Announcement PDF ASX Announcement 19 December 2025 High Grade Results Materially Extend Gallium, REE & Phosphate Mineralisation Tundulu & Machinga Projects, Malawi Highlights Tundulu Rare Earth, Phosphate & Gallium Project • Results from systematic surface sampling confirms and materially extends known high- grade gallium (Ga) mineralisation across Nathace Hill, reinforcing Tundulu’s potential as a large, multi-commodity critical minerals system. Only ~40% of the project has been drill tested. • High Grade Gallium results of up to 82g/t Ga2O3, with strong multi-commodity credits including REEs, phosphate and niobium, (Figure 3). • Standout results include: o 82g/t Ga₂O₃, 2.19% TREO, 14.77% P₂O₅ and 0.87% Nb₂O₅ (PHA0160) o 76.62g/t Ga2O3 including 2.64% TREO and 0.11% Nb2O5 (PHA0124) o 64.52g/t Ga2O3 including 2.02% TREO and 9.17% P2O5 (PHA0082) o 77.96g/t Ga2O3 including 1.98% TREO (PHA0092) o 67.21g/t Ga2O3 including 1.83% TREO and 11.21% P2O5 (PHA0151) o 60.49g/t Ga2O3 including 2.18% TREO and 0.24% Nb2O5 (PHA0163) • Gallium mineralisation is now demonstrated across the entirety of Nathace Hill, significantly extending the footprint beyond previously recognised high-grade zones (Figure 4). • Results also confirm previously underappreciated Niobium (Nb2O5) mineralisation, adding further strategic optionality. Machinga HREE & Niobium Project • Surface sampling, including 116 rock-chip and soil samples, has confirmed gallium as an additional high-value component within the Machinga Project, alongside established HREE and niobium mineralisation (Figure 6). • High-grade gallium results up to 75.28g/t Ga2O3, demonstrating continuity and scale potential across the license area. • Notable results include: o 75.28g/t Ga2O3 (MHG0036) o 73.93g/t Ga2O3 including 0.35% TREO (MHG0043) o 72.59g/t Ga2O3 including 0.79% TREO and 0.66% Nb2O5 (MHG0076) o 72.59g/t Ga2O3 including 0.13% TREO (MHG0044) • Gallium occurrence across the project area further increases its upside potential in addition to the already existing REE and Niobium mineralisation at Machinga. • Sampling across a large radiometric anomaly (Figure 7) returned encouraging REE results of up to 0.79% TREO (MHG0076), confirming the anomaly’s relevance. • The confirmation of gallium at Machinga significantly enhances the project’s upside, supporting further targeted exploration and future drill testing. • Engage with this announcement at the Tusker Minerals Investor Hub. Tusker Minerals Ltd (ASX: TSK, ‘Tusker’ or ‘Company’) is pleased to report outstanding gallium, rare earth element (REE), phosphate and niobium results from recent rock-chip and soil sampling programmes completed at its Tundulu and Machinga Projects in Malawi. A total of 90 samples from Tundulu and 116 samples from Machinga were analysed by SGS in South Africa. The results confirm high-grade gallium mineralisation at both projects, extending the known footprint of mineralisation and reinforcing the significant exploration upside of Tusker’s Malawian portfolio. Chief Executive Officer, Cliff Fitzhenry, commented: “These results are highly significant for Tusker as they clearly demonstrate that high-grade gallium mineralisation at Tundulu extends well beyond the areas previously recognised from historical drilling. Importantly, gallium is now shown to be widespread across Nathace Hill, materially