# Ero Copper Intercepts 115 Meters at 0.98% CuEq&amp;\#xB9; in Deepest Hole Drilled to Date at Furnas Copper-Gold Project - Phase 2 Drill Program to be Completed in Early Q4 2025

Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e

Original source: https://money.tmx.com/en/quote/ERO/news/7336831072685594/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat

Publisher: tmx

Original announcement: 2025-09-18T11:00:00.000Z

Analysis by Minestarters Atlas

Atlas analysis published: Unknown date

Atlas analysis updated: Unknown date

- 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

Narrative sentiment: 0.80 · Bullish

## Minestarters Atlas 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 factor: Significant down-dip extension of high-grade mineralization to 950m, well beyond previous limits.

- Positive factor: Multiple long, high-grade intercepts, including 115m at 0.98% CuEq and 103m at 1.26% CuEq.

- Positive factor: Results demonstrate continuity within high-grade zones and support future resource conversion.

- Positive factor: NI 43-101 compliant reporting with detailed QA/QC procedures and QP sign-off.

- Positive factor: Phase 2 drill program is ahead of schedule, indicating efficient project advancement.

Facts used in scoring: 202

## Classification and evidence

No classification tags are available.

## Extracted facts

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

## Drill Results (202)

### FURN-DD-00280

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-0)

Furnas Copper-Gold Project · copper

Historical result

Needs review: historical\_restatement

#### 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 factor: Strong copper equivalent grade for IOCG deposit type.

- Positive factor: Significant intercept length.

- Positive factor: High grade-thickness product \(51.2 %Cu·m\).

Evidence · table

> 0.98

Context: 65

### FURN-DD-00280

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-1)

Furnas Copper-Gold Project · gold

#### 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 factor: Moderate gold grade for IOCG deposit type.

- Positive factor: Significant intercept length.

Evidence · table

> 0.40

Context: 65

### FURN-DD-00280

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-2)

Furnas Copper-Gold Project · copper

Historical result

Needs review: historical\_restatement

#### 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 factor: Exceptional copper equivalent grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

- Positive factor: High grade-thickness product \(27.2 %Cu·m\).

Evidence · table

> 1.11

Context: 32

### FURN-DD-00280

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-3)

Furnas Copper-Gold Project · gold

#### 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 factor: Strong gold grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

Evidence · table

> 0.54

Context: 32

### FURN-DD-00281

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-4)

Furnas Copper-Gold Project · copper

#### 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 factor: Strong copper equivalent grade for IOCG deposit type.

- Positive factor: Very long intercept length.

- Positive factor: High grade-thickness product \(70.0 %Cu·m\).

Evidence · table

> 0.82

Context: 111

### FURN-DD-00281

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-5)

Furnas Copper-Gold Project · gold

#### 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 factor: Moderate gold grade for IOCG deposit type.

- Positive factor: Very long intercept length.

Evidence · table

> 0.40

Context: 111

### FURN-DD-00281

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-6)

Furnas Copper-Gold Project · copper

Historical result

Needs review: historical\_restatement

#### 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 factor: Exceptional copper equivalent grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

- Positive factor: High grade-thickness product \(16.2 %Cu·m\).

Evidence · table

> 1.11

Context: 20

### FURN-DD-00281

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-7)

Furnas Copper-Gold Project · gold

#### 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 factor: Strong gold grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

Evidence · table

> 0.62

Context: 20

### FURN-DD-00283

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-8)

Furnas Copper-Gold Project · copper

#### 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 factor: Exceptional copper equivalent grade for IOCG deposit type.

- Positive factor: Very long intercept length.

- Positive factor: High grade-thickness product \(74.7 %Cu·m\).

Evidence · table

> 0.95

Context: 93

### FURN-DD-00283

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-9)

Furnas Copper-Gold Project · gold

#### 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 factor: Moderate gold grade for IOCG deposit type.

- Positive factor: Very long intercept length.

Evidence · table

> 0.32

Context: 93

### FURN-DD-00283

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-10)

Furnas Copper-Gold Project · copper

#### 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 factor: Exceptional copper equivalent grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

- Positive factor: High grade-thickness product \(26.7 %Cu·m\).

