Hudbay and Mitsubishi Approve Copper World Project Construction; Advancing Next Major U.S. Copper Mine Towards First Production in 2029

Original announcement by globenewswire on

Company
Hudbay Minerals Inc.
Ticker
HBM
Exchange
Unavailable
Region
Arizona
Primary commodity
Copper
Secondary commodities
Molybdenum, Gold, Silver
Document categories
Other, Capital raise, Resource update
Extracted
2026-10-21 06:34:19 UTC

Analysis by Minestarters Atlas

Atlas analysis published:

Minestarters Atlas analysis

Summary

Hudbay and Mitsubishi have approved the construction of the Copper World project in Arizona, based on a Definitive Feasibility Study (DFS). The project, a 70/30 joint venture, targets first copper production in the second half of 2029. The DFS outlines robust economics, including a Base Case after-tax NPV(8%) of $1.2 billion and an IRR of 16.8%, with an Extension Case showing an NPV(8%) of $2.5 billion and an IRR of 18.8% at a long-term copper price of $5.00/lb. The project is expected to double Hudbay's annual copper production, with initial capital of $2.07 billion prudently funded through a combination of Mitsubishi's equity investment, a precious metals stream with Wheaton, and anticipated project-level debt.

Reasoning: Hudbay and Mitsubishi have approved the construction of the Copper World project based on a robust DFS, outlining strong economics and a clear funding strategy, despite a slight reduction in reserve grade.

Positive factors

  • Final Investment Decision (FID) approved for a major copper project.
  • Robust DFS economics with strong NPV and IRR for both Base and Extension Cases.
  • Significant increase in annual copper production, doubling Hudbay's current levels.
  • Prudent funding plan with substantial partner contributions and low leverage.
  • Long mine life (15 years Base Case, 37 years Extension Case).
  • NI 43-101 compliant and QP signed.
  • Inferred resource contained metal growth.

Negative factors

  • Overall reduction in reserve grade compared to prior PFS.
  • Slight decrease in M&I contained copper metal.
  • Extension Case requires federal permits, introducing some permitting risk.

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

Facts used in scoring: 59

Classification and evidence

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: The document states that Hudbay will be filing a technical report pursuant to National Instrument 43-101.

Evidence · text

“Hudbay will be filing a technical report pursuant to National Instrument 43-101”

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: Olivier Tavchandjian, P. Geo, Hudbay’s Senior Vice President, Exploration and Technical Services, is stated as a qualified person who approved the scientific and technical information.

Evidence · text

“The scientific and technical information contained in this news release has been approved by Olivier Tavchandjian, P. Geo, Hudbay’s Senior Vice President, Exploration and Technical Services. Mr. Tavchandjian is a qualified person pursuant to Canadian Securities Administrators’ National Instrument 43-101”

Resource Updateneutral

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

Why it applies: The document discusses 'The changes between the 2023 and 2026 mineral resource estimates' and provides a comparison table.

Evidence · text

“The changes between the 2023 and 2026 mineral resource estimates”

Tonnage Growthpositive

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

Why it applies: Inferred resources increased from 275 million tonnes in 2023 PFS to 309 million tonnes in 2026 DFS.

Evidence · table

“309”

Context: Inferred

Contained Metal Growthpositive

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

Why it applies: The metal content in inferred mineral resource estimates has increased by 5%.

Evidence · text

“metal content in inferred mineral resource estimates has increased by 5%”

Grade Declinenegative

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

Why it applies: The 2026 mineral reserve estimates show a lower average copper grade of 0.47% compared to the 2023 PFS estimate of 0.54%.

Evidence · text

“The 2026 mineral reserve estimates of 390 million tonnes at 0.47% copper represent a comparable tonnage at a lower average copper grade to the 2023 PFS mineral reserve estimates of 385 million tonnes at 0.54% copper.”

Open Pit Miningneutral · Story-specific tag

No canonical definition is currently available.

Why it applies: The project is explicitly described as 'one of the largest open-pit copper mines' and 'a traditional open pit shovel and truck operation'.

Evidence · text

“Copper World Will Be One of the Largest Open-Pit Copper Mines in the United States”

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: The announcement is based on the results of a definitive feasibility study (DFS).

Evidence · text

“announced the results of the definitive feasibility study”

Joint Venturepositive · Story-specific tag

No canonical definition is currently available.

