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Galan Lithium
Investor Insight
Galan Lithium’s investment appeal is driven by its Hombre Muerto West project, a top 20 global lithium resource featuring high-grade, low-cost lithium brine concentrate, on track for near-term production in Argentina’s renowned mining region.
Overview
Argentina is no stranger to lithium mining. The South American nation is one of three encompassed in the prolific Lithium Triangle, a region that holds more than 60 percent of the world’s lithium resources. Argentina has the world’s second greatest endowment of lithium reserves (17 Mt), concentrating lithium operations in the provinces of Jujuy, Salta and Catamarca.
Demand for lithium is forecasted to grow from approximately 1 Mt LCE in 2024 to around 3Mt in 2030, a compound annual growth rate of around 20 percent. Argentina has committed to $7 billion worth of investment for lithium production with strong growth projected for exports at $1.1 billion in 2023.
Galan Lithium (ASX:GLN,FSX:9CH) is an Australia-based international mining development company focused on its high-quality lithium brine projects in Argentina – Hombre Muerto West and Candelas. The company also holds a highly prospective lithium project in Australia – Greenbushes South.
The company’s flagship Hombre Muerto West (HMW) project hosts some of Argentina’s highest grade and lowest impurity levels with an inventory of 8.6 million tons (Mt) contained LCE @ 859 mg/L lithium, with 4.7 Mt contained LCE @ 866 mg/L Li in the measured category. The 100-percent-owned property is strategically located near Rio Tinto’s recently acquired Arcadium Lithium project, highlighting its position within a highly sought-after lithium region
Galan has signed a commercial agreement with the Catamarca Government supporting the grant of permits to enable the commercialisation of lithium chloride concentrate from HMW to be sold locally or exported internationally.
In August 2024, Galan entered into a memorandum of understanding with Chengdu Chemphys Chemical Industry Co. for an offtake prepayment agreement for the HMW project. Once a definitive agreement is executed, Chemphys will purchase a total of 23,000 tonnes lithium carbonate equivalent, as a lithium chloride product, over the first five years of production from Phase 1 of the HMW project. Chemphys will also provide Galan with an offtake prepayment facility to facilitate the continued development of Phase 1 of the HMW project.
Catamarca Governor Raúl Jalil and Galan Lithium Managing Director Juan Pablo Vargas de la Vega in Catamarca.
In September 2024, Galan successfully completed a capital raising of AU$20 million, including a fully-subscribed Entitlement Offer of $13.3m, reflecting strong shareholder support and confidence in the Company’s strategic direction and the development of its HMW project
In addition to Hombre Muerto West, Galan Lithium’s portfolio includes several strategically positioned projects that complement its flagship asset:
- Candelas Project (Argentina): Located within the Hombre Muerto Basin, this underexplored project boasts a maiden resource estimate of 685kt LCE and is incorporated into Galan’s Phase 4 expansion plans targeting 60ktpa LCE production by 2030.
- Greenbushes South Project (Australia): Situated just 3 kilometres south of the world-class Greenbushes lithium mine, this project offers strong exploration potential for lithium-bearing pegmatites. Galan is progressing land access agreements and holds an exploration license through to 2029.
- James Bay & Ontario Projects (Canada): In 2023, Galan acquired property blocks in Quebec and Ontario located in globally recognized lithium provinces, providing further exploration upside in key jurisdictions.
Backed by a highly experienced management team, Galan is well-positioned to advance these complementary projects while maintaining its primary focus on developing HMW into a world-class lithium production hub.
Company Highlights
- Galan Lithium is an ASX-listed company developing lithium brine projects within South America’s lithium triangle on the Hombre Muerto salar in Argentina.
- The company has two high-quality projects in the works: its flagship Hombre Muerto West (HMW) and the Candelas lithium project, both in Argentina. The two projects combined bring the company’s current total mineral resource estimate to 8.6 million tons lithium carbonate equivalent @ 859 mg/L lithium.
