Announcement PDF 1 ASX Announcement ASX:WIN ABN 77 648 687 094 Level 4, 220 St Georges Tce Perth, WA 6000 PO BOX 7713 Cloisters Square WA 6850 T: +61 8 6381 7250 F: +61 8 6381 7299 info@winmetals.com.au www.winmetals.com.au ASX:WIN 26 May 2026 HIGH-GRADE PRINCESS ROYAL RESULTS CONFIRM ACQUISITION UPSIDE High-grade satellite targets reinforce expansion potential beyond Princess Royal Mine Key outcomes include: • Acquisition completed for the fully permitted Princess Royal Gold Mine • Historic production of ~13,900oz at 21 g/t Au • Princess Royal Exploration Target1 : o 26,000 – 40,000 tonnes at 8.0 – 12.0 g/t Au for 7,000 – 15,000 ounces • High-grade reconnaissance sampling confirms broader project upside: o Hill End prospect returns rock chip samples up to 5.59 g/t Au o Battler West prospect returns rock chips up to 4.61 g/t Au o Great Battler battery sands return grades up to 1.62 g/t Au • Immediate work programs to advance the broader Radio project area: o Drill planning underway at Princess Royal with Programme of Work approved o Exploration targeting of satellite prospects to support drill planning • Transaction increases scale and optionality of the Radio Gold Project: o Expands the project footprint and resource potential o Provides multiple high-grade prospects to support future development scenarios The potential quantity and grade of the Exploration Target is conceptual in nature and, as such, there has been insufficient exploration drilling conducted to estimate a Mineral Resource. At this stage it is uncertain if further exploration drilling will result in the estimation of a Mineral Resource. The Exploration Target has been prepared in accordance with the JORC Code (2012). Refer to ASX announcement ASX:WIN “WIN Builds Scale at Radio Gold Project with High Grade Gold Acquisition” Released 31 March 2026 1 ASX:WIN “WIN Builds Scale at Radio Gold Project with High Grade Gold Acquisition” Released 31 March 2026 HIGH-GRADE PRINCESS ROYAL RESULTS CONFIRM ACQUISITION UPSIDE 26 May 2026 2 ABN 77 648 687 094 Level 4, 220 St Georges Tce Perth, WA 6000 PO BOX 7713 Cloisters Square WA 6850 T: +61 8 6381 7250 F: +61 8 6381 7299 info@winmetals.com.au www.winmetals.com.au ASX:WIN WIN Metals Ltd (ASX:WIN) (“WIN” or “the Company”) is pleased to advise that it has completed the acquisition of the fully permitted Princess Royal Gold Mine and surrounding tenure, located approximately 80 km south-west of the Company’s Radio Gold Project in Western Australia. The acquisition adds a high-grade historical gold operation with near-term drilling and development potential, expanding the scale and optionality of WIN’s 100%-owned Radio Gold Project, which currently hosts a Mineral Resource Estimate of 345,000 tonnes at 3.70 g/t Au for 41,000 ounces of gold2 . Managing Director and CEO, Mr Steve Norregaard commented: “WIN’s acquisition of Princess Royal marks an important step in our strategy to build a high-grade production hub at Radio. This transaction delivers a fully permitted, high-grade gold asset into our portfolio, in the right geology, with near-term work programs ready to go. The reconnaissance sampling completed across the broader Princess Royal tenure has quickly confirmed the quality of the system, with high-grade rock chips at Hill End and Battler West providing high quality exploration targets and encouraging grades in the Great Battler battery sands highlighting additional readily accessible gold ounces. These results validate our thesis that Princess Royal can provide immediate optionality to support future development scenarios at Radio. We now have line of sight to a stronger development case at Radio, underpinned by a larger project footprint, multiple satellite prospects and the flexibility to sequence high grade ore sources as we progress mine planning. With mining permits in place at Princess Royal and a Programme of Work already approved, we are moving quickly into drill planning with mine studies and systematic sampling programs readily able to translate this exploration upside into mineable inventory. Our focus remains on disciplined