# STM: Excellent start to new resource growth drilling program

Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/stm-excellent-start-to-new-resource-growth-drilling-program--38be4ace-5bbb-4245-87ed-dcb716b1ae00

Original source: https://www.asx.com.au/asx/v2/statistics/displayAnnouncement.do?display=pdf&idsId=03082172

Publisher: asx

Original announcement: 2026-04-13T18:30:00.000Z

Analysis by Minestarters Atlas

Atlas analysis published: Unknown date

Atlas analysis updated: Unknown date

- Company: Sunstone Metals Ltd

- Ticker: STM

- Exchange: ASX

- Region: Ecuador

- Primary commodity: Gold

- Secondary commodities: Copper, Silver, Molybdenum

- Document categories: Drill results, Resource update

- Extracted: 2026-08-05 14:13:15 UTC

Narrative sentiment: 0.85 · Bullish

## Minestarters Atlas summary

Sunstone Metals has reported strong initial drill results from the first two holes of a new resource growth drilling program at its Bramaderos Gold-Copper Project in Ecuador. Hole CPDD001 intersected 200m at 0.45 g/t AuEq, including a higher-grade sub-interval of 50.6m at 0.62 g/t AuEq, while CPDD002 returned 162.2m at 0.32 g/t AuEq, including 58.0m at 0.42 g/t AuEq. These wide intersections confirm the continuity of porphyry mineralisation at depth and are aimed at expanding the existing 3.6 Moz AuEq Bramaderos Mineral Resource.

Reasoning: The initial drill results from the new program at Copete-Porotillo show wide, mineralised intersections with good gold-copper equivalent grades, confirming continuity at depth and supporting the goal of increasing the Bramaderos Mineral Resource. The results are described as 'very good grades by porphyry standards' by the company.

- Positive factor: Wide, high-grade intercepts for porphyry system

- Positive factor: Confirms continuity of mineralisation at depth

- Positive factor: New drilling program aimed at increasing existing resource

- Positive factor: Detailed QA/QC disclosure and QP sign-off

- Positive factor: Metal equivalent assumptions are transparently disclosed

- Negative factor: True width of mineralisation is not yet known

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

Facts used in scoring: 24

## Classification and evidence

**Step-Out Extension**

Polarity: positive

Definition: Mineralization extended beyond the previously known limit.

Why it applies: The drilling program is explicitly aimed at 'increasing the current 3.6 Moz AuEq2 Bramaderos Mineral Resource', indicating an expansion of known mineralization.

Evidence · text

> The program is aimed at increasing the current 3.6 Moz AuEq2 Bramaderos Mineral Resource

**QA/QC Disclosed**

Polarity: positive

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

Why it applies: The document includes a detailed JORC Table 1 with information on sampling techniques, laboratory procedures, and the use of standards, blanks, and duplicates.

Evidence · text

> Sunstone used an industry standard QAQC programme involving Certified Reference Materials “standards” and blank samples, which were introduced in the assay batches.

**Apparent Width Only**

Polarity: negative

Definition: Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.

Why it applies: The report explicitly states that 'True widths of mineralised lodes are not known at this stage' for the reported intercepts.

Evidence · text

> True widths of mineralised lodes are not known at this stage.

**Porphyry Deposit**

Definition: No canonical definition is currently available.

Why it applies: The project is described as the 'Copete-Porotillo porphyry complex' and the mineralisation as 'porphyry gold-copper mineralisation'.

Evidence · text

> Copete-Porotillo porphyry complex

## Extracted facts

Stored fact records: 24. Some facts used in scoring do not have a stored record.

