# Graphite Mining News in Ontario

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

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

Results: 8
Returned: 8
Coverage: drill results, resource updates, and metallurgy; primary commodity matching; all time unless dates are supplied.
Region: Ontario (canada_on)
Commodity: Graphite (graphite)
Applied filters: {"regions":["canada_on"],"commodities":["graphite"],"commodity_scope":"primary","document_types":["drill_results","resource_update","metallurgy"],"document_type_match":"any"}
Sort: published_at desc
Offset: 0; page size: 10




## Zentek Invited to Present Albany Graphite Purification Results at the 26th International Nuclear Graphite Specialists Meeting

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/zentek-invited-to-present-albany-graphite-purification-results-at-the-26th-inter--e6d47131-460e-4d85-93b6-9f611ce798c1) · [Markdown](https://atlas-staging.minestarters.com/news/zentek-invited-to-present-albany-graphite-purification-results-at-the-26th-inter--e6d47131-460e-4d85-93b6-9f611ce798c1.md)
- Original announcement: 2026-10-05T11:25:00.000Z
- Atlas analysis published: 2026-10-05T12:27:30.759Z
- Atlas analysis updated: 2026-10-05T12:27:30.759Z
- Company: Zentek Ltd. (ZEN.V)
- Original source: [orestocks](https://orestocks.com/company/ZEN.V/press-releases/5696388548513660)
- Atlas sentiment: 0.456
- Atlas tags: Bench Scale Only, Single Domain Only

Zentek has been invited to present its acid-free bench-scale graphite purification results at the 26th International Nuclear Graphite Specialists Meeting in Japan. The company reported achieving ultra-high purity levels of up to 99.99985% carbon (5N+) using a fluidized bed reactor.

## Zentek Files Technical Report for the Albany Graphite PEA: US$3.85 Billion After-Tax NPV at a 5% Discount Rate, 27.4% After-Tax IRR, on an Acid-Free Route to Ultra-High-Purity Graphite

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/zentek-files-technical-report-for-the-albany-graphite-pea-us-3-85-billion-after--5404dfeb-62e1-4391-a63f-a23284b0812d) · [Markdown](https://atlas-staging.minestarters.com/news/zentek-files-technical-report-for-the-albany-graphite-pea-us-3-85-billion-after--5404dfeb-62e1-4391-a63f-a23284b0812d.md)
- Original announcement: 2026-09-24T11:40:00.000Z
- Atlas analysis published: 2026-09-24T11:49:31.504Z
- Atlas analysis updated: 2026-09-24T11:49:31.504Z
- Company: Zentek Ltd. (ZEN.V)
- Original source: [orestocks](https://orestocks.com/company/ZEN.V/press-releases/6158244542695071)
- Atlas sentiment: 0.712
- Atlas tags: NI 43-101 Compliant, Maiden Resource, Inferred Resource

Zentek has filed a NI 43-101 Preliminary Economic Assessment (PEA) for the Albany Graphite Project in Northern Ontario, reporting an after-tax NPV of US$3.85 billion and an IRR of 27.4%. The project utilizes an innovative acid-free thermal purification process to produce ultra-high-purity graphite. Micon recommends advancing the project to a Pre-Feasibility Study.

## Zentek Provides Corporate Update

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/zentek-provides-corporate-update--111a61e4-d6cb-48a8-9467-1248d9f1fde7) · [Markdown](https://atlas-staging.minestarters.com/news/zentek-provides-corporate-update--111a61e4-d6cb-48a8-9467-1248d9f1fde7.md)
- Original announcement: 2026-09-14T11:30:00.000Z
- Atlas analysis published: Unknown date
- Atlas analysis updated: Unknown date
- Company: Zentek Ltd. (ZEN)
- Original source: [newsfile](https://www.newsfilecorp.com/release/314081/Zentek-Provides-Corporate-Update)
- Atlas sentiment: 0.343
- Atlas tags: Bench Scale Only, Multi-Domain Tested

Zentek reported successful bench-scale purification of Albany graphite, achieving a peak purity of 99.99985% carbon (5N+). Additionally, the company received its first orders under a Government of Canada standing offer for its ZenGUARD™ air filtration products.

## Zentek Announces New PEA for Albany Graphite: US$3.85 Billion After-Tax NPV at a 5% Discount Rate, 27.4% After-Tax IRR, on an Acid-Free Route to 99.9992% Purity Graphite

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/zentek-announces-new-pea-for-albany-graphite-us-3-85-billion-after-tax-npv-at-a--3241f685-24cd-4157-93b4-2aa5d9077382) · [Markdown](https://atlas-staging.minestarters.com/news/zentek-announces-new-pea-for-albany-graphite-us-3-85-billion-after-tax-npv-at-a--3241f685-24cd-4157-93b4-2aa5d9077382.md)
- Original announcement: 2026-08-10T12:10:00.000Z
- Atlas analysis published: Unknown date
- Atlas analysis updated: Unknown date
- Company: Zentek Ltd. (ZEN)
- Original source: [tmx](https://money.tmx.com/en/quote/ZEN/news/7302854020626726/zentek-announces-new-pea-for-albany-graphite-us-3-85-billion-after-tax-npv-at-a-)
- Atlas sentiment: 0.455
- Atlas tags: Resource Update, QP/CP Signed, NI 43-101 Compliant, Inferred Resource, PEA-Supporting, Tonnage Growth, Grade Improvement, Contained Metal Growth, Cut-off Disclosed, High Purity, Bench Scale Only, Free Milling, POX/BIOX Route, Critical Mineral

Zentek Ltd. announced a new Preliminary Economic Assessment (PEA) for its Albany Graphite Project in Ontario, Canada, revealing a robust after-tax NPV of US$3.85 billion and an after-tax IRR of 27.4% at a 5% discount rate. The PEA outlines a 30-year mine life with an initial capital cost of US$817 million, focusing on an acid-free purification process to produce ultra-high-purity graphite for nuclear, defence, and other strategic critical mineral supply chains. The updated mineral resource estimate includes 23.1 Mt Indicated at 4.14% Cg and 13.3 Mt Inferred at 2.88% Cg, supporting the project's strong economic potential.

