# Mt Edon Drilling Reinforces Broad Rubidium Mineralisation 12 pages 1.2MB Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342 Original source: https://www.asx.com.au/asx/v2/statistics/displayAnnouncement.do?display=pdf&idsId=03099873 Publisher: asx Original announcement: 2026-06-02T00:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: 2026-10-01T02:11:00.778Z Atlas analysis updated: 2026-10-01T02:11:00.778Z - Company: Morella Corporation Limited - Ticker: 1MC - Exchange: ASX - Region: Western Australia - Primary commodity: Rubidium - Secondary commodities: Lithium - Document categories: Drill results, Resource update - Extracted: 2026-10-01 02:11:01 UTC Narrative sentiment: 0.70 · Bullish ## Minestarters Atlas summary Morella Corporation announced initial drill results from its Mt Edon Project in Western Australia, confirming broad rubidium mineralisation with high-grade intercepts up to 0.51% Rb2O and associated lithium credits. These results, which include significant widths such as 54m @ 0.17% Rb2O, will be incorporated into a maiden JORC Mineral Resource Estimate currently in progress. The drilling has improved the understanding of the Sophie pegmatite's continuity and extent, with further assay results pending. Reasoning: Morella Corporation announced strong initial drill results from its Mt Edon Project, confirming broad and high-grade rubidium mineralisation, with associated lithium credits. These results are crucial for the upcoming maiden JORC Mineral Resource Estimate, indicating significant progress towards de-risking the project. The continuity and extent of mineralisation have been improved, providing increased confidence in the project's potential. - Positive factor: Broad rubidium mineralisation confirmed across multiple pegmatites - Positive factor: High-grade rubidium intercepts up to 0.51% Rb2O - Positive factor: Drilling confirms continuity and extent of mineralisation at Sophie Prospect - Positive factor: Results will be incorporated into a maiden JORC Mineral Resource Estimate - Positive factor: Lithium credits enhance potential project economics - Positive factor: Comprehensive QA/QC procedures disclosed, including certified lab and QP sign-off - Negative factor: True width of mineralisation is not known for reported intercepts - Negative factor: Remaining assay results are pending, so full picture is not yet available Low confidence — this extraction should be reviewed alongside the original source. Facts used in scoring: 30 ## 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 includes detailed QA/QC disclosure in JORC Table 1, mentioning certified lab \(ALS Global\), QP sign-off \(Mr Henry Thomas\), and methods like duplicates, standards \(CRM\), and blanks. Evidence · text > Assay samples were dispatched to ALS Global in Perth, a certified laboratory. ... 17 Sample duplicates, 11 samples of Certified Reference Material \(CRM\), and 3 blanks were inserted into the sample sequence for QA/QC purposes. ... Mr Henry Thomas, who is a Member of the Australasian Institute of Mining and Metallurgy and is the Exploration Manager employed by Morella Corporation. Mr Henry Thomas consents to the inclusion in the report of the matters based on his information in the form and context in which it appears. **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: The release clearly states the cut-off grades and internal dilution rules used for reporting intervals: 0.05% Rb2O low-cutoff with 2m internal dilution for main intercepts, and 0.2% Rb2O low-cutoff with no internal dilution for higher-grade intervals. Evidence · text > The calculated intercepts are generated using a 0.05% Rb2O low-cutoff with an allowance for 2m of internal dilution. • Higher grade intervals are calculated with a 0.2% Rb2O low-cutoff with no internal dilution. **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: The document explicitly states that only downhole lengths are reported and the true width of the mineralisation is not known. Evidence · text > The true width of the mineralisation is not known, only down hole length is reported. **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 progressing towards a maiden JORC Mineral Resource Estimate for the Mt Edon Project. Evidence · text > Maiden JORC Mineral Resource Estimate in progress ## Extracted facts Stored fact records: 30. Some facts used in scoring do not have a stored record. ## Drill Results (30) ### MER034 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-0) Mt Edon · rubidium #### Identity - Hole ID: MER034 - Project: Mt Edon - Commodity: rubidium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.15 - Grade Unit: % - Intercept: 41 m - From: 75 m - To: 116 m - Hole Depth: 120 m - Intercept Depth: 75 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER034:75-116 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564894 - Northing: 6757077 - Elevation: 350 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.05 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 2 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: A 41m intercept at 0.15% Rb2O is a significant width, contributing positively to the understanding of the rubidium mineralisation continuity for the upcoming MRE. - Positive factor: Broad intercept length of 41m - Positive factor: Grade of 0.15% Rb2O contributes to resource definition - Negative factor: True width not known Evidence · table > 0.15 Context: 41 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER034 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-1) Mt Edon · lithium #### Identity - Hole ID: MER034 - Project: Mt Edon - Commodity: lithium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.067 - Grade Unit: % - Intercept: 41 m - From: 75 m - To: 116 m - Hole Depth: 120 m - Intercept Depth: 75 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER034:75-116 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564894 - Northing: 6757077 - Elevation: 350 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.05 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 2 