Announcement PDF RNS Number : 3941G East Star Resources PLC 28 April 2025 28 April 2025 East Star Resources Plc ("East Star" or the "Company") Outstanding Historical Polymetallic Drill Results at Rulikha Deposit Priority 2025 drill target shown to have thick, high-grade intervals proximal to geophysical anomalies East Star Resources Plc (LSE:EST), which is exploring for copper and gold in Kazakhstan, is pleased to announce that it has begun the digitisation process of historical data from theRulikha Deposit, reported as 14.3Mt @ 1.2% Cu, 3.5% Zn, 0.28 g/t Au, and 13.5 g/t Ag. The historical reports demonstrate outstanding grades, including an 81.2m ore grade interval, within East Star's currently awarded licence area and proximal to a distinct electromagnetic anomaly and three Induced Polarisation ("IP") anomalies to the north and northeast of these intersections. Highlights: · DH_353 64.3m @ 2.7% Cu from 22.9m and 16.9m @ 1.25% Cu from 87.2m (for an 81.2m interval) · DH_356 12.1m @ 12.1m at 10.5% Zn and 4.9% Cu, 0.44g/t Au and 17.2g/t Ag from 34.3m · DH_319 12.3m @ 6.1% Zn and 0.4% Cu from 112.1m · DH_34A 7.0m @ 6.1% Zn from 475.8m Alex Walker, East Star CEO, commented: "These outstanding results showing thick, high-grade intervals, bode well for these high impact Rulikha targets and I am very much looking forward to getting the drill rig turning on these targets this summer. Our team's incredible efforts over the winter break, finding and digitising this historical data to prepare for our 2025 geophysics and drilling programme, has been remarkable. We have also developed an exceptional relationship with the District of Shemonaikha, the municipality where Rulikha and Verkhuba are situated, over the last four years and are very excited to continue to grow that relationship and find more resources to prolong the regional mining operations which have been going since 1749. I could not be prouder of our team and more excited about the opportunities in front of us in 2025 and the geological opportunities like this which Kazakhstan has to offer." Figure1Location of drill holes on East Star's awarded exploration licence showing the IP and EM anomalies Notwithstanding the potentially economic nature of these drill results, the geological knowledge gained from the digitisation process continues to reinforce the geophysical anomalies, discussed in the announcement dated 24 April 2025. An infill IP survey is currently underway over these target areas with the Talovskoye survey complete and initial interpretation underway, and the survey over the eastern extension of the Rulikha prospect expected to finish by next week. The results of these surveys will inform the priority of the drilling programme in 2025 and East Star plans to drill test these geophysical anomalies this year. Once the IP programme in the East Region is completed, the contractors will relocate to the Snowy epithermal gold anomaly to complete 4 x 1.6km IP lines at 200m spacing over the main pyrophyllite alteration and gold and silver anomaly to test for chargeability and resistivity anomalies resembling an epithermal sulphide gold target or porphyry system. Further Information History of the Rulikha Deposit The Rulikha Depositand geophysical targets are situated about 33km northwest from East Star's 100% owned Verkhuba Deposit (JORC MRE of 20.3Mt @ 1.16% copper, 1.54% zinc and 0.27% lead).Located within the Rulikhinsko-Vydrikhinskoe ore field in the Shemonaikha district of East Kazakhstan, is a volcanogenic massive sulfide (VMS) polymetallic deposit primarily explored for zinc, copper and lead. The deposit was part of a broader geological exploration effort in the region, conducted by the East Kazakhstan Geological Exploration Expedition under the Ministry of Geology of the USSR and later the Republic of Kazakhstan. Exploration of the Rulikha Deposit began in the mid-20th century, with significant archival references to work conducted from