# Selkirk Copper Discovers a New Mineralized Zone and Commences a Phase 2 Drill Program Targeting 50,000 Additional Metres

Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253

Original source: https://money.tmx.com/en/quote/SCMI/news/5331284903440729/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr

Publisher: tmx

Original announcement: 2026-05-11T11:00:00.000Z

Analysis by Minestarters Atlas

Atlas analysis published: Unknown date

Atlas analysis updated: Unknown date

- Company: Selkirk Copper Mines Inc.

- Ticker: SCMI

- Exchange: TSX

- Region: Yukon, Canada

- Primary commodity: Copper

- Secondary commodities: Gold, Silver

- Document categories: Drill results, Resource update

- Extracted: 2026-08-22 10:52:11 UTC

Narrative sentiment: 0.80 · Bullish

## Minestarters Atlas summary

Selkirk Copper announced the discovery of a new mineralized zone, the 117 Lens, with high-grade copper-gold-silver intercepts, including 1.27% CuEq over 12.6m and 3.04% CuEq over 5.8m. The company has also commenced a 50,000-meter Phase 2 drill program at its Minto Mine in Yukon, Canada, focusing on resource expansion and confidence building for a planned feasibility study. An updated Mineral Resource Estimate for the Minto Project, effective April 7, 2025, was also detailed, showing significant indicated and inferred resources for copper, gold, and silver.

Reasoning: The announcement reports the discovery of a new mineralized zone \(117 Lens\) with several high-grade copper-gold-silver drill intercepts, alongside a substantial 50,000-meter Phase 2 drill program aimed at resource expansion and increasing confidence for a planned feasibility study. The updated Mineral Resource Estimate, which includes good grades and moderate confidence, is also on track, indicating significant progress and future potential for the Minto Mine.

- Positive factor: Discovery of a new mineralized zone \(117 Lens\)

- Positive factor: Multiple high-grade copper-gold-silver intercepts, some exceptional for IOCG deposit type

- Positive factor: Significant 50,000-meter Phase 2 drill program planned for resource expansion and confidence building

- Positive factor: Updated Mineral Resource Estimate on track for completion

- Positive factor: True width estimates provided for drill intercepts

- Positive factor: Comprehensive QA/QC procedures disclosed, including certified lab and QP sign-off

- Positive factor: Metal equivalent assumptions are transparently disclosed

- Negative factor: Some drill holes reported no significant intercepts

- Negative factor: Some Minto North results are lower grade than previous, indicating variability

- Negative factor: Cut-off grade for drill intercepts not consistently disclosed across all zones

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

Facts used in scoring: 70

## Classification and evidence

**New Mineralized Zone**

Polarity: positive

Story-specific tag

Definition: No canonical definition is currently available.

Why it applies: A new mineralized zone, the 117 Lens, has been discovered beneath a previously mined open pit.

Evidence · text

> A new mineralized zone, the 117 Lens , has been discovered beneath a previously mined open pit.

**Bonanza Intercept**

Polarity: positive

Definition: Exceptionally high-grade zone, well above the deposit-type norm.

Why it applies: The intercept of 2.93% Cu over 5.0m \(4.19% CuEq\) in hole 26SCM142 is an exceptional grade for an IOCG deposit.

Evidence · table

> 2.93

Context: 5.0

**Bonanza Intercept**

Polarity: positive

Definition: Exceptionally high-grade zone, well above the deposit-type norm.

Why it applies: The intercept of 2.57% Cu over 9.1m \(3.13% CuEq\) in hole 26SCM128 is an exceptional grade for an IOCG deposit.

Evidence · table

> 2.57

Context: 9.1

**Bonanza Intercept**

Polarity: positive

Definition: Exceptionally high-grade zone, well above the deposit-type norm.

Why it applies: The intercept of 2.36% Cu over 5.8m \(3.04% CuEq\) in hole 26SCM128 is an exceptional grade for an IOCG deposit.

Evidence · table

> 2.36

Context: 5.8

**True Width Disclosed**

Polarity: positive

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

Why it applies: The document states that true widths are typically >90% of reported drill intersection length for Minto North and Minto East zones, and approximate 85-90% for Ridgetop and Area 118.

Evidence · text

> At the Minto North and Minto East zones, the flat laying to shallowly dipping nature of the mineralized zones suggest that true widths are typically >90% of the reported drill intersection length. At Ridgetop and Area 118, true widths are approximate 85-90% of reported drill intersection.

**Step-Out Extension**

Polarity: positive

Definition: Mineralization extended beyond the previously known limit.

Why it applies: Drilling at Minto East targeted expansion of several stacked mineralized lenses, with hole 26SCM128 stepping out 70 metres from historical drilling and intersecting a fifth mineralized lens beyond previous extents.

Evidence · text

> Drill hole 26SCM128 stepped out 70 metres from historical drilling and intersected a series of four mineralized lenses between 240 and 480 metres downhole. Each lens is characterized by foliated granodiorite and migmatite, with high-grade chalcopyrite-bornite mineralization. The elevation, mineralogy, and texture of these mineralized lenses correspond well with previously drill intercepts, suggesting continuity of the mineralized zone into this area. Additionally, a fifth mineralized lens was intersected at depth, beyond the extents of previous drilling, indicating potential to continue delineating new resources at depth.

**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 document includes a dedicated section detailing QAQC procedures, including insertion of certified reference material, blanks, and field duplicates.

Evidence · text

> QAQC Procedures and Data Validation The Company is drilling NQ sized core. Following data collection, core is cut along the long axis, with half of the core going to the lab for chemical analysis and the remaining half kept in sequence as record. The half core samples are packaged with the corresponding sample tag id and sealed. All sampling is conducted by Selkirk Copper Mines Inc. and subject to Company standard internal quality control and quality assurance \(QAQC\) programs which include the insertion of certified reference material, coarse blank materials, and field duplicate analysis, on top of the standard laboratory QAQC procedures to monitor contamination during preparation and analytical accuracy and precision.

**Certified Lab**

Polarity: positive

Story-specific tag

Definition: No canonical definition is currently available.

Why it applies: ALS Vancouver, the laboratory used for analysis, holds an ISO/IEC 17025 standard accreditation.

Evidence · text

> ALS Vancouver holds an ISO/IEC 17025 standard accreditation.

**QP/CP Signed**

Polarity: positive

Definition: Qualified Person \(QP\) or Competent Person \(CP\) named and signed off — a member of a recognized professional association \(e.g., AusIMM, SME, AIG, P.Geo\) with relevant experience.

Why it applies: Leif Bailey, P.Geo., Director of Geoscience & Exploration of Selkirk Copper Mines Inc., is a qualified person as defined by NI 43-101 and approved the technical aspects of the news release.

Evidence · text

> Technical aspects of this news release have been reviewed, verified and approved by Leif Bailey, P.Geo., Director of Geoscience & Exploration of Selkirk Copper Mines Inc., who is a qualified person as defined by National Instrument 43-101 - Standards of Disclosure for Mineral Projects.

**Metal Equivalent Opaque**

Polarity: negative

Definition: Metal equivalent grade reported without disclosing the price, recovery, or payability assumptions used.

Why it applies: Metal equivalent grades are reported with full disclosure of commodity prices and recovery assumptions.

Evidence · text

> CuEq Calculation: CuEq = \(\(Cu% × CuP × RCu × 2204.62\)+\(Au g/t ÷ 31.1035 × AuP × RAu\) + \(Ag g/t ÷ 31.1035 × AgP × RAg \)\)/\(CuP × RCu × 2204.62\) Where: CuP/AuP/AgP = US$ commodity prices of $4.25/lb Cu, $2500/oz Au, $29/oz Ag; RCu = Cu Recovery = 98%; RAu = Au Recovery = 85%; RAg= Ag Recovery = 85% Recoveries as estimated from historical mineral processing results.

**Infill Drilling**

Polarity: neutral

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

Why it applies: The Phase 2 drill program will include infill drilling to support increased resource confidence and mine planning.

Evidence · text

> This drill program will continue to focus on resource expansion, while including infill drilling, geotechnical drilling, and geometallurgical data collection to support increased resource confidence and mine planning, all of which will inform planned feasibility study work.

**Resource Update**

Polarity: neutral

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

Why it applies: The document presents an updated Mineral Resource Estimate for the Minto Project.

Evidence · text

> With the updated Mineral Resource Estimate and Preliminary Economic Assessment on track for completion in mid-2026

**NI 43-101 Compliant**

Polarity: positive

Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard.

