Announcement PDF Valiant Gold Limited (ACN 691 820 532) A: Ground Floor, 34 Colin Street West Perth WA 6005 | W: www.valiantgold.com.au ASX ANNOUNCEMENT 26 October 2026 SEPTEMBER 2026 QUARTERLY ACTIVITIES REPORT Valiant Gold Ltd (ASX: VAL) (‘Valiant’ or the ‘Company’) is pleased to provide its Quarterly Activities Report for the three months ended 30 September 2026, being the Company’s first full quarter following underground re-entry at the Comet Gold mine. Key Highlights: Comet Project Comet Gold Mine restart activities accelerated, with critical power, ventilation, pumping, accommodation, safety and communications workstreams advanced during the quarter ahead of first production in H2 FY27. The Comet Restart Study detailed mine planning and contractor pricing progressed in parallel, with completion and release targeted for Q2 FY27. Underground drilling tender process commenced with priority grade control and resource definition drilling targeted to commence Q2 FY27. Reedy Project The initial South Emu-Triton diamond drilling program was completed, with additional significant assay results reported and the mineralised system remaining open down dip and along strike. Results from the program highlight the potential for future growth to the existing resource base of 1.7Mt @ 4.00g/t Au for 224koz of gold1 . Drilling commenced at the Boomerang Gold Deposit with two diamond drill rigs, with an initial drill program of approximately 8,000m, to enhance confidence in the existing Mineral Resource Estimate and to assist with evaluation of potential open-pit and underground mining scenarios. Drilling is ongoing, with assay results pending. Corporate Total cash and term deposits balance at the end of the quarter was $62.5M. Workforce capability across technical, operational and corporate functions continued to be strengthened to support readiness activities as the Comet Project advances towards restart. Management Comments “The September quarter delivered strong progress towards restarting the Comet Gold Mine, with key infrastructure advanced and the site increasingly taking shape. Drilling across Reedy also reinforced the growth potential of our resource base. With a well-funded program of work ahead, we remain on track for first production in H2 FY27 and look forward to maintaining this momentum.” Brendan Tritton, Managing Director & CEO 1 Refer to the Company’s Prospectus dated 16 February 2026, as amended by the Supplementary Prospectus dated 20 February 2026, (together, the Prospectus) for further information regarding the Mineral Resource Estimates ASX ANNOUNCEMENT – SEPTEMBER 2026 QUARTERLY ACTIVITIES REPORT 26 October 2026 pg. 2 Quarterly Activities Valiant’s projects are strategically located proximal to both the Bluebird Mill and the Tuckabianna Mill (Figure 1) owned and operated by Westgold Resources (ASX: WGX), supporting access to existing infrastructure and a lower capital pathway to development. Valiant has an Ore Purchase Agreement with Westgold Resources to process ore through both mills. Figure 1: Reedy, Comet Project and deposit specific locations, with reference to proximity to processing infrastructure that can be accessed via the Ore Purchase Agreement with Westgold Resources1 Comet Project During the quarter, Valiant advanced the critical infrastructure, site-establishment and technical workstreams which are designed to support the restart of the 100%-owned Comet Gold Mine. Following successful underground re-entry in July 2026, work progressed across power supply, underground electrical infrastructure, ventilation, dewatering, communications, safety infrastructure, accommodation, site access, and rehabilitation planning, advancing the restart. Key milestones included: Power and electrical infrastructure: a 6.1 MW site power station supplier was engaged, with