CleanTech Lithium (OTCQB:CTLHF)

CleanTech Lithium – Operations Update

CleanTech Lithium PLC ("CleanTech Lithium" or "CTL" or the "Company") Positive Pump Test Results Support Projects Brine Extraction Model Brine Reinjection Test to Commence, First in Chile´s Lithium Sector

CleanTech Lithium PLC (AIM:CTL, Frankfurt:T2N, OTC:CTLHF), an exploration and development company advancing next-generation sustainable lithium projects in Chile for the EV transition, shares results from important hydrogeological work with pump test programmes undertaken at Laguna Verde and Francisco Basin. This is followed by a brine reinjection test to commence at Laguna Verde, a first for the lithium sector in Chile.

Highlights:

· Fixed duration pump tests completed at Laguna Verde (wells LV05 and LV06) and at Francisco Basin (FB01).

· Pump tests provide key data for hydrogeological models including aquifer transmissivity, which is used to model bore field flow rates for brine extraction in a commercial operation.

· Calculated transmissivity from the LV05 and LV06 pump tests support the bore field flow rates of 30L/s that were modelled in the Laguna Verde scoping study announced in January 2023.

· The FB01 pump test recorded a high transmissivity that corresponds to a modelled flow rate of approximately 80L/s in a well designed for an operation stage project.

· This high flow rate will provide a positive input into the Francisco Basin Scoping Study which is progressing well.

· The first of a two-stage brine reinjection test will commence imminently at Laguna Verde.

· Brine reinjection into aquifers is a key advantage to Direct Lithium Extraction (DLE) operations and CleanTech Lithium is leading the sector in Chile with this test-work.

· An update will be released shortly on the drill programme progress at all three projects, including the laboratory assay results for the 2023 programme at Laguna Verde, the final batch of which is expected to be received next week.

Aldo Boitano, Chief Executive Officer, of CleanTech Lithium PLC, said:

"I am delighted at the progress we are making on our extensive work programmes across our three different basins.

"The pump test results at Laguna Verde and especially at Francisco Basin surpassed expectations and with the commencement of the first-ever reinjection test in Chile just round the corner, this could be a game-changing moment for Chile´s lithium sector, a considerable move forward for the Company and the wider lithium industry to produce lithium with minimal environmental impact; what we refer to as 'green' lithium.

We will provide another update shortly on our drill programme results and progress at all three of our projects, which will be followed by updating the market on JORC upgrades from Laguna Verde, as well as JORC upgrades and the Scoping Study for Francisco Basin."

Further Information

Positive Results from Pump Test Programmes

CTL is in the process of building a hydrogeological model for the operating stage of the projects that will include the modelling of the extraction bore field. Pump tests provide key data for the hydrogeological model and are important milestones for brine-based resource projects.

Laguna Verde:

At Laguna Verde, fixed duration pump tests were undertaken at LV05 and LV06. The wells are cased with a diameter of 8 inches which constrains the size of the pump and therefore the flow rate used in the pump test. At LV05, a flow rate of 18L/s was used and based on the aquifer response, which is measured by the drawdown in the well and the recovery rate recorded in the well and piezometers located at 50m and 240m from the well, the aquifer transmissivity is calculated. At LV06 the test was run at a flow rate of 14L/s. Both wells recorded >80% recovery within 30 minutes and full recovery within 36 hours.

Based on the flow rate and aquifer response a transmissivity for LV05 and LV06 was calculated as 27.1 m2 and 22.6m2 per day respectively. Based on the calculated transmissivity, the modelled flow rate for a commercial bore with a diameter of 14 inches is expected to be approximately 30L/s. This is in line with the flow rate of extraction bores used in the completed Scoping Study for Laguna Verde, announced in January 2023, providing important confirmation of the projects´ bore field extraction capacity.

Figure 1: LV05 Pump Test in Progress

Francisco Basin:

At the Francisco Basin project, a fixed duration pump test has been completed at FB01, a well cased with a diameter of 8 inches, with a flow rate of 19L/s utilised for the initial test. The aquifer drawdown was minimal and the recovery rate rapid, resulting in a high transmissivity calculation of 226m2 per day. Based on the calculated transmissivity of FB01, the modelled flow rate for a commercial bore with a diameter of 14 inches is expected to be approximately 80L/s. The aquifer at Francisco Basin is formed by multiple sand units confined by clay units, which is geologically interpreted to have a high potential aquifer transmissivity. This is a very positive result, well exceeding expectations, and will feed into the Francisco Basin Scoping Study that is currently advanced, with a comparatively lower number of bores required to extract the required volume of feed brine.

Figure 2: Pictures of FB01 Pump Test in Progress

Reinjection Programme to Commence - The First Reinjection Test in the Chilean Lithium Sector

For a DLE based project, the other key element of the project's hydrogeological model is the reinjection of spent brine into the subsurface aquifers of the basin. At Laguna Verde, and at Francisco Basin, the Company has a dominant tenure position in the basin allowing for extraction and reinjection of brine in different zones of the basin. In the Scoping Study completed for the Laguna Verde project two sites were proposed for reinjection bore fields as shown in Figure 3. The primary basis for site selection is to limit the distance and elevation difference between the reinjection site and the DLE process plant, where spent brine will be pumped from, and a favourable site geology for subsurface sediments that will host the re-injection brine volume while providing a geological separation with the resource area.

