Contango Announces Updated Mineral Resource Estimate for Kitsault Valley Project; Indicated Resources Increase 93% to 89.5 Million Silver Equivalent Ounces

Original announcement by orestocks on

Company
Contango Silver and Gold Inc.
Ticker
CTGO
Exchange
Unavailable
Region
Northwest British Columbia's Golden Triangle
Primary commodity
Silver
Secondary commodities
Gold, Copper, Lead, Zinc
Document categories
Resource update
Extracted
2026-09-22 12:32:22 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Contango Silver and Gold Inc. announced an updated Mineral Resource Estimate for its Kitsault Valley Project in British Columbia, showing a 93% increase in Indicated silver equivalent ounces to 89.55 million ounces. The estimate, effective September 11, 2026, integrates new drilling and a revised geological interpretation, providing a stronger foundation for future economic studies. The company plans further MRE updates and an S-K 1300 Initial Assessment in 2027.

Reasoning: The updated MRE shows a substantial 93% increase in Indicated silver equivalent ounces, driven by new drilling and a revised geological interpretation, which significantly de-risks the project. While Inferred resources decreased, the overall confidence in the resource base has improved, setting a strong foundation for future economic studies. The estimate is compliant with SEC S-K 1300 and has QP sign-off, although the QP is not independent.

Positive factors

  • Significant increase in Indicated silver equivalent resources (93%)
  • Improved geological understanding and updated models
  • Comprehensive drill database supporting the estimate
  • QP/CP sign-off and SEC S-K 1300 compliance
  • Clear roadmap for future MRE updates and economic studies

Negative factors

  • Decrease in Inferred resources
  • QP is not independent of the company
  • No Measured Resources or Mineral Reserves reported

Facts used in scoring: 49

Classification and evidence

Cut-off Disclosedpositive

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

Why it applies: A current resource fact retains the disclosed cut-off grade

Resource Updateneutral

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

Why it applies: The source explicitly discloses a revised resource estimate

Evidence · text

“Updated Mineral Resource Estimate”

Extracted facts

Stored fact records: 49. Some facts used in scoring do not have a stored record.

Resource Estimates (49)

indicatedKitsault Valley · silverTonnes: 2140000Grade: 89.14Grade Unit: g/tContained Metal: 6.13Contained Unit: mozView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
silver
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:78cae9213b6afff15bd8
Deposit or zone
Homestake
Mining method
underground

Resource Data

Category
indicated
Tonnes
2140000
Grade
89.14
Grade Unit
g/t
Contained Metal
6.13
Contained Unit
moz
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
483.7
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: This indicated resource for silver at Homestake contributes to the overall increase in indicated resources, showing good grade and confidence.

Positive factors

  • Indicated category provides higher confidence
  • Strong silver grade for an indicated resource

Evidence · table

“89.14”

Context: 2.14

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

indicatedKitsault Valley · goldTonnes: 2140000Grade: 5.63Grade Unit: g/tContained Metal: 387.42Contained Unit: kozView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
gold
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:78cae9213b6afff15bd8
Deposit or zone
Homestake
Mining method
underground

Resource Data

Category
indicated
Tonnes
2140000
Grade
5.63
Grade Unit
g/t
Contained Metal
387.42
Contained Unit
koz
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
483.7
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The indicated gold resource at Homestake shows a very strong grade, contributing positively to the overall resource update.

Positive factors

  • High gold grade for an indicated resource
  • Indicated category provides higher confidence

Evidence · table

“5.63”

Context: 2.14

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

indicatedKitsault Valley · copperTonnes: 2140000Grade: 0.13Grade Unit: %Contained Metal: 6.32Contained Unit: mlbView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
copper
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:78cae9213b6afff15bd8
Deposit or zone
Homestake
Mining method
underground

Resource Data

Category
indicated
Tonnes
2140000
Grade
0.13
Grade Unit
%
Contained Metal
6.32
Contained Unit
mlb
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
483.7
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The indicated copper resource at Homestake is present but at a relatively low grade, likely contributing as a byproduct.

