# GR Silver Reports Its Best Ever Drill Results at San Marcial: 45.1 m at 1,623 g/t Ag, Including 8.25 m at 8,579 g/t Ag, in Hole SMS26-04

Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/gr-silver-reports-its-best-ever-drill-results-at-san-marcial-45-1-m-at-1-623-g-t--7ab565cc-8099-4cc9-a860-17448c446404

Original source: https://money.tmx.com/en/quote/GRSL/news/5223432871624581/gr-silver-reports-its-best-ever-drill-results-at-san-marcial-45-1-m-at-1-623-g-t

Publisher: tmx

Original announcement: 2026-05-19T21:47:00.000Z

Analysis by Minestarters Atlas

Atlas analysis published: Unknown date

Atlas analysis updated: Unknown date

- Company: GR Silver Mining Ltd.

- Ticker: GRSL

- Exchange: TSX

- Region: Mexico

- Primary commodity: Silver

- Secondary commodities: Gold, Lead, Zinc

- Document categories: Drill results

- Extracted: 2026-09-16 02:45:58 UTC

Narrative sentiment: 1.00 · Bullish

## Minestarters Atlas summary

GR Silver reported record-breaking drill results at the San Marcial project, highlighted by a 45.1 m true width intercept at 1,623 g/t Ag. The hole SMS26-04 included an exceptional 8.25 m sub-interval grading 8,579 g/t Ag, confirming high-grade continuity within structural inflection zones.

Reasoning: The intercept of 8.25 m at 8,579 g/t Ag is an exceptional bonanza grade for an epithermal system and represents the 'best ever' results for the project.

- Positive factor: Bonanza Intercept

- Positive factor: True Width Disclosed

- Positive factor: Step-Out Extension

- Positive factor: QA/QC Disclosed

Facts used in scoring: 20

## Classification and evidence

**Bonanza Intercept**

Polarity: positive

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

Why it applies: 8,579 g/t Ag is exceptionally high for an epithermal system.

Evidence · table

> 8,579

Context: 9.00

**True Width Disclosed**

Polarity: positive

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

Why it applies: True width is explicitly reported for all intercepts in Table 1.

Evidence · table

> 45.10

Context: 49.15

**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: Release details insertion of blanks, duplicates, and standards at SGS de Mexico.

Evidence · text

> insertion of blank, duplicate, and standard samples

**Step-Out Extension**

Polarity: positive

Definition: Mineralization extended beyond the previously known limit.

Why it applies: The results are part of the 2026 Step-Out Drilling Program.

Evidence · text

> Highlights of 2026 Step-Out Dri l l i ng

## Extracted facts

Stored fact records: 20. Some facts used in scoring do not have a stored record.

## Drill Results (20)

### SMS26-04

[Link to this fact](https://atlas-extractions.minestarters.com/news/gr-silver-reports-its-best-ever-drill-results-at-san-marcial-45-1-m-at-1-623-g-t--7ab565cc-8099-4cc9-a860-17448c446404#fact-drill-facts-0)

San Marcial · silver

#### Identity

- Hole ID: SMS26-04
- Project: San Marcial
- Commodity: silver
- Region: mexico
- Reported Region: mexico
- Ticker: GRSL

#### Geometry

- Grade: 1623
- Grade Unit: g/t
- Intercept: 45.1 m
- True Width: 45.1 m
- From: 267.85 m
- To: 317 m
- Intercept Depth: 267.85 m

#### Classification

- Deposit Type: epithermal
- Program: exploration
- Sample Type: drill
- Group ID: SMS26-04:267.85-317
- Mining Method: unknown

#### Location

- Location: SE Area
- Loc. Source: document

#### QA/QC

- Laboratory: SGS de México, S.A. de C.V.
- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Review

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

#### Dates

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

Reasoning: High-grade silver intercept in a step-out program.

