i-80 Gold Announces Additional High-Grade Assay Results From Archimedes Underground Including 16.2 g/t Au Over 56.4 Meters; Updates Timing of 2026 Technical Studies

Original announcement by orestocks on Jun 26, 2026

Bullish

Company: i-80 Gold Corp.
Ticker: IAU
Exchange: Unavailable
Region: Nevada
Primary commodity: Gold
Secondary commodities: Silver
Document categories: Drill results, Resource update
Extracted: 2026-10-01 02:54:04 UTC

Atlas analysis published: Oct 1, 2026

Minestarters Atlas analysis

Summary

i-80 Gold announced additional high-grade gold assay results from its Archimedes Underground Project, including 16.2 g/t Au over 56.4 meters. These infill drill results confirm significant widths and continuity of mineralization, supporting the project's development towards first gold in Q4 2026. The company also provided an updated mineral resource estimate for Archimedes and noted a delay in feasibility-level technical studies for its Granite Creek and Cove underground projects.

Reasoning: The drill results confirm and extend high-grade gold mineralization at Archimedes, supporting the project's development timeline and resource update, despite the general nature of true width disclosure and minor delays in other studies.

Positive factors

High-grade gold intercepts with significant widths
Infill drilling confirms continuity and extends mineralization
Project development remains on schedule for first gold in Q4 2026
Resource estimate updated with high confidence categories (Indicated)
Comprehensive QA/QC disclosure and QP sign-off

Negative factors

True width is estimated as a range rather than a precise value per intercept
Feasibility studies for other projects (Granite Creek and Cove) are delayed

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

Facts used in scoring: 46

Classification and evidence

Bonanza Interceptpositive

Exceptionally high-grade zone, well above the deposit-type norm.

Why it applies: Hole iAU26-09 returned 16.2 g/t Au over 56.4 m, which is an exceptional grade-width product (913.68 g/t·m) for an underground gold deposit.

Evidence · table

“16.2”

Context: 56.4

Bonanza Interceptpositive

Exceptionally high-grade zone, well above the deposit-type norm.

Why it applies: Hole iAU26-11 returned 21.9 g/t Au over 20.2 m, which is an exceptional grade-width product (442.38 g/t·m) for an underground gold deposit.

Evidence · table

“21.9”

Context: 20.2

True Width Disclosedpositive

Actual thickness perpendicular to structure is stated, not just downhole length.

Why it applies: The document states that 'True widths are estimated between approximately 40%-65% of core width', providing an estimate for true width.

Evidence · text

“True widths are estimated between approximately 40%-65% of core width.”

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: The release details that samples were submitted to MSALABS (MSA), an ISO9001 and ISO/IEC 17025 accredited laboratory, and that i-80 Gold's QA/QC program includes regular insertion of standards, duplicates, and blanks.

Evidence · text

“All samples were submitted to MSALABS (MSA) of Elko, NV, which is an ISO9001 and ISO/IEC 17025 accredited laboratory, independent of the Company. Samples submitted through MSA are crushed to 80% passing 2 mm and analyzed using CPA-Au1 (Au; 500 gram photon assay). MSA also undertakes their own internal coarse duplicate analysis to ensure proper sample preparation and equipment calibration. i-80 Gold's QA/QC program includes regular insertion of standards, duplicates, and blanks into the sample stream with a stringent review of all results.”

Infill Drillingneutral

Confirmatory drilling to raise resource confidence, not new discovery.

Why it applies: The drill campaign is explicitly described as an 'infill drill campaign within the upper 426 zone' with a focus on 'further delineating the upper 426 zone to approximately 60-foot spacing'.

Evidence · text

“remaining assay results from the completed 2025-2026 infill drill campaign within the upper 426 zone of the Archimedes Underground Project”

NI 43-101 Compliantpositive

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

Why it applies: The resource estimate and technical studies are stated to be prepared in accordance with National Instrument 43-101.

Evidence · text

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

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: The technical information has been reviewed and approved by Paul Chawrun P.Eng. and Tyler Hill CPG., who are qualified persons within the meaning of NI 43-101 and S-K 1300, and a QP from Practical Mining LLC reviewed the resource.

Evidence · text

“The technical information contained in this press release has been prepared under the supervision of, and has been reviewed and approved by Paul Chawrun P.Eng., Executive Vice President and Chief Operating Officer, and Tyler Hill CPG., Vice President Geology, for the Company, each of whom are qualified persons within the meaning of NI 43-101 and S-K 1300. ... A Qualified Person and employee of Practical Mining LLC, has reviewed the Ruby Hill Underground mineral resources and material assumptions included in the Ruby Hill Technical Report and confirmed that they remain current as of December 31, 2025.”

Indicated Resourcepositive

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

Why it applies: The resource estimate includes a significant portion classified as Indicated Mineral Resources.

Evidence · table

“Indicated Mineral Resources”

Context: 426

Inferred Resourcenegative

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

Why it applies: The resource estimate includes a significant portion classified as Inferred Mineral Resources.

Evidence · table

“Inferred Mineral Resources”

Context: 426

Resource Updateneutral

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

Why it applies: The document provides an updated mineral resource estimate for Archimedes as of December 31, 2025.

Evidence · text

“As of December 31, 2025, Archimedes hosts an Indicated Mineral Resource of 1.8 million tonnes containing 436,000 ounces of gold grading 7.6 grams per tonne and an Inferred Mineral Resource of 4.2 million tonnes containing 988,000 ounces of gold grading 7.3 grams per tonne(1).”

Cut-off Disclosedpositive

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

Why it applies: The cut-off grades for the resource estimate are explicitly stated as 5.06 and 5.48 Au g/t for the 426 and Ruby Deeps deposits respectively.

Evidence · text

“Pressure oxidation cutoff grades are 5.06 and 5.48 Au g/t (0.148 and 0.160 opt) for the 426 and Ruby Deeps deposits respectively.”

Deleterious Elements Presentnegative

Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.

Why it applies: The resource estimate notes that 'Pressure oxidation gold metallurgical recoveries' are used, implying the presence of sulfide material that requires pressure oxidation, which can be a more complex and costly processing route.

Evidence · text

“Mineral resources have been estimated using pressure oxidation gold metallurgical recoveries of 96.8% and 89.5% for the 426 and Ruby Deeps deposits respectively.”

Extracted facts

Stored fact records: 46. Some facts used in scoring do not have a stored record.