Positive factors

  • Indicated category provides higher confidence

Evidence · table

“0.13”

Context: 2.14

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

indicatedKitsault Valley · leadTonnes: 2140000Grade: 0.13Grade Unit: %Contained Metal: 5.96Contained Unit: mlbView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
lead
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:78cae9213b6afff15bd8
Deposit or zone
Homestake
Mining method
underground

Resource Data

Category
indicated
Tonnes
2140000
Grade
0.13
Grade Unit
%
Contained Metal
5.96
Contained Unit
mlb
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
483.7
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The indicated lead resource at Homestake is present but at a relatively low grade, likely contributing as a byproduct.

Positive factors

  • Indicated category provides higher confidence

Evidence · table

“0.13”

Context: 2.14

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

indicatedKitsault Valley · zincTonnes: 2140000Grade: 0.15Grade Unit: %Contained Metal: 7.02Contained Unit: mlbView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
zinc
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:78cae9213b6afff15bd8
Deposit or zone
Homestake
Mining method
underground

Resource Data

Category
indicated
Tonnes
2140000
Grade
0.15
Grade Unit
%
Contained Metal
7.02
Contained Unit
mlb
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
483.7
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The indicated zinc resource at Homestake is present but at a relatively low grade, likely contributing as a byproduct.

Positive factors

  • Indicated category provides higher confidence

Evidence · table

“0.15”

Context: 2.14

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

indicatedKitsault Valley · silverTonnes: 5520000Grade: 296.1Grade Unit: g/tContained Metal: 52.57Contained Unit: mozView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
silver
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:d5626f4a36f9c251aa19
Deposit or zone
Dolly Varden
Mining method
underground

Resource Data

Category
indicated
Tonnes
5520000
Grade
296.1
Grade Unit
g/t
Contained Metal
52.57
Contained Unit
moz
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The indicated silver resource at Dolly Varden shows a very strong grade and substantial contained metal, contributing significantly to the overall resource increase.

Positive factors

  • High silver grade for an indicated resource
  • Significant contained silver ounces
  • Indicated category provides higher confidence

Evidence · table

“52.57”

Context: 5.52

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

indicatedKitsault Valley · goldTonnes: 5520000Grade: 0.04Grade Unit: g/tContained Metal: 7.29Contained Unit: kozView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
gold
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:d5626f4a36f9c251aa19
Deposit or zone
Dolly Varden
Mining method
underground

Resource Data

Category
indicated
Tonnes
5520000
Grade
0.04
Grade Unit
g/t
Contained Metal
7.29
Contained Unit
koz
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The indicated gold resource at Dolly Varden is very low grade, likely a minor byproduct.

Positive factors

  • Indicated category provides higher confidence

Evidence · table

“7.29”

Context: 5.52

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

indicatedKitsault Valley · copperTonnes: 5520000Grade: 0.03Grade Unit: %Contained Metal: 3.06Contained Unit: mlbView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
copper
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:d5626f4a36f9c251aa19
Deposit or zone
Dolly Varden
Mining method
underground

Resource Data

Category
indicated
Tonnes
5520000
Grade
0.03
Grade Unit
%
Contained Metal
3.06
Contained Unit
mlb
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The indicated copper resource at Dolly Varden is very low grade, likely a minor byproduct.

Positive factors

  • Indicated category provides higher confidence

Evidence · table

“3.06”

Context: 5.52

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

indicatedKitsault Valley · leadTonnes: 5520000Grade: 0.59Grade Unit: %Contained Metal: 72.2Contained Unit: mlbView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
lead
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:d5626f4a36f9c251aa19
Deposit or zone
Dolly Varden
Mining method
underground

Resource Data

Category
indicated
Tonnes
5520000
Grade
0.59
Grade Unit
%
Contained Metal
72.2
Contained Unit
mlb
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The indicated lead resource at Dolly Varden shows a moderate grade and contained metal, contributing to the polymetallic nature of the project.

Positive factors

  • Indicated category provides higher confidence
  • Moderate contained lead ounces

Evidence · table

“72.20”

Context: 5.52

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

indicatedKitsault Valley · zincTonnes: 5520000Grade: 0.67Grade Unit: %Contained Metal: 81.83Contained Unit: mlbView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
zinc
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:d5626f4a36f9c251aa19
Deposit or zone
Dolly Varden
Mining method
underground

Resource Data

Category
indicated
Tonnes
5520000
Grade
0.67
Grade Unit
%
Contained Metal
81.83
Contained Unit
mlb
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The indicated zinc resource at Dolly Varden shows a moderate grade and contained metal, contributing to the polymetallic nature of the project.

