# Stellar Resources Delivers 64% Increase in Severn Tin Resource, Cementing Heemskirk as Australia's Highest-Grade Undeveloped Tin Project

Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/stellar-resources-delivers-64-increase-in-severn-tin-resource-cementing-heemskir--47367b79-8c2e-474a-8e75-4936a1f62c45

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: 2026-08-20 22:03:29 UTC

Narrative sentiment: 0.90 · Bullish

## Minestarters Atlas summary

Stellar Resources has announced a significant update to the Heemskirk Tin Project Mineral Resource Estimate. 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 announcement reports a massive 64% increase in the Severn deposit resource, significantly expanding the project scale.

- 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: Significant tonnage increase \(≥15%\) 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

**Resource Update**

Polarity: neutral

Definition: Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: The document is a formal update to the Mineral Resource Estimate \(MRE\).

Evidence · text

> announce a 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)

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/stellar-resources-delivers-64-increase-in-severn-tin-resource-cementing-heemskir--47367b79-8c2e-474a-8e75-4936a1f62c45#fact-resource-facts-0)

tin

#### Identity

- Commodity: tin
- Ticker: SRZ

#### Resource Data

- Category: inferred
- 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 growth 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

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/stellar-resources-delivers-64-increase-in-severn-tin-resource-cementing-heemskir--47367b79-8c2e-474a-8e75-4936a1f62c45#fact-resource-facts-1)

tin

#### Identity

- Commodity: tin
- Ticker: SRZ

#### Resource Data

- Category: inferred
- Tonnes: 13360000
- Grade: 0.86
- Grade Unit: %

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-07-02T00:00:00.000Z

Reasoning: Total project resource update showing high-grade tin profile.

- Positive factor: High grade for tin

Evidence · text

> brings the total Heemskirk Tin Project Resource to 13.36Mt at 0.86%

## 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.