- HMW leverages advantageous positioning near Arcadium Lithium’s project, which is subject to an acquisition by Rio Tinto, highlighting the strategic importance of this high-grade lithium region
- Galan’s lithium Resources are ranked among the top 20 in the world
- HMW sits in the lowest quartile of the global lithium cost curve, leveraging brine extraction advantages for cost efficiency
- High-grade, low-impurity brine concentrate validated by robust offtake interest and market alignment
- Galan’s phased approach and strong stakeholder collaboration mitigate risks and ensure steady progress toward first production in 2025
- The HMW Phase 1 (5.4 ktpa LCE) execution plan is progressing well with the delivery of the first evaporation-ready pond expected in 2024, and production in H2 2025.
- The HMW Phase 2 definitive feasibility study (DFS) delivers compelling economics with 21 kilo-tons per annum (ktpa) lithium carbonate equivalent (LCE) operation at HMW, targeting a high-quality, 6 percent concentrated lithium chloride product (equivalent to 12.9 percent lithium oxide or 31.9 percent LCE) in 2026.
- Galan has signed a commercial agreement with the Catamarca Government enabling the commercialisation of lithium chloride concentrate from HMW to be sold locally or exported internationally.
- Galan is the first mining company to apply for the Argentine ‘RIGI’, an incentive regime for large scale investments
- Galan is transitioning into a major lithium project developer and remains committed to conducting fast-tracked lithium development in its prolific projects with a target production of 60 ktpa LCE from HMW and Candelas by 2030.
Key Projects
Hombre Muerto West Project
The 100-percent-owned Hombre Muerto West project is a large land property that sits on the west coast of the Hombre Muerto salar in Argentina, the second-best salar in the world for the production of lithium from brines. The property also leverages strategic positioning near Arcadium Lithium, recently acquired by Rio Tinto.
Galan has increased HMW’s mineral resource to 8.6 Mt contained LCE @ 859 mg/L lithium (previously 7.3 Mt LCE @852 mg/L lithium), one of the highest grade resource estimates declared in Argentina. HMW’s measured resource is now at 4.7 Mt contained LCE @ 866mg/L lithium. Inclusion of the Catalina tenure adds ~1.3 Mt LCE to the HMW resource.
The pilot plant at HMW has validated the production of lithium chlorine concentrate, adding reagents to eliminate impurities, and generating a concentrate at 6 percent lithium. The plant comprises pre-concentration ponds, a lime plant, a filter press and concentration ponds.
Pilot Plant at HMW
Construction for Phase I has already commenced for 5.4 ktpa LCE production at HMW, and aims to deliver lithium chloride production in H2 2025. The fourth long-term pumping test (PBRS-03-23) results at HMW record an outstanding lithium mean grade of 981 mg/L - the highest reported grade from a production well in the Hombre Muerto Salar.
In October 2024, Galan announced 45 percent project completion with pond construction at 76 percent and project execution is advancing as planned.
A definitive feasibility study (DFS) for phase 2 shows a 20.85 ktpa LCE operation at HMW, targeting high-quality, 6 percent concentrated lithium chloride product (equivalent to 12.9 percent lithium oxide or 31.9 percent LCE) in 2026. The DFS also indicated phase 2 will deliver a post-tax NPV (8 percent) of US$2 billion, IRR of 43 percent and free cash flow of US$236 million per year. Phase 2 provides an exceptional foundation for significant economic upside in phases 3 and 4, targeting 60 ktpa LCE production by 2030.
Galan has entered into a memorandum of understanding with Chengdu Chemphys Chemical Industry Co. for a prepayment offtake agreement. Once a definitive agreement is executed, Chemphys will purchase a total of 23,000 tonnes of lithium carbonate equivalent, as a lithium chloride product, over the first five years of production from Phase 1 of the HMW project.
Chemphys will also provide Galan with a US$40 million offtake prepayment facility to facilitate the continued development of the HMW project.
Galan now has 100 percent full ownership of the Catalina tenement that borders the Catamarca and Salta Provinces in Argentina. The newly secured Catalina tenure has a strong potential to significantly add to the existing HMW resource. The tenure also covers the Catalina, Rana de Sal II, Rana de Sal III, Pucara del Salar, Deseo I and Deceo II tenements.
