# Edge Copper Initial Drilling Confirms Broad Oxide Copper Mineralization and Expansion Potential at Zonia

Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/edge-copper-initial-drilling-confirms-broad-oxide-copper-mineralization-and-expa--d8403e61-5da1-4941-b0c2-d36f6eef3099

Original source: https://money.tmx.com/en/quote/EDCU/news/6751543300108455/edge-copper-initial-drilling-confirms-broad-oxide-copper-mineralization-and-expa

Publisher: tmx

Original announcement: 2026-05-19T14:24:00.000Z

Analysis by Minestarters Atlas

Atlas analysis published: Unknown date

Atlas analysis updated: Unknown date

- Company: Edge Copper Corporation

- Ticker: EDCU

- Exchange: TSX

- Region: Arizona

- Primary commodity: Copper

- Secondary commodities: None reported

- Document categories: Drill results, Resource update, Metallurgy

- Extracted: 2026-08-24 05:26:38 UTC

Narrative sentiment: 0.70 · Bullish

## Minestarters Atlas summary

Edge Copper has reported initial assay results from its Zonia Copper Project in Arizona, confirming broad, near-surface oxide copper mineralization. The drilling program, which includes both infill and step-out holes, aims to increase confidence in the existing resource model and evaluate potential for significant resource growth. The company also announced an ongoing metallurgical drilling program and plans for a resource update in Q4 2026.

Reasoning: Edge Copper's initial drill results confirm broad, near-surface oxide copper mineralization at Zonia, with several intercepts showing significant widths, including a 189.28m interval. While individual grades are generally weak to moderate for a porphyry system, the extensive widths and the program's focus on resource expansion and conversion are positive. The company also disclosed a metallurgical program and plans for a resource update, indicating active project development.

- Positive factor: Broad widths of mineralization

- Positive factor: Confirmation of oxide copper mineralization

- Positive factor: Expansion potential identified

- Positive factor: High QA/QC standards

- Positive factor: QP sign-off

- Positive factor: Clear cut-off grade disclosure

- Positive factor: Program includes step-out drilling for growth

- Positive factor: Metallurgical program underway

- Negative factor: Grades are generally weak to moderate for porphyry copper

- Negative factor: Grade-thickness products are mostly below weak thresholds

Facts used in scoring: 16

## Classification and evidence

**True Width Disclosed**

Polarity: positive

Definition: Actual thickness perpendicular to structure is stated, not just downhole length.

Why it applies: The company states that 'intervals reported in this news release are interpreted to represent approximate true thicknesses.'

Evidence · text

> intervals reported in this news release are interpreted to represent approximate true thicknesses.

**QA/QC Disclosed**

Polarity: positive

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

Why it applies: The release details industry-standard QA/QC procedures, including certified reference materials, blanks, and duplicates, and mentions an accredited laboratory and a Qualified Person sign-off.

Evidence · text

> All drill samples were collected under the supervision of the Company's geological staff in accordance with industry-standard quality assurance and quality control \("QA/QC"\) procedures. Samples are from HQ-diameter core. Core is scanned and logged by the Company's geology team before being cut. Half-core HQ samples are prepared for assay and the remaining material is retained at site for future reference. The Company's QA/QC program includes the insertion of certified reference materials, blanks and duplicate samples at regular intervals within the sample stream. The Company also conducts ongoing review of laboratory QA/QC performance to ensure analytical reliability and accuracy. Assay samples were picked up directly from site by Skyline Assayers and Laboratories \("Skyline"\) and transported to Skyline's laboratory facility in Tucson, Arizona for preparation and analysis. Skyline is accredited and independent of the Company. Sample preparation included drying, crushing, splitting and pulverizing prior to analysis. Copper assays were determined using Skyline's single-element assay method, consisting of three-acid digestion followed by atomic absorption spectroscopy \(AAS\) determination for total copper. Significant intervals reported in this news release were calculated using a 0.10% CuT cut-off. All drill core is oriented where possible. Drill holes in the current program were drilled at inclinations of approximately -45 to -52 degrees and generally oriented towards the southeast, broadly orthogonal to the interpreted strike and dip of the mineralized system, associated foliation and the major bounding fault structures. Based on the current geological interpretation and drill geometry, intervals reported in this news release are interpreted to represent approximate true thicknesses. Qualified Person The scientific and technical information contained in this news release has been approved by Patrick B. Redmond, Ph.D., P.Geo., a consultant to the Company, who is a Qualified Person as defined by National Instrument 43-101 - Standards of Disclosure for Mineral Projects. Dr. Redmond has verified the technical data supporting this news release by reviewing assay data, QA/QC results, drill logs, sampling records and drill hole collar/survey information.