capital allocation and completing solid technical work so that every acquisition strengthens the quality and resilience of our future production profile. We look forward to updating shareholders as drilling commences at Princess Royal and as we continue to unlock value across the broader Radio Gold Project area.” Next Steps: • Drill planning underway with drill contractor to be finalised for Princess Royal • Mine planning for Princess Royal as a satellite project to Radio • Systematic Great Battler Tails sampling to facilitate a tonnage and grade estimation • Desktop studies to collate historic exploration data for Satellite prospects within the Princess Royal tenure package Satellite Prospects Reconnaissance Results: As part of WIN’s accelerated field work program mapping and sampling of the wider tenement package was carried out focusing on the western tenure where multiple historic workings are located. 2 ASX:WIN Radio Gold Project Mineral Resource Update” Released 29 January 2026 HIGH-GRADE PRINCESS ROYAL RESULTS CONFIRM ACQUISITION UPSIDE 26 May 2026 3 ABN 77 648 687 094 Level 4, 220 St Georges Tce Perth, WA 6000 PO BOX 7713 Cloisters Square WA 6850 T: +61 8 6381 7250 F: +61 8 6381 7299 info@winmetals.com.au www.winmetals.com.au ASX:WIN Figure 1: Sampling results for West Battler, Hill End and Great Battler battery sands (Au ppm) Hill End Prospect At the Hill End Prospect, located approximately 2 km east of the Princess Royal Gold Mine, twelve historical shafts of varyingdepthshavebeen identified.Selectiverock chipsampling,predominantly of quartz material from shaft spoil, returned high-grade gold results of up to 5.59 g/t Au. Full assay results are presented in the appendices. Evidence of historical drilling was observed, with drill collars identified in the field. A review of historical reports is currently underway to compile and validate relevant drilling data. Figure 2: Hill End workings and evidence of historic drilling HIGH-GRADE PRINCESS ROYAL RESULTS CONFIRM ACQUISITION UPSIDE 26 May 2026 4 ABN 77 648 687 094 Level 4, 220 St Georges Tce Perth, WA 6000 PO BOX 7713 Cloisters Square WA 6850 T: +61 8 6381 7250 F: +61 8 6381 7299 info@winmetals.com.au www.winmetals.com.au ASX:WIN Battler West Prospect A substantial two-compartment, timber-lined shaft at Battler West was located north of the Hill End Prospect, indicative of historical underground mining activity. A rock chip sample collected from material associated with the shaft returned a gold grade of 4.61 g/t Au, demonstrating the prospectivity of the area. The shaft does not appear to have been tested by modern drilling, and no corresponding MINDEX record has been identified. This highlights a gap in historical data coverage and reinforces the opportunity for systematic exploration to assess the extent of mineralisation in the immediate vicinity. Great Battler Tails At Great Battler, multiple historical shafts and the remains of a stamp battery were mapped, with battery sands identified on site. The presence of mature Blackbutt trees established within the footprint of the sands indicates that this material has not been subject to recent reprocessing. Battery sands were sampled to a depth of approximately 0.3 m across their extent. This material represents an opportunity to supplement the existing Princess Royal battery sands. Sampling of the Great Battler sands returned an average grade of 0.89 g/t Au, with individual results ranging from 0.39 g/t Au to 1.62 g/t Au. These initial results support the potential for economic mineralisation; however, further work is required to adequately define grade distribution and understand metallurgical characteristics. A systematic, gridded sampling program extending to the base of the battery sands is planned. Figure 3: Great Battler Tails Au ppm ID2 gridded model HIGH-GRADE PRINCESS ROYAL RESULTS CONFIRM ACQUISITION UPSIDE 26 May 2026 5 ABN 77 648 687 094 Level 4, 220 St Georges Tce Perth, WA 6000 PO BOX 7713 Cloisters Square WA 6850 T: +61 8 6381 7250 F: +61 8 6381 7299 info@winmetals.com.au www.winmetals.com.au ASX:WIN Figure 4: Great Battler