Greenbushes South Lithium Project
The 100-percent-owned Greenbushes South lithium project is located near Perth, Western Australia, and is three kilometers south of the world-class Greenbushes lithium mine, managed by Talison Lithium. The Greenbushes South tenements can be found along the Donnybrook-Bridgetown Shear Zone geologic structure, which hosts the lithium-bearing pegmatites at the Greenbushes Lithium Mine.
Greenbushes South covers nearly 315 square kilometers, and hosts elevated pathfinder elements with well-defined anomalies adjacent to the property.
Management Team
Richard Homsany - Non-executive Chairman
Richard Homsany is an experienced corporate lawyer and has extensive board and operational experience in the resources and energy sectors. He is the executive chairman of ASX-listed uranium exploration and development company Toro Energy Limited, executive vice-president of Australia of TSX-listed uranium exploration company Mega Uranium and the principal of Cardinals Lawyers and Consultants, a boutique corporate and energy and resources law firm. He is also the chairman of the Health Insurance Fund of Australia (HIF) and listed Redstone Resources and Central Iron Ore and is a non-executive director of Brookside Energy Homsany’s past career includes time working at the Minera Alumbrera Copper and Gold mine located in the Catamarca Province, northwest Argentina.
Juan Pablo (‘JP’) Vargas de la Vega - Founder and Managing Director
Juan Pablo Vargas de la Vega is a Chilean/Australian mineral industry professional with 20 years of broad experience in ASX mining companies, stockbroking and private equity firms. JP founded Galan in late 2017. He has been a specialist lithium analyst in Australia, has also operated a private copper business in Chile and worked for BHP, Rio Tinto and Codelco.
Daniel Jimenez - Non-executive Director
Daniel Jimenez is a civil and industrial engineer and has worked for a world leader in the lithium industry, Sociedad Química y Minera de Chile, for over 28 years. He was the vice-president of sales of lithium, iodine and industrial chemicals where he formulated the commercial strategy and marketing of SQM’s industrial products and was responsible for over US$900 million worth of estimated sales in 2018.
Terry Gardiner - Non-executive Director
Terry Gardiner has 25 years’ experience in capital markets, stockbroking and derivatives trading. Prior to that, he had many years of trading in equities and derivatives for his family accounts. He is currently a director of boutique stockbroking firm Barclay Wells, a non-executive director of Cazaly Resources, and non-executive chairman of Charger Metals NL. He also holds non-executive positions with other ASX-listed entities.
María Claudia Pohl Ibáñez - Non-executive Director
María Claudia Pohl Ibáñez is an industrial civil industrial engineer with extensive experience in the lithium production industry. Until recently, she worked for world leader in the lithium industry Sociedad Química y Minera de Chile (NYSE:SQM, Santiago Stock Exchange:SQM-A, SQM-B) for 23 years, based in Santiago, Chile. During her time at SQM, she held numerous senior leadership roles including overseeing lithium planning and studies. Ibáñez brings significant lithium project evaluation and operational experience whilst joining the board at a critical juncture in Galan’s journey to becoming a significant South American lithium producer. Since leaving SQM in late 2021, Ibáñez has been managing partner and general manager of Chile-based Ad-Infinitum, a process engineering consultancy, with a specific focus on lithium brine projects under study and development, and the associated project evaluations.
Ross Dinsdale - Chief Financial Officer
Ross Dinsdale has 18 years of extensive experience across capital markets, equity research, investment banking and executive roles in the natural resources sector. He has held positions with Goldman Sachs, Azure Capital and more recently he acted as CFO for Mallee Resources. He is a CFA charter holder, has a Bachelor of Commerce and holds a Graduate Diploma in Applied Finance.
Laguna Verde Resource Update
CleanTech Lithium PLC ("CleanTech Lithium" or "CleanTech" or the "Company") (AIM: CTL, Frankfurt:T2N), an exploration and development company advancing sustainable lithium projects in Chile, announces an updated resource estimate for its Laguna Verde project that has been included by the Chile Government as one of the six salar systems to be prioritised for development.
