By-Product Credits Can Push a Silver Mine's Cash Cost Below Zero

Original announcement by orestocks on

Company
Honey Badger Silver Inc.
Ticker
TUF
Exchange
Unavailable
Region
Northwest Territories
Primary commodity
Silver
Secondary commodities
Zinc, Lead, Copper
Document categories
Metallurgy, Resource update, Other
Extracted
2026-09-17 15:48:57 UTC

Analysis by Minestarters Atlas

Atlas analysis published:

Minestarters Atlas analysis

Summary

Honey Badger Silver Inc. has announced a positive Preliminary Economic Assessment (PEA) for its PC Silver Mine in the Northwest Territories. The project features a 22-year mine life with significant silver-equivalent production and an all-in sustaining cost (AISC) that could be negative due to substantial zinc, lead, and copper by-product credits.

Reasoning: The announcement of a positive PEA with negative AISC and strong NPV for the PC Silver Mine is a highly material development for the company.

Positive factors

  • Significant silver-equivalent grades
  • Negative AISC due to high by-product credits
  • Strong project economics (NPV $1.2B, 29% IRR)
  • Existing infrastructure reduces capital intensity

Negative factors

  • PEA stage includes speculative Inferred resources
  • High capital requirements for road and development

Facts used in scoring: 10

Classification and evidence

PEA-Supportingneutral

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

Why it applies: The announcement describes a Preliminary Economic Assessment (PEA) for the PC Silver Mine.

Evidence · text

“Honey Badger Silver Announces Positive Preliminary Economic Assessment”

Inferred Resourcenegative

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

Why it applies: The PEA includes a significant portion of Inferred resources which are considered too speculative for reserves.

Evidence · text

“includes Inferred Mineral Resources that are considered too speculative geologically”

Gravity Routeneutral

Gravity separation forms a material part of the flowsheet.

Why it applies: the document describes a gravity route ("dense media separation")

Multi-Domain Testedpositive

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

Why it applies: 2 distinct composites were tested

Extracted facts

Stored fact records: 10. Some facts used in scoring do not have a stored record.

Resource Estimates (2)

indicatedPC Silver Mine · silverTonnes: 11630000View all details
Link to this fact

Identity

Project
PC Silver Mine
Commodity
silver
Region
northwest territories
Reported Region
Northwest Territories
Ticker
TUF

Resource scope

Estimate type
resource
Effective date
2026-06-21T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Mike Makarenko, Greg Mosher
Resource group id
resource:df0f52aa25371fbc66e8
Deposit or zone
PC Silver Mine
Mining method
underground
Ownership percent
100 %

Resource Data

Category
indicated
Tonnes
11630000

Prior Estimate

Resource Date
2026-06-21

Metal Equivalent

Metal Eq. Grade
424
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-17T00:00:00.000Z

Reasoning: Strong M&I resource grade of 424 g/t AgEq.

Positive factors

  • High silver-equivalent grade

Evidence · text

“11.63 million tonnes of Measured and Indicated resources grading 424 g/t AgEq”

Tags used in scoring

Indicated Resourcepositive

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

Why it applies: category is "indicated"

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

QP/CP Signedpositive

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

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

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

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

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

Why it applies: contained_metal was not reported

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

PEA-Supportingneutral

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

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

DFS-Supportingneutral

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

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

inferredPC Silver Mine · silverTonnes: 8470000View all details
Link to this fact

Identity

Project
PC Silver Mine
Commodity
silver
Region
northwest territories
Reported Region
Northwest Territories
Ticker
TUF

Resource scope

Estimate type
resource
Effective date
2026-06-21T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Mike Makarenko, Greg Mosher
Resource group id
resource:6ec2a67061f8f6e1d903
Deposit or zone
PC Silver Mine
Mining method
underground
Ownership percent
100 %

Resource Data

Category
inferred
Tonnes
8470000

Prior Estimate

Resource Date
2026-06-21

Metal Equivalent

Metal Eq. Grade
492
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
Yes

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-17T00:00:00.000Z

Reasoning: High grade but in the speculative Inferred category.

Positive factors

  • High silver-equivalent grade

Negative factors

  • Inferred category is speculative

Evidence · text

“8.47 million tonnes of Inferred resources grading 492 g/t AgEq”

Tags used in scoring

Inferred Resourcenegative

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

Why it applies: category is "inferred"

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

QP/CP Signedpositive

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

Why it applies: qp_signed is true

NI 43-101 Compliantpositive

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

Why it applies: reporting_standards includes ni_43_101

No Contained Metalnegative

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

Why it applies: contained_metal was not reported

Resource Updateneutral

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

Why it applies: the release compares against a previous estimate

PEA-Supportingneutral

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

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

DFS-Supportingneutral

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

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

Metallurgical Results (8)

Fact 1silverHead Grade: 112Head Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Region
northwest territories
Reported Region
Northwest Territories
Ticker
TUF

Test Work

Sample
Mined grade before DMS

Recovery

Head Grade
112
Head Grade Unit
g/t

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-17T00:00:00.000Z

Reasoning: Reported mined grade before upgrading.

