Blackrock Silver Announces Updated Preliminary Economic Assessment for Its Tonopah West Project in Nevada; +10 Year Mine Life Fortified by 90% Increase in Indicated Mineral Resources
Original announcement by tmx on
- Company
- Blackrock Silver Corp.
- Ticker
- BKRRF
- Exchange
- TSX
- Region
- Nevada
- Primary commodity
- Silver
- Secondary commodities
- Gold
- Document categories
- Resource update, Metallurgy, Other
- Extracted
- 2026-08-21 02:26:49 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Blackrock Silver announced an updated Preliminary Economic Assessment (PEA) for its Tonopah West Project in Nevada, highlighting a 90% increase in indicated mineral resources. The PEA outlines robust economics with a base case after-tax NPV of US$437 million and an IRR of 28% over an 11.2-year mine life, based on US$2,700/oz gold and US$31/oz silver prices. The project also demonstrates excellent metallurgical recoveries of 91.6% for silver and 96.3% for gold, with significant upside potential at higher metal prices.
Reasoning: The updated PEA and MRE for Tonopah West show a substantial 90% increase in indicated silver equivalent resources, leading to robust economics with a 28% IRR and $437 million NPV at base case prices, and even stronger economics at consensus metal prices. High metallurgical recoveries and NI 43-101 compliance further de-risk the project.
Positive factors
- significant_indicated_resource_increase
- robust_economic_metrics
- high_recoveries
- strong_leverage_to_metal_prices
- qp_signoff
- ni_43_101_compliant
Low confidence — this extraction should be reviewed alongside the original source.
Facts used in scoring: 47
Classification and evidence
Category Upgradepositive
Resource confidence improved — Inferred upgraded to Indicated, or Indicated to Measured. De-risking signal.
Why it applies: The document explicitly states a '90% increase over the previous mineral resource estimate' for indicated AgEq ounces, indicating a significant upgrade in resource confidence.
Evidence · text
“a 90% increase over the previous mineral resource estimate on Tonopah West dated effective August 25, 2025”
Contained Metal Growthpositive
True scale improvement — contained metal ounces/tonnes increased vs prior, accounting for both tonnage and grade changes.
Why it applies: The PEA highlights a '90% increase over the previous mineral resource estimate' for indicated AgEq ounces, directly implying a substantial growth in contained metal.
Evidence · text
“a 90% increase over the previous mineral resource estimate on Tonopah West dated effective August 25, 2025”
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 news release explicitly names multiple 'Qualified Persons' (as defined by NI 43-101) who were responsible for the PEA and MRE and have verified and approved the contents.
Evidence · text
“The "Qualified Persons" (as defined by NI 43-101) who were responsible for the PEA and MRE and who have verified and approved the contents of this news release are Robert H. Todd, P.E., of Minetech, Jeffery Bickel, C.P.G (AIPG) of RESPEC, Travis Manning, P.E., QP of Kappes, Cassiday & Associates, Thomas H. Bagan, P.E., MBA, SME-RM, an independent consulting mining engineer and Richard DeLong, QP of Westland Engineering and Environmental Inc.”
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: The PEA and MRE were prepared 'in accordance with National Instrument 43-101 - Standards of Disclosure for Mineral Projects'.
Evidence · text
“in accordance with National Instrument 43-101 - Standards of Disclosure for Mineral Projects (" NI 43-101 ")”
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: The document announces an 'Updated Preliminary Economic Assessment' and an 'updated mineral resource estimate', indicating a revision of existing estimates.
Evidence · text
“Blackrock Silver Announces Updated Preliminary Economic Assessment for Its Tonopah West Project in Nevada; +10 Year Mine Life Fortified by 90% Increase in Indicated Mineral Resources”
PFS-Supportingneutral
Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.
Why it applies: The resource estimate is prepared to support a Preliminary Economic Assessment (PEA), which is an early-stage study that precedes a Pre-Feasibility Study (PFS).
Evidence · text
“Blackrock Silver Announces Updated Preliminary Economic Assessment for Its Tonopah West Project in Nevada”
High Recoverypositive
Recovery at or above the exceptional band for the commodity and processing route.