The Company´s primary hydrogeology consultant Gestion Ambiental SA (SGA), an international firm which operates across South America, has designed a two-stage brine reinjection test at Laguna Verde with the first stage planned to be undertaken in the coming weeks. This will involve constant flow rate tests at different depths and pressures. Brine from LV06, which is on the east side of the basin, will be injected into well LV05, on the north-west side of the basin in the relative vicinity of the area of the basin where reinjection is planned, as shown in Figure 3. Downhole geophysics have been completed at LV05 and the well is expected to have a representative geology of the planned reinjection site.

Figure 3: Map of Stage 1 Test Bore Versus Planned Reinjection Sites

The second stage consists of long-term tests, in wells located at the planned reinjection site, to provide valid hydrogeological simulations of the brine reinjection operation. This data will provide important data for the hydrogeological model and the project's environmental impact assessment, one of the key final regulatory approvals required for a project. To the Company´s knowledge, this will be the first brine reinjection programme undertaken in the Chilean Lithium sector. Major lithium producer Albemarle recently announced that it would start its first reinjection programme at Salar de Atacama, the world´s largest lithium production site, at the end of this year. CTL aims to continue to be the leader in developing a brine reinjection model, a key to a successful DLE based project, in Chile.

For further information contact:


Notes

CleanTech Lithium (AIM:CTL, Frankfurt:T2N, OTC:CTLHF) is an exploration and development company, advancing the next generation of sustainable lithium projects in Chile. The Company's mission is to produce material quantities of battery-grade lithium by 2026, with near-zero carbon emissions with minimal impact on the environment, offering the EV market a green lithium supply solution.

CleanTech Lithium has three prospective lithium projects - Laguna Verde, Francisco Basin and Llamara projects located in the lithium triangle, the world's centre for battery grade lithium production. They are situated within basins entirely controlled by the Company, which affords significant potential development and operational advantages. The projects have direct access to excellent infrastructure and renewable power.

CleanTech Lithium is committed to using renewable power for processing and reducing the environmental impact of its lithium production by utilising Direct Lithium Extraction. Direct Lithium Extraction is a transformative technology which only adsorbs lithium from brine, with higher recoveries and purities. The method offers short development lead times, low upfront capex, with no extensive site construction and no evaporation pond development so there is no water depletion from the aquifer or harm to the local environment.

Source

Click here to connect with CleanTech Lithium PLC (AIM:CTL, Frankfurt:T2N, OTC:CTLHF) to receive an Investor Presentation

CTLHF
CleanTech Lithium

CleanTech Lithium Investor Kit

  • Corporate info
  • Insights
  • Growth strategies
  • Upcoming projects

GET YOUR FREE INVESTOR KIT

The Conversation (0)
CleanTech Lithium

CleanTech Lithium


Keep reading...Show less

Premium lithium projects located in established mining districts to meet battery and EV demand

CleanTech Lithium PLC Announces Notice of AGM

CleanTech Lithium PLC Announces Notice of AGM

 

CleanTech Lithium PLC Notice of Annual General Meeting

 

CleanTech Lithium PLC (AIM:CTL)(Frankfurt:T2N)(OTCQX:CTLHF) ("CleanTech Lithium" or the "Company"), an exploration and development company advancing sustainable lithium projects in Chile, will hold its Annual General Meeting ("AGM") at the offices of the Company at de Carteret House, 7 Castle Street, St Helier JE2 3BT on 26 November 2024 at 11:00AM GMT

News Provided by ACCESSWIRE via QuoteMedia

Keep reading...Show less
CleanTech Lithium PLC Announces Interim Results

CleanTech Lithium PLC Announces Interim Results

 

Interim Results for six-month period ending 30 June 2024

 

CleanTech Lithium PLC (AIM:CTL)(Frankfurt:T2N)(OTCQX:CTLHF), an exploration and development companyadvancing sustainable lithium projects in Chile for the clean energy transition, is pleased to announce its unaudited Interim Results for the six-month period ended 30 June 2024 ("1H 2024" or "the Period").