**Cut-off Disclosed**

Polarity: positive

Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: The release explicitly states that 'Significant intervals reported in this news release were calculated using a 0.10% CuT cut-off.'

Evidence · text

> Significant intervals reported in this news release were calculated using a 0.10% CuT cut-off.

**Step-Out Extension**

Polarity: positive

Definition: Mineralization extended beyond the previously known limit.

Why it applies: The drill program includes 'step-out drilling designed to test for mineralization along strike to the northeast and southwest, and lateral extensions'.

Evidence · text

> step-out drilling is designed to test for mineralization along strike to the northeast and southwest, and lateral extensions toward interpreted bounding structures.

**Infill Drilling**

Polarity: neutral

Definition: Confirmatory drilling to raise resource confidence, not new discovery.

Why it applies: The program includes 'Infill drilling is designed to increase confidence in the existing resource model and support conversion of Inferred Mineral Resources to the Indicated category'.

Evidence · text

> Infill drilling is designed to increase confidence in the existing resource model and support conversion of Inferred Mineral Resources to the Indicated category

**Resource Update**

Polarity: neutral

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

Why it applies: The company expects to 'update the Zonia mineral resource in Q4 2026' based on the results of this drill program.

Evidence · text

> Based on the results of this drill program, the Company expects to update the Zonia mineral resource in Q4 2026.

**PEA-Supporting**

Polarity: neutral

Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: The current drilling is referenced against the 'current pit shell used for the Company's preliminary economic assessment \(the "Pit Shell"\)'.

Evidence · text

> current pit shell used for the Company's preliminary economic assessment \(the "Pit Shell"\)

## Extracted facts

Stored fact records: 16. Some facts used in scoring do not have a stored record.

## Drill Results (16)

### ZND0001

[Link to this fact](https://atlas-staging.minestarters.com/news/edge-copper-initial-drilling-confirms-broad-oxide-copper-mineralization-and-expa--d8403e61-5da1-4941-b0c2-d36f6eef3099#fact-drill-facts-0)

Zonia Copper Project · copper

#### Identity

- Hole ID: ZND0001
- Project: Zonia Copper Project
- Commodity: copper
- Region: usa\_az
- Reported Region: Arizona
- Ticker: EDCU

#### Geometry

- Grade: 0.21
- Grade Unit: %
- Intercept: 37.18 m
- From: 82.3 m
- To: 119.48 m
- Hole Depth: 187.76 m

#### Classification

- Deposit Type: porphyry
- Program: mixed
- Sample Type: drill
- Group ID: ZND0001:82.3-119.48
- Mining Method: open\_pit

#### Location

- Easting: 480942
- Northing: 1198441
- CRS: Arizona State Plane
- EPSG: 2223
- Elevation: 1428.24 m
- Azimuth: 125 °
- Dip: -50 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: Skyline Assayers and Laboratories
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: blanks, standards, duplicates

#### Compositing

- Cutoff Grade: 0.1
- Cutoff Unit: %

#### Review

- Needs Review: No
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-05-19T00:00:00.000Z

Reasoning: Weak copper grade over a strong width, but the grade-thickness product is below the weak threshold for porphyry copper.

