Announcement PDF ASX Announcement 21 May 2025 Siona Diamond Drilling Results & Caladan Air-Core Drilling to Commence Next Week • All results from diamond drilling across the Siona Discovery have been received, with intercepts including: o 16.3m @ 0.5 g/t Au from 322.2m in 25IWBRD0003 o 29.1m @ 0.4g/t Au from 282.9m in 25IWBRD0010 o 6.4m @ 1.5 g/t Au from 103.5m in 25IWBDD0009, including • 0.3m @ 3.6g/t Au from 105.8m • 0.4m @ 12.7g/t Au from 108.3m • 0.4m @ 6.2g/t Au from 109.5m • Results demonstrate that broad, low-grade mineralisation with internal higher-grade zones characterise the Siona mineralised system. • Geological interpretations suggest higher-grade zones within the broad mineralisation envelope are associated with intervals of increased quartz veining. • Looking ahead, exploration across the New England Granite target area will focus on testing for significant mineralised positions across the large-scale granodiorite host. • Diamond drilling data has allowed the development of a simple set of targeting criteria to prioritise structural targets derived from recent geophysics. • The next phase of drilling across the New England Granite will commence post air-core drilling across the Caladan target area and will include broadly spaced lines of air-core drilling across the Salusa Prospect and several structural targets along the western margin. • The 12,500m Caladan air-core drilling program is on schedule to commence in the last week of May. Contact Us A: Suite 1, Level 3, 1138 Hay 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 Greg Fitzgerald Company Secretary For further information or to ask questions in relation to this announcement, please visit our Investor Hub at https://investorhub.yandalresources.com.au/link/6eWwje Commenting on the new results, Yandal Resources’ Managing Director, Mr. Chris Oorschot, said: “With the Siona discovery, Yandal Resources has demonstrated the capacity for the New England Granite to host gold mineralisation. Critically, Yandal Resources controls the full extent of this newly defined 2km by 4km granodiorite host within the Yandal Greenstone Belt. With diamond drilling complete, the team are now armed with an advanced understanding of the geological controls to mineralisation at Siona and is well placed to target and identify similar and potentially larger opportunities across the New England Granite. After six months of exploration following the discovery, it is becoming clear that gold mineralisation develops whenever the ghost granodiorite is deformed. Yandal Resources going forward will look to identify the optimal structural setting for gold mineralisation along the intrusive margin or internal to the NEG. Given the scale of the intrusive host, the Company will shift its focus to air-core drilling to test key structural targets more efficiently.” Yandal Resources Ltd (ASX: YRL, “Yandal Resources” or the “Company”) is pleased to advise that it has received all assay results from diamond drilling across the Siona discovery within the New England Granite (NEG) target area. Four new diamond holes and two diamond tails were drilled across Siona (See Figure 1). The New England Granite target area, including the Siona (within E 53/1843), is part of the broader Ironstone Well-Barwidgee Gold Project (see Figure 6), located 60km south of the Jundee mining complex (ASX: NST) within the Yandal Greenstone Belt. Diamond drilling results have confirmed wide, low-grade mineralisation continuity at depth. Geological analysis suggests continuous higher-grade mineralisation occurs within the broader low-grade mineralisation, with the plunge direction controlled through the interaction of the deformed intrusive margin and oblique cross-cutting