Announcement PDF ASX RELEASE 29 JANUARY 2026 Horizon Gold Limited ACN: 614 175 923 Suite 8, Level 3, 47 Havelock Street, West Perth WA 6005 | PO Box 39, West Perth WA 6872 Telephone: +61 8 6331 6092 | Email: info@horizongold.com.au | Website: www.horizongold.com.au 1 QUARTERLY ACTIVITIES REPORT FOR THE PERIOD ENDED 31 DECEMBER 2025 Key Points  Updated Gum Creek Gold Project Mineral Resource Estimate (MRE) of 37.97Mt @ 1.89g/t Au for 2.30Moz represents an 8% increase in total ounces and a 26% increase in gold grade when compared with the May 2023 MRE.  Indicated gold resource is 26.72Mt @ 1.90g/t Au for 1.63Moz representing a 21% increase in Indicated ounces compared to the May 2023 MRE and now representing 71% of the total MRE.  Free milling portion of the resource estimate is 28.64Mt @ 1.74g/t Au for 1.60Moz, representing 70% of the total MRE ounces.  All resource areas are located on granted mining leases and remain open along strike or at depth showing strong potential for additional resource growth with further drilling.  Significant shallow intercepts returned from RC resource expansion drilling at Goldfinch and Robin Prospects included: Goldfinch Prospect:  11m @ 3.18g/t Au from 84m including 5m @ 6.41g/t Au from 85m  7m @ 3.63g/t Au from 35m including 1m @ 22.4g/t Au from 36m  11m @ 2.21g/t Au from 70m including 4m @ 4.52g/t Au from 72m  15m @ 1.55g/t Au from 24m including 6m @ 2.10g/t Au from 28m  18m @ 1.05g/t Au from 83m  2m @ 7.42g/t Au from 73m  2m @ 7.39g/t Au from 4m Robin Prospect:  7m @ 2.46g/t Au from 27m including 2m @ 7.61g/t Au from 30m  Drilling aimed at testing high priority targets down plunge of previous high grade drill intercepts including 15m @ 28.5g/t Au from 346m and 10m @ 8.9g/t Au from 190m at Kingfisher has been completed. Final assay results are pending.  Diamond drilling at Omega aimed at testing the down-plunge extensions to previous high grade drill intercepts including 30m @ 21.1g/t Au from 57m and 13m @ 10.8g/t Au from 122m is underway with 1 hole completed to date. All assays are pending.  Work on the Gum Creek Feasibility Study is progressing well and remains on schedule for completion H1 CY 2026 ________________________________________________________________________________ 2 Horizon Gold Limited (ASX: HRN) (Horizon or the Company) is focussed on progressing its exploration and development activities at the 100%-owned Gum Creek Gold Project (Gum Creek or the Project) located in the Mid-West Region of Western Australia (Figure 1). Gum Creek has historically produced more than 1 million ounces of gold and currently hosts a recently updated gold resource of 37.97Mt @ 1.89g/t Au for 2.30 million ounces1 . The Project currently covers 644km2 of granted tenure over the highly prospective and underexplored Gum Creek greenstone belt, which contains 37 open pit and three underground gold mines. During the quarter the Company completed an update to the Gum Creek Mineral Resource Estimate, received results from further resource expansion drilling, completed deep diamond drilling at the Kingfisher Prospect, commenced diamond drilling at the Omega Prospect, and advanced the Gum Creek Feasibility Study, which remains on schedule for completion H1 CY 2026. Figure 1: Gum Creek Gold Project and surrounding gold resources and operating gold processing facilities. 1 Refer to Horizon Gold Limited ASX Announcement titled “Gum Creek Project Gold Resource Update” dated 4 November 2025. 