# Aris Mining Announces Major Developments at Soto Norte Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/aris-mining-announces-major-developments-at-soto-norte--e1990d6e-21c8-449e-82fe-5a18e73ca78f Original source: https://orestocks.com/company/ARIS.TO/press-releases/8053270647864909 Publisher: orestocks Original announcement: 2026-09-30T12:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: 2026-09-30T12:50:01.217Z Atlas analysis updated: 2026-09-30T12:50:01.217Z - Company: Aris Mining Corporation - Ticker: ARIS.TO - Exchange: Unavailable - Region: Santander, Colombia - Primary commodity: Gold - Secondary commodities: Copper, Silver - Document categories: Resource update, Permitting - Extracted: 2026-09-30 12:50:01 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Aris Mining announced major developments at its Soto Norte gold-copper project in Colombia, including the completion of the Environmental and Social Impact Assessment \(ESIA\) preparation and the launch of community engagement. Key regulatory constraints have been removed by the new administration, clearing the path for environmental licensing. The company also reported updated NI 43-101 compliant mineral reserve and resource estimates, effective August 18, 2025, highlighting 4.6 million ounces of gold in proven and probable reserves at 7.0 g/t Au. Reasoning: Aris Mining has made significant progress on its Soto Norte project, completing ESIA preparation and seeing key regulatory hurdles removed, which de-risks the project's path to environmental licensing. The updated resource and reserve estimates confirm a high-grade, long-life gold project with substantial contained metal. - Positive factor: ESIA preparation complete - Positive factor: Regulatory constraints removed - Positive factor: High-grade gold project - Positive factor: Significant contained metal - Positive factor: Community engagement launched - Positive factor: NI 43-101 compliant resource and reserve estimates Low confidence — this extraction should be reviewed alongside the original source. Facts used in scoring: 21 ## Classification and evidence **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: The mineral reserve and resource estimates are prepared in compliance with National Instrument 43-101 \(NI 43-101\). Evidence · text > Pamela De Mark, P.Geo., Senior Vice President Geology and Exploration of Aris Mining, is a Qualified Person as defined by National Instrument 43-101 \(NI 43-101\), and has reviewed and approved the technical information contained in this news release. **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: Pamela De Mark, P.Geo., a Qualified Person, has reviewed and approved the technical information. Evidence · text > Pamela De Mark, P.Geo., Senior Vice President Geology and Exploration of Aris Mining, is a Qualified Person as defined by National Instrument 43-101 \(NI 43-101\), and has reviewed and approved the technical information contained in this news release. **Proven Reserve** Polarity: positive Definition: Measured Resource with demonstrated economic viability after applying modifying factors. Why it applies: The mineral reserve estimate includes a 'Proven' category. Evidence · table > Proven Context: 2.6 **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: The mineral reserve estimate includes a 'Probable' category. Evidence · table > Probable Context: 17.7 **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: The mineral resource estimate includes a 'Measured' category. Evidence · table > Measured Context: 3.8 **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: The mineral resource estimate includes an 'Indicated' category. Evidence · table > Indicated Context: 35.2 **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: Cut-off grades for both mineral reserves \(2.0 g/t Au\) and resources \(1.6 g/t Au\) are clearly stated. Evidence · text > A gold price of US$2,200 per ounce was used for the mineral reserve estimate. - The mineral reserve estimate was constrained within mineable optimizer shapes and utilized a cut-off grade of 2.0 g/t Au. **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: The technical report supporting the estimates is a Prefeasibility Study. Evidence · text > See technical report entitled “NI 43-101 Technical Report Prefeasibility Study for the Soto Norte Project, Santander, Colombia” dated September 3, 2025 with an effective date of August 18, 2025. **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: The document provides updated mineral reserve and resource estimates for an existing project. Evidence · text > Aris Mining Announces Major Developments at Soto Norte **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: The mineral resource estimate includes an 'Inferred' category, which is a speculative category. Evidence · table > Inferred Context: 25.1 ## Extracted facts Stored fact records: 21. Some facts used in scoring do not have a stored record. ## Resource Estimates (21) ### proven [Link to this