## Libra Energy Announces Graphite Discovery at Stimson Project in Ontario - Drills 4.7% Graphitic Carbon over 14.7 Metres

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/libra-energy-announces-graphite-discovery-at-stimson-project-in-ontario-drills-4--bba293de-cb93-4d0a-bb7b-d2d9ab3cc500) · [Markdown](https://atlas-staging.minestarters.com/news/libra-energy-announces-graphite-discovery-at-stimson-project-in-ontario-drills-4--bba293de-cb93-4d0a-bb7b-d2d9ab3cc500.md)
- Original announcement: 2026-05-13T11:00:00.000Z
- Atlas analysis published: 2026-09-22T02:22:39.251Z
- Atlas analysis updated: 2026-09-22T02:22:39.251Z
- Company: Libra Energy Materials Inc. (LIBR)
- Original source: [yahoo_press](https://finance.yahoo.com/news/libra-energy-announces-graphite-discovery-110000927.html)
- Atlas sentiment: 0.475
- Atlas tags: Step-Out Extension

Libra Energy has announced a graphite discovery at its Stimson project in Ontario following maiden diamond drilling. Drill hole ST26-001 intersected 4.7% graphitic carbon over 14.7 metres.

## Focus Graphite Announces One of the Largest Identified Graphite Deposits Globally at the Lac Tetepisca Project

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/focus-graphite-announces-one-of-the-largest-identified-graphite-deposits-globall--4b786616-5161-4686-8155-e6926c3f3af5) · [Markdown](https://atlas-staging.minestarters.com/news/focus-graphite-announces-one-of-the-largest-identified-graphite-deposits-globall--4b786616-5161-4686-8155-e6926c3f3af5.md)
- Original announcement: 2026-05-07T09:00:00.000Z
- Atlas analysis published: Unknown date
- Atlas analysis updated: Unknown date
- Company: Focus Graphite Inc. (FMS)
- Original source: [yahoo_press](https://finance.yahoo.com/sectors/energy/articles/focus-graphite-announces-one-largest-090000579.html)
- Atlas sentiment: 0.922
- Atlas tags: Indicated Resource, Inferred Resource, Resource Update

Focus Graphite has announced an upgraded mineral resource estimate for the Lac Tetepisca Project, totaling over 144 million tonnes of graphite. The resource includes 120.16 Mt of Indicated graphite at 10.27% Cg and 24.14 Mt of Inferred graphite at 9.88% Cg.

## Albany Graphite Corp. Engages Micon International to Complete New PEA for Albany Graphite Project

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/albany-graphite-corp-engages-micon-international-to-complete-new-pea-for-albany--34fb75cb-7fbc-42ed-9ff3-f68fa32810e5) · [Markdown](https://atlas-staging.minestarters.com/news/albany-graphite-corp-engages-micon-international-to-complete-new-pea-for-albany--34fb75cb-7fbc-42ed-9ff3-f68fa32810e5.md)
- Original announcement: 2026-04-09T13:20:00.000Z
- Atlas analysis published: Unknown date
- Atlas analysis updated: Unknown date
- Company: Zentek Ltd. (ZEN)
- Original source: [tmx](https://money.tmx.com/en/quote/ZEN/news/8985436482886309/albany-graphite-corp-engages-micon-international-to-complete-new-pea-for-albany-)
- Atlas sentiment: 0.226
- Atlas tags: Resource Update, Inferred Resource

Zentek Ltd. has engaged Micon International to complete a new Preliminary Economic Assessment (PEA) for the Albany Graphite Project in Ontario. The study will evaluate a high-purity thermal purification pathway and include an updated Mineral Resource Estimate.

## Focus Graphite Achieves 99.9996 wt.% Ultra-High Purity and 2.03 ppm EBC in Follow-On Testing

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/focus-graphite-achieves-99-9996-wt-ultra-high-purity-and-2-03-ppm-ebc-in-follow--da02e0be-26f1-4c7b-a9d7-5a55367fb567) · [Markdown](https://atlas-staging.minestarters.com/news/focus-graphite-achieves-99-9996-wt-ultra-high-purity-and-2-03-ppm-ebc-in-follow--da02e0be-26f1-4c7b-a9d7-5a55367fb567.md)
- Original announcement: 2025-12-11T10:00:00.000Z
- Atlas analysis published: Unknown date
- Atlas analysis updated: Unknown date
- Company: Focus Graphite Inc. (FMS)
- Original source: [yahoo_press](https://finance.yahoo.com/news/focus-graphite-achieves-99-9996-100000046.html)
- Atlas sentiment: 0.877
- Atlas tags: High Recovery

Focus Graphite has announced successful follow-on purification testing at its Lac Knife deposit, achieving 99.9996 wt.% ultra-high purity. The results also showed an Equivalent Boron Content (EBC) of 2.03 ppm, confirming the project's potential for high-performance battery applications.

# 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.