# Oroco Increases South Zone Certainty at Santo Tom&\#xE1;s

Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854

Original source: https://money.tmx.com/en/quote/OCO/news/7821281160549232/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s

Publisher: tmx

Original announcement: 2026-06-18T11:00:00.000Z

Analysis by Minestarters Atlas

Atlas analysis published: Unknown date

Atlas analysis updated: Unknown date

- Company: Oroco Resource Corp.

- Ticker: OCO

- Exchange: TSX

- Region: Sinaloa, Mexico

- Primary commodity: Copper

- Secondary commodities: Molybdenum, Gold, Silver

- Document categories: Drill results, Resource update

- Extracted: 2026-09-16 14:59:35 UTC

Narrative sentiment: 0.60 · Bullish

## Minestarters Atlas summary

Oroco reports Phase 2 drill results from the South Zone of the Santo Tomás copper project, which are consistent with the 2024 PEA block model. The drilling, including infill and step-out holes, confirms copper-molybdenum mineralization and provides visual evidence of extension beyond the current inferred resource.

Reasoning: Phase 2 infill drilling confirms continuity and consistency with the existing PEA block model, with one hole \(S031\) providing visual evidence of extension beyond the current inferred resource.

- Positive factor: Results consistent with PEA block model

- Positive factor: Infill drilling confirming resource certainty

- Positive factor: Visual mineralization extension beyond inferred resource \(S031\)

- Positive factor: Near-surface mineralization reducing strip ratio

- Negative factor: Assays pending for S031

- Negative factor: Soluble copper assays pending for S027

Facts used in scoring: 32

## Classification and evidence

**Infill Drilling**

Polarity: neutral

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

Why it applies: S025 and S029 are explicitly described as infill drilling for block model support and testing western limits.

Evidence · text

> Infill drilling for block model support.

**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 QA/QC protocols including standards, blanks, duplicates, and laboratory names.

Evidence · text

> QA/QC protocols that include the insertion of certified reference standards, blanks, and duplicates.

**Step-Out Extension**

Polarity: positive

Definition: Mineralization extended beyond the previously known limit.

Why it applies: Hole S031 intersected visual mineralization outside of the current PEA Block Model.

Evidence · text

> S031... intersected visual mineralization outside of the current PEA Block Model

## Extracted facts

Stored fact records: 32. Some facts used in scoring do not have a stored record.

## Drill Results (32)

### S025

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-0)

Santo Tomás · copper

#### Identity

- Hole ID: S025
- Project: Santo Tomás
- Commodity: copper
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 0.29
- Grade Unit: %
- Intercept: 84.94 m
- From: 37 m
- To: 121.94 m
- Intercept Depth: 37 m

#### Classification

- Sample Type: drill
- Group ID: S025:37-121.94
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.33
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Standard infill intercept consistent with existing model.

- Positive factor: Consistent with PEA block model

Evidence · table

> 0.29

Context: 84.94

#### Tags used in scoring

**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

### S025

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-1)

Santo Tomás · copper

#### Identity

- Hole ID: S025
- Project: Santo Tomás
- Commodity: copper
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 0.41
- Grade Unit: %
- Intercept: 90 m
- From: 131 m
- To: 221 m
- Intercept Depth: 131 m

#### Classification

- Sample Type: drill
- Group ID: S025:131-221
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.53
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Higher grade interval in deeper part of hole.

- Positive factor: Stronger mineralization than S024

Evidence · table

> 0.41

Context: 90

#### Tags used in scoring

**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

### S025

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-2)

Santo Tomás · molybdenum

#### Identity

- Hole ID: S025
- Project: Santo Tomás
- Commodity: molybdenum
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 0.005
- Grade Unit: %
- Intercept: 84.94 m
- From: 37 m
- To: 121.94 m
- Intercept Depth: 37 m

#### Classification

- Sample Type: drill
- Group ID: S025:37-121.94
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.33
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Trace molybdenum.

