# MRD: Selectro Returns 95% Gallium Recovery from Bauxite Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/mrd-selectro-returns-95-gallium-recovery-from-bauxite--f485ee31-4ee9-447f-9081-444c7a82d813 Original source: https://www.asx.com.au/asx/v2/statistics/displayAnnouncement.do?display=pdf&idsId=03155057 Publisher: asx Original announcement: 2026-10-20T22:40:00.000Z Analysis by Minestarters Atlas Atlas analysis published: 2026-10-20T23:08:44.739Z Atlas analysis updated: 2026-10-20T23:08:44.739Z - Company: Mount Ridley Mines Limited - Ticker: MRD - Exchange: ASX - Region: Western Australia - Primary commodity: Gallium - Secondary commodities: Aluminium, Iron ore - Document categories: Metallurgy - Extracted: 2026-10-20 23:08:45 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Mount Ridley Mines has reported 95% gallium recovery from a Darling Range bauxite composite using its Selectro™ Process. The single-leach process also achieved 92% aluminium and 97% iron recovery, producing a silica-rich residue instead of traditional red mud. Reasoning: The release reports high recoveries for gallium, aluminium, and iron using a proprietary process on a third-party bauxite sample, providing a significant technical milestone for the company's technology. - Positive factor: High gallium recovery \(95%\) significantly exceeds conventional Bayer process \(~70%\) - Positive factor: Simultaneous recovery of gallium, aluminium, and iron in a single leach - Positive factor: Low temperature processing \(below 100°C\) - Positive factor: Cleaner residue \(silica-rich\) compared to traditional red mud - Positive factor: Demonstrates adaptability of Selectro™ technology to different feedstocks - Negative factor: Results are from a single composite sample \(first third-party test\) - Negative factor: Focus must now shift to complex separation and purification stages Facts used in scoring: 3 ## Classification and evidence **High Recovery** Polarity: positive Definition: Recovery at or above the exceptional band for the commodity and processing route. Why it applies: Gallium recovery of 94.9% is exceptional for this type of processing. Evidence · text > 95% gallium recovery **Mill Route** Polarity: neutral Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\). Why it applies: The process involves a leach circuit. Evidence · text > single bauxite leach **Single Domain Only** Polarity: negative Definition: Testing limited to one composite or domain — representativeness not established. Why it applies: only one composite was tested ## Extracted facts Stored fact records: 3. Some facts used in scoring do not have a stored record. ## Metallurgical Results (3) ### leach [Link to this fact](https://atlas-staging.minestarters.com/news/mrd-selectro-returns-95-gallium-recovery-from-bauxite--f485ee31-4ee9-447f-9081-444c7a82d813#fact-metallurgical-facts-0) Darling Range bauxite project · gallium #### Identity - Project: Darling Range bauxite project - Commodity: gallium - Region: australia\_wa - Reported Region: Western Australia - Ticker: MRD #### Test Work - Program Status: preliminary - Test Type: leach - Processing Route: Selectro™ Process - Sample: composite prepared from 16 vacuum drill samples taken from four drill holes across the Athena and Ceres prospects of ASQ’s Darling Range bauxite project #### Recovery - Recovery: 94.9 % - Recovery Basis: actual\_test - Head Grade: 80 - Head Grade Unit: ppm #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-20T00:00:00.000Z Reasoning: High recovery of a critical mineral from a third-party feedstock. - Positive factor: 94.9% recovery is exceptionally high compared to the ~70% benchmark for the Bayer process Evidence · table > 94.9% Context: 80 ppm #### Tags used in scoring **Byproduct Commodity** Polarity: neutral Definition: The tested commodity is a byproduct rather than the primary economic driver. Why it applies: the release describes a byproduct credit ### leach [Link to this fact](https://atlas-staging.minestarters.com/news/mrd-selectro-returns-95-gallium-recovery-from-bauxite--f485ee31-4ee9-447f-9081-444c7a82d813#fact-metallurgical-facts-1) Darling Range bauxite project · aluminium #### Identity - Project: Darling Range bauxite project - Commodity: aluminium - Region: australia\_wa - Reported Region: Western Australia - Ticker: MRD #### Test Work - Program Status: preliminary - Test Type: leach - Processing Route: Selectro™ Process - Sample: composite prepared from 16 vacuum drill samples taken from four drill holes across the Athena and Ceres prospects of ASQ’s Darling Range bauxite project #### Recovery - Recovery: 91.9 % - Recovery Basis: actual\_test - Head Grade: 41.9 - Head Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-20T00:00:00.000Z Reasoning: Solid recovery of primary bauxite component. - Positive factor: Strong recovery of 91.9% for a major commodity Evidence · table > 91.9% Context: 41.9% #### Tags used in scoring **Byproduct Commodity** Polarity: neutral Definition: The tested commodity is a byproduct rather than the primary economic driver. Why it applies: the release describes a byproduct credit ### leach [Link to this fact](https://atlas-staging.minestarters.com/news/mrd-selectro-returns-95-gallium-recovery-from-bauxite--f485ee31-4ee9-447f-9081-444c7a82d813#fact-metallurgical-facts-2) Darling Range bauxite project · iron\_ore #### Identity - Project: Darling Range bauxite project - Commodity: iron\_ore - Region: australia\_wa - Reported Region: Western Australia - Ticker: MRD #### Test Work - Program Status: preliminary - Test Type: leach - Processing Route: Selectro™ Process - Sample: composite prepared from 16 vacuum drill samples taken from four drill holes across the Athena and Ceres prospects of ASQ’s Darling Range bauxite project #### Recovery - Recovery: 96.7 % - Recovery Basis: actual\_test - Head Grade: 13.6 - Head Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-20T00:00:00.000Z Reasoning: Strong recovery of iron from the bauxite composite. - Positive factor: Very high recovery of 96.7% for iron Evidence · table > 96.7% Context: 13.6% #### Tags used in scoring **Byproduct Commodity** Polarity: neutral Definition: The tested commodity is a byproduct rather than the primary economic driver. Why it applies: the release describes a byproduct credit ## 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.