Why it applies: Copper World is 30%-owned by Mitsubishi Corporation pursuant to a joint venture agreement.

Evidence · text

“Copper World is 30%-owned by Mitsubishi Corporation (“Mitsubishi”) pursuant to a joint venture agreement entered into with Hudbay in January 2026.”

Stream Financingpositive · Story-specific tag

No canonical definition is currently available.

Why it applies: Wheaton Precious Metals Corp. provided a $230 million deposit for an existing precious metals stream.

Evidence · text

“Wheaton Precious Metals Corp.’s (“Wheaton”) $230 million deposit for the existing precious metals stream”

Debt Financingpositive · Story-specific tag

No canonical definition is currently available.

Why it applies: The funding plan includes approximately $650 million in anticipated project-level debt financing.

Evidence · text

“approximately $650 million in anticipated project-level debt financing”

Permitting Risknegative · Story-specific tag

No canonical definition is currently available.

Why it applies: The Extension Case, which significantly extends mine life, is subject to obtaining federal permits.

Evidence · text

“The extension case for the Copper World project contemplates a 37-year mine life utilizing only measured and indicated mineral resources and expands mining activities onto federal lands in year 10, subject to obtaining federal permits”

Extracted facts

Stored fact records: 30. Some facts used in scoring do not have a stored record.

Resource Estimates (30)

provenCopper World · copperTonnes: 330000000Grade: 0.47Grade Unit: %View all details
Link to this fact

Identity

Project
Copper World
Commodity
copper
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
reserve
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:d695d3b9b38736fba625
Mining method
open_pit

Resource Data

Category
proven
Tonnes
330000000
Grade
0.47
Grade Unit
%
Cutoff Grade
5.8
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Proven reserves of 330 million tonnes at 0.47% copper provide a strong foundation for the project.

Positive factors

  • High confidence in Proven reserves.
  • Significant tonnage of copper in Proven category.

Evidence · table

“0.47”

Context: 330

Tags used in scoring

Proven Reservepositive

Measured Resource with demonstrated economic viability after applying modifying factors.

Why it applies: category is "proven"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

provenCopper World · molybdenumTonnes: 330000000Grade: 105Grade Unit: g/tView all details
Link to this fact

Identity

Project
Copper World
Commodity
molybdenum
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
reserve
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:d695d3b9b38736fba625
Mining method
open_pit

Resource Data

Category
proven
Tonnes
330000000
Grade
105
Grade Unit
g/t
Cutoff Grade
5.8
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Proven reserves include 105 g/t molybdenum, adding to project value.

Positive factors

  • Molybdenum as a valuable byproduct in Proven reserves.

Evidence · table

“105”

Context: 330

Tags used in scoring

Proven Reservepositive

Measured Resource with demonstrated economic viability after applying modifying factors.

Why it applies: category is "proven"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

provenCopper World · goldTonnes: 330000000Grade: 0.024Grade Unit: g/tView all details
Link to this fact

Identity

Project
Copper World
Commodity
gold
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
reserve
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:d695d3b9b38736fba625
Mining method
open_pit

Resource Data

Category
proven
Tonnes
330000000
Grade
0.024
Grade Unit
g/t
Cutoff Grade
5.8
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Proven reserves include 0.024 g/t gold as a byproduct.

Positive factors

  • Gold as a byproduct in Proven reserves.

Evidence · table

“0.024”

Context: 330

Tags used in scoring

Proven Reservepositive

Measured Resource with demonstrated economic viability after applying modifying factors.

Why it applies: category is "proven"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

provenCopper World · silverTonnes: 330000000Grade: 5.25Grade Unit: g/tView all details
Link to this fact

Identity

Project
Copper World
Commodity
silver
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
reserve
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:d695d3b9b38736fba625
Mining method
open_pit

Resource Data

Category
proven
Tonnes
330000000
Grade
5.25
Grade Unit
g/t
Cutoff Grade
5.8
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Proven reserves include 5.25 g/t silver as a byproduct.

Positive factors

  • Silver as a byproduct in Proven reserves.

Evidence · table

“5.25”

Context: 330

Tags used in scoring

Proven Reservepositive

Measured Resource with demonstrated economic viability after applying modifying factors.