## Drill Results (21)

### CPDD002

[Link to this fact](https://atlas-staging.minestarters.com/news/stm-excellent-start-to-new-resource-growth-drilling-program--38be4ace-5bbb-4245-87ed-dcb716b1ae00#fact-drill-facts-0)

Bramaderos · gold

#### Identity

- Hole ID: CPDD002
- Project: Bramaderos
- Commodity: gold
- Region: ecuador
- Reported Region: Ecuador
- Ticker: STM

#### Geometry

- Grade: 0.27
- Grade Unit: g/t
- Intercept: 58 m
- From: 57 m
- To: 115 m
- Hole Depth: 162.17 m

#### Classification

- Deposit Type: porphyry
- Program: resource
- Sample Type: drill
- Group ID: CPDD002:57-115
- Mining Method: open\_pit

#### Location

- Easting: 632062
- Northing: 9548118
- CRS: PSAD56 Zone 17S
- Elevation: 858 m
- Azimuth: 300 °
- Dip: -55 °
- Loc. Confidence: high

#### QA/QC

- Laboratory: MS Analytical
- QA/QC Disclosed: Yes
- Lab Certified: Yes
- QP Signed: Yes
- QA/QC Methods: standards, blanks, duplicates

#### Metal Equivalent

- Metal Eq. Grade: 0.42
- Metal Eq. Unit: g/t AuEq
- Assumptions Disclosed: Yes

#### Review

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

#### Dates

- Event date: 2026-04-13T00:00:00.000Z

Reasoning: This 58m sub-interval at 0.42 g/t AuEq represents a significant higher-grade zone within the broader intercept, further enhancing the prospectivity of the porphyry system.

- Positive factor: Higher-grade sub-interval within a wide intercept

- Positive factor: Strong grade for porphyry

- Positive factor: Confirms continuity at depth

- Positive factor: New drilling program aimed at resource growth

- Positive factor: Good QA/QC disclosure

- Positive factor: Metal equivalent assumptions disclosed

- Negative factor: True width not known

Evidence · table

> 0.42

Context: 58

### CPDD001

[Link to this fact](https://atlas-staging.minestarters.com/news/stm-excellent-start-to-new-resource-growth-drilling-program--38be4ace-5bbb-4245-87ed-dcb716b1ae00#fact-drill-facts-4)

Bramaderos · gold

#### Identity

- Hole ID: CPDD001
- Project: Bramaderos
- Commodity: gold
- Region: ecuador
- Reported Region: Ecuador
- Ticker: STM

#### Geometry

- Grade: 0.33
- Grade Unit: g/t
- Intercept: 200 m
- From: 0 m
- To: 200 m

#### Classification

- Deposit Type: porphyry
- Sample Type: drill
- Group ID: CPDD001:0-200
- Mining Method: open\_pit

#### Location

- CRS: PSAD56 Zone 17S

#### Review

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

#### Dates

- Event date: 2026-04-13T00:00:00.000Z

Reasoning: Expanded from assay table. 0.33 g/t gold is moderate against the porphyry deposit band \[1, 0.5, 0.3, 0.15\] g/t. Grade×width 66.0 g/t·m is moderate.

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

Evidence · table

> 0.33

Context: CPDD001

### CPDD001

[Link to this fact](https://atlas-staging.minestarters.com/news/stm-excellent-start-to-new-resource-growth-drilling-program--38be4ace-5bbb-4245-87ed-dcb716b1ae00#fact-drill-facts-5)

Bramaderos · copper

#### Identity

- Hole ID: CPDD001
- Project: Bramaderos
- Commodity: copper
- Region: ecuador
- Reported Region: Ecuador
- Ticker: STM

#### Geometry

- Grade: 0.07
- Grade Unit: %
- Intercept: 200 m
- From: 0 m
- To: 200 m

#### Classification

- Deposit Type: porphyry
- Sample Type: drill
- Group ID: CPDD001:0-200
- Mining Method: open\_pit

#### Location

- CRS: PSAD56 Zone 17S

#### Review

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

#### Dates

- Event date: 2026-04-13T00:00:00.000Z

Reasoning: Expanded from assay table. 0.07 % copper is below against the porphyry deposit band \[0.8, 0.4, 0.25, 0.15\] %. Grade×width 14.0 %·m is below.

- Negative factor: 0.07 % copper is below the weak threshold \(0.15 %\) on the porphyry deposit band.