- Positive factor: Strong interval width

- Negative factor: Weak copper grade for porphyry deposit

- Negative factor: Grade-thickness product below weak threshold

Evidence · table

> 0.21

Context: 122

### ZND0002

[Link to this fact](https://atlas-staging.minestarters.com/news/edge-copper-initial-drilling-confirms-broad-oxide-copper-mineralization-and-expa--d8403e61-5da1-4941-b0c2-d36f6eef3099#fact-drill-facts-1)

Zonia Copper Project · copper

#### Identity

- Hole ID: ZND0002
- Project: Zonia Copper Project
- Commodity: copper
- Region: usa\_az
- Reported Region: Arizona
- Ticker: EDCU

#### Geometry

- Grade: 0.25
- Grade Unit: %
- Intercept: 93.27 m
- From: 7.32 m
- To: 100.58 m
- Hole Depth: 256.64 m

#### Classification

- Deposit Type: porphyry
- Program: mixed
- Sample Type: drill
- Group ID: ZND0002:7.32-100.58
- Mining Method: open\_pit

#### Location

- Easting: 482421
- Northing: 1200686
- CRS: Arizona State Plane
- EPSG: 2223
- Elevation: 1312.47 m
- Azimuth: 138 °
- Dip: -48 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: Skyline Assayers and Laboratories
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: blanks, standards, duplicates

#### Compositing

- Cutoff Grade: 0.1
- Cutoff Unit: %

#### Review

- Needs Review: No
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-05-19T00:00:00.000Z

Reasoning: Moderate copper grade over a continuous width, resulting in a weak grade-thickness product for porphyry copper.

- Positive factor: Moderate copper grade

- Positive factor: Continuous interval width

- Negative factor: Grade-thickness product is weak for porphyry copper

Evidence · table

> 0.25

Context: 306

### ZND0002

[Link to this fact](https://atlas-staging.minestarters.com/news/edge-copper-initial-drilling-confirms-broad-oxide-copper-mineralization-and-expa--d8403e61-5da1-4941-b0c2-d36f6eef3099#fact-drill-facts-2)

Zonia Copper Project · copper

#### Identity

- Hole ID: ZND0002
- Project: Zonia Copper Project
- Commodity: copper
- Region: usa\_az
- Reported Region: Arizona
- Ticker: EDCU

#### Geometry

- Grade: 0.38
- Grade Unit: %
- Intercept: 23.77 m
- From: 17.98 m
- To: 41.76 m
- Hole Depth: 256.64 m

#### Classification

- Deposit Type: porphyry
- Program: mixed
- Sample Type: drill
- Group ID: ZND0002:17.98-41.76
- Mining Method: open\_pit

#### Location

- Easting: 482421
- Northing: 1200686
- CRS: Arizona State Plane
- EPSG: 2223
- Elevation: 1312.47 m
- Azimuth: 138 °
- Dip: -48 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: Skyline Assayers and Laboratories
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: blanks, standards, duplicates

#### Compositing

- Cutoff Grade: 0.1
- Cutoff Unit: %

#### Review

- Needs Review: No
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-05-19T00:00:00.000Z

Reasoning: Higher-grade sub-interval with moderate copper grade over a strong width, but the grade-thickness product is below the weak threshold for porphyry copper.

- Positive factor: Moderate copper grade

- Positive factor: Strong interval width

- Negative factor: Grade-thickness product below weak threshold

Evidence · table

> 0.38

Context: 78

### ZND0003

[Link to this fact](https://atlas-staging.minestarters.com/news/edge-copper-initial-drilling-confirms-broad-oxide-copper-mineralization-and-expa--d8403e61-5da1-4941-b0c2-d36f6eef3099#fact-drill-facts-3)

Zonia Copper Project · copper

#### Identity

- Hole ID: ZND0003
- Project: Zonia Copper Project
- Commodity: copper
- Region: usa\_az
- Reported Region: Arizona
- Ticker: EDCU

#### Geometry

- Grade: 0.36
- Grade Unit: %
- Intercept: 75.29 m
- From: 51.82 m
- To: 127.1 m
- Hole Depth: 139.29 m

#### Classification

- Deposit Type: porphyry
- Program: mixed
- Sample Type: drill
- Group ID: ZND0003:51.82-127.1
- Mining Method: open\_pit

#### Location

- Easting: 481650
- Northing: 1198890
- CRS: Arizona State Plane
- EPSG: 2223
- Elevation: 1423.98 m
- Azimuth: 130 °
- Dip: -45 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: Skyline Assayers and Laboratories
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: blanks, standards, duplicates

#### Compositing

- Cutoff Grade: 0.1
- Cutoff Unit: %

#### Review

- Needs Review: No
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-05-19T00:00:00.000Z

Reasoning: Moderate copper grade over a continuous width, resulting in a weak grade-thickness product for porphyry copper. This intercept extends mineralization below the modelled base of oxide.

