Marimaca Reports Further High-Grade Copper and Silver Intersections more than 600m from Pampa Medina West Step-Out Drilling

Original announcement by tmx on

Company
Marimaca Copper Corp.
Ticker
MARI
Exchange
TSX
Region
Chile
Primary commodity
Copper
Secondary commodities
Silver
Document categories
Drill results
Extracted
2026-09-14 11:00:28 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Marimaca Copper announced further high-grade copper and silver intersections from step-out drilling at its Pampa Medina deposit, extending mineralization over 600m to the west. Key intercepts include 74m at 1.21% Cu and 7.9 gpt Ag, and 36m at 1.08% Cu and 13.8 gpt Ag, demonstrating strong continuity and significant true thicknesses. The company plans to expand its 2026 drill program to 100,000m focusing on definition drilling and further step-outs.

Reasoning: Marimaca Copper reported strong drill results from step-out drilling at Pampa Medina, extending high-grade copper-silver manto-type mineralization significantly to the west with notable widths, indicating a larger and potentially more robust deposit amenable to bulk tonnage mining.

Positive factors

  • High-grade copper intersections
  • Significant step-out extensions (600m west)
  • Demonstrates western continuity of mineralization
  • Unusually large true thicknesses (20m-100m+)
  • Comprehensive QA/QC disclosure and QP/CP sign-off
  • Potential for bulk tonnage mining methods

Negative factors

  • No copper equivalent grades reported due to lack of metallurgical programs
  • True widths are estimated (80-90% of downhole length) rather than precisely measured

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

Facts used in scoring: 49

Classification and evidence

Step-Out Extensionpositive

Mineralization extended beyond the previously known limit.

Why it applies: Drilling intersected high-grade manto-type copper-silver mineralization in significant step-outs west from previous step-out drilling and demonstrates the western continuity of the favourable, mineralized sediment horizons.

Evidence · text

“Drilling intersected high-grade manto-type copper-silver mineralization in significant step-outs west from previous step-out drilling and demonstrates the western continuity”

QA/QC Disclosedpositive

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

Why it applies: A full QA/QC program, involving insertion of appropriate blanks, standards and duplicates was employed with acceptable results.

Evidence · text

“A full QA/QC program, involving insertion of appropriate blanks, standards and duplicates was employed with acceptable results.”

QP/CP Signedpositive · Story-specific tag

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 technical information in this news release... was prepared under the supervision of, or has been reviewed by Sergio Rivera, Vice President of Exploration, Marimaca Copper Corp... who is the Qualified Person for the purposes of NI 43-101... and a Competent Person as defined in the 2012 Edition of the Joint Ore Reserves Committee Australasian Code.

Evidence · text

“The technical information in this news release, including the information that relates to geology, drilling and mineralization was prepared under the supervision of, or has been reviewed by Sergio Rivera, Vice President of Exploration, Marimaca Copper Corp, a geologist with more than 40 years of experience and a member of the Colegio de Geólogos de Chile and of the Institute of Mining Engineers of Chile, and who is the Qualified Person for the purposes of NI 43-101 responsible for the design and execution of the drilling program. The information in this announcement which relates to exploration results for the Pampa Medina Project is based on, and fairly reflects, information and supporting documentation prepared by Sergio Rivera, VP Exploration of Marimaca, a Competent Person who is a member of the Comision Minera (Chilean Mining Commission), Colegio de Geólogos de Chile and of the Institute of Mining Engineers of Chile. Mr. Rivera has sufficient experience that is relevant to the style of mineralisation and types of deposit under consideration and to the activity being undertaken to qualify as a Competent Person as defined in the 2012 Edition of the Joint Ore Reserves Committee Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves. Mr. Rivera consents to the inclusion in this announcement of the matters based on his information in the form and context in which it appears.”

Compositing Transparentpositive

Cut-off grade and internal dilution rules are clearly stated for reported intervals.

Why it applies: Length weighted averages were used to calculate grade over width. No specific grade cap or cut-off was used during grade width calculations.

Evidence · text

“Length weighted averages were used to calculate grade over width. No specific grade cap or cut-off was used during grade width calculations.”

Apparent Width Onlynegative

Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.

Why it applies: True widths are estimated at 80-90% of the reported downhole intersection, however drilling generally targets subparallel intersections of the mineralized manto units... All intersections are reported on a downhole basis.

Evidence · text

“True widths are estimated at 80-90% of the reported downhole intersection, however drilling generally targets subparallel intersections of the mineralized manto units as understood/interpreted at the time of drilling All intersections are reported on a downhole basis.”

Extracted facts

Stored fact records: 49. Some facts used in scoring do not have a stored record.

Drill Results (49)

SWRD-01Pampa Medina West · copperGrade: 1.43Grade Unit: %Intercept: 38 mView all details
Link to this fact

Identity

Hole ID
SWRD-01
Project
Pampa Medina West
Commodity
copper
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
1.43
Grade Unit
%
Intercept
38 m
From
694 m
To
732 m
Hole Depth
955.6 m
Intercept Depth
694 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-01:694-732
Mining Method
open_pit

Location

Easting
406194.26
Northing
7440803.69
CRS
WGS84 UTM
Elevation
1288.92 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This intercept shows a strong copper grade over a good width, contributing to the overall positive step-out results at Pampa Medina.

