Announcement PDF ASX Announcement & Media Release | ASX: KAL | 14 October 2026 RC drilling underway at Lighthorse, aircore at Rebecca Sequence shortly KalgoorlieGoldMiningLimited | ACN645666164 Suite 2, 1209 Hay St, West Perth WA 6005, Australia T: +61 (0)8 6002 2700 | E: info@kalgoldmining.com.au | www.kalgoldmining.com.au Kalgoorlie Gold Mining (ASX: KAL) (‘KalGold’ or ‘the Company’) is pleased to announce that it has fast- tracked two drill programs at Pinjin. Reverse Circulation (RC) drilling has commenced at Lighthorse to test high-grade gold mineralisation distributions at depth. Additionally, aircore drilling is also scheduled to commence shortly at the Rebecca Sequence target area, east of Lighthorse as part of KalGold’s ongoing exploration of the Laverton Tectonic Zone (LTZ) for significant concealed gold deposits. Follow-up Lighthorse RC drill program underway Recent RC drilling at Lighthorse (ASX: KAL, 02/09/2026) returned high-grade gold assays that peaked at 19.70 g/t Au (KGRC26036, 145-146m) in fresh rock together with thick zones of mineralisation throughout the 1.6 km strike length of the prospect area. Gold mineralisation remains open at depth, with grades appearing to increase at depth on several sections. These positive results have prompted KalGold to fast-track RC drilling at Lighthorse to test gold distributions at depth. The program’s key aims include: • Testing directly beneath recent high-grade mineralisation for continuity along strike and to depth • Turning the rigs around to drill towards the west, testing a steeply east-dipping geology and mineralisation model The program comprises a maximum 22 drill holes spaced irregularly throughout the footprint of the Lighthorse prospect, encompassing the two main centres of gold mineralisation (discovery area, and northern). Drilling commenced on Monday 12 October 2026 and is expected to take several weeks to complete. First-pass Rebecca Sequence aircore drill program starting shortly Aircore drilling will commence shortly on the Rebecca Sequence target area, centred approximately 4 km east of the Lighthorse prospect. The program builds on KalGold’s recent LTZ Flexure exploration and forms part of KalGold’s broader strategy to assess new areas of the LTZ for gold mineralisation (KalGold Gold discovery strategy at Pinjin). The program will be the first systematic testing of the high grade metamorphic rocks on the eastern side of the LTZ. The Rebecca Sequence hosts Ramelius Resources' Lake Rebecca Gold Project, which contains Mineral Resources of approximately 1.4 Moz Au (ASX: RMS 25 August 2026) around 16 km to the south KalGold’s tenure. The program aims to detect coherent, low-level gold anomalism that will define targets for follow-up aircore and RC drilling. The program comprises a total of 120 holes with an estimated depth of approximately 40 m (with final depths defined by the rig’s inability to penetrate further – “blade refusal”)). Drilling will be completed on a nominal 400 m by 100 m grid pattern to provide broad first pass coverage. The program is scheduled to commence around 20 October 2026 and will run concurrently with the RC drill program at Lighthorse. Page 2 RC drilling underwayatLighthorse Figure 1 – New drill programs at the Pinjin Gold Project (yellow labels) showing planned RC collars at Lighthorse (and northern Lighthorse) and first-pass aircore collars over the Rebecca Sequence. Projection: MGA 94 Zone 51. Authorised for lodgement by the Board of Kalgoorlie Gold Mining Limited. For further information regarding KalGold, please visit www.kalgoldmining.com.au or contact: Matt Painter Managing Director and Chief Executive Officer Tel +61 8 6002 2700 Follow KalGold on social media. Page 3 RC drilling underwayatLighthorse About the Pinjin Project The Pinjin Gold Project is located in a Tier One location approximately 140km northeast of Kalgoorlie- Boulder and covers a substantial portion of the southern part of the prolific Laverton Tectonic Zone (LTZ). To the north, this major crustal structure hosts some of the Eastern Goldfields’ largest gold mines and deposits. The project is strategically located next door to Ramelius Resources (ASX: RMS) Rebecca Gold Project, where a recent definitive feasibility study outlined commencement of mining activities in the December 2027 quarter (ASX: RMS 28/10/25). Figure 2 – Location map of KalGold’s Pinjin Gold Project and the Kirgella Gift and Providence deposits, around 140 km northeast of Kalgoorlie-Boulder. The project is situated approximately 25 km north of Ramelius Resources’ (ASX: RMS) Rebecca Gold Project. Also shown is KalGold’s La Mascotte deposit 35 km east of Kalgoorlie. Projection: MGA 94 Zone 51. Page 4 RC drilling underwayatLighthorse About KalGold ASX-listed resources company Kalgoorlie Gold Mining (KalGold, ASX: KAL) is a proven, low-cost gold discoverer with a large portfolio of West Australian projects and a total gold resource in excess of 214,000 oz. KalGold