Oroco Increases South Zone Certainty at Santo Tomás
Original announcement by tmx on
- Company
- Oroco Resource Corp.
- Ticker
- OCO
- Exchange
- TSX
- Region
- Sinaloa, Mexico
- Primary commodity
- Copper
- Secondary commodities
- Molybdenum, Gold, Silver
- Document categories
- Drill results, Resource update
- Extracted
- 2026-08-24 02:30:52 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Oroco reports Phase 2 drill results from the South Zone of the Santo Tomás copper project, confirming mineralization consistent with the 2024 PEA block model. The program aims to convert Inferred resources to Indicated to support an upcoming Pre-Feasibility Study.
Reasoning: Phase 2 infill drilling confirms existing block model and provides evidence of mineralization extension, supporting the path to PFS.
Positive factors
- Results consistent with PEA block model
- Infill drilling increasing resource certainty
- Visual mineralization extending beyond inferred resource (S031)
Negative factors
- Metal equivalent assumptions differ from previous PEA
Facts used in scoring: 35
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 includes details on certified reference standards, blanks, duplicates, and lab names (ALS).
Evidence · text
“insertion of certified reference standards, blanks, and duplicates”
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: Holes S025 and S029 are explicitly described as infill drilling for block model support.
Evidence · text
“Infill drilling for block model support”
Extracted facts
Stored fact records: 35. Some facts used in scoring do not have a stored record.
Drill Results (35)
S025Santo Tomás · copperGrade: 0.29Grade Unit: %Intercept: 84.94 mView all detailsHide details
Identity
- Hole ID
- S025
- Project
- Santo Tomás
- Commodity
- copper
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.29
- Grade Unit
- %
- Intercept
- 84.94 m
- From
- 37 m
- To
- 121.94 m
Classification
- Sample Type
- drill
- Group ID
- S025:37-121.94
- Mining Method
- open_pit
QA/QC
- Laboratory
- ALS Chemex
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Standard infill intercept confirming model.
Positive factors
- Consistent with PEA block model
Evidence · table
“0.29”
Context: 84.94
S025Santo Tomás · molybdenumGrade: 0.005Grade Unit: %Intercept: 84.94 mView all detailsHide details
Identity
- Hole ID
- S025
- Project
- Santo Tomás
- Commodity
- molybdenum
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.005
- Grade Unit
- %
- Intercept
- 84.94 m
- From
- 37 m
- To
- 121.94 m
Classification
- Sample Type
- drill
- Group ID
- S025:37-121.94
- Mining Method
- open_pit
QA/QC
- Laboratory
- ALS Chemex
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Trace molybdenum.
Evidence · table
“0.005”
Context: 84.94
S025Santo Tomás · goldGrade: 0.014Grade Unit: ppmIntercept: 84.94 mView all detailsHide details
Identity
- Hole ID
- S025
- Project
- Santo Tomás
- Commodity
- gold
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.014
- Grade Unit
- ppm
- Intercept
- 84.94 m
- From
- 37 m
- To
- 121.94 m
Classification
- Sample Type
- drill
- Group ID
- S025:37-121.94
- Mining Method
- open_pit
QA/QC
- Laboratory
- ALS Chemex
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Trace gold.
Evidence · table
“0.014”
Context: 84.94
S025Santo Tomás · silverGrade: 1.65Grade Unit: ppmIntercept: 84.94 mView all detailsHide details
Identity
- Hole ID
- S025
- Project
- Santo Tomás
- Commodity
- silver
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 1.65
- Grade Unit
- ppm
- Intercept
- 84.94 m
- From
- 37 m
- To
- 121.94 m
Classification
- Sample Type
- drill
- Group ID
- S025:37-121.94
- Mining Method
- open_pit
QA/QC
- Laboratory
- ALS Chemex
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Trace silver.
Evidence · table
“1.65”
Context: 84.94
S025Santo Tomás · copperGrade: 0.41Grade Unit: %Intercept: 90 mView all detailsHide details
Identity
- Hole ID
- S025
- Project
- Santo Tomás
- Commodity
- copper
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.41
- Grade Unit
- %
- Intercept
- 90 m
- From
- 131 m
- To
- 221 m
Classification
- Sample Type
- drill
- Group ID
- S025:131-221
- Mining Method
- open_pit
QA/QC
- Laboratory
- ALS Chemex
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Higher grade interval in deeper section.
