# Tintina Mines Announces Commencement of Drilling at the Dos Amigos Project in Chile Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/tintina-mines-announces-commencement-of-drilling-at-the-dos-amigos-project-in-ch--ef017b4a-a861-495f-aa7d-2a8cfed23312 Original source: https://www.accessnewswire.com/newsroom/en/metals-and-mining/tintina-mines-announces-commencement-of-drilling-at-the-dos-amigos-project-in-chi-1225169 Publisher: accesswire Original announcement: 2026-09-22T11:46:31.235Z Analysis by Minestarters Atlas Atlas analysis published: 2026-09-22T11:51:08.588Z Atlas analysis updated: 2026-09-22T11:51:08.588Z - Company: Tintina Mines Limited - Ticker: TTS - Exchange: Unavailable - Region: Atacama Region, Chile - Primary commodity: Copper - Secondary commodities: Gold - Document categories: Drill results, Resource update - Extracted: 2026-09-22 11:51:09 UTC Narrative sentiment: 0.40 · Bullish ## Minestarters Atlas summary Tintina Mines has commenced a 40,000-metre diamond drilling program at the Dos Amigos project in Chile to convert Inferred resources to the Indicated category for a planned feasibility study. The company also reported its current Mineral Resource Estimate and restated historical 2018 drilling results from the Tricolor target. Reasoning: The announcement of a major 40,000m infill program to upgrade resources for a feasibility study is highly material, though the specific drill results provided are historical restatements. - Positive factor: Commencement of large 40,000m infill drilling program - Positive factor: Significant existing resource base \(357 Mt total\) - Positive factor: Clear path to feasibility study via resource conversion - Negative factor: Historical drill results at Tricolor are being re-released \(low novelty\) - Negative factor: Tricolor intercept lacks true width disclosure Facts used in scoring: 4 ## Classification and evidence **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: The company announced a 40,000-metre infill drilling program to support resource conversion. Evidence · text > 40,000-metre infill drilling program underway **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 Tricolor intercept \(SDDK 18-035\) is reported as downhole width with no true width or orientation stated. Evidence · text > The current orientation of mineralization is unknown therefore the intercept may not reflect true widths. **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: The release details specific QA/QC methods including standards, blanks, and duplicates. Evidence · text > The Company employed a rigorous QAQC program involving certified standards, blank, ¼ core duplicates and coarse reject duplicates. **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 Resource Estimate is prepared in accordance with NI 43-101 standards. Evidence · text > The Mineral resource estimates disclosed in this news release were reported... in accordance with NI 43-101. ## Extracted facts Stored fact records: 4. Some facts used in scoring do not have a stored record. ## Drill Results (2) ### SDDK 18-035 [Link to this fact](https://atlas-staging.minestarters.com/news/tintina-mines-announces-commencement-of-drilling-at-the-dos-amigos-project-in-ch--ef017b4a-a861-495f-aa7d-2a8cfed23312#fact-drill-facts-0) Tricolor · copper Historical result Needs review: historical\_restatement #### Identity - Hole ID: SDDK 18-035 - Project: Tricolor - Commodity: copper - Region: chile - Reported Region: chile - Ticker: TTS #### Geometry - Grade: 0.56 - Grade Unit: % - Intercept: 232 m - From: 18 m - To: 250 m - Intercept Depth: 18 m #### Classification - Sample Type: drill - Group ID: SDDK 18-035:18-250 #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, blanks, duplicates #### Compositing - Dilution Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes - Historical Source Date: 2018-01-01T00:00:00.000Z #### Dates - Event date: 2026-09-22T00:00:00.000Z Reasoning: 0.56% Cu over 232m is a solid intercept but is historical and lacks true width. - Positive factor: Moderate copper grade over a significant width - Negative factor: Historical data re-release - Negative factor: Apparent width only Evidence · table > 0.56 Context: 250.0 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release ### SDDK 18-035 [Link to this fact](https://atlas-staging.minestarters.com/news/tintina-mines-announces-commencement-of-drilling-at-the-dos-amigos-project-in-ch--ef017b4a-a861-495f-aa7d-2a8cfed23312#fact-drill-facts-1) Tricolor · gold Historical result Needs review: historical\_restatement #### Identity - Hole ID: SDDK 18-035 - Project: Tricolor - Commodity: gold - Region: chile - Reported Region: chile - Ticker: TTS #### Geometry - Grade: 0.33 - Grade Unit: g/t - Intercept: 232 m - From: 18 m - To: 250 m - Intercept Depth: 18 m #### Classification - Sample Type: drill - Group ID: SDDK 18-035:18-250 #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, blanks, duplicates #### Compositing - Dilution Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes - Historical Source Date: 2018-01-01T00:00:00.000Z #### Dates - Event date: 2026-09-22T00:00:00.000Z Reasoning: Low grade gold intercept from historical drilling. - Negative factor: Historical data re-release Evidence · table > 0.33 Context: 250.0 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release ## Resource Estimates (2) ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/tintina-mines-announces-commencement-of-drilling-at-the-dos-amigos-project-in-ch--ef017b4a-a861-495f-aa7d-2a8cfed23312#fact-resource-facts-2) Dos Amigos · copper #### Identity - Project: Dos Amigos - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: TTS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Resource group id: resource:bff2a89050d76bfabbc1 - Deposit or zone: Dos Amigos #### Resource Data - Category: inferred - Tonnes: 256300000 - Grade: 0.34 - Grade Unit: % - Cutoff Grade: 0.2 - Cutoff Unit: % total copper #### Prior Estimate - Resource Date: 2026-01-23 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-22T00:00:00.000Z Reasoning: Large Inferred resource provides significant upside for the infill program. - Positive factor: Large Inferred tonnage - Negative factor: High Inferred component Evidence · text > 256.3 Mt at 0.34% copper #### 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 **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/tintina-mines-announces-commencement-of-drilling-at-the-dos-amigos-project-in-ch--ef017b4a-a861-495f-aa7d-2a8cfed23312#fact-resource-facts-3) Dos Amigos · gold #### Identity - Project: Dos Amigos - Commodity: gold - Region: chile - Reported Region: Atacama Region, Chile - Ticker: TTS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Resource group id: resource:bff2a89050d76bfabbc1 - Deposit or zone: Dos Amigos #### Resource Data - Category: inferred - Tonnes: 256300000 - Grade: 0.24 - Grade Unit: g/t - Cutoff Grade: 0.2 - Cutoff Unit: % total copper #### Prior Estimate - Resource Date: 2026-01-23 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-22T00:00:00.000Z Reasoning: Gold component of the Inferred resource. Evidence · text > 0.24 g/t gold #### 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 **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported ## 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.