Positive factors

  • Strong copper grade (1.43%)
  • Good intercept length (38m)
  • Part of significant step-out drilling

Evidence · table

“1.43”

Context: 38

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-01Pampa Medina West · silverGrade: 11.8Grade Unit: g/tIntercept: 38 mView all details
Link to this fact

Identity

Hole ID
SWRD-01
Project
Pampa Medina West
Commodity
silver
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
11.8
Grade Unit
g/t
Intercept
38 m
From
694 m
To
732 m
Hole Depth
955.6 m
Intercept Depth
694 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-01:694-732
Mining Method
open_pit

Location

Easting
406194.26
Northing
7440803.69
CRS
WGS84 UTM
Elevation
1288.92 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: The silver grade is low but provides a by-product credit alongside the primary copper mineralization.

Positive factors

  • Silver by-product credit

Negative factors

  • Low silver grade (11.8 gpt)

Evidence · table

“11.8”

Context: 38

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-01Pampa Medina West · copperGrade: 2.11Grade Unit: %Intercept: 8 mView all details
Link to this fact

Identity

Hole ID
SWRD-01
Project
Pampa Medina West
Commodity
copper
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
2.11
Grade Unit
%
Intercept
8 m
From
694 m
To
702 m
Hole Depth
955.6 m
Intercept Depth
694 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-01:694-702
Mining Method
open_pit

Location

Easting
406194.26
Northing
7440803.69
CRS
WGS84 UTM
Elevation
1288.92 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This high-grade sub-interval significantly enhances the overall quality of the broader intercept, indicating a richer zone within the mineralization.

Positive factors

  • High-grade copper (2.11%)
  • Contributes to overall strong intercept

Evidence · table

“2.11”

Context: 8

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-01Pampa Medina West · silverGrade: 15.5Grade Unit: g/tIntercept: 8 mView all details
Link to this fact

Identity

Hole ID
SWRD-01
Project
Pampa Medina West
Commodity
silver
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
15.5
Grade Unit
g/t
Intercept
8 m
From
694 m
To
702 m
Hole Depth
955.6 m
Intercept Depth
694 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-01:694-702
Mining Method
open_pit

Location

Easting
406194.26
Northing
7440803.69
CRS
WGS84 UTM
Elevation
1288.92 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: The silver grade is low but provides a by-product credit alongside the primary copper mineralization.

Positive factors

  • Silver by-product credit

Negative factors

  • Low silver grade (15.5 gpt)

Evidence · table

“15.5”

Context: 8

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-01Pampa Medina West · copperGrade: 1.86Grade Unit: %Intercept: 14 mView all details
Link to this fact

Identity

Hole ID
SWRD-01
Project
Pampa Medina West
Commodity
copper
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
1.86
Grade Unit
%
Intercept
14 m
From
718 m
To
732 m
Hole Depth
955.6 m
Intercept Depth
694 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-01:718-732
Mining Method
open_pit

Location

Easting
406194.26
Northing
7440803.69
CRS
WGS84 UTM
Elevation
1288.92 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This high-grade sub-interval further enhances the overall quality of the broader intercept, indicating another rich zone within the mineralization.

Positive factors

  • High-grade copper (1.86%)
  • Contributes to overall strong intercept

Evidence · table

“1.86”

Context: 14

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-01Pampa Medina West · silverGrade: 19.3Grade Unit: g/tIntercept: 14 mView all details
Link to this fact

Identity

Hole ID
SWRD-01
Project
Pampa Medina West
Commodity
silver
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
19.3
Grade Unit
g/t
Intercept
14 m
From
718 m
To
732 m
Hole Depth
955.6 m
Intercept Depth
694 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-01:718-732
Mining Method
open_pit

Location

Easting
406194.26
Northing
7440803.69
CRS
WGS84 UTM
Elevation
1288.92 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: The silver grade is low but provides a by-product credit alongside the primary copper mineralization.

Positive factors

  • Silver by-product credit

Negative factors

  • Low silver grade (19.3 gpt)

Evidence · table

“19.3”

Context: 14

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-01Pampa Medina West · copperGrade: 0.84Grade Unit: %Intercept: 20 mView all details
Link to this fact

Identity

Hole ID
SWRD-01
Project
Pampa Medina West
Commodity
copper
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
0.84
Grade Unit
%
Intercept
20 m
From
848 m
To
868 m
Hole Depth
955.6 m
Intercept Depth
694 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-01:848-868
Mining Method
open_pit

Location

Easting
406194.26
Northing
7440803.69
CRS
WGS84 UTM
Elevation
1288.92 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This intercept shows moderate copper mineralization over a good width, indicating continued presence of mineralization at depth.

Positive factors

  • Moderate copper grade (0.84%)
  • Good intercept length (20m)

Evidence · table

“0.84”

Context: 20

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-01Pampa Medina West · silverGrade: 3Grade Unit: g/tIntercept: 20 mView all details
Link to this fact

Identity

Hole ID
SWRD-01
Project
Pampa Medina West
Commodity
silver
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
3
Grade Unit
g/t
Intercept
20 m
From
848 m
To
868 m
Hole Depth
955.6 m
Intercept Depth
694 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-01:848-868
Mining Method
open_pit

Location

Easting
406194.26
Northing
7440803.69
CRS
WGS84 UTM
Elevation
1288.92 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: The silver grade is very low, providing minimal by-product credit.