- Positive factor: Step-Out Extension

Evidence · table

> 1,623

Context: 49.15

#### Tags used in scoring

**True Width Disclosed**

Polarity: positive

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

Why it applies: true\_width\_m is 45.1

**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: qaqc\_disclosed is true

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

### SMS26-04

[Link to this fact](https://atlas-extractions.minestarters.com/news/gr-silver-reports-its-best-ever-drill-results-at-san-marcial-45-1-m-at-1-623-g-t--7ab565cc-8099-4cc9-a860-17448c446404#fact-drill-facts-1)

San Marcial · gold

#### Identity

- Hole ID: SMS26-04
- Project: San Marcial
- Commodity: gold
- Region: mexico
- Reported Region: mexico
- Ticker: GRSL

#### Geometry

- Grade: 0.03
- Grade Unit: g/t
- Intercept: 45.1 m
- True Width: 45.1 m
- From: 267.85 m
- To: 317 m
- Intercept Depth: 267.85 m

#### Classification

- Deposit Type: epithermal
- Program: exploration
- Sample Type: drill
- Group ID: SMS26-04:267.85-317
- Mining Method: unknown

#### Location

- Location: SE Area
- Loc. Source: document

#### QA/QC

- Laboratory: SGS de México, S.A. de C.V.
- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Review

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

#### Dates

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

Reasoning: Trace gold grade.

Evidence · table

> 0.03

Context: 49.15

#### Tags used in scoring

**True Width Disclosed**

Polarity: positive

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

Why it applies: true\_width\_m is 45.1

**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: qaqc\_disclosed is true

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

### SMS26-04

[Link to this fact](https://atlas-extractions.minestarters.com/news/gr-silver-reports-its-best-ever-drill-results-at-san-marcial-45-1-m-at-1-623-g-t--7ab565cc-8099-4cc9-a860-17448c446404#fact-drill-facts-2)

San Marcial · silver

#### Identity

- Hole ID: SMS26-04
- Project: San Marcial
- Commodity: silver
- Region: mexico
- Reported Region: mexico
- Ticker: GRSL

#### Geometry

- Grade: 3846
- Grade Unit: g/t
- Intercept: 18.85 m
- True Width: 18.85 m
- From: 278 m
- To: 298.55 m
- Intercept Depth: 278 m

#### Classification

- Deposit Type: epithermal
- Program: exploration
- Sample Type: drill
- Group ID: SMS26-04:278-298.55
- Mining Method: unknown

#### Location

- Location: SE Area
- Loc. Source: document

#### QA/QC

- Laboratory: SGS de México, S.A. de C.V.
- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Review

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

#### Dates

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

Reasoning: Strong high-grade silver sub-interval.

- Positive factor: Step-Out Extension

Evidence · table

> 3,846

Context: 20.55

#### Tags used in scoring

**True Width Disclosed**

Polarity: positive

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

Why it applies: true\_width\_m is 18.85

**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: qaqc\_disclosed is true

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

### SMS26-04

[Link to this fact](https://atlas-extractions.minestarters.com/news/gr-silver-reports-its-best-ever-drill-results-at-san-marcial-45-1-m-at-1-623-g-t--7ab565cc-8099-4cc9-a860-17448c446404#fact-drill-facts-3)

San Marcial · silver

#### Identity

- Hole ID: SMS26-04
- Project: San Marcial
- Commodity: silver
- Region: mexico
- Reported Region: mexico
- Ticker: GRSL

#### Geometry

- Grade: 8579
- Grade Unit: g/t
- Intercept: 8.25 m
- True Width: 8.25 m
- From: 284.05 m
- To: 293.05 m
- Intercept Depth: 284.05 m

#### Classification

- Deposit Type: epithermal
- Program: exploration
- Sample Type: drill
- Group ID: SMS26-04:284.05-293.05
- Mining Method: unknown

#### Location

- Location: SE Area
- Loc. Source: document

#### QA/QC

- Laboratory: SGS de México, S.A. de C.V.
- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Review

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

#### Dates

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

Reasoning: Exceptional bonanza silver grade.

