Announcement PDF Maritana Minerals Limited | ABN 88 007 761 186 | maritanaminerals.com.au PO Box 1064, West Perth WA 6872 | +61 8 9386 9534 | info@maritanaminerals.com.au ASX: MRT ASX ANNOUNCEMENT 24 September 2026 BOORARA MINERALISATION EXTENDED BELOW PLANNED PIT SUPPORTING POTENTIAL RESOURCE GROWTH Maritana Minerals Limited (ASX: MRT) (“Maritana” or “the Company”) is pleased to announce results from reverse circulation drilling at its 100% owned Boorara Gold Project, located 17km east of Kalgoorlie-Boulder in the Western Australian Goldfields, which has extended gold mineralisation below the floor of the planned Pit 4 open pit. Commencing in June 2026, the Boorara drilling forms part of the ≈60,000m resource conversion campaign underway across multiple projects1 . HIGHLIGHTS • Boorara mineralisation extended below the planned Pit 4 floor and remains open at depth includes: • 23m at 1.80 g/t Au from 177m including 1m @ 6.88 g/t Au from 181m (BOORD260043); and • 6m at 3.68 g/t Au from 203m including 1m @ 13.87 g/t Au from 205m (BOORD260043) • In-fill drill results also support planned mining activities, with significant results including: • 19m @ 2.32 g/t Au from 142m including 1m @ 4.80 g/t Au from 158m (BOORD260042) • 24m @ 2.38 g/t Au from 122m including 3m @ 4.91 g/t Au from 139m (BOORD260058) • 4m at 8.52 g/t Au from 141m including 1m @ 29.14 g/t Au from 143m (BOORD260039) • 25m @ 1.88 g/t Au from 150m including 2m @ 10.91 g/t Au from 160m (BOORD260045) • 1m @ 145.07 g/t Au from 105m (BOORD260024) • The total program consisting of 119 holes for 17,246m at Boorara has been completed with assays so far returned for the 67 holes as reported in this announcement • Boorara is one of the key ore sources for the Black Swan Processing Hub2 , with mining to restart targeted for mid-20272 • Results will be incorporated into an updated Boorara Mineral Resource Estimate once the remaining assays are received, (expected in the December 2026 quarter), with further pit optimisation to follow Managing Director and CEO comment Mr Grant Haywood, Managing Director and CEO: “These results confirm that gold mineralisation at Boorara extends beyond the floor of the planned Pit 4 – which is already approximately 90 metres below the current limits of previous mining – and remains open at depth. Once all assays from the program are received, they will be incorporated into an updated Mineral Resource Estimate for Boorara and assessed in pit optimisation work below the current design as we work towards a restart of mining at Boorara in mid-2027.” 1 ASX Announcement “Maritana Commences Resources Conversion Drilling” dated 25 June 2026 2 ASX Announcement “Maritana Commences Resources Conversion Drilling” dated 25 June 2026 maritanaminerals.com.au Page | 2 Resource Definition/Extension Drilling Program and Results Maritana, as part of the approximately 60,000m resource conversion program has safely completed the resource definition and extensional RC drilling program at its flagship Boorara gold project with assay results received and validated for the first 67 drillholes. The infill drilling reported in this announcement is primarily below the recently mined Pit 4 with some extensional drilling to the South, and to the North of Pit 2 (Figure 1). Figure 1 – Boorara Gold Project drill collar plan showing 2026 reverse circulation drilling coloured by maximum downhole gold grade, Maritana tenements and the locations of Cross Sections 1 to 4 Surface drilling was undertaken broadly angled towards the southwest to