Highlights:
- The mineral resource estimate is updated from that reported in the RNS of 17 July 2023 based on additional exploration and pumping tests conducted in 2024
- The JORC (2012) compliant estimate was calculated by Montgomery & Associates ("Montgomery´"), a leading hydrogeological consultant highly experienced in lithium brine resource estimation
- The total updated resource is 1.63 million tonnes of Lithium Carbonate Equivalent (LCE), at a grade of 175 milligrams per litre (mg/l) lithium, of which 0.81 million tonnes is in the Measured + Indicated category at a grade of 178 mg/l lithium
- This current resource estimate is based on the proposed polygon area included in the Company´s recently submitted application for a Special Operating Contract for Lithium ("CEOL")
- The previous 2023 estimate which totalled 1.77 million tonnes LCE at an average grade of 200mg/l lithium was based on the previously proposed CEOL area under the old application regime that was larger covering the entire estimated resource of the basin.
- Lithium concentrations obtained in the 2024 campaign were below the average grade of other exploration wells impacting the average lithium grade of the resource
- Montgomery recommends three additional drillholes in the southwest, north and northeast to potentially increase the resource based on completed geophysics
- This updated measured and indicated resource estimate will be used in the pre-feasibility study (PFS) which is intended to underpin a maiden reserve estimate for the Laguna Verde project
Steve Kesler, Executive Chairman, CleanTech Lithium said: "The updated JORC-compliant resource estimate for the Laguna Verde project, independently determined by Montgomery & Associates, confirms a robust and significant resource of 1.63 million tonnes of Lithium Carbonate Equivalent (LCE), with 0.81 million tonnes in the Measured and Indicated category at an average grade of 178 mg/l lithium. Now with greater confidence in the resource, this comprehensive evaluation will form the basis for the Pre-Feasibility Study, scheduled for end of this quarter. This positions Laguna Verde as a highly promising direct lithium extraction (DLE) based project in the lithium brine sector and as a contributor to Chile's future as a leading lithium producer for the global EV and battery market."
Further Details:
Project Background
The Laguna Verde corresponds to a lithium brine deposit which is found in the Atacama Region of Chile, near the Chile - Argentina border. The project consists of mining concessions located approximately 192 kilometres (km) northeast of Copiapó. The concession area is readily accessible via a network of paved roads from the closest major city Copiapó, following the route (R-31) for approximately 275 km. The Laguna Verde Basin has elevations that vary between 4,330 to 4,500 metres above sea level (masl), where the low altitude valley area is approximately 20 km long and 4 km wide.
Figure 1: Regional Location Map and Project Area
The previous resource estimate for Laguna Verde was reported in July 2023, based on five wells completed in 2022 and 2023. A drill programme was undertaken in 1H 2024 which completed two infill wells in the first half of 2024 along with three observation wells drilled to support observations during pumping tests. The location of wells completed from 2022 - 2024 are shown in Figure 2, along with three recommended wells to potentially increase the resource.
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Figure 2: Existing and Recommended Exploration Wells at Laguna Verde
Resource Summary
Montgomery was engaged to support the 2024 field programme at Laguna Verde and based on the information obtained to provide an updated resource estimate and technical report for the project. The technical report has been prepared to conform to the regulatory requirements of the JORC Code (2012). Mineral Resources are also reported in accordance with the Canadian Institute of Mining, Metallurgy and Petroleum (CIM) Best Practice Guidelines (CIM, 2012).
The breakdown of the resource categories comprising the total resource estimate and the comparison with the previous 2023 estimate is shown below in Table 1. The previous 2023 estimate which totalled 1.77 million tonnes LCE at an average grade of 200 mg/l Lithium was based on a proposed CEOL area that was larger and covered the entire estimated resource of the basin, whereas the updated 2025 estimate is based on the Company's preferential licences and proposed polygon area included in the Company´s recently submitted application for a CEOL. As a comparison, the current resource estimate for the basin (on the same basis of larger CEOL area) would be 1.95 million tonnes LCE.
Lithium concentrations obtained in the 2024 campaign were below the average grade of other exploration wells impacting the average lithium grade. Although slightly lower than the lithium grade used in the 2023 scoping study a grade of 175 mg/l lithium is very suitable for the DLE process and is well above the cut-off grade of 100 mg/l lithium.
