STM: Bramaderos resource up 72% to 6.2Moz AuEq

Original announcement by asx on

Company
Sunstone Metals Limited
Ticker
STM
Exchange
ASX
Region
Southern Ecuador
Primary commodity
Gold
Secondary commodities
Copper, Silver
Document categories
Resource update
Extracted
2026-10-12 22:25:12 UTC

Analysis by Minestarters Atlas

Atlas analysis published:

Minestarters Atlas analysis

Summary

Sunstone Metals announced a significant update to its Bramaderos Gold-Copper Project Mineral Resource Estimate (MRE), increasing the total resource by 72% to 6.2 Moz AuEq. Notably, the higher-confidence Indicated Resource category saw a 450% increase to 3.3 Moz AuEq, establishing a strong foundation for future open-pit mine development studies. The update incorporates new discoveries at Copete-Porotillo and expansion of existing deposits, with further exploration upside identified, though average grades have declined.

Reasoning: The updated MRE shows a substantial increase in total and indicated gold equivalent ounces, driven by new discoveries and expansion, which provides a robust platform for future studies. However, this growth is accompanied by a notable decline in average resource grade across all categories.

Positive factors

  • Tonnage Growth
  • Category Upgrade
  • Contained Metal Growth
  • QP/CP Signed
  • JORC Compliant
  • Cut-off Disclosed
  • PEA-Supporting

Negative factors

  • Grade Decline
  • Dilutive Growth

Low confidence — this extraction should be reviewed alongside the original source.

Facts used in scoring: 126

Classification and evidence

Tonnage Growthpositive

Significant tonnage increase (≥15%) vs prior estimate with grade maintained or improved.

Why it applies: Total resource tonnage increased by 111% from 220 Mt to 464 Mt.

Evidence · text

“Bramaderos Mineral Resource Estimate (MRE) increased by 2.6Moz AuEq1 to 6.2Moz AuEq1”

Category Upgradepositive

Resource confidence improved — Inferred upgraded to Indicated, or Indicated to Measured. De-risking signal.

Why it applies: Indicated Resource increased by 450% from 40 Mt to 229 Mt.

Evidence · text

“Indicated Resource now totals 229M tonnes for 3.3Moz AuEq1, a 450% increase over the November 2025 MRE”

Contained Metal Growthpositive

True scale improvement — contained metal ounces/tonnes increased vs prior, accounting for both tonnage and grade changes.

Why it applies: Total contained gold equivalent metal increased by 72% from 3.6 Moz AuEq to 6.2 Moz AuEq.

Evidence · text

“Bramaderos Mineral Resource Estimate (MRE) increased by 2.6Moz AuEq1 to 6.2Moz AuEq1”

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: Ms Emily Henry, a Member of the Australasian Institute of Mining and Metallurgy (MAusIMM), is named as the Competent Person responsible for the Mineral Resources.

Evidence · text

“The information in this report that relates to Mineral Resources is based on information compiled by Ms Emily Henry, an employee of Exora Consulting Pty Ltd and a Member of the Australasian Institute of Mining and Metallurgy (MAusIMM).”

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: The MRE is reported in accordance with the JORC Code (2012 Edition).

Evidence · text

“MRE reported at 0.30g/t AuEq cutoff grade within optimised pit shell demonstrating reasonable prospects for eventual economic extraction (RPEEE).”

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: The MRE is reported above a cut-off grade of 0.3 g/t AuEq.

Evidence · text

“The MRE is reported above a cut-off grade of 0.3g/t AuEq1.”

PEA-Supportingneutral

Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: The increased Indicated Resource establishes a strong foundation for future studies for an open pit mine development.

Evidence · text

“establishing a strong foundation for future studies for a Bramaderos open pit mine development”

Maiden Resourceneutral

First formal MRE for the project — establishes baseline but typically exploration-stage with high Inferred component.

Why it applies: The MRE includes maiden MRE for Copete and Porotillo.

Evidence · text

“The addition of Indicated and Inferred material from the new MRE for Copete and Porotillo as a result of new and existing drilling (1.3Moz AuEq1)”

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: The announcement provides an update to the Bramaderos Mineral Resource Estimate.

Evidence · text

“Bramaderos Mineral Resource Estimate (MRE) increased by 2.6Moz AuEq1 to 6.2Moz AuEq1”

Grade Declinenegative

Average grade dropped >5% vs prior estimate — deposit economics worsening. May indicate high-grading in early drilling.

Why it applies: The total AuEq grade declined by 17% from 0.50 g/t to 0.42 g/t, and Indicated AuEq grade declined by 19% from 0.56 g/t to 0.45 g/t.

Evidence · table

“-17%”

Context: 111%

Dilutive Growthnegative

Tonnage increased but contained metal flat or down — likely from lower cut-off grade, not geological expansion.

