SSR Mining Announces 20-Year Life of Mine Plan for Marigold Based on Expanded 4.6 Million Ounce Mineral Reserve
Original announcement by jmn on
- Company
- SSR Mining Inc.
- Ticker
- SSRM
- Exchange
- TSX
- Region
- Unavailable
- Primary commodity
- Gold
- Secondary commodities
- None reported
- Document categories
- Resource update, Other
- Extracted
- 2026-10-13 10:28:59 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
SSR Mining announced an updated Technical Report Summary for its Marigold Gold Complex in Nevada, outlining a 20-year life of mine plan based on expanded gold mineral reserves. The new plan increases gold reserves by 43% to 4.6 million ounces and includes a maiden life of mine plan for the Buffalo Valley project. The study projects an after-tax NPV5% of $3.3 billion and average annual gold production of 231,000 ounces from 2027 to 2031, with an All-In Sustaining Cost of $2,005 per ounce sold over the life of mine.
Reasoning: The updated Marigold Technical Report Summary significantly expands gold mineral reserves by 43% to 4.6 million ounces, establishing a 20-year mine life with a robust after-tax NPV5% of $3.3 billion, supported by S-K 1300 and NI 43-101 compliant reporting, despite a decrease in M&I and Inferred resources.
Positive factors
- Significant increase in gold reserves (43%)
- Long mine life (20 years total production)
- Strong after-tax NPV5% of $3.3 billion
- Maiden life of mine plan for Buffalo Valley included
- High average annual gold production (231 koz over 5 years)
- S-K 1300 and NI 43-101 compliant reporting
- QP/CP signed off on the estimates
Negative factors
- Measured & Indicated Mineral Resources decreased by 7.78%
- Inferred Mineral Resources decreased by 42%
- AISC of $2,005/oz is relatively high, though acceptable at current gold prices
Low confidence — this extraction should be reviewed alongside the original source.
Facts used in scoring: 19
Classification and evidence
Contained Metal Growthpositive
True scale improvement — contained metal ounces/tonnes increased vs prior, accounting for both tonnage and grade changes.
Why it applies: Total Proven + Probable Reserves for the Marigold Complex increased by 44.68% from 3.2 Moz to 4.63 Moz.
Evidence · text
“Gold Mineral Reserves at Marigold total 4.6 million ounces, an increase of 43% from the 3.2 million ounces at year-end 2025”
Tonnage Growthpositive
Significant tonnage increase (≥15%) vs prior estimate with grade maintained or improved.
Why it applies: Total Proven + Probable Reserves for the Marigold Complex increased from an unspecified prior tonnage to 359 Mt, accompanying a 43% increase in contained gold.
Evidence · text
“Gold Mineral Reserves at Marigold total 4.6 million ounces, an increase of 43% from the 3.2 million ounces at year-end 2025”
Probable Reservepositive
Indicated Resource with demonstrated economic viability after applying modifying factors.
Why it applies: The Marigold Complex reports 4.63 Moz of Total P+P Reserves, which includes Probable Reserves.
Evidence · table
“4.63”
Context: 359
SEC S-K 1300 Compliantpositive · Story-specific tag
No canonical definition is currently available.
Why it applies: The TRS has been prepared in accordance with S-K 1300.
Evidence · text
“The TRS, with an effective date of May 1, 2026, has been prepared in accordance with S-K 1300”
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: The scientific and technical information has been reviewed and verified by a 'qualified person' under NI 43-101.
Evidence · text
“SLR International Corporation, a “qualified person” under subpart 1 of Regulation S-K 1300 (“S-K 1300”) and National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”).”
QP/CP Signedpositive
Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.
Why it applies: SLR International Corporation is named as a 'qualified person' under S-K 1300 and NI 43-101.
Evidence · text
“SLR International Corporation, a “qualified person” under subpart 1 of Regulation S-K 1300 (“S-K 1300”) and National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”).”
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: The Mineral Reserve estimate is reported at a cut-off grade of 0.069 g/t payable Au.
