# 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--5b81e069-752c-4a23-8ea8-b366ab321e8e Original source: https://www.juniorminingnetwork.com/junior-miner-news/press-releases/2767-tsx/aris/212059-aris-mining-announces-major-developments-at-soto-norte.html Publisher: jmn Original announcement: 2026-09-30T18:25:13.000Z Analysis by Minestarters Atlas Atlas analysis published: 2026-09-30T12:23:14.832Z Atlas analysis updated: 2026-09-30T12:23:14.832Z - Company: Aris Mining Corporation - Ticker: ARIS - Exchange: TSX - Region: Santander, Colombia - Primary commodity: Gold - Secondary commodities: Copper, Silver - Document categories: Resource update, Permitting - Extracted: 2026-09-30 12:23:15 UTC Narrative sentiment: 0.60 · Bullish ## Minestarters Atlas summary Aris Mining has completed the Environmental and Social Impact Assessment \(ESIA\) preparation for its Soto Norte gold-copper project in Colombia. The company also reported high-grade mineral reserves of 4.6 million ounces of gold at 7.0 g/t Au and noted the removal of key regulatory constraints following recent government actions. Reasoning: Significant de-risking of the Soto Norte project through ESIA completion and removal of previous regulatory restrictions, alongside high-grade reserve disclosure. - Positive factor: ESIA preparation complete - Positive factor: Regulatory constraints removed via revocation of La Baja reserve - Positive factor: Technical mine plan \(PTO\) approved by ANM - Positive factor: High-grade reserves \(7.0 g/t Au\) - Positive factor: Long mine life \(22 years\) - Negative factor: Environmental licensing still required before construction decision Facts used in scoring: 15 ## Classification and evidence **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., is named as the Qualified Person who reviewed and approved the technical information. Evidence · text > Pamela De Mark, P.Geo., ... is a Qualified Person **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: The technical information is reviewed and approved as per NI 43-101 standards. Evidence · text > as defined by National Instrument 43-101 ## Extracted facts Stored fact records: 15. Some facts used in scoring do not have a stored record. ## Resource Estimates (15) ### proven [Link to this fact](https://atlas-staging.minestarters.com/news/aris-mining-announces-major-developments-at-soto-norte--5b81e069-752c-4a23-8ea8-b366ab321e8e#fact-resource-facts-0) Soto Norte · gold #### Identity - Project: Soto Norte - Commodity: gold - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS #### 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:e5836172ed8379b60815 - Deposit or zone: Soto Norte - 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: High-grade proven reserve intercept. - Positive factor: High grade \(8.78 g/t Au\) 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--5b81e069-752c-4a23-8ea8-b366ab321e8e#fact-resource-facts-1) Soto Norte · silver #### Identity - Project: Soto Norte - Commodity: silver - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS #### 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:e5836172ed8379b60815 - Deposit or zone: Soto Norte - 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: Silver byproduct in proven reserve. 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--5b81e069-752c-4a23-8ea8-b366ab321e8e#fact-resource-facts-2) Soto Norte · copper #### Identity - Project: Soto Norte - Commodity: copper - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS #### 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:e5836172ed8379b60815 - Deposit or zone: Soto Norte - 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: Copper byproduct in proven reserve. 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--5b81e069-752c-4a23-8ea8-b366ab321e8e#fact-resource-facts-3) Soto Norte · gold #### Identity - Project: Soto Norte - Commodity: gold - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS #### 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:8ac2d28897b7bfe7b6b4 - Deposit or zone: Soto Norte - 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: High-grade probable reserve. - Positive factor: Strong grade \(6.72 g/t Au\) 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--5b81e069-752c-4a23-8ea8-b366ab321e8e#fact-resource-facts-4) Soto Norte · silver #### Identity - Project: Soto Norte - Commodity: silver - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS #### 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:8ac2d28897b7bfe7b6b4 - Deposit or zone: Soto Norte - 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: Silver byproduct in probable reserve. 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--5b81e069-752c-4a23-8ea8-b366ab321e8e#fact-resource-facts-5) Soto Norte · copper #### Identity - Project: Soto Norte - Commodity: copper - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS #### 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:8ac2d28897b7bfe7b6b4 - Deposit or zone: Soto Norte - 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: Copper byproduct in probable reserve. 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 ### measured [Link to this fact](https://atlas-staging.minestarters.com/news/aris-mining-announces-major-developments-at-soto-norte--5b81e069-752c-4a23-8ea8-b366ab321e8e#fact-resource-facts-6) Soto Norte · gold #### Identity - Project: Soto Norte - Commodity: gold - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS #### 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:10513276442e3961a2ae - Deposit or zone: Soto Norte - 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 #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: High-grade measured resource. - Positive factor: Very high grade \(7.99 g/t Au\) 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--5b81e069-752c-4a23-8ea8-b366ab321e8e#fact-resource-facts-7) Soto Norte · silver #### Identity - Project: Soto Norte - Commodity: silver - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS #### 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:10513276442e3961a2ae - Deposit or zone: Soto Norte - 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 #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: Silver byproduct in measured resource. 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--5b81e069-752c-4a23-8ea8-b366ab321e8e#fact-resource-facts-8) Soto Norte · copper #### Identity - Project: Soto Norte - Commodity: copper - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS #### 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:10513276442e3961a2ae - Deposit or zone: Soto Norte - 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 #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: Copper byproduct in measured resource. 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--5b81e069-752c-4a23-8ea8-b366ab321e8e#fact-resource-facts-9) Soto Norte · gold #### Identity - Project: Soto Norte - Commodity: gold - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS #### 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:861a975a825a17e80557 - Deposit or zone: Soto Norte - 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 #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: High-grade indicated resource. - Positive factor: Strong grade \(5.29 g/t Au\) 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--5b81e069-752c-4a23-8ea8-b366ab321e8e#fact-resource-facts-10) Soto Norte · silver #### Identity - Project: Soto Norte - Commodity: silver - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS #### 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:861a975a825a17e80557 - Deposit or zone: Soto Norte - 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 #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: Silver byproduct in indicated resource. 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--5b81e069-752c-4a23-8ea8-b366ab321e8e#fact-resource-facts-11) Soto Norte · copper #### Identity - Project: Soto Norte - Commodity: copper - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS #### 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:861a975a825a17e80557 - Deposit or zone: Soto Norte - 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 #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: Copper byproduct in indicated resource. 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 ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/aris-mining-announces-major-developments-at-soto-norte--5b81e069-752c-4a23-8ea8-b366ab321e8e#fact-resource-facts-12) Soto Norte · gold #### Identity - Project: Soto Norte - Commodity: gold - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS #### 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:d3fac8aabf563690617d - Deposit or zone: Soto Norte - 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 #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: Inferred gold resource. - Negative factor: Inferred category limits economic confidence 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--5b81e069-752c-4a23-8ea8-b366ab321e8e#fact-resource-facts-13) Soto Norte · silver #### Identity - Project: Soto Norte - Commodity: silver - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS #### 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:d3fac8aabf563690617d - Deposit or zone: Soto Norte - 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 #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: Silver byproduct in inferred resource. 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--5b81e069-752c-4a23-8ea8-b366ab321e8e#fact-resource-facts-14) Soto Norte · copper #### Identity - Project: Soto Norte - Commodity: copper - Region: colombia - Reported Region: Santander, Colombia - Ticker: ARIS #### 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:d3fac8aabf563690617d - Deposit or zone: Soto Norte - 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 #### Prior Estimate - Resource Date: 2025-08-18 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-30T00:00:00.000Z Reasoning: Copper byproduct in inferred resource. 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.