Announcement PDF ASX Announcement 15 January 2025 Caladan Air-Core Drilling Demonstrates Discovery Potential With 11m @ 1.7g/t Au from 97m to EOH • Air-core drilling results from Caladan returned several significant intercepts, including:  11m*1 @ 1.7 g/t Au from 97m to end-of-hole in 24IWBAC063, • including 3m @ 3.5 g/t Au from 102m. • The significant intercepts are associated with the >3.0km long historic, low-level, in-situ Au regolith anomaly CAL-01 (See ASX release 15 July 2024). • The Caladan Fold structure is approximately 8km long and 3km wide. • Mineralisation in 24IWBAC063 is hosted within an interpreted intermediate volcaniclastic unit proximal to a mafic contact. • The new prospect has been named Arrakis, and follow-up drilling will be scheduled for the coming weeks with the RC rig already on-site at Siona. • Only a single line of air-core drilling was completed across Caladan; additional heritage surveys are required prior to further drilling. • All assay results from the 2024 first-pass air-core drilling program have been received. Seventeen AC holes were completed for 1,688m of drilling, testing across 2.3km of the Caladan Fold stratigraphy in October 2024. • Drilling programs are underway and upcoming across several target areas and prospects, including diamond drilling at Siona. *1 All intercept lengths are reported as down-hole lengths as the true width is unknown. For further information or to ask questions in relation to this announcement, please visit our Investor Hub at https://investorhub.yandalresources.com.au/link/WPGOZP. Contact Us A: Level 1 Unit 5/62 Ord Street, West Perth WA 6005 T: +61 (0)8 9389 9021 E: yandal@yandalresources.com.au yandalresources.com.au | ASX:YRL Board and Management Chris Oorschot Managing Director/CEO Greg Evans Non-Exec Chair Katina Law Non-Exec Director Tim Kennedy Non-Exec Director Greg Fitzgerald Company Secretary Commenting on the new results, Yandal Resources’ Managing Director, Mr. Chris Oorschot, said: “This is an extremely satisfying result for Yandal and is the product of excellent work completed by the Exploration Team. The Caladan target area was only a concept six months ago. The re-capture and analysis of historic data identified a 3km long low-level geochemical anomaly under transported cover associated with the Caladan Fold axis. To have an intercept of this tenor after completing one line of first-pass air-core drilling within this large-scale geochemical anomaly is highly encouraging and may represent the emergence of a new greenfield discovery. We are very excited by these initial results and will look to complete follow-up drilling on the cleared air-core line as soon as possible, and more broadly, preparations are underway for a larger air-core program across the Caladan target area.” Yandal Resources Ltd (ASX: YRL, “Yandal Resources” or the “Company”) is pleased to advise that it has received all assay results from the first line of air-core drilling across the large-scale Caladan target area. Seventeen air-core (AC) holes were drilled along a single line that transects the core of the Caladan Fold for a total of 2,688m (See Figure 2). The Caladan target area (within E 53/1843, E 53/2304, E 53/2192 and E 53/1882) is part of the broader Ironstone Well–Barwidgee (IWB) Gold Project (see Figure 4), located approximately 60km north of Northern Star’s (ASX: NST) Bronzewing mining complex, 60km south of the Jundee mining complex (ASX: NST), and 18km north of the emerging Siona discovery, within the Yandal Greenstone Belt. The Caladan target area is an early-stage, large-scale exploration search space identified following the completion of a ground gravity survey in early 2024 (see ASX releases dated 11 June 2024 and 15 July 2024). In late 2024, air-core drilling was completed along one line across the core of the Caladan target area, testing the core of the CAL-01 anomaly. The AC results represent the first effective drilling (testing the full regolith sequence through transported cover) across the Caladan target area. Holes are variably spaced between 200m to 50m along the single drill line. The significant results were intercepted close to the core of the > 3.0km long Cal-01 geochemical anomaly (See Figures 1 & 2). Follow-up drilling on the