Positive factors

  • Indicated category provides higher confidence
  • Moderate contained zinc ounces

Evidence · table

“81.83”

Context: 5.52

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

indicatedKitsault Valley · silverTonnes: 7660000Grade: 238.34Grade Unit: g/tContained Metal: 58.7Contained Unit: mozView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
silver
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:966180cf9a7282bd6762
Deposit or zone
Project Total
Mining method
underground

Resource Data

Category
indicated
Tonnes
7660000
Grade
238.34
Grade Unit
g/t
Contained Metal
58.7
Contained Unit
moz
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11
Prior Tonnes
4150000

Metal Equivalent

Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The total indicated silver resource shows a very strong grade and substantial contained metal, with a significant increase from the prior estimate, indicating strong project growth and de-risking.

Positive factors

  • High silver grade for an indicated resource
  • Significant contained silver ounces
  • Indicated category provides higher confidence
  • Tonnage Growth
  • Contained Metal Growth

Evidence · table

“58.70”

Context: 7.66

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

Tonnage Growthpositive

Tonnage increase reaching the strong tier vs prior estimate, with grade maintained or improved.

Why it applies: 7660000 against 4150000 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

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

indicatedKitsault Valley · goldTonnes: 7660000Grade: 1.6Grade Unit: g/tContained Metal: 394.7Contained Unit: kozView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
gold
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:966180cf9a7282bd6762
Deposit or zone
Project Total
Mining method
underground

Resource Data

Category
indicated
Tonnes
7660000
Grade
1.6
Grade Unit
g/t
Contained Metal
394.7
Contained Unit
koz
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The total indicated gold resource shows a moderate grade, contributing to the overall polymetallic resource.

Positive factors

  • Indicated category provides higher confidence
  • Moderate gold grade

Evidence · table

“394.70”

Context: 7.66

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

indicatedKitsault Valley · copperTonnes: 7660000Grade: 0.06Grade Unit: %Contained Metal: 9.38Contained Unit: mlbView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
copper
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:966180cf9a7282bd6762
Deposit or zone
Project Total
Mining method
underground

Resource Data

Category
indicated
Tonnes
7660000
Grade
0.06
Grade Unit
%
Contained Metal
9.38
Contained Unit
mlb
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The total indicated copper resource is low grade, likely a minor byproduct.

Positive factors

  • Indicated category provides higher confidence

Evidence · table

“9.38”

Context: 7.66

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

indicatedKitsault Valley · leadTonnes: 7660000Grade: 0.46Grade Unit: %Contained Metal: 78.16Contained Unit: mlbView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
lead
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:966180cf9a7282bd6762
Deposit or zone
Project Total
Mining method
underground

Resource Data

Category
indicated
Tonnes
7660000
Grade
0.46
Grade Unit
%
Contained Metal
78.16
Contained Unit
mlb
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The total indicated lead resource shows a moderate grade and contained metal, contributing to the polymetallic nature of the project.

Positive factors

  • Indicated category provides higher confidence
  • Moderate contained lead ounces

Evidence · table

“78.16”

Context: 7.66

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

indicatedKitsault Valley · zincTonnes: 7660000Grade: 0.53Grade Unit: %Contained Metal: 88.85Contained Unit: mlbView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
zinc
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:966180cf9a7282bd6762
Deposit or zone
Project Total
Mining method
underground

Resource Data

Category
indicated
Tonnes
7660000
Grade
0.53
Grade Unit
%
Contained Metal
88.85
Contained Unit
mlb
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The total indicated zinc resource shows a moderate grade and contained metal, contributing to the polymetallic nature of the project.

Positive factors

  • Indicated category provides higher confidence
  • Moderate contained zinc ounces

Evidence · table

“88.85”

Context: 7.66

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

inferredKitsault Valley · silverTonnes: 4600000Grade: 53.91Grade Unit: g/tContained Metal: 7.97Contained Unit: mozView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
silver
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:fdfc2944ae823ed90ba0
Deposit or zone
Homestake
Mining method
underground

Resource Data

Category
inferred
Tonnes
4600000
Grade
53.91
Grade Unit
g/t
Contained Metal
7.97
Contained Unit
moz
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
328.3
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The inferred silver resource at Homestake provides potential upside but with lower geological confidence.