Why it applies: The Mineral Resource Estimate is reported using the 2014 CIM Definition Standards and 2019 CIM Best Practices Guidelines, consistent with NI 43-101.

Evidence · text

> Resources are reported using the 2014 CIM Definition Standards and were estimated using the 2019 CIM Best Practices Guidelines.

**QP/CP Signed**

Polarity: positive

Definition: Qualified Person \(QP\) or Competent Person \(CP\) named and signed off — a member of a recognized professional association \(e.g., AusIMM, SME, AIG, P.Geo\) with relevant experience.

Why it applies: The MRE has been completed by Sue Bird of Moose Mountain Technical Services \(MMTS\).

Evidence · text

> The MRE has been completed by Sue Bird of Moose Mountain Technical Services \(MMTS\).

**Cut-off Disclosed**

Polarity: positive

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

Why it applies: Cut-off grades for both open pit \(C$30\) and underground \(C$80\) resources are clearly stated in the resource table.

Evidence · table

> $30

Context: OP

**Inferred Resource**

Polarity: negative

Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.

Why it applies: A significant portion of the total resource \(23.658 Mt out of 36.246 Mt\) is classified as Inferred, which is a speculative category.

Evidence · table

> 23,658

Context: Inferred

**PEA-Supporting**

Polarity: neutral

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

Why it applies: The updated Mineral Resource Estimate and Preliminary Economic Assessment are on track for completion in mid-2026, indicating the resource supports an early-stage study.

Evidence · text

> With the updated Mineral Resource Estimate and Preliminary Economic Assessment on track for completion in mid-2026

## Extracted facts

Stored fact records: 70. Some facts used in scoring do not have a stored record.

## Drill Results (70)

### 25SCM096

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-0)

Minto Mine · copper

#### Identity

- Hole ID: 25SCM096
- Project: Minto Mine
- Commodity: copper
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.93
- Grade Unit: %
- Intercept: 5.2 m
- True Width: 4.68 m
- From: 205.5 m
- To: 210.7 m
- Hole Depth: 360 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 25SCM096:205.5-210.7
- Mining Method: mixed

#### Location

- Easting: 384116
- Northing: 6945834
- CRS: unknown
- Azimuth: 0 °
- Dip: -88 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### 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: 2026-05-11T00:00:00.000Z

Reasoning: The intercept of 0.93% Cu over 5.2m is an exceptional grade for an IOCG deposit, contributing positively to the overall resource potential, with true width estimated.

- Positive factor: Exceptional copper grade for IOCG deposit type

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of a broader program with new discoveries

Evidence · table

> 0.93

Context: 5.2

### 25SCM096

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-1)

Minto Mine · gold

#### Identity

- Hole ID: 25SCM096
- Project: Minto Mine
- Commodity: gold
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.29
- Grade Unit: g/t
- Intercept: 5.2 m
- True Width: 4.68 m
- From: 205.5 m
- To: 210.7 m
- Hole Depth: 360 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 25SCM096:205.5-210.7
- Mining Method: mixed

#### Location

- Easting: 384116
- Northing: 6945834
- CRS: unknown
- Azimuth: 0 °
- Dip: -88 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The gold grade of 0.29 g/t over 5.2m is a moderate grade for an IOCG deposit, contributing to the polymetallic nature of the mineralization.

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of a broader program with new discoveries

Evidence · table

> 0.29

Context: 5.2

### 25SCM096

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-2)

Minto Mine · silver

#### Identity

- Hole ID: 25SCM096
- Project: Minto Mine
- Commodity: silver
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 2.63
- Grade Unit: g/t
- Intercept: 5.2 m
- True Width: 4.68 m
- From: 205.5 m
- To: 210.7 m
- Hole Depth: 360 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 25SCM096:205.5-210.7
- Mining Method: mixed

#### Location

- Easting: 384116
- Northing: 6945834
- CRS: unknown
- Azimuth: 0 °
- Dip: -88 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The silver grade of 2.63 g/t over 5.2m is a weak grade for an IOCG deposit, contributing to the polymetallic nature of the mineralization.

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of a broader program with new discoveries

Evidence · table

> 2.63

Context: 5.2

### 25SCM097

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-3)

Minto Mine · copper

#### Identity

- Hole ID: 25SCM097
- Project: Minto Mine
- Commodity: copper
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.39
- Grade Unit: %
- Intercept: 6.3 m
- True Width: 5.355 m
- From: 47.7 m
- To: 54 m
- Hole Depth: 144.52 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 25SCM097:47.7-54.0
- Mining Method: mixed

#### Location

- Easting: 385059
- Northing: 6943286
- CRS: unknown
- Azimuth: 0 °
- Dip: -90 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Metal Eq. Grade: 0.43
- Metal Eq. Unit: % CuEq
- Assumptions Disclosed: Yes

#### Compositing

- Cutoff Grade: 0.3
- Cutoff Unit: % CuEq

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The intercept of 0.39% Cu over 6.3m is a moderate grade for an IOCG deposit and is above the stated cutoff for the Ridgetop zone, indicating economic potential.

- Positive factor: Moderate copper grade for IOCG deposit type

- Positive factor: True width estimated at 85-90% of reported length

- Positive factor: Above stated cutoff grade for the zone

Evidence · table

> 0.39

Context: 6.3

### 25SCM097

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-4)

Minto Mine · gold

#### Identity

- Hole ID: 25SCM097
- Project: Minto Mine
- Commodity: gold
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.04
- Grade Unit: g/t
- Intercept: 6.3 m
- True Width: 5.355 m
- From: 47.7 m
- To: 54 m
- Hole Depth: 144.52 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 25SCM097:47.7-54.0
- Mining Method: mixed

#### Location

- Easting: 385059
- Northing: 6943286
- CRS: unknown
- Azimuth: 0 °
- Dip: -90 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The gold grade of 0.04 g/t over 6.3m is a weak grade for an IOCG deposit, but contributes to the overall polymetallic nature of the mineralization.

- Positive factor: True width estimated at 85-90% of reported length

Evidence · table

> 0.04

Context: 6.3

### 25SCM097

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-5)

Minto Mine · silver

#### Identity

- Hole ID: 25SCM097
- Project: Minto Mine
- Commodity: silver
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 1.5
- Grade Unit: g/t
- Intercept: 6.3 m
- True Width: 5.355 m
- From: 47.7 m
- To: 54 m
- Hole Depth: 144.52 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 25SCM097:47.7-54.0
- Mining Method: mixed

#### Location

- Easting: 385059
- Northing: 6943286
- CRS: unknown
- Azimuth: 0 °
- Dip: -90 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The silver grade of 1.5 g/t over 6.3m is a weak grade for an IOCG deposit, but contributes to the overall polymetallic nature of the mineralization.

- Positive factor: True width estimated at 85-90% of reported length

Evidence · table

> 1.50

Context: 6.3

### 25SCM117

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-6)

Minto Mine · copper

#### Identity

- Hole ID: 25SCM117
- Project: Minto Mine
- Commodity: copper
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.38
- Grade Unit: %
- Intercept: 12.3 m
- True Width: 10.455 m
- From: 15 m
- To: 27.3 m
- Hole Depth: 231 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 25SCM117:15.0-27.3
- Mining Method: mixed

#### Location

- Easting: 385281
- Northing: 6943498
- CRS: unknown
- Azimuth: 0 °
- Dip: -90 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Metal Eq. Grade: 0.39
- Metal Eq. Unit: % CuEq
- Assumptions Disclosed: Yes

#### Compositing

- Cutoff Grade: 0.3
- Cutoff Unit: % CuEq

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The intercept of 0.38% Cu over 12.3m is a moderate grade for an IOCG deposit and is above the stated cutoff for the Ridgetop zone, indicating economic potential.

- Positive factor: Moderate copper grade for IOCG deposit type

- Positive factor: True width estimated at 85-90% of reported length

- Positive factor: Above stated cutoff grade for the zone

Evidence · table

> 0.38

Context: 12.3

### 25SCM117

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-7)

Minto Mine · gold

#### Identity

- Hole ID: 25SCM117
- Project: Minto Mine
- Commodity: gold
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.01
- Grade Unit: g/t
- Intercept: 12.3 m
- True Width: 10.455 m
- From: 15 m
- To: 27.3 m
- Hole Depth: 231 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 25SCM117:15.0-27.3
- Mining Method: mixed

#### Location

- Easting: 385281
- Northing: 6943498
- CRS: unknown
- Azimuth: 0 °
- Dip: -90 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The gold grade of 0.01 g/t over 12.3m is a weak grade for an IOCG deposit, but contributes to the overall polymetallic nature of the mineralization.