intersect the vertical contact mineralisation as well as some of the shallower veins and quartz stockwork in the footwall. Infill drilling is aimed at improving the definition of the major contact lodes, defining the mining width of mineralisation as well as maritanaminerals.com.au Page | 3 increasing the resource confidence. A small number of extensional drillholes along strike and down dip of the orebody indicate that mineralisation remains open to the north and at depth (Figures 2 – 5). The results confirm that the sheeted and stockwork quartz-carbonate vein arrays hosted in quartz dolerite continue beneath the current Boorara pit design, in the same style and orientation as the mineralisation mined above. Full results of the significant gold intercepts from the 67 RC drillholes received to date are presented in Table 1. Drill collar coordinate details for the drillholes reported in this announcement are shown in Table 2. Figure 2 – Cross Section 1 (north of Pit 2), looking north-east, showing 2026 drill traces and significant intercepts maritanaminerals.com.au Page | 4 Figure 3 – Cross Section 2 (Pit 4) showing the mineralised zone continuing below the designed pit shell, with mineralisation open at depth maritanaminerals.com.au Page | 5 Figure 4 – Cross Section 3 (Pit 4) showing intercepts in BOORD260043, BOORD260045 and BOORD260046 below the designed pit shell maritanaminerals.com.au Page | 6 Figure 5 – Cross Section 4 (Pit 4) showing intercepts in BOORD260057, BOORD260058 and BOORD260059, with mineralisation open at depth Overview - Boorara The Boorara Gold Project lies 17 km east of Kalgoorlie-Boulder, adjacent to the Super Pit and approximately 1 km southwest of the Nimbus site, where established offices, mains power and water are in place (Figure 6). Mineralisation is reported across three deposits — Royal, Regal and Crown Jewel — over approximately 1.5 km of strike, on granted Mining Leases. Gold mineralisation at Boorara is hosted in a typical quartz dolerite comprising a sheeted quartz vein array system with bounding shear zones and late-stage cross faults. Mineralisation occurs as: maritanaminerals.com.au Page | 7 • Northwest dipping sheeted and stockwork quartz-carbonate vein arrays within the quartz dolerite host rocks and; • Steeply dipping zones along sheared geological contacts trending to the north-northwest Mining at Boorara was paused in December 2025 and the site is currently on care and maintenance, with pre- production planning, site layout and grade control drilling underway ahead of a mining restart targeted for mid- 20273 . Figure 6 – Maritana Minerals project locations, regional geology and surrounding infrastructure 3 ASX Announcement “Maritana Commences Resources Conversion Drilling” dated 25 June 2026 maritanaminerals.com.au Page | 8 Next Steps The Company will provide an update on the remaining outstanding assay results as they become available, with all results expected early in the December quarter 2026. When all results have been received, the process of orebody interpretation and re-estimation of the Mineral Resource is planned and due for completion during the March quarter 2027. Multi-stage grade control drilling will be designed and completed prior to open pit ore production in mid- 2027. Table 1 – Intercepts are down hole and not true width and were calculated based on a sample returning an assay value of greater than 0.5 g/t Au over an interval no greater than 1.0 m, with no more than 1m of internal dilution. Results rounded to 2 decimal