Evidence · table

> 0.005

Context: 84.94

#### Tags used in scoring

**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

### S026

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-3)

Santo Tomás · copper

#### Identity

- Hole ID: S026
- Project: Santo Tomás
- Commodity: copper
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 0.56
- Grade Unit: %
- Intercept: 48.6 m
- From: 42 m
- To: 90.6 m
- Intercept Depth: 42 m

#### Classification

- Sample Type: drill
- Group ID: S026:42-90.6
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.67
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Strong copper intercept.

- Positive factor: Higher grade material in shallower part

Evidence · table

> 0.56

Context: 48.6

#### Tags used in scoring

**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

### S026

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-4)

Santo Tomás · molybdenum

#### Identity

- Hole ID: S026
- Project: Santo Tomás
- Commodity: molybdenum
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 0.015
- Grade Unit: %
- Intercept: 48.6 m
- From: 42 m
- To: 90.6 m
- Intercept Depth: 42 m

#### Classification

- Sample Type: drill
- Group ID: S026:42-90.6
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.67
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Trace molybdenum.

Evidence · table

> 0.015

Context: 48.6

#### Tags used in scoring

**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

### S026

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-5)

Santo Tomás · copper

#### Identity

- Hole ID: S026
- Project: Santo Tomás
- Commodity: copper
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 0.2
- Grade Unit: %
- Intercept: 59 m
- From: 93 m
- To: 152 m
- Intercept Depth: 93 m

#### Classification

- Sample Type: drill
- Group ID: S026:93-152
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.33
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Lower grade mineralization at depth.

Evidence · table

> 0.2

Context: 59

#### Tags used in scoring

**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

### S028

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-6)

Santo Tomás · copper

#### Identity

- Hole ID: S028
- Project: Santo Tomás
- Commodity: copper
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 0.38
- Grade Unit: %
- Intercept: 44.52 m
- From: 44 m
- To: 88.52 m
- Intercept Depth: 44 m

#### Classification

- Sample Type: drill
- Group ID: S028:44-88.52
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.46
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Tested western limits of South Zone.

- Positive factor: Suggests deeper westward mineralization

Evidence · table

> 0.38

Context: 44.52

#### Tags used in scoring

**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

### S029

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-7)

Santo Tomás · copper

#### Identity

- Hole ID: S029
- Project: Santo Tomás
- Commodity: copper
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 0.35
- Grade Unit: %
- Intercept: 58.76 m
- From: 27 m
- To: 85.76 m
- Intercept Depth: 27 m

#### Classification

- Sample Type: drill
- Group ID: S029:27-85.76
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

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

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Infill hole confirming shallow mineralization.

- Positive factor: Very near surface mineralization

- Positive factor: Reduces strip in this area

Evidence · table

> 0.35

Context: 58.76

#### Tags used in scoring

**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

### S025

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-8)

Santo Tomás · gold

#### Identity

- Hole ID: S025
- Project: Santo Tomás
- Commodity: gold
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 0.014
- Grade Unit: ppm
- Intercept: 84.94 m
- From: 37 m
- To: 121.94 m
- Intercept Depth: 37 m

#### Classification

- Sample Type: drill
- Group ID: S025:37-121.94
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.33
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Expanded from assay table: 0.014 ppm gold, reported in a unit the rubric does not cover \(g/t\).

- Negative factor: Grade unit ppm does not match the gold rubric unit g/t; not scored.

Evidence · table

> 0.014

Context: S025

#### Tags used in scoring

**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

### S025

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-9)

Santo Tomás · silver

#### Identity

- Hole ID: S025
- Project: Santo Tomás
- Commodity: silver
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 1.65
- Grade Unit: ppm
- Intercept: 84.94 m
- From: 37 m
- To: 121.94 m
- Intercept Depth: 37 m

#### Classification

- Sample Type: drill
- Group ID: S025:37-121.94
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.33
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Expanded from assay table: 1.65 ppm silver, reported in a unit the rubric does not cover \(g/t\).