- Positive factor: True width estimated at 85-90% of reported length

Evidence · table

> 0.01

Context: 12.3

### 25SCM117

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-8)

Minto Mine · silver

#### Identity

- Hole ID: 25SCM117
- Project: Minto Mine
- Commodity: silver
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.33
- Grade Unit: g/t
- Intercept: 12.3 m
- True Width: 10.455 m
- From: 15 m
- To: 27.3 m
- Hole Depth: 231 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 25SCM117:15.0-27.3
- Mining Method: mixed

#### Location

- Easting: 385281
- Northing: 6943498
- CRS: unknown
- Azimuth: 0 °
- Dip: -90 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The silver grade of 0.33 g/t over 12.3m is a weak grade for an IOCG deposit, but contributes to the overall polymetallic nature of the mineralization.

- Positive factor: True width estimated at 85-90% of reported length

Evidence · table

> 0.33

Context: 12.3

### 25SCM118

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-9)

Minto Mine · copper

#### Identity

- Hole ID: 25SCM118
- Project: Minto Mine
- Commodity: copper
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.81
- Grade Unit: %
- Intercept: 17.8 m
- True Width: 16.02 m
- From: 210.2 m
- To: 228 m
- Hole Depth: 378 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 25SCM118:210.2-228.0
- Mining Method: mixed

#### Location

- Easting: 384117
- Northing: 6945836
- CRS: unknown
- Azimuth: 250 °
- Dip: -72 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### 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: 2026-05-11T00:00:00.000Z

Reasoning: The intercept of 0.81% Cu over 17.8m is a strong grade for an IOCG deposit with a strong grade-thickness product, indicating significant mineralization.

- Positive factor: Strong copper grade for IOCG deposit type

- Positive factor: Strong grade-thickness product \(14.42 %\*m\)

- Positive factor: True width estimated at >90% of reported length

Evidence · table

> 0.81

Context: 17.8

### 25SCM118

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-10)

Minto Mine · gold

#### Identity

- Hole ID: 25SCM118
- Project: Minto Mine
- Commodity: gold
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.36
- Grade Unit: g/t
- Intercept: 17.8 m
- True Width: 16.02 m
- From: 210.2 m
- To: 228 m
- Hole Depth: 378 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 25SCM118:210.2-228.0
- Mining Method: mixed

#### Location

- Easting: 384117
- Northing: 6945836
- CRS: unknown
- Azimuth: 250 °
- Dip: -72 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The gold grade of 0.36 g/t over 17.8m is a moderate grade for an IOCG deposit, contributing to the polymetallic nature of the mineralization.

- Positive factor: Moderate gold grade for IOCG deposit type

- Positive factor: True width estimated at >90% of reported length

Evidence · table

> 0.36

Context: 17.8

### 25SCM118

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-11)

Minto Mine · silver

#### Identity

- Hole ID: 25SCM118
- Project: Minto Mine
- Commodity: silver
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 3.03
- Grade Unit: g/t
- Intercept: 17.8 m
- True Width: 16.02 m
- From: 210.2 m
- To: 228 m
- Hole Depth: 378 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 25SCM118:210.2-228.0
- Mining Method: mixed

#### Location

- Easting: 384117
- Northing: 6945836
- CRS: unknown
- Azimuth: 250 °
- Dip: -72 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The silver grade of 3.03 g/t over 17.8m is a weak grade for an IOCG deposit, but contributes to the overall polymetallic nature of the mineralization.

- Positive factor: True width estimated at >90% of reported length

Evidence · table

> 3.03

Context: 17.8

### 25SCM119

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-12)

Minto Mine · copper

#### Identity

- Hole ID: 25SCM119
- Project: Minto Mine
- Commodity: copper
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.81
- Grade Unit: %
- Intercept: 5 m
- True Width: 4.25 m
- From: 24 m
- To: 29 m
- Hole Depth: 156 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 25SCM119:24.0-29.0
- Mining Method: mixed

#### Location

- Easting: 385281
- Northing: 6943498
- CRS: unknown
- Azimuth: 60 °
- Dip: -60 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

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

#### Compositing

- Cutoff Grade: 0.3
- Cutoff Unit: % CuEq

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The intercept of 0.81% Cu over 5.0m is a strong grade for an IOCG deposit and is above the stated cutoff for the Ridgetop zone, indicating economic potential.

- Positive factor: Strong copper grade for IOCG deposit type

- Positive factor: True width estimated at 85-90% of reported length

- Positive factor: Above stated cutoff grade for the zone

Evidence · table

> 0.81

Context: 5.0

### 25SCM119

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-13)

Minto Mine · gold

#### Identity

- Hole ID: 25SCM119
- Project: Minto Mine
- Commodity: gold
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.01
- Grade Unit: g/t
- Intercept: 5 m
- True Width: 4.25 m
- From: 24 m
- To: 29 m
- Hole Depth: 156 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 25SCM119:24.0-29.0
- Mining Method: mixed

#### Location

- Easting: 385281
- Northing: 6943498
- CRS: unknown
- Azimuth: 60 °
- Dip: -60 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The gold grade of 0.01 g/t over 5.0m is a weak grade for an IOCG deposit, but contributes to the overall polymetallic nature of the mineralization.

- Positive factor: True width estimated at 85-90% of reported length

Evidence · table

> 0.01

Context: 5.0

### 25SCM119

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-14)

Minto Mine · silver

#### Identity

- Hole ID: 25SCM119
- Project: Minto Mine
- Commodity: silver
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.64
- Grade Unit: g/t
- Intercept: 5 m
- True Width: 4.25 m
- From: 24 m
- To: 29 m
- Hole Depth: 156 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 25SCM119:24.0-29.0
- Mining Method: mixed

#### Location

- Easting: 385281
- Northing: 6943498
- CRS: unknown
- Azimuth: 60 °
- Dip: -60 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The silver grade of 0.64 g/t over 5.0m is a weak grade for an IOCG deposit, but contributes to the overall polymetallic nature of the mineralization.

- Positive factor: True width estimated at 85-90% of reported length

Evidence · table

> 0.64

Context: 5.0

### 26SCM124

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-15)

Minto Mine · copper

#### Identity

- Hole ID: 26SCM124
- Project: Minto Mine
- Commodity: copper
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.74
- Grade Unit: %
- Intercept: 9.7 m
- True Width: 8.73 m
- From: 224.3 m
- To: 234 m
- Hole Depth: 312 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM124:224.3-234.0
- Mining Method: mixed

#### Location

- Easting: 384116
- Northing: 6945834
- CRS: unknown
- Azimuth: 50 °
- Dip: -62 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Metal Eq. Grade: 1.06
- Metal Eq. Unit: % CuEq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The intercept of 0.74% Cu over 9.7m is a strong grade for an IOCG deposit, indicating significant mineralization.

- Positive factor: Strong copper grade for IOCG deposit type

- Positive factor: True width estimated at >90% of reported length

Evidence · table

> 0.74

Context: 9.7

### 26SCM124

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-16)

Minto Mine · gold

#### Identity

- Hole ID: 26SCM124
- Project: Minto Mine
- Commodity: gold
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.38
- Grade Unit: g/t
- Intercept: 9.7 m
- True Width: 8.73 m
- From: 224.3 m
- To: 234 m
- Hole Depth: 312 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM124:224.3-234.0
- Mining Method: mixed

#### Location

- Easting: 384116
- Northing: 6945834
- CRS: unknown
- Azimuth: 50 °
- Dip: -62 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The gold grade of 0.38 g/t over 9.7m is a moderate grade for an IOCG deposit, contributing to the polymetallic nature of the mineralization.

- Positive factor: Moderate gold grade for IOCG deposit type

- Positive factor: True width estimated at >90% of reported length

Evidence · table

> 0.38

Context: 9.7

### 26SCM124

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-17)

Minto Mine · silver

#### Identity

- Hole ID: 26SCM124
- Project: Minto Mine
- Commodity: silver
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 3.92
- Grade Unit: g/t
- Intercept: 9.7 m
- True Width: 8.73 m
- From: 224.3 m
- To: 234 m
- Hole Depth: 312 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM124:224.3-234.0
- Mining Method: mixed

#### Location

- Easting: 384116
- Northing: 6945834
- CRS: unknown
- Azimuth: 50 °
- Dip: -62 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The silver grade of 3.92 g/t over 9.7m is a weak grade for an IOCG deposit, but contributes to the overall polymetallic nature of the mineralization.