design, certification and site preparation progressed. Ancillary underground electrical infrastructure was ordered. Ventilation: primary ventilation equipment for the Comet and Pinnacles underground workings was ordered, with installation planning progressing. Dewatering: permanent pumping equipment and associated infrastructure were ordered; installation of the dewatering network progressed, and a new discharge line was installed from the pit floor to surface. ASX ANNOUNCEMENT – SEPTEMBER 2026 QUARTERLY ACTIVITIES REPORT 26 October 2026 pg. 3 Accommodation and site establishment: an initial 30-person scalable camp contract was awarded, and temporary workshop and site-establishment works progressed. Communications and safety: surface and underground communications infrastructure was installed and commissioned, and underground refuge chambers ordered. Underground drilling: the tender process commenced for priority grade control and resource definition drilling. Comet Restart Study: mine engineering, design, pricing and planning continued in parallel with physical restart workstreams. Figure 2: Comet Mine Trend Schematic Long Section displaying Mineral Resource (MRE) inventory1 with ounce per vertical metre breakdown, previously mined volumes. During the quarter, Comet restart expenditure totalled $1,315,002, which included long lead items and dewatering costs. Events Subsequent to Quarter Subsequent to quarter end, dewatering reached the 1270 Level, approximately 170 metres below surface, advancing access towards the first planned production areas. Core site facilities, including the workshop, site offices and medical centre, were established, while the primary ventilation fans were installed within budget and on schedule, with commissioning to follow once site power is available. Power station installation and commissioning remain scheduled for completion by the end of October 2026. The Comet Restart Study remains on track for completion before the end of Q2 FY27, while the underground mining services tender is progressing and the appointment of a drilling contractor is nearing completion. First production remains targeted for H2 FY27. Refer to announcement10 released on 14 October 2026 titled “Comet Restart Advances Towards First Production in H2 FY27” for further detail. ASX ANNOUNCEMENT – SEPTEMBER 2026 QUARTERLY ACTIVITIES REPORT 26 October 2026 pg. 4 Reedy Project Boomerang Boomerang currently hosts an existing Mineral Resource Estimate of 5.26Mt at 2.17g/t Au for 367koz of gold1 . Surface diamond drilling commenced at Boomerang during the quarter. This initial program, Phase A, consists of approximately 8,000m which was designed to improve confidence in the existing Mineral Resource Estimate and provide information to support evaluation of potential open-pit and future underground mining scenarios. Two diamond drill rigs were allocated to the program, with 8 holes for 3,259 metres completed in the September quarter. First assay results from the program have been received and are currently undergoing review and validation prior to release, with drilling ongoing. Figure 3: Boomerang gold deposit, Schematic Long Section (facing west) displaying Mineral Resource inventory (MRE)1 with ounce-per-vertical-metre breakdown, previously mined volumes, and resource conversion targets for Phase A drilling. South Emu-Triton The South Emu-Triton gold deposit hosts an existing MRE of 1.7Mt @ 4.00g/t Au for 224koz of gold1 . The maiden diamond drilling program at South Emu-Triton was completed during the quarter, with 3 holes completed for 1,689 metres. The program totalled 4,436 metres across eight drillholes and tested extensions to the Mineral Resource at depth. Results reported8 during the quarter included: 7.0m at 4.57g/t Au from 861.0m, including 0.3m at 68.80g/t Au (26REDD003); 2.0m at 