CPN: 45% Increase to MRE at Kelpie Tin Deposit

Original announcement by asx on

Company
Caspin Resources Limited
Ticker
CPN
Exchange
ASX
Region
New South Wales
Primary commodity
Tin
Secondary commodities
None reported
Document categories
Resource update
Extracted
2026-10-11 22:16:34 UTC

Analysis by Minestarters Atlas

Atlas analysis published:

Minestarters Atlas analysis

Summary

Caspin Resources Limited announced a 45% increase in the Mineral Resource Estimate for its Kelpie Tin Deposit, now totaling 6.5 Mt at 0.43% Sn for 28 kt of contained tin. This update includes a maiden Indicated Resource, representing 25% of the total, and is entirely constrained within an open pit shell, significantly enhancing the project's economic viability. The company sees excellent potential for further resource growth, particularly in undrilled areas and down-plunge extensions.

Reasoning: The updated MRE shows a substantial 45% increase in contained tin, including a maiden Indicated resource, which significantly de-risks the project and supports its open-pit development potential. The estimate is JORC compliant and pit-constrained, indicating strong economic prospects.

Positive factors

  • Significant increase in contained tin (45%)
  • Maiden Indicated Resource established, improving confidence
  • Resource is entirely constrained within an open pit shell, enhancing economic viability
  • JORC 2012 compliant and signed off by Competent Person
  • Excellent potential for further resource growth identified

Low confidence — this extraction should be reviewed alongside the original source.

Facts used in scoring: 2

Classification and evidence

Tonnage Growthpositive

Significant tonnage increase (≥15%) vs prior estimate with grade maintained or improved.

Why it applies: The updated MRE shows a 45% increase in contained tin since the September 2025 maiden MRE, indicating significant tonnage growth.

Evidence · text

“45% increase in contained tin since September 2025 maiden MRE”

Contained Metal Growthpositive

True scale improvement — contained metal ounces/tonnes increased vs prior, accounting for both tonnage and grade changes.

Why it applies: The contained tin increased by 45% from the previous estimate, from approximately 19.31 kt to 28 kt.

Evidence · text

“45% increase in contained tin since September 2025 maiden MRE”

Category Upgradepositive

Resource confidence improved — Inferred upgraded to Indicated, or Indicated to Measured. De-risking signal.

Why it applies: The MRE includes a maiden Indicated resource, representing 25% of the total, which is an upgrade in resource confidence.

Evidence · text

“Maiden Indicated MRE representing 25% of the total MRE, driven by an enhanced geological model and increased drill density”

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: The report states that Mr Michael Job, a Fellow of the Australasian Institute of Mining and Metallurgy, is the Competent Person for the Mineral Resources.

Evidence · text

“The information in this report that relates to Estimation and Reporting of Mineral Resources is based on information compiled or reviewed by Mr Michael Job, who is a Fellow of the Australasian Institute of Mining and Metallurgy.”

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: The MRE is reported in accordance with the JORC Code (2012).

Evidence · text

“The MRE is reported in accordance with the JORC Code (2012).”

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: The cut-off grade of 0.15% Sn used for the resource estimate is clearly stated.

Evidence · text

“The resource is reported above a cut-off grade of 0.15% Sn.”

Maiden Resourceneutral

First formal MRE for the project — establishes baseline but typically exploration-stage with high Inferred component.

Why it applies: The document highlights the establishment of a maiden Indicated MRE.

Evidence · text

“Maiden Indicated MRE representing 25% of the total MRE”

Resource Updateneutral

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

Why it applies: The document announces an updated Mineral Resource Estimate for the Kelpie Tin Deposit.

Evidence · text

“Updated Mineral Resource Estimate (MRE)of 6.5Mt @ 0.43% Sn for 28kt of contained tin”

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: The MRE is being used to assess development economics and support a stand-alone open pit tin development.

Evidence · text

“As we begin to assess the development economics of the project.”

Extracted facts

Stored fact records: 2. Some facts used in scoring do not have a stored record.

Resource Estimates (2)

indicatedKelpie Deposit · tinTonnes: 1400000Grade: 0.47Grade Unit: %Contained Metal: 7Contained Unit: ktView all details
Link to this fact

Identity

Project
Kelpie Deposit
Commodity
tin
Region
australia_nsw
Reported Region
New South Wales
Ticker
CPN

Resource scope

Estimate type
resource
Reporting standards
jorc
QP Signed
Yes
Qualified person names
Mr Michael Job
Resource group id
resource:a518d2fc083035531239
Deposit or zone
Kelpie Deposit
Mining method
open_pit
Material type
fresh
Ownership percent
100 %
Resource basis
gross

Resource Data

Category
indicated
Tonnes
1400000
Grade
0.47
Grade Unit
%
Contained Metal
7
Contained Unit
kt
Cutoff Grade
0.15
Cutoff Unit
% Sn

Prior Estimate

Resource Date
2026-10-12
Prior Contained Metal
19.31

Lab

Laboratory
ALS Laboratories

Location

Loc. Confidence
medium

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-11T00:00:00.000Z

Reasoning: The establishment of a maiden Indicated resource for tin, constrained within an open pit, significantly improves the confidence and economic viability of the project.

Positive factors

  • Maiden Indicated Resource established
  • Pit-constrained, enhancing economic viability
  • JORC 2012 compliant and QP signed

Evidence · table

“0.47”

Context: 1.4

Tags used in scoring

Indicated Resourcepositive

Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.

Why it applies: category is "indicated"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Contained Metal Declinenegative

Contained metal decreased vs prior despite tonnage growth — grade dilution exceeds volume gain.

Why it applies: 7 against 19.31 previously

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

inferredKelpie Deposit · tinTonnes: 5100000Grade: 0.41Grade Unit: %Contained Metal: 21Contained Unit: ktView all details
Link to this fact

Identity

Project
Kelpie Deposit
Commodity
tin
Region
australia_nsw
Reported Region
New South Wales
Ticker
CPN

Resource scope

Estimate type
resource
Reporting standards
jorc
QP Signed
Yes
Qualified person names
Mr Michael Job
Resource group id
resource:2a0bd7e5de7aa2652e52
Deposit or zone
Kelpie Deposit
Mining method
open_pit
Material type
fresh
Ownership percent
100 %
Resource basis
gross

Resource Data

Category
inferred
Tonnes
5100000
Grade
0.41
Grade Unit
%
Contained Metal
21
Contained Unit
kt
Cutoff Grade
0.15
Cutoff Unit
% Sn

Prior Estimate

Resource Date
2026-10-12
Prior Contained Metal
19.31

Lab

Laboratory
ALS Laboratories

Location

Loc. Confidence
medium

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-11T00:00:00.000Z

Reasoning: The Inferred resource contributes significantly to the overall contained tin, is pit-constrained, and is JORC compliant, indicating strong potential for future conversion and economic extraction.

Positive factors

  • Significant contained metal contribution
  • Pit-constrained, enhancing economic viability
  • JORC 2012 compliant and QP signed

Evidence · table

“0.41”

Context: 5.1

Tags used in scoring

Inferred Resourcenegative

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

Why it applies: category is "inferred"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Contained Metal Growthpositive

True scale improvement — contained metal ounces/tonnes increased vs prior, accounting for both tonnage and grade changes.

Why it applies: 21 against 19.31 previously

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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.