Evidence · text
“The Marigold Mine Mineral Reserve estimate is based on a metal price assumption of $2,200/oz gold and is reported at a cut-off grade of 0.069 g/t payable Au”
Indicated Resourcepositive
Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.
Why it applies: The Marigold Complex reports 1.66 Moz of M&I Mineral Resources, which includes Indicated Resources.
Evidence · table
“1.66”
Context: 131
Contained Metal Declinenegative
Contained metal decreased vs prior despite tonnage growth — grade dilution exceeds volume gain.
Why it applies: Measured & Indicated Mineral Resources decreased by 7.78% from 1.8 Moz to 1.66 Moz.
Evidence · text
“Measured & Indicated Mineral Resources, exclusive of Mineral Reserves, total 1.7 million ounces of gold as compared to the 1.8 million ounces of M&I Resources as of year-end 2025”
Tonnage Declinenegative
Resource tonnage decreased vs prior estimate — pit optimization removed marginal material or geological model revised down.
Why it applies: Measured & Indicated Mineral Resources decreased from an unspecified prior tonnage to 131 Mt, accompanying a 7.78% decrease in contained gold.
Evidence · text
“Measured & Indicated Mineral Resources, exclusive of Mineral Reserves, total 1.7 million ounces of gold as compared to the 1.8 million ounces of M&I Resources as of year-end 2025”
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: The Marigold Complex reports 0.29 Moz of Inferred Mineral Resources.
Evidence · table
“0.29”
Context: 29
Historical Estimate Onlynegative
Estimate pre-dates or does not comply with current JORC/NI 43-101 standards — requires verification drilling.
Why it applies: The CC&V Mineral Reserves and Resources are from the Annual Report on Form 10-K for the year ended December 31, 2025.
Evidence · text
“The following tables provide a summary of Mineral Reserves and Mineral Resources for CC&V for the year ended December 31, 2025 as included within the Company’s Annual Report”
Long Mine Lifepositive · Story-specific tag
No canonical definition is currently available.
Why it applies: The Marigold TRS outlines a 20-year life of mine plan.
Evidence · text
“SSR Mining Announces 20-Year Life of Mine Plan for Marigold”
Positive NPVpositive · Story-specific tag
No canonical definition is currently available.
Why it applies: The 2026 Marigold TRS reports an after-tax NPV5% of $3.3 billion.
Evidence · text
“After-tax NPV 5% of $3.3 billion at consensus gold prices”
Heap Leach Routeneutral · Story-specific tag
Processing via heap leach — lower CAPEX and OPEX, lower recovery expected.
Why it applies: The mine plan includes a stand-alone heap leach facility for Buffalo Valley and overall gold recovery is based on heap leaching.
Evidence · text
“Buffalo Valley and its stand-alone heap leach facility”
Extracted facts
Stored fact records: 19. Some facts used in scoring do not have a stored record.
Resource Estimates (19)
probableMarigold · goldTonnes: 359000000Grade: 0.4Grade Unit: g/tContained Metal: 4630000Contained Unit: ozView all detailsHide details
Identity
- Project
- Marigold
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada, USA
- Ticker
- SSRM
Resource scope
- Estimate type
- reserve
- Reporting standards
- sec_sk1300, ni_43_101
- QP Signed
- Yes
- Qualified person names
- SLR International Corporation
- Resource group id
- resource:fd2cb644025f4e7e6bfa
- Ownership percent
- 100 %
- Resource basis
- gross
Resource Data
- Category
- probable
- Tonnes
- 359000000
- Grade
- 0.4
- Grade Unit
- g/t
- Contained Metal
- 4630000
- Contained Unit
- oz
- Cutoff Grade
- 0.069
- Cutoff Unit
- g/t
Prior Estimate
- Resource Date
- 2026-05-01
- Prior Contained Metal
- 3200000
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-10-13T00:00:00.000Z
Reasoning: Total Proven + Probable Reserves for the Marigold Complex increased by 43% to 4.63 million ounces, representing significant growth and a high-confidence estimate.