Why it applies: The reported average recoveries of 91.6% for silver and 96.3% for gold are above the exceptional band for mill/CIL processing routes.
Evidence · text
“Realized average recoveries of 91.6% for silver and 96.3% for gold from a 3-stage crushing circuit and processing plant”
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: The cut-off grade of 140 g/t AgEq is clearly stated for the resource estimate.
Evidence · table
“140”
Context: 2,750
Metal Equivalent Opaquepositive · Story-specific tag
Metal equivalent grade reported without disclosing the price, recovery, or payability assumptions used.
Why it applies: The metal equivalent grade is reported with detailed assumptions for prices and recoveries for both Victor and non-Victor areas, making it transparent.
Evidence · text
“For non-Victor areas, the AgEq grade ratio used is 108:1 based on silver and gold prices of US$35/ounce and US$3,500/ounce, respectively, and recoveries for silver and gold of 88% and 95%, respectively. For the Victor area, the Silver Equivalent grade ratio used is 102:1 based on silver and gold prices of US$35/ounce and US$3,500/ounce, respectively, and recoveries for silver and gold of 96% and 98%, respectively.”
Indicated Resourcepositive
Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.
Why it applies: The document reports a significant portion of the resource in the Indicated category, which has reasonable geological confidence.
Evidence · table
“Indicated”
Context: 2,750
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: The document reports a substantial portion of the resource in the Inferred category, which is a speculative category.
Evidence · table
“Inferred”
Context: 5,538
Extracted facts
Stored fact records: 47. Some facts used in scoring do not have a stored record.
Resource Estimates (47)
indicatedTonopah West · goldTonnes: 2750000Grade: 2.25Grade Unit: g/tContained Metal: 199000Contained Unit: ozView all detailsHide details
Identity
- Project
- Tonopah West
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BKRRF
Resource Data
- Category
- indicated
- Tonnes
- 2750000
- Grade
- 2.25
- Grade Unit
- g/t
- Contained Metal
- 199000
- Contained Unit
- oz
- Cutoff Grade
- 140
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The indicated gold resource shows a good grade and significant contained metal, contributing to the overall 90% increase in indicated AgEq ounces, which is a strong de-risking signal for the project.
Positive factors
- category_upgrade
- contained_metal_growth
- grade_improvement
- qp_signed
- ni_43_101_compliant
Evidence · table
“2.25”
Context: 2,750
indicatedTonopah West · silverTonnes: 2750000Grade: 454.3Grade Unit: g/t AgEqContained Metal: 40159000Contained Unit: ozView all detailsHide details
Identity
- Project
- Tonopah West
- Commodity
- silver
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BKRRF
Resource Data
- Category
- indicated
- Tonnes
- 2750000
- Grade
- 454.3
- Grade Unit
- g/t AgEq
- Contained Metal
- 40159000
- Contained Unit
- oz
- Cutoff Grade
- 140
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The 90% increase in indicated silver equivalent ounces to 40.2 million ounces at a high grade of 454.3 g/t AgEq is a highly material and novel update, significantly de-risking the project and underpinning the robust PEA economics.
Positive factors
- category_upgrade
- contained_metal_growth
- grade_improvement
- qp_signed
- ni_43_101_compliant
Evidence · table
“454.3”
Context: 2,750
inferredTonopah West · goldTonnes: 5538000Grade: 2.62Grade Unit: g/tContained Metal: 467000Contained Unit: ozHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Tonopah West
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BKRRF
Resource Data
- Category
- inferred
- Tonnes
- 5538000
- Grade
- 2.62
- Grade Unit
- g/t
- Contained Metal
- 467000
- Contained Unit
- oz
- Cutoff Grade
- 140
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The inferred gold resource shows a good grade and substantial contained metal, indicating significant exploration upside potential for the project.
