# Tertiary Minerals MD: High-grade zone at Mushima North "holding together very nicely" Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/tertiary-minerals-md-high-grade-zone-at-mushima-north-holding-together-very-nice--0f994f5a-97e1-4f03-85eb-f8a81c745143 Original source: https://www.proactiveinvestors.com/companies/news/1098754/tertiary-minerals-md-high-grade-zone-at-mushima-north-holding-together-very-nicely-1098754.html Publisher: proactiveinvestors Original announcement: 2026-09-18T11:47:16.114Z Analysis by Minestarters Atlas Atlas analysis published: 2026-09-18T11:51:06.032Z Atlas analysis updated: 2026-09-18T11:51:06.032Z - Company: Tertiary Minerals PLC - Ticker: TYM - Exchange: Unavailable - Region: Zambia - Primary commodity: Silver - Secondary commodities: Copper, Bismuth, Antimony - Document categories: Drill results - Extracted: 2026-09-18 11:51:06 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Tertiary Minerals has reported encouraging drilling results at the Mushima North project in Zambia, including a significant 82m intercept at 107 g/t silver equivalent. The drilling successfully extended the mineralised zone and identified copper grades above 1%, supporting the company's goal of a maiden Mineral Resource by year-end. Reasoning: The announcement reports a high-grade silver equivalent intercept \(107 g/t over 82m\) that extends the known zone and includes encouraging copper grades. - Positive factor: Significant high-grade silver equivalent intercept - Positive factor: Extension of mineralisation beyond existing exploration target - Positive factor: Presence of copper and critical minerals - Positive factor: Successful step-out/infill drilling Facts used in scoring: 2 ## Classification and evidence **Step-Out Extension** Polarity: positive Definition: Mineralization extended beyond the previously known limit. Why it applies: The drilling successfully extended the zone beyond the existing Exploration Target boundary. Evidence · text > successfully extended the zone **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: The programme was designed to provide infill drilling for a Mineral Resource. Evidence · text > designed both to provide infill drilling for a Mineral Resource ## Extracted facts Stored fact records: 2. Some facts used in scoring do not have a stored record. ## Drill Results (2) ### Fact 1 [Link to this fact](https://atlas-staging.minestarters.com/news/tertiary-minerals-md-high-grade-zone-at-mushima-north-holding-together-very-nice--0f994f5a-97e1-4f03-85eb-f8a81c745143#fact-drill-facts-0) Mushima North · silver Needs review: drill\_no\_hole\_id #### Identity - Project: Mushima North - Commodity: silver - Region: zambia - Reported Region: zambia - Ticker: TYM #### Geometry - Grade: 107 - Grade Unit: g/t - Intercept: 82 m #### Classification - Deposit Type: other - Program: mixed - Sample Type: drill - Mining Method: unknown #### Location - Location: Discovery Zone - Loc. Source: document #### QA/QC - QA/QC Methods: standards #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: bismuth, antimony #### Metal Equivalent - Metal Eq. Grade: 107 - Metal Eq. Unit: g/t silver equivalent #### Review - Needs Review: Yes - Review Reason: drill\_no\_hole\_id - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-18T00:00:00.000Z Reasoning: 82m at 107 g/t AgEq is a strong intercept for silver exploration. - Positive factor: High grade and significant width Evidence · text > intersection of 82 metres at 107 grams per tonne 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 **Metal Equivalent Opaque** Polarity: negative Definition: Metal equivalent grade reported without disclosing the price, recovery, or payability assumptions used. Why it applies: an equivalent grade is reported without its assumptions **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" ### Fact 2 [Link to this fact](https://atlas-staging.minestarters.com/news/tertiary-minerals-md-high-grade-zone-at-mushima-north-holding-together-very-nice--0f994f5a-97e1-4f03-85eb-f8a81c745143#fact-drill-facts-1) Mushima North · silver Needs review: drill\_no\_hole\_id #### Identity - Project: Mushima North - Commodity: silver - Region: zambia - Reported Region: zambia - Ticker: TYM #### Geometry - Grade: 191 - Grade Unit: g/t - Intercept: 37 m #### Classification - Deposit Type: other - Program: mixed - Sample Type: drill - Mining Method: unknown #### Location - Location: Discovery Zone - Loc. Source: document #### QA/QC - QA/QC Methods: standards #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: bismuth, antimony #### Metal Equivalent - Metal Eq. Grade: 191 - Metal Eq. Unit: g/t silver equivalent #### Review - Needs Review: Yes - Review Reason: drill\_no\_hole\_id - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-18T00:00:00.000Z Reasoning: 37m at 191 g/t AgEq is a bonanza-style sub-interval. - Positive factor: High-grade sub-interval Evidence · text > including 37 metres at 191 grams per tonne #### 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. Why it applies: an equivalent grade is reported without its assumptions **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "mixed" ## 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.