# Tertiary Minerals reveals latest "incredibly compelling" silver results from Mushima North project

Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/tertiary-minerals-reveals-latest-incredibly-compelling-silver-results-from-mushi--48568734-e510-4ca7-b27d-5f0d2fc1ac5d

Original source: https://www.proactiveinvestors.com/companies/news/1098686/tertiary-minerals-reveals-latest-incredibly-compelling-silver-results-from-mushima-north-project-1098686.html

Publisher: proactiveinvestors

Original announcement: 2026-09-17T10:41:55.441Z

Analysis by Minestarters Atlas

Atlas analysis published: 2026-09-17T11:34:36.173Z

Atlas analysis updated: 2026-09-17T11:34:36.173Z

- Company: Tertiary Minerals PLC

- Ticker: TYM

- Exchange: Unavailable

- Region: Zambia

- Primary commodity: Silver

- Secondary commodities: Copper, Zinc

- Document categories: Drill results

- Extracted: 2026-09-17 11:34:36 UTC

Narrative sentiment: 0.90 · Bullish

## Minestarters Atlas summary

Tertiary Minerals has reported high-grade silver-copper results from the Mushima North project in Zambia, including an 82m intercept at 107 g/t silver equivalent. The drilling suggests the Discovery Zone remains open at depth, with some holes extending beyond the current exploration target boundary.

Reasoning: The results report the project's highest-grade silver-copper intersection to date, with intercepts extending beyond previous boundaries and suggesting the zone remains open at depth.

- Positive factor: highest-grade silver-copper intersection to date

- Positive factor: mineralisation remains open at depth

- Positive factor: extension beyond current Exploration Target boundary

Facts used in scoring: 9

## Classification and evidence

**Step-Out Extension**

Polarity: positive

Definition: Mineralization extended beyond the previously known limit.

Why it applies: Two of the four newly reported holes ended in mineralisation beyond the current Exploration Target boundary.

Evidence · text

> Two of the four newly reported holes ended in mineralisation beyond the current Exploration Target boundary.

## Extracted facts

Stored fact records: 9. Some facts used in scoring do not have a stored record.

## Drill Results (9)

### 26TMNRC-066

[Link to this fact](https://atlas-staging.minestarters.com/news/tertiary-minerals-reveals-latest-incredibly-compelling-silver-results-from-mushi--48568734-e510-4ca7-b27d-5f0d2fc1ac5d#fact-drill-facts-0)

Mushima North · silver

#### Identity

- Hole ID: 26TMNRC-066
- Project: Mushima North
- Commodity: silver
- Region: zambia
- Reported Region: zambia
- Ticker: TYM

#### Geometry

- Grade: 89
- Grade Unit: g/t
- Intercept: 82 m
- From: 8 m
- To: 90 m
- Intercept Depth: 8 m

#### Classification

- Sample Type: drill
- Group ID: 26TMNRC-066:8-90

#### QA/QC

- QA/QC Methods: standards

#### Review

- Needs Review: No
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-09-17T00:00:00.000Z

Reasoning: 89 g/t silver over 82m is a very strong intercept for this project.

- Positive factor: highest-grade silver-copper intersection yet

Evidence · text

> Hole 26TMNRC-066 returned 82m grading 89 g/t silver, 0.20% copper and 0.38% 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-066

[Link to this fact](https://atlas-staging.minestarters.com/news/tertiary-minerals-reveals-latest-incredibly-compelling-silver-results-from-mushi--48568734-e510-4ca7-b27d-5f0d2fc1ac5d#fact-drill-facts-1)

Mushima North · copper

#### Identity

- Hole ID: 26TMNRC-066
- Project: Mushima North
- Commodity: copper
- Region: zambia
- Reported Region: zambia
- Ticker: TYM

#### Geometry

- Grade: 0.2
- Grade Unit: %
- Intercept: 82 m
- From: 8 m
- To: 90 m
- Intercept Depth: 8 m

#### Classification

- Sample Type: drill
- Group ID: 26TMNRC-066:8-90

#### QA/QC

- QA/QC Methods: standards

#### Review

- Needs Review: No
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-09-17T00:00:00.000Z

Reasoning: Copper grade is part of a high-grade silver intersection.

Evidence · text

> 0.20% 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-066

[Link to this fact](https://atlas-staging.minestarters.com/news/tertiary-minerals-reveals-latest-incredibly-compelling-silver-results-from-mushi--48568734-e510-4ca7-b27d-5f0d2fc1ac5d#fact-drill-facts-2)

Mushima North · zinc

#### Identity

- Hole ID: 26TMNRC-066
- Project: Mushima North
- Commodity: zinc
- Region: zambia
- Reported Region: zambia
- Ticker: TYM

#### Geometry

- Grade: 0.38
- Grade Unit: %
- Intercept: 82 m
- From: 8 m
- To: 90 m
- Intercept Depth: 8 m

#### Classification

- Sample Type: drill
- Group ID: 26TMNRC-066:8-90

#### QA/QC

- QA/QC Methods: standards

#### Review

- Needs Review: No
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-09-17T00:00:00.000Z

Reasoning: Zinc grade is part of a high-grade silver intersection.

