Cleantech Lithium Regulatory News (CTL)

Sample ID

Sample Depth (m)

Lab Sample ID

Total Dissolved Solids (mg/L)

Lithium Grade (mg/L)

FB01-102

102

FBS001

115,820

313

FB01-108

108

FBS002

122,730

321

FB01-114

114

FBS003

125,190

319

FB01-120

120

FBS004

113,820

319

FB01-126

126

FBS005

112,310

300

FB01-132

132

FBS006

108,580

314

FB01-138

138

FBS007

125,820

317

FB01-144

144

FBS009

110,840

308

FB01-150

150

FBS010

106,130

304

FB01-156

156

FBS011

102,870

300

FB01-162

162

FBS012

104,050

318

FB01-168

168

FBS013

114,320

314

FB01-174

174

FBS014

120,590

305

FB01-180

180

FBS016

114,320

286

FB01-186

186

FBS017

94,410

266

FB01-192

192

FBS018

121,080

312

FB01-198

198

FBS019

106,870

314

FB01-204

204

FBS020

103,814

324

FB01-210

210

FBS021

126,214

318

FB01-216

216

FBS022

115,534

313

FB01-222

222

FBS023

110,244

303

FB01-228

228

FBS024

95,624

255

FB01-234

234

FBS025

116,440

309

FB01-240

240

FBS027

116,984

314

FB01-246

246

FBS028

110,074

312

FB01-252

252

FBS029

114,024

315

FB01-258

258

FBS030

100,304

313

FB01-264

264

FBS031

104,614

312

FB01-270

270

FBS032

101,134

292

FB01-276

276

FBS033

111,644

315

FB01-282

282

FBS034

96,854

293

FB01-288

288

FBS035

97,254

269

FB01-294

294

FBS036

106,114

287

FB01-300

300

FBS037

111,294

300

Average

305

For further information contact:

CleanTech Lithium PLC

Aldo Boitano/Gordon Stein

Jersey office: +44 (0) 1534 668 321

Chile office: +562-32239222

Or via Celicourt

Celicourt Communications

+44 (0) 20 8434 2754

Felicity Winkles/Philip Dennis

cleantech@celicourt.uk

Beaumont Cornish Limited

(Nominated Adviser)

Roland Cornish

+44 (0) 207 628 3396

Fox-Davies Capital Limited

(Joint Broker)

Daniel Fox-Davies

Canaccord Genuity Limited

(Joint Broker)

James Asensio

Gordon Hamilton

+44 20 3884 8450

daniel@fox-davies.com

+44 (0) 207 523 4680

Sampling techniques

· Nature and quality of sampling (eg cut channels, random chips, or specific specialised industry standard measurement tools appropriate to the minerals under investigation, such as down hole gamma sondes, or handheld XRF instruments, etc). These examples should not be taken as limiting the broad meaning of sampling.

· Include reference to measures taken to ensure sample representivity and the appropriate calibration of any measurement tools or systems used.

· Aspects of the determination of mineralisation that are Material to the Public Report.

· In cases where 'industry standard' work has been done this would be relatively simple (eg 'reverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assay'). In other cases more explanation may be required, such as where there is coarse gold that has inherent sampling problems. Unusual commodities or mineralisation types (eg submarine nodules) may warrant disclosure of detailed information.

· After the FB01 well casing with 8-inch PVC and silica gravel, a development process took place. The well development includes an injection of a hypochlorite solution to break the drilling additives, enough solution actuation waiting time and then, purging of minimum three well volumes operation to clean the cased well from drilling mud and injected fresh water.

· The developing process was made using a small rig, a high-pressure compressor and 2-inch threaded PVC that can be coupled to reach any depth. The purging/cleaning operation is made from top to bottom, injecting air with a hose inside the 2-inch PVC and "suctioning" the water, emulating a Reverse Circulation system.

· Once the well is verified, clan assuring that the purged water is brine coming from the aquifer, the PVC Casing Suction samples were taken from bottom to top, while the 2-inch PVC is extracted from the well. A 20-litre bucket is filled with brine and the brine sample is obtained from the bucket once the remaining fine sediments that could appear in the sample decant.

· One-litre Samples every 3 m were taken and, every 6 m sent to laboratory to preserve a second sample set for auditory purposes.

· Conductivity-based TDS and T°C were measured in every sample with a Hanna Multiparameter. All materials and sampling bottles were first flushed with brine water before receiving the final sample.

