Ann: Non-Process Infrastructure Completed, page-126

Apparently they did 5 "long term" trench tests but good luck trying to find the details in the DFS which tells us the operation is 71% trench dependent in the early years.
Presumably the dozen instos had less trouble finding the details or perhaps they only had Tanzanian uranium profits on their minds.
The ratio of days test pumping brine to hundreds of millions of $$$ raised/borrowed is spectacular and definitely sector leading.