# Rietberg incline intersects "New" Cooper Suplhide Mineralisation ahead of known upper orebody Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/rietberg-incline-intersects-new-cooper-suplhide-mineralisation-ahead-of-known-up--900a3315-40d6-4280-8fe2-01b46d871653 Original source: https://senspdf.jse.co.za/documents/SENS_20261016_S605038.pdf Publisher: jse Original announcement: 2026-10-16T05:15:00.000Z Analysis by Minestarters Atlas Atlas analysis published: 2026-10-16T05:47:18.063Z Atlas analysis updated: 2026-10-16T05:47:18.063Z - Company: Copper 360 Limited - Ticker: CPR - Exchange: JSE - Region: South Africa - Primary commodity: Copper - Secondary commodities: None reported - Document categories: Drill results, Other - Extracted: 2026-10-16 05:47:18 UTC Narrative sentiment: 0.60 · Bullish ## Minestarters Atlas summary Copper 360 has intersected copper sulphide mineralisation 16 metres ahead of the planned 300 Level elevation at the Rietberg underground mine. Assays from bulk sampling returned copper grades between 0.48% and 1.50%, suggesting either an extension of the known orebody or a new mineralised body. Reasoning: The intersection of copper sulphide mineralisation ahead of the planned 300L elevation is a significant geological discovery that may expand the known orebody, though the use of an unaccredited lab and the low-grade nature of the intercept warrants caution. - Positive factor: Earlier than expected intersection of mineralisation - Positive factor: Potential for new mineralised body or extension of existing model - Positive factor: Presence of visible bornite and chalcopyrite - Negative factor: Unaccredited laboratory used for assays - Negative factor: Grades are relatively low \(0.48% to 1.50% Cu\) - Negative factor: Mineralisation not yet included in resource/reserves due to spacing 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 intersection occurred 16 metres ahead of the planned elevation, suggesting an extension of the mineralised model. Evidence · text > intersected copper sulphide mineralisation about 16 metres before reaching the planned 300 Level **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: The laboratory used \(QLS Laboratory\) is explicitly stated as unaccredited. Evidence · text > Samples were assayed at QLS Laboratory \(unaccredited\) ## 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/rietberg-incline-intersects-new-cooper-suplhide-mineralisation-ahead-of-known-up--900a3315-40d6-4280-8fe2-01b46d871653#fact-drill-facts-0) Rietberg · copper #### Identity - Project: Rietberg - Commodity: copper - Region: south\_africa - Reported Region: South Africa - Ticker: CPR #### Geometry - Grade: 1.5 - Grade Unit: % - Intercept: 6 m #### Classification - Sample Type: bulk - Mining Method: underground #### Location - Location: Rietberg incline - Loc. Source: document #### QA/QC - Laboratory: QLS Laboratory - QA/QC Disclosed: Yes - Lab Certified: No - QP Signed: Yes - QA/QC Methods: blanks, standards #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-16T00:00:00.000Z Reasoning: 1.50% Cu is at the top of the reported range for this new intersection. - Positive factor: High end of reported range - Negative factor: Unaccredited laboratory #### Tags used in scoring **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: qaqc\_disclosed is 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 ### Fact 2 [Link to this fact](https://atlas-staging.minestarters.com/news/rietberg-incline-intersects-new-cooper-suplhide-mineralisation-ahead-of-known-up--900a3315-40d6-4280-8fe2-01b46d871653#fact-drill-facts-1) Rietberg · copper #### Identity - Project: Rietberg - Commodity: copper - Region: south\_africa - Reported Region: South Africa - Ticker: CPR #### Geometry - Grade: 0.48 - Grade Unit: % - Intercept: 6 m #### Classification - Sample Type: bulk - Mining Method: underground #### Location - Location: Rietberg incline - Loc. Source: document #### QA/QC - Laboratory: QLS Laboratory - QA/QC Disclosed: Yes - Lab Certified: No - QP Signed: Yes - QA/QC Methods: blanks, standards #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-16T00:00:00.000Z Reasoning: 0.48% Cu is at the lower end of the reported range. - Negative factor: Low end of reported range - Negative factor: Unaccredited laboratory #### Tags used in scoring **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: qaqc\_disclosed is 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.