C-Suite At The Open: David J. Copeland, President & CEO and Andrew Ing, CFO from Rathdowney Resources Ltd. tell their Company story. Filmed on May 14, 2020

Original announcement by tmx on

Company
Rathdowney Resources Ltd.
Ticker
RTH
Exchange
TSX
Region
southwestern Poland
Primary commodity
Zinc
Secondary commodities
Lead
Document categories
Resource update, Other
Extracted
2026-09-12 23:36:39 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Rathdowney Resources highlights the economic potential of Project Olza in Poland, noting an inferred resource of 24.4 million tonnes at 7.02% combined zinc and lead. The company references a 2015 PEA indicating strong NPV and cash flow potential for an underground operation.

Reasoning: The document restates a 24.4 Mt inferred resource with a higher combined grade (7.02% Zn+Pb) than the 2019 RAG data (6.15% Zn+Pb), though it is a re-release of a 2015 PEA basis.

Positive factors

  • Grade improvement in combined Zn+Pb vs prior inferred estimates
  • Strong NPV and cash flow projections from PEA
  • Proximity to existing smelter and infrastructure

Negative factors

  • Resource is entirely Inferred
  • Historical estimates are non-compliant with NI 43-101

Facts used in scoring: 3

Classification and evidence

Inferred Resourcenegative

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

Why it applies: The 24.4 Mt resource is explicitly stated as inferred.

Evidence · text

“24.4 million tonnes of inferred mineral resources”

Historical Estimate Onlynegative

Estimate pre-dates or does not comply with current JORC/NI 43-101 standards — requires verification drilling.

Why it applies: The 77 Mt resource is identified as a historical estimate from a 1992 report.

Evidence · text

“Polish Geological Survey drilling delineated a historical resource of 77 million tonnes”

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: David J. Copeland, P.Eng., a qualified person, has reviewed the technical information.

Evidence · text

“David J. Copeland, P.Eng., ... a qualified person ... has reviewed the technical information”

Extracted facts

Stored fact records: 3. Some facts used in scoring do not have a stored record.

Resource Estimates (3)

inferredProject Olza · zincTonnes: 24400000Grade: 5.53Grade Unit: %Historical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Project
Project Olza
Commodity
zinc
Region
southwestern poland
Reported Region
southwestern Poland
Ticker
RTH

Resource scope

Estimate type
resource
QP Signed
Yes
Qualified person names
David J. Copeland
Resource group id
resource:98751fca9e6505f1267f

Resource Data

Category
inferred
Tonnes
24400000
Grade
5.53
Grade Unit
%
Cutoff Grade
2
Cutoff Unit
% zinc

Review

Needs Review
Yes
Review Reason
historical_restatement
Historical
Yes
Historical Source Date
2015-04-20T00:00:00.000Z

Dates

Event date
2020-06-02T00:00:00.000Z

Reasoning: Restatement of resource used for 2015 PEA.

Positive factors

  • Grade is higher than prior 2019 inferred estimates

Negative factors

  • Entirely inferred category

Evidence · text

“24.4 million tonnes of inferred mineral resources grading 7.02% combined zinc and lead”

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

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

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

Why it applies: the release names the study this estimate supports

Stale Estimatenegative

Effective date is >2 years old — data currency concern, may not reflect current geological understanding.

Why it applies: effective date is 5.1 years before this release

inferredProject Olza · leadTonnes: 24400000Grade: 1.49Grade Unit: %Historical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Project
Project Olza
Commodity
lead
Region
southwestern poland
Reported Region
southwestern Poland
Ticker
RTH

Resource scope

Estimate type
resource
QP Signed
Yes
Qualified person names
David J. Copeland
Resource group id
resource:98751fca9e6505f1267f

Resource Data

Category
inferred
Tonnes
24400000
Grade
1.49
Grade Unit
%
Cutoff Grade
2
Cutoff Unit
% zinc

Review

Needs Review
Yes
Review Reason
historical_restatement
Historical
Yes
Historical Source Date
2015-04-20T00:00:00.000Z

Dates

Event date
2020-06-02T00:00:00.000Z

Reasoning: Restatement of resource used for 2015 PEA.

Negative factors

  • Entirely inferred category

Evidence · text

“24.4 million tonnes of inferred mineral resources grading 7.02% combined zinc and lead”

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

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

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

Why it applies: the release names the study this estimate supports

Stale Estimatenegative

Effective date is >2 years old — data currency concern, may not reflect current geological understanding.

Why it applies: effective date is 5.1 years before this release

inferredProject Olza · zincTonnes: 77000000Grade: 6.15Grade Unit: % Zn+PbHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Project
Project Olza
Commodity
zinc
Region
southwestern poland
Reported Region
southwestern Poland
Ticker
RTH

Resource scope

Estimate type
resource
Resource group id
resource:6ed2d4ab0d6bf5bdd1dd

Resource Data

Category
inferred
Tonnes
77000000
Grade
6.15
Grade Unit
% Zn+Pb

Review

Needs Review
Yes
Review Reason
historical_restatement
Historical
Yes
Historical Source Date
1992-01-01T00:00:00.000Z

Dates

Event date
2020-06-02T00:00:00.000Z

Reasoning: Historical estimate from 1992 Polish Geological Survey.

Negative factors

  • Non-compliant with NI 43-101
  • Historical estimate

Evidence · text

“77 million tonnes grading 6.15% Zn+Pb in C1/C2 categories”

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 Undisclosednegative

High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff_grade was stated

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

PEA-Supportingneutral

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

Why it applies: the release names the study this estimate supports

Stale Estimatenegative

Effective date is >2 years old — data currency concern, may not reflect current geological understanding.

Why it applies: effective date is 28.4 years before this 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.