11.49g/t Au from 872.0m (26REDD003); 7.3m at 2.35g/t Au from 838.0m (26REDD003); and 1.0m at 5.96g/t Au from 849.0m (26REDD003). Assay results have been received for the final hole of the program returning modest mineralisation of 3.0m at 0.94g/t Au from 664.0m (26REDD004), providing valuable geological information to support interpretation of the extensive Reedy shear system and further refinement of the Mineral Resource model. Results from the broader program3,8 support the interpretation that mineralisation hosted by the Reedy Shear at South Emu-Triton continues to extend significantly below the defined MRE, remains strongly mineralised and of substantial scale. ASX ANNOUNCEMENT – SEPTEMBER 2026 QUARTERLY ACTIVITIES REPORT 26 October 2026 pg. 5 Refer to Appendix D - JORC Table 1 for relevant information concerning details of sampling techniques, drilling methods and data quality of Valiant exploration results reported in this announcement. For the collar locations and significant intercepts reported in this announcement, refer to Appendix B and C, respectively. During the quarter, exploration expenditure totalled $3,275,871, which included drilling and associated costs. Corporate and Financing Total cash and term deposits balance at the end of the quarter was $62.5M. Of this amount, $5M is held in term deposits with maturities exceeding 90 days. These longer-term deposits are maintained for yield optimisation but remain accessible to fund the Company’s ongoing development activities, subject to standard bank notice periods and immaterial break fees. Use of Funds In accordance with ASX Listing Rule 5.3.4, the table below details the use of funds during the quarter compared with the use of funds statement set out in the Company's Prospectus. The cash movement is also presented graphically in the waterfall chart shown in Figure 4. Prospectus description Per Prospectus ($A’000) Quarter spend ($A’000) Spend to date ($A’000) Balance ($A’000) Resource drilling 12,500 789 789 11,711 Exploration 15,000 2,616 4,323 10,677 Studies 700 - - 700 Comet and South Emu mine restarts 21,000 1,315 1,315 19,685 Tenement costs 3,000 314 876 2,124 Loan repayment* 2,000 - 2,000 - Landholder Duty ** 3,100 - - 3,100 Working capital 15,600 980 2,276 13,324 Costs of Offer and Listing and other expenses (including of the Demerger) 4,100 - 3,967 133 Total Use of Funds 77,000 6,014 15,546 61,454 * Valiant Gold Limited only utilised $2m out of the $3m facility. ** Valiant Gold Ltd received a formal exemption for Landholder Stamp Duty during the June 2026 quarter. Accordingly, the $3.1M budgeted in the prospectus will not be expended. The Board is currently considering the application of these surplus funds and will make a further announcement to the market in due course. ASX ANNOUNCEMENT – SEPTEMBER 2026 QUARTERLY ACTIVITIES REPORT 26 October 2026 pg. 6 Figure 4: Cash movement during the quarter Q1 FY27 ($M) Related party expenditure for the quarter of $623,319 comprised director fees, key management personnel remuneration, and reimbursements to Westgold Resources Limited for services provided in the ordinary course of business (Item 6, Appendix 5B). Capital Structure Issued Capital Ordinary fully paid shares 540,000,100 Performance rights 9,942,855 Unlisted options 15,817,337 Tenements This section is provided in compliance with Listing Rule 5.3. A full list of tenements held by the Company is included in Appendix A. Table 1: Changes in tenements held during the quarter. Project Location Tenement Status Beneficial Interest (%) REEDY WA E20/1129 PENDING 100 ASX ANNOUNCEMENT – SEPTEMBER 2026 QUARTERLY ACTIVITIES REPORT 26 October 2026 pg. 7 Looking Forward Key activities targeted for Q2 FY27 include: Installation and commissioning of the site power station Completion of the Comet Restart Study and preliminary