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

Evidence · table

> 0.07

Context: CPDD001

### CPDD001

[Link to this fact](https://atlas-staging.minestarters.com/news/stm-excellent-start-to-new-resource-growth-drilling-program--38be4ace-5bbb-4245-87ed-dcb716b1ae00#fact-drill-facts-6)

Bramaderos · silver

#### Identity

- Hole ID: CPDD001
- Project: Bramaderos
- Commodity: silver
- Region: ecuador
- Reported Region: Ecuador
- Ticker: STM

#### Geometry

- Grade: 1.1
- Grade Unit: g/t
- Intercept: 200 m
- From: 0 m
- To: 200 m

#### Classification

- Deposit Type: porphyry
- Sample Type: drill
- Group ID: CPDD001:0-200
- Mining Method: open\_pit

#### Location

- CRS: PSAD56 Zone 17S

#### Review

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

#### Dates

- Event date: 2026-04-13T00:00:00.000Z

Reasoning: Expanded from assay table. 1.1 g/t silver is weak against the default band \[500, 200, 100, 30\] g/t. Grade×width 220.0 g/t·m is weak \(grade alone is below; the better of the two is used\).

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

Evidence · table

> 1.10

Context: CPDD001

### CPDD001

[Link to this fact](https://atlas-staging.minestarters.com/news/stm-excellent-start-to-new-resource-growth-drilling-program--38be4ace-5bbb-4245-87ed-dcb716b1ae00#fact-drill-facts-7)

Bramaderos · mo

#### Identity

- Hole ID: CPDD001
- Project: Bramaderos
- Commodity: mo
- Region: ecuador
- Reported Region: Ecuador
- Ticker: STM

#### Geometry

- Grade: 9.15
- Grade Unit: ppm
- Intercept: 200 m
- From: 0 m
- To: 200 m

#### Classification

- Deposit Type: porphyry
- Sample Type: drill
- Group ID: CPDD001:0-200
- Mining Method: open\_pit

#### Location

- CRS: PSAD56 Zone 17S

#### Review

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

#### Dates

- Event date: 2026-04-13T00:00:00.000Z

Reasoning: Expanded from assay table: 9.15 ppm mo. No grade band defined for this commodity, so the score is a placeholder.

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

Evidence · table

> 9.15

Context: CPDD001

### Includes

[Link to this fact](https://atlas-staging.minestarters.com/news/stm-excellent-start-to-new-resource-growth-drilling-program--38be4ace-5bbb-4245-87ed-dcb716b1ae00#fact-drill-facts-8)

Bramaderos · gold

#### Identity

- Hole ID: Includes
- Project: Bramaderos
- Commodity: gold
- Region: ecuador
- Reported Region: Ecuador
- Ticker: STM

#### Geometry

- Grade: 0.52
- Grade Unit: g/t
- Intercept: 50.55 m
- From: 0 m
- To: 50.55 m

#### Classification

- Deposit Type: porphyry
- Sample Type: drill
- Group ID: Includes:0-50.55
- Mining Method: open\_pit

#### Location

- CRS: PSAD56 Zone 17S

#### Review

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

#### Dates

- Event date: 2026-04-13T00:00:00.000Z

Reasoning: Expanded from assay table. 0.52 g/t gold is strong against the porphyry deposit band \[1, 0.5, 0.3, 0.15\] g/t. Grade×width 26.3 g/t·m is weak \(grade alone is strong; the better of the two is used\).

- Positive factor: 0.52 g/t gold is strong on the porphyry deposit band.