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: The lithium grade of 0.067% Li2O over 41m is a positive credit, but not high enough to be a primary driver, consistent with its secondary commodity status. - Positive factor: Lithium credit adds to potential project economics - Negative factor: Grade is below typical economic thresholds for primary lithium deposits - Negative factor: True width not known Evidence · table > 0.067 Context: 41 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER034 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-2) Mt Edon · rubidium #### Identity - Hole ID: MER034 - Project: Mt Edon - Commodity: rubidium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.22 - Grade Unit: % - Intercept: 10 m - From: 83 m - To: 93 m - Hole Depth: 120 m - Intercept Depth: 75 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER034:83-93 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564894 - Northing: 6757077 - Elevation: 350 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.2 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 0 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: A 10m intercept at 0.22% Rb2O represents a higher-grade zone within the broader mineralisation, positively impacting the overall resource potential. - Positive factor: Higher grade sub-interval within a broader zone - Positive factor: Grade of 0.22% Rb2O is strong for rubidium - Negative factor: True width not known Evidence · table > 0.22 Context: 10 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER034 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-3) Mt Edon · lithium #### Identity - Hole ID: MER034 - Project: Mt Edon - Commodity: lithium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.067 - Grade Unit: % - Intercept: 10 m - From: 83 m - To: 93 m - Hole Depth: 120 m - Intercept Depth: 75 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER034:83-93 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564894 - Northing: 6757077 - Elevation: 350 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.2 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 0 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: The lithium grade of 0.067% Li2O over 10m is a positive credit, but not high enough to be a primary driver, consistent with its secondary commodity status. - Positive factor: Lithium credit adds to potential project economics - Negative factor: Grade is below typical economic thresholds for primary lithium deposits - Negative factor: True width not known Evidence · table > 0.067 Context: 10 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER035 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-4) Mt Edon · rubidium #### Identity - Hole ID: MER035 - Project: Mt Edon - Commodity: rubidium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.23 - Grade Unit: % - Intercept: 40 m - From: 57 m - To: 97 m - Hole Depth: 108 m - Intercept Depth: 57 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER035:57-97 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564877 - Northing: 6757040 - Elevation: 341 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.05 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 2 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: A 40m intercept at 0.23% Rb2O is a strong result, reinforcing the broad rubidium mineralisation and supporting the upcoming MRE. - Positive factor: Broad intercept length of 40m - Positive factor: Grade of 0.23% Rb2O is strong for rubidium - Negative factor: True width not known Evidence · table > 0.23 Context: 40 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER035 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-5) Mt Edon · lithium #### Identity - Hole ID: MER035 - Project: Mt Edon - Commodity: lithium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.063 - Grade Unit: % - Intercept: 40 m - From: 57 m - To: 97 m - Hole Depth: 108 m - Intercept Depth: 57 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER035:57-97 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564877 - Northing: 6757040 - Elevation: 341 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.05 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 2 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: The lithium grade of 0.063% Li2O over 40m is a positive credit, but not high enough to be a primary driver, consistent with its secondary commodity status. - Positive factor: Lithium credit adds to potential project economics - Negative factor: Grade is below typical economic thresholds for primary lithium deposits - Negative factor: True width not known Evidence · table > 0.063 Context: 40 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER035 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-6) Mt Edon · rubidium #### Identity - Hole ID: MER035 - Project: Mt Edon - Commodity: rubidium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.34 - Grade Unit: % - Intercept: 1 m - From: 60 m - To: 61 m - Hole Depth: 108 m - Intercept Depth: 57 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER035:60-61 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564877 - Northing: 6757040 - Elevation: 341 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.2 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 0 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: A 1m intercept at 0.34% Rb2O is a very high-grade rubidium result, indicating localized high-grade zones within the broader mineralisation. - Positive factor: High-grade rubidium intercept of 0.34% Rb2O - Negative factor: Narrow intercept length of 1m - Negative factor: True width not known Evidence · table > 0.34 Context: 1 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER035 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-7) Mt Edon · lithium #### Identity - Hole ID: MER035 - Project: Mt Edon - Commodity: lithium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.25 - Grade Unit: % - Intercept: 1 m - From: 60 m - To: 61 m - Hole Depth: 108 m - Intercept Depth: 57 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER035:60-61 