Yes, I expect they're still working on scaling it up.
Previousy they'd used chemical purification to achieve 99.95% purity for button battery tests. The results were good, but larger-scale testing was always needed, i.e. CDP quantities.
I came across a post from @olderwiser in 2019, which looks relevant now, since our starting point is about 95% purity:
A personalised tool to help users track selected stocks. Delivering real-time notifications on price updates, announcements, and performance stats on each to help make informed investment decisions.
(20min delay)