# Mining News in Chile

Canonical page: https://atlas-extractions.minestarters.com/news?regions=chile

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

Results: 194
Returned: 10
Coverage: drill results, resource updates, and metallurgy; primary commodity matching; all time unless dates are supplied.
Region: Chile (chile)
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## Grafton Resources Enters Into Exclusive Option Agreement to Acquire 100% of the Poseidon Gold-Silver-Copper and Jabali Gold Projects in Chile from Newmont

- Atlas analysis: [Read analysis](https://atlas-extractions.minestarters.com/news/grafton-resources-enters-into-exclusive-option-agreement-to-acquire-100-of-the-p--a2b3f555-2c5c-4652-af25-3235e4e526c9) · [Markdown](https://atlas-extractions.minestarters.com/news/grafton-resources-enters-into-exclusive-option-agreement-to-acquire-100-of-the-p--a2b3f555-2c5c-4652-af25-3235e4e526c9.md)
- Original announcement: 2026-09-24T11:00:00.000Z
- Atlas analysis published: Unknown date
- Atlas analysis updated: Unknown date
- Company: Grafton Resources Inc. (GFT.CN)
- Original source: [orestocks](https://orestocks.com/company/GFT.CN/press-releases/8340823058369864)
- Atlas sentiment: 0.632
- Atlas tags: None

Grafton Resources has secured an exclusive option to acquire 100% of the Poseidon Gold-Silver-Copper and Jabali Gold Projects in Chile from Newmont. The Poseidon project, contiguous with Grafton's existing Alicahue project, shows historical polymetallic drill intercepts including 5.4m at 1.4 g/t Au, 20 g/t Ag, 0.56% Cu, 0.14% Pb, and 0.66% Zn. The Jabali project is an undrilled, large-scale high-sulfidation gold target. The acquisition involves cash and share considerations, plus milestone payments and NSR royalties, significantly expanding Grafton's exploration portfolio in Chile.

## Fitzroy Minerals Reports Copper Recoveries of up to 82.6% from Mini-Column Testing, with Preliminary Larger-Scale Results Trending Higher, at the Buen Retiro Copper Project, Chile

- Atlas analysis: [Read analysis](https://atlas-extractions.minestarters.com/news/fitzroy-minerals-reports-copper-recoveries-of-up-to-82-6-from-mini-column-testin--e7c2e809-1116-4fd2-9d34-340783f8889d) · [Markdown](https://atlas-extractions.minestarters.com/news/fitzroy-minerals-reports-copper-recoveries-of-up-to-82-6-from-mini-column-testin--e7c2e809-1116-4fd2-9d34-340783f8889d.md)
- Original announcement: 2026-09-23T11:00:00.000Z
- Atlas analysis published: Unknown date
- Atlas analysis updated: Unknown date
- Company: Fitzroy Minerals Inc. (FTZ.V)
- Original source: [orestocks](https://orestocks.com/company/FTZ.V/press-releases/6588162998374365)
- Atlas sentiment: 0.632
- Atlas tags: Heap Leach Route, Multi-Domain Tested

Fitzroy Minerals announced positive initial metallurgical test results from its Buen Retiro Copper Project in Chile, with mini-column heap leach recoveries reaching up to 82.6% for mixed material after 21 days, alongside low-to-moderate acid consumption. Preliminary 1-metre column tests are trending higher, projecting recoveries up to 95% for mixed material after 70 days. The company also noted favorable rock hardness and abrasiveness, which should positively impact crushing costs, and plans to incorporate these results into a PFS for Q2 2027.

