These guys must just be up the road and around the corner from us. Since mineral extraction can happen down or up stream of the lithium extraction and these guys are the only ones that have been producing in the US - I wonder if BBB has been talking to them?
“Magnesium metal has been commercially produced from the waters of Great Salt Lake since 1972
US Magnesium LLC at Rowley, Utah. That facility currently accounts for all of primary magnesium production in North America and about 10% of the world’s magnesium metal production.”