Negative factors

  • Inferred category has lower confidence

Evidence · table

“53.91”

Context: 4.60

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

inferredKitsault Valley · goldTonnes: 4600000Grade: 4.17Grade Unit: g/tContained Metal: 615.82Contained Unit: kozView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
gold
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:fdfc2944ae823ed90ba0
Deposit or zone
Homestake
Mining method
underground

Resource Data

Category
inferred
Tonnes
4600000
Grade
4.17
Grade Unit
g/t
Contained Metal
615.82
Contained Unit
koz
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
328.3
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The inferred gold resource at Homestake shows a moderate grade, providing potential upside but with lower geological confidence.

Positive factors

  • Moderate gold grade

Negative factors

  • Inferred category has lower confidence

Evidence · table

“4.17”

Context: 4.60

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

inferredKitsault Valley · copperTonnes: 4600000Grade: 0.04Grade Unit: %Contained Metal: 4.24Contained Unit: mlbView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
copper
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:fdfc2944ae823ed90ba0
Deposit or zone
Homestake
Mining method
underground

Resource Data

Category
inferred
Tonnes
4600000
Grade
0.04
Grade Unit
%
Contained Metal
4.24
Contained Unit
mlb
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
328.3
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The inferred copper resource at Homestake is very low grade, likely a minor byproduct with lower confidence.

Negative factors

  • Inferred category has lower confidence

Evidence · table

“0.04”

Context: 4.60

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

inferredKitsault Valley · leadTonnes: 4600000Grade: 0.17Grade Unit: %Contained Metal: 16.86Contained Unit: mlbView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
lead
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:fdfc2944ae823ed90ba0
Deposit or zone
Homestake
Mining method
underground

Resource Data

Category
inferred
Tonnes
4600000
Grade
0.17
Grade Unit
%
Contained Metal
16.86
Contained Unit
mlb
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
328.3
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The inferred lead resource at Homestake is present but at a relatively low grade, likely contributing as a byproduct with lower confidence.

Negative factors

  • Inferred category has lower confidence

Evidence · table

“0.17”

Context: 4.60

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

inferredKitsault Valley · zincTonnes: 4600000Grade: 0.15Grade Unit: %Contained Metal: 14.69Contained Unit: mlbView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
zinc
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:fdfc2944ae823ed90ba0
Deposit or zone
Homestake
Mining method
underground

Resource Data

Category
inferred
Tonnes
4600000
Grade
0.15
Grade Unit
%
Contained Metal
14.69
Contained Unit
mlb
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
328.3
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The inferred zinc resource at Homestake is present but at a relatively low grade, likely contributing as a byproduct with lower confidence.

Negative factors

  • Inferred category has lower confidence

Evidence · table

“0.15”

Context: 4.60

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

inferredKitsault Valley · silverTonnes: 1710000Grade: 269.91Grade Unit: g/tContained Metal: 14.84Contained Unit: mozView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
silver
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:cf2f93b38fb165f7b8f6
Deposit or zone
Dolly Varden
Mining method
underground

Resource Data

Category
inferred
Tonnes
1710000
Grade
269.91
Grade Unit
g/t
Contained Metal
14.84
Contained Unit
moz
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The inferred silver resource at Dolly Varden shows a strong grade, providing potential upside but with lower geological confidence.

Positive factors

  • High silver grade

Negative factors

  • Inferred category has lower confidence

Evidence · table

“14.84”

Context: 1.71

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

inferredKitsault Valley · goldTonnes: 1710000Grade: 0.1Grade Unit: g/tContained Metal: 4.99Contained Unit: kozView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
gold
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:cf2f93b38fb165f7b8f6
Deposit or zone
Dolly Varden
Mining method
underground

Resource Data

Category
inferred
Tonnes
1710000
Grade
0.1
Grade Unit
g/t
Contained Metal
4.99
Contained Unit
koz
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The inferred gold resource at Dolly Varden is very low grade, likely a minor byproduct with lower confidence.