Positive factors
- Exceptional contained metal growth (44.68% increase)
- Exceptional tonnage growth
- High confidence category (Probable Reserve)
- S-K 1300 and NI 43-101 compliant
- QP/CP signed
Evidence · table
“4.63”
Context: 359
Tags used in scoring
Probable Reservepositive
Indicated Resource with demonstrated economic viability after applying modifying factors.
Why it applies: category is "probable"
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
Contained Metal Growthpositive
True scale improvement — contained metal ounces/tonnes increased vs prior, accounting for both tonnage and grade changes.
Why it applies: 4630000 against 3200000 previously
indicatedMarigold · goldTonnes: 131000000Grade: 0.4Grade Unit: g/tContained Metal: 1660000Contained Unit: ozView all detailsHide details
Identity
- Project
- Marigold
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada, USA
- Ticker
- SSRM
Resource scope
- Estimate type
- resource
- Reporting standards
- sec_sk1300, ni_43_101
- QP Signed
- Yes
- Qualified person names
- SLR International Corporation
- Resource group id
- resource:feea0284775ccc8df6c6
- Ownership percent
- 100 %
- Resource basis
- gross
Resource Data
- Category
- indicated
- Tonnes
- 131000000
- Grade
- 0.4
- Grade Unit
- g/t
- Contained Metal
- 1660000
- Contained Unit
- oz
- Cutoff Grade
- 0.069
- Cutoff Unit
- g/t
Prior Estimate
- Resource Date
- 2026-05-01
- Prior Contained Metal
- 1800000
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-10-13T00:00:00.000Z
Reasoning: Measured & Indicated Mineral Resources for the Marigold Complex decreased by 7.78% to 1.66 million ounces, indicating a slight reduction in higher-confidence resources.
Positive factors
- High confidence category (Indicated Resource)
- S-K 1300 and NI 43-101 compliant
- QP/CP signed
Negative factors
- Contained metal decline (7.78% decrease)
- Tonnage decline
Evidence · table
“1.66”
Context: 131
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
Contained Metal Declinenegative
Contained metal decreased vs prior despite tonnage growth — grade dilution exceeds volume gain.
Why it applies: 1660000 against 1800000 previously
inferredMarigold · goldTonnes: 29000000Grade: 0.31Grade Unit: g/tContained Metal: 290000Contained Unit: ozView all detailsHide details
Identity
- Project
- Marigold
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada, USA
- Ticker
- SSRM
Resource scope
- Estimate type
- resource
- Reporting standards
- sec_sk1300, ni_43_101
- QP Signed
- Yes
- Qualified person names
- SLR International Corporation
- Resource group id
- resource:6960aa79fc78af0700ec
- Ownership percent
- 100 %
- Resource basis
- gross
Resource Data
- Category
- inferred
- Tonnes
- 29000000
- Grade
- 0.31
- Grade Unit
- g/t
- Contained Metal
- 290000
- Contained Unit
- oz
- Cutoff Grade
- 0.1
- Cutoff Unit
- g/t
Prior Estimate
- Resource Date
- 2026-05-01
- Prior Contained Metal
- 500000
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-10-13T00:00:00.000Z
Reasoning: Inferred Mineral Resources for the Marigold Complex decreased by 42% to 0.29 million ounces, representing a significant reduction in lower-confidence resources.
Positive factors
- S-K 1300 and NI 43-101 compliant
- QP/CP signed
Negative factors
- Contained metal decline (42% decrease)
- Tonnage decline
- Lower confidence category (Inferred Resource)
Evidence · table
“0.29”
Context: 29
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
Contained Metal Declinenegative
Contained metal decreased vs prior despite tonnage growth — grade dilution exceeds volume gain.