Drill Results (34)

iAU26-06Archimedes Underground · goldGrade: 7.9Grade Unit: g/tIntercept: 9.1 mView all details

Link to this fact

Identity

Hole ID: iAU26-06
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 7.9
Grade Unit: g/t
Intercept: 9.1 m
From: 107.6 m
To: 116.7 m
Intercept Depth: 107.6 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-06:107.6-116.7
Mining Method: underground

Location

Easting: 587367
Northing: 4375865
CRS: NAD83 Zone 11N
Elevation: 1774 m
Azimuth: 302 °
Dip: -51 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: This intercept shows strong gold grades, confirming mineralization in an infill drilling program, contributing positively to resource confidence.

Positive factors

High-grade gold intercept (7.9 g/t Au is strong for underground)
Infill drilling confirms continuity

Negative factors

True width is estimated as a range

Evidence · table

“7.9”

Context: 9.1

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-06Archimedes Underground · goldGrade: 6.8Grade Unit: g/tIntercept: 3.8 mView all details

Link to this fact

Identity

Hole ID: iAU26-06
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 6.8
Grade Unit: g/t
Intercept: 3.8 m
From: 137.8 m
To: 141.7 m
Intercept Depth: 107.6 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-06:137.8-141.7
Mining Method: underground

Location

Easting: 587367
Northing: 4375865
CRS: NAD83 Zone 11N
Elevation: 1774 m
Azimuth: 302 °
Dip: -51 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A strong gold grade over a narrow interval, contributing to the overall understanding of mineralization continuity.

Positive factors

Good gold grade (6.8 g/t Au is strong for underground)

Negative factors

Relatively narrow intercept length
True width is estimated as a range

Evidence · table

“6.8”

Context: 3.8

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-06Archimedes Underground · goldGrade: 7.4Grade Unit: g/tIntercept: 6.9 mView all details

Link to this fact

Identity

Hole ID: iAU26-06
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 7.4
Grade Unit: g/t
Intercept: 6.9 m
From: 157.2 m
To: 164.1 m
Intercept Depth: 107.6 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-06:157.2-164.1
Mining Method: underground

Location

Easting: 587367
Northing: 4375865
CRS: NAD83 Zone 11N
Elevation: 1774 m
Azimuth: 302 °
Dip: -51 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A strong gold grade over a moderate interval, further supporting the continuity of mineralization.

Positive factors

Strong gold grade (7.4 g/t Au is strong for underground)

Negative factors

True width is estimated as a range

Evidence · table

“7.4”

Context: 6.9

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-07Archimedes Underground · goldGrade: 16.1Grade Unit: g/tIntercept: 17.6 mView all details

Link to this fact

Identity

Hole ID: iAU26-07
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 16.1
Grade Unit: g/t
Intercept: 17.6 m
From: 137.2 m
To: 154.8 m
Intercept Depth: 137.2 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-07:137.2-154.8
Mining Method: underground

Location

Easting: 587354
Northing: 4375817
CRS: NAD83 Zone 11N
Elevation: 1779 m
Azimuth: 287 °
Dip: -34 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: An exceptional high-grade gold intercept over a significant width, strongly supporting the project's economic potential and continuity.

Positive factors

Exceptional gold grade (16.1 g/t Au is exceptional for underground)
Significant intercept length (17.6 m)
High GT product (283.36 g/t·m)

Negative factors

True width is estimated as a range

Evidence · table

“16.1”

Context: 17.6

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-07Archimedes Underground · goldGrade: 2.4Grade Unit: g/tIntercept: 19.8 mView all details

Link to this fact

Identity

Hole ID: iAU26-07
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 2.4
Grade Unit: g/t
Intercept: 19.8 m
From: 154.8 m
To: 174.5 m
Intercept Depth: 137.2 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-07:154.8-174.5
Mining Method: underground

Location

Easting: 587354
Northing: 4375817
CRS: NAD83 Zone 11N
Elevation: 1779 m
Azimuth: 287 °
Dip: -34 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A moderate intercept length with a weak gold grade, indicating some mineralization but below high-grade targets for underground mining.

Positive factors

Moderate intercept length (19.8 m)

Negative factors

Weak gold grade (2.4 g/t Au is below weak for underground)
True width is estimated as a range

Evidence · table

“2.4”

Context: 19.8

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-07Archimedes Underground · goldGrade: 14Grade Unit: g/tIntercept: 10.8 mView all details

Link to this fact

Identity

Hole ID: iAU26-07
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 14
Grade Unit: g/t
Intercept: 10.8 m
From: 185.6 m
To: 196.4 m
Intercept Depth: 137.2 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-07:185.6-196.4
Mining Method: underground

Location

Easting: 587354
Northing: 4375817
CRS: NAD83 Zone 11N
Elevation: 1779 m
Azimuth: 287 °
Dip: -34 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A high-grade gold intercept over a moderate width, adding to the positive results from this hole and confirming mineralization.

Positive factors

High-grade gold intercept (14.0 g/t Au is strong for underground)
Moderate intercept length (10.8 m)
High GT product (151.2 g/t·m)

Negative factors

True width is estimated as a range

Evidence · table

“14.0”

Context: 10.8

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-08Archimedes Underground · goldGrade: 7.3Grade Unit: g/tIntercept: 33.1 mView all details

Link to this fact

Identity

Hole ID: iAU26-08
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 7.3
Grade Unit: g/t
Intercept: 33.1 m
From: 183.5 m
To: 216.6 m
Intercept Depth: 183.5 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-08:183.5-216.6
Mining Method: underground

Location

Easting: 587415
Northing: 4375965
CRS: NAD83 Zone 11N
Elevation: 1758 m
Azimuth: 5 °
Dip: -48 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A strong gold grade over a significant width, indicating good continuity and potential for economic extraction in an underground setting.

Positive factors

Strong gold grade (7.3 g/t Au is strong for underground)
Significant intercept length (33.1 m)
High GT product (241.63 g/t·m)

Negative factors

True width is estimated as a range

Evidence · table

“7.3”

Context: 33.1

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-08Archimedes Underground · goldGrade: 9.8Grade Unit: g/tIntercept: 4 mView all details

Link to this fact

Identity

Hole ID: iAU26-08
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 9.8
Grade Unit: g/t
Intercept: 4 m
From: 183.5 m
To: 187.5 m
Intercept Depth: 183.5 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-08:183.5-187.5
Mining Method: underground

Location

Easting: 587415
Northing: 4375965
CRS: NAD83 Zone 11N
Elevation: 1758 m
Azimuth: 5 °
Dip: -48 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A strong gold grade over a narrow interval, contributing to the overall mineralization profile of the hole.

