# SUH: Chalcocite Logged in Ongoing Diamond Drilling At Llahuin Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/suh-chalcocite-logged-in-ongoing-diamond-drilling-at-llahuin--4033d912-1e05-4653-a9ec-43539a89b182 Original source: https://www.asx.com.au/asx/v2/statistics/displayAnnouncement.do?display=pdf&idsId=03155477 Publisher: asx Original announcement: 2026-10-21T21:20:00.000Z Analysis by Minestarters Atlas Atlas analysis published: 2026-10-21T22:34:35.195Z Atlas analysis updated: 2026-10-21T22:34:35.195Z - Company: Southern Hemisphere Mining Limited - Ticker: SUH - Exchange: ASX - Region: Chile - Primary commodity: Copper - Secondary commodities: Gold - Document categories: Drill results, Other - Extracted: 2026-10-21 22:34:35 UTC Narrative sentiment: 0.40 · Bullish ## Minestarters Atlas summary Southern Hemisphere Mining is progressing its 2,000m diamond drilling program at the Llahuin Project in Chile. Recent logging in hole 24LHRD067 has identified chalcocite and chalcopyrite, and a new potential copper-gold target has been identified via historic drilling and outcrop observations. Reasoning: The release reports progress in an ongoing drilling program and the logging of beneficial chalcocite mineralisation, though no new assay results are provided in this specific announcement. - Positive factor: Logging of chalcocite is encouraging due to high copper content and beneficial processing qualities - Positive factor: Identification of a new potential higher-grade copper-gold prospect - Positive factor: Ongoing diamond drilling program is progressing - Negative factor: First assays for the current 2,000m program are still pending \(expected late November 2026\) - Negative factor: New gold-copper target relies on a single historic hole with no copper assays Facts used in scoring: 1 ## Classification and evidence **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: The company is targeting extensions of the existing Llahuin system and identifying new targets based on proximity to known mineralisation. Evidence · text > Extension drilling in hole 24LHRD067... has logged both chalcocite \(Cu2S\) and chalcopyrite \(CuFeS2\) mineralisation **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: The document provides extensive details on sampling, assaying, and QA/QC protocols used for recent drilling. Evidence · text > Recent diamond drilling showed assays to be less than expected for gold at Colina2 and the sludge from the coresaw was sampled and sent to ALS La Serena for gold analysis. ## Extracted facts Stored fact records: 1. Some facts used in scoring do not have a stored record. ## Drill Results (1) ### RCLLA009 [Link to this fact](https://atlas-staging.minestarters.com/news/suh-chalcocite-logged-in-ongoing-diamond-drilling-at-llahuin--4033d912-1e05-4653-a9ec-43539a89b182#fact-drill-facts-0) Llahuin · gold Historical result Needs review: historical\_restatement #### Identity - Hole ID: RCLLA009 - Project: Llahuin - Commodity: gold - Region: chile - Reported Region: chile - Ticker: SUH #### Geometry - Grade: 3.67 - Grade Unit: g/t - Intercept: 8 m - From: 45 m - To: 53 m - Intercept Depth: 45 m #### Classification - Sample Type: drill - Group ID: RCLLA009:45-53 #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, blanks, duplicates, umpire #### Compositing - Dilution Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-10-21T00:00:00.000Z Reasoning: Historic intercept of 8m @ 3.67 g/t gold from RCLLA009, which has not been assayed for copper. - Positive factor: Significant gold grade in a historic hole - Negative factor: No copper assays were performed on this historic interval - Negative factor: Historical data requires verification Evidence · text > one historic hole 8m @ 3.67g/t gold, from 45m with no copper assays done \(RCLLA009\) #### 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 **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release ## 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.