Andina Copper Reports 620 m @ 0.45% Cu, 79 ppm Mo from 62 m, including 146 m @ 0.76% Cu, 107 ppm Mo
Original announcement by tmx on
- Company
- Andina Copper Corporation
- Ticker
- ANDC
- Exchange
- TSX
- Region
- Chocó, Colombia
- Primary commodity
- Copper
- Secondary commodities
- Molybdenum, Gold, Silver
- Document categories
- Drill results
- Extracted
- 2026-08-22 22:43:19 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Andina Copper reported significant copper-molybdenum drill intercepts at its Cobrasco project in Colombia, highlighted by a 620 m intercept in hole CDH004. The results include high-grade breccia zones and suggest the potential for a large-scale porphyry deposit.
Reasoning: The release reports significant, wide copper-molybdenum intercepts in a maiden drilling program, validating the scale of the Cobrasco porphyry system.
Positive factors
- Significant wide intercepts of Cu-Mo mineralization
- Strong copper grades in breccia zones
- Potential for large-scale porphyry deposit
Negative factors
- Low-grade/barren phreatomagmatic breccias at depth
Facts used in scoring: 7
Classification and evidence
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: Release mentions ALS accredited laboratory, sampling protocols, and QP sign-off.
Evidence · text
“All sampling was conducted in nominal 2m intervals... ALS preparation facility in Medellin, an accredited laboratory”
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: CDH005 was designed to expand the mineralized footprint to the southwest.
Evidence · text
“CDH005 was designed to expand the mineralized footprint to the southwest”
Extracted facts
Stored fact records: 7. Some facts used in scoring do not have a stored record.
Drill Results (7)
CDH004Cobrasco · copperGrade: 0.45Grade Unit: %Intercept: 620 mView all detailsHide details
Identity
- Hole ID
- CDH004
- Project
- Cobrasco
- Commodity
- copper
- Region
- colombia
- Reported Region
- Chocó, Colombia
- Ticker
- ANDC
Geometry
- Grade
- 0.45
- Grade Unit
- %
- Intercept
- 620 m
- From
- 62 m
- To
- 682 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- CDH004:62-682
- Mining Method
- open_pit
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Compositing
- Cutoff Grade
- 0.2
- Cutoff Unit
- %
- Max Dilution
- 20 m
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-17T00:00:00.000Z
Reasoning: Wide 620m intercept at 0.45% Cu is strong for a porphyry system.
Positive factors
- Significant width
Evidence · text
“620 m @ 0.45% Cu, 79 ppm Mo from 62 m”
CDH004Cobrasco · molybdenumGrade: 79Grade Unit: ppmIntercept: 620 mView all detailsHide details
Identity
- Hole ID
- CDH004
- Project
- Cobrasco
- Commodity
- molybdenum
- Region
- colombia
- Reported Region
- Chocó, Colombia
- Ticker
- ANDC
Geometry
- Grade
- 79
- Grade Unit
- ppm
- Intercept
- 620 m
- From
- 62 m
- To
- 682 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- CDH004:62-682
- Mining Method
- open_pit
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Compositing
- Cutoff Grade
- 0.2
- Cutoff Unit
- %
- Max Dilution
- 20 m
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-17T00:00:00.000Z
Reasoning: Significant molybdenum content accompanying the copper intercept.
Positive factors
- Co-product mineralization
Evidence · text
“620 m @ 0.45% Cu, 79 ppm Mo from 62 m”
CDH004Cobrasco · copperGrade: 0.0002Grade Unit: %View all detailsHide details
Identity
- Hole ID
- CDH004
- Project
- Cobrasco
- Commodity
- copper
- Region
- colombia
- Reported Region
- Chocó, Colombia
- Ticker
- ANDC
Geometry
- Grade
- 0.0002
- Grade Unit
- %
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Mining Method
- open_pit
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Compositing
- Cutoff Grade
- 0.2
- Cutoff Unit
- %
- Max Dilution
- 20 m
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-17T00:00:00.000Z
Reasoning: Low grade phreatomagmatic breccias at depth.
Negative factors
- Low grade
Evidence · text
“averaging 215 ppm Cu”
CDH004Cobrasco · molybdenumGrade: 107Grade Unit: ppmIntercept: 146 mView all detailsHide details
Identity
- Hole ID
- CDH004
- Project
- Cobrasco
- Commodity
- molybdenum
- Region
- colombia
- Reported Region
- Chocó, Colombia
- Ticker
- ANDC
Geometry
- Grade
- 107
- Grade Unit
- ppm
- Intercept
- 146 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- CDH004:sub-interval
- Mining Method
- open_pit
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Compositing
- Cutoff Grade
- 0.2
- Cutoff Unit
- %
- Max Dilution
- 20 m
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-17T00:00:00.000Z
Reasoning: High molybdenum grade within the high-grade copper interval.
Positive factors
- High molybdenum grade
Evidence · text
“including 146 m @ 0.76% Cu, 107 ppm Mo”
CDH004Cobrasco · copperGrade: 0.75Grade Unit: %Intercept: 87 mNeeds review: ungroundedView all detailsHide details
Identity
- Hole ID
- CDH004
- Project
- Cobrasco
- Commodity
- copper
- Region
- colombia
- Reported Region
- Chocó, Colombia
- Ticker
- ANDC
Geometry
- Grade
- 0.75
- Grade Unit
- %
- Intercept
- 87 m
- From
- 579 m
- To
- 666 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- CDH004:579-666
- Mining Method
- open_pit
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Compositing
- Cutoff Grade
- 0.2
- Cutoff Unit
- %
- Max Dilution
- 20 m
Review
- Needs Review
- Yes
- Review Reason
- ungrounded
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-17T00:00:00.000Z
Reasoning: High grade 87m intercept in magmatic-hydrothermal breccias.
Positive factors
- Strong grade in breccia zone
Evidence · text
“average grade of 0.75% Cu over the 579–686 m interval”
CDH004Cobrasco · moGrade: 79Grade Unit: ppmIntercept: 620 mView all detailsHide details
Identity
- Hole ID
- CDH004
- Project
- Cobrasco
- Commodity
- mo
- Region
- colombia
- Reported Region
- Chocó, Colombia
- Ticker
- ANDC
Geometry
- Grade
- 79
- Grade Unit
- ppm
- Intercept
- 620 m
- From
- 62 m
- To
- 682 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- CDH004:62-682
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-17T00:00:00.000Z
Reasoning: Expanded from assay table: 79 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
“79”
Context: CDH004
CDH004Cobrasco · copperGrade: 0.0215Grade Unit: %Intercept: 214.25 mNeeds review: ungroundedView all detailsHide details
Identity
- Hole ID
- CDH004
- Project
- Cobrasco
- Commodity
- copper
- Region
- colombia
- Reported Region
- Chocó, Colombia
- Ticker
- ANDC
Geometry
- Grade
- 0.0215
- Grade Unit
- %
- Intercept
- 214.25 m
- From
- 686 m
- To
- 900.25 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- CDH004:686-900.25
- Mining Method
- open_pit
Review
- Needs Review
- Yes
- Review Reason
- ungrounded
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-17T00:00:00.000Z
Reasoning: Expanded from assay table. 0.0215 % copper is below against the porphyry deposit band [0.8, 0.4, 0.25, 0.15] %. Grade×width 4.6 %·m is below.
Negative factors
- 0.0215 % 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
“0.0215”
Context: CDH004
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.