## Fitzroy Puts a 3 to 4 Times Re-Rate on Studies, Not Drill Grade

- Atlas analysis: [Read analysis](https://atlas-extractions.minestarters.com/news/fitzroy-puts-a-3-to-4-times-re-rate-on-studies-not-drill-grade--5b0ca39f-d1cd-4bb2-a4ca-d600c48f5684) · [Markdown](https://atlas-extractions.minestarters.com/news/fitzroy-puts-a-3-to-4-times-re-rate-on-studies-not-drill-grade--5b0ca39f-d1cd-4bb2-a4ca-d600c48f5684.md)
- Original announcement: 2026-09-23T00:00:00.000Z
- Atlas analysis published: Unknown date
- Atlas analysis updated: Unknown date
- Company: Fitzroy Minerals (FTZ)
- Original source: [cruxinvestor](https://www.cruxinvestor.com/posts/fitzroy-puts-a-3-to-4-times-re-rate-on-studies-not-drill-grade)
- Atlas sentiment: 0.162
- Atlas tags: PEA-Supporting, PFS-Supporting, Maiden Resource, Heap Leach Route, Mill Route, Single Domain Only

Fitzroy Minerals has outlined a technical milestone calendar for its Buen Retiro project in Chile, targeting a 3- to 4-times valuation re-rate through the delivery of metallurgy, resource, and economic studies. The program is supported by a funding arrangement with Pucobre via a letter of intent, which aims to recover 90% of expenditures to fund work through to a Pre-Feasibility Study.

## Tintina Mines Announces Commencement of Drilling at the Dos Amigos Project in Chile

- Atlas analysis: [Read analysis](https://atlas-extractions.minestarters.com/news/tintina-mines-announces-commencement-of-drilling-at-the-dos-amigos-project-in-ch--db385e11-f99a-445d-bdaf-c37f0976d165) · [Markdown](https://atlas-extractions.minestarters.com/news/tintina-mines-announces-commencement-of-drilling-at-the-dos-amigos-project-in-ch--db385e11-f99a-445d-bdaf-c37f0976d165.md)
- Original announcement: 2026-09-22T11:16:01.412Z
- Atlas analysis published: Unknown date
- Atlas analysis updated: Unknown date
- Company: Tintina Mines Limited (TTS)
- Original source: [accesswire](https://www.accessnewswire.com/newsroom/en/metals-and-mining/tintina-mines-announces-commencement-of-drilling-at-the-dos-amigos-project-in-chi-1225169)
- Atlas sentiment: 0.332
- Atlas tags: Infill Drilling, QA/QC Disclosed, NI 43-101 Compliant

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. The company also announced the appointment of Richard Leclerc as General Manager for its Chilean subsidiary.

## Tintina Mines Announces Commencement of Drilling at the Dos Amigos Project in Chile

- Atlas analysis: [Read analysis](https://atlas-extractions.minestarters.com/news/tintina-mines-announces-commencement-of-drilling-at-the-dos-amigos-project-in-ch--056bf63d-fc32-4248-b0a8-02d239dffc42) · [Markdown](https://atlas-extractions.minestarters.com/news/tintina-mines-announces-commencement-of-drilling-at-the-dos-amigos-project-in-ch--056bf63d-fc32-4248-b0a8-02d239dffc42.md)
- Original announcement: 2026-09-22T10:45:00.000Z
- Atlas analysis published: Unknown date
- Atlas analysis updated: Unknown date
- Company: Tintina Mines Limited (TTS.V)
- Original source: [orestocks](https://orestocks.com/company/TTS.V/press-releases/6820194297787737)
- Atlas sentiment: 0.332
- Atlas tags: Infill Drilling, QA/QC Disclosed, Apparent Width Only, Cut-off Disclosed

Tintina Mines has commenced a 40,000-metre diamond drilling program at the Dos Amigos project in Chile to convert Inferred resources to Indicated. The company also announced the appointment of a new General Manager for its Chilean subsidiary and provided details of the existing copper-gold mineral resource estimate.

## Marimaca Enters Final Due Diligence on a 2027 Copper Build With 3 Lenders

- Atlas analysis: [Read analysis](https://atlas-extractions.minestarters.com/news/marimaca-enters-final-due-diligence-on-a-2027-copper-build-with-3-lenders--5cba62cb-92f6-4054-a153-3cf992c982d9) · [Markdown](https://atlas-extractions.minestarters.com/news/marimaca-enters-final-due-diligence-on-a-2027-copper-build-with-3-lenders--5cba62cb-92f6-4054-a153-3cf992c982d9.md)
- Original announcement: 2026-09-22T00:00:00.000Z
- Atlas analysis published: Unknown date
- Atlas analysis updated: Unknown date
- Company: Marimaca Copper (MARI)
- Original source: [cruxinvestor](https://www.cruxinvestor.com/posts/marimaca-enters-final-due-diligence-on-a-2027-copper-build-with-3-lenders)
- Atlas sentiment: 0.526
- Atlas tags: PFS Complete, Probable Reserve, High IRR, Fast Payback