- Positive factor: True width estimated at >90% of reported length

Evidence · table

> 3.92

Context: 9.7

### 26SCM126

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-18)

Minto Mine · copper

#### Identity

- Hole ID: 26SCM126
- Project: Minto Mine
- Commodity: copper
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.41
- Grade Unit: %
- Intercept: 86.8 m
- True Width: 78.12 m
- From: 244.2 m
- To: 331 m
- Hole Depth: 801 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM126:244.2-331.0
- Mining Method: mixed

#### Location

- Easting: 384725
- Northing: 6944709
- CRS: unknown
- Azimuth: 133 °
- Dip: -72 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Metal Eq. Grade: 0.58
- Metal Eq. Unit: % CuEq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The broad intercept of 0.41% Cu over 86.8m, part of the new 117 Lens discovery, represents significant mineralization with a strong grade-thickness product, indicating substantial resource potential.

- Positive factor: Moderate copper grade for IOCG deposit type

- Positive factor: Strong grade-thickness product \(35.5 %\*m\)

- Positive factor: Broad interval of mineralization

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of a new mineralized zone discovery \(117 Lens\)

Evidence · table

> 0.41

Context: 86.8

### 26SCM126

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-19)

Minto Mine · gold

#### Identity

- Hole ID: 26SCM126
- Project: Minto Mine
- Commodity: gold
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.2
- Grade Unit: g/t
- Intercept: 86.8 m
- True Width: 78.12 m
- From: 244.2 m
- To: 331 m
- Hole Depth: 801 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM126:244.2-331.0
- Mining Method: mixed

#### Location

- Easting: 384725
- Northing: 6944709
- CRS: unknown
- Azimuth: 133 °
- Dip: -72 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The gold grade of 0.20 g/t over 86.8m is a weak grade for an IOCG deposit, but contributes to the overall polymetallic nature of the new 117 Lens discovery.

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of a new mineralized zone discovery \(117 Lens\)

Evidence · table

> 0.20

Context: 86.8

### 26SCM126

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-20)

Minto Mine · silver

#### Identity

- Hole ID: 26SCM126
- Project: Minto Mine
- Commodity: silver
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 2.01
- Grade Unit: g/t
- Intercept: 86.8 m
- True Width: 78.12 m
- From: 244.2 m
- To: 331 m
- Hole Depth: 801 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM126:244.2-331.0
- Mining Method: mixed

#### Location

- Easting: 384725
- Northing: 6944709
- CRS: unknown
- Azimuth: 133 °
- Dip: -72 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The silver grade of 2.01 g/t over 86.8m is a weak grade for an IOCG deposit, but contributes to the overall polymetallic nature of the new 117 Lens discovery.

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of a new mineralized zone discovery \(117 Lens\)

Evidence · table

> 2.01

Context: 86.8

### 26SCM126

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-21)

Minto Mine · copper

#### Identity

- Hole ID: 26SCM126
- Project: Minto Mine
- Commodity: copper
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 1.27
- Grade Unit: %
- Intercept: 12.6 m
- True Width: 11.34 m
- From: 268.8 m
- To: 281.4 m
- Hole Depth: 801 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM126:268.8-281.4
- Mining Method: mixed

#### Location

- Easting: 384725
- Northing: 6944709
- CRS: unknown
- Azimuth: 133 °
- Dip: -72 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Metal Eq. Grade: 1.98
- Metal Eq. Unit: % CuEq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The intercept of 1.27% Cu over 12.6m is an exceptional grade for an IOCG deposit with a strong grade-thickness product, representing a high-grade sub-interval within the new 117 Lens discovery.

- Positive factor: Exceptional copper grade for IOCG deposit type

- Positive factor: Strong grade-thickness product \(16.0 %\*m\)

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of a new mineralized zone discovery \(117 Lens\)

Evidence · table

> 1.27

Context: 12.6

### 26SCM126

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-22)

Minto Mine · gold

#### Identity

- Hole ID: 26SCM126
- Project: Minto Mine
- Commodity: gold
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.89
- Grade Unit: g/t
- Intercept: 12.6 m
- True Width: 11.34 m
- From: 268.8 m
- To: 281.4 m
- Hole Depth: 801 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM126:268.8-281.4
- Mining Method: mixed

#### Location

- Easting: 384725
- Northing: 6944709
- CRS: unknown
- Azimuth: 133 °
- Dip: -72 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The gold grade of 0.89 g/t over 12.6m is a moderate grade for an IOCG deposit, contributing to the high-grade sub-interval within the new 117 Lens discovery.

- Positive factor: Moderate gold grade for IOCG deposit type

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of a new mineralized zone discovery \(117 Lens\)

Evidence · table

> 0.89

Context: 12.6

### 26SCM126

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-23)

Minto Mine · silver

#### Identity

- Hole ID: 26SCM126
- Project: Minto Mine
- Commodity: silver
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 5.91
- Grade Unit: g/t
- Intercept: 12.6 m
- True Width: 11.34 m
- From: 268.8 m
- To: 281.4 m
- Hole Depth: 801 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM126:268.8-281.4
- Mining Method: mixed

#### Location

- Easting: 384725
- Northing: 6944709
- CRS: unknown
- Azimuth: 133 °
- Dip: -72 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The silver grade of 5.91 g/t over 12.6m is a weak grade for an IOCG deposit, but contributes to the overall polymetallic nature of the high-grade sub-interval within the new 117 Lens discovery.

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of a new mineralized zone discovery \(117 Lens\)

Evidence · table

> 5.91

Context: 12.6

### 26SCM128

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-24)

Minto Mine · copper

#### Identity

- Hole ID: 26SCM128
- Project: Minto Mine
- Commodity: copper
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 2.36
- Grade Unit: %
- Intercept: 5.8 m
- True Width: 5.22 m
- From: 241.8 m
- To: 247.6 m
- Hole Depth: 681.75 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM128:241.8-247.6
- Mining Method: mixed

#### Location

- Easting: 384965
- Northing: 6945144
- CRS: unknown
- Azimuth: 73 °
- Dip: -71 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Metal Eq. Grade: 3.04
- Metal Eq. Unit: % CuEq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The intercept of 2.36% Cu over 5.8m is an exceptional grade for an IOCG deposit with a strong grade-thickness product, indicating significant high-grade mineralization in a step-out hole.

- Positive factor: Exceptional copper grade for IOCG deposit type

- Positive factor: Strong grade-thickness product \(13.69 %\*m\)

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of step-out drilling expanding known resources

Evidence · table

> 2.36

Context: 5.8

### 26SCM128

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-25)

Minto Mine · gold

#### Identity

- Hole ID: 26SCM128
- Project: Minto Mine
- Commodity: gold
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.85
- Grade Unit: g/t
- Intercept: 5.8 m
- True Width: 5.22 m
- From: 241.8 m
- To: 247.6 m
- Hole Depth: 681.75 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM128:241.8-247.6
- Mining Method: mixed

#### Location

- Easting: 384965
- Northing: 6945144
- CRS: unknown
- Azimuth: 73 °
- Dip: -71 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The gold grade of 0.85 g/t over 5.8m is a moderate grade for an IOCG deposit, contributing to the high-grade mineralization in a step-out hole.

- Positive factor: Moderate gold grade for IOCG deposit type

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of step-out drilling expanding known resources

Evidence · table

> 0.85

Context: 5.8

### 26SCM128

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-26)

Minto Mine · silver

#### Identity

- Hole ID: 26SCM128
- Project: Minto Mine
- Commodity: silver
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 5.44
- Grade Unit: g/t
- Intercept: 5.8 m
- True Width: 5.22 m
- From: 241.8 m
- To: 247.6 m
- Hole Depth: 681.75 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM128:241.8-247.6
- Mining Method: mixed

#### Location

- Easting: 384965
- Northing: 6945144
- CRS: unknown
- Azimuth: 73 °
- Dip: -71 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The silver grade of 5.44 g/t over 5.8m is a weak grade for an IOCG deposit, but contributes to the overall polymetallic nature of the high-grade mineralization in a step-out hole.

