Maiden Lithium Resource of 3.2Mt for the Mina do Barroso Lithium
Original announcement by research on
- Company
- Savannah Resources plc
- Ticker
- SAV
- Exchange
- LSE
- Region
- northern Portugal
- Primary commodity
- Lithium
- Secondary commodities
- Iron ore, Tantalum
- Document categories
- Resource update, Metallurgy, Drill results
- Extracted
- 2026-11-04 11:43:39 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
Savannah announced a maiden Inferred Mineral Resource for the Reservatorio deposit at Mina do Barroso in northern Portugal: 3.2Mt at 1.0% Li2O, containing 32,000t of Li2O. The release also says the deposit remains open and that further drilling could expand the resource, while metallurgical test work indicates conventional processing can produce a high-grade spodumene concentrate.
Reasoning: This is primarily a maiden resource announcement for Reservatorio, with supporting metallurgy and drilling context. The result is positive because it establishes a new Inferred lithium resource and describes conventional spodumene processing, but confidence is limited by the all-Inferred classification and early-stage drilling density.
Positive factors
- Maiden Inferred Mineral Resource of 3.2Mt at 1.0% Li2O is a substantive new resource statement
- JORC 2012 compliance and named Competent Persons support credibility
- Metallurgical test work indicates conventional processing can produce a high-grade spodumene concentrate
Negative factors
- Resource is entirely Inferred due to broad drill spacing
- Cut-off grade is disclosed but no prior resource exists for direct growth comparison
- The release notes additional drilling and future work remain ongoing, so the estimate is early-stage
Rubric flags
- metallurgy historical restatement — The flotation and HLS results are previously reported; keep them flagged historical so novelty is not overstated.
- resource historical context — The resource is maiden and all-Inferred, so confidence is limited despite the material tonnage.
Facts used in scoring: 12
Classification and evidence
Measured?neutral · Story-specific tag
No canonical definition is currently available.
Why it applies: No measured category is reported; the estimate is explicitly Inferred only.
Evidence · text
“The Mineral Resource has been classified as Inferred Mineral Resource in accordance with the JORC Code, 2012 Edition.”
Maiden Resourceneutral
First formal MRE for the project — establishes baseline but typically exploration-stage with high Inferred component. No prior estimate exists, so every change band is not applicable.
Why it applies: The announcement explicitly describes a maiden Mineral Resource Estimate.
Evidence · text
“maiden Mineral Resource Estimate of 3.2 million tonnes”
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: The release states the entire resource is classified as Inferred.
Evidence · text
“The Mineral Resource has been classified as Inferred Mineral Resource in accordance with the JORC Code, 2012 Edition.”
Cut Off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: The resource is reported at a stated 0.5% Li2O cut-off.
Evidence · text
“above 0.5% Li2O cut-off grade”
QP/CP Signedpositive
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: A named Competent Person signs off on the mineral resource and exploration information.
Evidence · text
“The information in this report that relates to Mineral Resources is based on information compiled by Mr Paul Payne, a Competent Person”
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: The estimate is reported in accordance with the JORC Code, 2012 Edition.
Evidence · text
“in accordance with the JORC Code, 2012 Edition”
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 standards, blanks and field duplicates were used.
Evidence · text
“QAQC protocols were in place for the drilling programs and included the used of standards, blanks and field duplicates.”
Apparent Width Onlynegative
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Why it applies: The release states drill results are reported as down hole intercepts and no true width is given for the reported drilling context.
Evidence · text
“Exploration results are reported as down hole intercepts”
Nearology Playneutral
Value premise rests on proximity to a known deposit rather than own results.
Why it applies: The release leans on project scale and multiple pegmatites within the mining lease as part of the investment case.
Evidence · text
“multiple pegmatites that sit within the major lithium mineralised corridor”
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: the document describes a flotation route ("flotation")
Single Domain Onlynegative
Testing limited to one composite or domain — representativeness not established.