Negative factors

  • Inferred category has lower confidence

Evidence · table

“4.99”

Context: 1.71

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

inferredKitsault Valley · copperTonnes: 1710000Grade: 0.05Grade Unit: %Contained Metal: 1.8Contained Unit: mlbView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
copper
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:cf2f93b38fb165f7b8f6
Deposit or zone
Dolly Varden
Mining method
underground

Resource Data

Category
inferred
Tonnes
1710000
Grade
0.05
Grade Unit
%
Contained Metal
1.8
Contained Unit
mlb
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The inferred copper resource at Dolly Varden is very low grade, likely a minor byproduct with lower confidence.

Negative factors

  • Inferred category has lower confidence

Evidence · table

“1.80”

Context: 1.71

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

inferredKitsault Valley · leadTonnes: 1710000Grade: 0.62Grade Unit: %Contained Metal: 23.38Contained Unit: mlbView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
lead
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:cf2f93b38fb165f7b8f6
Deposit or zone
Dolly Varden
Mining method
underground

Resource Data

Category
inferred
Tonnes
1710000
Grade
0.62
Grade Unit
%
Contained Metal
23.38
Contained Unit
mlb
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The inferred lead resource at Dolly Varden shows a moderate grade and contained metal, providing potential upside but with lower confidence.

Positive factors

  • Moderate contained lead ounces

Negative factors

  • Inferred category has lower confidence

Evidence · table

“23.38”

Context: 1.71

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

inferredKitsault Valley · zincTonnes: 1710000Grade: 0.9Grade Unit: %Contained Metal: 33.92Contained Unit: mlbView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
zinc
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:cf2f93b38fb165f7b8f6
Deposit or zone
Dolly Varden
Mining method
underground

Resource Data

Category
inferred
Tonnes
1710000
Grade
0.9
Grade Unit
%
Contained Metal
33.92
Contained Unit
mlb
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The inferred zinc resource at Dolly Varden shows a moderate grade and contained metal, providing potential upside but with lower confidence.

Positive factors

  • Moderate contained zinc ounces

Negative factors

  • Inferred category has lower confidence

Evidence · table

“33.92”

Context: 1.71

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

inferredKitsault Valley · silverTonnes: 6310000Grade: 112.5Grade Unit: g/tContained Metal: 22.8Contained Unit: mozView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
silver
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:d83b908f516d9315a498
Deposit or zone
Project Total
Mining method
underground

Resource Data

Category
inferred
Tonnes
6310000
Grade
112.5
Grade Unit
g/t
Contained Metal
22.8
Contained Unit
moz
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11
Prior Tonnes
6830000
Prior Contained Metal
86.73

Metal Equivalent

Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The total inferred silver resource shows a decrease in both tonnage and contained metal compared to the prior estimate, indicating a downgrade in the inferred category.

Negative factors

  • Inferred category has lower confidence
  • Tonnage Decline
  • Contained Metal Decline

Evidence · table

“22.80”

Context: 6.31

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

Tonnage Declinenegative

Resource tonnage decreased vs prior estimate — pit optimization removed marginal material or geological model revised down.

Why it applies: 6310000 against 6830000 previously

Contained Metal Declinenegative

Contained metal decreased vs prior despite tonnage growth — grade dilution exceeds volume gain.

Why it applies: 22.8 against 86.73 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

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

inferredKitsault Valley · goldTonnes: 6310000Grade: 3.06Grade Unit: g/tContained Metal: 620.82Contained Unit: kozView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
gold
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:d83b908f516d9315a498
Deposit or zone
Project Total
Mining method
underground

Resource Data

Category
inferred
Tonnes
6310000
Grade
3.06
Grade Unit
g/t
Contained Metal
620.82
Contained Unit
koz
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The total inferred gold resource shows a moderate grade, providing potential upside but with lower geological confidence.

Positive factors

  • Moderate gold grade

Negative factors

  • Inferred category has lower confidence

Evidence · table

“620.82”

Context: 6.31

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

inferredKitsault Valley · copperTonnes: 6310000Grade: 0.04Grade Unit: %Contained Metal: 6.04Contained Unit: mlbView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
copper
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:d83b908f516d9315a498
Deposit or zone
Project Total
Mining method
underground

Resource Data

Category
inferred
Tonnes
6310000
Grade
0.04
Grade Unit
%
Contained Metal
6.04
Contained Unit
mlb
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The total inferred copper resource is low grade, likely a minor byproduct with lower confidence.