fact](https://atlas-staging.minestarters.com/news/aris-mining-announces-major-developments-at-soto-norte--e1990d6e-21c8-449e-82fe-5a18e73ca78f#fact-resource-facts-0) Soto Norte · gold #### Identity - Project: Soto Norte - Commodity: gold - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS.TO #### Resource scope - Estimate type: reserve - Effective date: 2025-08-18T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Pamela De Mark - Resource group id: resource:bd386e40a7c8638e610b - Mining method: underground #### Resource Data - Category: proven - Tonnes: 2600000 - Grade: 8.78 - Grade Unit: g/t - Contained Metal: 0.7 - Contained Unit: moz - Cutoff Grade: 2 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: This represents a high-confidence reserve category with strong grades and significant contained metal, contributing positively to project economics. - Positive factor: High confidence category - Positive factor: High grade - Positive factor: Significant contained metal Evidence · table > 8.78 Context: 2.6 #### Tags used in scoring **Proven Reserve** Polarity: positive Definition: Measured Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "proven" **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 **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 **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports ### proven [Link to this fact](https://atlas-staging.minestarters.com/news/aris-mining-announces-major-developments-at-soto-norte--e1990d6e-21c8-449e-82fe-5a18e73ca78f#fact-resource-facts-1) Soto Norte · silver #### Identity - Project: Soto Norte - Commodity: silver - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS.TO #### Resource scope - Estimate type: reserve - Effective date: 2025-08-18T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Pamela De Mark - Resource group id: resource:bd386e40a7c8638e610b - Mining method: underground #### Resource Data - Category: proven - Tonnes: 2600000 - Grade: 37.1 - Grade Unit: g/t - Contained Metal: 3 - Contained Unit: moz - Cutoff Grade: 2 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: This represents a high-confidence reserve category with strong grades and significant contained metal, contributing positively to project economics. - Positive factor: High confidence category - Positive factor: High grade - Positive factor: Significant contained metal Evidence · table > 37.1 Context: 2.6 #### Tags used in scoring **Proven Reserve** Polarity: positive Definition: Measured Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "proven" **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 **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 **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports ### proven [Link to this fact](https://atlas-staging.minestarters.com/news/aris-mining-announces-major-developments-at-soto-norte--e1990d6e-21c8-449e-82fe-5a18e73ca78f#fact-resource-facts-2) Soto Norte · copper #### Identity - Project: Soto Norte - Commodity: copper - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS.TO #### Resource scope - Estimate type: reserve - Effective date: 2025-08-18T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Pamela De Mark - Resource group id: resource:bd386e40a7c8638e610b - Mining method: underground #### Resource Data - Category: proven - Tonnes: 2600000 - Grade: 0.25 - Grade Unit: % - Contained Metal: 14.2 - Contained Unit: mlb - Cutoff Grade: 2 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: This represents a high-confidence reserve category with strong grades and significant contained metal, contributing positively to project economics. - Positive factor: High confidence category - Positive factor: High grade - Positive factor: Significant contained metal Evidence · table > 0.25 Context: 2.6 #### Tags used in scoring **Proven Reserve** Polarity: positive Definition: Measured Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "proven" **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 **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 **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/aris-mining-announces-major-developments-at-soto-norte--e1990d6e-21c8-449e-82fe-5a18e73ca78f#fact-resource-facts-3) Soto Norte · gold #### Identity - Project: Soto Norte - Commodity: gold - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS.TO #### Resource scope - Estimate type: reserve - Effective date: 2025-08-18T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Pamela De Mark - Resource group id: resource:930f3a0ccf65c0113c15 - Mining method: underground #### Resource Data - Category: probable - Tonnes: 17700000 - Grade: 6.72 - Grade Unit: g/t - Contained Metal: 3.8 - Contained Unit: moz - Cutoff Grade: 2 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: This represents a good confidence reserve category with solid grades and significant contained metal, supporting project viability. - Positive factor: Good confidence category - Positive factor: Good grade - Positive factor: Significant contained metal Evidence · table > 6.72 Context: 17.7 