Positive factors

  • Silver by-product credit

Negative factors

  • Very low silver grade (3 gpt)

Evidence · table

“3.0”

Context: 20

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-02Pampa Medina West · copperGrade: 1.21Grade Unit: %Intercept: 74 mView all details
Link to this fact

Identity

Hole ID
SWRD-02
Project
Pampa Medina West
Commodity
copper
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
1.21
Grade Unit
%
Intercept
74 m
From
520 m
To
594 m
Hole Depth
944 m
Intercept Depth
520 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-02:520-594
Mining Method
open_pit

Location

Easting
406198.93
Northing
7440504.24
CRS
WGS84 UTM
Elevation
1287 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This is a highly material intercept with strong copper grade over an exceptional width, confirming significant western extension of the mineralization.

Positive factors

  • Strong copper grade (1.21%)
  • Exceptional intercept length (74m)
  • Located 600m west of previous drilling, demonstrating significant extension

Evidence · table

“1.21”

Context: 74

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-02Pampa Medina West · silverGrade: 7.9Grade Unit: g/tIntercept: 74 mView all details
Link to this fact

Identity

Hole ID
SWRD-02
Project
Pampa Medina West
Commodity
silver
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
7.9
Grade Unit
g/t
Intercept
74 m
From
520 m
To
594 m
Hole Depth
944 m
Intercept Depth
520 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-02:520-594
Mining Method
open_pit

Location

Easting
406198.93
Northing
7440504.24
CRS
WGS84 UTM
Elevation
1287 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: The silver grade is low but provides a by-product credit alongside the primary copper mineralization.

Positive factors

  • Silver by-product credit

Negative factors

  • Low silver grade (7.9 gpt)

Evidence · table

“7.9”

Context: 74

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-02Pampa Medina West · copperGrade: 1.62Grade Unit: %Intercept: 48 mView all details
Link to this fact

Identity

Hole ID
SWRD-02
Project
Pampa Medina West
Commodity
copper
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
1.62
Grade Unit
%
Intercept
48 m
From
520 m
To
568 m
Hole Depth
944 m
Intercept Depth
520 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-02:520-568
Mining Method
open_pit

Location

Easting
406198.93
Northing
7440504.24
CRS
WGS84 UTM
Elevation
1287 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This high-grade sub-interval significantly enhances the overall quality of the broader intercept, indicating a very rich zone within the mineralization.

Positive factors

  • Strong copper grade (1.62%)
  • Excellent intercept length (48m)
  • Enhances overall significant intercept

Evidence · table

“1.62”

Context: 48

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-02Pampa Medina West · silverGrade: 11.5Grade Unit: g/tIntercept: 48 mView all details
Link to this fact

Identity

Hole ID
SWRD-02
Project
Pampa Medina West
Commodity
silver
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
11.5
Grade Unit
g/t
Intercept
48 m
From
520 m
To
568 m
Hole Depth
944 m
Intercept Depth
520 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-02:520-568
Mining Method
open_pit

Location

Easting
406198.93
Northing
7440504.24
CRS
WGS84 UTM
Elevation
1287 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: The silver grade is low but provides a by-product credit alongside the primary copper mineralization.

Positive factors

  • Silver by-product credit

Negative factors

  • Low silver grade (11.5 gpt)

Evidence · table

“11.5”

Context: 48

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-02Pampa Medina West · copperGrade: 2.07Grade Unit: %Intercept: 12 mView all details
Link to this fact

Identity

Hole ID
SWRD-02
Project
Pampa Medina West
Commodity
copper
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
2.07
Grade Unit
%
Intercept
12 m
From
532 m
To
544 m
Hole Depth
944 m
Intercept Depth
520 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-02:532-544
Mining Method
open_pit

Location

Easting
406198.93
Northing
7440504.24
CRS
WGS84 UTM
Elevation
1287 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This high-grade sub-interval further enhances the overall quality of the broader intercept, indicating a very rich zone within the mineralization.

Positive factors

  • High-grade copper (2.07%)
  • Good intercept length (12m)
  • Enhances overall significant intercept

Evidence · table

“2.07”

Context: 12

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-02Pampa Medina West · silverGrade: 17.2Grade Unit: g/tIntercept: 12 mView all details
Link to this fact

Identity

Hole ID
SWRD-02
Project
Pampa Medina West
Commodity
silver
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
17.2
Grade Unit
g/t
Intercept
12 m
From
532 m
To
544 m
Hole Depth
944 m
Intercept Depth
520 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-02:532-544
Mining Method
open_pit

Location

Easting
406198.93
Northing
7440504.24
CRS
WGS84 UTM
Elevation
1287 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: The silver grade is low but provides a by-product credit alongside the primary copper mineralization.

Positive factors

  • Silver by-product credit

Negative factors

  • Low silver grade (17.2 gpt)

Evidence · table

“17.2”

Context: 12

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-02Pampa Medina West · copperGrade: 0.52Grade Unit: %Intercept: 28 mView all details
Link to this fact

Identity

Hole ID
SWRD-02
Project
Pampa Medina West
Commodity
copper
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
0.52
Grade Unit
%
Intercept
28 m
From
814 m
To
842 m
Hole Depth
944 m
Intercept Depth
520 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-02:814-842
Mining Method
open_pit

Location

Easting
406198.93
Northing
7440504.24
CRS
WGS84 UTM
Elevation
1287 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This intercept shows moderate copper mineralization over a good width, indicating continued presence of mineralization at depth.