places. Intervals are based on geology and no top cut off was applied. No significant result is represented as NSI in the table. All other assays from the reported drill holes were below the defined cut-off grade of 0.5 g/t Au and are not considered material for public reporting. Hole ID From (m) To (m) Intercept Width (m) Au g/t BOORD260001 59 60 1 2.02 BOORD260001 63 64 1 0.50 BOORD260001 70 71 1 0.69 BOORD260001 73 75 2 0.89 BOORD260001 123 125 2 1.05 BOORD260020 102 103 1 0.70 BOORD260020 105 114 9 0.88 BOORD260020 116 120 4 0.68 BOORD260020 128 129 1 3.45 BOORD260021 87 88 1 0.62 BOORD260021 89 91 2 2.03 BOORD260021 94 97 3 1.15 BOORD260021 100 104 4 1.13 BOORD260022 67 68 1 0.95 BOORD260022 75 79 4 1.19 BOORD260022 85 90 5 0.58 BOORD260022 96 99 3 0.83 BOORD260023 115 132 17 0.82 BOORD260023 134 135 1 1.02 BOORD260024 95 96 1 1.37 BOORD260024 99 103 4 0.75 BOORD260024 105 106 1 145.07 BOORD260024 108 109 1 0.68 BOORD260024 113 114 1 4.74 BOORD260025 105 113 8 4.54 BOORD260025 128 129 1 0.63 maritanaminerals.com.au Page | 9 Hole ID From (m) To (m) Intercept Width (m) Au g/t BOORD260025 134 142 8 1.06 Including 140 141 1 3.80 BOORD260025 144 147 3 0.93 BOORD260025 149 150 1 0.53 BOORD260026 86 96 10 0.96 BOORD260026 103 105 2 2.68 BOORD260026 106 108 2 0.77 BOORD260026 110 113 3 1.70 BOORD260026 118 124 6 0.78 BOORD260027 111 114 3 3.46 Including 113 114 1 6.11 BOORD260027 120 130 10 0.92 BOORD260027 141 148 7 0.88 BOORD260027 150 151 1 0.58 BOORD260030 110 112 2 1.16 BOORD260030 118 131 13 1.53 Including 127 128 1 7.91 BOORD260030 135 138 3 6.21 Including 136 138 2 8.73 BOORD260030 141 142 1 1.08 BOORD260030 153 154 1 0.51 BOORD260030 158 159 1 1.15 BOORD260032 131 133 2 0.91 BOORD260032 138 139 1 0.90 BOORD260032 142 143 1 0.70 BOORD260034 136 137 1 0.72 BOORD260034 150 155 5 1.68 Including 150 151 1 4.55 BOORD260034 157 158 1 0.99 BOORD260035 151 153 2 0.67 BOORD260035 161 162 1 1.05 BOORD260037 124 126 2 0.84 BOORD260038 110 115 5 2.55 Including 111 112 1 7.82 BOORD260038 118 119 1 0.79 BOORD260039 125 126 1 6.24 maritanaminerals.com.au Page | 10 Hole ID From (m) To (m) Intercept Width (m) Au g/t BOORD260039 129 134 5 0.89 BOORD260039 136 137 1 0.50 BOORD260039 141 145 4 8.52 Including 143 144 1 29.14 BOORD260039 150 155 5 0.75 BOORD260039 157 162 5 1.44 BOORD260039 164 168 4 2.53 Including 167 168 1 7.53 BOORD260039 170 171 1 0.50 BOORD260039 172 174 2 1.38 BOORD260040 107 108 1 0.62 BOORD260040 110 111 1 0.56 BOORD260040 112 113 1 0.51 BOORD260040 115 117 2 0.63 BOORD260041 91 116 25 2.31 Including 91 92 1 5.32 Including 104 107 3 4.68 BOORD260041 118 119 1 1.01 BOORD260042 142 161 19 2.32 Including 158 159 1 4.80 BOORD260042 163 175 12 1.54 Including 165 166 1 4.21 BOORD260042 181 182 1 1.80 BOORD260042 184 185 1 2.55 BOORD260043 177 200 23 1.80 Including 181 182 1 6.88 BOORD260043 203 209 6 3.68 Including 205 206 1 13.87 BOORD260043 211 212 1 0.88 BOORD260043 214 216 2 1.02 BOORD260043 225 226 1 0.75 BOORD260044 112 118 6 0.73 BOORD260044 120 122 2 2.07 BOORD260044 125 127 2 2.35 BOORD260044 129 131 2 1.02 BOORD260044 152 154 2 1.79 maritanaminerals.com.au Page | 11 Hole ID From (m) To (m) Intercept Width (m) Au g/t BOORD260044 156 157 1 1.10 BOORD260044 162 163 1 1.81 BOORD260044 166 167 1 1.03 BOORD260044 171 173 2 1.46 BOORD260045 150 175 25 1.89 Including 160 162 2 10.9 BOORD260045 177 180 3 0.61 BOORD260045 182 184 2 0.61 BOORD260045 190 191 1 1.06 BOORD260045 201 205 4 1.12 BOORD260046 120 132 12 2.93 Including 120 122 2 7.24 Including 129 130 1 5.20 BOORD260046 139 143 4 0.79 