3 Updated Gum Creek Gold Project MRE A revised Gum Creek MRE of 37.97Mt @ 1.89g/t Au for 2.30Moz2 was released during the quarter. The resource represents an 8% increase in total ounces and a 26% increase in gold grade when compared with the May 2023 MRE. The Indicated gold resource is 26.72Mt @ 1.90g/t Au for 1.63Moz representing a 21% increase in ounces from the May 2023 MRE and 71% of the total MRE. The free milling portion of the resource estimate is 28.64Mt @ 1.74g/t Au for 1.60Moz representing 70% of the total MRE ounces. The updated resource is summarised in Table A and broken down by material type and metallurgical categories in Tables B and C. Table D compares the current and previous MRE’s by resource category, and the location of each resource is shown in Figure 2. The Company considers the MRE to have a reasonable prospect for eventual economic extraction (RPEEE) based on the comparison of gold resource tonnes, thickness, and grades of the deposits for open pit and underground mining operations on granted mining leases in similar mining jurisdictions to that of Western Australia. Table A: Gum Creek Gold Resources as at 4 November 2025 Resource Resource Date Cut-off grade (g/t Au) Indicated Inferred Total Tonnes Au (g/t) Gold (oz) Tonnes Au (g/t) Gold (oz) Tonnes Au (g/t) Gold (oz) Swan/Swift OC Nov-25 0.4 6,661,000 1.86 399,000 335,000 1.54 16,600 6,996,000 1.85 415,600 Swan UG* Nov-25 1.5 935,000 4.45 133,700 798,000 3.90 100,000 1,733,000 4.19 233,700 Swift UG* Nov-25 1.5 35,000 2.22 2,500 813,000 2.54 66,300 848,000 2.52 68,800 Wilsons UG* Nov-25 1.5 2,759,000 4.37 387,400 126,000 3.16 12,800 2,885,000 4.31 400,200 Howards Nov-25 0.4 6,095,000 1.13 221,800 751,000 0.97 23,500 6,846,000 1.11 245,300 Kingfisher OC Nov-25 0.6 1,139,000 2.05 75,100 79,000 1.50 3,800 1,218,000 2.01 78,900 Kingfisher UG* Nov-25 1.5 94,000 2.71 8,200 949,000 3.45 105,300 1,043,000 3.38 113,500 Heron May-23 0.6 330,000 2.11 22,400 1,822,000 1.51 88,200 2,152,000 1.60 110,600 Eagle Nov-25 0.4 817,000 1.27 33,400 1,202,000 1.29 50,000 2,019,000 1.28 83,400 Heron South May-23 0.8 720,000 1.79 41,400 761,000 1.53 37,500 1,481,000 1.66 78,900 Shiraz Nov-25 0.4 1,947,000 1.04 65,400 372,000 0.94 11,200 2,319,000 1.03 76,600 Wyooda** Nov-25 0.8 557,000 1.54 27,500 718,000 1.56 36,100 1,275,000 1.55 63,600 Snook Jul-22 0.8 75,000 2.57 6,200 846,000 1.76 47,800 921,000 1.82 54,000 Toedter Nov-25 0.6 905,000 1.31 38,200 99,000 1.32 4,200 1,004,000 1.31 42,400 Hawk Nov-25 0.6 591,000 1.38 26,200 167,000 1.27 6,800 758,000 1.35 33,000 Specimen Well Nov-25 0.6 431,000 1.49 20,600 114,000 1.31 4,800 545,000 1.45 25,400 Wedge Nov-25 0.6 427,000 1.42 19,500 56,000 2.83 5,100 483,000 1.58 24,600 Camel Bore Jul-22 0.8 379,000 1.47 17,900 100,000 1.21 3,900 479,000 1.42 21,800 Melbourne Bitter Nov-25 0.6 318,000 1.46 14,900 157,000 1.27 6,400 475,000 1.39 21,300 Hyperno-Reliance Nov-25 0.6 295,000 1.52 14,400 183,000 1.02 6,000 478,000 1.33 20,400 Kearrys May-23 0.6 450,000 1.24 18,000 46,000 1.35 2,000 496,000 1.25 20,000 Psi Jul-22 0.8 100,000 2.08 6,700 226,000 1.69 12,300 326,000 1.81 19,000 Deep South Reliance Nov-25 0.6 229,000 1.53 11,300 17,000 0.91 500 246,000 1.49 11,800 Orion Jul-22 0.8 69,000 1.49 3,300 182,000 1.40 8,200 251,000 1.43 11,500 Eagles Peak May-23 0.6 264,000 1.19 10,100 41,000 0.99 1,300 305,000 1.16 11,400 Wahoo Jul-22 0.8 - - - 258,000 1.25 10,400 258,000 1.25 10,400 Fangio May-23 0.6 99,000 1.32 4,200 30,000 1.35 1,300 129,000 1.33 5,500 Total 26,721,000 1.90 1,629,300 11,248,000 1.86 672,300 37,969,000 1.89 2,301,600 * Cut-off grades for Swan, Swift, Wilsons and Kingfisher underground Indicated and Inferred are 1.5g/t Au. ** Wyooda includes the Kingston Town, Think Big and Manikato resources which are within 600m and 200m of each other respectively. Note: Figures have been rounded. 2 Refer to Horizon Gold Limited ASX Announcement titled “Gum Creek Project Gold Resource Update” dated 4 November 2025. 