Ero Copper Intercepts 115 Meters at 0.98% CuEq¹ in Deepest Hole Drilled to Date at Furnas Copper-Gold Project - Phase 2 Drill Program to be Completed in Early Q4 2025

Original announcement by tmx on

Company
Ero Copper Corp.
Ticker
ERO
Exchange
TSX
Region
Pará State, Brazil
Primary commodity
Copper
Secondary commodities
Gold
Document categories
Drill results, Resource update, Agreement transaction
Extracted
2026-08-21 10:51:21 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Ero Copper announced strong assay results from its Phase 1 drill program at the Furnas Copper-Gold Project in Brazil, highlighted by significant down-dip extensions of high-grade mineralization. The deepest hole, FURN-DD-00322, intercepted 115 meters at 0.98% CuEq, extending mineralization to 950 meters down-dip from surface. These results confirm high-grade continuity and will form the basis for an updated NI 43-101 compliant mineral resource estimate and a preliminary economic assessment.

Reasoning: Ero Copper's Phase 1 drill program at Furnas delivered strong results, significantly extending high-grade copper-gold mineralization to depth and demonstrating continuity. The intercepts are substantial in both length and grade, supporting future resource updates and de-risking the project. The detailed QA/QC and NI 43-101 compliance add high confidence to the reported figures.

Positive factors

  • Significant down-dip extension of high-grade mineralization to 950m, well beyond previous limits.
  • Multiple long, high-grade intercepts, including 115m at 0.98% CuEq and 103m at 1.26% CuEq.
  • Results demonstrate continuity within high-grade zones and support future resource conversion.
  • NI 43-101 compliant reporting with detailed QA/QC procedures and QP sign-off.
  • Phase 2 drill program is ahead of schedule, indicating efficient project advancement.

Facts used in scoring: 202

Atlas analysis — Ero Copper Corp.: Ero Copper Intercepts 115 Meters at 0.98% CuEq¹ in Deepest Hole Drilled to Date at Furnas Copper-Gold Project - Phase 2 Drill Program to be Completed in Early Q4 2025. 0.82 % CuEq over 111 m; 0.95 % CuEq over 93 m; 0.62 % CuEq over 97 m

Extracted facts

Stored fact records: 202. Some facts used in scoring do not have a stored record.

Drill Results (202)

FURN-DD-00280Furnas Copper-Gold Project · copperGrade: 0.98Grade Unit: % CuEqIntercept: 65 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
FURN-DD-00280
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.98
Grade Unit
% CuEq
Intercept
65 m
From
458 m
To
523 m
Hole Depth
589.8 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00280:458.0-523.0
Mining Method
mixed

Location

Easting
611953
Northing
9346660
CRS
unknown
Elevation
349 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
0.98
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 65m intercept at 0.98% CuEq is a strong result for an IOCG deposit, contributing to the overall positive sentiment of the drill program.

Positive factors

  • Strong copper equivalent grade for IOCG deposit type.
  • Significant intercept length.
  • High grade-thickness product (51.2 %Cu·m).

Evidence · table

“0.98”

Context: 65

FURN-DD-00280Furnas Copper-Gold Project · goldGrade: 0.4Grade Unit: g/tIntercept: 65 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00280
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.4
Grade Unit
g/t
Intercept
65 m
From
458 m
To
523 m
Hole Depth
589.8 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00280:458.0-523.0
Mining Method
mixed

Location

Easting
611953
Northing
9346660
CRS
unknown
Elevation
349 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
0.98
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 65m intercept at 0.40 g/t Au is a moderate result for an IOCG deposit, contributing to the overall positive sentiment of the drill program.

Positive factors

  • Moderate gold grade for IOCG deposit type.
  • Significant intercept length.

Evidence · table

“0.40”

Context: 65

FURN-DD-00280Furnas Copper-Gold Project · copperGrade: 1.11Grade Unit: % CuEqIntercept: 32 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
FURN-DD-00280
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.11
Grade Unit
% CuEq
Intercept
32 m
From
491 m
To
523 m
Hole Depth
589.8 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00280:491.0-523.0
Mining Method
mixed

Location

Easting
611953
Northing
9346660
CRS
unknown
Elevation
349 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.11
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 32m sub-interval at 1.11% CuEq is an exceptional result, indicating higher-grade zones within the broader intercept.

Positive factors

  • Exceptional copper equivalent grade for IOCG deposit type.
  • Good intercept length for a sub-interval.
  • High grade-thickness product (27.2 %Cu·m).

Evidence · table

“1.11”

Context: 32

FURN-DD-00280Furnas Copper-Gold Project · goldGrade: 0.54Grade Unit: g/tIntercept: 32 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00280
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.54
Grade Unit
g/t
Intercept
32 m
From
491 m
To
523 m
Hole Depth
589.8 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00280:491.0-523.0
Mining Method
mixed

Location

Easting
611953
Northing
9346660
CRS
unknown
Elevation
349 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.11
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 32m sub-interval at 0.54 g/t Au is a strong result, indicating higher-grade zones within the broader intercept.

Positive factors

  • Strong gold grade for IOCG deposit type.
  • Good intercept length for a sub-interval.

Evidence · table

“0.54”

Context: 32

FURN-DD-00281Furnas Copper-Gold Project · copperGrade: 0.82Grade Unit: % CuEqIntercept: 111 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00281
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.82
Grade Unit
% CuEq
Intercept
111 m
From
488 m
To
599 m
Hole Depth
704.6 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00281:488.0-599.0
Mining Method
mixed

Location

Easting
612087
Northing
9346657
CRS
unknown
Elevation
348 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
0.82
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 111m intercept at 0.82% CuEq is a strong result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Strong copper equivalent grade for IOCG deposit type.
  • Very long intercept length.
  • High grade-thickness product (70.0 %Cu·m).

Evidence · table

“0.82”

Context: 111

FURN-DD-00281Furnas Copper-Gold Project · goldGrade: 0.4Grade Unit: g/tIntercept: 111 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00281
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.4
Grade Unit
g/t
Intercept
111 m
From
488 m
To
599 m
Hole Depth
704.6 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00281:488.0-599.0
Mining Method
mixed

Location

Easting
612087
Northing
9346657
CRS
unknown
Elevation
348 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
0.82
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 111m intercept at 0.40 g/t Au is a moderate result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Moderate gold grade for IOCG deposit type.
  • Very long intercept length.

Evidence · table

“0.40”

Context: 111

FURN-DD-00281Furnas Copper-Gold Project · copperGrade: 1.11Grade Unit: % CuEqIntercept: 20 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
FURN-DD-00281
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.11
Grade Unit
% CuEq
Intercept
20 m
From
519 m
To
539 m
Hole Depth
704.6 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00281:519.0-539.0
Mining Method
mixed

Location

Easting
612087
Northing
9346657
CRS
unknown
Elevation
348 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.11
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 20m sub-interval at 1.11% CuEq is an exceptional result, indicating higher-grade zones within the broader intercept.

Positive factors

  • Exceptional copper equivalent grade for IOCG deposit type.
  • Good intercept length for a sub-interval.
  • High grade-thickness product (16.2 %Cu·m).

Evidence · table

“1.11”

Context: 20

FURN-DD-00281Furnas Copper-Gold Project · goldGrade: 0.62Grade Unit: g/tIntercept: 20 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00281
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.62
Grade Unit
g/t
Intercept
20 m
From
519 m
To
539 m
Hole Depth
704.6 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00281:519.0-539.0
Mining Method
mixed

Location

Easting
612087
Northing
9346657
CRS
unknown
Elevation
348 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.11
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 20m sub-interval at 0.62 g/t Au is a strong result, indicating higher-grade zones within the broader intercept.

Positive factors

  • Strong gold grade for IOCG deposit type.
  • Good intercept length for a sub-interval.

Evidence · table

“0.62”

Context: 20

FURN-DD-00283Furnas Copper-Gold Project · copperGrade: 0.95Grade Unit: % CuEqIntercept: 93 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00283
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.95
Grade Unit
% CuEq
Intercept
93 m
From
429 m
To
523 m
Hole Depth
570.3 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00283:429.0-523.0
Mining Method
mixed

Location

Easting
612253
Northing
9346433
CRS
unknown
Elevation
320 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
0.95
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 93m intercept at 0.95% CuEq is an exceptional result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Exceptional copper equivalent grade for IOCG deposit type.
  • Very long intercept length.
  • High grade-thickness product (74.7 %Cu·m).

Evidence · table

“0.95”

Context: 93

FURN-DD-00283Furnas Copper-Gold Project · goldGrade: 0.32Grade Unit: g/tIntercept: 93 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00283
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.32
Grade Unit
g/t
Intercept
93 m
From
429 m
To
523 m
Hole Depth
570.3 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00283:429.0-523.0
Mining Method
mixed

Location

Easting
612253
Northing
9346433
CRS
unknown
Elevation
320 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
0.95
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 93m intercept at 0.32 g/t Au is a moderate result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Moderate gold grade for IOCG deposit type.
  • Very long intercept length.

Evidence · table

“0.32”

Context: 93

FURN-DD-00283Furnas Copper-Gold Project · copperGrade: 1.73Grade Unit: % CuEqIntercept: 18 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00283
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.73
Grade Unit
% CuEq
Intercept
18 m
From
429 m
To
447 m
Hole Depth
570.3 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00283:429.0-447.0
Mining Method
mixed

Location

Easting
612253
Northing
9346433
CRS
unknown
Elevation
320 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.73
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: An 18m sub-interval at 1.73% CuEq is an exceptional result, indicating very high-grade zones within the broader intercept.

Positive factors

  • Exceptional copper equivalent grade for IOCG deposit type.
  • Good intercept length for a sub-interval.
  • High grade-thickness product (26.7 %Cu·m).

Evidence · table

“1.73”

Context: 18

FURN-DD-00283Furnas Copper-Gold Project · goldGrade: 0.46Grade Unit: g/tIntercept: 18 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00283
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.46
Grade Unit
g/t
Intercept
18 m
From
429 m
To
447 m
Hole Depth
570.3 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00283:429.0-447.0
Mining Method
mixed

Location

Easting
612253
Northing
9346433
CRS
unknown
Elevation
320 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.73
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: An 18m sub-interval at 0.46 g/t Au is a moderate result, indicating higher-grade zones within the broader intercept.

Positive factors

  • Moderate gold grade for IOCG deposit type.
  • Good intercept length for a sub-interval.

Evidence · table

“0.46”

Context: 18

FURN-DD-00283Furnas Copper-Gold Project · copperGrade: 1.67Grade Unit: % CuEqIntercept: 23 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00283
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.67
Grade Unit
% CuEq
Intercept
23 m
From
489 m
To
512 m
Hole Depth
570.3 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00283:489.0-512.0
Mining Method
mixed

Location

Easting
612253
Northing
9346433
CRS
unknown
Elevation
320 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.67
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 23m sub-interval at 1.67% CuEq is an exceptional result, indicating very high-grade zones within the broader intercept.

Positive factors

  • Exceptional copper equivalent grade for IOCG deposit type.
  • Good intercept length for a sub-interval.
  • High grade-thickness product (30.5 %Cu·m).

Evidence · table

“1.67”

Context: 23

FURN-DD-00283Furnas Copper-Gold Project · goldGrade: 0.71Grade Unit: g/tIntercept: 23 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
FURN-DD-00283
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.71
Grade Unit
g/t
Intercept
23 m
From
489 m
To
512 m
Hole Depth
570.3 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00283:489.0-512.0
Mining Method
mixed

Location

Easting
612253
Northing
9346433
CRS
unknown
Elevation
320 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.67
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 23m sub-interval at 0.71 g/t Au is a strong result, indicating higher-grade zones within the broader intercept.