Positive factors
- Stronger mineralization than S024
Evidence · table
“0.41”
Context: 90
S025Santo Tomás · molybdenumGrade: 0.022Grade Unit: %Intercept: 90 mView all detailsHide details
Identity
- Hole ID
- S025
- Project
- Santo Tomás
- Commodity
- molybdenum
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.022
- Grade Unit
- %
- Intercept
- 90 m
- From
- 131 m
- To
- 221 m
Classification
- Sample Type
- drill
- Group ID
- S025:131-221
- Mining Method
- open_pit
QA/QC
- Laboratory
- ALS Chemex
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Elevated Mo noted in deeper section.
Positive factors
- Higher molybdenum in deeper interval
Evidence · table
“0.022”
Context: 90
S026Santo Tomás · copperGrade: 0.56Grade Unit: %Intercept: 48.6 mView all detailsHide details
Identity
- Hole ID
- S026
- Project
- Santo Tomás
- Commodity
- copper
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.56
- Grade Unit
- %
- Intercept
- 48.6 m
- From
- 42 m
- To
- 90.6 m
Classification
- Sample Type
- drill
- Group ID
- S026:42-90.6
- Mining Method
- open_pit
QA/QC
- Laboratory
- ALS Chemex
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Strong intercept in shallower part of hole.
Positive factors
- Higher grade near top of hole
Evidence · table
“0.56”
Context: 48.6
S026Santo Tomás · molybdenumGrade: 0.015Grade Unit: %Intercept: 48.6 mView all detailsHide details
Identity
- Hole ID
- S026
- Project
- Santo Tomás
- Commodity
- molybdenum
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.015
- Grade Unit
- %
- Intercept
- 48.6 m
- From
- 42 m
- To
- 90.6 m
Classification
- Sample Type
- drill
- Group ID
- S026:42-90.6
- Mining Method
- open_pit
QA/QC
- Laboratory
- ALS Chemex
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Trace molybdenum.
Evidence · table
“0.015”
Context: 48.6
S026Santo Tomás · goldGrade: 0.017Grade Unit: ppmIntercept: 48.6 mView all detailsHide details
Identity
- Hole ID
- S026
- Project
- Santo Tomás
- Commodity
- gold
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.017
- Grade Unit
- ppm
- Intercept
- 48.6 m
- From
- 42 m
- To
- 90.6 m
Classification
- Sample Type
- drill
- Group ID
- S026:42-90.6
- Mining Method
- open_pit
QA/QC
- Laboratory
- ALS Chemex
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Higher gold noted in shallow section.
Positive factors
- Notably higher Au grades near top
Evidence · table
“0.017”
Context: 48.6
S026Santo Tomás · silverGrade: 3.12Grade Unit: ppmIntercept: 48.6 mView all detailsHide details
Identity
- Hole ID
- S026
- Project
- Santo Tomás
- Commodity
- silver
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 3.12
- Grade Unit
- ppm
- Intercept
- 48.6 m
- From
- 42 m
- To
- 90.6 m
Classification
- Sample Type
- drill
- Group ID
- S026:42-90.6
- Mining Method
- open_pit
QA/QC
- Laboratory
- ALS Chemex
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Trace silver.
Evidence · table
“3.12”
Context: 48.6
S028Santo Tomás · copperGrade: 0.38Grade Unit: %Intercept: 44.52 mView all detailsHide details
Identity
- Hole ID
- S028
- Project
- Santo Tomás
- Commodity
- copper
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.38
- Grade Unit
- %
- Intercept
- 44.52 m
- From
- 44 m
- To
- 88.52 m
Classification
- Sample Type
- drill
- Group ID
- S028:44-88.52
- Mining Method
- open_pit
QA/QC
- Laboratory
- ALS Chemex
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Intercept tests western limits.
Positive factors
- Suggests deeper westward mineralization
Evidence · table
“0.38”
Context: 44.52
S029Santo Tomás · copperGrade: 0.35Grade Unit: %Intercept: 58.76 mView all detailsHide details
Identity
- Hole ID
- S029
- Project
- Santo Tomás
- Commodity
- copper
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.35
- Grade Unit
- %
- Intercept
- 58.76 m
- From
- 27 m
- To
- 85.76 m
Classification
- Sample Type
- drill
- Group ID
- S029:27-85.76
- Mining Method
- open_pit
QA/QC
- Laboratory
- ALS Chemex
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Infill hole intersecting shallow mineralization.