Evidence · table

> 1.73

Context: 18

### FURN-DD-00283

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-11)

Furnas Copper-Gold Project · gold

#### 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 factor: Moderate gold grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

Evidence · table

> 0.46

Context: 18

### FURN-DD-00283

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-12)

Furnas Copper-Gold Project · copper

#### 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 factor: Exceptional copper equivalent grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

- Positive factor: High grade-thickness product \(30.5 %Cu·m\).

Evidence · table

> 1.67

Context: 23

### FURN-DD-00283

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-13)

Furnas Copper-Gold Project · gold

Historical result

Needs review: historical\_restatement

#### 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 factor: Strong gold grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

Evidence · table

> 0.71

Context: 23

### FURN-DD-00291

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-14)

Furnas Copper-Gold Project · copper

#### 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 factor: Strong copper equivalent grade for IOCG deposit type.

- Positive factor: Very long intercept length.

- Positive factor: High grade-thickness product \(48.7 %Cu·m\).

Evidence · table

> 0.62

Context: 97

### FURN-DD-00291

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-15)

Furnas Copper-Gold Project · gold

#### 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 factor: Weak gold grade for IOCG deposit type.

- Positive factor: Very long intercept length.

Evidence · table

> 0.25

Context: 97

### FURN-DD-00291

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-16)

Furnas Copper-Gold Project · copper

#### 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 factor: Exceptional copper equivalent grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

- Positive factor: High grade-thickness product \(15.4 %Cu·m\).

Evidence · table

> 1.10

Context: 17

### FURN-DD-00291

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-17)

Furnas Copper-Gold Project · gold

#### 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 factor: Moderate gold grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

Evidence · table

> 0.35

Context: 17

### FURN-DD-00291

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-18)

Furnas Copper-Gold Project · copper

#### 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 factor: Exceptional copper equivalent grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

- Positive factor: High grade-thickness product \(14.4 %Cu·m\).

Evidence · table

> 0.94

Context: 19

### FURN-DD-00291

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-19)

Furnas Copper-Gold Project · gold

#### 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 factor: Moderate gold grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

Evidence · table

> 0.39

Context: 19

### FURN-DD-00292

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-20)

Furnas Copper-Gold Project · copper

#### 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 factor: Strong copper equivalent grade for IOCG deposit type.

- Positive factor: Good intercept length.

- Positive factor: High grade-thickness product \(29.7 %Cu·m\).

Evidence · table

> 0.84

Context: 52

### FURN-DD-00292

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-21)

Furnas Copper-Gold Project · gold

Historical result

Needs review: historical\_restatement

#### 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 factor: Strong gold grade for IOCG deposit type.

- Positive factor: Good intercept length.

Evidence · table

> 0.56

Context: 52

### FURN-DD-00292

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-22)

Furnas Copper-Gold Project · copper

Historical result

Needs review: historical\_restatement

#### 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 factor: Exceptional copper equivalent grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

- Positive factor: High grade-thickness product \(21.2 %Cu·m\).

Evidence · table

> 0.91

Context: 36

### FURN-DD-00292

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-23)

Furnas Copper-Gold Project · gold

#### 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 factor: Strong gold grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

Evidence · table

> 0.68

Context: 36

### FURN-DD-00292

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-24)

Furnas Copper-Gold Project · copper

#### 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 factor: Exceptional copper equivalent grade for IOCG deposit type.

- Positive factor: Moderate grade-thickness product \(8.1 %Cu·m\).

Evidence · table

> 1.08

Context: 13

### FURN-DD-00292

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-25)

Furnas Copper-Gold Project · gold

#### 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 factor: Strong gold grade for IOCG deposit type.

Evidence · table

> 0.95

Context: 13

### FURN-DD-00294

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-26)

Furnas Copper-Gold Project · copper

#### 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 factor: Strong copper equivalent grade for IOCG deposit type.

- Positive factor: Very long intercept length.

- Positive factor: High grade-thickness product \(46.2 %Cu·m\).

Evidence · table

> 0.75

Context: 83

### FURN-DD-00294

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-27)

Furnas Copper-Gold Project · gold

#### 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 factor: Moderate gold grade for IOCG deposit type.

- Positive factor: Very long intercept length.

Evidence · table

> 0.39

Context: 83

### FURN-DD-00294

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-28)

Furnas Copper-Gold Project · copper

#### 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 factor: Strong copper equivalent grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

- Positive factor: High grade-thickness product \(29.3 %Cu·m\).

