# IAMGOLD Announces Consolidated Mineral Resource Estimate for C&\#xF4;t&\#xE9; Gold Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/iamgold-announces-consolidated-mineral-resource-estimate-for-c-xf4-t-xe9-gold--4df94d09-bbba-4c28-b8a0-160fa1b1830d Original source: https://money.tmx.com/en/quote/IMG/news/7994903023586412/iamgold-announces-consolidated-mineral-resource-estimate-for-c-xf4-t-xe9-gold Publisher: tmx Original announcement: 2026-06-01T11:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: IAMGOLD Corporation - Ticker: IMG - Exchange: TSX - Region: Ontario, Canada - Primary commodity: Gold - Secondary commodities: None reported - Document categories: Resource update - Extracted: 2026-09-12 06:44:54 UTC Narrative sentiment: 0.60 · Bullish ## Minestarters Atlas summary IAMGOLD announced an updated Mineral Resource estimate for its Côté Gold Mine in Ontario, Canada, effective March 31, 2026. The consolidated estimate for Côté and Gosselin zones shows a 12% increase in Measured and Indicated gold ounces to 20.3 Moz and a 61% increase in Inferred gold ounces to 3.5 Moz. This growth is attributed to the integration of the two zones and the saddle area, though it was supported by a lower cut-off grade and a higher gold price assumption, resulting in a decrease in average grades. Reasoning: The updated resource estimate shows significant growth in both M&I and Inferred gold ounces, driven by the consolidation of the Côté and Gosselin zones and the inclusion of the saddle area. While the growth is substantial, it is partially influenced by a lower cut-off grade and a higher gold price assumption, leading to a decrease in overall average grades. The integration into a single model is a positive technical step for future mine planning. - Positive factor: Significant increase in total Measured and Indicated \(M&I\) gold ounces by 12% \(2.2 Moz\) on a consolidated basis, indicating substantial resource growth and improved confidence. - Positive factor: Consolidated block model integrates Côté and Gosselin zones, including the saddle area, providing a more robust geological framework for future mine planning. - Positive factor: Addition of new Indicated and Inferred resources in the saddle area demonstrates successful exploration and delineation between the two main zones. - Positive factor: Overall Inferred Mineral Resources increased by 61% \(1.3 Moz\), indicating significant growth in potential future resources. - Positive factor: The updated estimate forms the technical foundation for an upcoming expansion study and updated mine plan, suggesting future development potential. - Negative factor: The increase in resources is partly driven by a lower cut-off grade \(0.30 g/t Au to 0.25 g/t Au\) and a higher gold price assumption \($2,100/oz to $2,500/oz for Côté\), which can inflate tonnage and contained metal. - Negative factor: Average grades for Measured, Indicated, and Inferred categories have decreased across the consolidated estimate, suggesting grade dilution. - Negative factor: Gosselin Inferred Mineral Resources decreased by 7% \(0.1 Moz\), indicating some resource loss in that specific category. Facts used in scoring: 10 ## Classification and evidence **Tonnage Growth** Polarity: positive Definition: Tonnage increase reaching the strong tier vs prior estimate, with grade maintained or improved. Why it applies: Consolidated Measured and Indicated \(M&I\) Mineral Resources increased by 23% in tonnes \(from 689.5 Mt to 838.0 Mt\) and Inferred Mineral Resources increased by 76% in tonnes \(from 100.6 Mt to 177.1 Mt\). Evidence · table > 23% Context: Total M&I **Contained Metal Growth** Polarity: positive Definition: True scale improvement — contained metal ounces/tonnes increased vs prior, accounting for both tonnage and grade changes. Why it applies: Consolidated Measured and Indicated \(M&I\) Mineral Resources increased by 12% in contained ounces \(from 18.16 Moz to 20.34 Moz\) and Inferred Mineral Resources increased by 61% in contained ounces \(from 2.17 Moz to 3.48 Moz\). Evidence · table > 12% Context: Total M&I **Category Upgrade** Polarity: positive Definition: Resource confidence improved — Inferred upgraded to Indicated, or Indicated to Measured. De-risking signal. Why it applies: The consolidated model allowed for increased delineation of the saddle area, adding 0.2 million ounces of Indicated Mineral Resources, and 0.6 million new Inferred ounces, indicating successful conversion and growth. Evidence · text > The consolidated model allowed for increased delineation of the saddle area between the Côté and Gosselin zones, with an additional 0.2 million