Andina Copper Intersects 264m at 0.63% Cu from 36m within 504m at 0.48% Cu, Further Expands Mineralized Footprint
Original announcement by tmx on
- Company
- Andina Copper Corporation
- Ticker
- ANDC
- Exchange
- TSX
- Region
- Chocó, Colombia
- Primary commodity
- Copper
- Secondary commodities
- Molybdenum
- Document categories
- Drill results, Other
- Extracted
- 2026-08-22 22:22:30 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Andina Copper reported significant drill results from its Cobrasco Porphyry Copper-Moly discovery in Colombia, highlighted by a 504m intercept at 0.48% Cu in hole CDH010. The results confirm the lateral extent and continuity of the mineralization, expanding the delineated footprint to approximately 1,200m.
Reasoning: The drill hole CDH010 returned a very wide 504m intercept with strong copper grades, extending the known mineralized footprint of the Cobrasco porphyry system.
Positive factors
- significant intercept width
- high grade near surface
- step-out extension
- continuity confirmed
Negative factors
- apparent width only
Facts used in scoring: 13
Classification and evidence
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: The company is using substantial step-outs to delineate the lateral extent of the discovery.
Evidence · text
“using substantial step-outs to delineate the lateral extent”
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: The release details the sampling, preparation, and assaying protocols, including the use of an accredited laboratory (ALS).
Evidence · text
“All sampling was conducted in nominal 2m intervals... Samples were placed in plastic bags... sent to the ALS sample preparation facility”
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 document explicitly states that interval widths are measured down-hole and uncorrected.
Evidence · text
“Interval widths are measured down-hole and uncorrected. They do not necessarily represent true widths”
Extracted facts
Stored fact records: 13. Some facts used in scoring do not have a stored record.
Drill Results (13)
CDH010Cobrasco · copperGrade: 0.48Grade Unit: %Intercept: 504 mView all detailsHide details
Identity
- Hole ID
- CDH010
- Project
- Cobrasco
- Commodity
- copper
- Region
- colombia
- Reported Region
- Chocó, Colombia
- Ticker
- ANDC
Geometry
- Grade
- 0.48
- Grade Unit
- %
- Intercept
- 504 m
- From
- 36 m
- To
- 540 m
- Hole Depth
- 844.65 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- CDH010:36-540
- Mining Method
- open_pit
Location
- Azimuth
- 260 °
- Dip
- -60 °
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-11T00:00:00.000Z
Reasoning: 504m intercept at 0.48% Cu is a very wide and significant porphyry-style intercept.
Positive factors
- exceptional width
Evidence · text
“504m @ 0.48% Cu, 37ppm Mo from 36m”
CDH010Cobrasco · molybdenumGrade: 37Grade Unit: ppmIntercept: 504 mView all detailsHide details
Identity
- Hole ID
- CDH010
- Project
- Cobrasco
- Commodity
- molybdenum
- Region
- colombia
- Reported Region
- Chocó, Colombia
- Ticker
- ANDC
Geometry
- Grade
- 37
- Grade Unit
- ppm
- Intercept
- 504 m
- From
- 36 m
- To
- 540 m
- Hole Depth
- 844.65 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- CDH010:36-540
- Mining Method
- open_pit
Location
- Azimuth
- 260 °
- Dip
- -60 °
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-11T00:00:00.000Z
Reasoning: Co-occurrence of molybdenum with copper in a porphyry system.
Evidence · text
“504m @ 0.48% Cu, 37ppm Mo from 36m”
CDH010Cobrasco · copperGrade: 0.63Grade Unit: %Intercept: 264 mView all detailsHide details
Identity
- Hole ID
- CDH010
- Project
- Cobrasco
- Commodity
- copper
- Region
- colombia
- Reported Region
- Chocó, Colombia
- Ticker
- ANDC
Geometry
- Grade
- 0.63
- Grade Unit
- %
- Intercept
- 264 m
- From
- 36 m
- To
- 300 m
- Hole Depth
- 844.65 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- CDH010:36-300
- Mining Method
- open_pit
Location
- Azimuth
- 260 °
- Dip
- -60 °
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-11T00:00:00.000Z
Reasoning: High grade intercept within a larger mineralized zone.
