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4ceA*tr2l' 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 /> Total Recoverable Metals by EPA 200.7-Water Sample Type: DUP Units: mg/L <br /> S2302101-001 DD(02/13/23 17:48) RunNo:207968 PrepDate: 02/10/23 9:00 BatchlD:20411 <br /> Analyte Result RL Ref Samp %RPD %REC %RPD Limits Qual <br /> Manganese 0.10 0.02 0.11 1.03 20 <br /> Nickel ND 0.01 ND 20 <br /> Zinc 0.06 0.02 0.06 2.97 20 <br /> Total Recoverable Metals by EPA 200.8-Water Sample Type: MBLK Units: mg/L <br /> MB-20411 (02/13/23 19:43) RunNo:207995 PrepDate: 02/10/23 9:00 BatchlD:20411 <br /> Analyte Result RL Spike Ref Samp %REC %Rec Limits Qual <br /> Antimony ND 0.005 <br /> Arsenic ND 0.005 <br /> Barium ND 0.5 <br /> Cadmium ND 0.002 <br /> Copper ND 0.01 <br /> Lead ND 0.002 <br /> Molybdenum ND 0.02 <br /> Selenium ND 0.005 <br /> Silver ND 0.003 <br /> Thallium ND 0.001 <br /> Uranium ND 0.001 <br /> Vanadium ND 0.02 <br /> Total Recoverable Metals by EPA 200.8-Water Sample Type: LCS Units: mg/L <br /> Ps� <br /> 13/23 19:56) RunNo:207995 PrepDate. 02/10/239:00 BatchlD:20411 <br /> Analyte Result RL Spike Ref Samp %REC %Rec Limits Qual <br /> Antimony 0.207 0.005 0.2 103 85-115 <br /> Arsenic 0.204 0.005 0.2 102 85-115 <br /> Barium ND 0.5 0.2 103 85-115 <br /> Cadmium 0.209 0.002 0.2 105 85-115 <br /> Copper 0.20 0.01 0.2 99.1 85-115 <br /> Lead 0.209 0.002 0.2 105 85-115 <br /> Molybdenum 0.22 0.02 0.2 108 85-115 <br /> Selenium 0.391 0.005 0.4 97.8 85-115 <br /> Silver 0.106 0.003 0.1 106 85-115 <br /> Thallium 0.205 0.001 0.2 103 85-115 <br /> Uranium 0.214 0.001 0.2 107 85-115 <br /> Vanadium 0.21 0.02 0.2 103 85-115 <br /> Total Recoverable Metals by EPA 200.8-Water Sample Type: MS Units: mg/L <br /> S2302101-002DS(02/13123 20:31) RunNo:207995 PrepDate: 02/10/23 9:00 BatchlD:20411 <br /> Analyte Result RL Spike Ref Samp %REC %Rec Limits Qual <br /> Antimony 0.207 0.005 0.2 ND 103 70-130 <br /> Arsenic 0.201 0.005 0.2 ND 101 70-130 <br /> Barium ND 0.5 0.2 ND 104 70-130 <br /> Cadmium 0.209 0.002 0.2 ND 105 70-130 <br /> Copper 0.21 0.01 0.2 ND 103 70-130 <br /> Lead 0.201 0.002 0.2 ND 100 70-130 <br /> Molybdenum 0.20 0.02 0.2 ND 101 70-130 <br /> Selenium 0.394 0.005 0.4 ND 98.5 70-130 <br /> Silver 0.103 0.003 0.1 ND 103 70-130 <br /> Page 15 of 16 <br />