Why it applies: While tonnage and contained metal increased, the average grade declined significantly across all categories, indicating growth with lower-grade material.

Evidence · table

“-17%”

Context: 111%

Extracted facts

Stored fact records: 126. Some facts used in scoring do not have a stored record.

Resource Estimates (126)

indicatedgoldTonnes: 229000000Grade: 0.32Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:36f86e4b74d82fe70f05
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
229000000
Grade
0.32
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.45
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.32”

Context: 229

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedsilverTonnes: 229000000Grade: 1.23Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:36f86e4b74d82fe70f05
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
229000000
Grade
1.23
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.45
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“1.23”

Context: 229

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedcopperTonnes: 229000000Grade: 530Grade Unit: mlbsContained Metal: 240Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:36f86e4b74d82fe70f05
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
229000000
Grade
530
Grade Unit
mlbs
Contained Metal
240
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.45
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“530”

Context: 229

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredgoldTonnes: 236000000Grade: 0.26Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:50b30c1b31c5b1cd3371
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
236000000
Grade
0.26
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.38
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.26”

Context: 236

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredsilverTonnes: 236000000Grade: 0.52Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:50b30c1b31c5b1cd3371
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
236000000
Grade
0.52
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.38
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.52”

Context: 236

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredcopperTonnes: 236000000Grade: 500Grade Unit: mlbsContained Metal: 230Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:50b30c1b31c5b1cd3371
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
236000000
Grade
500
Grade Unit
mlbs
Contained Metal
230
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.38
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“500”

Context: 236

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

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredgoldTonnes: 464000000Grade: 0.29Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:ba2e6710811fa949838d
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
464000000
Grade
0.29
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.42
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.29”

Context: 464

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredsilverTonnes: 464000000Grade: 0.87Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:ba2e6710811fa949838d
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
464000000
Grade
0.87
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.42
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.87”

Context: 464

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredcopperTonnes: 464000000Grade: 1030Grade Unit: mlbsContained Metal: 470Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:ba2e6710811fa949838d
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
464000000
Grade
1030
Grade Unit
mlbs
Contained Metal
470
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.42
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“1,030”

Context: 464

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

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedgoldTonnes: 138000000Grade: 0.34Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:7daf282b50694f1114cc
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
138000000
Grade
0.34
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.48
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.34”

Context: 138

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedsilverTonnes: 138000000Grade: 1.29Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:7daf282b50694f1114cc
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
138000000
Grade
1.29
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.48
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“1.29”

Context: 138

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedcopperTonnes: 138000000Grade: 336Grade Unit: mlbsContained Metal: 152Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:7daf282b50694f1114cc
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
138000000
Grade
336
Grade Unit
mlbs
Contained Metal
152
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.48
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“336”

Context: 138

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredgoldTonnes: 108000000Grade: 0.28Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:e9ae723ae69bf1656eef
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
108000000
Grade
0.28
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.41
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.28”

Context: 108

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredsilverTonnes: 108000000Grade: 0.66Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:e9ae723ae69bf1656eef
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
108000000
Grade
0.66
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.41
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.66”

Context: 108

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredcopperTonnes: 108000000Grade: 248Grade Unit: mlbsContained Metal: 112Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:e9ae723ae69bf1656eef
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
108000000
Grade
248
Grade Unit
mlbs
Contained Metal
112
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.41
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“248”

Context: 108

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

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedgoldTonnes: 31000000Grade: 0.28Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:9afa4a53e4014f918451
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
31000000
Grade
0.28
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.4
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.28”

Context: 31

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedsilverTonnes: 31000000Grade: 0.92Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:9afa4a53e4014f918451
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
31000000
Grade
0.92
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.4
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.92”

Context: 31

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedcopperTonnes: 31000000Grade: 63Grade Unit: mlbsContained Metal: 29Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:9afa4a53e4014f918451
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
31000000
Grade
63
Grade Unit
mlbs
Contained Metal
29
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.4
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“63”

Context: 31

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredgoldTonnes: 83000000Grade: 0.26Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:46fb6e3fcf3cd7222334
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
83000000
Grade
0.26
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.36
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.26”

Context: 83

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredsilverTonnes: 83000000Grade: 0.28Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:46fb6e3fcf3cd7222334
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
83000000
Grade
0.28
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.36
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.28”

Context: 83

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredcopperTonnes: 83000000Grade: 154Grade Unit: mlbsContained Metal: 70Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:46fb6e3fcf3cd7222334
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
83000000
Grade
154
Grade Unit
mlbs
Contained Metal
70
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.36
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“154”

Context: 83

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

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedgoldTonnes: 169000000Grade: 0.33Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:fb78db49e2c5dd11c0f6
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
169000000
Grade
0.33
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.46
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.33”