- Positive factor: Bonanza Intercept

- Positive factor: True Width Disclosed

Evidence · table

> 8,579

Context: 9.00

#### Tags used in scoring

**True Width Disclosed**

Polarity: positive

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

Why it applies: true\_width\_m is 8.25

**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: qaqc\_disclosed is true

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

### SMS26-04

[Link to this fact](https://atlas-extractions.minestarters.com/news/gr-silver-reports-its-best-ever-drill-results-at-san-marcial-45-1-m-at-1-623-g-t--7ab565cc-8099-4cc9-a860-17448c446404#fact-drill-facts-4)

San Marcial · silver

#### Identity

- Hole ID: SMS26-04
- Project: San Marcial
- Commodity: silver
- Region: mexico
- Reported Region: mexico
- Ticker: GRSL

#### Geometry

- Grade: 32
- Grade Unit: g/t
- Intercept: 20.6 m
- True Width: 20.6 m
- From: 328.6 m
- To: 349.95 m
- Intercept Depth: 328.6 m

#### Classification

- Deposit Type: epithermal
- Program: exploration
- Sample Type: drill
- Group ID: SMS26-04:328.6-349.95
- Mining Method: unknown

#### Location

- Location: SE Area
- Loc. Source: document

#### QA/QC

- Laboratory: SGS de México, S.A. de C.V.
- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Review

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

#### Dates

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

Reasoning: Lower grade silver intercept.

Evidence · table

> 32

Context: 21.35

#### Tags used in scoring

**True Width Disclosed**

Polarity: positive

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

Why it applies: true\_width\_m is 20.6

**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: qaqc\_disclosed is true

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

### SMS26-04

[Link to this fact](https://atlas-extractions.minestarters.com/news/gr-silver-reports-its-best-ever-drill-results-at-san-marcial-45-1-m-at-1-623-g-t--7ab565cc-8099-4cc9-a860-17448c446404#fact-drill-facts-5)

San Marcial · lead

#### Identity

- Hole ID: SMS26-04
- Project: San Marcial
- Commodity: lead
- Region: mexico
- Reported Region: mexico
- Ticker: GRSL

#### Geometry

- Grade: 0.3
- Grade Unit: %
- Intercept: 49.15 m
- True Width: 45.1 m
- From: 267.85 m
- To: 317 m
- Intercept Depth: 267.85 m

#### Classification

- Deposit Type: epithermal
- Sample Type: drill
- Group ID: SMS26-04:267.85-317
- Mining Method: unknown

#### QA/QC

- Laboratory: SGS de México, S.A. de C.V.
- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Review

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

#### Dates

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

Reasoning: Expanded from assay table. 0.3 % lead is weak against the default band \[10, 6, 3, 1\] %. Grade×width 14.7 %·m is weak \(grade alone is below; the better of the two is used\).

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

Evidence · table

> 0.3

Context: SMS26-04

#### Tags used in scoring

**True Width Disclosed**

Polarity: positive

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

Why it applies: true\_width\_m is 45.1

**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: qaqc\_disclosed is true

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

### SMS26-04

[Link to this fact](https://atlas-extractions.minestarters.com/news/gr-silver-reports-its-best-ever-drill-results-at-san-marcial-45-1-m-at-1-623-g-t--7ab565cc-8099-4cc9-a860-17448c446404#fact-drill-facts-6)

San Marcial · zinc

#### Identity

- Hole ID: SMS26-04
- Project: San Marcial
- Commodity: zinc
- Region: mexico
- Reported Region: mexico
- Ticker: GRSL

#### Geometry

- Grade: 1.1
- Grade Unit: %
- Intercept: 49.15 m
- True Width: 45.1 m
- From: 267.85 m
- To: 317 m
- Intercept Depth: 267.85 m

#### Classification

- Deposit Type: epithermal
- Sample Type: drill
- Group ID: SMS26-04:267.85-317
- Mining Method: unknown

#### QA/QC

- Laboratory: SGS de México, S.A. de C.V.
- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Review

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

#### Dates

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

Reasoning: Expanded from assay table. 1.1 % zinc is moderate against the default band \[18, 10, 5, 2\] %. Grade×width 54.1 %·m is moderate \(grade alone is below; the better of the two is used\).

