Common use of Verification of sampling and assaying Clause in Contracts

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. • No drilling has been undertaken by Petratherm although limited historical drilling exists. Additional details from historic drilling are unknown. 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. • All maps and locations are in UTM grid (GDA94 Z53). Drill hole positions have been reproduced from SA Government open file databases and the accuracy of this data is unknown. 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 drilling or sampling has been undertaken by Xxxxxxxxxx although historical drilling exists. • Data spacing is insufficient to establish the degree of geological and grade continuity required for a Mineral 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. • No drilling has been undertaken by Petratherm although limited historical drilling exists. • The relationship between the drilling orientation and the orientation of key mineralised structures has not been confirmed. Criteria JORC Code explanation Commentary Sample security • The measures taken to ensure sample security. • No sampling has been undertaken by Xxxxxxxxxx although limited historic sampling exists. • Additional details from historic drilling are unknown. Audits or reviews • The results of any audits or reviews of sampling techniques and data. • No sampling has been undertaken by Xxxxxxxxxx although limited historic sampling exists. • Additional details from historic drilling are unknown.

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. • No drilling has been undertaken by Petratherm although limited historical drilling exists. Additional details from historic drilling are unknown. 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. • All maps and locations are in UTM grid (GDA94 GDA2020 Z53). Drill hole positions have been reproduced from SA Government open file databases and the accuracy of this data is unknown. 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 drilling or sampling has been undertaken by Xxxxxxxxxx although historical drilling exists. • Data spacing is insufficient to establish the degree of geological and grade continuity required for a Mineral 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. • No drilling has been undertaken by Petratherm although limited historical drilling exists. • The relationship between the drilling orientation and the orientation of key mineralised structures has not been confirmed. Criteria JORC Code explanation Commentary Sample security • The measures taken to ensure sample security. • No sampling has been undertaken by Xxxxxxxxxx although limited historic sampling exists. • Additional details from historic drilling are unknown. Audits or reviews • The results of any audits or reviews of sampling techniques and data. • No sampling has been undertaken by Xxxxxxxxxx although limited historic sampling exists. • Additional details from historic drilling are unknown.

Verification of sampling and assaying. The verification of significant intersections by either independent or alternative company personnel. • The use of twinned holes. Twinning of holes has not been conducted. • Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) protocols. • Data by Pallas Minerals and Novo Litio recorded digitally into excel. • Data by LKAB recorded on hard copy reports in pdf form. • Discuss any adjustment to assay data. • No drilling has been undertaken by Petratherm although limited historical drilling existsAssays converted to oxide species details shown in Data Aggregation Methods section. Additional details from historic drilling are unknown. 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. Coordinates for rock samples, channel samples and drilling by Pallas Minerals were recorded using a handheld GPS. Coordinates for drilling by LKAB were recorded on a local grid and coordinates have been estimated by geo-registering historical maps. Location of data points • Specification of the grid system used. • SWEREF99TM. • Quality and adequacy of topographic control. • All maps No topographic control conducted and locations are in UTM grid (GDA94 Z53)not deemed necessary for the reporting of reconnaissance exploration results. Drill hole positions have been reproduced from SA Government open file databases and the accuracy of this data is unknown. Data spacing and distribution • Data spacing for reporting of Exploration Results. • Rock sampling was conducted where outcrop and boulder samples are available. • Drill spacing varies from 40m to 100m north-south which was appropriate for reporting of reconnaissance exploration results. Data spacing and distribution • 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. • The data is not appropriate for use in estimating a resource. • Whether sample compositing has been appliedapplied • Drill compositing was conducted at 0.05, 0.1 and 0.5% LiO2 cutoff for trenching and drilling results. • No drilling or sampling has been undertaken by Xxxxxxxxxx although historical drilling exists. • Data spacing is insufficient to establish the degree of geological and grade continuity required for a Mineral Resource estimation. Criteria JORC Code explanation Commentary 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. • No drilling has been undertaken by Petratherm although limited historical drilling existsOutcrop rock sampling was conducted and recorded at selected sites, and it is unknown if these results are biased or unbiased. • The relationship between Drilling and trenching has all been conducted perpendicular to the drilling orientation apparent strike of the target pegmatites based on outcrop observations. However drill hole OR 2/85 was drilled toward the north and it is unknown if the intersected pegmatite is oriented east-west or north-south. More work required to establish complex orientation of key mineralised structures has not been confirmedpegmatite swarms in the area. Criteria JORC Code explanation Commentary Sample security • The measures taken to ensure sample security. • No sampling Sample security has not been undertaken by Xxxxxxxxxx although limited historic sampling exists. • Additional details from historic drilling are unknownrecorded. Audits or reviews • The results of any audits or reviews of sampling techniques and data. • No sampling has audits or reviews have been undertaken by Xxxxxxxxxx although limited historic sampling exists. • Additional details from historic drilling are unknowncompleted.

