Announcement PDF ASX Announcement 11 September 2025 RC Drilling to Extend Wide Gold Zones at Laverton Underway Highlights • Reverse Circulation (RC) drill program targeting an identified halo area1 within the Laverton Project’s Exploration Licence (E38/3697) has commenced • The program will follow up significant gold intersections from previous AC and RC drilling, including: o 28m @ 1.09g/t Au from 57m, including 1m @ 9.69g/t Au (LVAC049)2 o 18m @ 1.16 g/t Au from 126m, including 5m @ 2.3 g/t Au (LVRC02)1 • Drilling will consist of 11 RC Holes ranging between 130-250m in depth, for a total program of approx. ~2000m o Proposed holes LVRC07 and LVRC20 extend to 250m to test the western ‘shoot’ (Figure 1). • The Laverton Project is strategically located within the Laverton district, near several world-class deposits of gold, nickel and rare earths, including Sunrise Dam, Wallaby, Granny Smith and the Mt Weld REE deposit (Figure 2) Catalina Resources Ltd (ASX: CTN) (‘Catalina’ or the ‘Company’) is pleased to advise that reverse circulation (RC) drilling has commenced at its Laverton Gold Project (E38/3697), with target areas seeking to extend wide gold zones recently defined within the halo area (Figure 3). The program will deliver a mix of infill and step-out holes designed to: • Refine high-grade gold zones previously intersected, including 28m @ 1.09g/t Au from 57m (incl. 1m @ 9.69g/t Au) and 18m @ 1.16g/t Au from 126m (incl. 5m @ 2.3g/t Au). • Test the strike and depth potential along the regionally significant Barnicoat Shear Zone (Figure 4). The halo area remains open in multiple directions, consistent with a large-scale mineralising system located in one of Australia’s most productive gold districts, alongside world-class deposits such as Sunrise Dam, Wallaby and Granny Smith. 1 See ASX Announcement Dated 31 July 2025: Catalina Intersects Wide Gold Zones in Maiden Drilling 2 See ASX Announcement Dated 8 January 2025: Gold and REE Intersections Upgraded at Laverton Catalina Resources Limited ACN 130 618 683 ASX: CTN T: 61 8 6165 8858 E: info@catalinaresources.com.au A : Level 2 / 7 Havelock Street West Perth WA 6005 Australia Page 1 of 6 catalinaresources.com.au Executive Director Ross Cotton commented: “This drill program is a critical step in advancing the Laverton Gold Project. By combining targeted infill with aggressive step-outs, we are defining the scale of the mineralised system that sits within one of Australia’s premier gold districts” The Company anticipates results to be available mid-October 2025 Figure 1 – Drilling cross section showing target zones Catalina Resources Limited ACN 130 618 683 ASX: CTN T: 61 8 6165 8858 E: info@catalinaresources.com.au A : Level 2 / 7 Havelock Street West Perth WA 6005 Australia Page 2 of 6 catalinaresources.com.au Figure 2 – Regional location diagram of the Laverton Gold Project and E38/3697 Catalina Resources Limited ACN 130 618 683 ASX: CTN T: 61 8 6165 8858 E: info@catalinaresources.com.au A : Level 2 / 7 Havelock Street West Perth WA 6005 Australia Page 3 of 6 catalinaresources.com.au Figure 3 – Plan of Halo Area Showing Previous Drill Intercepts, Gold Halo, and Planned RC Drill Program Figure 4 – The Barnicoat Shear Zone is a significantly mineralised structure with several significant gold deposits scattered along its length Catalina Resources Limited ACN 130 618 683 ASX: CTN T: 61 8 6165 8858 E: info@catalinaresources.com.au A : Level 2 / 7 Havelock Street West Perth WA 6005 Australia Page 4 of 6 catalinaresources.com.au This announcement has been authorised for release by the Executive Director. Contacts Investors / Shareholders Ross Cotton Executive Director T: +61 (0)8 6165 8858 References (ASX) This Report contains information extracted from ASX market announcements reported in accordance with the 2012 edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves” (“2012 JORC Code”). Further details (including 2012 JORC Code reporting tables where applicable) of exploration results referred to in this announcement can be found in the following announcements lodged on the ASX: 1 See ASX Announcement Dated 31 July 2025: Catalina Intersects Wide Gold Zones in Maiden Drilling 2 See ASX Announcement Dated 8 January 2025: June 2025: Gold and REE Intersections Upgraded at Laverton The Company confirms that it is not aware of any new information or data that materially affects the information in the original reports, and that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original reports. Competent Person Statement The review of historical exploration activities and results contained in this report is based on information compiled by Michael Busbridge, a Member of the Australian Institute of Geoscientists (AIG). He is a Consultant to Catalina Resources Ltd. He has sufficient experience which is relevant to the style of mineralisation and types of deposits 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 (the JORC Code). Michael Busbridge has consented to the inclusion in the report of the matters based on his information in the form and context in which it appears. Where the Company refers to the Mineral Resources in this report (referencing previous releases made to the ASX), it confirms that it is not aware of any new information or data that materially affects the information included in that announcement and all material assumptions and technical parameters underpinning the Mineral Resource estimate with that announcement continue to apply and have not materially changed. Catalina Resources Limited ACN 130 618 683 ASX: CTN T: 61 8 6165 8858 E: info@catalinaresources.com.au A : Level 2 / 7 Havelock Street West Perth WA 6005 Australia Page 5 of 6 catalinaresources.com.au Forward-Looking Statements This announcement contains forward-looking statements that are subject to a range of risks and uncertainties. These statements relate to the Company’s expectations, intentions, or strategies regarding the future. While the Company believes these statements to be reasonable at the time of release, actual events or results may differ materially from those anticipated. Readers are cautioned not to place undue reliance on forward-looking statements and should consider all relevant assumptions and risk factors as disclosed by the Company. ABOUT CATALINA RESOURCES LIMITED Catalina Resources Limited is an Australian diversified mineral exploration and mine development company whose vision is to create shareholder value through the successful exploration of prospective gold, base metal, lithium and iron ore projects and the development of these projects into production. Catalina Resources Limited ACN 130 618 683 ASX: CTN T: 61 8 6165 8858 E: info@catalinaresources.com.au A : Level 2 / 7 Havelock Street West Perth WA 6005 Australia Page 6 of 6 catalinaresources.com.au