Mineros Delivers Record Q1 2026: Revenue of $291.8 Million and Adjusted EBITDA of $154.1 Million on Higher Production and Gold Prices

Original announcement by tmx on

Company
Mineros S.A.
Ticker
MSA
Exchange
TSX
Region
Colombia, Nicaragua, Chile
Primary commodity
Gold
Secondary commodities
Silver, Zinc, Copper
Document categories
Resource update, Production, Economic study, Drill results
Extracted
2026-09-18 10:55:03 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Mineros S.A. reported record Q1 2026 financial results, with revenue of $291.8 million and Adjusted EBITDA of $154.1 million, driven by higher gold production and realized gold prices. The company's Cash Cost and AISC per ounce of gold sold were below its 2026 guidance ranges. Strategic highlights include compelling economics from an updated Pre-Feasibility Study for the Porvenir Project, significant updates to Mineral Reserves and Resources across multiple deposits in Nicaragua, and ongoing exploration and resource expansion drilling programs in both Nicaragua and Colombia.

Reasoning: Mineros reported record Q1 2026 financial results, driven by strong production growth and higher gold prices, with costs tracking below guidance. The updated Porvenir PFS shows compelling economics, and the company announced significant Mineral Reserve and Resource updates for several deposits, alongside active drilling programs. Negative free cash flow is noted but attributed to strategic gold position and tax payments.

Positive factors

  • Record Q1 financial results driven by higher production and gold prices
  • Strong gold and silver production growth
  • Cash Cost and AISC tracking below guidance
  • Compelling economics from Porvenir PFS
  • Significant Mineral Reserve and Resource updates for multiple deposits
  • Active exploration and resource expansion drilling programs

Negative factors

  • Net free cash flow was negative, reflecting working capital movements for strategic gold position and higher tax payments
  • Tonnage decrease in Porvenir Probable Reserves compared to prior estimate (though prior was AuEq)
  • Increase in LTIFR at Nechí Property

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

Facts used in scoring: 63

Classification and evidence

Resource Updateneutral

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

Why it applies: The source explicitly discloses a revised resource estimate

Evidence · text

“updated Mineral Resource estimate”

Extracted facts

Stored fact records: 36. Some facts used in scoring do not have a stored record.

Drill Results (1)

Fact 1Experiencia target (Apoyo)Needs review: drill_no_hole_idView all details
Link to this fact

Identity

Project
Experiencia target (Apoyo)
Region
nicaragua
Reported Region
nicaragua
Ticker
MSA

Classification

Program
exploration
Sample Type
drill

QA/QC

QP Signed
Yes

Review

Needs Review
Yes
Review Reason
drill_no_hole_id
Interp. Status
scored
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Greenfield exploration activities commenced at the Experiencia target, indicating early-stage exploration for new discoveries.

Positive factors

  • Initiation of regional greenfield exploration

Negative factors

  • Delays in starting drilling contracts

Evidence · text

“During the first quarter, the Company completed 947 metres of diamond drilling across four holes, ... Drilling activities were initiated at the Experiencia target, recently renamed Apoyo, which is located within the Bonanza district.”

Tags used in scoring

No QA/QC Disclosurenegative

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 Undisclosednegative

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

Why it applies: no cutoff_grade was stated

Resource Estimates (35)

indicatedTolima · goldContained Metal: 23.35Contained Unit: mozHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Project
Tolima
Commodity
gold
Region
colombia
Reported Region
Colombia
Ticker
MSA

Resource scope

Estimate type
resource
Effective date
2024-12-01T00:00:00.000Z
Resource group id
resource:97d384b231628215685a

Resource Data

Category
indicated
Contained Metal
23.35
Contained Unit
moz

Prior Estimate

Resource Date
2024-12-01

Review

Needs Review
Yes
Review Reason
historical_restatement
Historical
Yes

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: The company acquired a project with a significant historical indicated gold resource, providing future exploration potential.

