Announcement PDF Litchfield Minerals Limited · www.litchfieldminerals.com.au Page 1 of 3 A S X A N N O U N C E M E N T 12 October 2026 DRILLING COMMENCES AT OONAGALABI COPPER-ZINC PROJECT H I G H L I G H T S ▪ Drilling has commenced at the Company’s flagship Oonagalabi Copper-Zinc Project in the Northern Territory. ▪ 7–11 drill holes are planned, with the final number dependent on drilling progress, ground conditions and available campaign time. ▪ Our programme is designed to systematically test priority geological targets and further evaluate the extent and continuity of copper-zinc mineralisation. ▪ Results will assist in refining the Company’s geological model and identifying opportunities for follow-up drilling. DRILLING UNDERWAY AT OONAGALABI Litchfield Minerals Limited (ASX: LMS) (“Litchfield” or “the Company”) is pleased to announce the commencement of its latest drilling campaign at the Oonagalabi Copper-Zinc Project, located in the Harts Range region of the Northern Territory (Figure 1). The programme is expected to comprise approximately 7 to 11 drill holes, with the final number of holes determined by drilling productivity, ground conditions and the time available during the current campaign.1 Drilling will focus on priority targets identified through the Company’s ongoing geological interpretation and exploration activities, with the objective of advancing its understanding of the mineralised system and testing opportunities for extensions to known copper-zinc mineralisation. The programme represents another important step in Litchfield’s systematic evaluation of Oonagalabi and its potential to host a significant copper-zinc mineral system. The Company will continue to assess geological observations throughout the campaign, allowing drill priorities to be refined as new information becomes available. 1 Refer ASX Announcement – 24 September 2026 - LMS Secures Rig to Start October Drilling at Oonagalabi Litchfield Minerals Limited · www.litchfieldminerals.com.au Page 2 of 3 Figure 1. Drilling underway at the Oonagalabi Copper-Zinc Project, Harts Range, Northern Territory. MANAGING DIRECTOR’SCOMMENTARY Litchfield Minerals Managing Director Matthew Pustahya commented: “We are pleased to have drilling underway again at Oonagalabi as we continue working towards unlocking the potential of this copper-zinc system. “Our geological understanding of the project continues to evolve, and this programme provides another opportunity to test priority targets and build on the exploration work completed to date. “We are targeting between seven and eleven holes during this campaign, depending on drilling conditions and available time, and will remain flexible in how we allocate drilling metres to maximise the geological information obtained. “Oonagalabi remains an important part of our exploration portfolio, and we look forward to updating shareholders as the programme progresses.” The Company will provide further updates as material results become available. ENDS AUTHORISATION This announcement has been authorised for release by the Board of Directors of Litchfield Minerals Limited. Litchfield Minerals Limited · www.litchfieldminerals.com.au Page 3 of 3 ABOUT LITCHFIELD MINERALS Litchfield Minerals Limited (ASX: LMS) is an Australian mineral exploration company advancing a belt- scale Cu-Ni-PGE thesis across the Harts Range / Oonagalabi corridor at the Aileron-Irindina boundary in the Northern Territory. The company is a pioneering copper exploration company with disciplined, evidence-led exploration and a modern technical and digital operating model, working to define and de- risk mineral systems a major can partner with confidence. Follow us on: www.litchfieldminerals.com.au https://twitter.com/Litchfield_LMS https://www.linkedin.com/company/litchfield-minerals-limited/ FORWARD LOOKING STATEMENTS This announcement may contain forward-looking statements that are subject to risks, uncertainties and other factors. Forward-looking statements include those that are predictive in nature, depend on or refer to future events or conditions, or include words such as may, will, expect, intend, plan, estimate, anticipate, believe, continue, target or similar expressions. Such statements are based on assumptions and judgements held by the company as at the date of this announcement and are not guarantees of future performance. Actual results may differ materially from those expressed or implied. Litchfield Minerals Limited does not undertake to update any forward-looking statement, whether as a result of new information, future events or otherwise, except as required by law or the ASX Listing Rules. FOR FURTHER INFORMATION Matthew Pustahya | Managing Director Litchfield Minerals Limited matthew@litchfieldminerals.com.au www.litchfieldminerals.com.au