shear zones. Diamond drilling has provided critical geological observations that enable Yandal Resources to model the broader mineralised system that hosts the Siona Discovery within the New England Granite. A key observation from diamond drilling is that mineralisation is developing in multiple geometries and wherever the host granodiorite has been deformed. It is likely that the Siona mineralised system is not unique to the New England Granite. Given the broader structural setting of the intrusive host, including several large-scale offsetting structures and proximity regional shear zones, additional mineralisation occurrences are likely (see Figure 4). This concept is further supported by RC drilling completed in early 2025, demonstrating mineralisation potential at the recently identified Salusa Prospect (See ASX release 15 April 2025). yandalresources.com.au | ASX:YRL 2 Siona Diamond Drilling Results The Siona diamond drilling program was designed to test below a number of significant RC intercepts and provide detailed geological information. The program included four holes for a total of 1,498m of drilling (including RC pre-collars). In addition to this, two RC holes that ended in mineralisation (24IWBRC0039 and 24IWBRC0056) were extended with short diamond tails for a further 143m of diamond drilling (See Figure 1). Diamond hole 25IWBRD0003 (Figure 2) was drilled approximately 170m below discovery hole 24IWBRC0039, and 25IWBRD0010 was drilled to a similar depth but along strike to the northwest. While both holes intercepted broad low-grade mineralisation (>0.1g/t Au), diamond drilling did not replicate the higher grade mineralisation (>1.0g/t Au) identified in the overlying holes (see Figure 1). Better intercepts include: o 16.3m @ 0.5 g/t Au from 322.2m in 25IWBRD0003, (See Figure 2) o 29.1m @ 0.4 g/t Au from 282.9m in 25IWBRD0010 Diamond holes 25IWBRD0008 (Figure 3) and 25IWBDD0009 were drilled below and along strike of hole 24IWBRC0050, which intercepted the highest-grade mineralisation during the 2024 RC program (see ASX release 11 December 2024). The best results from these two diamond holes include: o 6.4m @ 1.4 g/t Au from 103.5m in 25IWBDD0009, including o  0.3m @ 3.6g/t AU from 105.8m  0.4m @ 12.7g/t Au from 108.3m  0.4m @ 6.2g/t Au from 109.5m 8.0m @ 0.8 g/t Au from 310.0m in 25IWBRD0008, (see Figure 3) The diamond tail on discovery hole 24IWBRC0039 (now 24IWBRD0039) has extended mineralisation intercepted in RC drilling to: o 116m @ 1.0 g/t Au from 97m in 24IWBRD0039 The diamond tail completed on RC hole 24IWBRC0056 (now 24IWBRD0056) has returned the following intercepts: o 14.5m @ 0.6g/t Au from 270m in 24IWBRD0056  Previously reported as 11m @ 0.5g/t Au from 270m to EOH o 9.9m @ 0.5 g/t Au from 295.4m in 24IWBRD0056 o 0.4m @ 11.5g/t Au from 318.1m in 24IWBRD0056 yandalresources.com.au | ASX:YRL 3  Within the sheared mafic outside of the granodiorite All reported intercepts (including those previously reported) occur within a broader zone of lowgrade mineralisation (>0.1g/t Au). These low-grade intercepts have been reported in Table 4. 24IWBRC0051 24IWBRC0051 25IWBRD0008 24IWBRC0049 24IWBRC0044 24IWBRC0052 25IWBRD0010 24IWBRC0047 25IWBRD0003 25IWBDD0009 24IWBRD0039 24IWBRC0050 25IWBRC0011 24IWBRC0048 24IWBRC0054 24IWBRC0055 24IWBRC0046 YRLRC1154 24IWBRC0057 24IWBRD0056 24IWBRC0038 YRLRC1153 24YRLEIS0002 Figure 1: The collar plan shows all RC and diamond drilling completed across Siona with individual down-hole assays plotted on the drill string. A surface projection of the intrusive contact and major structures is also plotted. The planes of sections A and B are also shown. yandalresources.com.au | ASX:YRL 4 Section A SW NE Surface Transported Cover