Evidence · table

> 0.85

Context: 47

### FURN-DD-00294

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-29)

Furnas Copper-Gold Project · gold

#### 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 factor: Moderate gold grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

Evidence · table

> 0.46

Context: 47

### FURN-DD-00296

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-30)

Furnas Copper-Gold Project · copper

#### 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 factor: Moderate copper equivalent grade for IOCG deposit type.

- Positive factor: Very long intercept length.

- Positive factor: High grade-thickness product \(34.1 %Cu·m\).

Evidence · table

> 0.48

Context: 81

### FURN-DD-00296

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-31)

Furnas Copper-Gold Project · gold

#### 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 factor: Weak gold grade for IOCG deposit type.

- Positive factor: Very long intercept length.

Evidence · table

> 0.13

Context: 81

### FURN-DD-00296

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-32)

Furnas Copper-Gold Project · copper

#### 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 factor: Exceptional copper equivalent grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

- Positive factor: High grade-thickness product \(16.2 %Cu·m\).

Evidence · table

> 1.00

Context: 18

### FURN-DD-00296

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-33)

Furnas Copper-Gold Project · gold

#### 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 factor: Weak gold grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

Evidence · table

> 0.23

Context: 18

### FURN-DD-00297

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-34)

Furnas Copper-Gold Project · copper

#### 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 factor: Exceptional copper equivalent grade for IOCG deposit type.

- Positive factor: Very long intercept length.

- Positive factor: High grade-thickness product \(83.9 %Cu·m\).

Evidence · table

> 1.22

Context: 92

### FURN-DD-00297

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-35)

Furnas Copper-Gold Project · gold

#### 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 factor: Strong gold grade for IOCG deposit type.

- Positive factor: Very long intercept length.

Evidence · table

> 0.65

Context: 92

### FURN-DD-00297

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-36)

Furnas Copper-Gold Project · copper

#### 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 factor: Exceptional copper equivalent grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

- Positive factor: High grade-thickness product \(49.0 %Cu·m\).

Evidence · table

> 1.18

Context: 47

### FURN-DD-00297

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-37)

Furnas Copper-Gold Project · gold

#### 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 factor: Moderate gold grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

Evidence · table

> 0.30

Context: 47

### FURN-DD-00297

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-38)

Furnas Copper-Gold Project · copper

#### 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 factor: Exceptional copper equivalent grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

- Positive factor: High grade-thickness product \(33.1 %Cu·m\).

Evidence · table

> 1.81

Context: 30

### FURN-DD-00297

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-39)

Furnas Copper-Gold Project · gold

#### 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 factor: Exceptional gold grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

Evidence · table

> 1.48

Context: 30

### FURN-DD-00298

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-40)

Furnas Copper-Gold Project · copper

#### 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 factor: Exceptional copper equivalent grade for IOCG deposit type.

- Positive factor: Very long intercept length.

- Positive factor: High grade-thickness product \(84.6 %Cu·m\).

Evidence · table

> 1.17

Context: 94

### FURN-DD-00298

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-41)

Furnas Copper-Gold Project · gold

#### 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 factor: Strong gold grade for IOCG deposit type.

- Positive factor: Very long intercept length.

Evidence · table

> 0.57

Context: 94

### FURN-DD-00298

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-42)

Furnas Copper-Gold Project · copper

#### 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 factor: Exceptional copper equivalent grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

- Positive factor: High grade-thickness product \(34.8 %Cu·m\).

Evidence · table

> 1.64

Context: 26

### FURN-DD-00298

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-43)

Furnas Copper-Gold Project · gold

#### 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 factor: Strong gold grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

Evidence · table

> 0.63

Context: 26

### FURN-DD-00298

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-44)

Furnas Copper-Gold Project · copper

#### 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 factor: Exceptional copper equivalent grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

- Positive factor: High grade-thickness product \(21.8 %Cu·m\).

Evidence · table

> 1.46

Context: 22

### FURN-DD-00298

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-45)

Furnas Copper-Gold Project · gold

Historical result

Needs review: historical\_restatement

#### 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 factor: Strong gold grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

Evidence · table

> 0.98

Context: 22

### FURN-DD-00299

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-46)

Furnas Copper-Gold Project · copper

#### 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 factor: Exceptional copper equivalent grade for IOCG deposit type.