Positive factors

  • Strong gold grade for IOCG deposit type.
  • Good intercept length for a sub-interval.

Evidence · table

“0.71”

Context: 23

FURN-DD-00291Furnas Copper-Gold Project · copperGrade: 0.62Grade Unit: % CuEqIntercept: 97 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00291
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.62
Grade Unit
% CuEq
Intercept
97 m
From
174 m
To
271 m
Hole Depth
338.2 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00291:174.0-271.0
Mining Method
mixed

Location

Easting
611445
Northing
9346438
CRS
unknown
Elevation
458 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
0.62
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 97m intercept at 0.62% CuEq is a strong result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Strong copper equivalent grade for IOCG deposit type.
  • Very long intercept length.
  • High grade-thickness product (48.7 %Cu·m).

Evidence · table

“0.62”

Context: 97

FURN-DD-00291Furnas Copper-Gold Project · goldGrade: 0.25Grade Unit: g/tIntercept: 97 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00291
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.25
Grade Unit
g/t
Intercept
97 m
From
174 m
To
271 m
Hole Depth
338.2 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00291:174.0-271.0
Mining Method
mixed

Location

Easting
611445
Northing
9346438
CRS
unknown
Elevation
458 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
0.62
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 97m intercept at 0.25 g/t Au is a weak result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Weak gold grade for IOCG deposit type.
  • Very long intercept length.

Evidence · table

“0.25”

Context: 97

FURN-DD-00291Furnas Copper-Gold Project · copperGrade: 1.1Grade Unit: % CuEqIntercept: 17 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00291
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.1
Grade Unit
% CuEq
Intercept
17 m
From
174 m
To
190 m
Hole Depth
338.2 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00291:174.0-190.0
Mining Method
mixed

Location

Easting
611445
Northing
9346438
CRS
unknown
Elevation
458 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.1
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 17m sub-interval at 1.10% CuEq is an exceptional result, indicating higher-grade zones within the broader intercept.

Positive factors

  • Exceptional copper equivalent grade for IOCG deposit type.
  • Good intercept length for a sub-interval.
  • High grade-thickness product (15.4 %Cu·m).

Evidence · table

“1.10”

Context: 17

FURN-DD-00291Furnas Copper-Gold Project · goldGrade: 0.35Grade Unit: g/tIntercept: 17 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00291
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.35
Grade Unit
g/t
Intercept
17 m
From
174 m
To
190 m
Hole Depth
338.2 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00291:174.0-190.0
Mining Method
mixed

Location

Easting
611445
Northing
9346438
CRS
unknown
Elevation
458 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.1
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 17m sub-interval at 0.35 g/t Au is a moderate result, indicating higher-grade zones within the broader intercept.

Positive factors

  • Moderate gold grade for IOCG deposit type.
  • Good intercept length for a sub-interval.

Evidence · table

“0.35”

Context: 17

FURN-DD-00291Furnas Copper-Gold Project · copperGrade: 0.94Grade Unit: % CuEqIntercept: 19 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00291
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.94
Grade Unit
% CuEq
Intercept
19 m
From
252 m
To
271 m
Hole Depth
338.2 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00291:252.0-271.0
Mining Method
mixed

Location

Easting
611445
Northing
9346438
CRS
unknown
Elevation
458 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
0.94
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 19m sub-interval at 0.94% CuEq is an exceptional result, indicating higher-grade zones within the broader intercept.

Positive factors

  • Exceptional copper equivalent grade for IOCG deposit type.
  • Good intercept length for a sub-interval.
  • High grade-thickness product (14.4 %Cu·m).

Evidence · table

“0.94”

Context: 19

FURN-DD-00291Furnas Copper-Gold Project · goldGrade: 0.39Grade Unit: g/tIntercept: 19 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00291
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.39
Grade Unit
g/t
Intercept
19 m
From
252 m
To
271 m
Hole Depth
338.2 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00291:252.0-271.0
Mining Method
mixed

Location

Easting
611445
Northing
9346438
CRS
unknown
Elevation
458 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
0.94
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 19m sub-interval at 0.39 g/t Au is a moderate result, indicating higher-grade zones within the broader intercept.

Positive factors

  • Moderate gold grade for IOCG deposit type.
  • Good intercept length for a sub-interval.

Evidence · table

“0.39”

Context: 19

FURN-DD-00292Furnas Copper-Gold Project · copperGrade: 0.84Grade Unit: % CuEqIntercept: 52 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00292
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.84
Grade Unit
% CuEq
Intercept
52 m
From
196 m
To
248 m
Hole Depth
374.8 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00292:196.0-248.0
Mining Method
mixed

Location

Easting
611303
Northing
9346600
CRS
unknown
Elevation
413 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
0.84
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 52m intercept at 0.84% CuEq is a strong result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Strong copper equivalent grade for IOCG deposit type.
  • Good intercept length.
  • High grade-thickness product (29.7 %Cu·m).

Evidence · table

“0.84”

Context: 52

FURN-DD-00292Furnas Copper-Gold Project · goldGrade: 0.56Grade Unit: g/tIntercept: 52 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
FURN-DD-00292
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.56
Grade Unit
g/t
Intercept
52 m
From
196 m
To
248 m
Hole Depth
374.8 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00292:196.0-248.0
Mining Method
mixed

Location

Easting
611303
Northing
9346600
CRS
unknown
Elevation
413 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
0.84
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 52m intercept at 0.56 g/t Au is a strong result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Strong gold grade for IOCG deposit type.
  • Good intercept length.

Evidence · table

“0.56”

Context: 52

FURN-DD-00292Furnas Copper-Gold Project · copperGrade: 0.91Grade Unit: % CuEqIntercept: 36 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
FURN-DD-00292
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.91
Grade Unit
% CuEq
Intercept
36 m
From
212 m
To
248 m
Hole Depth
374.8 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00292:212.0-248.0
Mining Method
mixed

Location

Easting
611303
Northing
9346600
CRS
unknown
Elevation
413 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
0.91
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 36m sub-interval at 0.91% CuEq is an exceptional result, indicating higher-grade zones within the broader intercept.

Positive factors

  • Exceptional copper equivalent grade for IOCG deposit type.
  • Good intercept length for a sub-interval.
  • High grade-thickness product (21.2 %Cu·m).

Evidence · table

“0.91”

Context: 36

FURN-DD-00292Furnas Copper-Gold Project · goldGrade: 0.68Grade Unit: g/tIntercept: 36 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00292
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.68
Grade Unit
g/t
Intercept
36 m
From
212 m
To
248 m
Hole Depth
374.8 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00292:212.0-248.0
Mining Method
mixed

Location

Easting
611303
Northing
9346600
CRS
unknown
Elevation
413 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
0.91
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 36m sub-interval at 0.68 g/t Au is a strong result, indicating higher-grade zones within the broader intercept.

Positive factors

  • Strong gold grade for IOCG deposit type.
  • Good intercept length for a sub-interval.

Evidence · table

“0.68”

Context: 36

FURN-DD-00292Furnas Copper-Gold Project · copperGrade: 1.08Grade Unit: % CuEqIntercept: 13 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00292
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.08
Grade Unit
% CuEq
Intercept
13 m
From
235 m
To
248 m
Hole Depth
374.8 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00292:235.0-248.0
Mining Method
mixed

Location

Easting
611303
Northing
9346600
CRS
unknown
Elevation
413 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.08
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 13m sub-interval at 1.08% CuEq is an exceptional result, indicating higher-grade zones within the broader intercept.

Positive factors

  • Exceptional copper equivalent grade for IOCG deposit type.
  • Moderate grade-thickness product (8.1 %Cu·m).

Evidence · table

“1.08”

Context: 13

FURN-DD-00292Furnas Copper-Gold Project · goldGrade: 0.95Grade Unit: g/tIntercept: 13 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00292
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.95
Grade Unit
g/t
Intercept
13 m
From
235 m
To
248 m
Hole Depth
374.8 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00292:235.0-248.0
Mining Method
mixed

Location

Easting
611303
Northing
9346600
CRS
unknown
Elevation
413 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.08
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 13m sub-interval at 0.95 g/t Au is a strong result, indicating higher-grade zones within the broader intercept.

Positive factors

  • Strong gold grade for IOCG deposit type.

Evidence · table

“0.95”

Context: 13

FURN-DD-00294Furnas Copper-Gold Project · copperGrade: 0.75Grade Unit: % CuEqIntercept: 83 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00294
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.75
Grade Unit
% CuEq
Intercept
83 m
From
556 m
To
639 m
Hole Depth
682.5 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00294:556.0-639.0
Mining Method
mixed

Location

Easting
612029
Northing
9346785
CRS
unknown
Elevation
312 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
0.75
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: An 83m intercept at 0.75% CuEq is a strong result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Strong copper equivalent grade for IOCG deposit type.
  • Very long intercept length.
  • High grade-thickness product (46.2 %Cu·m).

Evidence · table

“0.75”

Context: 83

FURN-DD-00294Furnas Copper-Gold Project · goldGrade: 0.39Grade Unit: g/tIntercept: 83 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00294
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.39
Grade Unit
g/t
Intercept
83 m
From
556 m
To
639 m
Hole Depth
682.5 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00294:556.0-639.0
Mining Method
mixed

Location

Easting
612029
Northing
9346785
CRS
unknown
Elevation
312 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
0.75
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: An 83m intercept at 0.39 g/t Au is a moderate result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Moderate gold grade for IOCG deposit type.
  • Very long intercept length.

Evidence · table

“0.39”

Context: 83

FURN-DD-00294Furnas Copper-Gold Project · copperGrade: 0.85Grade Unit: % CuEqIntercept: 47 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00294
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.85
Grade Unit
% CuEq
Intercept
47 m
From
570 m
To
617 m
Hole Depth
682.5 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00294:570.0-617.0
Mining Method
mixed

Location

Easting
612029
Northing
9346785
CRS
unknown
Elevation
312 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
0.85
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 47m sub-interval at 0.85% CuEq is a strong result, indicating higher-grade zones within the broader intercept.

Positive factors

  • Strong copper equivalent grade for IOCG deposit type.
  • Good intercept length for a sub-interval.
  • High grade-thickness product (29.3 %Cu·m).

Evidence · table

“0.85”

Context: 47

FURN-DD-00294Furnas Copper-Gold Project · goldGrade: 0.46Grade Unit: g/tIntercept: 47 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00294
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.46
Grade Unit
g/t
Intercept
47 m
From
570 m
To
617 m
Hole Depth
682.5 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00294:570.0-617.0
Mining Method
mixed

Location

Easting
612029
Northing
9346785
CRS
unknown
Elevation
312 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
0.85
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 47m sub-interval at 0.46 g/t Au is a moderate result, indicating higher-grade zones within the broader intercept.

Positive factors

  • Moderate gold grade for IOCG deposit type.
  • Good intercept length for a sub-interval.

Evidence · table

“0.46”

Context: 47

FURN-DD-00296Furnas Copper-Gold Project · copperGrade: 0.48Grade Unit: % CuEqIntercept: 81 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00296
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.48
Grade Unit
% CuEq
Intercept
81 m
From
119 m
To
200 m
Hole Depth
315.1 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00296:119.0-200.0
Mining Method
mixed

Location

Easting
611983
Northing
9346211
CRS
unknown
Elevation
427 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
0.48
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: An 81m intercept at 0.48% CuEq is a moderate result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Moderate copper equivalent grade for IOCG deposit type.
  • Very long intercept length.
  • High grade-thickness product (34.1 %Cu·m).