Positive factors

  • Large historical resource estimate

Negative factors

  • Historical estimate, not current
  • Acquisition of project, not new discovery

Evidence · text

“hosts a historical mineral resource estimate of 23.35 million ounces of gold in the Indicated Mineral Resources category”

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 Undisclosednegative

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

Why it applies: no cutoff_grade was stated

inferredTolima · goldContained Metal: 4.98Contained Unit: mozHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Project
Tolima
Commodity
gold
Region
colombia
Reported Region
Colombia
Ticker
MSA

Resource scope

Estimate type
resource
Effective date
2024-12-01T00:00:00.000Z
Resource group id
resource:7d600cf7281906433478

Resource Data

Category
inferred
Contained Metal
4.98
Contained Unit
moz

Prior Estimate

Resource Date
2024-12-01

Review

Needs Review
Yes
Review Reason
historical_restatement
Historical
Yes

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: The acquired project also includes a substantial historical inferred gold resource, adding to its exploration upside.

Positive factors

  • Significant historical resource estimate

Negative factors

  • Historical estimate, not current
  • Inferred category has lower confidence

Evidence · text

“4.98 million ounces of gold in the Inferred Mineral Resources category”

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

provenPorvenir Project · goldTonnes: 650000Grade: 3.5Grade Unit: g/tContained Metal: 73000Contained Unit: kozView all details
Link to this fact

Identity

Project
Porvenir Project
Commodity
gold
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
reserve
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:8b4e34449332aaba2756

Resource Data

Category
proven
Tonnes
650000
Grade
3.5
Grade Unit
g/t
Contained Metal
73000
Contained Unit
koz

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Proven Mineral Reserves for the Porvenir Project include a high-grade gold component, contributing to the project's economic viability.

Positive factors

  • New Proven Mineral Reserves reported
  • High-grade gold component

Negative factors

  • Effective date is older than RAG data, suggesting this is a prior estimate

Evidence · text

“Proven Mineral Reserves: 650 kt averaging 3.50 g/t Au, ... containing 73 koz Au”

Tags used in scoring

Proven Reservepositive

Measured Resource with demonstrated economic viability after applying modifying factors.

Why it applies: category is "proven"

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

provenPorvenir Project · silverTonnes: 650000Grade: 14.07Grade Unit: g/tContained Metal: 294000Contained Unit: kozView all details
Link to this fact

Identity

Project
Porvenir Project
Commodity
silver
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
reserve
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:8b4e34449332aaba2756

Resource Data

Category
proven
Tonnes
650000
Grade
14.07
Grade Unit
g/t
Contained Metal
294000
Contained Unit
koz

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Proven Mineral Reserves for the Porvenir Project include a significant silver component.

Positive factors

  • New Proven Mineral Reserves reported
  • Significant silver component

Negative factors

  • Effective date is older than RAG data, suggesting this is a prior estimate

Evidence · text

“Proven Mineral Reserves: 650 kt averaging ... 14.07 g/t Ag, ... containing ... 294 koz Ag”

Tags used in scoring

Proven Reservepositive

Measured Resource with demonstrated economic viability after applying modifying factors.

Why it applies: category is "proven"

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

provenPorvenir Project · zincTonnes: 650000Grade: 2.54Grade Unit: %Contained Metal: 36000000Contained Unit: lbView all details
Link to this fact

Identity

Project
Porvenir Project
Commodity
zinc
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
reserve
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:8b4e34449332aaba2756

Resource Data

Category
proven
Tonnes
650000
Grade
2.54
Grade Unit
%
Contained Metal
36000000
Contained Unit
lb

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Proven Mineral Reserves for the Porvenir Project include a significant zinc component.

Positive factors

  • New Proven Mineral Reserves reported
  • Significant zinc component

Negative factors

  • Effective date is older than RAG data, suggesting this is a prior estimate

Evidence · text

“Proven Mineral Reserves: 650 kt averaging ... 2.54% Zn and ... containing ... 36 Mlb Zn”

Tags used in scoring

Proven Reservepositive

Measured Resource with demonstrated economic viability after applying modifying factors.

Why it applies: category is "proven"

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

provenPorvenir Project · copperTonnes: 650000Grade: 0.5Grade Unit: %Contained Metal: 7000000Contained Unit: lbView all details
Link to this fact

Identity

Project
Porvenir Project
Commodity
copper
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
reserve
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:8b4e34449332aaba2756

Resource Data

Category
proven
Tonnes
650000
Grade
0.5
Grade Unit
%
Contained Metal
7000000
Contained Unit
lb

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Proven Mineral Reserves for the Porvenir Project include a significant copper component.

