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Galan Lithium Limited (ASX: GLN) (Galan or the Company) is pleased to provide an update on its ongoing exploration activities at the Greenbushes South Lithium Project (a joint venture between Galan (80%) and Lithium Australia Limited (ASX:LIT)(20%) (Greenbushes South).
Highlights:
- Recent airborne radiometric, magnetic and DEM survey data processed for Greenbushes South Project
- Interpretation provided 18 key target zones for lithium pegmatites near the mineralising Donnybrook-Bridgetown Shear Zone
- Follow-up mapping and sampling of the first target site (GS11) resulted in a discovery of an approx. 200 m x 40 m outcropping pegmatite lens
- Soil samples and rock chips from GS11 site sent for geochemical assay
- Further fieldwork on GS11 and other key targets scheduled from July
- Conservation Management Plan for pending tenements has reached final revision stage for planned H2 2022 exploration activities
Airborne geophysics processed and key target zones identified
Galan has received the processed data and target generation report from the recent airborne geophysical survey campaign for its Greenbushes South tenement (E70/4790). This survey provided high-resolution radiometric and magnetic data from a fixed-wing aircraft flying at an average of 45 metres of terrain clearance, a significant improvement for resolution over previous publicly available data sets (Figure 1).
Southern Geoscience Consultants (SGC) provided processing and interpretation of this new data as well as the development of key target zones for lithium-bearing pegmatites. Target generation incorporated structural and lithological information (provided by the airborne data), as well as field mapping and surface geochemistry undertaken by Galan.
The new magnetic, radiometric and DEM data gives more precision to the location of the mineralising Donny-Brook Bridgetown Shear Zone (DBSZ), associated with the Greenbushes pegmatite. The final report from SGC identified twelve (12) pegmatite targets within Galan’s granted E70/4790 tenement, and an additional six (6) pegmatite targets within Galan’s pending tenements (Figure 3).
Sampling and mapping program commenced; pegmatite outcrop discovered
Following the above, Galan initiated a soil sampling and field mapping program over the first of the newly identified targets on E70/4790 (GS11 target zone; Figure 4).
Field mapping activities over the GS11 target area revealed an outcrop of approximately 200 m long by 40 m wide pegmatite. This pegmatite hassimilar macroscopic mineralogy to those pegmatites described at the Greenbushes Lithium Mine to the north. The assemblages are albite-quartz ± microcline ± muscovite ± garnet. The pegmatite lens hosts several tourmaline-rich zones at a metre scale and is recognized by coarse-grained tourmaline and high abundances of interstitial albite quartz and muscovite (Figure 2).
Galan has sampled four representative rock chip samples from the surficial pegmatite at GS11. A partially completed soil assay program has also been undertaken, with 65 soil samples to date at 50 m x 100 m grid spacing across the potential target zone centred over the pegmatite outcrop. The soil sampling program is aimed at delineating potential pegmatites at depth through the detection of elevated levels of pathfinder elements at the surface (As, Sn, Cs, Ta, Rb).
Galan has submitted these rock and soil samples for assay and is awaiting results. Completion of the soil grid over GS11, and further follow-up soil and rock chip sampling work on other targets along the major structure that hosts the mineralisation are planned in Q3, 2002. The results will help guide the geophysical survey to test for blind pegmatites.
Figure 1: RTP Magnetic data comparison; 2015 GSWA data (left) and new 2022 airborne campaign data (right).
Conservation Management Plan reaches final revisions
Galan has also received its final revisions from the Department of Biodiversity, Conservation and Attractions (DBCA) for the Conservation Management Plan (CMP) for its planned exploration activities on pending Greenbushes South tenements (E70/4889, P70/1702 & P70/1703). The CMP outlines the proposed exploration and prospecting activities, management, and communications for work within the Hester State Forest (30) / Proposed Nature Reserve (154).
Galan has provided the DBCA with its planned soil sampling and ground geophysics activities within these state forests. Planned activities are aimed to commence during Q3 2022. The DBCA has indicated that subject to the final revisions of the CMP, the pending tenements will then be submitted for ministerial approval to undertake these low-impact exploration activities.
Figure 2: Outcrop Location and field photographs; a) Map of field location and soil sampling grid, red rectangle in the inset shows map boundary; b) Field photograph of outcropping pegmatite lens (pink line delineates mapped boundary); c) Photograph of pegmatite.
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LIT:AU
Beneficiation Delivers 4,480ppm Lithium Clay Concentrate at Red Mountain Project, USA
Key Highlights
- Follow-up Falcon C beneficiation testwork completed on diamond drill core samples from the Red Mountain Project.
- Sample upgraded from 3,245ppm to 4,481ppm Lithium.
- Successful removal of 51.8% of dense material and concurrent 38% increase in lithium grade.
- Reinforces the April 2025 results indicating that Red Mountain mineralisation may be upgraded using beneficiation.
- Attrition Scrubbing beneficiation testwork now underway for comparison with the Falcon testwork results.
- Leaching testwork to be undertaken on Falcon and Attrition Scrubbing products to confirm reduced acid consumptions.
Following on from the results announced on 22 April 2025, this second phase of Falcon Beneficiation testwork was designed to concentrate lithium-bearing clay and remove unmineralized gangue (waste) in order to decrease mass and increase lithium grade. In a mineral processing context, a reduction in tonnes and volume processed with an increased head-grade typically results in lower processing costs.
This second Falcon testwork program was conducted by Sepro Laboratories (Sepro) and utilised high- clay drill core samples from hole RMDD002 (which intersected 86.9m @ 1,470ppm Li from 18.3m4). This follow-up test was designed to establish how high-clay material performed using the Falcon method, for comparison with results from the previous test conducted on lower grade mineralisation from Red Mountain.
