# Copper Mining News in Colombia

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

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

Results: 53
Returned: 10
Coverage: drill results, resource updates, and metallurgy; primary commodity matching; all time unless dates are supplied.
Region: Colombia (colombia)
Commodity: Copper (copper)
Applied filters: {"regions":["colombia"],"commodities":["copper"],"commodity_scope":"primary","document_types":["drill_results","resource_update","metallurgy"],"document_type_match":"any"}
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## Quimbaya Gold Defines a Copper-Molybdenum Porphyry System at Tahami Center

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/quimbaya-gold-defines-a-copper-molybdenum-porphyry-system-at-tahami-center--5ea22deb-a972-4495-927e-7c0d4c73b0b6) · [Markdown](https://atlas-staging.minestarters.com/news/quimbaya-gold-defines-a-copper-molybdenum-porphyry-system-at-tahami-center--5ea22deb-a972-4495-927e-7c0d4c73b0b6.md)
- Original announcement: 2026-10-19T14:35:09.000Z
- Atlas analysis published: 2026-10-19T15:51:57.831Z
- Atlas analysis updated: 2026-10-19T15:51:57.831Z
- Company: Quimbaya Gold Inc. (QIM)
- Original source: [cse](https://webfiles-primary.thecse.com/news_releases/neutral/3960/084cbc47-f637-4fbf-931c-a58556e69c05)
- Atlas sentiment: -0.218
- Atlas tags: Apparent Width Only, QA/QC Disclosed, Porphyry, Sub-economic grades, Large System, Exploration Drilling

Quimbaya Gold has defined a large copper-molybdenum porphyry system at Tahami Center through its initial six drill holes, totaling 2,928 meters. While all holes intersected continuous mineralization and typical porphyry alteration, the grades are consistently sub-economic. The company will pause drilling at Tahami Center to model the data and identify vectors to higher-grade zones, while continuing exploration at Tahami South.

## Quimbaya Gold Defines a Copper-Molybdenum Porphyry System at Tahami Center

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/quimbaya-gold-defines-a-copper-molybdenum-porphyry-system-at-tahami-center--e457adcb-1f01-455b-a2a8-0942f5291357) · [Markdown](https://atlas-staging.minestarters.com/news/quimbaya-gold-defines-a-copper-molybdenum-porphyry-system-at-tahami-center--e457adcb-1f01-455b-a2a8-0942f5291357.md)
- Original announcement: 2026-10-16T21:00:00.000Z
- Atlas analysis published: 2026-10-16T21:08:10.022Z
- Atlas analysis updated: 2026-10-16T21:08:10.022Z
- Company: Quimbaya Gold Inc. (QIM.CN)
- Original source: [orestocks](https://orestocks.com/company/QIM.CN/press-releases/8498061971717490)
- Atlas sentiment: -0.341
- Atlas tags: None

Quimbaya Gold reported initial assay results from six drill holes at its Tahami Center project in Colombia, confirming a large copper-molybdenum porphyry system. While the drilling defined the system's architecture and alteration, the copper grades encountered were explicitly sub-economic and low, leading to a pause in the drill program at this target. The company plans to model the data to identify vectors towards potentially higher-grade zones and continue exploration at other targets.

## Quimbaya Gold Defines a Copper-Molybdenum Porphyry System at Tahami Center

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/quimbaya-gold-defines-a-copper-molybdenum-porphyry-system-at-tahami-center--817319ec-dddc-4be1-8bfb-0a52231480d8) · [Markdown](https://atlas-staging.minestarters.com/news/quimbaya-gold-defines-a-copper-molybdenum-porphyry-system-at-tahami-center--817319ec-dddc-4be1-8bfb-0a52231480d8.md)
- Original announcement: 2026-10-16T00:00:00.000Z
- Atlas analysis published: 2026-10-17T13:50:31.558Z
- Atlas analysis updated: 2026-10-17T13:50:31.558Z
- Company: Quimbaya Gold Inc. (QIM)
- Original source: [prospectors_exchange](https://quimbayagold.com/2026/10/16/quimbaya-gold-defines-a-copper-molybdenum-porphyry-system-at-tahami-center/)
- Atlas sentiment: -0.165
- Atlas tags: Apparent Width Only, QA/QC Disclosed, Compositing Transparent, Exploration Stage, Sub-economic Grades, Porphyry System Confirmed