Positive factors
- contained_metal_growth
- qp_signed
- ni_43_101_compliant
Evidence · table
“2.62”
Context: 5,538
inferredTonopah West · silverTonnes: 5538000Grade: 465.8Grade Unit: g/t AgEqContained Metal: 82944000Contained Unit: ozView all detailsHide details
Identity
- Project
- Tonopah West
- Commodity
- silver
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BKRRF
Resource Data
- Category
- inferred
- Tonnes
- 5538000
- Grade
- 465.8
- Grade Unit
- g/t AgEq
- Contained Metal
- 82944000
- Contained Unit
- oz
- Cutoff Grade
- 140
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The inferred silver equivalent resource of 83 million ounces at a high grade of 465.8 g/t AgEq indicates significant exploration upside and potential for future resource conversion.
Positive factors
- contained_metal_growth
- qp_signed
- ni_43_101_compliant
Evidence · table
“465.8”
Context: 5,538
indicatedTonopah West · silverTonnes: 882000Grade: 525.2Grade Unit: g/t AgEqContained Metal: 14899000Contained Unit: ozView all detailsHide details
Identity
- Project
- Tonopah West
- Commodity
- silver
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BKRRF
Resource Data
- Category
- indicated
- Tonnes
- 882000
- Grade
- 525.2
- Grade Unit
- g/t AgEq
- Contained Metal
- 14899000
- Contained Unit
- oz
- Cutoff Grade
- 140
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The indicated silver equivalent resource in the Victor area shows a very high grade, contributing significantly to the overall indicated resource base.
Positive factors
- qp_signed
- ni_43_101_compliant
Evidence · table
“525.2”
Context: 882,000
indicatedTonopah West · goldTonnes: 882000Grade: 2.65Grade Unit: g/tContained Metal: 75000Contained Unit: ozView all detailsHide details
Identity
- Project
- Tonopah West
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BKRRF
Resource Data
- Category
- indicated
- Tonnes
- 882000
- Grade
- 2.65
- Grade Unit
- g/t
- Contained Metal
- 75000
- Contained Unit
- oz
- Cutoff Grade
- 140
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The indicated gold resource in the Victor area contributes to the overall indicated resource, showing good grades and contained metal.
Positive factors
- qp_signed
- ni_43_101_compliant
Evidence · table
“2.65”
Context: 882,000
inferredTonopah West · silverTonnes: 1854000Grade: 509.2Grade Unit: g/t AgEqContained Metal: 30354000Contained Unit: ozView all detailsHide details
Identity
- Project
- Tonopah West
- Commodity
- silver
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BKRRF
Resource Data
- Category
- inferred
- Tonnes
- 1854000
- Grade
- 509.2
- Grade Unit
- g/t AgEq
- Contained Metal
- 30354000
- Contained Unit
- oz
- Cutoff Grade
- 140
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The inferred silver equivalent resource in the Victor area shows a very high grade, indicating significant potential for future resource conversion.
Positive factors
- qp_signed
- ni_43_101_compliant
Evidence · table
“509.2”
Context: 1,854,000
inferredTonopah West · goldTonnes: 1854000Grade: 2.82Grade Unit: g/tContained Metal: 168000Contained Unit: ozView all detailsHide details
Identity
- Project
- Tonopah West
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BKRRF
Resource Data
- Category
- inferred
- Tonnes
- 1854000
- Grade
- 2.82
- Grade Unit
- g/t
- Contained Metal
- 168000
- Contained Unit
- oz
- Cutoff Grade
- 140
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The inferred gold resource in the Victor area adds to the overall resource base, showing good grades and contained metal, indicating future potential.
Positive factors
- qp_signed
- ni_43_101_compliant
Evidence · table
“2.82”
Context: 1,854,000
indicatedTonopah West · silverTonnes: 263000Grade: 339.4Grade Unit: g/t AgEqContained Metal: 2865000Contained Unit: ozView all detailsHide details
Identity
- Project
- Tonopah West
- Commodity
- silver
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BKRRF
Resource Data
- Category
- indicated
- Tonnes
- 263000
- Grade
- 339.4
- Grade Unit
- g/t AgEq
- Contained Metal
- 2865000
- Contained Unit
- oz
- Cutoff Grade
- 140
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The indicated silver equivalent resource in the DPB North area shows a good grade, contributing to the overall indicated resource base.