Why it applies: 290000 against 500000 previously
probableMarigold · goldTonnes: 240400000Grade: 0.46Grade Unit: g/tContained Metal: 3520000Contained Unit: ozView all detailsHide details
Identity
- Project
- Marigold
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada, USA
- Ticker
- SSRM
Resource scope
- Estimate type
- reserve
- Reporting standards
- sec_sk1300, ni_43_101
- QP Signed
- Yes
- Qualified person names
- SLR International Corporation
- Resource group id
- resource:59ae3e10d8706b76a1dd
- Deposit or zone
- Marigold
- Ownership percent
- 100 %
- Resource basis
- gross
Resource Data
- Category
- probable
- Tonnes
- 240400000
- Grade
- 0.46
- Grade Unit
- g/t
- Contained Metal
- 3520000
- Contained Unit
- oz
- Cutoff Grade
- 0.069
- Cutoff Unit
- g/t
Prior Estimate
- Resource Date
- 2026-05-01
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-10-13T00:00:00.000Z
Reasoning: Marigold's Probable Reserves contribute significantly to the overall reserve base with 3.52 million ounces of gold.
Positive factors
- High confidence category (Probable Reserve)
- S-K 1300 and NI 43-101 compliant
- QP/CP signed
Evidence · table
“3.52”
Context: 240.4
Tags used in scoring
Probable Reservepositive
Indicated Resource with demonstrated economic viability after applying modifying factors.
Why it applies: category is "probable"
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
probableBuffalo Valley · goldTonnes: 45300000Grade: 0.46Grade Unit: g/tContained Metal: 670000Contained Unit: ozView all detailsHide details
Identity
- Project
- Buffalo Valley
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada, USA
- Ticker
- SSRM
Resource scope
- Estimate type
- reserve
- Reporting standards
- sec_sk1300, ni_43_101
- QP Signed
- Yes
- Qualified person names
- SLR International Corporation
- Resource group id
- resource:3594cf5aa19722029b3b
- Deposit or zone
- Buffalo Valley
- Ownership percent
- 100 %
- Resource basis
- gross
Resource Data
- Category
- probable
- Tonnes
- 45300000
- Grade
- 0.46
- Grade Unit
- g/t
- Contained Metal
- 670000
- Contained Unit
- oz
- Cutoff Grade
- 0.069
- Cutoff Unit
- g/t
Prior Estimate
- Resource Date
- 2026-05-01
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-10-13T00:00:00.000Z
Reasoning: Buffalo Valley's maiden Probable Reserve of 0.67 million ounces of gold adds new significant ounces to the Marigold Complex.
Positive factors
- Maiden reserve estimate for Buffalo Valley
- High confidence category (Probable Reserve)
- S-K 1300 and NI 43-101 compliant
- QP/CP signed
Evidence · table
“0.67”
Context: 45.3
Tags used in scoring
Probable Reservepositive
Indicated Resource with demonstrated economic viability after applying modifying factors.
Why it applies: category is "probable"
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
probableMarigold · goldTonnes: 12000000Grade: 0.17Grade Unit: g/tContained Metal: 60000Contained Unit: ozView all detailsHide details
Identity
- Project
- Marigold
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada, USA
- Ticker
- SSRM
Resource scope
- Estimate type
- reserve
- Reporting standards
- sec_sk1300, ni_43_101
- QP Signed
- Yes
- Qualified person names
- SLR International Corporation
- Resource group id
- resource:fd180ad8550e0a97fbaf
- Deposit or zone
- Stockpile
- Ownership percent
- 100 %
- Resource basis
- gross
Resource Data
- Category
- probable
- Tonnes
- 12000000
- Grade
- 0.17
- Grade Unit
- g/t
- Contained Metal
- 60000
- Contained Unit
- oz
- Cutoff Grade
- 0.069
- Cutoff Unit
- g/t
Prior Estimate
- Resource Date
- 2026-05-01
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-10-13T00:00:00.000Z
Reasoning: Stockpile Probable Reserves add 0.06 million ounces of gold to the overall Marigold Complex reserves.
