·    Lagoon samples correspond to water brine samples from the surface lagoon, in an 800 m sampling grid, including eight (08) sampling duplicates in random positions. The samples were taken from 0.5 m depth and, for positions with above 5 m depth a bottom sample were also obtained.
 

·    For every sample, two (02) litres of brine were obtained with a one-litre double valve bailer, using a new bailer for each sampling position. All materials and sampling bottles were first flushed with 100 cc of brine water before receiving the final sample.

·    Sub surface brine samples were obtained with a packer bit tool provided by the drilling company (Big  Bear). Once the sampling support was sealed, a purging operation took place until no drilling mud was detected After the purging operation, half an hour waiting took place to let brine enter to the drilling rods thru the slots in the packer tool before sampling with double valve bailer.

·    Successive one-litre samples with half an hour separation were taken with a steel made double valve bailer. Conductivity-based TDS was measured in every sample with a Hanna Multiparameter. The last two samples that measure stable similar TDS values were considered as non-contaminated and identified as the Original and Reject samples. All materials and sampling bottles were first flushed with 100 cc of brine water before receiving the final sample.

·    In Laguna Verde, diamond drilling with PQ3 diameter were used up to 320 m depth. Below that depth the drilling diameter was reduced to HQ3

·    In both diameters a triple tube was used for the core recovery.

·    Packer bit provided by Big Bear was used to obtain the brine sample (Except in drillhole LV04).

·    Drillholes LV01, LV02 and LV04 were cased and habilitated with 3" PVC and silica gravel. LV03 was not possible to case due well collapse and tools entrapment  

·    Core recovery were assured by direct supervision and continuous geotechnical logging.

·    Continue geological and geotechnical logging took place during drilling

·    For the surface lagoon brine samples, Ph and Temperature °C parameters were measured during the sampling.

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

·      During the brine samples batch preparation process, the samples were transferred to new sampling bottles. 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. Before transferring each sample, the materials used for the transfer were flushed with distilled water and then shacked to remove water excess avoiding contamination. The author personally supervised the laboratory batch preparation process.

·      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 detemination 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 bathymetry a Garmin Echomap CV44 and the Eco Probe CV20-TM Garmin were used. The equipment has a resolution of 0.3 ft and max depth measure of 2,900 ft.

·      The bathymetry data was calibrated by density, using 1.14 g/cm3, modifying the propagation velocity from the nominal value 1,403 m/s (1 g/cm3 density at 0°C) to a corrected value of 1,660 m/s (1.14 g/cm3 density at 0°C), reducing the original bathymetry depth data in 15%

·      For the TEM Geophysical survey a Zonge Engineering and Research Organization, USA equipment was used, composed by a multipurpose digital receiver model GDP-32 and a transmitter TEM model ZT-30, with batteries as power source. A coincident transmission / reception loop was used, were 167 stations use 100x100 m2 loop and 4 stations use 200x200 m2 loop, reaching a survey depth of 300 m and 400 m respectively
    

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

·    Data from bathymetry and geophysics were used as delivered by Servicios Geológicos GEODATOS SAIC

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

·    Brine samples batches were prepared personally by the competent person. All data are in EXCEL files   

·    Samples coordinates were captured with non-differential hand held GPS

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

·    The bathymetry coordinates were captured by differential Thales Navigation differential GPS system, consisting in two GPS model Promark_3, designed to work in geodesic, cinematic and static modes of high precision, where one of the instruments is installed in a base station and the other was on board the craft.

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

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

·    Topographic control is not considered critical as the lagoon and its surroundings are generally flat lying and the samples were definitively obtained from the lagoon

·    Geochemical lagoon samples spacing is approximately 800 m, covering the entire lagoon area

·    Packer brine samples were taken every 18 m

·    For bathymetry two grids were used, one of 400 m and the other of 200 m in areas were the perimeter have more curves

·    For TEM geophysical survey a 400 m stations distance was 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

·    The lagoon is a free water body and no mineralized structures are expected in the unconsolidated sediment

·    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 boxes, then sent via currier to ALS laboratory Antofagasta. All the process was made under the Competent Person direct supervision.

