This technical report describes a preliminary economic assessment for an in-situ recovery uranium property in Sweetwater County, Wyoming, with an effective date of December 31, 2021.
Report context
The report titled “PRELIMINARY ECONOMIC ASSESSMENT LOST CREEK ISR URANIUM PROPERTY, SWEETWATER COUNTY, WYOMING, USA” is dated March 7, 2022 and was prepared for a company headquartered at 10758 W. Centennial Road, Suite 200, Littleton, CO 80127. The report was prepared under NI 43-101 standards. The property location is in Sweetwater County, Wyoming, USA, and comprises mining claims, mineral leases, and surface use agreements.
Processing route
Mineral processing and metallurgical testing
Section 13.0 of the report addresses mineral processing and metallurgical testing. The report does not provide detailed flowsheet descriptions, performance data, or specific testwork results within the available evidence. No design parameters for processing are presented in this section from the original technical report.
Recovery methods
Section 17.0 describes proposed recovery methods. Plant processing is covered in Section 17.1. Section 17.2 addresses energy, water, and process materials. Liquid disposal is described in Section 17.3, and solid waste disposal is covered in Section 17.4. Plant personnel requirements are listed in Section 17.5.
Mining methods
Section 16.0 outlines the proposed mining methods. The mineral deposit amenability is discussed in Section 16.1. Mine development is described in Section 16.2. Piping is covered in Section 16.3, and header houses in Section 16.4. Wellfield reagents and electricity are addressed in Section 16.5. Mining fleet equipment and machinery are listed in Section 16.6, and mining personnel in Section 16.7.
Key reported parameters
The report does not provide a consolidated table of processing parameters within the available evidence. No specific design, actual operating data, or testwork parameters are reported in the sections extracted.
| Parameter | Value | Basis |
|---|---|---|
| No parameters reported | , | , |
Project website: https://www.ur-energy.com/projects/lost-creek
Technical qualifications
The report is a preliminary economic assessment prepared under NI 43-101. The qualified persons who supervised preparation are Benjamin J. Schiffer, P.G. and Ray Moores, P.E., both of WWC Engineering, 1849 Terra Avenue, Sheridan, WY 82801. The report includes sections on mineral processing and metallurgical testing (Section 13.0), mineral resource estimates (Section 14.0), mineral reserve estimates (Section 15.0), mining methods (Section 16.0), and recovery methods (Section 17.0). Mineral resource estimates are based on assumptions, cutoff selection, resource classification, methodology including mineral intercepts and GT contouring, and summary of resources, with resource estimation auditing and risk assessment covered in Sections 14.2.5 and 14.2.6.
Source: “PRELIMINARY ECONOMIC ASSESSMENT LOST CREEK ISR URANIUM PROPERTY, SWEETWATER COUNTY, WYOMING, USA” dated March 7, 2022, effective date December 31, 2021.