Positive factors

  • Moderate copper grade (0.52%)
  • Good intercept length (28m)

Evidence · table

“0.52”

Context: 28

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-03Pampa Medina West · copperGrade: 0.55Grade Unit: %Intercept: 18 mView all details
Link to this fact

Identity

Hole ID
SWRD-03
Project
Pampa Medina West
Commodity
copper
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
0.55
Grade Unit
%
Intercept
18 m
From
736 m
To
754 m
Hole Depth
956 m
Intercept Depth
736 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-03:736-754
Mining Method
open_pit

Location

Easting
405899.9
Northing
7440801.41
CRS
WGS84 UTM
Elevation
1296.05 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This intercept shows moderate copper mineralization over a good width, indicating continued presence of mineralization.

Positive factors

  • Moderate copper grade (0.55%)
  • Good intercept length (18m)

Evidence · table

“0.55”

Context: 18

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-03Pampa Medina West · copperGrade: 0.49Grade Unit: %Intercept: 58 mView all details
Link to this fact

Identity

Hole ID
SWRD-03
Project
Pampa Medina West
Commodity
copper
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
0.49
Grade Unit
%
Intercept
58 m
From
822 m
To
880 m
Hole Depth
956 m
Intercept Depth
736 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-03:822-880
Mining Method
open_pit

Location

Easting
405899.9
Northing
7440801.41
CRS
WGS84 UTM
Elevation
1296.05 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This intercept shows moderate copper mineralization over an excellent width, indicating a substantial mineralized zone.

Positive factors

  • Moderate copper grade (0.49%)
  • Excellent intercept length (58m)

Evidence · table

“0.49”

Context: 58

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-03Pampa Medina West · silverGrade: 3.3Grade Unit: g/tIntercept: 58 mView all details
Link to this fact

Identity

Hole ID
SWRD-03
Project
Pampa Medina West
Commodity
silver
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
3.3
Grade Unit
g/t
Intercept
58 m
From
822 m
To
880 m
Hole Depth
956 m
Intercept Depth
736 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-03:822-880
Mining Method
open_pit

Location

Easting
405899.9
Northing
7440801.41
CRS
WGS84 UTM
Elevation
1296.05 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: The silver grade is very low, providing minimal by-product credit.

Positive factors

  • Silver by-product credit

Negative factors

  • Very low silver grade (3.3 gpt)

Evidence · table

“3.3”

Context: 58

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-03Pampa Medina West · copperGrade: 0.72Grade Unit: %Intercept: 28 mView all details
Link to this fact

Identity

Hole ID
SWRD-03
Project
Pampa Medina West
Commodity
copper
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
0.72
Grade Unit
%
Intercept
28 m
From
840 m
To
868 m
Hole Depth
956 m
Intercept Depth
736 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-03:840-868
Mining Method
open_pit

Location

Easting
405899.9
Northing
7440801.41
CRS
WGS84 UTM
Elevation
1296.05 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This intercept shows moderate copper mineralization over a good width, contributing to the overall mineralized zone.

Positive factors

  • Moderate copper grade (0.72%)
  • Good intercept length (28m)

Evidence · table

“0.72”

Context: 28

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-03Pampa Medina West · silverGrade: 5.9Grade Unit: g/tIntercept: 28 mView all details
Link to this fact

Identity

Hole ID
SWRD-03
Project
Pampa Medina West
Commodity
silver
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
5.9
Grade Unit
g/t
Intercept
28 m
From
840 m
To
868 m
Hole Depth
956 m
Intercept Depth
736 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-03:840-868
Mining Method
open_pit

Location

Easting
405899.9
Northing
7440801.41
CRS
WGS84 UTM
Elevation
1296.05 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: The silver grade is very low, providing minimal by-product credit.

Positive factors

  • Silver by-product credit

Negative factors

  • Very low silver grade (5.9 gpt)

Evidence · table

“5.9”

Context: 28

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-04Pampa Medina West · copperGrade: 0.49Grade Unit: %Intercept: 58 mView all details
Link to this fact

Identity

Hole ID
SWRD-04
Project
Pampa Medina West
Commodity
copper
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
0.49
Grade Unit
%
Intercept
58 m
From
322 m
To
380 m
Hole Depth
898 m
Intercept Depth
322 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-04:322-380
Mining Method
open_pit

Location

Easting
405900.19
Northing
7440502.19
CRS
WGS84 UTM
Elevation
1293.18 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This intercept shows moderate copper mineralization over an excellent width, despite being affected by dyking, indicating a substantial mineralized zone.

Positive factors

  • Moderate copper grade (0.49%)
  • Excellent intercept length (58m)

Negative factors

  • Mineralization affected by dyking

Evidence · table

“0.49”

Context: 58

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-04Pampa Medina West · copperGrade: 1Grade Unit: %Intercept: 16 mView all details
Link to this fact

Identity

Hole ID
SWRD-04
Project
Pampa Medina West
Commodity
copper
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
1
Grade Unit
%
Intercept
16 m
From
332 m
To
348 m
Hole Depth
898 m
Intercept Depth
322 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-04:332-348
Mining Method
open_pit

Location

Easting
405900.19
Northing
7440502.19
CRS
WGS84 UTM
Elevation
1293.18 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This intercept shows a strong copper grade over a good width, contributing to the overall mineralized zone.

