Ann: Update on Corporate Review and Management Changes, page-479

http://www.copyright link/street-talk/galaxy-brings-goldman-into-its-defence-orbit-20170823-gy2wvt

It's behind a pay wall, but if you copy the link then Google it you may bipass it...

"While brine-based lithium is cheaper to produce, sources have said Asian battery manufacturers have stated a preference for the higher quality lithium derived from hard rock assets, driving brine-based companies and upstream players to look at deals they would not have previously considered."