Announcement PDF ASX ANNOUNCEMENT 22 April 2024 MARCH QUARTERLY ACTIVITIES REPORT Delta Lithium Limited (ASX: DLI) (“Delta” or the “Company”) is pleased to provide the following report on activities undertaken during the March Quarter, 2024. March Quarter Highlights • Binding Farm-In Joint Venture Agreements executed with Voltaic Strategic Resources (ASX: VSR) and Reach Resources Limited (ASX: RR1) to Earn-In ownership of tenement packages across the Yinnetharra region 1. o As a result of the transactions Delta’s footprint in the emerging Gascoyne lithium province has increased by more than 30% to 1,769km2. • Continued exploration success at Yinnetharra and Mt Ida with high-grade intercepts further building Delta’s confidence in the Company’s geological models 2. • Drilling results from the Yinnetharra Project demonstrated quality lithium intercepts from surface including: o o o • 30m @ 1.43% Li2O from 183m in YRRD0361 at M36 24.2m @ 1.4% Li2O from 177m in YDRD038 at M1 Infill gold drilling results from the Mt Ida Lithium Project delivered excellent high-grade near surface results including: o 3m @ 41g/t Au from 87m in MNGC087 at Meteor North o 15m @ 6.17g/t Au from 42m in MNGC154 at Meteor North o • 30m @ 1.9% Li2O from 199m in YRRD0362 at M36 2.4m @ 51.6g/t Au from 55.6m in AURD026 at Meteor North Heritage Survey Completed at the Jameson Prospect with drilling underway 3. Commenting on the quarter, Managing Director of Delta Lithium, Mr James Croser said: “The first quarter of 2024 has delivered ongoing solid results across our main project streams. Our confidence in the orebodies at Yinnetharra and Mt Ida continue to grow with each round of drilling results we receive. Delta’s presence in the Gascoyne region is rapidly growing and our recently established joint ventures with Voltaic Strategic Resources and Reach Resources supports our vision of systematically expanding our existing project tenure along and adjacent to our 40kms+ of target strike. "The newly acquired land package increases the likelihood of a regional scale project which all shareholders can benefit from and builds upon the significant potential for a long-life lithium operation. Delta’s experienced team and expertise, working closely with our new partners, will support the realisation of our strategy.” Refer ASX Announcement 11 March 2024 titled “Farm-In Joint Venture Agreements executed at Yinnetharra to grow prospective tenure” Refer ASX Announcement 15 February 2024 titled “Yinnetharra and Mt Ida Exploration Update” 3 Refer ASX Announcement 14 March 2024 titled “Yinnetharra Exploration Update” 1 2 1 ASX ANNOUNCEMENT 22 April 2024 YINNETHARRA LITHIUM PROJECT Delta signed binding agreements with both Voltaic Strategic Resources Ltd (ASX: VSR) and Reach Resources Limited (ASX: RR1) to Earn-In ownership of tenement packages in the rapidly growing Yinnetharra region. The Company released a maiden MRE in December 2023 of 25.7Mt @ 1% Li2O 4. The new land packages cover an additional 413km2 and are positioned adjacent to and along strike of the already defined resource at Malinda, within the 100% owned Yinnetharra Lithium Project. As part of the agreement, Delta paid ~$4.5 million up front with the right to earn-in up to 80% equity in each of the three projects. The projects included are Voltaic’s Ti Tree Project (243km2) which overlays extensive Leake Springs mafic-sediment package that hosts mineralised pegmatites at Delta’s Malinda Lithium deposit (25.7Mt @ 1.0% Li2O) and Reach Resources’ Morrissey Hill and Camel Hill (170km2) Projects, overlaying extensive Lithium prospective host stratigraphy and Lithium soil anomalies. Delta’s total tenure owned outright and as Farm-In Joint Ventures now amounts to 1,769km2. Each agreement has two stages that allow the Company to earn-in with various deferred spending commitments. Exploration and Resource Development The Company has focused its exploration efforts at its wholly owned Yinnetharra Project with four drill rigs operating at Malinda and multiple field teams completing extensive geological mapping and surface sampling across the tenement package. Wide spaced step out drilling has been utilised to define edges of the known pegmatites