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564877 - Northing: 6757040 - Elevation: 341 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.2 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 0 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: A 1m intercept at 0.25% Li2O is a notable lithium credit, adding value to the rubidium-focused project. - Positive factor: Lithium credit of 0.25% Li2O is a good byproduct grade - Negative factor: Narrow intercept length of 1m - Negative factor: Grade is below typical economic thresholds for primary lithium deposits - Negative factor: True width not known Evidence · table > 0.25 Context: 1 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER035 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-8) Mt Edon · rubidium #### Identity - Hole ID: MER035 - Project: Mt Edon - Commodity: rubidium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.51 - Grade Unit: % - Intercept: 1 m - From: 80 m - To: 81 m - Hole Depth: 108 m - Intercept Depth: 57 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER035:80-81 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564877 - Northing: 6757040 - Elevation: 341 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.2 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 0 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: A 1m intercept at 0.51% Rb2O is an exceptionally high-grade rubidium result, highlighting bonanza-grade zones within the pegmatite. - Positive factor: Exceptional high-grade rubidium intercept of 0.51% Rb2O - Negative factor: Narrow intercept length of 1m - Negative factor: True width not known Evidence · table > 0.51 Context: 1 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER035 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-9) Mt Edon · lithium #### Identity - Hole ID: MER035 - Project: Mt Edon - Commodity: lithium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.01 - Grade Unit: % - Intercept: 1 m - From: 80 m - To: 81 m - Hole Depth: 108 m - Intercept Depth: 57 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER035:80-81 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564877 - Northing: 6757040 - Elevation: 341 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.2 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 0 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: The lithium grade of 0.01% Li2O over 1m is very low and unlikely to contribute significantly to project economics. - Negative factor: Very low lithium grade - Negative factor: Narrow intercept length of 1m - Negative factor: True width not known Evidence · table > 0.01 Context: 1 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER036 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-10) Mt Edon · rubidium #### Identity - Hole ID: MER036 - Project: Mt Edon - Commodity: rubidium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.16 - Grade Unit: % - Intercept: 5 m - From: 40 m - To: 45 m - Hole Depth: 140 m - Intercept Depth: 40 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER036:40-45 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564916 - Northing: 6757000 - Elevation: 341 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.05 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 2 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: A 5m intercept at 0.16% Rb2O is a solid rubidium grade over a moderate width, contributing to the overall mineralisation footprint. - Positive factor: Good rubidium grade of 0.16% Rb2O - Negative factor: Narrow intercept length of 5m - Negative factor: True width not known Evidence · table > 0.16 Context: 5 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER036 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-11) Mt Edon · lithium #### Identity - Hole ID: MER036 - Project: Mt Edon - Commodity: lithium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.101 - Grade Unit: % - Intercept: 5 m - From: 40 m - To: 45 m - Hole Depth: 140 m - Intercept Depth: 40 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER036:40-45 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564916 - Northing: 6757040 - Elevation: 341 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.05 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 2 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: The lithium grade of 0.101% Li2O over 5m is a positive credit, but not high enough to be a primary driver, consistent with its secondary commodity status. - Positive factor: Lithium credit adds to potential project economics - Negative factor: Grade is below typical economic thresholds for primary lithium deposits - Negative factor: Narrow intercept length of 5m - Negative factor: True width not known Evidence · table > 0.101 Context: 5 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER036 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-12) Mt Edon · rubidium #### Identity - Hole ID: MER036 - Project: Mt Edon - Commodity: rubidium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.17 - Grade Unit: % - Intercept: 54 m - From: 62 m - To: 116 m - Hole Depth: 140 m - Intercept Depth: 40 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER036:62-116 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564916 - Northing: 6757000 - Elevation: 341 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.05 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 2 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: A 54m intercept at 0.17% Rb2O is an exceptionally broad and strong rubidium result, significantly reinforcing the scale and continuity of mineralisation at Sophie Prospect. - Positive factor: Exceptional intercept length of 54m - Positive factor: Strong rubidium grade of 0.17% Rb2O - Negative factor: True width not known Evidence · table > 0.17 Context: 54 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER036 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-13) Mt Edon · lithium #### Identity - Hole ID: MER036 - Project: Mt Edon - Commodity: lithium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.097 - Grade Unit: % - Intercept: 54 m - From: 62 m - To: 116 m - Hole Depth: 140 m - Intercept Depth: 40 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER036:62-116 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564916 - Northing: 6757000 - Elevation: 341 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.05 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 2 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: The lithium grade of 0.097% Li2O over 54m is a notable lithium credit over a significant width, adding value to the rubidium-focused project. - Positive factor: Broad intercept length of 54m - Positive factor: Lithium credit adds to potential project economics - Negative factor: Grade is below typical economic thresholds for primary lithium deposits - Negative factor: True width not known Evidence · table > 0.097 Context: 54 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER036 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-14) Mt Edon · rubidium #### Identity - Hole ID: MER036 - Project: Mt Edon - Commodity: rubidium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.14 - Grade Unit: % - Intercept: 5 m - From: 127 m - To: 132 m - Hole Depth: 140 m - Intercept Depth: 40 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER036:127-132 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564916 - Northing: 6757000 - Elevation: 341 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.05 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 2 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: A 5m intercept at 0.14% Rb2O is a solid rubidium grade over a moderate width, contributing to the overall mineralisation footprint. - Positive factor: Good rubidium grade of 0.14% Rb2O - Negative factor: Narrow intercept length of 5m - Negative factor: True width not known Evidence · table > 0.14 Context: 5 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER036 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-15) Mt Edon · lithium #### Identity - Hole ID: MER036 - Project: Mt Edon - Commodity: lithium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.075 - Grade Unit: % - Intercept: 5 m - From: 127 m - To: 132 m - Hole Depth: 140 m - Intercept Depth: 40 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER036:127-132 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564916 - Northing: 6757000 - Elevation: 341 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.05 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 2 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: The lithium grade of 0.075% Li2O over 5m is a positive credit, but not high enough to be a primary driver, consistent with its secondary commodity status. - Positive factor: Lithium credit adds to potential project economics - Negative factor: Grade is below typical economic thresholds for primary lithium deposits - Negative factor: Narrow intercept length of 5m - Negative factor: True width not known Evidence · table > 0.075 Context: 5 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER040 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-16) Mt Edon · rubidium #### Identity - Hole ID: MER040 - Project: Mt Edon - Commodity: rubidium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.15 - Grade Unit: % - Intercept: 38 m - From: 24 m - To: 62 m - Hole Depth: 72 m - Intercept Depth: 24 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER040:24-62 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564840 - Northing: 6756837 - Elevation: 341 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.05 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 2 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: A 38m intercept at 0.15% Rb2O is a significant width, contributing positively to the understanding of the rubidium mineralisation continuity for the upcoming MRE. - Positive factor: Broad intercept length of 38m - Positive factor: Grade of 0.15% Rb2O contributes to resource definition - Negative factor: True width not known Evidence · table > 0.15 Context: 38 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER040 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-17) Mt Edon · lithium #### Identity - Hole ID: MER040 - Project: Mt Edon - Commodity: lithium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.034 - Grade Unit: % - Intercept: 38 m - From: 24 m - To: 62 m - Hole Depth: 72 m - Intercept Depth: 24 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER040:24-62 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564840 - Northing: 6756837 - Elevation: 341 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.05 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 2 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: The lithium grade of 0.034% Li2O over 38m is very low and unlikely to contribute significantly to project economics, even as a byproduct. - Positive factor: Lithium credit adds to potential project economics - Negative factor: Very low lithium grade - Negative factor: True width not known Evidence · table > 0.034 Context: 38 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER040 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-18) Mt Edon · rubidium #### Identity - Hole ID: MER040 - Project: Mt Edon - Commodity: rubidium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.19 - Grade Unit: % - Intercept: 6 m - From: 27 m - To: 33 m - Hole Depth: 72 m - Intercept Depth: 24 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER040:27-33 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564840 - Northing: 6756837 - Elevation: 341 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.2 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 0 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: A 6m intercept at 0.19% Rb2O is a good rubidium grade over a moderate width, contributing to the overall mineralisation footprint. - Positive factor: Good rubidium grade of 0.19% Rb2O - Negative factor: Narrow intercept length of 6m - Negative factor: True width not known Evidence · table > 0.19 Context: 6 