Why it applies: only one composite was tested
Extracted facts
Stored fact records: 12. Some facts used in scoring do not have a stored record.
Drill Results (2)
Fact 1Mina do Barroso · lithiumGrade: 1.95Grade Unit: %View all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- lithium
- Region
- northern portugal
- Reported Region
- northern portugal
Geometry
- Grade
- 1.95
- Grade Unit
- %
Classification
- Program
- exploration
- Sample Type
- surface
Location
- Location
- Mina do Barroso
- Loc. Source
- document
QA/QC
- Laboratory
- Nagrom Metallurgical
- QA/QC Disclosed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Deleterious
- Deleterious Flag
- No
Metal Equivalent
- Assumptions Disclosed
- No
Compositing
- Cutoff Grade
- 0.5
- Cutoff Unit
- % Li2O
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Reasoning: The document states a lithium head grade for a combined sample, but not a drill intercept. It is useful context rather than a standalone drilling result.
Positive factors
- The release discloses a high lithium head grade in the metallurgical sample
- QA/QC and certified laboratory signals are stated in the broader release
Negative factors
- This is a composite metallurgical sample rather than a drill intercept
- No hole ID or drill interval is provided
- Historical testwork rather than current assay results
Evidence · text
“Single analysis of the combined sample confirmed a high Li2O head grade (~1.95% Li2O) and low Fe2O3 head grade (~0.9%)”
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
Fact 2Mina do Barroso · iron_oreGrade: 0.9Grade Unit: %View all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- iron_ore
- Region
- northern portugal
- Reported Region
- northern portugal
Geometry
- Grade
- 0.9
- Grade Unit
- %
Classification
- Program
- exploration
- Sample Type
- surface
Location
- Location
- Mina do Barroso
- Loc. Source
- document
QA/QC
- Laboratory
- Nagrom Metallurgical
- QA/QC Disclosed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Deleterious
- Deleterious Flag
- No
Metal Equivalent
- Assumptions Disclosed
- No
Compositing
- Cutoff Grade
- 0.5
- Cutoff Unit
- % Li2O
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Reasoning: This is a compositional detail from metallurgical sampling, not a drill intercept.
Positive factors
- Low iron in the combined sample is explicitly stated
Negative factors
- Surface/composite sample context rather than drill intercepts
- Not a current drilling result
Evidence · text
“Single analysis of the combined sample confirmed a high Li2O head grade (~1.95% Li2O) and low Fe2O3 head grade (~0.9%)”
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
Resource Estimates (8)
inferredMina do Barroso · lithiumTonnes: 3200000Grade: 1Grade Unit: %Contained Metal: 32000Contained Unit: tView all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- lithium
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Paul Payne
- Resource group id
- resource:f5722f0d6f88e7a00279
- Deposit or zone
- Reservatorio Deposit
Resource Data
- Category
- inferred
- Tonnes
- 3200000
- Grade
- 1
- Grade Unit
- %
- Contained Metal
- 32000
- Contained Unit
- t
- Cutoff Grade
- 0.5
- Cutoff Unit
- % Li2O
Prior Estimate
- Resource Date
- 2017-12-18
Lab
- Laboratory
- ALS Laboratories
Location
- Loc. Confidence
- inferred
Review
- Needs Review
- No
- Historical
- No
Reasoning: A maiden 3.2Mt Inferred resource is material and clearly new, but the all-Inferred classification lowers confidence.