Context: 169

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedsilverTonnes: 169000000Grade: 1.22Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:fb78db49e2c5dd11c0f6
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
169000000
Grade
1.22
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.46
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“1.22”

Context: 169

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedcopperTonnes: 169000000Grade: 398Grade Unit: mlbsContained Metal: 181Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:fb78db49e2c5dd11c0f6
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
169000000
Grade
398
Grade Unit
mlbs
Contained Metal
181
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.46
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“398”

Context: 169

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredgoldTonnes: 191000000Grade: 0.27Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:337be1ffebb9a813bf80
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
191000000
Grade
0.27
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.39
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.27”

Context: 191

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredsilverTonnes: 191000000Grade: 0.49Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:337be1ffebb9a813bf80
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
191000000
Grade
0.49
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.39
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.49”

Context: 191

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredcopperTonnes: 191000000Grade: 402Grade Unit: mlbsContained Metal: 182Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:337be1ffebb9a813bf80
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
191000000
Grade
402
Grade Unit
mlbs
Contained Metal
182
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.39
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“402”

Context: 191

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

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedgoldTonnes: 48000000Grade: 0.29Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:95dd423eae5838a8c0cd
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
48000000
Grade
0.29
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.43
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.29”

Context: 48

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedsilverTonnes: 48000000Grade: 1.39Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:95dd423eae5838a8c0cd
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
48000000
Grade
1.39
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.43
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“1.39”

Context: 48

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedcopperTonnes: 48000000Grade: 111Grade Unit: mlbsContained Metal: 51Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:95dd423eae5838a8c0cd
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
48000000
Grade
111
Grade Unit
mlbs
Contained Metal
51
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.43
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“111”

Context: 48

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredgoldTonnes: 34000000Grade: 0.24Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:94e6344e7b38d7ffa337
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
34000000
Grade
0.24
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.37
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.24”

Context: 34

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredsilverTonnes: 34000000Grade: 0.72Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:94e6344e7b38d7ffa337
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
34000000
Grade
0.72
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.37
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.72”

Context: 34

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredcopperTonnes: 34000000Grade: 77Grade Unit: mlbsContained Metal: 35Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:94e6344e7b38d7ffa337
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
34000000
Grade
77
Grade Unit
mlbs
Contained Metal
35
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.37
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“77”

Context: 34

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

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedgoldTonnes: 60000000Grade: 0.29Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:eafb27ca9130f3d8c4f6
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
60000000
Grade
0.29
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.41
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.29”

Context: 60.0

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedsilverTonnes: 60000000Grade: 1.26Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:eafb27ca9130f3d8c4f6
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
60000000
Grade
1.26
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.41
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“1.26”

Context: 60.0

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedcopperTonnes: 60000000Grade: 131Grade Unit: mlbsContained Metal: 60Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:eafb27ca9130f3d8c4f6
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
60000000
Grade
131
Grade Unit
mlbs
Contained Metal
60
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.41
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“131”

Context: 60.0

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredgoldTonnes: 45000000Grade: 0.24Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:52a5f7868d745e62c781
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
45000000
Grade
0.24
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.36
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.24”

Context: 45

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredsilverTonnes: 45000000Grade: 0.61Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:52a5f7868d745e62c781
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
45000000
Grade
0.61
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.36
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.61”

Context: 45

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredcopperTonnes: 45000000Grade: 97Grade Unit: mlbsContained Metal: 44Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:52a5f7868d745e62c781
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
45000000
Grade
97
Grade Unit
mlbs
Contained Metal
44
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.36
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“97”

Context: 45

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

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedgoldTonnes: 4000000Grade: 0.4Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:5b86c6109de944d3d21a
Mining method
open_pit
Material type
transitional

Resource Data

Category
indicated
Tonnes
4000000
Grade
0.4
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.54
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.40”

Context: 4

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedsilverTonnes: 4000000Grade: 1.28Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:5b86c6109de944d3d21a
Mining method
open_pit
Material type
transitional

Resource Data

Category
indicated
Tonnes
4000000
Grade
1.28
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.54
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“1.28”

Context: 4

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedcopperTonnes: 4000000Grade: 10Grade Unit: mlbsContained Metal: 4.4Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:5b86c6109de944d3d21a
Mining method
open_pit
Material type
transitional

Resource Data

Category
indicated
Tonnes
4000000
Grade
10
Grade Unit
mlbs
Contained Metal
4.4
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.54
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“10”

Context: 4

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredgoldTonnes: 1000000Grade: 0.24Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:e3e57dbcd28280084366
Mining method
open_pit
Material type
transitional

Resource Data

Category
inferred
Tonnes
1000000
Grade
0.24
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.42
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.24”

Context: 1

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredsilverTonnes: 1000000Grade: 0.39Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:e3e57dbcd28280084366
Mining method
open_pit
Material type
transitional

