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nke0d' Pace Analytical <br /> 1673 Terra Avenue Sheridan,WY 82801 ph:(307)672-8945 <br /> ANALYTICAL QC SUMMARY REPORT <br /> CLIENT: Energy Fuels Resources(USA)Inc. Date: 3/6/2023 <br /> Work Order: S2301346 Report ID: S2301346001 <br /> Project: Whirlwind <br /> Total(3060)Metals by ICP-6010C Sample Type: MSD Units: mg/Kg <br /> S2301346-001AMSD(02/13/23 18:44) RunNo:207974 PrepDate: 02/10/23 8:00 BatchlD:20413 <br /> Analyte Result RL Conc %RPD %REC %RPD Limits Qual <br /> Antimony ND 20 ND 24.0 20 S <br /> Arsenic 54 3 54 0.258 96.5 20 <br /> Barium 585 0.5 579 0.927 162 20 S <br /> Beryllium 46.3 0.7 46.6 0.622 91.3 20 <br /> Boron 100 10 100 0.113 77.5 20 <br /> Cadmium 50.6 0.5 51.2 1.09 101 20 <br /> Chromium 86 3 85 0.568 86.2 20 <br /> Copper 58 1 59 0.414 94.2 20 <br /> Iron 9040 10 9040 0.0304 1520 20 S <br /> Lead 56 15 57 1.85 89.2 20 <br /> Manganese 328 1 329 0.0338 116 20 <br /> Molybdenum 37 5 37 0.256 65.7 20 S <br /> Nickel 146 1 147 0.322 96.2 20 <br /> Phosphorus 330 10 330 0.236 87.2 20 <br /> Selenium 100 10 100 1.16 97.5 20 <br /> Silver 23 5 23 0.657 91.0 20 <br /> Thallium 38 15 39 1.55 76.7 20 <br /> Uranium 50 10 50 0.139 94.7 20 <br /> Vanadium 64 5 65 0.695 98.5 20 <br /> Zinc 65 15 66 1.47 87.0 20 <br /> S2301346-001AMSD(02/13/23 18:53) RunNo:207974 PrepDate: 02/10/23 8:00 BatchlD:20413 <br /> Analyte Result RL Conc %RPD %REC %RPD Limits Qual <br /> Calcium 30400 50 30600 0.461 184 20 S <br /> Potassium 5960 50 6150 3.04 265 20 S <br /> Silicon 740 10 760 1.97 20 <br /> Sodium 2250 50 2240 0.347 105 20 <br /> Total(3050)Metals by ICP-6010C Sample Type: DUP Units: mg/Kg <br /> S2301346-001AD(02/13/2318:35) RunNo:207974 PrepDate: 02/10/23 8:00 BatchlD:20413 <br /> Analyte Result RL Ref Samp %RPD %REC %RPD Limits Qual <br /> Aluminum 12100 10 11900 2.37 20 <br /> Antimony ND 20 ND 20 <br /> Arsenic 6 3 6 4.33 20 <br /> Barium 508 0.5 503 0.974 20 <br /> Beryllium ND 0.7 ND 20 <br /> Boron ND 10 ND 20 <br /> Cadmium ND 0.5 ND 20 <br /> Calcium 29400 50 28600 2.85 20 <br /> Chromium 43 3 42 0.209 20 <br /> Copper 12 1 11 3.85 20 <br /> Iron 7300 10 7140 2.25 20 <br /> Lead ND 15 ND 20 <br /> Magnesium 3860 50 3770 2.35 20 <br /> Manganese 277 1 270 2.54 20 <br /> Molybdenum ND 5 ND 20 <br /> Nickel 26 1 26 0.983 20 <br /> Phosphorus 230 10 220 3.88 20 <br /> Page 6 of 7 <br />