Quimbaya Gold announced assay results from the first six holes of its drill program at Tahami Center, confirming the presence of a large copper-molybdenum porphyry system with continuous mineralization. While all holes intersected the system, the grades reported are geochemically anomalous but sub-economic. The company plans to pause drilling at Tahami Center to model the data and identify vectors to higher-grade zones, while continuing drilling at Tahami South.

## Copper Giant Resources Expands Mocoa to 1.6 Billion Tonnes Inferred and Upgrades 290 Million Tonnes to Indicated

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/copper-giant-resources-expands-mocoa-to-1-6-billion-tonnes-inferred-and-upgrades--6d6526c0-3950-4c50-954f-ef113fb9fb2b) · [Markdown](https://atlas-staging.minestarters.com/news/copper-giant-resources-expands-mocoa-to-1-6-billion-tonnes-inferred-and-upgrades--6d6526c0-3950-4c50-954f-ef113fb9fb2b.md)
- Original announcement: 2026-10-14T22:12:00.000Z
- Atlas analysis published: 2026-10-14T12:27:36.866Z
- Atlas analysis updated: 2026-10-14T12:27:36.866Z
- Company: Copper Giant Resources Corp. (CGNT)
- Original source: [jmn](https://www.juniorminingnetwork.com/junior-miner-news/press-releases/2126-tsx-venture/cgnt/212856-copper-giant-expands-mocoa-to-1-6-billion-tonnes-inferred-and-upgrades-290-million-tonnes-to-indicated.html)
- Atlas sentiment: 0.748
- Atlas tags: None

Copper Giant Resources has announced a significant update to the Mineral Resource Estimate for its Mocoa copper-molybdenum porphyry project in Colombia. The update introduces a maiden Indicated Mineral Resource of 290 million tonnes and expands the Inferred Mineral Resource to 1.6 billion tonnes. This results in an approximate 50% increase in total contained copper since the previous estimate in November 2025, with the estimate prepared under NI 43-101 by independent Qualified Persons.

## Copper Giant eyes PEA in Colombia after new mineral resource estimate

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/copper-giant-eyes-pea-in-colombia-after-new-mineral-resource-estimate--654e7bfb-6ea3-43bd-9570-183b0c7144ca) · [Markdown](https://atlas-staging.minestarters.com/news/copper-giant-eyes-pea-in-colombia-after-new-mineral-resource-estimate--654e7bfb-6ea3-43bd-9570-183b0c7144ca.md)
- Original announcement: 2026-10-14T12:31:27.000Z
- Atlas analysis published: 2026-10-14T16:17:45.064Z
- Atlas analysis updated: 2026-10-14T16:17:45.064Z
- Company: Copper Giant Resources Corp. (CGNT)
- Original source: [resourceworld](https://resourceworld.com/copper-giant-eyes-pea-in-colombia-after-new-mineral-resource-estimate/)
- Atlas sentiment: 0.706
- Atlas tags: Category Upgrade, Tonnage Growth, Contained Metal Growth

Copper Giant Resources Corp. has released an updated mineral resource estimate for its Mocoa copper-molybdenum project in Colombia. The update introduces indicated resources for the first time and expands the total inferred resource to 1.60 billion tonnes, representing a 50% increase in contained copper compared to the previous November 2025 estimate.

