# Copper Mining News in Argentina

Canonical page: https://atlas-staging.minestarters.com/news?commodities=copper&regions=argentina

Atlas summarizes and classifies mining-industry stories from third-party publishers. Follow each source link for the original reporting.

Results: 68
Returned: 10
Coverage: drill results, resource updates, and metallurgy; primary commodity matching; all time unless dates are supplied.
Region: Argentina (argentina)
Commodity: Copper (copper)
Applied filters: {"regions":["argentina"],"commodities":["copper"],"commodity_scope":"primary","document_types":["drill_results","resource_update","metallurgy"],"document_type_match":"any"}
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## Aldebaran Resources Reports 1,728.9 m of 0.45% CuEq (0.41% Cu, 0.03 g/t Au & 1.34 g/t Ag), including 756 m of 0.68% CuEq (0.61% Cu, 0.03 g/t Au & 2.12 g/t Ag) at the Altar Copper-Gold Project in San Juan, Argentina

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/aldebaran-resources-reports-1-728-9-m-of-0-45-cueq-0-41-cu-0-03-g-t-au-1-34-g-t--68924b37-bb4c-411a-a5fa-361bc30de6bb) · [Markdown](https://atlas-staging.minestarters.com/news/aldebaran-resources-reports-1-728-9-m-of-0-45-cueq-0-41-cu-0-03-g-t-au-1-34-g-t--68924b37-bb4c-411a-a5fa-361bc30de6bb.md)
- Original announcement: 2026-10-05T21:49:22.000Z
- Atlas analysis published: 2026-10-05T12:31:27.365Z
- Atlas analysis updated: 2026-10-05T12:31:27.365Z
- Company: Aldebaran Resources Inc. (ALDE)
- Original source: [jmn](https://www.juniorminingnetwork.com/junior-miner-news/press-releases/2655-tsx-venture/alde/212270-aldebaran-reports-1-728-9-m-of-0-45-cueq-0-41-cu-0-03-g-t-au-1-34-g-t-ag-including-756-m-of-0-68-cueq-0-61-cu-0-03-g-t-au-2-12-g-t-ag-at-the-altar-copper-gold-project-in-san-juan-argentina.html)
- Atlas sentiment: 0.738
- Atlas tags: None

Aldebaran Resources reported significant drill results from its Altar Copper-Gold Project in San Juan, Argentina, including a notable 1,728.9-meter intercept grading 0.45% CuEq in hole ALD-26-260. The 2025-2026 infill and geotechnical drilling program aims to upgrade Inferred resources to higher-confidence categories and will incorporate over 40,000 meters of drilling at Altar and 30,000 meters at the new Radio Porphyry target into an upcoming 2026 mineral resource estimate. These results are expected to support a Pre-Feasibility Study scheduled for 2027.

## Aldebaran Resources posts drill results from Altar Copper-Gold Project, San Juan, Argentina

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/aldebaran-resources-posts-drill-results-from-altar-copper-gold-project-san-juan--4965b14d-0023-44a0-b2ec-d5001fe7b13d) · [Markdown](https://atlas-staging.minestarters.com/news/aldebaran-resources-posts-drill-results-from-altar-copper-gold-project-san-juan--4965b14d-0023-44a0-b2ec-d5001fe7b13d.md)
- Original announcement: 2026-10-05T13:41:55.000Z
- Atlas analysis published: 2026-10-06T20:19:32.087Z
- Atlas analysis updated: 2026-10-06T20:19:32.087Z
- Company: Aldebaran Resources Inc. (ALDE)
- Original source: [resourceworld](https://resourceworld.com/aldebaran-resources-posts-drill-results-from-altar-copper-gold-project-san-juan-argentina/)
- Atlas sentiment: 0.665
- Atlas tags: Infill Drilling, QA/QC Disclosed

Aldebaran Resources has released final drill results from its 2025-2026 infill and geotechnical program at the Altar Copper-Gold Project in Argentina. The results feature significant continuous copper-equivalent mineralization, including an interval exceeding 1.7 km in hole ALD-26-260, supporting an upcoming mineral resource update.