4 The information in this announcement that relates to the reporting of the Kingston Town, Manikato, Snook, Camel Bore, Psi, Orion, and Wahoo Mineral Resources has been extracted from the Horizon Gold Limited ASX announcement titled “32% Increase in Resources at Gum Creek Gold Project” dated 25 July 2022 and is available to view on https://horizongold.com.au. The information in this announcement that relates to the reporting of the Heron, Heron South, Kearrys, Eagles Peak and Fangio Mineral Resources has been extracted from the Horizon Gold Limited ASX announcement titled “19% Increase in Gold Resources at Gum Creek Project” dated 15 May 2023 and is available to view on https://horizongold.com.au. Table B: Gum Creek Mineral Resources by Material Type as at 4 November 2025 Material Type Indicated Inferred Total Tonnes Au (g/t) Ounces Tonnes Au (g/t) Ounces Tonnes Au (g/t) Ounces Oxide 7,137,000 1.41 323,000 2,217,000 1.30 92,800 9,354,000 1.38 415,800 Transition 5,424,000 1.57 273,300 2,184,000 1.46 102,700 7,608,000 1.54 376,000 Fresh 14,160,000 2.27 1,033,000 6,847,000 2.17 476,800 21,007,000 2.24 1,509,800 Total 26,721,000 1.90 1,629,300 11,248,000 1.86 672,300 37,969,000 1.89 2,301,600 Note: Figures have been rounded. Table C: Gum Creek Mineral Resources by Metallurgical Category as at 4 November 2025 Material Type Indicated Inferred Total Tonnes Au (g/t) Ounces Tonnes Au (g/t) Ounces Tonnes Au (g/t) Ounces Free Milling 21,229,000 1.65 1,126,600 7,408,000 2.00 477,000 28,637,000 1.74 1,603,600 Refractory 5,492,000 2.85 502,700 3,840,000 1.58 195,300 9,332,000 2.33 698,000 Total 26,721,000 1.90 1,629,300 11,248,000 1.86 672,300 37,969,000 1.89 2,301,600 Notes: Figures have been rounded. Metallurgical test work indicates oxide mineralisation at all deposits is free milling, transition mineralisation from Swan/Swift, Howards, Kingfisher, Eagle, Kingston Town, Think Big, Hawk, Toedter, Wedge, Specimen Well, Kearrys, Hyperno-Reliance, Melbourne Bitter, Deep South Reliance, Eagles Peak, Orion, Wahoo, and Fangio is free milling, and fresh mineralisation from Swan/Swift, Howards, Kingfisher, Eagle, Hawk, Toedter, Wedge, Hyperno-Reliance, Melbourne Bitter, Deep South Reliance, Eagles Peak, Orion, and Wahoo is free milling. Due to the presence of pyrrhotite affecting oxygen and cyanide consumption, transition mineralisation from Psi and fresh material from Psi, Kearrys and Fangio has variable gold recoveries >85% and are classified as “low recovery ore” however this ore has been included in the free milling category. Transition mineralisation from Wilsons, Heron, Shiraz, Manikato, Heron South, Snook, and Camel Bore, and fresh mineralisation from Wilsons, Heron, Shiraz, Kingston Town, Manikato, Think Big, Heron South, Snook, Camel Bore and Specimen Well have variable gold recoveries associated with arsenopyrite and are classified as refractory. Table D: Gum Creek Mineral Resources May 2023 / 4 November 2025 Comparison Resource Category 2023 Gum Creek MRE 2025 Gum Creek MRE Variance Tonnes Au (g/t) Ounces Tonnes Au (g/t) Ounces Tonnes Au (g/t) Ounces Indicated 28,193,000 1.48 1,346,000 26,721,000 1.90 1,629,300 -5% 28% 21% Inferred 16,257,000 1.51 791,300 11,248,000 1.86 672,300 -31% 23% -15% Total 44,450,000 1.50 2,137,300 37,969,000 1.89 2,301,600 -15% 26% 8% Note: Figures have been rounded. 