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER040 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-19) Mt Edon · lithium #### Identity - Hole ID: MER040 - Project: Mt Edon - Commodity: lithium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.045 - Grade Unit: % - Intercept: 6 m - From: 27 m - To: 33 m - Hole Depth: 72 m - Intercept Depth: 24 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER040:27-33 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564840 - Northing: 6756837 - Elevation: 341 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.2 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 0 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: The lithium grade of 0.045% Li2O over 6m is very low and unlikely to contribute significantly to project economics, even as a byproduct. - Positive factor: Lithium credit adds to potential project economics - Negative factor: Very low lithium grade - Negative factor: Narrow intercept length of 6m - Negative factor: True width not known Evidence · table > 0.045 Context: 6 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER040 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-20) Mt Edon · rubidium #### Identity - Hole ID: MER040 - Project: Mt Edon - Commodity: rubidium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.21 - Grade Unit: % - Intercept: 8 m - From: 39 m - To: 47 m - Hole Depth: 72 m - Intercept Depth: 24 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER040:39-47 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564840 - Northing: 6756837 - Elevation: 341 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.2 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 0 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: An 8m intercept at 0.21% Rb2O is a strong rubidium grade over a moderate width, indicating a higher-grade zone within the broader mineralisation. - Positive factor: Strong rubidium grade of 0.21% Rb2O - Negative factor: Narrow intercept length of 8m - Negative factor: True width not known Evidence · table > 0.21 Context: 8 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER040 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-21) Mt Edon · lithium #### Identity - Hole ID: MER040 - Project: Mt Edon - Commodity: lithium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.027 - Grade Unit: % - Intercept: 8 m - From: 39 m - To: 47 m - Hole Depth: 72 m - Intercept Depth: 24 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER040:39-47 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564840 - Northing: 6756837 - Elevation: 341 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.2 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 0 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: The lithium grade of 0.027% Li2O over 8m is very low and unlikely to contribute significantly to project economics, even as a byproduct. - Positive factor: Lithium credit adds to potential project economics - Negative factor: Very low lithium grade - Negative factor: Narrow intercept length of 8m - Negative factor: True width not known Evidence · table > 0.027 Context: 8 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER041 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-22) Mt Edon · rubidium #### Identity - Hole ID: MER041 - Project: Mt Edon - Commodity: rubidium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.18 - Grade Unit: % - Intercept: 16 m - From: 0 m - To: 16 m - Hole Depth: 24 m - Intercept Depth: 0 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER041:0-16 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564761 - Northing: 6756799 - Elevation: 341 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.05 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 2 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: A 16m intercept at 0.18% Rb2O is a good rubidium result over a moderate width, contributing to the overall mineralisation footprint. - Positive factor: Good rubidium grade of 0.18% Rb2O - Positive factor: Moderate intercept length of 16m - Negative factor: True width not known Evidence · table > 0.18 Context: 16 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER041 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-23) Mt Edon · lithium #### Identity - Hole ID: MER041 - Project: Mt Edon - Commodity: lithium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.056 - Grade Unit: % - Intercept: 16 m - From: 0 m - To: 16 m - Hole Depth: 24 m - Intercept Depth: 0 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER041:0-16 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564761 - Northing: 6756799 - Elevation: 341 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.05 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 2 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: The lithium grade of 0.056% Li2O over 16m is very low and unlikely to contribute significantly to project economics, even as a byproduct. - Positive factor: Lithium credit adds to potential project economics - Negative factor: Very low lithium grade - Negative factor: True width not known Evidence · table > 0.056 Context: 16 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER042 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-24) Mt Edon · rubidium #### Identity - Hole ID: MER042 - Project: Mt Edon - Commodity: rubidium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.2 - Grade Unit: % - Intercept: 39 m - From: 7 m - To: 46 m - Hole Depth: 54 m - Intercept Depth: 7 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER042:7-46 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564800 - Northing: 6756800 - Elevation: 341 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.05 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 2 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: A 39m intercept at 0.2% Rb2O is a strong result, reinforcing the broad rubidium mineralisation and supporting the upcoming MRE. - Positive factor: Broad intercept length of 39m - Positive factor: Strong rubidium grade of 0.2% Rb2O - Negative factor: True