Evidence · table

“0.48”

Context: 81

FURN-DD-00296Furnas Copper-Gold Project · goldGrade: 0.13Grade Unit: g/tIntercept: 81 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00296
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.13
Grade Unit
g/t
Intercept
81 m
From
119 m
To
200 m
Hole Depth
315.1 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00296:119.0-200.0
Mining Method
mixed

Location

Easting
611983
Northing
9346211
CRS
unknown
Elevation
427 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
0.48
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: An 81m intercept at 0.13 g/t Au is a weak result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Weak gold grade for IOCG deposit type.
  • Very long intercept length.

Evidence · table

“0.13”

Context: 81

FURN-DD-00296Furnas Copper-Gold Project · copperGrade: 1Grade Unit: % CuEqIntercept: 18 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00296
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1
Grade Unit
% CuEq
Intercept
18 m
From
182 m
To
200 m
Hole Depth
315.1 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00296:182.0-200.0
Mining Method
mixed

Location

Easting
611983
Northing
9346211
CRS
unknown
Elevation
427 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: An 18m sub-interval at 1.00% CuEq is an exceptional result, indicating higher-grade zones within the broader intercept.

Positive factors

  • Exceptional copper equivalent grade for IOCG deposit type.
  • Good intercept length for a sub-interval.
  • High grade-thickness product (16.2 %Cu·m).

Evidence · table

“1.00”

Context: 18

FURN-DD-00296Furnas Copper-Gold Project · goldGrade: 0.23Grade Unit: g/tIntercept: 18 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00296
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.23
Grade Unit
g/t
Intercept
18 m
From
182 m
To
200 m
Hole Depth
315.1 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00296:182.0-200.0
Mining Method
mixed

Location

Easting
611983
Northing
9346211
CRS
unknown
Elevation
427 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: An 18m sub-interval at 0.23 g/t Au is a weak result, indicating higher-grade zones within the broader intercept.

Positive factors

  • Weak gold grade for IOCG deposit type.
  • Good intercept length for a sub-interval.

Evidence · table

“0.23”

Context: 18

FURN-DD-00297Furnas Copper-Gold Project · copperGrade: 1.22Grade Unit: % CuEqIntercept: 92 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00297
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.22
Grade Unit
% CuEq
Intercept
92 m
From
297 m
To
389 m
Hole Depth
481.8 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00297:297.0-389.0
Mining Method
mixed

Location

Easting
611992
Northing
9346337
CRS
unknown
Elevation
421 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.22
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 92m intercept at 1.22% CuEq is an exceptional result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Exceptional copper equivalent grade for IOCG deposit type.
  • Very long intercept length.
  • High grade-thickness product (83.9 %Cu·m).

Evidence · table

“1.22”

Context: 92

FURN-DD-00297Furnas Copper-Gold Project · goldGrade: 0.65Grade Unit: g/tIntercept: 92 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00297
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.65
Grade Unit
g/t
Intercept
92 m
From
297 m
To
389 m
Hole Depth
481.8 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00297:297.0-389.0
Mining Method
mixed

Location

Easting
611992
Northing
9346337
CRS
unknown
Elevation
421 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.22
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 92m intercept at 0.65 g/t Au is a strong result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Strong gold grade for IOCG deposit type.
  • Very long intercept length.

Evidence · table

“0.65”

Context: 92

FURN-DD-00297Furnas Copper-Gold Project · copperGrade: 1.18Grade Unit: % CuEqIntercept: 47 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00297
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.18
Grade Unit
% CuEq
Intercept
47 m
From
297 m
To
344 m
Hole Depth
481.8 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00297:297.0-344.0
Mining Method
mixed

Location

Easting
611992
Northing
9346337
CRS
unknown
Elevation
421 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.18
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 47m sub-interval at 1.18% CuEq is an exceptional result, indicating very high-grade zones within the broader intercept.

Positive factors

  • Exceptional copper equivalent grade for IOCG deposit type.
  • Good intercept length for a sub-interval.
  • High grade-thickness product (49.0 %Cu·m).

Evidence · table

“1.18”

Context: 47

FURN-DD-00297Furnas Copper-Gold Project · goldGrade: 0.3Grade Unit: g/tIntercept: 47 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00297
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.3
Grade Unit
g/t
Intercept
47 m
From
297 m
To
344 m
Hole Depth
481.8 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00297:297.0-344.0
Mining Method
mixed

Location

Easting
611992
Northing
9346337
CRS
unknown
Elevation
421 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.18
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 47m sub-interval at 0.30 g/t Au is a moderate result, indicating higher-grade zones within the broader intercept.

Positive factors

  • Moderate gold grade for IOCG deposit type.
  • Good intercept length for a sub-interval.

Evidence · table

“0.30”

Context: 47

FURN-DD-00297Furnas Copper-Gold Project · copperGrade: 1.81Grade Unit: % CuEqIntercept: 30 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00297
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.81
Grade Unit
% CuEq
Intercept
30 m
From
359 m
To
389 m
Hole Depth
481.8 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00297:359.0-389.0
Mining Method
mixed

Location

Easting
611992
Northing
9346337
CRS
unknown
Elevation
421 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.81
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 30m sub-interval at 1.81% CuEq is an exceptional result, indicating very high-grade zones within the broader intercept.

Positive factors

  • Exceptional copper equivalent grade for IOCG deposit type.
  • Good intercept length for a sub-interval.
  • High grade-thickness product (33.1 %Cu·m).

Evidence · table

“1.81”

Context: 30

FURN-DD-00297Furnas Copper-Gold Project · goldGrade: 1.48Grade Unit: g/tIntercept: 30 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00297
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.48
Grade Unit
g/t
Intercept
30 m
From
359 m
To
389 m
Hole Depth
481.8 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00297:359.0-389.0
Mining Method
mixed

Location

Easting
611992
Northing
9346337
CRS
unknown
Elevation
421 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.81
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 30m sub-interval at 1.48 g/t Au is an exceptional result, indicating very high-grade zones within the broader intercept.

Positive factors

  • Exceptional gold grade for IOCG deposit type.
  • Good intercept length for a sub-interval.

Evidence · table

“1.48”

Context: 30

FURN-DD-00298Furnas Copper-Gold Project · copperGrade: 1.17Grade Unit: % CuEqIntercept: 94 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00298
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.17
Grade Unit
% CuEq
Intercept
94 m
From
329 m
To
423 m
Hole Depth
481.6 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00298:329.0-423.0
Mining Method
mixed

Location

Easting
611961
Northing
9346397
CRS
unknown
Elevation
415 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.17
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 94m intercept at 1.17% CuEq is an exceptional result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Exceptional copper equivalent grade for IOCG deposit type.
  • Very long intercept length.
  • High grade-thickness product (84.6 %Cu·m).

Evidence · table

“1.17”

Context: 94

FURN-DD-00298Furnas Copper-Gold Project · goldGrade: 0.57Grade Unit: g/tIntercept: 94 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00298
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.57
Grade Unit
g/t
Intercept
94 m
From
329 m
To
423 m
Hole Depth
481.6 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00298:329.0-423.0
Mining Method
mixed

Location

Easting
611961
Northing
9346397
CRS
unknown
Elevation
415 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.17
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 94m intercept at 0.57 g/t Au is a strong result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Strong gold grade for IOCG deposit type.
  • Very long intercept length.

Evidence · table

“0.57”

Context: 94

FURN-DD-00298Furnas Copper-Gold Project · copperGrade: 1.64Grade Unit: % CuEqIntercept: 26 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00298
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.64
Grade Unit
% CuEq
Intercept
26 m
From
353 m
To
379 m
Hole Depth
481.6 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00298:353.0-379.0
Mining Method
mixed

Location

Easting
611961
Northing
9346397
CRS
unknown
Elevation
415 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.64
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 26m sub-interval at 1.64% CuEq is an exceptional result, indicating very high-grade zones within the broader intercept.

Positive factors

  • Exceptional copper equivalent grade for IOCG deposit type.
  • Good intercept length for a sub-interval.
  • High grade-thickness product (34.8 %Cu·m).

Evidence · table

“1.64”

Context: 26

FURN-DD-00298Furnas Copper-Gold Project · goldGrade: 0.63Grade Unit: g/tIntercept: 26 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00298
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.63
Grade Unit
g/t
Intercept
26 m
From
353 m
To
379 m
Hole Depth
481.6 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00298:353.0-379.0
Mining Method
mixed

Location

Easting
611961
Northing
9346397
CRS
unknown
Elevation
415 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.64
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 26m sub-interval at 0.63 g/t Au is a strong result, indicating higher-grade zones within the broader intercept.

Positive factors

  • Strong gold grade for IOCG deposit type.
  • Good intercept length for a sub-interval.

Evidence · table

“0.63”

Context: 26

FURN-DD-00298Furnas Copper-Gold Project · copperGrade: 1.46Grade Unit: % CuEqIntercept: 22 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00298
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.46
Grade Unit
% CuEq
Intercept
22 m
From
399 m
To
421 m
Hole Depth
481.6 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00298:399.0-421.0
Mining Method
mixed

Location

Easting
611961
Northing
9346397
CRS
unknown
Elevation
415 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.46
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 22m sub-interval at 1.46% CuEq is an exceptional result, indicating very high-grade zones within the broader intercept.

Positive factors

  • Exceptional copper equivalent grade for IOCG deposit type.
  • Good intercept length for a sub-interval.
  • High grade-thickness product (21.8 %Cu·m).

Evidence · table

“1.46”

Context: 22

FURN-DD-00298Furnas Copper-Gold Project · goldGrade: 0.98Grade Unit: g/tIntercept: 22 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
FURN-DD-00298
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.98
Grade Unit
g/t
Intercept
22 m
From
399 m
To
421 m
Hole Depth
481.6 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00298:399.0-421.0
Mining Method
mixed

Location

Easting
611961
Northing
9346397
CRS
unknown
Elevation
415 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.46
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 22m sub-interval at 0.98 g/t Au is a strong result, indicating higher-grade zones within the broader intercept.

Positive factors

  • Strong gold grade for IOCG deposit type.
  • Good intercept length for a sub-interval.

Evidence · table

“0.98”

Context: 22

FURN-DD-00299Furnas Copper-Gold Project · copperGrade: 1.03Grade Unit: % CuEqIntercept: 62 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00299
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.03
Grade Unit
% CuEq
Intercept
62 m
From
422 m
To
483 m
Hole Depth
568.5 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00299:422.0-483.0
Mining Method
mixed

Location

Easting
612465
Northing
9346176
CRS
unknown
Elevation
321 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.03
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 62m intercept at 1.03% CuEq is an exceptional result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Exceptional copper equivalent grade for IOCG deposit type.
  • Good intercept length.
  • High grade-thickness product (46.8 %Cu·m).

Evidence · table

“1.03”

Context: 62

FURN-DD-00299Furnas Copper-Gold Project · goldGrade: 0.57Grade Unit: g/tIntercept: 62 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00299
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.57
Grade Unit
g/t
Intercept
62 m
From
422 m
To
483 m
Hole Depth
568.5 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00299:422.0-483.0
Mining Method
mixed

Location

Easting
612465
Northing
9346176
CRS
unknown
Elevation
321 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.03
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 62m intercept at 0.57 g/t Au is a strong result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Strong gold grade for IOCG deposit type.
  • Good intercept length.