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 **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 **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/aris-mining-announces-major-developments-at-soto-norte--e1990d6e-21c8-449e-82fe-5a18e73ca78f#fact-resource-facts-4) Soto Norte · silver #### Identity - Project: Soto Norte - Commodity: silver - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS.TO #### Resource scope - Estimate type: reserve - Effective date: 2025-08-18T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Pamela De Mark - Resource group id: resource:930f3a0ccf65c0113c15 - Mining method: underground #### Resource Data - Category: probable - Tonnes: 17700000 - Grade: 31.4 - Grade Unit: g/t - Contained Metal: 17.9 - Contained Unit: moz - Cutoff Grade: 2 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: This represents a good confidence reserve category with solid grades and significant contained metal, supporting project viability. - Positive factor: Good confidence category - Positive factor: Good grade - Positive factor: Significant contained metal Evidence · table > 31.4 Context: 17.7 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 **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 **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/aris-mining-announces-major-developments-at-soto-norte--e1990d6e-21c8-449e-82fe-5a18e73ca78f#fact-resource-facts-5) Soto Norte · copper #### Identity - Project: Soto Norte - Commodity: copper - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS.TO #### Resource scope - Estimate type: reserve - Effective date: 2025-08-18T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Pamela De Mark - Resource group id: resource:930f3a0ccf65c0113c15 - Mining method: underground #### Resource Data - Category: probable - Tonnes: 17700000 - Grade: 0.19 - Grade Unit: % - Contained Metal: 75 - Contained Unit: mlb - Cutoff Grade: 2 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: This represents a good confidence reserve category with solid grades and significant contained metal, supporting project viability. - Positive factor: Good confidence category - Positive factor: Good grade - Positive factor: Significant contained metal Evidence · table > 0.19 Context: 17.7 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 **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 **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/aris-mining-announces-major-developments-at-soto-norte--e1990d6e-21c8-449e-82fe-5a18e73ca78f#fact-resource-facts-6) Soto Norte · gold #### Identity - Project: Soto Norte - Commodity: gold - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS.TO #### Resource scope - Estimate type: reserve - Effective date: 2025-08-18T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Pamela De Mark - Resource group id: resource:7fb6733a6842fed7a94a - Mining method: underground #### Resource Data - Category: probable - Tonnes: 20300000 - Grade: 7 - Grade Unit: g/t - Contained Metal: 4.6 - Contained Unit: moz - Cutoff Grade: 2 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: This represents a good confidence reserve category \(as the lower confidence of Proven+Probable\) with solid grades and significant contained metal, supporting project viability. - Positive factor: Good confidence category - Positive factor: Good grade - Positive factor: Significant contained metal Evidence · table > 7.00 Context: 20.3 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 **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 **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/aris-mining-announces-major-developments-at-soto-norte--e1990d6e-21c8-449e-82fe-5a18e73ca78f#fact-resource-facts-7) Soto Norte · silver #### Identity - Project: Soto Norte - Commodity: silver - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS.TO #### Resource scope - Estimate type: reserve - Effective date: 2025-08-18T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Pamela De Mark - Resource group id: resource:7fb6733a6842fed7a94a - Mining method: underground #### Resource Data - Category: probable - Tonnes: 20300000 - Grade: 32.1 - Grade Unit: g/t - Contained Metal: 20.9 - Contained Unit: moz - Cutoff Grade: 2 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: This represents a good confidence reserve category \(as the lower confidence of Proven+Probable\) with solid grades and significant contained metal, supporting project viability. - Positive factor: Good confidence category - Positive factor: Good grade - Positive factor: Significant contained metal Evidence · table > 32.1 Context: 20.3 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 **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 **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/aris-mining-announces-major-developments-at-soto-norte--e1990d6e-21c8-449e-82fe-5a18e73ca78f#fact-resource-facts-8) Soto Norte · copper #### Identity - Project: Soto Norte - Commodity: copper - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS.TO #### Resource scope - Estimate type: reserve - Effective date: 2025-08-18T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Pamela De Mark - Resource group id: resource:7fb6733a6842fed7a94a - Mining method: underground #### Resource Data - Category: probable - Tonnes: 20300000 - Grade: 0.2 - Grade Unit: % - Contained Metal: 89.2 - Contained Unit: mlb - Cutoff Grade: 2 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: This represents a good confidence reserve category \(as the lower confidence of Proven+Probable\) with solid grades and significant contained metal, supporting project viability. - Positive factor: Good confidence category - Positive factor: Good grade - Positive factor: Significant contained metal Evidence · table > 0.20 Context: 20.3 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 **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 **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-staging.minestarters.com/news/aris-mining-announces-major-developments-at-soto-norte--e1990d6e-21c8-449e-82fe-5a18e73ca78f#fact-resource-facts-9) Soto Norte · gold #### Identity - Project: Soto Norte - Commodity: gold - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS.TO #### Resource scope - Estimate type: resource - Effective date: 2025-08-18T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Pamela De Mark - Resource group id: resource:d466c4b7c0029a10c01c - Mining method: underground #### Resource Data - Category: measured - Tonnes: 3800000 - Grade: 7.99 - Grade Unit: g/t - Contained Metal: 1 - Contained Unit: moz - Cutoff Grade: 1.6 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: This represents a high-confidence resource category with strong grades and significant contained metal, contributing positively to project economics. - Positive factor: High confidence category - Positive factor: High grade - Positive factor: Significant contained metal Evidence · table > 7.99 Context: 3.8 #### 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 **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 **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-staging.minestarters.com/news/aris-mining-announces-major-developments-at-soto-norte--e1990d6e-21c8-449e-82fe-5a18e73ca78f#fact-resource-facts-10) Soto Norte · silver #### Identity - Project: Soto Norte - Commodity: silver - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS.TO #### Resource scope - Estimate type: resource - Effective date: 2025-08-18T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Pamela De Mark - Resource group id: resource:d466c4b7c0029a10c01c - Mining method: underground #### Resource Data - Category: measured - Tonnes: 3800000 - Grade: 36.8 - Grade Unit: g/t - Contained Metal: 4.6 - Contained Unit: moz - Cutoff Grade: 1.6 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: This represents a high-confidence resource category with strong grades and significant contained metal, contributing positively to project economics. - Positive factor: High confidence category - Positive factor: High grade - Positive factor: Significant contained metal Evidence · table > 36.8 Context: 3.8 #### 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 **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 **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-staging.minestarters.com/news/aris-mining-announces-major-developments-at-soto-norte--e1990d6e-21c8-449e-82fe-5a18e73ca78f#fact-resource-facts-11) Soto Norte · copper #### Identity - Project: Soto Norte - Commodity: copper - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS.TO #### Resource scope - Estimate type: resource - Effective date: 2025-08-18T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Pamela De Mark - Resource group id: resource:d466c4b7c0029a10c01c - Mining method: underground #### Resource Data - Category: measured - Tonnes: 3800000 - Grade: 0.25 - Grade Unit: % - Contained Metal: 21.4 - Contained Unit: mlb - Cutoff Grade: 1.6 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: This represents a high-confidence resource category with strong grades and significant contained metal, contributing positively to project economics. - Positive factor: High confidence category - Positive factor: High grade - Positive factor: Significant contained metal Evidence · table > 0.25 Context: 3.8 #### 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 **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 **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/aris-mining-announces-major-developments-at-soto-norte--e1990d6e-21c8-449e-82fe-5a18e73ca78f#fact-resource-facts-12) Soto Norte · gold #### Identity - Project: Soto Norte - Commodity: gold - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS.TO #### Resource scope - Estimate type: resource - Effective date: 2025-08-18T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Pamela De Mark - Resource group id: resource:7a7f9d603e916322241b - Mining method: underground #### Resource Data - Category: indicated - Tonnes: 35200000 - Grade: 5.29 - Grade Unit: g/t - Contained Metal: 6 - Contained Unit: moz - Cutoff Grade: 1.6 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: This represents a good confidence resource category with solid grades and significant contained metal, supporting project viability. - Positive factor: Good confidence category - Positive factor: Good grade - Positive factor: Significant contained metal Evidence · table > 5.29 Context: 35.2 #### 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 **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 **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/aris-mining-announces-major-developments-at-soto-norte--e1990d6e-21c8-449e-82fe-5a18e73ca78f#fact-resource-facts-13) Soto Norte · silver #### Identity - Project: Soto Norte - Commodity: silver - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS.TO #### Resource scope - Estimate type: resource - Effective date: 2025-08-18T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Pamela De Mark - Resource group id: resource:7a7f9d603e916322241b - Mining method: underground #### Resource Data - Category: indicated - Tonnes: 35200000 - Grade: 27.3 - Grade Unit: g/t - Contained Metal: 30.9 - Contained Unit: moz - Cutoff Grade: 1.6 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: This represents a good confidence resource category with solid grades and significant contained metal, supporting project viability. - Positive factor: Good confidence category - Positive factor: Good grade - Positive factor: Significant contained metal Evidence · table > 27.3 Context: 35.2 #### 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 **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 **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/aris-mining-announces-major-developments-at-soto-norte--e1990d6e-21c8-449e-82fe-5a18e73ca78f#fact-resource-facts-14) Soto Norte · copper #### Identity - Project: Soto Norte - Commodity: copper - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS.TO #### Resource scope - Estimate type: resource - Effective date: 2025-08-18T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Pamela De Mark - Resource group id: resource:7a7f9d603e916322241b - Mining method: underground #### Resource Data - Category: indicated - Tonnes: 35200000 - Grade: 0.18 - Grade Unit: % - Contained Metal: 137.8 - Contained Unit: mlb - Cutoff Grade: 1.6 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: This represents a good confidence resource category with solid grades and significant contained metal, supporting project viability. - Positive factor: Good confidence category - Positive factor: Good grade - Positive factor: Significant contained metal Evidence · table > 0.18 Context: 35.2 #### 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 **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 **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/aris-mining-announces-major-developments-at-soto-norte--e1990d6e-21c8-449e-82fe-5a18e73ca78f#fact-resource-facts-15) Soto Norte · gold #### Identity - Project: Soto Norte - Commodity: gold - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS.TO #### Resource scope - Estimate type: resource - Effective date: 2025-08-18T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Pamela De Mark - Resource group id: resource:640a33d2aca1f55207ac - Mining method: underground #### Resource Data - Category: indicated - Tonnes: 39000000 - Grade: 5.55 - Grade Unit: g/t - Contained Metal: 7 - Contained Unit: moz - Cutoff Grade: 1.6 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: This represents a good confidence resource category \(as the lower confidence of Measured+Indicated\) with solid grades and significant contained metal, supporting project viability. - Positive factor: Good confidence category - Positive factor: Good grade - Positive factor: Significant contained metal Evidence · table > 5.55 Context: 39.0 #### 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 **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 **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/aris-mining-announces-major-developments-at-soto-norte--e1990d6e-21c8-449e-82fe-5a18e73ca78f#fact-resource-facts-16) Soto Norte · silver #### Identity - Project: Soto Norte - Commodity: silver - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS.TO #### Resource scope - Estimate type: resource - Effective date: 2025-08-18T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Pamela De Mark - Resource group id: resource:640a33d2aca1f55207ac - Mining method: underground #### Resource Data - Category: indicated - Tonnes: 39000000 - Grade: 28.2 - Grade Unit: g/t - Contained Metal: 35.5 - Contained Unit: moz - Cutoff Grade: 1.6 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: This represents a good confidence resource category \(as the lower confidence of Measured+Indicated\) with solid grades and significant contained metal, supporting project viability. - Positive factor: Good confidence category - Positive factor: Good