Resource Data

Category
inferred
Tonnes
1000000
Grade
0.39
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.42
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.39”

Context: 1

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredcopperTonnes: 1000000Grade: 2Grade Unit: mlbsContained Metal: 0.9Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:e3e57dbcd28280084366
Mining method
open_pit
Material type
transitional

Resource Data

Category
inferred
Tonnes
1000000
Grade
2
Grade Unit
mlbs
Contained Metal
0.9
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.42
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“2.0”

Context: 1

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

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedgoldTonnes: 134000000Grade: 0.33Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:d57281f47068d54ef85a
Mining method
open_pit
Material type
fresh

Resource Data

Category
indicated
Tonnes
134000000
Grade
0.33
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.48
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.33”

Context: 134

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedsilverTonnes: 134000000Grade: 1.29Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:d57281f47068d54ef85a
Mining method
open_pit
Material type
fresh

Resource Data

Category
indicated
Tonnes
134000000
Grade
1.29
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.48
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“1.29”

Context: 134

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedcopperTonnes: 134000000Grade: 326Grade Unit: mlbsContained Metal: 148Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:d57281f47068d54ef85a
Mining method
open_pit
Material type
fresh

Resource Data

Category
indicated
Tonnes
134000000
Grade
326
Grade Unit
mlbs
Contained Metal
148
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.48
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“326”

Context: 134

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredgoldTonnes: 106000000Grade: 0.28Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:9a6e0e4714be059c46ab
Mining method
open_pit
Material type
fresh

Resource Data

Category
inferred
Tonnes
106000000
Grade
0.28
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.41
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.28”

Context: 106

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredsilverTonnes: 106000000Grade: 0.65Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:9a6e0e4714be059c46ab
Mining method
open_pit
Material type
fresh

Resource Data

Category
inferred
Tonnes
106000000
Grade
0.65
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.41
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.65”

Context: 106

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredcopperTonnes: 106000000Grade: 244Grade Unit: mlbsContained Metal: 111Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:9a6e0e4714be059c46ab
Mining method
open_pit
Material type
fresh

Resource Data

Category
inferred
Tonnes
106000000
Grade
244
Grade Unit
mlbs
Contained Metal
111
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.41
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“244”

Context: 106

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

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedgoldTonnes: 1000000Grade: 0.33Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:83935a333ffbde250a76
Mining method
open_pit
Material type
transitional

Resource Data

Category
indicated
Tonnes
1000000
Grade
0.33
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.41
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.33”

Context: 1

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedsilverTonnes: 1000000Grade: 0.84Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:83935a333ffbde250a76
Mining method
open_pit
Material type
transitional

Resource Data

Category
indicated
Tonnes
1000000
Grade
0.84
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.41
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.84”

Context: 1

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedcopperTonnes: 1000000Grade: 2Grade Unit: mlbsContained Metal: 0.9Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:83935a333ffbde250a76
Mining method
open_pit
Material type
transitional

Resource Data

Category
indicated
Tonnes
1000000
Grade
2
Grade Unit
mlbs
Contained Metal
0.9
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.41
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“2.0”

Context: 1

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedgoldTonnes: 29000000Grade: 0.29Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:0528804c41927d3557aa
Mining method
open_pit
Material type
fresh

Resource Data

Category
indicated
Tonnes
29000000
Grade
0.29
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.4
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.29”

Context: 29

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedsilverTonnes: 29000000Grade: 0.92Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:0528804c41927d3557aa
Mining method
open_pit
Material type
fresh

Resource Data

Category
indicated
Tonnes
29000000
Grade
0.92
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.4
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.92”

Context: 29

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedcopperTonnes: 29000000Grade: 59Grade Unit: mlbsContained Metal: 26.6Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:0528804c41927d3557aa
Mining method
open_pit
Material type
fresh

Resource Data

Category
indicated
Tonnes
29000000
Grade
59
Grade Unit
mlbs
Contained Metal
26.6
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.4
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“59”

Context: 29

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredgoldTonnes: 82000000Grade: 0.26Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:4051cd8c9923d061752a
Mining method
open_pit
Material type
fresh

Resource Data

Category
inferred
Tonnes
82000000
Grade
0.26
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.36
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.26”

Context: 82

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredsilverTonnes: 82000000Grade: 0.28Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:4051cd8c9923d061752a
Mining method
open_pit
Material type
fresh

Resource Data

Category
inferred
Tonnes
82000000
Grade
0.28
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.36
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.28”

Context: 82

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredcopperTonnes: 82000000Grade: 152Grade Unit: mlbsContained Metal: 69Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:4051cd8c9923d061752a
Mining method
open_pit
Material type
fresh

Resource Data

Category
inferred
Tonnes
82000000
Grade
152
Grade Unit
mlbs
Contained Metal
69
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.36
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“152”