the 1940s to the 1980s, followed by detailed prospecting from 1989-1992: · 1940 - 1950s: Early prospecting by the Shemonaikha Party of the Altai identified polymetallic mineralisation. A consolidated report in 1957 (Utrobin et al.) calculated reserves for the Rulikhinskoye (Rulikha) deposit. · 1960s-1970s: Geological and geophysical work by the Shemonaikha Geological Reconnaissance Party (GRP) and Priirtyshskaya Party refined the geological structure and mineral potential. The 1979 report by Abdulmenov and Golubtsov focused on the Buzanikhinsky area, adjacent to Rulikha. · 1978-1983: Detailed prospecting by the Minsk and Ubin GRPs of the Shemonaikha GRE targeted the Rulikhinsko-Vydrikhinsky and Talovsko-Rulevsky areas, further delineating mineralisation. · 1989-1992: The focus of the provided report, conducted under Geological Task No. 1, involved deep drilling to assess the ore-bearing potential of deep horizons (up to 1000-1200 m). Work was halted in January 1991 due to overlapping exploration by the Altai Geological-Geophysical Expedition but resumed for report preparation in 1992. The 1989-1992 exploration programme included significant drilling and sampling efforts: · Total Drilling - 6,785 linear metres of core drilling across 12 exploration boreholes. Drilling grid for Rulikha Deposit: 200 x 100 m for C2 category resources (GKZ resource categorisation not typically used in modern resource estimates), 400 x 100 m or 300 x 200 m for P1 category. · Geochemical Sampling - 737 geochemical samples collected. · Core Sampling - 16 core samples analysed. · Geophysical Logging: - 6,607 linear metres of gamma logging. The results of the historical exploration found that the Rulikha Deposit hosts VMS-polymetallic mineralisation, primarily copper, zinc and lead, with some gold and silver. Mineralisation is localised in tuffs, volcanic sediments and extrusive units from the Middle-Upper Devonian boundary. Mineralisation is associated with vein-type and stratiform ores. Metallurgical or processing test work for the Rulikha Deposit has not been completed to date. East Star Resources Plc Alex Walker, Chief Executive Officer Tel: +44 (0)20 7390 0234 (via Vigo Consulting) SI Capital (Corporate Broker) Nick Emerson Tel: +44 (0)1483 413 500 Vigo Consulting (Investor Relations) Ben Simons / Peter Jacob Tel: +44 (0)20 7390 0234 About East Star Resources Plc East Star Resources is focused on the discovery and development of copper and gold in Kazakhstan. East Star's management are based permanently on the ground, supported by local expertise. The Company is pursuing three exploration strategies: · A Volcanogenic Massive Sulphide (VMS) discovery with a maiden JORC MRE of 20.3Mt @ 1.16% copper, 1.54% zinc and 0.27% lead, in an infrastructure-rich region, amenable to a low capex development · Copper porphyry and epithermal gold exploration, with multiple opportunities for Tier 1 deposits, initially supported by an initial US$500k grant from BHP Xplor in 2024. · Sediment-hosted copper exploration with Getech where the initial targeting strategy is at no cost to East Star. Visit our website: www.eaststarplc.com Follow us on social media: LinkedIn: https://www.linkedin.com/company/east-star-resources/ X (formerly Twitter): https://twitter.com/EastStar_PLC Subscribe to our email alert service to be notified whenever East Star releases news: www.eaststarplc.com/newsalerts The person who arranged for the release of this announcement was Alex Walker, CEO of the Company. Competent Person Statement Scientific or technical information in this disclosure related to exploration was reviewed by Dr Tremain Woods, a full-time employee of Discovery Ventures Kazakhstan Ltd, a 100% owned subsidiary of East Star Resources PLC. Dr Woods is a member in good standing with the Geological Society of South Africa. He has sufficient experience that is relevant to the commodity, style of mineralisation or type of deposit under consideration and