5 Figure 2: Gum Creek Gold Project Mineral Resources, Advanced Mineral Resource Targets and Exploration Targets over simplified geology 6 Goldfinch Prospect During the quarter the Company completed 31 RC holes for 2,415m at the Goldfinch Prospect located 2km south-southeast of the old Gidgee Mill. Assay results confirmed previously identified shallow gold mineralisation striking north-northwest and dipping moderately to the southwest. Drilling returned the following significant gold intercepts3 (Figure 3):  11m @ 3.18g/t Au from 84m including 5m @ 6.41g/t Au from 85m (GFRC029)  7m @ 3.63g/t Au from 35m including 1m @ 22.4g/t Au from 36m (GFRC007)  11m @ 2.21g/t Au from 70m including 4m @ 4.52g/t Au from 72m (GFRC021)  15m @ 1.55g/t Au from 24m including 6m @ 2.10g/t Au from 28m (GFRC015)  18m @ 1.05g/t Au from 83m (GFRC031)  2m @ 7.42g/t Au from 73m (GFRC030)  2m @ 7.39g/t Au from 4m (GFRC003)  10m @ 1.06g/t Au from 75m including 3m @ 2.94g/t Au from 78m (GFRC017)  5m @ 2.09g/t Au from 6m including 1m @ 6.24g/t Au from 10m (GFRC028)  4m @ 2.60g/t Au from 29m including 2m @ 4.58g/t Au from 29m (GFRC019) Additional drilling along strike to the north and down dip is required. Figure 3: Goldfinch and Toucan Prospects drill hole location plan showing historic holes coloured by max. downhole gold, and recent drill hole traces (white) and selected recent gold intercepts >2.5 GxM labelled over satellite image. 3 Refer to Horizon Gold Limited ASX Announcement titled “Impressive shallow gold intercepts returned from RC drilling” dated 1 December 2025. 7 Robin Prospect Seven RC holes for 585m were drilled at the Robin Prospect located 2km southeast of the old Gidgee Mill. Assay results confirmed shallow flat lying supergene gold mineralisation extending to the south of the Robin open pit. Drilling returned the following significant gold intercepts (Figure 4):  7m @ 2.46g/t Au from 27m including 2m @ 7.61g/t Au from 30m (RORC001)  6m @ 0.92g/t Au from 59m including 1m @ 3.67g/t Au from 64m (RORC003) Figure 4: Robin Prospect drill hole location plan showing historic holes coloured by max. downhole gold and recent drill hole traces (white) with gold intercepts (labelled) over satellite image. Thornbill West Prospect The Company completed nine RC holes for 702m at the Thornbill West Prospect located 1.6km southeast of the old Gidgee Mill. Assay results identified gold mineralisation extending to the north of the prospect where further drilling is required. Drilling returned the following significant gold intercepts (Figure 5):  2m @ 1.53g/t Au from 23m (THRC001)  9m @ 0.64g/t Au from 2m (THRC001)  9m @ 0.28g/t Au from 35m (THRC004) 8 Figure 5: Thornbill Prospect drill hole location plan showing historic holes coloured by max. downhole gold and recent drill hole traces (white) and recent gold intercepts (labelled) over satellite image. Toucan Prospect Eight RC holes for 650m were drilled at the Toucan Prospect located 2.6km southeast of the old Gidgee Mill. Drilling returned a best intercept of 1m @ 2.57g/t Au from 32m (TORC003) and failed to confirm northern or southern extensions to gold mineralisation (Figure 3). No further drilling is warranted at Toucan. Deep Diamond Drilling Progress Deep diamond drilling aimed at testing high priority targets down plunge of existing high-grade drill intercepts at Kingfisher, including 15m @ 28.5g/t Au from 346m and 10m @ 8.9g/t Au from 190m4 has been completed. Final assay results are pending. Diamond drilling at the Omega prospect has commenced with one hole completed to date. The program is testing for potential mineralised extensions beneath impressive previous drill intercepts including 30m @ 21.1g/t Au from 57m and 13m @ 10.8g/t Au from 122m5 . All assays are pending. 4 Refer to Horizon Gold Limited ASX announcements titled “Diamond drilling returns 15m @ 28.5g/t Au from Kingfisher" dated 12 December 2022 and “Outstanding gold intercepts returned from Gum Creek Diamond Drilling” dated 15 March 2022. 