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of step-out drilling expanding known resources

Evidence · table

> 5.44

Context: 5.8

### 26SCM128

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-27)

Minto Mine · copper

#### Identity

- Hole ID: 26SCM128
- Project: Minto Mine
- Commodity: copper
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 1.4
- Grade Unit: %
- Intercept: 12.1 m
- True Width: 10.89 m
- From: 337 m
- To: 349.1 m
- Hole Depth: 681.75 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM128:337.0-349.1
- Mining Method: mixed

#### Location

- Easting: 384965
- Northing: 6945144
- CRS: unknown
- Azimuth: 73 °
- Dip: -71 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### 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: 2026-05-11T00:00:00.000Z

Reasoning: The intercept of 1.40% Cu over 12.1m is an exceptional grade for an IOCG deposit with a strong grade-thickness product, indicating significant high-grade mineralization in a step-out hole.

- Positive factor: Exceptional copper grade for IOCG deposit type

- Positive factor: Strong grade-thickness product \(16.94 %\*m\)

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of step-out drilling expanding known resources

Evidence · table

> 1.40

Context: 12.1

### 26SCM128

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-28)

Minto Mine · gold

#### Identity

- Hole ID: 26SCM128
- Project: Minto Mine
- Commodity: gold
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.51
- Grade Unit: g/t
- Intercept: 12.1 m
- True Width: 10.89 m
- From: 337 m
- To: 349.1 m
- Hole Depth: 681.75 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM128:337.0-349.1
- Mining Method: mixed

#### Location

- Easting: 384965
- Northing: 6945144
- CRS: unknown
- Azimuth: 73 °
- Dip: -71 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The gold grade of 0.51 g/t over 12.1m is a strong grade for an IOCG deposit, contributing to the high-grade mineralization in a step-out hole.

- Positive factor: Strong gold grade for IOCG deposit type

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of step-out drilling expanding known resources

Evidence · table

> 0.51

Context: 12.1

### 26SCM128

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-29)

Minto Mine · silver

#### Identity

- Hole ID: 26SCM128
- Project: Minto Mine
- Commodity: silver
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 4.59
- Grade Unit: g/t
- Intercept: 12.1 m
- True Width: 10.89 m
- From: 337 m
- To: 349.1 m
- Hole Depth: 681.75 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM128:337.0-349.1
- Mining Method: mixed

#### Location

- Easting: 384965
- Northing: 6945144
- CRS: unknown
- Azimuth: 73 °
- Dip: -71 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The silver grade of 4.59 g/t over 12.1m is a weak grade for an IOCG deposit, but contributes to the overall polymetallic nature of the high-grade mineralization in a step-out hole.

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of step-out drilling expanding known resources

Evidence · table

> 4.59

Context: 12.1

### 26SCM128

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-30)

Minto Mine · copper

#### Identity

- Hole ID: 26SCM128
- Project: Minto Mine
- Commodity: copper
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 2.57
- Grade Unit: %
- Intercept: 9.1 m
- True Width: 8.19 m
- From: 476.8 m
- To: 486 m
- Hole Depth: 681.75 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM128:476.8-486.0
- Mining Method: mixed

#### Location

- Easting: 384965
- Northing: 6945144
- CRS: unknown
- Azimuth: 73 °
- Dip: -71 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Metal Eq. Grade: 3.13
- Metal Eq. Unit: % CuEq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The intercept of 2.57% Cu over 9.1m is an exceptional grade for an IOCG deposit with a strong grade-thickness product, indicating significant high-grade mineralization in a step-out hole.

- Positive factor: Exceptional copper grade for IOCG deposit type

- Positive factor: Strong grade-thickness product \(23.39 %\*m\)

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of step-out drilling expanding known resources

Evidence · table

> 2.57

Context: 9.1

### 26SCM128

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-31)

Minto Mine · gold

#### Identity

- Hole ID: 26SCM128
- Project: Minto Mine
- Commodity: gold
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.66
- Grade Unit: g/t
- Intercept: 9.1 m
- True Width: 8.19 m
- From: 476.8 m
- To: 486 m
- Hole Depth: 681.75 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM128:476.8-486.0
- Mining Method: mixed

#### Location

- Easting: 384965
- Northing: 6945144
- CRS: unknown
- Azimuth: 73 °
- Dip: -71 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The gold grade of 0.66 g/t over 9.1m is a strong grade for an IOCG deposit, contributing to the high-grade mineralization in a step-out hole.

- Positive factor: Strong gold grade for IOCG deposit type

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of step-out drilling expanding known resources

Evidence · table

> 0.66

Context: 9.1

### 26SCM128

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-32)

Minto Mine · silver

#### Identity

- Hole ID: 26SCM128
- Project: Minto Mine
- Commodity: silver
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 7.66
- Grade Unit: g/t
- Intercept: 9.1 m
- True Width: 8.19 m
- From: 476.8 m
- To: 486 m
- Hole Depth: 681.75 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM128:476.8-486.0
- Mining Method: mixed

#### Location

- Easting: 384965
- Northing: 6945144
- CRS: unknown
- Azimuth: 73 °
- Dip: -71 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The silver grade of 7.66 g/t over 9.1m is a weak grade for an IOCG deposit, but contributes to the overall polymetallic nature of the high-grade mineralization in a step-out hole.

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of step-out drilling expanding known resources

Evidence · table

> 7.66

Context: 9.1

### 26SCM138

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-33)

Minto Mine · copper

#### Identity

- Hole ID: 26SCM138
- Project: Minto Mine
- Commodity: copper
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 1
- Grade Unit: %
- Intercept: 4.8 m
- True Width: 4.32 m
- From: 72 m
- To: 76.8 m
- Hole Depth: 428.36 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM138:72.0-76.8
- Mining Method: mixed

#### Location

- Easting: 384725
- Northing: 6944707
- CRS: unknown
- Azimuth: 72 °
- Dip: -73 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Metal Eq. Grade: 1.34
- Metal Eq. Unit: % CuEq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The intercept of 1.00% Cu over 4.8m is an exceptional grade for an IOCG deposit, contributing positively to the new 117 Lens discovery.

- Positive factor: Exceptional copper grade for IOCG deposit type

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of a new mineralized zone discovery \(117 Lens\)

Evidence · table

> 1.00

Context: 4.8

### 26SCM138

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-34)

Minto Mine · gold

#### Identity

- Hole ID: 26SCM138
- Project: Minto Mine
- Commodity: gold
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.41
- Grade Unit: g/t
- Intercept: 4.8 m
- True Width: 4.32 m
- From: 72 m
- To: 76.8 m
- Hole Depth: 428.36 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM138:72.0-76.8
- Mining Method: mixed

#### Location

- Easting: 384725
- Northing: 6944707
- CRS: unknown
- Azimuth: 72 °
- Dip: -73 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The gold grade of 0.41 g/t over 4.8m is a moderate grade for an IOCG deposit, contributing to the polymetallic nature of the new 117 Lens discovery.

- Positive factor: Moderate gold grade for IOCG deposit type

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of a new mineralized zone discovery \(117 Lens\)

Evidence · table

> 0.41

Context: 4.8

### 26SCM138

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-35)

Minto Mine · silver

#### Identity

- Hole ID: 26SCM138
- Project: Minto Mine
- Commodity: silver
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 4.47
- Grade Unit: g/t
- Intercept: 4.8 m
- True Width: 4.32 m
- From: 72 m
- To: 76.8 m
- Hole Depth: 428.36 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM138:72.0-76.8
- Mining Method: mixed

#### Location

- Easting: 384725
- Northing: 6944707
- CRS: unknown
- Azimuth: 72 °
- Dip: -73 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The silver grade of 4.47 g/t over 4.8m is a weak grade for an IOCG deposit, but contributes to the overall polymetallic nature of the new 117 Lens discovery.

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of a new mineralized zone discovery \(117 Lens\)

Evidence · table

> 4.47

Context: 4.8

### 26SCM138

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-36)

Minto Mine · copper

#### Identity

- Hole ID: 26SCM138
- Project: Minto Mine
- Commodity: copper
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 1.05
- Grade Unit: %
- Intercept: 13 m
- True Width: 11.7 m
- From: 312.7 m
- To: 325.7 m
- Hole Depth: 428.36 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM138:312.7-325.7
- Mining Method: mixed

#### Location

- Easting: 384725
- Northing: 6944707
- CRS: unknown
- Azimuth: 72 °
- Dip: -73 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Metal Eq. Grade: 1.48
- Metal Eq. Unit: % CuEq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The intercept of 1.05% Cu over 13.0m is an exceptional grade for an IOCG deposit with a strong grade-thickness product, contributing positively to the new 117 Lens discovery.