activity which he is undertaking to qualify as a Competent Person under the JORC code (2012 Edition). Table 1 Historic Drill Results Hole ID Year Azimuth DH_101 1983 86 DH_101 1983 DH_101 1983 DH_101 Dip Depth (m) Z From (m) To (m) Thickness (m) Cu (% X Y -89 569205.1 5594002 450 470.9 92.7 93.7 1 86 -89 569205.1 5594002 450 470.9 137.5 139.5 2 86 -89 569205.1 5594002 450 470.9 141.5 146.5 5 1983 86 -89 569205.1 5594002 450 470.9 156.5 166.5 10 DH_101 1983 86 -89 569205.1 5594002 450 470.9 170.5 174.5 4 DH_101 1983 86 -89 569205.1 5594002 450 470.9 176.5 182.5 6 DH_101 1983 86 -89 569205.1 5594002 450 470.9 215.4 221.4 6 DH_101 1983 86 -89 569205.1 5594002 450 470.9 225.4 238.4 13 DH_101 1983 86 -89 569205.1 5594002 450 470.9 239.4 241.4 2 DH_101 1983 86 -89 569205.1 5594002 450 470.9 245.4 247.4 2 DH_270 1983 38 -87 568773.6 5593831 355 604 107.2 107.8 0.6 DH_270 1983 38 -87 568773.6 5593831 355 604 132.5 133.2 0.7 DH_270 1983 38 -87 568773.6 5593831 355 604 135.6 137.3 1.7 DH_270 DH_271 (20/78) DH_271 (20/78) DH_271 (20/78) 1983 38 -87 568773.6 5593831 355 604 139.3 147.8 8.5 1983 254 -90 569119.2 5593696 450 1048 168 174 6 1983 254 -90 569119.2 5593696 450 1048 273.3 277 3.7 1983 254 -90 569119.2 5593696 450 1048 288.7 289.7 1 DH_292 1983 339 -86 568445.2 5594497 359 858 582 602 20 DH_2A 1992 217 -77 571420.2 5596046 490 422 145 155 10 DH_2A 1992 217 -77 571420.2 5596046 490 422 205 225 20 DH_2A 1992 217 -77 571420.2 5596046 490 422 255 275 20 DH_2A 1992 217 -77 571420.2 5596046 490 422 378 380 2 DH_303 1992 60 -87 570023.1 5595124 419 508 296.5 304.6 8.1 DH_310 1992 68 -86 570484.8 5592706 359 545.1 427.3 431 3.7 DH_318 1992 44 -87 571316.9 5593147 374 562 468.3 470.8 2.5 DH_318 1992 44 -87 571316.9 5593147 374 562 470.8 472 1.2 DH_319 1992 31 -86 569710.5 5593690 364 274 112.1 124.4 12.3 DH_319 1992 31 -86 569710.5 5593690 364 274 128.8 131.1 2.3 DH_319 1992 31 -86 569710.5 5593690 364 274 211 211.7 0.7 DH_322 1992 155 -90 569735.6 5594953 403 591 6 15 9 DH_322 1992 155 -90 569735.6 5594953 403 591 135 139 4 DH_322 1992 155 -90 569735.6 5594953 403 591 176 186 10 DH_322 1992 155 -90 569735.6 5594953 403 591 253 263 10 DH_322 1992 155 -90 569735.6 5594953 403 591 282 292 10 DH_322 1992 155 -90 569735.6 5594953 403 591 417 421 4 DH_322 1992 155 -90 569735.6 5594953 403 591 498 505 7 DH_323 1992 149 -89 566533.5 5596287 402 709 296.5 304.6 8.1 DH_323 1992 149 -89 566533.5 5596287 402 709 395 399 4 DH_332 1992 61 -88 569633.7 5593579 353 625 204 207 3 DH_332 1992 61 -88 569633.7 5593579 353 625 215 216 1 DH_332 1992 61 -88 569633.7 5593579 353 625 223 224 1 DH_332 1992 61 -88 569633.7 5593579 353 625 224 225 1 DH_332 1992 61 -88 569633.7 5593579 353 625 230 231 1 DH_332 1992 61 -88 569633.7 5593579 353 625 231 245 14 DH_332 1992 61 -88 569633.7 5593579 353 625 255 257 2 DH_332 1992 61 -88 569633.7 5593579 353 625 257 259 2 DH_332 1992 61 -88 569633.7 5593579 353 625 259 261 2 DH_332 1992 61 -88 569633.7 5593579 353 625 267 271 4 DH_332 1992 61 -88 569633.7 5593579 353 625 271 273 2 DH_332 1992 61 -88 569633.7 5593579 353 625 273 275 2 DH_332 1992 61 -88 569633.7 5593579 353 625 287 289 2 DH_332 1992 61 -88 569633.7 5593579 353 625 291 299 8 DH_332 1992 61 -88 569633.7 5593579 353 625 299 312 13 DH_332 1992 61 -88 569633.7 5593579 353 625 399 400 1 DH_332 1992 61 -88 569633.7 5593579 353 625 420.8 422.8 2 DH_332 1992 61 -88 569633.7 5593579 353 625 444.5 446.5 2 DH_332 1992 61 -88 569633.7 5593579 353 625 446.5 448.5 2 DH_333 1992 57 -86 571285.2 5595927 497 450 128.5 129.5 1 DH_333 1992 57 -86 571285.2 5595927 497 450 155 156 1 DH_333 1992 57 -86 571285.2 5595927 497 450 269 270 1 DH_334 1992 48 -83 571095.4 5595475 480 452 436 438.5 2.5 DH_34 1992 36 -90 568753 5594451 389 291.8 175.9 177.9 2 DH_34 1992 36 -90 568753 5594451 389 291.8 177.9 179.9 2 DH_340 1992 24 -88 570670 5592620 355 617.2 605.2 606.4 1.2 DH_342 1992 36 -86 570936.3 5595156 494 700 418 418.25 0.3 DH_342 DH_343 (8/81) DH_343 (8/81) DH_343 (8/81) 1992 36 -86 570936.3 5595156 494 700 475.25 476 0.75 1983 21 -90 569228.3 5594333 450 723 292.6 294.6 2 1983 21 -90 569228.3 5594333 450 723 300.6 302 1.4 1983 21 -90 569228.3 5594333 450 723 371.3 373 1.7 DH_345 1992 347 -78 570918.8 5596065 456 628 170 172.5 2.5 DH_34A 1992 55 -89 570304.9 5592789 357 678 349 349.4 0.4 DH_34A 1992 55 -89 570304.9 5592789 357 678 394 395.3 1.3 DH_34A 1992 55 -89 570304.9 5592789 357 678 460 465 5 DH_34A 1992 55 -89 570304.9 5592789 357 678 465 467.4 2.4 DH_34A 1992 55 -89 570304.9 5592789 357 678 467.4 475.8 8.4 DH_34A 1992 55 -89 570304.9 5592789 357 678 475.8 482.8 7 DH_353 1992 72 -89 569595.2 5593935 373 127 22.9 87.2 64.3 DH_353 1992 72 -89 569595.2 5593935 373 127 87.2 104.1 16.9 DH_356 1992 53 -88 569536 5593888 366 140 34.3 46.4 12.1 DH_357 1992 64 -89 569681 5593966 376 266 163.7 164.5 0.8 DH_357 1992 64 -89 569681 5593966 376 266 164.5 166.8 2.3 DH_357 1992 64 -89 569681 5593966 376 266 234 235.6 1.6 DH_357 1992 64 -89 569681 5593966 376 266 239 241 2 DH_357 1992 64 -89 569681 5593966 376 266 253.6 255.6 2 DH_35A 1992 18 -83 570285.7 5592508 384 865 426 428 2 DH_35A 1992 18 -83 570285.7 5592508 384 865 461 463 2 DH_366 1992 43 -78 569657.5 5593146 583 526.7 265.6 266.6 1 DH_366 1992 43 -78 569657.5 5593146 583 526.7 266.6 275 8.4 DH_366 1992 43 -78 569657.5 5593146 583 526.7 302.4 303.7 1.3 DH_368 1992 45 -90 569211.9 5594176 363 485 249.5 250.5 1 DH_369 1992 54 -79 569394.4 5594327 365 490.4 359.5 360.1 0.6 DH_370 1992 54 -87 569714.4 5593241 580 400 240.4 247.9 7.5 DH_374 1992 36 -88 569094.1 5593910 369 682 597.7 599.7 2 DH_374 1992 36 -88 569094.1 5593910 369 682 606 610.2 4.2 DH_375 1992 36 -90 569010.8 5594089 383 207.9 26.3 29 2.7 DH_375 1992 36 -90 569010.8 5594089 383 207.9 29 32.8 3.8 DH_375 1992 36 -90 569010.8 5594089 383 207.9 116 118.5 2.5 DH_375 1992 36 -90 569010.8 5594089 383 207.9 118.5 120 1.5 DH_376 1992 36 -89 568904.9 5593999 371 520 170.8 172.8 2 DH_378 1992 35 -84 568627.1 5594255 400 705 552.7 558.1 5.4 DH_380 1992 36 -89 568812.3 5593901 359 414 41.5 42.5 1 DH_380 1992 36 -89 568812.3 5593901 359 414 61.5 62 0.5 DH_380 1992 36 -89 568812.3 5593901 359 414 62 64 2 DH_380 1992 36 -89 568812.3 5593901 359 414 147 148 1 0 DH_381 1992 19 -90 569074.3 5593787 372 636 44.3 46.2 1.9 DH_381 1992 19 -90 569074.3 5593787 372 636 46.2 50.6 4.4 DH_3A 1992 251 -82 571270.1 5596083 500 405 8 45 37 DH_3A 1992 251 -82 571270.1 5596083 500 405 70 78 8 DH_3A 1992 251 -82 571270.1 5596083 500 405 152 156 4 DH_3A 1992 251 -82 571270.1 5596083 500 405 226 234 8 DH_6 1992 107 -75 571102 5596106 539 62.1 0 13 13 DH_6 1992 107 -75 571102 5596106 539 62.1 30.6 34.75 4.15 DH_76 1983 249 -89 569239.5 5594460 450 416.7 275.15 276.35 1.5 DH_76 1983 249 -89 569239.5 5594460 450 416.7 397 398 1 DH_8 1949 112 -72 571224 5595871 496 218.21 19.5 20.1 0.6 DH_8 1949 112 -72 571224 5595871 496 218.21 158.73 160 1.27 DH_8 1949 112 -72 571224 5595871 496 218.21 161.63 162.93 1.3 DH_8 1949 112 -72 571224 5595871 496 218.21 168.88 169.38 0.5 DH_8 1949 112 -72 571224 5595871 496 218.21 169.38 169.48 0.1 Table 2 - JORC Code, 2012 Edition Section 1 Sampling Techniques and Data Criteria JORC Code explanation Sampling techniques · Nature and quality of sampling (e.g. cut channels, random chips, or specific specialised industry standard measurement tools appropriate to the minerals under investigation, such as down hole gamma sondes, or handheld XRF instruments, etc). These examples should not be taken as limiting the broad meaning of sampling. · Include reference to measures taken to ensure sample representivity and the appropriate calibration of any measurement tools or systems used. Commentary · Samples were taken from diamond drill core through su intervals. · Sampling intervals ranged from 0.1 m to over 1.0m · Sample quality was ensured by a GKZ standard calculat spectral analyses were representative · A total of 599 meters of core was sampled for the Rulikh · Core samples were prepared by the geological expeditio crushing and milling the samples (the size fractions are standard fractions), then analysed with X-ray spectral t · No core is available for verification sampling · Aspects of the determination of mineralisation that are Material to the Public Report. · In cases where 'industry standard' work has been done this would be relatively simple (e.g. 'reverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assay'). In other cases, more explanation may be required, such as where there is coarse gold that has inherent sampling problems. Unusual commodities or mineralisation types (e.g. submarine nodules) may warrant disclosure of detailed information. Drilling techniques Drill sample recovery · Drill type (e.g. core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc) and details (e.g. core diameter, triple or standard tube, depth of diamond tails, facesampling bit or other type, whether core is oriented and if so, by what method, etc). · Drilling was conducted using standard HQ sized diamond dr · Method of recording and assessing core and chip sample recoveries and results assessed. · Core recovery was an average of 42%, the total range was fro · Measures taken to maximise sample recovery and ensure representative nature of the samples. · Various drilling campaigns were conducted by geological exp · The drill holes purpose ranged from geochemical sampling u are not included in the data for this announcement) to dee with assay data through the Rulikha deposit were included · Recovery logs are unavailable for drill hole data base, so the and grade has not been evaluated. Criteria JORC Code explanation Commentary · Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential loss/gain of fine/coarse material. Logging · Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation, mining studies and metallurgical studies. · Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc) photography. · Geologists from the various companies and expeditions com · The logging was approved by the committee for geology. · Sections and plan maps were available to verify geology and · East Star geologists were able to confirm the geology at surfa scale of 1:2000 in 2024. · Approximately 80% of the logged sections were available for and additional information has been requested to inform fu · The total length and percentage of the relevant intersections logged. Sub-sampling techniques and sample preparation · If core, whether cut or sawn and whether quarter, half or all core taken. · If non-core, whether riffled, tube sampled, rotary split, etc and whether sampled wet or dry. · Half core samples were collected for processing. · Sub sampling techniques aren't clearly recorded in the repor · For all sample types, the nature, quality, and appropriateness of the sample preparation technique. · Quality control procedures adopted for all subsampling stages to maximise representivity of samples. · Measures taken to ensure that the sampling is representative of the in-situ material collected, including for instance results for field duplicate/second-half sampling. · Whether sample sizes are appropriate to the grain size of the material being sampled. Quality of assay data and laboratory tests · The nature, quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total. · For geophysical tools, spectrometers, handheld XRF instruments, etc, the parameters used in determining the analysis including instrument make and model, reading times, calibrations factors applied and their derivation, etc. · Nature of quality control procedures adopted (e.g. standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (i.e. lack of bias) and precision have been established. Verification of sampling and assaying · The verification of significant intersections by either independent or alternative company personnel. · The use of twinned holes. · Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) protocols. · Discuss