5 Refer to Horizon Gold Limited ASX announcement titled “Gum Creek Geological Review” dated 15 February 2021 9 Feasibility Study The Company is focused on completing the free milling Feasibility Study and highlighting the potential for developing a significant stand-alone gold operation at Gum Creek. Work on the Feasibility Study is progressing well. Metallurgical, geotechnical, processing, waste rock, tailings and soil landform reports have been received, all environmental and heritage surveys have been completed, surface water infrastructure designs, pit and waste rock dump designs and mine infrastructure designs have been completed, and water management plans and water balance modelling are almost complete. The Study remains on schedule for completion H1 CY 2026. AI-Assisted Mineral Discovery Platform (DORA) During the quarter the Company also completed a first pass regional prospectivity analysis using VRIFY’s proprietary AI-Assisted Mineral Discovery Platform, DORA. The exercise will help the Company prioritise and validate high-potential targets and to ultimately accelerate growth of the Project’s existing gold resource. Exploration target review and target field validation will be undertaken in Q1 2026, and continuous data addition and target refinement will continue throughout 2026. Corporate Additional ASX Listing Rule Disclosures As required by ASX Listing Rule 5.3, the Company advises it spent $3,586,000 on exploration and evaluation activities during the quarter. The expenditure is predominantly related to costs associated with resource drilling, resource estimation consultants, the Gum Creek Feasibility Study and ongoing tenement rents and rates. There was no mining development or production activities conducted during the quarter. The total amount paid to directors of the entity and their related parties and associates (Section 6 of Appendix 5B) was $137,000, encompassing the Managing Directors salary, Executive Director fees, Non-Executive Directors’ fees and associated superannuation, and $41,000 relating to geological drafting, database administration services and other services. As at 31 December 2025, Horizon had a cash at hand balance of $4,112,000. Mining Tenements The status of the Company’s mining tenements as at 31 December 2025 are detailed in Appendix 1. This ASX announcement was authorised for release by the Horizon Board. For further information contact: Leigh Ryan Managing Director +61 8 6331 6092 10 Competent Persons Statement: The information that relates to Exploration Results in this announcement is based on information compiled by Mr Leigh Ryan, who is a member of The Australasian Institute of Geoscientists. Mr Ryan is the Managing Director of Horizon Gold Limited and holds shares and options in the Company, Mr Ryan 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 Ryan consents to the inclusion in the report of the matters based on information provided in the form and context in which it appears. No New Information or Data: This announcement contains references to Mineral Resource estimates, all of which have been cross referenced to previous market announcements. The Company confirms that it is not aware of any additional information or data that materially affects the information included in the relevant market announcements and, in the case of estimates of Mineral Resources, that all material assumptions and technical parameters underpinning the estimates in the relevant market announcement continue to apply and have not materially changed. Forward Looking Statements: This ASX announcement may contain certain “forward-looking statements” which may not have been based solely on historical facts but rather may be based on the Company’s current expectations about