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4n ' Pace Analytical <br /> ceA*tkal <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 /> Fluoride by SM 4500 Sample Type: MBLK Units: mg/L <br /> BLANK(0211 0/23 1 8:01) RunNo:207927 <br /> Analyte Result RL Spike Ref Samp %REC %Rec Limits Qual <br /> Fluoride ND 0.1 <br /> Fluoride by SM 4500 Sample Type: LCS Units: mg/L <br /> ATQC(02/10/23 22:51) RunNo:207927 <br /> Analyte Result RL Spike Ref Samp %REC %Rec Limits Qual <br /> Fluoride 3.2 0.1 3 107 85-115 <br /> Fluoride by SM 4500 Sample Type: MS Units: mg/L <br /> S2302132-003ASPK MS(02/11/23 02:09) RunNo:207927 <br /> Analyte Result RL Spike Ref Samp %REC %Rec Limits Qual <br /> Fluoride 2.5 0.1 2.5 ND 97.7 80-120 <br /> Fluoride by SM 4500 Sample Type: MSD Units: mg/L <br /> S2302132-003ASPK MSD(02/11/23 02:13) RunNo:207927 <br /> Analyte Result RL Conc %RPD %REC %RPD Limits Qual <br /> Fluoride 2.6 0.1 2.5 2.39 100 20 <br /> Fluoride by SM 4500 Sample Type: DUP Units: mg/L <br /> S2302101-002AD(02110123 20:04) RunNo:207927 <br /> Analyte Result RL Ref Samp %RPD %REC %RPD Limits Qual <br /> Fluoride ND 0.1 ND 20 <br /> Page 6 of 16 <br />