Laguna Verde Useful resource Enhance Primarily based on Latest Licence Acquisition

CleanTech Lithium PLC (“CleanTech Lithium” or “CleanTech” or the “Firm”) (AIM: CTL, Frankfurt:T2N), an exploration and improvement firm advancing sustainable lithium tasks in Chile, publicizes an up to date useful resource estimate for its Laguna Verde challenge following the latest acquisition of extra licences on the challenge. Laguna Verde is without doubt one of the six salars chosen by the Chilean Authorities to be prioritised for improvement by non-public corporations.

Highlights:

• The mineral useful resource estimate is up to date from that reported on 20 Jan 2025, primarily based on the latest acquisition of extra licences on the challenge, as reported to the market on 11 Aug 2025
• The up to date whole useful resource is 1.9 million tonnes of Lithium Carbonate Equal (LCE), at a grade of 174 mg/L lithium, a 17% enhance from the earlier whole useful resource of 1.63 million tonnes of LCE
• 0.84 million tonnes of LCE is within the Measured + Indicated class at a grade of 178 mg/L lithium
• The extra licences had been acquired to satisfy the Authorities’s licence space requirement for coming into the streamlined course of for a Particular Lithium Working Contract (CEOL)
• The Chilean authorities is finalising the indigenous neighborhood consultations for Laguna Verde and it’s anticipated that the streamlined course of shall be introduced shortly afterwards
• The JORC (2012) compliant estimate was calculated by Montgomery & Associates (“Montgomery´” or “M&A”), a number one hydrogeological marketing consultant extremely skilled in lithium brine useful resource estimation
• The useful resource estimate is predicated on three years of annual exploration programmes accomplished by CTL from 2022 – 2024 together with drill progammes, pump take a look at programmes and geophysics surveys
• Montgomery recommends three extra drillholes within the southwest, north and northeast to probably enhance the useful resource
• The Measured and Indicated useful resource estimate shall be used within the ongoing pre-feasibility examine (PFS) which is meant to underpin a maiden reserve estimate for the Laguna Verde challenge.

Ignacio Mehech, Chief Govt Officer, CleanTech Lithium stated: “The up to date JORC-compliant useful resource estimate for the Laguna Verde challenge, independently decided by Montgomery & Associates, confirms a strong and vital useful resource of 1.9 million tonnes of Lithium Carbonate Equal (LCE) at a median grade of 174 mg/l lithium, with 0.84 million tonnes within the Measured and Indicated class. The useful resource estimate is a crucial component of the challenge´s Pre-Feasibility Examine which is advancing to completion. This positions Laguna Verde as a number one direct lithium extraction (DLE) primarily based challenge in Chile’s lithium sector and as a future producer for the worldwide EV and battery market.”

Additional Particulars:

Background to Up to date Useful resource Estimate

The earlier whole useful resource estimate declared for Laguna Verde of 1.63 million tonnes LCE was primarily based on the CEOL polygon proposed by the Firm. Of this whole useful resource estimate, 1.21 million tonnes LCE was primarily based on the Firm´s preferential licence space inside that polygon, and 0.42 million tonnes LCE was categorised as provisional primarily based on the full proposed CEOL space. In August 2025 the Firm acquired a further 30 licences from Minergy Chile SpA, with the first goal of accelerating the preferential licence place inside the Authorities outlined CEOL polygon as proven Figures 1 and a couple of. The acquisition elevated the Firm´s preferential licence place inside the Authorities’s outlined polygon to 97.6% of the world, exceeding a threshold of 80% required by the Authorities for consideration to enter a streamlined CEOL course of for Laguna Verde. The up to date useful resource estimate of 1.9 million tonnes LCE is predicated on the enlarged preferential licence space in Determine 2.

Fig 1: Earlier Preferential Licence Extent & Govt. CEOL Polygon

Fig. 2: Publish Acquisition Preferential Licence Extent

The useful resource estimate is predicated on annual exploration programmes accomplished by the Firm between 2022 – 2024, through which rotary and diamond drill programmes had been accomplished as proven in Determine 3. Extra remark wells had been drilled to help observations throughout pump checks. Three extra diamond drillholes within the southwest, north, and northeast are beneficial to probably additional broaden the useful resource quantity (LV08, LV09, and LV10).

Fig 3: Current and Really useful Exploration Wells at Laguna Verde

Useful resource Abstract

The technical report has been ready by Montgomery to evolve to the regulatory necessities of the JORC Code (2012). Mineral Assets are additionally reported in accordance with the Canadian Institute of Mining, Metallurgy and Petroleum (CIM) Greatest Observe Pointers (CIM, 2012). The breakdown of the useful resource classes comprising the full useful resource is supplied in Desk 1 under.

Mineral sources will not be mineral reserves and shouldn’t have demonstrated financial viability. Moreover, not all mineral sources might be transformed into mineral reserves after utility of the modifying elements, which embrace however will not be restricted to mining, processing, financial, and environmental elements.

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