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

Evidence · table

> 0.52

Context: Includes

### Includes

[Link to this fact](https://atlas-staging.minestarters.com/news/stm-excellent-start-to-new-resource-growth-drilling-program--38be4ace-5bbb-4245-87ed-dcb716b1ae00#fact-drill-facts-9)

Bramaderos · copper

#### Identity

- Hole ID: Includes
- Project: Bramaderos
- Commodity: copper
- Region: ecuador
- Reported Region: Ecuador
- Ticker: STM

#### Geometry

- Grade: 0.05
- Grade Unit: %
- Intercept: 50.55 m
- From: 0 m
- To: 50.55 m

#### Classification

- Deposit Type: porphyry
- Sample Type: drill
- Group ID: Includes:0-50.55
- Mining Method: open\_pit

#### Location

- CRS: PSAD56 Zone 17S

#### Review

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

#### Dates

- Event date: 2026-04-13T00:00:00.000Z

Reasoning: Expanded from assay table. 0.05 % copper is below against the porphyry deposit band \[0.8, 0.4, 0.25, 0.15\] %. Grade×width 2.5 %·m is below.

- Negative factor: 0.05 % copper is below the weak threshold \(0.15 %\) on the porphyry deposit band.

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

Evidence · table

> 0.05

Context: Includes

### Includes

[Link to this fact](https://atlas-staging.minestarters.com/news/stm-excellent-start-to-new-resource-growth-drilling-program--38be4ace-5bbb-4245-87ed-dcb716b1ae00#fact-drill-facts-10)

Bramaderos · silver

#### Identity

- Hole ID: Includes
- Project: Bramaderos
- Commodity: silver
- Region: ecuador
- Reported Region: Ecuador
- Ticker: STM

#### Geometry

- Grade: 2.75
- Grade Unit: g/t
- Intercept: 50.55 m
- From: 0 m
- To: 50.55 m

#### Classification

- Deposit Type: porphyry
- Sample Type: drill
- Group ID: Includes:0-50.55
- Mining Method: open\_pit

#### Location

- CRS: PSAD56 Zone 17S

#### Review

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

#### Dates

- Event date: 2026-04-13T00:00:00.000Z

Reasoning: Expanded from assay table. 2.75 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 139.0 g/t·m is below.

- Negative factor: 2.75 g/t silver is below the weak threshold \(30 g/t\) on the default band.

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

Evidence · table

> 2.75

Context: Includes

### Includes

[Link to this fact](https://atlas-staging.minestarters.com/news/stm-excellent-start-to-new-resource-growth-drilling-program--38be4ace-5bbb-4245-87ed-dcb716b1ae00#fact-drill-facts-11)

Bramaderos · mo

#### Identity

- Hole ID: Includes
- Project: Bramaderos
- Commodity: mo
- Region: ecuador
- Reported Region: Ecuador
- Ticker: STM

#### Geometry

- Grade: 20.94
- Grade Unit: ppm
- Intercept: 50.55 m
- From: 0 m
- To: 50.55 m

#### Classification

- Deposit Type: porphyry
- Sample Type: drill
- Group ID: Includes:0-50.55
- Mining Method: open\_pit

#### Location

- CRS: PSAD56 Zone 17S

#### Review

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

#### Dates

- Event date: 2026-04-13T00:00:00.000Z

Reasoning: Expanded from assay table: 20.94 ppm mo. No grade band defined for this commodity, so the score is a placeholder.

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

Evidence · table

> 20.94

Context: Includes

### Includes

[Link to this fact](https://atlas-staging.minestarters.com/news/stm-excellent-start-to-new-resource-growth-drilling-program--38be4ace-5bbb-4245-87ed-dcb716b1ae00#fact-drill-facts-12)

Bramaderos · gold

#### Identity

- Hole ID: Includes
- Project: Bramaderos
- Commodity: gold
- Region: ecuador
- Reported Region: Ecuador
- Ticker: STM

#### Geometry

- Grade: 0.65
- Grade Unit: g/t
- Intercept: 26.9 m
- From: 0 m
- To: 26.9 m

#### Classification

- Deposit Type: porphyry
- Sample Type: drill
- Group ID: Includes:0-26.9
- Mining Method: open\_pit

#### Location

- CRS: PSAD56 Zone 17S

#### Review

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

#### Dates

- Event date: 2026-04-13T00:00:00.000Z

Reasoning: Expanded from assay table. 0.65 g/t gold is strong against the porphyry deposit band \[1, 0.5, 0.3, 0.15\] g/t. Grade×width 17.5 g/t·m is weak \(grade alone is strong; the better of the two is used\).