Marimaca Copper has narrowed its debt financing search for the Marimaca Oxide Deposit (MOD) in Chile to three senior secured lenders currently conducting technical due diligence. The project, a permitted open-pit heap leach, features strong economics including a 31% IRR and 2.5-year payback at a $4.30/lb copper price, with construction targeted for 2027.

## Norsemont Hits 41 Meters of 4.59 g/t Gold as Phase 3 Drilling Continues to Expand the Choquelimpie System

- Atlas analysis: [Read analysis](https://atlas-extractions.minestarters.com/news/norsemont-hits-41-meters-of-4-59-g-t-gold-as-phase-3-drilling-continues-to-expan--dc33be8f-7018-4962-b4ab-e02555702c6e) · [Markdown](https://atlas-extractions.minestarters.com/news/norsemont-hits-41-meters-of-4-59-g-t-gold-as-phase-3-drilling-continues-to-expan--dc33be8f-7018-4962-b4ab-e02555702c6e.md)
- Original announcement: 2026-09-17T13:31:26.576Z
- Atlas analysis published: Unknown date
- Atlas analysis updated: Unknown date
- Company: Norsemont Mining Inc. (NOM)
- Original source: [accesswire](https://www.accessnewswire.com/newsroom/en/metals-and-mining/norsemont-hits-41-meters-of-4.59-g%2ft-gold-as-phase-3-drilling-continues-to-expa-1222854)
- Atlas sentiment: 0.686
- Atlas tags: Bonanza Intercept, Apparent Width Only, Step-Out Extension, QA/QC Disclosed

Norsemont Mining reported significant high-grade gold results from its Phase 3 drilling at the Choquelimpie project in Chile, highlighted by a 41m intercept at 4.59 g/t Au in hole DD13. The drilling is successfully expanding mineralization into areas not covered by the 2025 resource model and identifying three distinct mineralization styles.

## Norsemont Hits 41 Meters of 4.59 g/t Gold as Phase 3 Drilling Continues to Expand the Choquelimpie System

- Atlas analysis: [Read analysis](https://atlas-extractions.minestarters.com/news/norsemont-hits-41-meters-of-4-59-g-t-gold-as-phase-3-drilling-continues-to-expan--d906ccee-1813-4c72-a5db-48eb830b6ad3) · [Markdown](https://atlas-extractions.minestarters.com/news/norsemont-hits-41-meters-of-4-59-g-t-gold-as-phase-3-drilling-continues-to-expan--d906ccee-1813-4c72-a5db-48eb830b6ad3.md)
- Original announcement: 2026-09-17T13:00:00.000Z
- Atlas analysis published: Unknown date
- Atlas analysis updated: Unknown date
- Company: Norsemont Mining Inc. (NOM.CN)
- Original source: [orestocks](https://orestocks.com/company/NOM.CN/press-releases/6243672265834916)
- Atlas sentiment: 0.686
- Atlas tags: Bonanza Intercept, Apparent Width Only, QA/QC Disclosed, Step-Out Extension

Norsemont Mining reported significant high-grade gold results from its Phase 3 drilling at the Choquelimpie project in Chile, highlighted by a 41m intercept at 4.59 g/t Au in hole DD13. The drilling is expanding the mineralized footprint into areas not previously covered by the 2025 resource model and has identified three distinct styles of gold mineralization.

