Great Western Mining Corporation plc Announces Completion of Drilling: Defender Tungsten Project
Original announcement by accesswire on
- Company
- Great Western Mining Corporation plc
- Ticker
- GWMO
- Exchange
- Unavailable
- Region
- Nevada, USA
- Primary commodity
- Tungsten
- Secondary commodities
- Copper, Gold, Silver
- Document categories
- Drill results, Other
- Extracted
- 2026-09-23 07:17:15 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Great Western Mining Corporation plc has completed its reverse circulation drilling campaign at the Defender Tungsten Project in Nevada, USA. The program, comprising 23 holes totaling 2,590 meters, visually confirmed multiple wide intervals of scheelite-bearing skarn mineralization. Samples have been sent to an accredited laboratory for assay, with results expected in Q4 2026, which will be used to inform a maiden Mineral Resource Estimate.
Reasoning: The announcement reports the completion of a drilling campaign at the Defender Tungsten Project, with positive visual observations of scheelite mineralization. While no assay results are yet available, the completion of drilling and the visual confirmation of mineralization are positive steps towards a maiden MRE. The detailed JORC Table 1 disclosure provides transparency on the drilling and sampling procedures, although some QA/QC aspects are still pending.
Positive factors
- Drilling campaign completed on schedule
- Visual observations confirm scheelite-bearing skarn in multiple wide intervals
- Results will inform a maiden MRE
- JORC 2012 compliant QA/QC procedures are in place
Negative factors
- No assay results reported, only visual observations
- Recovery data not assessed to date, potential for bias not checked
- Database validation and verification pending
Facts used in scoring: 4
Classification and evidence
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 extensive JORC Table 1 disclosure detailing QA/QC procedures, including the use of CRMs, blanks, and duplicates, and analysis by an accredited laboratory.
Evidence · table
“GWM routinely insert, CRMS, blanks and duplicates into the sample stream. QC inserted at a rate of approximately 1:10.”
Context: Nature of quality control procedures adopted (e.g. standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (i.e. lack of bias) and precision have been established.
No QA/QC Disclosurenegative · Story-specific tag
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: The document states that 'Recovery data has not been assessed to date' and 'No recovery data is available for comparison and scattergram analysis at this time. Further work is required to check against potential biases.'
Evidence · table
“No recovery data is available for comparison and scattergram analysis at this time. Further work is required to check against potential biases.”
Context: Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential loss/gain of fine/coarse material.
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 is based upon and fairly represents information and data presented and reviewed by Mr. Lewis Harvey, MSc., MAIG and Mr. James Hogg MSc, MAIG, Principal Geologists for Addison Mining Services (AMS), 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).”
JORC Compliantpositive · Story-specific tag
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: The technical information is prepared in accordance with the JORC Code 2012 edition, and the Competent Persons are qualified under this code.
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”
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
- Program
- exploration
- Sample Type
- drill
- Group ID
- Defender:15-46
Location
- Location
- Defender Hill
- EPSG
- 26911
- Loc. Source
- document
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: A wide visual intercept of the target mineralization is a positive sign for exploration, indicating the presence of the mineralized system. However, the lack of assay results and true width limits the confidence and materiality.
Positive factors
- Wide interval of continuous skarn
- Visible scheelite observed throughout
Negative factors
- Only visual observation, no quantitative grade
- Apparent width only, no true width stated
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
- Program
- exploration
- Sample Type
- drill
- Group ID
- Defender:0-38
Location
- Location
- Dough God Mine
- EPSG
- 26911
- Loc. Source
- document
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: A wide visual intercept of target mineralization starting from surface is a strong positive for potential open-pit mining. The 'abundant' scheelite suggests good prospectivity, but quantitative assays are needed for full assessment.
Positive factors
- Wide interval of continuous skarn from surface
- Abundant visible scheelite observed
Negative factors
- Only visual observation, no quantitative grade
- Apparent width only, no true width stated
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 (Figure 1).”
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
- Program
- exploration
- Sample Type
- drill
- Group ID
- Defender:35-44
Location
- Location
- Pine Crow Mine
- EPSG
- 26911
- Loc. Source
- document
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: A continuous visual intercept with intense fluorescence is positive, but the narrower width and lack of assays make it less material than the other visual intercepts reported.
Positive factors
- Continuous skarn interval
- Intense scheelite UV fluorescence
Negative factors
- Only visual observation, no quantitative grade
- Narrower interval compared to other targets
- Apparent width only, no true width stated
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.