# Regulus Announces Completion of Mineral Resource Estimate for Integrated Coimolache Sulphide/AntaKori Copper-Gold Project Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/regulus-announces-completion-of-mineral-resource-estimate-for-integrated-coimola--a10521cd-4432-4f47-991e-0bc79f82e6f1 Original source: https://money.tmx.com/en/quote/REG/news/7917977430496649/regulus-announces-completion-of-mineral-resource-estimate-for-integrated-coimola Publisher: tmx Original announcement: 2026-06-30T11:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Regulus Resources Inc. - Ticker: REG - Exchange: TSX - Region: Cajamarca, Peru - Primary commodity: Copper - Secondary commodities: Gold, Silver - Document categories: Resource update, Agreement transaction - Extracted: 2026-09-16 18:34:41 UTC Narrative sentiment: 0.20 · Bullish ## Minestarters Atlas summary Regulus Resources Inc. has completed an integrated mineral resource estimate for the Coimolache Sulphide/AntaKori copper-gold project in Peru. While the integrated MRE is an internal report and not yet public, it represents a significant step in evaluating the district-scale potential through collaboration with Coimolache S.A. Reasoning: The company announced the completion of a milestone integrated MRE, but because the results are internal and not publicly disclosed, the immediate impact on valuation is constrained by lack of transparency. - Positive factor: Completion of an integrated MRE covering both AntaKori and Coimolache concessions - Positive factor: Removal of property boundaries to focus on district-scale mineralization - Positive factor: Collaboration with Coimolache S.A. to de-risk the integrated project - Negative factor: The new integrated MRE results are not being made public immediately - Negative factor: The actual data from the integrated MRE is currently held in an internal report Facts used in scoring: 6 ## Classification and evidence **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: The announcement discusses the completion of a mineral resource estimate for the integrated project. Evidence · text > have completed the first phase of the collaboration agreement... starting with the completion of a mineral resource estimate \(“ MRE ”\) **Nearology Play** Polarity: neutral Story-specific tag Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: The project value is driven by the adjacency and integration of the AntaKori and Coimolache concessions. Evidence · text > The AntaKori project is immediately adjacent to and interfingered with mineral concessions owned by Coimolache. ## Extracted facts Stored fact records: 6. Some facts used in scoring do not have a stored record. ## Resource Estimates (6) ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/regulus-announces-completion-of-mineral-resource-estimate-for-integrated-coimola--a10521cd-4432-4f47-991e-0bc79f82e6f1#fact-resource-facts-0) AntaKori · copper Historical result Needs review: historical\_restatement #### Identity - Project: AntaKori - Commodity: copper - Region: peru - Reported Region: Cajamarca, Peru - Ticker: REG #### Resource scope - Estimate type: resource - Resource group id: resource:96b34687776b5000ccf5 #### Resource Data - Category: indicated - Tonnes: 250000000 - Grade: 0.48 - Grade Unit: % #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2019-02-22T00:00:00.000Z #### Dates - Event date: 2026-06-30T00:00:00.000Z Reasoning: This is a restatement of the 2019 indicated resource for AntaKori. Evidence · text > indicated mineral resources of 250 million tonnes with a grade of 0.48 % Cu #### 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 Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported **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 **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 7.4 years before this release ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/regulus-announces-completion-of-mineral-resource-estimate-for-integrated-coimola--a10521cd-4432-4f47-991e-0bc79f82e6f1#fact-resource-facts-1) AntaKori · gold Historical result Needs review: historical\_restatement #### Identity - Project: AntaKori - Commodity: gold - Region: peru - Reported Region: Cajamarca, Peru - Ticker: REG #### Resource scope - Estimate type: resource - Resource group id: resource:96b34687776b5000ccf5 #### Resource Data - Category: indicated - Tonnes: 250000000 - Grade: 0.29 - Grade Unit: g/t #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2019-02-22T00:00:00.000Z #### Dates - Event date: 2026-06-30T00:00:00.000Z Reasoning: This is a restatement of the 2019 indicated gold grade for AntaKori. Evidence · text > indicated mineral resources of 250 million tonnes with a grade of 0.48 % Cu, 0.29 g/t Au #### 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 Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported **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 **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 7.4 years before this release ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/regulus-announces-completion-of-mineral-resource-estimate-for-integrated-coimola--a10521cd-4432-4f47-991e-0bc79f82e6f1#fact-resource-facts-2) AntaKori · silver Historical result Needs review: historical\_restatement #### Identity - Project: AntaKori - Commodity: silver - Region: peru - Reported Region: Cajamarca, Peru - Ticker: REG #### Resource scope - Estimate type: resource - Resource group id: resource:96b34687776b5000ccf5 #### Resource Data - Category: indicated - Tonnes: 250000000 - Grade: 7.5 - Grade Unit: g/t #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2019-02-22T00:00:00.000Z #### Dates - Event date: 2026-06-30T00:00:00.000Z Reasoning: This is a restatement of the 2019 indicated silver grade for AntaKori. Evidence · text > indicated mineral resources of 250 million tonnes with a grade of 0.48 % Cu, 0.29 g/t Au, 7.5 g/t Ag #### 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 Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported **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 **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 7.4 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/regulus-announces-completion-of-mineral-resource-estimate-for-integrated-coimola--a10521cd-4432-4f47-991e-0bc79f82e6f1#fact-resource-facts-3) AntaKori · copper Historical result Needs review: historical\_restatement #### Identity - Project: AntaKori - Commodity: copper - Region: peru - Reported Region: Cajamarca, Peru - Ticker: REG #### Resource scope - Estimate type: resource - Resource group id: resource:400972a4bd3bb3d08e87 #### Resource Data - Category: inferred - Tonnes: 267000000 - Grade: 0.41 - Grade Unit: % #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2019-02-22T00:00:00.000Z #### Dates - Event date: 2026-06-30T00:00:00.000Z Reasoning: This is a restatement of the 2019 inferred resource for AntaKori. Evidence · text > inferred mineral resources of 267 million tonnes with a grade of 0.41 % Cu #### 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 Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported **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 **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 7.4 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/regulus-announces-completion-of-mineral-resource-estimate-for-integrated-coimola--a10521cd-4432-4f47-991e-0bc79f82e6f1#fact-resource-facts-4) AntaKori · gold Historical result Needs review: historical\_restatement #### Identity - Project: AntaKori - Commodity: gold - Region: peru - Reported Region: Cajamarca, Peru - Ticker: REG #### Resource scope - Estimate type: resource - Resource group id: resource:400972a4bd3bb3d08e87 #### Resource Data - Category: inferred - Tonnes: 267000000 - Grade: 0.26 - Grade Unit: g/t #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2019-02-22T00:00:00.000Z #### Dates - Event date: 2026-06-30T00:00:00.000Z Reasoning: This is a restatement of the 2019 inferred gold grade for AntaKori. Evidence · text > inferred mineral resources of 267 million tonnes with a grade of 0.41 % Cu, 0.26 g/t Au #### 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 Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported **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 **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 7.4 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/regulus-announces-completion-of-mineral-resource-estimate-for-integrated-coimola--a10521cd-4432-4f47-991e-0bc79f82e6f1#fact-resource-facts-5) AntaKori · silver Historical result Needs review: historical\_restatement #### Identity - Project: AntaKori - Commodity: silver - Region: peru - Reported Region: Cajamarca, Peru - Ticker: REG #### Resource scope - Estimate type: resource - Resource group id: resource:400972a4bd3bb3d08e87 #### Resource Data - Category: inferred - Tonnes: 267000000 - Grade: 7.8 - Grade Unit: g/t #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2019-02-22T00:00:00.000Z #### Dates - Event date: 2026-06-30T00:00:00.000Z Reasoning: This is a restatement of the 2019 inferred silver grade for AntaKori. Evidence · text > inferred mineral resources of 267 million tonnes with a grade of 0.41 % Cu, 0.26 g/t Au, and 7.8 g/t Ag #### 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 Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported **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 **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 7.4 years before this release ## 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.