· After the PVC Casing Suction sampling in FB01, a stabilization period of minimum 5 days took place before proceeding with the PVC Casing Bailer sampling to let the well match the aquifer hydro-chemical stratigraphy.

· PVC Casing Bailer sampling process at FB01was made by JCP Ltda., specialists in water sampling. Samples were taken from the interest depths with a double valve discardable bailer. The bailer is lowered and raised with an electric cable winch, to maintain a constant velocity and avoid bailer valves opening after taking the sample from the desire support.

· PVC Casing Bailer samples were obtained every 6 m support to avoid disturbing the entire column during the sampling process. Conductivity-based TDS and Temperature °C were measured for every sample with a Hanna multiparameter.

Drilling techniques

· Drill type (eg core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple or standard tube, depth of diamond tails, face-sampling bit or other type, whether core is oriented and if so, by what method, etc).

· In Francisco Basin Reverse flooded drilling system with 14 ¾ inch diameter was used in well FB01, from 0 m to its final depth 331 m. Then, were cased and habilitated with 8-inch PVC and silica gravel up to 311 m, with smooth PVC (blind) from 0 to 99 m and slotted PVC from 99 to 311 m.

· FB02 were drilled with the same technic. From 0 to 36 m, with 20-inch diameter. Then, steel casing was installed for stabilization purposes. From 36 m to its final depth 106.5 m, 14 ¾ diameter was used. Finally, the well was conditioned with heavy drilling mud for stabilization and preservation purposes and left to be completed in the next drilling season.

Drill sample recovery

· Method of recording and assessing core and chip sample recoveries and results assessed.

· Measures taken to maximise sample recovery and ensure representative nature of the samples.

· Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential loss/gain of fine/coarse material.

· Only cuttings were recovered for geological logging purposes.

Logging

· Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation, mining studies and metallurgical studies.

· Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc) photography.

· The total length and percentage of the relevant intersections logged.

· Continue geological logging took place during drilling

· For all brine samples conductivity-based TDS and Temperature °C parameters were measured during the sampling

Sub-sampling techniques and sample preparation

· If core, whether cut or sawn and whether quarter, half or all core taken.

· If non-core, whether riffled, tube sampled, rotary split, etc and whether sampled wet or dry.

· For all sample types, the nature, quality and appropriateness of the sample preparation technique.

· Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples.

· Measures taken to ensure that the sampling is representative of the in situ material collected, including for instance results for field duplicate/second-half sampling.

· Whether sample sizes are appropriate to the grain size of the material being sampled.

· During the brine samples batch preparation process, Standard (internal standard composed by known stable brine), Duplicates and Blank samples (distilled water) were randomly included in the batch in the rate of one every twenty samples.

· After check samples insertion, all samples were re-numbered before submitted to laboratory. The author personally supervised the laboratory batch preparation process.

Quality of assay data and laboratory tests

· The nature, quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total.

· For geophysical tools, spectrometers, handheld XRF instruments, etc, the parameters used in determining the analysis including instrument make and model, reading times, calibrations factors applied and their derivation, etc.

· Nature of quality control procedures adopted (eg standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established.

· Brine samples were assayed on ALS Life Science Chile laboratory, by Li, K, B, Mg, Ca, Cu and Na by ICP-OES, method described on QWI-IO-ICP-OES- 01 Edisión A, Modification 0 EPA 3005A; EPA 200.2.

· Total Density use the method described on THOMPSON Y, TROEH DE. Los suelos y su fertilidad.2002. Editorial Reverté S.A. Cuarta Edición. Págs.75-85.

· Chlorine determination described on QWI-IO-Cl-01 Emisión B mod. 1 Método basado en Standard Methods for the Examination of Water and Wastewater, 23st Edition 2017. Método 4500-Cl-B QWI-IO-Cl-01 Emisión B, mod. 1. SM 4500-Cl- B, 22nd Edition 2012.

· Total Disolved Solids (TDS) with method describe on INN/SMA SM 2540 C Ed 22, 2012

· Sulfate according method described on INN/SMA SM 4500 SO4-D Ed 22, 2012

· Duplicates were obtained randomly during the brine sampling. Also, Blanks (distilled water) and Standards were randomly inserted during the laboratory batch preparation.

· The standards were prepared on the installations of Universidad Católica del Norte using a known stable brine according procedure prepared by Ad Infinitum. Standard nominal grade was calculated in a round robin process that include 04 laboratories. ALS life Sciences Chile laboratory was validated during the round robin process.

