EX-99.1
Original announcement by research on
- Company
- NexGen Energy Ltd.
- Ticker
- NGEX
- Exchange
- TSX
- Region
- Saskatchewan, Canada
- Primary commodity
- Uranium
- Secondary commodities
- None reported
- Document categories
- Other, Resource update, Production, Metallurgy
- Extracted
- 2026-10-19 17:35:27 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
This annual information form for NexGen Energy focuses on the Rook I uranium project, including feasibility-study economics, resource and reserve estimates, permitting progress, and recent exploration activity. It also discusses the company’s financing actions, corporate updates, and 2025 development work. The document is primarily a broad corporate and project disclosure rather than a single technical event.
Reasoning: This is a broad annual information form whose substantive current event is disclosure of project economics, resource/reserve status, and permitting progress for the Rook I uranium project.
Positive factors
- NI 43-101-qualified technical disclosure
- positive economics and feasibility study metrics disclosed
- resource and reserve estimates are fully tabulated
- permitting milestone progress disclosed
Negative factors
- annual information form bundles extensive historical information and boilerplate
- some economic figures are an interim trend update rather than a new study
- no new assays or drill intercepts are the core current event
Low confidence — this extraction should be reviewed alongside the original source.
Rubric flags
- economic_study classification ambiguity — The document is an annual information form with feasibility-study content; if the pipeline prefers single-event documents, consider categorizing the release as other rather than economic_study.
Facts used in scoring: 11
Classification and evidence
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: Scientific and technical information was reviewed and approved by Mr. Simon Allard, P.Eng. and Mr. Jason Craven, P.Geo., each stated to be a qualified person.
Evidence · text
“reviewed and approved by Mr. Simon Allard, P.Eng., Vice President, Commercial, and Mr. Jason Craven, P.Geo.”
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: The document states the technical information was prepared for the Rook I FS Technical Report under NI 43-101.
Evidence · text
“qualified person for the purposes of National Instrument 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 resource and reserve tables explicitly state cut-off grades of 0.25% U3O8 and 0.30% U3O8.
Evidence · text
“reported at a cut-off grade of 0.25% U 3 O 8”
Free Millingpositive · Story-specific tag
Simple, clean ore amenable to standard processing without oxidation.
Why it applies: Metallurgical testwork and process design describe a conventional uranium process flow with ore sorting, grinding, leaching, SX and precipitation, not refractory treatment.
Evidence · text
“The process plant design for the Rook I Project is based on the metallurgical testing and on the latest unit processes successfully used in uranium process plants across the world”
Pilot Scale Completepositive · Story-specific tag
Pilot or demonstration plant testing completed under continuous operation.
Why it applies: The release states that a pilot plant was completed and used to support the feasibility study recovery assumption.
Evidence · text
“included a bench test program, a pilot plant, and paste backfill testing”
QA/QC Disclosedpositive · Story-specific tag
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: The document discloses blanks, field duplicates and SRMs with insertion frequencies and acceptance criteria.
Evidence · text
“Standard reference materials (SRM)”
Apparent Width Onlynegative · Story-specific tag
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Why it applies: The release says core interval measurements and true thicknesses are not determined until assay results are received.
Evidence · text
“Core interval measurements and true thicknesses are not determined until assay results are received.”
Nearology Playneutral · Story-specific tag
Value premise rests on proximity to a known deposit rather than own results.
Why it applies: The 2025 program is described as testing extents of mineralization identified in early 2024 at the PCE discovery, 3.5 km east of Arrow.
Evidence · text
“3.5 kilometers (“km”) east of the Arrow Deposit”
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: the document describes a flotation route ("flotation")
Gravity Routeneutral
Gravity separation forms a material part of the flowsheet.
Why it applies: the document describes a gravity route ("gravity")
Multi-Domain Testedpositive
Variability across ore domains (oxide, transition, fresh) has been addressed.
Why it applies: 2 distinct composites were tested
Extracted facts
Stored fact records: 11. Some facts used in scoring do not have a stored record.