Positive factors

  • Strong copper grade (1.00%)
  • Good intercept length (16m)

Evidence · table

“1.00”

Context: 16

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-04Pampa Medina West · silverGrade: 5.9Grade Unit: g/tIntercept: 16 mView all details
Link to this fact

Identity

Hole ID
SWRD-04
Project
Pampa Medina West
Commodity
silver
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
5.9
Grade Unit
g/t
Intercept
16 m
From
332 m
To
348 m
Hole Depth
898 m
Intercept Depth
322 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-04:332-348
Mining Method
open_pit

Location

Easting
405900.19
Northing
7440502.19
CRS
WGS84 UTM
Elevation
1293.18 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: The silver grade is very low, providing minimal by-product credit.

Positive factors

  • Silver by-product credit

Negative factors

  • Very low silver grade (5.9 gpt)

Evidence · table

“5.9”

Context: 16

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-04Pampa Medina West · copperGrade: 2.51Grade Unit: %Intercept: 4 mView all details
Link to this fact

Identity

Hole ID
SWRD-04
Project
Pampa Medina West
Commodity
copper
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
2.51
Grade Unit
%
Intercept
4 m
From
338 m
To
342 m
Hole Depth
898 m
Intercept Depth
322 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-04:338-342
Mining Method
open_pit

Location

Easting
405900.19
Northing
7440502.19
CRS
WGS84 UTM
Elevation
1293.18 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This exceptional copper grade over a narrow width significantly enhances the overall quality of the broader intercept, indicating a very rich zone.

Positive factors

  • Exceptional copper grade (2.51%)
  • Enhances overall intercept

Evidence · table

“2.51”

Context: 4

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-04Pampa Medina West · silverGrade: 14.5Grade Unit: g/tIntercept: 4 mView all details
Link to this fact

Identity

Hole ID
SWRD-04
Project
Pampa Medina West
Commodity
silver
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
14.5
Grade Unit
g/t
Intercept
4 m
From
338 m
To
342 m
Hole Depth
898 m
Intercept Depth
322 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-04:338-342
Mining Method
open_pit

Location

Easting
405900.19
Northing
7440502.19
CRS
WGS84 UTM
Elevation
1293.18 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: The silver grade is low but provides a by-product credit alongside the primary copper mineralization.

Positive factors

  • Silver by-product credit

Negative factors

  • Low silver grade (14.5 gpt)

Evidence · table

“14.5”

Context: 4

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-04Pampa Medina West · copperGrade: 1.17Grade Unit: %Intercept: 8 mView all details
Link to this fact

Identity

Hole ID
SWRD-04
Project
Pampa Medina West
Commodity
copper
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
1.17
Grade Unit
%
Intercept
8 m
From
368 m
To
376 m
Hole Depth
898 m
Intercept Depth
322 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-04:368-376
Mining Method
open_pit

Location

Easting
405900.19
Northing
7440502.19
CRS
WGS84 UTM
Elevation
1293.18 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This intercept shows a strong copper grade over a narrow width, contributing to the overall mineralized zone.

Positive factors

  • Strong copper grade (1.17%)
  • Contributes to overall intercept

Evidence · table

“1.17”

Context: 8

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-04Pampa Medina West · silverGrade: 5Grade Unit: g/tIntercept: 8 mView all details
Link to this fact

Identity

Hole ID
SWRD-04
Project
Pampa Medina West
Commodity
silver
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
5
Grade Unit
g/t
Intercept
8 m
From
368 m
To
376 m
Hole Depth
898 m
Intercept Depth
322 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-04:368-376
Mining Method
open_pit

Location

Easting
405900.19
Northing
7440502.19
CRS
WGS84 UTM
Elevation
1293.18 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: The silver grade is very low, providing minimal by-product credit.

Positive factors

  • Silver by-product credit

Negative factors

  • Very low silver grade (5.0 gpt)

Evidence · table

“5.0”

Context: 8

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-04Pampa Medina West · copperGrade: 0.71Grade Unit: %Intercept: 10 mView all details
Link to this fact

Identity

Hole ID
SWRD-04
Project
Pampa Medina West
Commodity
copper
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
0.71
Grade Unit
%
Intercept
10 m
From
660 m
To
670 m
Hole Depth
898 m
Intercept Depth
322 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-04:660-670
Mining Method
open_pit

Location

Easting
405900.19
Northing
7440502.19
CRS
WGS84 UTM
Elevation
1293.18 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This intercept shows moderate copper mineralization over a good width, despite being affected by intrusions, indicating continued presence of mineralization.

Positive factors

  • Moderate copper grade (0.71%)
  • Good intercept length (10m)

Negative factors

  • Mineralization affected by intrusions

Evidence · table

“0.71”

Context: 10

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-04Pampa Medina West · silverGrade: 6.4Grade Unit: g/tIntercept: 10 mView all details
Link to this fact

Identity

Hole ID
SWRD-04
Project
Pampa Medina West
Commodity
silver
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
6.4
Grade Unit
g/t
Intercept
10 m
From
660 m
To
670 m
Hole Depth
898 m
Intercept Depth
322 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-04:660-670
Mining Method
open_pit

Location

Easting
405900.19
Northing
7440502.19
CRS
WGS84 UTM
Elevation
1293.18 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: The silver grade is very low, providing minimal by-product credit.