· All check samples were inserted in a rate of one each twenty samples

· For the TEM Geophysical survey a Applied Electromagnetic Research FAST-TEM 48 equipment was used, composed by a transmitter and receiver unit, a PC and the circuit cables (buckle), with batteries as power source. A coincident transmission / reception loop of 220x220 m2 was used for the 98 surveyed stations, reaching a survey depth of 400 m    

Verification of sampling and assaying

· The verification of significant intersections by either independent or alternative company personnel.

· The use of twinned holes.

· Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) protocols.

· Discuss any adjustment to assay data.

· The assay data was verified by the author against the assay certificate.

· Geophysics were used as delivered by Terra Pacific

· Geological logs were managed by geology contractor GEOMIN and checked by the competent person

· Brine samples batches were prepared personally by the author or by JCP Ltda., with the supervision of the author. All data are in EXCEL files

Location of data points

· Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys), trenches, mine workings and other locations used in Mineral Resource estimation.

· Specification of the grid system used.

· Quality and adequacy of topographic control.

· Drillhole collars were captured with non-differential hand held GPS. Position was verified by topographic features Total station topographic capture of the drillhole collars is pending 

· The TEM geophysical survey coordinates were captured with non-differential hand held GPS.

· The coordinate system is UTM, Datum WGS84 Zone 19J

Data spacing and distribution

· Data spacing for reporting of Exploration Results.

· Whether the data spacing and distribution is sufficient to establish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied.

· Whether sample compositing has been applied.

· PVC Casing Suction brine samples were taken every 3 m and, sent to laboratory every 6 m

· PVC Casing Bailer brine samples were taken every 6 m

· For TEM geophysical survey a 750 m stations distance, in lines every 1,250 m were used.

· The author believes that the data spacing and distribution is sufficient to establish the degree of geological and grade continuity appropriate for the Resource Estimation

Orientation of data in relation to geological structure

· Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known, considering the deposit type.

· If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias, this should be assessed and reported if material.

Sample security

· The measures taken to ensure sample security.

· All brine samples were marked and keep on site before transporting them to Copiapó city warehouse

· The brine water samples were transported without any perturbation directly to a warehouse in Copiapó city, were laboratory samples batch was prepared and stored in sealed plastic coolers, then sent via currier to ALS laboratory Santiago. All the process was made under the Competent Person direct supervision.

· ALS personnel report that the samples were received without any problem or disturbance

Audits or reviews

· The results of any audits or reviews of sampling techniques and data.

· The assay data was verified by the Competent Person against the assay certificate.

· No audits were undertaken

Mineral tenement and land tenure status

· Type, reference name/number, location and ownership including agreements or material issues with third parties such as joint ventures, partnerships, overriding royalties, native title interests, historical sites, wilderness or national park and environmental settings.

· The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area.

· CleanTech Lithium holds in Francisco Basin 12,579 hectares of Exploitation and Exploration Mining Concessions

· The Competent Person relies in the Mining Expert Surveyor Mr, Juan Bedmar.

· All concession acquisition costs and taxes have been fully paid and that there are no claims or liens against them

· There are no known impediments to obtain the licence to operate in the area 

Exploration done by other parties

· Acknowledgment and appraisal of exploration by other parties.

· No Lithium Exploration works has been done by third parties in the past

Geology

· Deposit type, geological setting and style of mineralisation.

· Francisco Basin is a sediment filling basin adjacent to a system of hyper saline and fresh lagoon and is classified as a very immature clastic salar extension.

Drill hole Information

· A summary of all information material to the understanding of the exploration results including a tabulation of the following information for all Material drill holes:

o easting and northing of the drill hole collar

o elevation or RL (Reduced Level - elevation above sea level in metres) of the drill hole collar

o dip and azimuth of the hole

o down hole length and interception depth

o hole length.

· If the exclusion of this information is justified on the basis that the information is not Material and this exclusion does not detract from the understanding of the report, the Competent Person should clearly explain why this is the case.

· The following drillhole coordinates are in WGS84 zone 19 J Datum

· FB01 E479,907 N6,959,274 ELEV 4,151 m a.s.l.

· FB02 E483,350 N6,957,900 ELEV 4,164 m a.s.l.

Data aggregation methods

· In reporting Exploration Results, weighting averaging techniques, maximum and/or minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated.

· Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results, the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail.