## Aldebaran Reports 1,728.9 m of 0.45% CuEq (0.41% Cu, 0.03 g/t Au & 1.34 g/t Ag), including 756 m of 0.68% CuEq (0.61% Cu, 0.03 g/t Au & 2.12 g/t Ag) at the Altar Copper-Gold Project in San Juan, Argentina

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/aldebaran-reports-1-728-9-m-of-0-45-cueq-0-41-cu-0-03-g-t-au-1-34-g-t-ag-includi--c6c5638d-fd4b-4ddb-a9eb-eb857b30cfe1) · [Markdown](https://atlas-staging.minestarters.com/news/aldebaran-reports-1-728-9-m-of-0-45-cueq-0-41-cu-0-03-g-t-au-1-34-g-t-ag-includi--c6c5638d-fd4b-4ddb-a9eb-eb857b30cfe1.md)
- Original announcement: 2026-10-05T11:00:00.000Z
- Atlas analysis published: 2026-10-05T11:12:09.093Z
- Atlas analysis updated: 2026-10-05T11:12:09.093Z
- Company: Aldebaran Resources Inc. (ALDE.V)
- Original source: [orestocks](https://orestocks.com/company/ALDE.V/press-releases/8705755514213229)
- Atlas sentiment: 0.727
- Atlas tags: True Width Disclosed, QA/QC Disclosed, Deleterious Elements Present, Infill Drilling, PFS-Supporting, Bonanza Intercept

Aldebaran Resources reported significant drill results from its Altar Copper-Gold Project in San Juan, Argentina, including a notable intercept of 1,728.9 meters at 0.45% CuEq, with a higher-grade section of 756 meters at 0.68% CuEq. These results are from an infill and geotechnical drilling program designed to upgrade inferred resources to higher confidence categories and support a pre-feasibility study. The company highlighted the immense scale of the Altar system and its potential for growth, with an updated mineral resource estimate and PFS planned for 2027.

## Glencore secures approval for MARA project in Argentina

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/glencore-secures-approval-for-mara-project-in-argentina--8592011a-c99c-449e-9ea5-f5e286c4251b) · [Markdown](https://atlas-staging.minestarters.com/news/glencore-secures-approval-for-mara-project-in-argentina--8592011a-c99c-449e-9ea5-f5e286c4251b.md)
- Original announcement: 2026-10-05T08:32:06.739Z
- Atlas analysis published: 2026-10-05T08:32:47.698Z
- Atlas analysis updated: 2026-10-13T04:03:22.980Z
- Company: Glencore
- Original source: [miningtechnology](https://www.mining-technology.com/news/glencore-approval-mara-project-argentina/)
- Atlas sentiment: 0.686
- Atlas tags: Resource Update

Glencore has obtained regulatory approval for its MARA project in Argentina under the Incentive Regime for Large Investments (RIGI). The project, centered on the Agua Rica deposit, features a large copper-gold-silver resource and aims to leverage existing Alumbrera infrastructure.

## Aldebaran Reports 1,728.9 m of 0.45% CuEq (0.41% Cu, 0.03 g/t Au & 1.34 g/t Ag), including 756 m of 0.68% CuEq (0.61% Cu, 0.03 g/t Au & 2.12 g/t Ag) at the Altar Copper-Gold Project in San Juan, Argentina

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/aldebaran-reports-1-728-9-m-of-0-45-cueq-0-41-cu-0-03-g-t-au-1-34-g-t-ag-includi--b8e1f753-179a-4e94-b5b9-d951c8dd7f29) · [Markdown](https://atlas-staging.minestarters.com/news/aldebaran-reports-1-728-9-m-of-0-45-cueq-0-41-cu-0-03-g-t-au-1-34-g-t-ag-includi--b8e1f753-179a-4e94-b5b9-d951c8dd7f29.md)
- Original announcement: 2026-10-05T00:00:00.000Z
- Atlas analysis published: 2026-10-06T11:57:52.315Z
- Atlas analysis updated: 2026-10-06T11:57:52.315Z
- Company: Aldebaran Resources Inc. (ALDE)
- Original source: [prospectors_exchange](https://aldebaranresources.com/aldebaran-reports-1728-9-m-of-0-45-cueq-0-41-cu-0-03-g-t-au-1-34-g-t-ag-including-756-m-of-0-68-cueq-0-61-cu-0-03-g-t-au-2-12-g-t-ag-at-the-altar-copper-gold-project-in-san-juan-a/)
- Atlas sentiment: 0.727
- Atlas tags: None