Positive factors

Strong gold grade (9.8 g/t Au is strong for underground)

Negative factors

Relatively narrow intercept length
True width is estimated as a range

Evidence · table

“9.8”

Context: 4.0

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-09Archimedes Underground · goldGrade: 16.2Grade Unit: g/tIntercept: 56.4 mView all details

Link to this fact

Identity

Hole ID: iAU26-09
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 16.2
Grade Unit: g/t
Intercept: 56.4 m
From: 145.9 m
To: 202.3 m
Intercept Depth: 145.9 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-09:145.9-202.3
Mining Method: underground

Location

Easting: 587354
Northing: 4375817
CRS: NAD83 Zone 11N
Elevation: 1779 m
Azimuth: 281 °
Dip: -31 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: This is an outstanding high-grade gold intercept over a very significant width, representing a bonanza result that strongly supports the project's economic viability and potential for expansion.

Positive factors

Exceptional gold grade (16.2 g/t Au is exceptional for underground)
Very significant intercept length (56.4 m)
Exceptional GT product (913.68 g/t·m)
Headline intercept for the release

Negative factors

True width is estimated as a range

Evidence · table

“16.2”

Context: 56.4

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-11Archimedes Underground · goldGrade: 21.9Grade Unit: g/tIntercept: 20.2 mView all details

Link to this fact

Identity

Hole ID: iAU26-11
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 21.9
Grade Unit: g/t
Intercept: 20.2 m
From: 181.4 m
To: 201.6 m
Intercept Depth: 181.4 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-11:181.4-201.6
Mining Method: underground

Location

Easting: 587354
Northing: 4375817
CRS: NAD83 Zone 11N
Elevation: 1779 m
Azimuth: 276 °
Dip: -31 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: An exceptional high-grade gold intercept over a significant width, representing a bonanza result that strongly supports the project's economic viability.

Positive factors

Exceptional gold grade (21.9 g/t Au is exceptional for underground)
Significant intercept length (20.2 m)
Exceptional GT product (442.38 g/t·m)

Negative factors

True width is estimated as a range

Evidence · table

“21.9”

Context: 20.2

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-12Archimedes Underground · goldGrade: 2.4Grade Unit: g/tIntercept: 28.3 mView all details

Link to this fact

Identity

Hole ID: iAU26-12
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 2.4
Grade Unit: g/t
Intercept: 28.3 m
From: 107.4 m
To: 135.8 m
Intercept Depth: 107.4 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-12:107.4-135.8
Mining Method: underground

Location

Easting: 587415
Northing: 4375965
CRS: NAD83 Zone 11N
Elevation: 1759 m
Azimuth: 355 °
Dip: -55 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A moderate intercept length with a weak gold grade, indicating some mineralization but below high-grade targets for underground mining.

Positive factors

Moderate intercept length (28.3 m)

Negative factors

Weak gold grade (2.4 g/t Au is below weak for underground)
True width is estimated as a range

Evidence · table

“2.4”

Context: 28.3

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-12Archimedes Underground · goldGrade: 5.2Grade Unit: g/tIntercept: 5.7 mView all details

Link to this fact

Identity

Hole ID: iAU26-12
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 5.2
Grade Unit: g/t
Intercept: 5.7 m
From: 138.7 m
To: 144.4 m
Intercept Depth: 107.4 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-12:138.7-144.4
Mining Method: underground

Location

Easting: 587415
Northing: 4375965
CRS: NAD83 Zone 11N
Elevation: 1759 m
Azimuth: 355 °
Dip: -55 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A moderate gold grade over a narrow interval, contributing to the overall mineralization profile.

Positive factors

Moderate gold grade (5.2 g/t Au is moderate for underground)

Negative factors

Relatively narrow intercept length
True width is estimated as a range

Evidence · table

“5.2”

Context: 5.7

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-12Archimedes Underground · goldGrade: 9Grade Unit: g/tIntercept: 8.7 mView all details

Link to this fact

Identity

Hole ID: iAU26-12
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 9
Grade Unit: g/t
Intercept: 8.7 m
From: 167.8 m
To: 176.5 m
Intercept Depth: 107.4 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-12:167.8-176.5
Mining Method: underground

Location

Easting: 587415
Northing: 4375965
CRS: NAD83 Zone 11N
Elevation: 1759 m
Azimuth: 355 °
Dip: -55 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A strong gold grade over a moderate interval, further supporting the continuity of mineralization.

Positive factors

Strong gold grade (9.0 g/t Au is strong for underground)

Negative factors

True width is estimated as a range

Evidence · table

“9.0”

Context: 8.7

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-12Archimedes Underground · goldGrade: 10.7Grade Unit: g/tIntercept: 16.6 mView all details

Link to this fact

Identity

Hole ID: iAU26-12
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 10.7
Grade Unit: g/t
Intercept: 16.6 m
From: 190.1 m
To: 206.7 m
Intercept Depth: 107.4 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-12:190.1-206.7
Mining Method: underground

Location

Easting: 587415
Northing: 4375965
CRS: NAD83 Zone 11N
Elevation: 1759 m
Azimuth: 355 °
Dip: -55 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A strong gold grade over a significant width, indicating good continuity and potential for economic extraction in an underground setting.

Positive factors

Strong gold grade (10.7 g/t Au is strong for underground)
Significant intercept length (16.6 m)
High GT product (177.62 g/t·m)

Negative factors

True width is estimated as a range

Evidence · table

“10.7”

Context: 16.6

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-13Archimedes Underground · goldGrade: 2.2Grade Unit: g/tIntercept: 5.2 mView all details

Link to this fact

Identity

Hole ID: iAU26-13
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 2.2
Grade Unit: g/t
Intercept: 5.2 m
From: 142.9 m
To: 148 m
Intercept Depth: 142.9 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-13:142.9-148
Mining Method: underground

Location

Easting: 587415
Northing: 4375965
CRS: NAD83 Zone 11N
Elevation: 1759 m
Azimuth: 353 °
Dip: -51 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A weak gold grade over a narrow interval, indicating some mineralization but not a high-priority target for underground mining.

Negative factors

Weak gold grade (2.2 g/t Au is below weak for underground)
Relatively narrow intercept length
True width is estimated as a range

Evidence · table

“2.2”

Context: 5.2

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-13Archimedes Underground · goldGrade: 6.6Grade Unit: g/tIntercept: 17.8 mView all details

Link to this fact

Identity

Hole ID: iAU26-13
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 6.6
Grade Unit: g/t
Intercept: 17.8 m
From: 169.7 m
To: 187.5 m
Intercept Depth: 142.9 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-13:169.7-187.5
Mining Method: underground

Location

Easting: 587415
Northing: 4375965
CRS: NAD83 Zone 11N
Elevation: 1759 m
Azimuth: 353 °
Dip: -51 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A strong gold grade over a moderate width, confirming mineralization in an infill drilling program.