increasing the scale potential of the system. At the same time, the confirmation of gallium mineralisation at Machinga adds a valuable new dimension to a project already recognised for its heavy rare earth, niobium and zirconium potential. Together, these results strengthen Tusker’s position as an emerging critical minerals explorer with exposure to multiple strategically important commodities. We believe this work materially de-risks future exploration and provides a strong foundation for the next phase of targeted drilling.” Tundulu Rare Earth, Phosphate & Gallium Project The Tundulu project, located in southern Malawi, is a large, alkaline intrusive complex hosting rare earths, phosphate and gallium mineralisation. Gallium was recently recognised as a key commodity following a review of historical drilling data.1 The latest sampling programme focused on expanding the understanding of surface mineralisation across Nathace Hill, with particular emphasis on areas that remained largely untested. Samples were collected at 50–100m intervals along north–south lines spaced 50m apart, targeting approximately 60% of the project area that has not previously been systematically sampled or drill tested. Results confirm that high-grade gallium mineralisation is continuous across the entirety of Nathace Hill, significantly extending the known mineralised system beyond previously identified zones. The strong association with REE, phosphate and niobium further supports the interpretation of a large, robust and multi-commodity mineral system. 1 Refer to TSK ASX announcement dated 29 April 2025. Figure 1. Tundulu Project Location Map and Historical Drill Hole locations over Nathace Hill. Machinga HREE & Niobium Project The Machinga Project hosts heavy rare earth, niobium and zirconium mineralisation. This recent soil and rock-chip sampling was designed to test the continuity of mineralisation and assess a large 2.7km- long radiometric anomaly approximately 3km southeast of previous drilling (Figure 2). 116 samples were collected which included 77 rock chips and 39 soil samples at a sample grid of 400m by 200m (Figure 7). Sampling was completed on a 400m by 200m grid, returning strong gallium results alongside encouraging REE and niobium values. The identification of gallium within the radiometric anomaly adds a new layer of value and exploration optionality to the project. Figure 2. Machinga Project Location Map showing U Radiometric Anomalies & historical Geochem anomalies. Figure 3: Map of the sampled Nathace Hill (Tundulu Project) showing the sample locations and high-grade results. Figure 4: Map showing the surface distribution of wide-spread Gallium mineralisation at Nathace Hill, Tundulu Project. Figure 5: Map showing the surface distribution of Phosphate mineralisation at Nathace Hill, Tundulu Project. Figure 6: Map showing the surface distribution of Gallium mineralisation at the Machinga Project. Figure 4: Tusker Minerals heavy mineral sands laboratory in Yaounde. Figure 7: Map of the Machinga Project showing planned & sampled locations across the large U radiometric anomaly that has returned up to 0.79% TREO. -ENDS- This announcement has been authorised by the Board of Tusker Minerals. More information Mr Daniel Smith Mr Cliff Fitzhenry Jessica Fertig Executive Chairman Chief Executive Officer Media and Investor