ounces of Indicated Mineral Resources. **QP/CP Signed** Polarity: positive Definition: 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: Denis Decharte, P.Eng., Christine Beausoleil, P.Geo., and Marie-France Bugnon, P.Geo., are named as Qualified Persons responsible for the estimate and exploration activities. Evidence · text > Denis Decharte, P.Eng., Consultant Resource Geologist, SLR Consulting \(Canada\) Ltd., is the independent Qualified Person \(QP\) for the purposes of NI 43-101 with respect to the mineralization being reported on, and has prepared, reviewed, verified and approved the scientific and technical information relating to the Mineral Resource Estimates presented herein. Christine Beausoleil, P.Geo., Senior Director, Mining Geology, IAMGOLD Corporation is the Qualified Person \(QP\) for the purposes of NI 43-101 with respect to the mineralization being reported on and is responsible for the review and approval of all Mineral Resource estimates for IAMGOLD. Marie-France Bugnon, P.Geo., Vice President, Exploration, IAMGOLD Corporation is the Qualified Person \(QP\) for the purposes of NI 43-101 with respect to exploration activities reported on, and has prepared, reviewed, verified and approved the scientific and technical information disclosed in this document. **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: The resource estimate was prepared in accordance with National Instrument 43-101. Evidence · text > prepared in accordance with National Instrument 43-101 - Standards of Disclosure for Mineral Projects \("NI 43-101"\). **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: The consolidated Mineral Resource cut-off grade of 0.25 g/t Au is clearly stated. Evidence · text > a consolidated Mineral Resource cut-off grade of 0.25 g/t Au **Grade Decline** Polarity: negative Definition: Average grade fell below the red-flag bound vs prior estimate — deposit economics worsening. May indicate high-grading in early drilling. Why it applies: Consolidated Measured grade decreased by 4%, Indicated by 8%, and Inferred by 9%. Evidence · table > -8% Context: Total M&I **Dilutive Growth** Polarity: negative Definition: Tonnage increased but contained metal flat or down — likely from lower cut-off grade, not geological expansion. Why it applies: The increase in resources is partly driven by a lower cut-off grade \(0.30 g/t Au to 0.25 g/t Au\) and a higher gold price assumption \($2,100/oz to $2,500/oz for Côté\), which can inflate tonnage and contained metal while lowering average grades. Evidence · text > Updated assumptions include a gold price of $2,500 per ounce \(up from $2,100/oz for Côté and $2,500/oz for Gosselin in the prior statement\) and a consolidated Mineral Resource cut-off grade of 0.25 g/t Au \(down from 0.30 g/t Au previously\) **Category Downgrade** Polarity: negative Definition: Resource confidence decreased — Measured downgraded to Indicated, or Indicated to Inferred. Unusual and concerning. Why it applies: Gosselin Inferred Mineral Resources decreased by 7% in contained ounces, indicating a net loss of metal in this category. Evidence · table > -7% Context: Inferred **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: The document announces an updated Mineral Resource estimate for Côté Gold, comparing it to a prior estimate from December 31, 2025. Evidence · text > IAMGOLD Announces Consolidated Mineral Resource Estimate for Côté Gold ## Extracted facts Stored fact records: 10. Some facts used in scoring do not have a stored record. ## Resource Estimates (10) ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/iamgold-announces-consolidated-mineral-resource-estimate-for-c-xf4-t-xe9-gold--4df94d09-bbba-4c28-b8a0-160fa1b1830d#fact-resource-facts-0) Côté Gold · gold #### Identity - Project: Côté Gold - Commodity: gold - Region: canada\_on - Reported Region: Ontario, Canada - Ticker: IMG #### Resource scope - Estimate type: resource - Effective date: 2026-03-31T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Denis Decharte, Christine Beausoleil, Marie-France Bugnon - Resource group id: resource:d40f1b72e18f488807a8 - Deposit or zone: Côté - Mining method: combined #### Resource Data - Category: measured - Tonnes: 164400000 - Grade: 0.89 - Grade Unit: g/t - Contained Metal: 4.71 - Contained Unit: moz - Cutoff Grade: 0.25 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2026-03-31 - Prior Tonnes: 153900000 - Prior Grade: 0.93 - Prior Contained Metal: 4.6 - Prior Cutoff Grade: 0.3 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-06-01T00:00:00.000Z Reasoning: Measured resources for Côté show a modest increase in tonnes and