- Positive factor: Moderate copper grade

- Positive factor: Continuous interval width

- Positive factor: Extends mineralization below modelled base of oxide

- Negative factor: Grade-thickness product is weak for porphyry copper

Evidence · table

> 0.36

Context: 247

### ZND0006

[Link to this fact](https://atlas-staging.minestarters.com/news/edge-copper-initial-drilling-confirms-broad-oxide-copper-mineralization-and-expa--d8403e61-5da1-4941-b0c2-d36f6eef3099#fact-drill-facts-4)

Zonia Copper Project · copper

Needs review: ungrounded

#### Identity

- Hole ID: ZND0006
- Project: Zonia Copper Project
- Commodity: copper
- Region: usa\_az
- Reported Region: Arizona
- Ticker: EDCU

#### Geometry

- Grade: 0.21
- Grade Unit: %
- Intercept: 108.51 m
- From: 24.08 m
- To: 132.59 m
- Hole Depth: 260.6 m

#### Classification

- Deposit Type: porphyry
- Program: mixed
- Sample Type: drill
- Group ID: ZND0006:24.08-132.59
- Mining Method: open\_pit

#### Location

- Easting: 484973
- Northing: 1204046
- CRS: Arizona State Plane
- EPSG: 2223
- Elevation: 1318.56 m
- Azimuth: 136 °
- Dip: -48 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: Skyline Assayers and Laboratories
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: blanks, standards, duplicates

#### Compositing

- Cutoff Grade: 0.1
- Cutoff Unit: %

#### Review

- Needs Review: Yes
- Review Reason: ungrounded
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-05-19T00:00:00.000Z

Reasoning: Weak copper grade over a continuous width, resulting in a weak grade-thickness product for porphyry copper.

- Positive factor: Continuous interval width

- Negative factor: Weak copper grade for porphyry deposit

- Negative factor: Grade-thickness product is weak for porphyry copper

Evidence · table

> 0.21

Context: 356

### ZND0006

[Link to this fact](https://atlas-staging.minestarters.com/news/edge-copper-initial-drilling-confirms-broad-oxide-copper-mineralization-and-expa--d8403e61-5da1-4941-b0c2-d36f6eef3099#fact-drill-facts-5)

Zonia Copper Project · copper

#### Identity

- Hole ID: ZND0006
- Project: Zonia Copper Project
- Commodity: copper
- Region: usa\_az
- Reported Region: Arizona
- Ticker: EDCU

#### Geometry

- Grade: 0.31
- Grade Unit: %
- Intercept: 27.43 m
- From: 40.23 m
- To: 67.67 m
- Hole Depth: 260.6 m

#### Classification

- Deposit Type: porphyry
- Program: mixed
- Sample Type: drill
- Group ID: ZND0006:40.23-67.67
- Mining Method: open\_pit

#### Location

- Easting: 484973
- Northing: 1204046
- CRS: Arizona State Plane
- EPSG: 2223
- Elevation: 1318.56 m
- Azimuth: 136 °
- Dip: -48 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: Skyline Assayers and Laboratories
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: blanks, standards, duplicates

#### Compositing

- Cutoff Grade: 0.1
- Cutoff Unit: %

#### Review

- Needs Review: No
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-05-19T00:00:00.000Z

Reasoning: Higher-grade sub-interval with moderate copper grade over a strong width, but the grade-thickness product is below the weak threshold for porphyry copper.