at Malinda. The pegmatite formation displays shallow dipping sheets within which thickened zones (up to 70m thick in places) contain spodumene that have a shallow easterly plunge, with emplacement and morphology of the pegmatites controlled by a series of structures and contacts between amphibolite and schist units. Delta’s team of expert geologists are highly supportive of the potential that the broader Yinnetharra region emerges as a new Western Australian lithium province. Drilling results from Malinda has demonstrated quality lithium intercepts from surface with the dominant lithium bearing mineral being spodumene. Lithium resources are largely present in 3 main pegmatites at Malinda from surface to a depth of >300m. Drilling highlights from the quarter can be seen in Table 1 below. HoleID 4 Table 1: Highlight of drilling results from Yinnetharra during the quarter From To Length Li2O pct Ta2O5 ppm Fe2O3 pct YRRD362 199 229 30 1.9 160 1.07 YRRD361 183 213 30 1.43 178 0.78 YDRD038 177 201 24 1.41 110 4.38 YRRD348 286 329 43 0.75 42 1.39 YRRD336 35 60 25 1.01 85 0.85 YDRD039 199 216 17 1.25 80 2.22 YRRD340 72 95 23 0.92 61 1.11 YRRD330 84 103 19 0.95 59 1.28 YRRD326 72 88 16 1.06 54 0.96 YRRD310 264 281 17 0.95 42 4.03 YRRD332 54 74 20 0.7 60 1.28 YRRD353 225 240 15 0.86 90 2.42 YRRD392 38 53 15 0.82 54 0.55 YRRD334 38 50 12 0.95 66 1.70 Refer ASX Announcement 27 December 2023 titled “Yinnetharra Lithium Project Maiden Mineral Resource Estimate” 2 ASX ANNOUNCEMENT 22 April 2024 Towards the end of the quarter, the exploration team began groundwork at the RR1 and VSR tenements that were recently acquired. Jameson Prospect Delta’s team from the Malinda camp methodically surveyed and mapped the Jameson Prospect during the quarter in preparation of the drilling campaign which started at the end of March. The team has successfully identified consistent high tenor lithium in soil anomalies with rock chips up to 4% Li2O and coarse spodumene within the outcropping pegmatites at surface. Figure 1: Plan showing Jameson Prospect with planned drilling locations Yinnetharra Project Development Environmental baseline studies are ongoing at Yinnetharra including flora and fauna, materials characterisation, surface and groundwater studies. These studies will be ongoing for the balance of CY2024 with a view to determining the permitting route by the end of CY2024 in collaboration with the relevant Government Agencies. Targeted geotechnical drilling in conjunction with the identification and acquisition of core for metallurgical variability testwork across the Malinda orebody will be incorporated into the drilling schedule for the next several quarters. Water exploration drilling will also be undertaken in the second half of CY2024. A scoping level study is underway at Yinnetharra based only on the maiden Mineral Resource Estimate at Malinda. The results of the Scoping Study are expected to be released in the September Quarter of 2024 and will articulate a project timeline to Final Investment Decision (FID) including Project Permitting. 3 ASX ANNOUNCEMENT 22 April 2024 MT IDA LITHIUM PROJECT Exploration and Resource Development Exploration activities undertaken during the quarter at Mt Ida were limited to the strategic reallocation of resources towards the significant exploration activities taking place at Yinnetharra, a major push towards completion of drill site rehabilitation and ‘bag farming’ of selective RC samples for warehousing on site. Infill drilling results identified an additional pegmatite within the Sister Sam area that is lithium mineralised from the surface and demonstrated thicker than anticipated pegmatite intercepts. Detailed compilation and interpretation of final assay results is ongoing. Infill gold drilling from Meteor North and Baldock 086 demonstrated excellent high grade near surface results. All outstanding drill results were received during the last quarter. HoleID SSRD058 Table 2: Significant Li intercepts from Mt Ida >0.5% Li2O From To Length Li2O % Ta2O5 ppm 575 602 27 1.6 95 Fe2O3 % 1.01 GCS0019 68 95 27 0.78 67 3.09 SPRD059 487 510 23 0.85 88 1.68 GCS0025 79 99 20 1.47 256 0.87 GCS0277 130 145 15 1.17 181 2.03 GCS0278 139 154 15 