Aldebaran Resources reported significant drill results from its Altar Copper-Gold Project in San Juan, Argentina, including a 1,728.9-meter intercept grading 0.45% CuEq in hole ALD-26-260. The infill and geotechnical drilling program, aimed at upgrading resources and supporting a future Pre-Feasibility Study, confirmed long continuous intervals of copper mineralization. The company plans to incorporate over 70,000 meters of new drilling into an updated mineral resource estimate, which will include the Radio Porphyry target for the first time.

## Glencore gets RIGI nod for $4B Argentina copper project

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/glencore-gets-rigi-nod-for-4b-argentina-copper-project--9f4f7073-b9bf-4943-bdbe-46d1b1068a63) · [Markdown](https://atlas-staging.minestarters.com/news/glencore-gets-rigi-nod-for-4b-argentina-copper-project--9f4f7073-b9bf-4943-bdbe-46d1b1068a63.md)
- Original announcement: 2026-10-02T14:24:04.000Z
- Atlas analysis published: 2026-10-02T14:49:29.092Z
- Atlas analysis updated: 2026-10-02T14:49:29.092Z
- Company: Glencore (GLEN)
- Original source: [northernminer](https://www.northernminer.com/news/glencore-gets-rigi-nod-for-4b-argentina-copper-project/1003895400/)
- Atlas sentiment: 0.738
- Atlas tags: NI 43-101 Compliant

Glencore has secured Argentine government approval under the RIGI incentive program for its $4 billion Agua Rica copper project in Catamarca. The project, part of the MARA joint venture, aims to produce copper, gold, silver, and molybdenum using existing Alumbrera infrastructure, with first production expected in the second half of 2027.

## Glencore receives RIGI approval for Agua Rica (MARA)

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/glencore-receives-rigi-approval-for-agua-rica-mara--a0969afe-15d4-4f98-a414-ceaf1e3a1ff9) · [Markdown](https://atlas-staging.minestarters.com/news/glencore-receives-rigi-approval-for-agua-rica-mara--a0969afe-15d4-4f98-a414-ceaf1e3a1ff9.md)
- Original announcement: 2026-10-02T12:48:00.000Z
- Atlas analysis published: 2026-10-02T19:48:37.231Z
- Atlas analysis updated: 2026-10-02T19:48:37.231Z
- Company: Glencore plc (GLN)
- Original source: [jse](https://senspdf.jse.co.za/documents/SENS_20261002_S604212.pdf)
- Atlas sentiment: 0.493
- Atlas tags: Resource Update

Glencore has received approval for the Agua Rica (MARA) project under Argentina's Incentive Regime for Large Investments (RIGI). The project is a large-scale copper, gold, silver, and molybdenum deposit that will leverage the Alumbrera processing facilities.

## Glencore receives RIGI approval for Agua Rica

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/glencore-receives-rigi-approval-for-agua-rica--2ad352bc-0b67-4e2a-b3d6-7bfdcf8bed1b) · [Markdown](https://atlas-staging.minestarters.com/news/glencore-receives-rigi-approval-for-agua-rica--2ad352bc-0b67-4e2a-b3d6-7bfdcf8bed1b.md)
- Original announcement: 2026-10-02T11:40:27.000Z
- Atlas analysis published: 2026-10-02T15:47:53.401Z
- Atlas analysis updated: 2026-10-02T15:47:53.401Z
- Company: Glencore PLC (GLEN)
- Original source: [lse](https://www.londonstockexchange.com/news-article/GLEN/glencore-receives-rigi-approval-for-agua-rica/17818321)
- Atlas sentiment: 0.514
- Atlas tags: Maiden Resource

Glencore has received RIGI (Incentive Regime for Large Investments) approval for its Agua Rica project in Argentina, providing fiscal and regulatory certainty. The project is a large-scale copper, gold, silver, and molybdenum deposit with estimated measured and indicated resources of 1.2 billion tonnes.

