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,/! CE AgaMa, 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: 3/22/2023 <br /> Work Order. S2302101 Report ID: S2302101001 <br /> Project: Whirlwind <br /> Radium 226 by GafTech Sample Type: MBLK Units: pCi/L <br /> MB-743(03/14/2310:12) RunNo:208813 PrepDate. 02/21/23 16:40 BatchlD•20445 <br /> Analyte Result RL Spike Ref Samp %REC %Rec Limits Qual <br /> Radium 226(Dissolved) ND 1 <br /> Radium 226 by GarTech Sample Type: LCS Units: pCi/L <br /> LCS-743(03/14/23 15:59) RunNo:208813 PrepDate: 02/21/23 16:40 BatchlD:20445 <br /> Analyte Result RL Spike Ref Samp %REC %Rec Limits Qual <br /> Radium 226(Dissolved) 34 1 39.5 85.3 77-134 <br /> Radium 226 by Ga/Tech Sample Type. LCSD Units: pCi/L <br /> LCSD-743(03/15/23 08:38) RunNo:208813 PrepDate: 02/21/23 16:40 BatchlD:20445 <br /> Analyte Result RL Conc %RPD %REC %RPD Limits Qual <br /> Radium 226(Dissolved) 37 1 34 9.10 93.4 20 <br /> Radium 226 by Ga/Tech Sample Type: MS Units: pCi/L <br /> MS-743(03/16/23 08:33) RunNo:208813 PrepDate: 02/21/23 16:40 BatchlD:20445 <br /> Analyte Result RL Spike Ref Samp %REC %Rec Limits Qual <br /> Radium 226(Dissolved) 38 1 39.5 ND 95.1 60-140 <br /> Radium 226 by Garrech Sample Type: MSD Units: pCi/L <br /> MSD-743(03/16/2314:35) RunNo:208813 PrepDate: 02/21/23 16:40 BatchlD:20445 <br /> Analyte Result RL Conc %RPD %REC %RPD Limits Qual <br /> Radium 226(Dissolved) 38 1 38 0.582 95.7 20 <br /> Radium 228 by Ga/Tech Sample Type: MBLK Units: pCi/L <br /> MB-743(03/14/23 10:12) RunNo:208813 PrepDate: 02/21/23 16:40 BatchlD:20445 <br /> Analyte Result RL Spike Ref Samp %REC %Rec Limits Qual <br /> Radium 228(Dissolved) ND 1 <br /> Radium 228 by GarTech Sample Type: LCS Units: pCi/L <br /> LCS-743(03/14/23 15:59) RunNo:208813 PrepDate: 02/21/23 16:40 BatchlD:20445 <br /> Analyte Result RL Spike Ref Samp %REC %Rec Limits Qual <br /> Radium 228(Dissolved) 24 1 24 98.7 68-140 <br /> Radium 228 by Garrech Sample Type: LCSD Units: pCUL <br /> LCSD-743(03/15/23 08:38) RunNo:208813 PrepDate: 02/21/23 16:40 BatchID:20445 <br /> Analyte Result RL Conc %RPD %REC %RPD Limits Qual <br /> Radium 228(Dissolved) 26 1 24 7.93 107 20 <br /> Radium 226 by Ga/Tech Sample Type: MS Units: pCUL <br /> MS-743(03/16/23 08:33) RunNo:208813 PrepDate: 02/21/23 16:40 BatchlD-20445 <br /> Analyte Result RL Spike Ref Samp %REC %Rec Limits Qual <br /> Radium 228(Dissolved) 24 1 24 ND 100 54-133 <br /> Radium 228 by Garrech Sample Type: MSD Units: pCi/L <br /> MSD-743(03116/2314:35) RunNo:208813 PrepDate: 02/21/23 16:40 BatchlD:20445 <br /> Analyte Result RL Conc %RPD %REC %RPD Limits Qual <br /> Radium 228(Dissolved) 21 1 24 11.9 88.8 20 <br /> Page 11 of 16 <br />