Thunder Mountain Gold, Inc. Updated 43-101 Mineral Resource Estimate at South Mountain Shows Significant Increase

Original announcement by tmx on

Company
Thunder Mountain Gold, Inc.
Ticker
THM
Exchange
TSX
Region
Idaho, U.S.A.
Primary commodity
Zinc
Secondary commodities
Silver, Gold, Copper, Lead
Document categories
Resource update
Extracted
2026-09-15 03:10:37 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Thunder Mountain Gold, Inc. announced an updated NI 43-101 Mineral Resource Estimate for its South Mountain Project in Idaho, effective October 16, 2023. The estimate reports a 7.7% increase in Measured & Indicated tonnage and a 15.1% increase in Inferred tonnage, with significant growth in contained zinc, silver, gold, and copper. The DMEA Zone was extended by 250 feet down-dip and remains open, confirming the project's continued high-grade mineralization.

Reasoning: The updated NI 43-101 Mineral Resource Estimate for the South Mountain Project shows substantial growth in both Measured & Indicated and Inferred categories across multiple high-value commodities, maintaining high grades and extending a key mineralized zone, all prepared to a high reporting standard.

Positive factors

  • Significant increase in Measured & Indicated tonnage (7.7%) and Inferred tonnage (15.1%)
  • Significant increase in contained zinc, silver, gold, and copper
  • High-grade mineralization maintained
  • DMEA Zone extended by 250 feet and remains open
  • NI 43-101 compliant estimate by independent firm
  • Qualified Person (QP) sign-off
  • Detailed disclosure of metal equivalent assumptions and cut-off grade

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

Facts used in scoring: 45

Classification and evidence

NI 43-101 Compliantpositive

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

Why it applies: The resource estimate was prepared in accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects ("NI-43-101").

Evidence · text

“prepared in accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects ("NI-43-101")”

QP/CP Signedpositive

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

Why it applies: Mr. Richard A. Schwering, SME-RM, P.G., of Hard Rock Consulting, LLC. is the QP for the estimate and is responsible for the South Mountain Project Mineral Resource Estimate.

Evidence · text

“The QP for the estimate Mr. Richard A. Schwering, SME-RM, P.G., of Hard Rock Consulting, LLC. is independent of South Mountain Mining, LLC.”

Tonnage Growthpositive

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

Why it applies: The Measured & Indicated tonnage increased by 7.7% and the Inferred tonnage increased by 15.1% from the previous 2021 MRE.

Evidence · text

“7.7% increase to the Measured & Indicated tonnage... 15.1% increase in the Inferred tonnage”

Contained Metal Growthpositive

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

Why it applies: The update includes a significant increase in contained zinc, silver, gold, and copper, with specific increases of 14% in Inferred zinc and silver pounds.

Evidence · text

“significant increase in zinc, silver, gold, and copper. 15.1% increase in the Inferred tonnage, including a 14% increase in zinc and silver.”

Cut-off Disclosedpositive

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

Why it applies: The mineral resource is reported at an underground mining cut-off of $97.50 U.S. Net Smelter Return ("NSR").

Evidence · text

“The mineral resource is reported at an underground mining cut-off of $97.50 U.S. Net Smelter Return ("NSR")”

Underground Miningneutral · Story-specific tag

No canonical definition is currently available.

Why it applies: The resource is reported at an underground mining cut-off of $97.50 U.S. Net Smelter Return ("NSR").

Evidence · text

“The mineral resource is reported at an underground mining cut-off of $97.50 U.S. Net Smelter Return ("NSR")”

Resource Updateneutral

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

Why it applies: The document is titled "Updated 43-101 Mineral Resource Estimate" and describes a newly filed MRE incorporating recent drilling results.

Evidence · text

“Updated 43-101 Mineral Resource Estimate at South Mountain Shows Significant Increase”

Multi-Domain Testedpositive · Story-specific tag

Variability across ore domains (oxide, transition, fresh) has been addressed.

Why it applies: The resource estimate provides details for two distinct metallurgical domains: Massive Sulfide Type and Skarn Type.

Evidence · table

“Massive Sulfide Type”

Context: Metallurgical Domain Classification

Extracted facts

Stored fact records: 45. Some facts used in scoring do not have a stored record.

