Koch Industries a major investor. Ford and LG Energy will buy their lithium.
They will use DLE (direct lithium extraction) technology which returns spent brine to the source avoiding a waste stream disposal problem.
Compass will license technology from Energy Source, which has Schlumberger as an investor.
California recently enacted a state lithium tax that may discourage Salton Sea investments.
Several other DLE companies seem to be folding. Bill Gates supported Lilac Solutions is mentioned as is EnergyX in Bolivia.