Positive factors

  • New Proven Mineral Reserves reported
  • Significant copper component

Negative factors

  • Effective date is older than RAG data, suggesting this is a prior estimate

Evidence · text

“Proven Mineral Reserves: 650 kt averaging ... 0.50% Cu, containing ... 7 Mlb Cu.”

Tags used in scoring

Proven Reservepositive

Measured Resource with demonstrated economic viability after applying modifying factors.

Why it applies: category is "proven"

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

probablePorvenir Project · goldTonnes: 5827000Grade: 2.79Grade Unit: g/tContained Metal: 523000Contained Unit: kozView all details
Link to this fact

Identity

Project
Porvenir Project
Commodity
gold
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
reserve
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:391c25ce17f48e38a390

Resource Data

Category
probable
Tonnes
5827000
Grade
2.79
Grade Unit
g/t
Contained Metal
523000
Contained Unit
koz

Prior Estimate

Resource Date
2025-12-31
Prior Tonnes
6480000
Prior Grade
2.86
Prior Contained Metal
736000

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Probable Mineral Reserves for the Porvenir Project show a decrease in tonnage, grade, and contained gold compared to the prior estimate, though the prior contained metal was AuEq.

Positive factors

  • New Probable Mineral Reserves reported

Negative factors

  • Tonnage decreased compared to prior estimate
  • Grade decreased compared to prior estimate
  • Contained metal decreased compared to prior estimate
  • Effective date is older than RAG data, suggesting this is a prior estimate
  • Prior contained metal was AuEq, making direct comparison difficult

Evidence · text

“Probable Mineral Reserves: 5,827 kt averaging 2.79 g/t Au, ... containing 523 koz Au”

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

Tonnage Declinenegative

Resource tonnage decreased vs prior estimate — pit optimization removed marginal material or geological model revised down.

Why it applies: 5827000 against 6480000 previously

Contained Metal Declinenegative

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

Why it applies: 523000 against 736000 previously

probablePorvenir Project · silverTonnes: 5827000Grade: 12.07Grade Unit: g/tContained Metal: 2261000Contained Unit: kozView all details
Link to this fact

Identity

Project
Porvenir Project
Commodity
silver
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
reserve
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:391c25ce17f48e38a390

Resource Data

Category
probable
Tonnes
5827000
Grade
12.07
Grade Unit
g/t
Contained Metal
2261000
Contained Unit
koz

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Probable Mineral Reserves for the Porvenir Project include a significant silver component.

Positive factors

  • New Probable Mineral Reserves reported
  • Significant silver component

Negative factors

  • Effective date is older than RAG data, suggesting this is a prior estimate

Evidence · text

“Probable Mineral Reserves: 5,827 kt averaging ... 12.07 g/t Ag, ... containing ... 2,261 koz Ag”

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

probablePorvenir Project · zincTonnes: 5827000Grade: 2.61Grade Unit: %Contained Metal: 336000000Contained Unit: lbView all details
Link to this fact

Identity

Project
Porvenir Project
Commodity
zinc
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
reserve
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:391c25ce17f48e38a390

Resource Data

Category
probable
Tonnes
5827000
Grade
2.61
Grade Unit
%
Contained Metal
336000000
Contained Unit
lb

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Probable Mineral Reserves for the Porvenir Project include a significant zinc component.

Positive factors

  • New Probable Mineral Reserves reported
  • Significant zinc component

Negative factors

  • Effective date is older than RAG data, suggesting this is a prior estimate

Evidence · text

“Probable Mineral Reserves: 5,827 kt averaging ... 2.61% Zn and ... containing ... 336 Mlb Zn”

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

probablePorvenir Project · copperTonnes: 5827000Grade: 0.35Grade Unit: %Contained Metal: 45000000Contained Unit: lbView all details
Link to this fact

Identity

Project
Porvenir Project
Commodity
copper
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
reserve
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:391c25ce17f48e38a390

Resource Data

Category
probable
Tonnes
5827000
Grade
0.35
Grade Unit
%
Contained Metal
45000000
Contained Unit
lb

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Probable Mineral Reserves for the Porvenir Project include a significant copper component.

