STM: Excellent start to new resource growth drilling program
Original announcement by asx on
- 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
Analysis by Minestarters Atlas
Minestarters Atlas analysis
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 factors
- Wide, high-grade intercepts for porphyry system
- Confirms continuity of mineralisation at depth
- New drilling program aimed at increasing existing resource
- Detailed QA/QC disclosure and QP sign-off
- Metal equivalent assumptions are transparently disclosed
Negative factors
- 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 Extensionpositive
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 Disclosedpositive
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 Onlynegative
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
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)
CPDD002Bramaderos · goldGrade: 0.27Grade Unit: g/tIntercept: 58 mView all detailsHide details
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 factors
- Higher-grade sub-interval within a wide intercept
- Strong grade for porphyry
- Confirms continuity at depth
- New drilling program aimed at resource growth
- Good QA/QC disclosure
- Metal equivalent assumptions disclosed
Negative factors
- True width not known
Evidence · table
“0.42”
Context: 58
CPDD001Bramaderos · goldGrade: 0.33Grade Unit: g/tIntercept: 200 mView all detailsHide details
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 factors
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“0.33”
Context: CPDD001
CPDD001Bramaderos · copperGrade: 0.07Grade Unit: %Intercept: 200 mView all detailsHide details
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 factors
- 0.07 % copper is below the weak threshold (0.15 %) on the porphyry deposit band.
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“0.07”
Context: CPDD001
CPDD001Bramaderos · silverGrade: 1.1Grade Unit: g/tIntercept: 200 mView all detailsHide details
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 factors
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“1.10”
Context: CPDD001
CPDD001Bramaderos · moGrade: 9.15Grade Unit: ppmIntercept: 200 mView all detailsHide details
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 factors
- No grade rubric for mo; intercept not scored.
Evidence · table
“9.15”
Context: CPDD001
IncludesBramaderos · goldGrade: 0.52Grade Unit: g/tIntercept: 50.55 mView all detailsHide details
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 factors
- 0.52 g/t gold is strong on the porphyry deposit band.
Negative factors
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“0.52”
Context: Includes
IncludesBramaderos · copperGrade: 0.05Grade Unit: %Intercept: 50.55 mView all detailsHide details
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 factors
- 0.05 % copper is below the weak threshold (0.15 %) on the porphyry deposit band.
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“0.05”
Context: Includes
IncludesBramaderos · silverGrade: 2.75Grade Unit: g/tIntercept: 50.55 mView all detailsHide details
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 factors
- 2.75 g/t silver is below the weak threshold (30 g/t) on the default band.
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“2.75”
Context: Includes
IncludesBramaderos · moGrade: 20.94Grade Unit: ppmIntercept: 50.55 mView all detailsHide details
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 factors
- No grade rubric for mo; intercept not scored.
Evidence · table
“20.94”
Context: Includes
IncludesBramaderos · goldGrade: 0.65Grade Unit: g/tIntercept: 26.9 mView all detailsHide details
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 factors
- 0.65 g/t gold is strong on the porphyry deposit band.
Negative factors
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“0.65”
Context: Includes
IncludesBramaderos · copperGrade: 0.04Grade Unit: %Intercept: 26.9 mView all detailsHide details
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 factors
- 0.04 % copper is below the weak threshold (0.15 %) on the porphyry deposit band.
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“0.04”
Context: Includes
IncludesBramaderos · silverGrade: 4.38Grade Unit: g/tIntercept: 26.9 mView all detailsHide details
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 factors
- 4.38 g/t silver is below the weak threshold (30 g/t) on the default band.
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“4.38”
Context: Includes
IncludesBramaderos · moGrade: 23.11Grade Unit: ppmIntercept: 26.9 mView all detailsHide details
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 factors
- No grade rubric for mo; intercept not scored.
Evidence · table
“23.11”
Context: Includes
CPDD002Bramaderos · goldGrade: 0.2Grade Unit: g/tIntercept: 162.17 mView all detailsHide details
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 factors
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“0.20”
Context: CPDD002
CPDD002Bramaderos · copperGrade: 0.07Grade Unit: %Intercept: 162.17 mView all detailsHide details
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 factors
- 0.07 % copper is below the weak threshold (0.15 %) on the porphyry deposit band.
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“0.07”
Context: CPDD002
CPDD002Bramaderos · silverGrade: 0.65Grade Unit: g/tIntercept: 162.17 mView all detailsHide details
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 factors
- 0.65 g/t silver is below the weak threshold (30 g/t) on the default band.
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“0.65”
Context: CPDD002
CPDD002Bramaderos · moGrade: 6.59Grade Unit: ppmIntercept: 162.17 mView all detailsHide details
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 factors
- No grade rubric for mo; intercept not scored.
Evidence · table
“6.59”
Context: CPDD002
IncludesBramaderos · goldGrade: 0.27Grade Unit: g/tIntercept: 58 mView all detailsHide details
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 factors
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“0.27”
Context: Includes
IncludesBramaderos · copperGrade: 0.09Grade Unit: %Intercept: 58 mView all detailsHide details
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 factors
- 0.09 % copper is below the weak threshold (0.15 %) on the porphyry deposit band.
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“0.09”
Context: Includes
IncludesBramaderos · silverGrade: 0.86Grade Unit: g/tIntercept: 58 mView all detailsHide details
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 factors
- 0.86 g/t silver is below the weak threshold (30 g/t) on the default band.
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“0.86”
Context: Includes
IncludesBramaderos · moGrade: 5.67Grade Unit: ppmIntercept: 58 mView all detailsHide details
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 factors
- No grade rubric for mo; intercept not scored.
Evidence · table
“5.67”
Context: Includes
Resource Estimates (3)
inferredgoldTonnes: 59000000Grade: 0.4Grade Unit: g/tContained Metal: 700Contained Unit: kozView all detailsHide details
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 factors
- Wide mineralised intercept for porphyry
- Confirms continuity at depth
- New drilling program aimed at resource growth
- Good QA/QC disclosure
- Metal equivalent assumptions disclosed
Negative factors
- True width not known
Evidence · table
“0.40”
Context: 59
inferredcopperTonnes: 59000000Grade: 0.13Grade Unit: %Contained Metal: 70Contained Unit: ktView all detailsHide details
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 factors
- Wide mineralised intercept for porphyry
- Confirms continuity at depth
- New drilling program aimed at resource growth
- Good QA/QC disclosure
- Metal equivalent assumptions disclosed
Negative factors
- True width not known
Evidence · table
“0.13”
Context: 59
inferredsilverTonnes: 59000000Grade: 0.65Grade Unit: g/tContained Metal: 1200Contained Unit: kozView all detailsHide details
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 factors
- Wide mineralised intercept for porphyry
- Confirms continuity at depth
- New drilling program aimed at resource growth
- Good QA/QC disclosure
- Metal equivalent assumptions disclosed
Negative factors
- 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.