Tungsten Mining clears processing hurdle as Watershed project nears FID
Original announcement by stockhead on
- Company
- Tungsten Mining
- Ticker
- TGN
- Exchange
- Unavailable
- Region
- Queensland
- Primary commodity
- Tungsten
- Secondary commodities
- Sulfur
- Document categories
- Metallurgy
- Extracted
- 2026-09-16 05:03:46 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
Tungsten Mining has successfully produced saleable tungsten concentrate from its Watershed project in Queensland, with grades reaching up to 65.9% WO3. The results, which include recoveries of 60-70% and low sulphur levels, support the company's upcoming Definitive Feasibility Study and targeted late-2026 Final Investment Decision.
Reasoning: The metallurgical test work successfully produced high-grade tungsten concentrate, a key milestone for the Watershed project's DFS and upcoming FID.
Positive factors
- Successful production of saleable concentrate
- High concentrate grades achieved (up to 65.9% WO3)
- Low sulphur content in concentrate
- Advancement towards DFS and FID
Negative factors
- Recovery rates (60-70%) are moderate
Facts used in scoring: 4
Classification and evidence
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: The company plans to use flotation and gravity separation.
Evidence · text
“plans to produce concentrate using conventional ore sorting, gravity separation and flotation”
Gravity Routeneutral
Gravity separation forms a material part of the flowsheet.
Why it applies: the document describes a gravity route ("gravity")
Multi-Domain Testedpositive
Variability across ore domains (oxide, transition, fresh) has been addressed.
Why it applies: 2 distinct composites were tested
Extracted facts
Stored fact records: 4. Some facts used in scoring do not have a stored record.
Metallurgical Results (4)
flotationWatershed · tungstenRecovery: 65 %View all detailsHide details
Identity
- Project
- Watershed
- Commodity
- tungsten
- Region
- australia_qld
- Reported Region
- Queensland
- Ticker
- TGN
Test Work
- Program Status
- detailed
- Test Type
- flotation
- Processing Route
- conventional ore sorting, gravity separation and flotation
- Sample
- marketing sample 1
Recovery
- Recovery
- 65 %
- Recovery Basis
- actual_test
- Conc. Grade
- 53.8
- Conc. Grade Unit
- % WO3
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-16T00:00:00.000Z
Reasoning: Achieved a marketing-grade concentrate of 53.8% WO3.
Positive factors
- Saleable concentrate grade achieved
Evidence · text
“delivered two marketing samples grading 53.8% and 65.9% tungsten trioxide, or WO3”
Tags used in scoring
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: processing_route matches the flotation signal
Gravity Routeneutral
Gravity separation forms a material part of the flowsheet.
Why it applies: processing_route matches the gravity signal
flotationWatershed · tungstenRecovery: 65 %View all detailsHide details
Identity
- Project
- Watershed
- Commodity
- tungsten
- Region
- australia_qld
- Reported Region
- Queensland
- Ticker
- TGN
Test Work
- Program Status
- detailed
- Test Type
- flotation
- Processing Route
- conventional ore sorting, gravity separation and flotation
- Sample
- marketing sample 2
Recovery
- Recovery
- 65 %
- Recovery Basis
- actual_test
- Conc. Grade
- 65.9
- Conc. Grade Unit
- % WO3
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-16T00:00:00.000Z
Reasoning: Achieved a high-grade concentrate of 65.9% WO3.
Positive factors
- High concentrate grade achieved
Evidence · text
“grading 53.8% and 65.9% tungsten trioxide, or WO3”
Tags used in scoring
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: processing_route matches the flotation signal
Gravity Routeneutral
Gravity separation forms a material part of the flowsheet.
Why it applies: processing_route matches the gravity signal
flotationWatershed · tungstenRecovery: 65 %View all detailsHide details
Identity
- Project
- Watershed
- Commodity
- tungsten
- Region
- australia_qld
- Reported Region
- Queensland
- Ticker
- TGN
Test Work
- Program Status
- detailed
- Test Type
- flotation
- Processing Route
- conventional ore sorting, gravity separation and flotation
- Sample
- Watershed metallurgical test work
Recovery
- Recovery
- 65 %
- Recovery Basis
- actual_test
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-16T00:00:00.000Z
Reasoning: Reported recovery range is 60-70%.
Negative factors
- Recovery in the 60-70% range is moderate
Evidence · text
“test work achieved recoveries of 60-70%”
Tags used in scoring
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: processing_route matches the flotation signal
Gravity Routeneutral
Gravity separation forms a material part of the flowsheet.
Why it applies: processing_route matches the gravity signal
flotationWatershed · sulfurView all detailsHide details
Identity
- Project
- Watershed
- Commodity
- sulfur
- Region
- australia_qld
- Reported Region
- Queensland
- Ticker
- TGN
Test Work
- Program Status
- detailed
- Test Type
- flotation
- Processing Route
- conventional ore sorting, gravity separation and flotation
- Sample
- Watershed metallurgical test work
Recovery
- Conc. Grade
- 0.02
- Conc. Grade Unit
- %
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-16T00:00:00.000Z
Reasoning: Concentrate contains very low sulphur (0.02%).
Positive factors
- Very low sulphur content in concentrate
Evidence · text
“both products containing just 0.02% sulphur”
Tags used in scoring
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: processing_route matches the flotation signal
Gravity Routeneutral
Gravity separation forms a material part of the flowsheet.
Why it applies: processing_route matches the gravity signal
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.