## Copper Giant Expands Mocoa to 1.6 Billion Tonnes Inferred and Upgrades 290 Million Tonnes to Indicated

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/copper-giant-expands-mocoa-to-1-6-billion-tonnes-inferred-and-upgrades-290-milli--e5ae5d8c-a928-496c-b4dd-e318d9f9e5c7) · [Markdown](https://atlas-staging.minestarters.com/news/copper-giant-expands-mocoa-to-1-6-billion-tonnes-inferred-and-upgrades-290-milli--e5ae5d8c-a928-496c-b4dd-e318d9f9e5c7.md)
- Original announcement: 2026-10-14T11:31:33.211Z
- Atlas analysis published: 2026-10-14T11:55:53.562Z
- Atlas analysis updated: 2026-10-14T11:55:53.562Z
- Company: Copper Giant Resources Corp. (CGNT)
- Original source: [cnw](https://www.newswire.ca/news-releases/copper-giant-expands-mocoa-to-1-6-billion-tonnes-inferred-and-upgrades-290-million-tonnes-to-indicated-837695640.html)
- Atlas sentiment: 0.748
- Atlas tags: Category Upgrade, Tonnage Growth, Contained Metal Growth, QP/CP Signed, NI 43-101 Compliant, PEA-Supporting, Maiden Resource, Resource Update, Inferred Resource, Grade Decline, Dilutive Growth, Cut-off Lowered

Copper Giant Resources Corp. announced an updated Mineral Resource Estimate for its Mocoa copper-molybdenum porphyry project, establishing a maiden Indicated Mineral Resource of 290 million tonnes and expanding the Inferred Mineral Resource to 1.6 billion tonnes. This update, compliant with NI 43-101, increases total contained copper by approximately 50% since November 2025 and will form the basis for a Preliminary Economic Assessment to be filed in Q4 2026. The estimate includes a first-time reporting of resources below the conceptual pit shell, adding 120 million tonnes of Inferred resources.

## Copper Giant Expands Mocoa to 1.6 Billion Tonnes Inferred and Upgrades 290 Million Tonnes to Indicated

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/copper-giant-expands-mocoa-to-1-6-billion-tonnes-inferred-and-upgrades-290-milli--93314e84-c9a8-49a6-b206-3b197318b390) · [Markdown](https://atlas-staging.minestarters.com/news/copper-giant-expands-mocoa-to-1-6-billion-tonnes-inferred-and-upgrades-290-milli--93314e84-c9a8-49a6-b206-3b197318b390.md)
- Original announcement: 2026-10-14T11:30:00.000Z
- Atlas analysis published: 2026-10-14T13:49:54.107Z
- Atlas analysis updated: 2026-10-14T13:49:54.107Z
- Company: Copper Giant Resources Corp. (CGNT.V)
- Original source: [orestocks](https://orestocks.com/company/CGNT.V/press-releases/8110513582153416)
- Atlas sentiment: 0.748
- Atlas tags: Indicated Resource, Category Upgrade, Tonnage Growth, Contained Metal Growth, QP/CP Signed, NI 43-101 Compliant, Cut-off Disclosed, PEA-Supporting, Inferred Resource, Grade Decline, Dilutive Growth, Resource Update

Copper Giant Resources Corp. announced an updated Mineral Resource Estimate for its Mocoa copper-molybdenum porphyry project in Colombia, effective September 24, 2026. The update includes Mocoa's first Indicated Mineral Resource of 290 million tonnes at 0.54% CuEq, containing 2.13 billion pounds of copper, and expands the Inferred Mineral Resource to 1.60 billion tonnes at 0.40% CuEq, containing 9.36 billion pounds of copper. Total contained copper has increased by approximately 50% since November 2025, and the estimate will support a Preliminary Economic Assessment to be filed in Q4 2026.