- Positive factor: Good intercept length.

- Positive factor: High grade-thickness product \(46.8 %Cu·m\).

Evidence · table

> 1.03

Context: 62

### FURN-DD-00299

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-47)

Furnas Copper-Gold Project · gold

#### 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 factor: Strong gold grade for IOCG deposit type.

- Positive factor: Good intercept length.

Evidence · table

> 0.57

Context: 62

### FURN-DD-00299

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-48)

Furnas Copper-Gold Project · copper

#### 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 factor: Exceptional copper equivalent grade for IOCG deposit type.

- Positive factor: Moderate grade-thickness product \(14.7 %Cu·m\).

Evidence · table

> 1.42

Context: 16

### FURN-DD-00299

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-49)

Furnas Copper-Gold Project · gold

#### 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 factor: Exceptional gold grade for IOCG deposit type.

Evidence · table

> 1.05

Context: 16

### FURN-DD-00302

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-50)

Furnas Copper-Gold Project · copper

#### 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 factor: Exceptional copper equivalent grade for IOCG deposit type.

- Positive factor: Good intercept length.

- Positive factor: High grade-thickness product \(37.5 %Cu·m\).

Evidence · table

> 0.92

Context: 51

### FURN-DD-00302

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-51)

Furnas Copper-Gold Project · gold

#### 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 factor: Moderate gold grade for IOCG deposit type.

- Positive factor: Good intercept length.

Evidence · table

> 0.38

Context: 51

### FURN-DD-00302

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-52)

Furnas Copper-Gold Project · copper

#### 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 factor: Exceptional copper equivalent grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

- Positive factor: High grade-thickness product \(25.7 %Cu·m\).

Evidence · table

> 1.17

Context: 27

### FURN-DD-00302

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-53)

Furnas Copper-Gold Project · gold

#### 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 factor: Moderate gold grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

Evidence · table

> 0.42

Context: 27

### FURN-DD-00303

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-54)

Furnas Copper-Gold Project · copper

#### 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 factor: Exceptional copper equivalent grade for IOCG deposit type.

- Positive factor: Good intercept length.

- Positive factor: High grade-thickness product \(60.8 %Cu·m\).

Evidence · table

> 1.52

Context: 46

### FURN-DD-00303

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-55)

Furnas Copper-Gold Project · gold

#### 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 factor: Moderate gold grade for IOCG deposit type.

- Positive factor: Good intercept length.

Evidence · table

> 0.44

Context: 46

### FURN-DD-00303

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-56)

Furnas Copper-Gold Project · copper

#### 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 factor: Exceptional copper equivalent grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

- Positive factor: High grade-thickness product \(48.8 %Cu·m\).

Evidence · table

> 1.91

Context: 29

### FURN-DD-00303

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-57)

Furnas Copper-Gold Project · gold

#### 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 factor: Strong gold grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

Evidence · table

> 0.50

Context: 29

### FURN-DD-00304

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-58)

Furnas Copper-Gold Project · copper

#### 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 factor: Exceptional copper equivalent grade for IOCG deposit type.

- Positive factor: Very long intercept length.

- Positive factor: High grade-thickness product \(70.3 %Cu·m\).

Evidence · table

> 1.45

Context: 74

### FURN-DD-00304

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-59)

Furnas Copper-Gold Project · gold

#### 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 factor: Exceptional gold grade for IOCG deposit type.

- Positive factor: Very long intercept length.

Evidence · table

> 1.04

Context: 74

### FURN-DD-00304

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-60)

Furnas Copper-Gold Project · copper

#### 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 factor: Exceptional copper equivalent grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

- Positive factor: High grade-thickness product \(50.5 %Cu·m\).

Evidence · table

> 1.67

Context: 50

### FURN-DD-00304

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-61)

Furnas Copper-Gold Project · gold

#### 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 factor: Exceptional gold grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

Evidence · table

> 1.40

Context: 50

### FURN-DD-00305

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-62)

Furnas Copper-Gold Project · copper

#### 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 factor: Exceptional copper equivalent grade for IOCG deposit type.

- Positive factor: Very long intercept length.

- Positive factor: High grade-thickness product \(90.6 %Cu·m\).