contained ounces, but with a slight decrease in grade. The growth is partly influenced by the updated economic assumptions. - Positive factor: Measured tonnes increased by 7% and contained ounces by 2%, indicating a slight growth in the highest confidence category. - Positive factor: The resource is part of a consolidated model, improving overall project understanding. - Negative factor: Grade decreased by 4%, suggesting dilution. - Negative factor: The lower cut-off grade and higher gold price assumption contribute to the tonnage increase. Evidence · table > 164.4 Context: Measured #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **QP/CP Signed** Polarity: positive Definition: 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 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Dilutive Growth** Polarity: negative Definition: Tonnage increased but contained metal flat or down — likely from lower cut-off grade, not geological expansion. Why it applies: tonnage rose while contained metal went 4.71 from 4.6 **Cut-off Lowered** Polarity: negative Definition: Cut-off grade reduced beyond the suspicious bound vs prior estimate — tonnage growth may be artificial inflation. Why it applies: 0.25 against 0.3 previously **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/iamgold-announces-consolidated-mineral-resource-estimate-for-c-xf4-t-xe9-gold--4df94d09-bbba-4c28-b8a0-160fa1b1830d#fact-resource-facts-1) Côté Gold · gold #### Identity - Project: Côté Gold - Commodity: gold - Region: canada\_on - Reported Region: Ontario, Canada - Ticker: IMG #### Resource scope - Estimate type: resource - Effective date: 2026-03-31T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Denis Decharte, Christine Beausoleil, Marie-France Bugnon - Resource group id: resource:114c9deacdd237bb4f32 - Deposit or zone: Côté - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 353600000 - Grade: 0.71 - Grade Unit: g/t - Contained Metal: 8.03 - Contained Unit: moz - Cutoff Grade: 0.25 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2026-03-31 - Prior Tonnes: 268800000 - Prior Grade: 0.77 - Prior Contained Metal: 6.7 - Prior Cutoff Grade: 0.3 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-06-01T00:00:00.000Z Reasoning: Indicated resources for Côté show strong growth in both tonnes and contained ounces, which is a positive for project confidence, but this comes with a notable decrease in grade and is influenced by the updated economic assumptions. - Positive factor: Indicated tonnes increased significantly by 32% and contained ounces by 20%, representing substantial growth in this category. - Positive factor: The resource is part of a consolidated model, improving overall project understanding. - Negative factor: Grade decreased by 9%, indicating dilution. - Negative factor: The lower cut-off grade and higher gold price assumption contribute to the tonnage increase. Evidence · table > 353.6 Context: Indicated #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **QP/CP Signed** Polarity: positive Definition: 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 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Tonnage Growth** Polarity: positive Definition: Tonnage increase reaching the strong tier vs prior estimate, with grade maintained or improved. Why it applies: 353600000 against 268800000 previously **Grade Decline** Polarity: negative Definition: Average grade fell below the red-flag bound vs prior estimate — deposit economics worsening. May indicate high-grading in early drilling. Why it applies: 0.71 against 0.77 previously **Contained Metal Growth** Polarity: positive Definition: True scale improvement — contained metal ounces/tonnes increased vs prior, accounting for both tonnage and grade changes. Why it applies: 8.03 against 6.7 previously **Cut-off Lowered** Polarity: negative Definition: Cut-off grade reduced beyond the suspicious bound vs prior estimate — tonnage growth may be artificial inflation. Why it applies: 0.25 against 0.3 previously **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/iamgold-announces-consolidated-mineral-resource-estimate-for-c-xf4-t-xe9-gold--4df94d09-bbba-4c28-b8a0-160fa1b1830d#fact-resource-facts-2) Côté Gold · gold #### Identity - Project: Côté Gold - Commodity: gold - Region: canada\_on - Reported Region: Ontario, Canada - Ticker: IMG #### Resource scope - Estimate type: resource - Effective date: 2026-03-31T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Denis Decharte, Christine Beausoleil, Marie-France Bugnon - Resource group id: resource:bbf1484af09a24dd0203 - Deposit or zone: Côté - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 