battery sands Transaction Details Princess Royal Consideration: • Total cash payments of A$500,000 (exclusive of GST) paid to Jalmah Investments Pty Ltd (Vendor) on closing. • The Company has also granted the vendor a royalty of A$75 (exclusive of GST) per ounce of gold in respect of all refined bullion that is the end product resulting from the gold bearing ore extracted and recovered from the Tenements. • Assumption of existing tiered royalty arrangement: • 0-5000 ounces - $nil • 5001- 13,800 ounces - A$25 per ounce • 13,801 – 15,000 ounces - A$25 per ounce initially by offset against a A$30,000 prior advance payment Tenements Acquired Princess Royal tenure consists of one Mining Lease and two Prospecting Licenses. Table 1: Tenement details Tenement Project Status Area (Ha) M 77/718 Princess Royal Live 26 P 77/4702 Princess Royal Live 52 P 77/4703 Princess Royal Live 119 HIGH-GRADE PRINCESS ROYAL RESULTS CONFIRM ACQUISITION UPSIDE 26 May 2026 6 ABN 77 648 687 094 Level 4, 220 St Georges Tce Perth, WA 6000 PO BOX 7713 Cloisters Square WA 6850 T: +61 8 6381 7250 F: +61 8 6381 7299 info@winmetals.com.au www.winmetals.com.au ASX:WIN Location and Project History Princess Royal gold mine located approximately 80 km south-west of WIN’s Radio Gold Mine within the Shire of Westonia, 310 km east of Perth in Western Australia. The site is accessed by the sealed Stoneman Rd only 5 km west of the Westonia townsite and the Edna May gold mine currently owned by Ramelius Resources. The Princess Royal Gold Mine lies within the same geological package as the Edna May Gold Mine, located 5km to the east that has produced over 1 million ounces of gold since 1910. Historic production at Princess Royal totalled approximately 20,700 tonnes at 21 g/t Au for 13,900 ounces of gold between 1921 and 1935. The tenure has been in private hands since the 1990’s. Figure 5: Location of WIN Metals Yilgarn Gold Projects HIGH-GRADE PRINCESS ROYAL RESULTS CONFIRM ACQUISITION UPSIDE 26 May 2026 7 ABN 77 648 687 094 Level 4, 220 St Georges Tce Perth, WA 6000 PO BOX 7713 Cloisters Square WA 6850 T: +61 8 6381 7250 F: +61 8 6381 7299 info@winmetals.com.au www.winmetals.com.au ASX:WIN Figure 6: Location of Radio, Princess Royal and Stumpy Doodle Projects About WIN Metals WIN Metals Limited (ASX: WIN) is an Australian mineral exploration company with a portfolio of quality gold, nickel, and lithium assets across approximately 350 km² of granted tenure across the Southern Goldfields and Kimberley regions of Western Australia. The Company’s Radio Gold Project comprises the Radio and Princess Royal deposits. Radio is located 8 km north of Bullfinch and approximately 38 km northwest of Southern Cross, while Princess Royal lies 80 km southwest of Radio and 5 km west of the Westonia townsite. Combined historical production from the two operations totals approximately 92,000 ounces of gold. WIN’s January 2026 Mineral Resource Estimate for Radio stands at 345,000 tonnes at 3.70 g/t Au for 41,000 ounces of gold. Princess Royal hosts an Exploration Target of 26,000 to 40,000 tonnes at 8–12 g/t Au, equivalent to 7,000 to 15,000 ounces of gold. The Mt Edwards Nickel and Faraday–Trainline Lithium Projects are located near Widgiemooltha, approximately 80 km south of Kalgoorlie-Boulder and 30 km south of Kambalda. The Mt Edwards Nickel Project is a collection of eleven nickel deposits with a combined mineral resource of 12.7 Mt at 1.43% Ni for 180,900 tof contained nickel3 .The Faraday-Trainline Lithium Project hosts areported mineral resource of 1.96 Mt at 0.69% Li2O4 . In the Kimberley region, the Butchers Creek Gold Project is located 30 km southeast of Halls Creek and is centred on a historic goldfield. The project hosts a global Mineral Resource of 5.6 Mt at 3 ASX:WIN “Sale of non-core assets yield $1.4M for WIN to advance gold Assets” Released 1 July 2025 4 ASX:WIN “375% Growth in Faraday-Trainline Lithium Mineral Resource” Released 8 November 2023 HIGH-GRADE PRINCESS ROYAL RESULTS CONFIRM ACQUISITION UPSIDE 26 May 2026 8 ABN 77 648 687 094 Level 4, 220 St Georges Tce Perth, WA 6000 PO BOX 