Great Western Mining Corporation plc Announces Completion of Drilling: Defender Tungsten Project
Original announcement by investingnews on
- Company
- Great Western Mining Corporation PLC
- Ticker
- GWMO
- Exchange
- LSE
- Region
- Nevada, USA
- Primary commodity
- Tungsten
- Secondary commodities
- None reported
- Document categories
- Drill results
- Extracted
- 2026-09-23 07:32:29 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
Great Western Mining Corporation plc has completed its first reverse circulation drilling campaign at the Defender Tungsten Project in Nevada, USA, comprising 23 holes for 2,590 meters. Geological logging and UV inspection visually confirmed scheelite-bearing skarn over wide intervals at three target areas, validating the geological model. While quantitative assay results are pending and expected in Q4 2026, these visual observations will inform a maiden Mineral Resource Estimate.
Reasoning: The company completed its first RC drilling campaign at the Defender Tungsten Project, visually confirming scheelite-bearing skarn over wide intervals, which validates the geological model and will inform a maiden MRE, but quantitative assay results are pending.
Positive factors
- Completion of first drilling campaign
- Visual confirmation of scheelite-bearing skarn over wide intervals
- Validation of geological model
- Supports future maiden Mineral Resource Estimate
- QP/CP sign-off and JORC compliance
Negative factors
- No quantitative assay results reported yet
- Visual observations are not quantitative grades
Low confidence — this extraction should be reviewed alongside the original source.
Facts used in scoring: 3
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: The release states that samples were analyzed at an accredited laboratory (American Assay Laboratories) and that GWM routinely inserts CRMs, blanks, and duplicates into the sample stream.
Evidence · text
“Samples were analysed at American Assay Laboratories, Nevada. AAL is an accredited laboratory. Standard four acid digest and multi-element ICP analysis. ... GWM routinely insert, CRMS, blanks and duplicates into the sample stream.”
No Assay Resultsnegative · Story-specific tag
No canonical definition is currently available.
Why it applies: The document explicitly states that analysis is pending and no exploration results (quantitative grades) are being reported, only visual observations.
Evidence · text
“Analysis is pending and no exploration results are being reported herein.”
Maiden Resource Plannedneutral · Story-specific tag
No canonical definition is currently available.
Why it applies: The company states that the results from the drilling will be used to inform a maiden Mineral Resource Estimate.
Evidence · text
“Samples have been dispatched to an accredited laboratory for assay, and the results will be used to inform a maiden Mineral Resource Estimate ("MRE").”
QP/CP Signedpositive · Story-specific tag
Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.
Why it applies: Mr. J. Hogg and Mr. L. Harvey, Principal Geologists for Addison Mining Services, are named as Competent Persons and Qualified Persons who reviewed and verified the technical information.
Evidence · text
“The technical information in this release which relates to GWMO 's Defender Tungsten Project is based upon and fairly represents information and data presented and reviewed by Mr. Lewis Harvey, MSc., Principal Geologist for Addison Mining Services, who is a Member of the Australian Institute of Geoscientists. The technical information has also been reviewed by Mr. James Hogg MSc, MAIG, Principal Geologist for Addison Mining Services (AMS). Mr Harvey and Mr Hogg have sufficient experience relevant to the style of mineralisation, the type of deposit under consideration and the activity undertaken to qualify as Competent Persons as defined in the JORC Code 2012 edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves, and Qualified Persons under the AIM rules.”
Extracted facts
Stored fact records: 3. Some facts used in scoring do not have a stored record.
Drill Results (3)
Fact 1Defender · tungstenIntercept: 31 mNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Defender
- Commodity
- tungsten
- Region
- usa_nv
- Reported Region
- usa_nv
- Ticker
- GWMO
Geometry
- Intercept
- 31 m
- From
- 15 m
- To
- 46 m
- Intercept Depth
- 15 m
Classification
- Deposit Type
- skarn
- Program
- exploration
- Sample Type
- drill
- Group ID
- Defender:15-46
Location
- Location
- Defender Hill
- CRS
- NAD83 / UTM zone 11N
- EPSG
- 26911
- Loc. Confidence
- medium
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Review
- Needs Review
- Yes
- Review Reason
- drill_no_hole_id
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-23T00:00:00.000Z
Reasoning: Visual inspection confirmed a wide interval of scheelite-bearing skarn, which is encouraging for the project's potential, but quantitative assay results are pending.
Positive factors
- Visual confirmation of scheelite-bearing skarn
- Wide interval
Negative factors
- No quantitative assay results reported
Evidence · text
“Drilling intersected 100 ft (31 m) of continuous skarn from 50 ft (15 m) to 150 ft (46 m) depth, with visible scheelite identified throughout the interval.”
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is 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
Fact 2Defender · tungstenIntercept: 38 mNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Defender
- Commodity
- tungsten
- Region
- usa_nv
- Reported Region
- usa_nv
- Ticker
- GWMO
Geometry
- Intercept
- 38 m
- From
- 0 m
- To
- 38 m
- Intercept Depth
- 0 m
Classification
- Deposit Type
- skarn
- Program
- exploration
- Sample Type
- drill
- Group ID
- Defender:0-38
Location
- Location
- Dough God Mine
- CRS
- NAD83 / UTM zone 11N
- EPSG
- 26911
- Loc. Confidence
- medium
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Review
- Needs Review
- Yes
- Review Reason
- drill_no_hole_id
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-23T00:00:00.000Z
Reasoning: A wide interval of scheelite-bearing skarn was visually confirmed from surface, indicating strong potential, but quantitative assay results are pending.
Positive factors
- Abundant visible scheelite observed
- Wide interval from surface
- Visual confirmation of scheelite-bearing skarn
Negative factors
- No quantitative assay results reported
Evidence · text
“Approximately 125 ft (38 m) of continuous skarn was intersected from surface to 125 ft (38 m) depth, with abundant visible scheelite observed across the full interval”
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is 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
Fact 3Defender · tungstenIntercept: 9 mNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Defender
- Commodity
- tungsten
- Region
- usa_nv
- Reported Region
- usa_nv
- Ticker
- GWMO
Geometry
- Intercept
- 9 m
- From
- 35 m
- To
- 44 m
- Intercept Depth
- 35 m
Classification
- Deposit Type
- skarn
- Program
- exploration
- Sample Type
- drill
- Group ID
- Defender:35-44
Location
- Location
- Pine Crow Mine
- CRS
- NAD83 / UTM zone 11N
- EPSG
- 26911
- Loc. Confidence
- medium
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Review
- Needs Review
- Yes
- Review Reason
- drill_no_hole_id
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-23T00:00:00.000Z
Reasoning: A continuous skarn interval with scheelite UV fluorescence was visually confirmed, but it was narrower than other targets and quantitative assay results are pending.
Positive factors
- Visual confirmation of scheelite-bearing skarn
Negative factors
- No quantitative assay results reported
- Narrows intervals compared to other targets
Evidence · text
“A 30 ft (9 m) interval of continuous skarn was intersected from 115 ft (35 m) to 145 ft (44 m) depth, exhibiting intense scheelite UV fluorescence over narrower intervals compared to the targets further east.”
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is 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.