## San Lorenzo Outlines New ~2 Km Gold-Bearing Corridor And Expands San Juan Target Footprint

- Atlas analysis: [Read analysis](https://atlas-extractions.minestarters.com/news/san-lorenzo-outlines-new-2-km-gold-bearing-corridor-and-expands-san-juan-target--171d18d7-8f14-4baa-a1f8-84eea521b5b4) · [Markdown](https://atlas-extractions.minestarters.com/news/san-lorenzo-outlines-new-2-km-gold-bearing-corridor-and-expands-san-juan-target--171d18d7-8f14-4baa-a1f8-84eea521b5b4.md)
- Original announcement: 2026-09-17T11:00:00.000Z
- Atlas analysis published: Unknown date
- Atlas analysis updated: Unknown date
- Company: San Lorenzo Gold Corp. (SLG.V)
- Original source: [orestocks](https://orestocks.com/company/SLG.V/press-releases/4572646282926485)
- Atlas sentiment: 0.432
- Atlas tags: Step-Out Extension, QA/QC Disclosed, Nearology Play

San Lorenzo Gold Corp. has identified a new ~2 km gold-bearing structural corridor at the Quebrada Salada target within its Salvadora Project in Chile, with surface sampling returning up to 12.80 g/t Au. The company also reported an expanded geophysical footprint at the San Juan discovery and confirmed that drilling is currently underway at Cerro Blanco.

## Mogotes Metals Unlocks Two Copper-Gold Systems at Filo Sur with 20,000 meters Drilling Planned Through 2027

- Atlas analysis: [Read analysis](https://atlas-extractions.minestarters.com/news/mogotes-metals-unlocks-two-copper-gold-systems-at-filo-sur-with-20-000-meters-dr--bc8042af-b749-43c0-a883-eeede4c19786) · [Markdown](https://atlas-extractions.minestarters.com/news/mogotes-metals-unlocks-two-copper-gold-systems-at-filo-sur-with-20-000-meters-dr--bc8042af-b749-43c0-a883-eeede4c19786.md)
- Original announcement: 2026-09-17T00:00:00.000Z
- Atlas analysis published: Unknown date
- Atlas analysis updated: Unknown date
- Company: Mogotes Metals Inc. (MOG)
- Original source: [cruxinvestor](https://www.cruxinvestor.com/posts/mogotes-metals-unlocks-two-copper-gold-systems-at-filo-sur-with-20-000-meters-drilling-planned-through-2027)
- Atlas sentiment: 0.738
- Atlas tags: Step-Out Extension, Nearology Play, QA/QC Disclosed

Mogotes Metals has reported two new discoveries, the Albor breccia and Cruz del Sur porphyry, at its Filo Sur project in the Vicuña district. The company also closed a $15 million strategic investment from Rio Tinto and plans to expand its drilling program to 20,000 meters through 2027.