Evidence · table

“0.57”

Context: 62

FURN-DD-00299Furnas Copper-Gold Project · copperGrade: 1.42Grade Unit: % CuEqIntercept: 16 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00299
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.42
Grade Unit
% CuEq
Intercept
16 m
From
444 m
To
460 m
Hole Depth
568.5 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00299:444.0-460.0
Mining Method
mixed

Location

Easting
612465
Northing
9346176
CRS
unknown
Elevation
321 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.42
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 16m sub-interval at 1.42% CuEq is an exceptional result, indicating very high-grade zones within the broader intercept.

Positive factors

  • Exceptional copper equivalent grade for IOCG deposit type.
  • Moderate grade-thickness product (14.7 %Cu·m).

Evidence · table

“1.42”

Context: 16

FURN-DD-00299Furnas Copper-Gold Project · goldGrade: 1.05Grade Unit: g/tIntercept: 16 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00299
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.05
Grade Unit
g/t
Intercept
16 m
From
444 m
To
460 m
Hole Depth
568.5 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00299:444.0-460.0
Mining Method
mixed

Location

Easting
612465
Northing
9346176
CRS
unknown
Elevation
321 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.42
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 16m sub-interval at 1.05 g/t Au is an exceptional result, indicating higher-grade zones within the broader intercept.

Positive factors

  • Exceptional gold grade for IOCG deposit type.

Evidence · table

“1.05”

Context: 16

FURN-DD-00302Furnas Copper-Gold Project · copperGrade: 0.92Grade Unit: % CuEqIntercept: 51 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00302
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.92
Grade Unit
% CuEq
Intercept
51 m
From
315 m
To
366 m
Hole Depth
426.2 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00302:315.0-366.0
Mining Method
mixed

Location

Easting
612290
Northing
9346132
CRS
unknown
Elevation
367 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
0.92
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 51m intercept at 0.92% CuEq is an exceptional result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Exceptional copper equivalent grade for IOCG deposit type.
  • Good intercept length.
  • High grade-thickness product (37.5 %Cu·m).

Evidence · table

“0.92”

Context: 51

FURN-DD-00302Furnas Copper-Gold Project · goldGrade: 0.38Grade Unit: g/tIntercept: 51 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00302
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.38
Grade Unit
g/t
Intercept
51 m
From
315 m
To
366 m
Hole Depth
426.2 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00302:315.0-366.0
Mining Method
mixed

Location

Easting
612290
Northing
9346132
CRS
unknown
Elevation
367 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
0.92
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 51m intercept at 0.38 g/t Au is a moderate result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Moderate gold grade for IOCG deposit type.
  • Good intercept length.

Evidence · table

“0.38”

Context: 51

FURN-DD-00302Furnas Copper-Gold Project · copperGrade: 1.17Grade Unit: % CuEqIntercept: 27 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00302
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.17
Grade Unit
% CuEq
Intercept
27 m
From
334 m
To
361 m
Hole Depth
426.2 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00302:334.0-361.0
Mining Method
mixed

Location

Easting
612290
Northing
9346132
CRS
unknown
Elevation
367 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.17
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 27m sub-interval at 1.17% CuEq is an exceptional result, indicating very high-grade zones within the broader intercept.

Positive factors

  • Exceptional copper equivalent grade for IOCG deposit type.
  • Good intercept length for a sub-interval.
  • High grade-thickness product (25.7 %Cu·m).

Evidence · table

“1.17”

Context: 27

FURN-DD-00302Furnas Copper-Gold Project · goldGrade: 0.42Grade Unit: g/tIntercept: 27 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00302
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.42
Grade Unit
g/t
Intercept
27 m
From
334 m
To
361 m
Hole Depth
426.2 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00302:334.0-361.0
Mining Method
mixed

Location

Easting
612290
Northing
9346132
CRS
unknown
Elevation
367 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.17
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 27m sub-interval at 0.42 g/t Au is a moderate result, indicating higher-grade zones within the broader intercept.

Positive factors

  • Moderate gold grade for IOCG deposit type.
  • Good intercept length for a sub-interval.

Evidence · table

“0.42”

Context: 27

FURN-DD-00303Furnas Copper-Gold Project · copperGrade: 1.52Grade Unit: % CuEqIntercept: 46 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00303
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.52
Grade Unit
% CuEq
Intercept
46 m
From
243 m
To
289 m
Hole Depth
400.4 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00303:243.0-289.0
Mining Method
mixed

Location

Easting
612017
Northing
9346258
CRS
unknown
Elevation
414 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.52
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 46m intercept at 1.52% CuEq is an exceptional result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Exceptional copper equivalent grade for IOCG deposit type.
  • Good intercept length.
  • High grade-thickness product (60.8 %Cu·m).

Evidence · table

“1.52”

Context: 46

FURN-DD-00303Furnas Copper-Gold Project · goldGrade: 0.44Grade Unit: g/tIntercept: 46 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00303
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.44
Grade Unit
g/t
Intercept
46 m
From
243 m
To
289 m
Hole Depth
400.4 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00303:243.0-289.0
Mining Method
mixed

Location

Easting
612017
Northing
9346258
CRS
unknown
Elevation
414 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.52
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 46m intercept at 0.44 g/t Au is a moderate result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Moderate gold grade for IOCG deposit type.
  • Good intercept length.

Evidence · table

“0.44”

Context: 46

FURN-DD-00303Furnas Copper-Gold Project · copperGrade: 1.91Grade Unit: % CuEqIntercept: 29 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00303
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.91
Grade Unit
% CuEq
Intercept
29 m
From
260 m
To
289 m
Hole Depth
400.4 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00303:260.0-289.0
Mining Method
mixed

Location

Easting
612017
Northing
9346258
CRS
unknown
Elevation
414 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.91
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 29m sub-interval at 1.91% CuEq is an exceptional result, indicating very high-grade zones within the broader intercept.

Positive factors

  • Exceptional copper equivalent grade for IOCG deposit type.
  • Good intercept length for a sub-interval.
  • High grade-thickness product (48.8 %Cu·m).

Evidence · table

“1.91”

Context: 29

FURN-DD-00303Furnas Copper-Gold Project · goldGrade: 0.5Grade Unit: g/tIntercept: 29 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00303
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.5
Grade Unit
g/t
Intercept
29 m
From
260 m
To
289 m
Hole Depth
400.4 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00303:260.0-289.0
Mining Method
mixed

Location

Easting
612017
Northing
9346258
CRS
unknown
Elevation
414 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.91
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 29m sub-interval at 0.50 g/t Au is a strong result, indicating higher-grade zones within the broader intercept.

Positive factors

  • Strong gold grade for IOCG deposit type.
  • Good intercept length for a sub-interval.

Evidence · table

“0.50”

Context: 29

FURN-DD-00304Furnas Copper-Gold Project · copperGrade: 1.45Grade Unit: % CuEqIntercept: 74 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00304
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.45
Grade Unit
% CuEq
Intercept
74 m
From
370 m
To
444 m
Hole Depth
501 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00304:370.0-444.0
Mining Method
mixed

Location

Easting
612139
Northing
9346428
CRS
unknown
Elevation
345 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.45
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 74m intercept at 1.45% CuEq is an exceptional result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Exceptional copper equivalent grade for IOCG deposit type.
  • Very long intercept length.
  • High grade-thickness product (70.3 %Cu·m).

Evidence · table

“1.45”

Context: 74

FURN-DD-00304Furnas Copper-Gold Project · goldGrade: 1.04Grade Unit: g/tIntercept: 74 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00304
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.04
Grade Unit
g/t
Intercept
74 m
From
370 m
To
444 m
Hole Depth
501 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00304:370.0-444.0
Mining Method
mixed

Location

Easting
612139
Northing
9346428
CRS
unknown
Elevation
345 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.45
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 74m intercept at 1.04 g/t Au is an exceptional result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Exceptional gold grade for IOCG deposit type.
  • Very long intercept length.

Evidence · table

“1.04”

Context: 74

FURN-DD-00304Furnas Copper-Gold Project · copperGrade: 1.67Grade Unit: % CuEqIntercept: 50 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00304
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.67
Grade Unit
% CuEq
Intercept
50 m
From
391 m
To
441 m
Hole Depth
501 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00304:391.0-441.0
Mining Method
mixed

Location

Easting
612139
Northing
9346428
CRS
unknown
Elevation
345 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.67
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 50m sub-interval at 1.67% CuEq is an exceptional result, indicating very high-grade zones within the broader intercept.

Positive factors

  • Exceptional copper equivalent grade for IOCG deposit type.
  • Good intercept length for a sub-interval.
  • High grade-thickness product (50.5 %Cu·m).

Evidence · table

“1.67”

Context: 50

FURN-DD-00304Furnas Copper-Gold Project · goldGrade: 1.4Grade Unit: g/tIntercept: 50 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00304
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.4
Grade Unit
g/t
Intercept
50 m
From
391 m
To
441 m
Hole Depth
501 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00304:391.0-441.0
Mining Method
mixed

Location

Easting
612139
Northing
9346428
CRS
unknown
Elevation
345 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.67
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 50m sub-interval at 1.40 g/t Au is an exceptional result, indicating very high-grade zones within the broader intercept.

Positive factors

  • Exceptional gold grade for IOCG deposit type.
  • Good intercept length for a sub-interval.

Evidence · table

“1.40”

Context: 50

FURN-DD-00305Furnas Copper-Gold Project · copperGrade: 1.26Grade Unit: % CuEqIntercept: 103 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00305
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.26
Grade Unit
% CuEq
Intercept
103 m
From
352 m
To
455 m
Hole Depth
651.8 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00305:352.0-455.0
Mining Method
mixed

Location

Easting
612193
Northing
9346401
CRS
unknown
Elevation
337 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.26
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 103m intercept at 1.26% CuEq is an exceptional result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Exceptional copper equivalent grade for IOCG deposit type.
  • Very long intercept length.
  • High grade-thickness product (90.6 %Cu·m).

Evidence · table

“1.26”

Context: 103

FURN-DD-00305Furnas Copper-Gold Project · goldGrade: 0.8Grade Unit: g/tIntercept: 103 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00305
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.8
Grade Unit
g/t
Intercept
103 m
From
352 m
To
455 m
Hole Depth
651.8 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00305:352.0-455.0
Mining Method
mixed

Location

Easting
612193
Northing
9346401
CRS
unknown
Elevation
337 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.26
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 103m intercept at 0.80 g/t Au is a strong result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Strong gold grade for IOCG deposit type.
  • Very long intercept length.

Evidence · table

“0.80”

Context: 103

FURN-DD-00305Furnas Copper-Gold Project · copperGrade: 1.6Grade Unit: % CuEqIntercept: 27 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00305
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.6
Grade Unit
% CuEq
Intercept
27 m
From
408 m
To
435 m
Hole Depth
651.8 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00305:408.0-435.0
Mining Method
mixed

Location

Easting
612193
Northing
9346401
CRS
unknown
Elevation
337 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.6
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 27m sub-interval at 1.60% CuEq is an exceptional result, indicating very high-grade zones within the broader intercept.

Positive factors

  • Exceptional copper equivalent grade for IOCG deposit type.
  • Good intercept length for a sub-interval.
  • High grade-thickness product (28.1 %Cu·m).

Evidence · table

“1.60”

Context: 27

FURN-DD-00305Furnas Copper-Gold Project · goldGrade: 1.18Grade Unit: g/tIntercept: 27 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00305
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.18
Grade Unit
g/t
Intercept
27 m
From
408 m
To
435 m
Hole Depth
651.8 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00305:408.0-435.0
Mining Method
mixed

Location

Easting
612193
Northing
9346401
CRS
unknown
Elevation
337 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
1.6
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 27m sub-interval at 1.18 g/t Au is an exceptional result, indicating very high-grade zones within the broader intercept.