Positive factors
- strong grade
Evidence · text
“264m @ 0.63% Cu, 35ppm Mo from 36m”
CDH010Cobrasco · molybdenumGrade: 35Grade Unit: ppmIntercept: 264 mView all detailsHide details
Identity
- Hole ID
- CDH010
- Project
- Cobrasco
- Commodity
- molybdenum
- Region
- colombia
- Reported Region
- Chocó, Colombia
- Ticker
- ANDC
Geometry
- Grade
- 35
- Grade Unit
- ppm
- Intercept
- 264 m
- From
- 36 m
- To
- 300 m
- Hole Depth
- 844.65 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- CDH010:36-300
- Mining Method
- open_pit
Location
- Azimuth
- 260 °
- Dip
- -60 °
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-11T00:00:00.000Z
Reasoning: Molybdenum byproduct in the high-grade copper interval.
Evidence · text
“264m @ 0.63% Cu, 35ppm Mo from 36m”
CDH010Cobrasco · copperGrade: 1.18Grade Unit: %Intercept: 20 mView all detailsHide details
Identity
- Hole ID
- CDH010
- Project
- Cobrasco
- Commodity
- copper
- Region
- colombia
- Reported Region
- Chocó, Colombia
- Ticker
- ANDC
Geometry
- Grade
- 1.18
- Grade Unit
- %
- Intercept
- 20 m
- From
- 216 m
- To
- 236 m
- Hole Depth
- 844.65 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- CDH010:216-236
- Mining Method
- open_pit
Location
- Azimuth
- 260 °
- Dip
- -60 °
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-11T00:00:00.000Z
Reasoning: High grade intercept in a magmatic-hydrothermal breccia zone.
Positive factors
- strong grade
Evidence · text
“20m @ 1.18% Cu from 216m”
CDH010Cobrasco · copperGrade: 0.74Grade Unit: %Intercept: 60 mView all detailsHide details
Identity
- Hole ID
- CDH010
- Project
- Cobrasco
- Commodity
- copper
- Region
- colombia
- Reported Region
- Chocó, Colombia
- Ticker
- ANDC
Geometry
- Grade
- 0.74
- Grade Unit
- %
- Intercept
- 60 m
- From
- 186 m
- To
- 246 m
- Hole Depth
- 844.65 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- CDH010:186-246
- Mining Method
- open_pit
Location
- Azimuth
- 260 °
- Dip
- -60 °
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-11T00:00:00.000Z
Reasoning: Significant width and good grade in a breccia zone.
Positive factors
- strong grade
Evidence · text
“60m @ 0.74% Cu from 186m”
CDH010Cobrasco · moGrade: 37Grade Unit: ppmIntercept: 504 mView all detailsHide details
Identity
- Hole ID
- CDH010
- Project
- Cobrasco
- Commodity
- mo
- Region
- colombia
- Reported Region
- Chocó, Colombia
- Ticker
- ANDC
Geometry
- Grade
- 37
- Grade Unit
- ppm
- Intercept
- 504 m
- From
- 36 m
- To
- 540 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- CDH010:36-540
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-11T00:00:00.000Z
Reasoning: Expanded from assay table: 37 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
“37”
Context: CDH010
CDH010Cobrasco · moGrade: 35Grade Unit: ppmIntercept: 264 mView all detailsHide details
Identity
- Hole ID
- CDH010
- Project
- Cobrasco
- Commodity
- mo
- Region
- colombia
- Reported Region
- Chocó, Colombia
- Ticker
- ANDC
Geometry
- Grade
- 35
- Grade Unit
- ppm
- Intercept
- 264 m
- From
- 36 m
- To
- 300 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- CDH010:36-300
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-11T00:00:00.000Z
Reasoning: Expanded from assay table: 35 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
“35”
Context: CDH010
CDH010Cobrasco · copperGrade: 0.62Grade Unit: %Intercept: 36 mView all detailsHide details
Identity
- Hole ID
- CDH010
- Project
- Cobrasco
- Commodity
- copper
- Region
- colombia
- Reported Region
- Chocó, Colombia
- Ticker
- ANDC
Geometry
- Grade
- 0.62
- Grade Unit
- %
- Intercept
- 36 m
- From
- 486 m
- To
- 522 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- CDH010:486-522
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-11T00:00:00.000Z
Reasoning: Expanded from assay table. 0.62 % copper is strong against the porphyry deposit band [0.8, 0.4, 0.25, 0.15] %. Grade×width 22.3 %·m is weak (grade alone is strong; the better of the two is used).