- Positive factor: Moderate copper grade

- Positive factor: Strong interval width

- Negative factor: Grade-thickness product below weak threshold

Evidence · table

> 0.31

Context: 90

### ZND0007

[Link to this fact](https://atlas-staging.minestarters.com/news/edge-copper-initial-drilling-confirms-broad-oxide-copper-mineralization-and-expa--d8403e61-5da1-4941-b0c2-d36f6eef3099#fact-drill-facts-6)

Zonia Copper Project · copper

#### Identity

- Hole ID: ZND0007
- Project: Zonia Copper Project
- Commodity: copper
- Region: usa\_az
- Reported Region: Arizona
- Ticker: EDCU

#### Geometry

- Grade: 0.19
- Grade Unit: %
- Intercept: 22.25 m
- From: 6.1 m
- To: 28.35 m
- Hole Depth: 212.45 m

#### Classification

- Deposit Type: porphyry
- Program: mixed
- Sample Type: drill
- Group ID: ZND0007:6.1-28.35
- Mining Method: open\_pit

#### Location

- Easting: 486010
- Northing: 1204190
- CRS: Arizona State Plane
- EPSG: 2223
- Elevation: 1379.27 m
- Azimuth: 128 °
- Dip: -45 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: Skyline Assayers and Laboratories
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: blanks, standards, duplicates

#### Compositing

- Cutoff Grade: 0.1
- Cutoff Unit: %

#### Review

- Needs Review: No
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-05-19T00:00:00.000Z

Reasoning: Weak copper grade over a strong width, but the grade-thickness product is below the weak threshold for porphyry copper.

- Positive factor: Strong interval width

- Negative factor: Weak copper grade for porphyry deposit

- Negative factor: Grade-thickness product below weak threshold

Evidence · table

> 0.19

Context: 73

### ZND0009

[Link to this fact](https://atlas-staging.minestarters.com/news/edge-copper-initial-drilling-confirms-broad-oxide-copper-mineralization-and-expa--d8403e61-5da1-4941-b0c2-d36f6eef3099#fact-drill-facts-7)

Zonia Copper Project · copper

#### Identity

- Hole ID: ZND0009
- Project: Zonia Copper Project
- Commodity: copper
- Region: usa\_az
- Reported Region: Arizona
- Ticker: EDCU

#### Geometry

- Grade: 0.29
- Grade Unit: %
- Intercept: 71.93 m
- From: 153.62 m
- To: 225.55 m
- Hole Depth: 269.44 m

#### Classification

- Deposit Type: porphyry
- Program: mixed
- Sample Type: drill
- Group ID: ZND0009:153.62-225.55
- Mining Method: open\_pit

#### Location

- Easting: 482329
- Northing: 1199185
- CRS: Arizona State Plane
- EPSG: 2223
- Elevation: 1397.22 m
- Azimuth: 130 °
- Dip: -48 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: Skyline Assayers and Laboratories
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: blanks, standards, duplicates

#### Compositing

- Cutoff Grade: 0.1
- Cutoff Unit: %

#### Review

- Needs Review: No
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-05-19T00:00:00.000Z

Reasoning: Moderate copper grade over a continuous width, resulting in a weak grade-thickness product for porphyry copper.

- Positive factor: Moderate copper grade

- Positive factor: Continuous interval width

- Negative factor: Grade-thickness product is weak for porphyry copper

Evidence · table

> 0.29

Context: 236

### ZND0009

[Link to this fact](https://atlas-staging.minestarters.com/news/edge-copper-initial-drilling-confirms-broad-oxide-copper-mineralization-and-expa--d8403e61-5da1-4941-b0c2-d36f6eef3099#fact-drill-facts-8)

Zonia Copper Project · copper

#### Identity

- Hole ID: ZND0009
- Project: Zonia Copper Project
- Commodity: copper
- Region: usa\_az
- Reported Region: Arizona
- Ticker: EDCU

#### Geometry

- Grade: 0.43
- Grade Unit: %
- Intercept: 27.43 m
- From: 176.78 m
- To: 204.22 m
- Hole Depth: 269.44 m

#### Classification

- Deposit Type: porphyry
- Program: mixed
- Sample Type: drill
- Group ID: ZND0009:176.78-204.22
- Mining Method: open\_pit

#### Location

- Easting: 482329
- Northing: 1199185
- CRS: Arizona State Plane
- EPSG: 2223
- Elevation: 1397.22 m
- Azimuth: 130 °
- Dip: -48 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: Skyline Assayers and Laboratories
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: blanks, standards, duplicates

#### Compositing

- Cutoff Grade: 0.1
- Cutoff Unit: %

#### Review

- Needs Review: No
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-05-19T00:00:00.000Z

Reasoning: Strong copper grade over a strong width, but the grade-thickness product is below the weak threshold for porphyry copper.