Positive factors
- High confidence category (Probable Reserve)
- S-K 1300 and NI 43-101 compliant
- QP/CP signed
Evidence · table
“0.06”
Context: 12.0
Tags used in scoring
Probable Reservepositive
Indicated Resource with demonstrated economic viability after applying modifying factors.
Why it applies: category is "probable"
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
probableMarigold · goldTonnes: 61000000Grade: 0.19Grade Unit: g/tContained Metal: 370000Contained Unit: ozView all detailsHide details
Identity
- Project
- Marigold
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada, USA
- Ticker
- SSRM
Resource scope
- Estimate type
- reserve
- Reporting standards
- sec_sk1300, ni_43_101
- QP Signed
- Yes
- Qualified person names
- SLR International Corporation
- Resource group id
- resource:28e383b875ae14a9307b
- Deposit or zone
- Leach Pad Inventory
- Ownership percent
- 100 %
- Resource basis
- gross
Resource Data
- Category
- probable
- Tonnes
- 61000000
- Grade
- 0.19
- Grade Unit
- g/t
- Contained Metal
- 370000
- Contained Unit
- oz
- Cutoff Grade
- 0.069
- Cutoff Unit
- g/t
Prior Estimate
- Resource Date
- 2026-05-01
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-10-13T00:00:00.000Z
Reasoning: Leach Pad Inventory Probable Reserves contribute 0.37 million ounces of gold to the Marigold Complex reserves.
Positive factors
- High confidence category (Probable Reserve)
- S-K 1300 and NI 43-101 compliant
- QP/CP signed
Evidence · table
“0.37”
Context: 61.0
Tags used in scoring
Probable Reservepositive
Indicated Resource with demonstrated economic viability after applying modifying factors.
Why it applies: category is "probable"
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
indicatedMarigold · goldTonnes: 125000000Grade: 0.39Grade Unit: g/tContained Metal: 1570000Contained Unit: ozView all detailsHide details
Identity
- Project
- Marigold
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada, USA
- Ticker
- SSRM
Resource scope
- Estimate type
- resource
- Reporting standards
- sec_sk1300, ni_43_101
- QP Signed
- Yes
- Qualified person names
- SLR International Corporation
- Resource group id
- resource:c7d18d987b2dc997f5c6
- Deposit or zone
- Marigold
- Ownership percent
- 100 %
- Resource basis
- gross
Resource Data
- Category
- indicated
- Tonnes
- 125000000
- Grade
- 0.39
- Grade Unit
- g/t
- Contained Metal
- 1570000
- Contained Unit
- oz
- Cutoff Grade
- 0.069
- Cutoff Unit
- g/t
Prior Estimate
- Resource Date
- 2026-05-01
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-10-13T00:00:00.000Z
Reasoning: Marigold's Indicated Resources of 1.57 million ounces provide a solid base for future reserve conversion.
Positive factors
- High confidence category (Indicated Resource)
- S-K 1300 and NI 43-101 compliant
- QP/CP signed
Evidence · table
“1.57”
Context: 125.0
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
indicatedBuffalo Valley · goldTonnes: 5600000Grade: 0.53Grade Unit: g/tContained Metal: 90000Contained Unit: ozView all detailsHide details
Identity
- Project
- Buffalo Valley
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada, USA
- Ticker
- SSRM
Resource scope
- Estimate type
- resource
- Reporting standards
- sec_sk1300, ni_43_101
- QP Signed
- Yes
- Qualified person names
- SLR International Corporation
- Resource group id
- resource:b8a0197cc1d04720f63d
- Deposit or zone
- Buffalo Valley
- Ownership percent
- 100 %
- Resource basis
- gross
Resource Data
- Category
- indicated
- Tonnes
- 5600000
- Grade
- 0.53
- Grade Unit
- g/t
- Contained Metal
- 90000
- Contained Unit
- oz
- Cutoff Grade
- 0.1
- Cutoff Unit
- g/t
Prior Estimate
- Resource Date
- 2026-05-01
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-10-13T00:00:00.000Z
Reasoning: Buffalo Valley's Indicated Resources of 0.09 million ounces provide additional potential for future reserve conversion.