· The assumptions used for any reporting of metal equivalent values should be clearly stated.

· No low-grade cut-off or high-grade capping has been implemented due to the consistent nature of the brine assay data

· No data aggregate of any kind has been implemented

Relationship between mineralisation widths and intercept lengths

· These relationships are particularly important in the reporting of Exploration Results.

· If the geometry of the mineralisation with respect to the drill hole angle is known, its nature should be reported.

· If it is not known and only the down hole lengths are reported, there should be a clear statement to this effect (eg 'down hole length, true width not known').

· The relationship between aquifer widths and intercept lengths are direct

Diagrams

· Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include, but not be limited to a plan view of drill hole collar locations and appropriate sectional views.

· Addressed in the report

Balanced reporting

· Where comprehensive reporting of all Exploration Results is not practicable, representative reporting of both low and high grades and/or widths should be practiced to avoid misleading reporting of Exploration Results.

· All results have been included.

Other substantive exploration data

· Other exploration data, if meaningful and material, should be reported including (but not limited to): geological observations; geophysical survey results; geochemical survey results; bulk samples - size and method of treatment; metallurgical test results; bulk density, groundwater, geotechnical and rock characteristics; potential deleterious or contaminating substances.

· All material exploration data and results have been included

Further work

· The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling).

· Diagrams clearly highlighting the areas of possible extensions, including the main geological interpretations and future drilling areas, provided this information is not commercially sensitive.

· Drilling to be undertaken upgrade Inferred Resources to Measured + Indicated and Indicated Resouces to Measured Resources

· Hydraulic testing be undertaken, for instance pumping tests from wells to determine, aquifer properties, expected production rates, upgrade Resources to Reserves and infrastructure design

· Aquifer recharge dynamics be studied to determine the water balance and subsequent production water balance. For instance, simultaneous data recording of rainfall and subsurface brine level fluctuations to understand the relationship between rainfall and aquifer recharge, and hence the brine recharge of the aquifer

Database integrity

· Measures taken to ensure that data has not been corrupted by, for example, transcription or keying errors, between its initial collection and its use for Mineral Resource estimation purposes.

· Data validation procedures used.

· Cross-check of laboratory assay reports and Database

· QA/QC as described in Sampling Section

Site visits

· Comment on any site visits undertaken by the Competent Person and the outcome of those visits.

· If no site visits have been undertaken indicate why this is the case.

· Continue supervision of March to May 2022 drilling campaign.

Geological interpretation

· Confidence in (or conversely, the uncertainty of ) the geological interpretation of the mineral deposit.

· Nature of the data used and of any assumptions made.

· The effect, if any, of alternative interpretations on Mineral Resource estimation.

· The use of geology in guiding and controlling Mineral Resource estimation.

· The factors affecting continuity both of grade and geology.

· For the geological interpretation was made based in the TEM study

· Low resistivities are associated with sediments saturated in brines, but also with very fine sediments or clays

· Drillhole FB01 confirm the geological interpretations

Dimensions

· The extent and variability of the Mineral Resource expressed as length (along strike or otherwise), plan width, and depth below surface to the upper and lower limits of the Mineral Resource.

· The Brine Resource is a horizontal lens with an area of 19.64 km2 (2.5 km radius around FB01) and 212 m wide

Estimation and modelling techniques

· The nature and appropriateness of the estimation technique(s) applied and key assumptions, including treatment of extreme grade values, domaining, interpolation parameters and maximum distance of extrapolation from data points. If a computer assisted estimation method was chosen include a description of computer software and parameters used.

· The availability of check estimates, previous estimates and/or mine production records and whether the Mineral Resource estimate takes appropriate account of such data.

· The assumptions made regarding recovery of by-products.

· Estimation of deleterious elements or other non-grade variables of economic significance (eg sulphur for acid mine drainage characterisation).

· In the case of block model interpolation, the block size in relation to the average sample spacing and the search employed.

· Any assumptions behind modelling of selective mining units.

· Any assumptions about correlation between variables.

· Description of how the geological interpretation was used to control the resource estimates.

· Discussion of basis for using or not using grade cutting or capping.

· The process of validation, the checking process used, the comparison of model data to drill hole data, and use of reconciliation data if available.

· Lithium (mg/l) PVC Casing Suction samples values are in general homogeneously distributed along the FB01 drillhole, there is no point in estimate the lithium content via Kriging or other geostatistical method given that there is only one drillhole. The use of the samples values mg/l by level will be used for the Brine Resource Estimation.

