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
- Extracted
- 2026-09-15 10:31:34 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 hole CDH010 intersecting 504m at 0.48% Cu. The results include high-grade sub-intervals up to 1.18% Cu and demonstrate continued lateral and vertical expansion of the mineralized system.
Reasoning: The drill hole CDH010 returned a very wide, high-grade copper-molybdenum intercept that expands the known footprint of the Cobrasco porphyry system.
Positive factors
- Significant width and grade intercept (504m @ 0.48% Cu)
- High-grade sub-intervals (20m @ 1.18% Cu)
- Expansion of mineralized footprint
- Strong continuity of mineralization
Negative factors
- Apparent width only (no true width reported)
Facts used in scoring: 11
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
“Samples were placed in plastic bags with non-repeatable sample tags”
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: 11. Some facts used in scoring do not have a stored record.
Drill Results (11)
CDH010Cobrasco · copperGrade: 0.48Grade Unit: %Intercept: 504 mView all detailsHide details
Identity
- Hole ID
- CDH010
- Project
- Cobrasco
- Commodity
- copper
- Region
- colombia
- Reported Region
- colombia
- Ticker
- ANDC
Geometry
- Grade
- 0.48
- Grade Unit
- %
- Intercept
- 504 m
- From
- 36 m
- To
- 540 m
- Hole Depth
- 180.5 m
- Intercept Depth
- 36 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- CDH010:36-540
- Mining Method
- open_pit
Location
- Loc. Confidence
- medium
QA/QC
- Laboratory
- ALS
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards
Compositing
- Cutoff Grade
- 0.2
- Cutoff Unit
- % Cu
- Dilution Disclosed
- Yes
- Max Dilution
- 20 m
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-11T00:00:00.000Z
Reasoning: 504m at 0.48% Cu is a significant porphyry intercept.
Positive factors
- Large width intercept
- Strong grade for porphyry
Evidence · text
“504m @ 0.48% Cu, 37ppm Mo from 36m”
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not true
Compositing Transparentpositive
Cut-off grade and internal dilution rules are clearly stated for reported intervals.
Why it applies: cutoff_grade and internal dilution are both stated
CDH010Cobrasco · molybdenumGrade: 37Grade Unit: ppmIntercept: 504 mView all detailsHide details
Identity
- Hole ID
- CDH010
- Project
- Cobrasco
- Commodity
- molybdenum
- Region
- colombia
- Reported Region
- colombia
- Ticker
- ANDC
Geometry
- Grade
- 37
- Grade Unit
- ppm
- Intercept
- 504 m
- From
- 36 m
- To
- 540 m
- Hole Depth
- 180.5 m
- Intercept Depth
- 36 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- CDH010:36-540
- Mining Method
- open_pit
Location
- Loc. Confidence
- medium
QA/QC
- Laboratory
- ALS
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards
Compositing
- Cutoff Grade
- 0.2
- Cutoff Unit
- % Cu
- Dilution Disclosed
- Yes
- Max Dilution
- 20 m
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-11T00:00:00.000Z
Reasoning: Molybdenum is a significant byproduct in this intercept.
Positive factors
- Co-occurrence with high grade copper
Evidence · text
“504m @ 0.48% Cu, 37ppm Mo from 36m”
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not true
Compositing Transparentpositive
Cut-off grade and internal dilution rules are clearly stated for reported intervals.
Why it applies: cutoff_grade and internal dilution are both stated
CDH010Cobrasco · copperGrade: 0.63Grade Unit: %Intercept: 264 mView all detailsHide details
Identity
- Hole ID
- CDH010
- Project
- Cobrasco
- Commodity
- copper
- Region
- colombia
- Reported Region
- colombia
- Ticker
- ANDC
Geometry
- Grade
- 0.63
- Grade Unit
- %
- Intercept
- 264 m
- From
- 36 m
- To
- 300 m
- Hole Depth
- 180.5 m
- Intercept Depth
- 36 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- CDH010:36-300
- Mining Method
- open_pit
Location
- Loc. Confidence
- medium
QA/QC
- Laboratory
- ALS
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards
Compositing
- Cutoff Grade
- 0.2
- Cutoff Unit
- % Cu
- Dilution Disclosed
- Yes
- Max Dilution
- 20 m
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-11T00:00:00.000Z
Reasoning: Strong intercept within the larger mineralized zone.