7713 Cloisters Square WA 6850 T: +61 8 6381 7250 F: +61 8 6381 7299 info@winmetals.com.au www.winmetals.com.au ASX:WIN 1.98 g/t Au for 359,000 ounces of gold5 . Historical production between 1995 and 1997 totalled approximately 52,000 ounces. WIN Metals is focused on advancing its diversified portfolio of precious and critical mineral assets through targeted exploration and development, with the objective of delivering sustainable, long- term shareholder value. Table 2: WIN Metals Radio Gold Project Mineral Resource Estimate Deposit Resource Classification Tonnes Au g/t Contained Gold (Oz) East Indicated 37,000 3.63 4,300 Main Indicated 66,000 4.69 10,000 Repeater Indicated 48,000 3.90 6,000 Radio South Indicated 10,000 2.21 700 East Inferred 44,000 5.35 7,500 Main Inferred 81,000 2.45 6,300 Repeater Inferred 32,000 3.86 3,900 Radio South Inferred 17,000 2.91 1,600 Green Harp Inferred 7,000 2.34 600 Mill Inferred 3,000 0.92 100 Total Indicated + Inferred 345,000 3.70 41,000 Note: Figures are rounded and reported at 0.5 g/t cut-off to 50m below surface (open pit) and 1.0g/t below 50m of surface. Table 3: WIN Metals Butchers Creek Gold Mineral Resource Estimates Deposit Last Update Resource Classification Tonnes (Mt) Au (g/t) Contained Gold (Oz) Butchers Creek Apr-25 Indicated 3.58 2.24 258,000 Inferred 1.65 1.18 63,000 Golden Crown Jun-21 Inferred 0.40 3.10 38,000 Total Indicated + Inferred 5.63 1.98 359,000 Note: Butchers Creek figures are rounded and reported at 0.5g/t Au cut-off to 150m below surface (open pit) and 0.8g/t Au cut-off below 150m of surface. Golden Crown figures are rounded and reported above a 0.8 g/t Au cut-off. Table 4: WIN Metals Mt Edwards Nickel Mineral Resource Estimates Deposit Indicated Inferred Total Resources Tonne (Mt) Nickel (%) Tonne (Mt) Nickel (%) Tonne (Mt) Nickel (%) Nickel Tonnes Gillett* 2.27 1.35 0.87 1.16 3.14 1.30 40,770 Widgie 3* 0.51 1.34 0.22 1.95 0.73 1.53 11,200 Widgie Townsite* 1.65 1.60 0.85 1.38 2.50 1.53 38,260 Armstrong* 0.95 1.45 0.01 1.04 0.96 1.44 13,820 132N 0.03 2.90 0.43 1.90 0.46 2.00 9,050 5 ASX:WIN “WIN advances Butchers Creek towards development following resource update” Released 16 April 2025 HIGH-GRADE PRINCESS ROYAL RESULTS CONFIRM ACQUISITION UPSIDE 26 May 2026 9 ABN 77 648 687 094 Level 4, 220 St Georges Tce Perth, WA 6000 PO BOX 7713 Cloisters Square WA 6850 T: +61 8 6381 7250 F: +61 8 6381 7299 info@winmetals.com.au www.winmetals.com.au ASX:WIN Deposit Indicated Inferred Total Resources Tonne (Mt) Nickel (%) Tonne (Mt) Nickel (%) Tonne (Mt) Nickel (%) Nickel Tonnes Cooke 0.15 1.30 0.15 1.30 2,000 Inco Boundary 0.46 1.20 0.46 1.20 5,590 McEwen 1.13 1.35 1.13 1.35 15,340 McEwen Hangingwall 1.92 1.36 1.92 1.36 26,110 Mt Edwards 26N 0.87 1.43 0.87 1.43 12,400 Zabel 0.27 1.94 0.05 2.04 0.33 1.96 6,360 TOTAL 5.68 1.48 6.97 1.39 12.66 1.43 180,900 All Resources reported at 1.0% Ni cut-off except for WTS, Widgie 3, Gillett and Armstrong which are reported at 0.7% Ni cut- off. Tonnes and grade have been rounded to reflect the relative uncertainty of the estimates. Table 5: WIN Metals Mt Edwards Lithium Mineral Resource Estimates Deposit Measured Indicated Inferred TOTAL Resources Tonne (kt) Li2O (%) Tonne (kt) Li2O (%) Tonne (kt) Li2O (%) Tonne (kt) Li2O (%) Li2O Tonnes Faraday 550 0.75 250 0.66 220 0.61 1,020 0.7 7,100 Trainline - - 780 0.69 160 0.63 940 0.68 6,300 TOTAL 550 0.75 1,020 0.68 390 0.62 1,960 0.69 13,500 Reported above a cut-off grade of 0.30% Li2O to a depth of 310mRL (65m below surface) and 0.50% Li2O below 310mRL to 250mRL. Tonnes and grade have been rounded to reflect the relative uncertainty of the estimates. HIGH-GRADE PRINCESS ROYAL RESULTS CONFIRM ACQUISITION UPSIDE 26 May 2026 10 ABN 77 648 687 094 Level 4, 220 St Georges Tce Perth, WA 6000 PO BOX 7713 Cloisters Square WA 6850 T: +61 8 6381 7250 F: +61 8 6381 7299 info@winmetals.com.au www.winmetals.com.au ASX:WIN Figure 7: WIN’s Gold, Nickel and Lithium Project Locations Competent Person Statement – WIN Metals The information in this announcement that relates to WIN’s Mineral Resources, Exploration Targets and