Positive factors

  • Exceptional gold grade for IOCG deposit type.
  • Good intercept length for a sub-interval.

Evidence · table

“1.18”

Context: 27

FURN-DD-00307Furnas Copper-Gold Project · copperGrade: 0.69Grade Unit: %Intercept: 20 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00307
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.69
Grade Unit
%
Intercept
20 m
From
290 m
To
310 m
Hole Depth
497.7 m

Classification

Deposit Type
iocg
Program
mixed
Sample Type
drill
Group ID
FURN-DD-00307:290.0-310.0
Mining Method
mixed

Location

Easting
612226
Northing
9346267
CRS
unknown
Elevation
333 m
Azimuth
200 °
Dip
60 °
Loc. Confidence
high

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates, field_duplicates, check_assays

Metal Equivalent

Metal Eq. Grade
0.79
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: A 20m intercept at 0.69% Cu is a strong result for an IOCG deposit, demonstrating significant mineralization.

Positive factors

  • Strong copper grade for IOCG deposit type.
  • Good intercept length.
  • Moderate grade-thickness product (13.8 %Cu·m).

Evidence · table

“0.69”

Context: 20

inclFurnas Copper-Gold Project · copperGrade: 0.85Grade Unit: %Intercept: 32 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.85
Grade Unit
%
Intercept
32 m
From
491 m
To
523 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:491-523
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.85 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 27.2 %·m is weak (grade alone is strong; the better of the two is used).

Positive factors

  • 0.85 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.85”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.54Grade Unit: g/tIntercept: 32 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.54
Grade Unit
g/t
Intercept
32 m
From
491 m
To
523 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:491-523
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.54 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 17.3 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.54”

Context: incl

inclFurnas Copper-Gold Project · copperGrade: 0.81Grade Unit: %Intercept: 20 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.81
Grade Unit
%
Intercept
20 m
From
519 m
To
539 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:519-539
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.81 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 16.2 %·m is below (grade alone is strong; the better of the two is used).

Positive factors

  • 0.81 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.81”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.62Grade Unit: g/tIntercept: 20 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.62
Grade Unit
g/t
Intercept
20 m
From
519 m
To
539 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:519-539
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.62 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 12.4 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.62”

Context: incl

inclFurnas Copper-Gold Project · copperGrade: 1.51Grade Unit: %Intercept: 18 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.51
Grade Unit
%
Intercept
18 m
From
429 m
To
447 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:429-447
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.51 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 27.2 %·m is weak (grade alone is exceptional; the better of the two is used).

Positive factors

  • 1.51 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.51”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.46Grade Unit: g/tIntercept: 18 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.46
Grade Unit
g/t
Intercept
18 m
From
429 m
To
447 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:429-447
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.46 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 8.3 g/t·m is below (grade alone is weak; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.46”

Context: incl

inclFurnas Copper-Gold Project · copperGrade: 1.33Grade Unit: %Intercept: 23 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.33
Grade Unit
%
Intercept
23 m
From
489 m
To
512 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:489-512
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.33 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 30.6 %·m is weak (grade alone is exceptional; the better of the two is used).

Positive factors

  • 1.33 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.33”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.71Grade Unit: g/tIntercept: 23 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.71
Grade Unit
g/t
Intercept
23 m
From
489 m
To
512 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:489-512
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.71 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 16.3 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.71”

Context: incl

inclFurnas Copper-Gold Project · copperGrade: 0.93Grade Unit: %Intercept: 17 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.93
Grade Unit
%
Intercept
17 m
From
174 m
To
190 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:174-190
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.93 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 15.8 %·m is below (grade alone is exceptional; the better of the two is used).

Positive factors

  • 0.93 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.93”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.35Grade Unit: g/tIntercept: 17 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.35
Grade Unit
g/t
Intercept
17 m
From
174 m
To
190 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:174-190
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.35 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 5.9 g/t·m is below (grade alone is weak; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.35”

Context: incl

inclFurnas Copper-Gold Project · copperGrade: 0.75Grade Unit: %Intercept: 19 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.75
Grade Unit
%
Intercept
19 m
From
252 m
To
271 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:252-271
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.75 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 14.3 %·m is below (grade alone is strong; the better of the two is used).

Positive factors

  • 0.75 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.75”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.39Grade Unit: g/tIntercept: 19 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.39
Grade Unit
g/t
Intercept
19 m
From
252 m
To
271 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:252-271
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.39 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 7.4 g/t·m is below (grade alone is weak; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.39”

Context: incl

inclFurnas Copper-Gold Project · copperGrade: 0.59Grade Unit: %Intercept: 36 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.59
Grade Unit
%
Intercept
36 m
From
212 m
To
248 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:212-248
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.59 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 21.2 %·m is weak (grade alone is strong; the better of the two is used).

Positive factors

  • 0.59 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.59”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.68Grade Unit: g/tIntercept: 36 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.68
Grade Unit
g/t
Intercept
36 m
From
212 m
To
248 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:212-248
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.68 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 24.5 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.68”

Context: incl

inclFurnas Copper-Gold Project · copperGrade: 0.63Grade Unit: %Intercept: 13 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.63
Grade Unit
%
Intercept
13 m
From
235 m
To
248 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:235-248
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.63 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 8.2 %·m is below (grade alone is strong; the better of the two is used).

Positive factors

  • 0.63 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.63”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.95Grade Unit: g/tIntercept: 13 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.95
Grade Unit
g/t
Intercept
13 m
From
235 m
To
248 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:235-248
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.95 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 12.3 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.95”

Context: incl

inclFurnas Copper-Gold Project · copperGrade: 0.63Grade Unit: %Intercept: 47 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.63
Grade Unit
%
Intercept
47 m
From
570 m
To
617 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:570-617
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.63 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 29.6 %·m is weak (grade alone is strong; the better of the two is used).

Positive factors

  • 0.63 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.63”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.46Grade Unit: g/tIntercept: 47 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.46
Grade Unit
g/t
Intercept
47 m
From
570 m
To
617 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:570-617
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.46 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 21.6 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.46”

Context: incl

inclFurnas Copper-Gold Project · copperGrade: 0.89Grade Unit: %Intercept: 18 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.89
Grade Unit
%
Intercept
18 m
From
182 m
To
200 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:182-200
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.89 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 16.0 %·m is below (grade alone is strong; the better of the two is used).

Positive factors

  • 0.89 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.89”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.23Grade Unit: g/tIntercept: 18 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.23
Grade Unit
g/t
Intercept
18 m
From
182 m
To
200 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:182-200
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.23 g/t gold is below against the default band [5, 2, 1, 0.3] g/t. Grade×width 4.1 g/t·m is below.

Negative factors

  • 0.23 g/t gold is below the weak threshold (0.3 g/t) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.23”

Context: incl

inclFurnas Copper-Gold Project · copperGrade: 1.04Grade Unit: %Intercept: 47 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.04
Grade Unit
%
Intercept
47 m
From
297 m
To
344 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:297-344
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.04 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 48.9 %·m is weak (grade alone is exceptional; the better of the two is used).

Positive factors

  • 1.04 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.04”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.3Grade Unit: g/tIntercept: 47 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.3
Grade Unit
g/t
Intercept
47 m
From
297 m
To
344 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:297-344
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.3 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 14.1 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.30”

Context: incl

inclFurnas Copper-Gold Project · copperGrade: 1.1Grade Unit: %Intercept: 30 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.1
Grade Unit
%
Intercept
30 m
From
359 m
To
389 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:359-389
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.1 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 33.0 %·m is weak (grade alone is exceptional; the better of the two is used).

Positive factors

  • 1.1 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.10”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 1.48Grade Unit: g/tIntercept: 30 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.48
Grade Unit
g/t
Intercept
30 m
From
359 m
To
389 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:359-389
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.48 g/t gold is moderate against the default band [5, 2, 1, 0.3] g/t. Grade×width 44.4 g/t·m is moderate.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.48”

Context: incl

inclFurnas Copper-Gold Project · copperGrade: 1.34Grade Unit: %Intercept: 26 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.34
Grade Unit
%
Intercept
26 m
From
353 m
To
379 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:353-379
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.34 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 34.8 %·m is weak (grade alone is exceptional; the better of the two is used).

Positive factors

  • 1.34 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.34”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.63Grade Unit: g/tIntercept: 26 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.63
Grade Unit
g/t
Intercept
26 m
From
353 m
To
379 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:353-379
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.63 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 16.4 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.63”

Context: incl

inclFurnas Copper-Gold Project · copperGrade: 0.99Grade Unit: %Intercept: 22 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.99
Grade Unit
%
Intercept
22 m
From
399 m
To
421 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:399-421
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.99 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 21.8 %·m is weak (grade alone is exceptional; the better of the two is used).

Positive factors

  • 0.99 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.99”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.98Grade Unit: g/tIntercept: 22 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.98
Grade Unit
g/t
Intercept
22 m
From
399 m
To
421 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:399-421
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.98 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 21.6 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.98”

Context: incl

inclFurnas Copper-Gold Project · copperGrade: 0.92Grade Unit: %Intercept: 16 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.92
Grade Unit
%
Intercept
16 m
From
444 m
To
460 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:444-460
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.92 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 14.7 %·m is below (grade alone is exceptional; the better of the two is used).

Positive factors

  • 0.92 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.92”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 1.05Grade Unit: g/tIntercept: 16 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.05
Grade Unit
g/t
Intercept
16 m
From
444 m
To
460 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:444-460
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.05 g/t gold is moderate against the default band [5, 2, 1, 0.3] g/t. Grade×width 16.8 g/t·m is weak (grade alone is moderate; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.05”

Context: incl

inclFurnas Copper-Gold Project · copperGrade: 0.97Grade Unit: %Intercept: 27 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.97
Grade Unit
%
Intercept
27 m
From
334 m
To
361 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:334-361
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.97 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 26.2 %·m is weak (grade alone is exceptional; the better of the two is used).

Positive factors

  • 0.97 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.97”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.42Grade Unit: g/tIntercept: 27 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.42
Grade Unit
g/t
Intercept
27 m
From
334 m
To
361 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:334-361
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.42 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 11.3 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.42”

Context: incl

inclFurnas Copper-Gold Project · copperGrade: 1.67Grade Unit: %Intercept: 29 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.67
Grade Unit
%
Intercept
29 m
From
260 m
To
289 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:260-289
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.67 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 48.4 %·m is weak (grade alone is exceptional; the better of the two is used).

Positive factors

  • 1.67 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.67”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.5Grade Unit: g/tIntercept: 29 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.5
Grade Unit
g/t
Intercept
29 m
From
260 m
To
289 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:260-289
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.5 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 14.5 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.50”

Context: incl

inclFurnas Copper-Gold Project · copperGrade: 1Grade Unit: %Intercept: 50 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1
Grade Unit
%
Intercept
50 m
From
391 m
To
441 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:391-441
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 50.0 %·m is weak (grade alone is exceptional; the better of the two is used).

Positive factors

  • 1 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.00”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 1.4Grade Unit: g/tIntercept: 50 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.4
Grade Unit
g/t
Intercept
50 m
From
391 m
To
441 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:391-441
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.4 g/t gold is moderate against the default band [5, 2, 1, 0.3] g/t. Grade×width 70.0 g/t·m is moderate.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.40”

Context: incl

inclFurnas Copper-Gold Project · copperGrade: 1.04Grade Unit: %Intercept: 27 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.04
Grade Unit
%
Intercept
27 m
From
408 m
To
435 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:408-435
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.04 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 28.1 %·m is weak (grade alone is exceptional; the better of the two is used).