existing AC line will be scheduled in the coming weeks, and the Company is scheduling a heritage survey to clear additional lines for a large-scale AC drilling program that will explore along strike to both the north and south. yandalresources.com.au | ASX:YRL 2 Caladan Air-Core Results All intercept lengths are reported as down-hole lengths as the true width is unknown. The 2024 AC drilling program across the Caladan target area included seventeen holes for 1,688m of drilling, variably spaced (80m to 200m) along a single northeast-trending (towards 045°) drilling line. Results from the 2024 AC drilling program across the Caladan fold returned a cluster of significant intercepts, all within or proximal to the in-situ regolith Au anomaly CAL-01 (See Figures 1 and 2), including: o 11m @ 1.7 g/t Au from 97m to end-of-hole in 24IWBAC063, including  3m @ 3.5 g/t Au from 102m o 2m @ 1.2 g/t Au from 74m in 24IWBAC013 o 4m @ 0.5 g/t Au from 88m in 24IWBAC016 o 3m @ 0.2 g/t Au from 81m in 24IWBAC015 The significant intercept in 24IWBAC0063 is located on the northeast margin of the CAL-01 regolith anomaly. This result, combined with the adjacent intercepts, demonstrates a potential correlation between the shallow CAL-01 regolith Au anomaly and a primary mineralisation source. This new prospect has been named Arrakis. The 11m @ 1.7g/t intercept within 24IWBAC063 is hosted within an interpreted sheared intermediate (andesite) volcaniclastic unit, displaying strong sericite alteration, up to 3% veining and 5-10% fine disseminated sulphides as a combination of both pyrite and arsenopyrite (see Figure 3). The Arrakis Prospect is overlain by 10-14m of transported cover. yandalresources.com.au | ASX:YRL 3 Figure 1: Cross section showing air-core results from 24IWBAC015, 24IWBAC016 and 24IWBAC063 with a simple preliminary interpretation of geology. The section location is shown in Figure 2. The section shows all drilling +/-25m away from the section plane yandalresources.com.au | ASX:YRL 4 Figure 2: A collar plan over the Caladan target area, showing simplified bedrock geology interpretation across the Caladan and northern Irulan target areas within the IWB Gold Project. The collars of the 2024 air-core drilling and the historic 1995 RAB drilling are plotted and thematically coloured by max Au (g/t Au). In-situ regolith Au (ppb) anomalies derived from the 1995 RAB drilling are contoured on the plan. The blue outline represents the YRL tenements. The underlying processed ground gravity image is derived from Bouguer anomaly 0.5 vertical derivative with north-west shade and a non-linear colour scale image. yandalresources.com.au | ASX:YRL 5 20mm Figure 3: Air-core chips/stubs from 107-108m (bottom-of-hole) of 24IWBAC063 displaying foliated, medium-grained, intermediate (andesitic) volcaniclastic lithology, with strong sericite alteration, up to 3% veining and 5-10% fine disseminated sulphides as a combination of both pyrite and arsenopyrite. yandalresources.com.au | ASX:YRL 6 Caladan Target Area The Caladan target area presents a large-scale northwest plunging (interpreted) fold, truncated by the Idaho Shear, interpreted as a second-order structure linking the Ockerburry Shear Zone to the east and the Barwidgee Shear Zone to the west (see Figure 4). The only systematic drilling across the fold structure was completed in 1995 (see ASX 15 July 2024), where shallow vertical RAB holes on a 400m by 400m spacing were completed. The drilling was designed to penetrate through shallow transported cover and sample in-situ upper saprolite clays. A review of this drilling yielded several low-level saprolite anomalies, the largest of which (the 3km long CAL-01 anomaly) is situated in the core of the Caladan Fold (see Figure 2 above). The Caladan Fold structure is 3km wide, over 8km long, and lies under 2m to 20m of loose to partially cemented transported cover (the average depth of transported cover is 8m). The broad structural setting is similar to the Kalgoorlie district, where the Boulder-Lefroy Fault truncates the folded mafic stratigraphy of the Boomerang anticline. The under-explored nature of the Caladan Fold, combined with several low-level regolith anomalies, presents the Caladan target area as a high-priority early-stage exploration