Positive factors
- Maiden resource establishes a new baseline for the project
- Contained lithium metal is explicitly disclosed
- JORC 2012 and Competent Person sign-off are stated
Negative factors
- Entire resource is Inferred, limiting engineering confidence
- No prior estimate is available for comparison
Evidence · text
“Initial Inferred Mineral Resource of 3.2Mt at 1.0% Li₂O containing 32,000t of Li₂O”
Tags used in scoring
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: category is "inferred"
Cut Off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: cutoff_grade is stated
QP/CP Signedpositive
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: qp_signed is true
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: reporting_standards includes jorc
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 8.9 years before this release
inferredMina do Barroso · lithiumTonnes: 250000Grade: 1.01Grade Unit: %View all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- lithium
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Paul Payne
- Resource group id
- resource:c6e4b568ff3700dd8e07
- Deposit or zone
- Reservatorio Deposit
Resource Data
- Category
- inferred
- Tonnes
- 250000
- Grade
- 1.01
- Grade Unit
- %
- Cutoff Grade
- 0.5
- Cutoff Unit
- % Li2O
Prior Estimate
- Resource Date
- 2017-12-18
Lab
- Laboratory
- ALS Laboratories
Location
- Loc. Confidence
- inferred
Review
- Needs Review
- No
- Historical
- No
Reasoning: This is a disclosed subtotal supporting the resource table, but it is less material than the headline total and still part of the all-Inferred estimate.
Positive factors
- Printed total row provides supporting grade detail for the weathered portion of the resource table
Negative factors
- Row is a table subtotal rather than the headline estimate
- Contained metal for this subtotal is not separately stated
- All resource material remains Inferred
Evidence · table
“Total 250,000 1.01 19 1.3 2,940,000 1.00 17 1.4 3,190,000 1.00 17 1.4 32,000”
Context: Table 2, Total row, Weathered section, Li2O column
Tags used in scoring
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: category is "inferred"
Cut Off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: cutoff_grade is stated
QP/CP Signedpositive
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: qp_signed is true
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: reporting_standards includes jorc
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 8.9 years before this release
inferredMina do Barroso · lithiumTonnes: 2940000Grade: 1Grade Unit: %View all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- lithium
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Paul Payne
- Resource group id
- resource:7f11b3b82cd481f3006f
- Deposit or zone
- Reservatorio Deposit
Resource Data
- Category
- inferred
- Tonnes
- 2940000
- Grade
- 1
- Grade Unit
- %
- Cutoff Grade
- 0.5
- Cutoff Unit
- % Li2O
Prior Estimate
- Resource Date
- 2017-12-18
Lab
- Laboratory
- ALS Laboratories
Location
- Loc. Confidence
- inferred
Review
- Needs Review
- No
- Historical
- No
Reasoning: The fresh-material subtotal is informative for the resource mix, but the headline value is the combined 3.19Mt total.
Positive factors
- Fresh material dominates the resource table and is explicitly quantified
Negative factors
- This is a subtotal within the estimate table, not the final headline statement
- Contained metal for the subtotal is not separately stated
Evidence · table
“Total 250,000 1.01 19 1.3 2,940,000 1.00 17 1.4 3,190,000 1.00 17 1.4 32,000”
Context: Table 2, Total row, Fresh section, Li2O column
Tags used in scoring
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: category is "inferred"
Cut Off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: cutoff_grade is stated
QP/CP Signedpositive
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: qp_signed is true
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: reporting_standards includes jorc
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 8.9 years before this release
inferredMina do Barroso · lithiumTonnes: 3190000Grade: 1Grade Unit: %Contained Metal: 32000Contained Unit: tView all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- lithium
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Paul Payne
- Resource group id
- resource:9b672730a2a6b31ff39e
- Deposit or zone
- Reservatorio Deposit
Resource Data
- Category
- inferred
- Tonnes
- 3190000
- Grade
- 1
- Grade Unit
- %
- Contained Metal
- 32000
- Contained Unit
- t
- Cutoff Grade
- 0.5
- Cutoff Unit
- % Li2O
Prior Estimate
- Resource Date
- 2017-12-18
Lab
- Laboratory
- ALS Laboratories
Location
- Loc. Confidence
- inferred
Review
- Needs Review
- No
- Historical
- No
Reasoning: The total row is the core result of the release and is highly material, though confidence is limited by the Inferred-only classification.