Positive factors

  • Silver by-product credit

Negative factors

  • Very low silver grade (6.4 gpt)

Evidence · table

“6.4”

Context: 10

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-04Pampa Medina West · copperGrade: 1.06Grade Unit: %Intercept: 4 mView all details
Link to this fact

Identity

Hole ID
SWRD-04
Project
Pampa Medina West
Commodity
copper
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
1.06
Grade Unit
%
Intercept
4 m
From
706 m
To
710 m
Hole Depth
898 m
Intercept Depth
322 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-04:706-710
Mining Method
open_pit

Location

Easting
405900.19
Northing
7440502.19
CRS
WGS84 UTM
Elevation
1293.18 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This intercept shows a strong copper grade over a narrow width, despite being affected by intrusions, indicating continued presence of mineralization.

Positive factors

  • Strong copper grade (1.06%)

Negative factors

  • Mineralization affected by intrusions

Evidence · table

“1.06”

Context: 4

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-04Pampa Medina West · silverGrade: 8.5Grade Unit: g/tIntercept: 4 mView all details
Link to this fact

Identity

Hole ID
SWRD-04
Project
Pampa Medina West
Commodity
silver
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
8.5
Grade Unit
g/t
Intercept
4 m
From
706 m
To
710 m
Hole Depth
898 m
Intercept Depth
322 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-04:706-710
Mining Method
open_pit

Location

Easting
405900.19
Northing
7440502.19
CRS
WGS84 UTM
Elevation
1293.18 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: The silver grade is low, providing minimal by-product credit.

Positive factors

  • Silver by-product credit

Negative factors

  • Low silver grade (8.5 gpt)

Evidence · table

“8.5”

Context: 4

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-04Pampa Medina West · copperGrade: 1.08Grade Unit: %Intercept: 4 mView all details
Link to this fact

Identity

Hole ID
SWRD-04
Project
Pampa Medina West
Commodity
copper
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
1.08
Grade Unit
%
Intercept
4 m
From
820 m
To
824 m
Hole Depth
898 m
Intercept Depth
322 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-04:820-824
Mining Method
open_pit

Location

Easting
405900.19
Northing
7440502.19
CRS
WGS84 UTM
Elevation
1293.18 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This intercept shows a strong copper grade over a narrow width, despite being affected by intrusions, indicating continued presence of mineralization.

Positive factors

  • Strong copper grade (1.08%)

Negative factors

  • Mineralization affected by intrusions

Evidence · table

“1.08”

Context: 4

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-04Pampa Medina West · silverGrade: 17Grade Unit: g/tIntercept: 4 mView all details
Link to this fact

Identity

Hole ID
SWRD-04
Project
Pampa Medina West
Commodity
silver
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
17
Grade Unit
g/t
Intercept
4 m
From
820 m
To
824 m
Hole Depth
898 m
Intercept Depth
322 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-04:820-824
Mining Method
open_pit

Location

Easting
405900.19
Northing
7440502.19
CRS
WGS84 UTM
Elevation
1293.18 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: The silver grade is low, providing minimal by-product credit.

Positive factors

  • Silver by-product credit

Negative factors

  • Low silver grade (17.0 gpt)

Evidence · table

“17.0”

Context: 4

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-04Pampa Medina West · copperGrade: 0.85Grade Unit: %Intercept: 6 mView all details
Link to this fact

Identity

Hole ID
SWRD-04
Project
Pampa Medina West
Commodity
copper
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
0.85
Grade Unit
%
Intercept
6 m
From
836 m
To
842 m
Hole Depth
898 m
Intercept Depth
322 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-04:836-842
Mining Method
open_pit

Location

Easting
405900.19
Northing
7440502.19
CRS
WGS84 UTM
Elevation
1293.18 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This intercept shows moderate copper mineralization over a narrow width, despite being affected by intrusions, indicating continued presence of mineralization.

Positive factors

  • Moderate copper grade (0.85%)

Negative factors

  • Mineralization affected by intrusions

Evidence · table

“0.85”

Context: 6

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SWRD-04Pampa Medina West · silverGrade: 9.7Grade Unit: g/tIntercept: 6 mView all details
Link to this fact

Identity

Hole ID
SWRD-04
Project
Pampa Medina West
Commodity
silver
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
9.7
Grade Unit
g/t
Intercept
6 m
From
836 m
To
842 m
Hole Depth
898 m
Intercept Depth
322 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SWRD-04:836-842
Mining Method
open_pit

Location

Easting
405900.19
Northing
7440502.19
CRS
WGS84 UTM
Elevation
1293.18 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: The silver grade is low, providing minimal by-product credit.

Positive factors

  • Silver by-product credit

Negative factors

  • Low silver grade (9.7 gpt)

Evidence · table

“9.7”

Context: 6

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SMRD-34Pampa Medina West · copperGrade: 0.9Grade Unit: %Intercept: 46 mView all details
Link to this fact

Identity

Hole ID
SMRD-34
Project
Pampa Medina West
Commodity
copper
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
0.9
Grade Unit
%
Intercept
46 m
From
148 m
To
194 m
Hole Depth
950 m
Intercept Depth
148 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SMRD-34:148-194
Mining Method
open_pit

Location

Easting
406399.17
Northing
7440496.46
CRS
WGS84 UTM
Elevation
1282.63 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This intercept shows moderate copper mineralization over an excellent width, providing infill data between significant step-out holes.