prides itself on defining shallow, potentially open-pittable gold resources at very low costs, currently less than A$4.60 per ounce of gold2 . Current focus includes: • The Pinjin Project within the 30 Moz Laverton Tectonic Zone (host to Sunrise Dam, Granny Smith, Rebecca, Anglo Saxon, and Wallaby projects) is located only 16 km north along strike from Ramelius Resources (ASX: RMS) Rebecca Gold Project. A first JORC Code (2012) Inferred Mineral Resource Estimate at Kirgella Gift and Providence (2.34 Mt at 1.0 g/t Au for 76,400 oz1 ) represents the first area targeted at Pinjin, with many more targets scheduled for testing. The company aims to define further resources as these targets are tested. Some tenure is the subject of a farm-in over two years. Between this tenure and KalGold’s own tenure and applications, the Company has established a significant presence in a strategic and important gold producing region. • The Bulong Taurus Project, 35 km east of Kalgoorlie- Boulder. Contains the outcropping La Mascotte gold deposit where KalGold has defined a JORC Code (2012) Inferred Mineral Resource Estimate of 3.61 Mt at 1.19 g/t Au for 138,000 oz2 , plus a series of satellite prospects and historic workings of the Taurus Goldfield. Work continues at the project. • The Central Yandal Gold Project, 45 km east of Wiluna and in the heart of the prolific Yandal Greenstone Belt that is home to some of the world’s greatest gold discoveries since the 1990s. 1 See KalGold ASX release, “First Kirgella Gift Inferred Resource of 76,400oz from 3m”. 25 July 2024. 2 See KalGold ASX release, “La Mascotte gold deposit: First JORC (2012) Mineral Resource of 138,000 oz Au”. 7 March 2023. Page 5 RC drilling underwayatLighthorse CAUTIONARY NOTE REGARDING FORWARD-LOOKING INFORMATION This news release contains forward-looking statements and forward-looking information within the meaning of applicable Australian securities laws, which are based on expectations, estimates and projections as of the date of this news release. This forward-looking information includes, or may be based upon, without limitation, estimates, forecasts and statements as to management’s expectations with respect to, among other things, the timing and amount of funding required to execute the Company’s exploration, development and business plans, capital and exploration expenditures, the effect on the Company of any changes to existing legislation or policy, government regulation of mining operations, the length of time required to obtain permits, certifications and approvals, the success of exploration, development and mining activities, the geology of the Company’s properties, environmental risks, the availability and mobility of labour, the focus of the Company in the future, demand and market outlook for precious metals and the prices thereof, progress in development of mineral properties, the Company’s ability to raise funding privately or on a public market in the future, the Company’s future growth, results of operations, restrictions caused by COVID-19, performance, and business prospects and opportunities. Wherever possible, words such as “anticipate”, “believe”, “expect”, “intend”, “may” and similar expressions have been used to identify such forward-looking information. Forward-looking information is based on the opinions and estimates of management at the date the information is given, and on information available to management at such time. Forward-looking information involves significant risks, uncertainties, assumptions, and other factors that could cause actual results, performance, or achievements to differ materially from the results discussed or implied in the forward-looking information. These factors, including, but not limited to, fluctuations in currency markets, fluctuations in commodity prices, the ability of the Company to access sufficient capital on favourable terms or at all, changes in national and local government legislation, taxation, controls, regulations, political or economic developments in Australia or other countries in which the Company does business or may carry on business in the future, operational or technical difficulties in connection with exploration or development activities, employee relations, the speculative nature of mineral exploration and development, obtaining necessary licenses and permits, diminishing quantities and grades of mineral reserves, contests over title to properties, especially title to undeveloped properties, the inherent risks involved in the exploration and development of mineral properties, the uncertainties involved in interpreting drill results and other geological data, environmental hazards, industrial accidents, unusual or unexpected formations, pressures, cave-ins and flooding, limitations of insurance coverage and the possibility of project cost overruns or unanticipated costs and expenses, and should be considered carefully. Many of these uncertainties and contingencies