- Positive factor: 0.65 g/t gold is strong on the porphyry deposit band.

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

Evidence · table

> 0.65

Context: Includes

### Includes

[Link to this fact](https://atlas-staging.minestarters.com/news/stm-excellent-start-to-new-resource-growth-drilling-program--38be4ace-5bbb-4245-87ed-dcb716b1ae00#fact-drill-facts-13)

Bramaderos · copper

#### Identity

- Hole ID: Includes
- Project: Bramaderos
- Commodity: copper
- Region: ecuador
- Reported Region: Ecuador
- Ticker: STM

#### Geometry

- Grade: 0.04
- Grade Unit: %
- Intercept: 26.9 m
- From: 0 m
- To: 26.9 m

#### Classification

- Deposit Type: porphyry
- Sample Type: drill
- Group ID: Includes:0-26.9
- Mining Method: open\_pit

#### Location

- CRS: PSAD56 Zone 17S

#### Review

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

#### Dates

- Event date: 2026-04-13T00:00:00.000Z

Reasoning: Expanded from assay table. 0.04 % copper is below against the porphyry deposit band \[0.8, 0.4, 0.25, 0.15\] %. Grade×width 1.1 %·m is below.

- Negative factor: 0.04 % copper is below the weak threshold \(0.15 %\) on the porphyry deposit band.

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

Evidence · table

> 0.04

Context: Includes

### Includes

[Link to this fact](https://atlas-staging.minestarters.com/news/stm-excellent-start-to-new-resource-growth-drilling-program--38be4ace-5bbb-4245-87ed-dcb716b1ae00#fact-drill-facts-14)

Bramaderos · silver

#### Identity

- Hole ID: Includes
- Project: Bramaderos
- Commodity: silver
- Region: ecuador
- Reported Region: Ecuador
- Ticker: STM

#### Geometry

- Grade: 4.38
- Grade Unit: g/t
- Intercept: 26.9 m
- From: 0 m
- To: 26.9 m

#### Classification

- Deposit Type: porphyry
- Sample Type: drill
- Group ID: Includes:0-26.9
- Mining Method: open\_pit

#### Location

- CRS: PSAD56 Zone 17S

#### Review

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

#### Dates

- Event date: 2026-04-13T00:00:00.000Z

Reasoning: Expanded from assay table. 4.38 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 117.8 g/t·m is below.

- Negative factor: 4.38 g/t silver is below the weak threshold \(30 g/t\) on the default band.

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

Evidence · table

> 4.38

Context: Includes

### Includes

[Link to this fact](https://atlas-staging.minestarters.com/news/stm-excellent-start-to-new-resource-growth-drilling-program--38be4ace-5bbb-4245-87ed-dcb716b1ae00#fact-drill-facts-15)

Bramaderos · mo

#### Identity

- Hole ID: Includes
- Project: Bramaderos
- Commodity: mo
- Region: ecuador
- Reported Region: Ecuador
- Ticker: STM

#### Geometry

- Grade: 23.11
- Grade Unit: ppm
- Intercept: 26.9 m
- From: 0 m
- To: 26.9 m

#### Classification

- Deposit Type: porphyry
- Sample Type: drill
- Group ID: Includes:0-26.9
- Mining Method: open\_pit

#### Location

- CRS: PSAD56 Zone 17S

#### Review

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

#### Dates

- Event date: 2026-04-13T00:00:00.000Z

Reasoning: Expanded from assay table: 23.11 ppm mo. No grade band defined for this commodity, so the score is a placeholder.