- Positive factor: Strong copper grade

- Positive factor: Strong interval width

- Negative factor: Grade-thickness product below weak threshold

Evidence · table

> 0.43

Context: 90

### ZND0013

[Link to this fact](https://atlas-staging.minestarters.com/news/edge-copper-initial-drilling-confirms-broad-oxide-copper-mineralization-and-expa--d8403e61-5da1-4941-b0c2-d36f6eef3099#fact-drill-facts-9)

Zonia Copper Project · copper

#### Identity

- Hole ID: ZND0013
- Project: Zonia Copper Project
- Commodity: copper
- Region: usa\_az
- Reported Region: Arizona
- Ticker: EDCU

#### Geometry

- Grade: 0.22
- Grade Unit: %
- Intercept: 36.58 m
- From: 42.67 m
- To: 79.25 m
- Hole Depth: 242.62 m

#### Classification

- Deposit Type: porphyry
- Program: mixed
- Sample Type: drill
- Group ID: ZND0013:42.67-79.25
- Mining Method: open\_pit

#### Location

- Easting: 486574
- Northing: 1204775
- CRS: Arizona State Plane
- EPSG: 2223
- Elevation: 1435.63 m
- Azimuth: 128 °
- Dip: -45 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: Skyline Assayers and Laboratories
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: blanks, standards, duplicates

#### Compositing

- Cutoff Grade: 0.1
- Cutoff Unit: %

#### Review

- Needs Review: No
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-05-19T00:00:00.000Z

Reasoning: Weak copper grade over a strong width, but the grade-thickness product is below the weak threshold for porphyry copper.

- Positive factor: Strong interval width

- Negative factor: Weak copper grade for porphyry deposit

- Negative factor: Grade-thickness product below weak threshold

Evidence · table

> 0.22

Context: 120

### ZND0014

[Link to this fact](https://atlas-staging.minestarters.com/news/edge-copper-initial-drilling-confirms-broad-oxide-copper-mineralization-and-expa--d8403e61-5da1-4941-b0c2-d36f6eef3099#fact-drill-facts-10)

Zonia Copper Project · copper

Needs review: ungrounded

#### Identity

- Hole ID: ZND0014
- Project: Zonia Copper Project
- Commodity: copper
- Region: usa\_az
- Reported Region: Arizona
- Ticker: EDCU

#### Geometry

- Grade: 0.23
- Grade Unit: %
- Intercept: 189.28 m
- From: 24.08 m
- To: 213.36 m
- Hole Depth: 258.78 m

#### Classification

- Deposit Type: porphyry
- Program: mixed
- Sample Type: drill
- Group ID: ZND0014:24.08-213.36
- Mining Method: open\_pit

#### Location

- Easting: 485801
- Northing: 1203889
- CRS: Arizona State Plane
- EPSG: 2223
- Elevation: 1329.23 m
- Azimuth: 115 °
- Dip: -52 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: Skyline Assayers and Laboratories
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: blanks, standards, duplicates

#### Compositing

- Cutoff Grade: 0.1
- Cutoff Unit: %

#### Review

- Needs Review: Yes
- Review Reason: ungrounded
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-05-19T00:00:00.000Z

Reasoning: Weak copper grade over an exceptionally broad continuous width, resulting in a weak grade-thickness product for porphyry copper. This intercept suggests potential for pit-shell expansion.

