Atlas Corp., Cotter Corp., Homestake Minerals and Umetco Corp. prepared the historical reserve and resource estimates reported here. All companies, except Homestake operated their own processing plant (mill) and produced ores from a large number of operating mines located in the Utah-Colorado region. While each company had its own resource classification system and terminology, both systems were related to terms adopted by the U.S. Geological Survey and the U.S. Bureau of Mines (Geological Survey Bull. 1450-A, 1976), and U.S.G.S. 1980, Circular 831, “Principles of a Resource/Reserve Classification For Minerals”.
The initial evaluation of the I-70 Uranium Project in Emery County, Utah, based on detailed historical data from Atlas Corp1., confirms a significant historical uranium inventory and identifies multiple high-priority areas for follow-up exploration. The conversion of the historical resource estimates to a current mineral resource under NI 43-101 for each property will require additional data review and analysis, and if necessary additional confirmatory exploration work. As part of its ongoing analysis and review of each of its uranium-vanadium properties, Urano Energy will prioritize the Properties for completion of NI 43-101 Technical Reports.
Urano Energy’s documented 4.5 million cumulative pounds of uranium (“U3O8”) historical reserve inventory comes from over half of the projects. This is only the beginning of building Urano’s portfolio of properties with historical reserves and resources. The size of the reserve and resource inventory is expected to substantially increase as the work of reviewing and analyzing the large database associated with all Urano’s properties.
Uranium mining in Utah and Colorado has a significant history, closely tied to the discovery of rich uranium mineral deposits in Colorado’s southwestern region and contiguous southeastern Utah. The Uravan Mining District of Colorado and Utah hosts the Uravan Mineral Belt, a 70-mile (110km) zone of uranium-vanadium deposits in San Miguel, Montrose, and Mesa counties, Colorado, and Grand County, Utah with a history of 80 million pounds of uranium oxide (U3O8) production and over 400 million pounds of vanadium pentoxide (V2O5) production since 1945. The uranium and vanadium production has come from the Colorado Plateau type uranium/vanadium deposits, hosted by sandstones of the Upper-Jurassic Salt Wash Member of the Morrison Formation.
Today, the Uravan Mineral Belt remains a key area for uranium exploration, with modern mining techniques targeting its widely distributed deposits to meet the new opportunities for production as global demand for uranium continues to grow. The region’s rich history of uranium mining has established Utah and Colorado as long-standing and significant players in the global nuclear energy sector. In addition to Colorado’s Uravan Belt, Utah has produced uranium-vanadium from its San Rafael River, as well as the La Sal, La Sal Creek, and Lisbon Valley Mining Districts.
Technical information on this webpage has been approved by Douglas Underhill, PhD. Geology, MBA, CPG, a Director of Urano Energy Corp. and “Qualified Person” as defined by National Instrument 43-101 – Standards of Disclosure for Mineral Projects.
1 Historical estimates were prepared for Atlas Corp. using the classification categories indicated reserves and inferred reserves consistent with 1976 USGS principles of classification applicable at that time. The above historical estimates were not prepared using the current definitions of “mineral reserve” and “mineral resource” as those terms are used in National Instrument 43-101 (“NI 43-101”) and defined under current CIM standards. The historical estimate is considered reliable and is relevant for the purpose of conducting data analysis and future exploration on the Properties. Additional review and analysis of the available data, and if necessary additional exploration work, including confirmatory drilling and sampling, is required to verify and upgrade the historical estimates as a current mineral resource or mineral reserve. A qualified person has not done sufficient work to classify the historical estimate as current mineral resources or mineral reserves. The Company is not treating the historical estimate as current mineral resources or mineral reserves. No specific analyses of V2O5 are available for Company’s Green River deposits, as at the time of reserve estimation, Atlas Corp. considered the concentration of vanadium to be too low for economic production. However, references to Indicated and Inferred Ore are considered similar to indicated and inferred mineral resources.