grade - Positive factor: Significant contained metal Evidence · table > 28.2 Context: 39.0 #### 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 **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 **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/aris-mining-announces-major-developments-at-soto-norte--e1990d6e-21c8-449e-82fe-5a18e73ca78f#fact-resource-facts-17) Soto Norte · copper #### Identity - Project: Soto Norte - Commodity: copper - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS.TO #### Resource scope - Estimate type: resource - Effective date: 2025-08-18T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Pamela De Mark - Resource group id: resource:640a33d2aca1f55207ac - Mining method: underground #### Resource Data - Category: indicated - Tonnes: 39000000 - Grade: 0.19 - Grade Unit: % - Contained Metal: 159.2 - Contained Unit: mlb - Cutoff Grade: 1.6 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: This represents a good confidence resource category \(as the lower confidence of Measured+Indicated\) with solid grades and significant contained metal, supporting project viability. - Positive factor: Good confidence category - Positive factor: Good grade - Positive factor: Significant contained metal Evidence · table > 0.19 Context: 39.0 #### 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 **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 **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/aris-mining-announces-major-developments-at-soto-norte--e1990d6e-21c8-449e-82fe-5a18e73ca78f#fact-resource-facts-18) Soto Norte · gold #### Identity - Project: Soto Norte - Commodity: gold - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS.TO #### Resource scope - Estimate type: resource - Effective date: 2025-08-18T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Pamela De Mark - Resource group id: resource:1fa8e1d3ab7be60c78c7 - Mining method: underground #### Resource Data - Category: inferred - Tonnes: 25100000 - Grade: 4.81 - Grade Unit: g/t - Contained Metal: 3.9 - Contained Unit: moz - Cutoff Grade: 1.6 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: This represents a lower confidence resource category, providing exploration upside but requiring further drilling to upgrade confidence. - Positive factor: Adds to overall resource base - Positive factor: Good grade potential - Negative factor: Lower confidence category Evidence · table > 4.81 Context: 25.1 #### 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 **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 **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/aris-mining-announces-major-developments-at-soto-norte--e1990d6e-21c8-449e-82fe-5a18e73ca78f#fact-resource-facts-19) Soto Norte · silver #### Identity - Project: Soto Norte - Commodity: silver - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS.TO #### Resource scope - Estimate type: resource - Effective date: 2025-08-18T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Pamela De Mark - Resource group id: resource:1fa8e1d3ab7be60c78c7 - Mining method: underground #### Resource Data - Category: inferred - Tonnes: 25100000 - Grade: 24.6 - Grade Unit: g/t - Contained Metal: 19.9 - Contained Unit: moz - Cutoff Grade: 1.6 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: This represents a lower confidence resource category, providing exploration upside but requiring further drilling to upgrade confidence. - Positive factor: Adds to overall resource base - Positive factor: Good grade potential - Negative factor: Lower confidence category Evidence · table > 24.6 Context: 25.1 #### 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 **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 **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/aris-mining-announces-major-developments-at-soto-norte--e1990d6e-21c8-449e-82fe-5a18e73ca78f#fact-resource-facts-20) Soto Norte · copper #### Identity - Project: Soto Norte - Commodity: copper - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS.TO #### Resource scope - Estimate type: resource - Effective date: 2025-08-18T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Pamela De Mark - Resource group id: resource:1fa8e1d3ab7be60c78c7 - Mining method: underground #### Resource Data - Category: inferred - Tonnes: 25100000 - Grade: 0.13 - Grade Unit: % - Contained Metal: 74.5 - Contained Unit: mlb - Cutoff Grade: 1.6 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: This represents a lower confidence resource category, providing exploration upside but requiring further drilling to upgrade confidence. - Positive factor: Adds to overall resource base - Positive factor: Good grade potential - Negative factor: Lower confidence category Evidence · table > 0.13 Context: 25.1 #### 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 **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 **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports ## How Atlas produces this analysis Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.