105200000 - Grade: 0.58 - Grade Unit: g/t - Contained Metal: 1.96 - Contained Unit: moz - Cutoff Grade: 0.25 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2026-03-31 - Prior Tonnes: 62800000 - Prior Grade: 0.6 - Prior Contained Metal: 1.21 - Prior Cutoff Grade: 0.3 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-06-01T00:00:00.000Z Reasoning: Inferred resources for Côté show very strong growth in both tonnes and contained ounces, which is positive for future exploration potential, despite a slight grade decrease and the influence of updated economic assumptions. - Positive factor: Inferred tonnes increased significantly by 68% and contained ounces by 63%, indicating substantial growth in potential resources. - Positive factor: The resource is part of a consolidated model, improving overall project understanding. - Negative factor: Grade decreased by 3%, indicating dilution. - Negative factor: The lower cut-off grade and higher gold price assumption contribute to the tonnage increase. Evidence · table > 105.2 Context: Inferred #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **QP/CP Signed** Polarity: positive Definition: 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 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Tonnage Growth** Polarity: positive Definition: Tonnage increase reaching the strong tier vs prior estimate, with grade maintained or improved. Why it applies: 105200000 against 62800000 previously **Contained Metal Growth** Polarity: positive Definition: True scale improvement — contained metal ounces/tonnes increased vs prior, accounting for both tonnage and grade changes. Why it applies: 1.96 against 1.21 previously **Cut-off Lowered** Polarity: negative Definition: Cut-off grade reduced beyond the suspicious bound vs prior estimate — tonnage growth may be artificial inflation. Why it applies: 0.25 against 0.3 previously **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/iamgold-announces-consolidated-mineral-resource-estimate-for-c-xf4-t-xe9-gold--4df94d09-bbba-4c28-b8a0-160fa1b1830d#fact-resource-facts-3) Côté Gold · gold #### Identity - Project: Côté Gold - Commodity: gold - Region: canada\_on - Reported Region: Ontario, Canada - Ticker: IMG #### Resource scope - Estimate type: resource - Effective date: 2026-03-31T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Denis Decharte, Christine Beausoleil, Marie-France Bugnon - Resource group id: resource:29726b3f96b8c761877b - Deposit or zone: Gosselin - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 310900000 - Grade: 0.74 - Grade Unit: g/t - Contained Metal: 7.43 - Contained Unit: moz - Cutoff Grade: 0.25 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2026-03-31 - Prior Tonnes: 266700000 - Prior Grade: 0.8 - Prior Contained Metal: 6.86 - Prior Cutoff Grade: 0.3 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-06-01T00:00:00.000Z Reasoning: Indicated resources for Gosselin show moderate growth in tonnes and contained ounces, but with a noticeable decrease in grade, influenced by the updated economic assumptions. - Positive factor: Indicated tonnes increased by 17% and contained ounces by 8%, showing growth in this category. - Positive factor: The resource is part of a consolidated model, improving overall project understanding. - Negative factor: Grade decreased by 7%, indicating dilution. - Negative factor: The lower cut-off grade contributes to the tonnage increase. Evidence · table > 310.9 Context: Indicated #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **QP/CP Signed** Polarity: positive Definition: 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 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Tonnage Growth** Polarity: positive Definition: Tonnage increase reaching the strong tier vs prior estimate, with grade maintained or improved. Why it applies: 310900000 against 266700000 previously **Grade Decline** Polarity: negative Definition: Average grade fell below the red-flag bound vs prior estimate — deposit economics worsening. May indicate high-grading in early drilling. Why it applies: 0.74 against 0.8 previously **Contained Metal Growth** Polarity: positive Definition: True scale improvement — contained metal ounces/tonnes increased vs prior, accounting for both tonnage and grade changes. Why it applies: 7.43 against 6.86 previously **Cut-off Lowered** Polarity: negative Definition: Cut-off grade reduced beyond the suspicious bound vs prior estimate — tonnage growth may be artificial inflation. Why it applies: 0.25 against 0.3 previously **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/iamgold-announces-consolidated-mineral-resource-estimate-for-c-xf4-t-xe9-gold--4df94d09-bbba-4c28-b8a0-160fa1b1830d#fact-resource-facts-4) Côté Gold · gold #### Identity - Project: Côté Gold - Commodity: gold - Region: canada\_on - Reported Region: Ontario, Canada - Ticker: IMG #### Resource scope - Estimate type: resource - Effective date: 2026-03-31T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Denis Decharte, Christine Beausoleil, Marie-France Bugnon - Resource group id: resource:65f35a51b32032adb165 - Deposit or zone: Gosselin - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 41400000 - Grade: 0.67 - Grade Unit: g/t - Contained Metal: 0.89 - Contained Unit: moz - Cutoff Grade: 0.25 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2026-03-31 - Prior Tonnes: 37800000 - Prior Grade: 0.79 - Prior Contained Metal: 0.96 - Prior Cutoff Grade: 0.3 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-06-01T00:00:00.000Z Reasoning: Inferred resources for Gosselin show a decrease in contained ounces and a significant drop in grade, despite a tonnage increase, which is a negative outcome for this category. - Positive factor: Tonnes increased by 10%, indicating some volume growth. - Negative factor: Contained ounces decreased by 7%, indicating a net loss of metal. - Negative factor: Grade decreased significantly by 15%, suggesting substantial dilution. - Negative factor: The lower cut-off grade contributes to the tonnage increase but not contained metal. Evidence · table > 41.4 Context: Inferred #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **QP/CP Signed** Polarity: positive Definition: 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 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Grade Decline** Polarity: negative Definition: Average grade fell below the red-flag bound vs prior estimate — deposit economics worsening. May indicate high-grading in early drilling. Why it applies: 0.67 against 0.79 previously **Contained Metal Decline** Polarity: negative Definition: Contained metal decreased vs prior despite tonnage growth — grade dilution exceeds volume gain. Why it applies: 0.89 against 0.96 previously **Dilutive Growth** Polarity: negative Definition: Tonnage increased but contained metal flat or down — likely from lower cut-off grade, not geological expansion. Why it applies: tonnage rose while contained metal went 0.89 from 0.96 **Cut-off Lowered** Polarity: negative Definition: Cut-off grade reduced beyond the suspicious bound vs prior estimate — tonnage growth may be artificial inflation. Why it applies: 0.25 against 0.3 previously **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/iamgold-announces-consolidated-mineral-resource-estimate-for-c-xf4-t-xe9-gold--4df94d09-bbba-4c28-b8a0-160fa1b1830d#fact-resource-facts-5) Côté Gold · gold #### Identity - Project: Côté Gold - Commodity: gold - Region: canada\_on - Reported Region: Ontario, Canada - Ticker: IMG #### Resource scope - Estimate type: resource - Effective date: 2026-03-31T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Denis Decharte, Christine Beausoleil, Marie-France Bugnon - Resource group id: resource:afc2eca66e2864c0d56c - Deposit or zone: Saddle Area - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 9100000 - Grade: 0.57 - Grade Unit: g/t - Contained Metal: 0.17 - Contained Unit: moz - Cutoff Grade: 0.25 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2026-03-31 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-06-01T00:00:00.000Z Reasoning: The addition of new Indicated resources in the saddle area is a positive development, demonstrating successful infill drilling and improved understanding of the mineralization between the Côté and Gosselin zones. - Positive factor: New Indicated resources were delineated in the saddle area, adding to the overall resource base. - Positive factor: This represents new mineralization between the main zones, improving continuity. - Negative factor: The grade of 0.57 g/t Au is moderate compared to other categories. Evidence · table > 9.1 Context: Indicated #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **QP/CP Signed** Polarity: positive Definition: 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 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/iamgold-announces-consolidated-mineral-resource-estimate-for-c-xf4-t-xe9-gold--4df94d09-bbba-4c28-b8a0-160fa1b1830d#fact-resource-facts-6) Côté Gold · gold #### Identity - Project: Côté Gold - Commodity: gold - Region: canada\_on - Reported Region: Ontario, Canada - Ticker: IMG #### Resource scope - Estimate type: resource - Effective date: 2026-03-31T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Denis