Positive factors

Strong gold grade (6.6 g/t Au is strong for underground)
Moderate intercept length (17.8 m)

Negative factors

True width is estimated as a range

Evidence · table

“6.6”

Context: 17.8

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-13Archimedes Underground · goldGrade: 11Grade Unit: g/tIntercept: 26.1 mView all details

Link to this fact

Identity

Hole ID: iAU26-13
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 11
Grade Unit: g/t
Intercept: 26.1 m
From: 197.5 m
To: 223.6 m
Intercept Depth: 142.9 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-13:197.5-223.6
Mining Method: underground

Location

Easting: 587415
Northing: 4375965
CRS: NAD83 Zone 11N
Elevation: 1759 m
Azimuth: 353 °
Dip: -51 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A strong gold grade over a significant width, indicating good continuity and potential for economic extraction in an underground setting.

Positive factors

Strong gold grade (11.0 g/t Au is strong for underground)
Significant intercept length (26.1 m)
High GT product (287.1 g/t·m)

Negative factors

True width is estimated as a range

Evidence · table

“11.0”

Context: 26.1

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-14Archimedes Underground · goldGrade: 7Grade Unit: g/tIntercept: 2.4 mView all details

Link to this fact

Identity

Hole ID: iAU26-14
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 7
Grade Unit: g/t
Intercept: 2.4 m
From: 127.7 m
To: 130.1 m
Intercept Depth: 127.7 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-14:127.7-130.1
Mining Method: underground

Location

Easting: 587415
Northing: 4375965
CRS: NAD83 Zone 11N
Elevation: 1759 m
Azimuth: 349 °
Dip: -62 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A strong gold grade over a very narrow interval, indicating localized high-grade mineralization.

Positive factors

Strong gold grade (7.0 g/t Au is strong for underground)

Negative factors

Very narrow intercept length
True width is estimated as a range

Evidence · table

“7.0”

Context: 2.4

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-15Archimedes Underground · goldGrade: 3Grade Unit: g/tIntercept: 8 mView all details

Link to this fact

Identity

Hole ID: iAU26-15
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 3
Grade Unit: g/t
Intercept: 8 m
From: 110.4 m
To: 118.4 m
Intercept Depth: 110.4 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-15:110.4-118.4
Mining Method: underground

Location

Easting: 587415
Northing: 4375965
CRS: NAD83 Zone 11N
Elevation: 1759 m
Azimuth: 344 °
Dip: -57 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A weak gold grade over a moderate interval, indicating some mineralization but not a high-priority target for underground mining.

Positive factors

Moderate intercept length (8.0 m)

Negative factors

Weak gold grade (3.0 g/t Au is weak for underground)
True width is estimated as a range

Evidence · table

“3.0”

Context: 8.0

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-15Archimedes Underground · goldGrade: 11.1Grade Unit: g/tIntercept: 3.1 mView all details

Link to this fact

Identity

Hole ID: iAU26-15
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 11.1
Grade Unit: g/t
Intercept: 3.1 m
From: 156.2 m
To: 159.2 m
Intercept Depth: 110.4 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-15:156.2-159.2
Mining Method: underground

Location

Easting: 587415
Northing: 4375965
CRS: NAD83 Zone 11N
Elevation: 1759 m
Azimuth: 344 °
Dip: -57 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A strong gold grade over a very narrow interval, indicating localized high-grade mineralization.

Positive factors

Strong gold grade (11.1 g/t Au is strong for underground)

Negative factors

Very narrow intercept length
True width is estimated as a range

Evidence · table

“11.1”

Context: 3.1

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-15Archimedes Underground · goldGrade: 8Grade Unit: g/tIntercept: 22.4 mView all details

Link to this fact

Identity

Hole ID: iAU26-15
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 8
Grade Unit: g/t
Intercept: 22.4 m
From: 171 m
To: 193.4 m
Intercept Depth: 110.4 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-15:171-193.4
Mining Method: underground

Location

Easting: 587415
Northing: 4375965
CRS: NAD83 Zone 11N
Elevation: 1759 m
Azimuth: 344 °
Dip: -57 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A strong gold grade over a significant width, indicating good continuity and potential for economic extraction in an underground setting.

Positive factors

Strong gold grade (8.0 g/t Au is strong for underground)
Significant intercept length (22.4 m)
High GT product (179.2 g/t·m)

Negative factors

True width is estimated as a range

Evidence · table

“8.0”

Context: 22.4

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-16Archimedes Underground · goldGrade: 7.8Grade Unit: g/tIntercept: 5.2 mView all details

Link to this fact

Identity

Hole ID: iAU26-16
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 7.8
Grade Unit: g/t
Intercept: 5.2 m
From: 151.7 m
To: 156.9 m
Intercept Depth: 151.7 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-16:151.7-156.9
Mining Method: underground

Location

Easting: 587415
Northing: 4375965
CRS: NAD83 Zone 11N
Elevation: 1759 m
Azimuth: 338 °
Dip: -63 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A strong gold grade over a narrow interval, contributing to the overall mineralization profile.

Positive factors

Strong gold grade (7.8 g/t Au is strong for underground)

Negative factors

Relatively narrow intercept length
True width is estimated as a range

Evidence · table

“7.8”

Context: 5.2

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-17Archimedes Underground · goldGrade: 5.4Grade Unit: g/tIntercept: 56.5 mView all details

Link to this fact

Identity

Hole ID: iAU26-17
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 5.4
Grade Unit: g/t
Intercept: 56.5 m
From: 93.8 m
To: 150.3 m
Intercept Depth: 93.8 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-17:93.8-150.3
Mining Method: underground

Location

Easting: 587415
Northing: 4375965
CRS: NAD83 Zone 11N
Elevation: 1759 m
Azimuth: 333 °
Dip: -56 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A moderate gold grade over a very significant width, indicating a substantial mineralized zone that could be economically viable.

Positive factors

Moderate gold grade (5.4 g/t Au is moderate for underground)
Very significant intercept length (56.5 m)
Exceptional GT product (305.1 g/t·m)

Negative factors

True width is estimated as a range

Evidence · table

“5.4”

Context: 56.5

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-17Archimedes Underground · goldGrade: 15Grade Unit: g/tIntercept: 8.8 mView all details

Link to this fact

Identity

Hole ID: iAU26-17
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 15
Grade Unit: g/t
Intercept: 8.8 m
From: 154.8 m
To: 163.6 m
Intercept Depth: 93.8 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-17:154.8-163.6
Mining Method: underground

Location

Easting: 587415
Northing: 4375965
CRS: NAD83 Zone 11N
Elevation: 1759 m
Azimuth: 333 °
Dip: -56 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: An exceptional high-grade gold intercept over a moderate width, indicating a high-value zone within the broader mineralization.