Positive factors
- qp_signed
- ni_43_101_compliant
Evidence · table
“339.4”
Context: 263,000
indicatedTonopah West · goldTonnes: 263000Grade: 1.79Grade Unit: g/tContained Metal: 15000Contained Unit: ozView all detailsHide details
Identity
- Project
- Tonopah West
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BKRRF
Resource Data
- Category
- indicated
- Tonnes
- 263000
- Grade
- 1.79
- Grade Unit
- g/t
- Contained Metal
- 15000
- Contained Unit
- oz
- Cutoff Grade
- 140
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The indicated gold resource in the DPB North area contributes to the overall indicated resource, showing a moderate grade and contained metal.
Positive factors
- qp_signed
- ni_43_101_compliant
Evidence · table
“1.79”
Context: 263,000
inferredTonopah West · silverTonnes: 1686000Grade: 482.9Grade Unit: g/t AgEqContained Metal: 26180000Contained Unit: ozView all detailsHide details
Identity
- Project
- Tonopah West
- Commodity
- silver
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BKRRF
Resource Data
- Category
- inferred
- Tonnes
- 1686000
- Grade
- 482.9
- Grade Unit
- g/t AgEq
- Contained Metal
- 26180000
- Contained Unit
- oz
- Cutoff Grade
- 140
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The inferred silver equivalent resource in the DPB North area shows a very high grade, indicating significant potential for future resource conversion.
Positive factors
- qp_signed
- ni_43_101_compliant
Evidence · table
“482.9”
Context: 1,686,000
inferredTonopah West · goldTonnes: 1686000Grade: 2.68Grade Unit: g/tContained Metal: 145000Contained Unit: ozView all detailsHide details
Identity
- Project
- Tonopah West
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BKRRF
Resource Data
- Category
- inferred
- Tonnes
- 1686000
- Grade
- 2.68
- Grade Unit
- g/t
- Contained Metal
- 145000
- Contained Unit
- oz
- Cutoff Grade
- 140
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The inferred gold resource in the DPB North area adds to the overall resource base, showing good grades and contained metal, indicating future potential.
Positive factors
- qp_signed
- ni_43_101_compliant
Evidence · table
“2.68”
Context: 1,686,000
indicatedTonopah West · silverTonnes: 1281000Grade: 442Grade Unit: g/t AgEqContained Metal: 18209000Contained Unit: ozView all detailsHide details
Identity
- Project
- Tonopah West
- Commodity
- silver
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BKRRF
Resource Data
- Category
- indicated
- Tonnes
- 1281000
- Grade
- 442
- Grade Unit
- g/t AgEq
- Contained Metal
- 18209000
- Contained Unit
- oz
- Cutoff Grade
- 140
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The indicated silver equivalent resource in the DPB South area shows a high grade, contributing significantly to the overall indicated resource base.
Positive factors
- qp_signed
- ni_43_101_compliant
Evidence · table
“442.0”
Context: 1,281,000
indicatedTonopah West · goldTonnes: 1281000Grade: 2.12Grade Unit: g/tContained Metal: 87000Contained Unit: ozView all detailsHide details
Identity
- Project
- Tonopah West
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BKRRF
Resource Data
- Category
- indicated
- Tonnes
- 1281000
- Grade
- 2.12
- Grade Unit
- g/t
- Contained Metal
- 87000
- Contained Unit
- oz
- Cutoff Grade
- 140
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The indicated gold resource in the DPB South area contributes to the overall indicated resource, showing good grades and contained metal.
Positive factors
- qp_signed
- ni_43_101_compliant
Evidence · table
“2.12”
Context: 1,281,000
inferredTonopah West · silverTonnes: 485000Grade: 305.5Grade Unit: g/t AgEqContained Metal: 4763000Contained Unit: ozView all detailsHide details
Identity
- Project
- Tonopah West
- Commodity
- silver
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BKRRF
Resource Data
- Category
- inferred
- Tonnes
- 485000
- Grade
- 305.5
- Grade Unit
- g/t AgEq
- Contained Metal
- 4763000
- Contained Unit
- oz
- Cutoff Grade
- 140
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The inferred silver equivalent resource in the DPB South area shows a good grade, indicating future potential for resource conversion.