BOORD260046 147 156 9 1.05 BOORD260046 158 160 2 0.73 BOORD260047 171 198 27 1.87 Including 181 183 2 4.41 Including 184 186 2 5.27 BOORD260047 201 206 5 2.32 Including 203 204 1 7.69 BOORD260047 210 211 1 3.47 BOORD260047 213 215 2 3.13 Including 213 214 1 4.95 BOORD260047 220 221 1 1.24 BOORD260048 160 185 25 1.99 Including 163 166 3 6.69 Including 180 181 1 5.79 BOORD260048 206 207 1 0.63 BOORD260048 218 219 1 0.80 BOORD260049 118 133 15 2.64 Including 122 123 1 14.04 Including 129 130 1 7.57 BOORD260049 137 140 3 0.88 BOORD260049 148 149 1 2.25 BOORD260049 152 153 1 0.93 maritanaminerals.com.au Page | 12 Hole ID From (m) To (m) Intercept Width (m) Au g/t BOORD260049 166 167 1 0.50 BOORD260049 170 171 1 0.78 BOORD260050 95 96 1 0.84 BOORD260050 103 113 10 2.62 Including 104 106 2 5.26 Including 109 110 1 4.31 BOORD260050 116 117 1 1.05 BOORD260050 120 121 1 0.50 BOORD260050 123 130 7 0.90 BOORD260050 134 137 3 0.88 BOORD260050 139 140 1 0.61 BOORD260050 145 146 1 2.90 BOORD260050 152 153 1 0.56 BOORD260051 137 153 16 3.63 Including 138 142 4 6.59 Including 143 145 2 7.14 Including 150 151 1 5.73 BOORD260051 155 157 2 0.86 BOORD260051 159 162 3 2.60 Including 159 160 1 4.59 BOORD260051 164 184 20 1.26 Including 180 181 1 4.91 BOORD260051 187 188 1 0.87 BOORD260052 152 170 18 2.49 Including 158 159 1 4.29 Including 165 167 2 4.97 Including 169 170 1 12.47 BOORD260052 172 174 2 0.85 BOORD260055 137 138 1 0.92 BOORD260055 140 157 17 2.40 Including 144 145 1 4.09 Including 146 147 1 4.54 Including 150 151 1 13.45 BOORD260055 162 178 16 1.14 BOORD260055 187 188 1 0.61 BOORD260055 191 193 2 0.90 maritanaminerals.com.au Page | 13 Hole ID From (m) To (m) Intercept Width (m) Au g/t BOORD260057 155 174 19 1.72 BOORD260057 182 189 7 1.67 BOORD260057 190 191 1 1.63 BOORD260057 193 196 3 0.90 BOORD260057 204 205 1 0.58 BOORD260058 122 146 24 2.38 Including 123 125 2 4.22 Including 137 138 1 4.14 Including 139 142 3 4.91 Including 145 146 1 4.05 BOORD260058 148 155 7 1.16 BOORD260058 160 161 1 0.80 BOORD260058 164 174 10 1.35 Including 172 174 2 3.02 Including 172 173 1 5.49 BOORD260059 101 102 1 0.64 BOORD260059 105 125 20 1.61 Including 110 113 3 4.03 Including 123 124 1 4.55 BOORD260059 127 130 3 1.24 BOORD260059 131 134 3 0.93 BOORD260059 139 140 1 1.75 BOORD260059 145 146 1 0.50 BOORD260060 156 176 20 2.08 Including 168 169 1 4.79 BOORD260060 177 180 3 1.40 BOORD260060 182 188 6 1.19 BOORD260060 190 191 1 0.55 BOORD260060 213 214 1 1.56 BOORD260061 126 145 19 2.27 Including 137 141 4 5.24 BOORD260061 150 151 1 0.77 BOORD260061 154 157 3 2.04 BOORD260061 160 169 9 0.82 BOORD260061 176 179 3 0.82 BOORD260061 181 182 1 0.63 maritanaminerals.com.au Page | 14 Hole ID From (m) To (m) Intercept Width (m) Au g/t BOORD260062 104 114 10 1.56 BOORD260062 119 126 7 0.90 BOORD260062 129 130 1 0.80 BOORD260062 133 135 2 0.67 BOORD260063 166 185 19 1.31 Including 180 181 1 4.17 BOORD260063 187 188 1 5.51 BOORD260063 196 199 3 0.81 BOORD260063 202 203 1 0.94 BOORD260064 117 118 1 2.31 BOORD260064 122 129 7 2.00 BOORD260064 131 134 3 1.93 BOORD260064 145 150 5 1.55 BOORD260065 114 116 2 1.58 BOORD260065 118 124 6 1.92 BOORD260065 126 130 4 1.16 BOORD260065 135 136 1 0.68 BOORD260066 93 99 6 1.61 Including 96 97 1 5.24 BOORD260066 102 106 4 1.65 BOORD260066 108 110 2 1.43 BOORD260066 116 118 2 1.37 BOORD260066 124 125 1 0.57 BOORD260067 118 128 10 1.68 Including 119 120 1 4.20 BOORD260067 130 131 1 1.05 BOORD260067 133 138 5 1.34 Including 134 135 1 4.32 BOORD260068 103 106 3 3.04 Including 103 104 1 4.81 