Completion of Mutamba Mineral Sands Project Scoping Study
Original announcement by research on
- Company
- Savannah Resources Plc
- Ticker
- SAV
- Exchange
- LSE
- Region
- Mozambique
- Primary commodity
- Mineral sands
- Secondary commodities
- Ilmenite, Rutile, Zircon, Titanium
- Document categories
- Other, Resource update, Agreement transaction
- Extracted
- 2026-10-20 00:08:54 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
Savannah announced completion of the Mutamba scoping study, which outlines a 30-year mineral sands project in Mozambique with strong modelled economics. The release also includes resource-based mining inventory assumptions, production forecasts, capex, opex, and the consortium interest changes linked to delivering the study.
Reasoning: This is primarily a scoping study announcement for the Mutamba Mineral Sands Project, with an associated resource-based mine plan and consortium update. The study outlines robust but preliminary project economics and development assumptions rather than finalized reserves or production.
Positive factors
- completion of scoping study for Mutamba
- modelled pre-tax NPV of US$154M to US$335M and IRR of 19% to 27%
- 30-year mine life with estimated 451Mt mining inventory
- projected production of 456,000tpa ilmenite and 118,000tpa non-magnetic concentrate
Negative factors
- scoping study is low-level and insufficient to support Ore Reserves
- financial outputs are modelled scenarios rather than completed operating results
- resource figures are presented as mining inventory based on Indicated and Inferred Resources
Rubric flags
- economic_study classification — This release is primarily a scoping study / economic evaluation, but it also restates historical JORC resource rows used in the mine plan. Keep economic_study as primary and treat resource_update as secondary/background.
- resource extraction completeness — The document's resource table reports THM percentages by deposit and category; extraction above treats these as resource rows. The ilmenite/rutile/zircon percentages in the table are not added because they are grade fractions within the same table and the release presents them as product-mix style disclosures rather than separately labeled resource commodities.
Facts used in scoring: 6
Classification and evidence
PFS-Supportingneutral
Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.
Why it applies: The scoping study says the project will advance to PFS and then DFS, indicating this estimate supports further study work rather than a final investment decision.
Evidence · text
“we are now looking to commission a group to undertake this study once a tender process is complete.”
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: The resource table is described as JORC 2012 reportable Mineral Resources.
Evidence · text
“JORC 2012 reportable Mineral Resources have been defined at Jangamo, Dongane and Ravene”
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: The release names Colin Rothnie as the Competent Person responsible for the resource estimation.
Evidence · text
“The information in this document that relates to the resource estimation is based upon information compiled by Mr Colin Rothnie”
Extracted facts
Stored fact records: 6. Some facts used in scoring do not have a stored record.
Resource Estimates (6)
indicatedMutamba · mineral sandsTonnes: 1780000000Grade: 3.8Grade Unit: % THMHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Mutamba
- Commodity
- mineral sands
- Region
- mozambique
- Reported Region
- Mozambique
- Ticker
- SAV
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Colin Rothnie
- Resource group id
- resource:30f1f1d7da060fd187ae
- Deposit or zone
- Jangamo
- Resource basis
- gross
Resource Data
- Category
- indicated
- Tonnes
- 1780000000
- Grade
- 3.8
- Grade Unit
- % THM
Prior Estimate
- Resource Date
- 2017-05-30
Lab
- Laboratory
- TZMI
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2017-03-27T00:00:00.000Z
Reasoning: This is a historical indicated resource row restated to support the scoping study, not a new estimate announced in this document.
Positive factors
- JORC 2012 resource disclosed
- Competent Person named
- resource supports the scoping study mine plan
Negative factors
- historical resource reference restated from a prior announcement
- cut-off grade not disclosed
Tags used in scoring
Indicated Resourcepositive
Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.
Why it applies: category is "indicated"
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was 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
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
PFS-Supportingneutral
Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 9.4 years before this release
inferredMutamba · mineral sandsTonnes: 200000000Grade: 3.5Grade Unit: % THMHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Mutamba
- Commodity
- mineral sands
- Region
- mozambique
- Reported Region
- Mozambique
- Ticker
- SAV
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Colin Rothnie
- Resource group id
- resource:1c37d9ac53bf77b513ea
- Deposit or zone
- Jangamo
- Resource basis
- gross
Resource Data
- Category
- inferred
- Tonnes
- 200000000
- Grade
- 3.5
- Grade Unit
- % THM
Prior Estimate
- Resource Date
- 2017-05-30
Lab
- Laboratory
- TZMI
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2017-03-27T00:00:00.000Z
Reasoning: This is a historical inferred resource row included in the resource table to underpin the study.