# Atlas tag definitions

- **Bonanza Intercept:** Exceptionally high-grade zone, well above the deposit-type norm.
- **Metal Equivalent Opaque:** Metal equivalent grade reported without disclosing the price, recovery, or payability assumptions used. Requires an actual metal equivalent grade; a combined elemental basket such as PGE is not a metal equivalent.
- **True Width Disclosed:** Actual thickness perpendicular to structure is stated, not just downhole length.
- **Apparent Width Only:** Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
- **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.
- **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.
- **Cut-off Undisclosed:** Cut-off grade not disclosed — cannot assess comparability to prior estimates or peers.
- **Step-Out Extension:** Mineralization extended beyond the previously known limit.
- **Infill Drilling:** Confirmatory drilling to raise resource confidence, not new discovery.
- **Stale Data Re-release:** Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
- **Deleterious Elements Present:** A source-stated penalty, refractory or recovery concern in the fact's scope. Element detection alone, including measured elements explicitly below penalty thresholds, does not trigger this tag. Respect negation and retain a separately stated concern even when another risk is explicitly absent.
- **Refractory Ore:** Complex mineralogy requiring oxidation or other special processing before recovery.
- **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.
- **Inferred Resource:** Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
- **All Inferred:** M&I share below the weak bound — very early stage, no engineering confidence.
- **Tonnage Growth:** Tonnage increase reaching the strong tier 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.
- **Category Upgrade:** Resource confidence improved — Inferred upgraded to Indicated, or Indicated to Measured. De-risking signal.
- **Tonnage Decline:** Resource tonnage decreased vs prior estimate — pit optimization removed marginal material or geological model revised down.
- **Grade Decline:** Average grade fell below the red-flag bound vs prior estimate — deposit economics worsening. May indicate high-grading in early drilling.
- **Contained Metal Decline:** Contained metal decreased vs prior despite tonnage growth — grade dilution exceeds volume gain.
- **Category Downgrade:** Resource confidence decreased — Measured downgraded to Indicated, or Indicated to Inferred. Unusual and concerning.
- **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 reduced beyond the suspicious bound 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.
- **Stale Estimate:** Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
- **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.
- **Historical Estimate Only:** Estimate pre-dates or does not comply with current JORC/NI 43-101 standards — requires verification drilling.
- **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. No prior estimate exists, so every change band is not applicable.
- **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.
- **DFS Bankable:** AACE Class 2-1 study complete and within the staleness window.
- **PFS Complete:** AACE Class 3 study complete.
- **PEA Only:** Only Class 4 / Initial Assessment economics available. Not bankable.
- **No Study:** No formal economic study — no engineering basis for the economics quoted.
- **Stale Study:** Beyond the staleness window measured from the estimate base date.
- **Inferred Heavy Feed:** Material Inferred share of LOM mill feed, or the share is undisclosed.
- **Resource Governance Undisclosed:** No QA/QC, top-cut methodology or QP independence disclosed. Caps study quality at the moderate tier.
- **NPV Cut vs Prior Study:** A restated study reduces NPV materially against its own predecessor on the same asset.
- **High IRR:** Post-tax real unlevered IRR in the strong tier or better.
- **Low IRR:** IRR below the moderate tier.
- **Below Jurisdiction Hurdle:** IRR below the greenfield or brownfield hurdle for its jurisdiction tier.
- **IRR Basis Undisclosed:** Real vs nominal not stated, so the tier is not comparable across studies.
- **Undervalued PNAV:** Funding-adjusted P/NAV in the strong tier or better.
- **Overvalued PNAV:** Funding-adjusted P/NAV in the red-flag tier.
- **Fast Payback:** Payback in the strong tier or better, on the required basis.
- **Slow Payback:** Payback in the weak tier or worse.
- **Bottom Quartile Cost:** P0-25 of the relevant commodity cost curve.
- **Top Quartile Cost:** P75-100 of the relevant commodity cost curve — first to cut in a downturn.
- **Cost Basis Undisclosed:** By-product vs co-product not stated, so quartile placement is unreliable.
- **Low Capital Intensity:** Below the benchmark for its project type.
- **High Capital Intensity:** Above the benchmark for its project type.
- **Conservative Pricing:** Conservative on the worst of the spot, 3-year and consensus comparisons.
- **Aggressive Pricing:** The study only works on a stretched price deck.
- **No Price Sensitivity:** No price sensitivity disclosed — treated as a deliberate signal, not a neutral gap.
- **No Discount Rate Sensitivity:** Blocks NPV normalisation to the common rate without reconstruction.
- **Price Deck Unstructured:** Prices given only as free text, so conservatism cannot be scored.
- **Long Reserve Life:** Reserve life index in the top tier of the single ladder.
- **Short Reserve Life:** Reserve life index in the critical tier.
- **Resource Life Upside:** Wide gap between reserve life and resource life — conversion upside rather than discovery dependence.
- **Fully Funded:** Funding coverage at or above 1.0x counting committed facilities only.
- **Material Funding Gap:** Funding coverage below the substantially-funded band.
- **Funding Gap Exceeds Market Cap:** Red flag regardless of headline NPV — the upside is not reachable by the current equity holder.
- **Encumbered by Stream:** An existing stream or royalty reduces attributable NAV and restricts future financing.
- **Stability Agreement:** Fiscal terms fixed, with a term covering the mine life.
- **High Government Take:** Total government take above the regional norm as a share of pre-tax cash flow.
- **Fully Permitted:** Key permits granted with no unresolved challenge.
- **Permit Challenge Outstanding:** An appeal or legal challenge is unresolved, which can defer first production indefinitely.
- **No Community Agreement:** Permits held but no IBA or benefit agreement — the start date is unsupported.
- **Closure Underprovisioned:** Closure provision materially below peers, unfunded, or undisclosed.
- **Upstream TSF:** Upstream tailings construction, which is banned in Brazil and Ecuador.