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BceArIaIytICal- Pace Analytical <br /> 1673 Terra Avenue Sheridan,WY 82801 ph:(307)672-8945 <br /> Sample Analysis Report <br /> Company: Energy Fuels Resources(USA) Inc. Date Reported 3/28/2024 <br /> 225 Union Blvd. Suite 600 Report ID: S2402263001 <br /> Lakewood, CO 80228 <br /> ProjectName: Whirlwind Waste Rock WorkOrder: S2402263 <br /> Lab ID: S2402263-001 CollectionDate: 2/20/2024 8:15:00 AM <br /> ClientSample ID: 2023_Whirlwind_WR DateReceived: 2/22/2024 10:07:00 AM <br /> COC: FieldSampler: TH <br /> PWS ID: Matrix: Solid <br /> Comments <br /> Analyses Result Units Qual RL Method Date Analyzed/Init <br /> Radionuclides-Total <br /> Gross Alpha 8.2 pCi/g 2 SM 7110 03/06/2024 1038 AEF <br /> Gross Alpha Precision(±) 1.2 pCi/g SM 7110 03/06/2024 1038 AEF <br /> Gross Beta 15.0 pCi/g 3 SM 7110 03/06/2024 1038 AEF <br /> Gross Beta Precision(±) 1.2 pCi/g SM 7110 03/06/2024 1038 AEF <br /> Radium 226 0.8 pCi/g 0.2 EPA 901.1 Mod. 03/26/2024 1552 WN <br /> Radium 226 Precision(±) 0.2 pCi/g EPA 901.1 Mod. 03/26/2024 1552 WN <br /> Radium 228 1.4 pCi/g 0.2 EPA 901.1 Mod. 03/26/2024 1552 WN <br /> Radium 228 Precision(±) 0.5 pCi/g EPA 901.1 Mod. 03/26/2024 1552 WN <br /> Thorium 230 0.5 pCi/g 0.2 ACW01 03/07/2024 1036 AEF <br /> Thorium230 Precision(±) 0.2 pCi/g ACW01 03/07/2024 1036 AEF <br /> Metals-Total <br /> Aluminum 17300 mg/Kg 10 EPA 6010C 02/27/2024 1845 DG <br /> Antimony ND mg/Kg 20 EPA 6010C 02/27/2024 1845 DG <br /> Arsenic 4 mg/Kg 3 EPA 6010C 02/27/2024 1845 DG <br /> Barium 611 mg/Kg 0.5 EPA 6010C 02/27/2024 1845 DG <br /> Beryllium 0.9 mg/Kg 0.7 EPA 6010C 02/27/2024 1845 DG <br /> Boron 20 mg/Kg 10 EPA 6010C 02/27/2024 1845 DG <br /> Cadmium ND mg/Kg 0.5 EPA 6010C 02/27/2024 1845 DG <br /> Calcium 38600 mg/Kg 50 EPA 6010C 02/27/2024 1845 DG <br /> Chromium 8 mg/Kg 3 EPA 6010C 02/27/2024 1845 DG <br /> Copper 14 mg/Kg 1 EPA 6010C 02/27/2024 1845 DG <br /> Iron 10100 mg/Kg 10 EPA 6010C 02/27/2024 1859 DG <br /> Lead ND mg/Kg 15 EPA 6010C 02/27/2024 1845 DG <br /> Magnesium 5630 mg/Kg 50 EPA 6010C 02/27/2024 1845 DG <br /> Manganese 315 mg/Kg 1 EPA 6010C 02/27/2024 1845 DG <br /> Mercury ND mg/Kg 0.2 7471B 03/05/2024 1646 JGU <br /> Molybdenum ND mg/Kg 5 EPA 6010C 02/27/2024 1845 DG <br /> Nickel 7 mg/Kg 1 EPA 6010C 02/27/2024 1845 DG <br /> Phosphorus 440 mg/Kg 10 EPA 6010C 02/27/2024 1845 DG <br /> Potassium 6420 mg/Kg 50 EPA 6010C 02/27/2024 1845 DG <br /> Selenium ND mg/Kg 10 EPA 6010C 02/27/2024 1845 DG <br /> Silicon 840 mg/Kg 10 EPA 6010C 02/27/2024 1845 DG <br /> Silver ND mg/Kg 5 EPA 6010C 02/27/2024 1845 DG <br /> Sodium 2000 mg/Kg 50 EPA 6010C 02/27/2024 1845 DG <br /> Thallium ND mg/Kg 15 EPA 6010C 02/27/2024 1845 DG <br /> Uranium ND mg/Kg 10 EPA 6010C 02/27/2024 1845 DG <br /> Vanadium 14 mg/Kg 5 EPA 6010C 02/27/2024 1845 DG <br /> Zinc 35 mg/Kg 15 EPA 6010C 02/27/2024 1845 DG <br /> These results apply only to the samples tested. Page 1 of 1 <br />