BOORD260068 121 122 1 0.72 BOORD260068 125 127 2 0.64 BOORD260069 88 90 2 0.86 BOORD260070 118 119 1 0.58 BOORD260070 121 122 1 0.62 BOORD260070 128 130 2 0.53 maritanaminerals.com.au Page | 15 Hole ID From (m) To (m) Intercept Width (m) Au g/t BOORD260070 131 132 1 0.62 BOORD260071 85 87 2 0.74 BOORD260071 98 101 3 1.27 BOORD260072 74 77 3 0.84 BOORD260072 82 87 5 0.51 BOORD260072 89 90 1 0.57 BOORD260072 95 96 1 0.62 BOORD260073 NSI BOORD260074 89 90 1 6.79 BOORD260078 112 113 1 1.73 BOORD260078 129 130 1 0.73 BOORD260081 93 94 1 0.60 BOORD260087 88 90 2 0.88 BOORD260087 92 94 2 1.78 BOORD260087 102 104 2 1.70 BOORD260089 48 52 4 0.66 BOORD260090 NSI BOORD260091 111 112 1 0.52 BOORD260093 56 57 1 0.64 BOORD260094 61 62 1 0.53 BOORD260094 65 67 2 0.89 BOORD260094 79 80 1 2.14 BOORD260095 48 50 2 0.64 BOORD260095 57 60 3 1.58 BOORD260095 64 66 2 0.74 BOORD260122 NSI BOORD260123 NSI BOORD260124 NSI BOORD260125 NSI BOORD260126 NSI BOORD260127 NSI BOORD260136 32 33 1 0.52 BOORD260136 45 47 2 0.54 BOORD260136 49 52 3 1.02 BOORD260136 54 57 3 0.59 BOORD260136 58 59 1 1.06 maritanaminerals.com.au Page | 16 Hole ID From (m) To (m) Intercept Width (m) Au g/t BOORD260136 77 78 1 1.20 BOORD260136 83 85 2 1.32 BOORD260136 99 100 1 0.67 BOORD260136 101 102 1 1.29 BOORD260138 18 19 1 0.60 BOORD260141 NSI BOORD260143 95 96 1 0.95 Table 2 – Collar location details of reported RC resource definition drillholes at Boorara, in MGA2020, Zone 51 Hole Id MGA2020 East (m) MGA2020 North (m) RL (m) Azi Dip EOH (m) Tenement ID BOORD260001 370257 6591095 404 240 -60 186 M 26/29 BOORD260020 370352 6590910 404 239 -60 150 M 26/29 BOORD260021 370335 6590901 404 240 -60 126 M 26/29 BOORD260022 370333 6590899 404 238 -50 102 M 26/29 BOORD260023 370360 6590892 403 239 -60 174 M 26/29 BOORD260024 370343 6590882 404 240 -60 150 M 26/29 BOORD260025 370370 6590875 402 242 -60 150 M 26/29 BOORD260026 370353 6590865 404 240 -60 138 M 26/29 BOORD260027 370392 6590864 401 240 -61 204 M 26/29 BOORD260030 370400 6590846 401 240 -60 186 M 26/29 BOORD260032 370410 6590828 400 241 -61 162 M 26/29 BOORD260034 370424 6590813 398 240 -60 210 M 26/29 BOORD260035 370440 6590800 396 240 -60 204 M 26/29 BOORD260037 370422 6590789 397 240 -60 150 M 26/29 BOORD260038 370405 6590779 398 239 -60 132 M 26/29 BOORD260039 370434 6590773 399 240 -60 201 M 26/29 BOORD260040 370416 6590762 397 240 -60 174 M 26/29 BOORD260041 370414 6590762 398 239 -50 162 M 26/29 BOORD260042 370454 6590761 396 240 -60 200 M 26/318 BOORD260043 370486 6590757 395 241 -60 245 M 26/318 BOORD260044 370432 6590749 396 240 -60 174 M 26/318 BOORD260045 370469 6590747 395 240 -60 216 M 26/318 BOORD260046 370452 6590737 394 239 -60 180 M 26/318 BOORD260047 370489 6590735 394 239 -60 264 M 26/318 BOORD260048 370503 6590720 396 240 -60 234 M 26/318 maritanaminerals.com.au Page | 17 Hole Id MGA2020 East (m) MGA2020 North (m) RL (m) Azi Dip EOH (m) Tenement ID BOORD260049 370458 6590718 394 240 -60 210 M 26/318 BOORD260050 370455 6590716 394 240 -50 156 M 26/318 BOORD260051 370485 6590710 395 242 -60 200 M 26/318 BOORD260052 370504 6590698 394 241 -60 174 M 26/318 BOORD260055 370511 6590672 395 239 -60 216 M 26/318 BOORD260057 370522 6590662 395 240 -60 222 M 26/318 BOORD260058 370504 6590651 394 239 -60 186 M 26/318 BOORD260059 370501 6590650 394 239 -50 166 M 26/318 BOORD260060 370533 6590645 395 240 -60 216 M 26/318 BOORD260061 370517 6590636 394 240 -60 198 M 26/318 BOORD260062 370514 6590634 394 239 -50 174 M 26/318 BOORD260063 370545 6590629 397 240 -61 222 M 26/318 BOORD260064 