclosed

Evidence · table

“14.54”

Context: 25

inferredUlu Gold Project · goldTonnes: 46000Grade: 11.58Grade Unit: g/tContained Metal: 17Contained Unit: kozView all details
Link to this fact

Identity

Project
Ulu Gold Project
Commodity
gold
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAU

Resource Data

Category
inferred
Tonnes
46000
Grade
11.58
Grade Unit
g/t
Contained Metal
17
Contained Unit
koz
Cutoff Grade
0.8

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-21T00:00:00.000Z

Reasoning: Exceptional-grade Inferred Resource in the NFN Zone, pit-constrained, with a 0.8 g/t Au cut-off, indicating strong future potential.

Positive factors

  • High Grade
  • QP/CP Signed
  • NI 43-101 Compliant
  • Cut-off Disclosed

Negative factors

  • Inferred Resource

Evidence · table

“11.58”

Context: 46

measuredUlu Gold Project · goldTonnes: 535000Grade: 9.01Grade Unit: g/tContained Metal: 155Contained Unit: kozView all details
Link to this fact

Identity

Project
Ulu Gold Project
Commodity
gold
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAU

Resource Data

Category
measured
Tonnes
535000
Grade
9.01
Grade Unit
g/t
Contained Metal
155
Contained Unit
koz
Cutoff Grade
2

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-21T00:00:00.000Z

Reasoning: Strong-grade Measured Resource in the Flood Zone, underground scenario, with a 2.0 g/t Au cut-off, indicating high confidence for underground extraction.

Positive factors

  • High Grade
  • Measured Resource
  • QP/CP Signed
  • NI 43-101 Compliant
  • Cut-off Disclosed

Evidence · table

“9.01”

Context: 535

indicatedUlu Gold Project · goldTonnes: 919000Grade: 7.11Grade Unit: g/tContained Metal: 210Contained Unit: kozView all details
Link to this fact

Identity

Project
Ulu Gold Project
Commodity
gold
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAU

Resource Data

Category
indicated
Tonnes
919000
Grade
7.11
Grade Unit
g/t
Contained Metal
210
Contained Unit
koz
Cutoff Grade
2

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-21T00:00:00.000Z

Reasoning: Strong-grade Indicated Resource in the Flood Zone, underground scenario, with a 2.0 g/t Au cut-off, indicating good confidence for underground extraction.

Positive factors

  • High Grade
  • Indicated Resource
  • QP/CP Signed
  • NI 43-101 Compliant
  • Cut-off Disclosed

Evidence · table

“7.11”

Context: 919

inferredUlu Gold Project · goldTonnes: 2430000Grade: 4.41Grade Unit: g/tContained Metal: 345Contained Unit: kozView all details
Link to this fact

Identity

Project
Ulu Gold Project
Commodity
gold
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAU

Resource Data

Category
inferred
Tonnes
2430000
Grade
4.41
Grade Unit
g/t
Contained Metal
345
Contained Unit
koz
Cutoff Grade
2

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-21T00:00:00.000Z

Reasoning: Moderate-grade Inferred Resource in the Flood Zone, underground scenario, with a 2.0 g/t Au cut-off, indicating future potential but lower confidence.

Positive factors

  • High Grade
  • QP/CP Signed
  • NI 43-101 Compliant
  • Cut-off Disclosed

Negative factors

  • Inferred Resource

Evidence · table

“4.41”

Context: 2,430

indicatedUlu Gold Project · goldTonnes: 27000Grade: 5.68Grade Unit: g/tContained Metal: 5Contained Unit: kozView all details
Link to this fact

Identity

Project
Ulu Gold Project
Commodity
gold
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAU

Resource Data

Category
indicated
Tonnes
27000
Grade
5.68
Grade Unit
g/t
Contained Metal
5
Contained Unit
koz
Cutoff Grade
2

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-21T00:00:00.000Z

Reasoning: Weak-grade Indicated Resource in the NTK Zone, underground scenario, with a 2.0 g/t Au cut-off, contributing to the overall resource.

Positive factors

  • High Grade
  • Indicated Resource
  • QP/CP Signed
  • NI 43-101 Compliant
  • Cut-off Disclosed

Evidence · table

“5.68”

Context: 27

inferredUlu Gold Project · goldTonnes: 371000Grade: 4.46Grade Unit: g/tContained Metal: 53Contained Unit: kozView all details
Link to this fact

Identity

Project
Ulu Gold Project
Commodity
gold
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAU

Resource Data

Category
inferred
Tonnes
371000
Grade
4.46
Grade Unit
g/t
Contained Metal
53
Contained Unit
koz
Cutoff Grade
2

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-21T00:00:00.000Z

Reasoning: Moderate-grade Inferred Resource in the NTK Zone, underground scenario, with a 2.0 g/t Au cut-off, indicating future potential.

Positive factors

  • High Grade
  • QP/CP Signed
  • NI 43-101 Compliant
  • Cut-off Disclosed

Negative factors

  • Inferred Resource

Evidence · table

“4.46”

Context: 371

indicatedUlu Gold Project · goldTonnes: 55000Grade: 7.37Grade Unit: g/tContained Metal: 13Contained Unit: kozView all details
Link to this fact

Identity

Project
Ulu Gold Project
Commodity
gold
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAU

Resource Data

Category
indicated
Tonnes
55000
Grade
7.37
Grade Unit
g/t
Contained Metal
13
Contained Unit
koz
Cutoff Grade
2

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-21T00:00:00.000Z

Reasoning: Strong-grade Indicated Resource in the NFN Zone, underground scenario, with a 2.0 g/t Au cut-off, showing good economic potential.