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

Evidence · table

> 1.1

Context: SMS26-04

#### Tags used in scoring

**True Width Disclosed**

Polarity: positive

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

Why it applies: true\_width\_m is 45.1

**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: qaqc\_disclosed is true

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

### SMS26-04

[Link to this fact](https://atlas-extractions.minestarters.com/news/gr-silver-reports-its-best-ever-drill-results-at-san-marcial-45-1-m-at-1-623-g-t--7ab565cc-8099-4cc9-a860-17448c446404#fact-drill-facts-7)

San Marcial · gold

#### Identity

- Hole ID: SMS26-04
- Project: San Marcial
- Commodity: gold
- Region: mexico
- Reported Region: mexico
- Ticker: GRSL

#### Geometry

- Grade: 0.05
- Grade Unit: g/t
- Intercept: 20.55 m
- True Width: 18.85 m
- From: 278 m
- To: 298.55 m
- Intercept Depth: 278 m

#### Classification

- Deposit Type: epithermal
- Sample Type: drill
- Group ID: SMS26-04:278-298.55
- Mining Method: unknown

#### QA/QC

- Laboratory: SGS de México, S.A. de C.V.
- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Review

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

#### Dates

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

Reasoning: Expanded from assay table. 0.05 g/t gold is below against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 1.0 g/t·m is below.

- Negative factor: 0.05 g/t gold is below the weak threshold \(0.3 g/t\) on the default band.

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

Evidence · table

> 0.05

Context: SMS26-04

#### Tags used in scoring

**True Width Disclosed**

Polarity: positive

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

Why it applies: true\_width\_m is 18.85

**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: qaqc\_disclosed is true

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

### SMS26-04

[Link to this fact](https://atlas-extractions.minestarters.com/news/gr-silver-reports-its-best-ever-drill-results-at-san-marcial-45-1-m-at-1-623-g-t--7ab565cc-8099-4cc9-a860-17448c446404#fact-drill-facts-8)

San Marcial · lead

#### Identity

- Hole ID: SMS26-04
- Project: San Marcial
- Commodity: lead
- Region: mexico
- Reported Region: mexico
- Ticker: GRSL

#### Geometry

- Grade: 0.7
- Grade Unit: %
- Intercept: 20.55 m
- True Width: 18.85 m
- From: 278 m
- To: 298.55 m
- Intercept Depth: 278 m

#### Classification

- Deposit Type: epithermal
- Sample Type: drill
- Group ID: SMS26-04:278-298.55
- Mining Method: unknown

#### QA/QC

- Laboratory: SGS de México, S.A. de C.V.
- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Review

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

#### Dates

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

Reasoning: Expanded from assay table. 0.7 % lead is weak against the default band \[10, 6, 3, 1\] %. Grade×width 14.4 %·m is weak \(grade alone is below; the better of the two is used\).