Decharte, Christine Beausoleil, Marie-France Bugnon - Resource group id: resource:672bd2949a272c32eb49 - Deposit or zone: Saddle Area - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 30500000 - Grade: 0.64 - Grade Unit: g/t - Contained Metal: 0.63 - Contained Unit: moz - Cutoff Grade: 0.25 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2026-03-31 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-06-01T00:00:00.000Z Reasoning: The addition of new Inferred resources in the saddle area is a strong positive, highlighting successful exploration and the potential for further resource growth and conversion in this connecting zone. - Positive factor: New Inferred resources were delineated in the saddle area, adding significant potential to the overall resource base. - Positive factor: This represents new mineralization between the main zones, improving continuity and future exploration targets. - Negative factor: The grade of 0.64 g/t Au is moderate compared to other categories. Evidence · table > 30.5 Context: Inferred #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **QP/CP Signed** Polarity: positive Definition: 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 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/iamgold-announces-consolidated-mineral-resource-estimate-for-c-xf4-t-xe9-gold--4df94d09-bbba-4c28-b8a0-160fa1b1830d#fact-resource-facts-7) Côté Gold · gold #### Identity - Project: Côté Gold - Commodity: gold - Region: canada\_on - Reported Region: Ontario, Canada - Ticker: IMG #### Resource scope - Estimate type: resource - Effective date: 2026-03-31T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Denis Decharte, Christine Beausoleil, Marie-France Bugnon - Resource group id: resource:7444f3311576dd187a19 - Deposit or zone: Total Consolidated - Mining method: combined #### Resource Data - Category: measured - Tonnes: 164400000 - Grade: 0.89 - Grade Unit: g/t - Contained Metal: 4.71 - Contained Unit: moz - Cutoff Grade: 0.25 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2026-03-31 - Prior Tonnes: 153900000 - Prior Grade: 0.93 - Prior Contained Metal: 4.6 - Prior Cutoff Grade: 0.3 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-06-01T00:00:00.000Z Reasoning: The consolidated Measured resources show a modest increase in contained ounces, but with a slight grade decrease, influenced by the updated economic assumptions and model integration. - Positive factor: Consolidated Measured tonnes increased by 7% and contained ounces by 2%, indicating growth in the highest confidence category. - Positive factor: The consolidation provides a unified resource model for future planning. - Negative factor: Consolidated Measured grade decreased by 4%, suggesting dilution. - Negative factor: The lower cut-off grade and higher gold price assumption contribute to the tonnage increase. Evidence · table > 164.4 Context: Measured #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **QP/CP Signed** Polarity: positive Definition: 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 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Dilutive Growth** Polarity: negative Definition: Tonnage increased but contained metal flat or down — likely from lower cut-off grade, not geological expansion. Why it applies: tonnage rose while contained metal went 4.71 from 4.6 **Cut-off Lowered** Polarity: negative Definition: Cut-off grade reduced beyond the suspicious bound vs prior estimate — tonnage growth may be artificial inflation. Why it applies: 0.25 against 0.3 previously **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/iamgold-announces-consolidated-mineral-resource-estimate-for-c-xf4-t-xe9-gold--4df94d09-bbba-4c28-b8a0-160fa1b1830d#fact-resource-facts-8) Côté Gold · gold #### Identity - Project: Côté Gold - Commodity: gold - Region: canada\_on - Reported Region: Ontario, Canada - Ticker: IMG #### Resource scope - Estimate type: resource - Effective date: 2026-03-31T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Denis Decharte, Christine Beausoleil, Marie-France Bugnon - Resource group id: resource:5374adec87e13e4bbc7b - Deposit or zone: Total Consolidated - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 673600000 - Grade: 0.72 - Grade Unit: g/t - Contained Metal: 15.63 - Contained Unit: moz - Cutoff Grade: 0.25 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2026-03-31 - Prior Tonnes: 535600000 - Prior Grade: 0.79 - Prior Contained Metal: 13.56 - Prior Cutoff Grade: 0.3 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-06-01T00:00:00.000Z Reasoning: The consolidated Indicated resources show strong growth