# Vault Announces Acquisition Of U.S. Historical Mirage-Mariposa Tungsten Mine Within The Gray Eagle Project Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/vault-announces-acquisition-of-u-s-historical-mirage-mariposa-tungsten-mine-with--47666ca5-f350-4da4-ab49-de2c8d7e3a52 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: Resource update, Agreement transaction - Extracted: 2026-09-16 06:46:09 UTC Narrative sentiment: 0.60 · 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 a total of 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 at a low cost, providing a foundation for exploration, though the existing resource data is old and non-compliant. - Positive factor: Acquisition of a historical past-producing mine - Positive factor: Combination of tungsten and precious metals in a skarn environment - Positive factor: Low acquisition cost \(US$380,000 total\) - Positive factor: Potential for modern exploration to expand known system - Negative factor: Historical resource data is non-NI 43-101 compliant - Negative factor: No modern drilling has been performed to confirm historical grades - Negative factor: Resource is largely subeconomic or inferred Facts used in scoring: 2 ## Classification and evidence **Stale Data Re-release** Polarity: negative Story-specific tag Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: The resource figures are historical USGS records that have not been updated with modern drilling. Evidence · text > historical information and any historical resource estimates should not be relied upon as current mineral resources or reserves **No QP/CP Disclosure** Polarity: negative Definition: No Qualified Person or Competent Person named — lower credibility for the estimate. A QP/CP should be a member of a recognized professional association with relevant experience. Why it applies: The historical resource estimate provided by the USGS does not include a modern NI 43-101 or JORC compliant QP sign-off. Evidence · text > historical information referenced in this release... do not comply with current NI 43-101 requirements ## Extracted facts Stored fact records: 2. Some facts used in scoring do not have a stored record. ## Resource Estimates (2) ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/vault-announces-acquisition-of-u-s-historical-mirage-mariposa-tungsten-mine-with--47666ca5-f350-4da4-ab49-de2c8d7e3a52#fact-resource-facts-0) Gray Eagle Project · tungsten Historical result Needs review: historical\_restatement #### Identity - Project: Gray Eagle Project - Commodity: tungsten - Region: california - Reported Region: California - Ticker: KNOX #### Resource scope - Estimate type: resource - Reporting standards: other - QP Signed: No - Resource group id: resource:a685743b16ad8b6e96c9 - Deposit or zone: Mirage-Mariposa #### Resource Data - Category: indicated - Tonnes: 21000 - Grade: 0.15 - Grade Unit: % #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes #### Dates - Event date: 2026-05-08T00:00:00.000Z Reasoning: The resource is based on historical USGS records and is not verified by modern standards. - Negative factor: Historical data is non-compliant with NI 43-101 Evidence · text > approximately 21,000 indicated tons and 34,400 inferred tons, with an average grade of 0.15% tungsten trioxide #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/vault-announces-acquisition-of-u-s-historical-mirage-mariposa-tungsten-mine-with--47666ca5-f350-4da4-ab49-de2c8d7e3a52#fact-resource-facts-1) Gray Eagle Project · tungsten Historical result Needs review: historical\_restatement #### Identity - Project: Gray Eagle Project - Commodity: tungsten - Region: california - Reported Region: California - Ticker: KNOX #### Resource scope - Estimate type: resource - Reporting standards: other - QP Signed: No - Resource group id: resource:944d32cff26bb5e94382 - Deposit or zone: Mirage-Mariposa #### Resource Data - Category: inferred - Tonnes: 34400 - Grade: 0.15 - Grade Unit: % #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes #### Dates - Event date: 2026-05-08T00:00:00.000Z Reasoning: Inferred resources are speculative and require further drilling to confirm continuity. - Negative factor: Inferred category implies low geological confidence Evidence · text > approximately 21,000 indicated tons and 34,400 inferred tons, with an average grade of 0.15% tungsten trioxide #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported ## 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.