Negative factors

  • Inferred category has lower confidence

Evidence · table

“6.04”

Context: 6.31

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

inferredKitsault Valley · leadTonnes: 6310000Grade: 0.29Grade Unit: %Contained Metal: 40.24Contained Unit: mlbView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
lead
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:d83b908f516d9315a498
Deposit or zone
Project Total
Mining method
underground

Resource Data

Category
inferred
Tonnes
6310000
Grade
0.29
Grade Unit
%
Contained Metal
40.24
Contained Unit
mlb
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The total inferred lead resource shows a moderate grade and contained metal, providing potential upside but with lower confidence.

Negative factors

  • Inferred category has lower confidence

Evidence · table

“40.24”

Context: 6.31

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

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

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

inferredKitsault Valley · silverTonnes: 238340000Grade: 1.6Grade Unit: g/tView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
silver
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:3a84a7e132015a06e322
Mining method
underground

Resource Data

Category
inferred
Tonnes
238340000
Grade
1.6
Grade Unit
g/t
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
89.55
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The inferred silver resource at Homestake provides potential upside but with lower geological confidence. (Expanded from multi-commodity resource table for completeness.)

Negative factors

  • Inferred category has lower confidence

Evidence · table

“1.60”

Context: 238.34

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

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

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

inferredKitsault Valley · goldTonnes: 238340000Grade: 0.06Grade Unit: g/tView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
gold
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:3a84a7e132015a06e322
Mining method
underground

Resource Data

Category
inferred
Tonnes
238340000
Grade
0.06
Grade Unit
g/t
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
89.55
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The inferred silver resource at Homestake provides potential upside but with lower geological confidence. (Expanded from multi-commodity resource table for completeness.)

Negative factors

  • Inferred category has lower confidence

Evidence · table

“0.06”

Context: 238.34

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

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

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

inferredKitsault Valley · copperTonnes: 238340000Grade: 0.53Grade Unit: %View all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
copper
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:3a84a7e132015a06e322
Mining method
underground

Resource Data

Category
inferred
Tonnes
238340000
Grade
0.53
Grade Unit
%
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
89.55
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The inferred silver resource at Homestake provides potential upside but with lower geological confidence. (Expanded from multi-commodity resource table for completeness.)

Negative factors

  • Inferred category has lower confidence

Evidence · table

“0.53”

Context: 238.34

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

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

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

inferredKitsault Valley · zincTonnes: 238340000Grade: 0.46Grade Unit: %View all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
zinc
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:3a84a7e132015a06e322
Mining method
underground

Resource Data

Category
inferred
Tonnes
238340000
Grade
0.46
Grade Unit
%
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
89.55
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The inferred silver resource at Homestake provides potential upside but with lower geological confidence. (Expanded from multi-commodity resource table for completeness.)

Negative factors

  • Inferred category has lower confidence

Evidence · table

“0.46”

Context: 238.34

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

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

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

inferredKitsault Valley · leadTonnes: 238340000Grade: 363Grade Unit: %View all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
lead
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:3a84a7e132015a06e322
Mining method
underground

Resource Data

Category
inferred
Tonnes
238340000
Grade
363
Grade Unit
%
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
89.55
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The inferred silver resource at Homestake provides potential upside but with lower geological confidence. (Expanded from multi-commodity resource table for completeness.)

Negative factors

  • Inferred category has lower confidence

Evidence · table

“363.0”

Context: 238.34

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

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

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

inferredKitsault Valley · silverTonnes: 112500000Grade: 3.06Grade Unit: g/tView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
silver
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:7519063783dbeff07d30
Mining method
underground

Resource Data

Category
inferred
Tonnes
112500000
Grade
3.06
Grade Unit
g/t
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
64.92
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The inferred silver resource at Homestake provides potential upside but with lower geological confidence. (Expanded from multi-commodity resource table for completeness.)

Negative factors

  • Inferred category has lower confidence

Evidence · table

“3.06”

Context: 112.50

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

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

inferredKitsault Valley · goldTonnes: 112500000Grade: 0.04Grade Unit: g/tView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
gold
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:7519063783dbeff07d30
Mining method
underground

Resource Data

Category
inferred
Tonnes
112500000
Grade
0.04
Grade Unit
g/t
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
64.92
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The inferred silver resource at Homestake provides potential upside but with lower geological confidence. (Expanded from multi-commodity resource table for completeness.)