1.37 258 0.69 GCT273 103 118 15 1.35 167 1.07 GCT274 113 127 14 1.48 144 0.91 GCT278 111 125 14 1.39 168 0.86 GCS0260 1 14 13 0.7 81 0.82 GCS0281 134 147 13 0.76 265 0.84 GCS0133 115 127 12 1.02 209 1.56 GCS0276 127 139 12 1.18 199 1.56 GCS0280 128 139 11 0.6 280 0.57 GCS0287 122 133 11 1.39 292 1.08 GCS0288 126 137 11 1.54 292 0.95 SSRD058 622 632 10 1.54 168 0.97 GCS0283 124 134 10 1.53 240 0.74 GCS0282 141 150 9 1.63 268 0.87 GCS0284 130 139 9 1.48 279 0.69 Table 3: Significant Au intercepts from Mt Ida above 1g/t Au HoleID Au_gpt Cu_ppm AURD026 From 56 To 58 Length 2 51.63 9420 MNGC080 87 88 1 113.55 MNGC154 42 57 15 6.17 2097 GCT216 43 46 3 30.32 2857 MNGC088 84 87 3 13.86 313 GCS0118 153 156 3 13.6 1479 MNGC058 50 51 1 39.79 GCS0215 52 54 2 17.06 8100 4 ASX ANNOUNCEMENT 22 April 2024 HoleID Au_gpt Cu_ppm MNGC387 From 78 To 80 Length 2 14.74 2405 MNGC063 38 47 9 3.24 1001 GCS0315 118 126 8 3.64 318 MNGC069 55 59 4 6.71 2792 IDRD300 64 65.7 1.7 14.47 681 AURD022 46 47.4 1.4 17.87 1215 GCS0005 100 105 5 4.48 1217 GCS0118 147 148 1 22.21 GCS0281 164 167 3 6.35 3627 Mt Ida Project Development - Gold Delta is exploring opportunities to monetise the gold resource at Mt Ida. A study is underway which contemplates mining the gold resource only and preserving the lithium resource for a future investment decision. Preliminary discussions have commenced with third parties regarding processing options for treatment of the gold. The initial Sister Sam Open Pit (which has a published resource of 240kt @ 9g/t for 70koz) is fully permitted and shovel ready. Metallurgical test work was undertaken on the Sister Sam Open Pit gold lode (Baldock 086) and Geotechnical studies have been commissioned on all of the Mt Ida deposits. The Mining Proposal and Mine Closure Plan is currently being updated to include an additional two Open Pits and an Underground operation and this will be submitted to DEMIRS in the June Quarter of 2024. CORPORATE Cash and Cash Equivalents Cash at the end of the quarter was $100.2M. ASX Compliance For the purpose of Listing Rule 5.3.2, the Company confirms that there were no mining production and development activities during the quarter by the Company or its subsidiaries. In accordance with section 6 of the Appendix 5B, the Company advises that $185k was paid to related parties of the entity and their associates during the quarter, including Executive and Non-Executive Director fees. Release authorised by the Board of Delta Lithium Limited. For further information, please contact: Delta Lithium James Croser, Managing Director Peter Gilford, CFO & Company Secretary +61 8 6109 0104 info@deltalithium.com.au Investor/Media Enquiries Citadel-MAGNUS Michael Weir +61 402 347 032 5 ASX ANNOUNCEMENT 22 April 2024 About Delta Lithium Delta Lithium (ASX: DLI) is an exploration and development company focused on bringing high-quality, lithium-bearing pegmatite deposits, located in Western Australia, into production. With current global JORC compliant resources of 40.4Mt@1.1%Li2O, strong balance sheet and an experienced team driving the exploration and development workstreams, Delta Lithium is rapidly advancing its Lithium Projects. The Mt Ida Lithium Project holds a critical advantage over other lithium developers with existing Mining Leases and an approved Mining Proposal. Delta Lithium is pursuing a development pathway to unlock maximum value for shareholders. Delta Lithium also holds the highly prospective Yinnetharra Lithium Project that is already showing signs of becoming one of Australia’s most exciting lithium regions. The Company is currently conducting exploration activities at Yinnetharra and an extensive multi-rig campaign will be ongoing throughout 2024 to test additional targets and build on the Maiden Resource released in December 2023. Competent Person's Statement Information in this Announcement that relates to exploration results is based upon work undertaken by Mr. Charles Hughes, a Competent Person who is a Member of the Australasian Institute of Mining and Metallurgy (AUSIMM). Mr. Hughes has sufficient experience that 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’ (JORC Code). Mr. Hughes is an employee of Delta Lithium Limited