Positive factors

Exceptional gold grade (15.0 g/t Au is exceptional for underground)
Moderate intercept length (8.8 m)
High GT product (132 g/t·m)

Negative factors

True width is estimated as a range

Evidence · table

“15.0”

Context: 8.8

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-17Archimedes Underground · goldGrade: 3.2Grade Unit: g/tIntercept: 30.8 mView all details

Link to this fact

Identity

Hole ID: iAU26-17
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 3.2
Grade Unit: g/t
Intercept: 30.8 m
From: 163.6 m
To: 194.5 m
Intercept Depth: 93.8 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-17:163.6-194.5
Mining Method: underground

Location

Easting: 587415
Northing: 4375965
CRS: NAD83 Zone 11N
Elevation: 1759 m
Azimuth: 333 °
Dip: -56 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A weak gold grade over a significant width, indicating a broad zone of lower-grade mineralization.

Positive factors

Significant intercept length (30.8 m)

Negative factors

Weak gold grade (3.2 g/t Au is weak for underground)
True width is estimated as a range

Evidence · table

“3.2”

Context: 30.8

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-18Archimedes Underground · goldGrade: 6.9Grade Unit: g/tIntercept: 7.7 mView all details

Link to this fact

Identity

Hole ID: iAU26-18
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 6.9
Grade Unit: g/t
Intercept: 7.7 m
From: 144.5 m
To: 152.2 m
Intercept Depth: 144.5 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-18:144.5-152.2
Mining Method: underground

Location

Easting: 587415
Northing: 4375965
CRS: NAD83 Zone 11N
Elevation: 1759 m
Azimuth: 327 °
Dip: -66 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A strong gold grade over a moderate interval, confirming mineralization in an infill drilling program.

Positive factors

Strong gold grade (6.9 g/t Au is strong for underground)

Negative factors

True width is estimated as a range

Evidence · table

“6.9”

Context: 7.7

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-19Archimedes Underground · goldGrade: 7.9Grade Unit: g/tIntercept: 3.5 mView all details

Link to this fact

Identity

Hole ID: iAU26-19
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 7.9
Grade Unit: g/t
Intercept: 3.5 m
From: 136.2 m
To: 139.8 m
Intercept Depth: 136.2 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-19:136.2-139.8
Mining Method: underground

Location

Easting: 587415
Northing: 4375965
CRS: NAD83 Zone 11N
Elevation: 1759 m
Azimuth: 320 °
Dip: -54 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A strong gold grade over a narrow interval, indicating localized high-grade mineralization.

Positive factors

Strong gold grade (7.9 g/t Au is strong for underground)

Negative factors

Relatively narrow intercept length
True width is estimated as a range

Evidence · table

“7.9”

Context: 3.5

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-19Archimedes Underground · goldGrade: 4.5Grade Unit: g/tIntercept: 23.7 mView all details

Link to this fact

Identity

Hole ID: iAU26-19
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 4.5
Grade Unit: g/t
Intercept: 23.7 m
From: 160.8 m
To: 184.5 m
Intercept Depth: 136.2 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-19:160.8-184.5
Mining Method: underground

Location

Easting: 587415
Northing: 4375965
CRS: NAD83 Zone 11N
Elevation: 1759 m
Azimuth: 320 °
Dip: -54 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A moderate gold grade over a significant width, indicating a broad zone of mineralization.

Positive factors

Moderate gold grade (4.5 g/t Au is moderate for underground)
Significant intercept length (23.7 m)

Negative factors

True width is estimated as a range

Evidence · table

“4.5”

Context: 23.7

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-22Archimedes Underground · goldGrade: 8.1Grade Unit: g/tIntercept: 21.6 mView all details

Link to this fact

Identity

Hole ID: iAU26-22
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 8.1
Grade Unit: g/t
Intercept: 21.6 m
From: 119.9 m
To: 141.5 m
Intercept Depth: 119.9 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-22:119.9-141.5
Mining Method: underground

Location

Easting: 587354
Northing: 4375817
CRS: NAD83 Zone 11N
Elevation: 1779 m
Azimuth: 311 °
Dip: -42 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A strong gold grade over a significant width, indicating good continuity and potential for economic extraction in an underground setting.

Positive factors

Strong gold grade (8.1 g/t Au is strong for underground)
Significant intercept length (21.6 m)
High GT product (174.96 g/t·m)

Negative factors

True width is estimated as a range

Evidence · table

“8.1”

Context: 21.6

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-22Archimedes Underground · goldGrade: 2.2Grade Unit: g/tIntercept: 14.7 mView all details

Link to this fact

Identity

Hole ID: iAU26-22
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 2.2
Grade Unit: g/t
Intercept: 14.7 m
From: 141.5 m
To: 156.2 m
Intercept Depth: 119.9 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-22:141.5-156.2
Mining Method: underground

Location

Easting: 587354
Northing: 4375817
CRS: NAD83 Zone 11N
Elevation: 1779 m
Azimuth: 311 °
Dip: -42 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A weak gold grade over a moderate interval, indicating some mineralization but not a high-priority target for underground mining.

Negative factors

Weak gold grade (2.2 g/t Au is below weak for underground)
True width is estimated as a range

Evidence · table

“2.2”

Context: 14.7

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-22Archimedes Underground · goldGrade: 10.4Grade Unit: g/tIntercept: 4.8 mView all details

Link to this fact

Identity

Hole ID: iAU26-22
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 10.4
Grade Unit: g/t
Intercept: 4.8 m
From: 171.2 m
To: 175.9 m
Intercept Depth: 119.9 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-22:171.2-175.9
Mining Method: underground

Location

Easting: 587354
Northing: 4375817
CRS: NAD83 Zone 11N
Elevation: 1779 m
Azimuth: 311 °
Dip: -42 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A strong gold grade over a narrow interval, indicating localized high-grade mineralization.

Positive factors

Strong gold grade (10.4 g/t Au is strong for underground)

Negative factors

Relatively narrow intercept length
True width is estimated as a range

Evidence · table

“10.4”

Context: 4.8

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-23Archimedes Underground · goldGrade: 15.8Grade Unit: g/tIntercept: 6.7 mView all details

Link to this fact

Identity

Hole ID: iAU26-23
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 15.8
Grade Unit: g/t
Intercept: 6.7 m
From: 123 m
To: 129.8 m
Intercept Depth: 123 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-23:123-129.8
Mining Method: underground

Location

Easting: 587354
Northing: 4375817
CRS: NAD83 Zone 11N
Elevation: 1779 m
Azimuth: 322 °
Dip: -43 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: An exceptional high-grade gold intercept over a moderate width, indicating a high-value zone within the mineralization.