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

Evidence · table

> 0.7

Context: SMS26-04

#### Tags used in scoring

**True Width Disclosed**

Polarity: positive

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

Why it applies: true\_width\_m is 18.85

**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: qaqc\_disclosed is true

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

### SMS26-04

[Link to this fact](https://atlas-extractions.minestarters.com/news/gr-silver-reports-its-best-ever-drill-results-at-san-marcial-45-1-m-at-1-623-g-t--7ab565cc-8099-4cc9-a860-17448c446404#fact-drill-facts-9)

San Marcial · zinc

#### Identity

- Hole ID: SMS26-04
- Project: San Marcial
- Commodity: zinc
- Region: mexico
- Reported Region: mexico
- Ticker: GRSL

#### Geometry

- Grade: 2.5
- Grade Unit: %
- Intercept: 20.55 m
- True Width: 18.85 m
- From: 278 m
- To: 298.55 m
- Intercept Depth: 278 m

#### Classification

- Deposit Type: epithermal
- Sample Type: drill
- Group ID: SMS26-04:278-298.55
- Mining Method: unknown

#### QA/QC

- Laboratory: SGS de México, S.A. de C.V.
- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Review

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

#### Dates

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

Reasoning: Expanded from assay table. 2.5 % zinc is moderate against the default band \[18, 10, 5, 2\] %. Grade×width 51.4 %·m is moderate \(grade alone is weak; the better of the two is used\).

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

Evidence · table

> 2.5

Context: SMS26-04

#### Tags used in scoring

**True Width Disclosed**

Polarity: positive

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

Why it applies: true\_width\_m is 18.85

**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: qaqc\_disclosed is true

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

### SMS26-04

[Link to this fact](https://atlas-extractions.minestarters.com/news/gr-silver-reports-its-best-ever-drill-results-at-san-marcial-45-1-m-at-1-623-g-t--7ab565cc-8099-4cc9-a860-17448c446404#fact-drill-facts-10)

San Marcial · gold

#### Identity

- Hole ID: SMS26-04
- Project: San Marcial
- Commodity: gold
- Region: mexico
- Reported Region: mexico
- Ticker: GRSL

#### Geometry

- Grade: 0.1
- Grade Unit: g/t
- Intercept: 9 m
- True Width: 8.25 m
- From: 284.05 m
- To: 293.05 m
- Intercept Depth: 284.05 m

#### Classification

- Deposit Type: epithermal
- Sample Type: drill
- Group ID: SMS26-04:284.05-293.05
- Mining Method: unknown

#### QA/QC

- Laboratory: SGS de México, S.A. de C.V.
- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Review

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

#### Dates

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

Reasoning: Expanded from assay table. 0.1 g/t gold is below against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 0.9 g/t·m is below.

- Negative factor: 0.1 g/t gold is below the weak threshold \(0.3 g/t\) on the default band.

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

Evidence · table

> 0.10

Context: SMS26-04

#### Tags used in scoring

**True Width Disclosed**

Polarity: positive

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

Why it applies: true\_width\_m is 8.25

**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: qaqc\_disclosed is true

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

### SMS26-04

[Link to this fact](https://atlas-extractions.minestarters.com/news/gr-silver-reports-its-best-ever-drill-results-at-san-marcial-45-1-m-at-1-623-g-t--7ab565cc-8099-4cc9-a860-17448c446404#fact-drill-facts-11)

San Marcial · lead

#### Identity

- Hole ID: SMS26-04
- Project: San Marcial
- Commodity: lead
- Region: mexico
- Reported Region: mexico
- Ticker: GRSL

#### Geometry

- Grade: 1.6
- Grade Unit: %
- Intercept: 9 m
- True Width: 8.25 m
- From: 284.05 m
- To: 293.05 m
- Intercept Depth: 284.05 m

#### Classification

- Deposit Type: epithermal
- Sample Type: drill
- Group ID: SMS26-04:284.05-293.05
- Mining Method: unknown

#### QA/QC

- Laboratory: SGS de México, S.A. de C.V.
- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Review

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

#### Dates

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

Reasoning: Expanded from assay table. 1.6 % lead is weak against the default band \[10, 6, 3, 1\] %. Grade×width 14.4 %·m is weak.

