Ann: AGREEMENT TO ACQUIRE MAJOR LITHIUM RESOURCE IN NEVADA, page-19

On a quick analysis (could be wrong, entirely an amateur assessment), the issue seems to be that Ameriwest has made placer claims on areas that have already had lode claims located by Authium. Some research revealed (Wyoming Law Journal):

'Basically, the mining law favors the first locator who, in good faith, occupies mineral lands and does improvement work on them as against an
intruder who goes on land which he knows has been located, claimed, and occupied by another, and tries to oust him by doing discovery work of his
own.

If the first locator, from knowledge and information available to him at the time of claiming a given area, could reasonably believe that the deposit was lode in character, then his right of possession as against a subsequent placer locator should be sustained even though there should be a conflict of opinion between other prospectors or between experts as to the character of the deposit. Such an approach does not preclude a holding that a specific location is
void in the case of the obvious type of deposit, but it will ease the burden of the first locator in the questionable types of deposit.'

The burden of proof seems to be on Ameriwest as the interloper. It looks as though our side must have an expert or experts who have at least a reasonable case that the deposits can be defined as lode-based, such that they're confident of a win in court. And the SP goes up, we hope.