Resource Estimates (45)

measuredSouth Mountain Project · zincTonnes: 48988Grade: 11.51Grade Unit: %Contained Metal: 12300000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
zinc
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:0080e8210acd07813441
Deposit or zone
Massive Sulfide Type
Mining method
underground

Resource Data

Category
measured
Tonnes
48988
Grade
11.51
Grade Unit
%
Contained Metal
12300000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: High-grade zinc in the Measured category for the Massive Sulfide domain contributes to the overall resource increase and confidence.

Positive factors

  • High-grade zinc in Measured category
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“11.51”

Context: 54,000

Tags used in scoring

Measured Resourcepositive

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

Why it applies: category is "measured"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

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

Why it applies: reporting_standards includes ni_43_101

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

measuredSouth Mountain Project · silverTonnes: 48988Grade: 3.62Grade Unit: t. oz/ sh. TonContained Metal: 194000Contained Unit: t. ozView all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
silver
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:0080e8210acd07813441
Deposit or zone
Massive Sulfide Type
Mining method
underground

Resource Data

Category
measured
Tonnes
48988
Grade
3.62
Grade Unit
t. oz/ sh. Ton
Contained Metal
194000
Contained Unit
t. oz
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Good silver grade in the Measured category for the Massive Sulfide domain adds to the project's polymetallic value.

Positive factors

  • Significant silver grade in Measured category
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“3.62”

Context: 54,000

Tags used in scoring

Measured Resourcepositive

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

Why it applies: category is "measured"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

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

Why it applies: reporting_standards includes ni_43_101

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

measuredSouth Mountain Project · goldTonnes: 48988Grade: 0.07Grade Unit: t. oz/ sh. TonContained Metal: 3800Contained Unit: t. ozView all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
gold
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:0080e8210acd07813441
Deposit or zone
Massive Sulfide Type
Mining method
underground

Resource Data

Category
measured
Tonnes
48988
Grade
0.07
Grade Unit
t. oz/ sh. Ton
Contained Metal
3800
Contained Unit
t. oz
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Gold grade in the Measured category for the Massive Sulfide domain adds to the polymetallic nature of the resource.

Positive factors

  • Gold contribution in Measured category
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“0.070”

Context: 54,000

Tags used in scoring

Measured Resourcepositive

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

Why it applies: category is "measured"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

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

Why it applies: reporting_standards includes ni_43_101

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

measuredSouth Mountain Project · copperTonnes: 48988Grade: 0.45Grade Unit: %Contained Metal: 500000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
copper
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:0080e8210acd07813441
Deposit or zone
Massive Sulfide Type
Mining method
underground

Resource Data

Category
measured
Tonnes
48988
Grade
0.45
Grade Unit
%
Contained Metal
500000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Copper grade in the Measured category for the Massive Sulfide domain enhances the polymetallic value of the resource.

Positive factors

  • Copper contribution in Measured category
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“0.45”

Context: 54,000

Tags used in scoring

Measured Resourcepositive

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

Why it applies: category is "measured"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

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

Why it applies: reporting_standards includes ni_43_101

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

measuredSouth Mountain Project · leadTonnes: 48988Grade: 0.79Grade Unit: %Contained Metal: 850000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
lead
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:0080e8210acd07813441
Deposit or zone
Massive Sulfide Type
Mining method
underground

Resource Data

Category
measured
Tonnes
48988
Grade
0.79
Grade Unit
%
Contained Metal
850000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Lead grade in the Measured category for the Massive Sulfide domain adds to the polymetallic nature of the resource.

Positive factors

  • Lead contribution in Measured category
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“0.79”

Context: 54,000

Tags used in scoring

Measured Resourcepositive

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

Why it applies: category is "measured"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

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

Why it applies: reporting_standards includes ni_43_101

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

indicatedSouth Mountain Project · zincTonnes: 110656Grade: 11.15Grade Unit: %Contained Metal: 27300000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
zinc
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:7c1ad4054b4566a3098f
Deposit or zone
Massive Sulfide Type
Mining method
underground

Resource Data

Category
indicated
Tonnes
110656
Grade
11.15
Grade Unit
%
Contained Metal
27300000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: High-grade zinc in the Indicated category for the Massive Sulfide domain contributes significantly to the overall resource.