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

Evidence · table

> 1.6

Context: SMS26-04

#### Tags used in scoring

**True Width Disclosed**

Polarity: positive

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

Why it applies: true\_width\_m is 8.25

**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: qaqc\_disclosed is true

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

### SMS26-04

[Link to this fact](https://atlas-extractions.minestarters.com/news/gr-silver-reports-its-best-ever-drill-results-at-san-marcial-45-1-m-at-1-623-g-t--7ab565cc-8099-4cc9-a860-17448c446404#fact-drill-facts-12)

San Marcial · zinc

#### Identity

- Hole ID: SMS26-04
- Project: San Marcial
- Commodity: zinc
- Region: mexico
- Reported Region: mexico
- Ticker: GRSL

#### Geometry

- Grade: 5.5
- Grade Unit: %
- Intercept: 9 m
- True Width: 8.25 m
- From: 284.05 m
- To: 293.05 m
- Intercept Depth: 284.05 m

#### Classification

- Deposit Type: epithermal
- Sample Type: drill
- Group ID: SMS26-04:284.05-293.05
- Mining Method: unknown

#### QA/QC

- Laboratory: SGS de México, S.A. de C.V.
- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Review

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

#### Dates

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

Reasoning: Expanded from assay table. 5.5 % zinc is moderate against the default band \[18, 10, 5, 2\] %. Grade×width 49.5 %·m is moderate.

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

Evidence · table

> 5.5

Context: SMS26-04

#### Tags used in scoring

**True Width Disclosed**

Polarity: positive

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

Why it applies: true\_width\_m is 8.25

**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: qaqc\_disclosed is true

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

### SMS26-04

[Link to this fact](https://atlas-extractions.minestarters.com/news/gr-silver-reports-its-best-ever-drill-results-at-san-marcial-45-1-m-at-1-623-g-t--7ab565cc-8099-4cc9-a860-17448c446404#fact-drill-facts-13)

San Marcial · gold

#### Identity

- Hole ID: SMS26-04
- Project: San Marcial
- Commodity: gold
- Region: mexico
- Reported Region: mexico
- Ticker: GRSL

#### Geometry

- Grade: 0.02
- Grade Unit: g/t
- Intercept: 21.35 m
- True Width: 20.6 m
- From: 328.6 m
- To: 349.95 m
- Intercept Depth: 328.6 m

#### Classification

- Deposit Type: epithermal
- Sample Type: drill
- Group ID: SMS26-04:328.6-349.95
- Mining Method: unknown

#### QA/QC

- Laboratory: SGS de México, S.A. de C.V.
- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Review

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

#### Dates

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

Reasoning: Expanded from assay table. 0.02 g/t gold is below against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 0.4 g/t·m is below.

- Negative factor: 0.02 g/t gold is below the weak threshold \(0.3 g/t\) on the default band.

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

Evidence · table

> 0.02

Context: SMS26-04

#### Tags used in scoring

**True Width Disclosed**

Polarity: positive

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

Why it applies: true\_width\_m is 20.6

**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: qaqc\_disclosed is true

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

### SMS26-04

[Link to this fact](https://atlas-extractions.minestarters.com/news/gr-silver-reports-its-best-ever-drill-results-at-san-marcial-45-1-m-at-1-623-g-t--7ab565cc-8099-4cc9-a860-17448c446404#fact-drill-facts-14)

San Marcial · lead

#### Identity

- Hole ID: SMS26-04
- Project: San Marcial
- Commodity: lead
- Region: mexico
- Reported Region: mexico
- Ticker: GRSL

#### Geometry

- Grade: 0.1
- Grade Unit: %
- Intercept: 21.35 m
- True Width: 20.6 m
- From: 328.6 m
- To: 349.95 m
- Intercept Depth: 328.6 m

#### Classification

- Deposit Type: epithermal
- Sample Type: drill
- Group ID: SMS26-04:328.6-349.95
- Mining Method: unknown

#### QA/QC

- Laboratory: SGS de México, S.A. de C.V.
- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Review

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

#### Dates

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

Reasoning: Expanded from assay table. 0.1 % lead is below against the default band \[10, 6, 3, 1\] %. Grade×width 2.1 %·m is below.