Positive factors
- This is the full deposit total from the resource table
- Contained Li2O is explicitly stated
- Cut-off grade and reporting standard are disclosed
Negative factors
- Entire resource is classified as Inferred
- No prior resource exists for comparison
Evidence · table
“Total 250,000 1.01 19 1.3 2,940,000 1.00 17 1.4 3,190,000 1.00 17 1.4 32,000”
Context: Table 2, Total row, Total column
Tags used in scoring
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: category is "inferred"
Cut Off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: cutoff_grade is stated
QP/CP Signedpositive
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: qp_signed is true
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: reporting_standards includes jorc
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 8.9 years before this release
inferredMina do Barroso · iron_oreTonnes: 3200000Grade: 1.4Grade Unit: %View all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- iron_ore
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Paul Payne
- Resource group id
- resource:f5722f0d6f88e7a00279
- Deposit or zone
- Reservatorio Deposit
Resource Data
- Category
- inferred
- Tonnes
- 3200000
- Grade
- 1.4
- Grade Unit
- %
- Cutoff Grade
- 0.5
- Cutoff Unit
- % Li2O
Prior Estimate
- Resource Date
- 2017-12-18
Lab
- Laboratory
- ALS Laboratories
Location
- Loc. Confidence
- inferred
Review
- Needs Review
- No
- Historical
- No
Reasoning: Fe2O3 is disclosed as a byproduct/secondary grade for the resource, but it is not the main investment thesis of the release.
Positive factors
- Iron grade is explicitly reported alongside the lithium resource
Negative factors
- Iron is a secondary grade in the resource summary and not the focus of the announcement
Evidence · text
“Tonnes Li2O Fe2O3 Li2O Mt % % Tonnes 3.2 1.00 1.4 32,000”
Context: Table 1 header and summary row
Tags used in scoring
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: category is "inferred"
Cut Off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: cutoff_grade is stated
QP/CP Signedpositive
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: qp_signed is true
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: reporting_standards includes jorc
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 8.9 years before this release
inferredMina do Barroso · iron_oreTonnes: 250000Grade: 1.3Grade Unit: %View all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- iron_ore
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Paul Payne
- Resource group id
- resource:c6e4b568ff3700dd8e07
- Deposit or zone
- Reservatorio Deposit
Resource Data
- Category
- inferred
- Tonnes
- 250000
- Grade
- 1.3
- Grade Unit
- %
- Cutoff Grade
- 0.5
- Cutoff Unit
- % Li2O
Prior Estimate
- Resource Date
- 2017-12-18
Lab
- Laboratory
- ALS Laboratories
Location
- Loc. Confidence
- inferred
Review
- Needs Review
- No
- Historical
- No
Reasoning: This is a secondary iron grade for a resource subtotal and carries limited material importance on its own.
Positive factors
- Weathered-domain Fe2O3 grade is explicitly stated
Negative factors
- Secondary grade only, with limited standalone significance
Evidence · table
“250,000 1.01 19 1.3”
Context: Table 2, Total row, Weathered section, Fe2O3 column
Tags used in scoring
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: category is "inferred"
Cut Off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: cutoff_grade is stated
QP/CP Signedpositive
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: qp_signed is true
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: reporting_standards includes jorc
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 8.9 years before this release
inferredMina do Barroso · iron_oreTonnes: 2940000Grade: 1.4Grade Unit: %View all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- iron_ore
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Paul Payne
- Resource group id
- resource:7f11b3b82cd481f3006f
- Deposit or zone
- Reservatorio Deposit
Resource Data
- Category
- inferred
- Tonnes
- 2940000
- Grade
- 1.4
- Grade Unit
- %
- Cutoff Grade
- 0.5
- Cutoff Unit
- % Li2O
Prior Estimate
- Resource Date
- 2017-12-18
Lab
- Laboratory
- ALS Laboratories
Location
- Loc. Confidence
- inferred
Review
- Needs Review
- No
- Historical
- No
Reasoning: This is a secondary iron grade for a resource subtotal and carries limited material importance on its own.
