Announcement PDF Jindalee Lithium Limited www.jindaleelithium.com ABN 52 064 121 133 E: enquiry@jindaleelithium.com Level 2, 9 Havelock Street, West Perth, WA, 6005 P: +61 9321 7550 PO Box 1033, West Perth, WA 6872 F: +61 9321 7950 JLL [xxx] Engage with this announcement at the Jindalee Investor Hub. Jindalee Lithium Limited (Jindalee, or the Company; ASX: JLL, OTCQX: JNDAF) is pleased to advise that its wholly owned US subsidiary, HiTech Minerals Inc. (HiTech), has received the required state-level permit from the Oregon Department of Geology and Mineral Industries (DOGAMI) for exploratory drilling at the McDermitt Lithium Project (McDermitt, Project). Drilling is planned under the Exploration Plan of Operations (EPO), approved by the US Bureau of Land Management (BLM) in December 20251,2. The EPO provides for a staged drilling program of up to 168 drill sites at McDermitt, of which Phase 1 will comprise up to 100 drill sites. With the DOGAMI permit now granted, all major approvals required to commence Phase 1 are in place, and HiTech has contracted Forged Drilling Corp. to begin drilling in September 2026, subject to the current high fire risk easing and issue of a fire waiver (Oregon is experiencing its worst wildfire season on record in 2026, with over 2 million acres burned and multiple large fires still active across the state3). Phase 1 comprises high-priority infill drilling (reverse circulation and core) targeting the central part of the deposit within the mine design outlined in the McDermitt Pre-Feasibility Study4. It is designed to upgrade resource confidence (currently Indicated and Inferred status4,5), provide fresh samples for geotechnical studies and metallurgical testwork, and collect environmental information, including hydrogeological data. Mobilisation planning by the Company’s US team is well progressed, with site preparation works expected to commence ahead of drilling. The team has also developed detailed risk management plans for the program, including staging water trucks on site to provide water for drilling and dust suppression and for emergency fire control. First results from the Phase 1 drilling program are expected in the December 2026 quarter. JNDAF 14 August 2026 Major Drilling Program expected to commence at McDermitt in September 2026 • All major approvals required for Phase 1 EPO drilling (up to 100drill sites) now in place, with driller contracted to commence in September 2026 (subject to fire risk easing) • Drilling program to be staged with Phase 1 to comprise infill drilling, completion of environmental and geotechnical holes Major Drilling Program to commence at McDermitt Jindalee Managing Director and CEO Ian Rodger commented: “We are delighted to have received the final permits for Phase 1 of the EPO drilling program at McDermitt and look forward to commencing the program next month, subject to receipt of the fire waiver. This work will provide critical data for the McDermitt Feasibility Study, including upgrading confidence levels of the mineral resources at McDermitt, providing samples for metallurgical testwork designed to improve processing efficiencies and acquiring the environmental and geotechnical data essential to Project planning.” Authorised for release by the Jindalee Board of Directors. For further information please contact: IAN RODGER LINDSAY DUDFIELD Managing Director & Chief Executive Officer Executive Director T: + 61 8 9321 7550 T: + 61 8 9321 7550 E: enquiry@jindaleelithium.com E: enquiry@jindaleelithium.com Reference 1. Jindalee Lithium ASX announcement 11/12/2025: “US Government Approves Major Drilling Program at McDermitt” 2. Jindalee Lithium ASX announcement 29/04/2026: “Exploration Plan of Operations Update” 3. Source: Big Grass fire now largest in state history, 35% contained - oregonlive.com 4. Jindalee Lithium ASX announcement 19/11/2024: “McDermitt Lithium Project Pre-Feasibility Study” 5. Jindalee Lithium ASX announcement 27/02/2023: “Resource at McDermitt increases to 21.5 Mt LCE” About Jindalee Jindalee Lithium Limited (Jindalee) is an Australian company focused on developing the McDermitt Lithium Project, one of the largest lithium resources in the US4. With 100% ownership and unencumbered offtake rights, Jindalee is strategically positioned to support America’s energy security and domestic supply of critical minerals. In 2024 the Company completed a Pre-Feasibility Study (PFS) confirming McDermitt’s scale, long-life, and low-cost production potential, with strong engagement from US government agencies, including the Department of Energy. As a deeply undervalued lithium (and potentially magnesium) developer, Jindalee presents a compelling investment opportunity heading into the next lithium market upcycle. Table 1 – 2023 McDermitt MRE5. Note: totals may vary due to rounding Cut-off Grade (ppm Li) Indicated Resource Inferred Resource Indicated and Inferred Resource Tonnage (Mt) Li Grade (ppm) LCE (Mt) Tonnage (Mt) Li Grade (ppm) LCE (Mt) Tonnage (Mt) Li Grade (ppm) LCE (Mt) 1,000 1,470 1,420 11.1 1,540 1,270 10.4 3,000 1340 21.5 Competent Persons Statement The Company confirms that it is not aware of any further new information or data that materially affects the information included in the original market announcements by Jindalee Lithium Limited referenced in this report and in the case of estimates of Mineral Resources, production targets and Ore Reserves, that all material assumptions and technical parameters underpinning the estimates in the relevant market announcements continue to apply and have not materially changed. To the extent disclosed above, the Company confirms that the form and context in which the Competent Pereson’s findings are presented have not been materially modified from the original market announcements. Forward-Looking Statements This document may contain certain forward-looking statements. Forward-looking statements include but are not limited to statements concerning Jindalee’s current expectations, estimates and projections about the industry in which Jindalee operates, and beliefs and assumptions regarding Jindalee’s future performance. When used in this document, the words such as “anticipate”, “could”, “plan”, “estimate”, “expects”, “seeks”, “intends”, “may”, “potential”, “should”, and similar expressions are forward-looking statements. Although Jindalee believes that its expectations reflected in these forward-looking statements are reasonable, such statements are subject to known and unknown risks, uncertainties and other factors, some of which are beyond the control of Jindalee and no assurance can be given that actual results will be consistent with these forward-looking statements.