# Stellar Resources Delivers 64% Increase in Severn Tin Resource, Cementing Heemskirk as Australia's Highest-Grade Undeveloped Tin Project Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/stellar-resources-delivers-64-increase-in-severn-tin-resource-cementing-heemskir--35aacdf4-ba2b-4b94-b69f-be85e9376982 Original source: https://finance.yahoo.com/markets/commodities/articles/stellar-resources-delivers-64-increase-085300525.html Publisher: yahoo\_press Original announcement: 2026-07-02T08:53:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Stellar Resources Limited - Ticker: SRZ - Exchange: ASX - Region: Western Tasmania - Primary commodity: Tin - Secondary commodities: None reported - Document categories: Resource update - Extracted: 2026-09-12 03:16:15 UTC Narrative sentiment: 1.00 · Bullish ## Minestarters Atlas summary Stellar Resources has announced a significant update to the Mineral Resource Estimate at the Heemskirk Tin Project. The Severn deposit resource has increased by 64% to 8.54Mt at 0.82% Sn, bringing the total project resource to 13.36Mt at 0.86% Sn. Reasoning: The update reports a substantial 64% increase in the Severn deposit resource, significantly expanding the project's scale and contained metal. - Positive factor: Significant tonnage growth \(64%\) - Positive factor: High-grade tin resource - Positive factor: Tier-1 jurisdiction Facts used in scoring: 2 ## Classification and evidence **Tonnage Growth** Polarity: positive Definition: Tonnage increase reaching the strong tier vs prior estimate, with grade maintained or improved. Why it applies: The Severn deposit resource increased by 64% compared to the previous estimate. Evidence · text > 64% increase in the Total Mineral Resource at the Severn deposit **Maiden Resource** Polarity: neutral Definition: First formal MRE for the project — establishes baseline but typically exploration-stage with high Inferred component. No prior estimate exists, so every change band is not applicable. Why it applies: The document describes a significant update to an existing MRE rather than a maiden resource. Evidence · text > significant update to the Mineral Resource Estimate \(MRE\) ## Extracted facts Stored fact records: 2. Some facts used in scoring do not have a stored record. ## Resource Estimates (2) ### Severn [Link to this fact](https://atlas-extractions.minestarters.com/news/stellar-resources-delivers-64-increase-in-severn-tin-resource-cementing-heemskir--35aacdf4-ba2b-4b94-b69f-be85e9376982#fact-resource-facts-0) Heemskirk Tin Project · tin #### Identity - Project: Heemskirk Tin Project - Commodity: tin - Region: australia\_tas - Reported Region: Western Tasmania - Ticker: SRZ #### Resource scope - Estimate type: resource - Resource group id: resource:cffebcae91ac666564be - Deposit or zone: Severn #### Resource Data - Tonnes: 8540000 - Grade: 0.82 - Grade Unit: % - Contained Metal: 70002 - Contained Unit: t #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-02T00:00:00.000Z Reasoning: Significant tonnage and contained metal increase at the Severn deposit. - Positive factor: 64% increase in resource Evidence · text > reaching 8.54Mt at 0.82% Sn for 70,002 tonnes of contained tin #### Tags used in scoring **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 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: no Qualified or Competent Person is named anywhere in the release ### Heemskirk Tin Project [Link to this fact](https://atlas-extractions.minestarters.com/news/stellar-resources-delivers-64-increase-in-severn-tin-resource-cementing-heemskir--35aacdf4-ba2b-4b94-b69f-be85e9376982#fact-resource-facts-1) Heemskirk Tin Project · tin #### Identity - Project: Heemskirk Tin Project - Commodity: tin - Region: australia\_tas - Reported Region: Western Tasmania - Ticker: SRZ #### Resource scope - Estimate type: resource - Resource group id: resource:b429f9b2a2ae3eed964f - Deposit or zone: Heemskirk Tin Project #### Resource Data - Tonnes: 13360000 - Grade: 0.86 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-02T00:00:00.000Z Reasoning: The total project resource has been upgraded to 13.36Mt. - Positive factor: Increased total project resource Evidence · text > brings the total Heemskirk Tin Project Resource to 13.36Mt at 0.86% #### Tags used in scoring **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 **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: no Qualified or Competent Person is named anywhere in the release ## 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.