Successful Lithium Brine Pumping Test at Clayton Valley South Project

VANCOUVER, BC - Pure Energy Minerals Limited has completed a constant-rate pumping test at its newest borehole, CV-3. The test ran continuously for approximately two days and included collection of brine samples along with extensive hydrological data on the aquifers. The pumping test was designed and supervised by Pure Energy’s specialist hydrogeological consultants, Montgomery & Associates. This successful test of CV-3 provided invaluable additional data for Pure Energy’s technical team to advance and refine its understanding of the Clayton Valley South (CVS) lithium resource. The technical data from this test will be integrated into the forthcoming Preliminary Economic Assessment (PEA).

The pumping test was configured using an electric submersible pump and monitoring apparatus in CV-3 and monitoring apparatus installed in CV-1, approximately 200 meters away. The test ran at a constant rate of 69 gallons per minute (4.4 liters per second) for its duration. The hydrogeologists collected approximately 23 separate brine samples for lithium analysis over the 46-hour pumping period. Monitoring revealed that the extracted brine from CV-3 demonstrated near steady-state elevated fluid conductivity and fluid density, comparable to that measured during discrete sampling of CV-3. This suggests the production of consistent lithium brine during the pumping test.

Patrick Highsmith, Pure Energy Minerals CEO commented, “This successful pumping test is another important milestone, advancing our exploration and development program towards a PEA. Dr. Andy Robinson and the Montgomery team have delivered a carefully designed and executed pumping test that will provide a number of the important parameters to be used in the design of a well field. This work is one more example of the professionalism of our team and our focus on building value in Clayton Valley.”

This pumping test was performed in accordance with a State of Nevada mineral exploration waiver and a permit issued to Pure Energy by the Nevada Division of Water Resources and the Nevada Division of Environmental Protection, which authorize the temporary extraction of brine from the well and subsequent discharge to surface. The mineral exploration waiver and discharge permit provide authorization from the State of Nevada for Pure Energy to conduct the described lithium exploration activities for the CVS Project.