Positive factors

  • 1.04 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.04”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 1.18Grade Unit: g/tIntercept: 27 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.18
Grade Unit
g/t
Intercept
27 m
From
408 m
To
435 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:408-435
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.18 g/t gold is moderate against the default band [5, 2, 1, 0.3] g/t. Grade×width 31.9 g/t·m is moderate.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.18”

Context: incl

FURN-DD-00307Furnas Copper-Gold Project · goldGrade: 0.2Grade Unit: g/tIntercept: 20 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00307
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.2
Grade Unit
g/t
Intercept
20 m
From
290 m
To
310 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00307:290-310
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.2 g/t gold is below against the default band [5, 2, 1, 0.3] g/t. Grade×width 4.0 g/t·m is below.

Negative factors

  • 0.2 g/t gold is below the weak threshold (0.3 g/t) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.20”

Context: FURN-DD-00307

FURN-DD-00307Furnas Copper-Gold Project · copperGrade: 0.63Grade Unit: %Intercept: 52 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00307
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.63
Grade Unit
%
Intercept
52 m
From
355 m
To
407 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00307:355-407
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.63 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 32.8 %·m is weak (grade alone is strong; the better of the two is used).

Positive factors

  • 0.63 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.63”

Context: FURN-DD-00307

FURN-DD-00307Furnas Copper-Gold Project · goldGrade: 0.35Grade Unit: g/tIntercept: 52 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00307
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.35
Grade Unit
g/t
Intercept
52 m
From
355 m
To
407 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00307:355-407
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.35 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 18.2 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.35”

Context: FURN-DD-00307

FURN-DD-00309Furnas Copper-Gold Project · copperGrade: 1.28Grade Unit: %Intercept: 56 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00309
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.28
Grade Unit
%
Intercept
56 m
From
91 m
To
147 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00309:91-147
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.28 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 71.7 %·m is moderate (grade alone is exceptional; the better of the two is used).

Positive factors

  • 1.28 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.28”

Context: FURN-DD-00309

FURN-DD-00309Furnas Copper-Gold Project · goldGrade: 0.24Grade Unit: g/tIntercept: 56 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00309
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.24
Grade Unit
g/t
Intercept
56 m
From
91 m
To
147 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00309:91-147
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.24 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 13.4 g/t·m is weak (grade alone is below; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.24”

Context: FURN-DD-00309

inclFurnas Copper-Gold Project · copperGrade: 1.86Grade Unit: %Intercept: 23 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.86
Grade Unit
%
Intercept
23 m
From
116 m
To
139 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:116-139
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.86 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 42.8 %·m is weak (grade alone is exceptional; the better of the two is used).

Positive factors

  • 1.86 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.86”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.31Grade Unit: g/tIntercept: 23 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.31
Grade Unit
g/t
Intercept
23 m
From
116 m
To
139 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:116-139
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.31 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 7.1 g/t·m is below (grade alone is weak; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.31”

Context: incl

FURN-DD-00310Furnas Copper-Gold Project · copperGrade: 0.8Grade Unit: %Intercept: 29 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00310
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.8
Grade Unit
%
Intercept
29 m
From
121 m
To
150 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00310:121-150
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.8 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 23.2 %·m is weak (grade alone is strong; the better of the two is used).

Positive factors

  • 0.8 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.80”

Context: FURN-DD-00310

FURN-DD-00310Furnas Copper-Gold Project · goldGrade: 0.36Grade Unit: g/tIntercept: 29 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00310
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.36
Grade Unit
g/t
Intercept
29 m
From
121 m
To
150 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00310:121-150
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.36 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 10.4 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.36”

Context: FURN-DD-00310

FURN-DD-00311Furnas Copper-Gold Project · copperGrade: 0.74Grade Unit: %Intercept: 63 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00311
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.74
Grade Unit
%
Intercept
63 m
From
356 m
To
419 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00311:356-419
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.74 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 46.6 %·m is weak (grade alone is strong; the better of the two is used).

Positive factors

  • 0.74 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.74”

Context: FURN-DD-00311

FURN-DD-00311Furnas Copper-Gold Project · goldGrade: 0.45Grade Unit: g/tIntercept: 63 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00311
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.45
Grade Unit
g/t
Intercept
63 m
From
356 m
To
419 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00311:356-419
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.45 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 28.4 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.45”

Context: FURN-DD-00311

inclFurnas Copper-Gold Project · copperGrade: 0.88Grade Unit: %Intercept: 28 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.88
Grade Unit
%
Intercept
28 m
From
361 m
To
389 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:361-389
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.88 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 24.6 %·m is weak (grade alone is strong; the better of the two is used).

Positive factors

  • 0.88 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.88”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.53Grade Unit: g/tIntercept: 28 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.53
Grade Unit
g/t
Intercept
28 m
From
361 m
To
389 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:361-389
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.53 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 14.8 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.53”

Context: incl

FURN-DD-00313Furnas Copper-Gold Project · copperGrade: 0.61Grade Unit: %Intercept: 85 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00313
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.61
Grade Unit
%
Intercept
85 m
From
279 m
To
364 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00313:279-364
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.61 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 51.9 %·m is weak (grade alone is strong; the better of the two is used).

Positive factors

  • 0.61 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.61”

Context: FURN-DD-00313

FURN-DD-00313Furnas Copper-Gold Project · goldGrade: 0.4Grade Unit: g/tIntercept: 85 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00313
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.4
Grade Unit
g/t
Intercept
85 m
From
279 m
To
364 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00313:279-364
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.4 g/t gold is moderate against the default band [5, 2, 1, 0.3] g/t. Grade×width 34.0 g/t·m is moderate (grade alone is weak; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.40”

Context: FURN-DD-00313

FURN-DD-00314Furnas Copper-Gold Project · copperGrade: 0.72Grade Unit: %Intercept: 54 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00314
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.72
Grade Unit
%
Intercept
54 m
From
113 m
To
167 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00314:113-167
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.72 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 38.9 %·m is weak (grade alone is strong; the better of the two is used).

Positive factors

  • 0.72 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.72”

Context: FURN-DD-00314

FURN-DD-00314Furnas Copper-Gold Project · goldGrade: 0.42Grade Unit: g/tIntercept: 54 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00314
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.42
Grade Unit
g/t
Intercept
54 m
From
113 m
To
167 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00314:113-167
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.42 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 22.7 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.42”

Context: FURN-DD-00314

inclFurnas Copper-Gold Project · copperGrade: 1.22Grade Unit: %Intercept: 18 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.22
Grade Unit
%
Intercept
18 m
From
149 m
To
167 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:149-167
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.22 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 22.0 %·m is weak (grade alone is exceptional; the better of the two is used).

Positive factors

  • 1.22 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.22”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.79Grade Unit: g/tIntercept: 18 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.79
Grade Unit
g/t
Intercept
18 m
From
149 m
To
167 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:149-167
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.79 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 14.2 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.79”

Context: incl

FURN-DD-00316Furnas Copper-Gold Project · copperGrade: 0.67Grade Unit: %Intercept: 100 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00316
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.67
Grade Unit
%
Intercept
100 m
From
492 m
To
592 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00316:492-592
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.67 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 67.0 %·m is moderate (grade alone is strong; the better of the two is used).

Positive factors

  • 0.67 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.67”

Context: FURN-DD-00316

FURN-DD-00316Furnas Copper-Gold Project · goldGrade: 0.36Grade Unit: g/tIntercept: 100 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00316
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.36
Grade Unit
g/t
Intercept
100 m
From
492 m
To
592 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00316:492-592
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.36 g/t gold is moderate against the default band [5, 2, 1, 0.3] g/t. Grade×width 36.0 g/t·m is moderate (grade alone is weak; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.36”

Context: FURN-DD-00316

inclFurnas Copper-Gold Project · copperGrade: 0.74Grade Unit: %Intercept: 38 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.74
Grade Unit
%
Intercept
38 m
From
540 m
To
578 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:540-578
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.74 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 28.1 %·m is weak (grade alone is strong; the better of the two is used).

Positive factors

  • 0.74 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.74”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.67Grade Unit: g/tIntercept: 38 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.67
Grade Unit
g/t
Intercept
38 m
From
540 m
To
578 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:540-578
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.67 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 25.5 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.67”

Context: incl

FURN-DD-00318Furnas Copper-Gold Project · copperGrade: 1.23Grade Unit: %Intercept: 46 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00318
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.23
Grade Unit
%
Intercept
46 m
From
150 m
To
196 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00318:150-196
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.23 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 56.6 %·m is weak (grade alone is exceptional; the better of the two is used).

Positive factors

  • 1.23 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.23”

Context: FURN-DD-00318

FURN-DD-00318Furnas Copper-Gold Project · goldGrade: 0.52Grade Unit: g/tIntercept: 46 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00318
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.52
Grade Unit
g/t
Intercept
46 m
From
150 m
To
196 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00318:150-196
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.52 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 23.9 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.52”

Context: FURN-DD-00318

FURN-DD-00319Furnas Copper-Gold Project · copperGrade: 1.65Grade Unit: %Intercept: 33 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00319
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.65
Grade Unit
%
Intercept
33 m
From
125 m
To
158 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00319:125-158
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.65 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 54.4 %·m is weak (grade alone is exceptional; the better of the two is used).

Positive factors

  • 1.65 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.65”

Context: FURN-DD-00319

FURN-DD-00319Furnas Copper-Gold Project · goldGrade: 0.38Grade Unit: g/tIntercept: 33 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00319
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.38
Grade Unit
g/t
Intercept
33 m
From
125 m
To
158 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00319:125-158
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.38 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 12.5 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.38”

Context: FURN-DD-00319

FURN-DD-00322Furnas Copper-Gold Project · copperGrade: 0.76Grade Unit: %Intercept: 115 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00322
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.76
Grade Unit
%
Intercept
115 m
From
647 m
To
761 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00322:647-761
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.76 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 87.4 %·m is moderate (grade alone is strong; the better of the two is used).

Positive factors

  • 0.76 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.76”

Context: FURN-DD-00322

FURN-DD-00322Furnas Copper-Gold Project · goldGrade: 0.47Grade Unit: g/tIntercept: 115 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00322
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.47
Grade Unit
g/t
Intercept
115 m
From
647 m
To
761 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00322:647-761
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.47 g/t gold is moderate against the default band [5, 2, 1, 0.3] g/t. Grade×width 54.0 g/t·m is moderate (grade alone is weak; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.47”

Context: FURN-DD-00322

inclFurnas Copper-Gold Project · copperGrade: 0.81Grade Unit: %Intercept: 46 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.81
Grade Unit
%
Intercept
46 m
From
661 m
To
707 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:661-707
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.81 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 37.3 %·m is weak (grade alone is strong; the better of the two is used).

Positive factors

  • 0.81 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.81”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.56Grade Unit: g/tIntercept: 46 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.56
Grade Unit
g/t
Intercept
46 m
From
661 m
To
707 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:661-707
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.56 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 25.8 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.56”

Context: incl

inclFurnas Copper-Gold Project · copperGrade: 0.91Grade Unit: %Intercept: 28 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.91
Grade Unit
%
Intercept
28 m
From
733 m
To
761 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:733-761
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.91 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 25.5 %·m is weak (grade alone is exceptional; the better of the two is used).

Positive factors

  • 0.91 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.91”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.71Grade Unit: g/tIntercept: 28 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.71
Grade Unit
g/t
Intercept
28 m
From
733 m
To
761 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:733-761
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.71 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 19.9 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.71”

Context: incl

FURN-DD-00323Furnas Copper-Gold Project · copperGrade: 0.91Grade Unit: %Intercept: 62 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
FURN-DD-00323
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.91
Grade Unit
%
Intercept
62 m
From
167 m
To
229 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00323:167-229
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.91 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 56.4 %·m is weak (grade alone is exceptional; the better of the two is used).

