# Borealis Mining Announces Updated NI 43-101 Preliminary Economic Assessment for the Sandman Gold Project Highlighting Strong Stand-Alone Economics, ADR-Enabled Capital Efficiency and Substantial Leverage to Gold Prices

Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/borealis-mining-announces-updated-ni-43-101-preliminary-economic-assessment-for--5d31a4cd-5ab0-41fd-9d39-d7d0fa9927b1

Original source: https://money.tmx.com/en/quote/BOGO/news/6294230747193740/borealis-mining-announces-updated-ni-43-101-preliminary-economic-assessment-for-

Publisher: tmx

Original announcement: 2026-02-19T12:00:00.000Z

Analysis by Minestarters Atlas

Atlas analysis published: Unknown date

Atlas analysis updated: Unknown date

- Company: Borealis Mining Company Limited

- Ticker: BOGO

- Exchange: TSX

- Region: Nevada

- Primary commodity: Gold

- Secondary commodities: None reported

- Document categories: Resource update, Other

- Extracted: 2026-08-23 02:45:22 UTC

Narrative sentiment: 0.80 · Bullish

## Minestarters Atlas summary

Borealis Mining has released an updated PEA for the Sandman Gold Project in Nevada, reporting a base-case NPV\(6%\) of US$203 million and an IRR of 105% at US$2,600/oz gold. The improvement is driven by updated economic inputs and gold price assumptions rather than changes to the mineral resource or mine plan.

Reasoning: The updated PEA shows significant economic uplift \(NPV +$82M\) due to higher gold price assumptions, though the underlying resource remains in the Inferred category.

- Positive factor: Strong NPV and IRR at US$2,600 gold

- Positive factor: Rapid payback period of 1.1 years

- Positive factor: Leverage to higher gold prices demonstrated

- Positive factor: Utilization of existing ADR infrastructure for capital efficiency

- Negative factor: Resource is entirely Inferred \(speculative\)

- Negative factor: Economic assumptions driven by gold price increase rather than geological improvement

Facts used in scoring: 1

## Classification and evidence

**PEA-Supporting**

Polarity: neutral

Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: The announcement is for an updated Preliminary Economic Assessment \(PEA\).

Evidence · text

> updated NI 43-101 Preliminary Economic Assessment

**All Inferred**

Polarity: negative

Definition: 100% of resource is Inferred category — very early stage, no engineering confidence.

Why it applies: The PEA includes inferred mineral resources that are considered too speculative to be categorized as reserves.

Evidence · text

> The PEA includes inferred mineral resources that are considered too speculative geologically to have economic considerations applied to them

**QP/CP Signed**

Polarity: positive

Definition: 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: Jerod Eastman of DJ 6E Consulting LLC is named as the independent Qualified Person.

Evidence · text

> information prepared by Jerod Eastman, President of DJ 6E Consulting LLC, an independent Qualified Person

## Extracted facts

Stored fact records: 1. Some facts used in scoring do not have a stored record.

## Resource Estimates (1)

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/borealis-mining-announces-updated-ni-43-101-preliminary-economic-assessment-for--5d31a4cd-5ab0-41fd-9d39-d7d0fa9927b1#fact-resource-facts-0)

gold

#### Identity

- Commodity: gold
- Ticker: BOGO

#### Resource Data

- Category: inferred
- Contained Metal: 340000
- Contained Unit: ounces

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-02-19T00:00:00.000Z

Reasoning: The resource forms the basis of the PEA but is categorized as Inferred.

- Positive factor: Total life-of-mine production of 340,000 ounces

- Negative factor: Resource is Inferred and considered too speculative for reserves

Evidence · text

> total life-of-mine production of approximately 340,000 ounces of gold

## 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.