Exploration Results, are based on, and fairly reflects, information compiled and reviewed by Mr William Stewart, employee and shareholder of WIN Metals Ltd. Mr Stewart is a Member of the Australasian Institute of Mining and Metallurgy (AusIMM Member No. 224335) and has sufficient experience relevant to the style of mineralisation, type of deposit under consideration,and the activities undertakentoqualify as a Competent Personas defined in the 2012 Edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (JORC Code). Mr Stewart consents to the inclusion in this announcement of the matters based on his information in the form and context in which it appears. WIN Metals Ltd confirms that it is not aware of any new information or data that materially affects the information contained in previous ASX announcements referenced in this report. Forward Looking Statements This announcement includes forward-looking statements that are only predictions and are subject to known and unknown risks, uncertainties, assumptions and other important factors, many of HIGH-GRADE PRINCESS ROYAL RESULTS CONFIRM ACQUISITION UPSIDE 26 May 2026 11 ABN 77 648 687 094 Level 4, 220 St Georges Tce Perth, WA 6000 PO BOX 7713 Cloisters Square WA 6850 T: +61 8 6381 7250 F: +61 8 6381 7299 info@winmetals.com.au www.winmetals.com.au ASX:WIN which are beyond the control of WIN Metals Ltd, the directors and the Company’s management. Such forward-looking statements are not guarantees of future performance. Examplesof forward-looking statements used in this announcement include use of the words ‘may’, ‘could’, ‘believes’, ’estimates’, ‘targets’, ’expects’, or ‘intend’ and other similar words that involve risks and uncertainties. These statements are based on an assessment of present economic and operating conditions, and on a number of assumptions regarding future events and actions that, as at the date of announcement, are expected to take place. Actual values, results, interpretations or events may be materially different to those expressed or implied in this announcement. Given these uncertainties, recipients are cautioned not to place reliance on forward-looking statements in the announcement as they speak only at the date of issue of this announcement. Subject to any continuing obligations under applicable law and the ASX Listing Rules, WIN Metals Ltd does not undertake any obligation to update or revise any information or any of the forward-looking statements in this announcement or any changes in events, conditions or circumstances on which any such forward-looking statement is based Summary Information This announcement has been prepared by WINand includes information regarding WIN’s disclosure of results to the ASX. This announcement should also be read in conjunction with WIN’s other periodic and continuous disclosure announcements lodged with the ASX, which are available at www.asx.com.au and available on WIN’s website at www.winmetals.com.au. Table 6: Reference documents included in this announcement Number Date Company Title 1 31-Mar-26 WIN WIN Build Scale at Radio Gold Project with High Grade Gold Acquisition 2 29-Jan-26 WIN Radio Gold Project Mineral Resource Update 3 1-Jul-25 WIN Sale of non-core assets yield $1.4M for WIN to advance gold Assets 4 8-Nov-23 WIN 375% Growth in Faraday-Trainline Lithium Mineral Resource 5 16-Apr-25 WIN WIN advances Butchers Creek towards development following resource update Compliance Statement The Company confirms it is not aware of any new information or data that materially affects the information included in the original market announcement(s), and in the case of estimates of Mineral Resources that all material assumptions and technical parameters underpinning the estimates in the relevant announcement continue to apply and have not materially changed. 