Positive factors

  • New Probable Mineral Reserves reported
  • Significant copper component

Negative factors

  • Effective date is older than RAG data, suggesting this is a prior estimate

Evidence · text

“Probable Mineral Reserves: 5,827 kt averaging ... 0.35% Cu, containing ... 45 Mlb Cu.”

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

indicatedGuillermina Deposit · goldTonnes: 1763000Grade: 0.97Grade Unit: g/tContained Metal: 55000Contained Unit: kozView all details
Link to this fact

Identity

Project
Guillermina Deposit
Commodity
gold
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:04dc400eb22080c72ede
Deposit or zone
Guillermina

Resource Data

Category
indicated
Tonnes
1763000
Grade
0.97
Grade Unit
g/t
Contained Metal
55000
Contained Unit
koz

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Indicated Mineral Resources for the Guillermina Deposit, contributing to the overall resource base.

Positive factors

  • New Indicated Mineral Resources reported

Evidence · text

“Indicated Mineral Resources of 1,763 kt grading 0.97 g/t Au, ... containing 55 koz Au”

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 Undisclosednegative

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

Why it applies: no cutoff_grade was stated

indicatedGuillermina Deposit · silverTonnes: 1763000Grade: 27.33Grade Unit: g/tContained Metal: 1549000Contained Unit: kozView all details
Link to this fact

Identity

Project
Guillermina Deposit
Commodity
silver
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:04dc400eb22080c72ede
Deposit or zone
Guillermina

Resource Data

Category
indicated
Tonnes
1763000
Grade
27.33
Grade Unit
g/t
Contained Metal
1549000
Contained Unit
koz

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Indicated Mineral Resources for the Guillermina Deposit include a significant silver component.

Positive factors

  • New Indicated Mineral Resources reported
  • Significant silver component

Evidence · text

“Indicated Mineral Resources of 1,763 kt grading ... 27.33 g/t Ag, ... containing ... 1,549 koz Ag”

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 Undisclosednegative

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

Why it applies: no cutoff_grade was stated

indicatedGuillermina Deposit · copperTonnes: 1763000Grade: 0.21Grade Unit: %Contained Metal: 8000000Contained Unit: lbView all details
Link to this fact

Identity

Project
Guillermina Deposit
Commodity
copper
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:04dc400eb22080c72ede
Deposit or zone
Guillermina

Resource Data

Category
indicated
Tonnes
1763000
Grade
0.21
Grade Unit
%
Contained Metal
8000000
Contained Unit
lb

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Indicated Mineral Resources for the Guillermina Deposit include a copper component.

Positive factors

  • New Indicated Mineral Resources reported
  • Copper component adds to polymetallic nature

Evidence · text

“Indicated Mineral Resources of 1,763 kt grading ... 0.21% Cu, and ... containing ... 8 Mlb Cu”

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 Undisclosednegative

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

Why it applies: no cutoff_grade was stated

indicatedGuillermina Deposit · zincTonnes: 1763000Grade: 6.61Grade Unit: %Contained Metal: 257000000Contained Unit: lbView all details
Link to this fact

Identity

Project
Guillermina Deposit
Commodity
zinc
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:04dc400eb22080c72ede
Deposit or zone
Guillermina

Resource Data

Category
indicated
Tonnes
1763000
Grade
6.61
Grade Unit
%
Contained Metal
257000000
Contained Unit
lb

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Indicated Mineral Resources for the Guillermina Deposit include a high-grade zinc component, making it a prospective feed source.

Positive factors

  • New Indicated Mineral Resources reported
  • High-grade zinc component

Evidence · text

“Indicated Mineral Resources of 1,763 kt grading ... 6.61% Zn, containing ... 257 Mlb Zn”

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 Undisclosednegative

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

Why it applies: no cutoff_grade was stated

inferredGuillermina Deposit · goldTonnes: 1118000Grade: 1.44Grade Unit: g/tContained Metal: 52000Contained Unit: kozView all details
Link to this fact

Identity

Project
Guillermina Deposit
Commodity
gold
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:fcfdfc5c84e06fa97f28
Deposit or zone
Guillermina

Resource Data

Category
inferred
Tonnes
1118000
Grade
1.44
Grade Unit
g/t
Contained Metal
52000
Contained Unit
koz

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Inferred Mineral Resources for the Guillermina Deposit, providing future exploration potential.