370521 6590615 394 240 -60 180 M 26/318 BOORD260065 370529 6590597 394 238 -60 174 M 26/318 BOORD260066 370526 6590595 394 239 -51 138 M 26/318 BOORD260067 370540 6590580 394 241 -59 150 M 26/318 BOORD260068 370535 6590554 394 240 -60 135 M 26/318 BOORD260069 370531 6590552 393 241 -51 115 M 26/318 BOORD260070 370558 6590544 393 239 -59 150 M 26/318 BOORD260071 370541 6590534 393 240 -59 120 M 26/318 BOORD260072 370532 6590529 394 240 -50 108 M 26/318 BOORD260073 370561 6590523 395 241 -60 162 M 26/318 BOORD260074 370540 6590511 395 240 -60 126 M 26/318 BOORD260078 370206 6591182 406 238 -60 156 M 26/29 BOORD260081 370188 6591171 405 241 -60 144 M 26/29 BOORD260087 370251 6591138 405 240 -60 132 M 26/29 BOORD260089 370161 6591133 403 243 -60 108 M 26/29 BOORD260090 370189 6591126 403 239 -60 138 M 26/29 BOORD260091 370247 6591122 404 238 -60 174 M 26/29 BOORD260093 370180 6591098 402 240 -60 96 M 26/29 BOORD260094 370195 6591093 402 240 -60 97 M 26/29 BOORD260095 370166 6591091 402 240 -60 66 M 26/29 BOORD260122 370543 6590451 400 240 -60 102 M 26/318 BOORD260123 370507 6590432 400 240 -60 102 M 26/318 BOORD260124 370562 6590416 400 239 -61 102 M 26/318 BOORD260125 370473 6590410 400 239 -60 102 M 26/318 maritanaminerals.com.au Page | 18 Hole Id MGA2020 East (m) MGA2020 North (m) RL (m) Azi Dip EOH (m) Tenement ID BOORD260126 370526 6590397 400 239 -60 84 M 26/318 BOORD260127 370438 6590391 400 240 -60 102 M 26/318 BOORD260136 369602 6592191 400 239 -61 102 M 26/29 BOORD260138 369566 6592171 400 240 -60 84 M 26/29 BOORD260141 369532 6592150 400 241 -60 100 M 26/29 BOORD260143 369497 6592131 400 240 -60 100 M 26/29 Competent Person Statement — Exploration Results The information in this announcement that relates to exploration results, geology and data compilation and fairly represents, information and supporting documentation compiled under the supervision and review of Mr Stephen Guy, a Competent Person who is a Member of The Australian Institute of Geoscientists (8203). Mr Guy is the Chief Geologist for Maritana Minerals, is a full-time employee of the Company and holds shares and options in the Company. Mr Guy has sufficient experience which 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”. Mr Guy consents to the inclusion in this announcement of the matters based on this information in the form and context in which it appears. Compliance Statement — Previously Reported Information The information in this announcement that relates to the Boorara Mineral Resource Estimate and Ore Reserve is extracted from the ASX announcement titled Annual Mineral Resources and Reserves Statement dated 20 August 2026, which is available at www.asx.com.au. The Company confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement and that all material assumptions and technical parameters underpinning the estimates in that announcement continue to apply and have not materially changed. The Company confirms that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original market announcement. The information in this announcement that relates to the Boorara Life of Mine plan and the targeted mid-2027 mining restart is extracted from the ASX announcement titled “Studies Support Standalone Gold Development in WA Goldfields” dated 17 February 2026. The Company confirms that all material assumptions underpinning the production targets and forecast financial information derived from the production targets in that announcement continue to apply and have not materially changed. Authorised for release