# Vault Announces Acquisition Of U.S. Historical Mirage-Mariposa Tungsten Mine Within The Gray Eagle Project

Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/vault-announces-acquisition-of-u-s-historical-mirage-mariposa-tungsten-mine-with--e274fd72-ff9b-495a-bacc-0aa8d5f8d9f8

Original source: https://money.tmx.com/en/quote/KNOX/news/5894005970679025/vault-announces-acquisition-of-u-s-historical-mirage-mariposa-tungsten-mine-with

Publisher: tmx

Original announcement: 2026-05-08T23:15:00.000Z

Analysis by Minestarters Atlas

Atlas analysis published: Unknown date

Atlas analysis updated: Unknown date

- Company: Vault Strategic Mining Corp.

- Ticker: KNOX

- Exchange: TSX

- Region: California

- Primary commodity: Tungsten

- Secondary commodities: Silver

- Document categories: Agreement transaction, Resource update

- Extracted: 2026-08-23 18:42:07 UTC

Narrative sentiment: 0.40 · Bullish

## Minestarters Atlas summary

Vault Strategic Mining Corp. has entered into a definitive agreement to acquire 100% of the historical Mirage-Mariposa Tungsten Mine in California for US$380,000 and a 2.0% NSR royalty. The project contains historical tungsten and silver resources in a skarn environment, which the company intends to re-evaluate using modern exploration techniques.

Reasoning: The company is acquiring a historical tungsten-silver project with existing \(though non-compliant\) resource estimates, providing a foundation for modern exploration.

- Positive factor: Acquisition of a historical past-producing mine

- Positive factor: Combination of tungsten and precious metals

- Positive factor: Skarn environment potential

- Negative factor: Historical resource is non-NI 43-101 compliant

- Negative factor: No modern drilling available

- Negative factor: Resource is described as subeconomic

Facts used in scoring: 6

## Classification and evidence

**Inferred Resource**

Polarity: negative

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

Why it applies: The USGS MRDS record includes 34,400 tons of inferred resources.

Evidence · text

> 34,400 inferred tons

**Historical Estimate Only**

Polarity: negative

Definition: Estimate pre-dates or does not comply with current JORC/NI 43-101 standards — requires verification drilling.

Why it applies: The resource estimates are based on historical USGS MRDS data and are non-NI 43-101 compliant.

Evidence · text

> such historical information and any historical resource estimates should not be relied upon as current mineral resources or reserves

## Extracted facts

Stored fact records: 0. Some facts used in scoring do not have a stored record.

No stored fact records are available for this extraction.

## 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.