- Negative factor: Grade unit ppm does not match the silver rubric unit g/t; not scored.

Evidence · table

> 1.65

Context: S025

#### Tags used in scoring

**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

### S025

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-10)

Santo Tomás · molybdenum

#### Identity

- Hole ID: S025
- Project: Santo Tomás
- Commodity: molybdenum
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 0.022
- Grade Unit: %
- Intercept: 90 m
- From: 131 m
- To: 221 m
- Intercept Depth: 131 m

#### Classification

- Sample Type: drill
- Group ID: S025:131-221
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.53
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Expanded from assay table: 0.022 % molybdenum. No grade band defined for this commodity, so the score is a placeholder.

- Negative factor: No grade rubric for molybdenum; intercept not scored.

Evidence · table

> 0.022

Context: S025

#### Tags used in scoring

**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

### S025

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-11)

Santo Tomás · gold

#### Identity

- Hole ID: S025
- Project: Santo Tomás
- Commodity: gold
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 0.01
- Grade Unit: ppm
- Intercept: 90 m
- From: 131 m
- To: 221 m
- Intercept Depth: 131 m

#### Classification

- Sample Type: drill
- Group ID: S025:131-221
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.53
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Expanded from assay table: 0.01 ppm gold, reported in a unit the rubric does not cover \(g/t\).

- Negative factor: Grade unit ppm does not match the gold rubric unit g/t; not scored.

Evidence · table

> 0.01

Context: S025

#### Tags used in scoring

**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

### S025

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-12)

Santo Tomás · silver

#### Identity

- Hole ID: S025
- Project: Santo Tomás
- Commodity: silver
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 2.38
- Grade Unit: ppm
- Intercept: 90 m
- From: 131 m
- To: 221 m
- Intercept Depth: 131 m

#### Classification

- Sample Type: drill
- Group ID: S025:131-221
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.53
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Expanded from assay table: 2.38 ppm silver, reported in a unit the rubric does not cover \(g/t\).

- Negative factor: Grade unit ppm does not match the silver rubric unit g/t; not scored.

Evidence · table

> 2.38

Context: S025

#### Tags used in scoring

**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

### S026

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-13)

Santo Tomás · gold

#### Identity

- Hole ID: S026
- Project: Santo Tomás
- Commodity: gold
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 0.017
- Grade Unit: ppm
- Intercept: 48.6 m
- From: 42 m
- To: 90.6 m
- Intercept Depth: 42 m

#### Classification

- Sample Type: drill
- Group ID: S026:42-90.6
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.67
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Expanded from assay table: 0.017 ppm gold, reported in a unit the rubric does not cover \(g/t\).

- Negative factor: Grade unit ppm does not match the gold rubric unit g/t; not scored.

Evidence · table

> 0.017

Context: S026

#### Tags used in scoring

**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

### S026

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-14)

Santo Tomás · silver

#### Identity

- Hole ID: S026
- Project: Santo Tomás
- Commodity: silver
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 3.12
- Grade Unit: ppm
- Intercept: 48.6 m
- From: 42 m
- To: 90.6 m
- Intercept Depth: 42 m

#### Classification

- Sample Type: drill
- Group ID: S026:42-90.6
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.67
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Expanded from assay table: 3.12 ppm silver, reported in a unit the rubric does not cover \(g/t\).

- Negative factor: Grade unit ppm does not match the silver rubric unit g/t; not scored.

Evidence · table

> 3.12

Context: S026

#### Tags used in scoring

**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

### S026

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-15)

Santo Tomás · molybdenum

#### Identity

- Hole ID: S026
- Project: Santo Tomás
- Commodity: molybdenum
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 0.026
- Grade Unit: %
- Intercept: 59 m
- From: 93 m
- To: 152 m
- Intercept Depth: 93 m

#### Classification

- Sample Type: drill
- Group ID: S026:93-152
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.33
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Expanded from assay table: 0.026 % molybdenum. No grade band defined for this commodity, so the score is a placeholder.