Positive factors
- Very near surface mineralization
- Reduces strip compared to block model
Evidence · table
“0.35”
Context: 58.76
S025Santo Tomás · moGrade: 0.005Grade Unit: %Intercept: 84.94 mView all detailsHide details
Identity
- Hole ID
- S025
- Project
- Santo Tomás
- Commodity
- mo
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.005
- Grade Unit
- %
- Intercept
- 84.94 m
- From
- 37 m
- To
- 121.94 m
Classification
- Sample Type
- drill
- Group ID
- S025:37-121.94
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Expanded from assay table: 0.005 % 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
“0.005”
Context: S025
S025Santo Tomás · moGrade: 0.022Grade Unit: %Intercept: 90 mView all detailsHide details
Identity
- Hole ID
- S025
- Project
- Santo Tomás
- Commodity
- mo
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.022
- Grade Unit
- %
- Intercept
- 90 m
- From
- 131 m
- To
- 221 m
Classification
- Sample Type
- drill
- Group ID
- S025:131-221
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Expanded from assay table: 0.022 % 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
“0.022”
Context: S025
S025Santo Tomás · goldGrade: 0.01Grade Unit: ppmIntercept: 90 mView all detailsHide details
Identity
- Hole ID
- S025
- Project
- Santo Tomás
- Commodity
- gold
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.01
- Grade Unit
- ppm
- Intercept
- 90 m
- From
- 131 m
- To
- 221 m
Classification
- Sample Type
- drill
- Group ID
- S025:131-221
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Expanded from assay table: 0.01 ppm gold, reported in a unit the rubric does not cover (g/t).
Negative factors
- Grade unit ppm does not match the gold rubric unit g/t; not scored.
Evidence · table
“0.01”
Context: S025
S025Santo Tomás · silverGrade: 2.38Grade Unit: ppmIntercept: 90 mView all detailsHide details
Identity
- Hole ID
- S025
- Project
- Santo Tomás
- Commodity
- silver
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 2.38
- Grade Unit
- ppm
- Intercept
- 90 m
- From
- 131 m
- To
- 221 m
Classification
- Sample Type
- drill
- Group ID
- S025:131-221
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Expanded from assay table: 2.38 ppm silver, reported in a unit the rubric does not cover (g/t).
Negative factors
- Grade unit ppm does not match the silver rubric unit g/t; not scored.
Evidence · table
“2.38”
Context: S025
S026Santo Tomás · moGrade: 0.015Grade Unit: %Intercept: 48.6 mView all detailsHide details
Identity
- Hole ID
- S026
- Project
- Santo Tomás
- Commodity
- mo
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.015
- Grade Unit
- %
- Intercept
- 48.6 m
- From
- 42 m
- To
- 90.6 m
Classification
- Sample Type
- drill
- Group ID
- S026:42-90.6
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Expanded from assay table: 0.015 % 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
“0.015”
Context: S026
S026Santo Tomás · copperGrade: 0.2Grade Unit: %Intercept: 59 mView all detailsHide details
Identity
- Hole ID
- S026
- Project
- Santo Tomás
- Commodity
- copper
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.2
- Grade Unit
- %
- Intercept
- 59 m
- From
- 93 m
- To
- 152 m
Classification
- Sample Type
- drill
- Group ID
- S026:93-152
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Expanded from assay table. 0.2 % copper is below against the default band [2.5, 1, 0.5, 0.25] %. Grade×width 11.8 %·m is below.
Negative factors
- 0.2 % copper is below the weak threshold (0.25 %) on the default band.
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“0.2”
Context: S026
S026Santo Tomás · moGrade: 0.026Grade Unit: %Intercept: 59 mView all detailsHide details
Identity
- Hole ID
- S026
- Project
- Santo Tomás
- Commodity
- mo
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.026
- Grade Unit
- %
- Intercept
- 59 m
- From
- 93 m
- To
- 152 m
Classification
- Sample Type
- drill
- Group ID
- S026:93-152
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Expanded from assay table: 0.026 % 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
“0.026”
Context: S026
S026Santo Tomás · goldGrade: 0.008Grade Unit: ppmIntercept: 59 mView all detailsHide details
Identity
- Hole ID
- S026
- Project
- Santo Tomás
- Commodity
- gold
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.008
- Grade Unit
- ppm
- Intercept
- 59 m
- From
- 93 m
- To
- 152 m
Classification
- Sample Type
- drill
- Group ID
- S026:93-152
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Expanded from assay table: 0.008 ppm gold, reported in a unit the rubric does not cover (g/t).
Negative factors
- Grade unit ppm does not match the gold rubric unit g/t; not scored.
Evidence · table
“0.008”
Context: S026
S026Santo Tomás · silverGrade: 1.44Grade Unit: ppmIntercept: 59 mView all detailsHide details
Identity
- Hole ID
- S026
- Project
- Santo Tomás
- Commodity
- silver
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 1.44
- Grade Unit
- ppm
- Intercept
- 59 m
- From
- 93 m
- To
- 152 m
Classification
- Sample Type
- drill
- Group ID
- S026:93-152
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Expanded from assay table: 1.44 ppm silver, reported in a unit the rubric does not cover (g/t).
