# ATEX Reports Updated Mineral Resource Estimate of 475 Million Tonnes of 0.88% CuEq Indicated and 1.5 Billion Tonnes of 0.75% CuEq Inferred Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/atex-reports-updated-mineral-resource-estimate-of-475-million-tonnes-of-0-88-cue--39a1415e-293f-49a6-a939-2562e9d1459a Original source: https://finance.yahoo.com/news/atex-reports-updated-mineral-estimate-110000759.html Publisher: yahoo\_press Original announcement: 2025-09-23T11:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: ATEX Resources Inc. - Ticker: ATX - Exchange: TSXV - Region: Atacama Region, Chile - Primary commodity: Copper - Secondary commodities: None reported - Document categories: Resource update - Extracted: 2026-09-21 12:51:21 UTC Narrative sentiment: 0.40 · Bullish ## Minestarters Atlas summary ATEX Resources Inc. has announced an updated Mineral Resource Estimate for its Valeriano Project in Chile. The update includes 475 million tonnes of Indicated resource at 0.88% CuEq and a much larger Inferred resource of 1.5 billion tonnes at 0.75% CuEq. Reasoning: The announcement reports a substantial updated mineral resource estimate for the Valeriano Project, though it is heavily weighted towards the Inferred category. - Positive factor: Significant resource scale - Positive factor: Compliance with NI 43-101 standards Facts used in scoring: 2 ## 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 MRE was prepared in accordance with National Instrument 43-101 Standards of Disclosure. Evidence · text > prepared in accordance with the Canadian Institute of Mining, Metallurgy and Petroleum \("CIM"\) guidelines and National Instrument 43-101 Standards of Disclosure **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: A large portion of the reported resource \(1.5 billion tonnes\) is in the Inferred category. Evidence · text > 1.5 Billion Tonnes of 0.75% CuEq Inferred ## Extracted facts Stored fact records: 2. Some facts used in scoring do not have a stored record. ## Resource Estimates (2) ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/atex-reports-updated-mineral-resource-estimate-of-475-million-tonnes-of-0-88-cue--39a1415e-293f-49a6-a939-2562e9d1459a#fact-resource-facts-0) Valeriano Project · copper #### Identity - Project: Valeriano Project - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: ATX #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - Resource group id: resource:9797921d180b12607b3c #### Resource Data - Category: indicated - Tonnes: 475000000 #### Metal Equivalent - Metal Eq. Grade: 0.88 - Metal Eq. Unit: % CuEq #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-09-23T00:00:00.000Z Reasoning: Indicated resource of 475Mt at 0.88% CuEq is a material update. - Positive factor: Significant tonnage Evidence · text > 475 Million Tonnes of 0.88% CuEq Indicated #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **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 **No QP/CP Disclosure** Polarity: negative Definition: No Qualified Person or Competent Person named — lower credibility for the estimate. A QP/CP should be a member of a recognized professional association with relevant experience. Why it applies: no Qualified or Competent Person is named anywhere in the release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/atex-reports-updated-mineral-resource-estimate-of-475-million-tonnes-of-0-88-cue--39a1415e-293f-49a6-a939-2562e9d1459a#fact-resource-facts-1) Valeriano Project · copper #### Identity - Project: Valeriano Project - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: ATX #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - Resource group id: resource:fb5762486d349dcd692b #### Resource Data - Category: inferred - Tonnes: 1500000000 #### Metal Equivalent - Metal Eq. Grade: 0.75 - Metal Eq. Unit: % CuEq #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-09-23T00:00:00.000Z Reasoning: Large scale inferred resource provides significant exploration upside but lacks geological confidence. - Positive factor: Massive scale - Negative factor: Low geological confidence \(Inferred\) Evidence · text > 1.5 Billion Tonnes of 0.75% CuEq Inferred #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **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 **No QP/CP Disclosure** Polarity: negative Definition: No Qualified Person or Competent Person named — lower credibility for the estimate. A QP/CP should be a member of a recognized professional association with relevant experience. Why it applies: no Qualified or Competent Person is named anywhere in the release ## How Atlas produces this analysis Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.