any adjustment to assay data. · The samples were analyzed using X-ray spectral analysis, wh homogeneous samples to ensure accurate detection of ele · It's unclear if Au and Ag analyses were conducted on all samp · The preparation would have been tailored to produce a sam spectrometer, typically involving pressing the powdered sa a glass bead for analysis, though the reports do not specify · X-ray spectral techniques were commonly used in historical e techniques have been subsequently replaced by modern a they are generally viewed as having produced accurate resu only been evaluated as reported historically by East Star ge represented as such in this announcement. · Sampling data has been compared between reports. · No verification sampling of the historical assays has been co Criteria JORC Code explanation Commentary Location of data points · Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys), trenches, mine workings and other locations used in Mineral Resource estimation. · Drill holes were surveyed using Garmin GPSMAP 62S handhe planned once all drilling is completed. · Specification of the grid system used. · Quality and adequacy of topographic control. Data spacing and distribution · Data spacing for reporting of Exploration Results. · Whether the data spacing and distribution is sufficient to establish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied. · Whether sample compositing has been applied. · Grid system WGS84, UTM44N. · 20 historical drill holes have been located in the area during m · Some errors were noted in the elevation readings (from 5 - 1 to the elevation values of the SRTM topography over the ar · Historical drilling grid for the Rulikha deposit: 200 x 100 m for m or 300 x 200 m for P1 category. · Geological distribution is sufficient for an exploration target calcluations. · Significant intercepts are reported for results from 2024 drilli parameters: Parameter Report 1 Report 2 R Element Cu Cu Z Min Cut-off Grade % 1 0.3% 0 Max Cut-off Grade % n/a n/a n Min Intercept Length (metres) n/a 2m n Maximum Consecutive Internal Waste (m) 2m 2m 2 Minimum Intercept Grade % n/a All (no filter) A fi Co-elements in report Pb, Zn Pb, Zn C · Orientation of data in relation to geological structure · Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known, considering the deposit type. Sample security · The measures taken to ensure sample security. · Sample security is unclear and cannot be verified by East Sta Audits or reviews · The results of any audits or reviews of sampling techniques and data. · No audits were undertaken for this work. · If the relationship between the drilling orientation and the orientation of key mineralized structures is considered to have introduced a sampling bias, this should be assessed and reported if material. · Samples were reportedly taken for intervals with significant s · The ore body generally dips 10 to 25°to the SW. In some part steeper 40. These steeper areas of mineralization are interp mineralization deformation. · The ore body is cut by NS and EW faults. Section 2 Reporting of Exploration Results Criteria JORC Code explanation Commentary Mineral tenement and land tenure status · Type, reference name/number, location and ownership including agreements or material issues with third parties such as joint ventures, partnerships, overriding royalties, native title interests, historical sites, wilderness or national park and environmental settings. · The Rulikha polymetallic Deposit is partially located in the eastern part of exploration license 1799-EL (the "License"). The license was issued to Rudny Resources Limited on 28 July 2022 for initial period of 6 years with a possibility of further five years extension subject to reduction of the license area by 40%. · The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area. · East Star resources have servitude for exploration from the local Akim (administrative