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. • No drilling has been undertaken by Petratherm although limited historical drilling exists. Additional details from historic drilling are unknownverification was carried out and no adjustments were made as the release pertains to geochemical rock chip sampling completed on a reconnaissance scale. 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. • All maps and Rock chip sample locations are recorded using sub-5m accuracy GPS. Coordinates are reported in UTM grid (GDA94 Z53). Drill hole positions have been reproduced from SA Government open file databases and the accuracy of this data is unknownGDA94-MGA Zone 50 Grid system. 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 drilling or Samples are collected on a reconnaissance spacing and are selected based on available outcrop, access and general variation in geology noted. This work is at an early stage and further exploration is required to evaluate the sampling. This sampling has been undertaken by Xxxxxxxxxx although historical drilling exists. • Data spacing is insufficient considered suitable as a first pass reconnaissance evaluation to establish highlight the degree of geological and grade continuity required need for a Mineral Resource estimationfurther exploration. 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. • No drilling has been undertaken by Petratherm although limited historical drilling existsgrid utilised. • The relationship between the drilling orientation Sampling is direct to outcropping geology and the orientation of key mineralised structures has not been confirmedpoint sample locations. Criteria JORC Code explanation Commentary Sample security • The measures taken to ensure sample security. • No sampling has been undertaken Samples were collected on site and transported either to ALS laboratory I Perth or SGS laboratory for analysis, or directly analysed on site by Xxxxxxxxxx although limited historic sampling existshandheld XRF analysis. • Additional details from historic drilling are unknown. Criteria JORC Code explanation Commentary Audits or reviews • The results of any audits or reviews of sampling techniques and data. • No sampling has been undertaken by Xxxxxxxxxx although limited historic sampling exists. • Additional details from historic drilling are unknownaudits completed.

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. • No drilling The historic data cannot be verified and it has been undertaken by Petratherm although limited historical drilling exists. Additional details collected from historic drilling are unknownpublicly available sources. 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. • All maps and locations are The survey method for collar co-ordinates is not always presented in UTM grid (GDA94 Z53)historic data. Drill hole positions Visual checks have been reproduced from SA Government open file databases and the accuracy of this data is unknownapplied where possible using aerial photography and/or Google Earth imagery to locate holes correctly if errors are discovered. 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 drilling or sampling Data has been undertaken by Xxxxxxxxxx although historical drilling exists. • Data spacing is insufficient to establish the degree of geological and grade continuity required for a Mineral Resource estimationcollected at various spacing. Orientation of data in relation to geological structure • Whether the orientation of sampling achieves unbiased sampling • The historic data is to be used as a guide to future exploration and of data in of possible structures and the extent to which this is known, at face value has been collected in a manner that is sensible with relation to considering the deposit type. respect to gross geological trends however more detailed geological • If the relationship between the drilling orientation and the interpretation would be required to assess this further. structure orientation of key mineralised structures is considered to have introduced a sampling bias, this should be assessed and reported if material. • No drilling has been undertaken by Petratherm although limited historical drilling exists. • The relationship between the drilling orientation and the orientation of key mineralised structures has not been confirmed. Criteria JORC Code explanation Commentary Sample security • The measures taken to ensure sample security. • No sampling has been undertaken by Xxxxxxxxxx although limited Due to the historic sampling exists. • Additional details from historic drilling are unknownnature of the data presented, this cannot be determined. Audits or reviews • The results of any audits or reviews of sampling techniques and data. • No sampling has external audits or reviews have been undertaken by Xxxxxxxxxx although limited conducted apart from internal company review as this is publicly available, historic sampling exists. • Additional details from historic drilling are unknowndata.

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 historic drilling data including collar coordinates, hole orientation surveys, total depth, sampling intervals and lithological logging were collated from statutory annual reports and historic digital data files. No drilling indication of drill holes being twinned by previous workers has been observed or documented. It is assumed that industry best practice was used for collection, verification Criteria JORC Code explanation Commentary and storage of historic data. No adjustments to assay data were undertaken by Petratherm although limited historical drilling exists. Additional details from historic drilling are unknown. Location of data points • Accuracy and quality of surveys used to locate drill holes (collar and down-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. • All maps and locations are in UTM grid (GDA94 Z53). Drill hole positions have been reproduced from SA Government open file databases and the accuracy of this data is unknowncollars were surveyed by GPS in GDA94/MGA Zone 51. 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 drilling or Typically sampled in 1-3 metre intervals, skipping intervals of no interest and increasing the frequency of sampling has been undertaken by Xxxxxxxxxx although historical drilling existsdepending on the geology observed. • Data spacing Insufficient data is insufficient available to establish the degree of geological and grade continuity required for estimation of a Mineral Resource estimationresource. No compositing of data has been applied and assay results are reported as received. 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. • Historical drill holes were oriented, as far as reasonably practical, to intersect the centre of the targeted mineralised zone perpendicular to the interpreted strike orientation of the mineralised zone. The geometry of drill holes relative to the mineralised zones achieves unbiased sampling of this deposit type. No drilling orientation-based sampling bias has been undertaken by Petratherm although limited historical drilling exists. • The relationship between the drilling orientation and the orientation of key mineralised structures has not been confirmed. Criteria JORC Code explanation Commentary Sample security • The measures taken to ensure sample security. • No sampling has been undertaken by Xxxxxxxxxx although limited historic sampling exists. • Additional details from historic drilling are unknown. Audits or reviews • The results of any audits or reviews of sampling techniques and data. • No sampling has been undertaken by Xxxxxxxxxx although limited historic sampling exists. • Additional details from historic drilling are unknownidentified.