- Negative factor: No grade rubric for molybdenum; intercept not scored.

Evidence · table

> 0.026

Context: S026

#### Tags used in scoring

**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

### S026

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-16)

Santo Tomás · gold

#### Identity

- Hole ID: S026
- Project: Santo Tomás
- Commodity: gold
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 0.008
- Grade Unit: ppm
- Intercept: 59 m
- From: 93 m
- To: 152 m
- Intercept Depth: 93 m

#### Classification

- Sample Type: drill
- Group ID: S026:93-152
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.33
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Expanded from assay table: 0.008 ppm gold, reported in a unit the rubric does not cover \(g/t\).

- Negative factor: Grade unit ppm does not match the gold rubric unit g/t; not scored.

Evidence · table

> 0.008

Context: S026

#### Tags used in scoring

**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

### S026

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-17)

Santo Tomás · silver

#### Identity

- Hole ID: S026
- Project: Santo Tomás
- Commodity: silver
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 1.44
- Grade Unit: ppm
- Intercept: 59 m
- From: 93 m
- To: 152 m
- Intercept Depth: 93 m

#### Classification

- Sample Type: drill
- Group ID: S026:93-152
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.33
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Expanded from assay table: 1.44 ppm silver, reported in a unit the rubric does not cover \(g/t\).

- Negative factor: Grade unit ppm does not match the silver rubric unit g/t; not scored.

Evidence · table

> 1.44

Context: S026

#### Tags used in scoring

**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

### S026

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-18)

Santo Tomás · copper

#### Identity

- Hole ID: S026
- Project: Santo Tomás
- Commodity: copper
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 0.16
- Grade Unit: %
- Intercept: 23.45 m
- From: 280 m
- To: 303.45 m
- Intercept Depth: 280 m

#### Classification

- Sample Type: drill
- Group ID: S026:280-303.45
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.24
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.16 % copper is below against the default band \[2.5, 1, 0.5, 0.25\] %. Grade×width 3.8 %·m is below.

- Negative factor: 0.16 % copper is below the weak threshold \(0.25 %\) on the default band.

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

Evidence · table

> 0.16

Context: S026

#### Tags used in scoring

**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

### S026

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-19)

Santo Tomás · molybdenum

#### Identity

- Hole ID: S026
- Project: Santo Tomás
- Commodity: molybdenum
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 0.013
- Grade Unit: %
- Intercept: 23.45 m
- From: 280 m
- To: 303.45 m
- Intercept Depth: 280 m

#### Classification

- Sample Type: drill
- Group ID: S026:280-303.45
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.24
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Expanded from assay table: 0.013 % molybdenum. No grade band defined for this commodity, so the score is a placeholder.

- Negative factor: No grade rubric for molybdenum; intercept not scored.

Evidence · table

> 0.013

Context: S026

#### Tags used in scoring

**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

### S026

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-20)

Santo Tomás · gold

#### Identity

- Hole ID: S026
- Project: Santo Tomás
- Commodity: gold
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 0.011
- Grade Unit: ppm
- Intercept: 23.45 m
- From: 280 m
- To: 303.45 m
- Intercept Depth: 280 m

#### Classification

- Sample Type: drill
- Group ID: S026:280-303.45
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.24
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Expanded from assay table: 0.011 ppm gold, reported in a unit the rubric does not cover \(g/t\).

- Negative factor: Grade unit ppm does not match the gold rubric unit g/t; not scored.