Relations dan@tuskerminerals.com cliff@tuskerminerals.com jessica@taumedia.com.au About Tusker Minerals Tusker Minerals is an African-focused explorer advancing a world-class portfolio of critical mineral assets across Cameroon & Malawi. Tusker’ projects include the Central Rutile Project and Douala Basin HMS Project in Cameroon and the Tundulu, Machinga, and Salambidwe REE Projects in Malawi. Competent Person Statement The information contained in this announcement that relates to geological information and exploration results at the Tundulu and Machinga Projects, is based on information compiled by Mr Clifford Fitzhenry, a Competent Person who is a Registered Professional Natural Scientist with the Council for Natural Scientific Professionals (SACNASP). Mr Fitzhenry is the Company’s CEO and has sufficient experience which is relevant to the style of mineralization 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 Fitzhenry consents to the inclusion in this announcement of the matters based on his information in the form and context in which it appears. Forward-Looking Statements This announcement may include forward-looking statements and opinions. Forward-looking statements, opinions and estimates are only predictions and are subject to risks, uncertainties and assumptions which are outside the control of Tusker Minerals. Past performance is not necessarily a guide to future performance and no representation or warranty is made as to the likelihood of achievement or reasonableness of any forward-looking statements, opinions or estimates. Actual values, results or events may be materially different to those expressed or implied in this announcement. Given these uncertainties, readers are cautioned not to place reliance on forward-looking statements, opinions or estimates. Any forward-looking statements, opinions or estimates in this announcement speak only at the date of issue of this announcement. Subject to any continuing obligations under applicable law and the ASX Listing Rules, Tusker Minerals does not undertake any obligation to update or revise any information or any of the forward- looking statements, opinions or estimates in this announcement or any changes in events, conditions or circumstances on which any such disclosures are based. APPENDIX 1: Table of sampling results for Tundulu Project Sample_ID Northing Easting Elevation Sample_Type %TREO %TREOY Ga2O3 g/t %Nb2O5 P2O5 ppm PHA0124 8280156 801258 793 Rock Chips 2.64 2.66 76.62 0.11 0.47 PHA0160 8280296 801332 718 Rock Chips 2.19 2.33 82 0.87 14.77 PHA0163 8280000 801387 746 Rock Chips 2.18 2.2 60.49 0.24 2.96 PHA0082 8279903 801203 776 Rock Chips 2.02 2.11 64.52 0.02 9.17 PHA0092 8279999 800903 746 Rock Chips 1.98 2 77.96 0.05 0.08 PHA0151 8280307 801297 719 Rock Chips 1.83 1.91 67.21 0.22 11.21 PHA0091 8280005 800853 720 Rock Chips 1.5 1.63 47.05 0.07 21.06 PHA0142 8280255 801299 749 Rock Chips 1.15 1.26 53.77 0.4 12.89 PHA0159 8280344 801332 702 Rock Chips 1.15 1.2 49.74 0.05 5.58 PHA0077 8279852 801202 766 Rock Chips 0.85 1.05 29.57 0 23.06 PHA0131 8280206 801110 774 Rock Chips 0.82 0.86 34.95 0.05 3.07 PHA0084 8279984 800852 728 Rock Chips 0.8 0.81 40.33 0.04 1.88 PHA0076 8279855 801146 764 Rock Chips 0.73 0.91 20.16 0.02 24.47 PHA0080 8279906 801052 773 Rock Chips 0.7 0.72 36.29 0.04 1.9 PHA0085 8279962 800954 770 Rock Chips 0.64 