restart mining schedule Appointment of the underground mining services contractor Delivery and mobilisation of the initial 30-person accommodation camp Appointment and mobilisation of the underground drilling contractor Commencement of priority grade-control and resource-definition drilling Valiant will also continue to report assay results from the ongoing Boomerang resource drilling program as they are received and validated. References This Quarterly Activities Report contains information reported in accordance with JORC 2012 and the full details of exploration results referred to herein, including relevant JORC information, can be accessed in the following announcements released by the Company to the ASX: 1. 16 Feb 2026, - IPO Prospectus as amended by the Supplementary Prospectus dated 20 Feb 2026 2. 30 April 2026 - Quarterly Activities/Appendix 5B Cash Flow Report 3. 16 June 2026 – Mineralisation Extensions Confirmed at South-Emu Triton 4. 16 Jul 2026 – Maiden Drill Program to Commence at Boomerang Gold Deposit 5. 21 Jul 2026 – Comet Mine Re-Entry Successfully Completed. 6. 27 Jul 2026 – June 2026 Quarterly Activities/ Cashflow Report 7. 27 Aug 2026 – Resource Definition Drilling Commences at Boomerang 8. 31 Aug 2026 – South Emu-Triton Drilling Continues to Return Strong Results 9. 2 Sep 2026 – Comet Gold Mine Restart Activities Accelerate 10. 14 Oct 2026 – Comet Restart Advances Towards First Production in H2 FY27 Full details of these announcements are available here. Valiant’s Development Pipeline Comet: Lead mine restart workstream, with critical infrastructure, site establishment, dewatering, rehabilitation and technical activities advancing in parallel with completion of the Comet Restart Study and development of the preliminary restart mining schedule. South Emu–Triton: Future underground restart opportunity, with recent drilling advancing mine planning and detailed dewatering preparations underway ahead of restart. Boomerang: Potential open-pit and underground development opportunity, with Resource definition drilling underway and Resource-growth planning in progress. No development decision has been made in respect of Boomerang or South Emu–Triton. Any future dewatering or development decision will remain subject to technical review, approvals, funding, sequencing and other relevant considerations. ASX ANNOUNCEMENT – SEPTEMBER 2026 QUARTERLY ACTIVITIES REPORT 26 October 2026 pg. 8 Investor Relations You can engage with the Company about this announcement here. This announcement is authorised for release by the Board of Directors. Enquiries Brendan Tritton - Managing Director & CEO Investor Relations info@valiantgold.com.au communications@valiantgold.com.au +61 8 6373 8900 About Valiant Gold Valiant Gold is a Western Australian gold company advancing a fully funded mine restart in the Murchison region. Demerged from Westgold Resources and listed in March 2026, the Company holds 100% of the Comet and Reedy gold projects: brownfields assets on granted Mining Leases with existing underground development, historical production exceeding 1Moz, and a combined Mineral Resource of 1.2Moz @ 2.4g/t Au. An Ore Purchase Agreement with Westgold Resources also secures processing capacity at the Tuckabianna and Bluebird mills, removing the requirement to construct a standalone plant thus establishing a lower-capital pathway to production, targeted for H2 FY27. With existing Mining Leases, a near-term pathway to production, a processing solution from day one and a clear focus on mine restart and resource growth, Valiant is advancing toward its next phase of development. Current Mineral Resource Estimates1 are: Tonnes Grade Ounces Tonnes Grade Ounces Tonnes Grade Ounces Tonnes Grade Ounces Comet 151,971 3.54 17,296 248,294 3.63 28,978 262,580 2.99 25,242 662,845 3.35 71,392 Comet