Why it applies: category is "proven"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

probableCopper World · copperTonnes: 60000000Grade: 0.46Grade Unit: %View all details
Link to this fact

Identity

Project
Copper World
Commodity
copper
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
reserve
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:44bc181597cbf2ec2e26
Mining method
open_pit

Resource Data

Category
probable
Tonnes
60000000
Grade
0.46
Grade Unit
%
Cutoff Grade
5.8
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Probable reserves of 60 million tonnes at 0.46% copper add to the project's economic viability.

Positive factors

  • Significant tonnage of copper in Probable reserves.

Evidence · table

“0.46”

Context: 60

Tags used in scoring

Probable Reservepositive

Indicated Resource with demonstrated economic viability after applying modifying factors.

Why it applies: category is "probable"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

probableCopper World · molybdenumTonnes: 60000000Grade: 94Grade Unit: g/tView all details
Link to this fact

Identity

Project
Copper World
Commodity
molybdenum
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
reserve
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:44bc181597cbf2ec2e26
Mining method
open_pit

Resource Data

Category
probable
Tonnes
60000000
Grade
94
Grade Unit
g/t
Cutoff Grade
5.8
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Probable reserves include 94 g/t molybdenum, contributing to overall project value.

Positive factors

  • Molybdenum as a valuable byproduct in Probable reserves.

Evidence · table

“94”

Context: 60

Tags used in scoring

Probable Reservepositive

Indicated Resource with demonstrated economic viability after applying modifying factors.

Why it applies: category is "probable"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

probableCopper World · goldTonnes: 60000000Grade: 0.018Grade Unit: g/tView all details
Link to this fact

Identity

Project
Copper World
Commodity
gold
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
reserve
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:44bc181597cbf2ec2e26
Mining method
open_pit

Resource Data

Category
probable
Tonnes
60000000
Grade
0.018
Grade Unit
g/t
Cutoff Grade
5.8
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Probable reserves include 0.018 g/t gold as a byproduct.

Positive factors

  • Gold as a byproduct in Probable reserves.

Evidence · table

“0.018”

Context: 60

Tags used in scoring

Probable Reservepositive

Indicated Resource with demonstrated economic viability after applying modifying factors.

Why it applies: category is "probable"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

probableCopper World · silverTonnes: 60000000Grade: 4.14Grade Unit: g/tView all details
Link to this fact

Identity

Project
Copper World
Commodity
silver
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
reserve
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:44bc181597cbf2ec2e26
Mining method
open_pit

Resource Data

Category
probable
Tonnes
60000000
Grade
4.14
Grade Unit
g/t
Cutoff Grade
5.8
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Probable reserves include 4.14 g/t silver as a byproduct.

Positive factors

  • Silver as a byproduct in Probable reserves.

Evidence · table

“4.14”

Context: 60

Tags used in scoring

Probable Reservepositive

Indicated Resource with demonstrated economic viability after applying modifying factors.

Why it applies: category is "probable"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

probableCopper World · copperTonnes: 390000000Grade: 0.47Grade Unit: %View all details
Link to this fact

Identity

Project
Copper World
Commodity
copper
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
reserve
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:dc608ac4c888694264b6
Mining method
open_pit

Resource Data

Category
probable
Tonnes
390000000
Grade
0.47
Grade Unit
%
Cutoff Grade
5.8
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Total Proven and Probable reserves of 390 million tonnes at 0.47% copper underpin the project's economics.

Positive factors

  • Substantial total Proven and Probable reserves for copper.

Evidence · table

“0.47”

Context: 390

Tags used in scoring

Probable Reservepositive

Indicated Resource with demonstrated economic viability after applying modifying factors.

Why it applies: category is "probable"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

probableCopper World · molybdenumTonnes: 390000000Grade: 103Grade Unit: g/tView all details
Link to this fact

Identity

Project
Copper World
Commodity
molybdenum
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
reserve
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:dc608ac4c888694264b6
Mining method
open_pit

Resource Data

Category
probable
Tonnes
390000000
Grade
103
Grade Unit
g/t
Cutoff Grade
5.8
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Total Proven and Probable reserves include 103 g/t molybdenum.

Positive factors

  • Molybdenum as a significant byproduct in total reserves.

Evidence · table

“103”

Context: 390

Tags used in scoring

Probable Reservepositive

Indicated Resource with demonstrated economic viability after applying modifying factors.