- Positive factor: Exceptional copper grade for IOCG deposit type

- Positive factor: Strong grade-thickness product \(13.65 %\*m\)

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of a new mineralized zone discovery \(117 Lens\)

Evidence · table

> 1.05

Context: 13.0

### 26SCM138

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-37)

Minto Mine · gold

#### Identity

- Hole ID: 26SCM138
- Project: Minto Mine
- Commodity: gold
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.53
- Grade Unit: g/t
- Intercept: 13 m
- True Width: 11.7 m
- From: 312.7 m
- To: 325.7 m
- Hole Depth: 428.36 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM138:312.7-325.7
- Mining Method: mixed

#### Location

- Easting: 384725
- Northing: 6944707
- CRS: unknown
- Azimuth: 72 °
- Dip: -73 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The gold grade of 0.53 g/t over 13.0m is a strong grade for an IOCG deposit, contributing to the polymetallic nature of the new 117 Lens discovery.

- Positive factor: Strong gold grade for IOCG deposit type

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of a new mineralized zone discovery \(117 Lens\)

Evidence · table

> 0.53

Context: 13.0

### 26SCM138

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-38)

Minto Mine · silver

#### Identity

- Hole ID: 26SCM138
- Project: Minto Mine
- Commodity: silver
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 3.97
- Grade Unit: g/t
- Intercept: 13 m
- True Width: 11.7 m
- From: 312.7 m
- To: 325.7 m
- Hole Depth: 428.36 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM138:312.7-325.7
- Mining Method: mixed

#### Location

- Easting: 384725
- Northing: 6944707
- CRS: unknown
- Azimuth: 72 °
- Dip: -73 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The silver grade of 3.97 g/t over 13.0m is a weak grade for an IOCG deposit, but contributes to the overall polymetallic nature of the new 117 Lens discovery.

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of a new mineralized zone discovery \(117 Lens\)

Evidence · table

> 3.97

Context: 13.0

### 26SCM140

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-39)

Minto Mine · copper

#### Identity

- Hole ID: 26SCM140
- Project: Minto Mine
- Commodity: copper
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.65
- Grade Unit: %
- Intercept: 5.2 m
- True Width: 4.42 m
- From: 34.1 m
- To: 39.3 m
- Hole Depth: 165 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM140:34.1-39.3
- Mining Method: mixed

#### Location

- Easting: 384745
- Northing: 6943398
- CRS: unknown
- Azimuth: 270 °
- Dip: -80 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

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

#### Compositing

- Cutoff Grade: 0.3
- Cutoff Unit: % CuEq

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The intercept of 0.65% Cu over 5.2m is a strong grade for an IOCG deposit and is above the stated cutoff for the Ridgetop zone, indicating economic potential.

- Positive factor: Strong copper grade for IOCG deposit type

- Positive factor: True width estimated at 85-90% of reported length

- Positive factor: Above stated cutoff grade for the zone

Evidence · table

> 0.65

Context: 5.2

### 26SCM140

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-40)

Minto Mine · gold

#### Identity

- Hole ID: 26SCM140
- Project: Minto Mine
- Commodity: gold
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.12
- Grade Unit: g/t
- Intercept: 5.2 m
- True Width: 4.42 m
- From: 34.1 m
- To: 39.3 m
- Hole Depth: 165 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM140:34.1-39.3
- Mining Method: mixed

#### Location

- Easting: 384745
- Northing: 6943398
- CRS: unknown
- Azimuth: 270 °
- Dip: -80 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The gold grade of 0.12 g/t over 5.2m is a weak grade for an IOCG deposit, but contributes to the overall polymetallic nature of the mineralization.

- Positive factor: True width estimated at 85-90% of reported length

Evidence · table

> 0.12

Context: 5.2

### 26SCM140

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-41)

Minto Mine · silver

#### Identity

- Hole ID: 26SCM140
- Project: Minto Mine
- Commodity: silver
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 1.96
- Grade Unit: g/t
- Intercept: 5.2 m
- True Width: 4.42 m
- From: 34.1 m
- To: 39.3 m
- Hole Depth: 165 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM140:34.1-39.3
- Mining Method: mixed

#### Location

- Easting: 384745
- Northing: 6943398
- CRS: unknown
- Azimuth: 270 °
- Dip: -80 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The silver grade of 1.96 g/t over 5.2m is a weak grade for an IOCG deposit, but contributes to the overall polymetallic nature of the mineralization.

- Positive factor: True width estimated at 85-90% of reported length

Evidence · table

> 1.96

Context: 5.2

### 26SCM142

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-42)

Minto Mine · copper

#### Identity

- Hole ID: 26SCM142
- Project: Minto Mine
- Commodity: copper
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 2.93
- Grade Unit: %
- Intercept: 5 m
- True Width: 4.5 m
- From: 325.4 m
- To: 330.4 m
- Hole Depth: 465 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM142:325.4-330.4
- Mining Method: mixed

#### Location

- Easting: 384722
- Northing: 6944706
- CRS: unknown
- Azimuth: 35 °
- Dip: -75 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Metal Eq. Grade: 4.19
- Metal Eq. Unit: % CuEq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The intercept of 2.93% Cu over 5.0m is an exceptional grade for an IOCG deposit with a strong grade-thickness product, representing a high-grade result from the new 117 Lens discovery.

- Positive factor: Exceptional copper grade for IOCG deposit type

- Positive factor: Strong grade-thickness product \(14.65 %\*m\)

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of a new mineralized zone discovery \(117 Lens\)

Evidence · table

> 2.93

Context: 5.0

### 26SCM142

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-43)

Minto Mine · gold

#### Identity

- Hole ID: 26SCM142
- Project: Minto Mine
- Commodity: gold
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 1.5
- Grade Unit: g/t
- Intercept: 5 m
- True Width: 4.5 m
- From: 325.4 m
- To: 330.4 m
- Hole Depth: 465 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM142:325.4-330.4
- Mining Method: mixed

#### Location

- Easting: 384722
- Northing: 6944706
- CRS: unknown
- Azimuth: 35 °
- Dip: -75 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The gold grade of 1.50 g/t over 5.0m is an exceptional grade for an IOCG deposit, contributing to the high-grade polymetallic nature of the new 117 Lens discovery.

- Positive factor: Exceptional gold grade for IOCG deposit type

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of a new mineralized zone discovery \(117 Lens\)

Evidence · table

> 1.50

Context: 5.0

### 26SCM142

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-44)

Minto Mine · silver

#### Identity

- Hole ID: 26SCM142
- Project: Minto Mine
- Commodity: silver
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 16.37
- Grade Unit: g/t
- Intercept: 5 m
- True Width: 4.5 m
- From: 325.4 m
- To: 330.4 m
- Hole Depth: 465 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM142:325.4-330.4
- Mining Method: mixed

#### Location

- Easting: 384722
- Northing: 6944706
- CRS: unknown
- Azimuth: 35 °
- Dip: -75 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The silver grade of 16.37 g/t over 5.0m is a weak grade for an IOCG deposit, but contributes to the overall polymetallic nature of the new 117 Lens discovery.

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of a new mineralized zone discovery \(117 Lens\)

Evidence · table

> 16.37

Context: 5.0

### 26SCM146

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-45)

Minto Mine · copper

#### Identity

- Hole ID: 26SCM146
- Project: Minto Mine
- Commodity: copper
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.88
- Grade Unit: %
- Intercept: 7.5 m
- True Width: 6.75 m
- From: 279.3 m
- To: 286.8 m
- Hole Depth: 656.5 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM146:279.3-286.8
- Mining Method: mixed

#### Location

- Easting: 384966
- Northing: 6945142
- CRS: unknown
- Azimuth: 44 °
- Dip: -75 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Metal Eq. Grade: 1.04
- Metal Eq. Unit: % CuEq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The intercept of 0.88% Cu over 7.5m is a strong grade for an IOCG deposit, contributing to resource expansion, though at a lower grade than a nearby hole.