Table 1: Updated JORC Resource Estimate 2025 Compared to 2023 Resource Estimate
Special Operating Contract for Lithium (CEOL)
In April 2024 the Chilean government announced, as part of its National Lithium strategy, the intention to make available to the private sector CEOLs over 26 salt flats. As of September 2024, the Chilean government has prioritised six salt flats for the CEOL award process, one of which is Laguna Verde. The CEOL grants exclusive rights to exploit lithium and only one CEOL is to be granted per saline system. The Government also published a polygon CEOL area for each of the prioritised salt flats but clarified that this polygon area is referential and could be modified following community dialogue and with agreement of the applicant. The Government also announced that the CEOL could be awarded in a streamlined procedure that allowed direct negotiation with Government rather than through a public tender provided that a number of criteria were met. One criteria was that the applicant must demonstrate that it holds at least 80% of the preferential mining licences in the CEOL polygon.
CleanTech Lithium has proposed a modification to the published CEOL polygon in its CEOL application (shown in Figure 3) which has been developed to ensure that over 80% of the proposed CEOL polygon area is preferential mining licenses held by CleanTech. The CEOL application by CleanTech includes letters of support from indigenous communities for the proposed modified CEOL polygon.
Figure. 3: CleanTech´s Preferential Licences and Proposed CEOL Extent
Table 2 provides a breakdown of the current Laguna Verde resource estimate by resource category and by separating the resource attributable to the preferential licences held by the Company, and the provisional resources in licences held by third parties within the proposed CEOL area. The combined resource would be attributable to the Company provided the CEOL is awarded to CleanTech for the proposed area (Figure 3).
Mineral resources are not mineral reserves and do not have demonstrated economic viability. Furthermore, not all mineral resources can be converted into mineral reserves after application of the modifying factors, which include but are not limited to mining, processing, economic, and environmental factors.
Table 2: Mineral Resource Estimate for the Laguna Verde Project (Effective January 3, 2025)
Resource Estimation Method
The updated resource estimate consists of Measured, Indicated and Inferred resources. A detailed geological and resource block model was creating in Leapfrog (Seequent, 2023) using obtained well lithologies, discrete-depth values for brine chemistry, drainable porosity values, and geophysical profiles. Lithium concentrations were interpolated using ordinary kriging, specific yield was assigned to each hydrogeological unit, and the mass calculations within the resource block model were undertaken using the Leapfrog Edge extension. A cut-off grade of 100mg/l lithium was conservatively applied based on the Laguna Verde scoping study capital and operating costs.
Consistent with the Houston et al. (2011) recommendations for immature salars, a 1.25 km radius circle around the well was used to estimate a Measured resource, a 2.5 km radius circle around the well was used to estimate an Indicated resource, while a maximum 5 km radius circle was used as the areal extent to estimate an Inferred resource. Depending on the confidence in the sampling procedures and presence of volcanic outcrops, some resource polygons were limited in extent.
Surface Rights
In Chile, Surface Access Rights should be granted or imposed on a mining concession before the extraction starts. CleanTech Surface Access Rights request was received by Bienes Nacionales on June 16, 2023, in the name of Atacama Salt Lakes SpA and is currently in process. The requested area totals 11,136 hectares and covers the project scoping study planned installations (Ad Infinitum, December, 2022). The requested area can be seen in Figure 4.
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Figure 4. CleanTech's Requested Surface Right Area
Water Rights
There are surface water courses that contribute to the Laguna Verde. The Peñas Blanca River flows from west to east and has a continuous flow throughout the year, while to the east of the Laguna Verde, there are intermittent surface water flows. Freshwater exploration wells also exist in the western portion of the basin with demonstrated pumping rates that exceed 40 L/s (Hydro Exploraciones, 2020). Furthermore, a conceptual water balance of the basin recharge has been prepared and indicates that the average estimated freshwater recharge in the Laguna Verde Basin corresponds to 570 l/s (M&A, 2024a). Potential sources of freshwater for the Project include the application for groundwater rights in the basin or the purchase of water rights from third parties (CleanTech, 2024).
Geological Setting
The regional geology of the Project area is mainly characterised by volcanic and sedimentary sequences. Laguna Verde is an immature clastic salar basin, with the lagoon effectively corresponding to the evaporative "salar nucleus". The Project consists of a lithium-rich aquifer found below the lagoon and in the surrounding sediments. The brine is mainly hosted in volcaniclastic sediments and tuff beneath the lagoon with a moderate hydraulic conductivity.