- Negative factor: 0.1 % lead is below the weak threshold \(1 %\) on the default band.

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

Evidence · table

> 0.1

Context: SMS26-04

#### Tags used in scoring

**True Width Disclosed**

Polarity: positive

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

Why it applies: true\_width\_m is 20.6

**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: qaqc\_disclosed is true

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

### SMS26-04

[Link to this fact](https://atlas-extractions.minestarters.com/news/gr-silver-reports-its-best-ever-drill-results-at-san-marcial-45-1-m-at-1-623-g-t--7ab565cc-8099-4cc9-a860-17448c446404#fact-drill-facts-15)

San Marcial · zinc

#### Identity

- Hole ID: SMS26-04
- Project: San Marcial
- Commodity: zinc
- Region: mexico
- Reported Region: mexico
- Ticker: GRSL

#### Geometry

- Grade: 0.3
- Grade Unit: %
- Intercept: 21.35 m
- True Width: 20.6 m
- From: 328.6 m
- To: 349.95 m
- Intercept Depth: 328.6 m

#### Classification

- Deposit Type: epithermal
- Sample Type: drill
- Group ID: SMS26-04:328.6-349.95
- Mining Method: unknown

#### QA/QC

- Laboratory: SGS de México, S.A. de C.V.
- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Review

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

#### Dates

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

Reasoning: Expanded from assay table. 0.3 % zinc is below against the default band \[18, 10, 5, 2\] %. Grade×width 6.4 %·m is below.

- Negative factor: 0.3 % zinc is below the weak threshold \(2 %\) on the default band.

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

Evidence · table

> 0.3

Context: SMS26-04

#### Tags used in scoring

**True Width Disclosed**

Polarity: positive

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

Why it applies: true\_width\_m is 20.6

**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: qaqc\_disclosed is true

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

### SMS26-04

[Link to this fact](https://atlas-extractions.minestarters.com/news/gr-silver-reports-its-best-ever-drill-results-at-san-marcial-45-1-m-at-1-623-g-t--7ab565cc-8099-4cc9-a860-17448c446404#fact-drill-facts-16)

San Marcial · silver

#### Identity

- Hole ID: SMS26-04
- Project: San Marcial
- Commodity: silver
- Region: mexico
- Reported Region: mexico
- Ticker: GRSL

#### Geometry

- Grade: 51
- Grade Unit: g/t
- Intercept: 7.1 m
- True Width: 6.85 m
- From: 342.85 m
- To: 349.95 m
- Intercept Depth: 342.85 m

#### Classification

- Deposit Type: epithermal
- Sample Type: drill
- Group ID: SMS26-04:342.85-349.95
- Mining Method: unknown

#### QA/QC

- Laboratory: SGS de México, S.A. de C.V.
- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Review

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

#### Dates

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

Reasoning: Expanded from assay table. 51 g/t silver is weak against the default band \[500, 200, 100, 30\] g/t. Grade×width 362.1 g/t·m is weak.

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

Evidence · table

> 51

Context: SMS26-04

#### Tags used in scoring

**True Width Disclosed**

Polarity: positive

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

Why it applies: true\_width\_m is 6.85

**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: qaqc\_disclosed is true

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

### SMS26-04

[Link to this fact](https://atlas-extractions.minestarters.com/news/gr-silver-reports-its-best-ever-drill-results-at-san-marcial-45-1-m-at-1-623-g-t--7ab565cc-8099-4cc9-a860-17448c446404#fact-drill-facts-17)

San Marcial · gold

#### Identity

- Hole ID: SMS26-04
- Project: San Marcial
- Commodity: gold
- Region: mexico
- Reported Region: mexico
- Ticker: GRSL

#### Geometry

- Grade: 0.15
- Grade Unit: g/t
- Intercept: 7.1 m
- True Width: 6.85 m
- From: 342.85 m
- To: 349.95 m
- Intercept Depth: 342.85 m

#### Classification

- Deposit Type: epithermal
- Sample Type: drill
- Group ID: SMS26-04:342.85-349.95
- Mining Method: unknown

#### QA/QC

- Laboratory: SGS de México, S.A. de C.V.
- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Review

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

#### Dates

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

Reasoning: Expanded from assay table. 0.15 g/t gold is below against the default band \[5, 2, 1, 0.3\] g/t. Grade×width 1.1 g/t·m is below.

