McEwen Files NI 43-101 Technical Report for the Tartan Mine Project in Manitoba
Original announcement by tmx on
- Company
- McEwen Inc.
- Ticker
- MUX
- Exchange
- TSX
- Region
- Manitoba
- Primary commodity
- Gold
- Secondary commodities
- Silver
- Document categories
- Resource update, Other
- Extracted
- 2026-09-12 14:58:58 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
McEwen Inc. has filed an NI 43-101 Technical Report for the Tartan Mine Project in Manitoba. The report supports the mineral resource estimate previously announced on March 23, 2026.
Reasoning: The document is a filing of a technical report supporting a previously announced resource estimate; it contains no new assay or tonnage data.
Positive factors
- NI 43-101 compliant technical report filed
- QA/QC protocols verified by independent review
Facts used in scoring: 2
Classification and evidence
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: The technical report was prepared in accordance with NI 43-101 standards.
Evidence · text
“prepared in accordance with National Instrument 43-101”
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 report includes verification of QA/QC protocols, including blanks and certified reference materials.
Evidence · text
“examining QA/QC protocols and results from the submission of blank and certified reference materials”
Stale Data Re-releasenegative · Story-specific tag
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Why it applies: The resource figures are a restatement of those previously announced on March 23, 2026.
Evidence · text
“previously announced on March 23, 2026”
Extracted facts
Stored fact records: 2. Some facts used in scoring do not have a stored record.
Resource Estimates (2)
indicatedTartan Mine Project · goldTonnes: 2619000Grade: 3.67Grade Unit: g/tContained Metal: 308900Contained Unit: ozHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Tartan Mine Project
- Commodity
- gold
- Region
- canada_mb
- Reported Region
- Manitoba
- Ticker
- MUX
Resource scope
- Estimate type
- resource
- Reporting standards
- ni_43_101
- QP Signed
- Yes
- Qualified person names
- Terre Lane, Hamid Samari, Dr. Todd Harvey, Larry Breckenridge
- Resource group id
- resource:81139202d207d37a1f2c
Resource Data
- Category
- indicated
- Tonnes
- 2619000
- Grade
- 3.67
- Grade Unit
- g/t
- Contained Metal
- 308900
- Contained Unit
- oz
Prior Estimate
- Resource Date
- 2025-12-31
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2026-03-23T00:00:00.000Z
Dates
- Event date
- 2026-05-04T00:00:00.000Z
Reasoning: Indicated resource restatement of previously announced data.
Evidence · text
“Indicated Resources of 2,619,000 tonnes at 3.67 g/t Au for 308,900 ounces of gold”
Tags used in scoring
Indicated Resourcepositive
Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.
Why it applies: category is "indicated"
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
QP/CP Signedpositive
Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.
Why it applies: qp_signed is true
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: reporting_standards includes ni_43_101
inferredTartan Mine Project · goldTonnes: 2832900Grade: 3.32Grade Unit: g/tContained Metal: 302700Contained Unit: ozHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Tartan Mine Project
- Commodity
- gold
- Region
- canada_mb
- Reported Region
- Manitoba
- Ticker
- MUX
Resource scope
- Estimate type
- resource
- Reporting standards
- ni_43_101
- QP Signed
- Yes
- Qualified person names
- Terre Lane, Hamid Samari, Dr. Todd Harvey, Larry Breckenridge
- Resource group id
- resource:ef01c4afecdeb933a8b4
Resource Data
- Category
- inferred
- Tonnes
- 2832900
- Grade
- 3.32
- Grade Unit
- g/t
- Contained Metal
- 302700
- Contained Unit
- oz
Prior Estimate
- Resource Date
- 2025-12-31
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2026-03-23T00:00:00.000Z
Dates
- Event date
- 2026-05-04T00:00:00.000Z
Reasoning: Inferred resource restatement of previously announced data.
Evidence · text
“Inferred Resources of 2,832,900 tonnes at 3.32 g/t Au for 302,700 ounces of gold”
Tags used in scoring
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: category is "inferred"
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
QP/CP Signedpositive
Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.
Why it applies: qp_signed is true
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: reporting_standards includes ni_43_101
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.