North (OP) - - - 433,822 2.47 34,451 160,809 2.06 10,650 594,631 2.36 45,118 Comet North (UG) - - - 19,093 3.44 2,112 269,013 2.31 19,979 288,106 2.39 22,138 Pinnacles 84,012 2.22 5,996 1,189,880 2.28 87,223 955,172 2.34 71,860 2,229,064 2.31 165,549 Venus / Mercury - - - 249,588 1.5 12,037 50,769 1.67 2,726 300,357 1.53 14,775 Total 235,983 3.07 23,293 2,140,677 2.39 164,799 1,698,343 2.39 130,458 4,075,003 2.43 318,971 Boomerang - Kurara (OP) - - 292,071 0.91 8,536 1,711,352 1.50 82,312 2,003,423 1.41 90,847 Boomerang - Kurara (UG) - - 472,059 4.31 65,383 2,788,285 2.35 210,846 3,260,344 2.64 276,229 Calisto 1,112 2.21 79 147,196 2.31 10,932 29,863 1.21 1,162 178,170 2.13 12,173 Culculli - - - 76,092 1.23 3,009 185,572 1.48 8,830 261,664 1.41 11,839 Jack Ryan (UG) - - - 203,537 1.72 11,255 347,925 2.02 22,596 551,462 1.91 33,851 Midway - - - 42,828 1.39 1,914 9,273 1.11 331 52,101 1.34 2,245 Missing Link - - - 30,771 1.19 1,177 38,733 1.87 2,329 69,504 1.57 3,506 Rand (OP) - - - 662,275 1.43 30,448 556,841 2.5 44,757 1,219,116 1.92 75,255 Rand (UG) - - - 182,623 2.01 11,802 1,452,754 2.59 120,971 1,635,377 2.53 133,024 RL9 - - - 24,946 2.91 2,331 17,545 2.19 1,237 42,491 2.61 3,568 South Emu (UG) 16,815 3.61 1,952 676,953 3.78 82,161 725,403 4.47 104,227 1,419,172 4.13 188,350 Triton (UG) 46,690 3.31 4,967 244,799 3.86 30,411 4,694 3.17 478 296,183 3.77 35,862 Thompson's Bore - - - 98,741 1.61 5,111 98,741 1.61 5,111 Turn of the Tide - - - 265,542 1.32 11,269 151,032 1.17 5,681 416,574 1.27 17,009 West Zone - - - - - - 15,598 1.38 692 15,598 1.38 692 Total 64,617 3.37 6,998 3,321,692 2.53 270,629 8,133,611 2.34 611,559 11,519,920 2.4 889,561 Combined Total 300,600 3.13 30,291 5,462,369 2.48 435,428 9,831,954 2.35 742,017 15,594,923 2.41 1,208,532 Comet Reedy Measured Indicated Inferred Total ASX ANNOUNCEMENT – SEPTEMBER 2026 QUARTERLY ACTIVITIES REPORT 26 October 2026 pg. 9 Competent Person’s Statement Information regarding the Mineral Resource Estimates is extracted from Valiant Gold Limited’s Prospectus dated 16 February 2026, as amended by the Supplementary Prospectus dated 20 February 2026 (together, the Prospectus). The Company confirms that it is not aware of any new information or data that materially affects the information included in the Prospectus and that all material assumptions and technical parameters underpinning the estimates in the Prospectus 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 Prospectus. The Information in this report that relates to previously reported Exploration Results for the Reedy Project, has been extracted from the ASX announcements titled: “South Emu-Triton Drilling Continues to Return Strong Results” released on 31 August 2026, “Mineralisation Extensions Confirmed at South Emu-Triton” released on 16 June 2026 and “Quarterly Activities Report and Appendix 5B Cash Flow Report” released on 30 April 2026 which are available at www.valiantgold.com.au. The information in this announcement that relates to new Exploration Results and activities has been compiled, verified and reviewed by Mr Lieth de Selincourt M.Sc., who is a member of the Australian Institute of Geoscientists (MAIG 6123) and Society of Economic Geologists (MSEG 915908), has verified, reviewed, and approved such information. Mr de Selincourt has sufficient experience which is relevant to the styles of mineralisation and types of deposit under consideration and to the activities 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 (JORC Code). Mr de Selincourt is the Manager Exploration of Valiant Gold Limited and accordingly is not independent. Mr de Selincourt consents to and approves the inclusion in this announcement of the matters based on his information in the form and context in which it appears. Mr de Selincourt is eligible to participate in incentive plans of Valiant