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

Evidence · table

> 23.11

Context: Includes

### CPDD002

[Link to this fact](https://atlas-staging.minestarters.com/news/stm-excellent-start-to-new-resource-growth-drilling-program--38be4ace-5bbb-4245-87ed-dcb716b1ae00#fact-drill-facts-16)

Bramaderos · gold

#### Identity

- Hole ID: CPDD002
- Project: Bramaderos
- Commodity: gold
- Region: ecuador
- Reported Region: Ecuador
- Ticker: STM

#### Geometry

- Grade: 0.2
- Grade Unit: g/t
- Intercept: 162.17 m
- From: 0 m
- To: 162.17 m

#### Classification

- Deposit Type: porphyry
- Sample Type: drill
- Group ID: CPDD002:0-162.17
- Mining Method: open\_pit

#### Location

- CRS: PSAD56 Zone 17S

#### Review

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

#### Dates

- Event date: 2026-04-13T00:00:00.000Z

Reasoning: Expanded from assay table. 0.2 g/t gold is moderate against the porphyry deposit band \[1, 0.5, 0.3, 0.15\] g/t. Grade×width 32.4 g/t·m is moderate \(grade alone is weak; the better of the two is used\).

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

Evidence · table

> 0.20

Context: CPDD002

### CPDD002

[Link to this fact](https://atlas-staging.minestarters.com/news/stm-excellent-start-to-new-resource-growth-drilling-program--38be4ace-5bbb-4245-87ed-dcb716b1ae00#fact-drill-facts-17)

Bramaderos · copper

#### Identity

- Hole ID: CPDD002
- Project: Bramaderos
- Commodity: copper
- Region: ecuador
- Reported Region: Ecuador
- Ticker: STM

#### Geometry

- Grade: 0.07
- Grade Unit: %
- Intercept: 162.17 m
- From: 0 m
- To: 162.17 m

#### Classification

- Deposit Type: porphyry
- Sample Type: drill
- Group ID: CPDD002:0-162.17
- Mining Method: open\_pit

#### Location

- CRS: PSAD56 Zone 17S

#### Review

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

#### Dates

- Event date: 2026-04-13T00:00:00.000Z

Reasoning: Expanded from assay table. 0.07 % copper is below against the porphyry deposit band \[0.8, 0.4, 0.25, 0.15\] %. Grade×width 11.4 %·m is below.

- Negative factor: 0.07 % copper is below the weak threshold \(0.15 %\) on the porphyry deposit band.

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

Evidence · table

> 0.07

Context: CPDD002

### CPDD002

[Link to this fact](https://atlas-staging.minestarters.com/news/stm-excellent-start-to-new-resource-growth-drilling-program--38be4ace-5bbb-4245-87ed-dcb716b1ae00#fact-drill-facts-18)

Bramaderos · silver

#### Identity

- Hole ID: CPDD002
- Project: Bramaderos
- Commodity: silver
- Region: ecuador
- Reported Region: Ecuador
- Ticker: STM

#### Geometry

- Grade: 0.65
- Grade Unit: g/t
- Intercept: 162.17 m
- From: 0 m
- To: 162.17 m

#### Classification

- Deposit Type: porphyry
- Sample Type: drill
- Group ID: CPDD002:0-162.17
- Mining Method: open\_pit

#### Location

- CRS: PSAD56 Zone 17S

#### Review

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

#### Dates

- Event date: 2026-04-13T00:00:00.000Z

Reasoning: Expanded from assay table. 0.65 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 105.4 g/t·m is below.

- Negative factor: 0.65 g/t silver is below the weak threshold \(30 g/t\) on the default band.

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

Evidence · table

> 0.65

Context: CPDD002

### CPDD002

[Link to this fact](https://atlas-staging.minestarters.com/news/stm-excellent-start-to-new-resource-growth-drilling-program--38be4ace-5bbb-4245-87ed-dcb716b1ae00#fact-drill-facts-19)

Bramaderos · mo

#### Identity

- Hole ID: CPDD002
- Project: Bramaderos
- Commodity: mo
- Region: ecuador
- Reported Region: Ecuador
- Ticker: STM

#### Geometry

- Grade: 6.59
- Grade Unit: ppm
- Intercept: 162.17 m
- From: 0 m
- To: 162.17 m

#### Classification

- Deposit Type: porphyry
- Sample Type: drill
- Group ID: CPDD002:0-162.17
- Mining Method: open\_pit

#### Location

- CRS: PSAD56 Zone 17S

#### Review

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

#### Dates

- Event date: 2026-04-13T00:00:00.000Z

Reasoning: Expanded from assay table: 6.59 ppm mo. No grade band defined for this commodity, so the score is a placeholder.