Positive factors

  • Moderate copper grade (0.90%)
  • Excellent intercept length (46m)
  • Drilled on 300m spacing between previous holes

Evidence · table

“0.90”

Context: 46

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SMRD-34Pampa Medina West · silverGrade: 10.8Grade Unit: g/tIntercept: 46 mView all details
Link to this fact

Identity

Hole ID
SMRD-34
Project
Pampa Medina West
Commodity
silver
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
10.8
Grade Unit
g/t
Intercept
46 m
From
148 m
To
194 m
Hole Depth
950 m
Intercept Depth
148 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SMRD-34:148-194
Mining Method
open_pit

Location

Easting
406399.17
Northing
7440496.46
CRS
WGS84 UTM
Elevation
1282.63 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: The silver grade is low but provides a by-product credit alongside the primary copper mineralization.

Positive factors

  • Silver by-product credit

Negative factors

  • Low silver grade (10.8 gpt)

Evidence · table

“10.8”

Context: 46

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SMRD-34Pampa Medina West · copperGrade: 1.08Grade Unit: %Intercept: 36 mView all details
Link to this fact

Identity

Hole ID
SMRD-34
Project
Pampa Medina West
Commodity
copper
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
1.08
Grade Unit
%
Intercept
36 m
From
158 m
To
194 m
Hole Depth
950 m
Intercept Depth
148 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SMRD-34:158-194
Mining Method
open_pit

Location

Easting
406399.17
Northing
7440496.46
CRS
WGS84 UTM
Elevation
1282.63 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This strong copper grade over a good width enhances the overall quality of the broader intercept, indicating a richer zone.

Positive factors

  • Strong copper grade (1.08%)
  • Good intercept length (36m)
  • Enhances overall intercept

Evidence · table

“1.08”

Context: 36

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SMRD-34Pampa Medina West · silverGrade: 13.8Grade Unit: g/tIntercept: 36 mView all details
Link to this fact

Identity

Hole ID
SMRD-34
Project
Pampa Medina West
Commodity
silver
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
13.8
Grade Unit
g/t
Intercept
36 m
From
158 m
To
194 m
Hole Depth
950 m
Intercept Depth
148 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SMRD-34:158-194
Mining Method
open_pit

Location

Easting
406399.17
Northing
7440496.46
CRS
WGS84 UTM
Elevation
1282.63 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: The silver grade is low but provides a by-product credit alongside the primary copper mineralization.

Positive factors

  • Silver by-product credit

Negative factors

  • Low silver grade (13.8 gpt)

Evidence · table

“13.8”

Context: 36

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SMRD-34Pampa Medina West · copperGrade: 3.01Grade Unit: %Intercept: 6 mView all details
Link to this fact

Identity

Hole ID
SMRD-34
Project
Pampa Medina West
Commodity
copper
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
3.01
Grade Unit
%
Intercept
6 m
From
166 m
To
172 m
Hole Depth
950 m
Intercept Depth
148 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SMRD-34:166-172
Mining Method
open_pit

Location

Easting
406399.17
Northing
7440496.46
CRS
WGS84 UTM
Elevation
1282.63 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This exceptional copper grade over a narrow width significantly enhances the overall quality of the broader intercept, indicating a very rich zone.

Positive factors

  • Exceptional copper grade (3.01%)
  • Enhances overall intercept

Evidence · table

“3.01”

Context: 6

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SMRD-34Pampa Medina West · silverGrade: 37.3Grade Unit: g/tIntercept: 6 mView all details
Link to this fact

Identity

Hole ID
SMRD-34
Project
Pampa Medina West
Commodity
silver
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
37.3
Grade Unit
g/t
Intercept
6 m
From
166 m
To
172 m
Hole Depth
950 m
Intercept Depth
148 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SMRD-34:166-172
Mining Method
open_pit

Location

Easting
406399.17
Northing
7440496.46
CRS
WGS84 UTM
Elevation
1282.63 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This moderate silver grade provides a good by-product credit alongside the exceptional copper mineralization.

Positive factors

  • Moderate silver grade (37.3 gpt)
  • Silver by-product credit

Evidence · table

“37.3”

Context: 6

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SMRD-34Pampa Medina West · copperGrade: 0.57Grade Unit: %Intercept: 110 mView all details
Link to this fact

Identity

Hole ID
SMRD-34
Project
Pampa Medina West
Commodity
copper
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
0.57
Grade Unit
%
Intercept
110 m
From
600 m
To
710 m
Hole Depth
950 m
Intercept Depth
148 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SMRD-34:600-710
Mining Method
open_pit

Location

Easting
406399.17
Northing
7440496.46
CRS
WGS84 UTM
Elevation
1282.63 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This intercept shows moderate copper mineralization over an exceptional width, providing significant infill data between step-out holes and indicating a very large mineralized zone.

Positive factors

  • Moderate copper grade (0.57%)
  • Exceptional intercept length (110m)
  • Drilled on 300m spacing between previous holes

Evidence · table

“0.57”

Context: 110

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SMRD-34Pampa Medina West · silverGrade: 3.9Grade Unit: g/tIntercept: 110 mView all details
Link to this fact

Identity

Hole ID
SMRD-34
Project
Pampa Medina West
Commodity
silver
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
3.9
Grade Unit
g/t
Intercept
110 m
From
600 m
To
710 m
Hole Depth
950 m
Intercept Depth
148 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SMRD-34:600-710
Mining Method
open_pit

Location

Easting
406399.17
Northing
7440496.46
CRS
WGS84 UTM
Elevation
1282.63 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: The silver grade is very low, providing minimal by-product credit.