width not known Evidence · table > 0.2 Context: 39 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER042 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-25) Mt Edon · lithium #### Identity - Hole ID: MER042 - Project: Mt Edon - Commodity: lithium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.065 - Grade Unit: % - Intercept: 39 m - From: 7 m - To: 46 m - Hole Depth: 54 m - Intercept Depth: 7 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER042:7-46 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564800 - Northing: 6756800 - Elevation: 341 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.05 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 2 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: The lithium grade of 0.065% Li2O over 39m is a positive credit, but not high enough to be a primary driver, consistent with its secondary commodity status. - Positive factor: Lithium credit adds to potential project economics - Negative factor: Grade is below typical economic thresholds for primary lithium deposits - Negative factor: True width not known Evidence · table > 0.065 Context: 39 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER042 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-26) Mt Edon · rubidium #### Identity - Hole ID: MER042 - Project: Mt Edon - Commodity: rubidium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.24 - Grade Unit: % - Intercept: 26 m - From: 18 m - To: 44 m - Hole Depth: 54 m - Intercept Depth: 7 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER042:18-44 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564800 - Northing: 6756800 - Elevation: 341 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.2 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 0 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: A 26m intercept at 0.24% Rb2O is a strong rubidium result over a good width, indicating a higher-grade zone within the broader mineralisation. - Positive factor: Strong rubidium grade of 0.24% Rb2O - Positive factor: Moderate intercept length of 26m - Negative factor: True width not known Evidence · table > 0.24 Context: 26 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER042 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-27) Mt Edon · lithium #### Identity - Hole ID: MER042 - Project: Mt Edon - Commodity: lithium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.063 - Grade Unit: % - Intercept: 26 m - From: 18 m - To: 44 m - Hole Depth: 54 m - Intercept Depth: 7 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER042:18-44 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564800 - Northing: 6756800 - Elevation: 341 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.2 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 0 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: The lithium grade of 0.063% Li2O over 26m is a positive credit, but not high enough to be a primary driver, consistent with its secondary commodity status. - Positive factor: Lithium credit adds to potential project economics - Negative factor: Grade is below typical economic thresholds for primary lithium deposits - Negative factor: True width not known Evidence · table > 0.063 Context: 26 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER043 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-28) Mt Edon · rubidium #### Identity - Hole ID: MER043 - Project: Mt Edon - Commodity: rubidium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.19 - Grade Unit: % - Intercept: 25 m - From: 12 m - To: 37 m - Hole Depth: 66 m - Intercept Depth: 12 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER043:12-37 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564837 - Northing: 6756811 - Elevation: 341 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.05 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 2 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: A 25m intercept at 0.19% Rb2O is a good rubidium result over a moderate width, contributing to the overall mineralisation footprint. - Positive factor: Good rubidium grade of 0.19% Rb2O - Positive factor: Moderate intercept length of 25m - Negative factor: True width not known Evidence · table > 0.19 Context: 25 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### MER043 [Link to this fact](https://atlas-staging.minestarters.com/news/mt-edon-drilling-reinforces-broad-rubidium-mineralisation-12-pages-1-2mb--5e4114d2-2e0b-4d1d-bb6a-cd9a4a962342#fact-drill-facts-29) Mt Edon · lithium #### Identity - Hole ID: MER043 - Project: Mt Edon - Commodity: lithium - Region: australia\_wa - Reported Region: australia\_wa - Ticker: 1MC #### Geometry - Grade: 0.072 - Grade Unit: % - Intercept: 25 m - From: 12 m - To: 37 m - Hole Depth: 66 m - Intercept Depth: 12 m #### Classification - Deposit Type: other - Program: resource - Sample Type: drill - Group ID: MER043:12-37 - Mining Method: unknown #### Location - Location: Sophie Prospect - Easting: 564837 - Northing: 6756811 - Elevation: 341 m - Azimuth: 270 ° - Dip: -60 ° - Loc. Confidence: medium - Loc. Source: document #### QA/QC - Laboratory: ALS Global in Perth - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Metal Equivalent - Assumptions Disclosed: No #### Compositing - Cutoff Grade: 0.05 - Cutoff Unit: % Rb2O - Dilution Disclosed: Yes - Max Dilution: 2 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-02T00:00:00.000Z Reasoning: The lithium grade of 0.072% Li2O over 25m is a positive credit, but not high enough to be a primary driver, consistent with its secondary commodity status. - Positive factor: Lithium credit adds to potential project economics - Negative factor: Grade is below typical economic thresholds for primary lithium deposits - Negative factor: True width not known Evidence · table > 0.072 Context: 25 #### 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 **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: cutoff\_grade and internal dilution are both stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ## 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.