# Mining News in Sudbury Basin Canonical page: https://atlas-staging.minestarters.com/news?regions=sudbury+basin Atlas summarizes and classifies mining-industry stories from third-party publishers. Follow each source link for the original reporting. Results: 5 Returned: 5 Coverage: drill results, resource updates, and metallurgy; primary commodity matching; all time unless dates are supplied. Region: Sudbury Basin (sudbury basin) Applied filters: {"regions":["sudbury basin"],"document_types":["drill_results","resource_update","metallurgy"],"document_type_match":"any"} Sort: published_at desc Offset: 0; page size: 10 ## Errington Metals Identifies Growth Potential at the 1500 Zone - Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/errington-metals-identifies-growth-potential-at-the-1500-zone--f7818599-d6f4-4e3b-8f5a-211a75af8ad1) · [Markdown](https://atlas-staging.minestarters.com/news/errington-metals-identifies-growth-potential-at-the-1500-zone--f7818599-d6f4-4e3b-8f5a-211a75af8ad1.md) - Original announcement: 2026-10-15T05:01:10.000Z - Atlas analysis published: 2026-10-15T10:23:09.907Z - Atlas analysis updated: 2026-10-15T10:23:09.907Z - Company: Errington Metals Corp. (EM) - Original source: [jmn](https://www.juniorminingnetwork.com/junior-miner-news/press-releases/3496-tsx-venture/em/212930-errington-metals-identifies-growth-potential-at-the-1500-zone.html) - Atlas sentiment: 0.504 - Atlas tags: Bonanza Intercept, QA/QC Disclosed Errington Metals has reported high-grade polymetallic drill results from its 1500 Zone at the Errington Deposit, including an intercept of 8.3 m at 9.59% CuEq. The results successfully tested gaps within the existing resource wireframe and support a planned Phase 2 expansion campaign. ## Errington Metals Announces Maiden Mineral Resource Estimate for the Sudbury Basin Project - Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/errington-metals-announces-maiden-mineral-resource-estimate-for-the-sudbury-basi--bbb1c514-9795-4b6f-b9a9-5240ab9d2f14) · [Markdown](https://atlas-staging.minestarters.com/news/errington-metals-announces-maiden-mineral-resource-estimate-for-the-sudbury-basi--bbb1c514-9795-4b6f-b9a9-5240ab9d2f14.md) - Original announcement: 2026-09-22T10:31:24.756Z - Atlas analysis published: 2026-09-22T10:41:51.813Z - Atlas analysis updated: 2026-09-22T10:41:51.813Z - Company: Errington Metals Corp. (EM) - Original source: [cnw](https://www.newswire.ca/news-releases/errington-metals-announces-maiden-mineral-resource-estimate-for-the-sudbury-basin-project-805867554.html) - Atlas sentiment: 0.506 - Atlas tags: Maiden Resource, NI 43-101 Compliant, QP/CP Signed Errington Metals has announced its maiden Mineral Resource Estimate for the Sudbury Basin Project, reporting a combined M&I resource of 14.20 Mt at 1.20% Cu, 4.02% Zn, 1.11% Pb, 0.83 g/t Au, and 50.25 g/t Ag. Over 80% of the total resources are classified as Measured or Indicated, providing a high-confidence foundation for future development. The company is currently executing a 55,000 m drill program to expand the resource base. ## Errington Metals appoints Harold Gibson as Technical Advisor and Begins Fall Drill Campaign - Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/errington-metals-appoints-harold-gibson-as-technical-advisor-and-begins-fall-dri--79ef69a3-3c2b-45ec-9c1c-f95ce9fde7af) · [Markdown](https://atlas-staging.minestarters.com/news/errington-metals-appoints-harold-gibson-as-technical-advisor-and-begins-fall-dri--79ef69a3-3c2b-45ec-9c1c-f95ce9fde7af.md) - Original announcement: 2026-09-14T11:08:00.000Z - Atlas analysis published: Unknown date - Atlas analysis updated: Unknown date - Company: Errington Metals Corp. (EM.V) - Original source: [orestocks](https://orestocks.com/company/EM.V/press-releases/5086724010407169) - Atlas sentiment: 0.354 - Atlas tags: Nearology Play Errington Metals has appointed Dr. Harold L. Gibson, a renowned VMS expert, as Technical Advisor. The company has also commenced its fall drill campaign at the Vermilion property, with plans to deploy multiple rigs to test extensions and validate historical drilling. ## SPC Nickel Amends Cooperation Agreement with Vale Canada Limited, Extending Term of the Agreement on West Graham Project - Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/spc-nickel-amends-cooperation-agreement-with-vale-canada-limited-extending-term--dcc1959e-b9db-4378-9094-eaf5d8e9abc7) · [Markdown](https://atlas-staging.minestarters.com/news/spc-nickel-amends-cooperation-agreement-with-vale-canada-limited-extending-term--dcc1959e-b9db-4378-9094-eaf5d8e9abc7.md) - Original announcement: 2026-04-01T11:00:00.000Z - Atlas analysis published: Unknown date - Atlas analysis updated: Unknown date - Company: SPC Nickel Corp. (SPC) - Original source: [tmx](https://money.tmx.com/en/quote/SPC/news/4584069568819502/spc-nickel-amends-cooperation-agreement-with-vale-canada-limited-extending-term-) - Atlas sentiment: 0.221 - Atlas tags: Resource Update, QP/CP Signed SPC Nickel has amended its Cooperation Agreement with Vale Canada Limited to extend the Feasibility Study deadline for the West Graham Project by one year to June 30, 2027. The company also noted its historical progress, including a maiden mineral resource and completed metallurgical studies. ## SPC Nickel Announces Final Drill Results from the West Graham Project, including 0.81% Nickel and 0.77% Copper over 12.0 metres - Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/spc-nickel-announces-final-drill-results-from-the-west-graham-project-including--21cddc78-faf9-4b70-872d-ff2763f0d74f) · [Markdown](https://atlas-staging.minestarters.com/news/spc-nickel-announces-final-drill-results-from-the-west-graham-project-including--21cddc78-faf9-4b70-872d-ff2763f0d74f.md) - Original announcement: 2024-12-02T12:00:00.000Z - Atlas analysis published: Unknown date - Atlas analysis updated: Unknown date - Company: SPC Nickel Corp. (SPC) - Original source: [tmx](https://money.tmx.com/en/quote/SPC/news/4755708197780757/spc-nickel-announces-final-drill-results-from-the-west-graham-project-including-) - Atlas sentiment: 0.493 - Atlas tags: QA/QC Disclosed, Infill Drilling SPC Nickel has released final assay results from its 2024 drill campaign at the West Graham Project, featuring high-grade nickel and copper intercepts such as 0.81% Ni and 0.77% Cu over 12.0m. The program successfully delineated near-surface mineralization with grades exceeding the current in-pit resource averages, supporting a future MRE update. # 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.