BOT BOCO Basalt 35m @ 1.0 g/t Au Incl. 7m @ 1.4 g/t Au & 5m @ 2.5g/t Au New England Granite 107m @ 1.0 g/t Au Incl. 5m @ 3.2 g/t Au & 33m @ 1.4 g/t Au 16.3m @ 0.5g/t Au & 5.0m @ 0.6g/t Au Figure 2: Cross-section A showing RC and diamond drilling results from Siona with a simple interpretation of geology. The section location is shown in Figure 1. The section shows all drilling +/-25m away from the section plane. yandalresources.com.au | ASX:YRL 5 Section B SW NE Surface Transported Cover BOT BOCO 6m @ 2.5 g/t Au Incl. 2m @ 7.0 g/t Au 17m @ 4.9 g/t Au Incl. 1m @ 61.9 g/t Au within 6m @ 12.8 g/t Au Basalt 6.2m @ 0.4 g/t Au & 7m @ 0.4 g/t Au New England Granite 8m @ 0.8 g/t Au Incl. 0.9m @ 4.7 g/t Au Figure 3: Cross-section B showing RC and diamond drilling results from Siona with a simple interpretation of geology. The section location is shown in Figure 1. The section shows all drilling +/-25m away from the section plane. yandalresources.com.au | ASX:YRL 6 New England Granite Targeting The completion of diamond drilling has allowed a detailed set of geological observations to be made and analysed. The most significant observation made by Yandal Resources is that mineralisation develops wherever deformation occurs, both proximal and distal to the host intrusive margin. This observation has been reinforced by the recently completed RC exploration drilling program (See ASX release 14 April 2025). The observation highlights the suitability of the granodiorite in acting as a host for gold mineralisation. It allows the development of a simple set of targeting criteria to prioritise structural targets derived from geophysics. With the receipt of all diamond drilling results, the targeting criteria for the New England Granite have been revised to include: - Targeting structures that interact with the intrusive margin with observable offsets (lateral or vertical); - Prioritise northwest-trending features and northeast-striking conjugate structures of a similar relative age within the intrusive away from the intrusive margin; - Prioritise structures that are oblique to the granodiorite margin. In addition to the above, the concept of gold mineralisation occurring deep into the intrusive away from the intrusive contact is yet to be adequately tested. Figure 4 shows the priority structural targets that will be the focus of air-core drilling in 2025. yandalresources.com.au | ASX:YRL 7 Figure 4: Plan showing processed infill ground gravity dataset (BA267 1VD northwest shade linear colour scale) across the New England Granite area. The plan includes the updated interpretation of the intrusive margin and a preliminary interpretation of structures interacting with the intrusion. Broad structural targets include Salusa and NEG01-NEG04. yandalresources.com.au | ASX:YRL 8 Key Geological Observations Detailed logging demonstrates a broad zone (100m wide) of deformation and alteration broadly parallel to the northwest-striking intrusive contact. A range of both brittle and ductile deformation textures is observed, with abundant evidence of multiple deformation events. Two trends dominate observed ductile fabrics: - Trend A: a northwest striking (320-330°), sub-vertical (dipping steeply to either the northeast or southwest) population linked with the Siona Shear Zone, and - Trend B: an oblique and possibly later west-northwest striking (~300°) and sub-vertical (dipping to either the northeast or southwest) population. Mineral lineations and intersection lineations are sub-horizontal, with kinematic indicators suggesting strong sinistral (top to the left) strike-slip dominant movement. The latest deformation event is a series of narrow west-northwest striking sub-vertical mylonite shears. Observation