Gold Limited. Forward Looking Statements This announcement includes various ‘forward-looking statements’ with respect to, among other things, goals, plans, and strategies. Such forward-looking statements are not guarantees of future performance and involve known and unknown risks, uncertainties and other factors beyond the control of the Company that may cause the actual results, performance and outcomes to be materially different from those expressed or implied by such statements. Forward-looking statements are provided as a general guide only and should not be relied on as an indication or guarantee of future performance. Given these uncertainties, recipients are cautioned to not place undue reliance on any forward-looking statement. Subject to any continuing obligations under applicable law, the Company disclaims any obligation or undertaking to disseminate any updates or revisions to any forward-looking statements in this announcement to reflect any change in expectations in relation to any forward-looking statements or any change in events, conditions or circumstances on which any such statement is based. ASX ANNOUNCEMENT – SEPTEMBER 2026 QUARTERLY ACTIVITIES REPORT 26 October 2026 pg. 10 Appendix A – Tenement Schedule Tenement Listing on 30 September 2026. Project Location Tenement Status Beneficial Interest (%) COMET WA M21/0072 LIVE 100 COMET WA M21/0008 LIVE 100 COMET WA L21/0020 LIVE 100 COMET WA L21/0017 LIVE 100 REEDY WA M51/0092 LIVE 100 REEDY WA P51/3354 LIVE 100 REEDY WA P20/2243 LIVE 100 REEDY WA M51/0824 LIVE 100 REEDY WA M51/0788 LIVE 100 REEDY WA M51/0778 LIVE 100 REEDY WA M51/0762 LIVE 100 REEDY WA M51/0757 LIVE 100 REEDY WA M51/0746 LIVE 100 REEDY WA M51/0675 LIVE 100 REEDY WA M51/0649 LIVE 100 REEDY WA M51/0381 LIVE 100 REEDY WA M51/0233 LIVE 100 REEDY WA M20/0561 PENDING 100 REEDY WA M20/0496 LIVE 100 REEDY WA M20/0476 LIVE 100 REEDY WA M20/0444 LIVE 100 REEDY WA M20/0443 LIVE 100 REEDY WA M20/0438 LIVE 100 REEDY WA M20/0437 LIVE 100 REEDY WA M20/0421 LIVE 100 REEDY WA M20/0420 LIVE 100 REEDY WA M20/0309 LIVE 100 REEDY WA M20/0249 LIVE 100 REEDY WA M20/0219 LIVE 100 REEDY WA M20/0212 LIVE 100 REEDY WA M20/0107 LIVE 100 REEDY WA M20/0071 LIVE 100 REEDY WA M20/0070 LIVE 100 REEDY WA M20/0068 LIVE 100 REEDY WA M20/0045 LIVE 100 REEDY WA M20/0012 LIVE 100 REEDY WA L51/0099 LIVE 100 REEDY WA L51/0091 LIVE 100 ASX ANNOUNCEMENT – SEPTEMBER 2026 QUARTERLY ACTIVITIES REPORT 26 October 2026 pg. 11 Project Location Tenement Status Beneficial Interest (%) REEDY WA L51/0081 LIVE 100 REEDY WA L51/0079 LIVE 100 REEDY WA L51/0078 LIVE 100 REEDY WA L51/0051 LIVE 100 REEDY WA L51/0031 LIVE 100 REEDY WA L51/0030 LIVE 100 REEDY WA L51/0029 LIVE 100 REEDY WA L20/0075 LIVE 100 REEDY WA L20/0017 LIVE 100 REEDY WA L20/0010 LIVE 100 REEDY WA L20/0008 LIVE 100 REEDY WA G51/0026 LIVE 100 REEDY WA G51/0017 LIVE 100 REEDY WA G51/0015 LIVE 100 REEDY WA G51/0014 LIVE 100 REEDY WA G51/0013 LIVE 100 REEDY WA M51/0254 LIVE 100 REEDY WA M51/0237 LIVE 100 REEDY WA M51/0236 LIVE 100 REEDY WA M51/0235 LIVE 100 REEDY WA M20/0214 LIVE 100 REEDY WA M20/0077 LIVE 100 REEDY WA M20/0073 LIVE 100 REEDY WA M20/0069 LIVE 100 REEDY WA L20/0018 LIVE 100 REEDY WA E51/2341 PENDING 100 REEDY WA E51/2337 PENDING 100 REEDY WA E20/1125 PENDING 100 REEDY WA E20/1129 PENDING 100 ASX ANNOUNCEMENT – SEPTEMBER 2026 QUARTERLY ACTIVITIES REPORT 26 October 2026 pg. 12 Appendix B– South Emu-Triton Drillhole Collars Hole ID Depth (m) Local East Local North MGA 2020 East MGA 2020 North Elevation Dip Local Azimuth Grid Azimuth 26REDD004 720.3 20443 40563 626150 6998430 491 -54 258 267 • Coordinates and azimuths are reported in the Reedy 2014 local grid and MGA2020 Zone 50 Grid. • All holes are diamond drillholes ASX ANNOUNCEMENT – SEPTEMBER 2026 QUARTERLY ACTIVITIES REPORT 26 October 2026 pg. 13 Appendix C – South