and consents to the inclusion in this announcement of the matters based on his information in the form and context in which it appears. Refer to www.deltalithium.com.au for past ASX announcements. Past Exploration results and Mineral Resource Estimates reported in this announcement have been previously prepared and disclosed by Delta Lithium in accordance with JORC 2012. The Company confirms that it is not aware of any new information or data that materially affects the information included in these market announcements. The Company confirms that the form and content in which the Competent Person's findings are presented here have not been materially modified from the original market announcement, and all material assumptions and technical parameters underpinning Mineral Resource Estimates in the relevant market announcement continue to apply and have not materially changed. Refer to www.deltalithium.com.au for details on past exploration results and Mineral Resource Estimates. Disclaimer This release may include forward-looking and aspirational statements. These statements are based on Delta Lithium management’s expectations and beliefs concerning future events as of the time of the release of this announcement. Forward-looking and aspirational statements are necessarily subject to risks, uncertainties and other factors, some of which are outside the control of Delta Lithium, which could cause actual results to differ materially from such statements. Delta Lithium makes no undertaking to subsequently update or revise the forward looking or aspirational statements made in this release to reflect events or circumstances after the date of this release, except as required by applicable laws and the ASX Listing 6 ASX ANNOUNCEMENT 22 April 2024 JORC Tables Table 4: Global Lithium Mineral Resource Estimate Summary Table Delta Lithium Group Mineral Resource estimate Cut-off Resource category Mt Ida Ta2O5 grade Tonnes Grade Li2O Grade (Li2O%) (Mt) (% Li2O) (Kt) (Ta2O5 ppm) - - - - 6.7 1.0 65 51 19.0 1.0 181 67 Total Resource 25.7 1.0 246 62 Measured - - - - 7.8 1.3 104 224 6.8 1.1 76 154 14.6 1.2 180 191 Total Measured - - - - Total Indicated 14.5 1.2 169 144 Total Inferred 25.8 1.0 257 90 Total 40.4 1.1 426 109 Measured Yinnetharra Li2O Indicated Inferred Indicated Inferred 0.5 0.5 Total Resource Notes: Tonnages and grades have been rounded to reflect the relative uncertainty of the estimate. Inconsistencies in the totals are due to rounding. Table 5: Mt Ida Lithium Project; global gold Mineral Resource Cut-off Prospect Classification Tonnes Grade Metal Mt Au g/t Au koz Indicated 1.12 5.7 206 Inferred 1.97 3.2 206 Total 3.10 4.1 412 Au g/t 0.5 Open Pit 1.5 Underground Combined Notes: Tonnages and grades have been rounded to reflect the relative uncertainty of the estimate. Inconsistencies in the totals are due to rounding. 7 ASX ANNOUNCEMENT 22 April 2024 Appendix 1 – Tenement Listing Project Location Tenement Status Interest at start of Quarter Eureka Western Australia L24/0234 Granted 100% 100% Eureka Western Australia M24/0189 Granted 100% 100% Eureka Western Australia M24/0584 Granted 100% 100% Eureka Western Australia M24/0585 Granted 100% 100% Eureka Western Australia M24/0586 Granted 100% 100% Eureka Western Australia P24/5116 Granted 100% 100% Eureka Western Australia P24/5548 Granted 100% 100% Eureka Western Australia P24/5549 Granted 100% 100% Mt Ida Western Australia E29/0640 Granted 100% 100% Mt Ida Western Australia E29/0771 Granted 100% 100% Mt Ida Western Australia E29/0895 Granted 100% 100% Mt Ida Western Australia E29/0944 Granted 100% 100% Mt Ida Western Australia E29/0964 Granted 100% 100% Mt Ida Western Australia E29/1238 Granted 100% 100% Mt Ida Western Australia E29/1239 Granted 100% 100% Mt Ida Western Australia E29/1240 Granted 100% 100% Mt Ida Western Australia E29/1262 Application 0% 100% Mt Ida Western Australia M29/0002 Granted 100% 100% Mt Ida Western Australia M29/0094 Granted 100% 100% Mt Ida Western Australia M29/0165 Granted 100% 100% Mt Ida Western Australia M29/0422 Granted 100% 100% Mt Ida Western Australia M29/0429 Granted 100% 100% Mt Ida Western Australia M29/0444 Granted 100% 100% Mt Ida Western Australia P29/2394 