from the diamond core confirms that the intrusive contact is broadly subvertical, striking towards the northwest, and always deformed, with the deformation and alteration style varying along strike. Broad, low-grade mineralisation is associated with moderately foliated and/or heavily fractured granodiorite with pervasive silica-sericite alteration, and 2-5% pyrite and arsenopyrite as disseminations or within fractures. Higher grade mineralisation is linked to 1-5cm wide, quartz (+/- carbonate, feldspar, chlorite) veins. Veins appear relatively early and are often deformed or crosscut by later fractures or veins. These veins occupy several geometries, and broad intervals of increased veining are usually bracketed by interpreted shear zones. Visible gold has been observed within these veins on numerous occasions within both RC and diamond core samples (see Figure 5). The broader distribution of this vein set has not been confirmed by diamond drilling, but is likely controlled by the interplay of the two dominant shear trends A and B. Broad high-grade mineralisation that was observed in RC holes 24IWBRD0039 (116m @ 1.0g/t Au), 24IWBRC0046 (35m @ 1.0 g/t Au), and 24IWBRC0047 (79m @ 1.0 g/t Au) has not been replicated within diamond drilling. Structural interpretations suggest the zone has a strike length of 50-80m and is plunging steeply to the southeast. This broad higher-grade domain is associated with a flexure in intrusive contact. yandalresources.com.au | ASX:YRL 9 Figure 5: This is an example of visible gold (see dashed white circle) hosted within quartz veining that cross-cuts the host granodiorite. The photo shows HQ2 core from 25IWBRD0010, with the 0.3m sample interval grading 1.6g/t Au from 246.9m. Next Steps Air-core drilling will commence across the Caladan target area in late May. Once the program is complete, the air-core rig will be mobilised to the New England Granite target area, where broad-spaced drilling will begin to test structural targets, including the Salusa Prospect. Heritage surveys across the New England Granite are scheduled for late May / early June. These surveys will clear broad-spaced lines across the western side of the NEG and open up additional drill positions across Siona. yandalresources.com.au | ASX:YRL 10 Looking Ahead The Company maintains a strong cash position and has a very active June and September Quarters scheduled. Notable near-term activities include; 1. A 12,500m air-core drilling program is scheduled to commence in the last week of May, testing for a large-scale mineralised system across the Caladan target area; 2. First results from the Caladan air-core program are anticipated in July and will be received throughout the September Quarter; 3. Air-core drilling across New England Granite structural targets will commence following the completion of the Caladan air-core program. 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 11 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. Jundee Wiluna Ironstone WellBarwidgee Wiluna Caladan Flushing Meadows Mt Keith Mt McClure New England Granite Bronzewing Kathleen Valley Bellevue Darlot Leinster Thunder Box King of the Hills Figure 6: Yandal Resource exploration Project locations within the Yandal Greenstone Belt. yandalresources.com.au | ASX:YRL 12 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 1.7 7,200 3,369 1.7 182,200 365 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. 