0.64 48.39 0.09 0.08 PHA0086 8279949 801053 798 Rock Chips 0.57 0.58 32.26 0.04 2.51 PHA0136 8280205 801322 773 Rock Chips 0.56 0.63 22.85 0.18 11.68 PHA0162 8280096 801376 765 Rock Chips 0.56 0.57 34.95 0.04 2.01 PHA0137 8280253 800851 704 Rock Chips 0.54 0.62 24.2 0.18 11.71 PHA0074 8279855 801045 759 Rock Chips 0.51 0.53 47.05 0.08 4.07 PHA0164 8279949 801347 745 Rock Chips 0.49 0.64 29.57 0.03 14.85 PHA0166 8279868 801288 761 Rock Chips 0.47 0.72 14.79 0.02 29.86 PHA0100 8280006 801249 799 Rock Chips 0.44 0.46 26.88 0.08 3.66 PHA0155 8280347 801207 714 Rock Chips 0.42 0.45 29.57 0.03 3.72 PHA0158 8280375 801240 705 Rock Chips 0.41 0.42 29.57 0.04 1.44 PHA0105 8280062 801193 851 Rock Chips 0.39 0.39 36.29 0.05 0.33 PHA0109 8280106 800904 744 Rock Chips 0.39 0.4 38.98 0.06 0.68 PHA0118 8280097 801304 790 Rock Chips 0.39 0.4 34.95 0.06 1.41 PHA0073 8279857 800992 736 Rock Chips 0.37 0.39 33.61 0.05 1.99 PHA0140 8280242 801153 751 Rock Chips 0.37 0.38 24.2 0.04 0.48 PHA0133 8280206 801219 808 Rock Chips 0.35 0.37 25.54 0.03 2.3 PHA0130 8280196 801062 766 Rock Chips 0.34 0.35 25.54 0.04 1.94 PHA0146 8280310 801052 732 Rock Chips 0.34 0.34 26.88 0.05 0.6 PHA0138 8280254 800957 720 Rock Chips 0.33 0.35 25.54 0.04 3.98 PHA0101 8280072 800811 712 Rock Chips 0.31 0.35 36.29 0.02 2.66 PHA0121 8280145 800943 762 Rock Chips 0.31 0.33 33.61 0.03 2.61 PHA0139 8280252 801051 738 Rock Chips 0.31 0.34 25.54 0.03 4.05 PHA0148 8280305 801151 725 Rock Chips 0.31 0.31 26.88 0.06 0.56 PHA0149 8280304 801199 724 Rock Chips 0.31 0.32 22.85 0.05 0.28 PHA0094 8280003 800951 764 Rock Chips 0.3 0.31 32.26 0.04 2.77 PHA0106 8280068 801304 785 Rock Chips 0.3 0.33 26.88 0.05 2.75 PHA0123 8280146 801151 810 Rock Chips 0.3 0.31 28.23 0.08 1.62 PHA0107 8280100 800806 710 Rock Chips 0.29 0.3 41.67 0.07 0.67 PHA0122 8280151 801071 792 Rock Chips 0.29 0.3 36.29 0.04 1.09 PHA0111 8280106 801008 786 Rock Chips 0.28 0.3 32.26 0.04 1.24 PHA0128 8280207 800955 740 Rock Chips 0.28 0.29 32.26 0.03 1.7 PHA0099 8280007 801206 818 Rock Chips 0.27 0.29 41.67 0.07 2.23 PHA0110 8280107 800953 764 Rock Chips 0.27 0.29 37.64 0.03 0.78 PHA0147 8280307 801103 738 Rock Chips 0.27 0.27 28.23 0.06 2 PHA0088 8279948 801253 778 Rock Chips 0.26 0.27 26.88 0.04 0.79 PHA0103 8280059 800991 796 Rock Chips 0.26 0.28 28.23 0.03 2.59 Sample_ID Northing Easting Elevation Sample_Type %TREO %TREOY Ga2O3 g/t %Nb2O5 P2O5 ppm PHA0132 8280200 801152 790 Rock Chips 0.26 0.27 22.85 0.04 2.07 PHA0119 8280163 800809 698 Rock Chips 0.25 0.26 36.29 0.04 0.57 PHA0090 8280006 800803 712 Rock Chips 0.24 0.25 33.61 0.06 1.04 PHA0104 8280059 801106 856 Rock Chips 0.24 0.25 33.61 0.03 1.77 PHA0078 8279905 801009 735 Rock Chips 0.23 0.25 43.01 0.02 1.15 PHA0102 8280065 800915 759 Rock Chips 0.23 0.24 33.61 0.05 3.17 PHA0144 8280317 800970 715 Rock Chips 0.23 0.24 17.47 0.09 0.85 PHA0083 8279903 801253 765 Rock Chips 0.22 0.23 28.23 0.04 0.91 PHA0095 8280010 800995 793 Rock Chips 0.22 0.23 29.57 0.03 0.94 PHA0116 8280100 801197 835 Rock Chips 0.22 0.23 26.88 0.05 0.52 PHA0117 8280112 801261 822 Rock Chips 0.22 0.23 33.61 0.04 0.84 PHA0143 8280299 800888 718 Rock Chips 0.22 0.24 26.88 0.06 2.88 PHA0161 8280134 801393 748 Rock Chips 0.22 0.23 6.72 0.02 1.27 PHA0075 8279863 801100 761 Rock Chips 0.21 0.23 29.57 0.04 1.9 PHA0079 8279909 801006 762 Rock Chips 0.21 0.23 32.26 0.01 1.8 PHA0087 