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

Evidence · table

> 6.59

Context: CPDD002

### Includes

[Link to this fact](https://atlas-staging.minestarters.com/news/stm-excellent-start-to-new-resource-growth-drilling-program--38be4ace-5bbb-4245-87ed-dcb716b1ae00#fact-drill-facts-20)

Bramaderos · gold

#### Identity

- Hole ID: Includes
- Project: Bramaderos
- Commodity: gold
- Region: ecuador
- Reported Region: Ecuador
- Ticker: STM

#### Geometry

- Grade: 0.27
- Grade Unit: g/t
- Intercept: 58 m
- From: 57 m
- To: 115 m

#### Classification

- Deposit Type: porphyry
- Sample Type: drill
- Group ID: Includes:57-115
- Mining Method: open\_pit

#### Location

- CRS: PSAD56 Zone 17S

#### Review

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

#### Dates

- Event date: 2026-04-13T00:00:00.000Z

Reasoning: Expanded from assay table. 0.27 g/t gold is weak against the porphyry deposit band \[1, 0.5, 0.3, 0.15\] g/t. Grade×width 15.7 g/t·m is weak.

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

Evidence · table

> 0.27

Context: Includes

### Includes

[Link to this fact](https://atlas-staging.minestarters.com/news/stm-excellent-start-to-new-resource-growth-drilling-program--38be4ace-5bbb-4245-87ed-dcb716b1ae00#fact-drill-facts-21)

Bramaderos · copper

#### Identity

- Hole ID: Includes
- Project: Bramaderos
- Commodity: copper
- Region: ecuador
- Reported Region: Ecuador
- Ticker: STM

#### Geometry

- Grade: 0.09
- Grade Unit: %
- Intercept: 58 m
- From: 57 m
- To: 115 m

#### Classification

- Deposit Type: porphyry
- Sample Type: drill
- Group ID: Includes:57-115
- Mining Method: open\_pit

#### Location

- CRS: PSAD56 Zone 17S

#### Review

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

#### Dates

- Event date: 2026-04-13T00:00:00.000Z

Reasoning: Expanded from assay table. 0.09 % copper is below against the porphyry deposit band \[0.8, 0.4, 0.25, 0.15\] %. Grade×width 5.2 %·m is below.

- Negative factor: 0.09 % copper is below the weak threshold \(0.15 %\) on the porphyry deposit band.

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

Evidence · table

> 0.09

Context: Includes

### Includes

[Link to this fact](https://atlas-staging.minestarters.com/news/stm-excellent-start-to-new-resource-growth-drilling-program--38be4ace-5bbb-4245-87ed-dcb716b1ae00#fact-drill-facts-22)

Bramaderos · silver

#### Identity

- Hole ID: Includes
- Project: Bramaderos
- Commodity: silver
- Region: ecuador
- Reported Region: Ecuador
- Ticker: STM

#### Geometry

- Grade: 0.86
- Grade Unit: g/t
- Intercept: 58 m
- From: 57 m
- To: 115 m

#### Classification

- Deposit Type: porphyry
- Sample Type: drill
- Group ID: Includes:57-115
- Mining Method: open\_pit

#### Location

- CRS: PSAD56 Zone 17S

#### Review

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

#### Dates

- Event date: 2026-04-13T00:00:00.000Z

Reasoning: Expanded from assay table. 0.86 g/t silver is below against the default band \[500, 200, 100, 30\] g/t. Grade×width 49.9 g/t·m is below.

- Negative factor: 0.86 g/t silver is below the weak threshold \(30 g/t\) on the default band.