Context: 82

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

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedgoldTonnes: 5000000Grade: 0.37Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:3afe0dbfa3ccc9495ea3
Mining method
open_pit
Material type
transitional

Resource Data

Category
indicated
Tonnes
5000000
Grade
0.37
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.52
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.37”

Context: 5

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedsilverTonnes: 5000000Grade: 1.17Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:3afe0dbfa3ccc9495ea3
Mining method
open_pit
Material type
transitional

Resource Data

Category
indicated
Tonnes
5000000
Grade
1.17
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.52
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“1.17”

Context: 5

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedcopperTonnes: 5000000Grade: 14Grade Unit: mlbsContained Metal: 6.3Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:3afe0dbfa3ccc9495ea3
Mining method
open_pit
Material type
transitional

Resource Data

Category
indicated
Tonnes
5000000
Grade
14
Grade Unit
mlbs
Contained Metal
6.3
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.52
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“14”

Context: 5

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredgoldTonnes: 2000000Grade: 0.27Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:3313e2222df7bb14a073
Mining method
open_pit
Material type
transitional

Resource Data

Category
inferred
Tonnes
2000000
Grade
0.27
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.42
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.27”

Context: 2

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredsilverTonnes: 2000000Grade: 0.63Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:3313e2222df7bb14a073
Mining method
open_pit
Material type
transitional

Resource Data

Category
inferred
Tonnes
2000000
Grade
0.63
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.42
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.63”

Context: 2

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredcopperTonnes: 2000000Grade: 5Grade Unit: mlbsContained Metal: 2.4Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:3313e2222df7bb14a073
Mining method
open_pit
Material type
transitional

Resource Data

Category
inferred
Tonnes
2000000
Grade
5
Grade Unit
mlbs
Contained Metal
2.4
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.42
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“5”

Context: 2

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

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedgoldTonnes: 164000000Grade: 0.33Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:30ea4b67384116cf8122
Mining method
open_pit
Material type
fresh

Resource Data

Category
indicated
Tonnes
164000000
Grade
0.33
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.46
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.33”

Context: 164

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedsilverTonnes: 164000000Grade: 1.22Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:30ea4b67384116cf8122
Mining method
open_pit
Material type
fresh

Resource Data

Category
indicated
Tonnes
164000000
Grade
1.22
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.46
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“1.22”

Context: 164

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedcopperTonnes: 164000000Grade: 385Grade Unit: mlbsContained Metal: 174Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:30ea4b67384116cf8122
Mining method
open_pit
Material type
fresh

Resource Data

Category
indicated
Tonnes
164000000
Grade
385
Grade Unit
mlbs
Contained Metal
174
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.46
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“385”

Context: 164

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredgoldTonnes: 189000000Grade: 0.27Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:d521a386e9c79a74b86c
Mining method
open_pit
Material type
fresh

Resource Data

Category
inferred
Tonnes
189000000
Grade
0.27
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.39
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.27”

Context: 189

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredsilverTonnes: 189000000Grade: 0.49Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:d521a386e9c79a74b86c
Mining method
open_pit
Material type
fresh

Resource Data

Category
inferred
Tonnes
189000000
Grade
0.49
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.39
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.49”

Context: 189

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredcopperTonnes: 189000000Grade: 396Grade Unit: mlbsContained Metal: 180Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:d521a386e9c79a74b86c
Mining method
open_pit
Material type
fresh

Resource Data

Category
inferred
Tonnes
189000000
Grade
396
Grade Unit
mlbs
Contained Metal
180
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.39
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“396”

Context: 189

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

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredgoldTonnes: 0Grade: 0.22Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:8626809641a749c8fe0c
Mining method
open_pit
Material type
transitional

Resource Data

Category
inferred
Tonnes
0
Grade
0.22
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.33
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.22”

Context: 0

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredsilverTonnes: 0Grade: 0.12Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:8626809641a749c8fe0c
Mining method
open_pit
Material type
transitional

Resource Data

Category
inferred
Tonnes
0
Grade
0.12
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.33
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.12”

Context: 0

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredcopperTonnes: 0Grade: 0.9Grade Unit: mlbsContained Metal: 0.4Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:8626809641a749c8fe0c
Mining method
open_pit
Material type
transitional

Resource Data

Category
inferred
Tonnes
0
Grade
0.9
Grade Unit
mlbs
Contained Metal
0.4
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.33
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.9”

Context: 0

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

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedgoldTonnes: 10000000Grade: 0.25Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:172747e56ce264de56ec
Mining method
open_pit
Material type
fresh

Resource Data

Category
indicated
Tonnes
10000000
Grade
0.25
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.35
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.25”

Context: 10

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedsilverTonnes: 10000000Grade: 0.69Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:172747e56ce264de56ec
Mining method
open_pit
Material type
fresh