- Positive factor: Exceptionally broad continuous interval width

- Positive factor: Suggests potential for pit-shell expansion

- Negative factor: Weak copper grade for porphyry deposit

- Negative factor: Grade-thickness product is weak for porphyry copper

Evidence · table

> 0.23

Context: 621

### ZND0014

[Link to this fact](https://atlas-staging.minestarters.com/news/edge-copper-initial-drilling-confirms-broad-oxide-copper-mineralization-and-expa--d8403e61-5da1-4941-b0c2-d36f6eef3099#fact-drill-facts-11)

Zonia Copper Project · copper

#### Identity

- Hole ID: ZND0014
- Project: Zonia Copper Project
- Commodity: copper
- Region: usa\_az
- Reported Region: Arizona
- Ticker: EDCU

#### Geometry

- Grade: 0.34
- Grade Unit: %
- Intercept: 23.47 m
- From: 31.09 m
- To: 54.56 m
- Hole Depth: 258.78 m

#### Classification

- Deposit Type: porphyry
- Program: mixed
- Sample Type: drill
- Group ID: ZND0014:31.09-54.56
- Mining Method: open\_pit

#### Location

- Easting: 485801
- Northing: 1203889
- CRS: Arizona State Plane
- EPSG: 2223
- Elevation: 1329.23 m
- Azimuth: 115 °
- Dip: -52 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: Skyline Assayers and Laboratories
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: blanks, standards, duplicates

#### Compositing

- Cutoff Grade: 0.1
- Cutoff Unit: %

#### Review

- Needs Review: No
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-05-19T00:00:00.000Z

Reasoning: Higher-grade sub-interval with moderate copper grade over a strong width, but the grade-thickness product is below the weak threshold for porphyry copper.

- Positive factor: Moderate copper grade

- Positive factor: Strong interval width

- Negative factor: Grade-thickness product below weak threshold

Evidence · table

> 0.34

Context: 77

### ZND0014

[Link to this fact](https://atlas-staging.minestarters.com/news/edge-copper-initial-drilling-confirms-broad-oxide-copper-mineralization-and-expa--d8403e61-5da1-4941-b0c2-d36f6eef3099#fact-drill-facts-12)

Zonia Copper Project · copper

#### Identity

- Hole ID: ZND0014
- Project: Zonia Copper Project
- Commodity: copper
- Region: usa\_az
- Reported Region: Arizona
- Ticker: EDCU

#### Geometry

- Grade: 0.36
- Grade Unit: %
- Intercept: 53.04 m
- From: 129.54 m
- To: 182.58 m
- Hole Depth: 258.78 m

#### Classification

- Deposit Type: porphyry
- Program: mixed
- Sample Type: drill
- Group ID: ZND0014:129.54-182.58
- Mining Method: open\_pit

#### Location

- Easting: 485801
- Northing: 1203889
- CRS: Arizona State Plane
- EPSG: 2223
- Elevation: 1329.23 m
- Azimuth: 115 °
- Dip: -52 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: Skyline Assayers and Laboratories
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: blanks, standards, duplicates

#### Compositing

- Cutoff Grade: 0.1
- Cutoff Unit: %

#### Review

- Needs Review: No
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-05-19T00:00:00.000Z

Reasoning: Higher-grade sub-interval with moderate copper grade over a continuous width, but the grade-thickness product is below the weak threshold for porphyry copper.

- Positive factor: Moderate copper grade

- Positive factor: Continuous interval width

- Negative factor: Grade-thickness product below weak threshold

Evidence · table

> 0.36

Context: 174

### ZND0015

[Link to this fact](https://atlas-staging.minestarters.com/news/edge-copper-initial-drilling-confirms-broad-oxide-copper-mineralization-and-expa--d8403e61-5da1-4941-b0c2-d36f6eef3099#fact-drill-facts-13)

Zonia Copper Project · copper

#### Identity

- Hole ID: ZND0015
- Project: Zonia Copper Project
- Commodity: copper
- Region: usa\_az
- Reported Region: Arizona
- Ticker: EDCU

#### Geometry

- Grade: 0.14
- Grade Unit: %
- Intercept: 11.28 m
- From: 24.69 m
- To: 35.97 m
- Hole Depth: 321.87 m