- Negative factor: 0.15 g/t gold is below the weak threshold \(0.3 g/t\) on the default band.

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

Evidence · table

> 0.15

Context: SMS26-04

#### Tags used in scoring

**True Width Disclosed**

Polarity: positive

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

Why it applies: true\_width\_m is 6.85

**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: qaqc\_disclosed is true

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

### SMS26-04

[Link to this fact](https://atlas-extractions.minestarters.com/news/gr-silver-reports-its-best-ever-drill-results-at-san-marcial-45-1-m-at-1-623-g-t--7ab565cc-8099-4cc9-a860-17448c446404#fact-drill-facts-18)

San Marcial · lead

#### Identity

- Hole ID: SMS26-04
- Project: San Marcial
- Commodity: lead
- Region: mexico
- Reported Region: mexico
- Ticker: GRSL

#### Geometry

- Grade: 0.8
- Grade Unit: %
- Intercept: 7.1 m
- True Width: 6.85 m
- From: 342.85 m
- To: 349.95 m
- Intercept Depth: 342.85 m

#### Classification

- Deposit Type: epithermal
- Sample Type: drill
- Group ID: SMS26-04:342.85-349.95
- Mining Method: unknown

#### QA/QC

- Laboratory: SGS de México, S.A. de C.V.
- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Review

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

#### Dates

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

Reasoning: Expanded from assay table. 0.8 % lead is below against the default band \[10, 6, 3, 1\] %. Grade×width 5.7 %·m is below.

- Negative factor: 0.8 % lead is below the weak threshold \(1 %\) on the default band.

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

Evidence · table

> 0.8

Context: SMS26-04

#### Tags used in scoring

**True Width Disclosed**

Polarity: positive

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

Why it applies: true\_width\_m is 6.85

**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: qaqc\_disclosed is true

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

### SMS26-04

[Link to this fact](https://atlas-extractions.minestarters.com/news/gr-silver-reports-its-best-ever-drill-results-at-san-marcial-45-1-m-at-1-623-g-t--7ab565cc-8099-4cc9-a860-17448c446404#fact-drill-facts-19)

San Marcial · zinc

#### Identity

- Hole ID: SMS26-04
- Project: San Marcial
- Commodity: zinc
- Region: mexico
- Reported Region: mexico
- Ticker: GRSL

#### Geometry

- Grade: 0.5
- Grade Unit: %
- Intercept: 7.1 m
- True Width: 6.85 m
- From: 342.85 m
- To: 349.95 m
- Intercept Depth: 342.85 m

#### Classification

- Deposit Type: epithermal
- Sample Type: drill
- Group ID: SMS26-04:342.85-349.95
- Mining Method: unknown

#### QA/QC

- Laboratory: SGS de México, S.A. de C.V.
- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Review

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

#### Dates

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

Reasoning: Expanded from assay table. 0.5 % zinc is below against the default band \[18, 10, 5, 2\] %. Grade×width 3.5 %·m is below.

- Negative factor: 0.5 % zinc is below the weak threshold \(2 %\) on the default band.

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

Evidence · table

> 0.5

Context: SMS26-04

#### Tags used in scoring

**True Width Disclosed**

Polarity: positive

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

Why it applies: true\_width\_m is 6.85

**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: qaqc\_disclosed is true

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

## How Atlas produces this analysis

Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.