Positive factors
- High grade for porphyry
Evidence · text
“264m @ 0.63% Cu, 35ppm Mo from 36m”
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not true
Compositing Transparentpositive
Cut-off grade and internal dilution rules are clearly stated for reported intervals.
Why it applies: cutoff_grade and internal dilution are both stated
CDH010Cobrasco · molybdenumGrade: 35Grade Unit: ppmIntercept: 264 mView all detailsHide details
Identity
- Hole ID
- CDH010
- Project
- Cobrasco
- Commodity
- molybdenum
- Region
- colombia
- Reported Region
- colombia
- Ticker
- ANDC
Geometry
- Grade
- 35
- Grade Unit
- ppm
- Intercept
- 264 m
- From
- 36 m
- To
- 300 m
- Hole Depth
- 180.5 m
- Intercept Depth
- 36 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- CDH010:36-300
- Mining Method
- open_pit
Location
- Loc. Confidence
- medium
QA/QC
- Laboratory
- ALS
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards
Compositing
- Cutoff Grade
- 0.2
- Cutoff Unit
- % Cu
- Dilution Disclosed
- Yes
- Max Dilution
- 20 m
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-11T00:00:00.000Z
Reasoning: Byproduct molybdenum present.
Evidence · text
“264m @ 0.63% Cu, 35ppm Mo from 36m”
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not true
Compositing Transparentpositive
Cut-off grade and internal dilution rules are clearly stated for reported intervals.
Why it applies: cutoff_grade and internal dilution are both stated
CDH010Cobrasco · copperGrade: 1.18Grade Unit: %Intercept: 20 mView all detailsHide details
Identity
- Hole ID
- CDH010
- Project
- Cobrasco
- Commodity
- copper
- Region
- colombia
- Reported Region
- colombia
- Ticker
- ANDC
Geometry
- Grade
- 1.18
- Grade Unit
- %
- Intercept
- 20 m
- From
- 216 m
- To
- 236 m
- Hole Depth
- 180.5 m
- Intercept Depth
- 216 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- CDH010:216-236
- Mining Method
- open_pit
Location
- Loc. Confidence
- medium
QA/QC
- Laboratory
- ALS
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards
Compositing
- Cutoff Grade
- 0.2
- Cutoff Unit
- % Cu
- Dilution Disclosed
- Yes
- Max Dilution
- 20 m
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-11T00:00:00.000Z
Reasoning: Excellent high-grade intercept in a magmatic-hydrothermal breccia zone.
Positive factors
- High grade intercept
Evidence · text
“20m @ 1.18% Cu from 216m”
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not true
Compositing Transparentpositive
Cut-off grade and internal dilution rules are clearly stated for reported intervals.
Why it applies: cutoff_grade and internal dilution are both stated
CDH010Cobrasco · copperGrade: 0.74Grade Unit: %Intercept: 60 mView all detailsHide details
Identity
- Hole ID
- CDH010
- Project
- Cobrasco
- Commodity
- copper
- Region
- colombia
- Reported Region
- colombia
- Ticker
- ANDC
Geometry
- Grade
- 0.74
- Grade Unit
- %
- Intercept
- 60 m
- From
- 186 m
- To
- 246 m
- Hole Depth
- 180.5 m
- Intercept Depth
- 186 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- CDH010:186-246
- Mining Method
- open_pit
Location
- Loc. Confidence
- medium
QA/QC
- Laboratory
- ALS
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards
Compositing
- Cutoff Grade
- 0.2
- Cutoff Unit
- % Cu
- Dilution Disclosed
- Yes
- Max Dilution
- 20 m
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-11T00:00:00.000Z
Reasoning: Significant intercept in high-grade zone.
Positive factors
- Strong grade and width
Evidence · text
“60m @ 0.74% Cu from 186m”
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not true
Compositing Transparentpositive
Cut-off grade and internal dilution rules are clearly stated for reported intervals.