Positive factors

  • New Inferred Mineral Resources reported

Negative factors

  • Inferred category has lower confidence

Evidence · text

“Inferred Mineral Resources of 1,118 kt grading 1.44 g/t Au, ... containing 52 koz Au”

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

inferredGuillermina Deposit · silverTonnes: 1118000Grade: 30.15Grade Unit: g/tContained Metal: 1084000Contained Unit: kozView all details
Link to this fact

Identity

Project
Guillermina Deposit
Commodity
silver
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:fcfdfc5c84e06fa97f28
Deposit or zone
Guillermina

Resource Data

Category
inferred
Tonnes
1118000
Grade
30.15
Grade Unit
g/t
Contained Metal
1084000
Contained Unit
koz

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Inferred Mineral Resources for the Guillermina Deposit include a significant silver component.

Positive factors

  • New Inferred Mineral Resources reported
  • Significant silver component

Negative factors

  • Inferred category has lower confidence

Evidence · text

“Inferred Mineral Resources of 1,118 kt grading ... 30.15 g/t Ag, ... containing ... 1,084 koz Ag”

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

inferredGuillermina Deposit · copperTonnes: 1118000Grade: 0.17Grade Unit: %Contained Metal: 4000000Contained Unit: lbView all details
Link to this fact

Identity

Project
Guillermina Deposit
Commodity
copper
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:fcfdfc5c84e06fa97f28
Deposit or zone
Guillermina

Resource Data

Category
inferred
Tonnes
1118000
Grade
0.17
Grade Unit
%
Contained Metal
4000000
Contained Unit
lb

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Inferred Mineral Resources for the Guillermina Deposit include a copper component.

Positive factors

  • New Inferred Mineral Resources reported
  • Copper component adds to polymetallic nature

Negative factors

  • Inferred category has lower confidence

Evidence · text

“Inferred Mineral Resources of 1,118 kt grading ... 0.17% Cu, and ... containing ... 4 Mlb Cu”

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

inferredGuillermina Deposit · zincTonnes: 1118000Grade: 5.5Grade Unit: %Contained Metal: 136000000Contained Unit: lbView all details
Link to this fact

Identity

Project
Guillermina Deposit
Commodity
zinc
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:fcfdfc5c84e06fa97f28
Deposit or zone
Guillermina

Resource Data

Category
inferred
Tonnes
1118000
Grade
5.5
Grade Unit
%
Contained Metal
136000000
Contained Unit
lb

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Inferred Mineral Resources for the Guillermina Deposit include a significant zinc component.

Positive factors

  • New Inferred Mineral Resources reported
  • Significant zinc component

Negative factors

  • Inferred category has lower confidence

Evidence · text

“Inferred Mineral Resources of 1,118 kt grading ... 5.50% Zn, containing ... 136 Mlb Zn.”

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

indicatedLeticia Deposit · goldTonnes: 300400Grade: 3.4Grade Unit: g/tContained Metal: 32900Contained Unit: kozView all details
Link to this fact

Identity

Project
Leticia Deposit
Commodity
gold
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:a3d956c1d788fbab6218
Deposit or zone
Leticia

Resource Data

Category
indicated
Tonnes
300400
Grade
3.4
Grade Unit
g/t
Contained Metal
32900
Contained Unit
koz

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Indicated Mineral Resources for the Leticia Deposit include a high-grade gold component.

Positive factors

  • New Indicated Mineral Resources reported
  • High-grade gold component

Evidence · text

“Indicated Mineral Resources of 300.4 kt grading 3.40 g/t Au, ... containing 32.9 koz Au”

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 Undisclosednegative

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

Why it applies: no cutoff_grade was stated

indicatedLeticia Deposit · silverTonnes: 300400Grade: 13.31Grade Unit: g/tContained Metal: 128600Contained Unit: kozView all details
Link to this fact

Identity

Project
Leticia Deposit
Commodity
silver
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:a3d956c1d788fbab6218
Deposit or zone
Leticia

Resource Data

Category
indicated
Tonnes
300400
Grade
13.31
Grade Unit
g/t
Contained Metal
128600
Contained Unit
koz

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Indicated Mineral Resources for the Leticia Deposit include a significant silver component.

