# Ark Mines’ Stage 3 drilling points to Sandy Mitchell resource growth Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/ark-mines-stage-3-drilling-points-to-sandy-mitchell-resource-growth--308579d6-f513-4db5-b03c-c8b8085ca63f Original source: https://stockhead.com.au/resources/ark-mines-stage-3-drilling-points-to-sandy-mitchell-resource-growth/ Publisher: stockhead Original announcement: 2026-08-20T02:57:38.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Ark Mines - Ticker: AHK - Exchange: Unavailable - Region: north Queensland - Primary commodity: Rare earths - Secondary commodities: Zircon, Rutile, Ilmenite - Document categories: Drill results, Resource update - Extracted: 2026-08-20 05:33:59 UTC Narrative sentiment: 0.70 · Bullish ## Minestarters Atlas summary Ark Mines has completed its Stage 3 drilling program at the Sandy Mitchell project, with all 218 holes intersecting mineralisation. The results, which include rare earth oxides and heavy minerals, are expected to underpin an updated mineral resource estimate due in Q3 2026. Reasoning: Successful Stage 3 drilling campaign that intersected mineralisation in all 218 holes, providing continuity and potential for resource expansion at Sandy Mitchell. - Positive factor: 100% of Stage 3 holes intersected mineralisation - Positive factor: Drilling extends mineralisation into new tenement \(EPM 28013\) - Positive factor: Results consistent with previous stages - Positive factor: Supports upcoming resource update and PFS Facts used in scoring: 4 ## Classification and evidence **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 release mentions that assaying returned values in every metre sampled and results are consistent with previous stages. Evidence · text > Assays across all holes were consistent with values returned from Stage 1 and Stage 2 drilling. **Step-Out Extension** Polarity: positive Definition: Mineralization extended beyond the previously known limit. Why it applies: Stage 3 drilling extends the project footprint into EPM 28013. Evidence · text > Stage 3 drilling extends beyond the boundary of mining lease ML 100409 into EPM 28013. ## Extracted facts Stored fact records: 4. Some facts used in scoring do not have a stored record. ## Drill Results (4) ### Fact 1 [Link to this fact](https://atlas-staging.minestarters.com/news/ark-mines-stage-3-drilling-points-to-sandy-mitchell-resource-growth--308579d6-f513-4db5-b03c-c8b8085ca63f#fact-drill-facts-0) Sandy Mitchell · rare\_earths Needs review: drill\_no\_hole\_id #### Identity - Project: Sandy Mitchell - Commodity: rare\_earths - Region: australia\_qld - Reported Region: north Queensland - Ticker: AHK #### Geometry - Grade: 361.5 - Grade Unit: ppm - Intercept: 2330.5 m #### Classification - Program: resource - Sample Type: drill #### Review - Needs Review: Yes - Review Reason: drill\_no\_hole\_id - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-20T00:00:00.000Z Reasoning: Average REO+Y grade reported for the Stage 3 drilling campaign. - Positive factor: Average grade across Stage 3 Evidence · text > total rare earth oxides plus yttrium averaged 361.5ppm ### Fact 2 [Link to this fact](https://atlas-staging.minestarters.com/news/ark-mines-stage-3-drilling-points-to-sandy-mitchell-resource-growth--308579d6-f513-4db5-b03c-c8b8085ca63f#fact-drill-facts-1) Sandy Mitchell · heavy minerals Needs review: drill\_no\_hole\_id #### Identity - Project: Sandy Mitchell - Commodity: heavy minerals - Region: australia\_qld - Reported Region: north Queensland - Ticker: AHK #### Geometry - Grade: 3.5 - Grade Unit: % - Intercept: 2330.5 m #### Classification - Program: resource - Sample Type: drill #### Review - Needs Review: Yes - Review Reason: drill\_no\_hole\_id - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-20T00:00:00.000Z Reasoning: Average heavy mineral content reported for the Stage 3 drilling campaign. - Positive factor: Average heavy mineral content across Stage 3 Evidence · text > Total heavy minerals content... averaged 3.5% across Stage 3 ### Fact 3 [Link to this fact](https://atlas-staging.minestarters.com/news/ark-mines-stage-3-drilling-points-to-sandy-mitchell-resource-growth--308579d6-f513-4db5-b03c-c8b8085ca63f#fact-drill-facts-2) Sandy Mitchell · zircon Needs review: drill\_no\_hole\_id #### Identity - Project: Sandy Mitchell - Commodity: zircon - Region: australia\_qld - Reported Region: north Queensland - Ticker: AHK #### Geometry - Grade: 658.7 - Grade Unit: ppm - Intercept: 2330.5 m #### Classification - Program: resource - Sample Type: drill #### Review - Needs Review: Yes - Review Reason: drill\_no\_hole\_id - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-20T00:00:00.000Z Reasoning: Average zircon content reported for the Stage 3 drilling campaign. - Positive factor: Average zircon content across Stage 3 Evidence · text > Zircon content averaged 658.7ppm... across Stage 3 ### Fact 4 [Link to this fact](https://atlas-staging.minestarters.com/news/ark-mines-stage-3-drilling-points-to-sandy-mitchell-resource-growth--308579d6-f513-4db5-b03c-c8b8085ca63f#fact-drill-facts-3) Sandy Mitchell · monazite Historical result Needs review: historical\_restatement #### Identity - Project: Sandy Mitchell - Commodity: monazite - Region: australia\_qld - Reported Region: north Queensland - Ticker: AHK #### Geometry - Grade: 1730 - Grade Unit: ppm #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-08-20T00:00:00.000Z Reasoning: Existing measured resource grade for monazite equivalent. - Positive factor: Existing measured resource Evidence · text > existing measured resource of 71.8Mt at 1730ppm monazite equivalent ## 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.