Positive factors

  • 0.91 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.91”

Context: FURN-DD-00323

FURN-DD-00323Furnas Copper-Gold Project · goldGrade: 0.52Grade Unit: g/tIntercept: 62 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00323
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.52
Grade Unit
g/t
Intercept
62 m
From
167 m
To
229 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00323:167-229
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.52 g/t gold is moderate against the default band [5, 2, 1, 0.3] g/t. Grade×width 32.2 g/t·m is moderate (grade alone is weak; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.52”

Context: FURN-DD-00323

FURN-DD-00324Furnas Copper-Gold Project · copperGrade: 0.8Grade Unit: %Intercept: 62 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00324
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.8
Grade Unit
%
Intercept
62 m
From
323 m
To
385 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00324:323-385
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.8 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 49.6 %·m is weak (grade alone is strong; the better of the two is used).

Positive factors

  • 0.8 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.80”

Context: FURN-DD-00324

FURN-DD-00324Furnas Copper-Gold Project · goldGrade: 0.59Grade Unit: g/tIntercept: 62 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00324
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.59
Grade Unit
g/t
Intercept
62 m
From
323 m
To
385 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00324:323-385
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.59 g/t gold is moderate against the default band [5, 2, 1, 0.3] g/t. Grade×width 36.6 g/t·m is moderate (grade alone is weak; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.59”

Context: FURN-DD-00324

inclFurnas Copper-Gold Project · copperGrade: 1.14Grade Unit: %Intercept: 16 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.14
Grade Unit
%
Intercept
16 m
From
323 m
To
339 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:323-339
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.14 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 18.2 %·m is below (grade alone is exceptional; the better of the two is used).

Positive factors

  • 1.14 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.14”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.92Grade Unit: g/tIntercept: 16 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.92
Grade Unit
g/t
Intercept
16 m
From
323 m
To
339 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:323-339
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.92 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 14.7 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.92”

Context: incl

FURN-DD-00325Furnas Copper-Gold Project · copperGrade: 0.72Grade Unit: %Intercept: 65 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00325
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.72
Grade Unit
%
Intercept
65 m
From
457 m
To
522 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00325:457-522
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.72 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 46.8 %·m is weak (grade alone is strong; the better of the two is used).

Positive factors

  • 0.72 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.72”

Context: FURN-DD-00325

FURN-DD-00325Furnas Copper-Gold Project · goldGrade: 0.43Grade Unit: g/tIntercept: 65 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00325
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.43
Grade Unit
g/t
Intercept
65 m
From
457 m
To
522 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00325:457-522
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.43 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 27.9 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.43”

Context: FURN-DD-00325

inclFurnas Copper-Gold Project · copperGrade: 1.13Grade Unit: %Intercept: 10 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.13
Grade Unit
%
Intercept
10 m
From
459 m
To
469 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:459-469
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.13 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 11.3 %·m is below (grade alone is exceptional; the better of the two is used).

Positive factors

  • 1.13 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.13”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.73Grade Unit: g/tIntercept: 10 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.73
Grade Unit
g/t
Intercept
10 m
From
459 m
To
469 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:459-469
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.73 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 7.3 g/t·m is below (grade alone is weak; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.73”

Context: incl

FURN-DD-00327Furnas Copper-Gold Project · copperGrade: 0.68Grade Unit: %Intercept: 54 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00327
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.68
Grade Unit
%
Intercept
54 m
From
138 m
To
192 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00327:138-192
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.68 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 36.7 %·m is weak (grade alone is strong; the better of the two is used).

Positive factors

  • 0.68 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.68”

Context: FURN-DD-00327

FURN-DD-00327Furnas Copper-Gold Project · goldGrade: 0.42Grade Unit: g/tIntercept: 54 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00327
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.42
Grade Unit
g/t
Intercept
54 m
From
138 m
To
192 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00327:138-192
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.42 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 22.7 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.42”

Context: FURN-DD-00327

inclFurnas Copper-Gold Project · copperGrade: 1.02Grade Unit: %Intercept: 25 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.02
Grade Unit
%
Intercept
25 m
From
150 m
To
175 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:150-175
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.02 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 25.5 %·m is weak (grade alone is exceptional; the better of the two is used).

Positive factors

  • 1.02 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.02”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.53Grade Unit: g/tIntercept: 25 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.53
Grade Unit
g/t
Intercept
25 m
From
150 m
To
175 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:150-175
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.53 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 13.3 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.53”

Context: incl

FURN-DD-00328Furnas Copper-Gold Project · copperGrade: 0.7Grade Unit: %Intercept: 57 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00328
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.7
Grade Unit
%
Intercept
57 m
From
473 m
To
530 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00328:473-530
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.7 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 39.9 %·m is weak (grade alone is strong; the better of the two is used).

Positive factors

  • 0.7 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.70”

Context: FURN-DD-00328

FURN-DD-00328Furnas Copper-Gold Project · goldGrade: 0.47Grade Unit: g/tIntercept: 57 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00328
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.47
Grade Unit
g/t
Intercept
57 m
From
473 m
To
530 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00328:473-530
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.47 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 26.8 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.47”

Context: FURN-DD-00328

inclFurnas Copper-Gold Project · copperGrade: 1.06Grade Unit: %Intercept: 8 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.06
Grade Unit
%
Intercept
8 m
From
473 m
To
481 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:473-481
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.06 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 8.5 %·m is below (grade alone is exceptional; the better of the two is used).

Positive factors

  • 1.06 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.06”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.72Grade Unit: g/tIntercept: 8 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.72
Grade Unit
g/t
Intercept
8 m
From
473 m
To
481 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:473-481
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.72 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 5.8 g/t·m is below (grade alone is weak; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.72”

Context: incl

FURN-DD-00330Furnas Copper-Gold Project · copperGrade: 0.82Grade Unit: %Intercept: 44 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00330
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.82
Grade Unit
%
Intercept
44 m
From
421 m
To
466 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00330:421-466
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.82 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 36.1 %·m is weak (grade alone is strong; the better of the two is used).

Positive factors

  • 0.82 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.82”

Context: FURN-DD-00330

FURN-DD-00330Furnas Copper-Gold Project · goldGrade: 0.5Grade Unit: g/tIntercept: 44 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00330
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.5
Grade Unit
g/t
Intercept
44 m
From
421 m
To
466 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00330:421-466
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.5 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 22.0 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.50”

Context: FURN-DD-00330

inclFurnas Copper-Gold Project · copperGrade: 0.98Grade Unit: %Intercept: 30 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.98
Grade Unit
%
Intercept
30 m
From
421 m
To
451 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:421-451
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.98 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 29.4 %·m is weak (grade alone is exceptional; the better of the two is used).

Positive factors

  • 0.98 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.98”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.54Grade Unit: g/tIntercept: 30 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.54
Grade Unit
g/t
Intercept
30 m
From
421 m
To
451 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:421-451
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.54 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 16.2 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.54”

Context: incl

FURN-DD-00331Furnas Copper-Gold Project · copperGrade: 0.61Grade Unit: %Intercept: 42 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00331
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.61
Grade Unit
%
Intercept
42 m
From
74 m
To
115 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00331:74-115
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.61 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 25.6 %·m is weak (grade alone is strong; the better of the two is used).

Positive factors

  • 0.61 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.61”

Context: FURN-DD-00331

FURN-DD-00331Furnas Copper-Gold Project · goldGrade: 0.92Grade Unit: g/tIntercept: 42 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00331
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.92
Grade Unit
g/t
Intercept
42 m
From
74 m
To
115 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00331:74-115
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.92 g/t gold is moderate against the default band [5, 2, 1, 0.3] g/t. Grade×width 38.6 g/t·m is moderate (grade alone is weak; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.92”

Context: FURN-DD-00331

inclFurnas Copper-Gold Project · copperGrade: 1.27Grade Unit: %Intercept: 8 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.27
Grade Unit
%
Intercept
8 m
From
94 m
To
102 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:94-102
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.27 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 10.2 %·m is below (grade alone is exceptional; the better of the two is used).

Positive factors

  • 1.27 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.27”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 1.77Grade Unit: g/tIntercept: 8 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.77
Grade Unit
g/t
Intercept
8 m
From
94 m
To
102 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:94-102
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.77 g/t gold is moderate against the default band [5, 2, 1, 0.3] g/t. Grade×width 14.2 g/t·m is weak (grade alone is moderate; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.77”

Context: incl

FURN-DD-00295Furnas Copper-Gold Project · copperGrade: 0.88Grade Unit: %Intercept: 27 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
FURN-DD-00295
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.88
Grade Unit
%
Intercept
27 m
From
314 m
To
341 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00295:314-341
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.88 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 23.8 %·m is weak (grade alone is strong; the better of the two is used).

Positive factors

  • 0.88 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.88”

Context: FURN-DD-00295

FURN-DD-00295Furnas Copper-Gold Project · goldGrade: 0.23Grade Unit: g/tIntercept: 27 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00295
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.23
Grade Unit
g/t
Intercept
27 m
From
314 m
To
341 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00295:314-341
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.23 g/t gold is below against the default band [5, 2, 1, 0.3] g/t. Grade×width 6.2 g/t·m is below.

Negative factors

  • 0.23 g/t gold is below the weak threshold (0.3 g/t) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.23”

Context: FURN-DD-00295

FURN-DD-00295Furnas Copper-Gold Project · copperGrade: 0.56Grade Unit: %Intercept: 33 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
FURN-DD-00295
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.56
Grade Unit
%
Intercept
33 m
From
389 m
To
422 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00295:389-422
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.56 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 18.5 %·m is below (grade alone is strong; the better of the two is used).

Positive factors

  • 0.56 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.56”

Context: FURN-DD-00295

FURN-DD-00295Furnas Copper-Gold Project · goldGrade: 0.91Grade Unit: g/tIntercept: 33 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
FURN-DD-00295
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.91
Grade Unit
g/t
Intercept
33 m
From
389 m
To
422 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00295:389-422
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.91 g/t gold is moderate against the default band [5, 2, 1, 0.3] g/t. Grade×width 30.0 g/t·m is moderate (grade alone is weak; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.91”

Context: FURN-DD-00295

FURN-DD-00300Furnas Copper-Gold Project · copperGrade: 1.02Grade Unit: %Intercept: 80 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00300
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.02
Grade Unit
%
Intercept
80 m
From
290 m
To
370 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00300:290-370
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.02 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 81.6 %·m is moderate (grade alone is exceptional; the better of the two is used).

Positive factors

  • 1.02 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.02”

Context: FURN-DD-00300

FURN-DD-00300Furnas Copper-Gold Project · goldGrade: 0.36Grade Unit: g/tIntercept: 80 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00300
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.36
Grade Unit
g/t
Intercept
80 m
From
290 m
To
370 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00300:290-370
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.36 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 28.8 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.36”

Context: FURN-DD-00300

inclFurnas Copper-Gold Project · copperGrade: 1.67Grade Unit: %Intercept: 28 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.67
Grade Unit
%
Intercept
28 m
From
322 m
To
350 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:322-350
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.67 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 46.8 %·m is weak (grade alone is exceptional; the better of the two is used).

Positive factors

  • 1.67 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.67”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.49Grade Unit: g/tIntercept: 28 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.49
Grade Unit
g/t
Intercept
28 m
From
322 m
To
350 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:322-350
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.49 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 13.7 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.49”

Context: incl

FURN-DD-00301Furnas Copper-Gold Project · copperGrade: 0.72Grade Unit: %Intercept: 65 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00301
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.72
Grade Unit
%
Intercept
65 m
From
425 m
To
490 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00301:425-490
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.72 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 46.8 %·m is weak (grade alone is strong; the better of the two is used).