Evidence · table

> 0.011

Context: S026

#### Tags used in scoring

**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

### S026

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-21)

Santo Tomás · silver

#### Identity

- Hole ID: S026
- Project: Santo Tomás
- Commodity: silver
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 1.56
- Grade Unit: ppm
- Intercept: 23.45 m
- From: 280 m
- To: 303.45 m
- Intercept Depth: 280 m

#### Classification

- Sample Type: drill
- Group ID: S026:280-303.45
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.24
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Expanded from assay table: 1.56 ppm silver, reported in a unit the rubric does not cover \(g/t\).

- Negative factor: Grade unit ppm does not match the silver rubric unit g/t; not scored.

Evidence · table

> 1.56

Context: S026

#### Tags used in scoring

**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

### S028

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-22)

Santo Tomás · molybdenum

#### Identity

- Hole ID: S028
- Project: Santo Tomás
- Commodity: molybdenum
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 0.013
- Grade Unit: %
- Intercept: 44.52 m
- From: 44 m
- To: 88.52 m
- Intercept Depth: 44 m

#### Classification

- Sample Type: drill
- Group ID: S028:44-88.52
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.46
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Expanded from assay table: 0.013 % molybdenum. No grade band defined for this commodity, so the score is a placeholder.

- Negative factor: No grade rubric for molybdenum; intercept not scored.

Evidence · table

> 0.013

Context: S028

#### Tags used in scoring

**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

### S028

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-23)

Santo Tomás · gold

#### Identity

- Hole ID: S028
- Project: Santo Tomás
- Commodity: gold
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 0.01
- Grade Unit: ppm
- Intercept: 44.52 m
- From: 44 m
- To: 88.52 m
- Intercept Depth: 44 m

#### Classification

- Sample Type: drill
- Group ID: S028:44-88.52
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.46
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Expanded from assay table: 0.01 ppm gold, reported in a unit the rubric does not cover \(g/t\).

- Negative factor: Grade unit ppm does not match the gold rubric unit g/t; not scored.

Evidence · table

> 0.01

Context: S028

#### Tags used in scoring

**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

### S028

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-24)

Santo Tomás · silver

#### Identity

- Hole ID: S028
- Project: Santo Tomás
- Commodity: silver
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 1.83
- Grade Unit: ppm
- Intercept: 44.52 m
- From: 44 m
- To: 88.52 m
- Intercept Depth: 44 m

#### Classification

- Sample Type: drill
- Group ID: S028:44-88.52
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.46
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Expanded from assay table: 1.83 ppm silver, reported in a unit the rubric does not cover \(g/t\).

- Negative factor: Grade unit ppm does not match the silver rubric unit g/t; not scored.

Evidence · table

> 1.83

Context: S028

#### Tags used in scoring

**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

### S029

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-25)

Santo Tomás · molybdenum

#### Identity

- Hole ID: S029
- Project: Santo Tomás
- Commodity: molybdenum
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 0.009
- Grade Unit: %
- Intercept: 58.76 m
- From: 27 m
- To: 85.76 m
- Intercept Depth: 27 m

#### Classification

- Sample Type: drill
- Group ID: S029:27-85.76
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

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

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Expanded from assay table: 0.009 % molybdenum. No grade band defined for this commodity, so the score is a placeholder.

- Negative factor: No grade rubric for molybdenum; intercept not scored.

Evidence · table

> 0.009

Context: S029

#### Tags used in scoring

**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

### S029

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-26)

Santo Tomás · gold

#### Identity

- Hole ID: S029
- Project: Santo Tomás
- Commodity: gold
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 0.018
- Grade Unit: ppm
- Intercept: 58.76 m
- From: 27 m
- To: 85.76 m
- Intercept Depth: 27 m

#### Classification

- Sample Type: drill
- Group ID: S029:27-85.76
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

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

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Expanded from assay table: 0.018 ppm gold, reported in a unit the rubric does not cover \(g/t\).

- Negative factor: Grade unit ppm does not match the gold rubric unit g/t; not scored.