Resource Data

Category
indicated
Tonnes
10000000
Grade
0.69
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.35
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.69”

Context: 10

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedcopperTonnes: 10000000Grade: 18Grade Unit: mlbsContained Metal: 8Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:172747e56ce264de56ec
Mining method
open_pit
Material type
fresh

Resource Data

Category
indicated
Tonnes
10000000
Grade
18
Grade Unit
mlbs
Contained Metal
8
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.35
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“18”

Context: 10

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredgoldTonnes: 11000000Grade: 0.23Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:fa370b96dc12b882eefb
Mining method
open_pit
Material type
fresh

Resource Data

Category
inferred
Tonnes
11000000
Grade
0.23
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.34
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.23”

Context: 11

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredsilverTonnes: 11000000Grade: 0.3Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:fa370b96dc12b882eefb
Mining method
open_pit
Material type
fresh

Resource Data

Category
inferred
Tonnes
11000000
Grade
0.3
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.34
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.30”

Context: 11

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredcopperTonnes: 11000000Grade: 20Grade Unit: mlbsContained Metal: 8.9Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:fa370b96dc12b882eefb
Mining method
open_pit
Material type
fresh

Resource Data

Category
inferred
Tonnes
11000000
Grade
20
Grade Unit
mlbs
Contained Metal
8.9
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.34
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“20”

Context: 11

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

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedgoldTonnes: 36000000Grade: 0.3Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:e67128d6436a7aaa226b
Mining method
open_pit
Material type
transitional

Resource Data

Category
indicated
Tonnes
36000000
Grade
0.3
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.44
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.30”

Context: 36

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedsilverTonnes: 36000000Grade: 1.46Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:e67128d6436a7aaa226b
Mining method
open_pit
Material type
transitional

Resource Data

Category
indicated
Tonnes
36000000
Grade
1.46
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.44
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“1.46”

Context: 36

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedcopperTonnes: 36000000Grade: 87Grade Unit: mlbsContained Metal: 40Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:e67128d6436a7aaa226b
Mining method
open_pit
Material type
transitional

Resource Data

Category
indicated
Tonnes
36000000
Grade
87
Grade Unit
mlbs
Contained Metal
40
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.44
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“87”

Context: 36

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredgoldTonnes: 19000000Grade: 0.25Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:17d827b1ae4f8cfdc454
Mining method
open_pit
Material type
transitional

Resource Data

Category
inferred
Tonnes
19000000
Grade
0.25
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.37
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.25”

Context: 19

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredsilverTonnes: 19000000Grade: 0.75Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:17d827b1ae4f8cfdc454
Mining method
open_pit
Material type
transitional

Resource Data

Category
inferred
Tonnes
19000000
Grade
0.75
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.37
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.75”

Context: 19

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredcopperTonnes: 19000000Grade: 41Grade Unit: mlbsContained Metal: 19Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:17d827b1ae4f8cfdc454
Mining method
open_pit
Material type
transitional

Resource Data

Category
inferred
Tonnes
19000000
Grade
41
Grade Unit
mlbs
Contained Metal
19
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.37
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“41”

Context: 19

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

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedgoldTonnes: 12000000Grade: 0.26Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:7887c8622bba3a85c7ef
Mining method
open_pit
Material type
fresh

Resource Data

Category
indicated
Tonnes
12000000
Grade
0.26
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.38
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.26”

Context: 12

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedsilverTonnes: 12000000Grade: 1.2Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:7887c8622bba3a85c7ef
Mining method
open_pit
Material type
fresh

Resource Data

Category
indicated
Tonnes
12000000
Grade
1.2
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.38
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“1.20”

Context: 12

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedcopperTonnes: 12000000Grade: 24Grade Unit: mlbsContained Metal: 11Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:7887c8622bba3a85c7ef
Mining method
open_pit
Material type
fresh

Resource Data

Category
indicated
Tonnes
12000000
Grade
24
Grade Unit
mlbs
Contained Metal
11
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.38
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“24”

Context: 12

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredgoldTonnes: 15000000Grade: 0.22Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:9510c0fe82aea33008b6
Mining method
open_pit
Material type
fresh

Resource Data

Category
inferred
Tonnes
15000000
Grade
0.22
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.36
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.22”

Context: 15

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredsilverTonnes: 15000000Grade: 0.67Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:9510c0fe82aea33008b6
Mining method
open_pit
Material type
fresh

Resource Data

Category
inferred
Tonnes
15000000
Grade
0.67
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.36
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.67”

Context: 15

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredcopperTonnes: 15000000Grade: 35Grade Unit: mlbsContained Metal: 16Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:9510c0fe82aea33008b6
Mining method
open_pit
Material type
fresh

