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COLORADO <br /> a Division of Reclamation, <br /> Mining and Safety <br /> Department of Natural Resources <br /> June 7, 2022 <br /> Scott Bakken <br /> Energy Fuels Resources (USA) Inc. <br /> 225 Union Blvd, Suite 600 <br /> Lakewood, CO 80228 <br /> RE: Whirlwind Mine, Permit No. M-2007-044, Change of Status(CS-1)Approval, Acknowledgement- <br /> End of TC-2 and Resumption of Mining Operations <br /> Dear Mr. Bakken: <br /> The Division of Reclamation Mining and Safety(Division) has concluded its review of the Change of Status <br /> Request(CS-1) dated May 19, 2022. On June 7, 2022,the Division approved the request and has updated <br /> the above-mentioned site status to active status per your request. This letter is to notify you that you are <br /> no longer in Temporary Cessation (TC-2) and that Mining Operations should resume. <br /> The Division has updated the reclamation cost estimate for surface reclamation of the Whirlwind Mine <br /> and found the currently held bond amount of$375,078.00 to be sufficient (attached). Safety rehab work <br /> may be conducted in underground workings for the time being. Prior to any additional developments of <br /> mine workings,the underground portion of the reclamation cost estimate specifically,the bulkhead costs, <br /> will need to be re-evaluated. The Operator will need to provide the Division with three bids from <br /> independent contractors for the scope of work outlined under the Division's Memo: Cost Estimate for <br /> Water Impounding Concrete Bulkheads dated Nov. 14, 2007. Any additional financial warranty required <br /> to cover the underground closures will need to be posted prior to work commencing. <br /> If you require additional information, or have questions or concerns, please feel free to contact me. <br /> Sincerely, <br /> A�0�e <br /> Amy Yeldell <br /> Environmental Protection Specialist <br /> Ec:Travis Marshall, Senior EPS, DRMS <br /> o� C0 <br /> Physical: 1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 <br /> Mailing: DRMS Room 215, 1001 E 62nd Ave, Denver, CO 80216 https://drms.co[orado.gov <br /> Jared S. Polis, Governor I Dan Gibbs, Executive Director I Virginia Brannon, Director * 1 ** <br /> 876 <br />