Positive factors

Exceptional gold grade (15.8 g/t Au is exceptional for underground)
Moderate intercept length (6.7 m)
High GT product (105.86 g/t·m)

Negative factors

True width is estimated as a range

Evidence · table

“15.8”

Context: 6.7

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-23Archimedes Underground · goldGrade: 2.8Grade Unit: g/tIntercept: 15.5 mView all details

Link to this fact

Identity

Hole ID: iAU26-23
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 2.8
Grade Unit: g/t
Intercept: 15.5 m
From: 153.3 m
To: 168.7 m
Intercept Depth: 123 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-23:153.3-168.7
Mining Method: underground

Location

Easting: 587354
Northing: 4375817
CRS: NAD83 Zone 11N
Elevation: 1779 m
Azimuth: 322 °
Dip: -43 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A weak gold grade over a moderate interval, indicating some mineralization but not a high-priority target for underground mining.

Positive factors

Moderate intercept length (15.5 m)

Negative factors

Weak gold grade (2.8 g/t Au is weak for underground)
True width is estimated as a range

Evidence · table

“2.8”

Context: 15.5

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

iAU26-25Archimedes Underground · goldGrade: 11.9Grade Unit: g/tIntercept: 1.8 mView all details

Link to this fact

Identity

Hole ID: iAU26-25
Project: Archimedes Underground
Commodity: gold
Region: usa_nv
Reported Region: usa_nv
Ticker: IAU

Geometry

Grade: 11.9
Grade Unit: g/t
Intercept: 1.8 m
From: 187.5 m
To: 189.3 m
Intercept Depth: 187.5 m

Classification

Deposit Type: orogenic
Program: infill
Sample Type: drill
Group ID: iAU26-25:187.5-189.3
Mining Method: underground

Location

Easting: 587354
Northing: 4375817
CRS: NAD83 Zone 11N
Elevation: 1779 m
Azimuth: 270 °
Dip: -36 °
Loc. Confidence: high
Loc. Source: document

QA/QC

Laboratory: MSALABS (MSA)
QA/QC Disclosed: Yes
Lab Certified: Yes
QP Signed: Yes
QA/QC Methods: standards, blanks, duplicates

Review

Needs Review: No
Interp. Status: scored
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A strong gold grade over a very narrow interval, indicating localized high-grade mineralization.

Positive factors

Strong gold grade (11.9 g/t Au is strong for underground)

Negative factors

Very narrow intercept length
True width is estimated as a range

Evidence · table

“11.9”

Context: 1.8

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

Resource Estimates (12)

indicatedArchimedes Underground Project · goldTonnes: 899000Grade: 6.9Grade Unit: g/tContained Metal: 199Contained Unit: kozView all details

Link to this fact

Identity

Project: Archimedes Underground Project
Commodity: gold
Region: usa_nv
Reported Region: Nevada
Ticker: IAU

Resource scope

Estimate type: resource
Effective date: 2024-12-31T00:00:00.000Z
Reporting standards: ni_43_101, sec_sk1300
QP Signed: Yes
Qualified person names: Paul Chawrun P.Eng., Tyler Hill CPG., Practical Mining LLC
Resource group id: resource:3e869afc0017d75f52e8
Deposit or zone: 426
Mining method: combined

Resource Data

Category: indicated
Tonnes: 899000
Grade: 6.9
Grade Unit: g/t
Contained Metal: 199
Contained Unit: koz
Cutoff Grade: 5.06
Cutoff Unit: g/t Au

Prior Estimate

Resource Date: 2025-12-31

Metal Equivalent

Assumptions Disclosed: Yes

Location

Loc. Confidence: inferred

Review

Needs Review: No
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A strong indicated gold resource for the 426 zone, providing good confidence for mine planning and development.

Positive factors

High-grade gold resource (6.9 g/t Au is strong for underground)
Indicated category provides good confidence
QP/CP signed and compliant with NI 43-101 and S-K 1300

Evidence · table

“6.9”

Context: 899

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

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

indicatedArchimedes Underground Project · silverTonnes: 899000Grade: 0.8Grade Unit: g/tContained Metal: 22Contained Unit: kozView all details

Link to this fact

Identity

Project: Archimedes Underground Project
Commodity: silver
Region: usa_nv
Reported Region: Nevada
Ticker: IAU

Resource scope

Estimate type: resource
Effective date: 2024-12-31T00:00:00.000Z
Reporting standards: ni_43_101, sec_sk1300
QP Signed: Yes
Qualified person names: Paul Chawrun P.Eng., Tyler Hill CPG., Practical Mining LLC
Resource group id: resource:3e869afc0017d75f52e8
Deposit or zone: 426
Mining method: combined

Resource Data

Category: indicated
Tonnes: 899000
Grade: 0.8
Grade Unit: g/t
Contained Metal: 22
Contained Unit: koz
Cutoff Grade: 5.06
Cutoff Unit: g/t Au

Prior Estimate

Resource Date: 2025-12-31

Metal Equivalent

Assumptions Disclosed: Yes

Location

Loc. Confidence: inferred

Review

Needs Review: No
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A very low-grade silver component in the indicated resource, likely a byproduct with minimal economic impact.

Negative factors

Very low silver grade (0.8 g/t Ag is below weak for silver)
Low contained silver

Evidence · table

“0.8”

Context: 899

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

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

indicatedArchimedes Underground Project · goldTonnes: 892000Grade: 8.3Grade Unit: g/tContained Metal: 237Contained Unit: kozView all details

Link to this fact

Identity

Project: Archimedes Underground Project
Commodity: gold
Region: usa_nv
Reported Region: Nevada
Ticker: IAU

Resource scope

Estimate type: resource
Effective date: 2024-12-31T00:00:00.000Z
Reporting standards: ni_43_101, sec_sk1300
QP Signed: Yes
Qualified person names: Paul Chawrun P.Eng., Tyler Hill CPG., Practical Mining LLC
Resource group id: resource:5b355af35ea0923fd1ea
Deposit or zone: Ruby Deeps
Mining method: combined

Resource Data

Category: indicated
Tonnes: 892000
Grade: 8.3
Grade Unit: g/t
Contained Metal: 237
Contained Unit: koz
Cutoff Grade: 5.48
Cutoff Unit: g/t Au

Prior Estimate

Resource Date: 2025-12-31

Metal Equivalent

Assumptions Disclosed: Yes

Location

Loc. Confidence: inferred

Review

Needs Review: No
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A strong indicated gold resource for the Ruby Deeps zone, providing good confidence for mine planning and development.