Resource Data

Category
inferred
Tonnes
15000000
Grade
35
Grade Unit
mlbs
Contained Metal
16
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.36
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“35”

Context: 15

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

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedgoldTonnes: 38000000Grade: 0.3Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:0278db5287d8f86d63a7
Mining method
open_pit
Material type
transitional

Resource Data

Category
indicated
Tonnes
38000000
Grade
0.3
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.44
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.30”

Context: 38

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedsilverTonnes: 38000000Grade: 1.43Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:0278db5287d8f86d63a7
Mining method
open_pit
Material type
transitional

Resource Data

Category
indicated
Tonnes
38000000
Grade
1.43
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.44
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“1.43”

Context: 38

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedcopperTonnes: 38000000Grade: 89Grade Unit: mlbsContained Metal: 41Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:0278db5287d8f86d63a7
Mining method
open_pit
Material type
transitional

Resource Data

Category
indicated
Tonnes
38000000
Grade
89
Grade Unit
mlbs
Contained Metal
41
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.44
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“89”

Context: 38

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredgoldTonnes: 20000000Grade: 0.25Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:826e92afe469cb8f8c89
Mining method
open_pit
Material type
transitional

Resource Data

Category
inferred
Tonnes
20000000
Grade
0.25
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.37
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.25”

Context: 20

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredsilverTonnes: 20000000Grade: 0.74Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:826e92afe469cb8f8c89
Mining method
open_pit
Material type
transitional

Resource Data

Category
inferred
Tonnes
20000000
Grade
0.74
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.37
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.74”

Context: 20

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredcopperTonnes: 20000000Grade: 42Grade Unit: mlbsContained Metal: 19Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:826e92afe469cb8f8c89
Mining method
open_pit
Material type
transitional

Resource Data

Category
inferred
Tonnes
20000000
Grade
42
Grade Unit
mlbs
Contained Metal
19
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.37
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“42”

Context: 20

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

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedgoldTonnes: 22000000Grade: 0.26Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:4003d0a135ac047688a9
Mining method
open_pit
Material type
fresh

Resource Data

Category
indicated
Tonnes
22000000
Grade
0.26
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.37
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.26”

Context: 22

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedsilverTonnes: 22000000Grade: 0.97Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:4003d0a135ac047688a9
Mining method
open_pit
Material type
fresh

Resource Data

Category
indicated
Tonnes
22000000
Grade
0.97
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.37
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.97”

Context: 22

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedcopperTonnes: 22000000Grade: 42Grade Unit: mlbsContained Metal: 19Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:4003d0a135ac047688a9
Mining method
open_pit
Material type
fresh

Resource Data

Category
indicated
Tonnes
22000000
Grade
42
Grade Unit
mlbs
Contained Metal
19
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.37
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“42”

Context: 22

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredgoldTonnes: 25000000Grade: 0.23Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:b7cb24e5991c6ad11eb1
Mining method
open_pit
Material type
fresh

Resource Data

Category
inferred
Tonnes
25000000
Grade
0.23
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.35
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.23”

Context: 25

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredsilverTonnes: 25000000Grade: 0.51Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:b7cb24e5991c6ad11eb1
Mining method
open_pit
Material type
fresh

Resource Data

Category
inferred
Tonnes
25000000
Grade
0.51
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.35
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.51”

Context: 25

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredcopperTonnes: 25000000Grade: 55Grade Unit: mlbsContained Metal: 25Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:b7cb24e5991c6ad11eb1
Mining method
open_pit
Material type
fresh

Resource Data

Category
inferred
Tonnes
25000000
Grade
55
Grade Unit
mlbs
Contained Metal
25
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.35
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“55”

Context: 25

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

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedgoldTonnes: 43000000Grade: 0.31Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:9c5df1016e950bfcde87
Mining method
open_pit
Material type
transitional

Resource Data

Category
indicated
Tonnes
43000000
Grade
0.31
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.45
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.31”

Context: 43

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedsilverTonnes: 43000000Grade: 1.4Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:9c5df1016e950bfcde87
Mining method
open_pit
Material type
transitional

Resource Data

Category
indicated
Tonnes
43000000
Grade
1.4
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.45
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“1.40”

Context: 43

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedcopperTonnes: 43000000Grade: 103Grade Unit: mlbsContained Metal: 47Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:9c5df1016e950bfcde87
Mining method
open_pit
Material type
transitional

Resource Data

Category
indicated
Tonnes
43000000
Grade
103
Grade Unit
mlbs
Contained Metal
47
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.45
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“103”

Context: 43

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredgoldTonnes: 22000000Grade: 0.25Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:c838b787722479a582f9
Mining method
open_pit
Material type
transitional

Resource Data

Category
inferred
Tonnes
22000000
Grade
0.25
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.38
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.25”