The Laguna Verde stratigraphy is characterised by a band of tuffs with different grain sizes, consolidation / welding, type of clasts, and locally interbedded volcaniclastic sediments. This unit presents an average thickness of 400 metres and overlays the lower volcanic rock (mainly andesite) identified in drillholes and the gravity survey, which has some fracturing and a low drainable porosity. Furthermore, a fault zone which has highly fractured and brecciated rock was encountered along the southern portion of Laguna Verde. In all, the brine aquifer was characterised up to a maximum depth of 650 metres (LV07).
Figure 5 shows the locations for two NW-SE hydrogeological cross sections, and Figure 6 shows the sections with the hydrogeological units modelled in the Leapfrog software.
Figure 5: Hydrogeological Cross Section Locations
Figure 6: Hydrogeological Cross Sections
Exploration
CleanTech engaged Geodatos to conduct Transient ElectroMagnetic (TEM) geophysical surveys at Laguna Verde during the periods April to May 2021 and again in March 2022. The objective of these surveys was to determine the electrical properties of the subsurface sediments to provide information about the stratigraphy and water quality of the hydrogeologic units in the area. The surveys also helped determine the water table level and helped confirm the presence of brine.
A gravity survey was performed by Geodatos between the end of December 2022 and early January 2023. The survey campaign included TEM measurements and two extra profiles. One hundred and eleven (111) gravity stations, arranged in four lines surrounding the lagoon area, as well as fourteen (14) TEM stations, arranged in two lines, were surveyed with a 400-metre separation.
Figure 7: Laguna Verde Surveyed Gravity and TEM Stations
Drilling
An initial drilling campaign was conducted in 2022 and 2023 with four diamond drill holes (DDH) (LV01, LV02, LV03 and LV04) and two rotary wells (LV05 and LV06) as shown in Figure 2. A second campaign was conducted in 2024, with Montgomery personnel, where two exploration boreholes were drilled (LV07 and LV11) with monitoring wells for subsequent pumping tests at LV05 and LV06. Drilling at boreholes LV07 and LV11 reached a final depth of 650 metres below land surface (mbls) and 412.8 mbls, respectively. A pumping test at LV05 was initially conducted in the first campaign and included a pre-test and a 48-hour constant discharge test on April 8, 2023. During the 2024 campaign, a step-discharge and a constant-discharge were conducted at LV05, but due to adverse weather conditions, a long-term constant rate test could not be completed. During the first campaign, a pre-test and a constant discharge test were conducted at LV06 and a long-term (7-day) constant rate test was conducted during the 2024 campaign.
Table 3: Location and Depth Drilled for Years 2022, 2023 and 2024 Exploration Wells
Well | Drilling Method | Northing | Easting | Total Depth Drilled (m) | Year Drilled |
LV01 | DDH | 7,027,088 | 549,432 | 474 | 2021-2022 |
LV02 | DDH | 7,024,396 | 553,992 | 339 | 2022 |
LV03 | DDH | 7,028,434 | 549,980 | 547.5* | 2022 |
LV04 | DDH | 7,024,390 | 556,826 | 311 | 2022 |
LV05 | Rotary | 7,027,908 | 550,972 | 434.6 | 2022-2023 |
LV06 | Rotary | 7,026,004 | 555,912 | 405 | 2023 |
LVM05a | DDH | 7,027,908 | 550,921 | 221.50 | 2024 |
LVM05b | DDH | 7,027,951 | 550,946 | 41.5 | 2024 |
LVM06c | DDH | 7,026,032 | 555,959 | 40 | 2024 |
LV07 | DDH | 7,025,296 | 552,561 | 650 | 2024 |
LV11 | DDH | 7,024,793 | 555,582 | 412.8 | 2024 |
*LV03 was drilled as an angled borehole with an azimuth of 120 degrees and dip of 60 degrees.