Positive factors

High-grade gold resource (8.3 g/t Au is strong for underground)
Indicated category provides good confidence
QP/CP signed and compliant with NI 43-101 and S-K 1300

Evidence · table

“8.3”

Context: 892

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

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

indicatedArchimedes Underground Project · silverTonnes: 892000Grade: 2.4Grade Unit: g/tContained Metal: 69Contained Unit: kozView all details

Link to this fact

Identity

Project: Archimedes Underground Project
Commodity: silver
Region: usa_nv
Reported Region: Nevada
Ticker: IAU

Resource scope

Estimate type: resource
Effective date: 2024-12-31T00:00:00.000Z
Reporting standards: ni_43_101, sec_sk1300
QP Signed: Yes
Qualified person names: Paul Chawrun P.Eng., Tyler Hill CPG., Practical Mining LLC
Resource group id: resource:5b355af35ea0923fd1ea
Deposit or zone: Ruby Deeps
Mining method: combined

Resource Data

Category: indicated
Tonnes: 892000
Grade: 2.4
Grade Unit: g/t
Contained Metal: 69
Contained Unit: koz
Cutoff Grade: 5.48
Cutoff Unit: g/t Au

Prior Estimate

Resource Date: 2025-12-31

Metal Equivalent

Assumptions Disclosed: Yes

Location

Loc. Confidence: inferred

Review

Needs Review: No
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A low-grade silver component in the indicated resource, likely a byproduct with minor economic impact.

Negative factors

Low silver grade (2.4 g/t Ag is below weak for silver)

Evidence · table

“2.4”

Context: 892

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

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

indicatedArchimedes Underground Project · goldTonnes: 1791000Grade: 7.6Grade Unit: g/tContained Metal: 436000Contained Unit: ozView all details

Link to this fact

Identity

Project: Archimedes Underground Project
Commodity: gold
Region: usa_nv
Reported Region: Nevada
Ticker: IAU

Resource scope

Estimate type: resource
Effective date: 2024-12-31T00:00:00.000Z
Reporting standards: ni_43_101, sec_sk1300
QP Signed: Yes
Qualified person names: Paul Chawrun P.Eng., Tyler Hill CPG., Practical Mining LLC
Resource group id: resource:c273c32cbf01c4fd2c53
Deposit or zone: Total Indicated
Mining method: combined

Resource Data

Category: indicated
Tonnes: 1791000
Grade: 7.6
Grade Unit: g/t
Contained Metal: 436000
Contained Unit: oz

Prior Estimate

Resource Date: 2025-12-31

Metal Equivalent

Assumptions Disclosed: Yes

Location

Loc. Confidence: inferred

Review

Needs Review: No
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A significant total indicated gold resource for Archimedes, providing a strong foundation for economic studies and mine development.

Positive factors

High-grade gold resource (7.6 g/t Au is strong for underground)
Indicated category provides good confidence
QP/CP signed and compliant with NI 43-101 and S-K 1300

Evidence · table

“7.6”

Context: 1,791

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

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

indicatedArchimedes Underground Project · silverTonnes: 1791000Grade: 1.6Grade Unit: g/tContained Metal: 92Contained Unit: kozView all details

Link to this fact

Identity

Project: Archimedes Underground Project
Commodity: silver
Region: usa_nv
Reported Region: Nevada
Ticker: IAU

Resource scope

Estimate type: resource
Effective date: 2024-12-31T00:00:00.000Z
Reporting standards: ni_43_101, sec_sk1300
QP Signed: Yes
Qualified person names: Paul Chawrun P.Eng., Tyler Hill CPG., Practical Mining LLC
Resource group id: resource:c273c32cbf01c4fd2c53
Deposit or zone: Total Indicated
Mining method: combined

Resource Data

Category: indicated
Tonnes: 1791000
Grade: 1.6
Grade Unit: g/t
Contained Metal: 92
Contained Unit: koz

Prior Estimate

Resource Date: 2025-12-31

Metal Equivalent

Assumptions Disclosed: Yes

Location

Loc. Confidence: inferred

Review

Needs Review: No
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A very low-grade silver component in the total indicated resource, likely a byproduct with minimal economic impact.

Negative factors

Very low silver grade (1.6 g/t Ag is below weak for silver)
Low contained silver

Evidence · table

“1.6”

Context: 1,791

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

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

inferredArchimedes Underground Project · goldTonnes: 1038000Grade: 6.6Grade Unit: g/tContained Metal: 219Contained Unit: kozView all details

Link to this fact

Identity

Project: Archimedes Underground Project
Commodity: gold
Region: usa_nv
Reported Region: Nevada
Ticker: IAU

Resource scope

Estimate type: resource
Effective date: 2024-12-31T00:00:00.000Z
Reporting standards: ni_43_101, sec_sk1300
QP Signed: Yes
Qualified person names: Paul Chawrun P.Eng., Tyler Hill CPG., Practical Mining LLC
Resource group id: resource:ebc93741185d618d099c
Deposit or zone: 426
Mining method: combined

Resource Data

Category: inferred
Tonnes: 1038000
Grade: 6.6
Grade Unit: g/t
Contained Metal: 219
Contained Unit: koz
Cutoff Grade: 5.06
Cutoff Unit: g/t Au

Prior Estimate

Resource Date: 2025-12-31

Metal Equivalent

Assumptions Disclosed: Yes

Location

Loc. Confidence: inferred

Review

Needs Review: No
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A strong inferred gold resource for the 426 zone, indicating potential for future conversion to higher confidence categories with further drilling.

Positive factors

High-grade gold resource (6.6 g/t Au is strong for underground)
QP/CP signed and compliant with NI 43-101 and S-K 1300

Negative factors

Inferred category has lower geological confidence

Evidence · table

“6.6”

Context: 1,038

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

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

inferredArchimedes Underground Project · silverTonnes: 1038000Grade: 1.2Grade Unit: g/tContained Metal: 40Contained Unit: kozView all details

Link to this fact

Identity

Project: Archimedes Underground Project
Commodity: silver
Region: usa_nv
Reported Region: Nevada
Ticker: IAU

Resource scope

Estimate type: resource
Effective date: 2024-12-31T00:00:00.000Z
Reporting standards: ni_43_101, sec_sk1300
QP Signed: Yes
Qualified person names: Paul Chawrun P.Eng., Tyler Hill CPG., Practical Mining LLC
Resource group id: resource:ebc93741185d618d099c
Deposit or zone: 426
Mining method: combined

Resource Data

Category: inferred
Tonnes: 1038000
Grade: 1.2
Grade Unit: g/t
Contained Metal: 40
Contained Unit: koz
Cutoff Grade: 5.06
Cutoff Unit: g/t Au

Prior Estimate

Resource Date: 2025-12-31

Metal Equivalent

Assumptions Disclosed: Yes

Location

Loc. Confidence: inferred

Review

Needs Review: No
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A very low-grade silver component in the inferred resource, likely a byproduct with minimal economic impact and lower confidence.

