# Tertiary Minerals sees best silver-copper intersection yet at Mushima North project Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/tertiary-minerals-sees-best-silver-copper-intersection-yet-at-mushima-north-proj--e0ccb43b-d3a9-48d3-ad8e-dbe63caad872 Original source: https://www.proactiveinvestors.com/companies/news/1098547/tertiary-minerals-sees-best-silver-copper-intersection-yet-at-mushima-north-project-1098547.html Publisher: proactiveinvestors Original announcement: 2026-09-15T11:19:29.102Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Tertiary Minerals PLC - Ticker: TYM - Exchange: Unavailable - Region: Zambia - Primary commodity: Silver - Secondary commodities: Copper, Zinc - Document categories: Drill results - Extracted: 2026-09-15 11:50:26 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Tertiary Minerals reported its best silver-copper intersection to date at the Mushima North project in Zambia, highlighted by a 121m intercept at 78 g/t silver equivalent. The Phase 4 drilling programme continues to return high-grade near-surface silver-copper-zinc mineralisation, with the latest results suggesting the system remains open at depth. Reasoning: The announcement reports a significant new high-grade intersection \(121m at 78 g/t AgEq\) and a project-high silver grade, extending the known mineralised footprint. - Positive factor: best silver-copper intersection yet - Positive factor: high-grade silver result of 471 g/t - Positive factor: system remains open at depth - Positive factor: near-surface mineralisation Facts used in scoring: 7 ## Classification and evidence **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: Release mentions certified laboratory results. Evidence · text > further certified laboratory results expected imminently **Bonanza Intercept** Polarity: positive Definition: Exceptionally high-grade zone, well above the deposit-type norm. Why it applies: Project-high silver result of 471 g/t is exceptionally high. Evidence · text > project-high certified silver result of 471 g/t ## Extracted facts Stored fact records: 7. Some facts used in scoring do not have a stored record. ## Drill Results (7) ### 26TMNRC-053 [Link to this fact](https://atlas-extractions.minestarters.com/news/tertiary-minerals-sees-best-silver-copper-intersection-yet-at-mushima-north-proj--e0ccb43b-d3a9-48d3-ad8e-dbe63caad872#fact-drill-facts-0) Mushima North · silver #### Identity - Hole ID: 26TMNRC-053 - Project: Mushima North - Commodity: silver - Region: zambia - Reported Region: zambia - Ticker: TYM #### Geometry - Grade: 56 - Grade Unit: g/t - Intercept: 121 m - From: 4 m - To: 125 m - Intercept Depth: 4 m #### Classification - Program: exploration - Sample Type: drill - Group ID: 26TMNRC-053:4-125 #### QA/QC - QA/QC Methods: standards #### Metal Equivalent - Metal Eq. Grade: 78 - Metal Eq. Unit: g/t silver equivalent #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-15T00:00:00.000Z Reasoning: 121m at 56 g/t silver is a very strong intercept for this project. - Positive factor: best intersection yet - Positive factor: significant width Evidence · text > Hole 26TMNRC-053 returned 121m at 56 g/t silver, 0.26% copper and 0.37% zinc #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Metal Equivalent Opaque** Polarity: negative Definition: 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. Why it applies: an equivalent grade is reported without its assumptions ### 26TMNRC-053 [Link to this fact](https://atlas-extractions.minestarters.com/news/tertiary-minerals-sees-best-silver-copper-intersection-yet-at-mushima-north-proj--e0ccb43b-d3a9-48d3-ad8e-dbe63caad872#fact-drill-facts-1) Mushima North · copper #### Identity - Hole ID: 26TMNRC-053 - Project: Mushima North - Commodity: copper - Region: zambia - Reported Region: zambia - Ticker: TYM #### Geometry - Grade: 0.26 - Grade Unit: % - Intercept: 121 m - From: 4 m - To: 125 m - Intercept Depth: 4 m #### Classification - Program: exploration - Sample Type: drill - Group ID: 26TMNRC-053:4-125 #### QA/QC - QA/QC Methods: standards #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-15T00:00:00.000Z Reasoning: Copper grade is modest but part of a significant polymetallic intercept. - Positive factor: part of best intersection Evidence · text > 0.26% copper #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### 26TMNRC-053 [Link to this