Positive factors

  • High-grade zinc in Indicated category
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“11.15”

Context: 122,000

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

indicatedSouth Mountain Project · silverTonnes: 110656Grade: 4.74Grade Unit: t. oz/ sh. TonContained Metal: 580000Contained Unit: t. ozView all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
silver
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:7c1ad4054b4566a3098f
Deposit or zone
Massive Sulfide Type
Mining method
underground

Resource Data

Category
indicated
Tonnes
110656
Grade
4.74
Grade Unit
t. oz/ sh. Ton
Contained Metal
580000
Contained Unit
t. oz
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Good silver grade in the Indicated category for the Massive Sulfide domain adds to the project's polymetallic value.

Positive factors

  • Significant silver grade in Indicated category
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“4.74”

Context: 122,000

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

indicatedSouth Mountain Project · goldTonnes: 110656Grade: 0.074Grade Unit: t. oz/ sh. TonContained Metal: 9100Contained Unit: t. ozView all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
gold
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:7c1ad4054b4566a3098f
Deposit or zone
Massive Sulfide Type
Mining method
underground

Resource Data

Category
indicated
Tonnes
110656
Grade
0.074
Grade Unit
t. oz/ sh. Ton
Contained Metal
9100
Contained Unit
t. oz
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Gold grade in the Indicated category for the Massive Sulfide domain adds to the polymetallic nature of the resource.

Positive factors

  • Gold contribution in Indicated category
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“0.074”

Context: 122,000

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

indicatedSouth Mountain Project · copperTonnes: 110656Grade: 0.55Grade Unit: %Contained Metal: 1300000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
copper
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:7c1ad4054b4566a3098f
Deposit or zone
Massive Sulfide Type
Mining method
underground

Resource Data

Category
indicated
Tonnes
110656
Grade
0.55
Grade Unit
%
Contained Metal
1300000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Copper grade in the Indicated category for the Massive Sulfide domain enhances the polymetallic value of the resource.

Positive factors

  • Copper contribution in Indicated category
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“0.55”

Context: 122,000

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

indicatedSouth Mountain Project · leadTonnes: 110656Grade: 1.32Grade Unit: %Contained Metal: 3240000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
lead
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:7c1ad4054b4566a3098f
Deposit or zone
Massive Sulfide Type
Mining method
underground

Resource Data

Category
indicated
Tonnes
110656
Grade
1.32
Grade Unit
%
Contained Metal
3240000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Lead grade in the Indicated category for the Massive Sulfide domain adds to the polymetallic nature of the resource.

Positive factors

  • Lead contribution in Indicated category
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“1.32”

Context: 122,000

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

inferredSouth Mountain Project · zincTonnes: 787400Grade: 8.25Grade Unit: %Contained Metal: 143200000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
zinc
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:a0605ac6a3482751e154
Deposit or zone
Massive Sulfide Type
Mining method
underground

Resource Data

Category
inferred
Tonnes
787400
Grade
8.25
Grade Unit
%
Contained Metal
143200000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Significant zinc tonnage in the Inferred category for the Massive Sulfide domain provides substantial future potential.

Positive factors

  • Large tonnage of zinc in Inferred category
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“8.25”

Context: 868,000

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

inferredSouth Mountain Project · silverTonnes: 787400Grade: 5.96Grade Unit: t. oz/ sh. TonContained Metal: 5177000Contained Unit: t. ozView all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
silver
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:a0605ac6a3482751e154
Deposit or zone
Massive Sulfide Type
Mining method
underground

Resource Data

Category
inferred
Tonnes
787400
Grade
5.96
Grade Unit
t. oz/ sh. Ton
Contained Metal
5177000
Contained Unit
t. oz
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: High silver grade and substantial contained metal in the Inferred category for the Massive Sulfide domain adds significant future value.

Positive factors

  • Significant silver grade and contained metal in Inferred category
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“5.96”

Context: 868,000

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

inferredSouth Mountain Project · goldTonnes: 787400Grade: 0.04Grade Unit: t. oz/ sh. TonContained Metal: 34700Contained Unit: t. ozView all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
gold
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:a0605ac6a3482751e154
Deposit or zone
Massive Sulfide Type
Mining method
underground

Resource Data

Category
inferred
Tonnes
787400
Grade
0.04
Grade Unit
t. oz/ sh. Ton
Contained Metal
34700
Contained Unit
t. oz
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Gold grade in the Inferred category for the Massive Sulfide domain adds to the polymetallic nature of the resource.