Negative factors

Very low silver grade (1.2 g/t Ag is below weak for silver)
Low contained silver
Inferred category has lower geological confidence

Evidence · table

“1.2”

Context: 1,038

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

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

inferredArchimedes Underground Project · goldTonnes: 3150000Grade: 7.6Grade Unit: g/tContained Metal: 769Contained Unit: kozView all details

Link to this fact

Identity

Project: Archimedes Underground Project
Commodity: gold
Region: usa_nv
Reported Region: Nevada
Ticker: IAU

Resource scope

Estimate type: resource
Effective date: 2024-12-31T00:00:00.000Z
Reporting standards: ni_43_101, sec_sk1300
QP Signed: Yes
Qualified person names: Paul Chawrun P.Eng., Tyler Hill CPG., Practical Mining LLC
Resource group id: resource:85f6218ab04d82d93afd
Deposit or zone: Ruby Deeps
Mining method: combined

Resource Data

Category: inferred
Tonnes: 3150000
Grade: 7.6
Grade Unit: g/t
Contained Metal: 769
Contained Unit: koz
Cutoff Grade: 5.48
Cutoff Unit: g/t Au

Prior Estimate

Resource Date: 2025-12-31

Metal Equivalent

Assumptions Disclosed: Yes

Location

Loc. Confidence: inferred

Review

Needs Review: No
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A large, high-grade inferred gold resource for the Ruby Deeps zone, representing significant exploration potential for future conversion.

Positive factors

High-grade gold resource (7.6 g/t Au is strong for underground)
Significant tonnage in inferred category
QP/CP signed and compliant with NI 43-101 and S-K 1300

Negative factors

Inferred category has lower geological confidence

Evidence · table

“7.6”

Context: 3,150

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

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

inferredArchimedes Underground Project · silverTonnes: 3150000Grade: 2.4Grade Unit: g/tContained Metal: 246Contained Unit: kozView all details

Link to this fact

Identity

Project: Archimedes Underground Project
Commodity: silver
Region: usa_nv
Reported Region: Nevada
Ticker: IAU

Resource scope

Estimate type: resource
Effective date: 2024-12-31T00:00:00.000Z
Reporting standards: ni_43_101, sec_sk1300
QP Signed: Yes
Qualified person names: Paul Chawrun P.Eng., Tyler Hill CPG., Practical Mining LLC
Resource group id: resource:85f6218ab04d82d93afd
Deposit or zone: Ruby Deeps
Mining method: combined

Resource Data

Category: inferred
Tonnes: 3150000
Grade: 2.4
Grade Unit: g/t
Contained Metal: 246
Contained Unit: koz
Cutoff Grade: 5.48
Cutoff Unit: g/t Au

Prior Estimate

Resource Date: 2025-12-31

Metal Equivalent

Assumptions Disclosed: Yes

Location

Loc. Confidence: inferred

Review

Needs Review: No
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A low-grade silver component in the inferred resource, likely a byproduct with minor economic impact and lower confidence.

Negative factors

Low silver grade (2.4 g/t Ag is below weak for silver)
Inferred category has lower geological confidence

Evidence · table

“2.4”

Context: 3,150

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

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

inferredArchimedes Underground Project · goldTonnes: 4188000Grade: 7.3Grade Unit: g/tContained Metal: 988000Contained Unit: ozView all details

Link to this fact

Identity

Project: Archimedes Underground Project
Commodity: gold
Region: usa_nv
Reported Region: Nevada
Ticker: IAU

Resource scope

Estimate type: resource
Effective date: 2024-12-31T00:00:00.000Z
Reporting standards: ni_43_101, sec_sk1300
QP Signed: Yes
Qualified person names: Paul Chawrun P.Eng., Tyler Hill CPG., Practical Mining LLC
Resource group id: resource:ee5697f76fd20a205fc5
Deposit or zone: Total Inferred
Mining method: combined

Resource Data

Category: inferred
Tonnes: 4188000
Grade: 7.3
Grade Unit: g/t
Contained Metal: 988000
Contained Unit: oz

Prior Estimate

Resource Date: 2025-12-31

Metal Equivalent

Assumptions Disclosed: Yes

Location

Loc. Confidence: inferred

Review

Needs Review: No
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A substantial total inferred gold resource for Archimedes, indicating significant future potential but requiring further drilling to upgrade confidence.

Positive factors

High-grade gold resource (7.3 g/t Au is strong for underground)
Significant total inferred tonnage
QP/CP signed and compliant with NI 43-101 and S-K 1300

Negative factors

Inferred category has lower geological confidence

Evidence · table

“7.3”

Context: 4,188

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

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

inferredArchimedes Underground Project · silverTonnes: 4188000Grade: 2.1Grade Unit: g/tContained Metal: 286Contained Unit: kozView all details

Link to this fact

Identity

Project: Archimedes Underground Project
Commodity: silver
Region: usa_nv
Reported Region: Nevada
Ticker: IAU

Resource scope

Estimate type: resource
Effective date: 2024-12-31T00:00:00.000Z
Reporting standards: ni_43_101, sec_sk1300
QP Signed: Yes
Qualified person names: Paul Chawrun P.Eng., Tyler Hill CPG., Practical Mining LLC
Resource group id: resource:ee5697f76fd20a205fc5
Deposit or zone: Total Inferred
Mining method: combined

Resource Data

Category: inferred
Tonnes: 4188000
Grade: 2.1
Grade Unit: g/t
Contained Metal: 286
Contained Unit: koz

Prior Estimate

Resource Date: 2025-12-31

Metal Equivalent

Assumptions Disclosed: Yes

Location

Loc. Confidence: inferred

Review

Needs Review: No
Historical: No

Dates

Event date: 2026-06-26T00:00:00.000Z

Reasoning: A low-grade silver component in the total inferred resource, likely a byproduct with minimal economic impact and lower confidence.

Negative factors

Low silver grade (2.1 g/t Ag is below weak for silver)
Inferred category has lower geological confidence

Evidence · table

“2.1”

Context: 4,188

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

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

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.