## Andina Copper Intersects High-Grade, Near-Surface Copper in Step-Out Hole

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/andina-copper-intersects-high-grade-near-surface-copper-in-step-out-hole--da482b72-e261-4f2a-adf9-381eebe724de) · [Markdown](https://atlas-staging.minestarters.com/news/andina-copper-intersects-high-grade-near-surface-copper-in-step-out-hole--da482b72-e261-4f2a-adf9-381eebe724de.md)
- Original announcement: 2026-09-23T11:00:00.000Z
- Atlas analysis published: 2026-09-23T11:52:41.102Z
- Atlas analysis updated: 2026-09-23T11:52:41.102Z
- Company: Andina Copper Corporation (ANDC.CN)
- Original source: [orestocks](https://orestocks.com/company/ANDC.CN/press-releases/5310192813590921)
- Atlas sentiment: 0.514
- Atlas tags: Step-Out Extension, QA/QC Disclosed, Apparent Width Only

Andina Copper reported significant step-out drilling results at the Cobrasco porphyry copper-molybdenum project in Colombia. Drillhole CDH013 intersected 322m at 0.51% Cu, extending the mineralized footprint to the northwest.

## Andina Copper Intersects High-Grade, Near-Surface Copper in Step-Out Hole>

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/andina-copper-intersects-high-grade-near-surface-copper-in-step-out-hole--130e6c38-cd84-4acc-8d3a-a004147d9c24) · [Markdown](https://atlas-staging.minestarters.com/news/andina-copper-intersects-high-grade-near-surface-copper-in-step-out-hole--130e6c38-cd84-4acc-8d3a-a004147d9c24.md)
- Original announcement: 2026-09-23T00:00:00.000Z
- Atlas analysis published: 2026-09-23T11:57:10.962Z
- Atlas analysis updated: 2026-09-23T11:57:10.962Z
- Company: Andina Copper Corporation (ANDC)
- Original source: [prospectors_exchange](https://andinacopper.com/news/news-2026/andina-copper-intersects-high-grade-near-surface-copper-in-2026-09-23-040004)
- Atlas sentiment: 0.514
- Atlas tags: Step-Out Extension, QA/QC Disclosed, Apparent Width Only

Andina Copper reported significant step-out drilling results at the Cobrasco porphyry copper-molybdenum project in Colombia. Drillhole CDH013 intersected 322m at 0.51% Cu, extending the mineralized footprint to the northwest and confirming high-grade near-surface mineralization.

## Copper Giant Intersects 103 Metres of 1.07% CuEq* (0.57% Cu and 0.095% Mo) Within 804 Metres of 0.56% CuEq* at Mocoa

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/copper-giant-intersects-103-metres-of-1-07-cueq-0-57-cu-and-0-095-mo-within-804--a5ab71e4-2341-49e6-9701-df8845bd8abf) · [Markdown](https://atlas-staging.minestarters.com/news/copper-giant-intersects-103-metres-of-1-07-cueq-0-57-cu-and-0-095-mo-within-804--a5ab71e4-2341-49e6-9701-df8845bd8abf.md)
- Original announcement: 2026-09-22T11:30:00.000Z
- Atlas analysis published: 2026-09-22T12:14:25.136Z
- Atlas analysis updated: 2026-09-22T12:14:25.136Z
- Company: Copper Giant Resources Corp. (CGNT.V)
- Original source: [orestocks](https://orestocks.com/company/CGNT.V/press-releases/7719516652868658)
- Atlas sentiment: 0.818
- Atlas tags: Bonanza Intercept, True Width Disclosed, QA/QC Disclosed, Compositing Transparent, Metal Equivalent Opaque, Infill Drilling, Step-Out Extension, Stale Data Re-release

Copper Giant Resources announced strong infill drill results from its Mocoa copper-molybdenum porphyry project, highlighted by 804 metres of 0.56% CuEq, including a high-grade core of 103 metres at 1.07% CuEq, which is more than twice the current resource average. These results confirm and locally exceed the existing resource model, providing confidence for the upcoming Preliminary Economic Assessment. The company also noted mineralization extending to the bottom of several holes and the deployment of a fourth drill rig to test new targets on the western flank.

# 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.