Positive factors

  • New Indicated Mineral Resources reported
  • Significant silver component

Evidence · text

“Indicated Mineral Resources of 300.4 kt grading ... 13.31 g/t Ag, ... containing ... 128.6 koz Ag”

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 Undisclosednegative

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

Why it applies: no cutoff_grade was stated

indicatedLeticia Deposit · copperTonnes: 300400Grade: 0.54Grade Unit: %Contained Metal: 3600000Contained Unit: lbView all details
Link to this fact

Identity

Project
Leticia Deposit
Commodity
copper
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:a3d956c1d788fbab6218
Deposit or zone
Leticia

Resource Data

Category
indicated
Tonnes
300400
Grade
0.54
Grade Unit
%
Contained Metal
3600000
Contained Unit
lb

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Indicated Mineral Resources for the Leticia Deposit include a copper component.

Positive factors

  • New Indicated Mineral Resources reported
  • Copper component adds to polymetallic nature

Evidence · text

“Indicated Mineral Resources of 300.4 kt grading ... 0.54% Cu, and ... 3.6 Mlb Cu”

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 Undisclosednegative

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

Why it applies: no cutoff_grade was stated

indicatedLeticia Deposit · zincTonnes: 300400Grade: 1.71Grade Unit: %Contained Metal: 11300000Contained Unit: lbView all details
Link to this fact

Identity

Project
Leticia Deposit
Commodity
zinc
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:a3d956c1d788fbab6218
Deposit or zone
Leticia

Resource Data

Category
indicated
Tonnes
300400
Grade
1.71
Grade Unit
%
Contained Metal
11300000
Contained Unit
lb

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Indicated Mineral Resources for the Leticia Deposit include a zinc component.

Positive factors

  • New Indicated Mineral Resources reported
  • Zinc component adds to polymetallic nature

Evidence · text

“Indicated Mineral Resources of 300.4 kt grading ... 1.71% Zn, containing 11.3 Mlb Zn”

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 Undisclosednegative

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

Why it applies: no cutoff_grade was stated

inferredLeticia Deposit · goldTonnes: 137400Grade: 2.81Grade Unit: g/tContained Metal: 12400Contained Unit: kozView all details
Link to this fact

Identity

Project
Leticia Deposit
Commodity
gold
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:1ad1dc2909ae8d1c925b
Deposit or zone
Leticia

Resource Data

Category
inferred
Tonnes
137400
Grade
2.81
Grade Unit
g/t
Contained Metal
12400
Contained Unit
koz

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Inferred Mineral Resources for the Leticia Deposit, providing future exploration potential.

Positive factors

  • New Inferred Mineral Resources reported

Negative factors

  • Inferred category has lower confidence

Evidence · text

“Inferred Mineral Resources of 137.4 kt grading 2.81 g/t Au, ... containing 12.4 koz Au”

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

inferredLeticia Deposit · silverTonnes: 137400Grade: 8.53Grade Unit: g/tContained Metal: 37700Contained Unit: kozView all details
Link to this fact

Identity

Project
Leticia Deposit
Commodity
silver
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:1ad1dc2909ae8d1c925b
Deposit or zone
Leticia

Resource Data

Category
inferred
Tonnes
137400
Grade
8.53
Grade Unit
g/t
Contained Metal
37700
Contained Unit
koz

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Inferred Mineral Resources for the Leticia Deposit include a silver component.

Positive factors

  • New Inferred Mineral Resources reported
  • Silver component adds to polymetallic nature

Negative factors

  • Inferred category has lower confidence

Evidence · text

“Inferred Mineral Resources of 137.4 kt grading ... 8.53 g/t Ag, ... containing ... 37.7 koz Ag”

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

inferredLeticia Deposit · copperTonnes: 137400Grade: 0.36Grade Unit: %Contained Metal: 1100000Contained Unit: lbView all details
Link to this fact

Identity

Project
Leticia Deposit
Commodity
copper
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:1ad1dc2909ae8d1c925b
Deposit or zone
Leticia

Resource Data

Category
inferred
Tonnes
137400
Grade
0.36
Grade Unit
%
Contained Metal
1100000
Contained Unit
lb

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Inferred Mineral Resources for the Leticia Deposit include a copper component.