#### Classification

- Deposit Type: porphyry
- Program: mixed
- Sample Type: drill
- Group ID: ZND0015:24.69-35.97
- Mining Method: open\_pit

#### Location

- Easting: 481595
- Northing: 1200270
- CRS: Arizona State Plane
- EPSG: 2223
- Elevation: 1441.12 m
- Azimuth: 135 °
- Dip: -45 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: Skyline Assayers and Laboratories
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: blanks, standards, duplicates

#### Compositing

- Cutoff Grade: 0.1
- Cutoff Unit: %

#### Review

- Needs Review: No
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-05-19T00:00:00.000Z

Reasoning: Low copper grade over a moderate width, with a grade-thickness product well below the weak threshold for porphyry copper.

- Negative factor: Low copper grade for porphyry deposit

- Negative factor: Grade-thickness product well below weak threshold

Evidence · table

> 0.14

Context: 37

### ZND0019

[Link to this fact](https://atlas-staging.minestarters.com/news/edge-copper-initial-drilling-confirms-broad-oxide-copper-mineralization-and-expa--d8403e61-5da1-4941-b0c2-d36f6eef3099#fact-drill-facts-14)

Zonia Copper Project · copper

#### Identity

- Hole ID: ZND0019
- Project: Zonia Copper Project
- Commodity: copper
- Region: usa\_az
- Reported Region: Arizona
- Ticker: EDCU

#### Geometry

- Grade: 0.22
- Grade Unit: %
- Intercept: 80.47 m
- From: 81.08 m
- To: 161.54 m
- Hole Depth: 396.85 m

#### Classification

- Deposit Type: porphyry
- Program: mixed
- Sample Type: drill
- Group ID: ZND0019:81.08-161.54
- Mining Method: open\_pit

#### Location

- Easting: 483989
- Northing: 1203183
- CRS: Arizona State Plane
- EPSG: 2223
- Elevation: 1408.43 m
- Azimuth: 130 °
- Dip: -49 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: Skyline Assayers and Laboratories
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: blanks, standards, duplicates

#### Compositing

- Cutoff Grade: 0.1
- Cutoff Unit: %

#### Review

- Needs Review: No
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-05-19T00:00:00.000Z

Reasoning: Weak copper grade over a continuous width, but the grade-thickness product is below the weak threshold for porphyry copper.

- Positive factor: Continuous interval width

- Negative factor: Weak copper grade for porphyry deposit

- Negative factor: Grade-thickness product below weak threshold

Evidence · table

> 0.22

Context: 264

### ZND0019

[Link to this fact](https://atlas-staging.minestarters.com/news/edge-copper-initial-drilling-confirms-broad-oxide-copper-mineralization-and-expa--d8403e61-5da1-4941-b0c2-d36f6eef3099#fact-drill-facts-15)

Zonia Copper Project · copper

#### Identity

- Hole ID: ZND0019
- Project: Zonia Copper Project
- Commodity: copper
- Region: usa\_az
- Reported Region: Arizona
- Ticker: EDCU

#### Geometry

- Grade: 0.45
- Grade Unit: %
- Intercept: 20.42 m
- From: 113.7 m
- To: 134.11 m
- Hole Depth: 396.85 m

#### Classification

- Deposit Type: porphyry
- Program: mixed
- Sample Type: drill
- Group ID: ZND0019:113.7-134.11
- Mining Method: open\_pit

#### Location

- Easting: 483989
- Northing: 1203183
- CRS: Arizona State Plane
- EPSG: 2223
- Elevation: 1408.43 m
- Azimuth: 130 °
- Dip: -49 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: Skyline Assayers and Laboratories
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: blanks, standards, duplicates

#### Compositing

- Cutoff Grade: 0.1
- Cutoff Unit: %

#### Review

- Needs Review: No
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-05-19T00:00:00.000Z

Reasoning: Strong copper grade over a strong width, but the grade-thickness product is below the weak threshold for porphyry copper.

- Positive factor: Strong copper grade

- Positive factor: Strong interval width

- Negative factor: Grade-thickness product below weak threshold

Evidence · table

> 0.45

Context: 67

## 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.