Evidence · table

> 1.26

Context: 103

### FURN-DD-00305

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-63)

Furnas Copper-Gold Project · gold

#### 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 factor: Strong gold grade for IOCG deposit type.

- Positive factor: Very long intercept length.

Evidence · table

> 0.80

Context: 103

### FURN-DD-00305

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-64)

Furnas Copper-Gold Project · copper

#### 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 factor: Exceptional copper equivalent grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

- Positive factor: High grade-thickness product \(28.1 %Cu·m\).

Evidence · table

> 1.60

Context: 27

### FURN-DD-00305

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-65)

Furnas Copper-Gold Project · gold

#### 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 factor: Exceptional gold grade for IOCG deposit type.

- Positive factor: Good intercept length for a sub-interval.

Evidence · table

> 1.18

Context: 27

### FURN-DD-00307

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-66)

Furnas Copper-Gold Project · copper

#### 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 factor: Strong copper grade for IOCG deposit type.

- Positive factor: Good intercept length.

- Positive factor: Moderate grade-thickness product \(13.8 %Cu·m\).

Evidence · table

> 0.69

Context: 20

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-67)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.85 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.85

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-68)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.54

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-69)

Furnas Copper-Gold Project · copper

Historical result

Needs review: historical\_restatement

#### 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 factor: 0.81 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.81

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-70)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.62

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-71)

Furnas Copper-Gold Project · copper

#### 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 factor: 1.51 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.51

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-72)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.46

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-73)

Furnas Copper-Gold Project · copper

#### 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 factor: 1.33 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.33

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-74)

Furnas Copper-Gold Project · gold

Historical result

Needs review: historical\_restatement

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.71

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-75)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.93 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.93

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-76)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.35

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-77)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.75 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.75

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-78)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.39

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-79)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.59 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.59

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-80)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.68

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-81)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.63 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.63

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-82)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.95

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-83)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.63 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.63

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-84)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.46

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-85)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.89 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.89

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-86)

Furnas Copper-Gold Project · gold

#### 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 factor: 0.23 g/t gold is below the weak threshold \(0.3 g/t\) on the default band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.23

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-87)

Furnas Copper-Gold Project · copper

#### 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 factor: 1.04 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.04

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-88)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.30

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-89)

Furnas Copper-Gold Project · copper

#### 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 factor: 1.1 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.10

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-90)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.48

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-91)

Furnas Copper-Gold Project · copper

#### 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 factor: 1.34 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.34

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-92)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.63

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-93)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.99 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.99

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-94)

Furnas Copper-Gold Project · gold

Historical result

Needs review: historical\_restatement

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.98

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-95)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.92 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.92

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-96)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.05

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-97)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.97 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.97

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-98)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.42

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-99)

Furnas Copper-Gold Project · copper

#### 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 factor: 1.67 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.67

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-100)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.50

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-101)

Furnas Copper-Gold Project · copper

#### 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 factor: 1 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.00

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-102)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.40

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-103)

Furnas Copper-Gold Project · copper

#### 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 factor: 1.04 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.04

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-104)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.18

Context: incl

### FURN-DD-00307

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-105)

Furnas Copper-Gold Project · gold

#### 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 factor: 0.2 g/t gold is below the weak threshold \(0.3 g/t\) on the default band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.20

Context: FURN-DD-00307

### FURN-DD-00307

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-106)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.63 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.63

Context: FURN-DD-00307

### FURN-DD-00307

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-107)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.35

Context: FURN-DD-00307

### FURN-DD-00309

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-108)

Furnas Copper-Gold Project · copper

#### 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 factor: 1.28 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.28

Context: FURN-DD-00309

### FURN-DD-00309

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-109)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.24

Context: FURN-DD-00309

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-110)

Furnas Copper-Gold Project · copper

#### 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 factor: 1.86 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.86

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-111)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.31

Context: incl

### FURN-DD-00310

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-112)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.8 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.80

Context: FURN-DD-00310

### FURN-DD-00310

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-113)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.36

Context: FURN-DD-00310

### FURN-DD-00311

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-114)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.74 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.74

Context: FURN-DD-00311

### FURN-DD-00311

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-115)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.45

Context: FURN-DD-00311

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-116)

Furnas Copper-Gold Project · copper

Historical result

Needs review: historical\_restatement

#### 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 factor: 0.88 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.88