## Sendero Resources Rebuilds Peñas Negras Drill Assay Database, Applying Consistent CuEq Methodology Across 77 Historical Holes

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/sendero-resources-rebuilds-pen-as-negras-drill-assay-database-applying-consisten--881ee854-8d75-4191-b1b5-bf635c4d166f) · [Markdown](https://atlas-staging.minestarters.com/news/sendero-resources-rebuilds-pen-as-negras-drill-assay-database-applying-consisten--881ee854-8d75-4191-b1b5-bf635c4d166f.md)
- Original announcement: 2026-09-23T11:46:10.766Z
- Atlas analysis published: 2026-09-23T11:51:48.559Z
- Atlas analysis updated: 2026-09-23T11:51:48.559Z
- Company: Sendero Resources Corp. (SEND)
- Original source: [thenewswire](https://www.thenewswire.com/press-releases/1LymF9yEy-sendero-resources-rebuilds-penas-negras-drill-assay-database-applying-consistent-cueq-methodology-across-77-historical-holes.html)
- Atlas sentiment: 0.577
- Atlas tags: None

Sendero Resources has re-evaluated 77 historical drill holes from its Peñas Negras copper-gold project in Argentina, applying a consistent copper equivalent (CuEq) methodology. This work provides a unified, project-wide view of mineralization, which begins near surface and extends to over 350 meters downhole. Notable intercepts include 44.2 meters at 1.23% CuEq in PNDH-06 and 43.6 meters at 1% CuEq in PND-02.

## Sendero Resources Rebuilds Peñas Negras Drill Assay Database, Applying Consistent CuEq Methodology Across 77 Historical Holes

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/sendero-resources-rebuilds-pe-xf1-as-negras-drill-assay-database-applying-consis--8da69549-1bbe-41bc-8870-d382138482af) · [Markdown](https://atlas-staging.minestarters.com/news/sendero-resources-rebuilds-pe-xf1-as-negras-drill-assay-database-applying-consis--8da69549-1bbe-41bc-8870-d382138482af.md)
- Original announcement: 2026-09-23T11:30:00.000Z
- Atlas analysis published: 2026-09-23T12:43:04.833Z
- Atlas analysis updated: 2026-09-23T12:43:04.833Z
- Company: Sendero Resources Corp. (SEND.V)
- Original source: [orestocks](https://orestocks.com/company/SEND.V/press-releases/6793509331145378)
- Atlas sentiment: 0.541
- Atlas tags: None

Sendero Resources Corp. has completed a re-evaluation of historical drill data from its Peñas Negras copper-gold project in La Rioja, Argentina, applying a consistent CuEq methodology across 77 holes. This analysis highlights significant copper-equivalent intercepts, including 44 metres grading 1.23% CuEq within 236 metres of 0.57% CuEq in hole PNDH-06, reinforcing the project's potential. The company plans a fully funded drill program based on these results, which show mineralization extending from near surface to over 350 metres depth.