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 announcement. Approved by: The Board of Directors -ENDS- HIGH-GRADE PRINCESS ROYAL RESULTS CONFIRM ACQUISITION UPSIDE 26 May 2026 12 ABN 77 648 687 094 Level 4, 220 St Georges Tce Perth, WA 6000 PO BOX 7713 Cloisters Square WA 6850 T: +61 8 6381 7250 F: +61 8 6381 7299 info@winmetals.com.au www.winmetals.com.au ASX:WIN For further details please contact: Steve Norregaard Paul Berson Managing Director Executive Adviser WIN Metals Ltd Corporate Storytime E steve@winmetals.com.au E paul@corporatestorytime.com T 0472 621 529 T 0421 647 445 HIGH-GRADE PRINCESS ROYAL RESULTS CONFIRM ACQUISITION UPSIDE 26 May 2026 13 ABN 77 648 687 094 Level 4, 220 St Georges Tce Perth, WA 6000 PO BOX 7713 Cloisters Square WA 6850 T: +61 8 6381 7250 F: +61 8 6381 7299 info@winmetals.com.au www.winmetals.com.au ASX:WIN Appendices Table 7: Rock chip and battery sands sample details Sample ID Prospect East (m) North (m) Depth (m) Sample Type Lithology Au ppm Comment 26PRSS001 Battler West 654298 6539089 Surface Rock Quartz Vein 0.02 Shaft spoil Bucky quartz fragments 26PRSS002 Hill End 654257 6538736 Surface Rock Quartz Vein 0.02 Bucky quartz fragments small shaft and trench 26PRSS003 Hill End 654323 6538640 Surface Rock Quartz Vein 0.68 Laminated quartz fragments with a series of shafts 26PRSS004 Hill End 654334 6538611 Surface Rock Quartz Vein 1.35 Laminated quartz fragments in amphibolite. Timbered shaft 26PRSS005 Hill End 654355 6538601 Surface Rock Quartz Vein 4.75 Bucky quartz fragments from small trench/shaft 26PRSS006 Hill End 654370 6538614 Surface Rock Quartz Vein 3.03 Deep shaft with wood lining. Oxidised sulphides in quartz fragments 26PRSS007 Hill End 654405 6538577 Surface Rock Quartz Vein 5.59 Bucky quartz fragments from deep shaft at 75 degrees to east 26PRSS008 Battler West 654613 6539263 Surface Rock Quartz Vein 4.61 Bucky and laminated quartz fragments. Large wood lined two compartment shaft 26PRSS009 Battler Tails 654859 6538928 0.3 Soil Sands 0.6 Processing sands 26PRSS010 Battler Tails 654844 6538925 0.3 Soil Sands 0.39 Processing sands 26PRSS011 Battler Tails 654835 6538912 0.3 Soil Sands 0.99 Processing sands 26PRSS012 Battler Tails 654803 6538923 0.3 Soil Sands 0.72 Processing sands 26PRSS013 Battler Tails 654784 6538931 0.3 Soil Sands 0.53 Processing sands 26PRSS014 Battler Tails 654874 6538981 0.3 Soil Sands 1.17 Processing sands 26PRSS015 Battler Tails 654861 6538964 0.3 Soil Sands 0.92 Processing sands 26PRSS016 Battler Tails 654838 6538958 0.3 Soil Sands 1.62 Processing sands 26PRSS017 Battler Tails 654820 6538955 0.3 Soil Sands 1.55 Processing sands 26PRSS018 Battler Tails 654799 6538951 0.3 Soil Sands 0.74 Processing sands 26PRSS019 Battler Tails 654781 6538946 0.3 Soil Sands 0.47 Processing sands 26PRSS020 Battler Tails 654813 6538964 0.3 Soil Sands 1.5 Processing sands 26PRSS021 Battler Tails 654828 6538989 0.3 Soil Sands 0.81 Processing sands 26PRSS022 Battler Tails 654830 6539014 0.3 Soil Sands 0.68 Processing sands 26PRSS023 Battler Tails 654839 6539033 0.3 Soil Sands 0.66 Processing sands Coordinates are GDA94 zone 50S HIGH-GRADE PRINCESS ROYAL RESULTS CONFIRM ACQUISITION UPSIDE 26 May 2026 14 ABN 77 648 687 094 Level 4, 220 St Georges Tce Perth, WA 6000 PO BOX 7713 Cloisters Square WA 6850 T: +61 8 6381 7250 F: +61 8 6381 7299 info@winmetals.com.au www.winmetals.com.au ASX:WIN Table 1 As Per JORC Code Guidelines (2012) Section 1 Sampling Techniques and Data – Princess Royal Criteria Commentary Sampling techniques Rock chip surface samples were collected via grab samples or via the use of a hammer to break away the sample from the rock face. Samples of 1.5-3.0 kg were collected in prenumbered calico bags, photographed with a GPS position. Soil samples were dug to a depth of 0.3 m with a representative side wall sample collected. Drilling Techniques N/A Drill Sample Recovery N/A Logging All samples were geologically logged and photographed. Sub-sampling techniques and sample preparation Samples of approximately 1.5-3.0 kg. Samples were dry. All samples were prepared at Bureau Veritas (Canning Vale, WA), where they weredried at 105°C, crushed to <10mm, riffle split, and pulverised to 90% passing 75µm. A 200g pulp was retained for fire assay. Coarse rejects were archived. Sample sizes are appropriate for the mineralisation style and grain size. Quality of assay data and