Resource Estimates (9)
measuredRook I Project · uraniumTonnes: 2183000Grade: 4.35Grade Unit: % U 3 O 8Contained Metal: 209600000Contained Unit: lb u 3 o 8Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Rook I Project
- Commodity
- uranium
- Region
- canada_sk
- Reported Region
- Saskatchewan, Canada
- Ticker
- NGEX
Resource scope
- Estimate type
- resource
- Reporting standards
- ni_43_101
- QP Signed
- Yes
- Qualified person names
- Mr. Simon Allard, Mr. Jason Craven
- Resource group id
- resource:2a077fae94841bbe501b
- Deposit or zone
- Arrow Deposit
Resource Data
- Category
- measured
- Tonnes
- 2183000
- Grade
- 4.35
- Grade Unit
- % U 3 O 8
- Contained Metal
- 209600000
- Contained Unit
- lb u 3 o 8
- Cutoff Grade
- 0.25
- Cutoff Unit
- % U 3 O 8
Prior Estimate
- Resource Date
- 2019-07-19
Lab
- Laboratory
- Saskatchewan Research Council Geoanalytical Laboratories
Location
- Loc. Confidence
- high
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2021-03-10T00:00:00.000Z
Reasoning: Measured resource row for the Arrow Deposit is explicitly stated in the feasibility-study resource table.
Positive factors
- Measured category disclosed
- contained metal disclosed
- NI 43-101 technical report referenced
Negative factors
- historical resource estimate dated 2019-07-19
- cut-off grade is historical rather than current announcement data
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
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 7.3 years before this release
indicatedRook I Project · uraniumTonnes: 1572000Grade: 1.36Grade Unit: % U 3 O 8Contained Metal: 47100000Contained Unit: lb u 3 o 8Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Rook I Project
- Commodity
- uranium
- Region
- canada_sk
- Reported Region
- Saskatchewan, Canada
- Ticker
- NGEX
Resource scope
- Estimate type
- resource
- Reporting standards
- ni_43_101
- QP Signed
- Yes
- Qualified person names
- Mr. Simon Allard, Mr. Jason Craven
- Resource group id
- resource:96e2dd2ac90d8f6d2bca
- Deposit or zone
- Arrow Deposit
Resource Data
- Category
- indicated
- Tonnes
- 1572000
- Grade
- 1.36
- Grade Unit
- % U 3 O 8
- Contained Metal
- 47100000
- Contained Unit
- lb u 3 o 8
- Cutoff Grade
- 0.25
- Cutoff Unit
- % U 3 O 8
Prior Estimate
- Resource Date
- 2019-07-19
Lab
- Laboratory
- Saskatchewan Research Council Geoanalytical Laboratories
Location
- Loc. Confidence
- high
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2021-03-10T00:00:00.000Z
Reasoning: Indicated resource row for the Arrow Deposit is explicitly stated in the feasibility-study resource table.
Positive factors
- Indicated category disclosed
- contained metal disclosed
- NI 43-101 technical report referenced
Negative factors
- historical resource estimate dated 2019-07-19
- cut-off grade is historical rather than current announcement data
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 7.3 years before this release
inferredRook I Project · uraniumTonnes: 4399000Grade: 0.83Grade Unit: % U 3 O 8Contained Metal: 80700000Contained Unit: lb u 3 o 8Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Rook I Project
- Commodity
- uranium
- Region
- canada_sk
- Reported Region
- Saskatchewan, Canada
- Ticker
- NGEX
Resource scope
- Estimate type
- resource
- Reporting standards
- ni_43_101
- QP Signed
- Yes
- Qualified person names
- Mr. Simon Allard, Mr. Jason Craven
- Resource group id
- resource:45d49c51f33a277e2bd4
- Deposit or zone
- Arrow Deposit
Resource Data
- Category
- inferred
- Tonnes
- 4399000
- Grade
- 0.83
- Grade Unit
- % U 3 O 8
- Contained Metal
- 80700000
- Contained Unit
- lb u 3 o 8
- Cutoff Grade
- 0.25
- Cutoff Unit
- % U 3 O 8
Prior Estimate
- Resource Date
- 2019-07-19
Lab
- Laboratory
- Saskatchewan Research Council Geoanalytical Laboratories
Location
- Loc. Confidence
- high
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2021-03-10T00:00:00.000Z
Reasoning: Inferred resource row for the Arrow Deposit is explicitly stated in the feasibility-study resource table.