News Provided by ACCESSWIRE via QuoteMedia

Keep reading...Show less
CleanTech Lithium PLC Announces CEOL Update

CleanTech Lithium PLC Announces CEOL Update

 

Chilean Government prioritises Laguna Verde for CEOL

 

CleanTech Lithium PLC (AIM:CTL)(Frankfurt:T2N)(OTCQX:CTLHF), an exploration and development company advancing lithium projects in Chile for the clean energy transition, reports an announcement by the Chilean Government on the Expressions of Interest ("RFIs") process under which the Company made submissions in June 2024. This is part of the process for the awarding of a Special Lithium Operating Contract ("CEOL") to enter production

News Provided by ACCESSWIRE via QuoteMedia

Keep reading...Show less
CleanTech Lithium PLC Announces Community Support for Laguna Verde Project

CleanTech Lithium PLC Announces Community Support for Laguna Verde Project

 

Indigenous community leader publicly endorses Laguna Verde project at key mining seminar in Santiago, Chile

 

CleanTech Lithium PLC (AIM:CTL)(Frankfurt:T2N)(OTCQX:CTLHF), an exploration and development company advancing sustainable lithium projects in Chile, participated in the Centre for Copper and Mining Studies ("CESCO") seminar in Santiago, a prominent annual seminar for the mining sector in Chile, and received public support from the local indigenous community for its Laguna Verde project. Executive Chairman and Interim CEO, Steve Kesler, presented and reinforced the Company is ready to begin project construction by 2026 upon the granting of a Special Lithium Operating Contract ("CEOL") by the Chilean Government

News Provided by ACCESSWIRE via QuoteMedia

Keep reading...Show less
CleanTech Lithium PLC Announces Transfer of Loan Notes at Regal Funds

CleanTech Lithium PLC Announces Transfer of Loan Notes at Regal Funds

 

CleanTech Lithium PLC (AIM:CTL)(Frankfurt:T2N)(OTCQX:CTLHF), an exploration and development company advancing sustainable lithium projects in Chile, announces the transfer of AUD Loan Notes (Loan Notes) from one Regal Funds1 associate to another Regal Funds associate

 

On 1 July 2024, the Company announced that Regal Tactical Credit Fund (RTCF), of which Regal Funds Management Pty Ltd (RFM) is a trustee, subscribed for A$3,000,000 of the Loan Notes. The Company has recently received a request by RFM to transfer the beneficial ownership of the Loan Notes and Warrants held by RTCF to Regal Emerging Companies Opportunities Fund Pty Ltd (RECOF), of which RFM is also a trustee, to which it has consented

News Provided by ACCESSWIRE via QuoteMedia

Keep reading...Show less
Digital hexagons overlay construction site with an excavator and cloudy sky in the background.

Ekin Ober on Why AI Could Be Mining’s Most Valuable Tool Yet

For Ekin Ober, bringing generative artificial intelligence (AI) to the critical metals sector through her work at Aethos Labs wasn’t just about technological innovation — it reshaped how she thinks about strategy and sustainability in mining.

Now a principal at Kinterra Capital, Ober applies that broad, cross-disciplinary lens to investment decisions, emphasizing the importance of digital fluency, stakeholder alignment and long-term viability.

Her experience helps her identify operational bottlenecks and social license challenges early — essential in guiding assets like nickel and copper projects from concept to production.

Keep reading...Show less
Stacks of US$100 bills with upward-pointing wooden arrows.

Chris Berry: The West Must Invest in Refinement Now or Fall Further Behind

China’s grip on the battery metals sector has drawn increasing scrutiny in recent years as nations confront growing concerns around supply chain risk and resource security.

Through a blend of domestic output and aggressive overseas investment, particularly in Africa and South America, Chinese companies now command a significant share of upstream supply.

The country is responsible for roughly 60 percent of global rare earths production and controls over 70 percent of cobalt supply through its stakes in mines across the Democratic Republic of Congo.

Keep reading...Show less
Magnifying glass focusing on the Albemarle website logo.

Albemarle's Commitment to Sustainability Shines in New Report

As global demand for critical minerals intensifies, Albemarle (NYSE:ALB) continues to position itself as a global leader not only in lithium production but also in sustainable practices.

In its newly released 2024 sustainability report, titled “Values-Led, Purpose-Driven,” the company underscores its commitment to reducing its environmental footprint across six continents, supporting global supply chains and promoting human rights across operations.

From cutting freshwater intensity at its Chilean operations by 28 percent to procuring 24 percent of its electricity from renewable sources, Albemarle is striving to grow its energy storage business while keeping carbon emissions flat, as it translates ESG goals into action.

Keep reading...Show less
Metallic battery with a world map etched on it, against a dark background.

3 Key Themes from Fastmarkets' 2025 Lithium Supply & Battery Raw Materials Event

Market volatility, Chinese control, supply chain risk mitigation and financing emerged as some of the most prevalent themes at the 2025 Fastmarket’s Lithium Supply Battery Raw Materials (LBRM) conference in Las Vegas.

The event, which is in its 17th year, drew a crowd of roughly 1000 delegates, industry experts and analysts, to discuss the current landscape and future projections of the battery materials sector.

During his opening remarks, Fastmarkets CEO Raju Daswani highlighted the growth and maturation the battery raw materials sector has experienced.

Keep reading...Show less
Metals Australia (ASX:MLS)

Metals Australia


Keep reading...Show less
CleanTech Lithium

CleanTech Lithium Investor Kit

  • Corporate info
  • Insights
  • Growth strategies
  • Upcoming projects

GET YOUR FREE INVESTOR KIT

Latest Press Releases

Related News

×