# OPERATIONS UPDATE FOR THE SOUTH CROFTY TIN PROJECT Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/operations-update-for-the-south-crofty-tin-project--90b9c0ce-74c4-4975-b2be-8e62eb78a44b Original source: https://www.londonstockexchange.com/news-article/TIN/operations-update-for-the-south-crofty-tin-project/17829949 Publisher: lse Original announcement: 2026-10-12T05:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: 2026-10-12T11:13:41.665Z Atlas analysis updated: 2026-10-12T11:13:41.665Z - Company: Cornish Metals plc - Ticker: TIN - Exchange: LSE - Region: Cornwall, United Kingdom - Primary commodity: Tin - Secondary commodities: Tungsten, Copper - Document categories: Drill results, Other - Extracted: 2026-10-12 11:13:42 UTC Narrative sentiment: 0.60 · Bullish ## Minestarters Atlas summary Cornish Metals has completed its Roskear West surface drilling programme, confirming tin mineralisation extends west of the current Mineral Resource Estimate and discovering a new high-grade tungsten zone. The company also reported significant infrastructure progress, including the opening of a new workshop and the arrival of critical mine winders. Reasoning: The update reports successful completion of a surface drilling programme that confirms resource extension and identifies new high-grade tungsten, alongside significant construction progress. - Positive factor: tin mineralisation confirmed continuing west of current MRE - Positive factor: discovery of new high-grade tungsten zone - Positive factor: identification of previously unmodelled tin-bearing structures - Positive factor: infrastructure milestones reached \(winder, workshop, excavation\) - Negative factor: all intervals are downhole lengths; true widths not yet calculated Facts used in scoring: 5 ## Classification and evidence **Step-Out Extension** Polarity: positive Definition: Mineralization extended beyond the previously known limit. Why it applies: Drilling confirmed tin lodes continuing west of the current MRE. Evidence · text > confirming tin lodes continuing west of the current Mineral Resource Estimate \("MRE"\) **Apparent Width Only** Polarity: negative Definition: Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness. Why it applies: All intervals are reported as downhole lengths with no true width calculated. Evidence · text > All intervals are downhole lengths; true widths have not yet been calculated. ## Extracted facts Stored fact records: 5. Some facts used in scoring do not have a stored record. ## Drill Results (5) ### SDD26\_001A [Link to this fact](https://atlas-staging.minestarters.com/news/operations-update-for-the-south-crofty-tin-project--90b9c0ce-74c4-4975-b2be-8e62eb78a44b#fact-drill-facts-0) South Crofty · tin #### Identity - Hole ID: SDD26\_001A - Project: South Crofty - Commodity: tin - Region: cornwall, united kingdom - Reported Region: cornwall, united kingdom - Ticker: TIN #### Geometry - Grade: 4.18 - Grade Unit: % - Intercept: 0.79 m #### Classification - Sample Type: drill - Group ID: SDD26\_001A:0-0.79 - Mining Method: unknown #### Location - Location: Roskear 1 South - Loc. Source: document #### QA/QC - QP Signed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-12T00:00:00.000Z Reasoning: High grade tin intercept confirming lode continuity. - Positive factor: high grade intercept - Negative factor: apparent width only Evidence · text > 0.79 metres at 4.18% Sn \(Roskear 1 South\) in drillhole SDD26\_001A #### 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 ### SDD26\_002 [Link to this fact](https://atlas-staging.minestarters.com/news/operations-update-for-the-south-crofty-tin-project--90b9c0ce-74c4-4975-b2be-8e62eb78a44b#fact-drill-facts-1) South Crofty · tin #### Identity - Hole ID: SDD26\_002 - Project: South Crofty - Commodity: tin - Region: cornwall, united kingdom - Reported Region: cornwall, united kingdom - Ticker: TIN #### Geometry - Grade: 1.46 - Grade Unit: % - Intercept: 1.51 m #### Classification - Sample Type: drill - Group ID: SDD26\_002:0-1.51 - Mining Method: unknown #### Location - Location: Roskear South - Loc. Source: document #### QA/QC - QP Signed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-12T00:00:00.000Z Reasoning: Standard intercept confirming lode continuity. - Positive factor: includes high grade sub-interval - Negative factor: apparent width only Evidence · text > 1.51 metres at 1.46% Sn #### 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 ### SDD26\_002 [Link to this fact](https://atlas-staging.minestarters.com/news/operations-update-for-the-south-crofty-tin-project--90b9c0ce-74c4-4975-b2be-8e62eb78a44b#fact-drill-facts-2) South Crofty · tin #### Identity - Hole ID: SDD26\_002 - Project: South Crofty - Commodity: tin - Region: cornwall, united kingdom - Reported Region: cornwall, united kingdom - Ticker: TIN #### Geometry - Grade: 5.71 - Grade Unit: % - Intercept: 0.33 m #### Classification - Sample Type: drill - Group ID: SDD26\_002:0-1.51 - Mining Method: unknown #### Location - Location: Roskear South - Loc. Source: document #### QA/QC - QP Signed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-12T00:00:00.000Z Reasoning: High grade sub-interval within the main intercept. - Positive factor: high grade sub-interval Evidence · text > including 0.33 metres at 5.71% Sn \(Roskear South\) #### 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 ### SDD26\_002 [Link to this fact](https://atlas-staging.minestarters.com/news/operations-update-for-the-south-crofty-tin-project--90b9c0ce-74c4-4975-b2be-8e62eb78a44b#fact-drill-facts-3) South Crofty · tungsten #### Identity - Hole ID: SDD26\_002 - Project: South Crofty - Commodity: tungsten - Region: cornwall, united kingdom - Reported Region: cornwall, united kingdom - Ticker: TIN #### Geometry - Grade: 1.41 - Grade Unit: % - Intercept: 8.58 m #### Classification - Sample Type: drill - Group ID: SDD26\_002:0-8.58 - Mining Method: unknown #### Location - Location: Roskear South - Loc. Source: document #### QA/QC - QP Signed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-12T00:00:00.000Z Reasoning: Discovery of a new high-grade tungsten zone. - Positive factor: new high-grade tungsten zone discovery - Positive factor: significant width - Negative factor: apparent width only Evidence · text > 8.58 metres at 1.41% W \(1.78% WO₃\) #### 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 ### SDD26\_002 [Link to this fact](https://atlas-staging.minestarters.com/news/operations-update-for-the-south-crofty-tin-project--90b9c0ce-74c4-4975-b2be-8e62eb78a44b#fact-drill-facts-4) South Crofty · tungsten #### Identity - Hole ID: SDD26\_002 - Project: South Crofty - Commodity: tungsten - Region: cornwall, united kingdom - Reported Region: cornwall, united kingdom - Ticker: TIN #### Geometry - Grade: 15.15 - Grade Unit: % - Intercept: 0.52 m #### Classification - Sample Type: drill - Group ID: SDD26\_002:0-8.58 - Mining Method: unknown #### Location - Location: Roskear South - Loc. Source: document #### QA/QC - QP Signed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-12T00:00:00.000Z Reasoning: Very high grade tungsten sub-interval. - Positive factor: bonanza grade - Negative factor: apparent width only Evidence · text > including 0.52 metres at 15.15% W \(19.10% WO₃\) #### 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.