Positive factors
- qp_signed
- ni_43_101_compliant
Evidence · table
“305.5”
Context: 485,000
inferredTonopah West · goldTonnes: 485000Grade: 2.02Grade Unit: g/tContained Metal: 31000Contained Unit: ozView all detailsHide details
Identity
- Project
- Tonopah West
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BKRRF
Resource Data
- Category
- inferred
- Tonnes
- 485000
- Grade
- 2.02
- Grade Unit
- g/t
- Contained Metal
- 31000
- Contained Unit
- oz
- Cutoff Grade
- 140
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The inferred gold resource in the DPB South area adds to the overall resource base, showing a moderate grade and contained metal, indicating future potential.
Positive factors
- qp_signed
- ni_43_101_compliant
Evidence · table
“2.02”
Context: 485,000
indicatedTonopah West · silverTonnes: 323000Grade: 402.8Grade Unit: g/t AgEqContained Metal: 4186000Contained Unit: ozView all detailsHide details
Identity
- Project
- Tonopah West
- Commodity
- silver
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BKRRF
Resource Data
- Category
- indicated
- Tonnes
- 323000
- Grade
- 402.8
- Grade Unit
- g/t AgEq
- Contained Metal
- 4186000
- Contained Unit
- oz
- Cutoff Grade
- 140
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The indicated silver equivalent resource in the NW Step Out area shows a high grade, contributing to the overall indicated resource base.
Positive factors
- qp_signed
- ni_43_101_compliant
Evidence · table
“402.8”
Context: 323,000
indicatedTonopah West · goldTonnes: 323000Grade: 2.03Grade Unit: g/tContained Metal: 21000Contained Unit: ozView all detailsHide details
Identity
- Project
- Tonopah West
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BKRRF
Resource Data
- Category
- indicated
- Tonnes
- 323000
- Grade
- 2.03
- Grade Unit
- g/t
- Contained Metal
- 21000
- Contained Unit
- oz
- Cutoff Grade
- 140
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The indicated gold resource in the NW Step Out area contributes to the overall indicated resource, showing good grades and contained metal.
Positive factors
- qp_signed
- ni_43_101_compliant
Evidence · table
“2.03”
Context: 323,000
inferredTonopah West · silverTonnes: 622000Grade: 327Grade Unit: g/t AgEqContained Metal: 6538000Contained Unit: ozView all detailsHide details
Identity
- Project
- Tonopah West
- Commodity
- silver
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BKRRF
Resource Data
- Category
- inferred
- Tonnes
- 622000
- Grade
- 327
- Grade Unit
- g/t AgEq
- Contained Metal
- 6538000
- Contained Unit
- oz
- Cutoff Grade
- 140
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The inferred silver equivalent resource in the NW Step Out area shows a good grade, indicating future potential for resource conversion.
Positive factors
- qp_signed
- ni_43_101_compliant
Evidence · table
“327.0”
Context: 622,000
inferredTonopah West · goldTonnes: 622000Grade: 1.67Grade Unit: g/tContained Metal: 33000Contained Unit: ozView all detailsHide details
Identity
- Project
- Tonopah West
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BKRRF
Resource Data
- Category
- inferred
- Tonnes
- 622000
- Grade
- 1.67
- Grade Unit
- g/t
- Contained Metal
- 33000
- Contained Unit
- oz
- Cutoff Grade
- 140
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The inferred gold resource in the NW Step Out area adds to the overall resource base, showing moderate grades and contained metal, indicating future potential.
Positive factors
- qp_signed
- ni_43_101_compliant
Evidence · table
“1.67”
Context: 622,000
inferredTonopah West · silverTonnes: 891000Grade: 527.3Grade Unit: g/t AgEqContained Metal: 15109000Contained Unit: ozView all detailsHide details
Identity
- Project
- Tonopah West
- Commodity
- silver
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BKRRF
Resource Data
- Category
- inferred
- Tonnes
- 891000
- Grade
- 527.3
- Grade Unit
- g/t AgEq
- Contained Metal
- 15109000
- Contained Unit
- oz
- Cutoff Grade
- 140
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The inferred silver equivalent resource in the East Extension area shows a very high grade, indicating significant potential for future resource conversion.