Positive factors
- High confidence category (Indicated Resource)
- S-K 1300 and NI 43-101 compliant
- QP/CP signed
Evidence · table
“0.09”
Context: 5.6
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
inferredMarigold · goldTonnes: 18100000Grade: 0.3Grade Unit: g/tContained Metal: 180000Contained Unit: ozView all detailsHide details
Identity
- Project
- Marigold
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada, USA
- Ticker
- SSRM
Resource scope
- Estimate type
- resource
- Reporting standards
- sec_sk1300, ni_43_101
- QP Signed
- Yes
- Qualified person names
- SLR International Corporation
- Resource group id
- resource:02fcb8d38a2cd769c6fe
- Deposit or zone
- Marigold
- Ownership percent
- 100 %
- Resource basis
- gross
Resource Data
- Category
- inferred
- Tonnes
- 18100000
- Grade
- 0.3
- Grade Unit
- g/t
- Contained Metal
- 180000
- Contained Unit
- oz
- Cutoff Grade
- 0.069
- Cutoff Unit
- g/t
Prior Estimate
- Resource Date
- 2026-05-01
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-10-13T00:00:00.000Z
Reasoning: Marigold's Inferred Resources of 0.18 million ounces represent additional exploration potential.
Positive factors
- S-K 1300 and NI 43-101 compliant
- QP/CP signed
Negative factors
- Lower confidence category (Inferred Resource)
Evidence · table
“0.18”
Context: 18.1
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
inferredBuffalo Valley · goldTonnes: 11200000Grade: 0.31Grade Unit: g/tContained Metal: 110000Contained Unit: ozView all detailsHide details
Identity
- Project
- Buffalo Valley
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada, USA
- Ticker
- SSRM
Resource scope
- Estimate type
- resource
- Reporting standards
- sec_sk1300, ni_43_101
- QP Signed
- Yes
- Qualified person names
- SLR International Corporation
- Resource group id
- resource:38d238545488ae018ebf
- Deposit or zone
- Buffalo Valley
- Ownership percent
- 100 %
- Resource basis
- gross
Resource Data
- Category
- inferred
- Tonnes
- 11200000
- Grade
- 0.31
- Grade Unit
- g/t
- Contained Metal
- 110000
- Contained Unit
- oz
- Cutoff Grade
- 0.1
- Cutoff Unit
- g/t
Prior Estimate
- Resource Date
- 2026-05-01
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-10-13T00:00:00.000Z
Reasoning: Buffalo Valley's Inferred Resources of 0.11 million ounces represent additional exploration potential.
Positive factors
- S-K 1300 and NI 43-101 compliant
- QP/CP signed
Negative factors
- Lower confidence category (Inferred Resource)
Evidence · table
“0.11”
Context: 11.2
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
probableCC&V · goldTonnes: 220211000Grade: 0.37Grade Unit: g/tContained Metal: 2651000Contained Unit: ozHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- CC&V
- Commodity
- gold
- Region
- usa_co
- Reported Region
- Colorado
- Ticker
- SSRM
Resource scope
- Estimate type
- reserve
- Reporting standards
- sec_sk1300
- QP Signed
- Yes
- Resource group id
- resource:30ce19fbcb74de634cd7
- Ownership percent
- 100 %
- Resource basis
- gross
Resource Data
- Category
- probable
- Tonnes
- 220211000
- Grade
- 0.37
- Grade Unit
- g/t
- Contained Metal
- 2651000
- Contained Unit
- oz
- Cutoff Grade
- 0.069
- Cutoff Unit
- g/t
Prior Estimate
- Resource Date
- 2025-12-31
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2025-12-31T00:00:00.000Z
Dates
- Event date
- 2026-10-13T00:00:00.000Z
Reasoning: The CC&V Probable Reserves of 2.651 million ounces of gold are a significant historical estimate, providing context for the company's overall portfolio.