Positive factors

  • Gold contribution in Inferred category
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“0.040”

Context: 868,000

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

inferredSouth Mountain Project · copperTonnes: 787400Grade: 0.74Grade Unit: %Contained Metal: 12800000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
copper
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:a0605ac6a3482751e154
Deposit or zone
Massive Sulfide Type
Mining method
underground

Resource Data

Category
inferred
Tonnes
787400
Grade
0.74
Grade Unit
%
Contained Metal
12800000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Copper grade in the Inferred category for the Massive Sulfide domain enhances the polymetallic value of the resource.

Positive factors

  • Copper contribution in Inferred category
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“0.74”

Context: 868,000

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

inferredSouth Mountain Project · leadTonnes: 787400Grade: 1.16Grade Unit: %Contained Metal: 20200000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
lead
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:a0605ac6a3482751e154
Deposit or zone
Massive Sulfide Type
Mining method
underground

Resource Data

Category
inferred
Tonnes
787400
Grade
1.16
Grade Unit
%
Contained Metal
20200000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Lead grade in the Inferred category for the Massive Sulfide domain adds to the polymetallic nature of the resource.

Positive factors

  • Lead contribution in Inferred category
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“1.16”

Context: 868,000

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

measuredSouth Mountain Project · zincTonnes: 13608Grade: 0.99Grade Unit: %Contained Metal: 300000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
zinc
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:42119126325f8705f785
Deposit or zone
Skarn Type
Mining method
underground

Resource Data

Category
measured
Tonnes
13608
Grade
0.99
Grade Unit
%
Contained Metal
300000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Zinc grade in the Measured category for the Skarn domain contributes to the overall resource.

Positive factors

  • Zinc contribution in Measured category for Skarn domain
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“0.99”

Context: 15,000

Tags used in scoring

Measured Resourcepositive

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

Why it applies: category is "measured"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

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

Why it applies: reporting_standards includes ni_43_101

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

measuredSouth Mountain Project · silverTonnes: 13608Grade: 4.61Grade Unit: t. oz/ sh. TonContained Metal: 70000Contained Unit: oz/ sh. tonView all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
silver
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:42119126325f8705f785
Deposit or zone
Skarn Type
Mining method
underground

Resource Data

Category
measured
Tonnes
13608
Grade
4.61
Grade Unit
t. oz/ sh. Ton
Contained Metal
70000
Contained Unit
oz/ sh. ton
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Silver grade in the Measured category for the Skarn domain adds to the polymetallic value.

Positive factors

  • Good silver grade in Measured category for Skarn domain
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“4.61”

Context: 15,000

Tags used in scoring

Measured Resourcepositive

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

Why it applies: category is "measured"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

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

Why it applies: reporting_standards includes ni_43_101

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

measuredSouth Mountain Project · goldTonnes: 13608Grade: 0.017Grade Unit: t. oz/ sh. TonContained Metal: 300Contained Unit: oz/ sh. tonView all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
gold
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:42119126325f8705f785
Deposit or zone
Skarn Type
Mining method
underground

Resource Data

Category
measured
Tonnes
13608
Grade
0.017
Grade Unit
t. oz/ sh. Ton
Contained Metal
300
Contained Unit
oz/ sh. ton
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Gold grade in the Measured category for the Skarn domain adds to the polymetallic nature of the resource.

Positive factors

  • Gold contribution in Measured category for Skarn domain
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“0.017”

Context: 15,000

Tags used in scoring

Measured Resourcepositive

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

Why it applies: category is "measured"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

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

Why it applies: reporting_standards includes ni_43_101

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

measuredSouth Mountain Project · copperTonnes: 13608Grade: 1.12Grade Unit: %Contained Metal: 300000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
copper
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:42119126325f8705f785
Deposit or zone
Skarn Type
Mining method
underground

Resource Data

Category
measured
Tonnes
13608
Grade
1.12
Grade Unit
%
Contained Metal
300000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Copper grade in the Measured category for the Skarn domain enhances the polymetallic value of the resource.

Positive factors

  • Good copper grade in Measured category for Skarn domain
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“1.12”

Context: 15,000

Tags used in scoring

Measured Resourcepositive

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

Why it applies: category is "measured"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

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

Why it applies: reporting_standards includes ni_43_101

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

measuredSouth Mountain Project · leadTonnes: 13608Grade: 0.27Grade Unit: %Contained Metal: 80000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
lead
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:42119126325f8705f785
Deposit or zone
Skarn Type
Mining method
underground

Resource Data

Category
measured
Tonnes
13608
Grade
0.27
Grade Unit
%
Contained Metal
80000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Lead grade in the Measured category for the Skarn domain adds to the polymetallic nature of the resource.