Positive factors
- qp_signed
- ni_43_101_compliant
Evidence · table
“527.3”
Context: 891,000
inferredTonopah West · goldTonnes: 891000Grade: 3.1Grade Unit: g/tContained Metal: 89000Contained Unit: ozView all detailsHide details
Identity
- Project
- Tonopah West
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BKRRF
Resource Data
- Category
- inferred
- Tonnes
- 891000
- Grade
- 3.1
- Grade Unit
- g/t
- Contained Metal
- 89000
- Contained Unit
- oz
- Cutoff Grade
- 140
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The inferred gold resource in the East Extension area adds to the overall resource base, showing high grades and contained metal, indicating future potential.
Positive factors
- qp_signed
- ni_43_101_compliant
Evidence · table
“3.10”
Context: 891,000
Fact 23Tonopah West · silverView all detailsHide details
Identity
- Project
- Tonopah West
- Commodity
- silver
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BKRRF
Lab
- Laboratory
- Kappes, Cassiday and Associates
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The reported silver recovery of 91.6% is high for a conventional processing plant, indicating favorable metallurgy and contributing positively to project economics.
Positive factors
- high_recovery
- qp_signed
Evidence · text
“Life-of-mine metal recovery averages 91.6% for silver”
Fact 24Tonopah West · goldView all detailsHide details
Identity
- Project
- Tonopah West
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BKRRF
Lab
- Laboratory
- Kappes, Cassiday and Associates
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The reported gold recovery of 96.3% is very high for a conventional processing plant, indicating excellent metallurgy and significantly boosting project economics.
Positive factors
- high_recovery
- qp_signed
Evidence · text
“Life-of-mine metal recovery averages 91.6% for silver and 96.3% for gold”
Fact 25Tonopah WestView all detailsHide details
Identity
- Project
- Tonopah West
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BKRRF
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The project shows exceptional leverage to higher metal prices, with a significantly increased NPV and IRR at the 1-year analyst consensus forecast, highlighting strong upside potential.
Positive factors
- exceptional_leverage_to_metal_prices
- robust_economic_metrics
- qp_signed
Evidence · text
“Assessed at the 1-year analyst consensus forecast for gold and silver prices (US$66.90/oz Ag and US$4,554/oz Au), the Project delivers US$1.55B after-tax NPV 5% , a 79% IRR, and a 1.4-year payback”
indicatedsilverTonnes: 882000Grade: 255.2Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- BKRRF
Resource Data
- Category
- indicated
- Tonnes
- 882000
- Grade
- 255.2
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The indicated gold resource shows a good grade and significant contained metal, contributing to the overall 90% increase in indicated AgEq ounces, which is a strong de-risking signal for the project. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- category_upgrade
- contained_metal_growth
- grade_improvement
- qp_signed
- ni_43_101_compliant
Evidence · table
“255.2”
Context: 882,000
indicatedgoldTonnes: 882000Grade: 2.65Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- BKRRF
Resource Data
- Category
- indicated
- Tonnes
- 882000
- Grade
- 2.65
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The indicated gold resource shows a good grade and significant contained metal, contributing to the overall 90% increase in indicated AgEq ounces, which is a strong de-risking signal for the project. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- category_upgrade
- contained_metal_growth
- grade_improvement
- qp_signed
- ni_43_101_compliant
Evidence · table
“2.65”
Context: 882,000
inferredsilverTonnes: 1854000Grade: 221.7Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- BKRRF
Resource Data
- Category
- inferred
- Tonnes
- 1854000
- Grade
- 221.7
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The inferred gold resource shows a good grade and substantial contained metal, indicating significant exploration upside potential for the project. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- contained_metal_growth
- qp_signed
- ni_43_101_compliant
Evidence · table
“221.7”
Context: 1,854,000
inferredgoldTonnes: 1854000Grade: 2.82Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- BKRRF
Resource Data
- Category
- inferred
- Tonnes
- 1854000
- Grade
- 2.82
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The inferred gold resource shows a good grade and substantial contained metal, indicating significant exploration upside potential for the project. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- contained_metal_growth
- qp_signed
- ni_43_101_compliant
Evidence · table
“2.82”
Context: 1,854,000
indicatedsilverTonnes: 263000Grade: 146.1Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- BKRRF
Resource Data
- Category
- indicated
- Tonnes
- 263000
- Grade
- 146.1