target area within the Company’s project portfolio. In addition to the significant intercept, the air-core drilling has also confirmed gravity highs to coincide with fractionated dolerites, separated by a sequence dominated by variably altered intermediate (andesite) volcaniclastics. Drilling results combined with observed geology have reaffirmed the Company’s prioritisation of the Caladan target area within the 2025 exploration strategy. Next Steps Follow-up drilling will be scheduled and completed across the Arrakis Prospect in the coming weeks. Follow-up drilling will be limited to the existing single air-core line until further heritage surveys can be completed to clear additional drill lines across the 8km long, 3km wide Caladan Fold structure. This will include drill lines north and south of the Arrakis intercepts. yandalresources.com.au | ASX:YRL 7 Figure 4: A simplified bedrock geology interpretation across the IWB Gold Project with the main features of the preliminary ground gravity interpretation, including conceptual target areas. The red oval marks the position of the Flushing Meadows Gold Deposit, and the blue outline represents the YRL tenement outline. The underlying processed ground gravity image is derived from Bouguer anomaly 0.5 vertical derivative with north-west shade and a non-linear colour scale image. yandalresources.com.au | ASX:YRL 8 Looking Ahead The Company enters CY 2025 with a strong cash position and a very active March Quarter scheduled. Notable near-term activities and news flow include; 1. 2024 Air-core drilling results from across the Irulan target area are anticipated before the end of January; 2. 2025 RC Drilling has commenced across the New England Granite, prioritising structural targets proximal to the Siona discovery, with first results anticipated in February; 3. Follow-up RC drilling to be completed across the Arrakis Prospect in January; 4. Diamond drilling at Siona is scheduled to commence in January. Authorised by the board of Yandal Resources For further information, please contact: Chris Oorschot Managing Director Yandal Resources Limited yandal@yandalresources.com.au yandalresources.com.au | ASX:YRL Greg Fitzgerald Company Secretary +61 8 9389 9021 yandal@yandalresources.com.au 9 Relevant Previous ASX Announcements o Air-core Drilling Commences Across Caladan and Irulan, 10 October 2024 o Oblique Diamond Drilling Results, 3 September 2024 o IWB Soil Results and NEG Diamond Drilling Complete, 12 August 2024 o Large-scale Gold Anomalies Across Emerging Targets, 15 July 2024 o Gold Coast Investment Showcase Presentation, 20 June 2024 o Exploration Update – IWB Ground Gravity Survey, 11 June 2024 yandalresources.com.au | ASX:YRL 10 About Yandal Resources Limited Yandal Resources has a portfolio of advanced gold exploration projects in the highly prospective Yandal and Norseman-Wiluna Greenstone Belts of Western Australia. Yandal Resources’ gold project locations. Table 1 – Yandal Resources Ltd - Mineral Resource Summary Indicated Inferred Deposit Tonnes Grade Au Tonnes Grade Au (‘000s) (g/t) (oz) (‘000) (g/t) (oz) Ironstone Well Flushing Meadows1 2,141 1.3 91,000 5,245 1.1 177,000 Mt McClure Challenger2 718 1.9 44,000 3 Success 1,255 1.9 75,000 Parmelia4 252 2.1 17,000 5 HMS Sulphur 1010 1.2 39,000 6 Gilmore 134 1.7 7,200 Sub-total - MMC 3,369 1.7 182,200 Gordons Gordons Dam7 365 1.7 20,000 2,141 Grand-total8 8,979 1.3 379,200 1.3 91,000 Total Tonnes (000’s) Grade (g/t) Au (Oz) 7,386 1.1 268,000 718 1.9 44,000 1,255 1.9 75,000 252 2.1 17,000 1010 1.2 39,000 134 3,369 1.7 1.7 7,200 182,200 365 1.7 20,000 11,120 1.4 470,200 Due to the effects of rounding, totals may not represent the sum of the individual components. 1. Reported above 0.5g/t Au lower cut-off grade; refer to Yandal Resources Ltd ASX announcement dated 4 November 2020 for full details. 