Positive factors
- Inferred resource disclosed with contained metal
- NI 43-101 technical report referenced
Negative factors
- high Inferred proportion limits confidence
- historical resource estimate dated 2019-07-19
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 7.3 years before this release
probableRook I Project · uraniumTonnes: 4575000Grade: 2.37Grade Unit: % U 3 O 8Contained Metal: 239600000Contained Unit: lb u 3 o 8Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Rook I Project
- Commodity
- uranium
- Region
- canada_sk
- Reported Region
- Saskatchewan, Canada
- Ticker
- NGEX
Resource scope
- Estimate type
- reserve
- Reporting standards
- ni_43_101
- QP Signed
- Yes
- Qualified person names
- Mr. Simon Allard, Mr. Jason Craven
- Resource group id
- resource:531b267723151a396e33
- Deposit or zone
- Arrow Deposit
Resource Data
- Category
- probable
- Tonnes
- 4575000
- Grade
- 2.37
- Grade Unit
- % U 3 O 8
- Contained Metal
- 239600000
- Contained Unit
- lb u 3 o 8
- Cutoff Grade
- 0.3
- Cutoff Unit
- % U 3 O 8
Prior Estimate
- Resource Date
- 2021-01-21
Lab
- Laboratory
- Saskatchewan Research Council Geoanalytical Laboratories
Location
- Loc. Confidence
- high
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2021-03-10T00:00:00.000Z
Reasoning: Probable reserve row for the Arrow Deposit is explicitly stated in the reserve table.
Positive factors
- Probable reserve disclosed
- contained metal disclosed
- mineable reserve category supports project economics
Negative factors
- historical reserve estimate dated 2021-01-21
Tags used in scoring
Probable Reservepositive
Indicated Resource with demonstrated economic viability after applying modifying factors.
Why it applies: category is "probable"
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 5.7 years before this release
provenRook I Project · uraniumTonnes: 0Grade: 0Grade Unit: % U 3 O 8Contained Metal: 0Contained Unit: lb u 3 o 8Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Rook I Project
- Commodity
- uranium
- Region
- canada_sk
- Reported Region
- Saskatchewan, Canada
- Ticker
- NGEX
Resource scope
- Estimate type
- reserve
- Reporting standards
- ni_43_101
- QP Signed
- Yes
- Qualified person names
- Mr. Simon Allard, Mr. Jason Craven
- Resource group id
- resource:72bcfa3b228ac505db5e
- Deposit or zone
- Arrow Deposit
Resource Data
- Category
- proven
- Tonnes
- 0
- Grade
- 0
- Grade Unit
- % U 3 O 8
- Contained Metal
- 0
- Contained Unit
- lb u 3 o 8
- Cutoff Grade
- 0.3
- Cutoff Unit
- % U 3 O 8
Prior Estimate
- Resource Date
- 2021-01-21
Lab
- Laboratory
- Saskatchewan Research Council Geoanalytical Laboratories
Location
- Loc. Confidence
- high
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2021-03-10T00:00:00.000Z
Reasoning: Proven reserve is explicitly reported as zero in the reserve table.
Positive factors
- Proven category is explicitly reported in the reserve table
Negative factors
- zero tonnes and contained metal
Tags used in scoring
Proven Reservepositive
Measured Resource with demonstrated economic viability after applying modifying factors.