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-117)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.53

Context: incl

### FURN-DD-00313

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-118)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.61 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.61

Context: FURN-DD-00313

### FURN-DD-00313

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-119)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.40

Context: FURN-DD-00313

### FURN-DD-00314

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-120)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.72 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.72

Context: FURN-DD-00314

### FURN-DD-00314

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-121)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.42

Context: FURN-DD-00314

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-122)

Furnas Copper-Gold Project · copper

#### 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 factor: 1.22 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.22

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-123)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.79

Context: incl

### FURN-DD-00316

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-124)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.67 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.67

Context: FURN-DD-00316

### FURN-DD-00316

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-125)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.36

Context: FURN-DD-00316

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-126)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.74 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.74

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-127)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.67

Context: incl

### FURN-DD-00318

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-128)

Furnas Copper-Gold Project · copper

#### 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 factor: 1.23 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.23

Context: FURN-DD-00318

### FURN-DD-00318

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-129)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.52

Context: FURN-DD-00318

### FURN-DD-00319

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-130)

Furnas Copper-Gold Project · copper

#### 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 factor: 1.65 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.65

Context: FURN-DD-00319

### FURN-DD-00319

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-131)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.38

Context: FURN-DD-00319

### FURN-DD-00322

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-132)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.76 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.76

Context: FURN-DD-00322

### FURN-DD-00322

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-133)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.47

Context: FURN-DD-00322

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-134)

Furnas Copper-Gold Project · copper

Historical result

Needs review: historical\_restatement

#### 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 factor: 0.81 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.81

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-135)

Furnas Copper-Gold Project · gold

Historical result

Needs review: historical\_restatement

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.56

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-136)

Furnas Copper-Gold Project · copper

Historical result

Needs review: historical\_restatement

#### 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 factor: 0.91 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.91

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-137)

Furnas Copper-Gold Project · gold

Historical result

Needs review: historical\_restatement

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.71

Context: incl

### FURN-DD-00323

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-138)

Furnas Copper-Gold Project · copper

Historical result

Needs review: historical\_restatement

#### 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 factor: 0.91 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.91

Context: FURN-DD-00323

### FURN-DD-00323

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-139)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.52

Context: FURN-DD-00323

### FURN-DD-00324

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-140)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.8 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.80

Context: FURN-DD-00324

### FURN-DD-00324

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-141)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.59

Context: FURN-DD-00324

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-142)

Furnas Copper-Gold Project · copper

#### 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 factor: 1.14 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.14

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-143)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.92

Context: incl

### FURN-DD-00325

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-144)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.72 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.72

Context: FURN-DD-00325

### FURN-DD-00325

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-145)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.43

Context: FURN-DD-00325

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-146)

Furnas Copper-Gold Project · copper

#### 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 factor: 1.13 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.13

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-147)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.73

Context: incl

### FURN-DD-00327

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-148)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.68 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.68

Context: FURN-DD-00327

### FURN-DD-00327

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-149)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.42

Context: FURN-DD-00327

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-150)

Furnas Copper-Gold Project · copper

#### 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 factor: 1.02 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.02

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-151)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.53

Context: incl

### FURN-DD-00328

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-152)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.7 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.70

Context: FURN-DD-00328

### FURN-DD-00328

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-153)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.47

Context: FURN-DD-00328

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-154)

Furnas Copper-Gold Project · copper

#### 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 factor: 1.06 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.06

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-155)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.72

Context: incl

### FURN-DD-00330

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-156)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.82 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.82

Context: FURN-DD-00330

### FURN-DD-00330

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-157)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.50

Context: FURN-DD-00330

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-158)

Furnas Copper-Gold Project · copper

Historical result

Needs review: historical\_restatement

#### 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 factor: 0.98 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.98

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-159)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.54

Context: incl

### FURN-DD-00331

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-160)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.61 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.61

Context: FURN-DD-00331

### FURN-DD-00331

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-161)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.92

Context: FURN-DD-00331

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-162)

Furnas Copper-Gold Project · copper

#### 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 factor: 1.27 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.27

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-163)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.77

Context: incl

### FURN-DD-00295

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-164)

Furnas Copper-Gold Project · copper

Historical result

Needs review: historical\_restatement

#### 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 factor: 0.88 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.88

