# VUL: Well test de-risks and strengthens Lionheart FDP confidence

Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/vul-well-test-de-risks-and-strengthens-lionheart-fdp-confidence--7b343173-8583-4451-a8b9-fafaf6d1f5a4

Original source: https://www.asx.com.au/asx/v2/statistics/displayAnnouncement.do?display=pdf&idsId=03152580

Publisher: asx

Original announcement: 2026-10-14T21:14:00.000Z

Analysis by Minestarters Atlas

Atlas analysis published: 2026-10-14T22:28:40.373Z

Atlas analysis updated: 2026-10-14T22:28:40.373Z

- Company: Vulcan Energy

- Ticker: VUL

- Exchange: ASX

- Region: Upper Rhine Valley

- Primary commodity: Lithium

- Secondary commodities: Renewable power, Heat

- Document categories: Other, Drill results

- Extracted: 2026-10-14 22:28:41 UTC

Narrative sentiment: 0.80 · Bullish

## Minestarters Atlas summary

Vulcan Energy has successfully completed a well test \(LSC-3a\) at Project Lionheart, validating the ability to reinject lithium-depleted brine into the sandstone reservoir matrix. The test demonstrated an injection capacity of 64 standard litres per second, which exceeds the 40 L/s assumed in the current Field Development Plan.

Reasoning: The well test successfully validated a key subsurface assumption \(matrix reinjection\) and exceeded expected injection capacity, significantly de-risking the project's development plan.

- Positive factor: Successful reinjection into reservoir matrix validates base case production scenario

- Positive factor: Demonstrated injection capacity \(64 L/s\) exceeds FDP assumptions \(40 L/s\)

- Positive factor: De-risks Field Development Plan \(FDP\) execution

Facts used in scoring: 1

## Classification and evidence

**QA/QC Disclosed**

Polarity: positive

Story-specific tag

Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\).

Why it applies: The release mentions integrated analysis of drilling, core and logging data and successful completion of testing in accordance with an approved program.

Evidence · text

> Injection testing was subsequently completed in accordance with Vulcan’s approved test program.

## Extracted facts

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

## Drill Results (1)

### LSC-3a

[Link to this fact](https://atlas-staging.minestarters.com/news/vul-well-test-de-risks-and-strengthens-lionheart-fdp-confidence--7b343173-8583-4451-a8b9-fafaf6d1f5a4#fact-drill-facts-0)

Lionheart

#### Identity

- Hole ID: LSC-3a
- Project: Lionheart
- Region: upper rhine valley
- Reported Region: upper rhine valley
- Ticker: VUL

#### Geometry

- Hole Depth: 3743 m

#### Classification

- Program: resource
- Sample Type: drill

#### QA/QC

- QA/QC Methods: standards

#### Review

- Needs Review: No
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-10-14T00:00:00.000Z

Reasoning: Well test results for LSC-3a exceeded the technical assumptions of the Field Development Plan.

- Positive factor: Exceeds assumed injection capacity of 40 L/s

- Positive factor: Validates matrix reinjection assumption

Evidence · text

> LSC-3a, was drilled to a total measured depth of 3,743m

#### Tags used in scoring

**No QA/QC Disclosure**

Polarity: negative

Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.

Why it applies: qaqc\_disclosed is not true

**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

**Infill Drilling**

Polarity: neutral

Definition: Confirmatory drilling to raise resource confidence, not new discovery.

Why it applies: drill\_program\_type is "resource"

## 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.