Context: 22

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredsilverTonnes: 22000000Grade: 0.73Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:c838b787722479a582f9
Mining method
open_pit
Material type
transitional

Resource Data

Category
inferred
Tonnes
22000000
Grade
0.73
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.38
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.73”

Context: 22

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredcopperTonnes: 22000000Grade: 48Grade Unit: mlbsContained Metal: 22Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:c838b787722479a582f9
Mining method
open_pit
Material type
transitional

Resource Data

Category
inferred
Tonnes
22000000
Grade
48
Grade Unit
mlbs
Contained Metal
22
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.38
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“48”

Context: 22

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

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedgoldTonnes: 186000000Grade: 0.32Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:075223967918c6c00557
Mining method
open_pit
Material type
fresh

Resource Data

Category
indicated
Tonnes
186000000
Grade
0.32
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.45
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.32”

Context: 186

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedsilverTonnes: 186000000Grade: 1.19Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:075223967918c6c00557
Mining method
open_pit
Material type
fresh

Resource Data

Category
indicated
Tonnes
186000000
Grade
1.19
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.45
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“1.19”

Context: 186

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedcopperTonnes: 186000000Grade: 426Grade Unit: mlbsContained Metal: 193Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:075223967918c6c00557
Mining method
open_pit
Material type
fresh

Resource Data

Category
indicated
Tonnes
186000000
Grade
426
Grade Unit
mlbs
Contained Metal
193
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.45
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“426”

Context: 186

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredgoldTonnes: 214000000Grade: 0.27Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:3183bd838c2e00070ecd
Mining method
open_pit
Material type
fresh

Resource Data

Category
inferred
Tonnes
214000000
Grade
0.27
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.38
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.27”

Context: 214

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredsilverTonnes: 214000000Grade: 0.49Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:3183bd838c2e00070ecd
Mining method
open_pit
Material type
fresh

Resource Data

Category
inferred
Tonnes
214000000
Grade
0.49
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.38
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.49”

Context: 214

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredcopperTonnes: 214000000Grade: 451Grade Unit: mlbsContained Metal: 205Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:3183bd838c2e00070ecd
Mining method
open_pit
Material type
fresh

Resource Data

Category
inferred
Tonnes
214000000
Grade
451
Grade Unit
mlbs
Contained Metal
205
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.38
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“451”

Context: 214

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

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedgoldTonnes: 40000000Grade: 0.38Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:55da0037014821353093
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
40000000
Grade
0.38
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.56
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.38”

Context: 40

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedsilverTonnes: 40000000Grade: 1.26Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:55da0037014821353093
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
40000000
Grade
1.26
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.56
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“1.26”

Context: 40

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

indicatedcopperTonnes: 40000000Grade: 90Grade Unit: mlbsContained Metal: 40Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:55da0037014821353093
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
40000000
Grade
90
Grade Unit
mlbs
Contained Metal
40
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.56
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“90”

Context: 40

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 Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredgoldTonnes: 190000000Grade: 0.32Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:2cc273e677a43d2ef287
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
190000000
Grade
0.32
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.49
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.32”

Context: 190

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredsilverTonnes: 190000000Grade: 1.14Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:2cc273e677a43d2ef287
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
190000000
Grade
1.14
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.49
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“1.14”

Context: 190

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredcopperTonnes: 190000000Grade: 410Grade Unit: mlbsContained Metal: 190Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:2cc273e677a43d2ef287
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
190000000
Grade
410
Grade Unit
mlbs
Contained Metal
190
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.49
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“410”

Context: 190

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

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredgoldTonnes: 220000000Grade: 0.33Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
gold
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:4fb5c83b25b9bd7fefe6
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
220000000
Grade
0.33
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.5
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“0.33”

Context: 220

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredsilverTonnes: 220000000Grade: 1.16Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:4fb5c83b25b9bd7fefe6
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
220000000
Grade
1.16
Grade Unit
g/t
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.5
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“1.16”

Context: 220

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

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

inferredcopperTonnes: 220000000Grade: 490Grade Unit: mlbsContained Metal: 220Contained Unit: ktView all details
Link to this fact

Identity

Commodity
copper
Ticker
STM

Resource scope

Estimate type
resource
Reporting standards
jorc
Resource group id
resource:4fb5c83b25b9bd7fefe6
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
220000000
Grade
490
Grade Unit
mlbs
Contained Metal
220
Contained Unit
kt
Cutoff Grade
0.3
Cutoff Unit
g/t AuEq

Metal Equivalent

Metal Eq. Grade
0.5
Metal Eq. Unit
g/t AuEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-12T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

Negative factors

  • Fact expanded from resource table columns (model omitted this commodity).

Evidence · table

“490”

Context: 220

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

JORC Compliantpositive

Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.

Why it applies: reporting_standards includes jorc

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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

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.