Positive factors

  • Lead contribution in Measured category for Skarn domain
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“0.27”

Context: 15,000

Tags used in scoring

Measured Resourcepositive

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

Why it applies: category is "measured"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

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

Why it applies: reporting_standards includes ni_43_101

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

indicatedSouth Mountain Project · zincTonnes: 29030Grade: 0.44Grade Unit: %Contained Metal: 300000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
zinc
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:f73b5a504520723abd9f
Deposit or zone
Skarn Type
Mining method
underground

Resource Data

Category
indicated
Tonnes
29030
Grade
0.44
Grade Unit
%
Contained Metal
300000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Zinc grade in the Indicated category for the Skarn domain contributes to the overall resource.

Positive factors

  • Zinc contribution in Indicated category for Skarn domain
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“0.44”

Context: 32,000

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

indicatedSouth Mountain Project · silverTonnes: 29030Grade: 3.44Grade Unit: t. oz/ sh. TonContained Metal: 109000Contained Unit: oz/ sh. tonView all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
silver
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:f73b5a504520723abd9f
Deposit or zone
Skarn Type
Mining method
underground

Resource Data

Category
indicated
Tonnes
29030
Grade
3.44
Grade Unit
t. oz/ sh. Ton
Contained Metal
109000
Contained Unit
oz/ sh. ton
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Silver grade in the Indicated category for the Skarn domain adds to the polymetallic value.

Positive factors

  • Good silver grade in Indicated category for Skarn domain
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“3.44”

Context: 32,000

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

indicatedSouth Mountain Project · goldTonnes: 29030Grade: 0.005Grade Unit: t. oz/ sh. TonContained Metal: 100Contained Unit: oz/ sh. tonView all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
gold
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:f73b5a504520723abd9f
Deposit or zone
Skarn Type
Mining method
underground

Resource Data

Category
indicated
Tonnes
29030
Grade
0.005
Grade Unit
t. oz/ sh. Ton
Contained Metal
100
Contained Unit
oz/ sh. ton
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Gold grade in the Indicated category for the Skarn domain adds to the polymetallic nature of the resource.

Positive factors

  • Gold contribution in Indicated category for Skarn domain
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“0.005”

Context: 32,000

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

indicatedSouth Mountain Project · copperTonnes: 29030Grade: 1.12Grade Unit: %Contained Metal: 700000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
copper
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:f73b5a504520723abd9f
Deposit or zone
Skarn Type
Mining method
underground

Resource Data

Category
indicated
Tonnes
29030
Grade
1.12
Grade Unit
%
Contained Metal
700000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Copper grade in the Indicated category for the Skarn domain enhances the polymetallic value of the resource.

Positive factors

  • Good copper grade in Indicated category for Skarn domain
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“1.12”

Context: 32,000

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

indicatedSouth Mountain Project · leadTonnes: 29030Grade: 0.07Grade Unit: %Contained Metal: 40000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
lead
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:f73b5a504520723abd9f
Deposit or zone
Skarn Type
Mining method
underground

Resource Data

Category
indicated
Tonnes
29030
Grade
0.07
Grade Unit
%
Contained Metal
40000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Lead grade in the Indicated category for the Skarn domain adds to the polymetallic nature of the resource.

Positive factors

  • Lead contribution in Indicated category for Skarn domain
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“0.07”

Context: 32,000

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

inferredSouth Mountain Project · zincTonnes: 82550Grade: 1.02Grade Unit: %Contained Metal: 1900000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
zinc
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:22accf84e2fa7883b4e8
Deposit or zone
Skarn Type
Mining method
underground

Resource Data

Category
inferred
Tonnes
82550
Grade
1.02
Grade Unit
%
Contained Metal
1900000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Zinc grade in the Inferred category for the Skarn domain contributes to the overall resource potential.

