Sinclair Caseium Mine, page-3

caesium is an in demand material, no world mine source officially since Sinclair was mined. If we find any useful deposit it could be mined like Sinclair to add $. I doubt any find would collapse the price, such a scarce material, critical. Mined, processed and stored for Government reserves in leading science countries like US, UK etc. Likely the price will increase dramatically, so even small amounts become economic. Wouldn't discount the potential to add value to ESS

ESS main game is Lithium, very promising, for myself undervalued.

1		Caesium (Cs≥99.5%)	9.89/g (9,890/kg)

USGS 2022 write up

Events, Trends, and Issues: Domestic cesium occurrences will likely remain uneconomic unless market conditions
change. No known human health issues are associated with naturally occurring cesium, and its use has minimal
environmental impact. Manufactured radioactive isotopes of cesium have been known to cause adverse health
effects. Certain cesium compounds may be toxic if consumed. Food that has been irradiated using the radioisotope
cesium-137 has been found to be safe by the U.S. Food and Drug Administration.

During 2021, no primary cesium mine production was reported globally but cesium was thought to have been mined
in China. Mine production of cesium from all countries, excluding China, ceased within the past two decades.
Production in Namibia ceased in the early 2000s, followed by the Tanco Mine in Canada shutting down and later
being sold after a mine collapse in 2015. The Bikita Mine in Zimbabwe was depleted of pollucite ore reserves in 2018,
and the Sinclair Mine in Australia completed the mining and shipments of all economically recoverable pollucite ore in
2019. Recent reports indicate that with current processing rates for the only operating intermediate refinery in
Germany, the world’s stockpiles of cesium ore, excluding those in China, will be depleted within a few years.