future events and results. Where the Company expresses or implies an expectation or belief as to future events or results, such expectation or belief is expressed in good faith and believed to have a reasonable basis. However, forward looking statements are subject to risks, uncertainties, assumptions and other factors, which could cause actual results to differ materially from future results expressed, projected or implied by such forward-looking statements. Such risks include, but are not limited to metals price volatility, currency fluctuations, as well as political and operational risks and governmental regulation and judicial outcomes. 11 APPENDIX 1: (a) Horizon Group Mining Tenements held as at 31 December 2025 Lease Location Area of Interest Status Expiry Date Holder Horizon's Interest Mineral Rights E51/1538 Gidgee Gum Creek Granted 03-Feb-26 GUM CREEK 100% All E51/1844 Gidgee Gum Creek Granted 22-Jan-28 GUM CREEK 100% All E51/2027 Gidgee Gum Creek Granted 09-Sep-26 GUM CREEK 100% All E51/2028 Gidgee Gum Creek Granted 09-Sep-26 GUM CREEK 100% All E53/1725 Gidgee Gum Creek Granted 03-Jul-27 GUM CREEK 100% All E53/1955 Gidgee Gum Creek Granted 18-Jan-28 GUM CREEK 100% All L51/93 Gidgee Gum Creek Granted 24-Nov-34 GUM CREEK 100% Infrastructure L53/95 Gidgee Gum Creek Granted 13-Dec-28 GUM CREEK 100% Infrastructure L53/96 Gidgee Gum Creek Granted 13-Dec-28 GUM CREEK 100% Infrastructure L53/199 Gidgee Gum Creek Granted 29-Jul-36 GUM CREEK 100% Infrastructure L57/20 Gidgee Gum Creek Granted 20-Jun-44 GUM CREEK 100% Infrastructure L57/47 Gidgee Gum Creek Granted 13-Aug-34 GUM CREEK 100% Infrastructure M51/104 Gidgee Gum Creek Granted 11-May-29 GUM CREEK 100% All M51/105 Gidgee Gum Creek Granted 09-May-31 GUM CREEK 100% All M51/157 Gidgee Gum Creek Granted 09-Mar-30 GUM CREEK 100% All M51/185 Gidgee Gum Creek Granted 18-Feb-30 GUM CREEK 100% All M51/186 Gidgee Gum Creek Granted 18-Feb-30 GUM CREEK 100% All M51/290 Gidgee Gum Creek Granted 09-May-31 GUM CREEK 100% All M51/410 Gidgee Gum Creek Granted 10-Mar-34 GUM CREEK 100% All M51/458 Gidgee Gum Creek Granted 09-Feb-35 GUM CREEK 100% All M53/10 Gidgee Gum Creek Granted 24-Nov-25 GUM CREEK 100% All M53/11 Gidgee Gum Creek Granted 24-Nov-25 GUM CREEK 100% All M53/105 Gidgee Gum Creek Granted 29-Aug-30 GUM CREEK 100% All M53/153 Gidgee Gum Creek Granted 28-Jun-32 GUM CREEK 100% All M53/251 Gidgee Gum Creek Granted 02-Sep-34 GUM CREEK 100% All M53/500 Gidgee Gum Creek Granted 21-May-42 GUM CREEK 100% All M53/716 Gidgee Gum Creek Granted 07-Sep-40 GUM CREEK 100% All M53/904 Gidgee Gum Creek Granted 28-Sep-42 GUM CREEK 100% All M53/988 Gidgee Gum Creek Granted 12-Mar-45 GUM CREEK 100% All M57/634 Gidgee Gum Creek Granted 14-Jul-35 GUM CREEK 100% All M57/635 Gidgee Gum Creek Granted 01-Sep-35 GUM CREEK 100% All E53/2162 Gidgee Gum Creek Granted 07-Feb-27 GUM CREEK 100% All E53/2168 Gidgee Gum Creek Granted 01-Mar-27 GUM CREEK 100% All E57/1177 Gidgee Gum Creek Granted 30-Jun-27 GUM CREEK 100% All P53/1702 Gidgee Gum Creek Granted 30-Sep-27 GUM CREEK 100% All E57/1405 Gidgee Gum Creek Application N/A GUM CREEK 100% All E57/1407 Gidgee Gum Creek Granted 13-Feb-30 GUM CREEK 100% All E51/2203 Gidgee Gum Creek Application N/A GUM CREEK 100% All E53/2321 Gidgee Gum Creek Granted 04-Dec-29 GUM CREEK 100% All E57/1421 Gidgee Gum Creek Granted 17-Dec-29 GUM CREEK 100% All L51/136 Gidgee Gum Creek Granted 07-Jan-46 GUM CREEK 100% Infrastructure L53/307 Gidgee Gum Creek Granted 23-Jul-45 GUM CREEK 100% Infrastructure L53/308 Gidgee Gum Creek Granted 23-Jul-45 GUM CREEK 100% Infrastructure 12 Lease Location Area of Interest Status Expiry Date Holder Horizon's Interest Mineral Rights L53/310 Gidgee Gum Creek