Borealis Files NI 43-101 Technical Report for the Sandman Gold Project
Original announcement by tmx on
- Company
- Borealis Mining Company Limited
- Ticker
- BOGO
- Exchange
- TSX
- Region
- Nevada, USA
- Primary commodity
- Gold
- Secondary commodities
- None reported
- Document categories
- Resource update, Other
- Extracted
- 2026-09-15 15:00:57 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Borealis Mining Company Limited has filed a NI 43-101 Technical Report supporting a Preliminary Economic Assessment (PEA) for the Sandman Gold Project in Nevada. The PEA indicates a post-tax NPV of approximately US$203 million and an IRR of 105% based on a US$2,600/oz gold price, utilizing a conventional open-pit heap-leach operation.
Reasoning: The filing of the NI 43-101 Technical Report formalizes the Sandman Gold Project PEA, confirming strong economic indicators (NPV US$203M) and a clear processing pathway via existing infrastructure, though it relies on older resource data.
Positive factors
- Strong PEA economics with US$203M NPV and 105% IRR
- Low strip ratio of 2.2:1
- Strategic advantage of using existing ADR facility
- High sensitivity to gold price leverage
Negative factors
- PEA is preliminary and includes speculative inferred resources
- Economic analysis based on 2021 Mineral Resource Estimate
Facts used in scoring: 1
Classification and evidence
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: The technical report supports a Preliminary Economic Assessment (PEA) for the Sandman Gold Project.
Evidence · text
“supporting the previously announced Preliminary Economic Assessment (" PEA ")”
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: The PEA includes inferred mineral resources that are considered too speculative for reserves.
Evidence · text
“includes inferred mineral resources that are considered too speculative geologically”
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: The company filed a NI 43-101 technical report.
Evidence · text
“announces that it has filed on SEDAR+ the National Instrument 43-101 (" NI 43-101 ") technical report”
Extracted facts
Stored fact records: 1. Some facts used in scoring do not have a stored record.
Resource Estimates (1)
inferredSandman Gold Project · goldContained Metal: 340000Contained Unit: ozView all detailsHide details
Identity
- Project
- Sandman Gold Project
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada, USA
- Ticker
- BOGO
Resource scope
- Estimate type
- resource
- Effective date
- 2026-01-05T00:00:00.000Z
- Reporting standards
- ni_43_101
- QP Signed
- Yes
- Qualified person names
- Jerod Eastman
- Resource group id
- resource:fff2cc6418219a97d211
- Deposit or zone
- Sandman Gold Project
- Mining method
- open_pit
Resource Data
- Category
- inferred
- Contained Metal
- 340000
- Contained Unit
- oz
Prior Estimate
- Resource Date
- 2026-01-05
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-04-02T00:00:00.000Z
Reasoning: The PEA highlights 340,000 oz of gold production, but notes these are based on inferred resources which carry higher geological risk.
Positive factors
- Life-of-mine production of 340,000 ounces
Negative factors
- Inferred resources are considered too speculative to be categorized as reserves
Evidence · text
“Life-of-mine gold production: approximately 340,000 ounces over ~9 years”
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
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
PFS-Supportingneutral
Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.
Why it applies: the release names the study this estimate supports
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
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.