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Trust our People.Trust our Data. j� Billings,MT 800.735.4489•Casper,WY 888.235.0515 <br /> • Gillette,WY 866.686.7175•Helena,MT 877.472.0711 <br /> QA/QC Summary Report <br /> Prepared by Casper,WY Branch <br /> Client: Energy Fuels Resources(USA) Inc Report Date: 07/10/17 <br /> Project: Whirlwind Mine Work Order: C17060348 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qua] <br /> Method: RA-05 Batch: RA228-5530 <br /> Lab ID: LCS-228-RA226-8545 Laboratory Control Sample Run:TENNELEC-3_170627A 07/05/17 14:01 <br /> Radium 228 9.4 pCi/L 93 80 120 <br /> Lab ID: MB-RA226-8545 3 Method Blank Run:TENNELEC-3_170627A 07/05/17 14:01 <br /> Radium 228 -0 006 pCi/L U <br /> Radium 228 precision(t) 0.8 pCi/L <br /> Radium 228 MDC 1 pCi/L <br /> Lab ID: C17060348-003DMS Sample Matrix Spike Run.TENNELEC-3_170627A 07/05/17 14.01 <br /> Radium 228 24 pCdL 114 70 130 <br /> Lab ID: C17060348-003DMSD Sample Matrix Spike Duplicate Run-TENNELEC-3_170627A 07/05/17 14.01 <br /> Radium 228 20 pCi/L 94 70 130 18 20 <br /> Qualifiers: --------- _ _— _ _ <br /> RL-Analyte reporting limit ND-Not detected at the reporting limit. <br /> MDC-Minimum detectable concentration U-Not detected at minimum detectable concentration <br /> Page 27 of 29 <br />