Application N/A GUM CREEK 100% Infrastructure L57/71 Gidgee Gum Creek Granted 17-Sep-45 GUM CREEK 100% Infrastructure L57/74 Gidgee Gum Creek Granted 31-Aug-46 GUM CREEK 100% Infrastructure L57/75 Gidgee Gum Creek Granted 31-Aug-46 GUM CREEK 100% Infrastructure L57/76 Gidgee Gum Creek Granted 01-Oct-46 GUM CREEK 100% Infrastructure G57/12 Gidgee Gum Creek Application N/A GUM CREEK 100% Infrastructure G57/13 Gidgee Gum Creek Application N/A GUM CREEK 100% Infrastructure E57/1463 Gidgee Gum Creek Granted 04-Nov-30 GUM CREEK 100% All E57/1464 Gidgee Gum Creek Granted 01-Jul-30 GUM CREEK 100% All E = Exploration Licence (WA) M = Mining Lease (WA) P = Prospecting Licence (WA) L = Miscellaneous Licence (WA) G = General Purpose Lease (WA) Holder: GUM CREEK = Gum Creek Gold Mines Pty Ltd (100% Subsidiary of Horizon Gold Limited) * Renewal Application submitted (b) Changes of Interest in mining tenements during the quarter Tenement Reference and Location Nature of Interest Interest at beginning of Quarter Interest at end of Quarter G57/13 Gidgee Application 0% 100% L57/76 Gidgee Application Granted 100% 100% E57/1463 Gidgee Application Granted 100% 100% (c) Farm-in or farm-out changes during the Quarter Tenement Reference and Location Nature of Interest Interest at beginning of Quarter Interest at end of Quarter Nil Rule 5.5 ASX Listing Rules Appendix 5B (17/07/20) Page 1 + See chapter 19 of the ASX Listing Rules for defined terms. Appendix 5B Mining exploration entity or oil and gas exploration entity quarterly cash flow report Name of entity HORIZON GOLD LIMITED ABN Quarter ended (“current quarter”) 27 614 175 923 31 DECEMBER 2025 Consolidated statement of cash flows Current quarter $A’000 Year to date (6 months) $A’000 1. Cash flows from operating activities 25 29 1.1 Receipts from customers 1.2 Payments for - - (a) exploration & evaluation (if expensed) (b) development - - (c) production - - (d) staff costs (incl for Care & Maint.) (28) (54) (e) direct site Care & Maint. costs - (7) (f) administration and corporate costs (250) (551) 1.3 Dividends received (see note 3) - - 1.4 Interest received 55 102 1.5 Interest and other costs of finance paid (2) (2) 1.6 Income taxes paid - - 1.7 Government grants and tax incentives - - 1.8 Other (WA State MRF payments) - (252) 1.9 Net cash from / (used in) operating activities (200) (735) 2. Cash flows from investing activities - - 2.1 Payments to acquire or for: (a) entities (b) tenements - - (c) property, plant and equipment - - (d) exploration & evaluation (if capitalised) (3,586) (6,166) (e) investments - - (f) other non-current assets - - Appendix 5B Mining exploration entity or oil and gas exploration entity quarterly cash flow report ASX Listing Rules Appendix 5B (17/07/20) Page 2 + See chapter 19 of the ASX Listing Rules for defined terms. Consolidated statement of cash flows Current quarter $A’000 Year to date (6 months) $A’000 2.2 Proceeds from the disposal of: - - (a) entities (b) tenements - - (c) property, plant and equipment - - (d) investments - - (e) other non-current assets - - 2.3 Cash flows from loans to/from other entities - - 2.4 Dividends received (see note 3) - - 2.5 Other – security deposits paid Other – security deposits received - - - - 2.6 Net cash from / (used in) investing activities (3,586) (6,166) 3. Cash flows from financing activities - 10,891 3.1 Proceeds from issues of equity securities (excluding convertible debt securities) 3.2 Proceeds from issue of convertible debt securities - - 3.3 Proceeds from exercise of options - - 3.4 Transaction costs related to issues of equity securities or convertible debt securities (31) (581) 3.5 Proceeds from borrowings - 500 3.6 Repayment of