Negative factors

  • Inferred category has lower confidence

Evidence · table

“0.04”

Context: 112.50

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

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

inferredKitsault Valley · copperTonnes: 112500000Grade: 0.35Grade Unit: %Historical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
copper
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:7519063783dbeff07d30
Mining method
underground

Resource Data

Category
inferred
Tonnes
112500000
Grade
0.35
Grade Unit
%
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
64.92
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
Yes
Review Reason
historical_restatement
Historical
Yes

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The inferred silver resource at Homestake provides potential upside but with lower geological confidence. (Expanded from multi-commodity resource table for completeness.)

Negative factors

  • Inferred category has lower confidence

Evidence · table

“0.35”

Context: 112.50

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

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

inferredKitsault Valley · zincTonnes: 112500000Grade: 0.29Grade Unit: %Historical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
zinc
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:7519063783dbeff07d30
Mining method
underground

Resource Data

Category
inferred
Tonnes
112500000
Grade
0.29
Grade Unit
%
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
64.92
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
Yes
Review Reason
historical_restatement
Historical
Yes

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The inferred silver resource at Homestake provides potential upside but with lower geological confidence. (Expanded from multi-commodity resource table for completeness.)

Negative factors

  • Inferred category has lower confidence

Evidence · table

“0.29”

Context: 112.50

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

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

inferredKitsault Valley · leadTonnes: 112500000Grade: 320.26Grade Unit: %Historical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
lead
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:7519063783dbeff07d30
Mining method
underground

Resource Data

Category
inferred
Tonnes
112500000
Grade
320.26
Grade Unit
%
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
64.92
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
Yes
Review Reason
historical_restatement
Historical
Yes

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The inferred silver resource at Homestake provides potential upside but with lower geological confidence. (Expanded from multi-commodity resource table for completeness.)

Negative factors

  • Inferred category has lower confidence

Evidence · table

“320.26”

Context: 112.50

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

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

indicatedKitsault Valley · silverTonnes: 2140000Grade: 89.14Grade Unit: g/tView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
silver
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:78cae9213b6afff15bd8
Deposit or zone
Homestake
Mining method
underground

Resource Data

Category
indicated
Tonnes
2140000
Grade
89.14
Grade Unit
g/t
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
483.7
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: This indicated resource for silver at Homestake contributes to the overall increase in indicated resources, showing good grade and confidence. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • Indicated category provides higher confidence
  • Strong silver grade for an indicated resource

Evidence · table

“89.14”

Context: 2.14

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

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

indicatedKitsault Valley · goldTonnes: 2140000Grade: 5.63Grade Unit: g/tView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
gold
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:78cae9213b6afff15bd8
Deposit or zone
Homestake
Mining method
underground

Resource Data

Category
indicated
Tonnes
2140000
Grade
5.63
Grade Unit
g/t
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
483.7
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: This indicated resource for silver at Homestake contributes to the overall increase in indicated resources, showing good grade and confidence. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • Indicated category provides higher confidence
  • Strong silver grade for an indicated resource

Evidence · table

“5.63”

Context: 2.14

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

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

indicatedKitsault Valley · copperTonnes: 2140000Grade: 0.13Grade Unit: %View all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
copper
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:78cae9213b6afff15bd8
Deposit or zone
Homestake
Mining method
underground

Resource Data

Category
indicated
Tonnes
2140000
Grade
0.13
Grade Unit
%
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
483.7
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: This indicated resource for silver at Homestake contributes to the overall increase in indicated resources, showing good grade and confidence. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • Indicated category provides higher confidence
  • Strong silver grade for an indicated resource

Evidence · table

“0.13”

Context: 2.14

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

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

indicatedKitsault Valley · zincTonnes: 2140000Grade: 0.15Grade Unit: %View all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
zinc
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:78cae9213b6afff15bd8
Deposit or zone
Homestake
Mining method
underground

Resource Data

Category
indicated
Tonnes
2140000
Grade
0.15
Grade Unit
%
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
483.7
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: This indicated resource for silver at Homestake contributes to the overall increase in indicated resources, showing good grade and confidence. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • Indicated category provides higher confidence
  • Strong silver grade for an indicated resource

Evidence · table

“0.15”

Context: 2.14

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

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

indicatedKitsault Valley · leadTonnes: 2140000Grade: 0.13Grade Unit: %View all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
lead
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:78cae9213b6afff15bd8
Deposit or zone
Homestake
Mining method
underground

Resource Data

Category
indicated
Tonnes
2140000
Grade
0.13
Grade Unit
%
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
483.7
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: This indicated resource for silver at Homestake contributes to the overall increase in indicated resources, showing good grade and confidence. (Expanded from multi-commodity resource table for completeness.)