Positive factors

  • Silver by-product credit

Negative factors

  • Very low silver grade (3.9 gpt)

Evidence · table

“3.9”

Context: 110

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SMRD-34Pampa Medina West · copperGrade: 1.37Grade Unit: %Intercept: 24 mView all details
Link to this fact

Identity

Hole ID
SMRD-34
Project
Pampa Medina West
Commodity
copper
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
1.37
Grade Unit
%
Intercept
24 m
From
600 m
To
624 m
Hole Depth
950 m
Intercept Depth
148 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SMRD-34:600-624
Mining Method
open_pit

Location

Easting
406399.17
Northing
7440496.46
CRS
WGS84 UTM
Elevation
1282.63 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This strong copper grade over a good width significantly enhances the overall quality of the broader intercept, indicating a richer zone within the mineralization.

Positive factors

  • Strong copper grade (1.37%)
  • Good intercept length (24m)
  • Enhances overall exceptional intercept

Evidence · table

“1.37”

Context: 24

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SMRD-34Pampa Medina West · silverGrade: 12.2Grade Unit: g/tIntercept: 24 mView all details
Link to this fact

Identity

Hole ID
SMRD-34
Project
Pampa Medina West
Commodity
silver
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
12.2
Grade Unit
g/t
Intercept
24 m
From
600 m
To
624 m
Hole Depth
950 m
Intercept Depth
148 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SMRD-34:600-624
Mining Method
open_pit

Location

Easting
406399.17
Northing
7440496.46
CRS
WGS84 UTM
Elevation
1282.63 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: The silver grade is low but provides a by-product credit alongside the primary copper mineralization.

Positive factors

  • Silver by-product credit

Negative factors

  • Low silver grade (12.2 gpt)

Evidence · table

“12.2”

Context: 24

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SMRD-34Pampa Medina West · copperGrade: 2.58Grade Unit: %Intercept: 10 mView all details
Link to this fact

Identity

Hole ID
SMRD-34
Project
Pampa Medina West
Commodity
copper
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
2.58
Grade Unit
%
Intercept
10 m
From
606 m
To
616 m
Hole Depth
950 m
Intercept Depth
148 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SMRD-34:606-616
Mining Method
open_pit

Location

Easting
406399.17
Northing
7440496.46
CRS
WGS84 UTM
Elevation
1282.63 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This exceptional copper grade over a good width significantly enhances the overall quality of the broader intercept, indicating a very rich zone within the mineralization.

Positive factors

  • Exceptional copper grade (2.58%)
  • Good intercept length (10m)
  • Enhances overall exceptional intercept

Evidence · table

“2.58”

Context: 10

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SMRD-34Pampa Medina West · silverGrade: 25.8Grade Unit: g/tIntercept: 10 mView all details
Link to this fact

Identity

Hole ID
SMRD-34
Project
Pampa Medina West
Commodity
silver
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
25.8
Grade Unit
g/t
Intercept
10 m
From
606 m
To
616 m
Hole Depth
950 m
Intercept Depth
148 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SMRD-34:606-616
Mining Method
open_pit

Location

Easting
406399.17
Northing
7440496.46
CRS
WGS84 UTM
Elevation
1282.63 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: The silver grade is weak but provides a by-product credit alongside the exceptional copper mineralization.

Positive factors

  • Silver by-product credit

Negative factors

  • Weak silver grade (25.8 gpt)

Evidence · table

“25.8”

Context: 10

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SMRD-34Pampa Medina West · copperGrade: 0.92Grade Unit: %Intercept: 10 mView all details
Link to this fact

Identity

Hole ID
SMRD-34
Project
Pampa Medina West
Commodity
copper
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
0.92
Grade Unit
%
Intercept
10 m
From
684 m
To
694 m
Hole Depth
950 m
Intercept Depth
148 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SMRD-34:684-694
Mining Method
open_pit

Location

Easting
406399.17
Northing
7440496.46
CRS
WGS84 UTM
Elevation
1282.63 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: This intercept shows moderate copper mineralization over a good width, contributing to the overall exceptional intercept.

Positive factors

  • Moderate copper grade (0.92%)
  • Good intercept length (10m)

Evidence · table

“0.92”

Context: 10

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

SMRD-34Pampa Medina West · silverGrade: 5.8Grade Unit: g/tIntercept: 10 mView all details
Link to this fact

Identity

Hole ID
SMRD-34
Project
Pampa Medina West
Commodity
silver
Region
chile
Reported Region
chile
Ticker
MARI

Geometry

Grade
5.8
Grade Unit
g/t
Intercept
10 m
From
684 m
To
694 m
Hole Depth
950 m
Intercept Depth
148 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
SMRD-34:684-694
Mining Method
open_pit

Location

Easting
406399.17
Northing
7440496.46
CRS
WGS84 UTM
Elevation
1282.63 m
Azimuth
270 °
Dip
-55 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Andes Analytical Assay
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-11T00:00:00.000Z

Reasoning: The silver grade is very low, providing minimal by-product credit.

Positive factors

  • Silver by-product credit

Negative factors

  • Very low silver grade (5.8 gpt)

Evidence · table

“5.8”

Context: 10

Tags used in scoring

QA/QC Disclosedpositive

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

Why it applies: qaqc_disclosed is 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

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.