8279957 801165 803 Rock Chips 0.21 0.22 32.26 0.05 0.93 PHA0152 8280369 800945 704 Rock Chips 0.21 0.22 24.2 0.03 2.42 PHA0113 8280105 801109 817 Rock Chips 0.19 0.2 28.23 0.05 0.97 PHA0096 8280008 808154 822 Rock Chips 0.18 0.2 30.92 0.06 1.08 PHA0127 8280191 800902 727 Rock Chips 0.18 0.2 21.51 0.04 1.88 PHA0089 8279956 801316 758 Rock Chips 0.15 0.15 32.26 0.04 3.54 PHA0125 8280200 800805 703 Rock Chips 0.15 0.16 25.54 0.05 0.26 PHA0129 8280207 801008 750 Rock Chips 0.15 0.16 32.26 0.04 1.75 PHA0081 8279906 801153 777 Rock Chips 0.14 0.15 25.54 0.04 0.42 PHA0108 8280107 800853 722 Rock Chips 0.14 0.14 36.29 0.06 0.6 PHA0112 8280105 801051 791 Rock Chips 0.14 0.15 36.29 0.05 0.41 PHA0154 8280365 801150 714 Rock Chips 0.14 0.14 22.85 0.06 0.93 PHA0157 8280398 801061 714 Rock Chips 0.14 0.14 32.26 0.04 0.9 PHA0098 8280010 801149 839 Rock Chips 0.13 0.14 30.92 0.05 0.23 PHA0150 8280301 801256 723 Rock Chips 0.13 0.14 28.23 0.05 0.43 PHA0165 8279894 801319 754 Rock Chips 0.12 0.13 30.92 0.05 0.46 PHA0097 8280003 801098 832 Rock Chips 0.11 0.12 22.85 0.07 0.24 PHA0126 8280210 800862 704 Rock Chips 0.11 0.12 36.29 0.02 0.78 PHA0153 8280343 801044 711 Rock Chips 0.11 0.11 24.2 0.04 1.57 PHA0120 8280154 800861 719 Rock Chips 0.1 0.1 26.88 0.05 0.8 PHA0134 8280200 801271 783 Rock Chips 0.08 0.09 24.2 0.04 1.15 PHA0145 8280311 801000 719 Rock Chips 0.08 0.08 24.2 0.02 0.27 PHA0115 8280109 801149 845 Rock Chips 0.07 0.07 33.61 0.04 0.28 PHA0141 8280250 801201 754 Rock Chips 0.06 0.07 22.85 0.02 0.74 APPENDIX 2: Table of sampling results for Machinga Project Sample_ID Northing Easting Elevation Sample_Type %TREO %TREOY Ga₂O₃ (ppm) Nb2O5 (ppm) MHG0001 8313877 752850 902 Rock Chips 0.04 0.04 34.95 41.29 MHG0002 8314226 752485 927 Rock Chips 0.01 0.01 41.67 19.48 MHG0003 8314311 752653 888 Rock Chips 0.04 0.04 41.67 51.09 MHG0005 8314276 753050 855 Rock Chips 0.04 0.05 38.98 62.05 MHG0004 8314283 752758 849 Rock Chips 0.17 0.18 48.39 408.24 MHG0006 8314691 752073 908 Rock Chips 0.19 0.2 53.77 265.94 MHG0007 8314696 752253 889 Rock Chips 0.01 0.01 14.79 26.59 MHG0009 8314714 752672 819 Rock Chips 0.01 0.01 12.1 12.36 Sample_ID Northing Easting Elevation Sample_Type %TREO %TREOY Ga₂O₃ (ppm) Nb2O5 (ppm) MHG0008 8314696 752471 861 Rock Chips 0.01 0.01 24.2 15.4 MHG0010 8314681 752817 823 Rock Chips 0.09 0.1 44.36 148.13 MHG0011 8314710 753031 813 Rock Chips 0.03 0.03 44.36 45.72 MHG0012 8314695 753263 818 Rock Chips 0.01 0.01 17.47 10.73 MHG0013 8315089 751668 980 Rock Chips 0.03 0.04 52.42 54.24 MHG0014 8315086 751867 928 Rock Chips 0.12 0.13 45.7 214.62 MHG0015 8315092 752068 910 Rock Chips 0.04 0.05 52.42 36.86 MHG0016 8315089 752268 876 Rock Chips 0.03 0.03 29.57 62.52 MHG0017 8315063 752446 837 Rock Chips 0.02 0.02 51.08 28.69 MHG0018 8315144 752679 817 Rock Chips 0.05 0.05 45.7 74.42 MHG0019 8315095 752867 791 Rock Chips 0.08 0.09 59.14 114.89 MHG0024 8315510 751252 1082 Rock Chips 0.01 0.02 17.47 24.73 MHG0022 8315085 753252 789 Rock Chips 0 0.01 29.57 10.5 MHG0020 8315110 753050 795 Rock Chips 0.04 0.05 49.74 77.8 MHG0023 8315087 753469 772 Soil 0.02 0.02 20.16 35.81 MHG0026 8315497 751656 987 Rock Chips 0.08 0.08 68.55 104.86 MHG0025 8315490 751453 1031 Rock Chips 0.11 0.13 71.24 162.13 MHG0027 8315492 751865 912 Rock Chips 0.09 0.1 55.11 129.47 MHG0028 8315488 752055 882 Rock Chips 0.04 0.05 24.2 61.35 MHG0029 8315502 