head), and local landholders, over some areas within the Licence and the license can be explored under these agreements. Additional agreements will be required for the Rulikha deposit. · Some other areas within the Licence are restricted in access due to hydrogeological constraints. Additional permission will be required to gain access to drill within these areas. Criteria JORC Code explanation Commentary · There are no known legal or security impediments to obtaining a mining license. Exploration done by other parties · Acknowledgment and appraisal of exploration by other parties. · Table of previously completed exploration Principal author, year Period 1948 Exploration Results 1948 Prospecting and exploration at Talovskoye and Openyshevskoye deposits by Priirtysh Geological Exploration Party. Identified polymetallic deposits in Rudny Altai, including early recognition of Rulikha and Talovskoye potential. 1950-1954 19501953 Prospecting and exploration by Shemonaikha Party of Altai Expedition, focusing on geological mapping and initial drilling. Confirmed polymetallic mineralization in the Rulikha area, establishing a foundation for further exploration. 1955-1963 19541962 Geological mapping, drilling, and reserve calculation by Shemonaikha GRP. Consolidated report in 1957 calculated reserves for Rulikhinskoye. Delineated Rulikha deposit's geological structure; reserves calculated as of 01.01.1957, confirming VMS-polymetallic mineralization (Cu, Pb, Zn). 1968 1968 Geological structure and mineral resource assessment of M-44-57B, G; M-44-58-A-v sheets. Provided regional geological context, supporting Rulikha's placement within the Aleysk anticlinorium. 1965-1970 19651969 Geological prospecting by Shemonaikha GRP, including geophysical surveys and drilling. Refined geological and geophysical understanding of Rulikha, identifying orehosting structures. 1971 19681971 Geological and geophysical work by Priirtyshskaya Party at Rulevsky site. Further delineated Rulikha's mineralization, confirming its association with TalovskayaGerikhovskaya formation contact. 1979 1979 General prospecting at Buzanikhinsky area, adjacent to Rulikha. Identified additional mineralization potential near Rulikha, supporting regional prospectivity. 1983 19781982 Detailed prospecting by Minsk GRP at RulikhinskoVydrikhinsky area; drilling and geophysical surveys. Confirmed extent of Rulikha mineralization, refined ore zone boundaries, and identified vein-type ores. 1983 19791983 Detailed prospecting by Ubin GRP at TalovskoRulevsky area, focusing on Talovskoye and Rulikha flanks. Positive assessment of Talovskoye; Rulikha flanks showed limited economic potential but warranted further study. 1992 19891992 Deep drilling (6,785 m), geophysical logging (6,607 m gamma), 737 geochemical samples, 16 core samples; X-ray Negative assessment for Rulikha deep horizons (to 1000 m); vein-type ores in borehole No. 323 (3.60-5.84% Zn) Criteria JORC Code explanation Commentary Principal author, year 1948 ESR Geology · Deposit type, geological setting, and style of mineralisation. Period 1948 2024 Exploration Results spectral analysis for Cu, Pb, Zn, Co, Mo. uneconomic. Talovskoye deemed promising with P1/P2 resources, recommended for further drilling (9,250 m). Prospecting and exploration at Talovskoye and Openyshevskoye deposits by Priirtysh Geological Exploration Party. Identified polymetallic deposits in Rudny Altai, including early recognition of Rulikha and Talovskoye potential. Drilling of six verification and in-fill holes, topography survey, development of lithological model MRE report · Rulikha is Volcanogenic Massive Sulphide (VMS) deposit. Historical reports indicate that the type is felsic bimodal (or Kuroko-type). · The mineralization is lenticular massive and disseminated sulphides hosted in volcaniclastic units sub horizontal units. · Mineralisation occurs as zinc rich and copper-zinc rich units · The area has seen post depositional de