Positive factors
- JORC 2012 resource disclosed
- Competent Person named
- resource supports the scoping study mine plan
Negative factors
- historical resource reference restated from a prior announcement
- inferred category lowers confidence
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 Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was 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
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
PFS-Supportingneutral
Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 9.4 years before this release
inferredMutamba · mineral sandsTonnes: 65000000Grade: 4.2Grade Unit: % THMHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Mutamba
- Commodity
- mineral sands
- Region
- mozambique
- Reported Region
- Mozambique
- Ticker
- SAV
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Colin Rothnie
- Resource group id
- resource:12f8092d19f018e1bdd8
- Deposit or zone
- Jangamo
- Resource basis
- gross
Resource Data
- Category
- inferred
- Tonnes
- 65000000
- Grade
- 4.2
- Grade Unit
- % THM
Prior Estimate
- Resource Date
- 2017-05-30
Lab
- Laboratory
- TZMI
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2017-03-27T00:00:00.000Z
Reasoning: This is a historical inferred resource row restated in the study background.
Positive factors
- JORC 2012 resource disclosed
- Competent Person named
Negative factors
- historical resource reference restated from a prior announcement
- inferred category lowers confidence
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 Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was 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
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
PFS-Supportingneutral
Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 9.4 years before this release
inferredMutamba · mineral sandsTonnes: 1400000000Grade: 3.8Grade Unit: % THMHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Mutamba
- Commodity
- mineral sands
- Region
- mozambique
- Reported Region
- Mozambique
- Ticker
- SAV
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Colin Rothnie
- Resource group id
- resource:6a2ade1125285445d225
- Deposit or zone
- Dongane
- Resource basis
- gross
Resource Data
- Category
- inferred
- Tonnes
- 1400000000
- Grade
- 3.8
- Grade Unit
- % THM
Prior Estimate
- Resource Date
- 2017-05-30
Lab
- Laboratory
- TZMI
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2017-03-27T00:00:00.000Z
Reasoning: This is a historical inferred resource row included in the project resource table.
Positive factors
- JORC 2012 resource disclosed
- Competent Person named
Negative factors
- historical resource reference restated from a prior announcement
- inferred category lowers confidence
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 Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was 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
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
PFS-Supportingneutral
Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 9.4 years before this release
inferredMutamba · mineral sandsTonnes: 900000000Grade: 4.1Grade Unit: % THMHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Mutamba
- Commodity
- mineral sands
- Region
- mozambique
- Reported Region
- Mozambique
- Ticker
- SAV
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Colin Rothnie
- Resource group id
- resource:ad35db1ddfcc74fa9fa1
- Deposit or zone
- Ravene
- Resource basis
- gross
Resource Data
- Category
- inferred
- Tonnes
- 900000000
- Grade
- 4.1
- Grade Unit
- % THM
Prior Estimate
- Resource Date
- 2017-05-30
Lab
- Laboratory
- TZMI
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2017-03-27T00:00:00.000Z
Reasoning: This is a historical inferred resource row included in the table.
Positive factors
- JORC 2012 resource disclosed
- Competent Person named
Negative factors
- historical resource reference restated from a prior announcement
- inferred category lowers confidence
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 Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was 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
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
PFS-Supportingneutral
Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 9.4 years before this release
inferredMutamba · mineral sandsTonnes: 4400000000Grade: 3.9Grade Unit: % THMHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Mutamba
- Commodity
- mineral sands
- Region
- mozambique
- Reported Region
- Mozambique
- Ticker
- SAV
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Colin Rothnie
- Resource group id
- resource:77a5a902f64b4e38dc25
- Deposit or zone
- Total
- Resource basis
- gross
Resource Data
- Category
- inferred
- Tonnes
- 4400000000
- Grade
- 3.9
- Grade Unit
- % THM
Prior Estimate
- Resource Date
- 2017-05-30
Lab
- Laboratory
- TZMI
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2017-03-27T00:00:00.000Z
Reasoning: This total resource line is a historical restatement used to frame the scoping study's mining inventory.
Positive factors
- JORC 2012 resource disclosed
- Competent Person named
- total resource figure printed in the table
Negative factors
- historical resource reference restated from a prior announcement
- combined inferred-only resource lowers confidence
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 Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was 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
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
PFS-Supportingneutral
Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 9.4 years before this release
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.