borrowings - - 3.7 Transaction costs related to loans and borrowings - - 3.8 Dividends paid - - 3.9 Other – Lease payments - - 3.10 Net cash from / (used in) financing activities (31) 10,810 4. Net increase / (decrease) in cash and cash equivalents for the period 4.1 Cash and cash equivalents at beginning of period 8,229 503 4.2 Net cash from / (used in) operating activities (item 1.9 above) (200) (735) 4.3 Net cash from / (used in) investing activities (item 2.6 above) (3,586) (6,166) 4.4 Net cash from / (used in) financing activities (item 3.10 above) (31) 10,810 Appendix 5B Mining exploration entity or oil and gas exploration entity quarterly cash flow report ASX Listing Rules Appendix 5B (17/07/20) Page 3 + See chapter 19 of the ASX Listing Rules for defined terms. Consolidated statement of cash flows Current quarter $A’000 Year to date (6 months) $A’000 4.5 Effect of movement in exchange rates on cash held - - 4.6 Cash and cash equivalents at end of period 4,412 4,112 5. Reconciliation of cash and cash equivalents at the end of the quarter (as shown in the consolidated statement of cash flows) to the related items in the accounts Current quarter $A’000 Previous quarter $A’000 5.1 Bank balances 61 554 5.2 Call deposits 4,329 7,653 5.3 Bank overdrafts - - 5.4 Other – Term Deposits < 3 months 22 22 5.5 Cash and cash equivalents at end of quarter (should equal item 4.6 above) 4,412 8,229 6. Payments to related parties of the entity and their associates Current quarter $A'000 6.1 Aggregate amount of payments to related parties and their associates included in item 1 137 6.2 Aggregate amount of payments to related parties and their associates included in item 2 41 Note: if any amounts are shown in items 6.1 or 6.2, your quarterly activity report must include a description of, and an explanation for, such payments. Appendix 5B Mining exploration entity or oil and gas exploration entity quarterly cash flow report ASX Listing Rules Appendix 5B (17/07/20) Page 4 + See chapter 19 of the ASX Listing Rules for defined terms. 7. Financing facilities Note: the term “facility’ includes all forms of financing arrangements available to the entity. Add notes as necessary for an understanding of the sources of finance available to the entity. Total facility amount at quarter end $A’000 Amount drawn at quarter end $A’000 7.1 Loan facilities - - 7.2 Credit standby arrangements - - 7.3 Other (please specify) - - 7.4 Total financing facilities - - 7.5 Unused financing facilities available at quarter end - 7.6 Include in the box below a description of each facility above, including the lender, interest rate, maturity date and whether it is secured or unsecured. If any additional financing facilities have been entered into or are proposed to be entered into after quarter end, include a note providing details of those facilities as well. 8. Estimated cash available for future operating activities $A’000 8.1 Net cash from / (used in) operating activities (item 1.9) (200) 8.2 (Payments for exploration & evaluation classified as investing activities) (item 2.1(d)) (3,586) 8.3 Total relevant outgoings (item 8.1 + item 8.2) (3,786) 8.4 Cash and cash equivalents at quarter end (item 4.6) 4,412 8.5 Unused finance facilities available at quarter end (item 7.5) - 8.6 Total available funding (item 8.4 + item 8.5) 4,412 8.7 Estimated quarters of funding available (item 8.6 divided by item 8.3) 1.17 Note: if the entity has reported positive relevant outgoings (ie a net cash inflow) in item 8.3, answer item 8.7 as “N/A”. Otherwise, a figure for the estimated quarters of funding available must be included in item 8.7. 8.8 If item 8.7 is less than 2 quarters, please provide answers to