Why it applies: category is "proven"
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 5.7 years before this release
measuredRook I Project · uraniumTonnes: 2183000Grade: 4.35Grade Unit: % U 3 O 8Contained Metal: 209600000Contained Unit: lb u 3 o 8Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Rook I Project
- Commodity
- uranium
- Region
- canada_sk
- Reported Region
- Saskatchewan, Canada
- Ticker
- NGEX
Resource scope
- Estimate type
- resource
- Effective date
- 2019-07-19T00:00:00.000Z
- Reporting standards
- ni_43_101
- QP Signed
- Yes
- Qualified person names
- Mr. Simon Allard, Mr. Jason Craven
- Resource group id
- resource:9bd969280e40378374c6
- Deposit or zone
- Arrow Deposit
Resource Data
- Category
- measured
- Tonnes
- 2183000
- Grade
- 4.35
- Grade Unit
- % U 3 O 8
- Contained Metal
- 209600000
- Contained Unit
- lb u 3 o 8
- Cutoff Grade
- 0.25
- Cutoff Unit
- % U 3 O 8
Prior Estimate
- Resource Date
- 2019-07-19
Lab
- Laboratory
- Saskatchewan Research Council Geoanalytical Laboratories
Location
- Loc. Confidence
- high
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2021-03-10T00:00:00.000Z
Reasoning: The same measured resource is restated in the detailed resource table.
Positive factors
- Measured resource disclosed in the table
- contained metal stated
Negative factors
- duplicate historical resource disclosure
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
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 7.3 years before this release
indicatedRook I Project · uraniumTonnes: 1572000Grade: 1.36Grade Unit: % U 3 O 8Contained Metal: 47100000Contained Unit: lb u 3 o 8Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Rook I Project
- Commodity
- uranium
- Region
- canada_sk
- Reported Region
- Saskatchewan, Canada
- Ticker
- NGEX
Resource scope
- Estimate type
- resource
- Effective date
- 2019-07-19T00:00:00.000Z
- Reporting standards
- ni_43_101
- QP Signed
- Yes
- Qualified person names
- Mr. Simon Allard, Mr. Jason Craven
- Resource group id
- resource:56d1f1b4d8a2f21245f2
- Deposit or zone
- Arrow Deposit
Resource Data
- Category
- indicated
- Tonnes
- 1572000
- Grade
- 1.36
- Grade Unit
- % U 3 O 8
- Contained Metal
- 47100000
- Contained Unit
- lb u 3 o 8
- Cutoff Grade
- 0.25
- Cutoff Unit
- % U 3 O 8
Prior Estimate
- Resource Date
- 2019-07-19
Lab
- Laboratory
- Saskatchewan Research Council Geoanalytical Laboratories
Location
- Loc. Confidence
- high
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2021-03-10T00:00:00.000Z
Reasoning: The same indicated resource is restated in the detailed resource table.
Positive factors
- Indicated resource disclosed in the table
- contained metal stated
Negative factors
- duplicate historical resource disclosure
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 7.3 years before this release
inferredRook I Project · uraniumTonnes: 4399000Grade: 0.83Grade Unit: % U 3 O 8Contained Metal: 80700000Contained Unit: lb u 3 o 8Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Rook I Project
- Commodity
- uranium
- Region
- canada_sk
- Reported Region
- Saskatchewan, Canada
- Ticker
- NGEX
Resource scope
- Estimate type
- resource
- Effective date
- 2019-07-19T00:00:00.000Z
- Reporting standards
- ni_43_101
- QP Signed
- Yes
- Qualified person names
- Mr. Simon Allard, Mr. Jason Craven
- Resource group id
- resource:4ad24acc7fc4439ae55b
- Deposit or zone
- Arrow Deposit
Resource Data
- Category
- inferred
- Tonnes
- 4399000
- Grade
- 0.83
- Grade Unit
- % U 3 O 8
- Contained Metal
- 80700000
- Contained Unit
- lb u 3 o 8
- Cutoff Grade
- 0.25
- Cutoff Unit
- % U 3 O 8
Prior Estimate
- Resource Date
- 2019-07-19
Lab
- Laboratory
- Saskatchewan Research Council Geoanalytical Laboratories
Location
- Loc. Confidence
- high
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2021-03-10T00:00:00.000Z
Reasoning: The same inferred resource is restated in the detailed resource table.