Positive factors
- Fresh-domain Fe2O3 grade is explicitly stated
Negative factors
- Secondary grade only, with limited standalone significance
Evidence · table
“2,940,000 1.00 17 1.4”
Context: Table 2, Total row, Fresh section, Fe2O3 column
Tags used in scoring
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: category is "inferred"
Cut Off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: cutoff_grade is stated
QP/CP Signedpositive
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: qp_signed is true
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: reporting_standards includes jorc
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 8.9 years before this release
Fact 8SevilleView all detailsHide details
Identity
- Project
- Seville
- Region
- spain
- Reported Region
- Spain
- Ticker
- SAV
Resource scope
- Estimate type
- resource
- Resource group id
- resource:a1404c73c3bb6d04650c
Review
- Needs Review
- No
- Historical
- No
Reasoning: Explicit resource disclosure recovered from source prose.
Evidence · text
“the Mineral Resource has been reported at a 0.5% Li2O lower cut-off grade to reflect assumed”
Tags used in scoring
Cut Off Lowerednegative
Cut-off grade reduced beyond the suspicious bound vs prior estimate — tonnage growth may be artificial inflation.
Why it applies: the Mineral Resource has been reported at a 0.5% Li2O lower cut-off grade to reflect assumed
Evidence · text
“the Mineral Resource has been reported at a 0.5% Li2O lower cut-off grade to reflect assumed”
Context: Seville, Spain
Cut Off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Metallurgical Results (2)
flotationMina do Barroso · lithiumRecovery: 83.7 %Head Grade: 1.95Head Grade Unit: % Li2OHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- lithium
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Test Work
- Program Status
- preliminary
- Test Type
- flotation
- Processing Route
- simple one stage float
- Sample
- combined sample, preliminary ore characterisation metallurgical test work
Recovery
- Recovery
- 83.7 %
- Head Grade
- 1.95
- Head Grade Unit
- % Li2O
- Conc. Grade
- 5.9
- Conc. Grade Unit
- % Li2O
Lab
- Laboratory
- Nagrom Metallurgical
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2017-06-26T00:00:00.000Z
Reasoning: The testwork is encouraging but historical. It shows that a conventional one-stage flotation route can make a high-grade spodumene concentrate, but the result is not new to this release.
Positive factors
- Reported recovery is solid for an early-stage flotation test
- Concentrate grade is high and the product is described as very pure spodumene
Negative factors
- This is previously reported metallurgical work, not new test data
- Single simple flotation stage without optimisation limits confidence
- No recovery assumptions or circuit economics are disclosed
Evidence · text
“Flotation results utilising a simple one stage float without any optimisation achieved ~83.7% Li2O recovery at ~5.9% Li2O”
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
High Recoverypositive
Recovery at or above the exceptional band for the commodity and processing route.
Why it applies: 83.7% is at or above the exceptional band (80%)
heavy liquid separationMina do Barroso · lithiumHead Grade: 1.95Head Grade Unit: % Li2OHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- lithium
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Test Work
- Program Status
- preliminary
- Test Type
- heavy liquid separation
- Processing Route
- heavy liquid separation
- Sample
- combined sample, preliminary ore characterisation metallurgical test work
Recovery
- Head Grade
- 1.95
- Head Grade Unit
- % Li2O
- Conc. Grade
- 8
- Conc. Grade Unit
- % Li2O
Lab
- Laboratory
- Nagrom Metallurgical
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2017-06-26T00:00:00.000Z
Reasoning: This is a supportive historical metallurgy result showing product quality, but without a recovery figure it is less informative than the flotation data.
Positive factors
- HLS indicates a very high-grade product can be produced from the mineralisation
Negative factors
- No recovery percentage is reported for the HLS result
- The result is historical and previously announced
Evidence · text
“Heavy Liquid Separation (“HLS”) shows a very pure (~8%) Li2O product can be produced”
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.