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. yandalresources.com.au | ASX:YRL 13 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. Table 2 – Siona and New England Granite RC and diamond drilling collar location summary for this release. Total Depth Prospect / Target Hole ID Hole type East North (m) (mAHD) (degrees) (degrees) NEG 25IWBRC0029 RC 295501 7015252 503.0 225.1 -59.2 270 NEG 25IWBRC0030 RC 295503 7015053 502.0 45.3 -60.3 264 NEG 25IWBRC0031 RC 295894 7013850 503.0 268.9 -60.1 234 NEG 25IWBRC0032 RC 295756 7014754 501.0 3.6 -59.8 261 Siona 25IWBRC0003 RCD 295849 7013748 504.6 -54.4 226.0 435.7 Siona 25IWBRD0008 RCD 295668 7013845 505.0 -60.4 226.7 350.8 Siona 25IWBDD0009 RCD 295481 7013734 501.8 -60.9 43.5 344.9 Siona 25IWBRD0010 RCD 295772 7013743 502.0 -60.7 226.6 368.3 Siona 24IWBRD0039 RCD 295770 7013648 503.7 224.7 -60.6 302.8 Siona 24IWBRD0056 RCD 295663 7013443 505.0 47.0 -60.1 326.5 (m) RL Azimuth Dip (m) Table 3 – Siona and New England Granite - Summary of significant RC and diamond drilling assay results using a lower cut-off grade of >0.3g/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) 1m RC 57 58 1 0.4 Fresh rock 25IWBRC0030 1m RC 120 122 2 0.7 Weakly weathered 25IWBRC0030 1m RC 145 147 2 0.7 Fresh rock 25IWBRC0030 1m RC 237 239 2 1.5 Fresh rock 25IWBRC0030 1m RC 261 262 1 0.3 Fresh rock 25IWBRC0031 1m RC NSA 25IWBRC0029 Comment 25IWBRC0032 1m RC 251 252 1 0.4 Fresh rock 24IWBRD0039 1m RC & HQ2 97.0 213.0 116.0 1.0 Fresh rock 24IWBRD0056 1m RC & HQ2 270.0 284.5 14.5 0.6 Fresh rock 24IWBRD0056 Core HQ2 295.4 305.3 9.9 0.5 Fresh rock 24IWBRD0056 Core HQ2 318.1 318.5 0.4 11.5 Within sheared mafic, fresh rock 25IWBDD0009 Core HQ2 75.9 82.0 6.1 0.3 Fresh rock 25IWBDD0009 Core HQ2 103.5 109.9 6.4 1.5 Fresh rock 25IWBDD0009 Core HQ2 105.8 106.1 0.3 3.6 Fresh rock yandalresources.com.au | ASX:YRL 14 Sample type / Sub From (m) To (m) Interval (m) Au (g/t) Comment Core HQ2 108.3 108.6 0.4 12.7 Fresh rock 25IWBDD0009 Core HQ2 109.5 109.8 0.4 6.2 Fresh rock 25IWBDD0009 Core HQ2 112.5 113.2 0.7 2.5 Fresh rock 25IWBDD0009 Core HQ2 128.5 130.1 1.6 3.4 Fresh rock 25IWBDD0009 Core HQ2 129.6 130.1 0.4 11.9 Fresh rock 25IWBDD0009 Core HQ2 155.1 156.5 1.5 0.5 Fresh rock 25IWBDD0009 Core HQ2 194.4 195.8 1.4 0.5 Fresh rock 25IWBDD0009 Core HQ2 201.8 206.7 4.9 0.4 Fresh rock 25IWBDD0009 Core HQ2 217.3 217.6 0.3 3.6 Fresh rock 25IWBDD0009 Core HQ2 222.7 222.9 0.2 7.1 Fresh rock 25IWBDD0009 Core HQ2 333.0 335.9 2.9 1.4 Fresh rock 25IWBRD0003 Core HQ2 322.2 338.5 16.3 0.5 Fresh rock 25IWBRD0003 Core HQ2 343.0 348.0 5.0 0.6 Fresh rock 25IWBRD0008 Core HQ2 215.6 221.8 6.2 0.4 Fresh rock 25IWBRD0008 Core HQ2 226.8 227.8 1.0 1.5 Fresh rock 25IWBRD0008 Core HQ2 241.5 248.4 7.0 0.4 Fresh rock 25IWBRD0008 Core HQ2 310.0 318.0 8.0 0.8 Fresh rock 25IWBRD0008 Core HQ2 315.1 316.1 0.9 4.7 Fresh rock 25IWBRD0010 Core HQ2 245.4 251.7 6.3 0.4 Fresh rock 25IWBRD0010 Core HQ2 282.9 312.1 29.1 0.4 Fresh rock 25IWBRD0010 Core HQ2 336.5 341.4 4.9 0.5 Fresh rock Hole ID 25IWBDD0009 NSA - no significant assays. Table 4 – Siona – Reporting broader low-grade intercepts from previously reported RC and diamond drilling assay results using a lower cut-off grade of >0.1g/t Au with no more than 10m of continuous internal waste included unless otherwise stated. All intercept lengths are reported as down-hole lengths. Please note that these intervals include higher-grade zones, which have been reported previously. Intervals have been re-reported to demonstrate the scale of low-grade mineralisation across the Siona Prospect. Hole ID Sample type / Sub From (m) To (m) Interval (m) Au (g/t) Comment 1m RC 61.0 93.0 32.0 0.8 Re-reported using >0.1g/t Au cut-off 24IWBRC0046 1m RC 86.0 162.0 76.0 0.5 Re-reported using >0.1g/t Au cut-off 24IWBRC0046 1m RC 49.0 71.0 22.0 0.2 Re-reported using >0.1g/t Au cut-off 24IWBRC0047 1m RC 38.0 149.0 111.0 0.8 Re-reported using >0.1g/t Au cut-off 24IWBRC0048 1m RC 102.0 156.0 54.0 0.7 Re-reported using >0.1g/t Au cut-off 24IWBRC0048 1m RC 