752273 850 Rock Chips 0.02 0.02 20.16 35.34 MHG0031 8315522 752718 789 Rock Chips 0.03 0.03 51.08 51.09 MHG0030 8315433 752416 817 Rock Chips 0.07 0.08 56.46 121.31 MHG0034 8315491 753281 757 soil 0.05 0.06 36.29 86.66 MHG0033 8315489 753057 762 soil 0.06 0.07 38.98 110.57 MHG0032 8315481 752867 771 soil 0.05 0.06 43.01 92.38 MHG0040 8315889 751467 977 Rock Chips 0.06 0.07 33.61 109.52 MHG0041 8315898 751668 916 Rock Chips 0.06 0.06 30.92 109.18 MHG0039 8315890 751270 1021 Rock Chips 0.05 0.05 40.33 37.91 MHG0037 8315884 750862 1109 Rock Chips 0.02 0.02 51.08 35.34 MHG0038 8315892 751059 1078 Rock Chips 0.09 0.1 41.67 108.24 MHG0035 8315488 753467 762 soil 0.06 0.07 80.65 61.12 MHG0036 8315490 753667 759 soil 0.04 0.04 75.28 59.25 MHG0044 8315890 752064 836 Rock Chips 0.13 0.13 72.59 264.77 MHG0043 8315891 751871 880 Rock Chips 0.35 0.45 73.93 668.35 MHG0046 8315888 752474 798 soil 0.11 0.12 47.05 184.29 MHG0045 8315883 752295 818 soil 0.13 0.13 57.8 106.96 MHG0049 8315888 753060 765 soil 0.04 0.05 26.88 57.15 MHG0048 8315877 752893 771 soil 0.08 0.09 29.57 148.13 MHG0047 8315897 752643 788 soil 0.09 0.1 34.95 153.96 MHG0054 8316332 750311 1199 Rock Chips 0.03 0.03 26.88 44.35 MHG0053 8315901 753855 749 soil 0.07 0.07 26.88 120.14 MHG0052 8315947 753560 754 soil 0.04 0.05 32.26 92.98 MHG0050 8315910 753291 764 soil 0.05 0.06 53.77 349.04 MHG0051 8315871 753387 760 soil 0.04 0.05 38.98 197.41 MHG0056 8316296 750672 1134 Rock Chips 0.23 0.25 60.49 1373.28 MHG0058 8316277 751070 964 Rock Chips 0.06 0.07 51.08 158.79 MHG0055 8316280 750474 1172 Rock Chips 0.32 0.35 67.21 992.77 MHG0057 8316290 750875 1043 Rock Chips 0.09 0.1 53.77 221.73 MHG0059 8316291 751267 915 Rock Chips 0.05 0.05 47.05 137.33 MHG0060 8316278 751446 878 Rock Chips 0.29 0.32 61.83 1785.26 MHG0062 8316275 751868 820 Rock Chips 0.1 0.11 48.39 68.66 MHG0065 8316277 752254 787 Rock Chips 0.07 0.07 44.36 128.75 Sample_ID Northing Easting Elevation Sample_Type %TREO %TREOY Ga₂O₃ (ppm) Nb2O5 (ppm) MHG0061 8316291 751668 843 Rock Chips 0.19 0.2 55.11 1112.93 MHG0064 8316283 752035 803 Rock Chips 0.07 0.08 47.05 456.33 MHG0066 8316311 752447 782 Rock Chips 0.05 0.06 67.21 888.34 MHG0067 8316289 752674 783 soil 0.05 0.06 32.26 51.5 MHG0069 8316289 753068 770 soil 0.02 0.02 28.23 32.9 MHG0068 8316300 752865 776 soil 0.04 0.04 32.26 74.39 MHG0071 8316294 753466 761 soil 0.07 0.08 40.33 300.41 MHG0070 8316286 753266 759 soil 0.08 0.09 41.67 430.58 MHG0073 8316679 750059 1092 Rock Chips 0.06 0.07 53.77 627.99 MHG0074 8316714 750295 1030 Rock Chips 0.19 0.2 51.08 260.35 MHG0075 8316686 750488 1042 Rock Chips 0.08 0.09 48.39 333.31 MHG0072 8316669 749857 1172 Rock Chips 0.07 0.08 57.8 218.87 MHG0078 8316706 751064 941 Rock Chips 0.07 0.08 52.42 1034.25 MHG0076 8316684 750645 987 Rock Chips 0.79 0.85 72.59 6648.96 MHG0079 8316652 751192 913 Rock Chips 0.03 0.04 49.74 519.27 MHG0077 8316695 750873 979 Rock Chips 0.18 0.19 55.11 271.8 MHG0080 8316699 751468 842 Rock Chips 0.05 0.06 49.74 373.36 MHG0081 8316686 751656 825 Rock Chips 0.2 0.24 49.74 1304.62 MHG0082 8316675 751833 811 soil 0.08 0.09 36.29 298.97 MHG0085 8316729 752280 796 Rock Chips 0.08 0.1 40.33 326.15 MHG0083 8316704 752086 797 soil 0.1 0.11 43.01 197.41 MHG0086 8316682 752488 778 soil 0.01 0.01 4.03 47.21 MHG0090 8316660 753168 764 soil 0.09 0.1 44.36 307.56 MHG0087 8316692 752669 773 soil 