- Positive factor: Strong copper grade for IOCG deposit type

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of step-out drilling expanding known resources

- Negative factor: Grade lower than adjacent hole 26SCM128

Evidence · table

> 0.88

Context: 7.5

### 26SCM146

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-46)

Minto Mine · gold

#### Identity

- Hole ID: 26SCM146
- Project: Minto Mine
- Commodity: gold
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.19
- Grade Unit: g/t
- Intercept: 7.5 m
- True Width: 6.75 m
- From: 279.3 m
- To: 286.8 m
- Hole Depth: 656.5 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM146:279.3-286.8
- Mining Method: mixed

#### Location

- Easting: 384966
- Northing: 6945142
- CRS: unknown
- Azimuth: 44 °
- Dip: -75 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The gold grade of 0.19 g/t over 7.5m is a weak grade for an IOCG deposit, but contributes to the overall polymetallic nature of the mineralization in a step-out hole.

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of step-out drilling expanding known resources

Evidence · table

> 0.19

Context: 7.5

### 26SCM146

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-47)

Minto Mine · silver

#### Identity

- Hole ID: 26SCM146
- Project: Minto Mine
- Commodity: silver
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 2.67
- Grade Unit: g/t
- Intercept: 7.5 m
- True Width: 6.75 m
- From: 279.3 m
- To: 286.8 m
- Hole Depth: 656.5 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM146:279.3-286.8
- Mining Method: mixed

#### Location

- Easting: 384966
- Northing: 6945142
- CRS: unknown
- Azimuth: 44 °
- Dip: -75 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The silver grade of 2.67 g/t over 7.5m is a weak grade for an IOCG deposit, but contributes to the overall polymetallic nature of the mineralization in a step-out hole.

- Positive factor: True width estimated at >90% of reported length

- Positive factor: Part of step-out drilling expanding known resources

Evidence · table

> 2.67

Context: 7.5

### 26SCM154

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-48)

Minto Mine · copper

#### Identity

- Hole ID: 26SCM154
- Project: Minto Mine
- Commodity: copper
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.3
- Grade Unit: %
- Intercept: 36.1 m
- True Width: 32.49 m
- From: 216.1 m
- To: 252.2 m
- Hole Depth: 330 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM154:216.1-252.2
- Mining Method: mixed

#### Location

- Easting: 384123
- Northing: 6946069
- CRS: unknown
- Azimuth: 189 °
- Dip: -73 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Metal Eq. Grade: 0.38
- Metal Eq. Unit: % CuEq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The intercept of 0.30% Cu over 36.1m is a moderate grade for an IOCG deposit with a strong grade-thickness product, contributing to the Minto North zone, though at a lower grade than some previous results.

- Positive factor: Moderate copper grade for IOCG deposit type

- Positive factor: Strong grade-thickness product \(10.83 %\*m\)

- Positive factor: True width estimated at >90% of reported length

- Negative factor: Lower grade than some previous results in the Minto North area

Evidence · table

> 0.30

Context: 36.1

### 26SCM154

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-49)

Minto Mine · gold

#### Identity

- Hole ID: 26SCM154
- Project: Minto Mine
- Commodity: gold
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.09
- Grade Unit: g/t
- Intercept: 36.1 m
- True Width: 32.49 m
- From: 216.1 m
- To: 252.2 m
- Hole Depth: 330 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM154:216.1-252.2
- Mining Method: mixed

#### Location

- Easting: 384123
- Northing: 6946069
- CRS: unknown
- Azimuth: 189 °
- Dip: -73 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The gold grade of 0.09 g/t over 36.1m is a weak grade for an IOCG deposit, but contributes to the overall polymetallic nature of the mineralization.

- Positive factor: True width estimated at >90% of reported length

Evidence · table

> 0.09

Context: 36.1

### 26SCM154

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-50)

Minto Mine · silver

#### Identity

- Hole ID: 26SCM154
- Project: Minto Mine
- Commodity: silver
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 1.24
- Grade Unit: g/t
- Intercept: 36.1 m
- True Width: 32.49 m
- From: 216.1 m
- To: 252.2 m
- Hole Depth: 330 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM154:216.1-252.2
- Mining Method: mixed

#### Location

- Easting: 384123
- Northing: 6946069
- CRS: unknown
- Azimuth: 189 °
- Dip: -73 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The silver grade of 1.24 g/t over 36.1m is a weak grade for an IOCG deposit, but contributes to the overall polymetallic nature of the mineralization.

- Positive factor: True width estimated at >90% of reported length

Evidence · table

> 1.24

Context: 36.1

### 26SCM155

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-51)

Minto Mine · copper

#### Identity

- Hole ID: 26SCM155
- Project: Minto Mine
- Commodity: copper
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.84
- Grade Unit: %
- Intercept: 5.5 m
- True Width: 4.675 m
- From: 177.5 m
- To: 183 m
- Hole Depth: 339 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM155:177.5-183.0
- Mining Method: mixed

#### Location

- Easting: 384575
- Northing: 6943971
- CRS: unknown
- Azimuth: 260 °
- Dip: -75 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

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

#### Compositing

- Cutoff Grade: 0.3
- Cutoff Unit: % CuEq

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The intercept of 0.84% Cu over 5.5m is a strong grade for an IOCG deposit and is above the stated cutoff for the Area 118 zone, indicating economic potential.

- Positive factor: Strong copper grade for IOCG deposit type

- Positive factor: True width estimated at 85-90% of reported length

- Positive factor: Above stated cutoff grade for the zone

Evidence · table

> 0.84

Context: 5.5

### 26SCM155

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-52)

Minto Mine · gold

#### Identity

- Hole ID: 26SCM155
- Project: Minto Mine
- Commodity: gold
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.11
- Grade Unit: g/t
- Intercept: 5.5 m
- True Width: 4.675 m
- From: 177.5 m
- To: 183 m
- Hole Depth: 339 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM155:177.5-183.0
- Mining Method: mixed

#### Location

- Easting: 384575
- Northing: 6943971
- CRS: unknown
- Azimuth: 260 °
- Dip: -75 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The gold grade of 0.11 g/t over 5.5m is a weak grade for an IOCG deposit, but contributes to the overall polymetallic nature of the mineralization.

- Positive factor: True width estimated at 85-90% of reported length

Evidence · table

> 0.11

Context: 5.5

### 26SCM155

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-53)

Minto Mine · silver

#### Identity

- Hole ID: 26SCM155
- Project: Minto Mine
- Commodity: silver
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 1.91
- Grade Unit: g/t
- Intercept: 5.5 m
- True Width: 4.675 m
- From: 177.5 m
- To: 183 m
- Hole Depth: 339 m

#### Classification

- Deposit Type: iocg
- Program: mixed
- Sample Type: drill
- Group ID: 26SCM155:177.5-183.0
- Mining Method: mixed

#### Location

- Easting: 384575
- Northing: 6943971
- CRS: unknown
- Azimuth: 260 °
- Dip: -75 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: ALS
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: certified reference material, coarse blank materials, field duplicate analysis, standard laboratory QAQC procedures

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The silver grade of 1.91 g/t over 5.5m is a weak grade for an IOCG deposit, but contributes to the overall polymetallic nature of the mineralization.

- Positive factor: True width estimated at 85-90% of reported length

Evidence · table

> 1.91

Context: 5.5

### Fact 55

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-54)

Minto Project · copper

#### Identity

- Project: Minto Project
- Commodity: copper
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 1.048
- Grade Unit: %

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The total inferred resource of 23.658 Mt at 1.048% Cu represents an exceptional overall copper grade, adding significantly to the project's potential but with lower geological confidence.

- Positive factor: Exceptional overall copper grade for inferred resource

- Positive factor: NI 43-101 compliant and QP signed off

- Negative factor: Inferred category has lower geological confidence

Evidence · table

> 1.048

Context: 23,658

### Fact 56

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-55)

Minto Project · gold

#### Identity

- Project: Minto Project
- Commodity: gold
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.387
- Grade Unit: g/t

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The total inferred resource includes 0.387 g/t Au, which is a moderate overall gold grade, contributing to the polymetallic value but with lower confidence.

- Positive factor: Moderate overall gold grade for inferred resource

- Positive factor: NI 43-101 compliant and QP signed off

- Negative factor: Inferred category has lower geological confidence

Evidence · table

> 0.387

Context: 23,658

### Fact 57

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-56)

Minto Project · silver

#### Identity

- Project: Minto Project
- Commodity: silver
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 3.9
- Grade Unit: g/t

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The total inferred resource includes 3.9 g/t Ag, which is a weak overall silver grade, but contributes to the overall polymetallic value of the resource with lower confidence.