· The geological units in the basin filling correspond to variable proportions of gravels, sands and clays These units have a moderately to very high porosity so, a conservative specific yield will be estimated, depending on the logged proportions of its content

Moisture

· Whether the tonnages are estimated on a dry basis or with natural moisture, and the method of determination of the moisture content.

· Not applicable for brine resources

Cut-off parameters

· The basis of the adopted cut-off grade(s) or quality parameters applied.

· No cut-off parameters were used

Mining factors or assumptions

· Assumptions made regarding possible mining methods, minimum mining dimensions and internal (or, if applicable, external) mining dilution. It is always necessary as part of the process of determining reasonable prospects for eventual economic extraction to consider potential mining methods, but the assumptions made regarding mining methods and parameters when estimating Mineral Resources may not always be rigorous. Where this is the case, this should be reported with an explanation of the basis of the mining assumptions made.

· Mining will be undertaken by pumping brine from production wells and re-injection

· Pumping tests should be undertaken to ascertain hydraulic properties of the host aquifer

Metallurgical factors or assumptions

· The basis for assumptions or predictions regarding metallurgical amenability. It is always necessary as part of the process of determining reasonable prospects for eventual economic extraction to consider potential metallurgical methods, but the assumptions regarding metallurgical treatment processes and parameters made when reporting Mineral Resources may not always be rigorous. Where this is the case, this should be reported with an explanation of the basis of the metallurgical assumptions made.

· Direct Lithium Extraction technology (DLE) with spent brine reinjection is planned for Francisco Basin. Production Plant / Camp, production/reinjection wells, and brine mixing ponds are planned to install on the concession area.

Environmen-tal factors or assumptions

· Assumptions made regarding possible waste and process residue disposal options. It is always necessary as part of the process of determining reasonable prospects for eventual economic extraction to consider the potential environmental impacts of the mining and processing operation. While at this stage the determination of potential environmental impacts, particularly for a greenfields project, may not always be well advanced, the status of early consideration of these potential environmental impacts should be reported. Where these aspects have not been considered this should be reported with an explanation of the environmental assumptions made.

· The main environmental impacts expected is the Production Plant / Camp and the surface disturbance associated with production wells and brine mixing ponds. These impacts are not expected to prevent project

Bulk density

· Whether assumed or determined. If assumed, the basis for the assumptions. If determined, the method used, whether wet or dry, the frequency of the measurements, the nature, size and representativeness of the samples.

· The bulk density for bulk material must have been measured by methods that adequately account for void spaces (vugs, porosity, etc), moisture and differences between rock and alteration zones within the deposit.

· Discuss assumptions for bulk density estimates used in the evaluation process of the different materials.

· Bulk density is not relevant to brine resource estimation.

· For porosity conservative specific yield will be estimated, depending on the logged proportions of the sediments content

Classification

· The basis for the classification of the Mineral Resources into varying confidence categories.

· Whether appropriate account has been taken of all relevant factors (ie relative confidence in tonnage/grade estimations, reliability of input data, confidence in continuity of geology and metal values, quality, quantity and distribution of the data).

· Whether the result appropriately reflects the Competent Person's view of the deposit.

· For the brine Resource, the data and assumptions are only considered sufficient to assign an Inferred Resource classification

· The result reflects the view of the Competent Person

Audits or reviews

· The results of any audits or reviews of Mineral Resource estimates.

· No audit or reviews were undertaken.

Discussion of relative accuracy/ confidence

· Where appropriate a statement of the relative accuracy and confidence level in the Mineral Resource estimate using an approach or procedure deemed appropriate by the Competent Person. For example, the application of statistical or geostatistical procedures to quantify the relative accuracy of the resource within stated confidence limits, or, if such an approach is not deemed appropriate, a qualitative discussion of the factors that could affect the relative accuracy and confidence of the estimate.

· The statement should specify whether it relates to global or local estimates, and, if local, state the relevant tonnages, which should be relevant to technical and economic evaluation. Documentation should include assumptions made and the procedures used.

· These statements of relative accuracy and confidence of the estimate should be compared with production data, where available.

· The estimated tonnage represents the in-situ brine with no recovery factor applied. It will not be possible to extract all of the contained brine by pumping from production wells. The amount which can be extracted depends on many factors including the permeability of the sediments, the drainable porosity, and the recharge dynamics of the aquifers.

· No production data are available for comparison