0.08 0.09 55.11 356.19 MHG0089 8316694 753020 777 soil 0.08 0.09 45.7 443.46 MHG0088 8316671 752847 769 soil 0.1 0.11 49.74 359.06 MHG0093 8317082 750067 996 Rock Chips 0.23 0.25 52.42 313.28 MHG0094 8317092 750260 964 Rock Chips 0.1 0.1 49.74 211.71 MHG0092 8317090 749872 1009 Rock Chips 0.12 0.15 53.77 590.8 MHG0091 8317089 749670 1020 Rock Chips 0.21 0.22 63.18 171.66 MHG0095 8317087 750479 952 Rock Chips 0.05 0.06 51.08 283.24 MHG0096 8317094 750680 925 Rock Chips 0.09 0.09 47.05 294.68 MHG0098 8317080 751115 854 Rock Chips 0.09 0.1 52.42 231.74 MHG0099 8317093 751303 836 Rock Chips 0.04 0.05 48.39 340.46 MHG0097 8317089 750878 900 Rock Chips 0.25 0.26 59.14 619.41 MHG0101 8317101 751639 832 Rock Chips 0.11 0.11 40.33 194.55 MHG0100 8317088 751469 815 Rock Chips 0.06 0.07 48.39 113.14 MHG0102 8317095 751851 803 soil 0.08 0.09 32.26 131.8 MHG0103 8317078 752067 792 soil 0.08 0.09 33.61 123.64 MHG0104 8317089 752262 780 soil 0.06 0.07 32.26 100.19 MHG0106 8317090 752447 781 soil 0.05 0.06 22.85 90.16 MHG0107 8317056 752663 783 soil 0.06 0.07 34.95 113.61 MHG0108 8317012 752862 777 soil 0.05 0.06 34.95 68.47 MHG0111 8317508 750857 870 Rock Chips 0.06 0.07 40.33 116.64 MHG0110 8317488 750679 888 Rock Chips 0.14 0.15 45.7 374.41 MHG0109 8317487 750499 895 soil 0.13 0.15 49.74 265.94 MHG0113 8317485 751645 802 Rock Chips 0.13 0.15 47.05 328.92 MHG0112 8317527 751470 807 Rock Chips 0.07 0.07 60.49 131.8 MHG0114 8317466 751858 788 soil 0.06 0.07 28.23 118.97 MHG0116 8317493 752264 787 soil 0.11 0.12 45.7 163.3 MHG0115 8317490 752070 791 soil 0.11 0.13 51.08 163.3 MHG0118 8317903 751839 777 Rock Chips 0.07 0.08 36.29 125.97 Sample_ID Northing Easting Elevation Sample_Type %TREO %TREOY Ga₂O₃ (ppm) Nb2O5 (ppm) MHG0117 8317508 752457 781 soil 0.12 0.13 40.33 261.27 MHG0119 8317895 752266 781 Rock Chips 0.07 0.09 40.33 113.84 MHG0120 8317889 752266 782 soil 0.06 0.07 36.29 101.36 MHG0121 8317790 751163 814 Rock Chips 0.3 0.35 64.52 600.7 Annexure 1 A: JORC Code, 2012 Edition – Table 1 report Section 1 Sampling Techniques and Data (Criteria in this section apply to all succeeding sections.) Criteria JORC Code explanation Commentary Sampling techniques • Nature and quality of sampling (eg 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. • 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 (eg ‘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 (eg submarine nodules) may warrant disclosure of detailed information. • Rock chip & Soil samples were taken by Tusker Minerals’ employees from outcrops utilizing a geo-pick and hand tool. • Samples were collected at 50–100m intervals along north–south lines spaced 50m apart (for Tundulu) and a sample grid of 400m by 200m grid (for Machinga) • Sample information recorded at the time of sampling included, colour, lithology, alteration, structures and visual mineralisation. • Duplicate samples are difficult to perform with accuracy and precision. AMIS & OREAS standards were included in the sampling process. • Industry-standard practice was used in the processing of samples for assay. Drilling techniques • Drill type (eg core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc) and details (eg 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). • No recent drilling is utilised on this program or reported in this announcement. Drill sample recovery • Method of recording and assessing core and chip sample recoveries and results assessed. • No recent drilling reported in this announcement. Therefore, no drill sample recovery to report. Criteria JORC Code explanation Commentary • Measures taken to maximise sample recovery and ensure representative nature of the 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. 