Positive factors

  • Zinc contribution in Inferred category for Skarn domain
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“1.02”

Context: 91,000

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

inferredSouth Mountain Project · silverTonnes: 82550Grade: 2.86Grade Unit: t. oz/ sh. TonContained Metal: 261000Contained Unit: oz/ sh. tonView all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
silver
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:22accf84e2fa7883b4e8
Deposit or zone
Skarn Type
Mining method
underground

Resource Data

Category
inferred
Tonnes
82550
Grade
2.86
Grade Unit
t. oz/ sh. Ton
Contained Metal
261000
Contained Unit
oz/ sh. ton
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Silver grade in the Inferred category for the Skarn domain adds to the polymetallic value.

Positive factors

  • Silver contribution in Inferred category for Skarn domain
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“2.86”

Context: 91,000

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

inferredSouth Mountain Project · goldTonnes: 82550Grade: 0.005Grade Unit: t. oz/ sh. TonContained Metal: 400Contained Unit: oz/ sh. tonView all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
gold
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:22accf84e2fa7883b4e8
Deposit or zone
Skarn Type
Mining method
underground

Resource Data

Category
inferred
Tonnes
82550
Grade
0.005
Grade Unit
t. oz/ sh. Ton
Contained Metal
400
Contained Unit
oz/ sh. ton
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Gold grade in the Inferred category for the Skarn domain adds to the polymetallic nature of the resource.

Positive factors

  • Gold contribution in Inferred category for Skarn domain
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“0.005”

Context: 91,000

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

inferredSouth Mountain Project · copperTonnes: 82550Grade: 1.41Grade Unit: %Contained Metal: 2600000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
copper
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:22accf84e2fa7883b4e8
Deposit or zone
Skarn Type
Mining method
underground

Resource Data

Category
inferred
Tonnes
82550
Grade
1.41
Grade Unit
%
Contained Metal
2600000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Copper grade in the Inferred category for the Skarn domain enhances the polymetallic value of the resource.

Positive factors

  • Good copper grade in Inferred category for Skarn domain
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“1.41”

Context: 91,000

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

inferredSouth Mountain Project · leadTonnes: 82550Grade: 0.04Grade Unit: %Contained Metal: 70000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
lead
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:22accf84e2fa7883b4e8
Deposit or zone
Skarn Type
Mining method
underground

Resource Data

Category
inferred
Tonnes
82550
Grade
0.04
Grade Unit
%
Contained Metal
70000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Lead grade in the Inferred category for the Skarn domain adds to the polymetallic nature of the resource.

Positive factors

  • Lead contribution in Inferred category for Skarn domain
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“0.04”

Context: 91,000

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

measuredSouth Mountain Project · zincTonnes: 62595Grade: 9.18Grade Unit: %Contained Metal: 12600000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
zinc
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:6bf68db341f5b6ee9daa
Deposit or zone
Total
Mining method
underground

Resource Data

Category
measured
Tonnes
62595
Grade
9.18
Grade Unit
%
Contained Metal
12600000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: High-grade zinc in the Measured category for the total resource contributes significantly to the project's value.

Positive factors

  • High-grade zinc in Measured category (Total)
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“9.18”

Context: 69,000

Tags used in scoring

Measured Resourcepositive

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

Why it applies: category is "measured"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

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

Why it applies: reporting_standards includes ni_43_101

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

measuredSouth Mountain Project · silverTonnes: 62595Grade: 3.84Grade Unit: t. oz/ sh. TonContained Metal: 264000Contained Unit: oz/ sh. tonView all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
silver
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:6bf68db341f5b6ee9daa
Deposit or zone
Total
Mining method
underground

Resource Data

Category
measured
Tonnes
62595
Grade
3.84
Grade Unit
t. oz/ sh. Ton
Contained Metal
264000
Contained Unit
oz/ sh. ton
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Good silver grade in the Measured category for the total resource adds to the project's polymetallic value.

Positive factors

  • Significant silver grade in Measured category (Total)
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“3.84”

Context: 69,000

Tags used in scoring

Measured Resourcepositive

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

Why it applies: category is "measured"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

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

Why it applies: reporting_standards includes ni_43_101

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

measuredSouth Mountain Project · goldTonnes: 62595Grade: 0.058Grade Unit: t. oz/ sh. TonContained Metal: 4000Contained Unit: oz/ sh. tonView all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
gold
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:6bf68db341f5b6ee9daa
Deposit or zone
Total
Mining method
underground

Resource Data

Category
measured
Tonnes
62595
Grade
0.058
Grade Unit
t. oz/ sh. Ton
Contained Metal
4000
Contained Unit
oz/ sh. ton
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Gold grade in the Measured category for the total resource adds to the polymetallic nature of the project.