Why it applies: category is "probable"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

probableCopper World · goldTonnes: 390000000Grade: 0.023Grade Unit: g/tView all details
Link to this fact

Identity

Project
Copper World
Commodity
gold
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
reserve
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:dc608ac4c888694264b6
Mining method
open_pit

Resource Data

Category
probable
Tonnes
390000000
Grade
0.023
Grade Unit
g/t
Cutoff Grade
5.8
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Total Proven and Probable reserves include 0.023 g/t gold.

Positive factors

  • Gold as a byproduct in total reserves.

Evidence · table

“0.023”

Context: 390

Tags used in scoring

Probable Reservepositive

Indicated Resource with demonstrated economic viability after applying modifying factors.

Why it applies: category is "probable"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

probableCopper World · silverTonnes: 390000000Grade: 5.08Grade Unit: g/tView all details
Link to this fact

Identity

Project
Copper World
Commodity
silver
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
reserve
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:dc608ac4c888694264b6
Mining method
open_pit

Resource Data

Category
probable
Tonnes
390000000
Grade
5.08
Grade Unit
g/t
Cutoff Grade
5.8
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Total Proven and Probable reserves include 5.08 g/t silver.

Positive factors

  • Silver as a byproduct in total reserves.

Evidence · table

“5.08”

Context: 390

Tags used in scoring

Probable Reservepositive

Indicated Resource with demonstrated economic viability after applying modifying factors.

Why it applies: category is "probable"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

measuredCopper World · copperTonnes: 890000000Grade: 0.42Grade Unit: %View all details
Link to this fact

Identity

Project
Copper World
Commodity
copper
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:ed0e1bf999512996bec8
Mining method
open_pit

Resource Data

Category
measured
Tonnes
890000000
Grade
0.42
Grade Unit
%
Cutoff Grade
6.03
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Measured resources of 890 million tonnes at 0.42% copper provide high confidence in the resource base.

Positive factors

  • Large Measured resource tonnage for copper.

Evidence · table

“0.42”

Context: 890

Tags used in scoring

Measured Resourcepositive

Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves.

Why it applies: category is "measured"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

measuredCopper World · molybdenumTonnes: 890000000Grade: 124Grade Unit: g/tView all details
Link to this fact

Identity

Project
Copper World
Commodity
molybdenum
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:ed0e1bf999512996bec8
Mining method
open_pit

Resource Data

Category
measured
Tonnes
890000000
Grade
124
Grade Unit
g/t
Cutoff Grade
6.03
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Measured resources include 124 g/t molybdenum.

Positive factors

  • Molybdenum as a byproduct in Measured resources.

Evidence · table

“124”

Context: 890

Tags used in scoring

Measured Resourcepositive

Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves.

Why it applies: category is "measured"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

measuredCopper World · goldTonnes: 890000000Grade: 0.022Grade Unit: g/tView all details
Link to this fact

Identity

Project
Copper World
Commodity
gold
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:ed0e1bf999512996bec8
Mining method
open_pit

Resource Data

Category
measured
Tonnes
890000000
Grade
0.022
Grade Unit
g/t
Cutoff Grade
6.03
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Measured resources include 0.022 g/t gold.

Positive factors

  • Gold as a byproduct in Measured resources.

Evidence · table

“0.022”

Context: 890

Tags used in scoring

Measured Resourcepositive

Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves.

Why it applies: category is "measured"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

measuredCopper World · silverTonnes: 890000000Grade: 4.43Grade Unit: g/tView all details
Link to this fact

Identity

Project
Copper World
Commodity
silver
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:ed0e1bf999512996bec8
Mining method
open_pit

Resource Data

Category
measured
Tonnes
890000000
Grade
4.43
Grade Unit
g/t
Cutoff Grade
6.03
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Measured resources include 4.43 g/t silver.

Positive factors

  • Silver as a byproduct in Measured resources.

Evidence · table

“4.43”

Context: 890

Tags used in scoring

Measured Resourcepositive

Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves.

Why it applies: category is "measured"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

indicatedCopper World · copperTonnes: 347000000Grade: 0.35Grade Unit: %View all details
Link to this fact

Identity

Project
Copper World
Commodity
copper
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:c1a38bdfb3771c5b905e
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
347000000
Grade
0.35
Grade Unit
%
Cutoff Grade
6.03
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Indicated resources of 347 million tonnes at 0.35% copper provide further confidence in the resource base.