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. • The total length and percentage of the relevant intersections logged. • Qualitative geological logging of rock chips was completed in the field. • Photographs of the individual rock chip samples were taken before crushing. • Sample information recorded at the time of sampling included, colour, lithology, alteration, structures and visual mineralisation. 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. • For all sample types, the nature, quality and appropriateness of the sample preparation technique. • Quality control procedures adopted for all sub-sampling 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. • The sampling technique used to obtain rock chip samples from outcrops manually is in line with industry standards and standard exploration practices • The samples were crushed to - 8.0 mm, homogenised and split to take a 300g aliquot of each sample for submission to SGS laboratory. • The sample distribution and grid layout is representative of all the in- situ hosting lithologies in the orebody. • As a Quality Control procedure to maximise representativity of samples, the samples were homogenised after crushing, then split using a riffle-splitter to get a representative aliquot to send to the laboratory. Quality of assay data • The nature, quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or • REEs were analysed by using Sodium Fusion with ICP_MS finish and major & minor oxides determination using XRF finish. The technique Criteria JORC Code explanation Commentary and laboratory tests 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 (eg standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established. is considered total. • No handheld XRF instruments were used. • AMIS0908 blank and OREAS 21f, OREAS 101a, OREAS 122 & OREAS 463 Standards were inserted in the sample stream for quality assurance & quality control 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. • No drilling undertaken therefore no verification of sampling intersections required. 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. • Specification of the grid system used. • Quality and adequacy of topographic control. • Albeit not to be used in Mineral resource Estimation, all rock chip sample locations determined by handheld GPS using WGS 84 datum Zone 36S. ±5m accuracy 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. • Individual sample collection points spaced between 50 & 100m at a line spacing of 50m running north-south (Tundulu) & a sample grid of 200m by 400m (Machinga). • Sample spacing covered all the ore hosting lithologies & zones, therefore sufficient to establish both geological & grade continuity, however not suitable for Mineral Resource & Ore Reserve estimation because these are rock chip samples. Criteria JORC Code explanation Commentary • Whether sample compositing has been applied. • No sample compositing done. 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. • If the rela