Evidence · table

> 0.018

Context: S029

#### Tags used in scoring

**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

### S029

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-27)

Santo Tomás · silver

#### Identity

- Hole ID: S029
- Project: Santo Tomás
- Commodity: silver
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 2.22
- Grade Unit: ppm
- Intercept: 58.76 m
- From: 27 m
- To: 85.76 m
- Intercept Depth: 27 m

#### Classification

- Sample Type: drill
- Group ID: S029:27-85.76
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

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

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Expanded from assay table: 2.22 ppm silver, reported in a unit the rubric does not cover \(g/t\).

- Negative factor: Grade unit ppm does not match the silver rubric unit g/t; not scored.

Evidence · table

> 2.22

Context: S029

#### Tags used in scoring

**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

### S029

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-28)

Santo Tomás · copper

#### Identity

- Hole ID: S029
- Project: Santo Tomás
- Commodity: copper
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 0.29
- Grade Unit: %
- Intercept: 16.01 m
- From: 87.32 m
- To: 103.33 m
- Intercept Depth: 87.32 m

#### Classification

- Sample Type: drill
- Group ID: S029:87.32-103.33
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.35
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Expanded from assay table. 0.29 % copper is weak against the default band \[2.5, 1, 0.5, 0.25\] %. Grade×width 4.6 %·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

> 0.29

Context: S029

#### Tags used in scoring

**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

### S029

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-29)

Santo Tomás · molybdenum

#### Identity

- Hole ID: S029
- Project: Santo Tomás
- Commodity: molybdenum
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 0.007
- Grade Unit: %
- Intercept: 16.01 m
- From: 87.32 m
- To: 103.33 m
- Intercept Depth: 87.32 m

#### Classification

- Sample Type: drill
- Group ID: S029:87.32-103.33
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.35
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Expanded from assay table: 0.007 % molybdenum. No grade band defined for this commodity, so the score is a placeholder.

- Negative factor: No grade rubric for molybdenum; intercept not scored.

Evidence · table

> 0.007

Context: S029

#### Tags used in scoring

**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

### S029

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-30)

Santo Tomás · gold

#### Identity

- Hole ID: S029
- Project: Santo Tomás
- Commodity: gold
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 0.007
- Grade Unit: ppm
- Intercept: 16.01 m
- From: 87.32 m
- To: 103.33 m
- Intercept Depth: 87.32 m

#### Classification

- Sample Type: drill
- Group ID: S029:87.32-103.33
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.35
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Expanded from assay table: 0.007 ppm gold, reported in a unit the rubric does not cover \(g/t\).

- Negative factor: Grade unit ppm does not match the gold rubric unit g/t; not scored.

Evidence · table

> 0.007

Context: S029

#### Tags used in scoring

**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

### S029

[Link to this fact](https://atlas-extractions.minestarters.com/news/oroco-increases-south-zone-certainty-at-santo-tom-xe1-s--6fd7b62f-6958-4ec4-8cd2-998d24e1e854#fact-drill-facts-31)

Santo Tomás · silver

#### Identity

- Hole ID: S029
- Project: Santo Tomás
- Commodity: silver
- Region: mexico
- Reported Region: mexico
- Ticker: OCO

#### Geometry

- Grade: 1.71
- Grade Unit: ppm
- Intercept: 16.01 m
- From: 87.32 m
- To: 103.33 m
- Intercept Depth: 87.32 m

#### Classification

- Sample Type: drill
- Group ID: S029:87.32-103.33
- Mining Method: open\_pit

#### Location

- Location: South Zone
- Loc. Source: document

#### QA/QC

- QA/QC Disclosed: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.35
- Metal Eq. Unit: % Cu-Eq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-06-18T00:00:00.000Z

Reasoning: Expanded from assay table: 1.71 ppm silver, reported in a unit the rubric does not cover \(g/t\).

- Negative factor: Grade unit ppm does not match the silver rubric unit g/t; not scored.

Evidence · table

> 1.71

Context: S029

#### Tags used in scoring

**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.