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�#2Anwd• 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 /> Cations by ICP(Method 200.7) Sample Type: MBLK Units: mg/L <br /> MBLK DISS/CAT(02/09/23 10:38) RunNo:207890 <br /> Analyte Result RL Spike Ref Samp %REC %Rec Limits Qual <br /> Calcium ND 1 <br /> Magnesium ND 1 <br /> Potassium ND 1 <br /> Sodium ND 2 <br /> Cations by ICP(Method 200.7) Sample Type: LCS Units: mg/L <br /> DISS LCS(02/09/23 10:41) RunNo:207890 <br /> Analyte Result RL Spike Ref Samp %REC %Rec Limits Qual <br /> Calcium 41 1 41 100 85-115 <br /> Magnesium 41 1 41 101 85-115 <br /> Potassium 41 1 41 99.6 85-115 <br /> Sodium 42 2 41 102 85-115 <br /> Cations by ICP(Method 200.7) Sample Type: MS Units- mg/L <br /> S2302101-002AS(02/09/2311:58) RunNo:207890 <br /> Analyte Result RL Spike Ref Samp %REC %Rec Limits Qual <br /> Calcium 31 1 27.5 ND 111 70-130 <br /> Magnesium 32 1 27.5 ND 117 70-130 <br /> Potassium 34 1 27.5 ND 123 70-130 <br /> Sodium 36 2 27.5 3 119 70-130 <br /> Cations by ICP(Method 200.7) Sample Type: MSD Units: mg/L <br /> S2302101-002ASD(02/09123 12:00) RunNo:207890 <br /> Analyte Result RL Conc %RPD %REC %RPD Limits Qual <br /> Calcium 29 1 31 6.83 104 20 <br /> Magnesium 30 1 32 8.06 108 20 <br /> Potassium 31 1 34 7.80 114 20 <br /> Sodium 33 2 36 7.42 110 20 <br /> Cations by ICP(Method 200.7) Sample Type: DUP Units: mg/L <br /> S2302101-001AD(02/09/23 11.53) RunNo:207890 <br /> Analyte Result RL Ref Samp %RPD %REC %RPD Limits Qual <br /> Calcium 3 1 2 21.4 20 R <br /> Magnesium 4 1 3 21.7 20 R <br /> Potassium 8 1 7 15.6 20 <br /> Sodium 43 2 42 2.40 20 <br /> Page 9 of 16 <br />