Positive factors

  • Significant tonnage of copper in Indicated resources.

Evidence · table

“0.35”

Context: 347

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

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

indicatedCopper World · molybdenumTonnes: 347000000Grade: 109Grade Unit: g/tView all details
Link to this fact

Identity

Project
Copper World
Commodity
molybdenum
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:c1a38bdfb3771c5b905e
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
347000000
Grade
109
Grade Unit
g/t
Cutoff Grade
6.03
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Indicated resources include 109 g/t molybdenum.

Positive factors

  • Molybdenum as a byproduct in Indicated resources.

Evidence · table

“109”

Context: 347

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

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

indicatedCopper World · goldTonnes: 347000000Grade: 0.015Grade Unit: g/tView all details
Link to this fact

Identity

Project
Copper World
Commodity
gold
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:c1a38bdfb3771c5b905e
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
347000000
Grade
0.015
Grade Unit
g/t
Cutoff Grade
6.03
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Indicated resources include 0.015 g/t gold.

Positive factors

  • Gold as a byproduct in Indicated resources.

Evidence · table

“0.015”

Context: 347

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

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

indicatedCopper World · silverTonnes: 347000000Grade: 3.32Grade Unit: g/tView all details
Link to this fact

Identity

Project
Copper World
Commodity
silver
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:c1a38bdfb3771c5b905e
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
347000000
Grade
3.32
Grade Unit
g/t
Cutoff Grade
6.03
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Indicated resources include 3.32 g/t silver.

Positive factors

  • Silver as a byproduct in Indicated resources.

Evidence · table

“3.32”

Context: 347

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

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

indicatedCopper World · copperTonnes: 1236000000Grade: 0.4Grade Unit: %View all details
Link to this fact

Identity

Project
Copper World
Commodity
copper
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:23d7adc167f224da7f24
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
1236000000
Grade
0.4
Grade Unit
%
Cutoff Grade
6.03
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Total Measured and Indicated resources of 1.236 billion tonnes at 0.40% copper provide a substantial resource base.

Positive factors

  • Very large total Measured and Indicated resource for copper.

Evidence · table

“0.40”

Context: 1,236

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

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

indicatedCopper World · molybdenumTonnes: 1236000000Grade: 120Grade Unit: g/tView all details
Link to this fact

Identity

Project
Copper World
Commodity
molybdenum
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:23d7adc167f224da7f24
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
1236000000
Grade
120
Grade Unit
g/t
Cutoff Grade
6.03
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Total Measured and Indicated resources include 120 g/t molybdenum.

Positive factors

  • Molybdenum as a byproduct in total Measured and Indicated resources.

Evidence · table

“120”

Context: 1,236

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

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

indicatedCopper World · goldTonnes: 1236000000Grade: 0.02Grade Unit: g/tView all details
Link to this fact

Identity

Project
Copper World
Commodity
gold
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:23d7adc167f224da7f24
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
1236000000
Grade
0.02
Grade Unit
g/t
Cutoff Grade
6.03
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Total Measured and Indicated resources include 0.020 g/t gold.

Positive factors

  • Gold as a byproduct in total Measured and Indicated resources.

Evidence · table

“0.020”

Context: 1,236

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

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

indicatedCopper World · silverTonnes: 1236000000Grade: 4.12Grade Unit: g/tView all details
Link to this fact

Identity

Project
Copper World
Commodity
silver
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:23d7adc167f224da7f24
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
1236000000
Grade
4.12
Grade Unit
g/t
Cutoff Grade
6.03
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Total Measured and Indicated resources include 4.12 g/t silver.

Positive factors

  • Silver as a byproduct in total Measured and Indicated resources.

Evidence · table

“4.12”

Context: 1,236

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

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

inferredCopper World · copperTonnes: 309000000Grade: 0.3Grade Unit: %View all details
Link to this fact

Identity

Project
Copper World
Commodity
copper
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:b913fd9af979ba7855ab
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
309000000
Grade
0.3
Grade Unit
%
Cutoff Grade
6.03
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Inferred resources of 309 million tonnes at 0.30% copper represent future growth potential.

Positive factors

  • Significant tonnage of copper in Inferred resources, indicating future potential.

Negative factors

  • Inferred category has lower geological confidence.

Evidence · table

“0.30”

Context: 309

Tags used in scoring

Inferred Resourcenegative

Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.