52.0 65.0 13.0 0.2 Re-reported using >0.1g/t Au cut-off 24IWBRC0049 1m RC 88.0 137.0 49.0 0.4 Re-reported using >0.1g/t Au cut-off 24IWBRC0050 1m RC 48.0 103.0 55.0 1.9 Re-reported using >0.1g/t Au cut-off 24IWBRC0051 1m RC 47.0 117.0 70.0 0.2 Re-reported using >0.1g/t Au cut-off 24IWBRC0053 1m RC 116.0 178.0 62.0 0.3 Re-reported using >0.1g/t Au cut-off 24IWBRC0054 1m RC 266.0 338.0 72.0 0.3 Re-reported using >0.1g/t Au cut-off 24IWBRC0055 1m RC 140.0 248.0 108.0 0.3 Re-reported using >0.1g/t Au cut-off 24IWBRC0057 1m RC 121.0 248.0 127.0 0.4 Re-reported using >0.1g/t Au cut-off 24IWBRC0057 1m RC 41.0 97.0 56.0 0.2 Re-reported using >0.1g/t Au cut-off 24IWBRC0044 yandalresources.com.au | ASX:YRL 15 From (m) To (m) Interval (m) Au (g/t) Comment 24IWBRD0039 Sample type / Sub 1m RC & HQ2 77.0 292.7 215.7 0.6 Re-reported using >0.1g/t Au cut-off 24IWBRD0056 1m RC & HQ2 265.0 305.3 40.3 0.4 Re-reported using >0.1g/t Au cut-off 24IWBRD0056 1m RC 211.0 252.0 41.0 0.3 Re-reported using >0.1g/t Au cut-off 24IWBRD0056 1m RC 106.0 133.0 27.0 0.2 Re-reported using >0.1g/t Au cut-off 24IWBRD0056 1m RC 36.0 71.0 35.0 0.2 Re-reported using >0.1g/t Au cut-off Hole ID 24YRLEIS0002 Core NQ2 313.0 393.6 80.6 0.2 Re-reported using >0.1g/t Au cut-off 25IWBRD0003 Core HQ2 320.2 412.0 91.8 0.2 Re-reported using >0.1g/t Au cut-off 25IWBRD0008 Core HQ2 215.0 289.6 74.6 0.2 Re-reported using >0.1g/t Au cut-off 25IWBRD0008 Core HQ2 310.6 318.0 7.4 0.8 Re-reported using >0.1g/t Au cut-off 25IWBRD0010 Core HQ2 243.3 269.4 26.1 0.2 Re-reported using >0.1g/t Au cut-off 25IWBRD0010 Core HQ2 276.4 328.3 51.9 0.3 Re-reported using >0.1g/t Au cut-off YRLRC1153 1m RC 42.0 143.0 101.0 0.2 Re-reported using >0.1g/t Au cut-off yandalresources.com.au | ASX:YRL 16 Appendix 2 – Ironstone Well-Barwidgee Gold Project, Siona Diamond Drilling & New England Granite RC 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. • • • ASX Announcement 21 May 2025 Yandal Resources has completed RC drilling intermittently across a single line at the Arrakis Prospect. The drilling involved 5.5-inch face sampling bit down to an average down-hole depth of 208m (between 138m and 270m. Holes were drilled at an angle of -60° to the southwest. Yandal Resources (YRL) RC drilling samples were collected via a rig-mounted static cone splitter, splitting approximately 12.5% of the total sample volume. Two splits are collected for each metre: a primary and duplicate sample. The primary 1m samples are then sent to a lab for further analysis. The duplicate samples are retained on-site unless they are submitted as routine duplicates. Yandal Resources has completed diamond drilling across the Siona Prospect. The drilling involved RC pre-collars down to fresh rock, followed by HQ (diameter of ~63.5mm) diamond core drilling to an average down-hole depth of 348m (between 327m and 368m. Holes were drilled at an angle of -60 ° to either the southwest or northeast. The core was halved using a core saw, with the right-hand side of the core (looking downhole) sampled. Before sampling, the core is logged by a company geologist for lithology type, veining, alteration, and deformation. Sample lengths vary subject to logged geological intervals of interest, with a minimum sample length of 0.2 metres and a maximum sample length of 1.0 metres. Sample quality is considered high. Page 17 Criteria JORC Code explanation Commentary 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 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 ASX Announcement 21 May 2025 For YRL RC drilling, the cone splitter is regularly cleaned and inspected. The 1m bulk samples are laid out in drill order. These bulk samples are regularly inspected for contamination, and the volum