Positive factors
- Inferred resource disclosed in the table
- contained metal stated
Negative factors
- duplicate historical resource disclosure
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 7.3 years before this release
probableRook I Project · uraniumTonnes: 4575000Grade: 2.37Grade Unit: % U 3 O 8Contained Metal: 239600000Contained Unit: lb u 3 o 8Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Rook I Project
- Commodity
- uranium
- Region
- canada_sk
- Reported Region
- Saskatchewan, Canada
- Ticker
- NGEX
Resource scope
- Estimate type
- reserve
- Effective date
- 2021-01-21T00:00:00.000Z
- Reporting standards
- ni_43_101
- QP Signed
- Yes
- Qualified person names
- Mr. Simon Allard, Mr. Jason Craven
- Resource group id
- resource:cf1b2bc1a6e6b3f95502
- Deposit or zone
- Arrow Deposit
Resource Data
- Category
- probable
- Tonnes
- 4575000
- Grade
- 2.37
- Grade Unit
- % U 3 O 8
- Contained Metal
- 239600000
- Contained Unit
- lb u 3 o 8
- Cutoff Grade
- 0.3
- Cutoff Unit
- % U 3 O 8
Prior Estimate
- Resource Date
- 2021-01-21
Lab
- Laboratory
- Saskatchewan Research Council Geoanalytical Laboratories
Location
- Loc. Confidence
- high
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2021-03-10T00:00:00.000Z
Reasoning: The same probable reserve is restated in the detailed reserve table.
Positive factors
- Probable reserve disclosed in the table
- contained metal stated
Negative factors
- duplicate historical reserve disclosure
Tags used in scoring
Probable Reservepositive
Indicated Resource with demonstrated economic viability after applying modifying factors.
Why it applies: category is "probable"
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 5.7 years before this release
Metallurgical Results (2)
pilot plantRook I Project · uraniumRecovery: 97.6 %Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Rook I Project
- Commodity
- uranium
- Region
- canada_sk
- Reported Region
- Saskatchewan, Canada
- Ticker
- NGEX
Test Work
- Program Status
- detailed
- Test Type
- pilot plant
- Processing Route
- ore sorting, grinding, leaching, counter current decantation and clarification, SX, gypsum precipitation and washing, YC precipitation and washing, YC drying, calcining and packaging
- Sample
- 2018 metallurgical test program
Recovery
- Recovery
- 97.6 %
- Recovery Basis
- actual_test
Lab
- Laboratory
- Saskatchewan Research Council Geoanalytical Laboratories
- Consultant
- Wood
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2021-03-10T00:00:00.000Z
Reasoning: The feasibility study states a metallurgical steady state uranium recovery of 97.6% based on pilot plant test work.
Positive factors
- pilot plant results underpin the feasibility study
- very high uranium recovery disclosed
- conventional processing route described
Negative factors
- historical test work rather than new program
Tags used in scoring
Pilot Scale Completepositive
Pilot or demonstration plant testing completed under continuous operation.
Why it applies: test_type names pilot-scale work
pilot leachRook I Project · uraniumRecovery: 99.3 %Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Rook I Project
- Commodity
- uranium
- Region
- canada_sk
- Reported Region
- Saskatchewan, Canada
- Ticker
- NGEX
Test Work
- Program Status
- detailed
- Test Type
- pilot leach
- Processing Route
- leaching
- Sample
- pilot leach testing
Recovery
- Recovery
- 99.3 %
- Recovery Basis
- actual_test
Lab
- Laboratory
- Saskatchewan Research Council Geoanalytical Laboratories
- Consultant
- Wood
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2021-03-10T00:00:00.000Z
Reasoning: Pilot leach testing results indicated uranium extractions of 99.3%.
Positive factors
- pilot leach testing result disclosed
- excellent extraction figure
Negative factors
- route is not fully quantified in the text beyond pilot leach
Tags used in scoring
Pilot Scale Completepositive
Pilot or demonstration plant testing completed under continuous operation.
Why it applies: test_type names pilot-scale work
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.