Positive factors

  • Gold contribution in Measured category (Total)
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“0.058”

Context: 69,000

Tags used in scoring

Measured Resourcepositive

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

Why it applies: category is "measured"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

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

Why it applies: reporting_standards includes ni_43_101

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

measuredSouth Mountain Project · copperTonnes: 62595Grade: 0.6Grade Unit: %Contained Metal: 800000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
copper
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:6bf68db341f5b6ee9daa
Deposit or zone
Total
Mining method
underground

Resource Data

Category
measured
Tonnes
62595
Grade
0.6
Grade Unit
%
Contained Metal
800000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Copper grade in the Measured category for the total resource enhances the polymetallic value of the project.

Positive factors

  • Copper contribution in Measured category (Total)
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“0.60”

Context: 69,000

Tags used in scoring

Measured Resourcepositive

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

Why it applies: category is "measured"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

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

Why it applies: reporting_standards includes ni_43_101

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

measuredSouth Mountain Project · leadTonnes: 62595Grade: 0.67Grade Unit: %Contained Metal: 930000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
lead
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:6bf68db341f5b6ee9daa
Deposit or zone
Total
Mining method
underground

Resource Data

Category
measured
Tonnes
62595
Grade
0.67
Grade Unit
%
Contained Metal
930000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Lead grade in the Measured category for the total resource adds to the polymetallic nature of the project.

Positive factors

  • Lead contribution in Measured category (Total)
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“0.67”

Context: 69,000

Tags used in scoring

Measured Resourcepositive

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

Why it applies: category is "measured"

Cut-off Disclosedpositive

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

Why it applies: cutoff_grade is stated

QP/CP Signedpositive

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

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

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

Why it applies: reporting_standards includes ni_43_101

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

indicatedSouth Mountain Project · zincTonnes: 139659Grade: 8.95Grade Unit: %Contained Metal: 27600000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
zinc
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:995732994e3d9aaefb16
Deposit or zone
Total
Mining method
underground

Resource Data

Category
indicated
Tonnes
139659
Grade
8.95
Grade Unit
%
Contained Metal
27600000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: High-grade zinc in the Indicated category for the total resource contributes significantly to the project's value.

Positive factors

  • High-grade zinc in Indicated category (Total)
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“8.95”

Context: 154,000

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

indicatedSouth Mountain Project · silverTonnes: 139659Grade: 4.47Grade Unit: t. oz/ sh. TonContained Metal: 688000Contained Unit: oz/ sh. tonView all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
silver
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:995732994e3d9aaefb16
Deposit or zone
Total
Mining method
underground

Resource Data

Category
indicated
Tonnes
139659
Grade
4.47
Grade Unit
t. oz/ sh. Ton
Contained Metal
688000
Contained Unit
oz/ sh. ton
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Good silver grade in the Indicated category for the total resource adds to the project's polymetallic value.

Positive factors

  • Significant silver grade in Indicated category (Total)
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“4.47”

Context: 154,000

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

indicatedSouth Mountain Project · goldTonnes: 139659Grade: 0.06Grade Unit: t. oz/ sh. TonContained Metal: 9300Contained Unit: oz/ sh. tonView all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
gold
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:995732994e3d9aaefb16
Deposit or zone
Total
Mining method
underground

Resource Data

Category
indicated
Tonnes
139659
Grade
0.06
Grade Unit
t. oz/ sh. Ton
Contained Metal
9300
Contained Unit
oz/ sh. ton
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Gold grade in the Indicated category for the total resource adds to the polymetallic nature of the project.

Positive factors

  • Gold contribution in Indicated category (Total)
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“0.060”

Context: 154,000

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

indicatedSouth Mountain Project · copperTonnes: 139659Grade: 0.66Grade Unit: %Contained Metal: 2000000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
copper
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:995732994e3d9aaefb16
Deposit or zone
Total
Mining method
underground

Resource Data

Category
indicated
Tonnes
139659
Grade
0.66
Grade Unit
%
Contained Metal
2000000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Copper grade in the Indicated category for the total resource enhances the polymetallic value of the project.

