Ann: Change of Director's Interest Notice x 2, page-161

Alex Grant, Founder of Lilac Solutions, Principal, Jade Cove Partners, San Francisco, USA:

"We also discussed the challenges of reinjecting spent brine in DLE projects, since brine without lithium in it must be returned to the salar in a way that it somehow does not mix with the depleted brine, which could affect the lithium resource. Carlos admitted he has always been skeptical that brine reinjection is possible, but we discussed that new strategies could be developed to make it possible. We also discussed the reality that DLE technologies must be developed for specific brine chemistries and subject to available infrastructure and other characteristics, and that “copy and paste” typically does not work well. Carlos mentioned the importance of recovery (quantity of lithium as final product related to the total lithium in the brine extracted) as a resource in itself that can help reducing the brine pumping intensity of projects, and Emily asked if this could be done at the expense of higher water consumption (“killing Peter to save Paul”). The panel agreed that recovery is one of several indicators (as freshwater and energy consumption) that have to be evaluated and optimized. It is well known that DLE does not necessarily decrease freshwater consumption for brine projects."

https://www.jadecove.com/research/islithiumbrinewaterantiwebinar