Figure 8: Drilling at LV07 in 1H 2024
Brine Sampling Collection and Analysis
Various methods were used to obtain brine samples during and after the exploration drilling program:
- Packer sampling
- Airlift sampling
- Double-valved disposable bailer sampling
- Double-valved electric bailer sampling
- Hydra-sleeve sampling
- Brine sampling during pumping tests
The brine sampling program included standard quality assurance/quality control (QA/QC) elements such as including duplicate brine and blank samples in bine sample batches sent to the laboratory. Formal traffic reports and chain of custody documents were prepared for every sample obtained and submitted for laboratory analysis. In the opinion of the Competent Person (CP), sample preparation, security, and analytical procedures were acceptable for this stage of the Project and results from the laboratory analyses are considered adequate.
Drill Core Sampling and Specific Yield Estimation
During the first campaign, core samples were obtained every 10 metres from the four drillholes and a total of 122 core samples were obtained at each drillhole and submitted to the DBS&A Laboratory in New Mexico, USA for Relative Brine Release Capacity (RBRC) tests. During the second campaign (2024), 33 core samples were obtained from LV07 and LV11 and were sent to GeoSystem Analysis (GSA) laboratory in Tucson, USA, for analysis.
Figure 9: Example of Drill Core from Exploration Borehole LV11 (132 to 136m)
Laboratory values for drainable porosity were obtained from 145 successfully analysed core samples. Core samples underwent Relative Brine Release Capacity (RBRC) tests. The drainable porosity (i.e., specific yield) measurement procedure involved saturating the core sample with a brine solution and placing them in test cells where a pressure differential was applied and the proportion of brine which can be drained was estimated. In the opinion of the CP, sample preparation, security, and analytical procedures were acceptable and results from the laboratory analyses are considered adequate for resource estimation. The 2023 resource estimate included drainable porosity measurements which were increased by a secondary porosity term calculated from rock quality designation logged during drilling. This current resource update uses drainable porosity measurements from the laboratory, without modification, which results in lower drainable porosities than used in the 2023 resource estimate.
The average drainable porosity values assigned to each hydrogeologic unit used to estimate the lithium resource are given in Table 3. Due to its smaller dataset, a simpler analysis was undertaken for drainable porosity to assign representative values by hydrogeological unit; constant (average) values were assigned to each hydrogeologic unit in the resource model, and drainable porosity values were not interpolated.
Table 3: Assigned Drainable Porosity Values for Laguna Verde Hydrogeological Units
Hydrogeological Unit | Average Drainable Porosity* | N° Samples |
Unconsolidated Tuff and Coarse Tuff | 6% | 102 |
Consolidated Ash Tuff | 3% | 14 |
Brecciated and Fractured Rock | 5% | 9 |
Lower Volcanic Rock | 1% | 5 |
Upper Alluvium and Colluvium | 10%** | 0 |
Surficial Volcanic Deposits | 3%*** | 0 |
* Rounded arithmetic average
** Assumed theoretical value
*** The drainable porosity of the consolidated ash tuff unit was assumed due to its lithological similarity. The number of blocks that correspond to the consolidated ash tuff within the resource block model are negligible compared to the rest of the hydrogeological units.
Recommendations
Currently, the drilling and testing of a reinjection well is planned for the first quarter of 2025. In terms of the resource, three additional diamond drillholes in the southwest, north, and northeast are recommended to potentially expand the resource volume (Figure 2; LV08, LV09, and LV10) based on the conducted geophysics. During the drilling of those three additional diamond drillholes, depth-specific brine and drainable porosity sampling are recommended with the corresponding QA/QC measures.
Block Model Results and Verification
Figure 10 presents the shallowest interpolated concentrations of the brine body which were mapped to the Leapfrog block model; as can be seen, grades are highest in the western portion of Laguna Verde, whereas the eastern portion represents a zone of heightened recharge with diluted grades. The bottom of the block model was limited to the deepest well (LV07), and the horizontal extent of the block model was limited to the CleanTech concessions and potential of the proposed CEOL area. Laboratory results for lithium concentrations from depth specific brine and pumping test samples collected from the wells were incorporated directly into the model. Ordinary Kriging was used for the interpolation of lithium concentrations within the block model.
Figure 10: Shallow Lithium Concentration Distribution and Proposed CEOL Outline
The resource block model was subsequently validated by visual inspection and comparison of the measured and block model concentrations. Swath plots were also utilized, which compare the average measured and interpolated values along distinct profiles of the block model.