Evidence · text

“Mined grade before DMS is 112 g/t silver”

Tags used in scoring

Byproduct Commodityneutral

The tested commodity is a byproduct rather than the primary economic driver.

Why it applies: the release describes a byproduct credit

Fact 2leadHead Grade: 6.1Head Grade Unit: %View all details
Link to this fact

Identity

Commodity
lead
Region
northwest territories
Reported Region
Northwest Territories
Ticker
TUF

Test Work

Sample
Mined grade before DMS

Recovery

Head Grade
6.1
Head Grade Unit
%

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-17T00:00:00.000Z

Reasoning: Reported mined grade before upgrading.

Evidence · text

“6.1% lead”

Tags used in scoring

Byproduct Commodityneutral

The tested commodity is a byproduct rather than the primary economic driver.

Why it applies: the release describes a byproduct credit

Fact 3zincHead Grade: 8.5Head Grade Unit: %View all details
Link to this fact

Identity

Commodity
zinc
Region
northwest territories
Reported Region
Northwest Territories
Ticker
TUF

Test Work

Sample
Mined grade before DMS

Recovery

Head Grade
8.5
Head Grade Unit
%

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-17T00:00:00.000Z

Reasoning: Reported mined grade before upgrading.

Evidence · text

“8.5% zinc”

Tags used in scoring

Byproduct Commodityneutral

The tested commodity is a byproduct rather than the primary economic driver.

Why it applies: the release describes a byproduct credit

Fact 4copperHead Grade: 0.25Head Grade Unit: %View all details
Link to this fact

Identity

Commodity
copper
Region
northwest territories
Reported Region
Northwest Territories
Ticker
TUF

Test Work

Sample
Mined grade before DMS

Recovery

Head Grade
0.25
Head Grade Unit
%

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-17T00:00:00.000Z

Reasoning: Reported mined grade before upgrading.

Evidence · text

“0.25% copper”

Tags used in scoring

Byproduct Commodityneutral

The tested commodity is a byproduct rather than the primary economic driver.

Why it applies: the release describes a byproduct credit

Fact 5silverHead Grade: 173Head Grade Unit: g/tView all details
Link to this fact

Identity

Commodity
silver
Region
northwest territories
Reported Region
Northwest Territories
Ticker
TUF

Test Work

Sample
Mill head grade after DMS

Recovery

Head Grade
173
Head Grade Unit
g/t

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-17T00:00:00.000Z

Reasoning: Improved mill head grade after upgrading.

Positive factors

  • Significant grade upgrade via DMS

Evidence · text

“mill head grade of 173 g/t silver”

Tags used in scoring

Byproduct Commodityneutral

The tested commodity is a byproduct rather than the primary economic driver.

Why it applies: the release describes a byproduct credit

Fact 6leadHead Grade: 9.4Head Grade Unit: %View all details
Link to this fact

Identity

Commodity
lead
Region
northwest territories
Reported Region
Northwest Territories
Ticker
TUF

Test Work

Sample
Mill head grade after DMS

Recovery

Head Grade
9.4
Head Grade Unit
%

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-17T00:00:00.000Z

Reasoning: Improved mill head grade after upgrading.

Positive factors

  • Significant grade upgrade via DMS

Evidence · text

“9.4% lead”

Tags used in scoring

Byproduct Commodityneutral

The tested commodity is a byproduct rather than the primary economic driver.

Why it applies: the release describes a byproduct credit

Fact 7zincHead Grade: 12.8Head Grade Unit: %View all details
Link to this fact

Identity

Commodity
zinc
Region
northwest territories
Reported Region
Northwest Territories
Ticker
TUF

Test Work

Sample
Mill head grade after DMS

Recovery

Head Grade
12.8
Head Grade Unit
%

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-17T00:00:00.000Z

Reasoning: Improved mill head grade after upgrading.

Positive factors

  • Significant grade upgrade via DMS

Evidence · text

“12.8% zinc”

Tags used in scoring

Byproduct Commodityneutral

The tested commodity is a byproduct rather than the primary economic driver.

Why it applies: the release describes a byproduct credit

Fact 8copperHead Grade: 0.39Head Grade Unit: %View all details
Link to this fact

Identity

Commodity
copper
Region
northwest territories
Reported Region
Northwest Territories
Ticker
TUF

Test Work

Sample
Mill head grade after DMS

Recovery

Head Grade
0.39
Head Grade Unit
%

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-17T00:00:00.000Z

Reasoning: Improved mill head grade after upgrading.

Positive factors

  • Significant grade upgrade via DMS

Evidence · text

“0.39% copper”

Tags used in scoring

Byproduct Commodityneutral

The tested commodity is a byproduct rather than the primary economic driver.

Why it applies: the release describes a byproduct credit

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.