Positive factors
- 0.62 % copper is strong on the porphyry deposit band.
Negative factors
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“0.62”
Context: CDH010
CDH010Cobrasco · copperGrade: 0.4Grade Unit: %Intercept: 84 mView all detailsHide details
Identity
- Hole ID
- CDH010
- Project
- Cobrasco
- Commodity
- copper
- Region
- colombia
- Reported Region
- Chocó, Colombia
- Ticker
- ANDC
Geometry
- Grade
- 0.4
- Grade Unit
- %
- Intercept
- 84 m
- From
- 660 m
- To
- 744 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- CDH010:660-744
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-11T00:00:00.000Z
Reasoning: Expanded from assay table. 0.4 % copper is strong against the porphyry deposit band [0.8, 0.4, 0.25, 0.15] %. Grade×width 33.6 %·m is weak (grade alone is strong; the better of the two is used).
Positive factors
- 0.4 % copper is strong on the porphyry deposit band.
Negative factors
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“0.40”
Context: CDH010
CDH010Cobrasco · moGrade: 91Grade Unit: ppmIntercept: 84 mView all detailsHide details
Identity
- Hole ID
- CDH010
- Project
- Cobrasco
- Commodity
- mo
- Region
- colombia
- Reported Region
- Chocó, Colombia
- Ticker
- ANDC
Geometry
- Grade
- 91
- Grade Unit
- ppm
- Intercept
- 84 m
- From
- 660 m
- To
- 744 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- CDH010:660-744
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-11T00:00:00.000Z
Reasoning: Expanded from assay table: 91 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
“91”
Context: CDH010
CDH010Cobrasco · copperGrade: 0.45Grade Unit: %Intercept: 44 mView all detailsHide details
Identity
- Hole ID
- CDH010
- Project
- Cobrasco
- Commodity
- copper
- Region
- colombia
- Reported Region
- Chocó, Colombia
- Ticker
- ANDC
Geometry
- Grade
- 0.45
- Grade Unit
- %
- Intercept
- 44 m
- From
- 700 m
- To
- 744 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- CDH010:700-744
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-11T00:00:00.000Z
Reasoning: Expanded from assay table. 0.45 % copper is strong against the porphyry deposit band [0.8, 0.4, 0.25, 0.15] %. Grade×width 19.8 %·m is below (grade alone is strong; the better of the two is used).
Positive factors
- 0.45 % copper is strong on the porphyry deposit band.
Negative factors
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“0.45”
Context: CDH010
CDH010Cobrasco · moGrade: 120Grade Unit: ppmIntercept: 44 mView all detailsHide details
Identity
- Hole ID
- CDH010
- Project
- Cobrasco
- Commodity
- mo
- Region
- colombia
- Reported Region
- Chocó, Colombia
- Ticker
- ANDC
Geometry
- Grade
- 120
- Grade Unit
- ppm
- Intercept
- 44 m
- From
- 700 m
- To
- 744 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- CDH010:700-744
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-11T00:00:00.000Z
Reasoning: Expanded from assay table: 120 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
“120”
Context: CDH010
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.