Positive factors

  • High Grade
  • Indicated Resource
  • QP/CP Signed
  • NI 43-101 Compliant
  • Cut-off Disclosed

Evidence · table

“7.37”

Context: 55

inferredUlu Gold Project · goldTonnes: 184000Grade: 4.96Grade Unit: g/tContained Metal: 29Contained Unit: kozView all details
Link to this fact

Identity

Project
Ulu Gold Project
Commodity
gold
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAU

Resource Data

Category
inferred
Tonnes
184000
Grade
4.96
Grade Unit
g/t
Contained Metal
29
Contained Unit
koz
Cutoff Grade
2

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-21T00:00:00.000Z

Reasoning: Moderate-grade Inferred Resource in the NFN Zone, underground scenario, with a 2.0 g/t Au cut-off, indicating future potential.

Positive factors

  • High Grade
  • QP/CP Signed
  • NI 43-101 Compliant
  • Cut-off Disclosed

Negative factors

  • Inferred Resource

Evidence · table

“4.96”

Context: 184

measuredUlu Gold Project · goldTonnes: 976000Grade: 8.7Grade Unit: g/tContained Metal: 273Contained Unit: kozView all details
Link to this fact

Identity

Project
Ulu Gold Project
Commodity
gold
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAU

Resource Data

Category
measured
Tonnes
976000
Grade
8.7
Grade Unit
g/t
Contained Metal
273
Contained Unit
koz

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-21T00:00:00.000Z

Reasoning: Combined Measured Resource for the Flood Zone, showing strong grades and high confidence for both open pit and underground scenarios.

Positive factors

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

Evidence · table

“8.70”

Context: 976

indicatedUlu Gold Project · goldTonnes: 1119000Grade: 7.09Grade Unit: g/tContained Metal: 255Contained Unit: kozView all details
Link to this fact

Identity

Project
Ulu Gold Project
Commodity
gold
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAU

Resource Data

Category
indicated
Tonnes
1119000
Grade
7.09
Grade Unit
g/t
Contained Metal
255
Contained Unit
koz

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-21T00:00:00.000Z

Reasoning: Combined Indicated Resource for the Flood Zone, showing strong grades and good confidence for both open pit and underground scenarios.

Positive factors

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

Evidence · table

“7.09”

Context: 1,119

inferredUlu Gold Project · goldTonnes: 2572000Grade: 4.41Grade Unit: g/tContained Metal: 365Contained Unit: kozView all details
Link to this fact

Identity

Project
Ulu Gold Project
Commodity
gold
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAU

Resource Data

Category
inferred
Tonnes
2572000
Grade
4.41
Grade Unit
g/t
Contained Metal
365
Contained Unit
koz

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-21T00:00:00.000Z

Reasoning: Combined Inferred Resource for the Flood Zone, showing moderate grades and future potential for both open pit and underground scenarios.

Positive factors

  • High Grade
  • QP/CP Signed
  • NI 43-101 Compliant

Negative factors

  • Inferred Resource

Evidence · table

“4.41”

Context: 2,572

indicatedUlu Gold Project · goldTonnes: 29000Grade: 6.44Grade Unit: g/tContained Metal: 6Contained Unit: kozView all details
Link to this fact

Identity

Project
Ulu Gold Project
Commodity
gold
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAU

Resource Data

Category
indicated
Tonnes
29000
Grade
6.44
Grade Unit
g/t
Contained Metal
6
Contained Unit
koz

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-21T00:00:00.000Z

Reasoning: Combined Indicated Resource for the NTK Zone, showing weak grades and good confidence for both open pit and underground scenarios.

Positive factors

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

Evidence · table

“6.44”

Context: 29

inferredUlu Gold Project · goldTonnes: 461000Grade: 4.39Grade Unit: g/tContained Metal: 65Contained Unit: kozView all details
Link to this fact

Identity

Project
Ulu Gold Project
Commodity
gold
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAU

Resource Data

Category
inferred
Tonnes
461000
Grade
4.39
Grade Unit
g/t
Contained Metal
65
Contained Unit
koz

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-21T00:00:00.000Z

Reasoning: Combined Inferred Resource for the NTK Zone, showing moderate grades and future potential for both open pit and underground scenarios.

Positive factors

  • High Grade
  • QP/CP Signed
  • NI 43-101 Compliant

Negative factors

  • Inferred Resource

Evidence · table

“4.39”

Context: 461

indicatedUlu Gold Project · goldTonnes: 80000Grade: 9.72Grade Unit: g/tContained Metal: 25Contained Unit: kozView all details
Link to this fact

Identity

Project
Ulu Gold Project
Commodity
gold
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAU

Resource Data

Category
indicated
Tonnes
80000
Grade
9.72
Grade Unit
g/t
Contained Metal
25
Contained Unit
koz

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-21T00:00:00.000Z

Reasoning: Combined Indicated Resource for the NFN Zone, showing strong grades and good confidence for both open pit and underground scenarios.

Positive factors

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

Evidence · table

“9.72”

Context: 80

inferredUlu Gold Project · goldTonnes: 230000Grade: 6.22Grade Unit: g/tContained Metal: 46Contained Unit: kozView all details
Link to this fact

Identity

Project
Ulu Gold Project
Commodity
gold
Region
canada_nu
Reported Region
Nunavut, Canada
Ticker
BAU

Resource Data

Category
inferred
Tonnes
230000
Grade
6.22
Grade Unit
g/t
Contained Metal
46
Contained Unit
koz

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-21T00:00:00.000Z

Reasoning: Combined Inferred Resource for the NFN Zone, showing weak grades and future potential for both open pit and underground scenarios.

Positive factors

  • High Grade
  • QP/CP Signed
  • NI 43-101 Compliant

Negative factors

  • Inferred Resource

Evidence · table

“6.22”

Context: 230

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.