Context: FURN-DD-00295

### FURN-DD-00295

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-165)

Furnas Copper-Gold Project · gold

#### 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 factor: 0.23 g/t gold is below the weak threshold \(0.3 g/t\) on the default band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.23

Context: FURN-DD-00295

### FURN-DD-00295

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-166)

Furnas Copper-Gold Project · copper

Historical result

Needs review: historical\_restatement

#### 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 factor: 0.56 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.56

Context: FURN-DD-00295

### FURN-DD-00295

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-167)

Furnas Copper-Gold Project · gold

Historical result

Needs review: historical\_restatement

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.91

Context: FURN-DD-00295

### FURN-DD-00300

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-168)

Furnas Copper-Gold Project · copper

#### 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 factor: 1.02 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.02

Context: FURN-DD-00300

### FURN-DD-00300

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-169)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.36

Context: FURN-DD-00300

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-170)

Furnas Copper-Gold Project · copper

#### 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 factor: 1.67 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.67

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-171)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.49

Context: incl

### FURN-DD-00301

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-172)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.72 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.72

Context: FURN-DD-00301

### FURN-DD-00301

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-173)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.45

Context: FURN-DD-00301

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-174)

Furnas Copper-Gold Project · copper

Historical result

Needs review: historical\_restatement

#### 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 factor: 0.98 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.98

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-175)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.60

Context: incl

### FURN-DD-00306

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-176)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.58 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.58

Context: FURN-DD-00306

### FURN-DD-00306

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-177)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.15

Context: FURN-DD-00306

### FURN-DD-00306

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-178)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.63 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.63

Context: FURN-DD-00306

### FURN-DD-00306

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-179)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.58

Context: FURN-DD-00306

### FURN-DD-00308

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-180)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.64 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.64

Context: FURN-DD-00308

### FURN-DD-00308

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-181)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.80

Context: FURN-DD-00308

### FURN-DD-00312

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-182)

Furnas Copper-Gold Project · copper

#### 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 factor: 1.18 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.18

Context: FURN-DD-00312

### FURN-DD-00312

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-183)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.79

Context: FURN-DD-00312

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-184)

Furnas Copper-Gold Project · copper

#### 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 factor: 1.39 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.39

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-185)

Furnas Copper-Gold Project · gold

Historical result

Needs review: historical\_restatement

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.81

Context: incl

### FURN-DD-00315

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-186)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.9 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.90

Context: FURN-DD-00315

### FURN-DD-00315

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-187)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.64

Context: FURN-DD-00315

### FURN-DD-00320

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-188)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.83 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.83

Context: FURN-DD-00320

### FURN-DD-00320

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-189)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.75

Context: FURN-DD-00320

### FURN-DD-00321

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-190)

Furnas Copper-Gold Project · copper

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.47

Context: FURN-DD-00321

### FURN-DD-00321

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-191)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.27

Context: FURN-DD-00321

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-192)

Furnas Copper-Gold Project · copper

#### 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 factor: 1.13 % copper is exceptional on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.13

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-193)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.49

Context: incl

### FURN-DD-00326

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-194)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.69 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.69

Context: FURN-DD-00326

### FURN-DD-00326

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-195)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.67

Context: FURN-DD-00326

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-196)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.83 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.83

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-197)

Furnas Copper-Gold Project · gold

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 1.02

Context: incl

### FURN-DD-00329

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-198)

Furnas Copper-Gold Project · copper

#### 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 factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.48

Context: FURN-DD-00329

### FURN-DD-00329

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-199)

Furnas Copper-Gold Project · gold

#### 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 factor: 0.29 g/t gold is below the weak threshold \(0.3 g/t\) on the default band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.29

Context: FURN-DD-00329

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-200)

Furnas Copper-Gold Project · copper

#### 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 factor: 0.59 % copper is strong on the iocg deposit band.

- Negative factor: Scored from rubric bands during table expansion, not from document context.

Evidence · table

> 0.59

Context: incl

### incl

[Link to this fact](https://atlas-staging.minestarters.com/news/ero-copper-intercepts-115-meters-at-0-98-cueq-xb9-in-deepest-hole-drilled-to-dat--61b23367-feee-40b7-a1be-217cdcd7591e#fact-drill-facts-201)

Furnas Copper-Gold Project · gold

#### 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 factor: 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.