by the Board of Directors. For further information, please contact: Grant Haywood Michael Vaughan Managing Director and CEO Investor and Media Relations – Fivemark grant.haywood@maritanaminerals.com.au michael.vaughan@fivemark.com.au +61 8 9386 9534 +61 422 602 720 maritanaminerals.com.au Page | 19 JOIN MARITANA MINERALS INTERACTIVE HUB Visit https://maritanaminerals.com.au/auth/signup for Maritana Minerals’ Interactive InvestorHub MARITANA MINERALS Email: info@maritanaminerals.com.au Forward Looking and Cautionary Statements Some statements in this report regarding estimates or future events are forward looking statements. They include indications of, and guidance on, future earnings, cash flow, costs and financial performance. Forward looking statements include, but are not limited to, statements preceded by words such as “planned”, “expected”, “projected”, “estimated”, “may”, “scheduled”, “intends”, “anticipates”, “believes”, “potential”, “could”, “nominal”, “conceptual” and similar expressions. Forward looking statements, opinions and estimates included in this announcement are based on assumptions and contingencies which are subject to change without notice, as are statements about market and industry trends, which are based on interpretations of current market conditions. Forward looking statements are provided as a general guide only and should not be relied on as a guarantee of future performance. Forward looking statements may be affected by a range of variables that could cause actual results to differ from estimated results, and may cause the Company’s actual performance and financial results in future periods to materially differ from any projections of future performance or results expressed or implied by such forward looking statements. These risks and uncertainties include but are not limited to liabilities inherent in mine development and production, geological, mining and processing technical problems, the inability to obtain any additional mine licenses, permits and other regulatory approvals required in connection with mining and third party processing operations, competition for among other things, capital, acquisition of reserves, undeveloped lands and skilled personnel, incorrect assessments of the value of acquisitions, changes in commodity prices and exchange rate, currency and interest fluctuations, various events which could disrupt operations and/or the transportation of mineral products, including labour stoppages and severe weather conditions, the demand for and availability of transportation services, the ability to secure adequate financing and management’s ability to anticipate and manage the foregoing factors and risks. There can be no assurance that forward looking statements will prove to be correct. Statements regarding plans with respect to the Company’s mineral properties may contain forward looking statements in relation to future matters that can only be made where the Company has a reasonable basis for making those statements. This announcement has been prepared in compliance with the JORC Code (2012) and the current ASX Listing Rules. The Company believes that it has a reasonable basis for making the forward-looking statements in the announcement, including with respect to any production targets and financial estimates, based on the information contained in this and previous ASX announcements. maritanaminerals.com.au Page | 20 Appendix 1 – JORC Code (2012) Table 1, Section 1 The following Table and Sections are provided to ensure compliance with