If Burba can control the footprint of his "Mobile" Extraction units, he can then control the materials pulled from the feed stock.
He is such a sneaky little guy that Burba.
1st Stage Lithium - secret sauce brine 2nd Stage Potassium - a patented brine coming soon 3rd stage Cobalt - probably a patent on a brine being stamped at the patent office 4th stage Manganese(could be a couple other elements) - general brine
This is probably a play written up in his play book, won't turn to this until he gets the main focus up and running.