fact](https://atlas-extractions.minestarters.com/news/tertiary-minerals-sees-best-silver-copper-intersection-yet-at-mushima-north-proj--e0ccb43b-d3a9-48d3-ad8e-dbe63caad872#fact-drill-facts-2) Mushima North · zinc #### Identity - Hole ID: 26TMNRC-053 - Project: Mushima North - Commodity: zinc - Region: zambia - Reported Region: zambia - Ticker: TYM #### Geometry - Grade: 0.37 - Grade Unit: % - Intercept: 121 m - From: 4 m - To: 125 m - Intercept Depth: 4 m #### Classification - Program: exploration - Sample Type: drill - Group ID: 26TMNRC-053:4-125 #### QA/QC - QA/QC Methods: standards #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-15T00:00:00.000Z Reasoning: Zinc grade is modest but part of a significant polymetallic intercept. - Positive factor: part of best intersection Evidence · text > 0.37% zinc #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### 26TMNRC-053 [Link to this fact](https://atlas-extractions.minestarters.com/news/tertiary-minerals-sees-best-silver-copper-intersection-yet-at-mushima-north-proj--e0ccb43b-d3a9-48d3-ad8e-dbe63caad872#fact-drill-facts-3) Mushima North · silver #### Identity - Hole ID: 26TMNRC-053 - Project: Mushima North - Commodity: silver - Region: zambia - Reported Region: zambia - Ticker: TYM #### Geometry - Grade: 130 - Grade Unit: g/t - Intercept: 52 m #### Classification - Program: exploration - Sample Type: drill - Group ID: 26TMNRC-053:sub #### QA/QC - QA/QC Methods: standards #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-15T00:00:00.000Z Reasoning: Strong high-grade silver equivalent sub-interval within the main intercept. - Positive factor: high-grade sub-interval Evidence · text > including 52m at 130 g/t silver equivalent #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### 26TMNRC-053 [Link to this fact](https://atlas-extractions.minestarters.com/news/tertiary-minerals-sees-best-silver-copper-intersection-yet-at-mushima-north-proj--e0ccb43b-d3a9-48d3-ad8e-dbe63caad872#fact-drill-facts-4) Mushima North · silver #### Identity - Hole ID: 26TMNRC-053 - Project: Mushima North - Commodity: silver - Region: zambia - Reported Region: zambia - Ticker: TYM #### Geometry - Grade: 238 - Grade Unit: g/t - Intercept: 10 m #### Classification - Program: exploration - Sample Type: drill - Group ID: 26TMNRC-053:sub #### QA/QC - QA/QC Methods: standards #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-15T00:00:00.000Z Reasoning: Very high-grade 10m section. - Positive factor: higher-grade section Evidence · text > higher-grade 10m section at 238 g/t silver equivalent #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### 26TMNRC-065 [Link to this fact](https://atlas-extractions.minestarters.com/news/tertiary-minerals-sees-best-silver-copper-intersection-yet-at-mushima-north-proj--e0ccb43b-d3a9-48d3-ad8e-dbe63caad872#fact-drill-facts-5) Mushima North · silver #### Identity - Hole ID: 26TMNRC-065 - Project: Mushima North - Commodity: silver - Region: zambia - Reported Region: zambia - Ticker: TYM #### Geometry - Grade: 83 - Grade Unit: g/t - Intercept: 51 m - From: 28 m - To: 79 m - Intercept Depth: 28 m #### Classification - Program: exploration - Sample Type: drill - Group ID: 26TMNRC-065:28-79 #### QA/QC - QA/QC Methods: standards #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-15T00:00:00.000Z Reasoning: Significant silver equivalent intercept. - Positive factor: strong intercept Evidence · text > 51m at 83 g/t silver equivalent from 28m in hole 26TMNRC-065 #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### 26TMNRC-068 [Link to this fact](https://atlas-extractions.minestarters.com/news/tertiary-minerals-sees-best-silver-copper-intersection-yet-at-mushima-north-proj--e0ccb43b-d3a9-48d3-ad8e-dbe63caad872#fact-drill-facts-6) Mushima North · silver #### Identity - Hole ID: 26TMNRC-068 - Project: Mushima North - Commodity: silver - Region: zambia - Reported Region: zambia - Ticker: TYM #### Geometry - Grade: 44 - Grade Unit: g/t - Intercept: 60 m - From: 39 m - To: 99 m - Intercept Depth: 39 m #### Classification - Program: exploration - Sample Type: drill - Group ID: 26TMNRC-068:39-99 #### QA/QC - QA/QC Methods: standards #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-15T00:00:00.000Z Reasoning: Solid width intercept with moderate silver equivalent grade. - Positive factor: good width Evidence · text > 60m at 44 g/t silver equivalent from 39m in 26TMNRC-068 #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ## How Atlas produces this analysis Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.