Positive factors

  • Indicated category provides higher confidence
  • Strong silver grade for an indicated resource

Evidence · table

“0.13”

Context: 2.14

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

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

inferredKitsault Valley · silverTonnes: 4600000Grade: 53.91Grade Unit: g/tView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
silver
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:fdfc2944ae823ed90ba0
Deposit or zone
Homestake
Mining method
underground

Resource Data

Category
inferred
Tonnes
4600000
Grade
53.91
Grade Unit
g/t
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
328.3
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The inferred silver resource at Homestake provides potential upside but with lower geological confidence. (Expanded from multi-commodity resource table for completeness.)

Negative factors

  • Inferred category has lower confidence

Evidence · table

“53.91”

Context: 4.60

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

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

inferredKitsault Valley · goldTonnes: 4600000Grade: 4.17Grade Unit: g/tView all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
gold
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:fdfc2944ae823ed90ba0
Deposit or zone
Homestake
Mining method
underground

Resource Data

Category
inferred
Tonnes
4600000
Grade
4.17
Grade Unit
g/t
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
328.3
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The inferred silver resource at Homestake provides potential upside but with lower geological confidence. (Expanded from multi-commodity resource table for completeness.)

Negative factors

  • Inferred category has lower confidence

Evidence · table

“4.17”

Context: 4.60

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

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

inferredKitsault Valley · copperTonnes: 4600000Grade: 0.04Grade Unit: %View all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
copper
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:fdfc2944ae823ed90ba0
Deposit or zone
Homestake
Mining method
underground

Resource Data

Category
inferred
Tonnes
4600000
Grade
0.04
Grade Unit
%
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
328.3
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The inferred silver resource at Homestake provides potential upside but with lower geological confidence. (Expanded from multi-commodity resource table for completeness.)

Negative factors

  • Inferred category has lower confidence

Evidence · table

“0.04”

Context: 4.60

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

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

inferredKitsault Valley · zincTonnes: 4600000Grade: 0.15Grade Unit: %View all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
zinc
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:fdfc2944ae823ed90ba0
Deposit or zone
Homestake
Mining method
underground

Resource Data

Category
inferred
Tonnes
4600000
Grade
0.15
Grade Unit
%
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
328.3
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The inferred silver resource at Homestake provides potential upside but with lower geological confidence. (Expanded from multi-commodity resource table for completeness.)

Negative factors

  • Inferred category has lower confidence

Evidence · table

“0.15”

Context: 4.60

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

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

inferredKitsault Valley · leadTonnes: 4600000Grade: 0.17Grade Unit: %View all details
Link to this fact

Identity

Project
Kitsault Valley
Commodity
lead
Region
canada_bc
Reported Region
Northwest British Columbia's Golden Triangle
Ticker
CTGO

Resource scope

Estimate type
resource
Effective date
2026-09-11T00:00:00.000Z
Reporting standards
ni_43_101, sec_sk1300
QP Signed
Yes
Qualified person names
Dave Larimer
Resource group id
resource:fdfc2944ae823ed90ba0
Deposit or zone
Homestake
Mining method
underground

Resource Data

Category
inferred
Tonnes
4600000
Grade
0.17
Grade Unit
%
Cutoff Grade
132
Cutoff Unit
g/t AgEq

Prior Estimate

Resource Date
2026-09-11

Metal Equivalent

Metal Eq. Grade
328.3
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Location

CRS
NAD83 / UTM Zone 9N

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-22T00:00:00.000Z

Reasoning: The inferred silver resource at Homestake provides potential upside but with lower geological confidence. (Expanded from multi-commodity resource table for completeness.)

Negative factors

  • Inferred category has lower confidence

Evidence · table

“0.17”

Context: 4.60

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

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.