2. Reported above 1.0g/t Au lower cut-off grade; refer to Yandal Resources Ltd ASX announcement dated 22 August 2022 for full details 3. Reported above 1.0g/t Au lower cut-off grade; refer to Yandal Resources Ltd ASX announcement dated 6 September 2022 for full details.4. Reported above 1.0g/t Au lower cut-off grade; refer to Yandal Resources Ltd ASX announcement dated 20 September 2022 for full details 5. Reported above 0.5g/t Au lower cut-off grade within this announcement 6. Reported above 1.0g/t Au lower cut-off grade within this announcement 7. Reported above 1.0g/t Au lower cut-off grade; refer to Yandal Resources Ltd ASX announcement dated 6 April 2023 for full details 8. All Resources are reported as global estimates, not constrained by optimised pit shells. yandalresources.com.au | ASX:YRL 11 Competent Person Statement The information in this document related to Exploration Targets and Exploration Results, geology and data compilation is based on information reviewed or compiled by Mr Christopher Oorschot, a Competent Person who is a Member of The Australasian Institute Geoscientists. Mr Oorschot is the Managing Director of the Company, is a full-time employee and holds shares and options in the Company. Mr Oorschot has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Mr Oorschot consents to the inclusion in this announcement of the matters based on this information in the form and context in which it appears. The information in this announcement that relates to the Flushing Meadows, Mt McClure and Gordons Dam Mineral Resource Estimates is based on information compiled and generated by Andrew Bewsher, an employee of BM Geological Services Pty Ltd (“BMGS”). Both Andrew Bewsher and BMGS hold shares in the company. BMGS consents to the inclusion, form and context of the relevant information herein as derived from the original resource reports. Mr Bewsher has sufficient experience relevant to the style of mineralisation and type of deposit under consideration and to the activity which is being undertaken to qualify as a Competent Person as defined in the 2012 Edition of the JORC ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. YRL confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement. The company confirms that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original market announcement. Forward Looking Statements This document may contain certain forward-looking statements. Forward-looking statements include, but are not limited to, statements concerning Yandal Resources Limited’s (Yandal’s) current expectations, estimates and projections about the industry in which Yandal operates, and beliefs and assumptions regarding Yandal’s future performance. When used in this document, words such as “anticipate”, “could”, “plan”, “estimate”, “expects”, “seeks”, “intends”, “may”, “potential”, “should”, and similar expressions are forward-looking statements. Although Yandal believes that its expectations reflected in these forwardlooking statements are reasonable, such statements are subject to known and unknown risks, uncertainties and other factors, some of which are beyond the control of Yandal and no assurance can be given that actual results will be consistent with these forward-looking statements. Drilling results presented indicate geological potential for mineralisation but there can be no certainty that these results will eventually form part of a Mineral Resource Estimate. yandalresources.com.au | ASX:YRL 12 Table 2 – Caladan air-core collar location summary for this release. Prospect / Target Hole ID Hole type East Caladan 24IWBAC007 AC Caladan 24IWBAC008 AC Caladan 24IWBAC009 Caladan 24IWBAC010 Caladan Caladan North (m) RL Azimuth Dip Total Depth (m) (mAHD) (degrees) (degrees) 285896 7026635 528.2 223 -60 70 286033 7026775 527.9 223 -60 58 AC 286172 7026928 525.0 223 -60 72 AC 286308 7027075 521.3 223 -60 115 24IWBAC011 AC 286409 7027187 524.7 223 -60 82 24IWBAC012 AC 286516 7027291 524.4 223 -60 97 Caladan 24IWBAC013 AC 286570 7027347 526.1 223 -60 147 Caladan 24IWBAC014 AC 286638 7027411 523.2 223 -60 115 Caladan 24IWBAC015 AC 286720 7027506 525.1 223 -60 94 Caladan 24IWBAC016 AC 286851 7027644 525.3 223 -60 113 Caladan 24IWBAC017 AC 286977 7027774 525.1 220 -60 109 Caladan 24IWBAC018 AC 287115 7027927 522.5 223 -60 123 Caladan 24IWBAC019 AC 287258 7028074 527.8 223 -60 93 Caladan 24IWBAC020 AC 287397 7028214 522.5 219 -60 73 Caladan 24IWBAC062 AC 286679 7027453 522.1 223 -60 108 Caladan 24IWBAC063 AC 286818 7027602 526.4 223 -60 108 Caladan 24IWBAC064 AC 286925 7027716 525.1 223 -60 111 (m) Table 3 – Caladan Target Area - Summary of significant air-core drilling assay results >0.1g/t Au with no more