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The indicated gold resource shows a good grade and significant contained metal, contributing to the overall 90% increase in indicated AgEq ounces, which is a strong de-risking signal for the project. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- category_upgrade
- contained_metal_growth
- grade_improvement
- qp_signed
- ni_43_101_compliant
Evidence · table
“146.1”
Context: 263,000
indicatedgoldTonnes: 263000Grade: 1.79Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- BKRRF
Resource Data
- Category
- indicated
- Tonnes
- 263000
- Grade
- 1.79
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The indicated gold resource shows a good grade and significant contained metal, contributing to the overall 90% increase in indicated AgEq ounces, which is a strong de-risking signal for the project. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- category_upgrade
- contained_metal_growth
- grade_improvement
- qp_signed
- ni_43_101_compliant
Evidence · table
“1.79”
Context: 263,000
inferredsilverTonnes: 1686000Grade: 193.9Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- BKRRF
Resource Data
- Category
- inferred
- Tonnes
- 1686000
- Grade
- 193.9
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The inferred gold resource shows a good grade and substantial contained metal, indicating significant exploration upside potential for the project. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- contained_metal_growth
- qp_signed
- ni_43_101_compliant
Evidence · table
“193.9”
Context: 1,686,000
inferredgoldTonnes: 1686000Grade: 2.68Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- BKRRF
Resource Data
- Category
- inferred
- Tonnes
- 1686000
- Grade
- 2.68
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The inferred gold resource shows a good grade and substantial contained metal, indicating significant exploration upside potential for the project. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- contained_metal_growth
- qp_signed
- ni_43_101_compliant
Evidence · table
“2.68”
Context: 1,686,000
indicatedsilverTonnes: 1281000Grade: 213.3Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- BKRRF
Resource Data
- Category
- indicated
- Tonnes
- 1281000
- Grade
- 213.3
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The indicated gold resource shows a good grade and significant contained metal, contributing to the overall 90% increase in indicated AgEq ounces, which is a strong de-risking signal for the project. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- category_upgrade
- contained_metal_growth
- grade_improvement
- qp_signed
- ni_43_101_compliant
Evidence · table
“213.3”
Context: 1,281,000
indicatedgoldTonnes: 1281000Grade: 2.12Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- BKRRF
Resource Data
- Category
- indicated
- Tonnes
- 1281000
- Grade
- 2.12
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The indicated gold resource shows a good grade and significant contained metal, contributing to the overall 90% increase in indicated AgEq ounces, which is a strong de-risking signal for the project. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- category_upgrade
- contained_metal_growth
- grade_improvement
- qp_signed
- ni_43_101_compliant
Evidence · table
“2.12”
Context: 1,281,000
inferredsilverTonnes: 485000Grade: 87.5Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- BKRRF
Resource Data
- Category
- inferred
- Tonnes
- 485000
- Grade
- 87.5
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The inferred gold resource shows a good grade and substantial contained metal, indicating significant exploration upside potential for the project. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- contained_metal_growth
- qp_signed
- ni_43_101_compliant
Evidence · table
“87.5”
Context: 485,000
inferredgoldTonnes: 485000Grade: 2.02Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- BKRRF
Resource Data
- Category
- inferred
- Tonnes
- 485000
- Grade
- 2.02
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The inferred gold resource shows a good grade and substantial contained metal, indicating significant exploration upside potential for the project. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- contained_metal_growth
- qp_signed
- ni_43_101_compliant
Evidence · table
“2.02”
Context: 485,000
indicatedsilverTonnes: 323000Grade: 183.4Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- BKRRF
Resource Data
- Category
- indicated
- Tonnes
- 323000
- Grade
- 183.4
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The indicated gold resource shows a good grade and significant contained metal, contributing to the overall 90% increase in indicated AgEq ounces, which is a strong de-risking signal for the project. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- category_upgrade
- contained_metal_growth
- grade_improvement
- qp_signed
- ni_43_101_compliant
Evidence · table
“183.4”
Context: 323,000
indicatedgoldTonnes: 323000Grade: 2.03Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- BKRRF
Resource Data
- Category