Emu-Triton Significant Intercepts Prospect Hole ID Depth From Depth To Interval (m) Au (g/t) Gram. Metre Au Triton 26REDD004 664.0 667.0 3.0 0.94 2.82 • Intervals reported as downhole widths. • Significant intercepts are reported using a 0.5 g/t Au lower cut-off grade, allowing for a maximum of 2 m of continuous internal dilution. A minimum downhole interval width of ≥1 m is applied. Intercepts with an average grade exceeding 0.5 g/t Au are reported. • Gram-metre Au = Interval (m) x Au (g/t) ASX ANNOUNCEMENT – SEPTEMBER 2026 QUARTERLY ACTIVITIES REPORT 26 October 2026 pg. 14 Appendix D – JORC Tables 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 1m samples from which 3kg was pulverised to produce a 30g 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. • Only diamond core sample results are released in this announcement. • The reported results include HQ3 core samples. • Diamond samples were collected from selected intervals ranging from 0.3m to 1.5m. • Core was sampled on geologically defined intervals, composed of half-core. • Sampling the same half side of the core is conducted, where reliable orientation lines are available. • All samples were pulverised to a nominal 80% passing 75 microns to produce a 50g charge for fire assay. 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.). • Drilling at South Emu and Triton is being completed to industry standard by DDH1 Drilling Pty Ltd, operating a truck mounted diamond drilling rig. • Diamond drilling produced HQ3 core (26REDD004). • Core is oriented using a digital IMDEX® ACT 3C orientation system. Drill sample recovery • Method of recording and assessing core and chip sample recoveries and results assessed. • Measures taken to maximise sample recovery and ensure representative nature of the samples. • Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential loss/gain of fine/coarse material. • Core recovery was considered good, with no material core loss observed within the reported mineralised intervals. • The Valiant Gold Ltd diamond drill program has recorded recovery and sample quality of core; however, no quantitative analysis of the relationship between recovery and grade was reported and no material bias is considered evident based on available information 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. • The logging is qualitative in nature, with the entirety of drillholes logged. • Logging is completed to industry standard. • Valiant diamond drill holes are all orientated and have been logged in detail for geology, veining, alteration, mineralisation and orientated structure. • Core has been logged in enough detail to allow for the relevant mineral resource estimation techniques to be employed. • Diamond core is photographed both wet and dry and the photographs are stored on Valiant Gold Ltd servers. • Logging is completed in Plexer® software before being transferred into Micromine® for subsequent review and validation. ASX ANNOUNCEMENT – SEPTEMBER 2026 QUARTERLY ACTIVITIES REPORT 26 October 2026 pg. 15 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. • 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. • Diamond core was cut along the core axis, with half-core samples submitted for analysis. • Sample intervals are commonly sub-set via geological features as appropriate. • QA/QC is currently ensured during the sub- sampling stages process via the use of the systems of an independent NATA / ISO accredited laboratory contractor. • Samples undergo fine pulverisation of the entire sample by an LM5 type mill to achieve a 75µ product prior to splitting. • Sample sizes are considered appropriate for the grain size of the mineralisation. • The un-sampled half of diamond core is retained for check sampling if required. 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. • Valiant Gold Ltd reporte