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
- Primary commodity
- Tungsten
- Secondary commodities
- None reported
- Document categories
- Other, Metallurgy, Drill results
- Extracted
- 2026-09-23 07:47:33 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Great Western Mining Corporation has completed its 23-hole, 2,590-meter reverse circulation drilling campaign at the Defender Tungsten Project in Nevada. Visual inspection of drill cuttings confirmed multiple wide intercepts of scheelite-bearing skarn, validating the geological model. Samples have been sent to an accredited laboratory for assay, with results expected in Q4 2026, which will inform a maiden Mineral Resource Estimate. The company highlighted prior metallurgical testwork confirming the project's amenability to standard processing.
Reasoning: Great Western Mining announced the completion of its drilling campaign at the Defender Tungsten Project, with encouraging visual observations of scheelite-bearing skarn. While this is a positive step towards a maiden MRE, the lack of assay results means the full impact is yet to be determined. Prior metallurgical work indicates good processing amenability.
Positive factors
- Drilling campaign successfully completed, meeting objectives.
- Visual observations confirm scheelite-bearing skarn in multiple wide intervals, validating geological model.
- Samples dispatched to an accredited laboratory for assay, with results expected soon.
- Drilling will inform a maiden Mineral Resource Estimate.
- Prior metallurgical testwork confirmed high tungsten recovery.
Negative factors
- No assay results are reported in this announcement, limiting immediate quantitative assessment.
- Drill sample recovery data has not been assessed to date, and potential biases need further work.
Facts used in scoring: 4
Classification and evidence
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: The technical information in this release was reviewed and verified by Mr. Lewis Harvey and Mr. James Hogg, Principal Geologists for Addison Mining Services, who qualify as Competent Persons under JORC Code 2012 and Qualified Persons under AIM rules.
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.”
QA/QC Disclosedpositive · Story-specific tag
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: The release includes a detailed JORC Table 1 section outlining sampling techniques, sample preparation, quality of assay data, and quality control procedures including the insertion of CRMs, blanks, and duplicates.
Evidence · text
“GWM routinely insert, CRMS, blanks and duplicates into the sample stream. QC inserted at a rate of approximately 1:10. The quality and nature of assay data and laboratory tests are acceptable for the exploration work for this deposit.”
JORC Compliantpositive · Story-specific tag
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: The technical information is based on and fairly represents information and data reviewed by Competent Persons as defined in the JORC Code 2012 edition.
Evidence · text
“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”
Apparent Width Onlynegative · Story-specific tag
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Why it applies: The reported skarn intervals are given as continuous lengths in feet and meters without stating true width or drill orientation relative to the mineralisation.
Evidence · text
“Drilling intersected 100 ft (31 m) of continuous skarn from 50 ft (15 m) to 150 ft (46 m) depth”
No Assay Resultsnegative · Story-specific tag
No canonical definition is currently available.
Why it applies: The announcement explicitly states that assay results are pending and no exploration results are being reported herein, only visual observations.
Evidence · text
“Analysis is pending and no exploration results are being reported herein.”
Extracted facts
Stored fact records: 1. Some facts used in scoring do not have a stored record.
Drill Results (1)
Fact 1Defender · tungstenNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Defender
- Commodity
- tungsten
- Region
- usa_nv
- Reported Region
- usa_nv
- Ticker
- GWMO
Geometry
- Hole Depth
- 183 m
Classification
- Program
- exploration
- Sample Type
- drill
Location
- EPSG
- 26911
QA/QC
- QA/QC Disclosed
- 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: The completion of the drilling campaign is a significant milestone for the project, with encouraging visual observations of scheelite, indicating potential for a maiden MRE. However, the lack of assay results means the full impact is yet to be determined.
Positive factors
- Drilling campaign successfully completed, meeting objectives.
- Visual observations confirm scheelite-bearing skarn in multiple wide intervals, validating geological model.
- Samples dispatched to an accredited laboratory for assay, with results expected soon.
- Drilling will inform a maiden Mineral Resource Estimate.
Negative factors
- No assay results are reported in this announcement, limiting immediate quantitative assessment.
- Drill sample recovery data has not been assessed to date, and potential biases need further work.
Evidence · text
“Programme comprised approximately 8,500 ft (2,590 m) of drilling across 23 holes to depths ranging between 200 ft (61 m) and 600 ft (183 m), targeting skarn hosted tungsten mineralisation.”
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.