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Ouray Silver Mines, Inc. <br /> 1900 Main St. Unit 1 <br /> PO Box 564 <br /> Ouray,CO 81427 <br /> 0,'RA} _5ILI ER A 11NE <br /> January 291", 2021 <br /> Mr. Lucas West <br /> Environmental Protection Specialist <br /> Colorado Division of Reclamation Mining and Safety RECEIVED <br /> 101 3rd Street <br /> Grand Junction, CO 81501 JAN 3 1 2022 <br /> Subject: Quarterly Milling Report for the Fourth Quarter 2021 p,,,-ISION OF RECLAMATION, <br /> DRMS Permit No. M-2012-032 MIWNG&SAFETY-MINERALS <br /> Revenue Mine, Ouray County,Colorado <br /> Dear Mr. West, <br /> Ouray Silver Mines, Inc. (OSMI) is providing this Quarterly Milling Report(Report)to Division <br /> of Reclamation, Mining and Safety (DRMS) in accordance with obligations stated in Technical <br /> Revision (TR)-15 to document reagent use and tailings management during the fourth quarter <br /> 2021. <br /> 1. General Operations/Ore Processed <br /> Mill commissioning continued during the fourth quarter 2021. Construction of the zinc <br /> circuit, installing pipping, fine tuning, installing automation and addressing normal start- <br /> up issues were the focus of operations during this time. <br /> During the quarter approximately 11,400 tons of ore/waste rock were mined and <br /> approximately 2,400 tons of ore were processed through the mill. <br /> 2. Reagent Transport, Storage and Use <br /> Until the new Reagent Room is completed and certified as an Environmental Protection <br /> Facility, OSMI has been handling chemicals in accordance with the TR-15 Addendum <br /> Request approved by the Division on November 2"d, 2021 to allow limited amounts of <br /> reagents to be stored in the Flotation Gallery. <br /> A summary of reagent use for the quarter is provided in the following table. <br /> Phone:(970)325-9930 ♦ Fax:(970)325-9824 <br />