Meridian Announces FTSE Index Inclusion and Moves from SETSqx to SETS

Original announcement by tmx on

Company
Meridian Mining plc
Ticker
MNO
Exchange
TSX
Region
Brazil
Primary commodity
Gold
Secondary commodities
Copper, Silver, Zinc, Lead
Document categories
Resource update, Other
Extracted
2026-09-16 10:38:04 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Meridian Mining plc is transitioning its share trading from SETSqx to SETS on the London Stock Exchange following its inclusion in the FTSE Index series. The company also highlighted the advanced stage of its Cabaçal gold-copper project, which recently completed a Pre-feasibility Study.

Reasoning: The announcement of FTSE index inclusion and trading platform upgrade is a positive corporate milestone for liquidity and institutional visibility.

Positive factors

  • FTSE Index inclusion
  • Transition to SETS for improved liquidity
  • Advanced stage Cabaçal project with positive PFS economics

Facts used in scoring: 3

Classification and evidence

Resource Updateneutral · Story-specific tag

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

Why it applies: The document restates reserve figures from a March 2025 PFS report.

Evidence · text

“The Pre-feasibility Study technical report... dated March 31, 2025... outlines... Cabaçal Mineral Reserve estimate consists of Proven and Probable reserves of 41.7 million tonnes”

Extracted facts

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

Resource Estimates (3)

probablegoldTonnes: 41700000Grade: 0.63Grade Unit: g/tHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Commodity
gold
Region
brazil
Reported Region
Brazil
Ticker
MNO

Resource scope

Estimate type
reserve
Resource group id
resource:a610ba54e2bd1a361f73
Deposit or zone
Cabaçal
Resource basis
gross

Resource Data

Category
probable
Tonnes
41700000
Grade
0.63
Grade Unit
g/t

Review

Needs Review
Yes
Review Reason
historical_restatement
Historical
Yes
Historical Source Date
2025-03-31T00:00:00.000Z

Dates

Event date
2026-06-04T00:00:00.000Z

Reasoning: Restatement of existing reserve data from the PFS Technical Report.

Positive factors

  • Significant reserve tonnage

Evidence · text

“Cabaçal Mineral Reserve estimate consists of Proven and Probable reserves of 41.7 million tonnes at 0.63g/t gold, 0.44% copper and 1.64g/t silver”

Tags used in scoring

Probable Reservepositive

Indicated Resource with demonstrated economic viability after applying modifying factors.

Why it applies: category is "probable"

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

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

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

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

probablecopperTonnes: 41700000Grade: 0.44Grade Unit: %Historical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Commodity
copper
Region
brazil
Reported Region
Brazil
Ticker
MNO

Resource scope

Estimate type
reserve
Resource group id
resource:a610ba54e2bd1a361f73
Deposit or zone
Cabaçal
Resource basis
gross

Resource Data

Category
probable
Tonnes
41700000
Grade
0.44
Grade Unit
%

Review

Needs Review
Yes
Review Reason
historical_restatement
Historical
Yes
Historical Source Date
2025-03-31T00:00:00.000Z

Dates

Event date
2026-06-04T00:00:00.000Z

Reasoning: Restatement of existing reserve data from the PFS Technical Report.

Positive factors

  • Significant reserve tonnage

Evidence · text

“Cabaçal Mineral Reserve estimate consists of Proven and Probable reserves of 41.7 million tonnes at 0.63g/t gold, 0.44% copper and 1.64g/t silver”

Tags used in scoring

Probable Reservepositive

Indicated Resource with demonstrated economic viability after applying modifying factors.

Why it applies: category is "probable"

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

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

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

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

probablesilverTonnes: 41700000Grade: 1.64Grade Unit: g/tHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Commodity
silver
Region
brazil
Reported Region
Brazil
Ticker
MNO

Resource scope

Estimate type
reserve
Resource group id
resource:a610ba54e2bd1a361f73
Deposit or zone
Cabaçal
Resource basis
gross

Resource Data

Category
probable
Tonnes
41700000
Grade
1.64
Grade Unit
g/t

Review

Needs Review
Yes
Review Reason
historical_restatement
Historical
Yes
Historical Source Date
2025-03-31T00:00:00.000Z

Dates

Event date
2026-06-04T00:00:00.000Z

Reasoning: Restatement of existing reserve data from the PFS Technical Report.

Positive factors

  • Significant reserve tonnage

Evidence · text

“Cabaçal Mineral Reserve estimate consists of Proven and Probable reserves of 41.7 million tonnes at 0.63g/t gold, 0.44% copper and 1.64g/t silver”

Tags used in scoring

Probable Reservepositive

Indicated Resource with demonstrated economic viability after applying modifying factors.

Why it applies: category is "probable"

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

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

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

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

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.