# Cobra Weighs Permeability & Acid Generation Alongside Grade at Boland Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/cobra-weighs-permeability-acid-generation-alongside-grade-at-boland--1331f8e6-b9e7-4998-b896-d8a4d439a1b4 Original source: https://www.cruxinvestor.com/posts/cobra-weighs-permeability-acid-generation-alongside-grade-at-boland Publisher: cruxinvestor Original announcement: 2026-08-20T00:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Cobra Resources - Ticker: COBR - Exchange: Unavailable - Region: Australia - Primary commodity: Rare earth - Secondary commodities: Dysprosium, Terbium - Document categories: Drill results, Resource update - Extracted: 2026-08-20 07:35:45 UTC Narrative sentiment: 0.40 · Bullish ## Minestarters Atlas summary Cobra Resources has completed an extensive 74-hole sonic core drilling program at its Boland and Head prospects, reporting high-grade TREO intercepts at Head. The company is integrating permeability, recovery, and acid generation data into its maiden Mineral Resource Estimate, which is expected in Q3 2026. Reasoning: The announcement details the completion of a sonic core program and provides specific high-grade TREO intercepts, while outlining the technical parameters \(permeability, acid generation\) being integrated into an upcoming maiden resource estimate. - Positive factor: High-grade TREO intercepts reported at Head prospect - Positive factor: Favorable permeability results \(70% of samples match/exceed benchmark\) - Positive factor: High net acid-producing potential noted to reduce reagent costs - Positive factor: Sonic core program provides high-confidence sampling - Negative factor: Aircore drilling prior to sonic program subject to known bias - Negative factor: Potential for grade loss in Pidinga formation due to fine material loss - Negative factor: Permitting for small-scale production not yet in hand Facts used in scoring: 7 ## 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 sonic core was selected for high-confidence sampling and that all assay results have been received following an extensive program. Evidence · text > The Sonic Core Program & What It Measured... all assay results have been received. **Maiden Resource** Polarity: neutral Definition: First formal MRE for the project — establishes baseline but typically exploration-stage with high Inferred component. Why it applies: The company is currently building its maiden Boland resource estimate scheduled for Q3 2026. Evidence · text > The maiden Mineral Resource Estimate is scheduled for the third quarter of 2026 ## Extracted facts Stored fact records: 7. Some facts used in scoring do not have a stored record. ## Drill Results (7) ### Fact 1 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-weighs-permeability-acid-generation-alongside-grade-at-boland--1331f8e6-b9e7-4998-b896-d8a4d439a1b4#fact-drill-facts-0) Head · rare earth Needs review: drill\_no\_hole\_id #### Identity - Project: Head - Commodity: rare earth - Ticker: COBR #### Geometry - Grade: 1567 - Grade Unit: ppm - Intercept: 2.35 m - From: 11 m - To: 13.35 m #### Classification - 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: 1,567 ppm TREO over 2.35m is a significant intercept for the Head prospect. - Positive factor: High-grade TREO intercept Evidence · text > 2.35 metres \(m\) at 1,567 parts per million \(ppm\) total rare earth oxide from 11 m depth ### Fact 2 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-weighs-permeability-acid-generation-alongside-grade-at-boland--1331f8e6-b9e7-4998-b896-d8a4d439a1b4#fact-drill-facts-1) Head · rare earth Needs review: drill\_no\_hole\_id #### Identity - Project: Head - Commodity: rare earth - Ticker: COBR #### Geometry - Grade: 710 - Grade Unit: ppm - Intercept: 4.4 m - From: 27.1 m - To: 31.5 m #### Classification - 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: Standard grade intercept reported at Head. Evidence · text > 4.4 m at 710 ppm from 27.1 m ### Fact 3 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-weighs-permeability-acid-generation-alongside-grade-at-boland--1331f8e6-b9e7-4998-b896-d8a4d439a1b4#fact-drill-facts-2) Head · rare earth Needs review: drill\_no\_hole\_id #### Identity - Project: Head - Commodity: rare earth - Ticker: COBR #### Geometry - Grade: 504 - Grade Unit: ppm - Intercept: 2.8 m - From: 36.1 m - To: 38.9 m #### Classification - 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: Standard grade intercept reported at Head. Evidence · text > 2.8 m at 504 ppm from 36.1 m ### Fact 4 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-weighs-permeability-acid-generation-alongside-grade-at-boland--1331f8e6-b9e7-4998-b896-d8a4d439a1b4#fact-drill-facts-3) Head · rare earth Needs review: drill\_no\_hole\_id #### Identity - Project: Head - Commodity: rare earth - Ticker: COBR #### Geometry - Grade: 916 - Grade Unit: ppm - Intercept: 2.75 m - From: 38.3 m - To: 41.05 m #### Classification - 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: 916 ppm TREO is a strong intercept within the reported sequence. - Positive factor: Relatively high grade intercept Evidence · text > 2.75 m at 916 ppm from 38.3 m ### Fact 5 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-weighs-permeability-acid-generation-alongside-grade-at-boland--1331f8e6-b9e7-4998-b896-d8a4d439a1b4#fact-drill-facts-4) rare earth #### Identity - Commodity: rare earth - Ticker: COBR #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-20T00:00:00.000Z Reasoning: 75% mixed rare earth oxide recovery from bench work. - Positive factor: Solid recovery for bench-scale ISR Evidence · text > 75% mixed rare earth oxide recovery over 17 days ### Fact 6 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-weighs-permeability-acid-generation-alongside-grade-at-boland--1331f8e6-b9e7-4998-b896-d8a4d439a1b4#fact-drill-facts-5) dysprosium #### Identity - Commodity: dysprosium - Ticker: COBR #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-20T00:00:00.000Z Reasoning: 80% dysprosium recovery reported in bench work. - Positive factor: Strong recovery for heavy rare earth Evidence · text > 80% dysprosium and terbium recovery ### Fact 7 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-weighs-permeability-acid-generation-alongside-grade-at-boland--1331f8e6-b9e7-4998-b896-d8a4d439a1b4#fact-drill-facts-6) terbium #### Identity - Commodity: terbium - Ticker: COBR #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-20T00:00:00.000Z Reasoning: 80% terbium recovery reported in bench work. - Positive factor: Strong recovery for heavy rare earth Evidence · text > 80% dysprosium and terbium recovery ## 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.