Competent Persons Statement
The following professionals act as competent persons, as defined in the AIM Note for Mining, Oil and Gas Companies (June 2009) and JORC Code (2012):
Mr. Michael Rosko is a Registered Member of the Society for Mining, Metallurgy and Exploration, member #4064687. He graduated from the University of Illinois with a bachelor's degree in geosciences in 1983, and from the University of Arizona with a master's degree in geosciences in 1986. Mr. Rosko is a registered professional geologist in the states of Arizona (#25065), California (#5236), and Texas (#6359). Mr. Rosko has practiced his profession for 38 years and has been directly involved in design of numerous exploration and production well programs in salar basins in support of lithium exploration, and estimation of the lithium resources and reserves for many other lithium projects in Argentina and Chile.
Mr. Brandon Schneider is employed as a Senior Hydrogeologist at M&A. He graduated from California Lutheran University in 2011 with a Bachelor of Science degree in Geology (with Honors) and obtained a Master of Science in Geological Sciences (Hydrogeology focus) from the University of Notre Dame in 2013. He is a professional in the discipline of Hydrogeology and a Registered Professional Geologist in Arizona (#61267) and SME Registered Member (#4306449). He has practiced his profession continuously since 2013. His relevant experience includes: (i) from 2013 to 2016, consulting hydrogeologist specializing in hydrogeological characterizations, aquifer test analyses, groundwater modeling, and pumping well optimization for mining projects and sedimentary basins in Arizona, United States; (ii) since 2017, consulting hydrogeologist in Chile specializing in lithium brine projects in Argentina and Chile with experience in brine exploration, lithium brine resource and reserve estimates, resource and reserve reporting, variable density flow and transport modeling, and optimization of pumping.
For further information contact: | |
CleanTech Lithium PLC | |
Steve Kesler/Gordon Stein/Nick Baxter | Jersey office: +44 (0) 1534 668 321 Chile office: +56 9 312 00081 |
Or via Celicourt | |
Celicourt Communications Felicity Winkles/Philip Dennis/Ali AlQahtani | +44 (0) 20 7770 6424 |
Beaumont Cornish Limited (Nominated Adviser) Roland Cornish/Asia Szusciak | +44 (0) 20 7628 3396 |
Fox-Davies Capital Limited (Joint Broker) Daniel Fox-Davies | +44 (0) 20 3884 8450 |
Canaccord Genuity (Joint Broker) James Asensio | +44 (0) 20 7523 4680 |
Beaumont Cornish Limited ("Beaumont Cornish") is the Company's Nominated Adviser and is authorised and regulated by the FCA. Beaumont Cornish's responsibilities as the Company's Nominated Adviser, including a responsibility to advise and guide the Company on its responsibilities under the AIM Rules for Companies and AIM Rules for Nominated Advisers, are owed solely to the London Stock Exchange. Beaumont Cornish is not acting for and will not be responsible to any other persons for providing protections afforded to customers of Beaumont Cornish nor for advising them in relation to the proposed arrangements described in this announcement or any matter referred to in it.
Notes
CleanTech Lithium (AIM:CTL, Frankfurt:T2N, OTCQX:CTLHF) is an exploration and development company advancing lithium projects in Chile for the clean energy transition. Committed to net-zero, CleanTech Lithium's mission is to become a new supplier of battery grade lithium using Direct Lithium Extraction technology powered by renewable energy.
CleanTech Lithium has two key lithium projects in Chile, Laguna Verde and Viento Andino, and exploration stage projects in Llamara and Arenas Blancas (Salar de Atacama), located in the lithium triangle, a leading centre for battery grade lithium production. The two most advanced projects: Laguna Verde and Viento Andino are situated within basins controlled by the Company, which affords significant potential development and operational advantages. All four projects have good access to existing infrastructure.
CleanTech Lithium is committed to utilising Direct Lithium Extraction with reinjection of spent brine resulting in no aquifer depletion. Direct Lithium Extraction is a transformative technology which removes lithium from brine with higher recoveries, short development lead times and no extensive evaporation pond construction. www.ctlithium.com
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This article includes content from Cleantech Lithium PLC, 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.
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