The latest result indicates a strong ability to upgrade mineralisation, achieving a reduction of sample mass by 51.8% with a concurrent increase in lithium grade of 38% (from 3,245 to 4,481ppm Li), with an overall 66.6% lithium recovery. These results compare favourably with the previous round of testwork, exhibiting both a greater upgrade in lithium and reduction in mass, with a substantial 43% reduction in calcium and carbon (interpreted as calcite removal) expected to result in a significant reduction in acid consumption. The Company has commissioned Attrition Scrubbing testwork – another method of beneficiation – for comparison with the Falcon results. Once complete, sample products from both the Falcon and Attrition Scrubbing tests will be assessed for acid consumption in future leachability tests.
Astute Chairman, Tony Leibowitz, said:“The demonstration of a commercial pathway to a lithium product is the natural complement to the establishment of a Mineral Resource. It is for this reason that Astute has actively advanced workflows for both exploration drilling and metallurgical testing at Red Mountain, in tandem. These positive results, which reinforce the previous results from the project, represent the systematic de-risking of what continues to emerge as an important US- based critical metals project.”
Figure 1. Clay-rich RMDD002 drill-core from 160-165ft (3,280ppm Li) used in Falcon beneficiation testwork.
Background
Located in central-eastern Nevada (Figure 4), adjacent to the Grand Army of the Republic Highway (Route 6), which links the regional mining towns of Ely and Tonopah, the Red Mountain Project was staked by Astute in August 2023.
The Project area has broad mapped tertiary lacustrine (lake) sedimentary rocks known locally as the Horse Camp Formation1. Elsewhere in the state of Nevada, equivalent rocks host large lithium deposits (see Figure 4) such as Lithium Americas’ (NYSE: LAC) 62.1Mt LCE Thacker Pass Project2 and American Lithium (TSX.V: LI) 9.79Mt LCE TLC Lithium Project3.
Astute has completed substantial surface sampling campaigns at Red Mountain, which indicate widespread lithium anomalism in soils (Figure 3) and confirmed lithium mineralisation in bedrock with some exceptional grades of up to 4,150ppm Li1,5.
A total of 19 RC and diamond drill holes have been drilled at the project to date for a combined 3,666m. Exploration drilling has been highly successful, with strong lithium mineralisation intersected in every hole for which assays have been received9.
Scoping leachability testwork on mineralised material from Red Mountain indicates high leachability of lithium of up to 98%, varying with temperature, acid strength and leaching duration, and proof-of- concept beneficiation testwork has indicated the potential to upgrade the Red Mountain mineralisation6,8.
About Beneficiation
The primary purpose of beneficiation is to optimise the value of mineralised material by separating unwanted waste material (gangue) from valuable minerals.
Testwork conducted to date at Red Mountain indicates that clay-hosted lithium mineralisation may be upgraded through beneficiation, which seeks to remove coarser grained material, such as particles of sand, that do not contain appreciable lithium8. Successful beneficiation can result in reduced reagent consumption, reduced plant wear and tear, and a reduced environmental footprint.
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Pursuit Dispatchs 99.5% Lithium Carbonate Samples to Potential Strategic Partners as Feasibility Studies Progress
HIGHLIGHTS
- Final product assays confirm 99.5% lithium carbonate purity, upgraded from pilot output via bench scale processing.
- Certified samples dispatched to multiple potential offtake and strategic partners for qualification.
- Feasibility study progressing for low cost, 5,000tpa operation at Rio Grande Sur.
- Ongoing small batch lithium carbonate production to support offtake qualification while preserving capital discipline in current market conditions.
- Pursuit continues to advance its dual-pronged growth strategy progressing Rio Grande Sur while accelerating the evaluation of strategic gold, silver, and copper acquisitions in Argentina.
Figure 1 – Pursuit’s 99.5% Li₂CO₃ Sample Ready for Dispatch to Potential Offtake Partners
In relation to the dispatch of samples, Pursuit Managing Director & CEO, Aaron Revelle, said:
“Achieving 99.5% lithium carbonate purity is a major technical milestone for Pursuit and a clear demonstration of the capability embedded within our flowsheet, team, and pilot plant infrastructure. It not only validates the compatibility of our process design with Rio Grande Sur brines but also confirms our ability to deliver a consistently high-quality product suited to a wide range of industrial and energy storage applications. Dispatching these samples to potential offtake partners is a critical first step in our commercialisation pathway, enabling product qualification and accelerating engagement with strategic customers in tough market conditions. As we transition into the next phase of development, our focus is firmly on advancing feasibility for our 5,000tpa operation and securing long-term partnerships that will underpin the future production and growth of the Rio Grande Sur Project.”
Initial pilot production at Pursuit’s 250tpa Pilot Plant in Salta successfully produced 15 kilograms of lithium carbonate at 98.9% purity, validating both the compatibility of the Rio Grande Sur brine and the efficiency of the Company’s conventional processing flowsheet. To enhance product quality and simulate potential refinement steps at commercial scale, a portion of this material was further treated at bench scale using fractional crystallisation (FX) and ion exchange (IX) techniques. These post processing steps upgraded the product to 99.5% purity, meeting established benchmarks for technical-grade lithium carbonate.
The final product assays confirm not only the effectiveness of Pursuit’s downstream purification strategy but also the scalability and robustness of its broader flowsheet. This achievement represents a critical milestone on the path to commercial readiness supporting key feasibility assumptions, validating end product quality, and enabling active engagement with prospective offtake partners.
Pursuit is well positioned to undertake additional small-batch production as required to meet partner qualification needs and advance strategic discussions. Furthermore, it demonstrates Pursuit’s capability to produce high-purity lithium carbonate suitable for industrial use, with potential to meet battery-grade specifications through additional refinement.
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This article includes content from Pursuit Minerals, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.