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• Trust our People Trust our Data Billings,MT 406.252.6325•Casper,wy 307.235.0515 <br /> E Gillette.wy 307.686.7175•Helena,MT 406.442.0711 <br /> QA/QC Summary Report <br /> Prepared by Casper,WY Branch <br /> Client: Energy Fuels Resources(USA) Inc Work Order: C23081241 Report Date: 09/21/23 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: E903.0 Batch:RA226-11025 <br /> Lab ID: LCS-RA226-11025 3 Laboratory Control Sample Run.TENNELEC-3_230901 B 09/18/23 10-10 <br /> Radium 226 10 pCdL 104 70 130 <br /> Radium 226 precision(±) 2.0 pCi/L <br /> Radium 226 MDC 0.19 pCi/L <br /> Lab ID: MB-RA226-11025 3 Method Blank Run.TENNELEC-3 230901B 09/18/23 12.25 <br /> Radium 226 -0 05 pCi/L U <br /> Radium 226 precision(±) 0.1 pCi/L <br /> Radium 226 MDC 02 pCi/L <br /> Lab ID: C23081241-001FDUP 3 Sample Duplicate Run:TENNELEC-3_230901B 09/18/23 12:25 <br /> Radium 226 1 2 pCi/L 28 30 <br /> Radium 226 precision(±) 032 pCi/L <br /> Radium 226 MDC 017 pCi/L <br /> -The RER result is 0 80 <br /> Qualifiers: <br /> RL-Analyte Reporting Limit ND-Not detected at the Reporting Limit(RL) <br /> U-Not detected at Minimum Detectable Concentration(MDC) <br /> Page 17 of 20 <br />