Negative factors
- Grade unit ppm does not match the silver rubric unit g/t; not scored.
Evidence · table
“1.44”
Context: S026
S026Santo Tomás · copperGrade: 0.16Grade Unit: %Intercept: 23.45 mView all detailsHide details
Identity
- Hole ID
- S026
- Project
- Santo Tomás
- Commodity
- copper
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.16
- Grade Unit
- %
- Intercept
- 23.45 m
- From
- 280 m
- To
- 303.45 m
Classification
- Sample Type
- drill
- Group ID
- S026:280-303.45
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Expanded from assay table. 0.16 % copper is below against the default band [2.5, 1, 0.5, 0.25] %. Grade×width 3.8 %·m is below.
Negative factors
- 0.16 % copper is below the weak threshold (0.25 %) on the default band.
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“0.16”
Context: S026
S026Santo Tomás · moGrade: 0.013Grade Unit: %Intercept: 23.45 mView all detailsHide details
Identity
- Hole ID
- S026
- Project
- Santo Tomás
- Commodity
- mo
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.013
- Grade Unit
- %
- Intercept
- 23.45 m
- From
- 280 m
- To
- 303.45 m
Classification
- Sample Type
- drill
- Group ID
- S026:280-303.45
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Expanded from assay table: 0.013 % 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
“0.013”
Context: S026
S026Santo Tomás · goldGrade: 0.011Grade Unit: ppmIntercept: 23.45 mView all detailsHide details
Identity
- Hole ID
- S026
- Project
- Santo Tomás
- Commodity
- gold
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.011
- Grade Unit
- ppm
- Intercept
- 23.45 m
- From
- 280 m
- To
- 303.45 m
Classification
- Sample Type
- drill
- Group ID
- S026:280-303.45
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Expanded from assay table: 0.011 ppm gold, reported in a unit the rubric does not cover (g/t).
Negative factors
- Grade unit ppm does not match the gold rubric unit g/t; not scored.
Evidence · table
“0.011”
Context: S026
S026Santo Tomás · silverGrade: 1.56Grade Unit: ppmIntercept: 23.45 mView all detailsHide details
Identity
- Hole ID
- S026
- Project
- Santo Tomás
- Commodity
- silver
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 1.56
- Grade Unit
- ppm
- Intercept
- 23.45 m
- From
- 280 m
- To
- 303.45 m
Classification
- Sample Type
- drill
- Group ID
- S026:280-303.45
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Expanded from assay table: 1.56 ppm silver, reported in a unit the rubric does not cover (g/t).
Negative factors
- Grade unit ppm does not match the silver rubric unit g/t; not scored.
Evidence · table
“1.56”
Context: S026
S028Santo Tomás · moGrade: 0.013Grade Unit: %Intercept: 44.52 mView all detailsHide details
Identity
- Hole ID
- S028
- Project
- Santo Tomás
- Commodity
- mo
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.013
- Grade Unit
- %
- Intercept
- 44.52 m
- From
- 44 m
- To
- 88.52 m
Classification
- Sample Type
- drill
- Group ID
- S028:44-88.52
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Expanded from assay table: 0.013 % 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
“0.013”
Context: S028
S028Santo Tomás · goldGrade: 0.01Grade Unit: ppmIntercept: 44.52 mView all detailsHide details
Identity
- Hole ID
- S028
- Project
- Santo Tomás
- Commodity
- gold
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.01
- Grade Unit
- ppm
- Intercept
- 44.52 m
- From
- 44 m
- To
- 88.52 m
Classification
- Sample Type
- drill
- Group ID
- S028:44-88.52
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Expanded from assay table: 0.01 ppm gold, reported in a unit the rubric does not cover (g/t).
Negative factors
- Grade unit ppm does not match the gold rubric unit g/t; not scored.
Evidence · table
“0.01”
Context: S028
S028Santo Tomás · silverGrade: 1.83Grade Unit: ppmIntercept: 44.52 mView all detailsHide details
Identity
- Hole ID
- S028
- Project
- Santo Tomás
- Commodity
- silver
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 1.83
- Grade Unit
- ppm
- Intercept
- 44.52 m
- From
- 44 m
- To
- 88.52 m
Classification
- Sample Type
- drill
- Group ID
- S028:44-88.52
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Expanded from assay table: 1.83 ppm silver, reported in a unit the rubric does not cover (g/t).