than 2m of continuous internal waste included unless otherwise stated. All intercept lengths are reported as down-hole lengths. Hole ID Sample type / Sub From (m) To (m) Interval (m) Au (g/t) Comment 24IWBAC007 1m Sample NSA 24IWBAC008 1m Sample NSA 24IWBAC009 1m Sample NSA 24IWBAC010 1m Sample NSA 24IWBAC011 1m Sample NSA 24IWBAC012 1m Sample NSA 24IWBAC013 1m Sample 74 76 2 1.2 Transitional weathering 24IWBAC013 1m Sample 90 91 1 0.2 Transitional weathering 24IWBAC013 1m Sample 126 130 4 0.1 Transitional weathering 24IWBAC014 1m Sample 87 88 1 0.2 Transitional weathering 24IWBAC015 1m Sample 39 40 1 0.1 Completely weathered 24IWBAC015 1m Sample 81 84 3 0.2 Transitional weathering 24IWBAC016 1m Sample 88 92 4 0.5 Transitional weathering 24IWBAC016 1m Sample 94 95 1 0.1 Transitional weathering 24IWBAC017 1m Sample 10 11 1 0.1 Transported cover 24IWBAC018 1m Sample 8 9 1 0.1 Transported cover 24IWBAC018 1m Sample 40 41 1 0.1 Transitional weathering 24IWBAC018 1m Sample 82 83 1 0.2 Transitional weathering 24IWBAC019 1m Sample 17 18 1 0.1 Completely weathered 24IWBAC020 1m Sample NSA yandalresources.com.au | ASX:YRL 13 From (m) 24IWBAC062 Sample type / Sub 1m Sample NSA 24IWBAC063 1m Sample 24IWBAC063 Hole ID To (m) Interval (m) Au (g/t) Comment 80 81 1 0.2 Transitional weathering 1m Sample 92 93 1 0.6 Transitional weathering 24IWBAC063 1m Sample 97 108 11 1.7 24IWBAC063 Including 102 105 3 3.5 Transitional - mineralisation to the bottom of the hole 24IWBAC064 1m Sample 0 3 3 0.2 Transported cover 24IWBAC064 1m Sample 82 83 1 0.2 Transitional weathering 24IWBAC064 1m Sample 93 95 2 0.2 Transitional weathering NSA - no significant assays. yandalresources.com.au | ASX:YRL 14 Appendix 1 – Ironstone Well-Barwidgee Gold Project, Caladan Air-Core Drilling JORC Code (2012) Table 1, Sections 1 and 2 Mr Christopher Oorschot, Managing Director of Yandal Resources, compiled the information in Section 1 and Section 2 of the following JORC Table 1 and is the Competent Person for those sections. The following Table and Sections are provided to ensure compliance with the JORC Code (2012 edition) requirements for the reporting of Exploration Results. Section 1 Sampling Techniques and Data 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 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 (e.g. ‘reverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a • ASX Announcement 15 January 2025 Yandal Resources has completed a single line of Air-Core (AC) drilling across the core of the Caladan Fold structure, The drilling involved an 85mm Air-core blade reaming down to an average down-hole depth of 98m. Hole depths vary between 58m to 147m. Holes were drilled at an angle of -60° to the southwest. Groundwater was encountered during the process of drilling; however, water volumes were well managed, with only one hole being stopped due to excess groundwater. Yandal Resources (YRL) Air-core drilling samples were collected via a rig-mounted hydraulically operated cyclone and splitter. One split was collected for each meter and then sent to a lab for further analysis. Historic RAB drilling completed by Eagle Mining and Hunter Resources was detailed in the ASX release dated 15 July 2024, the original open-file reports are referenced below: o For historic RAB drilling completed by Eagle Mining in 1995, derived from WAMEX Report A047408, samples were taken over discrete lithological changes of varying lengths. Holes were terminated once a recognisable saprolitic horizon was intercepted. o For historic RAB drilling completed by Hunter Resources in 1995, derived from WAMEX Report A047408, samples were collected as 4m composites from the transported/residual interface to the bottom of the hole. For YRL Air-core drilling, the cone splitter is regularly cleaned and inspected. The 1m bulk samples are laid out on the ground in drill order. These samples are regularly inspected for contamination, and the volume of the bulk sample is monitored. The cyclone was routinely cleaned to ensure no material buildup. AC drilling was used to obtain 1m samples from which a portion, between 1-3kg in weight, was dispatched to one of the two following labs: o Aurum Laboratories Pty Ltd: samples were crushed and pulverised to produce a 50g charge for fire assay with an AAS (atomic absorption spectroscopy) finish for gold determination with a 0.01ppm detection limit. o Intertek Minerals: samples were crushed and pulverised to produce a 50g charge Page 15 Criteria JORC Code explanation Commentary for lead collection fire assay with OES (Optical Emission Spectroscopy) finish for gold determination with a 0.005ppm detection limit. 