# Atlas tag definitions

- **Bonanza Intercept:** Exceptionally high-grade zone, well above the deposit-type norm.
- **True Width Disclosed:** Actual thickness perpendicular to structure is stated, not just downhole length.
- **Step-Out Extension:** Mineralization extended beyond the previously known limit.
- **QA/QC Disclosed:** Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
- **Compositing Transparent:** Cut-off grade and internal dilution rules are clearly stated for reported intervals.
- **Refractory Ore:** Complex mineralogy requiring oxidation or other special processing before recovery.
- **Apparent Width Only:** Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
- **Stale Data Re-release:** Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
- **No QA/QC Disclosure:** Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
- **Metal Equivalent Opaque:** Metal equivalent grade reported without disclosing the price, recovery, or payability assumptions used.
- **Cut-off Undisclosed:** Cut-off grade not disclosed — cannot assess comparability to prior estimates or peers.
- **Deleterious Elements Present:** Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
- **Infill Drilling:** Confirmatory drilling to raise resource confidence, not new discovery.
- **Nearology Play:** Value premise rests on proximity to a known deposit rather than own results.
- **Measured Resource:** Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves.
- **Indicated Resource:** Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.
- **Proven Reserve:** Measured Resource with demonstrated economic viability after applying modifying factors.
- **Probable Reserve:** Indicated Resource with demonstrated economic viability after applying modifying factors.
- **Category Upgrade:** Resource confidence improved — Inferred upgraded to Indicated, or Indicated to Measured. De-risking signal.
- **Tonnage Growth:** Significant tonnage increase (≥15%) vs prior estimate with grade maintained or improved.
- **Grade Improvement:** Average resource grade improved vs prior estimate — better deposit economics.
- **Contained Metal Growth:** True scale improvement — contained metal ounces/tonnes increased vs prior, accounting for both tonnage and grade changes.
- **QP/CP Signed:** 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.
- **Cut-off Disclosed:** Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
- **JORC Compliant:** Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
- **NI 43-101 Compliant:** Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
- **Inferred Resource:** Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
- **All Inferred:** 100% of resource is Inferred category — very early stage, no engineering confidence.
- **Grade Decline:** Average grade dropped >5% vs prior estimate — deposit economics worsening. May indicate high-grading in early drilling.
- **Tonnage Decline:** Resource tonnage decreased vs prior estimate — pit optimization removed marginal material or geological model revised down.
- **Category Downgrade:** Resource confidence decreased — Measured downgraded to Indicated, or Indicated to Inferred. Unusual and concerning.
- **Contained Metal Decline:** Contained metal decreased vs prior despite tonnage growth — grade dilution exceeds volume gain.
- **Dilutive Growth:** Tonnage increased but contained metal flat or down — likely from lower cut-off grade, not geological expansion.
- **Cut-off Lowered:** Cut-off grade significantly reduced vs prior estimate — tonnage growth may be artificial inflation.
- **Cut-off Undisclosed:** Cut-off grade not disclosed — cannot assess comparability to prior estimates or peers.
- **Historical Estimate Only:** Estimate pre-dates or does not comply with current JORC/NI 43-101 standards — requires verification drilling.
- **Stale Estimate:** Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
- **No Contained Metal:** Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
- **No QP/CP Disclosure:** 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.
- **Maiden Resource:** First formal MRE for the project — establishes baseline but typically exploration-stage with high Inferred component.
- **Resource Update:** Revised estimate for an existing resource — compare to prior to assess progress.
- **PEA-Supporting:** Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
- **PFS-Supporting:** Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.
- **DFS-Supporting:** Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
- **High Recovery:** Recovery at or above the exceptional band for the commodity and processing route.
- **Pilot Scale Complete:** Pilot or demonstration plant testing completed under continuous operation.
- **Free Milling:** Simple, clean ore amenable to standard processing without oxidation.
- **Multi-Domain Tested:** Variability across ore domains (oxide, transition, fresh) has been addressed.
- **Recovery Improving:** Recovery improved versus a like-for-like prior test program on the same domain and route.
- **Low Recovery:** Recovery below the weak band for the commodity and processing route.
- **Bench Scale Only:** Only preliminary bench tests completed — no locked-cycle or pilot work.
- **Refractory Ore:** Complex mineralogy requiring oxidation or other special processing before recovery.
- **Single Domain Only:** Testing limited to one composite or domain — representativeness not established.
- **Recovery Stagnant:** No improvement across multiple test programs on comparable material.
- **Theoretical Recovery Only:** Only theoretical or liberation-derived recovery reported, with no actual test result.
- **Heap Leach Route:** Processing via heap leach — lower CAPEX and OPEX, lower recovery expected.
- **Mill Route:** Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
- **Gravity Route:** Gravity separation forms a material part of the flowsheet.
- **POX/BIOX Route:** Pressure or bio-oxidation for refractory ore — high CAPEX and OPEX.
- **Byproduct Commodity:** The tested commodity is a byproduct rather than the primary economic driver.