Negative factors
- Grade unit ppm does not match the silver rubric unit g/t; not scored.
Evidence · table
“1.83”
Context: S028
S029Santo Tomás · moGrade: 0.009Grade Unit: %Intercept: 58.76 mView all detailsHide details
Identity
- Hole ID
- S029
- Project
- Santo Tomás
- Commodity
- mo
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.009
- Grade Unit
- %
- Intercept
- 58.76 m
- From
- 27 m
- To
- 85.76 m
Classification
- Sample Type
- drill
- Group ID
- S029:27-85.76
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Expanded from assay table: 0.009 % 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
“0.009”
Context: S029
S029Santo Tomás · goldGrade: 0.018Grade Unit: ppmIntercept: 58.76 mView all detailsHide details
Identity
- Hole ID
- S029
- Project
- Santo Tomás
- Commodity
- gold
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.018
- Grade Unit
- ppm
- Intercept
- 58.76 m
- From
- 27 m
- To
- 85.76 m
Classification
- Sample Type
- drill
- Group ID
- S029:27-85.76
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Expanded from assay table: 0.018 ppm gold, reported in a unit the rubric does not cover (g/t).
Negative factors
- Grade unit ppm does not match the gold rubric unit g/t; not scored.
Evidence · table
“0.018”
Context: S029
S029Santo Tomás · silverGrade: 2.22Grade Unit: ppmIntercept: 58.76 mView all detailsHide details
Identity
- Hole ID
- S029
- Project
- Santo Tomás
- Commodity
- silver
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 2.22
- Grade Unit
- ppm
- Intercept
- 58.76 m
- From
- 27 m
- To
- 85.76 m
Classification
- Sample Type
- drill
- Group ID
- S029:27-85.76
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Expanded from assay table: 2.22 ppm silver, reported in a unit the rubric does not cover (g/t).
Negative factors
- Grade unit ppm does not match the silver rubric unit g/t; not scored.
Evidence · table
“2.22”
Context: S029
S029Santo Tomás · copperGrade: 0.29Grade Unit: %Intercept: 16.01 mView all detailsHide details
Identity
- Hole ID
- S029
- Project
- Santo Tomás
- Commodity
- copper
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.29
- Grade Unit
- %
- Intercept
- 16.01 m
- From
- 87.32 m
- To
- 103.33 m
Classification
- Sample Type
- drill
- Group ID
- S029:87.32-103.33
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Expanded from assay table. 0.29 % copper is weak against the default band [2.5, 1, 0.5, 0.25] %. Grade×width 4.6 %·m is below (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
“0.29”
Context: S029
S029Santo Tomás · moGrade: 0.007Grade Unit: %Intercept: 16.01 mView all detailsHide details
Identity
- Hole ID
- S029
- Project
- Santo Tomás
- Commodity
- mo
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.007
- Grade Unit
- %
- Intercept
- 16.01 m
- From
- 87.32 m
- To
- 103.33 m
Classification
- Sample Type
- drill
- Group ID
- S029:87.32-103.33
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Expanded from assay table: 0.007 % 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
“0.007”
Context: S029
S029Santo Tomás · goldGrade: 0.007Grade Unit: ppmIntercept: 16.01 mView all detailsHide details
Identity
- Hole ID
- S029
- Project
- Santo Tomás
- Commodity
- gold
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 0.007
- Grade Unit
- ppm
- Intercept
- 16.01 m
- From
- 87.32 m
- To
- 103.33 m
Classification
- Sample Type
- drill
- Group ID
- S029:87.32-103.33
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Expanded from assay table: 0.007 ppm gold, reported in a unit the rubric does not cover (g/t).
Negative factors
- Grade unit ppm does not match the gold rubric unit g/t; not scored.
Evidence · table
“0.007”
Context: S029
S029Santo Tomás · silverGrade: 1.71Grade Unit: ppmIntercept: 16.01 mView all detailsHide details
Identity
- Hole ID
- S029
- Project
- Santo Tomás
- Commodity
- silver
- Region
- mexico
- Reported Region
- Sinaloa, Mexico
- Ticker
- OCO
Geometry
- Grade
- 1.71
- Grade Unit
- ppm
- Intercept
- 16.01 m
- From
- 87.32 m
- To
- 103.33 m
Classification
- Sample Type
- drill
- Group ID
- S029:87.32-103.33
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-06-18T00:00:00.000Z
Reasoning: Expanded from assay table: 1.71 ppm silver, reported in a unit the rubric does not cover (g/t).
Negative factors
- Grade unit ppm does not match the silver rubric unit g/t; not scored.
Evidence · table
“1.71”
Context: S029
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.