Why it applies: category is "inferred"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

inferredCopper World · molybdenumTonnes: 309000000Grade: 103Grade Unit: g/tView all details
Link to this fact

Identity

Project
Copper World
Commodity
molybdenum
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:b913fd9af979ba7855ab
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
309000000
Grade
103
Grade Unit
g/t
Cutoff Grade
6.03
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Inferred resources include 103 g/t molybdenum.

Positive factors

  • Molybdenum as a byproduct in Inferred resources.

Negative factors

  • Inferred category has lower geological confidence.

Evidence · table

“103”

Context: 309

Tags used in scoring

Inferred Resourcenegative

Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.

Why it applies: category is "inferred"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

inferredCopper World · goldTonnes: 309000000Grade: 0.012Grade Unit: g/tView all details
Link to this fact

Identity

Project
Copper World
Commodity
gold
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:b913fd9af979ba7855ab
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
309000000
Grade
0.012
Grade Unit
g/t
Cutoff Grade
6.03
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Inferred resources include 0.012 g/t gold.

Positive factors

  • Gold as a byproduct in Inferred resources.

Negative factors

  • Inferred category has lower geological confidence.

Evidence · table

“0.012”

Context: 309

Tags used in scoring

Inferred Resourcenegative

Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.

Why it applies: category is "inferred"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

inferredCopper World · silverTonnes: 309000000Grade: 2.69Grade Unit: g/tView all details
Link to this fact

Identity

Project
Copper World
Commodity
silver
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:b913fd9af979ba7855ab
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
309000000
Grade
2.69
Grade Unit
g/t
Cutoff Grade
6.03
Cutoff Unit
$/ton NSR

Prior Estimate

Resource Date
2026-08-01

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Inferred resources include 2.69 g/t silver.

Positive factors

  • Silver as a byproduct in Inferred resources.

Negative factors

  • Inferred category has lower geological confidence.

Evidence · table

“2.69”

Context: 309

Tags used in scoring

Inferred Resourcenegative

Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.

Why it applies: category is "inferred"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

indicatedCopper World · copperTonnes: 1236000000Grade: 0.4Grade Unit: %View all details
Link to this fact

Identity

Project
Copper World
Commodity
copper
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:23d7adc167f224da7f24
Mining method
open_pit

Resource Data

Category
indicated
Tonnes
1236000000
Grade
0.4
Grade Unit
%

Prior Estimate

Resource Date
2026-08-01
Prior Tonnes
1205000000
Prior Grade
0.42
Prior Contained Metal
5061

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Measured and Indicated resources show a slight tonnage increase but a decrease in grade and contained copper metal compared to the 2023 PFS.

Positive factors

  • Slight increase in M&I tonnage.

Negative factors

  • Slight decrease in M&I contained copper metal.
  • Decrease in average M&I grade.

Evidence · table

“1,236”

Context: Measured and indicated

Tags used in scoring

Indicated Resourcepositive

Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.

Why it applies: category is "indicated"

Cut-off Undisclosednegative

High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff_grade was stated

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

inferredCopper World · copperTonnes: 309000000Grade: 0.3Grade Unit: %View all details
Link to this fact

Identity

Project
Copper World
Commodity
copper
Region
usa_az
Reported Region
Arizona
Ticker
HBM

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Olivier Tavchandjian
Resource group id
resource:b913fd9af979ba7855ab
Mining method
open_pit

Resource Data

Category
inferred
Tonnes
309000000
Grade
0.3
Grade Unit
%

Prior Estimate

Resource Date
2026-08-01
Prior Tonnes
275000000
Prior Grade
0.32
Prior Contained Metal
880

Review

Needs Review
No
Historical
No

Dates

Event date
2026-10-21T00:00:00.000Z

Reasoning: Inferred resources show a 5% increase in contained copper metal, despite a slight grade decrease, highlighting future upside.

Positive factors

  • Increase in Inferred tonnage and contained copper metal, indicating growth potential.

Negative factors

  • Decrease in average Inferred grade.

Evidence · table

“309”

Context: Inferred

Tags used in scoring

Inferred Resourcenegative

Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.

Why it applies: category is "inferred"

Cut-off Undisclosednegative

High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff_grade was stated

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

Grade Declinenegative

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

Why it applies: 0.3 against 0.32 previously

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

PFS-Supportingneutral

Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

DFS-Supportingneutral

Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

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.