Positive factors

  • 0.72 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.72”

Context: FURN-DD-00301

FURN-DD-00301Furnas Copper-Gold Project · goldGrade: 0.45Grade Unit: g/tIntercept: 65 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00301
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.45
Grade Unit
g/t
Intercept
65 m
From
425 m
To
490 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00301:425-490
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.45 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 29.3 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.45”

Context: FURN-DD-00301

inclFurnas Copper-Gold Project · copperGrade: 0.98Grade Unit: %Intercept: 28 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.98
Grade Unit
%
Intercept
28 m
From
425 m
To
453 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:425-453
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.98 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 27.4 %·m is weak (grade alone is exceptional; the better of the two is used).

Positive factors

  • 0.98 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.98”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.6Grade Unit: g/tIntercept: 28 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.6
Grade Unit
g/t
Intercept
28 m
From
425 m
To
453 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:425-453
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.6 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 16.8 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.60”

Context: incl

FURN-DD-00306Furnas Copper-Gold Project · copperGrade: 0.58Grade Unit: %Intercept: 75 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00306
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.58
Grade Unit
%
Intercept
75 m
From
169 m
To
244 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00306:169-244
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.58 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 43.5 %·m is weak (grade alone is strong; the better of the two is used).

Positive factors

  • 0.58 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.58”

Context: FURN-DD-00306

FURN-DD-00306Furnas Copper-Gold Project · goldGrade: 0.15Grade Unit: g/tIntercept: 75 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00306
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.15
Grade Unit
g/t
Intercept
75 m
From
169 m
To
244 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00306:169-244
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.15 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 11.3 g/t·m is weak (grade alone is below; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.15”

Context: FURN-DD-00306

FURN-DD-00306Furnas Copper-Gold Project · copperGrade: 0.63Grade Unit: %Intercept: 28 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00306
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.63
Grade Unit
%
Intercept
28 m
From
317 m
To
345 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00306:317-345
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.63 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 17.6 %·m is below (grade alone is strong; the better of the two is used).

Positive factors

  • 0.63 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.63”

Context: FURN-DD-00306

FURN-DD-00306Furnas Copper-Gold Project · goldGrade: 0.58Grade Unit: g/tIntercept: 28 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00306
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.58
Grade Unit
g/t
Intercept
28 m
From
317 m
To
345 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00306:317-345
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.58 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 16.2 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.58”

Context: FURN-DD-00306

FURN-DD-00308Furnas Copper-Gold Project · copperGrade: 0.64Grade Unit: %Intercept: 93 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00308
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.64
Grade Unit
%
Intercept
93 m
From
130 m
To
223 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00308:130-223
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.64 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 59.5 %·m is weak (grade alone is strong; the better of the two is used).

Positive factors

  • 0.64 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.64”

Context: FURN-DD-00308

FURN-DD-00308Furnas Copper-Gold Project · goldGrade: 0.8Grade Unit: g/tIntercept: 93 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00308
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.8
Grade Unit
g/t
Intercept
93 m
From
130 m
To
223 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00308:130-223
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.8 g/t gold is moderate against the default band [5, 2, 1, 0.3] g/t. Grade×width 74.4 g/t·m is moderate (grade alone is weak; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.80”

Context: FURN-DD-00308

FURN-DD-00312Furnas Copper-Gold Project · copperGrade: 1.18Grade Unit: %Intercept: 64 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00312
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.18
Grade Unit
%
Intercept
64 m
From
207 m
To
271 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00312:207-271
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.18 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 75.5 %·m is moderate (grade alone is exceptional; the better of the two is used).

Positive factors

  • 1.18 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.18”

Context: FURN-DD-00312

FURN-DD-00312Furnas Copper-Gold Project · goldGrade: 0.79Grade Unit: g/tIntercept: 64 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00312
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.79
Grade Unit
g/t
Intercept
64 m
From
207 m
To
271 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00312:207-271
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.79 g/t gold is moderate against the default band [5, 2, 1, 0.3] g/t. Grade×width 50.6 g/t·m is moderate (grade alone is weak; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.79”

Context: FURN-DD-00312

inclFurnas Copper-Gold Project · copperGrade: 1.39Grade Unit: %Intercept: 31 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.39
Grade Unit
%
Intercept
31 m
From
239 m
To
270 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:239-270
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.39 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 43.1 %·m is weak (grade alone is exceptional; the better of the two is used).

Positive factors

  • 1.39 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.39”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.81Grade Unit: g/tIntercept: 31 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.81
Grade Unit
g/t
Intercept
31 m
From
239 m
To
270 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:239-270
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.81 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 25.1 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.81”

Context: incl

FURN-DD-00315Furnas Copper-Gold Project · copperGrade: 0.9Grade Unit: %Intercept: 47 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00315
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.9
Grade Unit
%
Intercept
47 m
From
150 m
To
197 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00315:150-197
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.9 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 42.3 %·m is weak (grade alone is exceptional; the better of the two is used).

Positive factors

  • 0.9 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.90”

Context: FURN-DD-00315

FURN-DD-00315Furnas Copper-Gold Project · goldGrade: 0.64Grade Unit: g/tIntercept: 47 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00315
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.64
Grade Unit
g/t
Intercept
47 m
From
150 m
To
197 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00315:150-197
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.64 g/t gold is moderate against the default band [5, 2, 1, 0.3] g/t. Grade×width 30.1 g/t·m is moderate (grade alone is weak; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.64”

Context: FURN-DD-00315

FURN-DD-00320Furnas Copper-Gold Project · copperGrade: 0.83Grade Unit: %Intercept: 40 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00320
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.83
Grade Unit
%
Intercept
40 m
From
194 m
To
234 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00320:194-234
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.83 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 33.2 %·m is weak (grade alone is strong; the better of the two is used).

Positive factors

  • 0.83 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.83”

Context: FURN-DD-00320

FURN-DD-00320Furnas Copper-Gold Project · goldGrade: 0.75Grade Unit: g/tIntercept: 40 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00320
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.75
Grade Unit
g/t
Intercept
40 m
From
194 m
To
234 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00320:194-234
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.75 g/t gold is moderate against the default band [5, 2, 1, 0.3] g/t. Grade×width 30.0 g/t·m is moderate (grade alone is weak; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.75”

Context: FURN-DD-00320

FURN-DD-00321Furnas Copper-Gold Project · copperGrade: 0.47Grade Unit: %Intercept: 115 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00321
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.47
Grade Unit
%
Intercept
115 m
From
490 m
To
605 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00321:490-605
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.47 % copper is moderate against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 54.0 %·m is weak (grade alone is moderate; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.47”

Context: FURN-DD-00321

FURN-DD-00321Furnas Copper-Gold Project · goldGrade: 0.27Grade Unit: g/tIntercept: 115 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00321
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.27
Grade Unit
g/t
Intercept
115 m
From
490 m
To
605 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00321:490-605
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.27 g/t gold is moderate against the default band [5, 2, 1, 0.3] g/t. Grade×width 31.1 g/t·m is moderate (grade alone is below; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.27”

Context: FURN-DD-00321

inclFurnas Copper-Gold Project · copperGrade: 1.13Grade Unit: %Intercept: 8 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.13
Grade Unit
%
Intercept
8 m
From
564 m
To
572 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:564-572
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.13 % copper is exceptional against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 9.0 %·m is below (grade alone is exceptional; the better of the two is used).

Positive factors

  • 1.13 % copper is exceptional on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.13”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 0.49Grade Unit: g/tIntercept: 8 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.49
Grade Unit
g/t
Intercept
8 m
From
564 m
To
572 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:564-572
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.49 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 3.9 g/t·m is below (grade alone is weak; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.49”

Context: incl

FURN-DD-00326Furnas Copper-Gold Project · copperGrade: 0.69Grade Unit: %Intercept: 43 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00326
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.69
Grade Unit
%
Intercept
43 m
From
150 m
To
193 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00326:150-193
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.69 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 29.7 %·m is weak (grade alone is strong; the better of the two is used).

Positive factors

  • 0.69 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.69”

Context: FURN-DD-00326

FURN-DD-00326Furnas Copper-Gold Project · goldGrade: 0.67Grade Unit: g/tIntercept: 43 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00326
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.67
Grade Unit
g/t
Intercept
43 m
From
150 m
To
193 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00326:150-193
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.67 g/t gold is weak against the default band [5, 2, 1, 0.3] g/t. Grade×width 28.8 g/t·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.67”

Context: FURN-DD-00326

inclFurnas Copper-Gold Project · copperGrade: 0.83Grade Unit: %Intercept: 10 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.83
Grade Unit
%
Intercept
10 m
From
164 m
To
174 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:164-174
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.83 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 8.3 %·m is below (grade alone is strong; the better of the two is used).

Positive factors

  • 0.83 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.83”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 1.02Grade Unit: g/tIntercept: 10 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.02
Grade Unit
g/t
Intercept
10 m
From
164 m
To
174 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:164-174
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.02 g/t gold is moderate against the default band [5, 2, 1, 0.3] g/t. Grade×width 10.2 g/t·m is weak (grade alone is moderate; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.02”

Context: incl

FURN-DD-00329Furnas Copper-Gold Project · copperGrade: 0.48Grade Unit: %Intercept: 24 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00329
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.48
Grade Unit
%
Intercept
24 m
From
213 m
To
237 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00329:213-237
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.48 % copper is moderate against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 11.5 %·m is below (grade alone is moderate; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.48”

Context: FURN-DD-00329

FURN-DD-00329Furnas Copper-Gold Project · goldGrade: 0.29Grade Unit: g/tIntercept: 24 mView all details
Link to this fact

Identity

Hole ID
FURN-DD-00329
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.29
Grade Unit
g/t
Intercept
24 m
From
213 m
To
237 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
FURN-DD-00329:213-237
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.29 g/t gold is below against the default band [5, 2, 1, 0.3] g/t. Grade×width 7.0 g/t·m is below.

Negative factors

  • 0.29 g/t gold is below the weak threshold (0.3 g/t) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.29”

Context: FURN-DD-00329

inclFurnas Copper-Gold Project · copperGrade: 0.59Grade Unit: %Intercept: 8 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
copper
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
0.59
Grade Unit
%
Intercept
8 m
From
312 m
To
320 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:312-320
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.59 % copper is strong against the iocg deposit band [0.9, 0.5, 0.3, 0.2] %. Grade×width 4.7 %·m is below (grade alone is strong; the better of the two is used).

Positive factors

  • 0.59 % copper is strong on the iocg deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.59”

Context: incl

inclFurnas Copper-Gold Project · goldGrade: 1.24Grade Unit: g/tIntercept: 8 mView all details
Link to this fact

Identity

Hole ID
incl
Project
Furnas Copper-Gold Project
Commodity
gold
Region
brazil
Reported Region
Pará State, Brazil
Ticker
ERO

Geometry

Grade
1.24
Grade Unit
g/t
Intercept
8 m
From
312 m
To
320 m

Classification

Deposit Type
iocg
Sample Type
drill
Group ID
incl:312-320
Mining Method
mixed

Location

CRS
unknown

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2025-09-18T00:00:00.000Z

Reasoning: Expanded from assay table. 1.24 g/t gold is moderate against the default band [5, 2, 1, 0.3] g/t. Grade×width 9.9 g/t·m is below (grade alone is moderate; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.24”

Context: incl

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.