Enertopia Announces Restart of Lithium Solution Testing Program

KELOWNA, British Columbia, April 28, 2020 (GLOBE NEWSWIRE) -- Enertopia Corporation (ENRT) on the OTC (the "Company" or "Enertopia") expects to restart its lithium solution testing program in the coming weeks as COVID-19 work restrictions are relaxed and removed.

Our pre-pH adjustments have demonstrated positive outcomes, as contaminant minerals are greatly reduced. The results are a synthetic lithium brine consistently showing the lowest contaminant levels to be processed compared to many other lithium projects today.  

“Our ongoing solution testing of the drilled lithium horizons continues to provide great insights and novel ways to strive for a low-cost mining & processing solution to unlock the potential value of the lithium enriched claystone. We continue to believe that the lithium hosted claystone deposits in Nevada could become major sources of lithium production in the 2020s and offer the USA a secure domestic supply of battery grade lithium products,” stated CEO Robert McAllister.

Key Takeaways from our recent 43-101 Report

• Preliminary testing for the extraction of the lithium from the mined material has indicated that the material will be relatively inexpensive to process.
• From the preliminary testing, the sediments will not require crushing or grinding prior to processing but may require some preprocessing to upgrade the material by removing the coarser fraction, which has been found to be of lower grade.
• The type of processing envisioned will have a much smaller footprint than lithium brine operations, which now employ large evaporation ponds, making the proposed operation more environmentally friendly.

Table 1 below shows the average grade of each major lithologic unit within the model. the reduced sediments tend to be higher grade than the oxidized units and are in bold below.

Lithologic unit	Weighted average grade Li ppm
Surface Gravel	790
Upper Olive Claystone	834
Main Blue Claystone	1136
Dark Blue Black Claystone	1464
Lower Olive Mudstone	1082
Table 1

The full 43-101 Report can also be found on the company’s website at www.enertopia.com with further details.