laboratory tests No insertion of certified reference materials (CRMs), blanks, and field duplicates. Samples were assayed by Bureau Veritas via 40g fire assay with AAS finish (detection limit 0.01 ppm Au). QAQC results were reviewed and deemed satisfactory, showing acceptable accuracy and precision. No umpire lab checks have yet been undertaken. Bureau Veritas is NATA-accredited to ISO/IEC 17025 standards. Verification of sampling and assaying Assay results were received from the laboratory in CSV and PDF formats, validated, and imported into WIN’s secure Geobank database. Data validation included filter checks and visual review by geological staff. Significant intersections were verified by senior personnel. No data adjustments were made. Location of data points Surface samples were photographed with a GPS position of the sample location with lateral confidence of +/- 3m Data spacing and distribution N/A Orientation of data in relation to geological structure N/A Sample security WIN practices industry standards with individual samples packed into poly weave bags then placed into a larger bulka bag for transport to the assay laboratory. WIN delivers its samples to the lab without the use of external transport parties. Therefore, sample security is not considered to be a risk to the Project. Audits or reviews Internal data validation checks have been undertaken to identify inconsistencies in collar coordinates and assays. Any issues are flagged and resolved before being committed to the database. The Competent Person has reviewed available information and considers the overall quality of data management and verification appropriate for exploration and resource reporting. HIGH-GRADE PRINCESS ROYAL RESULTS CONFIRM ACQUISITION UPSIDE 26 May 2026 15 ABN 77 648 687 094 Level 4, 220 St Georges Tce Perth, WA 6000 PO BOX 7713 Cloisters Square WA 6850 T: +61 8 6381 7250 F: +61 8 6381 7299 info@winmetals.com.au www.winmetals.com.au ASX:WIN Section 2 Reporting of Exploration Results – Princess Royal Criteria Commentary Mineral tenement and land tenure status Tenement Type Status WIN % Grant Date End Date Area Ha M 77/718 Mining Lease Granted 100 1/08/1995 04/09/2045 26 P 77/4702 Prospecting Licence Granted 100 28/06/2026 27/04/2030 52 P 77/4703 Prospecting Licence Granted 100 28/06/2026 27/04/2030 119 All tenements are in good standing. Exploration done by other parties Modern exploration and drilling at the project area commenced in 1955 and has since been conducted by several parties, comprising rotary air blast (RAB), reverse circulation (RC), and diamond drilling (DD) programs across multiple campaigns. The table below summarises the drilling activities completed at Princess Royal: Year Company Drilling Type(s) Holes Metres Drilled 1955 Geological Survey of WA DD 2 432 1981 Balmoral DD 3 318 1988-1990 ACM RAB, RC, DD 14 1,534 1994 Barminco DD 2 481 2001 GE Resources RC 2 392 2002 Bullion RC 4 826 1955 Geological Survey of WA DD 2 432 Geology The Princess Royal prospect is located in the central part of the Southern Cross Greenstone Belt within the Archean Yilgarn Craton of Western Australia, near the town of Westonia. The regional geology comprises a steeply dipping, north-northwest–trending sequence of mafic to intermediate volcanic rocks, dolerite sills and interflow sedimentary units that are intruded by felsic porphyry dykes and granitoids. These rocks are metamorphosed to greenschist– amphibolite facies and dissected by crustal-scale shear zones related to late Archean deformation, which provide the primary structural controls on orogenic gold mineralisation in the Westonia–Edna May district. Drill hole information N/A Data aggregation methods N/A Relationship between mineralisation widths and intercept lengths N/A Diagrams Appropriate maps, sections and tables are included in the body of the report. Balanced reporting All results have been reported with all assays reported within body of the announcement. Other substantive exploration data No further exploration data has been collected at this stage. Further work Refer to the body of the report.