Positive factors
- High confidence category (Probable Reserve)
- S-K 1300 compliant
Negative factors
- Historical estimate, not new information
Evidence · table
“2,651”
Context: 220,211
Tags used in scoring
Probable Reservepositive
Indicated Resource with demonstrated economic viability after applying modifying factors.
Why it applies: category is "probable"
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
indicatedCC&V · goldTonnes: 338082000Grade: 0.44Grade Unit: g/tContained Metal: 4805000Contained Unit: ozHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- CC&V
- Commodity
- gold
- Region
- usa_co
- Reported Region
- Colorado
- Ticker
- SSRM
Resource scope
- Estimate type
- resource
- Reporting standards
- sec_sk1300
- QP Signed
- Yes
- Resource group id
- resource:42b163827aaf809ac8fd
- Ownership percent
- 100 %
- Resource basis
- gross
Resource Data
- Category
- indicated
- Tonnes
- 338082000
- Grade
- 0.44
- Grade Unit
- g/t
- Contained Metal
- 4805000
- Contained Unit
- oz
- Cutoff Grade
- 0.069
- Cutoff Unit
- g/t
Prior Estimate
- Resource Date
- 2025-12-31
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2025-12-31T00:00:00.000Z
Dates
- Event date
- 2026-10-13T00:00:00.000Z
Reasoning: The CC&V Measured + Indicated Resources of 4.805 million ounces of gold are a significant historical estimate, providing context for the company's overall portfolio.
Positive factors
- High confidence category (Indicated Resource)
- S-K 1300 compliant
Negative factors
- Historical estimate, not new information
Evidence · table
“4,805”
Context: 338,082
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
inferredCC&V · goldTonnes: 149352000Grade: 0.41Grade Unit: g/tContained Metal: 1963000Contained Unit: ozHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- CC&V
- Commodity
- gold
- Region
- usa_co
- Reported Region
- Colorado
- Ticker
- SSRM
Resource scope
- Estimate type
- resource
- Reporting standards
- sec_sk1300
- QP Signed
- Yes
- Resource group id
- resource:c0dc539e073029a8d3d5
- Ownership percent
- 100 %
- Resource basis
- gross
Resource Data
- Category
- inferred
- Tonnes
- 149352000
- Grade
- 0.41
- Grade Unit
- g/t
- Contained Metal
- 1963000
- Contained Unit
- oz
- Cutoff Grade
- 0.069
- Cutoff Unit
- g/t
Prior Estimate
- Resource Date
- 2025-12-31
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2025-12-31T00:00:00.000Z
Dates
- Event date
- 2026-10-13T00:00:00.000Z
Reasoning: The CC&V Inferred Resources of 1.963 million ounces of gold are a significant historical estimate, providing context for the company's overall portfolio.
Positive factors
- S-K 1300 compliant
Negative factors
- Historical estimate, not new information
- Lower confidence category (Inferred Resource)
Evidence · table
“1,963”
Context: 149,352
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
Fact 15Marigold · goldView all detailsHide details
Identity
- Project
- Marigold
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada, USA
- Ticker
- SSRM
Resource scope
- Reporting standards
- sec_sk1300, ni_43_101
- QP Signed
- Yes
- Qualified person names
- SLR International Corporation
- Resource group id
- resource:733babc3edde068d8051
Prior Estimate
- Resource Date
- 2026-05-01
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-10-13T00:00:00.000Z
Reasoning: The Marigold TRS outlines a robust 24-year mine life with strong economics, including a $3.3 billion NPV5% and 3.208 million ounces of gold production at a competitive AISC.
Positive factors
- Long mine life (24 years)
- Strong after-tax NPV5% of $3.3 billion
- Significant total gold production (3.208 Moz)
- Reasonable AISC for current gold prices
- S-K 1300 and NI 43-101 compliant
Evidence · text
“SSR Mining Announces 20-Year Life of Mine Plan for Marigold Based on Expanded 4.6 Million Ounce Mineral Reserve”
Tags used in scoring
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
QP/CP Signedpositive
Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.