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

·    CleanTech Lithium holds in Laguna Verde 2,437 hectares of Exploitation Mining Concessions that cover the entire lagoon area under an Option Agreement and 4,235 hectares of Exploration Mining Concessions outside the lagoon area.

·    All prohibition certificates in favour of Atacama Salt Lakes SpA were reviewed by the Competent Person. 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 works has been done by Pan American Lithium and Wealth Minerals Ltda. In the past

·    Laguna Verde is a hyper saline lagoon that is classified as an immature clastic salar. The deposit is composed of a Surface Brine Resource, formed by the brine water volume of the surface lagoon and the Sub-Surface Resource, formed by brine water hosted in volcano-clastic sediments that lies beneath the lagoon

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

·    LV01 E549,432 N7,027,088 ELEV 4,429 m a.s.l.

·    LV02 E553,992 N7,024,396 ELEV 4,358 m a.s.l.

·    LV03 E549,980 N7,028,434 ELEV 4,402 m a.s.l.

·    LV04 E556,826 N7024,390 ELEV 4,350 m.a.s.l.

·    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

·    The relationship between aquifer widths and intercept lengths are direct, except in LV03 were a dip of -60° should be applied

·    Addressed in the report

·    All results have been included.

·    All material exploration data and results have been included

·    Cross-check of laboratory assay reports and Database

·    QA/QC as described in Section 4.7

·    A site visit was undertaken by the Component

Person from June 2nd to June 4th, 2021. The outcome of the visit was a general geological review and the lagoon water brine geochemical sampling

·    Continue supervision of January to May 2022 drilling campaign.

·    For the Surface Brine Resource, the interpretation is direct and there is no uncertainty.

·    For the Sub-Surface Resource, the geological interpretation was made based in the TEM study and gravimetry (SRK, 2011). The lithological interpretation was confirmed by hydrogeological drilling made outside the concessions area.

·    Low resistivities are associated with sediments saturated in brines, but also with very fine sediments or clays. The direct relationship of the low resistivity layer with the above hypersaline lagoon raise the confidence that the low resistivities are associated with brines.

·    Drillholes confirm the geological interpretations

·    For the Surface Brine Resource the lagoon dimensions are 14,682,408 m2 of area with depths ranging from 0 m to 7.18m with an average depth of 4.05 m

·    The Sub-Surface Brine Resource is a horizontal lens closely restricted to the lagoon perimeter with an area of approximately 29 km2 and depths ranging from the lagoon bottom depth to 400 m

·      For the Surface Brine resource, the surface lake brine water volume is directly obtained by the bathymetry study detailed on Section 4.2.

·      Lithium (mg/l) samples values are in general homogeneously distributed along the lagoon with a narrow value distribution. the lagoon is a free water body where the ionic content is dynamic for every specific position, there is no point in estimate the lake lithium content via Kriging or other geostatistical method. The use of the total samples average value 245.794 mg/l was used for the Surface Brine Resource Estimation.

·      For Sub-Surface Resource a continuity of the lagoon average Li Mg/l grade was assumed for the brine hosted in sedimentary deposits beneath the lagoon.

·      A 3D model was built for the conductive geo-electric unit below 2 Ohm-m using GEMS software by digitalizing the <2 Ohm-m zones from TEM profiles and use them to build plans every 50 m. The plans were restricted to the lagoon dominion and continuity below the lagoon was assumed. A 3D triangulation was form with the plans and tie lines

·      The geological units beneath the lake corresponds to a thin layer of moderately consolidated tuffs over a thick bed of coarse sands and gravels. These units have a moderately to very high porosity so, a conservative specific yield value of 11 % was assumed for the Sub Surface Resource unit

·    Not applicable for brine resources

·    No cut-off parameters were used

·    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

·    Direct Lithium Extraction technology (DLE) with spent brine reinjection is planned for Laguna Verde. Only production/reinjection wells and brine mixing ponds are planned to install on the concession area. The main plant installations are planned to be located in an industrial area.

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

·    Bulk density is not relevant to brine resource estimation.

·    For porosity, a conservative Specific Yield of 11% was used.

·    For the Surface Brine Resource, the data is considered sufficient to assign a Measured Resource classification

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

·    The result reflects the view of the Competent Person

·    No audit or reviews were undertaken.