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

Evidence · table

> 0.86

Context: Includes

### Includes

[Link to this fact](https://atlas-staging.minestarters.com/news/stm-excellent-start-to-new-resource-growth-drilling-program--38be4ace-5bbb-4245-87ed-dcb716b1ae00#fact-drill-facts-23)

Bramaderos · mo

#### Identity

- Hole ID: Includes
- Project: Bramaderos
- Commodity: mo
- Region: ecuador
- Reported Region: Ecuador
- Ticker: STM

#### Geometry

- Grade: 5.67
- Grade Unit: ppm
- Intercept: 58 m
- From: 57 m
- To: 115 m

#### Classification

- Deposit Type: porphyry
- Sample Type: drill
- Group ID: Includes:57-115
- Mining Method: open\_pit

#### Location

- CRS: PSAD56 Zone 17S

#### Review

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

#### Dates

- Event date: 2026-04-13T00:00:00.000Z

Reasoning: Expanded from assay table: 5.67 ppm mo. No grade band defined for this commodity, so the score is a placeholder.

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

Evidence · table

> 5.67

Context: Includes

## Resource Estimates (3)

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/stm-excellent-start-to-new-resource-growth-drilling-program--38be4ace-5bbb-4245-87ed-dcb716b1ae00#fact-resource-facts-1)

gold

#### Identity

- Commodity: gold
- Ticker: STM

#### Resource Data

- Category: inferred
- Tonnes: 59000000
- Grade: 0.4
- Grade Unit: g/t
- Contained Metal: 700
- Contained Unit: koz

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-04-13T00:00:00.000Z

Reasoning: A 200m intercept at 0.45 g/t AuEq is a strong result for a porphyry system, confirming mineralisation continuity at depth and contributing to resource growth. \(Expanded from multi-commodity resource table for completeness.\)

- Positive factor: Wide mineralised intercept for porphyry

- Positive factor: Confirms continuity at depth

- Positive factor: New drilling program aimed at resource growth

- Positive factor: Good QA/QC disclosure

- Positive factor: Metal equivalent assumptions disclosed

- Negative factor: True width not known

Evidence · table

> 0.40

Context: 59

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/stm-excellent-start-to-new-resource-growth-drilling-program--38be4ace-5bbb-4245-87ed-dcb716b1ae00#fact-resource-facts-2)

copper

#### Identity

- Commodity: copper
- Ticker: STM

#### Resource Data

- Category: inferred
- Tonnes: 59000000
- Grade: 0.13
- Grade Unit: %
- Contained Metal: 70
- Contained Unit: kt

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-04-13T00:00:00.000Z

Reasoning: A 200m intercept at 0.45 g/t AuEq is a strong result for a porphyry system, confirming mineralisation continuity at depth and contributing to resource growth. \(Expanded from multi-commodity resource table for completeness.\)

- Positive factor: Wide mineralised intercept for porphyry

- Positive factor: Confirms continuity at depth

- Positive factor: New drilling program aimed at resource growth

- Positive factor: Good QA/QC disclosure

- Positive factor: Metal equivalent assumptions disclosed

- Negative factor: True width not known

Evidence · table

> 0.13

Context: 59

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/stm-excellent-start-to-new-resource-growth-drilling-program--38be4ace-5bbb-4245-87ed-dcb716b1ae00#fact-resource-facts-3)

silver

#### Identity

- Commodity: silver
- Ticker: STM

#### Resource Data

- Category: inferred
- Tonnes: 59000000
- Grade: 0.65
- Grade Unit: g/t
- Contained Metal: 1200
- Contained Unit: koz

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-04-13T00:00:00.000Z

Reasoning: A 200m intercept at 0.45 g/t AuEq is a strong result for a porphyry system, confirming mineralisation continuity at depth and contributing to resource growth. \(Expanded from multi-commodity resource table for completeness.\)

- Positive factor: Wide mineralised intercept for porphyry

- Positive factor: Confirms continuity at depth

- Positive factor: New drilling program aimed at resource growth

- Positive factor: Good QA/QC disclosure

- Positive factor: Metal equivalent assumptions disclosed

- Negative factor: True width not known

Evidence · table

> 0.65

Context: 59

## 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.