- indicated
- Tonnes
- 323000
- Grade
- 2.03
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The indicated gold resource shows a good grade and significant contained metal, contributing to the overall 90% increase in indicated AgEq ounces, which is a strong de-risking signal for the project. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- category_upgrade
- contained_metal_growth
- grade_improvement
- qp_signed
- ni_43_101_compliant
Evidence · table
“2.03”
Context: 323,000
inferredsilverTonnes: 622000Grade: 146.7Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- BKRRF
Resource Data
- Category
- inferred
- Tonnes
- 622000
- Grade
- 146.7
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The inferred gold resource shows a good grade and substantial contained metal, indicating significant exploration upside potential for the project. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- contained_metal_growth
- qp_signed
- ni_43_101_compliant
Evidence · table
“146.7”
Context: 622,000
inferredgoldTonnes: 622000Grade: 1.67Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- BKRRF
Resource Data
- Category
- inferred
- Tonnes
- 622000
- Grade
- 1.67
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The inferred gold resource shows a good grade and substantial contained metal, indicating significant exploration upside potential for the project. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- contained_metal_growth
- qp_signed
- ni_43_101_compliant
Evidence · table
“1.67”
Context: 622,000
inferredsilverTonnes: 891000Grade: 193Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- BKRRF
Resource Data
- Category
- inferred
- Tonnes
- 891000
- Grade
- 193
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The inferred gold resource shows a good grade and substantial contained metal, indicating significant exploration upside potential for the project. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- contained_metal_growth
- qp_signed
- ni_43_101_compliant
Evidence · table
“193.0”
Context: 891,000
inferredgoldTonnes: 891000Grade: 3.1Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- BKRRF
Resource Data
- Category
- inferred
- Tonnes
- 891000
- Grade
- 3.1
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The inferred gold resource shows a good grade and substantial contained metal, indicating significant exploration upside potential for the project. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- contained_metal_growth
- qp_signed
- ni_43_101_compliant
Evidence · table
“3.10”
Context: 891,000
indicatedsilverTonnes: 2750000Grade: 216.8Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- BKRRF
Resource Data
- Category
- indicated
- Tonnes
- 2750000
- Grade
- 216.8
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The indicated gold resource shows a good grade and significant contained metal, contributing to the overall 90% increase in indicated AgEq ounces, which is a strong de-risking signal for the project. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- category_upgrade
- contained_metal_growth
- grade_improvement
- qp_signed
- ni_43_101_compliant
Evidence · table
“216.8”
Context: 2,750,000
indicatedgoldTonnes: 2750000Grade: 2.25Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- BKRRF
Resource Data
- Category
- indicated
- Tonnes
- 2750000
- Grade
- 2.25
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The indicated gold resource shows a good grade and significant contained metal, contributing to the overall 90% increase in indicated AgEq ounces, which is a strong de-risking signal for the project. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- category_upgrade
- contained_metal_growth
- grade_improvement
- qp_signed
- ni_43_101_compliant
Evidence · table
“2.25”
Context: 2,750,000
inferredsilverTonnes: 5538000Grade: 188.5Grade Unit: g/tHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- BKRRF
Resource Data
- Category
- inferred
- Tonnes
- 5538000
- Grade
- 188.5
- Grade Unit
- g/t
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The inferred gold resource shows a good grade and substantial contained metal, indicating significant exploration upside potential for the project. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- contained_metal_growth
- qp_signed
- ni_43_101_compliant
Evidence · table
“188.5”
Context: 5,538,000
inferredgoldTonnes: 5538000Grade: 2.62Grade Unit: g/tHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- BKRRF
Resource Data
- Category
- inferred
- Tonnes
- 5538000
- Grade
- 2.62
- Grade Unit
- g/t
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
Dates
- Event date
- 2026-03-31T00:00:00.000Z
Reasoning: The inferred gold resource shows a good grade and substantial contained metal, indicating significant exploration upside potential for the project. (Expanded from multi-commodity resource table for completeness.)
Positive factors
- contained_metal_growth
- qp_signed
- ni_43_101_compliant
Evidence · table
“2.62”
Context: 5,538,000
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.