the JORC Code (2012 edition) guidelines for the reporting of Exploration Results. SECTION 1 Sampling Techniques and Data Boorara Project (Criteria in this section apply to all succeeding sections) Criteria JORC Code explanation Commentary 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. Sampling was conducted using truck mounted Austex X350 Reverse Circulation (RC) drillingrig from surface. For RC drilling, samples were collected as both 4 m composites and 1 m splits using a cyclone and cone splitter to obtain ~2-3 kg representative samples. Include reference to measures taken to ensure sample representivity and the appropriate calibration of any measurement tools or systems used. RC samples were collected at 1 m intervals directly from a cyclone and cone splitter mounted on the rig. 1 m samples were collected when logging identified key host lithologies, quartz veining and other key geological observations directly related to gold mineralization. 4 m composite samples were collected from the 1 m spoil piles for the remainder of the drill hole. The cyclone and splitter were cleaned regularly to minimize contamination. maritanaminerals.com.au Page | 21 SECTION 1 Sampling Techniques and Data Boorara Project (Criteria in this section apply to all succeeding sections) Criteria JORC Code explanation Commentary 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. Field duplicates, QAQC certified reference standards and blanks were collected/inserted at a rate of 1 in every 20 m (maximum) through pre-determined mineralised zones. All samples were crushed and split to produce a 500 g jar of material for Photon Assay Analysis. Sampling and QAQC procedures are carried out using Maritana protocols consistent with industry best practice. Drilling Techniques 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, face-sampling bit or other type, whether core is oriented and if so, by what method, etc). RC drilling was carried out using a face sampling hammer with a 127mm (5”) drill bit. maritanaminerals.com.au Page | 22 SECTION 1 Sampling Techniques and Data Boorara Project (Criteria in this section apply to all succeeding sections) Criteria JORC Code explanation Commentary Drill sample recovery Method of recording and assessing core and chip sample recoveries and results assessed. Sample recoveries for RC are visually estimated qualitatively on a metre basis and recorded in the database. Measures taken to maximise sample recovery and ensure representative nature of the samples. Drilling contractors adjust their drilling approach to specific conditions to maximise sample recovery. RC samples are visually assessed for recovery and moisture. A cyclone and cone splitter were used to provide uniform sized samples. 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. No sample recovery issues have affected potential sample bias. 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. All drilled intervals (RC) are logged and recorded. Data for RC drilling was recorded as regolith, lithology, veining, fabric (structure), grain size, colour, sulphide presence, alteration and oxidation state, where possible to observe. Maritana considers the data to be of an appropriate level of detail to support future resource estimations. maritanaminerals.com.au Page | 23 SECTION 1 Sampling Techniques and Data Boorara Project (Criteria in this section apply to all succeeding sections) Criteria JORC Code explanation Commentary Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc) photography. Logging is both qual