Positive factors

  • New Inferred Mineral Resources reported
  • Copper component adds to polymetallic nature

Negative factors

  • Inferred category has lower confidence

Evidence · text

“Inferred Mineral Resources of 137.4 kt grading ... 0.36% Cu, and ... 1.1 Mlb Cu”

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

inferredLeticia Deposit · zincTonnes: 137400Grade: 0.82Grade Unit: %Contained Metal: 2500000Contained Unit: lbView all details
Link to this fact

Identity

Project
Leticia Deposit
Commodity
zinc
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:1ad1dc2909ae8d1c925b
Deposit or zone
Leticia

Resource Data

Category
inferred
Tonnes
137400
Grade
0.82
Grade Unit
%
Contained Metal
2500000
Contained Unit
lb

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Inferred Mineral Resources for the Leticia Deposit include a zinc component.

Positive factors

  • New Inferred Mineral Resources reported
  • Zinc component adds to polymetallic nature

Negative factors

  • Inferred category has lower confidence

Evidence · text

“Inferred Mineral Resources of 137.4 kt grading ... 0.82% Zn, containing 2.5 Mlb Zn.”

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

inferredSan Antonio Deposit · goldTonnes: 1313100Grade: 2.23Grade Unit: g/tContained Metal: 94000Contained Unit: kozView all details
Link to this fact

Identity

Project
San Antonio Deposit
Commodity
gold
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:f892c51996b32b6be470
Deposit or zone
San Antonio

Resource Data

Category
inferred
Tonnes
1313100
Grade
2.23
Grade Unit
g/t
Contained Metal
94000
Contained Unit
koz

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Inferred Mineral Resources for the San Antonio Deposit, providing future exploration potential.

Positive factors

  • New Inferred Mineral Resources reported

Negative factors

  • Inferred category has lower confidence

Evidence · text

“Inferred Mineral Resources of 1,313.1 kt grading 2.23 g/t Au, ... containing 94 koz Au”

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

inferredSan Antonio Deposit · silverTonnes: 1313100Grade: 12.33Grade Unit: g/tContained Metal: 520500Contained Unit: kozView all details
Link to this fact

Identity

Project
San Antonio Deposit
Commodity
silver
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:f892c51996b32b6be470
Deposit or zone
San Antonio

Resource Data

Category
inferred
Tonnes
1313100
Grade
12.33
Grade Unit
g/t
Contained Metal
520500
Contained Unit
koz

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Inferred Mineral Resources for the San Antonio Deposit include a significant silver component.

Positive factors

  • New Inferred Mineral Resources reported
  • Significant silver component

Negative factors

  • Inferred category has lower confidence

Evidence · text

“Inferred Mineral Resources of 1,313.1 kt grading ... 12.33 g/t Ag, ... containing ... 520.5 koz Ag”

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

inferredSan Antonio Deposit · copperTonnes: 1313100Grade: 0.93Grade Unit: %Contained Metal: 27000000Contained Unit: lbView all details
Link to this fact

Identity

Project
San Antonio Deposit
Commodity
copper
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:f892c51996b32b6be470
Deposit or zone
San Antonio

Resource Data

Category
inferred
Tonnes
1313100
Grade
0.93
Grade Unit
%
Contained Metal
27000000
Contained Unit
lb

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Inferred Mineral Resources for the San Antonio Deposit include a significant copper component.

Positive factors

  • New Inferred Mineral Resources reported
  • Significant copper component

Negative factors

  • Inferred category has lower confidence

Evidence · text

“Inferred Mineral Resources of 1,313.1 kt grading ... 0.93% Cu, and ... 27 Mlb Cu”

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

inferredSan Antonio Deposit · zincTonnes: 1313100Grade: 0.32Grade Unit: %Contained Metal: 9200000Contained Unit: lbView all details
Link to this fact

Identity

Project
San Antonio Deposit
Commodity
zinc
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:f892c51996b32b6be470
Deposit or zone
San Antonio

Resource Data

Category
inferred
Tonnes
1313100
Grade
0.32
Grade Unit
%
Contained Metal
9200000
Contained Unit
lb

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Inferred Mineral Resources for the San Antonio Deposit include a zinc component.

Positive factors

  • New Inferred Mineral Resources reported
  • Zinc component adds to polymetallic nature

Negative factors

  • Inferred category has lower confidence

Evidence · text

“Inferred Mineral Resources of 1,313.1 kt grading ... 0.32% Zn, containing 9.2 Mlb Zn.”