Evidence · text

> 0.38% 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-066

[Link to this fact](https://atlas-staging.minestarters.com/news/tertiary-minerals-reveals-latest-incredibly-compelling-silver-results-from-mushi--48568734-e510-4ca7-b27d-5f0d2fc1ac5d#fact-drill-facts-3)

Mushima North · silver

#### Identity

- Hole ID: 26TMNRC-066
- Project: Mushima North
- Commodity: silver
- Region: zambia
- Reported Region: zambia
- Ticker: TYM

#### Geometry

- Grade: 165
- Grade Unit: g/t
- Intercept: 37 m

#### Classification

- Sample Type: drill
- Group ID: 26TMNRC-066:sub-interval

#### QA/QC

- QA/QC Methods: standards

#### Review

- Needs Review: No
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-09-17T00:00:00.000Z

Reasoning: Significant high-grade silver enrichment within the main intercept.

- Positive factor: high-grade sub-interval

Evidence · text

> including a higher-grade 37m section at 165 g/t silver

#### 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-066

[Link to this fact](https://atlas-staging.minestarters.com/news/tertiary-minerals-reveals-latest-incredibly-compelling-silver-results-from-mushi--48568734-e510-4ca7-b27d-5f0d2fc1ac5d#fact-drill-facts-4)

Mushima North · copper

#### Identity

- Hole ID: 26TMNRC-066
- Project: Mushima North
- Commodity: copper
- Region: zambia
- Reported Region: zambia
- Ticker: TYM

#### Geometry

- Grade: 0.28
- Grade Unit: %
- Intercept: 37 m

#### Classification

- Sample Type: drill
- Group ID: 26TMNRC-066:sub-interval

#### QA/QC

- QA/QC Methods: standards

#### Review

- Needs Review: No
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-09-17T00:00:00.000Z

Reasoning: Copper grade in high-grade sub-interval.

Evidence · text

> 0.28% 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-066

[Link to this fact](https://atlas-staging.minestarters.com/news/tertiary-minerals-reveals-latest-incredibly-compelling-silver-results-from-mushi--48568734-e510-4ca7-b27d-5f0d2fc1ac5d#fact-drill-facts-5)

Mushima North · zinc

#### Identity

- Hole ID: 26TMNRC-066
- Project: Mushima North
- Commodity: zinc
- Region: zambia
- Reported Region: zambia
- Ticker: TYM

#### Geometry

- Grade: 0.58
- Grade Unit: %
- Intercept: 37 m

#### Classification

- Sample Type: drill
- Group ID: 26TMNRC-066:sub-interval

#### QA/QC

- QA/QC Methods: standards

#### Review

- Needs Review: No
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-09-17T00:00:00.000Z

Reasoning: Zinc grade in high-grade sub-interval.

Evidence · text

> 0.58% 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

### unspecified

[Link to this fact](https://atlas-staging.minestarters.com/news/tertiary-minerals-reveals-latest-incredibly-compelling-silver-results-from-mushi--48568734-e510-4ca7-b27d-5f0d2fc1ac5d#fact-drill-facts-6)

Mushima North · copper

Needs review: ungrounded

#### Identity

- Hole ID: unspecified
- Project: Mushima North
- Commodity: copper
- Region: zambia
- Reported Region: zambia
- Ticker: TYM

#### Geometry

- Grade: 1.01
- Grade Unit: %
- Intercept: 5 m
- From: 101 m
- To: 106 m
- Intercept Depth: 101 m

#### Classification

- Sample Type: drill
- Group ID: unspecified:101-106

#### QA/QC

- QA/QC Methods: standards

#### Review

- Needs Review: Yes
- Review Reason: ungrounded
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-09-17T00:00:00.000Z

Reasoning: Strong copper grade in a short intercept.

Evidence · text

> 5m at 1.01% 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

### unspecified

[Link to this fact](https://atlas-staging.minestarters.com/news/tertiary-minerals-reveals-latest-incredibly-compelling-silver-results-from-mushi--48568734-e510-4ca7-b27d-5f0d2fc1ac5d#fact-drill-facts-7)

Mushima North · silver

Needs review: ungrounded

#### Identity

- Hole ID: unspecified
- Project: Mushima North
- Commodity: silver
- Region: zambia
- Reported Region: zambia
- Ticker: TYM

#### Geometry

- Grade: 164
- Grade Unit: g/t
- Intercept: 5 m
- From: 101 m
- To: 106 m
- Intercept Depth: 101 m

#### Classification

- Sample Type: drill
- Group ID: unspecified:101-106

#### QA/QC

- QA/QC Methods: standards

#### Review

- Needs Review: Yes
- Review Reason: ungrounded
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-09-17T00:00:00.000Z

Reasoning: High grade silver intercept.

Evidence · text

> 164 g/t silver

#### 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

### unspecified

[Link to this fact](https://atlas-staging.minestarters.com/news/tertiary-minerals-reveals-latest-incredibly-compelling-silver-results-from-mushi--48568734-e510-4ca7-b27d-5f0d2fc1ac5d#fact-drill-facts-8)

Mushima North · zinc

Needs review: ungrounded

#### Identity

- Hole ID: unspecified
- Project: Mushima North
- Commodity: zinc
- Region: zambia
- Reported Region: zambia
- Ticker: TYM

#### Geometry

- Grade: 0.15
- Grade Unit: %
- Intercept: 5 m
- From: 101 m
- To: 106 m
- Intercept Depth: 101 m

#### Classification

- Sample Type: drill
- Group ID: unspecified:101-106

#### QA/QC

- QA/QC Methods: standards

#### Review

- Needs Review: Yes
- Review Reason: ungrounded
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-09-17T00:00:00.000Z

Reasoning: Trace zinc grade.

Evidence · text

> 0.15% 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

## 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.