Positive factors

  • Copper contribution in Indicated category (Total)
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“0.66”

Context: 154,000

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

indicatedSouth Mountain Project · leadTonnes: 139659Grade: 1.06Grade Unit: %Contained Metal: 3280000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
lead
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:995732994e3d9aaefb16
Deposit or zone
Total
Mining method
underground

Resource Data

Category
indicated
Tonnes
139659
Grade
1.06
Grade Unit
%
Contained Metal
3280000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Lead grade in the Indicated category for the total resource adds to the polymetallic nature of the project.

Positive factors

  • Lead contribution in Indicated category (Total)
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“1.06”

Context: 154,000

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

inferredSouth Mountain Project · zincTonnes: 869900Grade: 7.56Grade Unit: %Contained Metal: 145000000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
zinc
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:e4815047bbf4b1ef356f
Deposit or zone
Total
Mining method
underground

Resource Data

Category
inferred
Tonnes
869900
Grade
7.56
Grade Unit
%
Contained Metal
145000000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Significant zinc tonnage in the Inferred category for the total resource provides substantial future potential.

Positive factors

  • Large tonnage of zinc in Inferred category (Total)
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“7.56”

Context: 959,000

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

inferredSouth Mountain Project · silverTonnes: 869900Grade: 5.67Grade Unit: t. oz/ sh. TonContained Metal: 5438000Contained Unit: oz/ sh. tonView all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
silver
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:e4815047bbf4b1ef356f
Deposit or zone
Total
Mining method
underground

Resource Data

Category
inferred
Tonnes
869900
Grade
5.67
Grade Unit
t. oz/ sh. Ton
Contained Metal
5438000
Contained Unit
oz/ sh. ton
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: High silver grade and substantial contained metal in the Inferred category for the total resource adds significant future value.

Positive factors

  • Significant silver grade and contained metal in Inferred category (Total)
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“5.67”

Context: 959,000

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

inferredSouth Mountain Project · goldTonnes: 869900Grade: 0.037Grade Unit: t. oz/ sh. TonContained Metal: 35200Contained Unit: oz/ sh. tonView all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
gold
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:e4815047bbf4b1ef356f
Deposit or zone
Total
Mining method
underground

Resource Data

Category
inferred
Tonnes
869900
Grade
0.037
Grade Unit
t. oz/ sh. Ton
Contained Metal
35200
Contained Unit
oz/ sh. ton
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Gold grade in the Inferred category for the total resource adds to the polymetallic nature of the project.

Positive factors

  • Gold contribution in Inferred category (Total)
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“0.037”

Context: 959,000

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

inferredSouth Mountain Project · copperTonnes: 869900Grade: 0.8Grade Unit: %Contained Metal: 15400000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
copper
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:e4815047bbf4b1ef356f
Deposit or zone
Total
Mining method
underground

Resource Data

Category
inferred
Tonnes
869900
Grade
0.8
Grade Unit
%
Contained Metal
15400000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Copper grade in the Inferred category for the total resource enhances the polymetallic value of the project.

Positive factors

  • Copper contribution in Inferred category (Total)
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“0.80”

Context: 959,000

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

inferredSouth Mountain Project · leadTonnes: 869900Grade: 1.06Grade Unit: %Contained Metal: 20270000Contained Unit: lb.View all details
Link to this fact

Identity

Project
South Mountain Project
Commodity
lead
Region
usa_id
Reported Region
Idaho, U.S.A.
Ticker
THM

Resource scope

Estimate type
resource
Effective date
2023-10-16T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Richard A. Schwering
Resource group id
resource:e4815047bbf4b1ef356f
Deposit or zone
Total
Mining method
underground

Resource Data

Category
inferred
Tonnes
869900
Grade
1.06
Grade Unit
%
Contained Metal
20270000
Contained Unit
lb.
Cutoff Grade
97.5
Cutoff Unit
USD/ton NSR

Prior Estimate

Resource Date
2023-10-16

Metal Equivalent

Assumptions Disclosed
Yes

Lab

Laboratory
ALS Global

Review

Needs Review
No
Historical
No

Dates

Event date
2023-12-21T00:00:00.000Z

Reasoning: Lead grade in the Inferred category for the total resource adds to the polymetallic nature of the project.

Positive factors

  • Lead contribution in Inferred category (Total)
  • Part of an updated NI 43-101 compliant resource

Evidence · table

“1.06”

Context: 959,000

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

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.