Why it applies: cutoff_grade and internal dilution are both stated
CDH010Cobrasco · copperGrade: 0.62Grade Unit: %Intercept: 36 mView all detailsHide details
Identity
- Hole ID
- CDH010
- Project
- Cobrasco
- Commodity
- copper
- Region
- colombia
- Reported Region
- colombia
- Ticker
- ANDC
Geometry
- Grade
- 0.62
- Grade Unit
- %
- Intercept
- 36 m
- From
- 486 m
- To
- 522 m
- Hole Depth
- 180.5 m
- Intercept Depth
- 486 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- CDH010:486-522
- Mining Method
- open_pit
QA/QC
- Laboratory
- ALS
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards
Compositing
- Dilution Disclosed
- Yes
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
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
CDH010Cobrasco · copperGrade: 0.4Grade Unit: %Intercept: 84 mView all detailsHide details
Identity
- Hole ID
- CDH010
- Project
- Cobrasco
- Commodity
- copper
- Region
- colombia
- Reported Region
- colombia
- Ticker
- ANDC
Geometry
- Grade
- 0.4
- Grade Unit
- %
- Intercept
- 84 m
- From
- 660 m
- To
- 744 m
- Hole Depth
- 180.5 m
- Intercept Depth
- 660 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- CDH010:660-744
- Mining Method
- open_pit
QA/QC
- Laboratory
- ALS
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards
Compositing
- Dilution Disclosed
- Yes
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
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
CDH010Cobrasco · molybdenumGrade: 91Grade Unit: ppmIntercept: 84 mView all detailsHide details
Identity
- Hole ID
- CDH010
- Project
- Cobrasco
- Commodity
- molybdenum
- Region
- colombia
- Reported Region
- colombia
- Ticker
- ANDC
Geometry
- Grade
- 91
- Grade Unit
- ppm
- Intercept
- 84 m
- From
- 660 m
- To
- 744 m
- Hole Depth
- 180.5 m
- Intercept Depth
- 660 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- CDH010:660-744
- Mining Method
- open_pit
QA/QC
- Laboratory
- ALS
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards
Compositing
- Dilution Disclosed
- Yes
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 molybdenum. No grade band defined for this commodity, so the score is a placeholder.
Negative factors
- No grade rubric for molybdenum; intercept not scored.
Evidence · table
“91”
Context: CDH010
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
CDH010Cobrasco · copperGrade: 0.45Grade Unit: %Intercept: 44 mView all detailsHide details
Identity
- Hole ID
- CDH010
- Project
- Cobrasco
- Commodity
- copper
- Region
- colombia
- Reported Region
- colombia
- Ticker
- ANDC
Geometry
- Grade
- 0.45
- Grade Unit
- %
- Intercept
- 44 m
- From
- 700 m
- To
- 744 m
- Hole Depth
- 180.5 m
- Intercept Depth
- 700 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- CDH010:700-744
- Mining Method
- open_pit
QA/QC
- Laboratory
- ALS
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards
Compositing
- Dilution Disclosed
- Yes
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
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
CDH010Cobrasco · molybdenumGrade: 120Grade Unit: ppmIntercept: 44 mView all detailsHide details
Identity
- Hole ID
- CDH010
- Project
- Cobrasco
- Commodity
- molybdenum
- Region
- colombia
- Reported Region
- colombia
- Ticker
- ANDC
Geometry
- Grade
- 120
- Grade Unit
- ppm
- Intercept
- 44 m
- From
- 700 m
- To
- 744 m
- Hole Depth
- 180.5 m
- Intercept Depth
- 700 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- CDH010:700-744
- Mining Method
- open_pit
QA/QC
- Laboratory
- ALS
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards
Compositing
- Dilution Disclosed
- Yes
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 molybdenum. No grade band defined for this commodity, so the score is a placeholder.
Negative factors
- No grade rubric for molybdenum; intercept not scored.
Evidence · table
“120”
Context: CDH010
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not true
Cut-off Undisclosednegative
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.