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Sample_lD

Tenement

Northing

Easting

Li₂O %

OM00048

848223/2015

9271363.8

763023.57

3.97

OM00049

848223/2015

9270438

763471.1

1.66

OM00050

848223/2015

9271186.4

764165.46

3.52

OM00051

848223/2015

9271363.8

763023.57

7.62

OM00052

848223/2015

9271363.8

763023.57

0.38

OM00053

848223/2015

9271363.8

763023.57

0.72

Criteria

JORC Code explanation

Commentary

Sampling techniques

• Nature and quality of sampling (e.g. 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 representativity 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 (e.g. 'reverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a30 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 (e.g. submarine nodules) may warrant disclosure of detailed information.

• At the Estrella Lithium Project sampling at the surface was predominantly rock chips. Sampling was focused on confirmation of mineralisation of Lithium from selected mineral species. In the case of Estrella this is near fresh Spodumene in float and outcrop from pegmatite outcrop. Samples are not considered to be representative of exposed widths of the pegmatite body, samples were not collected over standard widths or perpendicular to orebody orientations.

• Samples size ranged between 0.5-2kg which is considered an acceptable weight to ascertain a representative sample for preparation and assay.

• All Li₂O assay results in this ASX were assayed at SGS GEOSOL Laboratories LTDa Brazil.

Drilling techniques

• Drill type (e.g. core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc) and details (e.g. 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).

• All drill holes completed to date at Jaguar are diamond drillholes with core being drilled at HQ and NQ diameters with standard tube set up. A REFLEX ACT digital core orientation tool has been utilised on all except the first drill hole completed at Jaguar. No drilling has been completed on the Estrella site.

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.

• Diamond core was reconstructed into continuous runs with depths measured from the core barrel and checked against core block measurements in trays.

• JADDH00001 to JADDH00003 all reported in excess of >90% core recovery in oxidised and fresh material. JADDH0002 suffered an estimated 20-25% core loss in the mineralised core section of the pegmatite due to washing out of the weathered friable spodumene crystals and clay. This will likely result in a bias to under report grade due to core loss.

• Solis has requested a triple tube system is utilised in future shallow drilling to limit potential wash out of oxidised material.

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.

• Solis geologists logged all sample noting mineralogy, lithology, alteration and weathering state of samples obtained.

• Logging is both quantitative and qualitative in nature.

• All samples including any submitted CRM material are individually photographed before submission.

• All core is photographed and orientated.

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 representativity 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.

• Samples were taken to check the grades of exposed spodumene mineralisation, no systematic sampling across known exposed pegmatites was completed, samples were rock chips only and no systematic channel sampling has been completed to date.

• Duplicate samples were taken and stored for future reference.

• Samples are considered to be representative of exposed spodumene crystals within Jaguar open pit and of appropriate size with respect to sampled material.

• Diamond drill core has been sampled via cutting half core over preselected intervals with a diamond core and dispatching 1 full half of the core for analysis.

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 (e.g. standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (i.e. lack of bias) and precision have been established.

• All samples from Estrella were assayed at SGS GEOSOL Laboratories Ltda Brazil.

• Analysis procedures are considered to be appropriate for lithium and multielement analysis.

• Rock chips and grab samples are assayed via ICM90A (fusion by sodium peroxide and finish with ICP-MS/ICP-OES) for a 56-element suite at the SGS Geosol Laboratorios located at Vespasiano/Minas Gerais, Brazil.

• If lithium results are above 15,000ppm, the lab analyses the pulp samples just for lithium through ICP90Q (fusion by sodium peroxide and finish with ICP/OES).

• Solis inserted industry standard OREAS CRM for analysis, standards utilised were OREAS 750 and OREAS 22h, reported values are within 1SD of CRM certified values.

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.

• All Solis data is verified by the Competent Person. All data is stored in an electronic Access Database.

• Assay data and results is reported, unadjusted.

• Li₂O results used in this ASX release are converted from Li results by multiplying this value by the industry factor 2.153.

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.

• Data is shown using the UTM SIRGAS 2000 zone 23 South grid system.

• All samples and drill hole collar locations were captured using a handheld GPS and are to be surveyed in with a DGPS once arrives on site.

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.

• No set sample spacing or pattern has been applied due to the preliminary nature of the sampling programme.

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.

• Drill holes JADDH0002 and JADDH0003 were both orientated utilising a digital downhole tool confirming the orientation with respect to lithological contacts and known country rock stratigraphy.

Sample security

• The measures taken to ensure sample security.

• All drill core has been cut, sampled and bagged onsite under supervision of Soils staff, all bags are then sealed and couriered to SGS laboratories with all relevant submission documentation, all samples once received are logged into the lab and notice of each sample received is sent and cross checked with sample dispatch.

Audits or
reviews

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

• There have been no detailed external audits or reviews undertaken.

• Solis has conducted an internal technical review of the available geological and other publicly available data.

Criteria

JORC Code explanation

Commentary

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.

• The Jaguar Project area consists of 2 exploration licences held in the name of Marica Mineração Ltda, and Ingramar Ltda. Onca Mineracao has signed a binding option agreement sheet with both companies giving Onca the right to purchase 100% of each licence.
  See ASX release dated 31 May 2023 for terms of agreement.

• Exploration Licences: 871427/2006, 872376/2021

• Borborema exploration licences with work completed referred to in body of text are 848041/1985.

• Licences are in good standing and have no known environmental or other liabilities of any kind.

Exploration done by other parties

• Acknowledgment and appraisal of exploration by other parties.

• N/A - the Company is not aware of any previous formal exploration being undertaken within the tenements.

Geology

• Deposit type, geological setting and style of mineralisation.

• Prospective potential host units for the mineralised pegmatites are similar to the suite hosting the Colina-Salinas pegmatites held by Latin Resources Limited (ASX:LRS) in the state of Minas Gerais. They consist predominantly of metavolcanic and metasedimentary rocks (schist, gneiss and quartzites) located close to the large granitoids from the G3 suite with batholiths, stocks and dykes represented. Pegmatites are located within 0-5km of the granite contacts.

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:

  • easting and northing of the drill hole collar

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

  • dip and azimuth of the hole

  • 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.

• Refer to tables presented in report and notes attached which provide all relevant details.

Data aggregation methods

• In reporting Exploration Results, weighting averaging techniques, maximum and/or minimum grade truncations (e.g. 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.

• N/A no new drilling data is included in this report.

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 (e.g. 'down hole length, true width not known').

• N/A no new drilling data is included in this report.

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.

• The Company has included various maps and figures showing the sample results and geological context.

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 avoiding misleading reporting of Exploration Results.

• N/A

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.

• Geochemical rock chip and float sample results from previously unsampled pegmatites on the Estrella tenement are include in the body of text under Table 1; Rock Chip samples from Estrella. Samples are point samples only and considered to be off sufficient size or industry standard weight.

Further work

• The nature and scale of planned further work (e.g. 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.

• Solis will undertake extensive validation field confirmation and sampling of the regional geological setting including all known outcropping pegmatites at Estrella and Jaguar.

• Solis has signed a diamond drill contract for 2,500m of HQ diameter drill core to be performed on existing targets and below the known outcropping mineralisation at the Jaguar project.

• It is premature to provide diagrams of possible extensions.