# Sendero Resources Reports Drilling Results at Pe&\#xF1;as Negras Project; Confirms Geological Model and Identifies Geochemical Vectors in Vicu&\#xF1;a Belt, Argentina Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/sendero-resources-reports-drilling-results-at-pe-xf1-as-negras-project-confirms--1ba20536-ac8b-4ce7-ac1b-b88861e71db7 Original source: https://money.tmx.com/en/quote/SEND/news/6719746161289797/sendero-resources-reports-drilling-results-at-pe-xf1-as-negras-project-confirms- Publisher: tmx Original announcement: 2026-08-17T11:30:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Sendero Resources Corp. - Ticker: SEND - Exchange: TSX - Region: La Rioja, Argentina - Primary commodity: Gold - Secondary commodities: Silver - Document categories: Drill results - Extracted: 2026-08-22 10:24:00 UTC Narrative sentiment: 0.60 · Bullish ## Minestarters Atlas summary Sendero Resources has confirmed its porphyry-epithermal geological model at the Peñas Negras Project through reconnaissance diamond drilling and rock sampling. The program identified gold and silver mineralization, a significant leached cap, and geochemical vectors consistent with high-sulfidation epithermal systems. Reasoning: Reconnaissance drilling confirmed the porphyry-epithermal model with gold and silver intercepts and identified key geochemical vectors \(Sb, As, Cu, Mo, Pb, Zn\) and a leached cap. - Positive factor: Confirmation of geological model - Positive factor: Presence of geochemical vectors - Positive factor: Discovery of leached cap - Positive factor: Strong surface geochemistry - Negative factor: True widths unknown Facts used in scoring: 4 ## Classification and evidence **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: Release details SGS lab, ISO/IEC 17025 accreditation, and use of standards, blanks, and duplicates. Evidence · text > The SGS testing laboratory in Callao, Peru, holds ISO/IEC 17025 accreditation **Apparent Width Only** Polarity: negative Definition: Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness. Why it applies: The document explicitly states that true widths are unknown at this stage. Evidence · text > True widths are unknown at this stage. ## Extracted facts Stored fact records: 4. Some facts used in scoring do not have a stored record. ## Drill Results (4) ### PNDH-201 [Link to this fact](https://atlas-staging.minestarters.com/news/sendero-resources-reports-drilling-results-at-pe-xf1-as-negras-project-confirms--1ba20536-ac8b-4ce7-ac1b-b88861e71db7#fact-drill-facts-0) Peñas Negras Project · gold #### Identity - Hole ID: PNDH-201 - Project: Peñas Negras Project - Commodity: gold - Region: argentina - Reported Region: La Rioja, Argentina - Ticker: SEND #### Geometry - Grade: 1.04 - Grade Unit: g/t - Intercept: 1.5 m - From: 14 m - To: 15.5 m #### Classification - Program: exploration - Sample Type: drill - Group ID: PNDH-201:14.0-15.5 - Mining Method: unknown #### Location - Loc. Confidence: high #### QA/QC - Laboratory: SGS - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-17T00:00:00.000Z Reasoning: 1.04 g/t Au over 1.5m is a solid reconnaissance intercept for an epithermal target. - Positive factor: Confirmed mineralization - Negative factor: Apparent width only Evidence · text > PNDH-201 returning 1.04 g/t Au over 1.5 m from 14.0 m ### PNDH-201 [Link to this fact](https://atlas-staging.minestarters.com/news/sendero-resources-reports-drilling-results-at-pe-xf1-as-negras-project-confirms--1ba20536-ac8b-4ce7-ac1b-b88861e71db7#fact-drill-facts-1) Peñas Negras Project · silver #### Identity - Hole ID: PNDH-201 - Project: Peñas Negras Project - Commodity: silver - Region: argentina - Reported Region: La Rioja, Argentina - Ticker: SEND #### Geometry - Grade: 48 - Grade Unit: g/t - Intercept: 1.5 m - From: 14 m - To: 15.5 m #### Classification - Program: exploration - Sample Type: drill - Group ID: PNDH-201:14.0-15.5 - Mining Method: unknown #### Location - Loc. Confidence: high #### QA/QC - Laboratory: SGS - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-17T00:00:00.000Z Reasoning: 48 g/t Ag over 1.5m is a strong silver intercept for this stage. - Positive factor: Strong silver anomaly - Negative factor: Apparent width only Evidence · text > 48 g/t Ag over 1.5 m from 14.0 m ### PNDH-201 [Link to this fact](https://atlas-staging.minestarters.com/news/sendero-resources-reports-drilling-results-at-pe-xf1-as-negras-project-confirms--1ba20536-ac8b-4ce7-ac1b-b88861e71db7#fact-drill-facts-2) Peñas Negras Project · silver #### Identity - Hole ID: PNDH-201 - Project: Peñas Negras Project - Commodity: silver - Region: argentina - Reported Region: La Rioja, Argentina - Ticker: SEND #### Geometry - Grade: 28.2 - Grade Unit: g/t - Intercept: 1 m - From: 57 m - To: 58 m #### Classification - Program: exploration - Sample Type: drill - Group ID: PNDH-201:57.0-58.0 - Mining Method: unknown #### Location - Loc. Confidence: high #### QA/QC - Laboratory: SGS - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-17T00:00:00.000Z Reasoning: 28.2 g/t Ag over 1.0m is a notable silver intercept. - Positive factor: Silver anomaly - Negative factor: Apparent width only Evidence · text > 28.2 g/t Ag over 1.0 m from 57.0 m in PNDH-201 ### PNDH-203 [Link to this fact](https://atlas-staging.minestarters.com/news/sendero-resources-reports-drilling-results-at-pe-xf1-as-negras-project-confirms--1ba20536-ac8b-4ce7-ac1b-b88861e71db7#fact-drill-facts-3) Peñas Negras Project · antimony #### Identity - Hole ID: PNDH-203 - Project: Peñas Negras Project - Commodity: antimony - Region: argentina - Reported Region: La Rioja, Argentina - Ticker: SEND #### Classification - Program: exploration - Sample Type: drill - Mining Method: unknown #### Location - Loc. Confidence: high #### QA/QC - Laboratory: SGS - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-17T00:00:00.000Z Reasoning: Antimony anomaly supports the high-sulfidation epithermal thesis. - Positive factor: Geochemical vector Evidence · text > The hole also returned anomalous antimony values ## 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.