Granted 100% 0% Mt Ida Western Australia P29/2397 Granted 100% 100% Mt Ida Western Australia P29/2398 Granted 100% 100% Mt Ida Western Australia P29/2399 Granted 100% 100% Mt Ida Western Australia P29/2400 Granted 100% 100% Mt Ida Western Australia P29/2401 Granted 100% 100% Mt Ida Western Australia P29/2402 Granted 100% 100% Mt Ida Western Australia P29/2403 Granted 100% 100% Mt Ida Western Australia P29/2404 Granted 100% 100% Mt Ida Western Australia P29/2405 Granted 100% 100% Mt Ida Western Australia P29/2406 Granted 100% 100% Mt Ida Western Australia P29/2407 Granted 100% 100% Mt Ida Western Australia P29/2529 Granted 100% 0% Interest at end of Quarter 8 ASX ANNOUNCEMENT 22 April 2024 Project Location Tenement Status Interest at start of Quarter Mt Ida Western Australia P29/2666 Granted 100% 100% Mt Ida Western Australia P29/2667 Granted 100% 100% Mt Ida Western Australia P29/2668 Granted 100% 100% Mt Ida Western Australia P29/2669 Granted 100% 100% Mt Ida Western Australia L29/166 Granted 100% 100% Mt Ida Western Australia L29/171 Granted 100% 100% Mt Ida Western Australia L29/186 Application 0% 100% Mt Ida** Western Australia L29/174 Granted 100% 100% Mt Ida** Western Australia L29/175 Granted 100% 100% Mt Ida** Western Australia L29/176 Granted 100% 100% Mt Ida** Western Australia L29/177 Granted 100% 100% Mt Ida** Western Australia L30/094 Granted 100% 100% Yinnetharra Western Australia E09/2169 Granted 100% 100% Yinnetharra Western Australia E09/2170 Granted 100% 100% Yinnetharra Western Australia E09/2283 Granted 100% 100% Yinnetharra Western Australia E09/2545 Granted 100% 100% Yinnetharra Western Australia E09/2621 Granted 100% 100% Yinnetharra Western Australia E09/2705 Application 100% 100% Yinnetharra Western Australia E09/2716 Application 100% 100% Yinnetharra Western Australia E09/2772 Application 100% 100% Yinnetharra Western Australia E09/2806* Application 100% 100% Yinnetharra Western Australia E09/2808* Application 100% 100% Yinnetharra Western Australia E09/2814 Application 100% 100% Lyons River Western Australia E09/18241 Granted 100% 100% Western Australia E09/18251 Granted 100% 100% Lyons River Western Australia E09/20981 Granted 100% 100% Lyons River Western Australia E09/21021 Granted 100% 100% Lyons River Western Australia E09/23041 Granted 100% 100% Western Australia E09/23051 Granted 100% 100% Lyons River Western Australia E09/23121 Granted 100% 100% Lyons River Western Australia E09/27131 Granted 100% 100% Camel Hill2 Western Australia E09/23542 Granted 0% 0% Lyons River Lyons River Camel Hill2 Interest at end of Quarter Western Australia E09/23882 Granted 0% 0% Morrissey Hill2 Western Australia E09/23752 Granted 0% 0% Morrissey Hill2 Western Australia M09/1012 Granted 0% 0% Morrissey Hill2 Western Australia E09/28052* Application 0% 0% Western Australia E09/28062* Application 0% 0% Western Australia E09/28972* Application 0% 0% Morrissey Hill2 Morrissey Hill2 9 ASX ANNOUNCEMENT 22 April 2024 Project Location Tenement Status Morrissey Hill2 Interest at start of Quarter Western Australia E09/29022* Application 0% 0% Morrissey Hill2 Western Australia E09/29062* Application 0% 0% Morrissey Hill2 Western Australia E09/29092* Application 0% 0% Ti-Tree Project3 Interest at end of Quarter Western Australia E09/25033 Granted 0% 0% Ti-Tree Project3 Western Australia E09/24703 Application 0% 0% Ti-Tree Project3 Western Australia E09/25223 Application 0% 0% Ti-Tree Project3 Western Australia E09/29353 Application 0% 0% Ti-Tree Project3 Western Australia E09/28873* Application 0% 0% Ti-Tree Project3 Western Australia E09/28923* Application 0% 0% Ti-Tree Project3 Western Australia E09/28983* Application 0% 0% Ti-Tree Project3 Western Australia E09/29033* Application 0% 0% Western Australia E09/29073* Application 0% 0% Ti-Tree Project3 *Application remains in ballot **Miscellaneous Licences are for the purpose for groundwater search only 1 100% LCT (lithium-caesium-tantalum) Mineral Rights only within Dalaroo Metals Ltd Lyons River Project 2 Earn-In & JV Agreement with Reach Resources Limited for Camel Hill & Morrissey Hill Projects 3 Earn-In & JV Agreement with Voltaic Strategic Resources Limited for Ti-Tree Lithium Project 10