can affect the Company’s actual results and could cause actual results to differ materially from those expressed or implied in any forward-looking statements made by, or on behalf of, the Company. Prospective investors should not place undue reliance on any forward-looking information. Although the forward-looking information contained in this news release is based upon what management believes, or believed at the time, to be reasonable assumptions, the Company cannot assure prospective purchasers that actual results will be consistent with such forward-looking information, as there may be other factors that cause results not to be as anticipated, estimated or intended, and neither the Company nor any other person assumes responsibility for the accuracy and completeness of any such forward-looking information. The Company does not undertake, and assumes no obligation, to update or revise any such forward-looking statements or forward-looking information contained herein to reflect new events or circumstances, except as may be required by law. No stock exchange, regulation services provider, securities commission or other regulatory authority has approved or disapproved the information contained in this news release. COMPETENT PERSON STATEMENT The information in this report that relates to Exploration Targets, Exploration Results, Mineral Resources or Ore Reserves is based on information compiled by Dr Matthew Painter, a Competent Person who is a Member of the Australian Institute of Geoscientists. Dr Painter is the Managing Director and Chief Executive Officer of Kalgoorlie Gold Mining Limited (KalGold) and has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity being undertaken 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. Dr Painter consents to the inclusion in the report of the matters based on his information in the form and context in which it appears. Dr Painter holds securities in Kalgoorlie Gold Mining Limited. Page 6 RC drilling underwayatLighthorse EXPLORATION RESULTS The references in this announcement to Exploration Results were reported in accordance with Listing Rule 5.7 in the announcements titled: • Extensive gold targets generated from aircore drilling at LTZ Flexure, 5 October 2026 • RC program defines high-grades and new targets at Lighthorse, 2 September 2026 • Infill and extensional RC drilling intersects broad gold mineralisation at Kirgella Gift and Providence, 4 August 2026. • Kirgella Gift diamond drilling intersects thick gold mineralisation, confirms primary gold extends at depth, 13 February 2026 • New RC drilling extends primary gold at Lighthorse, 19 December 2025 • Sub-Audio Magnetics (SAM) geophysical data guides upcoming RC drill program at Pinjin. Diamond Drilling at Kirgella Gift and Providence to commence soon, 26 August 2025 • Lighthorse Strike Extended to 1,450m. Extensive RC Program Beginning Shortly, 15 July 2025 • SAM geophysical survey commencing around Lighthorse, and exploration update, 6 June 2025 • Farm-in at Pinjin Gold Project completed, 29 May 2025 • Lighthorse RC program confirms primary gold mineralisation at depth, follow up drilling imminent, 15 April 2025 • Aircore drilling to test Lighthorse strike extensions in April, 10 March 2025 • Multi-kilometre target areas along strike at KalGold’s Lighthorse discovery, 17 February 2025 • Lighthorse gold discovery follow-up RC drilling to commence first week of March, 13 February 2025 • ‘Lighthorse’ gold discovery at Pinjin: thick, high-grade gold intercepted at new greenfields find, 7 February 2025 • First-pass aircore drilling at Kirgella West: broad gold anomalism and mineralisation over 1,200m strike, 18 December 2024 • Providence: North plunging shallow gold mineralisation has significant potential, 7 December 2023 • Shallow, high-grade results extend Kirgella Gift and Providence corridor to over 1,150m of strike, 25 October 2023 • Thick, shear-hosted gold mineralisation intercepted at Kirgella Gift, 8 June 2023 • KalGold farms-in to Kirgella gold tenements and acquires Rebecca West tenure at Pinjin, 23 May 2023 The Company confirms that it is not aware of any new information or data that materially affects the information included in the previous market announcements noted above. MINERAL RESOURCE ESTIMATES The references in this announcement to Mineral Resource estimates were reported in accordance with Listing Rule 5.8 in the following announcements: • La Mascotte gold deposit: First JORC (2012) Mineral Resource of 138,000 oz Au, 7 March 2023. • First Kirgella Gift Inferred Resource of 76,400 oz from 3m, 5 July 2024. In accordance with ASX Listing Rule 5.23, the Company confirms that it is not aware of any new information or data that materially affects the information included in the previous market announcement noted above and that all material assumptions and technical parameters underpinning the Mineral Resource estimates in the previous market announcements continue to apply.