- Positive factor: NI 43-101 compliant and QP signed off

- Negative factor: Inferred category has lower geological confidence

Evidence · table

> 3.9

Context: 23,658

### Fact 58

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-57)

Minto Project · nsr

#### Identity

- Project: Minto Project
- Commodity: nsr
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 123.48
- Grade Unit: CDN$/tonne

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: The total inferred resource shows a high NSR of C$123.48/tonne, indicating good economic prospects for the material, though with lower confidence due to its inferred classification.

- Positive factor: High NSR value indicates strong economic potential per tonne

- Positive factor: NI 43-101 compliant and QP signed off

- Negative factor: Inferred category has lower geological confidence

Evidence · table

> $123.48

Context: 23,658

### Incl.

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-58)

Minto Mine · copper

#### Identity

- Hole ID: Incl.
- Project: Minto Mine
- Commodity: copper
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 1.27
- Grade Unit: %
- Intercept: 12.6 m
- From: 268.8 m
- To: 281.4 m

#### Classification

- Deposit Type: iocg
- Sample Type: drill
- Group ID: Incl.:268.8-281.4
- Mining Method: mixed

#### Location

- CRS: unknown

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

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 16.0 %·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/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-59)

Minto Mine · gold

#### Identity

- Hole ID: Incl.
- Project: Minto Mine
- Commodity: gold
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.89
- Grade Unit: g/t
- Intercept: 12.6 m
- From: 268.8 m
- To: 281.4 m

#### Classification

- Deposit Type: iocg
- Sample Type: drill
- Group ID: Incl.:268.8-281.4
- Mining Method: mixed

#### Location

- CRS: unknown

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: Expanded from assay table. 0.89 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 11.2 g/t·m is weak.

- 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/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-60)

Minto Mine · silver

#### Identity

- Hole ID: Incl.
- Project: Minto Mine
- Commodity: silver
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 5.91
- Grade Unit: g/t
- Intercept: 12.6 m
- From: 268.8 m
- To: 281.4 m

#### Classification

- Deposit Type: iocg
- Sample Type: drill
- Group ID: Incl.:268.8-281.4
- Mining Method: mixed

#### Location

- CRS: unknown

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: Expanded from assay table. 5.91 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 74.5 g/t·m is below.

- Negative factor: 5.91 g/t silver is below the weak threshold \(30 g/t\) on the default band.

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

Evidence · table

> 5.91

Context: Incl.

### and

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-61)

Minto Mine · copper

#### Identity

- Hole ID: and
- Project: Minto Mine
- Commodity: copper
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 1.4
- Grade Unit: %
- Intercept: 12.1 m
- From: 337 m
- To: 349.1 m

#### Classification

- Deposit Type: iocg
- Sample Type: drill
- Group ID: and:337-349.1
- Mining Method: mixed

#### Location

- CRS: unknown

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: Expanded from assay table. 1.4 % copper is exceptional against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 16.9 %·m is below \(grade alone is exceptional; the better of the two is used\).

- Positive factor: 1.4 % copper is exceptional on the iocg deposit band.

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

Evidence · table

> 1.40

Context: and

### and

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-62)

Minto Mine · gold

#### Identity

- Hole ID: and
- Project: Minto Mine
- Commodity: gold
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.51
- Grade Unit: g/t
- Intercept: 12.1 m
- From: 337 m
- To: 349.1 m

#### Classification

- Deposit Type: iocg
- Sample Type: drill
- Group ID: and:337-349.1
- Mining Method: mixed

#### Location

- CRS: unknown

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: Expanded from assay table. 0.51 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 6.2 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

> 0.51

Context: and

### and

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-63)

Minto Mine · silver

#### Identity

- Hole ID: and
- Project: Minto Mine
- Commodity: silver
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 4.59
- Grade Unit: g/t
- Intercept: 12.1 m
- From: 337 m
- To: 349.1 m

#### Classification

- Deposit Type: iocg
- Sample Type: drill
- Group ID: and:337-349.1
- Mining Method: mixed

#### Location

- CRS: unknown

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: Expanded from assay table. 4.59 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 55.5 g/t·m is below.

- Negative factor: 4.59 g/t silver is below the weak threshold \(30 g/t\) on the default band.

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

Evidence · table

> 4.59

Context: and

### and

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-64)

Minto Mine · copper

#### Identity

- Hole ID: and
- Project: Minto Mine
- Commodity: copper
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 2.57
- Grade Unit: %
- Intercept: 9.1 m
- From: 476.8 m
- To: 486 m

#### Classification

- Deposit Type: iocg
- Sample Type: drill
- Group ID: and:476.8-486
- Mining Method: mixed

#### Location

- CRS: unknown

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: Expanded from assay table. 2.57 % copper is exceptional against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 23.4 %·m is weak \(grade alone is exceptional; the better of the two is used\).

- Positive factor: 2.57 % copper is exceptional on the iocg deposit band.

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

Evidence · table

> 2.57

Context: and

### and

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-65)

Minto Mine · gold

#### Identity

- Hole ID: and
- Project: Minto Mine
- Commodity: gold
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.66
- Grade Unit: g/t
- Intercept: 9.1 m
- From: 476.8 m
- To: 486 m

#### Classification

- Deposit Type: iocg
- Sample Type: drill
- Group ID: and:476.8-486
- Mining Method: mixed

#### Location

- CRS: unknown

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: Expanded from assay table. 0.66 g/t gold is weak against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 6.0 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

> 0.66

Context: and

### and

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-66)

Minto Mine · silver

#### Identity

- Hole ID: and
- Project: Minto Mine
- Commodity: silver
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 7.66
- Grade Unit: g/t
- Intercept: 9.1 m
- From: 476.8 m
- To: 486 m

#### Classification

- Deposit Type: iocg
- Sample Type: drill
- Group ID: and:476.8-486
- Mining Method: mixed

#### Location

- CRS: unknown

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: Expanded from assay table. 7.66 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 69.7 g/t·m is below.

- Negative factor: 7.66 g/t silver is below the weak threshold \(30 g/t\) on the default band.

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

Evidence · table

> 7.66

Context: and

### and

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-67)

Minto Mine · copper

#### Identity

- Hole ID: and
- Project: Minto Mine
- Commodity: copper
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 1.05
- Grade Unit: %
- Intercept: 13 m
- From: 312.7 m
- To: 325.7 m

#### Classification

- Deposit Type: iocg
- Sample Type: drill
- Group ID: and:312.7-325.7
- Mining Method: mixed

#### Location

- CRS: unknown

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: Expanded from assay table. 1.05 % copper is exceptional against the iocg deposit band \[0.9, 0.5, 0.3, 0.2\] %. Grade×width 13.7 %·m is below \(grade alone is exceptional; the better of the two is used\).

- Positive factor: 1.05 % copper is exceptional on the iocg deposit band.

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

Evidence · table

> 1.05

Context: and

### and

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-68)

Minto Mine · gold

#### Identity

- Hole ID: and
- Project: Minto Mine
- Commodity: gold
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 0.53
- Grade Unit: g/t
- Intercept: 13 m
- From: 312.7 m
- To: 325.7 m

#### Classification

- Deposit Type: iocg
- Sample Type: drill
- Group ID: and:312.7-325.7
- Mining Method: mixed

#### Location

- CRS: unknown

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

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 6.9 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

> 0.53

Context: and

### and

[Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-discovers-a-new-mineralized-zone-and-commences-a-phase-2-drill-pr--fc90e54e-8ab8-4c37-94ad-cb75af10a253#fact-drill-facts-69)

Minto Mine · silver

#### Identity

- Hole ID: and
- Project: Minto Mine
- Commodity: silver
- Region: canada\_yt
- Reported Region: Yukon, Canada
- Ticker: SCMI

#### Geometry

- Grade: 3.97
- Grade Unit: g/t
- Intercept: 13 m
- From: 312.7 m
- To: 325.7 m

#### Classification

- Deposit Type: iocg
- Sample Type: drill
- Group ID: and:312.7-325.7
- Mining Method: mixed

#### Location

- CRS: unknown

#### Review

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

#### Dates

- Event date: 2026-05-11T00:00:00.000Z

Reasoning: Expanded from assay table. 3.97 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 51.6 g/t·m is below.

- Negative factor: 3.97 g/t silver is below the weak threshold \(30 g/t\) on the default band.

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

Evidence · table

> 3.97

Context: and

## 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.