in contained ounces, which is highly material for project development, despite a grade decrease and the influence of updated economic assumptions. - Positive factor: Consolidated Indicated tonnes increased significantly by 26% and contained ounces by 15%, representing substantial growth in this key category. - Positive factor: The consolidation provides a unified resource model for future planning. - Negative factor: Consolidated Indicated grade decreased by 8%, indicating dilution. - Negative factor: The lower cut-off grade and higher gold price assumption contribute to the tonnage increase. Evidence · table > 673.6 Context: Indicated #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **QP/CP Signed** Polarity: positive Definition: 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 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Tonnage Growth** Polarity: positive Definition: Tonnage increase reaching the strong tier vs prior estimate, with grade maintained or improved. Why it applies: 673600000 against 535600000 previously **Grade Decline** Polarity: negative Definition: Average grade fell below the red-flag bound vs prior estimate — deposit economics worsening. May indicate high-grading in early drilling. Why it applies: 0.72 against 0.79 previously **Contained Metal Growth** Polarity: positive Definition: True scale improvement — contained metal ounces/tonnes increased vs prior, accounting for both tonnage and grade changes. Why it applies: 15.63 against 13.56 previously **Cut-off Lowered** Polarity: negative Definition: Cut-off grade reduced beyond the suspicious bound vs prior estimate — tonnage growth may be artificial inflation. Why it applies: 0.25 against 0.3 previously **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/iamgold-announces-consolidated-mineral-resource-estimate-for-c-xf4-t-xe9-gold--4df94d09-bbba-4c28-b8a0-160fa1b1830d#fact-resource-facts-9) Côté Gold · gold #### Identity - Project: Côté Gold - Commodity: gold - Region: canada\_on - Reported Region: Ontario, Canada - Ticker: IMG #### Resource scope - Estimate type: resource - Effective date: 2026-03-31T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Denis Decharte, Christine Beausoleil, Marie-France Bugnon - Resource group id: resource:6c83900753ccd7f6c1a3 - Deposit or zone: Total Consolidated - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 177100000 - Grade: 0.61 - Grade Unit: g/t - Contained Metal: 3.48 - Contained Unit: moz - Cutoff Grade: 0.25 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2026-03-31 - Prior Tonnes: 100600000 - Prior Grade: 0.67 - Prior Contained Metal: 2.17 - Prior Cutoff Grade: 0.3 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-06-01T00:00:00.000Z Reasoning: The consolidated Inferred resources show very strong growth in contained ounces, which is positive for long-term potential, despite a grade decrease and the influence of updated economic assumptions. - Positive factor: Consolidated Inferred tonnes increased significantly by 76% and contained ounces by 61%, indicating substantial growth in potential resources. - Positive factor: The consolidation provides a unified resource model for future planning. - Negative factor: Consolidated Inferred grade decreased by 9%, indicating dilution. - Negative factor: The lower cut-off grade and higher gold price assumption contribute to the tonnage increase. Evidence · table > 177.1 Context: Inferred #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **QP/CP Signed** Polarity: positive Definition: 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 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Tonnage Growth** Polarity: positive Definition: Tonnage increase reaching the strong tier vs prior estimate, with grade maintained or improved. Why it applies: 177100000 against 100600000 previously **Grade Decline** Polarity: negative Definition: Average grade fell below the red-flag bound vs prior estimate — deposit economics worsening. May indicate high-grading in early drilling. Why it applies: 0.61 against 0.67 previously **Contained Metal Growth** Polarity: positive Definition: True scale improvement — contained metal ounces/tonnes increased vs prior, accounting for both tonnage and grade changes. Why it applies: 3.48 against 2.17 previously **Cut-off Lowered** Polarity: negative Definition: Cut-off grade reduced beyond the suspicious bound vs prior estimate — tonnage growth may be artificial inflation. Why it applies: 0.25 against 0.3 previously **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate ## How Atlas produces this analysis Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.