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

indicatedLuna Roja Deposit · goldTonnes: 841000Grade: 2.77Grade Unit: g/tContained Metal: 74900Contained Unit: kozView all details
Link to this fact

Identity

Project
Luna Roja Deposit
Commodity
gold
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:9e45f137f96a6338d71b
Deposit or zone
Luna Roja

Resource Data

Category
indicated
Tonnes
841000
Grade
2.77
Grade Unit
g/t
Contained Metal
74900
Contained Unit
koz

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Measured and Indicated Mineral Resources for the Luna Roja Deposit, contributing to the overall resource base.

Positive factors

  • New Measured and Indicated Mineral Resources reported

Evidence · text

“Measured and Indicated Mineral Resources of 841 kt grading 2.77 g/t Au containing approximately 74.9 koz Au”

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 Undisclosednegative

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

Why it applies: no cutoff_grade was stated

inferredLuna Roja Deposit · goldTonnes: 1160000Grade: 2.59Grade Unit: g/tContained Metal: 96600Contained Unit: kozView all details
Link to this fact

Identity

Project
Luna Roja Deposit
Commodity
gold
Region
nicaragua
Reported Region
Nicaragua
Ticker
MSA

Resource scope

Estimate type
resource
Effective date
2025-12-31T00:00:00.000Z
Resource group id
resource:9ce23971cb32aace1257
Deposit or zone
Luna Roja

Resource Data

Category
inferred
Tonnes
1160000
Grade
2.59
Grade Unit
g/t
Contained Metal
96600
Contained Unit
koz

Prior Estimate

Resource Date
2025-12-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Updated Inferred Mineral Resources for the Luna Roja Deposit, providing future exploration potential.

Positive factors

  • New Inferred Mineral Resources reported

Negative factors

  • Inferred category has lower confidence

Evidence · text

“Inferred Mineral Resources of 1,160 kt grading 2.59 g/t Au containing approximately 96.6 koz Au.”

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

Fact 33Panama and Pioneer MinesView all details
Link to this fact

Identity

Project
Panama and Pioneer Mines
Region
nicaragua
Reported Region
nicaragua
Ticker
MSA

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Near-mine drilling at Panama and Pioneer Mines is focused on resource and reserve expansion, indicating ongoing development.

Positive factors

  • Drilling aimed at increasing Mineral Resources and Reserves

Negative factors

  • Progress slightly behind schedule

Evidence · text

“A total of 5,311 metres of diamond drilling in 19 holes was completed in the first quarter of 2026, ... The objective of this campaign is to increase the Mineral Resources and Mineral Reserves at the Panama Mine and the Pioneer Mine.”

Tags used in scoring

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

Fact 34Bonanza block (Orpheus/Xiloa, La Reforma NE)View all details
Link to this fact

Identity

Project
Bonanza block (Orpheus/Xiloa, La Reforma NE)
Region
nicaragua
Reported Region
nicaragua
Ticker
MSA

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Brownfield drilling in the Bonanza block is part of the company's resource replacement strategy, indicating efforts to maintain the resource base.

Positive factors

  • Drilling part of ongoing resource replacement strategy

Evidence · text

“During the first quarter of 2026, the Company completed 4,700 meters of diamond drilling in 16 holes, ... This drilling campaign is part of the Company’s ongoing resource replacement strategy at the Panama and Pioneer mines.”

Tags used in scoring

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

inferredLeticia DepositView all details
Link to this fact

Identity

Project
Leticia Deposit
Region
nicaragua
Reported Region
nicaragua
Ticker
MSA

Resource scope

Deposit or zone
Leticia

Resource Data

Category
inferred

Review

Needs Review
No
Historical
No

Dates

Event date
2026-05-06T00:00:00.000Z

Reasoning: Infill drilling at the Leticia Deposit is focused on upgrading resource confidence, a positive de-risking step.

Positive factors

  • Infill drilling aimed at upgrading Inferred to Indicated resources

Evidence · text

“A total of 1,812 metres of diamond drilling in 5 holes was completed in the first quarter of 2026, ... This drilling campaign focused on infill drilling of current Inferred Mineral Resources, with the goal of upgrading them to the Indicated Mineral Resource category.”

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

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.