Why it applies: qp_signed is true
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: reporting_standards includes ni_43_101
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Fact 16Marigold · goldView all detailsHide details
Identity
- Project
- Marigold
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada, USA
- Ticker
- SSRM
Resource scope
- Reporting standards
- sec_sk1300, ni_43_101
- QP Signed
- Yes
- Qualified person names
- SLR International Corporation
- Resource group id
- resource:733babc3edde068d8051
Prior Estimate
- Resource Date
- 2026-05-01
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-10-13T00:00:00.000Z
Reasoning: The active mining period from 2027 to 2040 demonstrates strong production and cash flow metrics, underpinning the project's economic viability.
Positive factors
- Significant gold production over active mining period (2.816 Moz)
- Strong average annual gold production (201 koz)
- S-K 1300 and NI 43-101 compliant
Evidence · table
“2,816”
Context: 201
Tags used in scoring
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
QP/CP Signedpositive
Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.
Why it applies: qp_signed is true
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: reporting_standards includes ni_43_101
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Fact 17Marigold · goldView all detailsHide details
Identity
- Project
- Marigold
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada, USA
- Ticker
- SSRM
Resource scope
- Reporting standards
- sec_sk1300, ni_43_101
- QP Signed
- Yes
- Qualified person names
- SLR International Corporation
- Resource group id
- resource:733babc3edde068d8051
Prior Estimate
- Resource Date
- 2026-05-01
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-10-13T00:00:00.000Z
Reasoning: The five-year profile from 2027 to 2031 highlights strong initial production and cash flow, aligning with prior expectations.
Positive factors
- High average annual gold production (231 koz)
- Strong free cash flow generation
- S-K 1300 and NI 43-101 compliant
Evidence · table
“231”
Context: 1,153
Tags used in scoring
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
QP/CP Signedpositive
Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.
Why it applies: qp_signed is true
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: reporting_standards includes ni_43_101
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Fact 18Marigold · goldView all detailsHide details
Identity
- Project
- Marigold
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada, USA
- Ticker
- SSRM
Resource scope
- Reporting standards
- sec_sk1300, ni_43_101
- QP Signed
- Yes
- Qualified person names
- SLR International Corporation
- Resource group id
- resource:733babc3edde068d8051
Prior Estimate
- Resource Date
- 2026-05-01
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-10-13T00:00:00.000Z
Reasoning: Growth capital investment of $542 million is planned to expand heap leach facilities, acquire mining equipment, and develop Buffalo Valley, supporting the extended mine life.
Positive factors
- Investment in growth capital to support mine life extension and increased mining rates
- S-K 1300 and NI 43-101 compliant
Evidence · table
“$542”
Context: Growth Capital Costs as of May 1, 2026
Tags used in scoring
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
QP/CP Signedpositive
Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.
Why it applies: qp_signed is true
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: reporting_standards includes ni_43_101
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Fact 19Marigold · goldView all detailsHide details
Identity
- Project
- Marigold
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada, USA
- Ticker
- SSRM
Resource scope
- Reporting standards
- sec_sk1300, ni_43_101
- QP Signed
- Yes
- Qualified person names
- SLR International Corporation
- Resource group id
- resource:733babc3edde068d8051
Prior Estimate
- Resource Date
- 2026-05-01
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-10-13T00:00:00.000Z
Reasoning: Sustaining capital of $669 million is allocated for maintaining current production and infrastructure over the life of mine.
Positive factors
- Sustaining capital allocated for equipment replacement and site infrastructure
- S-K 1300 and NI 43-101 compliant
Evidence · table
“$669”
Context: Sustaining Capital
Tags used in scoring
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
QP/CP Signedpositive
Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.
Why it applies: qp_signed is true
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: reporting_standards includes ni_43_101
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
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.