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 (e.g. submarine nodules) may warrant disclosure of detailed information. 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). • For YRL Air-core drilling, an 85mm Air-core blade was used. 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. • For YRL holes, air-core drilling recoveries are visually assessed by the supervising geologist, and any low-volume or oversized sample piles were recorded, along with any damp or wet samples. Drill depths are routinely verified at the completion of each drill rod (every 6m). Within the limited drilling completed, there appears to be no correlation between sample recovery and sample grade. 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. 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. ASX Announcement 15 January 2025 • • For YRL drilling, all air-core holes have been logged in full by a qualified and experienced geologist. Logging data was captured in MX Deposit data capture and database software. All drilled intervals were logged for colour, weathering, lithology, deformation, veining and sulphide species. End-of-hole samples were sieved and retained in labelled and annotated chip trays. Chip trays are transported to Perth for long-term storage and are available for review. In addition to geological logging, the magnetic susceptibility of each interval is measured using a KT-10 magnetic susceptibility metre, with a sensitivity of 1x10-6 SI Units. Magnetic susceptibility readings are quantitative in nature. Page 16 Criteria JORC Code explanation Commentary 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. • • • YRL Air-core drilling utilised a rig-mounted cone splitter installed directly below and in line with the rig-mounted cyclone. One 1-3kg sub-samples was collected into calico bags labelled with a unique alpha-numeric ID. Most samples collected were dry; if samples were damp or wet, this was noted in the sample records. Field duplicates were collected at an initial rate of 1 duplicate for every 50 samples collected. Standards and blanks were routinely inserted into the sample sequence For labs used by YRL, internal lab quality control measures include lab duplicates and the insertion of lab standards and blanks 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. 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. • • • • ASX Announcement 15 January 2025 For YRL air-core drilling, samples were assayed at the following labs using the following methods: o Aurum Laboratories in Beckenham, Western Australia, assayed using a 50g fire assay with AAS (atomic absorption spectroscopy) finish for gold analysis with a 0.01ppm detection limit. o Intertek Minerals in Maddington, Western Australia, assayed using a 50g charge for lead collection fire assay with OES (Optical Emission Spectroscopy) finish for gold determination with a 0.005ppm detection limit. o Both are considered a total digest and appropriate for the targeted style of mineralisation. Magnetic susceptibility measurements were taken every meter using a KT-10 V2 instrument with a sensitivity of 1x10-6 SI Units. YRL QAQC field protocols include the insertion of commercially prepared certified reference material (CRM) and blank material at a rate of approximately 1 CRM/blank for every 20 samples collected. CRMs used are un-identifiable by the lab when received. QAQC performance is monitored upon receipt of each batch of results and re-assessed once all samples for a program are received. Laboratory QA/QC protocols involve inserting internal lab standards using CRMs, blanks, Page 17 Criteria Verification of sampling and assaying JORC Code explanation 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. Commentary • • • • Discuss any adjustment to assay data. 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 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 conti